35results about "Portable lifting" patented technology

In a worm wheel (41) and a method of manufacturing the same, the worm wheel has a metal worm wheel element (51) in which an axial bore (55) is formed at a rotational center and a synthetic resin gear ring (53) attached on the outer circumference of the worm wheel element, and a centering guide portion (77) that is coaxial with the axial bore (55) is formed on one surface of the metal worm wheel element (51).

A drive device includes a drive source; a rotatable member gear, fixed on a rotation shaft of a rotatable member, for being rotated by transmitting thereto a driving force from the driving source; a follower gear, including a pair of gears which are coaxially disposed with each other and are rotatable at the same rotational speed by rotation of the rotatable member gear and including an urging device for urging the pair of gears in rotational directions opposite from each other, for being rotated at the rotational speed higher than that of the rotatable member gear; a rotation detecting device, including a single flag rotatable together with the follower gear and including a detecting portion for detecting passing of the flag, for detecting rotation of the follower gear; a computing portion for computing rotation fluctuation of the rotatable member gear from a signal of the detecting portion; a storing portion for storing a computation result of the computing portion; and a driving source control portion for controlling said driving source on the basis of the computation result stored in the storing portion.

A self-alignment spacer for a ball screw device is disposed between respective balls of a ball screw device and comprises: at least a stuffing having a specific gravity different from that of the spacer, a center of gravity of the spacer being eccentrically positioned, so that, in operation, the spacer between the respective balls will be able to rotate in response to an acceleration force thereof.

A super abrasion-proof nylon block and the manufacturing method relates to the high molecular material-nylon 6 and the manufacturing method of the material. The technical scheme is that the proportion by weight of aminocaprolactam, accelerant and curative is 1000:1. 2-1. 6:3-4. The invention is characterized in that 1, small density and inertia, light quantity and stable operation, 2, superior mechanic property, high intensity and rigidity, good tenacity and creep resistance, antihunt with high shape stability and completely exchangeable with cast-steel block, 3, abrasion-proof function with good self-lubricating property, 4, grease-proof and corrosion-proof without rustiness, 5, good cushioning capacity without noise.

The invention discloses a nickel alloy automobile starting motor planetary gear and a manufacturing method thereof. The nickel alloy automobile starting motor planetary gear is prepared from, by mass, 91-94% of diffusion alloy powder, 0.5-0.8% of C element powder, 0.5-0.9% of a paraffin lubricant and 4.3-8.0% of superfine nickel powder. According to the technical scheme, direct sintering and hardening of a high-nickel alloy powder metallurgy material are adopted, and the defects that in the prior art, after a planetary gear is sintered, deformation is caused through thermal treatment, the product precision cannot meet the requirement and a starting motor is high in noise and does not resist to abrasion are overcome successfully; due to the fact that no thermal treatment is needed, the gear precision is improved, a high energy consumption procedure is omitted, the cost is lowered, the product batch consistency is ensured, and batch production is easy to achieve.

The invention discloses a universal-regulation lifting device for clamping and lifting precision equipment or a cylinder. The lifting device comprises a gantry frame and a climbing mechanism matched with the gantry frame. A rotating platform is fixedly connected to the top end of the climbing mechanism. An attitude adjustment mechanism is installed at the top end of the rotating platform. A clamping mechanism is fixedly connected to the top end of the attitude adjustment mechanism. The lifting device can effectively absorb impact caused by sudden starting and sudden stopping of a common lifter in the lifting process, is especially applicable to lifting and transferring of the precision equipment or a precision instrument, will not damage the equipment or the instrument and has the advantages of being small in size and light in weight; besides, the lifting device is convenient to carry and will not occupy much space, thereby being especially applicable to the lifting requirement in a narrow space.

The invention relates to a mechanical transmission rotating wheel, in particular to a wheel tooth length-adjustable mechanical transmission rotating wheel. The wheel tooth length-adjustable mechanicaltransmission rotating wheel comprises an outer adjusting ring and an inner rotating wheel main body; the outer adjusting ring is arranged at the external of the inner rotating wheel main body; extension wheel teeth are mounted on the outer adjusting ring in an annular array mode; and the extension wheel teeth are adjusted, limited and fixed through fixed pins. The lengths of the extension wheel teeth in the outer adjusting ring can be adjusted and limited through the fixed pins, so that the extension lengths of the extension wheel teeth are adjusted, the transmission effect is guaranteed, andthe slippage phenomenon caused by long-time transmission wear is prevented; and two fixed pins are provided to improve the limiting stability of the extension wheel teeth, so that the slippage phenomenon easily caused by long-time transmission wear of the wheel teeth with chains or other wheel teeth in a large transmission rotating wheel applying some transmission belts and mechanical conveying equipment in the material conveying field is solved.

An opposed-piston engine includes a backlash reducing gear with at least a first and second gear that move relative to each other because of a hydraulic pressure applied within the gear. A backlash control system that includes the backlash reducing gear can dynamically adjust backlash between at least two gears in the gear train of the engine during operation of the engine instead of setting backlash prior to operation of the engine. A method for adjusting backlash in a two-stroke-cycle, opposed-piston engine with a backlash reducing gear includes providing hydraulic fluid, such as oil, to thegear, and allowing the backlash reducing gear to adapt to changes in the engine that include temperature changes, torque reversals, changes in load and the like. The backlash reducing gear adapts tochanges in the engine by controlled leaking and intake of oil.

The invention provides a closed type heavy-load thin wall light-duty pulley device and belongs to the technical field of heavy industrial machinery. The device comprises an end cover, a wheel hub, two webs and a rope groove which are annular and are connected in sequence from inside to outside, and further comprises a shaft which is arranged inside an inner ring of the end cover, a bearing for supporting the shaft and an inner ring supporting sleeve for positioning the bearing. The two webs are located at the positions on the two side faces of the pulley device and are at the same radial position of the pulley device. The wheel hub and the end cover are fixed by a stainless steel wire rope; an outer ring of the end cover is connected with the wheel hub; a gap being not more than 0.1mm is formed between the inner ring of the end cover and the inner ring supporting sleeve. An inner cavity composed of the wheel hub, the end cover, the inner ring supporting sleeve and the shaft is fully filled with lubricating grease to form a closed structure. The closed type heavy-load thin wall light-duty pulley device is free of maintenance; the lubricating grease can be fully filled in one time and does not need to be replaced within 4-5 years; meanwhile, the pulley device which has lighter self weight, greater load and smaller wall thickness is effectively realized and the service life of the pulley device is greatly prolonged.

A wave gear device is proposed having an anti-ratcheting mechanism having a simple configuration, wherein a center through-hole is formed in a cylinder hub of a wave generator, a small-diameter shaft end portion of a rotating input shaft is concentrically inserted in the center through-hole, and the two members are fastened by a fastening bolt, and a friction ring is concentrically sandwiched between the small-diameter shaft end portion and the cylinder hub and pressed in the radial direction with a prescribed force, whereby when transmission torque from the rotating input shaft to the wave generator 4 becomes excessive, slippage occurs in the rotational direction between the two members, transmission torque is limited, ratcheting generated between the two gears can be prevented.

The invention belongs to a lifting machine, and particularly relates to a multifunctional sunlight room installation lifting machine. The multifunctional sunlight room installation lifting machine comprises a bottom frame, a lifting motor and a first output steel rope; the bottom frame comprises four square pipes which are connected end to end, lengthened supporting rods sleeve the end of the square pipe, universal wheels are arranged at the bottoms of the square pipes and the lengthened supporting rods, fastening screws are arranged at the ends of the square pipes, a stand column installing platform is arranged between the two opposite square pipes, the stand columns are arranged on the stand column installing platform, telescopic rods are arranged on the stand columns, fixed pulleys arefixedly arranged on the telescopic rods, the lifting motor is arranged on the bottom frame, and the first output steel rope of the lifting motor is arranged around the fixed pulley. According to the lifting machine, the weight is large, the stability is good, the application range is wide, and the assembly is convenient and flexible.

The invention relates to the field of electrically operated gates, in particular to a belt pulley assembly of an electrically operated gate. The belt pulley assembly comprises a rim, a hub and a spoke, and is characterized in that the hub and the spoke are respectively provided with a gear, the hub and the spoke are integrally formed by the powder metallurgy process, and the rim is connected with the spoke through a screw. The belt pulley assembly is free of sand holes inside and accurate in transmission and is nonslip during operation.

The invention relates to a soldering pot part, in particular to a wave generator pulley on a soldering pot. The pulley has an inner wheel made of graphite and an outer wheel which is made of the metal material and used for encapsulating the inner wheel hub; the outer wheel is provided with a leather belt groove matching with a leather belt; the outer diameter D of the inner wheel is 5-10mm, the width S of the outer wheel is 0.5-1mm, and the thicknesses A of the inner and the outer wheels are 0.5-2mm. With simple structure, the invention excellently overcomes the defects of easy oxidation and power wear resistance of the prior metal pulley, lowers the costs of production and maintenance, and guarantees the long-time normal operation of the pulley.

The invention provides a groove wheel mechanism and a mechanical fan with the same. The groove wheel mechanism comprises a groove wheel assembly and a connecting part, wherein the groove wheel assembly comprises a groove wheel body; the groove wheel body is rotationally connected to the connecting part; and the connecting part is used for mounting the groove wheel assembly on a preset structure. In the groove wheel mechanism and the mechanical fan with the same, the mounting position of the groove wheel mechanism on a fan bracket can be determined according to the position of a radiator without moving a water pump; the design difficulty of the mechanical fan is simplified; the mounting process is flexible and convenient; the requirement for the fan bracket is low; the production cost is low; the structure is simple; and the generality is high.

The invention belongs to the technical field of accessories of rotary cultivators, and particularly relates to an angular gear. The angular gear solves the technical problems that the design is not reasonable enough in the prior art. The angular gear comprises a gear body, wherein a plurality of oblique teeth are circumferentially and uniformly distributed on the gear body, and a center hole is formed in an axial center of the gear body. The angular gear is characterized in that the gear body is made of plastic; a plurality of through holes positioned between the oblique teeth and the center hole and distributed circumferentially and uniformly are formed in the gear body; an annular groove is formed in one end face of the gear body; the through holes are communicated with the annular groove; and the width and the depth of the annular groove are 3-7mm. Compared with the prior art, the angular gear has the advantages that the angular gear is more reasonable in design, light in weight and simple in structure, can meet an operation requirement, and corresponds with a trend of technology development in the current society.

A component includes a metallic substrate having a tribological surface and a coating. The coating includes a first layer disposed on the tribological surface and a second layer disposed on the first layer. The first layer includes titanium, chromium, or a diamond-like carbon (DLC). The second layer includes a disulfide.

The invention discloses an automatic equipment feeding intelligent control system, and belongs to the technical field of automatic equipment. The automatic equipment feeding intelligent control system comprises a U-shaped frame; the top of the U-shaped frame is connected with a motor base; the inner wall of the motor base is connected with a driving motor; the output end of the driving motor is connected with a rotating shaft; the outer wall of the rotating shaft is sleeved with a take-up roller; the outer wall of the take-up roller is connected with a rope; the end, away from the take-up roller, of the rope is connected with a bottom plate; a through hole is drilled in the outer wall of the bottom plate; the outer wall of the bottom plate is connected with a sleeve; the sleeve is arranged on the lower side of the through hole; a straight rod is movably connected into the sleeve; the top of the straight rod is connected with a support plate; and the outer wall of the straight rod is sleeved with a first elastic element. A plate is placed on the support plate, the support plate is stressed to move downwards, a rack plate and a driven gear are meshed with each other, and the upper side of the plate is clamped and positioned by the clamping plate, so that the plate fixing time is saved, rapid fixing of the plate is achieved, and then the plate feeding efficiency is improved.

The invention relates to the building field of assembled construction, in particular to a transportation and installation bracket for an assembled construction component. The bracket comprises a bracket body which is characterized by comprising an outer frame and an inner frame, wherein the outer frame comprises a central cross beam I and side brackets, the side brackets are separately arranged attwo ends of the central cross beam I, a mobile trolley base I is arranged at the lower end of each side bracket, the inner frame comprises a central cross beam II, an end retractable bracket is arranged at one end of the central cross beam II, an end support is arranged at the other end of the central cross beam II, a mobile trolley base II is arranged at the lower end of the end support, and a pulley block is arranged between the central cross beam I and the central cross beam II. An electric winch is arranged on the central cross beam II. The occupied time of a tower crane in a component mounting process is shortened, and the utilization ratio of the tower crane is improved.

The invention relates to a portable door-shaped combined crane boom, and belongs to the technical field of electric power lifting device structures. The portable door-shaped combined crane boom comprises two lifting vertical stand columns, a detachable horizontal transverse beam is erected on the tops of the vertical stand columns, and holding devices used for holding the horizontal transverse beam are arranged on the tops of the vertical stand columns; and a lifting device for driving electrical equipment to be lifted is installed on the horizontal transverse beam, limiting devices for achieving the limiting effect are further arranged on the two sides of the lifting device, and supporting devices used for improving the stability are arranged below the vertical stand columns. The portable door-shaped combined crane boom is ingenious in structural design, detachable, convenient to use and good in carrying effect.

In daily life and work of people, weights are often need to be lifted from low to high (or put down from high to low), for example, loading and unloading are carried out, bricks are carried by construction workers, and the like; and most of the operations need people to lift and carry with hands and shoulders, wast time and energy and have unsafe factors at any time. In order to solve the problems, a pulley, a bracket, a cable, a rolling wheel and other accessories are combined, wherein the bracket is of a foldable (or retractable) structure, so that during hoisting work, the bracket can be conveniently unfolded, self-fixed and simply lift (or put down) the weights; and when the hoisting work is finished, a box (vehicle) of the box shape can be conveniently folded or retracted, so that carrying and moving are convenient. The device is a labor-saving machine, and can improve the work efficiency and improve the operation safety. In the specification, the specific mode of execution of thedevice is applied to the process of transferring bricks to an operating frame at a construction site, the device with the proper size is designed in a drawing, and if the device is applied, the working efficiency can be greatly improved, the labor intensity can be reduced, and the personal safety can be improved.

The invention discloses a train shaft end generator. The generator includes a generator assembly, the generator assembly is fixed to a bogie, two gears are fixedly arranged on a wheel shaft and a rotor shaft of the generator assembly respectively, the gears are connected through a chain, bosses are fixedly arranged at the ends, facing a rotating direction, of tooth parts on the gears, and first rubber layers are fixedly arranged on two sides of the tooth parts. The chain includes an outer chain plate and an inner chain plate which are successively connected end to end, the outer chain plate and the inner chain plate are connected through a hinge pin, a shaft sleeve is located on the outer side of the hinge pin in a movable adjustment mode, a clamping groove is formed in a shaft sleeve, theclamping groove is matched with the bosses in an inserted mode, inserted grooves are formed in the inner side of the inner chain plate, two ends of a shrapnel are connected with the inserted grooveswhich are in symmetry in an inserted mode, a flange is arranged on a central part of the shrapnel, and the flange is located in the clamping groove. According to the generator, a deficiency in the prior art can be improved, and the operating stability of a transmission mechanism can be improved.

The present invention discloses a reduction box gear for a single-phase capacitance running motor, in particular to the reduction box gear for the single-phase capacitance running motor on a low voltage circuit breaker. The present invention consists of a gear main body, and has the structural characteristic that the addendum circle of the gear main body and meshing surfaces at the both sides are the streamline shape transition, wherein the streamline shape transition is formed through processing by thinning 0.01 m to 0.015 m thickness from the addendum circle to 0.4 m to 0.5 m of the dedendum direction along the meshing surfaces at the both sides. The reduction box gear for the single-phase capacitance running motor is adopted to greatly reduce the mechanical noise.