CN220956547U - Pneumatic disc brake - Google Patents
Pneumatic disc brake Download PDFInfo
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- CN220956547U CN220956547U CN202323138880.2U CN202323138880U CN220956547U CN 220956547 U CN220956547 U CN 220956547U CN 202323138880 U CN202323138880 U CN 202323138880U CN 220956547 U CN220956547 U CN 220956547U
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- air chamber
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- push rod
- piston
- piston cylinder
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- 239000010985 leather Substances 0.000 claims description 10
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The application relates to the technical field of brakes, in particular to a pneumatic disc brake, which comprises a brake body, wherein a brake movable block is arranged on the brake body, a detachable air chamber component is connected to the brake body, and the air chamber component is abutted against the brake movable block. According to the application, through the detachable connection structure of the brake body and the air chamber component, the replacement is more convenient and faster, compared with a traditional pulling disc type brake, synchronous braking with a tractor is easy to realize, and the braking force is controlled by high-pressure air of the tractor, so that the piston push rod component can adjust the movement between the brake air chamber and the balance air chamber, and accurate control on trailer braking is easy to realize; the cost is lower, the performance is more stable and reliable, and the potential risk is lower.
Description
Technical Field
The application belongs to the technical field of brakes, and particularly relates to a pneumatic disc brake.
Background
Currently, brakes in the trailer industry are mainly divided into two types: drum brakes and pneumatic disc brakes, while pneumatic disc brakes include both pull-line and hydraulic types in general, pull-line pneumatic disc brakes, as shown in fig. 11 and 12, include a brake body and a pull-line lever assembly detachably disposed on the brake body. The parking brake device has the advantages of low cost, simple maintenance and the like, occupies most of the market in industry, and is used for parking brake. However, the demands of the market for products are diversified, clients have modification demands for the products, for example, a stay wire on a stay wire rod is modified into an air chamber of a commercial vehicle, parking brake is modified into service brake by acting on the stay wire rod through the air chamber, but the modified structure has potential harm to the performance and functions of the products, the modification cost is high, the replacement and assembly of each part of structure are complicated, and the operation is inconvenient.
Disclosure of Invention
In order to achieve the above purpose, the application adopts the following technical scheme: the pneumatic disc brake comprises a brake body, wherein a brake movable block is arranged on the brake body, a detachable air chamber component is connected to the brake body, and the air chamber component abuts against the brake movable block.
Optionally, the air chamber component comprises an air chamber assembly, the air chamber assembly comprises a piston cylinder and an air chamber cover arranged on the piston cylinder, the piston cylinder and the air chamber cover are connected together to form an air chamber, and the air chamber comprises a brake air chamber and a balance air chamber; the brake air chamber is provided with an air inlet, and the balance air chamber is provided with an air outlet;
A movable piston push rod assembly is arranged in the brake air chamber, and one end of the piston push rod assembly abuts against the brake movable block.
Optionally, a leather cup is arranged in the air chamber, and divides the air chamber into a braking air chamber and a balance air chamber;
one end of the piston push rod assembly passes through the piston cylinder and then abuts against the brake block, and the other end abuts against the leather cup.
Optionally, a spring is sleeved on the piston push rod assembly.
Optionally, the piston push rod assembly comprises a piston and a push rod, wherein one end of the push rod is connected with the piston and enables the piston to lean against the leather cup; the push rod is sleeved with a spring; the other end of the push rod passes through the piston cylinder, and is provided with a support nut which abuts against the brake movable block.
Optionally, a guide sleeve is disposed at the connection between the push rod and the piston cylinder 331, and the push rod passes through the guide sleeve.
Optionally, the cup is disposed between and secured by the piston cylinder and the cylinder cover.
Optionally, the brake air chamber is positioned at one side where the air chamber cover is positioned, and the balance air chamber is positioned at one side where the piston cylinder is positioned; the air inlet hole is arranged on the air chamber cover, and the air outlet hole is arranged on the piston cylinder.
Optionally, the piston cylinder and the air chamber cover are connected through a clamp.
Optionally, the air chamber assembly is detachably mounted to the brake body by an air chamber bracket.
According to the application, through the detachable connection structure of the brake body and the air chamber component, the replacement is more convenient and faster, compared with a traditional pulling disc type brake, synchronous braking with a tractor is easy to realize, and the braking force is controlled by high-pressure air of the tractor, so that the piston push rod component can adjust the movement between the brake air chamber and the balance air chamber, and accurate control on trailer braking is easy to realize; the cost is lower, the performance is more stable and reliable, and the potential risk is lower.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the pneumatic disc brake of the present application;
FIG. 2 is a schematic structural view of a brake body;
FIG. 3 is a schematic structural view of a plenum assembly;
FIG. 4 is a schematic view of another perspective structure of the pneumatic disc brake of the present application;
FIG. 5 is a cross-sectional view at B-B in FIG. 4;
FIG. 6 is an exploded view of the plenum assembly;
FIG. 7 is an exploded view of the plenum assembly;
FIG. 8 is an exploded view of the piston push rod assembly;
FIG. 9 is a reference view of the pneumatic disc brake of the present application in a braking condition;
FIG. 10 is a reference view showing a state when the pneumatic disc brake of the present application releases the brake;
FIG. 11 is a schematic diagram of a prior art pull-wire disc brake;
FIG. 12 is a schematic view of a prior art pull rod assembly;
the symbols in the drawings illustrate:
1-a brake body; 2-a pull rod assembly; 3-a plenum assembly; 31-fixing bolts; 32-air chamber brackets; 33-a plenum assembly; 331-piston cylinder; 332-guide sleeve; 333-a spring; 334-piston push rod assembly; 3341-support nut; 3342-locking nut; 3343—pushrod; 3344-piston; 3345-inlet holes; 3346-vent holes; 3347-brake chamber; 3348-equilibrium plenum; 335-leather cup; 336-a plenum cover; 337-clamping; 4-braking the movable block.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
A pneumatic disc brake provided by an embodiment of the present application will now be described. Referring to fig. 1 to 3, a pneumatic disc brake comprises a brake body 1, wherein a brake movable block 4 is arranged on the brake body 1, and a detachable air chamber assembly 3 is connected to the brake body 1.
Referring to fig. 4 and 5, air chamber assembly 3 rests against brake shoe 4, thereby moving brake shoe 4 to control the vehicle in operation to stop or slow down.
Referring to fig. 6, the air chamber assembly 3 includes an air chamber assembly 33, and the air chamber assembly 33 is detachably mounted on the brake body 1 through an air chamber bracket 32, and can be connected through a fixing bolt 31 or through other connection modes.
Referring to fig. 5 to 10, the air chamber assembly 33 includes a piston cylinder 331 and an air chamber cover 336 provided on the piston cylinder 331, the piston cylinder 331 and the air chamber cover 336 are connected by a clip 337, and the piston cylinder 331 and the air chamber cover 336 are connected together to form an air chamber. A cup 335 is provided in the air chamber, the cup 335 dividing the air chamber into a brake air chamber 3347 and a balance air chamber 3348, and specifically, the cup 335 is provided between the piston cylinder 331 and the air chamber cover 336 and is fixed by the piston cylinder 331 and the air chamber cover 33.
The brake chamber 3347 is provided with an intake port 3345 and the balance chamber 3348 is provided with an exhaust port 3346.
Clip 337 is preferably a V-shaped clip.
Further, the brake air chamber 3347 is located on the side of the air chamber cover 336, and the balance air chamber 3348 is located on the side of the piston cylinder 331. The air inlet holes 3345 are provided on the air chamber cover 336, preferably at the center position of the air chamber cover 336; the exhaust hole 3346 is provided on the piston cylinder 331, preferably on a side wall of the piston cylinder 331.
A movable piston push rod assembly 334 is arranged in the brake air chamber 3347, and a spring 333 is sleeved on the piston push rod assembly 334. One end of the piston push rod assembly 334 passes through the piston cylinder 331 and abuts against the brake shoe 4, and the other end abuts against the leather cup 335.
Referring to fig. 7 and 8, the piston-pushrod assembly 334 includes a piston 3344 and a pushrod 3343, one end of the pushrod 3343 is connected to the piston 3344 and the piston 3344 is abutted against the cup 335; the push rod 3343 is sleeved with a spring 333; the other end of the push rod 3343 is disposed through the piston cylinder 331. The other end of the push rod 3343 is provided with a support nut 3341, the support nut 3341 is locked on the push rod 3343 through a locking nut 3342, the support nut 3341 is abutted against the brake movable block 4, and the gap between the air chamber and the brake caliper on the brake body 1 is adjusted through the support nut 3341.
The push rod 3343 and the piston 3344 may be connected by welding.
In order to ensure the air tightness of the balance air chamber 3348, a guide sleeve 332 is arranged at the joint of the push rod 3343 and the piston cylinder 331, and the push rod 3343 passes through the guide sleeve 332, so that the air tightness of the balance air chamber 3348 can be ensured, and the push rod 3343 can move back and forth.
The pneumatic disc brake is arranged on a trailer, the tractor pulls the trailer forward, the tractor provides high-pressure gas required by the trailer braking, when the air chamber assembly 33 works, the high-pressure gas enters the braking air chamber 334 through the air inlet holes 3345, the air pressure pushes the leather cup 335 and the piston push rod assembly 334 to move towards the balance air chamber 3348 against the elastic force of the spring 333, and the gas in the balance air chamber 3348 is discharged through the air outlet holes 3346. The extended piston push rod assembly 334 acts on the brake assembly of the brake caliper on the brake body 1 through the support nut 3341 to achieve a braking effect. When the high-pressure gas supplied by the tractor is cut off and the braking is released, the piston push rod assembly 334 moves back to the braking air chamber 3347 direction by the elastic force of the spring 333, the gas in the braking air chamber 3347 is discharged through the air inlet hole 3345, meanwhile, the external air is sucked into the balance air chamber 3348 through the air outlet hole 3346 to balance the internal and external pressure, and the supporting nut 3341 releases the thrust to the braking assembly, so that the braking to the trailer is released.
It should be noted that, the brake caliper according to the present application includes a caliper body, a brake pad, and other structures, where the brake pad and related components form a brake assembly, and the support nut 3341 acts on the brake assembly. The structure of the brake caliper is the prior art and does not belong to the improvement point of the application, so detailed description is omitted.
During the use and installation process, the pull rod assembly 2 can be refitted on the basis of the existing pull-wire brake according to the requirements, the air chamber assembly 3 is replaced after the pull rod assembly 2 is disassembled, the pneumatic disc brake is formed, a brake air source of the tractor is connected to the air inlet 3345 through a pipeline, the whole refitting process can be completed, the assembly process is simple and easy, and the cost is low.
Compared with the traditional wire pulling disc type brake, the synchronous braking with the tractor is easy to realize, and the braking force is controlled by the high-pressure air of the tractor, so that the accurate control on the braking of the trailer is easy to realize; the cost is lower, the replacement is more convenient and quick, the performance is more stable and reliable, and the potential risk is lower.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application.
Claims (9)
1. The utility model provides a pneumatic disc brake, includes the stopper body, be provided with the braking loose piece on the stopper body, its characterized in that: the brake body is connected with a detachable air chamber component which is abutted against the brake movable block;
The air chamber assembly comprises an air chamber assembly, the air chamber assembly comprises a piston cylinder and an air chamber cover arranged on the piston cylinder, the piston cylinder and the air chamber cover are connected together to form an air chamber, and the air chamber comprises a brake air chamber and a balance air chamber; the brake air chamber is provided with an air inlet, and the balance air chamber is provided with an air outlet;
A movable piston push rod assembly is arranged in the brake air chamber, and one end of the piston push rod assembly abuts against the brake movable block.
2. A pneumatic disc brake as defined in claim 1, wherein: a leather cup is arranged in the air chamber, and divides the air chamber into a braking air chamber and a balance air chamber;
one end of the piston push rod assembly passes through the piston cylinder and then abuts against the brake block, and the other end abuts against the leather cup.
3. A pneumatic disc brake as defined in claim 1, wherein: and a spring is sleeved on the piston push rod assembly.
4. A pneumatic disc brake as claimed in claim 2, wherein: the piston push rod assembly comprises a piston and a push rod, and one end of the push rod is connected with the piston and enables the piston to lean against the leather cup; the push rod is sleeved with a spring; the other end of the push rod passes through the piston cylinder, and is provided with a support nut which abuts against the brake movable block.
5. A pneumatic disc brake according to claim 4, wherein: the connecting part of the push rod and the piston cylinder is provided with a guide sleeve, and the push rod passes through the guide sleeve.
6. A pneumatic disc brake as claimed in claim 2, wherein: the leather cup is arranged between the piston cylinder and the air chamber cover and is fixed through the piston cylinder and the air chamber cover.
7. A pneumatic disc brake as defined in claim 1, wherein: the brake air chamber is positioned at one side of the air chamber cover, and the balance air chamber is positioned at one side of the piston cylinder; the air inlet hole is arranged on the air chamber cover, and the air outlet hole is arranged on the piston cylinder.
8. A pneumatic disc brake as defined in claim 1, wherein: the piston cylinder and the air chamber cover are connected through a clamp.
9. A pneumatic disc brake as defined in claim 1, wherein: the air chamber assembly is detachably arranged on the brake body through an air chamber bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323138880.2U CN220956547U (en) | 2023-11-21 | 2023-11-21 | Pneumatic disc brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323138880.2U CN220956547U (en) | 2023-11-21 | 2023-11-21 | Pneumatic disc brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220956547U true CN220956547U (en) | 2024-05-14 |
Family
ID=91011837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323138880.2U Active CN220956547U (en) | 2023-11-21 | 2023-11-21 | Pneumatic disc brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220956547U (en) |
-
2023
- 2023-11-21 CN CN202323138880.2U patent/CN220956547U/en active Active
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