CN113618569A

CN113618569A - Bearing bush grinding device

Info

Publication number: CN113618569A
Application number: CN202111193652.8A
Authority: CN
Inventors: 缪建峰
Original assignee: Nantong Jingda Marine Bearing Bush Co ltd
Current assignee: Nantong Jingda Marine Bearing Bush Co ltd
Priority date: 2021-10-13
Filing date: 2021-10-13
Publication date: 2021-11-09
Anticipated expiration: 2041-10-13
Also published as: CN113618569B

Abstract

The invention discloses a bearing bush polishing device which comprises a base, a polishing motor and a polishing disc, wherein a processing mechanism and an adjusting mechanism are arranged on the base; the processing agency is including seting up the concave groove in the base, concave groove inner wall runs through to rotate and is connected with first pole, first pole coaxial fixation has sector gear, concave groove inner wall sliding connection has toroidal gear, toroidal gear and sector gear meshing, three spout has been seted up to toroidal gear roof equipartition, base roof equipartition is fixed with three support column, every equal sliding connection has rack I in the support column, rack I diapire is fixed with the slide bar, the one end fixedly connected with clamp splice of slide bar. In the invention, the plurality of fixing blocks on each clamping block can be abutted against the uneven side surface of the bearing bush, and the fixing of the plurality of fixing blocks on the bearing bush is ensured to be firm through the transformation of the state of the electro-rheological fluid, and the bearing bush cannot shake due to external force in the processing process.

Description

Bearing bush grinding device

Technical Field

The invention relates to the technical field of bearing bush machining devices, in particular to a bearing bush polishing machining device.

Background

The bearing bush has an integral type and a split type, the integral type bearing bush is generally called as a shaft sleeve, the integral type bearing bush has an oil groove or no oil groove, and the integral type bearing bush has an oil groove or an oil groove, and the bearing bush and a shaft neck are in clearance fit and do not rotate along with a shaft generally.

Through search, patent with application number CN 201811266102.2: the utility model provides a grinding device is used in processing of motor axle bush, drives the lead screw clockwise rotation through operation adjusting hand wheel, and then drives two clamp splices and carry out the centre gripping to the work piece of base upper surface fixed to drive the elevator at smooth intracavity downstream through the high accommodate motor drive, and then drive the high-speed rotatory emery wheel of polishing and polish the processing to the work piece of fixing on the base, but also have some not enoughly: because the outer side wall of the integral bearing bush is often an uneven surface, in the process of clamping the bearing bush through the clamping blocks, line contact clamping or small-area surface contact clamping can be performed, and in the invention, two clamping blocks are used for clamping from two sides of the bearing bush, so that the clamping and fixing effect is poor, and the bearing bush is easy to move under the influence of external force in the processing process; the clamping mode is difficult to be suitable for bearing bushes with different diameters, and the application range is small; the waste smoke generated in the processing and polishing process is not treated in time, and the generated waste smoke has certain harm to human bodies and the environment.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a bearing bush grinding device.

In order to achieve the purpose, the invention adopts the following technical scheme:

a bearing bush polishing device comprises a base, a polishing motor and a polishing disc, wherein a processing mechanism for polishing a bearing bush and an adjusting mechanism for vertically driving the polishing motor are arranged on the base;

the processing mechanism comprises a concave groove arranged in a base, the inner wall of the concave groove is connected with a first rod in a penetrating and rotating mode, the first rod is coaxially fixed with a sector gear, the inner wall of the concave groove is connected with a ring gear in a sliding mode, the ring gear is meshed with the sector gear, three sliding grooves are uniformly formed in the top wall of the ring gear, three supporting columns are uniformly and fixedly arranged on the top wall of the base, a rack I is slidably connected in each supporting column, a sliding rod is fixed on the bottom wall of the rack I, the sliding rod is slidably connected in the corresponding sliding groove, a clamping block is fixedly connected to one end of the sliding rod, a plurality of cavities are formed in the inner wall of the clamping block, piezoelectric plates are fixed on the inner wall of each cavity, a warning lamp is fixed on the top wall of the clamping block, the piezoelectric plates are electrically connected with the warning lamp, and the inner wall of each cavity is elastically connected with a fixed block through a spring, the fixing block penetrates through the cavity in a sealing and sliding connection mode, electrorheological fluid is filled in the cavity, and the electrorheological fluid is electrically connected with the polishing motor.

Further, the processing agency still includes that the equipartition sets up the three dead slot at the pedestal roof, the dead slot inner wall rotates and is connected with the second pole, the lateral wall dislocation fixedly connected with pinion and the gear wheel of second pole, pinion and rack I mesh are connected, three tongue-and-groove has been seted up to pedestal roof equipartition, the upper portion and the dead slot intercommunication in tongue-and-groove, tongue-and-groove inner wall sliding connection has rack II, rack II and gear wheel mesh are connected, the common fixedly connected with annular plate of rack II roof, a plurality of exhaust holes have been seted up along circumference to the annular plate inner wall.

Further, processing agency still includes the sliding plug of fixed connection in rack II bottom, convex groove bottom is equipped with the filter screen, convex groove inner wall runs through the one-way blast pipe of fixedly connected with, base inner wall has been seted up and has been held the smoke cavity, convex groove diapire all through one-way intake pipe with hold the fixed intercommunication in smoke cavity, hold the smoke cavity through the fixed intercommunication of first body and exhaust hole, be equipped with the electronic control valve in the first body, electronic control valve and polishing motor electric connection.

Further, the spout is the arc wall structure, and is three the spout is eccentric settings at annular face gear roof, annular face gear comprises annular plate and annular sawtooth.

Furthermore, an annular groove is formed in the inner wall of the concave groove, a plurality of limiting blocks are fixedly connected to the side wall of the annular face gear, the limiting blocks are connected in the annular groove in a sliding mode, and the diameter ratio of the large gear to the small gear is 2: 1.

Further, adjustment mechanism includes fixed connection at the support frame of base roof, the support frame is U font structure, the turn trough has all been seted up to two inside walls that the support frame is close, the turn trough inner wall rotates and is connected with the lead screw, lead screw lateral wall threaded connection has the nut, two the first plate body of the common fixedly connected with of nut lateral wall, grinding motor fixed connection is at first plate body diapire, grinding dish fixed connection is at grinding motor's output.

Further, adjustment mechanism still includes the square chamber of symmetry division at the base inner wall, first pole through rotation connects at square intracavity wall, the base lateral wall is fixed with the motor, the one end coaxial fixed of motor and first pole, first pole lateral wall is fixed with two first cone pulleys, the bottom of lead screw runs through base inner wall after-fixing and has the second cone pulley, second cone pulley and the meshing of a first cone pulley that corresponds are connected.

The invention has the following advantages:

1. the first rod rotates for a certain angle, so that under the action of structures such as a sector gear, an annular face gear, a sliding groove and a sliding rod, the three clamping blocks are close to each other until a plurality of fixing blocks on each clamping block can abut against the uneven side face of the bearing bush, line contact clamping or small-area surface contact clamping in the traditional clamping is avoided, clamping reminding is carried out through a piezoelectric plate and a warning lamp, and finally, the electrorheological fluid is electrified from a liquid state to a solid state through the opening of a grinding motor, so that a spring and the fixing blocks are fixed and do not move any more, the fixing of the bearing bushes by the fixing blocks is ensured to be firm, the bearing bushes cannot move due to external force in the processing process, the clamping mode can be suitable for the bearing bushes with different diameters, and the application range of the device is enlarged;

2. in the clamping process, under linkage of a plurality of structures, the rack II can drive the sliding plug to slide upwards in the convex groove in a sealing manner, negative pressure is pumped in the smoke storage cavity through the one-way air inlet pipe, the smoke storage cavity is in a negative pressure state, after the polishing motor is powered on and opened, the electronic control valve is switched from a closed state to an open state, the smoke storage cavity in the negative pressure state is pumped from a plurality of smoke exhaust holes through the first pipe body, waste smoke generated in the polishing process is pumped into the smoke storage cavity for collection and purification treatment, and overflow of the waste smoke in the processing process is reduced, so that harm is generated to a human body and the environment;

3. because the ratio of the large gear to the small gear is 2:1, when the large gear drives the rack II to slide upwards along the vertical direction, the stroke distance is enlarged, the upward movement distance of the annular plate is doubled, the annular plate is in an un-lifted state when not being machined, the bearing bush is placed into the device by a user without being influenced, when the annular plate is machined and polished, the annular plate lifted upwards can play a role in protecting polishing scraps from splashing, and the purpose of absorbing smoke dust generated in the polishing process can be achieved through the smoke exhaust hole.

Drawings

Fig. 1 is a schematic structural view of a bearing bush polishing device provided by the invention;

FIG. 2 is an enlarged view of the structure of part A in FIG. 1;

fig. 3 is a schematic structural view of a clamping block in the bearing bush grinding device provided by the invention, which is sectioned along the vertical direction;

fig. 4 is a schematic mechanism diagram of a base in a bearing bush grinding processing device in a vertical sectional view according to the present invention;

fig. 5 is an enlarged schematic view of the structure of part B in fig. 4.

In the figure: 1 base, 201 first rod, 202 concave groove, 203 piezoelectric plate, 204 annular face gear, 205 sector gear, 206 sliding groove, 207 sliding rod, 208 supporting column, 209 rack I, 210 annular groove, 211 limiting block, 212 clamping block, 213 cavity, 214 spring, 215 fixing block, 216 electrorheological fluid, 217 warning light, 301 pinion, 302 bull gear, 303 second rod, 304 rack II, 305 annular plate, 306 smoke vent, 307 convex groove, 308 sliding plug, 309 smoke storage cavity, 310 one-way air inlet pipe, 311 empty groove, 401 square cavity, 402 first cone wheel, 403 second cone wheel, 404 lead screw, 405 nut, 406 first plate, 6 grinding motor, 7 grinding disc, 8 motor and 9 supporting frame.

Detailed Description

Referring to fig. 1-5, a bearing bush polishing device comprises a base 1, a polishing motor 6 and a polishing disc 7, wherein the base 1 is provided with a processing mechanism for polishing a bearing bush and an adjusting mechanism for vertically driving the polishing motor 6;

the processing mechanism comprises a concave groove 202 arranged in a base 1, the inner wall of the concave groove 202 is connected with a first rod 201 in a penetrating and rotating mode, a sector gear 205 is coaxially fixed on the first rod 201, the inner wall of the concave groove 202 is connected with an annular face gear 204 in a sliding mode, the annular face gear 204 is meshed with the sector gear 205, three sliding grooves 206 are uniformly formed in the top wall of the annular face gear 204, three supporting columns 208 are uniformly and fixedly arranged on the top wall of the base 1, a rack I209 is connected in each supporting column 208 in a sliding mode, a sliding rod 207 is fixed on the bottom wall of each rack I209 and is connected in the corresponding sliding groove 206 in a sliding mode, a clamping block 212 is fixedly connected to one end of each sliding rod 207, a plurality of cavities 213 are formed in the inner wall of the clamping block 212, piezoelectric sheets 203 are fixed on the inner walls of the cavities 213, warning lamps 217 are fixed on the top walls of the clamping blocks 212, the piezoelectric sheets 203 are electrically connected with the warning lamps 217, and the inner walls of the cavities 213 are elastically connected with fixing blocks 215 through springs 214, the fixing blocks 215 penetrate through the cavity 213 in a sealing and sliding connection manner, the cavity 213 is filled with electrorheological fluid 216, the electrorheological fluid 216 is electrically connected with the grinding motor 6, the motor 8 drives the first rod 201 to rotate for a certain angle, so that the first rod 201 drives the annular face gear 204 to slide in the concave groove 202 through the sector gear 205, the section of the concave groove 202 along the horizontal direction is in a circular structure, the motion track of the annular face gear 204 is also in a circular shape, three eccentrically arranged sliding grooves 206 are uniformly distributed on the top wall of the annular face gear 204, in the process of sliding one end distance of the annular face gear 204, the sliding rod 207 and the rack I209 are driven to move towards the bearing bush through the sliding grooves 206, the three racks I209 drive the corresponding clamping blocks 212 to approach each other until the plurality of fixing blocks 215 on each clamping block 212 sequentially abut against the side face of the bearing bush, the fixing blocks 215 extrude the springs 214 until the piezoelectric extrusion sheets 203, make piezoelectric patches 203 produce the piezoelectric effect, thereby supply power once to warning light 217, warning light 217 twinkles once, in the process that three clamp splice 212 is constantly close to the axle bush, a plurality of fixed block 215 on every clamp splice 212 offsets with the irregular lateral wall of axle bush in proper order, make warning light 217 twinkle, until warning light 217 does not take place the scintillation, it is good to the fixed contact of axle bush to show a plurality of fixed blocks 215 in every clamp splice 212 under this state, turn on grinding motor 6 this moment, also can make electrorheological fluid 216 circular telegram when grinding motor 6 circular telegram, thereby make electrorheological fluid 216 circular telegram back from liquid state to solid state, and then fix spring 214 and fixed block 215, make it no longer produce the motion.

The processing mechanism further comprises three empty grooves 311 uniformly distributed on the top wall of the base 1, the inner wall of the empty groove 311 is rotatably connected with a second rod 303, the side wall of the second rod 303 is fixedly connected with a pinion 301 and a gearwheel 302 in a staggered manner, the pinion 301 is meshed with a rack I209, the top wall of the base 1 is uniformly provided with three convex grooves 307, the upper parts of the convex grooves 307 are communicated with the empty grooves 311, the inner wall of the convex grooves 307 is slidably connected with a rack II304, the rack II304 is meshed with the gearwheel 302, the top wall of the rack II304 is fixedly connected with an annular plate 305 together, the inner wall of the annular plate 305 is circumferentially provided with a plurality of smoke exhaust holes 306, in the moving process that the rack I209 approaches to a bearing bush, the pinion 301 which is driven to be meshed with the rotation, so that the pinion 301 drives the gearwheel 302 to rotate through the second rod 303, the gearwheel 302 drives the rack II304 to move upwards, and because the diameter ratio of the gearwheel 302 to the pinion 301 is 2:1, therefore, when the rack gear II304 is driven by the bull gear 302 to slide upwards along the vertical direction, the stroke distance is enlarged, and the upward movement distance of the annular plate 305 is doubled.

Processing agency still includes the sliding plug 308 of fixed connection in the rack II304 bottom, convex groove 307 bottom is equipped with the filter screen, convex groove 307 inner wall runs through the one-way blast pipe of fixedly connected with, base 1 inner wall has been seted up and has been held smoke chamber 309, convex groove 307 diapire all through one-way intake pipe 310 with hold the fixed intercommunication of smoke chamber 309, hold smoke chamber 309 through the fixed intercommunication of first body and smoke vent 306, be equipped with the electronic control valve in the first body, electronic control valve and 6 electric connection of polishing motor, at the gliding in-process of rack II304 upwards, will drive sliding plug 308 upwards sealed the slip in convex groove 307, take out the negative pressure in holding smoke chamber 309 through one-way intake pipe 310, make hold smoke chamber 309 in be the negative pressure state, and simultaneously, it is equipped with the purification unit who handles to the smoke and dust to hold in smoke chamber 309.

The sliding grooves 206 are arc-shaped groove structures, the three sliding grooves 206 are eccentrically arranged on the top wall of the annular face gear 204, and the annular face gear 204 is composed of an annular plate and annular saw teeth, so that when the annular face gear 204 rotates forwards and backwards, the sliding rods 207 and the racks I209 can be driven to move forwards and backwards through the sliding grooves 206.

An annular groove 210 is formed in the inner wall of the concave groove 202, a plurality of limiting blocks 211 are fixedly connected to the side wall of the annular face gear 204, the limiting blocks 211 are connected in the annular groove 210 in a sliding mode, the diameter ratio of the large gear 302 to the small gear 301 is 2:1, and the annular face gear 204 is connected to the inner wall of the concave groove 202 in a sliding mode under the action of the limiting blocks 211 and the annular groove 210 to form an annular movement track.

Adjustment mechanism includes support frame 9 of fixed connection at the base 1 roof, support frame 9 is U-shaped font structure, the turn trough has all been seted up to two inside walls that support frame 9 is close, the turn trough inner wall rotates and is connected with lead screw 404, lead screw 404 lateral wall threaded connection has nut 405, the first plate body 406 of the common fixedly connected with of two nut 405 lateral walls, 6 fixed connection of grinding motor is at first plate body 406 diapire, 7 fixed connection of grinding plate is at the output of grinding motor 6, nut 405 offsets with the turn trough inner wall, do not produce the rotation, grinding motor 6 and grinding plate 7 are along with the synchronous up-and-down motion of first plate body 406, thereby make 7 counter shaft tiles of grinding plate polish.

The adjusting mechanism further comprises a square cavity 401 symmetrically formed in the inner wall of the base 1, the first rod 201 is connected to the inner wall of the square cavity 401 in a penetrating and rotating mode, the motor 8 is fixed to the side wall of the base 1, the motor 8 is coaxially fixed to one end of the first rod 201, the side wall of the first rod 201 is fixed with two first conical wheels 402, the bottom end of the lead screw 404 is fixed with a second conical wheel 403 after penetrating through the inner wall of the base 1, the second conical wheel 403 is meshed with the corresponding first conical wheel 402 and is connected with the corresponding first conical wheel 402, the motor 8 is a forward and reverse rotating motor, the transmission ratio of the first conical wheel 402 to the second conical wheel 403 and the lead of the lead screw 404 are set, when the motor 8 drives the first rod 201 to rotate, the first rod 201 drives the first conical wheel 402 to rotate, the first conical wheel 402 drives the nut 405 to move downwards through the second conical wheel 403 and the lead screw 404, and the nut 405 drives the grinding motor 6 to move downwards through the first plate body 406.

In the invention, the motor 8 drives the first rod 201 to rotate for a certain angle, so that the first rod 201 drives the annular face gear 204 to slide in the concave groove 202 through the sector gear 205, the section of the concave groove 202 along the horizontal direction is in a circular structure, the motion trail of the annular face gear 204 is also in a circular shape, and three eccentrically arranged sliding grooves 206 are uniformly distributed on the top wall of the annular face gear 204, so that in the process of sliding one end distance of the annular face gear 204, the sliding rod 207 and the rack I209 are driven to move towards the bearing bush through the sliding grooves 206, the three racks I209 drive the corresponding clamping blocks 212 to mutually approach until the fixing blocks 215 on each clamping block 212 abut against the side surface of the bearing bush, in the process, even if the side wall of the bearing bush is an uneven surface, the fixing blocks 215 can still abut against different positions of the side wall of the bearing bush, the application range of the device is enlarged, and after each fixing block 215 abuts against the side wall of the bearing bush shaft, the fixing blocks 215 extrude the springs 214 until the piezoelectric sheets 203 are extruded, so that the piezoelectric sheets 203 deform under mechanical extrusion to generate a piezoelectric effect, the warning lamp 217 is powered for the first time, the warning lamp 217 flashes once, and in the process that the three clamping blocks 212 continuously approach the bearing bush, the fixing blocks 215 on each clamping block 212 sequentially abut against the irregular side walls of the bearing bush, so that the warning lamp 217 flashes until the warning lamp 217 does not flash, which indicates that the fixing contact of the fixing blocks 215 in each clamping block 212 to the bearing bush is good in the state, at the moment, the polishing motor 6 is turned on, and the electrorheological fluid 216 is electrified when the polishing motor 6 is electrified, so that the electrorheological fluid 216 is changed from a liquid state to a solid state after being electrified, and then the springs 214 and the fixing blocks 215 are fixed and do not move any more, thereby ensuring that the fixing of the fixing blocks 215 to the bearing bush is firm, the shaking caused by external force in the processing process can not be generated.

In the gliding in-process that makes progress at rack II304, to drive sliding plug 308 upwards sealed slip in convex groove 307, take out the negative pressure through one-way intake pipe 310 in holding smoke chamber 309, make hold and be the negative pressure state in the smoke chamber 309, and simultaneously, it is equipped with the purification part who handles the smoke and dust to hold in the smoke chamber 309, after polishing motor 6 circular telegram was opened, the electronic control valve was converted into the open mode by the closure state, make the smoke chamber 309 that holds of negative pressure state bleed through first body in from a plurality of exhaust holes 306, collect and purification treatment in holding smoke chamber 309 with the exhaust fume suction that the in-process produced of polishing, reduce the overflow of exhaust fume in the course of working, thereby produce harm to human body and environment.

And because the diameter ratio of the big gear 302 and the small gear 301 is 2:1, when the big gear 302 drives the rack II304 to slide upwards along the vertical direction, the stroke distance is enlarged, the upward movement distance of the annular plate 305 is doubled, the annular plate 305 is in an un-lifted state when not being processed, the bearing bush is placed into the device by a user, when the annular plate 305 is processed and polished, the annular plate 305 lifted upwards can play a role in protecting polishing chips from splashing, and the purpose of absorbing smoke dust generated in the polishing process can be achieved through the lifted smoke exhaust hole 306.

When the motor 8 drives the first rod 201 to rotate, the first rod 201 also drives the first conical wheel 402 to rotate, the first conical wheel 402 drives the nut 405 to move downwards through the second conical wheel 403 and the lead screw 404, meanwhile, the sector gear 205 rotates to enable the plurality of fixing blocks 215 on the clamping block 212 to fix the bearing bushes, then the sector gear 205 is disengaged from the annular face gear 204, but the nut 405 can still drive the grinding motor 6 to move downwards through the first plate body 406, finally, the fixing operation is completed through the fixing blocks 215, then the grinding motor 6 and the grinding disc 7 are subjected to grinding, and waste smoke generated by grinding is collected and purified.

Claims

1. A bearing bush polishing device comprises a base (1), a polishing motor (6) and a polishing disc (7), and is characterized in that a processing mechanism for polishing a bearing bush and an adjusting mechanism for vertically driving the polishing motor (6) are arranged on the base (1);

the processing mechanism comprises a concave groove (202) arranged in a base (1), the inner wall of the concave groove (202) is connected with a first rod (201) in a penetrating and rotating mode, a sector gear (205) is coaxially fixed on the first rod (201), an annular face gear (204) is connected on the inner wall of the concave groove (202) in a sliding mode, the annular face gear (204) is meshed with the sector gear (205), three sliding grooves (206) are evenly distributed on the top wall of the annular face gear (204), each sliding groove (206) is of an arc-shaped groove structure, the three sliding grooves (206) are eccentrically arranged on the top wall of the annular face gear (204), three supporting columns (208) are evenly distributed on the top wall of the base (1), each supporting column (208) is internally provided with a rack I (209) in a sliding mode, a sliding rod (207) is fixed on the bottom wall of the rack I (209), and the sliding rods (207) are connected in the corresponding sliding grooves (206) in a sliding mode, one end of the sliding rod (207) is fixedly connected with a clamping block (212), the processing mechanism also comprises three empty grooves (311) which are uniformly distributed on the top wall of the base (1), the inner wall of the empty groove (311) is rotationally connected with a second rod (303), the side wall of the second rod (303) is fixedly connected with a pinion (301) and a bull gear (302) in a staggered manner, the pinion (301) is meshed with the rack I (209), three convex grooves (307) are uniformly distributed on the top wall of the base (1), the upper part of the convex groove (307) is communicated with the empty groove (311), the inner wall of the convex groove (307) is connected with a rack II (304) in a sliding way, the rack II (304) is meshed with the bull gear (302), the top wall of the rack II (304) is fixedly connected with an annular plate (305), a plurality of smoke exhaust holes (306) are formed in the inner wall of the annular plate (305) along the circumferential direction.

2. The bearing bush grinding device according to claim 1, wherein a plurality of cavities (213) are formed in the inner wall of the clamping block (212), piezoelectric plates (203) are fixed to the inner wall of each cavity (213), a warning lamp (217) is fixed to the top wall of each clamping block (212), the piezoelectric plates (203) are electrically connected with the warning lamps (217), the inner wall of each cavity (213) is elastically connected with a fixing block (215) through a spring (214), the fixing blocks (215) are connected in the cavities (213) in a penetrating and sealing mode in a sliding mode, electrorheological fluid (216) is filled in the cavities (213), and the electrorheological fluid (216) is electrically connected with the grinding motor (6).

3. The bearing bush grinding processing device according to claim 2, wherein the processing mechanism further comprises a sliding plug (308) fixedly connected to the bottom end of the rack II (304), a filter screen is arranged at the bottom of the convex groove (307), a one-way exhaust pipe is fixedly connected to the inner wall of the convex groove (307) in a penetrating manner, a smoke storage cavity (309) is formed in the inner wall of the base (1), the bottom wall of the convex groove (307) is fixedly communicated with the smoke storage cavity (309) through a one-way air inlet pipe (310), the smoke storage cavity (309) is fixedly communicated with a smoke exhaust hole (306) through a first pipe body, an electronic control valve is arranged in the first pipe body, and the electronic control valve is electrically connected with the grinding motor (6).

4. The bearing shell grinding apparatus of claim 1, wherein said annular face gear (204) is comprised of an annular plate and annular saw teeth.

5. The bearing bush grinding device as claimed in claim 3, wherein an annular groove (210) is formed in the inner wall of the concave groove (202), a plurality of limiting blocks (211) are fixedly connected to the side wall of the annular face gear (204), the limiting blocks (211) are slidably connected in the annular groove (210), and the diameter ratio of the large gear (302) to the small gear (301) is 2: 1.

6. The bearing bush grinding device according to claim 5, wherein the adjusting mechanism comprises a support frame (9) fixedly connected to the top wall of the base (1), the support frame (9) is of an inverted U-shaped structure, two inner side walls close to the support frame (9) are both provided with a rotating groove, the inner wall of the rotating groove is rotatably connected with a lead screw (404), the side wall of the lead screw (404) is in threaded connection with a nut (405), two side walls of the nut (405) are fixedly connected with a first plate body (406) together, the grinding motor (6) is fixedly connected to the bottom wall of the first plate body (406), and the grinding disc (7) is fixedly connected to the output end of the grinding motor (6).

7. The bearing bush grinding device according to claim 6, wherein the adjusting mechanism further comprises a square cavity (401) symmetrically formed in the inner wall of the base (1), the first rod (201) is connected to the inner wall of the square cavity (401) in a penetrating and rotating mode, a motor (8) is fixed to the side wall of the base (1), the motor (8) and one end of the first rod (201) are coaxially fixed, two first conical wheels (402) are fixed to the side wall of the first rod (201), a second conical wheel (403) is fixed to the bottom end of the lead screw (404) after penetrating through the inner wall of the base (1), and the second conical wheel (403) is meshed with the corresponding first conical wheel (402).