Railway brake clamp detection tool
By designing a railway brake caliper inspection fixture, which employs a pressure sensor and a slide rail locking bolt structure, the problem of the complex structure of existing devices is solved, achieving the effects of simplified operation and improved inspection accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI LIK MECHANICAL & ELECTRICAL TECH CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-26
AI Technical Summary
Existing brake caliper testing devices are complex in structure and inconvenient to operate and maintain.
A testing fixture for railway brake calipers was designed, comprising a workbench, a testing mechanism, an installation assembly, and a control panel. It uses a pressure sensor to detect the clamping force and achieves stable installation and position adjustment of the brake calipers through a slide rail and locking bolts.
It simplifies the inspection process of brake calipers, improves the accuracy and convenience of inspection, facilitates subsequent maintenance, and ensures the stability of inspection results.
Smart Images

Figure CN224286407U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of brake caliper inspection, and in particular to a tooling for inspecting railway brake calipers. Background Technology
[0002] Train braking is the artificial means of stopping a train's movement, including slowing it down, preventing it from accelerating, or bringing it to a complete stop. Releasing or weakening the braking effect on a braked train or locomotive is called "releasing the brakes." The entire set of equipment installed on a train for applying and releasing brakes is collectively called the train's "braking system." "Braking" and "braking system" are commonly referred to as "brakes." Applying brakes is often simply called "applying the brakes" or "lowering the brakes," while releasing the brakes is simply called "releasing the brakes." The train brake caliper unit is an important component of rail transport equipment, mainly used for braking between various locomotives and rolling stock. Before installing the brake caliper unit on a train, its performance must be tested. The basic braking mode used in my country's high-speed trains is disc braking, where brake discs are installed on the axle or on the side of the wheel spokes. Brake calipers press two brake pads made of synthetic materials tightly against the side of the brake disc, generating braking force through friction to stop the train.
[0003] Brake calipers need to be tested before leaving the factory, but existing testing devices are complex in structure and require professional personnel to operate, and it is also inconvenient to maintain the testing devices later. Utility Model Content
[0004] To address the problem of existing clamp inspection fixtures being complex and inconvenient to operate, this application provides a railway brake clamp inspection fixture.
[0005] The technical solution for a railway brake caliper testing fixture provided in this application is as follows:
[0006] A railway brake caliper testing fixture includes a workbench, a testing mechanism mounted on the top outer wall of the workbench, and mounting components and control panels for mounting brake calipers mounted on both sides of the top outer wall of the workbench, respectively, with the mounting components and control panels located on both sides of the testing mechanism.
[0007] By adopting the above structure, the workbench facilitates the installation of the testing mechanism, the mounting components facilitate the installation of the brake calipers to be tested, and the mounting components and testing mechanism facilitate the testing of the calipers.
[0008] Preferably, the testing mechanism includes a support frame fixedly connected to the outer wall of the top of the workbench, and the same testing disk is fixedly connected to the outer wall of the opposite side of the support frame.
[0009] By adopting the above structure, the support frame facilitates the fixation of the detection plate.
[0010] Preferably, the outer walls of both sides of the detection disk are provided with grooves, and the two grooves are symmetrically arranged on both sides of the detection disk, and the inner walls of the two grooves are equipped with detection components.
[0011] By adopting the above structure, the detection component can be easily installed through the groove on the detection disc, and the setting of the detection component facilitates the detection of the clamping force of the brake caliper.
[0012] Preferably, the detection component includes a contact seat slidably connected to the inner wall of the groove, and a pressure sensor is fixedly connected to one side of the inner wall of the groove, with multiple springs connecting the pressure sensor and the contact seat.
[0013] By adopting the above structure, the contact seat is moved by the brake caliper, thereby compressing the spring. When the spring is compressed, the pressure sensor detects the clamping force, which facilitates real-time detection of the clamping force of the brake caliper.
[0014] Preferably, the mounting assembly includes two slide rails fixedly connected to the worktable, and the same sliding seat is slidably connected to the two slide rails.
[0015] By adopting the above structure, the worktable facilitates the installation of the slide rail, and the sliding design facilitates the sliding installation of the slide block.
[0016] Preferably, the top outer wall of the sliding seat is fixedly connected to two mounting brackets, and the two mounting brackets are arranged symmetrically.
[0017] By adopting the above structure, the sliding seat facilitates the installation of the mounting bracket, the mounting bracket facilitates the installation of the brake caliper, and the sliding seat allows for easy adjustment of the brake caliper position.
[0018] Preferably, the top outer wall of the sliding seat has a threaded opening, and a locking bolt is screwed into the inner wall of the threaded opening.
[0019] By adopting the above structure, the sliding seat can be easily fixed in a designated position by tightening bolts.
[0020] Preferably, the pressure sensor is electrically connected to the control panel.
[0021] By adopting the above structure, the pressure value detected by the pressure sensor can be conveniently displayed through the control panel.
[0022] In summary, this application includes at least one of the following beneficial technical effects:
[0023] 1. This application sets two detection components in the detection mechanism. The pressure sensor in the detection component facilitates the detection of the clamping force of the brake caliper, and the synchronous detection of the two pressure sensors improves the accuracy of the detection. At the same time, the detection component and the installation component in this solution are easy to operate and easy to maintain in the later stage, which solves the problem of inconvenient operation and maintenance of the existing brake caliper detection device.
[0024] 2. This application improves the accuracy of testing by setting an installation component on the working surface. The installation component facilitates the installation of the brake caliper to be tested, and the slide rail facilitates the position adjustment of the brake caliper on the mounting bracket. The locking bolts in the installation component ensure the stability of the mounting bracket, thereby avoiding the situation where the brake caliper shakes during the testing process and affects the test results. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall structure of a railway brake caliper testing fixture according to an embodiment of this application;
[0026] Figure 2 This is a schematic diagram illustrating the main structure of the testing mechanism in the embodiments of this application;
[0027] Figure 3 This is a schematic diagram illustrating the cross-sectional structure of the detection component, which is the main feature of this application embodiment.
[0028] Figure 4 This is a schematic diagram illustrating the main structure of the installation components in the embodiments of this application;
[0029] Reference numerals: 1. Workbench; 2. Detection mechanism; 3. Mounting assembly; 4. Control panel; 5. Support frame; 6. Detection plate; 7. Detection assembly; 8. Groove; 10. Pressure sensor; 11. Contact seat; 12. Spring; 13. Slide rail; 14. Mounting bracket; 15. Locking bolt; 16. Sliding seat. Detailed Implementation
[0030] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.
[0031] This application discloses a testing fixture for railway brake calipers.
[0032] Reference Figure 1-3A testing fixture for railway brake calipers includes a workbench 1, a testing mechanism 2 mounted on the top outer wall of the workbench 1, and mounting components 3 and control panels 4 for mounting brake calipers mounted on both sides of the top outer wall of the workbench 1. The mounting components 3 and control panels 4 are located on both sides of the testing mechanism 2. The mounting components 3 facilitate the installation and fixing of the brake calipers to be tested, and the cooperation between the control panels 4 and the testing mechanism 2 facilitates timely feedback of the test results.
[0033] In use, the workbench 1 facilitates the installation of the testing mechanism 2, and the installation component 3 facilitates the installation of the brake caliper to be tested. The installation component 3 and the testing mechanism 2 facilitate the testing of the caliper.
[0034] Reference Figure 1-2 The testing mechanism 2 includes a support frame 5 fixedly connected to the top outer wall of the workbench 1, and a testing disc 6 is fixedly connected to the outer wall of the opposite side of the support frame 5. The testing disc 6 is mainly designed to facilitate the clamping of the brake caliper. Grooves 8 are provided on both outer walls of the testing disc 6, and the two grooves 8 are symmetrically arranged on both sides of the testing disc 6. Testing components 7 are installed on the inner walls of the two grooves 8. The two symmetrically arranged testing components 7 facilitate the simultaneous detection of the clamping force on both sides of the brake caliper, thereby improving the accuracy of the test results. The support frame 5 facilitates the fixing of the testing disc 6, and the grooves 8 on the testing disc 6 facilitate the installation of the testing components 7. The testing components 7 facilitate the detection of the clamping force of the brake caliper.
[0035] Reference Figure 2-3 The detection component 7 includes a contact seat 11 slidably connected to the inner wall of the groove 8, and a pressure sensor 10 is fixedly connected to one side of the inner wall of the groove 8. Multiple springs 12 are connected between the pressure sensor 10 and the contact seat 11. When the spring 12 is compressed, the force on it is transmitted to the pressure sensor 10. The pressure sensor typically consists of a pressure-sensitive element and a signal processing unit. Depending on the type of test pressure, pressure sensors can be classified as gauge pressure sensors, differential pressure sensors, and absolute pressure sensors. The contact seat 11 is moved by the brake caliper, thereby compressing the spring 12. When the spring 12 is compressed, the pressure sensor 10 detects the clamping force, thus facilitating real-time detection of the brake caliper's clamping force.
[0036] Reference Figure 4The mounting assembly 3 includes two slide rails 13 fixedly connected to the workbench 1, and the same sliding seat 16 is slidably connected to the two slide rails 13. Two mounting brackets 14 are fixedly connected to the top outer wall of the sliding seat 16, and the two mounting brackets 14 are symmetrically arranged. The top outer wall of the sliding seat 16 has a threaded opening, and a locking bolt 15 is screwed into the inner wall of the threaded opening. The workbench 1 facilitates the installation of the slide rails 13, the slide rails 13 facilitate the sliding installation of the sliding seat 16, the sliding seat 16 facilitates the installation of the mounting brackets 14, the mounting brackets 14 facilitate the installation of the brake calipers, the sliding seat 16 facilitates the adjustment of the position of the brake calipers, and the locking bolts 15 facilitate the fixing of the sliding seat 16 in a designated position.
[0037] Reference Figure 1-3 The pressure sensor 10 is electrically connected to the control panel 4, which allows the pressure value detected by the pressure sensor 10 to be displayed conveniently.
[0038] The implementation principle of a railway brake caliper testing fixture according to an embodiment of this application is as follows: In use, the brake caliper to be tested is first installed on the mounting bracket 14. After installation, the mounting bracket 14 is pushed to adjust the caliper to a suitable position, and then the locking bolt 15 is tightened to fix the sliding seat 16. At this time, the control panel 4 is turned on. When the brake caliper is started to press the testing disc 6, the contact seat 11 directly contacts the caliper, thereby causing the caliper to directly push the contact seat 11 to compress the spring 12. When the spring 12 is compressed, the clamping force acts on the pressure sensor 10, thereby facilitating the real-time detection of the clamping force of the caliper. The detected clamping force is transmitted to the control panel 4 for display.
[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A testing fixture for railway brake calipers, comprising a workbench (1), characterized in that: The top outer wall of the workbench (1) is equipped with a detection mechanism (2), and the two sides of the top outer wall of the workbench (1) are respectively equipped with a mounting component (3) for mounting brake calipers and a control panel (4), which are located on both sides of the detection mechanism (2).
2. The railway brake caliper testing fixture according to claim 1, characterized in that: The testing mechanism (2) includes a support frame (5) fixedly connected to the outer wall of the top of the workbench (1), and the same testing plate (6) is fixedly connected to the outer wall of the opposite side of the support frame (5).
3. The railway brake caliper testing fixture according to claim 2, characterized in that: The outer walls of both sides of the detection disk (6) are provided with grooves (8), and the two grooves (8) are symmetrically arranged on both sides of the detection disk (6). The inner walls of the two grooves (8) are equipped with detection components (7).
4. The railway brake caliper testing fixture according to claim 3, characterized in that: The detection component (7) includes a contact seat (11) slidably connected to the inner wall of the groove (8), and a pressure sensor (10) is fixedly connected to one side of the inner wall of the groove (8). A plurality of springs (12) are connected between the pressure sensor (10) and the contact seat (11).
5. The railway brake caliper testing fixture according to claim 4, characterized in that: The mounting assembly (3) includes two slide rails (13) fixedly connected to the workbench (1), and the same sliding seat (16) is slidably connected to the two slide rails (13).
6. The railway brake caliper testing fixture according to claim 5, characterized in that: The top outer wall of the sliding seat (16) is fixedly connected to two mounting brackets (14), and the two mounting brackets (14) are symmetrically arranged.
7. A railway brake caliper testing fixture according to claim 6, characterized in that: The sliding seat (16) has a threaded opening on the top outer wall, and a locking bolt (15) is screwed into the inner wall of the threaded opening.
8. The railway brake caliper testing fixture according to claim 7, characterized in that: The pressure sensor (10) is electrically connected to the control panel (4).