CN220816352U

CN220816352U - Brake caliper of agricultural machinery

Info

Publication number: CN220816352U
Application number: CN202322714991.7U
Authority: CN
Inventors: 姚嘉诚
Original assignee: Anhui Zhongjia Hydraulic Technology Co ltd
Current assignee: Anhui Zhongjia Hydraulic Technology Co ltd
Priority date: 2023-10-10
Filing date: 2023-10-10
Publication date: 2024-04-19
Anticipated expiration: 2033-10-10

Abstract

The utility model discloses a brake caliper of agricultural machinery, which relates to the technical field of agricultural machinery and comprises a brake caliper body and a bracket, wherein a guide mechanism is arranged between the brake caliper body and the bracket, a driving mechanism is arranged on the brake caliper body, a first friction plate is fixedly arranged on the driving mechanism, a second friction plate is fixedly arranged on the bracket corresponding to the first friction plate, a reset mechanism is arranged on the brake caliper body, and the reset mechanism is fixedly connected with the first friction plate; the top of the brake caliper body is fixedly provided with a protection plate. The resetting mechanism provided by the utility model has the advantages that a large enough gap is reserved between the friction plate and the brake disc, crushed straw and flock are not easy to be blocked in the gap, the problem of friction heating and ignition can not occur, the problem of locking the brake disc can not occur, and the potential safety hazard is eliminated; the protection plate prevents dust and straw from falling on the surfaces of the friction plate and the brake disc, and ensures the stability of braking torque.

Description

Brake caliper of agricultural machinery

Technical Field

The utility model relates to the technical field of agricultural machinery, in particular to a brake caliper of agricultural machinery.

Background

Agricultural machines refer to various machines used during crop planting, initial processing, and handling. Agricultural machines include soil working machines, crop planting, fertilizing, harvesting and processing machines. The existing brake calipers installed on agricultural machinery mostly imitate automobile brake calipers, a reset mechanism is not arranged on the brake calipers, a gap between a friction plate and a brake disc is too small, when the agricultural machinery with the brake calipers is continuously operated in a field in high-temperature weather, the friction plate and the brake disc can relatively move at high speed under long-time high temperature, crushed crop fine straws and velvet flocks are extremely easy to clamp in the gap and can not fall out, heat is generated by continuous friction for a long time, the temperature is continuously increased, when the ignition of the velvet flocks is achieved, meanwhile, the brake disc is easily locked by the straws and the velvet flocks clamped in the gap, so that the agricultural machinery can not be normally braked, and potential safety hazards exist; the top of the existing brake caliper is provided with a40 multiplied by 26 millimeter rectangular process hole, so that dust and straws can be scattered on the surfaces of the brake disc and the friction plate through the process hole when the agricultural machine works in the field, thereby reducing the surface contact area of the brake disc and the friction plate, reducing the friction force, reducing the braking moment, increasing the braking distance and affecting the braking effect of the agricultural machine.

Disclosure of Invention

The present utility model aims to solve the above problems and provide a brake caliper for agricultural machinery.

The utility model realizes the above purpose through the following technical scheme:

the utility model provides a brake caliper of agricultural machinery, includes brake caliper body and support, be provided with guiding mechanism between brake caliper body and the support, be provided with actuating mechanism on the brake caliper body, the last fixed first friction disc that is provided with of actuating mechanism, the support is last to be provided with the second friction disc corresponding to the fixed position of first friction disc, lie in the support the second friction disc with form the cavity that is used for installing the brake disc between the first friction disc, be provided with canceling release mechanical system on the brake caliper body, canceling release mechanical system with first friction disc fixed connection; the brake caliper is characterized in that a protection plate is fixedly arranged at the top of the brake caliper body.

Preferably, the reset mechanism comprises a round rod, one end of the round rod is fixedly connected with the first friction plate, a through groove and a mounting groove are sequentially formed in the position, corresponding to the round rod, of the brake caliper body, the round rod transversely penetrates through the through groove and the mounting groove and stretches out of the brake caliper body, a spring, a limiting seat and an adjusting nut are sequentially sleeved at the position, outside the brake caliper body, of the round rod, one end of the spring is located in the mounting groove, external threads are formed in the side face of the round rod, and the adjusting nut is in threaded connection with the round rod.

Preferably, the two restoring mechanisms are symmetrically distributed by taking the middle position of the brake caliper body as a symmetrical axis.

Preferably, the brake caliper body is fixedly provided with a positioning spring sheet which is used for helping the positioning of the first friction plate and the second friction plate at the position of the process hole.

Preferably, the driving mechanism comprises a cylinder body, the cylinder body is fixedly arranged at the center of the brake caliper body, the cylinder body is horizontally placed, a piston is slidably arranged in the cylinder body, a sealing ring and a piston shield are sequentially arranged between the cylinder body and the piston and close to one side of the support, and a liquid inlet and an exhaust screw are sequentially arranged on one side of the support and away from the top of the cylinder body.

Preferably, the guide mechanism comprises a guide post, a guide groove is arranged at the position, close to the end part, of the support, the guide post is positioned in the guide groove and is in sliding connection with the guide groove, the guide post extends out of the guide groove, a fixing bolt is arranged at the position, corresponding to the guide post, of the brake caliper body, and the fixing bolt is fixedly connected with one end, extending out of the guide groove, of the guide post.

Further, a protective cover is sleeved at the position between the support and the brake caliper body.

Preferably, the two guide mechanisms are symmetrically distributed by taking the middle position of the brake caliper body as a symmetrical axis.

The utility model has the beneficial effects that: (1) The reset mechanism can enable the first friction plate to quickly return to the initial position after braking is released, ensure that a large enough gap is reserved between the friction plate and the brake disc, ensure that crushed straw and flock are not easy to be blocked in the gap, avoid the problems of friction heating and ignition, avoid the problem of locking the brake disc, and eliminate potential safety hazards; (2) The adjusting nut can change the resetting capability of the resetting mechanism, so that the resetting effect of the first friction plate is ensured; (3) When the agricultural machinery is prevented from operating in the field by the aid of the protection plates, dust and straws are prevented from falling onto the surfaces of the friction plates and the brake discs, cleanliness of the surfaces of the friction plates and the brake discs is guaranteed, the friction plates and the brake discs can be in comprehensive and effective contact, braking torque is stable, the dust-proof plates can also strengthen and protect the brake calipers, and rainwater can be prevented from falling onto the brake calipers directly.

Drawings

FIG. 1 is a first perspective view of the overall structure of the present utility model;

FIG. 2 is a second perspective view of the overall structure of the present utility model;

FIG. 3 is a cross-sectional view of the return mechanism and guide mechanism of the present utility model;

FIG. 4 is a first cross-sectional view of the drive mechanism of the present utility model;

FIG. 5 is a second cross-sectional view of the drive mechanism of the present utility model;

FIG. 6 is a third perspective view of the overall structure of the present utility model;

fig. 7 is a cross-sectional view of a first brake caliper body of the present utility model.

Reference numerals illustrate:

11. A brake caliper body; 111. a process hole; 112. a through groove; 113. a mounting groove; 12. a bracket; 121. a mounting base; 122. a guide groove; 123. a cavity; 13. a first friction plate; 14. a second friction plate; 15. positioning a spring plate;

2. A driving mechanism; 21. a cylinder; 211. a liquid inlet; 212. a vent screw; 22. a piston; 23. a seal ring; 24. a piston shroud;

3. A reset mechanism; 31. a round bar; 32. a spring; 33. a limit seat; 34. an adjusting nut;

4. a guide mechanism; 41. a guide post; 42. a fixing bolt; 43. a protective cover;

5. and (5) protecting the plate.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

As shown in fig. 1,2 and 6, the utility model provides a brake caliper of an agricultural machine, which comprises a brake caliper body 11 and a bracket 12, wherein a guide mechanism 4 is arranged between the brake caliper body 11 and the bracket 12, and a driving mechanism 2 is arranged on the brake caliper body 11. The driving mechanism 2 is fixedly provided with a first friction plate 13, and a second friction plate 14 is fixedly arranged on the bracket 12 at a position corresponding to the first friction plate 13 through a screw. A cavity 123 for mounting the brake disc is formed in the carrier 12 between the second friction plate 14 and the first friction plate 13. The brake caliper body 11 is provided with a reset mechanism 3, and the reset mechanism 3 is fixedly connected with the first friction plate 13. The top of the brake caliper body 11 is fixedly provided with a protection plate 5 through screws. The guard plate 5 covers the process hole 111 at the top of the brake caliper body 11, dust and straws are prevented from falling onto the surfaces of the friction plate and the brake disc, and the friction plate and the brake disc can be fully and effectively contacted, so that the braking torque is stable. Meanwhile, the protection plate 5 can protect the guide mechanism 4 on the brake caliper body 11 and can protect the whole brake caliper.

As shown in fig. 1, 2 and 3, further, on the basis of the above embodiment, the reset mechanism 3 includes a round rod 31, one end of the round rod 31 is fixedly connected with the first friction plate 13, and the round rod 31 and the first friction plate 13 can be fixedly connected through threads. The brake caliper body 11 is provided with a through groove 112 and an installation groove 113 in sequence at positions corresponding to the round bar 31. The round bar 31 transversely penetrates through the groove 112 and the mounting groove 113 and extends out of the brake caliper body 11, the round bar 31 is positioned outside the brake caliper body 11 and sequentially sleeved with the spring 32, the limiting seat 33 and the adjusting nut 34, one end of the spring 32 is positioned in the mounting groove 113, external threads are arranged on the side face of the round bar 31, and the adjusting nut 34 is in threaded connection with the round bar 31. The resetting speed of the resetting mechanism 3 can be achieved by rotating the adjusting nut 34 in a clockwise direction, for example, the adjusting nut 34 pushes the limiting seat 33 to gradually compress the spring 32, the resetting pressure is increased, the resetting speed of the first friction plate 13 is accelerated, and similarly, the resetting speed of the first friction plate 13 can be reduced by rotating the adjusting nut 34 in a counterclockwise direction. The reset mechanism 3 not only can enable the first friction plate 13 to return to the initial position rapidly all the time and ensure the gap between the first friction plate 13 and the brake disc, but also can ensure the smooth return of the first friction plate 13 by changing the return speed through the adjusting nut 34 according to the field operation condition and environment, so that the first friction plate is not blocked by dust and straw dust. The two reset mechanisms 3 are symmetrically distributed by taking the middle position of the brake caliper body 11 as a symmetrical axis. The two symmetrically arranged reset mechanisms 3 help the first friction plate 13 to reset stably.

As shown in fig. 6 and 7, further, on the basis of the above embodiment, the caliper body 11 is fixedly provided with a positioning spring 15 at the position of the process hole 111 to assist in positioning the first friction plate 13 and the second friction plate 14. The positioning spring 15 helps the first friction plate 13 and the second friction plate 14 to be quickly installed.

As shown in fig. 1, 4 and 5, further, the driving mechanism 2 includes a cylinder 21, and the cylinder 21 is fixedly mounted at the center of the caliper body 11, and the cylinder 21 is horizontally disposed. A piston 22 is slidably arranged in the cylinder 21, and a sealing ring 23 and a piston shield 24 are sequentially arranged between the cylinder 21 and the piston 22 and close to the bracket 12. The piston 22 is fixedly connected with the first friction plate 13 by a screw. The top of the cylinder body 21 is provided with a liquid inlet 211 and an exhaust screw 212 in sequence at one side far away from the bracket 12.

As shown in fig. 1, 2 and 3, further, based on the above embodiment, the guide mechanism 4 includes a guide post 41, and the bracket 12 is provided with a guide groove 122 near an end portion, and the guide post 41 is located in the guide groove 122 and slidably connected with the guide groove 122. The guide post 41 extends out of the guide groove 122, a fixing bolt 42 is arranged at a position of the brake caliper body 11 corresponding to the guide post 41, and the fixing bolt 42 is fixedly connected with one end of the guide post 41 extending out of the guide groove 122. A protective cover 43 is sleeved on the guide post 41 between the bracket 12 and the brake caliper body 11. The two guide mechanisms 4 are symmetrically distributed by taking the middle position of the brake caliper body 11 as a symmetrical axis.

As shown in fig. 1 to 7, when the brake disc is mounted, the mounting seat 121 on the bracket 12 and the mounting seat on the agricultural machine are fixedly mounted by screws, and the brake disc is mounted in the cavity 123 between the first friction plate 13 and the second friction plate 14 of the bracket 12. When the agricultural machine needs to brake, a brake pedal of the agricultural machine is stepped on, brake fluid in a pipeline enters the cylinder body 21 from a fluid inlet 211 of the cylinder body 21, the brake fluid overcomes the force of a spring 32 of the resetting mechanism 3 to push a piston 22 to move towards a brake disc, the piston 22 drives a first friction plate 13 to gradually approach the brake disc, and the first friction plate 13 and a second friction plate 14 are matched to brake the brake disc through friction force, so that the agricultural machine is braked; when the brake pedal is not needed, the brake pedal is released, brake fluid flows back to the brake master cylinder, the pressure is released, at the moment, the pressure in the cylinder body 21 is smaller than the acting force of the spring 32 of the reset mechanism 3, the piston 22 is pulled to return rapidly under the action of the elastic force of the spring 32 until the bottom of the piston 22 is in full contact with the end part of the cylinder body 21, at the moment, the piston 22 returns to the initial position, the first friction plate 13 also returns to the initial position, and the gap between the first friction plate 13 and the brake disc is always the same as the initial state, and the crushed straw and flock cannot be blocked due to the larger gap.

The foregoing is merely a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model. Those skilled in the art will appreciate that many changes, modifications, substitutions and alterations can be made to these embodiments without departing from the spirit and scope of the utility model, which are intended to be within the scope of the utility model. The scope of the utility model is defined by the claims and their equivalents.

Claims

1. A brake caliper for an agricultural machine, characterized by: the brake caliper comprises a brake caliper body and a support, wherein a guide mechanism is arranged between the brake caliper body and the support, a driving mechanism is arranged on the brake caliper body, a first friction plate is fixedly arranged on the driving mechanism, a second friction plate is fixedly arranged on the support corresponding to the first friction plate, a cavity for installing a brake disc is formed between the second friction plate and the first friction plate in the support, a reset mechanism is arranged on the brake caliper body, and the reset mechanism is fixedly connected with the first friction plate; the brake caliper is characterized in that a protection plate is fixedly arranged at the top of the brake caliper body.

2. A brake calliper for agricultural machinery according to claim 1, wherein: the reset mechanism comprises a round rod, one end of the round rod is fixedly connected with the first friction plate, a through groove and a mounting groove are sequentially formed in the position, corresponding to the round rod, of the brake caliper body, the round rod transversely penetrates through the through groove and the mounting groove and stretches out of the brake caliper body, a spring, a limiting seat and an adjusting nut are sequentially sleeved at the position, outside the brake caliper body, of the round rod, one end of the spring is located in the mounting groove, external threads are arranged on the side face of the round rod, and the adjusting nut is in threaded connection with the round rod.

3. A brake calliper for agricultural machinery according to claim 1 or 2, wherein: the two resetting mechanisms are symmetrically distributed by taking the middle position of the brake caliper body as a symmetrical axis.

4. A brake calliper for agricultural machinery according to claim 1, wherein: the brake caliper body is fixedly provided with a positioning spring sheet which is used for helping the positioning of the first friction plate and the second friction plate at the position of the process hole.

5. A brake calliper for agricultural machinery according to claim 1, wherein: the driving mechanism comprises a cylinder body, the cylinder body is fixedly arranged at the center of the brake caliper body and horizontally placed, a piston is slidably arranged in the cylinder body, a sealing ring and a piston shield are sequentially arranged between the cylinder body and the piston and close to one side of the support, and a liquid inlet and an exhaust screw are sequentially arranged on one side of the support and away from the top of the cylinder body.

6. A brake calliper for agricultural machinery according to claim 1, wherein: the guiding mechanism comprises a guide post, a guide groove is formed in the position, close to the end portion, of the support, the guide post is located in the guide groove and is in sliding connection with the guide groove, the guide post extends out of the guide groove, a fixing bolt is arranged at the position, corresponding to the guide post, of the brake caliper body, and the fixing bolt is fixedly connected with one end, extending out of the guide groove, of the guide post.

7. A brake calliper for agricultural machinery according to claim 6, wherein: and a protective cover is sleeved at the position between the bracket and the brake caliper body.

8. A brake calliper for agricultural machinery according to claim 1 or 6, wherein: the two guide mechanisms are symmetrically distributed by taking the middle position of the brake caliper body as a symmetrical axis.