Motor buffer protection device

Abstract

The utility model relates to the field of buffer protection devices, in particular to a motor buffer protection device. The technical problems that an existing motor buffer protection device is generally difficult to be quickly installed and fixed around a motor shell, and the heat dissipation and noise reduction effects on a motor are difficult to improve are solved. According to the technical scheme, the motor buffer protection device comprises a first supporting assembly; the LED lamp further comprises a reinforcing assembly, a second supporting assembly, a heat dissipation assembly, a limiting assembly and a silencing assembly. Through the arrangement of the reinforcing assembly, the second supporting assembly, the heat dissipation assembly, the limiting assembly and the silencing assembly, protection on the first supporting assembly can be improved, the motor is effectively prevented from being impacted, the heat dissipation effect on the first supporting assembly can be improved through the heat dissipation assembly, the silencing effect on the first supporting assembly can be improved through the silencing assembly, and the service life of the motor is prolonged. The problems mentioned above are solved.

Description

Technical Field

[0001] The utility model belongs to the field of buffer protection devices, and in particular relates to a motor buffer protection device. Background Art

[0002] As the core equipment in industrial production, motors are widely used in various production lines. However, in actual operation, motors are often affected by external shocks, vibrations and other factors, which can easily affect the normal operation of the motors. At present, the motor buffer protection device in the prior art is usually a closed or semi-closed shell or barrier body set on the outside of the motor casing. However, the existing motor buffer protection device is usually difficult to quickly install and fix around the motor casing, and it is difficult to improve the heat dissipation and noise reduction effects of the motor, which needs further improvement. Utility Model Content

[0003] In order to overcome the problem that the existing motor buffer protection device is usually difficult to be quickly installed and fixed around the motor housing, and it is difficult to improve the heat dissipation and noise reduction effects of the motor.

[0004] The technical solution of the utility model is: a motor buffer protection device, including a first support component; also including a reinforcement component, a second support component, a heat dissipation component, a limit component and a silencer component; the front and rear ends of the first support component are provided with reinforcement components for reinforcing the first support component; the second support component is provided on the reinforcement component; the heat dissipation component for dissipating the heat of the first support component is also provided on the reinforcement component; the left end of the first support component is provided with a limit component for locking the heat dissipation component; the upper end of the first support component is provided with a silencer component for noise reduction.

[0005] Preferably, when in use, the two reinforcement components are placed at the front and rear ends of the first support component, and then the second support component is placed on the reinforcement component, the limit component is placed at the left end of the first support component, and the silencer component is placed at the upper end of the limit component. Then, after the heat dissipation component is rotated, the heat dissipation component is positioned by using the limit component, so that the reinforcement component, the second support component, the heat dissipation component, the limit component and the silencer component can be quickly and stably placed. The settings of the reinforcement component, the second support component, the heat dissipation component, the limit component and the silencer component can all improve the protection of the first support component and effectively prevent the motor from being impacted. The heat dissipation component can improve the heat dissipation effect of the first support component, and the silencer component can improve the silencer effect of the first support component, which solves the problem that the existing motor buffer protection device is usually difficult to quickly install and fix around the motor housing, and it is difficult to improve the heat dissipation and noise reduction effects of the motor.

[0006] Preferably, the first support assembly includes a support frame, a motor body, and mounting holes; the motor body is fixedly connected to the upper end of the support frame; two mounting holes are formed through the lower parts of the front and rear ends of the support frame, and the support frame can stably support the motor body.

[0007] Preferably, the reinforcement assembly includes a first weight, a threaded column, a first through hole, and a movable column; first weights are movably arranged at both the front and rear ends of the support frame; two threaded columns are fixedly connected to the end of the first weight close to the center of the support frame; the outer wall of the threaded column fits with the inner wall of the mounting hole; an internally threaded cylinder is threadedly installed on the outer wall of the threaded column; a first through hole is formed through the left and right ends of the first weight; a movable column is movably arranged on the inner wall of the first through hole; the top view of the first weight is in a "U" shape; two support blocks symmetrically arranged about the center of the upper end surface of the first weight are fixedly connected to the upper end of the first weight. Move the two first weights to the front and rear ends of the support frame respectively, so that the threaded columns pass through the mounting holes and extend into the interior of the support frame, and then threadedly install the internally threaded cylinders on the outer walls of two corresponding threaded columns, and the two first weights can be stably installed at the front and rear ends of the support frame.

[0008] Preferably, the second support assembly includes a sleeve block, a rubber cushion block, and a support rod; a sleeve block is sleeved in the middle of the outer wall of the movable column; a rubber cushion block is fixedly connected to the lower end of the sleeve block; the lower end surface of the rubber cushion block is flush with the lower end surface of the first weight; a support rod is fixedly connected to the upper end of the sleeve block; the left and right ends of the sleeve block fit with the left and right end surfaces of the inner wall of the first weight. Place the sleeve block on the left and right end surfaces of the inner wall of the first weight, and then place the movable column in the inner walls of the first through hole and the sleeve block at the same time, and the sleeve block can be stably placed. The sleeve block and the rubber cushion block can improve the protection of the motor body.

[0009] Preferably, the heat dissipation assembly includes a rotating body, a fixed cylinder, an axial flow fan, a connecting rod, a fixed block, and a card slot; a rotating body is rotatably installed between the two support blocks; a fixed cylinder is fixedly connected to the inner wall of the recess of the rotating body; an axial flow fan is fixedly connected to the inner wall of the fixed cylinder; connecting rods are fixedly connected to the left and right ends of the recess of the rotating body; a fixed block is fixedly connected to the left end of the rotating shaft of the rotating body; a card slot is formed in the upper end of the fixed block; the card slot runs through the left end of the fixed block; the bottom surface of the inner wall of the card slot is 5 cm away from the bottom surface of the fixed block; the upper end surface of the support rod fits with the lower end surface of the rotating body. The rotating body can rotate between the two support blocks. After rotating the rotating body, the axial flow fan faces the direction where the motor body is located. Turning on the axial flow fan can perform air cooling on the first weight, and the upper end of the support rod can also support the lower end surface of the rotating body, improving the stability of the rotating body during placement.

[0010] Preferably, the limiting component includes a second heavy block, a first fixing plate, a first L-shaped block, a long column, a short column, a clamping block, a second L-shaped block and a second through hole; a second heavy block is movably arranged at the left end of the support frame; the upper end of the second heavy block is fixedly connected with a first fixing plate; the middle part of the left end of the first fixing plate is fixedly connected with a first L-shaped block; the center of the upper end of the second heavy block is fixedly connected with a long column; two short columns symmetrical about the long column are fixedly connected to the upper end of the second heavy block; a second L-shaped block is movably arranged above the second heavy block; second through holes are formed through the upper and lower ends of the second L-shaped block; the inner wall of the second through hole is in fit with the outer wall of the long column; a clamping block is fixedly connected to the lower end of the second L-shaped block; the top view of the clamping block is in the shape of "U"; the two ends of the clamping block are adapted to the clamping grooves; the left end face of the recess of the clamping block is in fit with the left end face of the first fixing plate; the left end face of the clamping block is in fit with the right end face of the upper half of the first L-shaped block. Place the clamping block on the inner wall of the first L-shaped block so that the left end face of the recess of the clamping block is in fit with the left end face of the first fixing plate and the left end face of the clamping block is in fit with the right end face of the upper half of the first L-shaped block. At this time, the two ends of the clamping block will be stuck on the inner wall of the clamping groove, and the stable placement of the heat dissipation component can be realized.

[0011] Preferably, the sound insulation component includes a mounting plate, a second fixing plate, a first positioning hole, a second positioning hole, a third fixing plate, a sound insulation cylinder and a sound insulation hole; a mounting plate is movably arranged at the upper end of the first fixing plate; two second fixing plates are fixedly connected to the left edge of the upper end of the mounting plate; the right end of the second fixing plate is fixedly connected with a third fixing plate; the lower end of the third fixing plate is fixedly connected to the upper end of the mounting plate; first positioning holes are formed through the middle parts of the left edges of the upper and lower ends of the mounting plate; two second positioning holes are formed through the left edges of the upper and lower ends of the mounting plate; sound insulation cylinders evenly distributed are fixedly connected through the front and rear ends of the third fixing plate; sound insulation holes evenly distributed are formed through the inner and outer walls of the sound insulation cylinder; the inner wall of the first positioning hole is in fit with the outer wall of the long column; the outer wall of the short column is in fit with the inner wall of the second positioning hole; the top view of the mounting plate is in the shape of a frame. Place the mounting plate on the upper end of the first fixing plate so that the inner wall of the first positioning hole is in fit with the outer wall of the long column and the outer wall of the short column is in fit with the inner wall of the second positioning hole, and the quick and stable placement of the mounting plate can be realized. The setting of a plurality of sound insulation cylinders can improve the sound insulation effect during the operation of the motor body.

[0012] The beneficial effects of the present utility model:

[0013] 1. By moving two first heavy blocks to the front and rear ends of the support frame respectively, the threaded columns pass through the mounting holes and extend into the interior of the support frame. Then, the internal threaded cylinders are threadedly installed on the outer walls of two corresponding threaded columns, and the two first heavy blocks can be stably installed at the front and rear ends of the support frame. Place the sleeve blocks on the left and right end faces of the inner walls of the first heavy blocks, and then place the movable columns in the inner walls of the first through holes and the sleeve blocks at the same time, and the sleeve blocks can be stably placed. The setting of the sleeve blocks and the rubber cushion blocks can improve the protection of the motor body, and solve the problem that the existing motor buffer protection device is usually difficult to be quickly installed and fixed around the motor housing;

[0014] 2. The rotating body can rotate between two support blocks. After rotating the rotating body, the axial flow fan is directed towards the direction where the motor body is located. Turning on the axial flow fan can air-cool and dissipate heat from the first heavy block. The upper end of the support rod can also support the lower end face of the rotating body, improving the stability of the rotating body when placed. Place the mounting plate on the upper end of the first fixing plate, so that the inner wall of the first positioning hole fits with the outer wall of the long column, and the outer wall of the short column fits with the inner wall of the second positioning hole, and the mounting plate can be quickly and stably placed. The setting of multiple sound-absorbing cylinders can improve the sound-absorbing effect during the operation of the motor body, and solve the problem that the existing motor buffer protection device is usually difficult to improve the heat dissipation and noise reduction effects of the motor;

[0015] 3. By placing the block in the inner wall of the first L-shaped block, the left end face of the concave part of the block fits with the left end face of the first fixing plate, and the left end face of the block fits with the right end face of the upper half of the first L-shaped block. At this time, the two ends of the block will be stuck in the inner wall of the card slot, and the heat dissipation component can be stably placed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a three-dimensional structural schematic diagram of a motor buffer protection device of the present utility model;

[0017] Figure 2 Shown is a three-dimensional structural schematic diagram of a first support component of a motor buffer protection device of the present utility model;

[0018] Figure 3 Shown is a three-dimensional split structural schematic diagram of a first support component, a reinforcement component, a second support component and a heat dissipation component of a motor buffer protection device of the present utility model;

[0019] Figure 4 Shown is a three-dimensional split structural schematic diagram of a limit component of a motor buffer protection device of the present utility model;

[0020] Figure 5 Shown is a three-dimensional structural schematic diagram of a sound-absorbing component of a motor buffer protection device of the present utility model.

[0021] The reference numerals in the drawings are: 1, the first support assembly; 101, the support frame; 102, the motor body; 103, the mounting hole; 2, the reinforcement assembly; 201, the first weight; 202, the threaded column; 203, the first through hole; 204, the movable column; 205, the support block; 206, the internal thread cylinder; 3, the second support assembly; 301, the sleeve block; 302, the rubber cushion block; 303, the support rod; 4, the heat dissipation assembly; 401, the rotating body; 402, the fixed cylinder; 403, the axial flow fan; 404, the connecting rod; 405, the fixed block; 406, the card slot; 5, the limiting assembly; 501, the second weight; 502, the first fixing plate; 503, the first L-shaped block; 504, the long column; 505, the short column; 506, the clamping block; 507, the second L-shaped block; 508, the second through hole; 6, the sound insulation assembly; 601, the mounting plate; 602, the second fixing plate; 603, the first positioning hole; 604, the second positioning hole; 605, the third fixing plate; 606, the sound insulation cylinder; 607, the sound insulation hole. Detailed implementation manners

[0022] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0023] Please refer to Figure 1 , the present utility model provides an embodiment: a motor buffer protection device, including a first support assembly 1; further including a reinforcement assembly 2, a second support assembly 3, a heat dissipation assembly 4, a limiting assembly 5 and a sound insulation assembly 6; the front and rear ends of the first support assembly 1 are provided with a reinforcement assembly 2 for reinforcing the first support assembly 1; the reinforcement assembly 2 is provided with a second support assembly 3; the reinforcement assembly 2 is further provided with a heat dissipation assembly 4 for dissipating heat from the first support assembly 1; the left end of the first support assembly 1 is provided with a limiting assembly 5 for locking the heat dissipation assembly 4; the upper end of the first support assembly 1 is provided with a sound insulation assembly 6 for noise reduction.

[0024] Please refer to Figure 2 , in this embodiment, the first support assembly 1 includes a support frame 101, a motor body 102 and a mounting hole 103; the upper end of the support frame 101 is fixedly connected with the motor body 102; two mounting holes 103 are vertically penetrated and opened at the lower parts of the front and rear ends of the support frame 101.

[0025] Please refer to Figure 3, in this embodiment, the reinforcement component 2 includes a first heavy block 201, a threaded column 202, a first through hole 203, and a movable column 204; first heavy blocks 201 are movably arranged at both the front and rear ends of the support frame 101; two threaded columns 202 are fixedly connected to one end of the first heavy block 201 close to the center of the support frame 101; the outer wall of the threaded column 202 fits with the inner wall of the mounting hole 103; an internally threaded cylinder 206 is threadedly installed on the outer wall of the threaded column 202; first through holes 203 are formed through the left and right ends of the first heavy block 201; a movable column 204 is movably arranged on the inner wall of the first through hole 203; the top view of the first heavy block 201 is in a "U" shape; two support blocks 205 symmetrically arranged about the center of the upper end surface of the first heavy block 201 are fixedly connected to the upper end of the first heavy block 201; the second support component 3 includes a sleeve block 301, a rubber cushion block 302, and a support rod 303; a sleeve block 301 is sleeved on the middle part of the outer wall of the movable column 204; a rubber cushion block 302 is fixedly connected to the lower end of the sleeve block 301; the lower end surface of the rubber cushion block 302 is flush with the lower end surface of the first heavy block 201; a support rod 303 is fixedly connected to the upper end of the sleeve block 301; the left and right ends of the sleeve block 301 fit with the left and right end surfaces of the inner wall of the first heavy block 201; the heat dissipation component 4 includes a rotating body 401, a fixed cylinder 402, an axial flow fan 403, a connecting rod 404, a fixed block 405, and a card slot 406; a rotating body 401 is rotatably installed between the two support blocks 205; a fixed cylinder 402 is fixedly connected to the inner wall of the recess of the rotating body 401; an axial flow fan 403 is fixedly connected to the inner wall of the fixed cylinder 402; connecting rods 404 are fixedly connected to the left and right ends of the recess of the rotating body 401; a fixed block 405 is fixedly connected to the left end of the rotating shaft of the rotating body 401; a card slot 406 is formed in the upper end of the fixed block 405; the card slot 406 is arranged in a penetrating manner at the left end of the fixed block 405; the bottom surface of the inner wall of the card slot 406 is five centimeters away from the bottom surface of the fixed block 405; the upper end surface of the support rod 303 fits with the lower end surface of the rotating body 401.

[0026] Please refer to Figure 4, in this embodiment, the limiting component 5 includes a second heavy block 501, a first fixing plate 502, a first L-shaped block 503, a long column 504, a short column 505, a clamping block 506, a second L-shaped block 507 and a second through hole 508; a second heavy block 501 is movably arranged at the left end of the support frame 101; a first fixing plate 502 is fixedly connected to the upper end of the second heavy block 501; a first L-shaped block 503 is fixedly connected to the middle of the left end of the first fixing plate 502; a long column 504 is fixedly connected to the center of the upper end of the second heavy block 501; two short columns 505 symmetrical about the long column 504 are fixedly connected to the upper end of the second heavy block 501; a second L-shaped block 507 is movably arranged above the second heavy block 501; second through holes 508 are formed through the upper and lower ends of the second L-shaped block 507; the inner wall of the second through hole 508 fits with the outer wall of the long column 504; a clamping block 506 is fixedly connected to the lower end of the second L-shaped block 507; the top view of the clamping block 506 is in a "U" shape; the two ends of the clamping block 506 are adapted to the clamping grooves 406; the left end face of the recess of the clamping block 506 fits with the left end face of the first fixing plate 502; the left end face of the clamping block 506 fits with the right end face of the upper half of the first L-shaped block 503.

[0027] Please refer to Figure 5 , in this embodiment, the sound insulation component 6 includes a mounting plate 601, a second fixing plate 602, a first positioning hole 603, a second positioning hole 604, a third fixing plate 605, a sound insulation cylinder 606 and a sound insulation hole 607; a mounting plate 601 is movably arranged at the upper end of the first fixing plate 502; two second fixing plates 602 are fixedly connected to the left edge of the upper end of the mounting plate 601; a third fixing plate 605 is fixedly connected to the right end of the second fixing plate 602; the lower end of the third fixing plate 605 is fixedly connected to the upper end of the mounting plate 601; first positioning holes 603 are formed through the middle of the left edges of the upper and lower ends of the mounting plate 601; two second positioning holes 604 are formed through the left edges of the upper and lower ends of the mounting plate 601; sound insulation cylinders 606 are fixedly connected to the front and rear ends of the third fixing plate 605 in a penetrating manner and are evenly distributed; sound insulation holes 607 are formed through the inner and outer walls of the sound insulation cylinder 606 and are evenly distributed; the inner wall of the first positioning hole 603 fits with the outer wall of the long column 504; the outer wall of the short column 505 fits with the inner wall of the second positioning hole 604; the top view of the mounting plate 601 is in a frame shape.

[0028] When working, first, move the two first heavy blocks 201 to the front and rear ends of the support frame 101 respectively, so that the threaded columns 202 pass through the mounting holes 103 and extend into the interior of the support frame 101, and then thread the internal thread cylinders 206 onto the outer walls of the two corresponding threaded columns 202 to realize the stable installation of the two first heavy blocks 201 at the front and rear ends of the support frame 101;

[0029] Next, manually rotate the rotating body 401 between the two support blocks 205. After rotating the rotating body 401, the axial flow fan 403 is oriented towards the direction where the motor body 102 is located. Turning on the axial flow fan 403 can air-cool and dissipate heat from the first heavy block 201;

[0030] Then, place the sleeve block 301 on the left and right end faces of the inner wall of the first heavy block 201. Then, place the movable column 204 in the inner walls of the first through hole 203 and the sleeve block 301 simultaneously, and the stable placement of the sleeve block 301 can be achieved. The settings of the sleeve block 301 and the rubber cushion block 302 can enhance the protection of the motor body 102. At this time, the upper end of the support rod 303 supports the lower end face of the rotating body 401, realizing the stable placement of the rotating body 401;

[0031] After that, place the mounting plate 601 on the upper end of the first fixing plate 502, making the inner wall of the first positioning hole 603 fit with the outer wall of the long column 504, and the outer wall of the short column 505 fit with the inner wall of the second positioning hole 604. The quick and stable placement of the mounting plate 601 can be achieved. The settings of multiple sound-absorbing cylinders 606 can improve the sound-absorbing effect during the operation of the motor body 102;

[0032] Then, place the clamping block 506 in the inner wall of the first L-shaped block 503, making the left end face of the recess of the clamping block 506 fit with the left end face of the first fixing plate 502, and the left end face of the clamping block 506 fit with the right end face of the upper half of the first L-shaped block 503. At this time, the two ends of the clamping block 506 will be stuck in the inner wall of the clamping groove 406, and the stable placement of the heat dissipation component 4 can be achieved. At the same time, the lower end face of the upper half of the second L-shaped block 507 fits with the upper end face of the mounting plate 601, and the stable placement of the second L-shaped block 507 can be achieved, thereby realizing the stable placement of the clamping block 506, making the protective structure of the device for the motor body 102 quickly disassembled and assembled, which is convenient to use.

[0033] Through the above steps, during use, place the two reinforcement components 2 at the front and rear ends of the first support component 1, then place the second support component 3 on the reinforcement components 2, place the limiting component 5 at the left end of the first support component 1, place the sound insulation component 6 on the upper end of the limiting component 5, and then rotate the heat dissipation component 4. Use the limiting component 5 to position the heat dissipation component 4, and the rapid and stable placement of the reinforcement component 2, the second support component 3, the heat dissipation component 4, the limiting component 5, and the sound insulation component 6 can be achieved. The settings of the reinforcement component 2, the second support component 3, the heat dissipation component 4, the limiting component 5, and the sound insulation component 6 can all improve the protection of the first support component 1, effectively prevent the motor from being impacted. The heat dissipation component 4 can improve the heat dissipation effect of the first support component 1, and the sound insulation component 6 can improve the sound insulation effect of the first support component 1, solving the problems that the existing motor buffer protection devices are usually difficult to be quickly installed and fixed around the motor housing, and it is difficult to improve the heat dissipation and noise reduction effects of the motor.

[0034] The above has described in detail the embodiments of the present invention in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the gist of the present invention.

Claims

1. A motor buffer protection device, comprising a first support assembly (1); characterized in that: The invention also comprises a reinforcement component (2), a second support component (3), a heat dissipation component (4), a limit component (5) and a silencer component (6); the front and rear ends of the first support component (1) are provided with reinforcement components (2) for reinforcing the first support component (1); the second support component (3) is provided on the reinforcement component (2); the heat dissipation component (4) for dissipating heat from the first support component (1) is also provided on the reinforcement component (2); the left end of the first support component (1) is provided with a limit component (5) for locking the heat dissipation component (4); and the upper end of the first support component (1) is provided with a silencer component (6) for reducing noise.

2. A motor buffer protection device according to claim 1, characterized in that: The first support assembly (1) comprises a support frame (101), a motor body (102) and a mounting hole (103); the upper end of the support frame (101) is fixedly connected to the motor body (102); and two mounting holes (103) are provided through the lower portions of the front and rear ends of the support frame (101).

3. A motor buffer protection device according to claim 2, characterized in that: The reinforcement component (2) comprises a first weight block (201), a threaded column (202), a first through hole (203) and a movable column (204); the first weight block (201) is movably arranged at both the front and rear ends of the support frame (101); one end of the first weight block (201) close to the center of the support frame (101) is fixedly connected to two threaded columns (202); the outer wall of the threaded column (202) fits the inner wall of the mounting hole (103); an inner threaded cylinder (206) is threadedly mounted on the outer wall of the threaded column (202); the first through hole (203) is penetrated at the left and right ends of the first weight block (201); the movable column (204) is movably arranged on the inner wall of the first through hole (203); the top view of the first weight block (201) is "U"-shaped; the upper end of the first weight block (201) is fixedly connected to two support blocks (205) symmetrical about the center of the upper end surface of the first weight block (201).

4. A motor buffer protection device according to claim 3, characterized in that: The second support assembly (3) comprises a sleeve block (301), a rubber pad (302) and a support rod (303); the sleeve block (301) is sleeved on the middle part of the outer wall of the movable column (204); the rubber pad (302) is fixedly connected to the lower end of the sleeve block (301); the lower end surface of the rubber pad (302) is flush with the lower end surface of the first weight block (201); the support rod (303) is fixedly connected to the upper end of the sleeve block (301); the left and right ends of the sleeve block (301) are in contact with the left and right end surfaces of the inner wall of the first weight block (201).

5. A motor buffer protection device according to claim 4, characterized in that: The heat dissipation assembly (4) comprises a rotating body (401), a fixing cylinder (402), an axial flow fan (403), a connecting rod (404), a fixing block (405) and a slot (406); the rotating body (401) is rotatably mounted between the two supporting blocks (205); the fixing cylinder (402) is fixedly connected to the inner wall of the recess of the rotating body (401); the axial flow fan (403) is fixedly connected to the inner wall of the fixing cylinder (402); the recess of the rotating body (401) The left and right ends of the recess are fixedly connected with connecting rods (404); the left end of the rotating shaft of the rotating body (401) is fixedly connected with a fixing block (405); a clamping groove (406) is provided at the upper end of the fixing block (405); the clamping groove (406) is arranged through the left end of the fixing block (405); the bottom surface of the inner wall of the clamping groove (406) is five centimeters away from the bottom surface of the fixing block (405); the upper end surface of the support rod (303) is in contact with the lower end surface of the rotating body (401).

6. A motor buffer protection device according to claim 2, characterized in that: The limiting assembly (5) comprises a second weight block (501), a first fixing plate (502), a first L-shaped block (503), a long column (504), a short column (505), a clamping block (506), a second L-shaped block (507) and a second through hole (508); the left end of the support frame (101) is movably provided with the second weight block (501); the upper end of the second weight block (501) is fixedly connected to the first fixing plate (502); the middle part of the left end of the first fixing plate (502) is fixedly connected to the first L-shaped block (503); the middle part of the upper end of the second weight block (501) is fixedly connected to the long column (504); the upper end of the second weight block (501) is fixedly connected to two short columns symmetrical to the long column (504); The second L-shaped block (507) is movably arranged above the second weight block (501); second through holes (508) are formed through the upper and lower ends of the second L-shaped block (507); the inner wall of the second through hole (508) fits with the outer wall of the long column (504); a clamping block (506) is fixedly connected to the lower end of the second L-shaped block (507); the top surface of the clamping block (506) is "U"-shaped; the two ends of the clamping block (506) are matched with the clamping groove (406); the left end surface of the recessed part of the clamping block (506) fits with the left end surface of the first fixed plate (502); the left end surface of the clamping block (506) fits with the right end surface of the upper half of the first L-shaped block (503).

7. A motor buffer protection device according to claim 6, characterized in that: The silencer assembly (6) comprises a mounting plate (601), a second fixing plate (602), a first positioning hole (603), a second positioning hole (604), a third fixing plate (605), a silencer tube (606) and a silencer hole (607); the mounting plate (601) is movably arranged at the upper end of the first fixing plate (502); two second fixing plates (602) are fixedly connected to the left edge of the upper end of the mounting plate (601); the third fixing plate (605) is fixedly connected to the right end of the second fixing plate (602); the lower end of the third fixing plate (605) is fixedly connected to the upper end of the mounting plate (601); the mounting plate (60 1) is provided with a first positioning hole (603) through the middle of the left edges of the upper and lower ends; two second positioning holes (604) are provided through the left edges of the upper and lower ends of the mounting plate (601); the front and rear ends of the third fixing plate (605) are fixedly connected with uniformly distributed silencers (606); the inner and outer walls of the silencers (606) are provided with uniformly distributed silencer holes (607); the inner wall of the first positioning hole (603) is in contact with the outer wall of the long column (504); the outer wall of the short column (505) is in contact with the inner wall of the second positioning hole (604); the top surface of the mounting plate (601) is frame-shaped.

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