Brake, braking system and vehicle

Abstract

The utility model belongs to the technical field of vehicles, and discloses a brake, a braking system and a vehicle. The brake comprises a piston, a baffle and an adjusting assembly, the adjusting assembly comprises a sliding sleeve, a supporting base, a return elastic piece and an adjusting piece, the baffle provided with the sliding sleeve and the piston are arranged in a spaced mode, the adjusting piece is arranged in the sliding sleeve in a sliding mode, the first end of the adjusting piece abuts against the piston, and the second end of the adjusting piece is limited to the end face of the sliding sleeve. The supporting base is arranged on the periphery of the adjusting piece in a sleeving mode, a preset gap can be formed between the supporting base and the first end of the adjusting piece, the return elastic piece is arranged between the first end of the adjusting piece and the supporting base, the return elastic piece can make the supporting base abut against the sliding sleeve, and the sliding sleeve can be pushed by the supporting base to move. The brake can adjust the position of the sliding sleeve so as to adjust the position of the preset gap, can compensate the abrasion of the friction plate, and ensures the response efficiency. The adjusting assembly has reset and gap adjusting effects simultaneously, the structure is simple, installation is convenient, and cost is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a brake, a braking system and a vehicle. Background Art

[0002] The oil-immersed clutch friction system is widely used in the fields of automatic shifting and gearboxes. Most clutches use several friction discs arranged alternately with several steel discs to provide torque transmission during frictional engagement. This structure is also used in braking systems and is achieved by strengthening the frictional engagement between the friction discs and the steel discs through a piston arranged in a housing. The piston linearly moves in the cavity between the engagement position and the disengagement position in the housing, and the moving distance is called the clearance. When the components are not engaged, the clearance enables the friction discs to separate from the steel discs and rotate independently, reducing the rotational loss during transmission. However, when the friction plates are worn, the clearance will increase, resulting in too long engagement time and affecting its response efficiency.

[0003] With the development of heavy vehicles towards large-scale, the requirements for brakes are getting higher and higher, especially for the fast response, reliability and maintainability of brakes. At present, most brakes still do not have a clearance adjustment function. And the structures of some brake cylinders with adjustment functions are relatively complex, with large installation space, high manufacturing difficulty and cost.

[0004] Therefore, a brake and a vehicle are needed to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a brake, a braking system and a vehicle. The brake can set the moving clearance of the friction plate as needed, with flexible and convenient adjustment, and can compensate for the increase in the moving clearance caused by the wear of the friction plate, thereby ensuring that the piston stroke remains unchanged and improving the response efficiency.

[0006] To achieve the above object, the utility model adopts the following technical solutions:

[0007] A brake, the brake includes a piston, a baffle and an adjustment assembly. The adjustment assembly includes a sliding sleeve, a support seat, a return elastic member and an adjustment member. The piston and the baffle are arranged at intervals. The sliding sleeve is arranged on the baffle. The adjustment member is slidably arranged in the sliding sleeve, and the first end of the adjustment member abuts against the piston. The second end of the adjustment member is limited at the end face of the sliding sleeve. The support seat is sleeved on the outer periphery of the adjustment member and forms a preset clearance with the first end of the adjustment member. The return elastic member is arranged between the first end of the adjustment member and the support seat. The return elastic member is configured to make the support seat abut against the sliding sleeve, and the sliding sleeve can move under the push of the support seat.

[0008] As an alternative technical solution, the support base includes an abutting portion and a limiting portion. One end of the return elastic member abuts against the first end face of the abutting portion. The second end face of the abutting portion abuts against the end face of the sliding sleeve close to the piston. The limiting portion and the first end of the adjusting member can be spaced apart to form the preset gap.

[0009] As an alternative technical solution, the support base further includes an inserting portion. The inserting portion is connected to one end of the abutting portion away from the limiting portion. The inserting portion is inserted into the sliding sleeve.

[0010] As an alternative technical solution, a abutting platform is provided at the first end of the adjusting member. The abutting platform is used to abut against the piston. One end of the abutting platform away from the piston abuts against the return elastic member.

[0011] As an alternative technical solution, a pushing portion is further provided at the first end of the adjusting member. The pushing portion is located at one end of the abutting platform away from the piston. The pushing portion and the limiting portion can form the preset gap.

[0012] As an alternative technical solution, the adjusting assembly further includes an adjusting nut. The adjusting nut is in threaded communication with the first end of the adjusting member. The adjusting nut abuts against the end face of the sliding sleeve.

[0013] As an alternative technical solution, the cross section of the sliding sleeve is a C-shaped structure.

[0014] As an alternative technical solution, the return elastic member is a spring.

[0015] The present utility model also adopts the following technical solutions:

[0016] A braking system, the braking system includes a brake oil tank, a brake pump and the brake as described above. The brake oil tank, the brake pump and the brake are connected in sequence. The brake pump is used to convey the hydraulic oil in the brake oil tank to the brake.

[0017] The present utility model also adopts the following technical solutions:

[0018] A vehicle, the vehicle includes the braking system as described above.

[0019] The beneficial effects of the present utility model:

[0020] The present utility model discloses a brake, which includes a piston, a baffle plate and an adjusting assembly. The adjusting assembly includes a sliding sleeve, a support seat, a return elastic member and an adjusting member. The piston and the baffle plate are arranged at intervals. The sliding sleeve is arranged on the baffle plate. The adjusting member is slidably arranged in the sliding sleeve, and the first end of the adjusting member abuts against the piston. The second end of the adjusting member is limited to the end face of the sliding sleeve. The support seat is sleeved on the outer periphery of the adjusting member and can form a preset gap with the first end of the adjusting member. The return elastic member is arranged between the first end of the adjusting member and the support seat. The return elastic member is configured to make the support seat abut against the sliding sleeve, and the sliding sleeve can move under the push of the support seat. In the initial state of this brake, a preset gap is formed between the support seat and the first end of the adjusting member. When the friction plate is not worn, the piston pushes the adjusting member to move a preset gap under the action of hydraulic oil, and then the friction plate can play a braking role. When the friction plate is worn, after the piston moves a preset gap, the friction plate still cannot play a braking role. At this time, the support seat and the first end of the adjusting member abut against each other. When the piston continues to move, it will push the sliding sleeve to move a certain distance along the baffle plate until the friction plate brakes normally. After the hydraulic oil supply is stopped, the piston returns under the action of the return elastic member. At the same time, the support seat and the first end of the adjusting member resume the preset gap under the action of the return elastic member, and the sliding sleeve will remain at the moved position. The distance that the sliding sleeve moves on the baffle plate can compensate for the increase in the moving gap caused by the wear of the friction plate, and can ensure that the distance that the piston moves during the next braking is still the preset gap, thereby ensuring the braking response efficiency. And the adjusting assembly of this brake has both a reset function and a gap adjustment function, with a simple structure and convenient installation, which not only improves the space utilization rate but also can effectively reduce costs.

[0021] The present utility model also discloses a braking system, which includes a brake oil tank, a brake pump and the brake as described above. The brake oil tank, the brake pump and the brake are connected in sequence. The brake pump is used to transport the hydraulic oil in the brake oil tank to the brake. This braking system can keep the braking stroke consistent all the time, thereby improving the braking effectiveness and response efficiency.

[0022] The present utility model also discloses a vehicle, which includes the brake as described above. This brake can avoid the increase in the braking stroke caused by the wear of the friction plate, thereby ensuring the use performance and safety of the vehicle. Description of the Drawings

[0023] Figure 1 is a partial structural schematic diagram of the brake according to an embodiment of the present utility model;

[0024] Figure 2 is Figure 1 a partial enlarged view of A in

[0025] In the figure:

[0026] X, preset gap;

[0027] 10. Piston;

[0028] 20. Baffle; 21. Mounting hole;

[0029] 30. Adjusting assembly; 31. Sliding sleeve; 32. Support seat; 321. Abutting portion; 322. Limiting portion; 323. Inserting portion; 33. Return elastic member; 34. Adjusting member; 341. Abutting platform; 342. Pushing portion; 35. Adjusting nut;

[0030] 40. Housing;

[0031] 50. Friction plate. Detailed implementation manners

[0032] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the convenience of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0033] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0034] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above the top of", and "on the top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below the bottom of", and "under the bottom of" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0035] In the description of this embodiment, the azimuth or positional relationships such as "upper", "lower", "right", etc. are based on the azimuth or positional relationships shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific azimuth, be constructed and operated in a specific azimuth. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0036] As Figures 1 to 2 shown, in this embodiment, a brake is provided. The brake includes a piston 10, a baffle 20, and an adjustment assembly 30. The adjustment assembly 30 includes a sliding sleeve 31, a support seat 32, a return elastic member 33, and an adjustment member 34. The piston 10 and the baffle 20 are arranged at intervals. The sliding sleeve 31 is arranged on the baffle 20. The adjustment member 34 is slidably arranged in the sliding sleeve 31. The first end of the adjustment member 34 abuts against the piston 10. The second end of the adjustment member 34 is limited to the end face of the sliding sleeve 31. The support seat 32 is sleeved on the outer periphery of the adjustment member 34 and can form a preset gap X with the first end of the adjustment member 34. The return elastic member 33 is arranged between the first end of the adjustment member 34 and the support seat 32. The return elastic member 33 is configured to make the support seat 32 abut against the sliding sleeve 31, and the sliding sleeve 31 can move under the push of the support seat 32. Specifically, in this embodiment, the brake further includes a housing 40. The baffle 20 is installed on the housing 40 to form an installation cavity. The installation cavity includes a piston installation cavity. The piston 10 is installed in the piston installation cavity, and the piston 10 and the baffle 20 are arranged at intervals. An installation hole 21 is provided on the baffle 20. The sliding sleeve 31 is installed in the installation hole 21. An oil passage is provided on the housing 40. The oil passage is communicated with the piston installation cavity and can inject hydraulic oil into the piston installation cavity to push the piston 10 to move. When the injection of hydraulic oil stops, the piston 10 is reset under the action of the return elastic member 33. The piston 10 is connected to the friction plate 50. The moving distance of the piston 10 is the moving distance of the friction plate 50.

[0037] In this embodiment, in the initial state, a preset gap X is formed between the first end of the adjusting member 34 of the brake and the support seat 32. When the friction plate 50 is not worn, the piston 10 is pushed by the hydraulic oil to move the preset gap X after compressing the return elastic member 33 of the adjusting member 34. At this time, the support seat 32 and the first end of the adjusting member 34 are in contact, and the friction plate 50 plays a braking role, and the brake works normally. When the friction plate 50 wears, after the piston 10 drives the friction plate 50 to move the preset gap X, the friction plate 50 still cannot play a braking role. At this time, the support seat 32 and the first end of the adjusting member 34 are already in contact. The piston 10 continues to move under the action of the hydraulic oil, which will push the support seat 32 to move, and then push the sliding sleeve 31 to move a certain distance relative to the mounting hole 21 of the baffle 20 until the friction plate 50 can brake normally and then stop. After stopping supplying the hydraulic oil, the piston 10 returns under the action of the return elastic member 33. At the same time, the support seat 32 returns to the preset gap X with the first end of the adjusting member 34 under the action of the return elastic member 33, and the sliding sleeve 31 will remain in the moved position, and the distance that the sliding sleeve moves on the baffle 20 can compensate for the increase in the moving gap caused by the wear of the friction plate 50, and can ensure that the distance that the piston 10 moves during the next braking is still the preset gap X, thereby ensuring the braking response efficiency. This kind of brake can be automatically adjusted so that the braking stroke is always consistent with the preset gap X, thereby ensuring the corresponding time of braking and improving the safety during vehicle driving, which is particularly suitable for vehicles with high braking requirements such as tractors. And the adjusting assembly 30 of this brake has both a reset function and a gap adjustment function, with a simple structure and convenient installation, which not only improves the space utilization rate but also can effectively reduce costs.

[0038] In this embodiment, the brake includes a plurality of adjusting assemblies 30, and the plurality of adjusting assemblies 30 are arranged at equal intervals around one of the concentric circles of the piston 10 to improve the balance of the force on the piston 10.

[0039] Optionally, in this embodiment, a sealing ring is provided between the piston 10 and the side wall of the piston installation cavity to prevent the leakage of hydraulic oil.

[0040] Further, the support seat 32 includes an abutting portion 321 and a limiting portion 322. One end of the return elastic member 33 abuts against the first end face of the abutting portion 321, the second end face of the abutting portion 321 abuts against the end face of the sliding sleeve 31 close to the piston 10, and the limiting portion 322 of the support seat 32 and the first end of the adjusting member 34 can be spaced apart to form the preset gap X. Specifically, in this embodiment, both ends of the abutting portion 321 of the support seat 32 abut against the end face of the sliding sleeve 31 close to the piston 10 and one end of the return elastic member 33. The limiting portion 322 of the support seat 32 can not only be spaced apart from the first end of the adjusting member 34 to form the preset gap X, but also play a certain guiding role for the adjusting member 34 to avoid jamming and improve the flexibility and smoothness during use.

[0041] Further, the support base 32 further includes an insertion portion 323. The insertion portion 323 is connected to one end of the abutting portion 321 away from the limiting portion 322, and the insertion portion 323 is inserted into the sliding sleeve 31. Specifically, in this embodiment, the insertion portion 323 is inserted into the sliding sleeve 31, which can provide a certain guiding effect on the adjusting member 34, avoid the position deviation of the adjusting member 34 and other factors affecting the adjustment function of the adjusting assembly 30, and improve the integrity of the support base 32 and the sliding sleeve 31 to ensure safety during use.

[0042] Further, a abutting platform 341 is provided at the first end of the adjusting member 34. The abutting platform 341 is used to abut against the piston 10, and one end of the abutting platform 341 away from the piston 10 abuts against the return elastic member 33. Specifically, in this embodiment, the provision of the abutting platform 341 can increase the contact area with the piston 10, and thus improve the force uniformity of the piston 10.

[0043] Further, a pushing portion 342 is further provided at the first end of the adjusting member 34. The pushing portion 342 is located at one end of the abutting platform 341 away from the piston 10, and a preset gap X can be formed between the pushing portion 342 and the limiting portion 322. Specifically, in this embodiment, the pushing portion 342 can be arranged at an interval with the limiting portion 322. The outer peripheral dimension of the abutting platform 341 is larger than that of the pushing portion 342, and the outer peripheral dimension of the abutting portion 321 is larger than that of the limiting portion 322. The return elastic member 33 is arranged outside the pushing portion 342 and the limiting portion 322 to avoid jamming of the return elastic member 33.

[0044] Further, the adjusting assembly 30 further includes an adjusting nut 35. The adjusting nut 35 is threadedly connected to the second end of the adjusting member 34, and the adjusting nut 35 abuts against the end face of the sliding sleeve 31. Specifically, in this embodiment, the adjusting nut 35 includes a convex platform and an insertion portion. The insertion portion is inserted into the sliding sleeve 31, and the convex platform abuts against the end face of the sliding sleeve 31. This arrangement can make the second end of the adjusting member 34 be unidirectionally limited in the sliding sleeve 31. Thus, it can not only ensure that the adjusting member 34 can slide normally along the sliding sleeve 31 to ensure that the friction plate 50 can brake normally, but also ensure that the position of the adjusting member 34 can be fixed relative to the sliding sleeve 31, thereby ensuring that the preset gap X remains fixed and ensuring the response efficiency. The insertion portion can also play a certain guiding role for the adjusting member 34 to avoid jamming.

[0045] Further, the cross section of the sliding sleeve 31 is a C-shaped structure. Specifically, in this embodiment, this structure enables the sliding sleeve 31 to slide along the mounting hole 21 of the baffle 20 under the action of an external force to ensure the use function.

[0046] Further, the return elastic member 33 is a spring. Specifically, in this embodiment, the return elastic member 33 is a spring, which is in a compressed state, capable of causing the first end of the adjusting member 34 to push the piston 10 to return, and ensuring that the support seat 32 and the sliding sleeve 31 are always in contact, thereby ensuring that the braking stroke is always the preset gap X.

[0047] In this embodiment, a braking system is further provided. The braking system includes a brake oil tank, a brake pump, and the brake as described above. The brake oil tank, the brake pump, and the brake are communicated in sequence. The brake pump is used to convey the hydraulic oil in the brake oil tank to the brake. Specifically, in this embodiment, the brake oil tank is communicated with the oil circuit on the housing 40 of the brake. The brake pump is arranged between the brake oil tank and the brake and is used to pump hydraulic oil into the brake. This braking system can make the braking stroke always remain consistent, thereby improving the braking effectiveness and response efficiency.

[0048] In this embodiment, a vehicle is further provided. The vehicle includes the braking system as described above. This vehicle has effective braking, high braking response efficiency, and the braking stroke will not increase due to the wear of the friction plate 50, thereby ensuring the driving safety of vehicles such as tractors.

[0049] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments, and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A brake, characterized in that, The brake includes a piston (10), a baffle (20), and an adjustment assembly (30). The adjustment assembly (30) includes a sliding sleeve (31), a support seat (32), a return elastic member (33), and an adjustment member (34). The piston (10) and the baffle (20) are arranged at an interval. The sliding sleeve (31) is arranged on the baffle (20). The adjustment member (34) is slidably arranged in the sliding sleeve (31). The first end of the adjustment member (34) abuts against the piston (10), and the second end of the adjustment member (34) is limited to the end face of the sliding sleeve (31). The support seat (32) is sleeved on the outer periphery of the adjustment member (34) and forms a preset gap (X) with the first end of the adjustment member (34). The return elastic member (33) is arranged between the first end of the adjustment member (34) and the support seat (32). The return elastic member (33) is configured to make the support seat (32) abut against the sliding sleeve (31), and the sliding sleeve (31) can move under the push of the support seat (32).

2. The brake according to claim 1, characterized in that The support seat (32) includes an abutting portion (321) and a limiting portion (322). One end of the return elastic member (33) abuts against the first end face of the abutting portion (321). The second end face of the abutting portion (321) abuts against the end face of the sliding sleeve (31) close to the piston (10). The limiting portion (322) and the first end of the adjustment member (34) can be arranged at an interval to form the preset gap (X).

3. The brake according to claim 2, characterized in that, The support seat (32) further includes an inserting portion (323). The inserting portion (323) is connected to one end of the abutting portion (321) away from the limiting portion (322). The inserting portion (323) is inserted into the sliding sleeve (31).

4. The brake according to claim 2, wherein Abutting platform (341) is arranged at the first end of the adjustment member (34). The abutting platform (341) is used to abut against the piston (10). One end of the abutting platform (341) away from the piston (10) abuts against the return elastic member (33).

5. The brake according to claim 4, wherein A pushing portion (342) is further arranged at the first end of the adjustment member (34). The pushing portion (342) is located at one end of the abutting platform (341) away from the piston (10). The pushing portion (342) and the limiting portion (322) can form the preset gap (X).

6. The brake according to claim 1, characterized in that, The adjustment assembly (30) further includes an adjustment nut (35). The adjustment nut (35) is threadedly connected to the first end of the adjustment member (34). The adjustment nut (35) abuts against the end face of the sliding sleeve (31).

7. The brake according to any one of claims 1-6, characterized in that, The cross-section of the sliding sleeve (31) is a C-shaped structure.

8. The brake according to any one of claims 1-6, characterized in that, The return elastic member (33) is a spring.

9. A braking system, characterized in that, The braking system includes a brake oil tank, a brake pump, and the brake according to any one of claims 1-8. The brake oil tank, the brake pump, and the brake are connected in sequence. The brake pump is used to convey the hydraulic oil in the brake oil tank to the brake.

10. A vehicle, characterized in that, The vehicle includes the braking system according to claim 9.

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