Hydraulic brake relieving tool for tramcar

Abstract

The utility model relates to the technical field of tramcar hydraulic brake relieving tools, and discloses a tramcar hydraulic brake relieving tool which comprises a relieving connecting rod, first grooves are formed in the two sides of one end of the relieving connecting rod respectively, and first threaded sleeves are fixedly connected to the inner sides of the two first grooves respectively. The two first threaded sleeves are connected with first threaded columns in a threaded and sleeved mode respectively, the end, away from the relieving connecting rod, of each first threaded column is fixedly connected with a first wrench, and the two first wrenches are symmetrically distributed. In this way, a user does not need to squat under the apron board during relieving operation, relieving force can be applied by two hands together more conveniently, relieving operation can be rapidly completed by standing on the outer side of the apron board, operation is convenient, and use is easy.

Description

TECHNICAL FIELD

[0001] The utility model relates to tramcar hydraulic brake relief tool technical field, especially tramcar hydraulic brake relief tool. BACKGROUND

[0002] Modern tramcar brake is one of important systems of vehicle, and brake type includes electric brake, hydraulic brake and magnetic track brake, and hydraulic brake is main brake type of tramcar, and it adopts passive disc brake driven by hydraulic spring, and it is divided into two modes of stepless controllable and three-level controllable.

[0003] When tramcar hydraulic brake system fails and cannot be relieved normally in the process of main line operation, tramcar can be waked up and has electricity, and can be disposed by electric emergency relief, but tramcar cannot be waked up normally due to other system failure in the process of actual operation, so that electric emergency brake operation cannot be completed, at this moment, emergency rescue measures need to be carried out on tramcar, and the precondition of emergency rescue measures is that hydraulic brake needs to be relieved mechanically, and mechanical relief interface is on brake clamp of bogie at the bottom of vehicle, and mechanical relief work needs to be carried out under skirt due to the limitation of two side skirts, and the required torque of brake relief under three-level controllable mode is not very large, and relief is relatively easy, but the required torque of stepless controllable hydraulic brake relief is large, and in addition, relief operation can only be operated in squatting position under the skirt, so that it is very difficult to exert force, and in most cases, it is very difficult to relieve stepless controllable hydraulic brake even if force lever is used, not only the damage of relief interface parts is caused, but also the time of main line rescue is greatly prolonged, and personnel injury accident is caused due to large torque in relief process, so, in order to relieve tramcar hydraulic brake quickly and effectively, it is very necessary to design and manufacture safe, reliable and fast brake relief tool.

[0004] However, the existing relief method adopts traditional relief wrench, and force lever needs to be used in relief, and the length of force lever is limited by the opening angle of skirt and cannot reach the best length of force, and due to insufficient relief force, torque needs to be applied and rotated many times, and the damage of relief interface parts is caused, in addition, relief action of operator is all under the skirt, and is operated in squatting position, and operation is very inconvenient, and in addition, large torque is caused in relief process when force lever is used, and personnel injury accident is caused, based on this, tramcar hydraulic brake relief tool is provided. UTILITY MODEL CONTENTS

[0005] In order to solve the technical problem of tramcar hydraulic brake relief tool, the utility model provides tramcar hydraulic brake relief tool.

[0006] This utility model is achieved using the following technical solution: a hydraulic brake release tool for a tram, comprising a release connecting rod, wherein a first groove is formed on each of the two sides of one end of the release connecting rod, a first threaded sleeve is fixedly connected to the inner side of each of the two first grooves, and a first threaded post is threadedly fitted onto each of the two first threaded sleeves, and a first wrench is fixedly connected to the end of each first threaded post away from the release connecting rod, the two first wrenches being symmetrically distributed, and a multi-angle wrench mechanism is provided at the end of the release connecting rod away from the first wrench, and a multi-angle wrench mechanism is provided between the multi-angle wrench mechanism and the first wrench.

[0007] As a further improvement to the above solution, the multi-end mechanism includes a No. 3 threaded sleeve fixedly connected to one end of the relief connecting rod, the No. 3 threaded sleeve being threadedly fitted with a No. 3 threaded post, and the end of the No. 3 threaded post away from the No. 1 wrench being fixedly connected to a relief end.

[0008] As a further improvement to the above solution, the relief head has a multi-prism structure, and the relief head cooperates with the hydraulic relief slot on the brake caliper.

[0009] As a further improvement to the above solution, the relief head and the No. 3 threaded sleeve adopt a reverse connection method opposite to the relief direction.

[0010] As a further improvement to the above solution, the multi-angle wrench mechanism includes two grooves respectively opened on both sides of the relief connecting rod, two threaded sleeves are fixedly connected to the inner side of the two grooves respectively, two threaded sleeves are threadedly fitted with two threaded posts respectively, and a wrench is fixedly connected to the end of each threaded post away from the relief connecting rod, and the two wrenches are symmetrically distributed.

[0011] As a further improvement to the above scheme, the straight lines where the two No. 2 wrenches are located are spatially staggered with the straight lines where the two No. 1 wrenches are located.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model allows the length of the relief connecting rod to be adjusted according to different vehicle models and skirt widths, and it can also be replaced separately. This eliminates the need to squat under the skirt for relief operation, and makes it easier to apply relief force with both hands. The relief operation can be quickly completed by standing on the outside of the skirt. It is convenient to operate and easy to use.

[0014] 2. The relief head of this utility model can be disassembled or replaced separately according to the structural features of the hydraulic relief slot on the brake caliper. When it is severely worn due to repeated use, it is not necessary to replace the entire tooling; only the relief head needs to be replaced. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of a hydraulic brake release device for a tram provided by this utility model;

[0016] Figure 2 for Figure 1 Side view;

[0017] Figure 3 for Figure 1 A schematic diagram of the explosion structure.

[0018] Explanation of key symbols:

[0019] 1. Relief connecting rod; 2. No. 1 wrench; 3. No. 2 wrench; 4. Relief ferrule; 5. No. 3 threaded post; 6. No. 3 threaded sleeve; 7. No. 1 threaded post; 8. No. 1 threaded sleeve; 9. No. 2 threaded post; 10. No. 2 threaded sleeve. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0021] Example:

[0022] Please combine Figures 1-3 This embodiment of a tram hydraulic brake release tool includes a release connecting rod 1. A first groove is formed on each side of one end of the release connecting rod 1. A first threaded sleeve 8 is fixedly connected to the inner side of each of the two first grooves. Each of the two first threaded sleeves 8 is threadedly fitted with a first threaded post 7. A first wrench 2 is fixedly connected to the end of each first threaded post 7 furthest from the release connecting rod 1. The two first wrenches 2 are symmetrically distributed. A multi-angle wrench mechanism is provided at the end of the release connecting rod 1 furthest from the first wrench 2. A multi-angle wrench mechanism is provided between the multi-angle wrench mechanism and the first wrench 2.

[0023] Please combine Figure 3 As shown, the multi-head mechanism includes a No. 3 threaded sleeve 6 fixedly connected to one end of the relief connecting rod 1. The No. 3 threaded sleeve 6 is threaded with a No. 3 threaded post 5. The end of the No. 3 threaded post 5 away from the No. 1 wrench 2 is fixedly connected to a relief head 4. The No. 3 threaded sleeve 6 can quickly connect the relief connecting rod 1 with relief heads 4 of different specifications and sizes, increasing the practicality and compatibility of relief work and enabling it to cope with various scenarios.

[0024] Please combine Figure 3 As shown, the relief head 4 has a multi-prism structure and cooperates with the hydraulic relief slot on the brake caliper. In this embodiment, the relief head 4 has a hexagonal prism structure and can be directly inserted into the groove of the hydraulic brake slot for adaptation.

[0025] Please combine Figure 3 As shown, the relief head 4 and the No. 3 threaded sleeve 6 adopt a reverse connection method opposite to the relief direction, which makes installation convenient and reliable, and maximizes the force transmission.

[0026] Please combine Figure 3 As shown, the multi-angle wrench mechanism includes two grooves on both sides of the relief connecting rod 1. Two threaded sleeves 10 are fixedly connected to the inner side of the two grooves. Two threaded sleeves 10 are threadedly connected to two threaded posts 9. A wrench 3 is fixedly connected to the end of each threaded post 9 away from the relief connecting rod 1. The two wrenches 3 are symmetrically distributed.

[0027] Please combine Figure 3 As shown, the two No. 2 wrenches 3 are located on a straight line that intersects with the two No. 1 wrenches 2 in space, and the two No. 2 wrenches 3 and the two No. 1 wrenches 2 are distributed in an umbrella shape in space.

[0028] The implementation principle of a tram hydraulic brake release fixture in this embodiment is as follows: Before use, select a suitable release head 4 according to the size and specifications of the hydraulic release slot on the tram hydraulic brake caliper, and fix it in the No. 3 threaded sleeve on the release connecting rod 1 through the No. 3 threaded post 5. At the same time, according to the actual release scenario, selectively install No. 1 wrench 2 and No. 2 wrench 3. The No. 1 threaded post 7 at one end of the two No. 1 wrenches 2 is sleeved into the No. 1 threaded sleeve 8 on both sides to achieve a fixed connection between the No. 1 threaded post 7 and the release connecting rod 1. Similarly, the No. 2 wrench 3 is fixed to both sides of the release connecting rod 1 through the No. 2 threaded post 9 at one end of the two No. 2 wrenches 3, so that the two No. 1 wrenches 2 and the two No. 2 wrenches 3 are distributed in an umbrella shape in space. After the hydraulic brake release fixture is assembled, align one end of the release head 4 with the interface of the hydraulic release component on the brake caliper, and apply force to the handle of the fixture in the direction required for release, so that the fixture rotates and drives the rotation of the release component through the release interface to achieve the release of the hydraulic brake.

[0029] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A hydraulic brake release device for a tram, comprising a release connecting rod (1), characterized in that, The relief connecting rod (1) has a groove on each side of one end. The inner sides of the two grooves are fixedly connected to a threaded sleeve (8). The two threaded sleeves (8) are threadedly connected to a threaded post (7). The end of each threaded post (7) away from the relief connecting rod (1) is fixedly connected to a wrench (2). The two wrenches (2) are symmetrically distributed. The end of the relief connecting rod (1) away from the wrench (2) is provided with a multi-angle mechanism. A multi-angle wrench mechanism is provided between the multi-angle mechanism and the wrench (2).

2. The tram hydraulic brake release device as described in claim 1, characterized in that, The multi-head mechanism includes a No. 3 threaded sleeve (6) fixedly connected to one end of the relief connecting rod (1), the No. 3 threaded sleeve (6) is threaded with a No. 3 threaded post (5), and the end of the No. 3 threaded post (5) away from the No. 1 wrench (2) is fixedly connected with a relief head (4).

3. The tram hydraulic brake release device as described in claim 2, characterized in that, The relief head (4) has a multi-prism structure and engages with the hydraulic relief slot on the brake caliper.

4. The tram hydraulic brake release device as described in claim 3, characterized in that, The relief head (4) and the No. 3 threaded sleeve (6) are connected in a reverse manner opposite to the relief direction.

5. The tram hydraulic brake release device as described in claim 1, characterized in that, The multi-angle wrench mechanism includes two grooves on both sides of the relief connecting rod (1), two threaded sleeves (10) are fixedly connected to the inner sides of the two grooves, two threaded sleeves (10) are threadedly connected to two threaded posts (9), and a wrench (3) is fixedly connected to the end of each threaded post (9) away from the relief connecting rod (1), and the two wrenches (3) are symmetrically distributed.

6. The tram hydraulic brake release device as described in claim 5, characterized in that, The two lines containing the second wrench (3) are spatially intersected with the lines containing the first wrench (2).

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