WO2017092666A1

WO2017092666A1 - Brake clamp device and vehicle using brake clamp device

Info

Publication number: WO2017092666A1
Application number: PCT/CN2016/107943
Authority: WO
Inventors: 雷国伟; 杜利清; 苟青炳; 鲍春光; 王睿文; 伍安旭; 曾梁彬; 王永胜; 梅桌民
Original assignee: 中车戚墅堰机车车辆工艺研究所有限公司; 常州中车铁马科技实业有限公司
Priority date: 2015-11-30
Filing date: 2016-11-30
Publication date: 2017-06-08
Also published as: CN109073001B; CN109073001A

Abstract

Disclosed is a brake clamp device, comprising a clamp body mechanism (2) and an oil cylinder (1). The clamp body mechanism (2) comprises: a first plate-like clamp body (22), a second plate-like clamp body (23) and a pair of brake linings, wherein the first plate-like clamp body (22) and the second plate-like clamp body (23) are arranged approximately symmetrically in parallel in the left-right direction, and are fixedly mounted together via a connector therebetween. The oil cylinder (1) is fixedly mounted on the outer side of the first plate-like clamp body (22) / the second plate-like clamp body (23); an adjustment shaft (6) of the oil cylinder (1) can penetrate the first plate-like clamp body (22) / the second plate-like clamp body (23) to directly output a braking force to any brake lining (24) of the pair of brake linings; and the oil cylinder (1) is a passive oil cylinder. Further provided is a vehicle comprising the brake clamp device. The brake clamp device has a simple and compact structure and a small volume.

Description

Brake clamp device and vehicle using the brake clamp device

Technical field

The invention belongs to the technical field of basic braking and relates to a brake clamping device for a railway vehicle.

Background technique

In the field of rail transit technology, the brake force is applied to the brake disc of the vehicle by the brake caliper device to realize the basic brake, wherein the cylinder (ie brake cylinder) in the brake caliper device is used for output system. power.

According to the working mode, the brake caliper device can be divided into an active brake caliper device and a passive brake caliper device. Most of the existing rail transit vehicles use an active brake clamp device, which is relieved when the cylinder is oiled and braked and drained, but the brake clamp device is oil during operation. Once the road fails, the brake cannot be completed, which is very unsafe.

For the passive brake caliper device, it is used to relieve and discharge the oil when the oil is discharged. However, the existing passive brake caliper device also has the following disadvantages:

First, since the energy storage stroke inside the cylinder of the brake caliper device is limited, the gap adjustment mechanism must generally be used in the cylinder, but the conventional gap adjustment mechanism is prone to failure for the brake caliper device used in a high-speed environment. Its complex internal structure also makes maintenance quite cumbersome;

Second, the shape of the caliper mechanism and the shape of the cylinder block of the conventional passive brake caliper device are generally complicated (for example, the brake force is transmitted indirectly by using a lever mechanism), and the assembly is difficult, and it is very unsuitable for relatively large installation space. For small vehicle applications, for example, on existing low-floor tram vehicles, the existing passive brake caliper device is difficult to install on a longitudinally coupled bogie with a very small installation space;

Third, the main body of the existing caliper mechanism of the passive brake caliper device is generally formed by casting, has low strength, and can only be used for braking in a low-speed environment, and is also easy to use in a high-speed environment when in use. There is a yaw between the brake discs.

In view of this, it is necessary to propose a new type of passive brake caliper device suitable for installation in a small installation space.

Summary of the invention

In order to solve at least one aspect of the above problems, the present invention provides a brake caliper device, which mainly includes a caliper mechanism and a cylinder mounted on the caliper mechanism for outputting a braking force; the caliper mechanism includes:

a first plate-shaped caliper body and a second plate-shaped caliper body, wherein the first plate-shaped caliper body and the second plate-shaped caliper body are arranged substantially in parallel in a left-right direction and are fixed by a connecting member therebetween Together;

a pair of shutters located between the first plate-shaped caliper body and the second plate-shaped caliper body and arranged in the left-right direction;

Wherein the cylinder is fixedly mounted on the outer side of the first plate-shaped caliper body/second plate-shaped caliper body, and the adjustment shaft of the oil cylinder can pass through the first plate-shaped caliper body/second plate-shaped caliper body Directly outputting braking force to any of the brake pads of the pair of brake pads;

Wherein, the cylinder is a passive cylinder.

According to still another aspect of the present invention, a vehicle including the brake caliper device of the present invention is provided.

The above features, operations, and corresponding effects of the present invention will become more apparent from the following description and drawings.

DRAWINGS

The above and other objects and advantages of the present invention will be more fully understood from the aspects of the appended claims.

1 is a perspective view of a brake caliper device in accordance with an embodiment of the present invention.

Fig. 2 is a perspective view showing the state of use of the brake caliper device of the embodiment shown in Fig. 1.

Figure 3 is a right side elevational view of the brake caliper assembly of the embodiment of Figure 1.

Figure 4 is a left side elevational view of the brake caliper assembly of the embodiment of Figure 1.

Figure 5 is a front elevational view of the brake caliper apparatus of the embodiment of Figure 1, showing a cross-sectional view taken along line A-A of Figure 4;

Fig. 6 is a right side view of the first plate-shaped caliper body of the caliper mechanism of the brake caliper device of the embodiment shown in Fig. 1.

Fig. 7 is a left side elevational view of the first plate-shaped caliper body of the caliper mechanism of the brake caliper device of the embodiment shown in Fig. 1.

Figure 8 is a second plate-shaped pliers of the caliper mechanism of the brake caliper device of the embodiment shown in Figure 1. The left view of the body.

Fig. 9 is a right side view of the second plate-shaped caliper body of the caliper mechanism of the brake caliper device of the embodiment shown in Fig. 1.

Figure 10 is a cross-sectional view along line B-B of the brake caliper device of the embodiment shown in Figure 5.

Figure 11 is a cross-sectional view of a cylinder of a brake caliper apparatus in accordance with an embodiment of the present invention.

Figure 12 is a rear end view of the cylinder of the brake caliper apparatus in accordance with an embodiment of the present invention.

detailed description

In the following description, for clarity and conciseness of the description, all of the various components shown in the drawings are not described. A number of components are shown in the drawings to provide a fully achievable disclosure of the present invention to those of ordinary skill in the art. Many components are familiar and obvious to those skilled in the art.

The orientation terms used herein are defined based on the orientation in which the brake caliper device is placed in the drawings, and it should be understood that these directional terms are relative concepts that are used for relative description and clarification. It can vary accordingly depending on the change in the orientation in which the brake caliper device is placed.

In all of the figures, the x, y, and z directions are defined for convenience of illustration and clarity, wherein the x direction generally corresponds to the direction of the axis of the brake disc corresponding to the brake caliper device, ie, as defined herein. "Left and right direction", the z direction is the high direction of the caliper mechanism of the brake caliper device, that is, the "up and down direction" defined herein, and the y direction is substantially corresponding to the brake disc corresponding to the brake caliper device. In the direction of the radial direction, the x, y, and z directions are perpendicular to each other. In the placement orientations exemplified in the drawings, "left" corresponds to the positive direction of the x direction, "right" corresponds to the negative direction of the x direction, "up" corresponds to the positive direction of the z direction, and "lower" corresponds to the negative direction of the z direction. .

In the following embodiments, the brake caliper device of the present invention is applied to a rail vehicle having a longitudinally coupled bogie as an example. However, it should be understood that the brake caliper apparatus of the embodiments of the present invention can also be applied to other vehicles having similar operating conditions for basic braking.

As shown in FIGS. 1 to 12, the brake caliper device of the embodiment of the present invention mainly includes an oil cylinder 1 for outputting a braking force, and a caliper mechanism 2 which is a main body of the brake caliper device. Generally, the cylinder 1 has a large volume, and therefore, one of the designs of the brake caliper device of the present application is to reduce the volume of the caliper mechanism 2, thereby reducing the overall volume of the brake caliper device as a whole.

As shown in FIGS. 1 to 10, the caliper mechanism 2 includes a first plate-shaped caliper body 22, a second plate-shaped caliper body 23, and a support plate 27, in this embodiment, a first plate-shaped caliper body 22 and a second plate. The caliper body 23 is a plate-like member which is separated before being assembled by the connecting member such as the support plate 27, and therefore, is easily processed separately, for example, can be formed by a sheet metal having a certain strength, thereby It does not depend on the casting process, and the metal sheet used for processing the plate-shaped caliper body can be subjected to forging treatment, etc., which easily meets the performance requirements of the caliper body, and has low manufacturing cost and flexible processing.

The first plate-shaped caliper body 22 and the second plate-shaped caliper body 23 are arranged substantially in parallel symmetrically to the left and right, and they may have substantially the same shape and structure. The first plate-shaped caliper body 22 and the second plate-shaped caliper body 23 may be substantially in the zy plane where the brake disk 30 is located (ie, corresponding to the parallel between the first plate-shaped caliper body 22 and the second plate-shaped caliper body 23). The center faces are arranged symmetrically about the center, and a joint member like the support plate 27 is provided between them to be fixedly coupled together to form a fixed stable structure.

In an embodiment, the connector comprises a support plate 27 and a set screw as shown in FIGS. 1 and 5, and the support plate 27 is supported between the first plate-shaped caliper body 22 and the second plate-shaped caliper body 23 and Arranged substantially in the x direction, the first set screw 27-1 passes through the first through hole 22-1 provided in the first plate-shaped caliper body 22 and is threadedly connected with the connecting hole 27-4 of the support plate 27, The second set screw 27-1' passes through the first through hole 23-1 of the second plate-shaped caliper body 23 and is screw-connected to the connection hole 27-4 of the support plate 27. The support plate 27 has upper and lower support plates. In this embodiment, the upper support plate 27 and the lower support plate 27 are vertically symmetrically disposed. Therefore, the first plate-shaped caliper body 22 and the second plate-shaped caliper body 23 are also Each of the first plate-shaped caliper bodies 22 is vertically symmetrically disposed with a first through hole 22-1 as shown in FIGS. 6 and 7, and the second plate-shaped caliper body 23 is also vertically symmetrical. A first through hole 23-1 as shown in FIGS. 8 and 9 is provided.

In an embodiment, the first set screw 27-1 and the second set screw 27-1' are respectively fitted with a support plate bushing 27-3, and a support plate bushing 27- of the first set screw 27-1. 3 is located at the abutment of the connecting hole 27-4 of the support plate 27 and the first through hole 22-1 of the first plate-shaped caliper body 22, and the support plate bushing 27-3 of the second set screw 27-1' is located at the support The connection hole 27-4 of the plate 27 is in abutment with the first through hole 23-1 of the second plate-shaped caliper body 23; the support plate bushing 27-3 can prevent the set screw (the first set screw 27-1 and The second set screw 27-1' is damaged by the shearing force between the support plate 27 and the first plate-shaped caliper body 22 and the second plate-shaped caliper body 23, thereby improving the strength of the structure.

Continuing with the mounting of the brake caliper assembly on the bogie as shown in FIGS. 1 through 5, the caliper mechanism 2 includes a mounting bracket 26 and a mounting pin 25 for the kit mount 26. In this embodiment, the caliper mechanism 2 is arranged substantially symmetrically up and down as a whole. Therefore, the upper and lower support plates 27 are respectively provided with upper and lower mounting pins 5, and the upper and lower mounting pins 5 are substantially along The x-direction is disposed in parallel, and each of the mounting pins 25 is provided with a mount 26; the brake caliper device is integrally fixed to the bogie by the upper and lower mounts 26. Preferably, in this embodiment, the second through hole 22-2 of the first plate-shaped caliper body 22 and the second through hole 23-2 of the second plate-shaped caliper body 23 are provided with a mounting pin bushing. 25-1 (shown in FIG. 5), both ends of the mounting pin 25 are supported by the second through hole 22-2 of the first plate-shaped caliper body 22 and the second through hole 23 of the second plate-shaped caliper body 23, respectively. - Two of the two mounting pin bushings 25-1, so that the strength of the joint between the mounting pin 25 and the first plate-shaped caliper body 22 and the second plate-shaped caliper body 23 can be improved, avoiding between them Excessive wear and tear.

In one embodiment, the mounting pins 25 are thin at both ends and thick in the middle, that is, respectively inserted into the two ends of the second through holes 22-2 and 23-2 of the first plate-shaped caliper body 22 and the second plate-shaped caliper body 23, respectively. With a smaller diameter, the intermediate section of the mounting pin 25 has an enlarged diameter, and the mounting seat 26 has a fitting hole and is fitted over the intermediate section of the mounting pin 25. The mounting seat 26 is not fixedly fitted to the mounting pin 25, and is movable in the axial direction on the mounting pin 25 without yaw in the left-right direction with respect to the mounting pin 25 or the plate-shaped caliper body. Therefore, the brake disc 30 without yaw in the yz plane can be well adapted, and is especially suitable for the basic brake of the longitudinally coupled bogie, and is suitable for high speed (for example, the speed is greater than 30-50 rev / sec) (this In the environment, the brake disc 30 is required to have no yaw or yaw, so the brake clamping device is also required to brake without yaw. In particular, the diameter of the set holes of the mounting pin 25 can be designed to substantially correspond to the diameter of the intermediate section of the set of mounting pins 25 (eg, they are substantially equal) so that they are substantially slip-fit-free, thereby It can be achieved that the mount 26 does not yaw left and right with respect to the mounting pin 25.

In an embodiment, the mounting pin 25 is further provided with bellows 29, and the two ends of each bellows 29 are respectively fitted on the end flange of the mounting bracket 26 and the end of the mounting pin bushing 25-1. On the flange; the mounting pin bushing 25-1 provides an end flange for mounting the bellows 29 in this embodiment, which is advantageous in reducing the difficulty in processing the parts of the plate-shaped caliper body. The bellows 29 facilitates dust protection and ensures a smooth axial movement of the mount 26 on the mounting pin 25.

Continuing with FIG. 1 and FIG. 5, the caliper mechanism 2 is further provided with a pair of brake pads. The pair of brake blades are two substantially symmetrically disposed brake pads 24, and the pair of brake blades are mounted through the brake pin shaft 28. Between the first plate-shaped caliper body 22 and the second plate-shaped caliper body 23, the two plate-shaped caliper bodies are arranged substantially parallel to the left and right. Specifically, the inner side of the upper and lower support plates 27 are respectively provided with upper and lower brake pin shafts 28, and the two brake pin shafts 28 are disposed substantially in parallel in the x direction, and each of the brake shoes 24 is simultaneously fitted on the upper side. The lower two brake pin shafts 28 are slidable in the x direction; and the two ends of each of the brake pin shafts 28 are respectively mounted on the third through holes 22-3 of the first plate-shaped caliper body 22 (e.g. 6 and 7) and the third through hole 23-3 of the second plate-shaped caliper body 23 (shown in FIGS. 8 and 9), such that the brake pin shaft 28 is limitedly mounted. Between a plate-shaped caliper body 22 and a second plate-shaped caliper body 23; each of the brake pin shafts 28 is provided with a return spring 28-1 and two brake shoes 24, and the return spring 28-1 is located at the two brake pads Between 24th. Thus, the pair of brake pads are left and right floating structures.

Meanwhile, since the mount 26 is also a left-right floating structure, when, for example, the brake piece 24 on the right side is pushed by the braking force to push the brake disc 30 to the left and is attached to one side of the brake disc 30, the reaction force of the braking force continues to be pushed. The first plate-shaped caliper body 22 and the second plate-shaped caliper body 23 are integrally moved to the right relative to the mounting seat 26 (the mounting seat 26 is fixed relative to the bogie at this time), so that the left and right two brake pieces 24 are close to each other until The brake pad 30 on the left side is also attached to the brake disc 30. Therefore, even if the cylinder 1 is provided correspondingly only on the side of the brake piece 24 on the right side, the brake pads 24 on the left and right sides can simultaneously act on the brake disc 30 under the braking force to generate the brake, and the braking effect can be ensured. After the braking force is removed, the return spring 28-1 returns the shutters 24 on the left and right sides to their original positions.

In one embodiment, as shown in Figure 5, the ram pin 28 has a ram pin flange 28-2 at one end and a circumferential ring groove 28-3 at the other end, with one end of the circumferential ring groove 28-3 from the first The third through hole 22-3 of the plate-shaped caliper body 22 (shown in FIGS. 6 and 7) is inserted and further inserted into the third through hole 23-3 of the second plate-shaped caliper body 23 (as shown in FIG. 8 and FIG. In the case shown in Fig. 9, the limit pin 28-4 is then provided corresponding to the circumferential ring groove 28-3, thereby restricting the shutter pin 28 from moving left and right. Specifically, the limit pin 28-4 can be mounted on the second plate-shaped caliper body 23 and inserted into the circumferential ring groove 28-3.

The respective components of the caliper mechanism 2 of the above embodiment can be basically formed by machining, and the assembly is simple. For example, the shutter 24, the return spring 28-1, and the shutter pin 28 can be first mounted to the first plate-shaped caliper body. After the 22 and the second plate-shaped caliper body 23 are attached, the mounting member 26, the bellows 29, and the mounting pin 25 are mounted on the first plate-shaped caliper body 22 and the second plate-shaped caliper body 23, and finally mounted thereon. The lower support plate 27 is tightened by the set screws 27-1 and 27-1'. Therefore, the structure of the caliper mechanism 2 is not complicated, low in cost, and easy to control.

Further, the caliper mechanism 2 of the above embodiment is designed according to the size of the installation space of the brake caliper device, for example, the height dimension of the plate caliper body and the width dimension of the y direction, and the length dimension of the support plate 27 in the x direction, The spatial size of the caliper mechanism 2 can be roughly determined, and therefore, the size design is flexible, and the downsizing of the overall size of the caliper mechanism 2 is increased, and the size reduction of the caliper mechanism 2 can be easily achieved. Further, in the illustrated embodiment, the caliper mechanism 2 is integrally arranged symmetrically about the center plane between the first plate-shaped caliper body 22 and the second plate-shaped caliper body 23, and the caliper mechanism 2 is generally up and down substantially The symmetrical arrangement facilitates further making the structure of the caliper mechanism 2 more compact and smaller.

Continuing with Figures 1, 5 and 10, in this embodiment, a single cylinder 1 (i.e., a brake cylinder) is used to provide braking force, and a single cylinder 1 is mounted on the outside of either of the two plate-shaped calipers. That is, it can be mounted on either side of the caliper mechanism 2 in the x direction. In this embodiment, a plurality of cylinder mounting holes 22-5 and an adjusting shaft insertion hole 22-4 are provided in the first plate-shaped caliper body 22, and the cylinder 1 passes through the cylinder mounting holes 22-5 in the substantially x direction. It is fixed to the first plate-shaped caliper body 22. When the cylinder 1 is in operation, the adjustment shaft 6 of the cylinder 1 can pass through the adjustment shaft through hole 22-4 and directly transmit the braking force to the right brake piece 24. Among them, the cylinder mounting hole 22-5 is for fixing the cylinder 1 to the caliper mechanism 2, and it should be understood that the cylinder 1 may be fixed to the caliper mechanism 2 by other means.

In this embodiment, the cylinder 1 is a passive cylinder. In this context, a passive cylinder refers to a brake cylinder that is relieved during oil discharge and braked when oil is discharged. Therefore, the brake caliper device formed by it is also a passive brake caliper. In the passive brake caliper of the present invention, the conventional lever mechanism is used to transmit the braking force in the caliper mechanism 2 and the cylinder 1, and on the other hand, the overall structure of the brake caliper device is simple, and on the other hand, the brake caliper is also provided. The overall compactness and volume update of the device is well suited for use on vehicles that provide less installation space, for example, on low floor rail vehicles with longitudinally coupled bogies.

The specific structure of the oil cylinder 1 of the brake caliper device of the embodiment of the present invention will be further described in detail below. Since the cylinder 1 can be mounted on the outer side of the first plate-shaped caliper body 22, it can also be mounted on the outer side of the second plate-shaped caliper body 23, if the internal components of the cylinder 1 are described in terms of "left" and "right" directions. The orientation relationship between the two is easy to cause confusion. Therefore, when describing the internal structure of the cylinder, the term “front” and “rear” are used. The “front” is defined as the direction of the braking force output by the cylinder, and the direction. The opposite direction is defined as "rear", so each component in the cylinder has a corresponding front/rear end, or front/rear side. The sections in Figs. 10 and 11 are each cut along the axial direction of the cylinder.

As shown in FIGS. 10 and 11, the cylinder block 3 of the cylinder 1 includes a front cylinder block 3-1 and a rear cylinder block 3-2, and the front cylinder block 3-1 and the rear cylinder block 3-2 are axially oriented ( That is, in the x direction, the assembly is joined together to form the cylinder 3; the cylinder 3 is provided with a piston 4, a reset piston 5, an adjustment shaft 6, a guide rod 7, a sleeve 8, an elastic member 9, and a spring base 10.

Wherein, the piston 4 is set on the reset piston 5, the rear end of the piston 4 is abutted against the reset piston 5, the piston 4 is used to form a sealing oil chamber, and the reset piston 5 is used to form a further sealing oil chamber, through which the corresponding inlet and outlet oil pipes can be Input or output liquid medium such as oil to any of the above sealed oil chambers. In this embodiment, the piston 4 and the reset piston 5 and the cylinder 13 respectively form respective oil chambers, that is, two oil chambers, one of which can be used for braking system to automatically control the clamping and relief of the clamp, and the other The oil chamber can be used for emergency relief in case of failure; it should be understood that the two oil chambers constructed above can be replaced with each other as necessary to provide redundancy and prevent inoperability due to failure of a single oil chamber seal; it should also be understood that When only one of the two oil chambers constructed above can work normally, the function of the cylinder 1 does not affect, and the two oil chambers can work normally to make the reliability higher.

Continuing with FIG. 10 and FIG. 11, in an embodiment, the front end of the reset piston 5 is provided with a stepped hole 5-1 penetrating in the axial direction, and the adjusting shaft 6 penetrates the stepped hole 5-1 of the reset piston 5 and The front end extends out of the cylinder through the stepped hole 5-1, the rear end of the adjusting shaft 6 is inserted into the sleeve hole 8-1 of the sleeve 8, and is screwed with the sleeve hole 8-1 of the sleeve 8, specifically, A threaded connection can be achieved by a trapezoidal thread between the rear end of the adjustment shaft 6 and the sleeve hole 8-1 of the sleeve 8.

The boss 8 is provided with a boss 8-2, such as an annular boss 8-2, and the front side of the annular boss 8-2 abuts the step 5-1-1 in the stepped hole 5-1 of the reset piston 5; The elastic member 9 is fitted on the outer peripheral surface of the sleeve 8, and the front end of the elastic member 9 abuts against the rear side of the annular boss 8-2 of the sleeve 8, and the rear end of the elastic member 9 abuts against the spring base 10. Thus, the force is transmitted between the reset piston 5 and the elastic member 9 through the annular boss 8-2, and the force of the reset piston 5 and the elastic member 9 can directly act on the annular boss 8-2, thereby acting on the sleeve 8. And the adjustment shaft 6, the work is simple and reliable.

Specifically, the spring base 10 can be fixed to the rear cylinder 3-2 by the first screw 19. The elastic member 9 can be a disc spring or other type of energy storage element. When the elastic member 9 uses the disc spring, it can be better. Store and release energy.

In an embodiment, the guide rod 7 and the adjustment shaft 6 are disposed on substantially the same axis, for example, in the central axial direction of the cylinder 1. The rear end of the adjusting shaft 6 is provided with a guiding hole 6-1, and the front end of the guiding rod 7 is inserted into the guiding hole 6-1 of the adjusting shaft 6, the rear end of the guiding rod 7 and the rear cylinder body 3-2 assembly is connected together.

In an embodiment, the front end of the guide rod 7 inserted into the guide hole 6-1 of the adjustment shaft 6 is correspondingly provided with a bayonet 14 which is located in the guide hole 6-1 of the adjustment shaft 6 and is fitted on the guide rod On the front end of the guide rod 7, the end of the front end of the guide rod 7 is screwed with a third set screw 15 for fixing the bayonet 14, in particular, the set screw 15 is screwed into the threaded hole at the front end of the guide rod 7, tightly The set screw 15 presses the bayonet 14 directly or through a gasket so that the bayonet 14 does not slip out of the corresponding slot in which it is placed.

Continuing with FIG. 10, FIG. 11, and FIG. 12, the cylinder 1 further has a block 11 which is fixed to the rear block 3-2 by the second screw 20, and the block 11 has a hexagonal hole 11-1. The rear end of the guide rod 7 has a hexagonal protrusion 7-1 and protrudes from the rear end surface of the rear cylinder 3-2, and the block 11 is fitted over the guide rod 7 through the hexagonal hole 11-1 opened thereon. The outer hexagonal projection 7-1 of the rear end is fixed by the second screw 20, so that the rotation of the guide rod 7 can be locked by the slider 11, and the guide rod 7 can be prevented from rotating due to vibration or the like when adjustment is not required. It should be noted that the outer hexagonal projection 7-1 of the guide rod 7 serves as a rotating portion of the guide rod 7, and may also be, for example, a rotating portion of another shape.

Continuing with FIG. 12, the cylinder block 3 has a cylinder connecting hole 3-3 penetrating the front cylinder block 3-1 and the rear cylinder block 3-2 in the x direction, and the cylinder connecting screw 3-4 extends through the cylinder connecting hole 3 - 3 is screwed onto the first plate-shaped caliper body 22 of the caliper mechanism 2, so that the front cylinder block 3-1 and the rear cylinder block 3-2 are integrally connected and fixed by a plurality of cylinder connection screws 3-4. On the caliper mechanism 2.

Specifically, the assembly connection between the front cylinder block 3-1 and the rear cylinder block 3-2 can be achieved by any of the following methods: the stepped end face of the front cylinder block 3-1 and the rear cylinder block 3-2 The end face is axially assembled, or the stepped end face of the front block 3-1 is axially assembled with the stepped end face of the rear block 3-2, or the end face of the front block 3-1 and the rear block 3-2 The stepped end faces are axially assembled.

The working principle of the cylinder 1 and its brake caliper device of the above embodiment will be specifically described below with reference to FIGS. 2 and 10.

When the vehicle is started, the oil cylinder 1 is oiled, and the piston 4 moves to the right (ie, backward) under the action of the oil pressure, causing the reset piston 5 to move to the right (ie, backward); due to the annular boss 8 on the sleeve 8 -2 abuts against the step 5-1-1 in the stepped hole 5-1 of the reset piston 5, and the sleeve 8 is also urged to move to the right (i.e., rearward); the movement of the sleeve 8 causes the elastic member 9 to be stressed on the one hand. Compression, on the other hand, the adjustment shaft 6 threadedly connected to the sleeve 8 is also moved to the right (ie backwards); thus, the adjustment shaft 6 no longer resists the brake pad 24, and the left and right brake discs 24 are in the return spring The brake disc 30 is released by the action of 28-1, the rotation of the brake disc 30 is no longer restricted, the braking of the brake disc is relieved or eliminated, and the elastic member 9 in the cylinder 1 is in a compressed state. The above process achieves a relief of braking of the brake disc 30 when the oil is passed.

When the vehicle brakes, the cylinder 1 is drained, and the elastic member 9 which is originally in a compressed state starts to be reset, and by releasing the elastic force to the annular boss 8-2, the sleeve 8 is pushed to the left (ie, forward) to make the shaft The adjusting shaft 6 of the 8-threaded connection also moves to the left (i.e., forward) together, so that the front end of the adjusting shaft 6 directly abuts the right side of the shutter 24 and pushes the right side of the shutter 24 to the left; on the right side After the brake pad 24 abuts against the brake disc 30, the adjustment shaft 6 continues to move to the left (ie, forward) to output the braking force. At this time, the adjustment shaft of the brake cylinder presses the side brake pad, due to the caliper mechanism 2 The floating structure design pushes the brake caliper device from the mounting pin 25 to the mounting bracket 26 (the mounting bracket 26 is fixed to the bogie of the vehicle) to the right, thereby making the left The side brake pads 24 also abut against the brake disc 30; at this time, the left and right side brake discs 24 transmit the braking force together and simultaneously restrict the rotation of the brake disc 30, thereby achieving braking of the brake disc 30. The above process achieves braking of the brake disc 30 when discharging oil.

Continuing with FIGS. 2 and 10, when the brake caliper device is used for a long period of time, the brake pad 24 will have a certain degree of wear and the like, and at this time, even if the adjustment shaft 6 of the cylinder 1 protrudes from the cylinder block 3 The length of the portion is maximized, and the brake pad 24 and the brake disc 30 also have a certain gap, which cannot be normally braked. Therefore, the cylinder 1 needs to be manually adjusted, that is, the brake gap is manually adjusted. At this time, it is necessary to first remove the block 11 to release the rotation restriction of the guide rod 7, and then manually rotate the outer hexagonal protrusion 7-1 at the rear end of the guide rod 7, due to the end of the front end of the guide rod 7 and the third The locking pin 15 is screwed, and the locking pin 14 fitted on the front end of the guiding rod 7 is matched with the guiding hole 6-1 of the adjusting shaft 6, so that the adjusting shaft 6 rotates together with the guiding rod 7; and because the adjusting shaft 6 is The sleeve 8 is screwed and the sleeve 8 cannot be rotated (the elastic member 9 is pressed against the annular boss 8-2 of the sleeve 8 to limit its rotation). At this time, the rotation of the adjustment shaft 6 causes the adjustment shaft 6 and the sleeve The assembly length of 8 is increased, and the length of the portion of the adjustment shaft 6 that protrudes from the cylinder 3 is increased during braking, so that the gap between the brake pad 24 and the brake disc 30 is compensated, and the gap adjustment is realized, that is, the manual mode. Gap adjustment.

The cylinder 1 of the above embodiment is a passive cylinder, and the piston is disposed opposite to the elastic member 9 and located on both sides of the annular boss 8-2 of the sleeve 8. The force can be directly transmitted to the sleeve 8 and transmitted to the adjustment shaft 6, working. Reliable, and the cylinder 1 can also implement the gap adjustment function and the gap adjustment structure is simple (for example, only a set of thread pairs are required between the sleeve 8 and the adjustment shaft 6). Therefore, the cylinder 1 has few internal components, a simple structure, and a small volume.

Further, the brake caliper device of the above embodiment only needs to install one oil cylinder 1 on one side of the caliper mechanism 2, and the adjustment shaft 6 of the oil cylinder 1 directly acts on one of the brake pads 24 of the caliper mechanism 2, and the overall structure is simple. Compact and small. Therefore, it is very suitable for use on a vehicle provided with a small installation space for the brake caliper device, for example, a low-floor light rail vehicle (for example, a tramcar) having a longitudinally coupled bogie. It should of course be understood that the brake caliper device of the embodiments of the present invention is not limited to being mounted on a longitudinally coupled bogie, but may be mounted on other bogies having similar installation requirements or on a vehicle.

The brake caliper device of the above embodiment can be applied to a rail vehicle, such as a low floor light rail vehicle applied to a longitudinally coupled bogie. It should be understood that the brake caliper device of the embodiment of the present invention can also be applied to other vehicles with similar working conditions, such as mine engineering vehicles and the like.

The above examples mainly illustrate the brake caliper device of the present invention and a vehicle using the same. Although only a few of the embodiments of the present invention have been described, it will be understood by those skilled in the art that the invention may be practiced in many other forms without departing from the spirit and scope of the invention. Accordingly, the present invention is to be construed as illustrative and not restrictive, and the invention may cover various modifications without departing from the spirit and scope of the invention as defined by the appended claims With replacement.

Claims

A brake caliper device mainly comprising a caliper mechanism (2) and a cylinder (1) mounted on the caliper mechanism (2) for outputting a braking force;

The caliper mechanism (2) includes:

a first plate-shaped caliper body (22) and a second plate-shaped caliper body (23), wherein the first plate-shaped caliper body (22) and the second plate-shaped caliper body (23) are substantially symmetric in the left-right direction Arranged in parallel and mounted together by connectors between them;

a pair of shutters located between the first plate-shaped caliper body (22) and the second plate-shaped caliper body (23) and arranged in the left-right direction;

Wherein the cylinder (1) is fixedly mounted on the outer side of the first plate-shaped caliper body (22)/second plate-shaped caliper body (23), and the adjustment shaft (6) of the oil cylinder (1) can pass through The first plate-shaped caliper body (22)/second plate-shaped caliper body (23) directly outputs a braking force to any of the brake pads (24) of the pair of brake pads;

Among them, the cylinder (1) is a passive cylinder.
The brake caliper device of claim 1 wherein said pair of brake pads are mounted on a brake pin (28) and each of said brake pads (24) is capable of following said brake pin (28) axial sliding, between the two pieces of the brake pad (24) is provided with a return spring (28-1) fitted on the brake pin (28);

Moreover, the caliper mechanism (2) further includes a mounting seat (26) and a mounting pin (25) for fitting the mounting seat (26), the two ends of the mounting pin (25) are in the left and right direction The upper plate is mounted on the first plate-shaped caliper body (22) and the second plate-shaped caliper body (23), respectively, and the mounting seat (26) is axially slidable on the mounting pin (25).
The brake caliper device according to claim 2, wherein both ends of the mounting pin (25) are supported by the first plate-shaped caliper body (22) and the second plate-shaped caliper body (23), respectively. In the second through holes (22-2, 23-2), the second through holes (22-2, 23-2) are provided with a mounting pin bushing (25-1).
A brake caliper device according to claim 2, wherein said mounting seat (26) does not substantially yaw in the left-right direction when axially sliding on said mounting pin (25).
The brake caliper device according to claim 4, wherein the mounting seat (26) is fitted over the intermediate portion of the mounting pin (25) through a set hole provided thereon, The diameter of the set hole of the mounting pin (25) is substantially equal to the diameter of the intermediate section of the mounting pin (25).
The brake caliper device according to claim 3, wherein a bellows (29) is further disposed between both ends of the mounting pin (25) and the mounting seat (26), Both ends of the bellows (29) are respectively fitted over the end flanges of the mounting seat (26) and the end flanges of the mounting pin bushings (25-1).
A brake caliper apparatus according to claim 1, wherein said connecting member comprises two support plates (27) arranged substantially in parallel, said pair of brakes being located in two parallel said support plates (27) )between.
A brake caliper device according to claim 7, wherein both ends of each of said support plates (27) pass through a first set screw (27-1) and a second set screw (27-, respectively). 1') is fixedly coupled to the first plate-shaped caliper body (22) and the second plate-shaped caliper body (23).
A brake caliper device according to claim 8, wherein said first set screw (27-1) passes through a first through hole provided in said first plate-shaped caliper body (22) ( 22-1) and threadedly connected to the connecting hole (27-4) on the support plate (27); the second set screw (27-1') passes through the second plate-shaped caliper body The first through hole (23-1) of (23) is screwed into the connection hole (27-4) on the support plate (27).
The brake caliper device according to claim 9, wherein said first set screw (27-1) and second set screw (27-1') are respectively provided with a support plate bushing (27). -3), a support plate bushing (27-3) on the first set screw (27-1) is located at a connecting hole (27-4) of the support plate (27) and the first plate shape At the abutment of the first through hole (22-1) of the caliper body (22), the support plate bushing (27-3) on the second set screw (27-1') is located at the support plate (27) The connection hole (27-4) is in contact with the first through hole (23-1) of the second plate-shaped caliper body (23).
The brake caliper device according to claim 1, wherein the first plate-shaped caliper body (22)/second plate-shaped caliper body (23) is provided with an adjustment shaft insertion hole.
The brake caliper device according to any one of claims 1 to 11, wherein the caliper mechanism (2) is integrally related to the first plate-shaped caliper body (22) and the second plate shape The center planes between the caliper bodies (23) are symmetrically arranged, and the caliper body mechanism (2) is integrally arranged substantially symmetrically up and down.
The brake caliper device according to claim 1, characterized in that the cylinder (3) of the cylinder (1) is provided with a reset piston (5), an adjustment shaft (6), a guide rod (7), and a shaft. Set (8) and elastic member (9);

Wherein the adjustment shaft (6), the sleeve (8) and the guide rod (8) are arranged substantially on a central axis of the cylinder (1); the front end of the adjustment shaft (6) projects to the cylinder In addition to the cylinder (3) of (1), the rear end of the adjustment shaft (6) is inserted into the sleeve hole (8-1) of the sleeve (8) and with the sleeve (8) Forming a threaded connection between the sleeve holes (8-1);

Wherein, the sleeve (8) is provided with a boss (8-2), and the front side and the rear side of the boss (8-2) are respectively associated with the reset piston (5) and the elastic member ( 9) The front end is offset.
A brake caliper device according to claim 13, wherein a guide hole (6-1) is opened in a rear end of the adjustment shaft (6), and a front end of the guide rod (7) is inserted into the Adjusting the guide hole (6-1) of the shaft (6) and enabling the adjustment shaft (6) to rotate synchronously with the guide rod (7), and the rear end of the guide rod (7) is provided with a rotation The part is exposed at the rear end of the cylinder (3).
The brake caliper device according to claim 14, wherein the guide rod (7) is rotated in a first direction by acting on the rotating portion to drive the adjusting shaft (6) relative to the center The bushing (8) also rotates in the first direction, resulting in an increase in the assembly length of the adjusting shaft (6) and the bushing (8).
A brake caliper device according to claim 15, wherein said rotating portion is an outer hexagonal projection (7-1); said cylinder (1) further comprising a corresponding hexagonal projection (7-) 1) a card block (11) provided, the card block (11) being detachably fixed to a rear end of the cylinder block (3) to lock an outer hexagonal projection of the guide bar (7) (7) -1) rotation.
A brake caliper device according to claim 13, characterized in that the cylinder (3) of the cylinder (1) is further provided with a piston (4) fitted to the reset piston (5).
The brake caliper device according to claim 13, characterized in that the cylinder (3) of the oil cylinder (1) is further provided with a spring base (10), and the rear end of the elastic member (9) is The spring base (10) abuts and the spring base (10) is fixed to the cylinder (3) by a first screw (19).
A brake caliper device according to claim 13, wherein said cylinder block (3) comprises a front cylinder block (3-1) and a rear cylinder block (3-2), said front cylinder block (3) -1) and the rear cylinder block (3-2) are joined together by assembly to form the cylinder block (3).
A brake caliper device according to claim 19, wherein said cylinder (3) has a cylinder connecting screw (3-4) and passes through said front cylinder (3-1) in the left-right direction And a cylinder connecting hole (3-3) of the rear cylinder block (3-2), the cylinder connecting screw (3-4) penetrating through the cylinder connecting hole (3-3) and screwed to the caliper mechanism ( 2) The first plate-shaped caliper body (22) / the second plate-shaped caliper body (23).
The brake caliper device according to claim 13, characterized in that the rear end of the adjustment shaft (6) is screwed with a trapezoidal thread between the sleeve hole (8-1) of the sleeve (8) .
A brake caliper device according to any one of claims 1 to 11 or 13 to 21, wherein said brake caliper device corresponds to said brake disk being mounted in a longitudinal direction of a low-floor rail vehicle Coupling on the bogie.
A vehicle characterized by using the brake caliper device according to any one of claims 1 to 21.
A vehicle according to claim 23, wherein said vehicle is a low floor rail vehicle having a longitudinally coupled bogie, said brake caliper device being mounted to said longitudinally coupled steering corresponding to said brake disc On the shelf.