High-speed train brake disc impact test tooling

Abstract

The utility model provides a high-speed train brake disc impact test fixture, including: a hydraulic control box for supporting a bottom fixing plate and for control, and the hydraulic control box is arranged on the left side of the bottom fixing plate, the upper end of the hydraulic control box is fixedly connected with a left protective plate, a motor box is arranged on the central rear side of the bottom fixing plate, the right end of the bottom fixing plate is connected with a right protective plate, a control display screen is arranged on the upper end of the hydraulic control box, and a clamping and fixing device is arranged on the right side of the hydraulic control box. The utility model records a high-speed train brake disc impact test fixture, which records that by providing a hydraulic control box, the device can be controlled to perform friction clamping, by providing a left protective plate and a right protective plate, the device can be safely protected during the experiment to increase the safety of the device, and by providing a clamping and fixing device, the device can be firmly clamped to meet the friction conditions of the device.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-speed trains, in particular to a tooling for impact testing of brake discs of high-speed trains. Background Art

[0002] The brake is a component in the braking system that generates braking force to hinder the movement or movement trend of the vehicle. Except for various retarder devices, automobile brakes are almost all friction brakes that use the friction between the fixed element and the working surface of the rotating element to generate braking torque. At present, the friction brakes widely used in various types of automobiles can be divided into two categories: drum type and disc type according to the different rotating elements. The difference between them is that the rotating element in the friction pair of the drum brake is the brake drum, with its cylindrical surface as the working surface; the rotating element in the friction pair of the disc brake is a disc-shaped brake disc, with its end face as the working surface. The brake disc is the friction pair of the disc brake. In addition to the strength and rigidity required as a component, it should also have the highest and most stable friction coefficient, as well as appropriate wear resistance, heat resistance, heat dissipation and heat capacity. The high-speed train brake disc impact test tool is a device used to perform impact tests on high-speed train brake discs, but general experimental work is difficult to meet the test of brake discs, the protection effect is poor, the rotation capacity is insufficient, and it cannot simulate the friction performance of trains moving at high speed.

[0003] The existing authorization number is CN203587353U. The utility model relates to the technical field of electric vehicles, a pneumatic disc brake bench test fixture, a spindle mounting flange for connecting to the test bench is installed at one end of the spindle, a brake disc mounting flange for connecting to the test bench is movably mounted on the other end of the spindle through a bearing, a brake disc mounted on the middle of the spindle is connected to the corresponding end of the brake disc mounting flange, and a brake caliper for clamping the brake disc is mounted on the spindle through a brake caliper mounting plate. In order to overcome the shortcomings of poor rigidity of two relatively independent flange fixtures in the existing technology, the utility model connects the brake caliper mounting flange and the brake disc mounting flange into one body through the design of a connected spindle and a bearing mechanism, and there is no radial misalignment and deformation during the test, thereby eliminating the influence of the rigid deformation of the fixture itself on the test results. However, the above-mentioned test fixture has insufficient protection capability, poor safety, and cannot meet the friction test of high-speed trains. There is an urgent need for a high-speed train brake disc impact test fixture to solve the above problems. Utility Model Content

[0004] The technical content of the utility model is to provide a high-speed train brake disc impact test tool.

[0005] In order to solve the above problems, the utility model provides a high-speed train brake disc impact test tool, including: a hydraulic control box for supporting a bottom fixing plate and for control, and the hydraulic control box is arranged on the left side of the bottom fixing plate, the upper end of the hydraulic control box is fixedly connected with a left protective plate, a motor box is arranged at the rear side of the center of the bottom fixing plate, the right end of the bottom fixing plate is connected with a right protective plate, a control display screen is arranged at the upper end of the hydraulic control box, a clamping fixture is arranged on the right side of the hydraulic control box, a rotating connecting rod is connected to the front end of the motor box, two sets of bottom supporting devices are arranged at the bottom of the rotating connecting rod, and a brake disc fixing device is sleeved at the front end of the rotating connecting rod;

[0006] The clamping and fixing device comprises a clamping and fixing head, and the clamping and fixing head is arranged on the right side of the motor case;

[0007] The bottom support device comprises a bottom support column, and the bottom support column is arranged at the bottom of the rotating connecting rod;

[0008] The brake disc fixing device comprises a rotating connecting rod sleeve, and the rotating connecting rod sleeve is sleeved on the front end of the rotating connecting rod.

[0009] As a further solution of the utility model, the hydraulic control chassis is provided with a circuit groove matching the control display screen, the hydraulic control chassis is provided with a groove matching the clamping and fixing device, and the hydraulic control chassis is provided with a cavity matching the hydraulic press, so that the device can control the clamping.

[0010] As a further solution of the present invention, the left side protection plate is provided with a groove matching with the hydraulic control box, so that the device can be safely protected.

[0011] As a further solution of the utility model, the motor chassis is provided with a cavity matched with the motor, and the motor chassis is provided with a hole matched with the rotating connecting rod, so that the motor drives the rotating connecting rod.

[0012] As a further solution of the present invention, two groups of friction blocks are arranged between the two groups of clamping and fixing heads, so that the device can simulate braking.

[0013] As a further solution of the utility model, the rotating connecting rod is provided with a bolt hole matched with the brake disc fixing device, so that the brake disc fixing device can be firmly fixed.

[0014] As a further solution of the present invention, a ball bearing is arranged at the upper end of the bottom support column, and a groove matching with the ball bearing is opened in the bottom support column to support the rotating connecting rod.

[0015] As a further solution of the present invention, the rotating connecting rod sleeve is fixed to the rotating connecting rod by two groups of first fixing bolts, the front end of the rotating connecting rod sleeve is fixedly connected to a fixed disc, the fixed disc is bolted to a brake disc by four groups of second fixing bolts, the rotating connecting rod sleeve is provided with a bolt groove matched with the first fixing bolt, the fixed disc and the brake disc are provided with bolt grooves matched with the second fixing bolts, so that the brake disc fixing device is firmly fixed on the rotating connecting rod.

[0016] In summary, the utility model includes at least one of the following beneficial technical effects:

[0017] First, the utility model records a high-speed train brake disc impact test tooling, which records that by providing a hydraulic control chassis, the device can be controlled to perform friction clamping, by providing a left protective plate and a right protective plate, the device can be safely protected during the experiment to increase the safety of the device, and by providing a clamping and fixing device, the device can be firmly clamped to meet the friction conditions of the device.

[0018] Second, the utility model records a high-speed train brake disc impact test tooling, which records that by providing a motor case, the device can provide the rotation speed required for friction, by providing a bottom support device, the device can be firmly supported during the experiment, and by providing a brake disc fixing device, the device can be firmly fixed during the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the overall inclined surface structure on the left side of the high-speed train brake disc impact test tooling of the utility model;

[0021] Figure 2 It is a schematic diagram of the overall inclined surface structure on the right side of the utility model high-speed train brake disc impact test fixture;

[0022] Figure 3 This is a schematic diagram of the structure of the clamping and fixing device of the high-speed train brake disc impact test tooling of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the bottom support device of the high-speed train brake disc impact test tooling of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the brake disc fixing device of the high-speed train brake disc impact test tooling of the utility model;

[0025] Figure numerals: 1. bottom fixing plate; 2. hydraulic control chassis; 3. left protective plate; 4. motor chassis; 5. right protective plate; 6. control display screen; 7. clamping and fixing device; 71. clamping and fixing head; 72. friction block; 8. rotating connecting rod; 9. bottom supporting device; 91. bottom supporting column; 92. ball bearing; 10. brake disc fixing device; 101. rotating connecting rod sleeve; 102. first fixing bolt; 103. fixing disc; 104. second fixing bolt; 105. brake disc. DETAILED DESCRIPTION

[0026] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The high-speed train brake disc impact test fixture includes: a bottom fixing plate 1 for supporting and a hydraulic control box 2 for control, and the hydraulic control box 2 is arranged on the left side of the bottom fixing plate 1, the upper end of the hydraulic control box 2 is fixedly connected with a left protection plate 3, a motor box 4 is arranged at the rear side of the center of the bottom fixing plate 1, and a right protection plate 5 is connected to the right end of the bottom fixing plate 1. A control display screen 6 is arranged at the upper end of the hydraulic control box 2, and a clamping fixture 7 is arranged on the right side of the hydraulic control box 2. A rotating connecting rod 8 is connected to the front end of the motor box 4, and two groups of bottom supporting devices 9 are arranged at the bottom of the rotating connecting rod 8. A brake disc fixing device 10 is sleeved on the front end of the rotating connecting rod 8;

[0027] The clamping and fixing device 7 includes a clamping and fixing head 71, and the clamping and fixing head 71 is arranged on the right side of the motor case 4;

[0028] The bottom support device 9 includes a bottom support column 91, and the bottom support column 91 is arranged at the bottom of the rotating connecting rod 8;

[0029] The brake disc fixing device 10 comprises a rotating connecting rod sleeve 101 , and the rotating connecting rod sleeve 101 is sleeved on the front end of the rotating connecting rod 8 .

[0030] Please refer to Figures 1 to 3 It can be seen that in order to allow the device to be safely tested and clamped, the hydraulic control chassis 2 is provided with a circuit groove that matches the control display screen 6, the hydraulic control chassis 2 is provided with a groove that matches the clamping fixture 7, the hydraulic control chassis 2 is provided with a cavity that matches the hydraulic press, and the left protective plate 3 is provided with a groove that matches the hydraulic control chassis 2;

[0031] Please refer to Figure 2 , Figure 4 and Figure 5It can be seen that in order to make the device meet the experimental needs, the motor chassis 4 is provided with a cavity that matches the motor, the motor chassis 4 is provided with a channel that matches the rotating connecting rod 8, two groups of friction blocks 72 are arranged between the two groups of clamping fixing heads 71, the rotating connecting rod 8 is provided with bolt holes that match the brake disc fixing device 10, a ball bearing 92 is arranged on the upper end of the bottom support column 91, and the bottom support column 91 is provided with a groove that matches the ball bearing 92. The rotating connecting rod sleeve 101 is fixed on the rotating connecting rod 8 by two groups of first fixing bolts 102. The front end of the rotating connecting rod sleeve 101 is fixedly connected to a fixed disc 103, and the fixed disc 103 is bolted to the brake disc 105 through four groups of second fixing bolts 104. The rotating connecting rod sleeve 101 is provided with a bolt groove that matches the first fixing bolt 102, and the fixed disc 103 and the brake disc 105 are provided with bolt grooves that match the second fixing bolts 104.

[0032] The working principle of the high-speed train brake disc impact test tool provided by the utility model is as follows:

[0033] The first step: First, fix the brake disc on the rotating connecting rod 8 through the brake disc fixing device 10, then start the motor to start the experiment, and control the clamping fixture 7 through the control display screen 6 to perform a simulated friction experiment. After the experiment, measure the experimental results, replace the two sets of friction blocks 72 and the brake disc 105 in preparation for the next experiment.

[0034] Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations or direct or indirect applications may be made to these embodiments without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the attached claims and their equivalents, which are equally included in the scope of patent protection of the present invention.

Claims

1. High-speed train brake disc impact test tooling, characterized in that: include: A bottom fixing plate (1) for supporting and a hydraulic control box (2) for controlling, wherein the hydraulic control box (2) is arranged on the left side of the bottom fixing plate (1), characterized in that: a left protective plate (3) is fixedly connected to the upper end of the hydraulic control box (2), a motor box (4) is arranged at the central rear side of the bottom fixing plate (1), a right protective plate (5) is connected to the right end of the bottom fixing plate (1), a control display screen (6) is arranged at the upper end of the hydraulic control box (2), a clamping fixture (7) is arranged on the right side of the hydraulic control box (2), a rotating connecting rod (8) is connected to the front end of the motor box (4), two sets of bottom supporting devices (9) are arranged at the bottom of the rotating connecting rod (8), and a brake disc fixing device (10) is sleeved on the front end of the rotating connecting rod (8); The clamping and fixing device (7) comprises a clamping and fixing head (71), and the clamping and fixing head (71) is arranged on the right side of the motor case (4); The bottom support device (9) comprises a bottom support column (91), and the bottom support column (91) is arranged at the bottom of the rotating connecting rod (8); The brake disc fixing device (10) comprises a rotating connecting rod sleeve (101), wherein the rotating connecting rod sleeve (101) is sleeved on the front end of the rotating connecting rod (8).

2. The high-speed train brake disc impact test fixture according to claim 1 is characterized in that: The hydraulic control case (2) is provided with a circuit groove matching the control display screen (6), the hydraulic control case (2) is provided with a groove matching the clamping and fixing device (7), and the hydraulic control case (2) is provided with a cavity matching the hydraulic press.

3. The high-speed train brake disc impact test fixture according to claim 1 is characterized in that: The left side protection plate (3) is provided with a groove which matches the hydraulic control box (2).

4. The high-speed train brake disc impact test fixture according to claim 1 is characterized in that: The motor case (4) is provided with a cavity that matches the motor, and the motor case (4) is provided with a hole that matches the rotating connecting rod (8).

5. The high-speed train brake disc impact test tool according to claim 1, characterized in that: Two groups of friction blocks (72) are arranged between the two groups of clamping and fixing heads (71).

6. The high-speed train brake disc impact test tool according to claim 1, characterized in that: The rotating connecting rod (8) is provided with a bolt hole that matches the brake disc fixing device (10).

7. The high-speed train brake disc impact test tool according to claim 1, characterized in that: A ball bearing (92) is disposed at the upper end of the bottom support column (91), and a groove matching the ball bearing (92) is formed in the bottom support column (91).

8. The high-speed train brake disc impact test tool according to claim 1, characterized in that: The rotating connecting rod sleeve (101) is sleeved and fixed on the rotating connecting rod (8) via two groups of first fixing bolts (102); a fixing disc (103) is fixedly connected to the front end of the rotating connecting rod sleeve (101); the fixing disc (103) is bolted to a brake disc (105) via four groups of second fixing bolts (104); the rotating connecting rod sleeve (101) is provided with bolt grooves matching the first fixing bolts (102); and the fixing disc (103) and the brake disc (105) are provided with bolt grooves matching the second fixing bolts (104).

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