CN210949615U - Air pressure disc brake - Google Patents
Air pressure disc brake Download PDFInfo
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- CN210949615U CN210949615U CN201921655015.6U CN201921655015U CN210949615U CN 210949615 U CN210949615 U CN 210949615U CN 201921655015 U CN201921655015 U CN 201921655015U CN 210949615 U CN210949615 U CN 210949615U
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- thrust arm
- adjusting mechanism
- shifting fork
- bearing
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Abstract
The utility model discloses an air pressure disc brake, which comprises a brake caliper shell assembly, wherein a thrust arm bearing seat is arranged at the top end in the brake caliper shell assembly, a half-moon bearing is arranged in the thrust arm bearing seat, the half-moon bearing is rotationally connected with a thrust arm assembly, gear screws are arranged on the left side and the right side below the thrust arm assembly, a piston screw sleeve is sleeved on the outer side of the lower part of each gear screw, and a piston push disc is arranged at the bottom of each piston screw sleeve; the lower part of the thrust arm assembly is positioned between the two piston screw sleeves, a one-way bearing adjusting mechanism assembly is arranged between the two piston screw sleeves, an adjusting mechanism shifting fork is arranged at the top of the one-way bearing adjusting mechanism assembly, a thrust arm shifting fork is arranged on the lower side of the thrust arm assembly corresponding to the adjusting mechanism shifting fork, and the bottom end of the thrust arm shifting fork is arranged at the opening of the adjusting mechanism shifting fork. The utility model has the characteristics of stabilize self-modulation clearance, one-way reliable and intensity, rigidity all better to can export great braking torque, have very big advantage, can satisfy the market demand.
Description
Technical Field
The utility model relates to an automobile safety control system technical field specifically is an atmospheric pressure disk brake.
Background
With the increasing popularization of the active safety control system of the whole vehicle on commercial vehicles, higher requirements are put forward on the brake performance, stability and mechanism durability of an actuating mechanism-brake assembly of the brake system of the whole vehicle. The air pressure floating caliper disc brake is a technical development trend of the air pressure brake of the commercial vehicle, and becomes the key point of research and development of the brake of each main engine factory. The brakes applied to commercial vehicles can be classified into disc brakes and drum brakes according to the structural form of the friction pair. The biggest shortcoming of the drum brake is that the brake clearance is manually adjusted after a friction plate is worn, so that potential safety hazards exist.
Therefore, the automatic brake clearance adjusting device is rapidly developed, and the automatic clearance adjusting arm enables the drum brake to have the self-adjusting function, but the brake has unstable clearance mechanisms such as locking, heating, brake recession and the like after being used for a period of time. Disc brakes have great advantages in temperature, wading, pressure, torque stability, etc. The commercial vehicle is matched with a disc brake, and the technical development direction of a whole vehicle brake system is formed. Accordingly, those skilled in the art have provided a pneumatic disc brake.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a have stable self-modulation clearance, one-way reliable and intensity, rigidity all better to can export the atmospheric pressure disk brake of great braking torque, with the problem of proposing in solving above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a pneumatic disc brake comprises a brake caliper shell assembly, a thrust arm bearing seat, a one-way bearing adjusting mechanism assembly, a half-moon bearing, a thrust arm assembly, a thrust arm shifting fork, an adjusting mechanism shifting fork, a middle gear, a one-way bearing, a return spring, a gear screw, a piston screw sleeve, a piston push disc and a friction plate, wherein the thrust arm bearing seat is installed at the top end in the brake caliper shell assembly, the half-moon bearing is installed in the thrust arm bearing seat, the half-moon bearing is rotatably connected with the thrust arm assembly, the gear screws are respectively arranged on the left side and the right side below the thrust arm assembly, the piston screw sleeve is sleeved on the outer side of the lower part of the gear screw, and the piston push disc is installed at;
a one-way bearing adjusting mechanism assembly is arranged below the thrust arm assembly and between the two piston screw sleeves, the one-way bearing adjusting mechanism assembly comprises a rotating shaft, a one-way bearing is sleeved outside the rotating shaft, a middle gear is sleeved outside the one-way bearing, a return spring is sleeved outside the lower part of the middle gear, an adjusting mechanism shifting fork is arranged at the top of the one-way bearing adjusting mechanism assembly, a thrust arm shifting fork is arranged on the lower side of the thrust arm assembly corresponding to the adjusting mechanism shifting fork, and the bottom end of the thrust arm shifting fork is arranged at an opening of the adjusting mechanism shifting fork;
and a friction component is arranged at the bottom in the brake caliper shell assembly.
As a further aspect of the present invention: and a thrust arm ball socket is arranged at the top of the thrust arm assembly.
As a further aspect of the present invention: the two gear screws are symmetrically arranged relative to the one-way bearing adjusting mechanism assembly, and the middle gear is meshed with the gear screws.
As a further aspect of the present invention: the friction assembly is located below the piston push disc and comprises two friction plates.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses an atmospheric pressure disk brake has stable self-modulation clearance, one-way reliable and intensity, rigidity all better to can export great braking torque's characteristics, have very big advantage, can satisfy the market demand.
Drawings
Fig. 1 is a schematic structural diagram of an air disc brake.
Fig. 2 is a cross-sectional view a-a of fig. 1 in an air disc brake.
In the figure: 1. a brake caliper housing assembly; 2. a thrust arm bearing block; 3. a one-way bearing adjustment mechanism assembly; 4. a half-moon bearing; 5. a thrust arm assembly; 51-a thrust arm ball socket; 6. a thrust arm shift fork; 7. a shifting fork of the adjusting mechanism; 8. an intermediate gear; 9. a one-way bearing; 10. a return spring; 11. a gear screw; 12. a piston screw sleeve; 13. a piston push plate; 14. a friction plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, in an embodiment of the present invention, an air disc brake includes a brake caliper housing assembly 1, a thrust arm bearing seat 2, a one-way bearing adjustment mechanism assembly 3, a half-moon bearing 4, a thrust arm assembly 5, a thrust arm fork 6, an adjustment mechanism fork 7, an intermediate gear 8, a one-way bearing 9, a return spring 10, a gear screw 11, a piston screw sleeve 12, a piston push disc 13, and a friction plate 14, a thrust arm bearing seat 2 is installed at the top end in the brake caliper shell assembly 1, a half-moon bearing 4 is installed in the thrust arm bearing seat 2, the half-moon bearing 4 is rotatably connected with a thrust arm assembly 5, a thrust arm ball socket 51 is arranged at the top of the thrust arm assembly 5, gear screws 11 are arranged on the left side and the right side below the thrust arm assembly 5, a piston screw sleeve 12 is sleeved on the outer side of the lower portion of each gear screw 11, and a piston push disc 13 is installed at the bottom of each piston screw sleeve 12;
a one-way bearing adjusting mechanism assembly 3 is arranged below the thrust arm assembly 5 and between the two piston screw rod sleeves 12, the one-way bearing adjusting mechanism assembly 3 comprises a rotating shaft, a one-way bearing 9 is sleeved outside the rotating shaft, a middle gear 8 is sleeved outside the one-way bearing 9, a return spring 10 is sleeved outside the lower portion of the middle gear 8, the middle gear 8 is meshed with a gear screw rod 11, an adjusting mechanism shifting fork 7 is arranged at the top of the one-way bearing adjusting mechanism assembly 3, a thrust arm shifting fork 6 is arranged on the lower side of the thrust arm assembly 5 corresponding to the adjusting mechanism shifting fork 7, and the bottom end of the thrust arm shifting fork 6 is arranged at an opening of the adjusting mechanism shifting fork 7;
the bottom in the brake caliper shell assembly 1 is provided with a friction component, the friction component is positioned below the piston push disc 13, and the friction component comprises two friction plates 14.
In the brake of the utility model, a thrust arm shifting fork 6 is arranged on a thrust arm assembly 5, the thrust arm shifting fork 6 is arranged in an opening of a shifting fork 7 of an adjusting mechanism in a one-way bearing adjusting mechanism assembly 3, and when the thrust arm assembly 5 rotates, the thrust arm assembly 5 can do curvilinear motion along a half-moon bearing 4 on a thrust arm bearing seat 3;
when the automobile is braked, a driving force acts on a thrust arm ball socket 51 of a thrust arm assembly 5 to rotate the thrust arm ball socket, so that a shifting fork 7 of an adjusting mechanism in a one-way bearing adjusting mechanism assembly 3 is driven to rotate clockwise, a shifting fork 7 of the adjusting mechanism in the one-way bearing adjusting mechanism assembly 3 rotates clockwise, because the inside of the one-way bearing adjusting mechanism assembly 3 can only rotate in one direction (at the moment, a one-way bearing 9 does not rotate), a middle gear 8 (driving gear) in the one-way bearing adjusting mechanism assembly 3 is driven to rotate clockwise, the middle gear 8 rotates to drive gear screws 11 (driven gears) on two sides to rotate anticlockwise, the gear screws 11 on two sides in the one-way bearing adjusting mechanism assembly 3 are meshed with piston screw sleeves 12, the gear screws 11 rotate to drive two piston screw sleeves 12 to rotate anticlockwise, the piston screw sleeves 12 are matched with piston push plates 13, the piston screw sleeves 12 rotate anticlockwise to correspondingly, the clearance between the friction plate 14 and the brake disc in the friction assembly is eliminated, so that braking is realized;
when the brake is released, the driving force returns, the thrust arm assembly 5 starts to return under the action of the return spring 10 to drive the shifting fork 7 of the adjusting mechanism in the one-way bearing adjusting mechanism assembly 3 to rotate anticlockwise, and because the inside of the one-way bearing adjusting mechanism assembly 3 can only rotate in one direction (at the moment, the one-way bearing 9 rotates), the middle gear 8 (driving gear) in the one-way bearing adjusting mechanism assembly 3 does not rotate, the gear screws 11 (driven gears) on two sides of the middle gear 8 do not rotate, so that the piston screw rod sleeve 12 which is matched with the gear screws 11 (driven gears) on two sides does not rotate, and the brake gap is ensured to be constant.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (4)
1. A pneumatic disc brake is characterized by comprising a brake caliper shell assembly (1), a thrust arm bearing seat (2), a one-way bearing adjusting mechanism assembly (3), a half-moon bearing (4), a thrust arm assembly (5), a thrust arm shifting fork (6), an adjusting mechanism shifting fork (7), an intermediate gear (8), a one-way bearing (9), a return spring (10), a gear screw (11), a piston screw sleeve (12), a piston push disc (13) and a friction plate (14), wherein the thrust arm bearing seat (2) is installed at the top end in the brake caliper shell assembly (1), the half-moon bearing (4) is installed in the thrust arm bearing seat (2), the half-moon bearing (4) is rotatably connected with the thrust arm assembly (5), the gear screws (11) are respectively arranged on the left side and the right side below the thrust arm assembly (5), the piston screw sleeve (12) is arranged on the outer side of the lower portion of the gear screw (11), a piston push disc (13) is arranged at the bottom of the piston screw rod sleeve (12);
a one-way bearing adjusting mechanism assembly (3) is arranged below the thrust arm assembly (5) and between the two piston screw sleeves (12), the one-way bearing adjusting mechanism assembly (3) comprises a rotating shaft, a one-way bearing (9) is sleeved outside the rotating shaft, an intermediate gear (8) is sleeved outside the one-way bearing (9), a return spring (10) is sleeved outside the lower part of the intermediate gear (8), an adjusting mechanism shifting fork (7) is arranged at the top of the one-way bearing adjusting mechanism assembly (3), a thrust arm shifting fork (6) is arranged on the lower side of the thrust arm assembly (5) corresponding to the adjusting mechanism shifting fork (7), and the bottom end of the thrust arm shifting fork (6) is arranged at an opening of the adjusting mechanism shifting fork (7);
and a friction assembly is arranged at the bottom in the brake caliper housing assembly (1).
2. A pneumatic disc brake according to claim 1, characterised in that the thrust arm assembly (5) is provided with a thrust arm socket (51) at the top.
3. An air disc brake according to claim 1, characterised in that the two gear screws (11) are symmetrically arranged about the one-way bearing adjustment mechanism assembly (3) and the intermediate gear (8) is in meshing engagement with the gear screws (11).
4. An air disc brake according to claim 1, characterised in that the friction assembly is located below the piston push disc (13) and comprises two friction discs (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921655015.6U CN210949615U (en) | 2019-09-30 | 2019-09-30 | Air pressure disc brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921655015.6U CN210949615U (en) | 2019-09-30 | 2019-09-30 | Air pressure disc brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210949615U true CN210949615U (en) | 2020-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921655015.6U Active CN210949615U (en) | 2019-09-30 | 2019-09-30 | Air pressure disc brake |
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| Country | Link |
|---|---|
| CN (1) | CN210949615U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114526299A (en) * | 2022-01-24 | 2022-05-24 | 瑞立集团瑞安汽车零部件有限公司 | One-way clearance adjusting mechanism for air disc brake |
-
2019
- 2019-09-30 CN CN201921655015.6U patent/CN210949615U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114526299A (en) * | 2022-01-24 | 2022-05-24 | 瑞立集团瑞安汽车零部件有限公司 | One-way clearance adjusting mechanism for air disc brake |
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