CN210591829U

CN210591829U - Vehicle brake device

Info

Publication number: CN210591829U
Application number: CN201921004524.2U
Authority: CN
Inventors: 范小磊
Original assignee: Automobile Transport Company Juhua Group Corp
Current assignee: Automobile Transport Company Juhua Group Corp
Priority date: 2019-06-30
Filing date: 2019-06-30
Publication date: 2020-05-22
Anticipated expiration: 2029-06-30

Abstract

The utility model relates to a vehicle brake equipment. It has solved the not reasonable scheduling problem inadequately of prior art design, including the sliding seat, the connecting rod, the brake plate rail, the wheel body, the annular groove, two are curved brake block, the activity is equipped with the arc brake block that is located between two brake block and corresponds with the annular groove of the wheel body to the inboard in brake plate rail week, be equipped with the plate rail hole on the brake plate rail, wear to be equipped with the activity body of rod in the plate rail hole, the mounting hole on the sliding seat is worn to locate in activity body of rod upper end, be equipped with elasticity roof pressure structure between the activity body of rod and the brake plate rail, be equipped with stop gear between the activity body of rod and brake. The brake has the advantages that the brake mode of combining the arc-shaped brake block and the brake pad is adopted, the brake effect is good, and the stability is high; the reset structure can effectively avoid the dead locking condition of the brake block.

Description

Vehicle brake device

Technical Field

The utility model belongs to the technical field of the air passenger train equipment, especially, relate to a vehicle brake equipment.

Background

With the development of automobile industry and the continuous promotion of urbanization process in China, the living standard of people is improved, the holding quantity of automobiles is also remarkably increased, the problem of urban road congestion becomes one of important problems restricting urban development, urban internal traffic faces unprecedented pressure, and the serious shortage of road resources becomes a prominent bottleneck blocking urban health development. In all cities, main buses are used as preferentially developed traffic facilities, but the main obstacle of construction is the necessary removal and arrangement due to road widening, overhead track laying and underground excavation. In order to solve the problems of urban road traffic congestion and the like, rail transit as public transport equipment is increasingly developed, and rail transit refers to a type of transportation means or a transportation system in which an operating vehicle needs to run on a specific rail. Common rail traffic includes traditional railways, subways, light rails, and trams, which operate primarily in a wheel-rail operation. The rail transit is as public transport equipment, and its brake subassembly is very important, nevertheless current brake structure still is similar with the brake equipment of most vehicles, just so makes the brake equipment of current rail transit can have some problems, for example, the braking effect is poor, can't in time brake fast, and the stability of brake is poor, appears the dead phenomenon of brake block card even easily.

In order to solve the problems of the prior art, people have long searched for and put forward various solutions. For example, chinese patent document discloses an emergency brake device for a motor vehicle [ application No.: 200720175603.0], the braking device comprises a communicating rotating shaft arranged on the vehicle chassis bridge, a metal braking block with a sharp corner at one end is fixedly arranged on the communicating rotating shaft, a device and a locking device which enable the communicating rotating shaft to generate torque force are also arranged on the communicating rotating shaft, the distance from the top end of the sharp corner on the metal braking block to the rotating center of the communicating rotating shaft is larger than the distance from the rotating center of the communicating rotating shaft to the plane tangent to the outer side surface of the vehicle wheel, and a device which enables the metal braking block to reset is arranged beside the metal braking block.

Although above-mentioned structure has solved the dead problem of current vehicle brake equipment brake block card to a certain extent, this scheme still has some problems, for example can't carry out quick brake, and brake stability is relatively poor.

Disclosure of Invention

The utility model aims at the above-mentioned problem, a vehicle brake equipment that simple structure is reasonable, and braking effect is good, stability is high is provided.

In order to achieve the above purpose, the utility model adopts the following technical proposal: the vehicle brake device comprises a movable seat, wherein the lower end of the movable seat is fixedly connected with an arc-shaped brake disc frame through a plurality of connecting rods, a wheel body is arranged below the brake disc frame, an annular groove is arranged on the outer side of the circumferential direction of the wheel body, the vehicle brake device is characterized in that the width of a notch of the annular groove gradually decreases to the width of a groove bottom, two brake pads which are arc-shaped and are oppositely and correspondingly arranged are arranged on the inner side of the circumferential direction of the brake disc frame, the two brake pads are respectively provided with brake faces which are oppositely inclined, the brake faces respectively correspond to the side parts of the wheel body, an arc-shaped brake block which is positioned between the two brake pads and corresponds to the annular groove of the wheel body is movably arranged on the inner side of the circumferential direction of the brake disc frame, the width of the arc-shaped brake block is larger than the width of the groove bottom of the annular groove, and, be equipped with the dish frame hole on the brake plate rail, just the dish rail in wear to be equipped with the movable rod body that links to each other and link to each other with the output shaft of driver with arc brake block, movable rod body upper end wear to locate the mounting hole on the sliding seat, just movable rod body and brake plate rail between be equipped with the elasticity roof pressure structure that enables the movable rod body and keep the upward movement trend, be equipped with the stop gear who is used for injecing the downward movement stroke of the movable rod body between the movable rod body and brake plate rail.

In foretell vehicle brake device, the brake plate rail including be curved brake arc seat, brake arc seat both sides be equipped with parallel arrangement each other respectively and all be the flaky brake side seat of arc, the plate rail hole be non-circular and set up in brake arc seat middle part.

In the vehicle brake device, the brake pads are respectively arranged on one corresponding side of the two brake side seats, and the thickness of one side, close to the wheel body, of each brake pad is gradually increased to the thickness of the other side of each brake pad.

In the above vehicle brake device, the elastic pressing structure includes a rod limiting portion disposed at a position, on the movable rod, outside the circumference of one end of the movable seat, and the movable rod is sleeved with a pressing spring, one end of the pressing spring acts on the rod limiting portion, and the other end acts on the circumferential outer side surface of the brake disc frame.

In the vehicle brake device, the limiting mechanism comprises a stroke limiting part which is arranged on the circumferential outer side of one end, close to the arc-shaped brake block, of the movable rod body and is located on the circumferential periphery of the jacking spring, the stroke limiting part is not in contact with the jacking spring, and the lower end of the stroke limiting part is located above the disc rack hole and is abutted against the circumferential outer side of the brake disc rack.

In the vehicle brake device, the distance between the stroke limiting part and the arc-shaped brake block is larger than the thickness of the brake arc-shaped seat.

In the above vehicle brake device, the top pressure spring is formed by winding an elastic wire rod with a rectangular cross section.

In foretell vehicle brake device, the quantity of connecting rod be four, just connecting rod upper end all fixed the setting at the sliding seat lower extreme, the connecting rod lower extreme link to each other with the body of rod connecting seat that sets up on the arc seat of braking respectively.

Compared with the prior art, the utility model has the advantages of: the device adopts a braking mode of combining the arc-shaped brake block and the brake pad, the arc-shaped brake block firstly brakes with the arc-shaped groove of the wheel body, then the brake pad contacts with the side surface of the wheel to brake, the installation position between the two groups of brake structures is reasonably distributed, the relative motion is reliable, the braking effect is good, and the stability is high; the reset structure can effectively avoid the dead locking condition of the brake block.

Drawings

FIG. 1 is a sectional view of the structure of the present invention;

FIG. 2 is an exploded view of the local structure of the present invention;

FIG. 3 is a schematic view of a partial structure of the present invention;

in the figure, the movable seat 1, the connecting rod 11, the rod body connecting seat 111, the mounting hole 12, the brake disc frame 2, the disc frame hole 21, the brake arc-shaped seat 22, the brake side seat 23, the wheel body 3, the annular groove 31, the brake pad 4, the brake surface 41, the arc-shaped brake block 5, the movable rod body 6, the elastic jacking structure 7, the rod body limiting part 71, the jacking spring 72 and the stroke limiting part 8 are shown.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-3, the vehicle brake device includes a movable seat 1, a lower end of the movable seat 1 is fixedly connected to an arc-shaped brake disc frame 2 through a plurality of connecting rods 11, preferably, four connecting rods 11 are provided, upper ends of the connecting rods 11 are fixedly disposed at a lower end of the movable seat 1, and lower ends of the connecting rods 11 are respectively connected to rod body connecting seats 111 disposed on a brake arc-shaped seat 22. Wherein, a wheel body 3 is arranged below the brake disc rack 2, an annular groove 31 is arranged at the circumferential outer side of the wheel body 3, the width of the notch of the annular groove 31 is gradually reduced to the width of the groove bottom, two brake pads 4 which are arc-shaped and are oppositely and correspondingly arranged are arranged at the circumferential inner side of the brake disc rack 2, the two brake pads 4 are respectively provided with brake faces 41 which are oppositely and obliquely arranged, the brake faces 41 respectively correspond to the side parts of the wheel body 3, an arc-shaped brake block 5 which is positioned between the two brake pads 4 and corresponds to the annular groove 31 of the wheel body 3 is movably arranged at the circumferential inner side of the brake disc rack 2, the width of the arc-shaped brake block 5 is larger than the width of the groove bottom of the annular groove 31, the width of the arc-shaped brake block 5 is smaller than the width of the notch of the annular groove 31, a disc rack hole 21 is arranged on the brake disc rack 2, and a movable rod, the upper end of the movable rod body 6 is arranged in a mounting hole 12 on the movable seat 1 in a penetrating manner, an elastic jacking structure 7 which can enable the movable rod body 6 to keep an upward movement trend is arranged between the movable rod body 6 and the brake disc frame 2, and a limiting mechanism which is used for limiting the downward movement stroke of the movable rod body 6 is arranged between the movable rod body 6 and the brake disc frame 2. In this embodiment, when the driver drives the movable rod body 6 and overcomes the elasticity downward movement of the elastic jacking structure 7, the arc-shaped brake block 5 moves downward, the two sides of the arc-shaped brake block 5 respectively contact with the inner side surface of the annular groove 31 to generate the effect of preliminary braking, and when the movable rod body 6 continues to move downward, the limiting mechanism enables the movable rod body 6 to be incapable of continuing to move downward, so that the whole movable seat 1 and the brake disc rack 2 move downward together to enable the brake block 4 to respectively contact with the side surface of the wheel body 3 to form the effect of secondary braking.

Specifically, the brake disc frame 2 includes an arc-shaped brake arc-shaped seat 22, brake side seats 23 which are parallel to each other and arc-shaped sheet-shaped are respectively arranged on two sides of the brake arc-shaped seat 22, and the disc frame hole 21 is non-circular and is arranged in the middle of the brake arc-shaped seat 22. The brake pads 4 are respectively arranged on one corresponding side of the two brake side seats 23, and the thickness of one side, close to the wheel body 3, of the brake pad 4 is gradually increased to the thickness of the other side.

The elastic pressing structure 7 in this embodiment includes a rod limiting portion 71 disposed at a circumferential outer side of the movable rod 6 near one end of the movable seat 1, and a pressing spring 72 is sleeved on the movable rod 6, one end of the pressing spring 72 acts on the rod limiting portion 71, and the other end acts on a circumferential outer side surface of the brake disc frame 2. The pressure spring 72 is preferably formed by winding an elastic wire having a rectangular cross section. When the driver does not work, the jacking spring 72 enables the movable rod body 6 to move upwards quickly, so that the arc-shaped brake block 5 is prevented from resetting quickly, and the phenomenon of blocking is not easy to occur.

Preferably, the limiting mechanism comprises a stroke limiting part 8 which is arranged on the circumferential outer side of one end, close to the arc-shaped brake block 5, of the movable rod body 6 and is located on the circumferential periphery of the jacking spring 72, the stroke limiting part 8 is not in contact with the jacking spring 72, and the lower end of the stroke limiting part 8 is located above the brake disc frame hole 21 and is abutted against the brake disc frame 2. Preferably, the distance between the travel limiter 8 and the arc brake block 5 is larger than the thickness of the brake arc seat 22. When the movable rod body 6 moves downwards, the stroke limiting part 8 is abutted against the outer side of the brake arc-shaped seat 22 so that the brake arc-shaped seat cannot move continuously, and therefore the driver pushes the whole movable seat 1 and the brake disc rack 2 to move downwards.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the movable seat 1, the connecting rod 11, the rod body connecting seat 111, the mounting hole 12, the brake disc frame 2, the disc frame hole 21, the brake arc-shaped seat 22, the brake side seat 23, the wheel body 3, the annular groove 31, the brake pad 4, the brake surface 41, the arc-shaped brake block 5, the movable rod body 6, the elastic pressing structure 7, the rod body limiting portion 71, the pressing spring 72, the stroke limiting portion 8, etc. are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. A vehicle brake device comprises a movable seat (1), wherein the lower end of the movable seat (1) is fixedly connected with a brake disc rack (2) in an arc shape through a plurality of connecting rods (11), a wheel body (3) is arranged below the brake disc rack (2), an annular groove (31) is formed in the circumferential outer side of the wheel body (3), the vehicle brake device is characterized in that the width from the notch of the annular groove (31) to the width of the groove bottom is gradually reduced, two brake pads (4) which are in an arc shape and are oppositely and correspondingly arranged are arranged on the circumferential inner side of the brake disc rack (2), the two brake pads (4) are respectively provided with brake faces (41) which are oppositely inclined, the brake faces (41) respectively correspond to the side parts of the wheel body (3), and arc-shaped brake blocks (5) which are positioned between the two brake pads (4) and correspond to the annular groove (31) of the wheel body (3) are movably arranged on the circumferential inner side of the brake disc rack (2), the width size of arc brake block (5) be greater than the tank bottom width size of annular groove (31) and the width size of arc brake block (5) be less than the notch width size of annular groove (31), be equipped with dish frame hole (21) on brake plate rail (2), just dish frame hole (21) in wear to be equipped with the activity body of rod (6) that link to each other and link to each other with the output shaft of driver with arc brake block (5), activity body of rod (6) upper end wear to locate mounting hole (12) on movable seat (1) in, just activity body of rod (6) and brake plate rail (2) between be equipped with and enable the activity body of rod (6) and keep the elasticity roof pressure structure (7) of upward movement trend, be equipped with between the activity body of rod (6) and brake plate rail (2) and be used for injecing the stop gear of the downward motion stroke of the activity body of rod (6).

2. The vehicle brake device according to claim 1, wherein the brake disc holder (2) comprises an arc-shaped brake arc-shaped seat (22), two sides of the brake arc-shaped seat (22) are respectively provided with brake side seats (23) which are arranged in parallel and are in arc-shaped sheet shapes, and the disc holder hole (21) is non-circular and is arranged in the middle of the brake arc-shaped seat (22).

3. The vehicle brake device according to claim 2, wherein the brake pads (4) are respectively arranged on one corresponding side of the two brake side seats (23), and the thickness of the brake pads (4) on one side close to the wheel body (3) is gradually increased to the thickness of the brake pads on the other side.

4. The vehicle brake device according to claim 2 or 3, wherein the elastic pressing structure (7) comprises a rod body limiting portion (71) arranged on the circumferential outer side of one end of the movable rod body (6) close to the movable seat (1), a pressing spring (72) is sleeved on the movable rod body (6), one end of the pressing spring (72) acts on the rod body limiting portion (71), and the other end of the pressing spring acts on the circumferential outer side face of the brake disc frame (2).

5. The vehicle brake device according to claim 4, wherein the limiting mechanism comprises a stroke limiting part (8) which is arranged on the circumferential outer side of one end of the movable rod body (6) close to the arc-shaped brake block (5) and is positioned on the circumferential periphery of the jacking spring (72), the stroke limiting part (8) is not in contact with the jacking spring (72), and the lower end of the stroke limiting part (8) is positioned above the disc frame hole (21) and is abutted against the circumferential outer side of the brake disc frame (2).

6. The vehicle brake device according to claim 5, wherein the distance between the travel limiting part (8) and the arc-shaped brake block (5) is larger than the thickness of the brake arc-shaped seat (22).

7. The vehicle brake device according to claim 4, wherein the top pressure spring (72) is formed by winding an elastic wire having a rectangular cross section.

8. The vehicle brake device according to claim 2, wherein the number of the connecting rods (11) is four, the upper ends of the connecting rods (11) are fixedly arranged at the lower end of the movable seat (1), and the lower ends of the connecting rods (11) are respectively connected with the rod body connecting seats (111) arranged on the brake arc-shaped seat (22).