16 results about "Thrust bearing" patented technology

The invention provides a grinding filter component. The component comprises a grinding cylinder, a push rod, a grinding disc and a grinding plate, wherein the grinding plate is provided with a plurality of filter holes; the grinding disc is connected with the push rod; the grinding cylinder is provided with a feed inlet; a plurality of grinding pillars are distributed on the grinding disc; the grinding pillars extend out of the front end surface of the grinding disc. The component is reasonable in structure, full in grinding and high in efficiency. The invention further provides a bone slurry machine. The bone slurry machine comprises the grinding filter component, a double-output shaft motor, a squeezing component and a rotating component, wherein the squeezing component comprises an oil pump and an oil cylinder; a first output shaft of the double-output shaft motor is connected with the oil pump; a piston rod of the oil cylinder is connected with a press rod; a drive box is arranged on the front side of the press rod; the press rod extends into a cavity of the drive box and is connected with a contacting block; a ball thrust bearing is arranged inside the cavity of the drive box; the rotating component comprises a turbine and a turbine rod sleeve; the turbine is mounted on the push rod; the turbine rod sleeve is matched with a second output shaft; a fixed block is arranged on the second output shaft. The bone slurry machine has a broad application range, and can be used for grinding rigid grinding materials.

A press-fit thrust bearing system and apparatus. A press-fit thrust bearing for an electric submersible pump includes a protruding band extending around a midsection of a bushing, the protruding band extending inward towards a drive shaft, outward towards a diffuser, or both. When extending outwardly, the band is press-fit into the diffuser to prevent dislodgment of the bushing. A non-rotating guide sleeve extends around the bushing above the protruding band, the guide sleeve interlocking with the protruding band to prevent rotation of the bushing. The guide sleeve includes a projection, the protruding band has a channel and the projection mates with the channel to form the interlock. A pair of flanged, rotatable bearing sleeves extend inwards of the single bushing and are keyed to the drive shaft. The top and bottom faces of the bushing serve as thrust handling surfaces.

The invention discloses an electric air compressor with a motor rotor cooling system. The electric air compressor comprises an impeller, an impeller back plate cover plate, a thrust bearing, a bearingcover and a motor which are sequentially arranged in the axial direction, an impeller air inlet hole is formed in the impeller, a back plate cover plate cooling hole is formed in the impeller back plate cover plate, a thrust bearing cooling hole and a bearing cover cooling hole are formed in the thrust bearing and the bearing cover respectively, air passes through holes in the impeller, the impeller back plate cover plate, the bearing and the bearing cover to reach between the motor rotor and a motor stator, and finally is discharged from a motor rear end cover. The electric air compressor effectively cools the motor rotor and does not need to be provided with an additional cooling device, so that the manufacturing cost and the use cost are reduced, and the assembly space is saved.

The invention relates to a bird repelling device for a farm. The bird repelling device includes a dynamic inductor, a base and a supporting barrel disposed on the base. The bottom of the inner wall ofthe supporting barrel is provided with an internal thread, the bottom of a rotating shaft is provided with an external thread and connected with the internal thread of the supporting barrel, the topof the rotating shaft is coaxially fixedly connected with a fixed disc, a plurality of band bodies are equidistantly arranged on the side edge of the fixed disc in the circumferential direction, a shaft rod of the rotating shaft is sleeved with a first driven wheel and a thrust bearing up and down respectively, an inner ring body of the thrust bearing is fixedly connected with the shaft rod of therotating shaft, an outer ring body is connected with a machine base, the bottom of the machine base is connected with the base through a telescopic rod, the machine base is provided with a first motor, and the output end of the first motor is in belt transmission connection with the first driven wheel through a first driving wheel. The dynamic inductor is disposed on the fixed disc and is in transmission connection with a second belt transmission device. The bird repelling device is simple in structure, birds can be effectively sensed, and corresponding action is performed to quickly repel the birds drawing close, thereby preventing crops from being pecked by the birds and reducing economic loss of the farm.

The invention relates to a semi-floating combined thrust bearing assembly and an assembling method thereof. The semi-floating combined thrust bearing assembly comprises a turbine shaft assembly, a middle body, a thrust spacer block, a limiting pin, front semi-floating thrust bearings and rear semi-floating thrust bearings, wherein the front semi-floating thrust bearings and the rear semi-floatingthrust bearings are arranged in pairs, are the same in structure and comprise hollow circular truncated cone sections and straight cylinder sections which are integrally arranged, the front semi-floating thrust bearings and the rear semi-floating thrust bearings are arranged through matching between the circular truncated cone sections and the straight cylinder sections, horn mouths are arranged in the middle body, a limiting frustum is arranged on a turbine shaft, and the thrust spacer block is provided with a circular truncated cone-shaped limiting section, so that the front semi-floating thrust bearings and the rear semi-floating thrust bearings are directly limited in the axial direction, and are prevented from shifting in the axial direction.

The present invention provides an explosion-proof hydraulic wet drill for well jot. It consists of a casing, a motor a bit chuck and a thrust system, and it has also hydraulic regulating system, hydraulic source to drive the motor, liquid spraying port at the position of bit, liquid inlet cavity and liquid outlet cavity beside the motor, pin key set between the main shaft and the motor shaft, thrust bearing, radial bearing and sealing block for the main shaft, liquid sparying pipe with one end communicated with the liquid outlet cavity and the other end communicated with the liquid inlet cavity and bit chuck. The hydraulic wet drill is explosion-proof and dust drcreasing and has a power one time higher than available coal drill.

A magnetically driven pipeline centrifugal pump, comprising a pump body, a pump cover, a pump shaft, an inner magnetic rotor assembly, an outer magnetic rotor assembly, and a motor, an outer magnetic rotor assembly is arranged above the inner magnetic rotor assembly, and the inner magnetic rotor assembly is arranged above the inner magnetic rotor assembly. A spacer sleeve is arranged between the magnetic rotor assembly and the outer magnetic rotor assembly, and the spacer sleeve is set on the outside of the inner magnetic rotor assembly and connected with the pump cover; the outer magnetic rotor assembly is arranged on the shaft head of the motor; the A sliding bearing body assembly is arranged below the inner magnetic rotor assembly through the thrust bearing assembly B, and the protrusion of the sliding bearing body assembly is connected and fixed to the pump cover. The invention is compact and reasonable, easy to install and maintain, and the installation method can be changed arbitrarily within 360° (vertical, horizontal, inclined at any angle) according to user requirements. The operation of the pump is stable and reliable, the service life is longer and the application range is wider.

This application discloses a cantilever crane with a lifting trolley, a reverse roller trolley and a safety hook, which includes two end girders and two main girders to form a double-girder bridge structure; A hoisting trolley and a running trolley are connected to the rail above the beam; both ends of the end beam are equipped with a cart driving device with wheel rims and gear teeth and an anti-tipping device; steel rails are set on the outside of the main beam; both sides of the running trolley are connected The anti-roller device, the anti-roller device hooks up and runs on the rail; the two active wheel groups on the running trolley are independently driven; the running trolley is equipped with a rotating mechanism; the thrust bearing in the rotating mechanism is connected to the upper part of the bearing seat; The lower part of the boom shaft is connected to the cantilever member, and the upper part is connected to the current collector slip ring; the electric hoist is installed on the cantilever member; the cantilever beam is placed under the main beam and can be extended outside the workshop, and can rotate at any angle on the horizontal plane.

A main transmission clutch of a non-tillage precise sowing machine comprises a bogie arm clamp assembly, a hydraulic oil cylinder system and a clutch connection rod assembly. The bogie arm clamp assembly is fixedly arranged on a bogie arm. A separation claw type clutch transmission part is arranged in the bogie arm clamp assembly. The two ends of a gearbox upper shaft are fixedly connected to bogie arm clamps through bearings correspondingly. The separation claw type clutch transmission part comprises a transmission chain wheel and a clutch claw shaft. The transmission chain wheel is installedon the gearbox upper shaft. The clutch claw shaft is matched with a sliding sleeve through a third bearing, a spring and a thrust bearing in sequence. A land wheel assembly is connected with the bogie arm through a land wheel shaft bearing pedestal. The gearbox upper shaft, the separation claw shaft, a fixed base and the sliding sleeve are each provided with protrusions, wherein the protrusions are engaged with one another. The main transmission clutch is easy to operate and does not need to be stopped, a land wheel can rise and fall at any time through the hydraulic oil cylinder system, andseparation and combination of power transmission is achieved while the land wheel rises and falls.

The invention relates to a servo mechanical transmission special for a top drive drilling machine. The servo mechanical transmission is characterized in that the front end of a main engine body is connected with a lifting ring; a drive motor, a speed change train, a first-stage speed reduction train and a second-stage speed reduction train are arranged inside the main engine body, and the speed change train, the first-stage speed reduction train and the second-stage speed reduction train are installed on a motor shaft; one end of the drive motor is connected with a cooling system; the rear end of the motor shaft is connected with a power output shaft of the drilling machine, the power output shaft of the drilling machine is provided with a sleeve joint train, the sleeve joint train is provided with a flange plate, and a drill stem connection train is arranged at the tail end of the power output shaft of the drilling machine; the motor shaft of the drive motor is provided with a thrust bearing, a spring, an inner sleeve left bearing, an inner sleeve right bearing, and an inner sleeve and a first middle plate of a first ring gear sequentially from left to right, a first middle plate bearing is arranged between the first middle plate and the motor shaft, and a first middle wheel is arranged on the portion, on the right side of the inner sleeve, of the motor shaft. The servo mechanical transmission has the advantages that top drive suspension is balanced, so that balance weights are not needed; the size is reduced relatively, so that the weight is lowered relatively.

The invention provides a pneumatic motor with a pressure-feed air bearing. By optimizing the traditional pneumatic coating motor with an air bearing, the stiffness of an air film is improved, and a rotating shaft rotates more stably and can withstand higher rotation speed. The pneumatic motor with the air bearing comprises a main body, the rotating shaft, the radial air bearing, thrust bearings, an impeller, a contour ring and a power ring. According to the pneumatic motor, through the overall improvement on the radial air bearing, the air supply layout is more reasonable and thus the stiffness of the air film is improved; and by improving the power ring, the power ring has strong anti-interference performance, and the rotating shaft rotates more stably and can withstand higher rotation speed.

A device capable of enabling a rotary-extrusion type brake cylinder to rotate for lubrication belongs to the technical field of rail wagon braking devices, and relates to an improvement for a structure in the prior art. According to both schemes I and II, a thrust bearing is required to be mounted at the contact position of the front end surface of a piston and a release spring. According to the scheme I, a chassis is fixedly mounted at the bottom of a brake cylinder, an arc track is mounted on the inner surface of the chassis, an elastic rod is mounted in the arc track, and the top end of the elastic rod is propped against a stepped groove formed in a bottom end surface of a piston. According to the scheme II, a gear ring base is mounted at the bottom of a brake cylinder, a stepped groove is formed in the inner surface of the gear ring base, a spring piece is mounted on the bottom end surface of a piston, and the top end of the spring piece is propped against the stepped groove in the end surface of the gear ring base. The two schemes has the common points that the piston is driven to rotate by virtue of the elastic rod or the spring piece during return stroke of the piston, so that uniform lubrication of a felt can be realized and accidents of dry friction and brake failure can be avoided.