CN212251081U - Novel hydraulic parking brake device - Google Patents
Novel hydraulic parking brake device Download PDFInfo
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- CN212251081U CN212251081U CN202020979279.3U CN202020979279U CN212251081U CN 212251081 U CN212251081 U CN 212251081U CN 202020979279 U CN202020979279 U CN 202020979279U CN 212251081 U CN212251081 U CN 212251081U
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- brake
- parking
- lower side
- oil cylinder
- spring
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Abstract
The utility model discloses a novel hydraulic parking brake device, which comprises a gearbox body and a parking brake device, wherein the right side of the gearbox body is connected with the parking brake device, an expansion shoe brake is arranged in the parking brake device, a brake drum is arranged on the right side of the expansion shoe brake, the rear side of the parking brake device is connected with a brake handle, the lower side of the brake handle is provided with a brake bracket, the lower side of the brake bracket is connected with a brake oil cylinder assembly, the outer side of the brake oil cylinder assembly is provided with a brake spring cylinder, the inner part of the brake spring cylinder is provided with a brake spring, the lower side of the brake spring is connected with a brake piston, the lower side of the brake piston is provided with a brake oil seal, the lower side of the brake oil seal is provided with a brake oil cylinder, the lower side of the, the brake is quickly released, and the using requirement of the parking brake of the excavator is met.
Description
Technical Field
The utility model relates to a braking equipment technical field specifically is a novel hydraulic pressure parking braking device.
Background
The brake device (brake equipment) is a general name of all brake and deceleration systems arranged on the automobile, the function of the brake device is to reduce the speed of the running automobile or stop running or keep the stopped automobile still, the structure and the performance of the brake device are directly related to the safety of the automobile and personnel, so the brake device is considered as an important safety part of the automobile and is generally regarded as important, the variety of the gearbox for the existing market excavator is few, the structure is complex and the arrangement space is large for pneumatic gear shifting and parking braking, and the brake device is provided with components such as an inflating pump, an air storage cylinder, a pressure controller, a relay valve and the like besides a master cylinder, a slave cylinder and a brake pipeline; the oil brake has simple structure and small required installation space, only needs a brake master cylinder, a slave cylinder, a brake pipeline and a pressure controller, and does not need other accessory equipment.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel hydraulic pressure parking braking device to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a novel hydraulic parking brake device comprises a gearbox body and a parking brake device, wherein the right side of the gearbox body is connected with the parking brake device, the parking brake device consists of an expansion shoe brake, a brake drum, a brake handle, a brake support, a brake oil cylinder assembly, a brake spring cylinder, a brake spring, a brake piston, a brake oil seal, a brake oil cylinder, a brake oil inlet, a fastening bolt and a fastening nut, the expansion shoe brake is arranged inside the parking brake device, the brake drum is arranged on the right side of the expansion shoe brake, the brake handle is connected on the rear side of the parking brake device, the brake support is arranged on the lower side of the brake handle, the brake oil cylinder assembly is connected on the lower side of the brake support, the brake spring cylinder is arranged on the outer side of the brake oil cylinder assembly, the brake spring is arranged inside the brake spring cylinder, and the, the brake oil seal is arranged on the lower side of the brake piston, the brake oil cylinder is arranged on the lower side of the brake oil seal, and the brake oil inlet is formed in the lower side of the center of the brake oil cylinder.
Preferably, the brake drum is connected with the output shaft through a fastening bolt and fastened into a whole.
Preferably, the chassis of the expansion shoe brake is fastened on the gearbox casing through a fastening bolt, and is a non-rotating part.
Preferably, the brake cylinder assembly is fixed on the gearbox casing through the matching connection of the brake bracket, the fastening bolt and the fastening nut.
Preferably, the output end of the piston of the brake cylinder assembly is connected with the brake handle at the rear side of the expansion shoe brake through a fastening bolt.
Preferably, the braking spring has an initial compression force.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a hydraulic pressure parking arresting gear parking braking is reliable, and it is rapid to remove the braking, satisfies and digs quick-witted parking braking operation requirement.
1. The brake drum and the output shaft are connected and fastened into a whole through a fastening bolt, a chassis of the expansion shoe brake is connected and fastened on a gearbox body through the fastening bolt and is a non-rotating part, a brake oil cylinder assembly is connected and fixed on the gearbox body through a brake support and the fastening bolt and the fastening nut in a matched mode, the tail end of a piston output end of the brake oil cylinder assembly is connected with a brake handle on the rear side of the expansion shoe brake through the fastening bolt, a brake spring has initial compression force, the parking brake of the parking brake device is guaranteed to be reliable through the mutual matching of the brake oil cylinder assembly and the brake nut, the brake is released rapidly, and therefore the using requirements of the parking brake of.
Drawings
Fig. 1 is a schematic front structural view of the present invention;
fig. 2 is a schematic side view of the present invention;
in the figure: 1-a gearbox box body, 2-a parking brake device, 3-an expansion shoe brake, 4-a brake drum, 5-a brake handle, 6-a brake bracket, 7-a brake cylinder assembly, 8-a brake spring cylinder, 9-a brake spring, 10-a brake piston, 11-a brake oil seal, 12-a brake cylinder, 13-a brake oil inlet, 14-a fastening bolt and 15-a fastening nut.
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, the present invention provides a technical solution: the utility model provides a novel hydraulic pressure parking brake device, includes gearbox box 1 and parking brake device 2, its characterized in that: the right side of the gearbox body 1 is connected with a parking brake device 2, the parking brake device 2 is composed of an expansion shoe brake 3, a brake drum 4, a brake handle 5, a brake bracket 6, a brake oil cylinder assembly 7, a brake spring cylinder 8, a brake spring 9, a brake piston 10, a brake oil seal 11, a brake oil cylinder 12, a brake oil inlet 13, a fastening bolt 14 and a fastening nut 15, the expansion shoe brake 3 is arranged in the parking brake device 2, the brake drum 4 is arranged on the right side of the expansion shoe brake 3, the brake handle 5 is connected with the rear side of the parking brake device 2, the brake bracket 6 is arranged on the lower side of the brake handle 5, the brake oil cylinder assembly 7 is connected with the lower side of the brake bracket 6, the brake spring cylinder 8 is arranged on the outer side of the brake oil cylinder assembly 7, the brake spring 9 is arranged in the brake spring cylinder 8, and the brake piston 10, the brake device is characterized in that a brake oil seal 11 is arranged on the lower side of the brake piston 10, a brake oil cylinder 12 is arranged on the lower side of the brake oil seal 11, a brake oil inlet 13 is arranged on the lower side of the center of the brake oil cylinder 12, the brake drum 4 is connected with an output shaft through a fastening bolt 14 and is fastened into a whole, a chassis of the expansion shoe brake 3 is connected and fastened on the gearbox body 1 through the fastening bolt 14 and is a non-rotating part, a brake oil cylinder assembly 7 is connected and fixed on the gearbox body 1 through a brake bracket 6 and the fastening bolt 14 in a matched mode and a fastening nut 15, the tail end of the piston output of the brake oil cylinder assembly 7 is connected with a brake handle 5 on the rear side of the expansion shoe brake 3 through the fastening bolt.
The working principle is as follows: when the excavator is in a parking state, no pressure oil is supplied, the piston is positioned at the uppermost end under the action of the self resetting force of the brake spring 9, the brake handle 5 is driven to rotate, the expansion shoe of the expansion shoe brake 3 is stirred, the expansion shoe of the expansion shoe brake 3 is expanded to press the brake drum 4 to generate resistance, and the parking brake function is achieved; when the vehicle is started, oil pressure enters from a brake oil inlet 13 of a brake oil cylinder 12 to push a brake piston 10 to move downwards, so that a brake handle 5 is driven to rotate and return, and an expansion shoe of an expansion shoe brake 3 is closed, so that brake resistance is relieved, and smooth running is realized.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
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 (6)
1. The utility model provides a novel hydraulic pressure parking brake device, includes gearbox box (1) and parking brake device (2), its characterized in that: the right side of the gearbox body (1) is connected with a parking brake device (2), the parking brake device (2) is composed of a shoe expansion brake (3), a brake drum (4), a brake handle (5), a brake support (6), a brake oil cylinder assembly (7), a brake spring cylinder (8), a brake spring (9), a brake piston (10), a brake oil seal (11), a brake oil cylinder (12), a brake oil inlet (13), a fastening bolt (14) and a fastening nut (15), the shoe expansion brake (3) is arranged inside the parking brake device (2), the brake drum (4) is arranged on the right side of the shoe expansion brake (3), the brake handle (5) is connected with the rear side of the parking brake device (2), the brake support (6) is arranged on the lower side of the brake handle (5), and the brake oil cylinder assembly (7) is connected with the lower side of the brake support (6), the brake oil cylinder assembly is characterized in that a brake spring cylinder (8) is arranged on the outer side of the brake oil cylinder assembly (7), a brake spring (9) is arranged inside the brake spring cylinder (8), a brake piston (10) is connected to the lower side of the brake spring (9), a brake oil seal (11) is arranged on the lower side of the brake piston (10), a brake oil cylinder (12) is arranged on the lower side of the brake oil seal (11), and a brake oil inlet (13) is arranged on the lower side of the center of the brake oil cylinder (12).
2. The novel hydraulic parking brake device according to claim 1, characterized in that: the brake drum (4) is connected with the output shaft through a fastening bolt (14) and is fastened into a whole.
3. The novel hydraulic parking brake device according to claim 1, characterized in that: the chassis of the expansion shoe brake (3) is connected and fastened on the gearbox body (1) through a fastening bolt (14) and is a non-rotating part.
4. The novel hydraulic parking brake device according to claim 1, characterized in that: and the brake oil cylinder assembly (7) is connected and fixed on the gearbox body (1) through the matching of the brake bracket (6), the fastening bolt (14) and the fastening nut (15).
5. The novel hydraulic parking brake device according to claim 1, characterized in that: the piston output tail end of the brake cylinder assembly (7) is connected with a brake handle (5) on the rear side of the expansion shoe brake (3) through a fastening bolt (14).
6. The novel hydraulic parking brake device according to claim 1, characterized in that: the brake spring (9) has an initial compression force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020979279.3U CN212251081U (en) | 2020-06-02 | 2020-06-02 | Novel hydraulic parking brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020979279.3U CN212251081U (en) | 2020-06-02 | 2020-06-02 | Novel hydraulic parking brake device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212251081U true CN212251081U (en) | 2020-12-29 |
Family
ID=73978253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020979279.3U Active CN212251081U (en) | 2020-06-02 | 2020-06-02 | Novel hydraulic parking brake device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212251081U (en) |
-
2020
- 2020-06-02 CN CN202020979279.3U patent/CN212251081U/en active Active
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