CN210196326U

CN210196326U - Brake and brake transmission system with same

Info

Publication number: CN210196326U
Application number: CN201921052947.1U
Authority: CN
Inventors: Rongwang Zhang; 张荣旺
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-07-09
Filing date: 2019-07-08
Publication date: 2020-03-27
Anticipated expiration: 2029-07-08
Also published as: CN110307274A

Abstract

The application discloses stopper and have braking transmission system of this stopper sets up between transmission shaft and final drive ware, including brake disc and braking calliper, brake disc and final drive ware's input shaft fixed connection, and final drive ware's one side and transmission shaft fixed connection are kept away from to the brake disc, and when this stopper was in non-braking state, guarantee the normal transmission between transmission shaft and the final drive ware's the input shaft. The extrusion force between the friction plate and the side face of the brake disc is controlled, the friction force between the friction plate and the brake disc is utilized to carry out deceleration braking on the brake disc, and then braking on a vehicle is achieved. When the brake arranged at the wheel hub on the vehicle body fails, the brake of the vehicle can be realized through the brake arranged between the transmission shaft and the input shaft of the main speed reducer, and the secondary safety protection of the vehicle brake is realized.

Description

Brake and brake transmission system with same

Technical Field

The utility model relates to a vehicle braking system technical field especially relates to a stopper and have braking transmission system of this stopper.

Background

With the development of society, motor tricycles are becoming an important vehicle. The brake is especially important for ensuring the traffic safety of the motor tricycle in the driving process. The existing three-wheeled motorcycle only carries out braking through friction force by installing a brake on a wheel hub. If water is accumulated on the mountain road in rainy days, slurry enters the brake to promote the brake pad to be softened, so that the abrasion failure is caused; or when the braking performance of the vehicle is insufficient due to the fact that the vehicle runs on a mountain road and a steep slope, the effect of low-speed gear dragging by utilizing power is poor, and the engine can be seriously damaged; when the traffic is changeable, and the vehicle runs at high speed, the potential safety hazard can be caused due to poor braking.

Therefore, how to solve the problem that the safety brake of the vehicle cannot be ensured when the brake fails because the existing motor tricycle can only rely on one brake to brake, so that the potential safety hazard exists, and the problem becomes an important technical problem to be solved by technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

To overcome, at least to some extent, the problems in the related art, the present application provides a brake and a brake transmission system having the same.

A first aspect of the present application provides a brake, provided between a transmission shaft and a final drive, including: the brake disc is fixedly connected with the input shaft of the main speed reducer, and one side, far away from the main speed reducer, of the brake disc is fixedly connected with the transmission shaft; the brake caliper comprises a caliper body, two friction plates and a piston, wherein the caliper body is internally provided with a containing cavity for the brake disc to stretch into, the two friction plates are respectively arranged in the containing cavity and are positioned on two sides of the brake disc, the piston is used for pushing the friction plates to be close to or far away from the surface of the brake disc, a piston cavity and a brake fluid inlet and outlet which are communicated with the piston cavity and are used for being communicated with an external hydraulic system are arranged in the caliper body, the piston is arranged in the piston cavity, the caliper body is fixedly connected with a shell of the main speed reducer, and the piston is fixedly connected with one side, far away from the brake.

Preferably, one side of the brake disc close to the main speed reducer is provided with a first connecting support, the first connecting support is rotatably connected with the brake disc, and the first connecting support is fixedly connected with a shell of the main speed reducer.

Preferably, a support frame is fixedly arranged on a shell of the main speed reducer, and the first connecting support is fixedly connected with the support frame through a bolt.

Preferably, a second connecting support is fixedly arranged on the outer side wall of the clamp body, and the second connecting support is fixedly connected with the support frame through a bolt.

Preferably, a fixing plate is fixedly arranged on one side, close to the transmission shaft, of the brake disc, and the fixing plate is fixedly connected with the transmission shaft through a bolt.

Preferably, the brake disc with adopt the key-type connection between main reducer's the input shaft, the central point department of putting of fixed plate is provided with the splined hole, be provided with the external splines on main reducer's the input shaft, the brake disc is close to one side of transmission shaft is fixed through axle head lock nut locking.

Preferably, the first connecting bracket, the second connecting bracket and the support frame are all of a plate-shaped structure, the first connecting bracket and the second connecting bracket are both located between the brake disc and the support frame, the upper end of the first connecting bracket is rotatably connected with the brake disc through a bearing, and the second connecting bracket is arranged above the first connecting bracket.

Preferably, a plurality of heat dissipation holes are formed in the brake disc and are uniformly distributed.

The second aspect of the application provides a braking transmission system, including final drive unit, be used for cutting off and transmit the engine output extremely the clutch of final drive unit's power, with the transmission shaft that final drive unit's input shaft transmission is connected and the hydraulic system who has the braking main pump, the transmission shaft with be provided with between the final drive unit as above any one the stopper, the braking fluid export of braking main pump through the braking fluid pipe with the braking fluid is imported and exported and is connected.

Preferably, a brake handle for inputting brake pressure is arranged on the brake main pump.

The technical scheme provided by the application comprises the following beneficial effects:

the application provides a stopper sets up between transmission shaft and final drive ware, including brake disc and braking calliper, brake disc and final drive ware's input shaft fixed connection, and final drive ware's one side and transmission shaft fixed connection are kept away from to the brake disc, and when this stopper is in non-braking state, can guarantee the normal transmission between transmission shaft and final drive ware's the input shaft. The brake caliper comprises a caliper body, wherein a containing cavity for a brake disc to stretch into is formed in the caliper body, two friction discs which are arranged in the containing cavity and located on two sides of the brake disc respectively and a piston used for pushing the friction discs to be close to or far away from the surface of the brake disc are arranged in the containing cavity, a piston cavity is formed in the caliper body, a brake fluid inlet and outlet which is communicated with the piston cavity and used for being communicated with an external hydraulic system is formed in the piston cavity, the piston is arranged in the piston cavity, the caliper body is fixedly connected with a shell of a main speed reducer, the piston and one side, far away from the brake disc, of the friction disc is fixedly connected, the piston is pushed by the pressure of the brake fluid far away from one side of the friction discs through increasing. So set up, the braking is initial, and two friction discs have relative rotation with the brake disc, and along with going on of braking process, the both sides face extrusion contact of two friction discs and brake disc can make the rotational speed of brake disc reduce gradually until brake disc stall through the frictional force between friction disc and the brake disc, makes the input shaft stall with brake disc fixed connection's main reducer, and then the wheel stall of vehicle, has realized the braking to the vehicle. When the brake arranged at the wheel hub on the vehicle body is in failure, the brake of the vehicle can be realized through the brake arranged between the transmission shaft and the input shaft of the main speed reducer, the secondary safety protection of the vehicle brake is realized, and the potential safety hazard is eliminated.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a simplified schematic illustration of a brake according to an embodiment of the present invention;

fig. 2 is a schematic view of the connection between the brake disc, the first connecting bracket and the fixing plate according to the embodiment of the present invention.

Reference numerals:

a transmission shaft-1; a main reducer-2; a brake disc-3; a brake caliper-4; a clamp body-5; a friction plate-6; a piston-7; brake fluid inlet-outlet-8; brake main pump-9; a brake catheter-10; a brake fluid outlet-11; a brake handle-12; a first connecting bracket-13; a support frame-14; a second connecting bracket-15; a fixed plate-16; a bearing-17; and a shaft end locking nut-18.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The purpose of this embodiment is to provide a brake, set up the brake disc with final drive's input shaft fixed connection between transmission shaft and final drive, through the braking of brake caliper to the brake disc, realize the braking to the vehicle, when the brake that sets up on the wheel hub department on the vehicle itself brakes failure, can carry out secondary braking, provides secondary safety protection to the vehicle braking. The object of the present embodiment is also to provide a brake transmission system having such a brake.

Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the scope of the invention described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the invention described in the claims.

Referring to FIG. 1, a schematic diagram of a brake in some exemplary embodiments is shown. The brake provided by this embodiment sets up between transmission shaft 1 and final drive ware 2, including brake disc 3 and brake caliper 4, brake disc 3 and final drive ware 2's input shaft fixed connection, and one side and transmission shaft 1 fixed connection that final drive ware 2 was kept away from to brake disc 3 can guarantee the normal transmission between transmission shaft 1 and the input shaft of final drive ware 2 when this brake is in non-braking state. The brake caliper 4 comprises a caliper body 5, two friction plates 6 and a piston 7, wherein the caliper body 5 is internally provided with a containing cavity for the brake disc 3 to extend into, the two friction plates 6 are respectively arranged in the containing cavity and are positioned at two sides of the brake disc 3, the piston 7 is used for pushing the friction plates 6 to be close to or far away from the surface of the brake disc 3, a piston cavity and a brake fluid inlet and outlet 8 which are communicated with the piston cavity and are communicated with an external hydraulic system are arranged in the caliper body 5, the piston 7 is arranged in, forming a brake cylinder, the clamp body 5 is fixedly connected with the shell of the main reducer 2, the piston 7 is fixedly connected with one side of the friction plate 6 far away from the brake disc 3, by increasing the brake fluid pressure on the side of the piston 7 away from the friction plate 6, the piston 7 is driven by the pressure of the brake fluid to move towards the brake disc 3 until the friction plate 6 contacts the surface of the brake disc 3 and the friction plate 6 has a pressing force with the surface of the brake disc 3.

So set up, the braking is initial, and two friction discs 6 have relative rotation with brake disc 3, and along with going on of braking process, two friction discs 6 and the both sides face extrusion contact of brake disc 3, frictional force through between friction disc 6 and the brake disc 3 can make the rotational speed of brake disc 3 reduce gradually until brake disc 3 stall, make the input shaft stall with the main reducer 2 of brake disc 3 fixed connection, and then the wheel stall of vehicle, realized the braking to the vehicle. When the brake arranged at the wheel hub on the vehicle body is in failure, the brake of the vehicle can be realized through the brake arranged between the transmission shaft 1 and the input shaft of the main speed reducer 2, the secondary safety protection of the vehicle brake is realized, and the potential safety hazard is eliminated.

When the brake is used, as in the case of the brake provided at the wheel hub of the vehicle itself, it is necessary to first disconnect the clutch that controls the power output of the engine, and to cut off the process of power output from the engine to the transmission system, and when the clutch is in the engaged state, the power output from the engine can be transmitted to the final drive 2, and when the clutch is in the disengaged state, the power output from the engine cannot be transmitted to the final drive 2, and at this time, the power transmission process is in the cut-off state.

In this embodiment, be provided with first linking bridge 13 in one side that brake disc 3 is close to final drive unit 2, first linking bridge 13 and final drive unit 2's shell fixed connection, and rotate with brake disc 3 and be connected, brake disc 3 when with final drive unit 2's input shaft fixed connection, through first linking bridge 13 and final drive unit 2's shell fixed connection, first linking bridge 13's existence provides certain support for brake disc 3, is favorable to improving the stability of this stopper.

In implementation, a support frame 14 fixedly connected with the housing of the final drive 2 is arranged on the housing of the final drive 2, and the support frame 14 provides a support and a connection position for installing the brake disc 3, so as to facilitate the fixing of the first connection bracket 13. The support bracket 14 is provided with first bolt holes for fixed connection with the casing of the final drive 2, and the relative positions and the number of the first bolt holes are the same as those of the bolt holes provided at the power input port of the casing of the final drive 2, and are generally 4.

In addition, be provided with the second bolt hole on support frame 14 and first linking bridge 13, through bolt fixed connection between first linking bridge 13 and the support frame 14, the second bolt hole of this junction can set up to 4, and 4 second bolt holes distribute in the both sides of final drive 2 input shaft, and two liang of input shaft symmetry about final drive 2 guarantees the stability of here connection.

In an implementation, in order to realize the fixed connection between the caliper body 5 of the brake caliper 4 and the housing of the main reducer 2, a second connecting bracket 15 is arranged on the outer side wall of the caliper body 5, and the second connecting bracket 15 is fixedly connected with the outer side wall of the caliper body 5. All be provided with the third bolt hole on support frame 14 and second linking bridge 15, through bolt fixed connection between second linking bridge 15 and the support frame 14, the third bolt hole of this junction can set up to 2, and two third bolt holes distribute in the both sides of main reducer 2's input shaft, and the input shaft symmetry about main reducer 2 guarantees the stability of here connection.

Further, be convenient for realize the fixed connection between brake disc 3 and the transmission shaft 1, be provided with fixed plate 16 in one side that brake disc 3 is close to transmission shaft 1, all be provided with the fourth bolt hole that position and quantity correspond on fixed plate 16 and the brake disc 3, the relative position and the quantity of fourth bolt hole are the same with the relative position and the quantity of the bolt hole of transmission shaft 1 tip, all set up to 4 and follow the even symmetric distribution of circumference axial of main reducer 2's input shaft, carry out fixed connection through the bolt between fixed plate 16 and the brake disc 3, a bolt for fixed brake disc 3 and fixed plate 16 passes behind the fourth bolt hole on brake disc 3 and the fixed plate 16 in proper order, pass the bolt hole of transmission shaft 1 tip and lock fixedly through the nut after that.

Since the input shaft of the final drive 2 is provided with the external spline, in practice, a spline hole is provided at the center of the fixed plate 16, and the fixed plate 16 fixedly connected to the brake disk 3 and the input shaft of the final drive 2 are fixed by a key connection to prevent relative rotation between the brake disk 3 and the input shaft of the final drive 2. After the brake disc 3 is sleeved on the input shaft of the main speed reducer 2, the position of the brake disc 3 is locked and fixed through the shaft end locking nut 18, and the brake disc 3 is prevented from moving.

In this embodiment, the first connecting bracket 13, the second connecting bracket 15 and the supporting bracket 14 are all provided in a plate-like structure. The upper end of the first connecting bracket 13 is provided with a bearing 17, the first connecting bracket 13 is fixedly connected with the outer bearing ring, the inner bearing ring can be fixedly connected with the brake disc 3 or the fixing plate 16, the upper end of the first connecting bracket 13 is rotatably connected with the brake disc 3 through the bearing 17, and meanwhile, the stability of the brake disc 3 can be improved due to the existence of the bearing 17. The second connecting bracket 15 is disposed above the first connecting bracket 13, and the first connecting bracket 13 and the second connecting bracket 15 are both located between the brake disc 3 and the support bracket 14 to reduce the axial length of the brake.

It should be noted that, in a specific implementation process, a connecting portion for sleeving the bearing 17 and the brake disc 2 may be disposed on a side of the fixing plate 16 close to the main reducer 2, the spline hole penetrates through the connecting portion, the brake disc 2 is sleeved on the connecting portion of the fixing plate 16 and then fixedly connects the brake disc 2 and the fixing plate 16 through a bolt along an axial direction thereof, then the bearing 17 is sleeved on the connecting portion of the fixing plate 16 and fixedly connects an inner ring of the bearing 17 with the connecting portion of the fixing plate 16, and an input shaft of the main reducer 2 passes through the spline hole of the fixing plate 16 and then is connected with the shaft end locking nut 18, as shown in fig. 2.

In implementation, a plurality of heat dissipation holes are formed in the brake disc 3 and are uniformly distributed. The existence of louvre has increased the area of contact of brake disc 3 with the air on every side, and the air on every side of being convenient for takes away the heat that brake disc 3 produced when braking faster, makes in a large amount of heats can be timely give off the air to avoided the problem that brake disc 3 is heated and is out of shape, reduced the unusual wearing and tearing of brake disc 3 and clutch blocks, increased the life of this stopper.

The embodiment also provides a brake transmission system, which comprises a main speed reducer 1, a clutch used for cutting off and transmitting the power output by an engine to the main speed reducer 2, a transmission shaft 1 in transmission connection with an input shaft of the main speed reducer 2 and a hydraulic system with a brake main pump 9, wherein the brake is arranged between the transmission shaft 1 and the main speed reducer 2, and a brake fluid outlet 11 of the brake main pump 9 is connected with a brake fluid inlet 8 through a brake fluid conduit 10. The brake transmission system comprises two brakes, namely a brake arranged at the position of a vehicle hub in the prior art and a brake arranged between a transmission shaft 1 and a main speed reducer 2, wherein when the brake arranged at the position of the vehicle hub is out of brake, the brake of the vehicle can be realized through the brake arranged between the transmission shaft 1 and the main speed reducer 2, the secondary safety protection of the vehicle brake is realized, and the potential safety hazard is eliminated.

A brake handle 12 used for inputting brake pressure is arranged on a brake main pump 9, a brake fluid outlet 11 of the brake main pump 9 is communicated with a brake fluid inlet and outlet 8 of the brake caliper 4 through a brake fluid guide pipe 10, pressure is input into the brake main pump 9 through operating the brake handle 12, brake fluid in the brake main pump 9 enters an accommodating cavity in the brake caliper 4, located on one side, far away from the friction plate 6, of the piston 7 through the brake fluid guide pipe 10, and therefore the brake fluid pressure on one side, far away from the friction plate 6, of the piston 7 can be increased.

In an embodiment, the brake handle 12 may be a brake handle disposed at a handle of a cab of the vehicle for a driver to handle. The brake handle 12 may also be a brake pedal disposed in a foot pedal of a cab of the vehicle for operation by a driver. When the brake lever 12 is in the form of a brake pedal, the brake pedal here has the same configuration as the brake pedal originally present in the vehicle itself, but the two brake pedals are independent of each other.

The present embodiment also provides a braking method based on the above braking transmission system, wherein the method comprises the steps of: the power output to the main speed reducer by the engine is cut off through the clutch, and then brake fluid is supplied to the piston through the hydraulic system, so that the piston drives the friction plate to press the brake disc, and braking is achieved.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. Brake, characterized by being arranged between a transmission shaft (1) and a final drive (2), comprising:

the brake disc (3) is fixedly connected with an input shaft of the main speed reducer (2), and one side, far away from the main speed reducer (2), of the brake disc (3) is fixedly connected with the transmission shaft (1);

brake caliper (4), including inside have the confession brake disc stretches into hold the pincers body (5) of cavity, two and set up respectively hold the cavity and be located friction disc (6) of brake disc (3) both sides and be used for bulldozing friction disc (6) are close to or keep away from piston (7) on brake disc (3) surface, be provided with the piston chamber in pincers body (5), be linked together with the piston chamber and be used for importing and exporting (8) with the brake fluid that external hydraulic system is linked together, piston (7) set up in the piston chamber, pincers body (5) with the shell fixed connection of main reducer (2), piston (7) with friction disc (6) are kept away from one side fixed connection of brake disc (3).

2. Brake according to claim 1, characterized in that a first connecting bracket (13) is arranged on the side of the brake disc (3) close to the final drive (2), the first connecting bracket (13) being in rotational connection with the brake disc (3), the first connecting bracket (13) being fixedly connected with the housing of the final drive (2).

3. The brake of claim 2, characterized in that a support frame (14) is fixedly arranged on the shell of the final drive (2), and the first connecting bracket (13) is fixedly connected with the support frame (14) through a bolt.

4. The brake of claim 3, characterized in that a second connecting bracket (15) is fixedly arranged on the outer side wall of the caliper body (5), and the second connecting bracket (15) is fixedly connected with the supporting frame (14) through a bolt.

5. The brake of claim 1, characterized in that a fixing plate (16) is fixedly arranged on one side of the brake disc (3) close to the transmission shaft (1), and the fixing plate (16) is fixedly connected with the transmission shaft (1) through bolts.

6. The brake of claim 5, characterized in that the brake disc (3) is in key connection with an input shaft of the main reducer (2), a spline hole is formed in the center of the fixing plate (16), an external spline is formed on the input shaft of the main reducer (2), and one side of the brake disc (3) close to the transmission shaft (1) is locked and fixed through a shaft end locking nut (18).

7. The brake of claim 4, characterized in that the first connecting bracket (13), the second connecting bracket (15) and the support bracket (14) are all plate-like structures, the first connecting bracket (13) and the second connecting bracket (15) are both located between the brake disc (3) and the support bracket (14), the upper end of the first connecting bracket (13) is rotatably connected with the brake disc (3) through a bearing (17), and the second connecting bracket (15) is arranged above the first connecting bracket (13).

8. Brake according to claim 1, characterized in that the brake disc (3) is provided with a plurality of heat dissipation holes, which are evenly distributed.

9. A brake transmission system, characterized by comprising a main speed reducer (1), a clutch for cutting off and transmitting power output by an engine to the main speed reducer (2), a transmission shaft (1) in transmission connection with an input shaft of the main speed reducer (2), and a hydraulic system with a brake main pump (9), wherein a brake according to any one of claims 1-8 is arranged between the transmission shaft (1) and the main speed reducer (2), and a brake fluid outlet (11) of the brake main pump (9) is connected with the brake fluid inlet/outlet (8) through a brake fluid conduit (10).

10. Brake transmission system according to claim 9, characterized in that a brake lever (12) for brake pressure input is provided on the brake main pump (9).