CN217842458U - Parking brake for engineering machinery gearbox - Google Patents
Parking brake for engineering machinery gearbox Download PDFInfo
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- CN217842458U CN217842458U CN202222352598.3U CN202222352598U CN217842458U CN 217842458 U CN217842458 U CN 217842458U CN 202222352598 U CN202222352598 U CN 202222352598U CN 217842458 U CN217842458 U CN 217842458U
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- brake
- rotating shaft
- seat
- parking brake
- gearbox
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Abstract
The utility model discloses a parking brake for an engineering machinery gearbox, which belongs to the technical field of braking and comprises a braking seat, wherein the braking seat is arranged on the gearbox, an installation cavity is arranged inside the braking seat, the installation cavity is provided with an opening end, and an end cover is arranged at the opening end; the mounting cavity is internally provided with steel sheets and friction plates which are alternately arranged; the main body of the brake seat is provided with a rotating shaft in a penetrating mode, the rotating shaft enables the steel sheet and the friction sheet to axially move, two ends of the rotating shaft are rotatably connected with the brake seat, the middle of the rotating shaft is located in an installation cavity of the brake seat, two sides of the main body of the rotating shaft are respectively provided with an elongated slot, and the bottom of each elongated slot is provided with a plane. The utility model provides a pair of parking brake for engineering machine tool gearbox can improve the area of contact of steel sheet and friction disc, and required brake pressure diminishes, does benefit to reducing wear, prolongs the life-span of friction disc, and does not receive weather interference, and brake performance is stable.
Description
Technical Field
The utility model relates to a parking brake for engineering machine tool gearbox belongs to braking technical field.
Background
In order to ensure the safety of the engineering machinery during parking, a parking brake is generally arranged on a gearbox. The parking brake generally comprises a friction plate and a friction plate sliding block which are matched with each other, the friction plate sliding block is driven by hydraulic oil provided by an engineering machinery hydraulic system, when the friction plate and the friction plate sliding block are in extrusion fit, the parking brake is in a braking state, and when the friction plate sliding block is separated from a friction plate, the parking brake is in an unlocking state.
In the prior art, the parking brake of the engineering machinery can basically meet the working requirement, but the following defects still exist in the specific using process: the contact area between the friction plate and the friction plate sliding block is limited, the required braking pressure is large, normal abrasion is not facilitated, and the service life of the friction plate is influenced; the braking performance is subject to weather disturbances, resulting in unstable performance.
In view of the foregoing, it is apparent that the prior art has inconvenience and disadvantages in practical use, and thus, needs to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses not enough to among the background art, provide a parking brake for engineering machine tool gearbox, can improve the area of contact of steel sheet and friction disc, required brake pressure diminishes, does benefit to reducing wear, prolongs the life-span of friction disc, and does not receive weather interference, and brake performance is stable.
For solving the technical problem, the utility model discloses a following technical scheme:
a parking brake for an engineering machinery gearbox comprises a brake seat, wherein the brake seat is arranged on the gearbox, an installation cavity is arranged in the brake seat, the installation cavity is provided with an opening end, and an end cover is arranged at the opening end; the mounting cavity is internally provided with steel sheets and friction plates which are alternately arranged;
the main body of the brake seat is provided with a rotating shaft in a penetrating mode, the rotating shaft enables the steel sheet and the friction sheet to axially move, two ends of the rotating shaft are rotatably connected with the brake seat, the middle of the rotating shaft is located in an installation cavity of the brake seat, two sides of the main body of the rotating shaft are respectively provided with an elongated slot, and the bottom of each elongated slot is provided with a plane.
According to an optimized scheme, a plurality of clamping grooves which are circumferentially distributed are arranged on the inner wall of the brake seat.
Furthermore, steel sheet and friction disc are the loop configuration, have a plurality of joint archs around the steel sheet, and the joint arch of steel sheet cooperatees with the draw-in groove of brake seat inner wall.
Furthermore, the inner ring of the friction plate is provided with meshing teeth.
Furthermore, a flange is arranged at the axis of the brake seat in a penetrating manner, and the flange consists of a sleeve part and a flange part which are coaxially arranged.
Further, the axis of the rotating shaft is perpendicular to the axis of the flange.
Furthermore, the inner surface of the sleeve part is provided with an internal spline, and the sleeve part is connected with an output shaft of the gearbox through the internal spline.
Furthermore, the outer surface of one end, close to the flange part, of the sleeve part is provided with an external spline, and the external spline is in meshed connection with meshing teeth of the inner ring of the friction plate.
Furthermore, one end of the rotating shaft is fixedly connected with the rocker arm, a pull wire hole is formed in the rocker arm, and the rocker arm is connected with a pull wire through the pull wire hole.
Furthermore, a return torsion spring is sleeved on the end part of the rotating shaft close to the rocker arm, one leg of the return torsion spring is supported on the rocker arm, and the other leg of the return torsion spring is supported on the brake seat; and a snap spring is arranged at the end part of the rotating shaft far away from the rocker arm.
The utility model adopts the above technical scheme after, compare with prior art, have following advantage:
the utility model has the advantages that the steel sheets and the friction plates are arranged alternately, the steel sheets and the friction plates are of annular structures, the contact area of the steel sheets and the friction plates is large, the required brake pressure is reduced, the abrasion is reduced, and the service life of the friction plates is prolonged; the friction plate in the utility model is arranged in the brake seat in a sealing way, which has the advantages of no weather interference and stable brake performance; the utility model has the advantages of simple structure, easily realize, make things convenient for going on of later stage maintenance and maintenance work.
The present invention will be described in detail with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic view of the overall structure of the present invention at another angle;
fig. 3 is an exploded view of the present invention;
fig. 4 is an exploded view of the present invention at another angle;
fig. 5 is a structural sectional view of the present invention.
In the figure, 1-brake seat, 11-installation cavity and 12-clamping groove; 2-end cap; 3-steel sheet; 4-friction plate, 41-meshing tooth; 5-flange, 51-sleeve portion, 52-flange portion, 53-internal spline, 54-external spline; 6-rotating shaft, 61-long groove; 7-a rocker arm; 8-return torsion spring.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1-5, the utility model provides a parking brake for engineering machine tool gearbox, including brake seat 1, brake seat 1 installs on the gearbox, and 1 inside installation cavity 11 that is equipped with of brake seat, installation cavity 11 have the open end, and open end department is equipped with end cover 2, and end cover 2 passes through bolt fixed connection with brake seat 1.
The inner wall of the brake seat 1 is provided with a plurality of clamping grooves 12 which are distributed circumferentially.
The steel sheets 3 and the friction plates 4 which are alternately arranged are arranged in the mounting cavity 11, and the number of the steel sheets 3 and the number of the friction plates 4 are two.
The inner ring of the friction plate 4 is provided with meshing teeth 41.
The axial center of the brake base 1 is provided with a flange 5 in a penetrating way, and the flange 5 consists of a sleeve part 51 and a flange part 52 which are coaxially arranged.
The sleeve portion 51 is provided with internal splines 53 on its inner surface, and the sleeve portion 51 is connected to the output shaft of the gearbox by the internal splines 53.
The outer surface of the sleeve part 51 near one end of the flange part 52 is provided with an external spline 54, the external spline 54 is meshed with the meshing teeth 41 of the inner ring of the friction plate 4, and the sleeve part 51 and the friction plate 4 rotate synchronously.
The main body of the brake base 1 is provided with a rotating shaft 6 in a penetrating mode, two ends of the rotating shaft 6 are rotatably connected with the brake base 1, the middle of the rotating shaft 6 is located in an installation cavity 11 of the brake base 1, and the axis of the rotating shaft 6 is perpendicular to the axis of the flange 5.
Elongated grooves 61 are respectively arranged on two sides of the main body of the rotating shaft 6, a plane is arranged at the bottoms of the elongated grooves 61, through the arrangement of the elongated grooves 61, the rotating shaft 6 cannot extrude the steel sheet 3 in a non-rotating state, and the rotating shaft 6 can extrude the steel sheet 3 in a rotating state, so that the steel sheet 3 and the friction plate 4 are tightly attached to each other.
One end of the rotating shaft 6 is fixedly connected with the rocker arm 7, a pull wire hole is formed in the rocker arm 7, the rocker arm 7 is connected with a pull wire through the pull wire hole, and the rocker arm 7 drives the rotating shaft 6 to rotate synchronously.
A return torsion spring 8 is sleeved on the end part of the rotating shaft 6 close to the rocker arm 7, one leg of the return torsion spring 8 is supported on the rocker arm 7, the other leg of the return torsion spring 8 is supported on the brake seat 1, and the rotated rocker arm 7 and the rotating shaft 6 realize return through the return torsion spring 8; the end part, far away from the rocker arm 7, of the rotating shaft 6 is provided with a clamp spring which has a blocking function and prevents the rotating shaft 6 from falling off.
The utility model discloses a concrete theory of operation:
the brake base 1 is arranged on the gearbox, and a flange 5 in the brake base 1 is connected with an output shaft of the gearbox through a spline. When braking is needed, the pull wire applies force to drive the rocker arm 7 to rotate and further drive the rotating shaft 6 to rotate, the rotating shaft 6 can extrude the steel sheet 3 in the rotating process, so that the steel sheet 3 and the friction sheet 4 are tightly attached in the axial moving process, and the rotating flange 5 is stopped by friction force; when the brake is released, the rocker arm 7 and the rotating shaft 6 are returned through the return torsion spring 8.
The utility model has the advantages that the steel sheets and the friction plates are arranged alternately, the steel sheets and the friction plates are of annular structures, the contact area of the steel sheets and the friction plates is large, the required brake pressure is reduced, the abrasion is reduced, and the service life of the friction plates is prolonged; the friction plate in the utility model is arranged in the brake seat by sealing, which has the advantages of no weather interference and stable brake performance; the utility model has the advantages of simple structure, easily realize, make things convenient for going on of later stage maintenance and maintenance work.
The foregoing is illustrative of the best mode of the invention, and details not described herein are within the common general knowledge of a person of ordinary skill in the art. The protection scope of the present invention is subject to the content of the claims, and any equivalent transformation based on the technical teaching of the present invention is also within the protection scope of the present invention.
Claims (10)
1. The utility model provides a parking brake for engineering machine tool gearbox which characterized in that: the brake device comprises a brake seat (1), wherein the brake seat (1) is arranged on a gearbox, an installation chamber (11) is arranged in the brake seat (1), the installation chamber (11) is provided with an opening end, and an end cover (2) is arranged at the opening end; the mounting chamber (11) is internally provided with steel sheets (3) and friction plates (4) which are alternately arranged;
the brake device is characterized in that a rotating shaft (6) penetrates through a main body of the brake seat (1), the steel sheet (3) and the friction sheet (4) are axially moved by the rotating shaft (6), two ends of the rotating shaft (6) are rotatably connected with the brake seat (1), the middle of the rotating shaft (6) is located in an installation cavity (11) of the brake seat (1), two sides of the main body of the rotating shaft (6) are respectively provided with an elongated slot (61), and the bottom of each elongated slot (61) is provided with a plane.
2. The parking brake for the engineering machinery gearbox as claimed in claim 1, characterized in that: the inner wall of the brake seat (1) is provided with a plurality of circumferentially distributed clamping grooves (12).
3. The parking brake for the engineering machinery gearbox according to claim 2, characterized in that: steel sheet (3) and friction disc (4) are the loop configuration, and it is protruding that there are a plurality of joints around steel sheet (3), and the joint arch of steel sheet (3) cooperatees with draw-in groove (12) of brake seat (1) inner wall.
4. The parking brake for the engineering mechanical gearbox according to claim 1, characterized in that: and the inner ring of the friction plate (4) is provided with meshing teeth (41).
5. The parking brake for the engineering mechanical gearbox according to claim 4, characterized in that: the axle center of the brake seat (1) is provided with a flange (5) in a penetrating way, and the flange (5) consists of a sleeve part (51) and a flange part (52) which are coaxially arranged.
6. The parking brake for the engineering machinery gearbox according to claim 5, characterized in that: the axis of the rotating shaft (6) is vertical to the axis of the flange (5).
7. The parking brake for the engineering machinery gearbox according to claim 5, characterized in that: the inner surface of the sleeve part (51) is provided with an internal spline (53), and the sleeve part (51) is connected with an output shaft of the gearbox through the internal spline (53).
8. The parking brake for the engineering machinery gearbox according to claim 5, characterized in that: the outer surface of one end, close to the flange part (52), of the sleeve part (51) is provided with an external spline (54), and the external spline (54) is meshed with the meshing teeth (41) of the inner ring of the friction plate (4).
9. The parking brake for the engineering machinery gearbox as claimed in claim 1, characterized in that: one end of the rotating shaft (6) is fixedly connected with the rocker arm (7), a pull wire hole is formed in the rocker arm (7), and the rocker arm (7) is connected with a pull wire through the pull wire hole.
10. The parking brake for the engineering mechanical transmission, according to claim 9, characterized in that: a return torsion spring (8) is sleeved on the end part of the rotating shaft (6) close to the rocker arm (7), one leg of the return torsion spring (8) is supported on the rocker arm (7), and the other leg of the return torsion spring (8) is supported on the brake seat (1); and a snap spring is arranged on the end part of the rotating shaft (6) far away from the rocker arm (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222352598.3U CN217842458U (en) | 2022-09-05 | 2022-09-05 | Parking brake for engineering machinery gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222352598.3U CN217842458U (en) | 2022-09-05 | 2022-09-05 | Parking brake for engineering machinery gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217842458U true CN217842458U (en) | 2022-11-18 |
Family
ID=84015356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222352598.3U Active CN217842458U (en) | 2022-09-05 | 2022-09-05 | Parking brake for engineering machinery gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217842458U (en) |
-
2022
- 2022-09-05 CN CN202222352598.3U patent/CN217842458U/en active Active
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| GR01 | Patent grant |