122 results about "Hydraulic cylinder" patented technology

The invention discloses a hydraulic deep and rotary cultivation powdery ridge machine which comprises a traveling gear, a cab, an engine, a powdery ridge machine and a framework. The cab and the engine are arranged on the framework, the traveling gear is mounted on the lower portion of the framework and is driven by the engine, a cutting disc which is driven by a hydraulic motor is arranged on the front lower portion of the framework, and the powdery ridge machine is connected to the rear of the framework by hinge seats and hydraulic cylinder supports. The hydraulic deep and rotary cultivation powdery ridge machine has the advantages that the hydraulic deep and rotary cultivation powdery ridge machine can travel stably, is simple and practical, is high in soil smashing efficiency and favorable for growth of roots of crops, deep soil loosening, surface soil loosening and soil lump smashing functions are integrated, deep soil drilling effects can be realized, and the oxygen contents of deep positions of soil and the yield of the crops can be increased.

The invention provides a hydraulic reciprocating seal dynamic property detection device and design. The device comprises a dynamic friction property detection module, an inner leakage detection module and an outer leakage detection module which share a part of a testing device. When a hydraulic cylinder (1) is connected with a first testing cylinder (2) through an S-shaped tension pressure sensor (4), the S-shaped tension pressure sensor only achieves a connection effect, and thus the structure of the outer leakage detection module and the structure of the dynamic friction property detection module are similar. As long as an oil level sensor (8) is additionally arranged on a left gland of the first testing cylinder, the oil level sensor is welded to the left gland of the first testing cylinder through a supporting steel tube. According to the detection device, under the premise that the function requirements of a hydraulic reciprocating structure and a hydraulic execution element are not changed, detection of the dynamic friction property and the leakage property of a hydraulic reciprocating seal in application is conducted according to the normal operation condition of the hydraulic execution element. According to the hydraulic reciprocating seal dynamic property detection device and design, analysis and evaluation of the dynamic property of the hydraulic reciprocating seal can be achieved.

The invention discloses a supporting device and a supporting method for machining a propeller blade. The supporting device consists of a base and a vacuum sucker component positioned on the base, wherein the base comprises a bottom vacuum sucker, a chassis, a hydraulic cylinder and a piston rod, the middle of the bottom of the chassis is connected with the bottom vacuum sucker, the middle of the top of the chassis is provided with the hydraulic cylinder, the bottom end of the piston rod extends into the hydraulic cylinder, and the vacuum sucker component comprises a limiting switch, a spring, a support, a mandril, a positioning screw and a top sucker. The propeller blade is analyzed and calculated to determine the area in which the supporting device is positioned. For the propeller blade with the diameter less than 4 meters, supporting points of the supporting device are distributed at five positions of the propeller blade; and for the propeller blade with the diameter more than 4 meters, the supporting points of the supporting device are distributed at seven positions of the propeller blade. According to the invention, supporting can be quickly completed, and the stiffness of the supporting device and a supporting effect of the propeller blade can be improved.

The invention discloses a fixing device for plate processing, comprising a workbench, the bottom of the workbench is provided with outriggers, the bottom of the outriggers is provided with a pressure dividing plate, the top of the workbench is provided with a water platform, and the workbench The top of the workbench is located on the left side of the horizontal platform to be provided with a first frame, the top of the workbench is located on the right side of the horizontal platform to open a chute, and a slide block is slidably connected to the chute, and the right end of the workbench top A hydraulic cylinder is installed, the top of the slider is provided with a second frame, the first frame and the second frame are provided with a sleeve, the inside of the sleeve is provided with an internal thread, and the sleeve The barrel is threadedly connected with a screw rod, the top end of the screw rod is fixedly connected with a turntable, and the bottom end of the screw rod is fixedly connected with a pressing plate. Rotate the screw through the turntable, so that the pressing plate at the end of the screw can press the plate tightly to achieve a fixed effect, effectively prevent loosening during processing, and can adapt to the pressing of plates of different sizes.

The invention discloses a road guardrail automatic cleaning car, which comprises a car body and wheels. The road guardrail automatic cleaning car is characterized in that an ascending and descending platform is connected onto the car body through an ascending and descending machine and a guide post; the lower end of the outer side of the ascending and descending platform is provided with a platform side plate; in addition, the inner side surface of the platform side plate is provided with a water spraying head which communicates with a water tank arranged on the car body; a movable brush head movably sleeves the ascending and descending platform; a plurality of rotating hair brushes are arranged under the movable brush head; a rotating hair brush is arranged under the ascending and descending platform arranged at the opposite inner side of the platform side plate; a hydraulic cylinder is arranged on the ascending and descending platform; the upper side of the hydraulic cylinder is connected with a push plate arranged on the moving brush head through a push rod. The road guardrail automatic cleaning car has the advantages that road guard bars can be conveniently cleaned by sanitation men; water resources are saved; water beam sputtering is avoided; the automatic cleaning is realized; convenience, high efficiency and high practicability are realized.

The invention discloses an electric power overhaul lifting platform. The electric power overhaul lifting platform comprises a platform base and a lifting table arranged above the platform base. At least four pressure sensors are arranged on the lifting table at equal intervals. A control box is arranged on the platform base. A control circuit is arranged in the control box. The pressure sensors are connected with the control circuit through wires. According to the electric power overhaul lifting platform, four hydraulic cylinders are adopted to push a support to move in the direction of a diagonal line of the platform base, when the pressure sensors detect that the weight on the lifting table is not even, the supporting position can be adjusted by adjusting the position of the support, and therefore potential safety hazards caused by the unstable gravity center of the lifting table can be avoided.

A lubricating system for a heavy-duty material processing shears provides lubricant to one of more wear surfaces on one or more wear portions in the shears. The system includes a hydraulic lubricant pump that is actuated by the main hydraulic control system by means of which the jaws of the shears are opened and closed, and may include a sequential valve to distribute lubricant to various wear portions in sequential fashion. The lubricating system may lubricate one or more wear surfaces of the lateral blade stabilizers, primary and secondary blade(s) on the upper and/or lower jaws, pivotal connections between jaws and/or between the upper jaw and the hydraulic cylinder, a forward wear plate, or any other wear portion of the shears. The lubricating system may be retrofitted onto a conventional non-lubricated shears by replacing a conventional upper jaw with an upper jaw with lubricant conduits and a lubricating system.

The invention discloses an automobile processing part clamping device with the good fixing performance. The part clamping device comprises a mounting base. Fixed lug seats are welded to the two ends of the two sides of the mounting base. Fixing bolts are connected to the outer walls of the tops of the fixed lug seats through threads. Bearing blocks are connected to the outer walls of the two sidesof the top of the mounting base through bolts. A horizontal lead screw is rotatably connected to the inner walls of the two bearing blocks. A second sliding block is connected to the peripheral wallof the lead screw through threads. The outer wall of the top of the second sliding block is connected with a hydraulic cylinder through bolts. The outer wall of the top of the hydraulic cylinder is connected with a mounting block through bolts. The outer wall of one side of the mounting block is connected with a servo motor through bolts. According to the part clamping device, a stepping motor isstarted, two first sliding blocks are driven to move to the middle to clamp a part through a first thread and a second thread with the opposite thread directions on the lead screw; the first sliding blocks are provided with magnets so that the part can be clamped more stably.

The invention discloses an electric static liquid actuator for deep sea. An integrated-type integrated structure is adopted. The movement of a hydraulic cylinder is controlled by a two-way hydraulic pump. The forward and reverse of a motor is adjusted and controlled, and the displacement and accelerated speed of a piston rod of the hydraulic cylinder are controlled through speed regulation operation; and a hydraulic direction-changing valve, a reducing valve and other control valves are cancelled, and an arranged sensor monitors and adjusts the working condition of a system. A pressure compensator is arranged outside the system and used for compensating system pressure and adapting high pressure environment of the deep sea. A hydraulic circuit adopts a plate-type connection without external connection pipelines, only an interface for power supply and signal transmission is arranged on the exterior of the hydraulic circuit, the advantages of a hydraulic actuating system and an electricactuating system are both had, system composition is simplified greatly, and the equipment volume is greatly reduced. Therefore, the electric static liquid actuator for the deep sea has a wide application prospect in deep-sea operating equipment and shipping equipment.

The invention relates to a waste straw treatment device which comprises a feeding conveyor belt; a cutter frame is arranged on one side of the feeding conveyor belt and is provided with a plurality of cutting grooves; a cutting plate driven by a hydraulic cylinder is arranged above the cutter frame; cutters, corresponding to the upper sides of the grooves, are arranged under the cutting plate; a crushing box is arranged below the cutter frame; two spiral cutters driven by a motor to rotate are inserted into the crushing box; a discharge pipeline is arranged under the crushing box; a storage box is arranged under the discharge pipeline; a discharge hole is formed in the lower end of the storage box; a limiting plate is arranged on one side of the storage box; a [-shaped frame is arranged on the other side of the storage box; a baffle plate which slides through a cylinder is arranged, penetrating through the limiting plate; and a material barrel is arranged below the discharge hole. The waste straw treatment device can secondarily crush and utilize waste straws effectively and protects environment effectively.

The invention relates to experimental equipment for testing the durability of hydraulic cylinders, and belongs to the field of machinery manufacturing. The experimental equipment is characterized in that linear reciprocating driving units, lateral force applying units, a mud water spraying unit, hydraulic cylinder mounting longitudinal adjusting units and hydraulic cylinder mounting angle adjusting mechanisms are respectively fixed onto a body frame, and 40*40 square tubes are welded to form the body frame; the linear reciprocating driving units are connected with the hydraulic cylinder mounting longitudinal adjusting units by test pieces. The experimental equipment has the advantages that the experimental equipment is simple and novel in structure and high in automation degree and has abundant functions; real service conditions can be simulated, and accordingly the durability of the hydraulic cylinders can be tested; the durability of the hydraulic cylinders can be tested in schemes of four frequencies (of 2Hz, 3Hz, 6Hz and 10Hz), and motors of the linear reciprocating driving units can drive wide guide rails to reciprocate up and down at the four frequencies; the real service conditions include lateral force, mud water spraying, mounting angles and the like; the experimental equipment is high in reliability and practicality.

The invention discloses a straw crushing mixed feed preparation device, which comprises a storage bin, a conveyor belt, a brake device, a steering wheel, a support rod, a cross bar, a hydraulic cylinder, a No. 1 motor, a frame body, a No. 2 motor, and a discharge pipe , cut-off valve, stirring roller, feed hopper, crushing blade, stirring shaft, crushing cylinder, straw feeding hopper, partition, baffle and feed mixing box, the partition set on the conveyor belt can prevent the straw from slipping, and the baffle can Limit the movement of the straw to prevent the straw from slipping out. The conveyor belt conveys the straw to the top of the straw feeding hopper. The inclination angle of the conveyor belt is adjusted through the expansion and contraction of the piston rod of the hydraulic cylinder. The cross bar connects the support rod to the side of the cylinder of the hydraulic cylinder Connect to improve the stability of the conveyor belt, start the No. 2 motor to drive the stirring roller to stir, and fully mix the crushed straw and feed evenly, which is convenient for ruminants to eat.

The invention discloses a garbage bin lifting system for a sweeper, and belongs to the field of sweepers. The garbage bin lifting system comprises a main brush, a garbage bin, a conveying system and a lifting device, wherein garbage on a road surface is thrown in the conveying system by the main brush and is conveyed to the garbage bin by the conveying system; the lifting device comprises a first transverse column, a garbage bin mounting rack, an upright column, a hydraulic cylinder and a lifting rack; the upright column is perpendicularly fixed on the first transverse column of a base plate; one end of the lifting rack is hinged to the bottom of the upright column; and the other end of the lifting rack is hinged to a vertical rod of the garbage bin mounting rack. The garbage bin lifting system is subjected to transmission by connecting rods, the garbage bin is raised automatically by a multi-connecting-rod system and is not required to be loaded or unloaded manually, the time and the labor are saved, the garbage bin can be automatically or manually placed down, and the garbage bin can descend manually by locking a descending device; and a garbage bin supporting plate can rotate outwards at a certain angle, so that a worker can load or unload the garbage bin conveniently.

Disclosed is a machine tool cutting force simulation loading device so as to mainly solve the problems that prior machine tool cutting force simulation loading devices are complicated in structure, small in load and not suitable for experimenting on large high-speed numerically-controlled machine tools. The device is characterized in that the outside of a loading mandrel (4) is connected with a radial bearing sleeve (15) through rolling bearings B (18), a rotary element (16) is arranged on the outside of the radial bearing sleeve (15), a radial hydraulic cylinder (11) is arranged in a groove of the rotary element (16), a piston rod of the radial hydraulic cylinder (11) abuts against the outer surface of the radial bearing sleeve (15), and the rotary element (16) is connected with a servo motor (6) through a belt (8). An axial bearing sleeve (12) is arranged at the right end of the loading mandrel (4), and an axial hydraulic cylinder (13) is arranged in the axial bearing sleeve (12). The device has the advantages of being simple in structure, large in load range and applicable to machine tools of various types.

The invention discloses a rapeseed oil squeezing device capable of collecting rapeseed oil conveniently. The rapeseed oil squeezing device comprises a main body, a pumping plate, a flow guiding plateand a sliding rod. A hydraulic cylinder is arranged above the main body, a hydraulic rod is arranged below the hydraulic cylinder and penetrates through the main body, and a pressing plate is arrangedbelow the hydraulic rod. The pumping plate is arranged above the main body and clamped into a slideway, and meanwhile, the slideway is formed in the inner side wall of the main body. An open hole isformed in the surface of the bottom of the pumping plate, and a bottom plate is arranged above the bottom of the pumping plate and clamped into a groove. Meanwhile, the groove is formed in the surfaceof the bottom of the pumping plate, and a supporting plate is arranged above the bottom plate and connected with the bottom plate through a filter net. A movable plate is arranged in the middle of the supporting plate. According to the rapeseed oil squeezing device capable of collecting the rapeseed oil conveniently, the pressing plate and the open hole are formed, the hydraulic cylinder can drive the hydraulic rod and the pressing plate to ascend and descend, and the pressing plate can squeeze rapeseeds in the bottom plate and the supporting plate.

The invention discloses a drying device with high-efficiency paint spraying applied for a wooden door. The device comprises a box body, the two ends of one side of the interior of the box body are correspondingly and fixedly provided with first hydraulic cylinders, a mounting plate is fixedly arranged at the telescopic shaft ends of the two first hydraulic cylinders, the two ends of one sides, faraway from the first hydraulic cylinders, of the mounting plate are correspondingly and movably provided with a first fixing part and a second fixing part, and one side, close to the second fixing part, of the first fixing part is provided with a first motor through a mounting base; and a first mounting part is fixedly arranged at the output shaft end of the first motor, one side, close to the first fixing part, of the second fixing part is movably provided with a second mounting part through a bearing, one sides, away from the first fixing part and the second fixing part, of the first mounting part and the second mounting part are fixedly arranged with clamping mechanisms correspondingly, and sliding rails are fixedly arranged on the side walls of the two sides of interior of the box bodycorrespondingly. According to the device, the working efficiency is improved while the physical health of operators avoided is facilitated.

The invention relates to an automatic deviation rectifying device of a natural lustre finishing machine cloth supporting strip with a manual adjustment mechanism, which is symmetrically arranged on two sides of a cloth supporting strip. The automatic deviation rectifying device comprises a travel switch, a hydraulic cylinder, a slide block type bearing, a swing arm, a guide bar and a manual adjustment rod, wherein the hydraulic cylinder is fixed on the swing arm to push the slide block type bearing to move relatively to the swing arm; once the cloth supporting strip offsets, the travel switch gives out an order, the hydraulic cylinder works to automatically adjust the space and tensile force between a driving cloth supporting roller and a driven cloth supporting roller so as to automatically rectify deviation of the cloth supporting strip; and the manual adjustment rod is arranged on the outer side of the slide block type bearing to manually adjust the position of the driven cloth supporting roller. The invention has the advantages that the automatic deviation rectifying device can randomly monitor and automatically adjust space and parallelism between the driving cloth supporting roller and the driven cloth supporting roller at any time to automatically rectify deviation of the cloth supporting strip; in the automatic deviation rectifying process, the device does not need to stop, which does not affect production and obtains accurate signal collection, reliable performance and large automatic adjustment amplitude; the manual adjustment mechanism has simple and compact structure and convenient adjustment.

The invention discloses a phase friction welding machine and a welding method. The phase friction welding machine comprises a rotary device mounted on the inner side of one end of a fixed frame. A hydraulic cylinder is mounted on the outer side of the other end of the fixed frame. A fixing device mounted on the outer side of a movable frame is arranged at the axis position of the rotary device. Apressure sensor is mounted at the top end of a hydraulic cylinder telescopic rod and fixed to the inner side of the movable frame. The welding method of the phase friction welding machine comprises the following steps that a, two welded parts are fixed to corresponding chucks, and the effect that welding centers of the two parts coincide is ensured; b, relevant parameters are set, and a motor is accelerated when the two parts make contact with each other; c, when the displacement distance reaches a set value, the motor is decelerated and stopped; and d, welding is completed after an upsettingstage and pressure maintaining. The parts in irregular shapes can be welded, the positions of the welded parts are adjusted, the stability in the friction process is improved, friction pressure and upsetting force are provided through a hydraulic system, the force application position and the force bearing position are located on the same straight line, and the system stiffness requirement is lowered.

The invention discloses a disturbing force compensation method of a two-degree-of-freedom double electro-hydraulic vibrostand array simulation system. The two-degree-of-freedom double electro-hydraulic vibrostand array simulation system comprises a lower platform, a six-degree-of-freedom vibrostand, a two-degree-of-freedom vibrostand, a pier A, a pier B and a bridge board. According to the disturbing force compensation method disclosed by the invention, pressure difference signals of two chambers of hydraulic cylinders in 10 valve-controlled cylinder cylinders and acceleration signals of piston rods of the hydraulic cylinders are collected, and disturbing force compensation signals are obtained by calculation. Driving signals of the valve-controlled cylinder cylinders are adjusted by usingthe disturbing force compensation signals to achieve the purpose of improving the control precision of the array simulation system. By application of the disturbing force compensation method proposedby the invention, the fluctuation 6dB of amplitude-frequency characteristics of a closed-loop transfer function of a rolling degree-of-freedom position in the vicinity of 18 Hz can be reduced within2dB, and the fluctuation 16dB of the amplitude-frequency characteristics of the closed-loop transfer function of a pitching degree-of-freedom position in the vicinity of 35 Hz can be reduced within 4dB, and the control precision of the array simulation system is obviously improved.

The invention relates to a synchronous hydraulic transmission system, which consists of four modules, namely a water supply module, a control valve bank, a synchronous hydraulic cylinder group and a water-compensating exhaust module, wherein the water supply module supplies water to the system through a water pump; the control valve bank is a high-flow three-position four-way valve; the synchronous hydraulic cylinder group is formed by connecting a sucker rod cavity of a large hydraulic cylinder and a rodless cavity of a small hydraulic cylinder in series through an intermediate communicating pipeline; and the intermediate communicating pipeline is connected with a pipeline and the water-compensating exhaust module respectively. Adopting tap water as a hydraulic transmission medium, the synchronous hydraulic transmission system has the advantages of energy conservation, environmental protection and accurate positioning, prevents hydraulic oil from polluting water quality, meets the requirements of special application occasions, and can be applied in engineering environment of subaqueous elevating stages, the start and stop of water conservancy gates, shipping machines, mining machines and the like.

The invention provides an online alternating-current flow proportion regulation control device and belongs to the technical field of alternating-current hydraulics. The control device is characterized by comprising a crank, a slider, a connecting rod, a lever, a ball screw, a ball nut, a servo motor, a hydraulic cylinder and the like. The crank in a crank-connecting rod mechanism drives the slider to move through the connecting rod according to the sine rule, and sine rule change is transmitted to a piston of the hydraulic cylinder after being magnified/shrunk by certain times by a lever system composed of the lever, a lever bearing and the like. The piston enables the output end of the hydraulic cylinder to accurately output set alternating-current flow according to the sine rule change magnified/shrunk by certain times, so that real-time dynamic on-line accurate linear proportion regulation of the alternating-current flow is realized. The control device has the advantages that the device is smart in structure, reasonable in layout and high in measurement accuracy, the problem that the alternating-current flow cannot be regulated proportionally online with high precision by traditional crank length changing methods and the like is solved, and good promotional value is obtained.

Automatic overturning equipment comprises a hydraulic cylinder a, a motor a, a rotary disk, a motor b, a hydraulic cylinder b, a push arm a, an overturning platform, a push arm b, a hydraulic cylinder c, a push arm c, a conveyor belt and a baffle, wherein the hydraulic cylinder a is arranged on the motor a; the push arm a is connected with the hydraulic cylinder a; the overturning platform is connected with the motor a; the disk surface of the rotary disk and the axis of the motor a are located in the same horizontal plane; the rotary disk is arranged on the motor b; the hydraulic cylinder b is connected with the push arm b and arranged above the rotary disk; the hydraulic cylinder b, the rotary disk and the overturning platform are located in the small vertical plane; the hydraulic cylinder c is connected with the push arm c; the conveyor belt is arranged under the hydraulic cylinder c; the baffle is parallel to the conveyor belt and is arranged above the conveyor belt. The automatic overturning equipment can conduct safe, stable and effective technological conveying and achieve the operation goal of changing goods from a horizontal state to a vertical state or from the vertical state to the horizontal state.

The invention belongs to the technical field of tunnel kilns, and particularly relates to a double-cylinder kiln car pusher which can be used for a tunnel kiln. A kiln car can continuously run by the aid of the double-cylinder kiln car pusher. The double-cylinder kiln car pusher comprises a kiln car pusher body device, two hydraulic cylinders and two car pushing traveling devices, wherein the kiln car pusher body device comprises a cylinder front transverse fixing plate, a cylinder rear transverse fixing plate, two cylinder traveling tracks and a cylinder traveling double-track combination, the two hydraulic cylinders comprise a left cylinder, a right cylinder and two piston rods, and the two car pushing traveling devices comprise cylinder pushing running fixing frames, shaft sleeves, pulleys, props, a fourth positioning switch, a third positioning switch, a first positioning switch and a second positioning switch. The double-cylinder kiln car pusher has the advantages that the kiln car can continuously run, burnt products are assuredly uniformly heated in a high-temperature zone, and the quality of the products is stable.

The invention discloses an electromagnetic crawler automatic adsorption robot, which comprises a first body fixing frame, a second body fixing frame, a first caterpillar hydraulic cylinder and a second caterpillar hydraulic cylinder rotatably mounted on the first body fixing frame; At that same time,install the robot is installed on the crawler frame; A brush guide rail is fixed on the brush guiderail support, and a brush is arranged on the brush guide rail; A loop of electromagnet is fixedly arrange on that caterpillar, an electromagnet brush is arranged on the electromagnet, and the electromagnet brush can slide on the brush of the brush guide rail; The invention utilizes the electric brush and the electromagnet brush on the electromagnet to ensure that the crawler belt is adsorbed on the plane and at the same time does not affect the free walking of the robot. The angle of the first body mount and the second body mount is varied by rotating the hydraulic cylinder with the mount toaccommodate the planes of different angles.

The invention provides an automatic trimming machine for flower type lawn trimming. The automatic trimming machine comprises a vehicle body, crawler wheels, a crawler belt, a first servo hydraulic cylinder, a second servo hydraulic cylinder, a machine base, a first servo motor, a motor base A, a second servo motor, a motor base B, a bearing seat, a lead screw, a rectangular guide rail, a crank, a sliding sleeve, a rotating shaft, a nut sliding base, a connecting rod, a direct-current motor, a motor base C, a cutter rod and cutter blades. The cutter rod and the cutter blades can be controlled to perform circular motions by controlling the first servo motor to rotate, the cutter rod and the cutter blades can be controlled to perform continuous different-diameter circular motions when the second servo motor is started to control the nut sliding base to move, vertical motions of the cutter rod and the cutter blades can be controlled by controlling the first servo hydraulic cylinder and the second servo hydraulic cylinder, and accordingly spatial accurate motions of the cutter rod and the cutter blades are achieved. The automatic trimming machine has the advantages of smoothly walking on a lawn, conducting various flower types accurate trimming on the lawn, saving energy and labor and effectively improving the appearance of the trimmed lawn.

The invention provides a loading system for a vertical material size reduction system including a pressure frame configured and adapted to be attached to at least one roller wheel assembly of the vertical material size reduction system. The loading system also includes at least one hydraulic cylinder operably connected to the pressure frame. The hydraulic cylinder is configured and adapted to apply a force to the pressure frame to apply pressure through the at least one roller wheel assembly to a grinding table of the vertical material size reduction system. The invention also provides a kit and a method for retrofitting a vertical material size reduction system accordingly.