Calibration device for brake pad and brake disc on-line detection system of motor train unit brake system

Abstract

The utility model discloses a motor train unit brake system brake pad and brake disc on-line detection system calibration device which comprises a supporting frame and four sets of brake mechanisms which are arranged adjacently and simulate brake pads and brake discs of a motor train unit brake system. Various arrangement types of brake pads and brake discs of the brake system of the motor train unit on a bogie can be reproduced by adjusting the position of the brake pad and brake disc brake mechanism of the brake system of the motor train unit; the brake pad and brake disc braking mechanism of the simulation motor train unit braking system comprises a sliding supporting plate, vertical plates and brake pads, the vertical plates are vertically arranged at the two ends of the front face of the sliding supporting plate, the brake pads are arranged on the inner sides of the vertical plates in an attached mode, information of the brake pads is known, and the back face of the sliding supporting plate is connected to the supporting frame in a sliding mode. According to the utility model, the detection data precision index of the brake pad and brake disc detection system of the motor train unit brake system can be rapidly calibrated, so that the brake pad and brake disc detection system of the motor train unit brake system can be put into use as soon as possible, and the system data precision can be calibrated in later maintenance.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the brake pad and brake disc wear, defect safety early warning detection field such as brake gap over-limit, brake system failure of motor train unit brake system, relates to a kind of 3D laser scanning image detection equipment precision fast calibration special tool, specifically related to a kind of motor train unit brake system brake pad and brake disc online detection system calibration device. BACKGROUND

[0002] With the improvement of motor train unit speed, brake system, as an important part of motor train unit, is the reliable guarantee of motor train unit high-speed operation, and plays an important role in train running safety.

[0003] Regenerative braking and air braking cooperation is the main braking mode of today's high-speed motor train unit brake system. Among them, air braking is to generate resistance torque on the wheel set through the friction of brake disc and brake pad to realize the deceleration and parking of motor train unit. Long-term use of air braking during motor train unit operation will lead to high temperature and severe wear of brake pad and brake disc. Brake disc may produce thermal cracks due to heat effect, and wear beyond limit will inevitably affect train safety.

[0004] Based on this, a motor train unit brake system brake pad and brake disc detection system (patent number CN 222528954 U motor train unit brake system brake pad and brake disc online detection system) has been developed, which can comprehensively monitor and wear detect the brake pad and brake disc of motor train unit brake system.

[0005] However, the motor train unit brake system brake pad and brake disc detection system lacks special tools for data precision calibration, resulting in the need for a large amount of data to be accumulated after installation and preliminary debugging to meet the required data precision indicators.

[0006] Currently, the motor train unit brake system brake pad and brake disc detection system relies entirely on real-time collection of real train data and system data for comparison and continuous correction of system algorithms. This process is time-consuming and labor-intensive and affects the early use of motor train unit brake system brake pad and brake disc detection system. In order to enable the system to be put into use as soon as possible after installation and preliminary debugging and to calibrate system data precision in later maintenance, a special tool is needed to quickly calibrate the detection data precision indicators of motor train unit brake system brake pad and brake disc detection system. SUMMARY

[0007] The utility model aims at providing a kind of motor train unit brake system brake pad and brake disc online detection system calibration device to solve the problem of enabling motor train unit brake system brake pad and brake disc online detection system to be put into use as soon as possible after installation and preliminary debugging and to calibrate system data precision in later maintenance.

[0008] The technical scheme of the utility model discloses

[0009] A calibration device of an online detection system of brake disc and brake disc of motor train unit braking system, comprising a support frame and four groups of adjacent simulation motor train unit braking system brake disc brake mechanism, adjusting the position of the simulation motor train unit braking system brake disc brake mechanism can reproduce various arrangement types of motor train unit braking system brake disc on the bogie, the simulation motor train unit braking system brake disc brake mechanism comprises a sliding support plate, a vertical plate and a brake disc, the vertical plate is vertically arranged at both ends of the front surface of the sliding support plate, the brake disc is attached to the inner side of the vertical plate, the information of the brake disc is known, and the back surface of the sliding support plate is slidably connected to the support frame.

[0010] Further, the calibration device and the online detection system of brake disc and brake disc of motor train unit braking system are linearly arranged in the vertical rail direction, are parallel to each other, are arranged one below the other, and are staggered in the horizontal direction.

[0011] Further, the calibration device is located above the rail, and the top of the online detection system of brake disc and brake disc of motor train unit braking system is lower than the top of the rail.

[0012] Further, the vertical distance between the online detection system of brake disc and brake disc of motor train unit braking system and the calibration device is 400-440mm, and the horizontal distance is 200-400mm.

[0013] Further, a through groove is arranged on one side vertical surface of the support beam of the support frame along the length direction, screw holes are arranged on the sliding support plate and are connected to the through groove through a slotted nut and a bolt, and the sliding support plate can be manually slid or disassembled.

[0014] Alternatively, the calibration device further comprises a motor and a sliding table, the other side vertical surface of the support beam of the support frame is fixedly provided with the sliding table, and the sliding support plate is detachably connected to the sliding block of the sliding table.

[0015] Further, the bottom of the support frame is provided with an insulating pad.

[0016] Further, the dovetail plate on the brake disc is matched with the dovetail groove on the vertical plate.

[0017] Further, the support frame comprises a base frame, support columns and a support beam, the base frame comprises a stable structure connected in the shape of a quadrilateral, the support columns are vertically arranged at both ends of the base frame, and the top ends of the two support columns are jointly connected to the support beam.

[0018] Further, the base frame, the support columns and the support beam are made of aluminum profiles.

[0019] Compared with the prior art, the utility model has the following advantages:

[0020] (1) The brake disc and brake pad online detection system calibration device for the brake system of the EMU has the aluminum profile with the pass-through slot and the sliding table with the motor, and can realize the manual and automatic dual-mode operation mode.

[0021] (2) The brake disc and brake pad online detection system calibration device for the brake system of the EMU selects the aluminum profile with the pass-through slot, and is provided with the sliding table with the motor, and can realize the manual and automatic dual-mode operation mode.

[0022] (3) The brake disc and brake pad online detection system of the EMU detects the simulated real target brake pad (the brake pad in the brake disc and brake pad online detection system calibration device for the brake system of the EMU), which is beneficial to the system to clearly and accurately complete data calibration and avoid large data precision deviation due to different detection targets.

[0023] (4) The brake disc and brake pad online detection system calibration device for the brake system of the EMU is provided with the insulating material pad block at the contact surface with the steel rail to realize insulation with the track, and avoid unpredictable safety accidents caused by equipment interference or conduction track signal.

[0024] (5) The brake disc and brake pad online detection system calibration device for the brake system of the EMU is used for quickly calibrating the detection data precision index of the brake disc and brake pad detection system of the EMU, so that the brake disc and brake pad detection system of the EMU can be put into use as soon as possible and the system data precision is calibrated in the later maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a plan view of the brake disc and brake pad online detection system calibration device for the brake system of the EMU.

[0026] Figure 2 It is an axonometric view of the brake disc and brake pad online detection system calibration device for the brake system of the EMU.

[0027] Figure 3 It is a position relation view of the brake disc and brake pad online detection system for the brake system of the EMU and the brake disc and brake pad online detection system calibration device for the brake system of the EMU.

[0028] Figure 4The utility model provides a brake pad and brake disc online detection system calibration device for motor train unit braking system brake pad and brake disc, and a brake pad collection unit of the brake pad and brake disc online detection system for motor train unit braking system.

[0029] Figure 5 It is a position number schematic view of brake pad and brake disc on bogie for motor train unit braking system.

[0030] Figure 6 It is a partial assembly view of brake pad, dovetail groove vertical plate and sliding support plate.

[0031] Among them, 1 - brake pad, 2 - dovetail groove vertical plate, 3 - sliding support plate, 4 - sliding table, 5 - motor, 6 - aluminum profile, 7 - nylon pad, 8 - cast aluminum corner piece, 9 - brake pad collection unit, 10 - steel rail. DETAILED DESCRIPTION

[0032] The utility model will be further explained in connection with the drawings and examples.

[0033] Example 1:

[0034] Referring to Figure 1 and Figure 2 , the brake pad and brake disc online detection system calibration device for motor train unit braking system of the embodiment comprises a support frame, brake pad 1, dovetail groove vertical plate 2, sliding support plate 3, sliding table 4, motor 5, nylon pad 7 and cast aluminum corner piece 8.

[0035] Among them, the support frame comprises a chassis, support columns and a support beam, the chassis comprises a stable structure connected into a quadrilateral, the support columns are vertically arranged at both ends of the chassis, and the top ends of the two support columns are connected to a support beam, so that a stable support frame is formed. Preferably, the materials of the chassis, support columns and support beam are aluminum profiles 6.

[0036] Among them, two brake pads 1 and two dovetail groove vertical plates 2 plus a sliding support plate 3 form a pair (or a single group) of simulated motor train unit braking system brake pad and brake disc braking mechanism. The brake pad and brake disc online detection system calibration device for motor train unit braking system of the embodiment is provided with the above four groups of simulated motor train unit braking system brake pad and brake disc braking mechanism.

[0037] The two ends of the sliding support plate 3 are vertically provided with the dovetail groove vertical plates 2, and the inner side of the dovetail groove vertical plates 2 is provided with the brake pad 1. Preferably, the dovetail plates on the brake pad 1 are matched with the dovetail grooves on the dovetail groove vertical plates 2, as shown in Figure 6 .

[0038] The back of the sliding support plate 3 is slidably connected to one side of the support beam (aluminum profile 6), and the sliding support plate 3 can slide along the length direction of the support beam and can be removed. Specifically, a through slot is provided on one side of the support beam along the length direction, and a screw hole is provided on the sliding support plate 3 and connected to the through slot through a slotted nut and a bolt. In the state that the bolt is moderately loose, the sliding support plate 3 can be manually slid relative to one side of the aluminum profile 6 or removed.

[0039] In addition, the brake pad and brake disc calibration device of the motor train brake system online detection system of the embodiment further comprises a motor 5 and a sliding table 4. When the electric mode is selected, the above-mentioned simulated brake pad and brake disc brake mechanism of the motor train brake system can be installed on the sliding table 4 and slid relative to the motor 5 in the electric mode, and can also be manually slid in the non-powered mode. Specifically, the sliding table 4 is installed on the other side of the support beam (aluminum profile 6), and the back of the sliding support plate 3 is detachably connected (bolted) to the sliding block of the sliding table 4.

[0040] That is, the simulated brake pad and brake disc brake mechanism of the motor train brake system can be moved in manual mode or electric mode. When the manual mode is selected, the sliding support plate 3 is connected to the through slot of the aluminum profile 6 for manual sliding. When the electric mode is needed, the sliding support plate 3 is removed from the through slot and connected to the sliding block of the sliding table 4, so that it can be electrically slid.

[0041] The bottom frame is provided with nylon pads 7 below the two side edges, which are made of insulating materials to avoid interference with the track signals of the left and right rails 10 and affect the safety of train operation.

[0042] Preferably, cast aluminum corner fittings 8 are provided between the two sides of the support column and the bottom frame to stabilize the support column.

[0043] Embodiment 2:

[0044] Figure 3 The brake pad collecting unit 9 in the above-mentioned Chinese patent CN 222528954 U is a collecting box of the brake pad and brake disc detection system of the motor train brake system. A plurality of brake pad collecting units 9 are arranged in a straight line on the inside and outside of the vertical rail 10: brake pad collecting units 9 are arranged on the outside of the rail 10, and a plurality of brake pad collecting units 9 are also arranged in a straight line on the inside of the rail 10 and below the calibration device, and the top of the brake pad collecting unit 9 is lower than the top of the rail 10.

[0045] In other words, the brake pad and brake disc online detection system of the motor train brake system and the calibration device are arranged in parallel and one above the other, and are staggered in the horizontal direction.

[0046] The vertical distance between the brake pad and brake disc online detection system of the motor train braking system and the calibration device is 400-440mm;

[0047] The horizontal distance between the brake pad and brake disc online detection system of the motor train braking system and the calibration device is 200-400mm.

[0048] Referring to Figure 4 The 3D stereo triangular position relationship formed by the camera and the laser in the brake pad 1 and the brake pad acquisition unit 9 of the calibration device of the brake pad and brake disc online detection system of the motor train braking system of Example 1 is reproduced statically.

[0049] In addition, the nylon pads 7 of the calibration device of the brake pad and brake disc online detection system of the motor train braking system of Example 1 are located above the steel rail 10, and the downward protruding parts of the nylon pads 7 on the left and right sides are clamped inside the steel rail 10.

[0050] Example 3:

[0051] Referring to Figure 4 As shown in the figure, there are three types of A, B, and C for the arrangement of the brake pad and brake disc on the bogie of the motor train braking system.

[0052] Type A has four groups of brake pads on a single axle, one group on the left wheel disc, one group on the right wheel disc, and two groups on the axle disc.

[0053] Type B has three groups of brake pads on a single axle, all distributed on the axle disc.

[0054] Type C has two groups of brake pads on a single axle, one group on the left wheel disc, and one group on the right wheel disc.

[0055] The calibration device of the brake pad and brake disc online detection system of the motor train braking system of Example 1 is provided with four groups of simulated brake pad and brake disc braking mechanisms of the motor train braking system. By manually or electrically adjusting the position of the simulated brake pad and brake disc braking mechanism, the above-mentioned A, B, or C arrangement types of the brake pad and brake disc on the bogie of the motor train braking system can be completely reproduced.

[0056] The working process (or use method) of the calibration device of the brake pad and brake disc online detection system of the motor train braking system of Example 1 is as follows:

[0057] (1) When the brake pad and brake disc of the motor train unit braking system are installed in the online detection system (the online detection system of the brake pad and brake disc of the motor train unit braking system is linearly arranged on the inside and outside of the vertical rail 10, and the top of the online detection system of the brake pad and brake disc of the motor train unit braking system is lower than the top of the rail 10, and the specific installation method is the same as the online detection system of the brake pad and brake disc of the motor train unit braking system in Chinese patent CN222528954 U, which will not be repeated here), and enters the debugging stage, the online detection system of the brake pad and brake disc of the motor train unit braking system in Example 1 is vertically placed on the rail 10 in the area of the brake pad collection unit 9, and the arrangement is as shown in Example 2.

[0058] (2) Adjust the multiple groups of simulated brake pad and brake disc brake mechanisms of the motor train unit braking system according to one of the three arrangement types A, B and C on the bogie, start the brake pad collection unit 9 to collect relevant data, and after single collection is completed, move (pull the calibration device on the rail 10 by hand, and the moving distance is generally 5-10 mm) the calibration device along the track direction and perpendicular to the track direction. The calibration device collects and stores in batches (collects the data of the brake pad 1 in different positions (dynamically simulates the different positions of the actual passing brake pad 1) multiple times).

[0059] (3) According to the known brake pad 1 data (such as residual thickness, and defects such as cracks and block separation) of the multiple groups of simulated brake pad and brake disc brake mechanisms of the motor train unit braking system, correct the brake pad collection unit 9 until the data results completely match.

[0060] (4) Save the finally corrected brake pad collection unit 9, and configure the arrangement type of the brake pad and brake disc of the motor train unit braking system on the bogie, and then save it again and restart the brake pad collection unit 9.

[0061] (5) Complete the data precision calibration work of the other two arrangement types of the three arrangement types A, B and C of the brake pad and brake disc of the motor train unit braking system on the bogie in turn, and save the relevant results. After all preparations are completed, the online detection system of the brake pad and brake disc of the motor train unit braking system can be put into use.

[0062] The above only describes preferred example embodiments of the present application, and does not constitute a limitation on the protection scope of the present application. Any modification, equivalent replacement and improvement made within the spirit and principles of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A calibrator for an on-line detection system for brake pads and brake discs of a train braking system, characterized in that, The calibration device comprises a support frame and four groups of adjacent simulation EMU brake system brake pad and brake disc brake mechanisms, and adjusting the positions of the simulation EMU brake system brake pad and brake disc brake mechanisms can reproduce various arrangement types of EMU brake system brake pad and brake disc on the bogie; the simulation EMU brake system brake pad and brake disc brake mechanism comprises a sliding support plate, a vertical plate and a brake pad, the vertical plate is vertically arranged at the front ends of the sliding support plate, the brake pad is attached to the inner side of the vertical plate, the information of the brake pad is known, and the back of the sliding support plate is slidingly connected to the support frame.

2. The calibrator of the online detection system of the brake pad and the brake disc of the EMU braking system according to claim 1, wherein, The calibration device and the EMU brake system brake pad and brake disc online detection system are linearly arranged in the vertical rail direction, are parallel to each other, are arranged one below the other, and are staggered in the horizontal direction.

3. The calibrator of the online detection system of the brake pad and the brake disc of the EMU braking system according to claim 2, characterized in that, The calibration device is located above the rail, and the top of the EMU brake system brake pad and brake disc online detection system is lower than the top of the rail.

4. The calibrator of the online detection system of the brake pad and the brake disc of the EMU braking system according to claim 2 or 3, characterized in that, The vertical distance between the EMU brake system brake pad and brake disc online detection system and the calibration device is 400-440 mm, and the horizontal distance is 200-400 mm.

5. A calibrating device for a brake pad and brake disc on-line detection system of a motor train brake system according to any one of claims 1-3, characterized in that, One side vertical surface of the support beam of the support frame is provided with a through groove in the length direction, the sliding support plate is provided with a screw hole and is connected to the through groove through a slotted nut and a bolt, and the sliding support plate can be manually slid or detached.

6. A calibrating device for a brake pad and brake disc on-line detection system of a motor train brake system according to any one of claims 1-3, characterized in that, The calibration device further comprises a motor and a sliding table, the other side vertical surface of the support beam of the support frame is fixedly provided with a sliding table, and the sliding block of the sliding table is detachably connected to the sliding support plate.

7. A calibrating device for a brake pad and brake disc on-line detection system of a motor train brake system according to any one of claims 1-3, characterized in that, The bottom of the support frame is provided with an insulating pad.

8. A calibrating device for a brake pad and brake disc on-line detection system of a motor train brake system according to any one of claims 1-3, characterized in that, The dovetail plate on the brake pad is matched with the dovetail groove on the vertical plate.

9. A calibrating device for a brake pad and brake disc on-line detection system of a motor train brake system according to any one of claims 1-3, characterized in that, The support frame comprises a base frame, support columns and a support beam, the base frame comprises a stable structure connected in the shape of a quadrilateral, the support columns are vertically arranged at the two ends of the base frame, and the top ends of the two support columns are jointly connected to a support beam.

10. The calibrator of the online detection system for the brake pad and the brake disc of the EMU braking system according to claim 9, characterized in that, The base frame, the support columns and the support beam are made of aluminum profiles.

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