New clamp brake unit dynamic fatigue test device and test method

Abstract

The present invention discloses a novel clamp brake unit dynamic fatigue test device, including a base platform, on which a clamp brake unit module mechanism, a vertical loading module mechanism, a transverse loading module mechanism, a longitudinal loading module mechanism and a rotary loading module mechanism are arranged; the vertical loading module mechanism realizes a dynamic fatigue test of the tangential force load of the clamp brake unit body; the transverse loading module mechanism realizes a dynamic fatigue test of the transverse force load of the clamp brake unit body; the longitudinal loading module mechanism realizes a dynamic fatigue test of the longitudinal force load of the clamp brake unit body; the rotary loading module mechanism realizes a dynamic fatigue test of the reciprocating vibration force load of the clamp brake unit body. The adoption of this technical solution can meet the fatigue test process under various actual working conditions and environmental conditions, so as to obtain fatigue test data results with better accuracy, and can more truly verify the reliability and durability of the clamp brake unit under various actual working conditions and environmental conditions.

Description

Technical Field

[0001] The invention relates to the technical field of fatigue testing of clamp brake units, and in particular to a novel dynamic fatigue testing device and testing method for clamp brake units. Background Art

[0002] The brake caliper unit is an actuator for implementing air braking and parking braking. It is a core and key component of the braking system and bogie of rail transit locomotives and vehicles. It is a clamp-shaped device that converts air pressure (or other forms of external force such as hydraulic pressure, energy storage springs, zippers, etc.) into positive pressure between the friction pair of the brake pad and the brake disc. The brake caliper unit needs to operate normally under different actual working conditions and maintain the reliability and durability of the brake caliper unit. Therefore, the brake caliper unit needs to undergo comprehensive and rigorous performance tests to ensure that it meets working requirements.

[0003] In the prior art, for example, the patent "A fatigue test device and method for a brake caliper unit simulating braking torque" with publication number CN116659842A can realize fatigue limit simulation experiments under rigid transmission of the brake caliper unit, so as to perform limit tests on the fatigue of the rigid structure of the brake caliper, and can also realize fatigue limit simulation experiments under friction transmission of the brake caliper unit, so as to perform limit tests on the fatigue of the brake pad structure of the brake caliper, thereby making the test data more representative and covering a wider range of content. However, the test bench of the invention simulates a single working condition, and the dynamic fatigue of the brake caliper unit is only tested for braking and relief actions, and the measurement parameters only include air pressure and force value. The measurement parameters and conditions are single, and cannot reflect the condition of the brake caliper unit under actual working conditions. It cannot be applied to fatigue test processes under a variety of actual working conditions and environmental conditions, and therefore cannot meet the existing fatigue test requirements for brake caliper units. Summary of the invention

[0004] The object of the present invention is to provide a novel dynamic fatigue testing device for a clamp brake unit, so as to solve the problem in the prior art that the clamp brake unit cannot be applied to the fatigue testing requirements under various actual working environment conditions.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A novel clamp brake unit dynamic fatigue test device comprises a base platform, wherein a clamp brake unit module mechanism is arranged at one longitudinal end of the base platform, and a vertical loading module mechanism, a transverse loading module mechanism, a longitudinal loading module mechanism and a rotation loading module mechanism are arranged at the other longitudinal end;

[0007] The vertical loading module mechanism is provided with a clamp simulation disk adapted to the clamp brake unit body, and the clamp simulation disk is driven by the vertical loading module mechanism to make vertical contact with the clamp brake unit body, so as to realize a dynamic fatigue test of the tangential force load of the clamp brake unit body;

[0008] The transverse loading module mechanism includes a transverse slide, on which the vertical loading module mechanism is assembled and installed, and the caliper simulation disk is driven by the transverse loading module mechanism to make transverse contact with the caliper brake unit body, so as to realize a dynamic fatigue test of the transverse force load of the caliper brake unit body;

[0009] The longitudinal loading module mechanism is slidably connected to the transverse loading module mechanism, and the longitudinal loading module mechanism includes a longitudinal slide, and the transverse slide is slidably connected to the longitudinal slide. The longitudinal loading module mechanism drives the clamp simulation disk to make longitudinal contact with the clamp brake unit body, so as to realize a dynamic fatigue test of the longitudinal force load of the clamp brake unit body;

[0010] The rotary loading module mechanism is arranged below the longitudinal loading module mechanism, and the rotary loading module mechanism includes a rotary support platform, and the longitudinal slide seat is slidably connected to the rotary support platform. Through the rotary loading module mechanism, the clamp simulation disk and the clamp brake unit body are reciprocatingly rotated in contact, so as to realize the dynamic fatigue test of the reciprocating vibration force load of the clamp brake unit body.

[0011] As a further solution of the present invention: the vertical loading module mechanism includes a vertical servo electric cylinder, the telescopic end of the vertical servo electric cylinder is connected to the clamp simulation disk through a vertical floating joint, the clamp simulation disk is slidably connected to the transverse slide through a vertical guide rail assembly, and the vertical servo electric cylinder is fixedly connected to the transverse slide through a vertical mounting seat.

[0012] As a further solution of the present invention: a vertical force sensor is arranged between the vertical floating joint and the clamp simulation disk.

[0013] As a further solution of the present invention: the lateral loading module mechanism includes a lateral servo electric cylinder, which is fixedly mounted on the longitudinal slide, and the telescopic end of the lateral servo electric cylinder is connected to the lateral slide via a lateral floating joint, and the lateral slide is slidably connected to the longitudinal slide via a lateral guide rail assembly.

[0014] As a further solution of the present invention: a lateral force sensor is arranged on the tail end of the lateral floating joint that passes through the longitudinal slide.

[0015] As a further solution of the present invention: the longitudinal loading module mechanism includes a longitudinal servo electric cylinder, which is fixedly mounted on the rotating support via a longitudinal mounting seat, the telescopic end of the longitudinal servo electric cylinder is connected to the longitudinal slide via a longitudinal floating joint, and the longitudinal slide is slidably connected to the rotating support via a longitudinal guide rail assembly.

[0016] As a further solution of the present invention: a longitudinal force sensor is arranged between the longitudinal floating joint and the longitudinal slide.

[0017] As a further solution of the present invention: the rotary servo motor included in the rotary loading module mechanism is fixedly installed on the base platform, the driving end of the rotary servo motor is transmission-connected to the slewing support, the slewing support is rotatably connected to the base platform, and the slewing support is fixedly connected to the rotary support platform, and support blocks in contact with the base platform are provided at the four corners of the rotary support platform, the support block is detachably connected to the base platform through a pin rod, and the pin rod is slidably installed in an arc-shaped sliding hole opened on the rotary support platform.

[0018] As a further solution of the present invention: the clamp brake unit module mechanism includes a gantry and a clamp brake unit body, the gantry is fixedly installed on the base platform, and the clamp brake unit body is hung and connected to the gantry.

[0019] The test method using the novel clamp brake unit dynamic fatigue test device as described above comprises the following steps:

[0020] The frequency and number of inflation and exhaust actions of the clamp brake unit are set by program through the control system;

[0021] The vertical loading module mechanism is controlled by the control system to adjust the vertical relative position between the clamp brake unit body and the clamp simulation disk, so as to realize the dynamic fatigue test of the tangential force load of the clamp brake unit body;

[0022] The control system controls the operation of the lateral loading module mechanism to adjust the lateral relative position between the clamp brake unit body and the clamp simulation disk, thereby realizing a dynamic fatigue test of the lateral force load of the clamp brake unit body;

[0023] The longitudinal loading module mechanism is controlled by the control system to adjust the longitudinal relative position between the clamp brake unit body and the clamp simulation disk, so as to realize the dynamic fatigue test of the longitudinal force load of the clamp brake unit body;

[0024] The control system controls the rotational loading module mechanism to adjust the reciprocating rotational contact relative position between the clamp brake unit body and the clamp simulation disk, thereby realizing a dynamic fatigue test of the reciprocating vibration force load of the clamp brake unit body;

[0025] The control system is used to set the action time of the above working condition mechanism, the single action time of the fatigue test, the total number of cycles, and the number of cycles of the current fatigue;

[0026] Among them, the control system can independently control the vertical loading module mechanism, the transverse loading module mechanism, the longitudinal loading module mechanism and the rotational loading module mechanism or control multiple working mode mechanisms in a linked and combined manner.

[0027] The novel clamp brake unit dynamic fatigue test device and test method of the present invention have at least the following characteristics:

[0028] Beneficial effects:

[0029] (1) By arranging and arranging a clamp brake unit module mechanism, a vertical loading module mechanism, a lateral loading module mechanism, a longitudinal loading module mechanism and a rotation loading module mechanism on the base platform, the fatigue test process under various actual working conditions can be met, so as to obtain fatigue test data results with better accuracy, and the reliability and durability of the clamp brake unit under various actual working conditions can be more truly verified;

[0030] (2) The vertical loading module mechanism, the lateral loading module mechanism, the longitudinal loading module mechanism and the rotary loading module mechanism can be operated separately for dynamic fatigue testing, or multiple working condition mechanisms can be linked and combined for dynamic fatigue testing, which can more accurately simulate the working condition environment during the actual operation of the clamp brake unit;

[0031] (3) Various working mechanisms on the base platform realize four degrees of freedom (vertical, lateral, longitudinal, and rotational reciprocating vibration) to load the clamp brake unit for dynamic fatigue testing, which can truly simulate the relative position relationship between the clamp brake unit and the clamp simulation disk, and comprehensively detect the key physical quantities in the dynamic fatigue process of the clamp brake unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present invention will be further described below in conjunction with the accompanying drawings.

[0033] Figure 1 It is a side structural schematic diagram of the present invention;

[0034] Figure 2 is another lateral structural schematic diagram of the present invention;

[0035] Figure 3It is a structural schematic diagram of a mechanism for removing a clamp brake unit module on a base platform of the present invention;

[0036] Figure 4 yes Figure 3 A schematic diagram of a structure in which a vertical loading module mechanism, a lateral loading module mechanism, a longitudinal loading module mechanism and a rotation loading module mechanism are integrated into one;

[0037] Figure 5 yes Figure 4 A schematic diagram of the structure of the vertical loading module mechanism;

[0038] Figure 6 yes Figure 5 A schematic diagram of the rear end surface structure of the transverse slide;

[0039] Figure 7 yes Figure 4 Schematic diagram of the longitudinal loading module mechanism connected to the transverse loading module mechanism;

[0040] Figure 8 yes Figure 4 A schematic diagram of the structure of a longitudinal loading module mechanism on one side;

[0041] Fig. 9 yes Figure 4 A schematic diagram of the structure of the longitudinal loading module mechanism on the other side;

[0042] Fig.10 yes Figure 4 A schematic diagram of the structure of the rotating loading module mechanism in the upward direction;

[0043] Fig.11 yes Figure 4 A schematic diagram of the structure of the rotating loading module mechanism in the top view;

[0044] Fig.12 It is a structural schematic diagram of the clamp brake unit module mechanism of the present invention;

[0045] Fig.13 It is a flow chart of the experimental steps of the present invention.

[0046] In the figure:

[0047] 1. Base platform;

[0048] 2. Vertical loading module mechanism; 20. Clamp simulation disk; 21. Vertical floating joint; 22. Vertical servo electric cylinder; 23. Vertical force sensor; 24. Dust collection box; 25. Vertical guide rail assembly; 26. Vertical mounting seat;

[0049] 3. Lateral loading module mechanism; 30. Lateral slide; 31. Lateral floating joint; 32. Lateral servo electric cylinder; 33. Lateral guide rail assembly; 34. Lateral force sensor;

[0050] 4. Longitudinal loading module mechanism; 40. Longitudinal slide; 41. Longitudinal floating joint; 42. Longitudinal servo electric cylinder; 43. Longitudinal mounting seat; 44. Longitudinal force sensor; 45. Longitudinal guide rail assembly;

[0051] 5. Rotating loading module mechanism; 50. Rotating support; 51. Rotating support; 52. Rotating servo motor; 53. Arc sliding hole; 54. Support block; 55. Pin rod;

[0052] 6. Clamp brake unit module mechanism; 60. Gantry; 61. Clamp brake unit body. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] In the description of the present invention, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention; in the description of the present invention, the meaning of "multiple" and "several" is at least two, for example two, three, etc., unless otherwise clearly and specifically defined.

[0055] See also Figures 1 to 4 As shown, the present invention is a novel clamp brake unit dynamic fatigue test device, comprising a base platform 1, a clamp brake unit module mechanism 6 is arranged at one longitudinal end of the base platform 1, and a vertical loading module mechanism 2, a transverse loading module mechanism 3, a longitudinal loading module mechanism 4 and a rotational loading module mechanism 5 are arranged at the other longitudinal end; by arranging the clamp brake unit module mechanism 6, the vertical loading module mechanism 2, the transverse loading module mechanism 3, the longitudinal loading module mechanism 4 and the rotational loading module mechanism 5 on the base platform 1, the fatigue test process under various actual working conditions can be met, so as to obtain fatigue test data results with better accuracy, and the reliability and durability of the clamp brake unit under various actual working conditions can be more truly verified.

[0056] The vertical loading module mechanism 2 is provided with a clamp simulation disk 20 adapted to the clamp brake unit body 61. The clamp simulation disk 20 is driven by the vertical loading module mechanism 2 to make vertical contact with the clamp brake unit body 61 to realize dynamic fatigue testing of the tangential force load of the clamp brake unit body 61.

[0057] The lateral loading module mechanism 3 includes a lateral slide 30, on which the vertical loading module mechanism 2 is assembled and installed. The lateral loading module mechanism 3 drives the clamp simulation disk 20 to make lateral contact with the clamp brake unit body 61, thereby realizing a dynamic fatigue test of the lateral force load of the clamp brake unit body 61.

[0058] The longitudinal loading module mechanism 4 is slidably connected to the transverse loading module mechanism 3, and the longitudinal loading module mechanism 4 includes a longitudinal slide 40, and the longitudinal slide 40 is slidably connected to the transverse slide 30. The longitudinal loading module mechanism 4 drives the clamp simulation disk 20 to make longitudinal contact with the clamp brake unit body 61, thereby realizing a dynamic fatigue test of the longitudinal force load of the clamp brake unit body 61.

[0059] The rotary loading module mechanism 5 is arranged below the longitudinal loading module mechanism 4, and the rotary loading module mechanism 5 includes a rotary support 50, which is slidably connected to the longitudinal slide 40. The rotary loading module mechanism 5 makes reciprocating rotational contact between the clamp simulation disk 20 and the clamp brake unit body 61, thereby realizing a dynamic fatigue test of the reciprocating vibration force load of the clamp brake unit body 61.

[0060] During the operation and application of the dynamic fatigue testing device of the present application, the vertical loading module mechanism 2 can drive the clamp simulation disk 20 to move vertically up and down to adjust the vertical relative position between the clamp simulation disk 20 and the clamp brake unit body 61, so as to realize the dynamic fatigue test of the tangential force load of the clamp brake unit body 61; the lateral loading module mechanism 3 can drive the clamp simulation disk 20 to move horizontally to adjust the lateral relative position between the clamp simulation disk 20 and the clamp brake unit body 61, so as to realize the dynamic fatigue test of the lateral force load of the clamp brake unit body 61; the longitudinal loading module mechanism 4 can drive the clamp simulation disk 20 to move longitudinally to adjust the longitudinal relative position between the clamp simulation disk 20 and the clamp brake unit body 61, so as to realize the dynamic fatigue test of the longitudinal force load of the clamp brake unit body 61; the rotation loading module mechanism 5 can drive the clamp simulation disk 20 to rotate back and forth to adjust the reciprocating rotation contact relative position between the clamp brake unit body 61 and the clamp simulation disk 20, so as to realize the dynamic fatigue test of the reciprocating vibration force load of the clamp brake unit body 61.

[0061] During the operation and application of the dynamic fatigue testing device of the present application, the vertical loading module mechanism 2, the lateral loading module mechanism 3, the longitudinal loading module mechanism 4 and the rotational loading module mechanism 5 can be operated separately to perform dynamic fatigue tests, or multiple working condition mechanisms can be linked and combined to perform dynamic fatigue tests, which can more accurately simulate the working conditions and environment of the clamp brake unit 61 during actual operation.

[0062] During the operation and application of the dynamic fatigue testing device of the present application, various working conditions mechanisms on the base platform 1 realize four degrees of freedom (vertical, lateral, longitudinal, rotational reciprocating vibration) loading of the caliper brake unit 61 for dynamic fatigue testing, which can truly simulate the relative position relationship between the caliper brake unit 61 and the caliper simulation disk 20, thereby satisfying the fatigue test process under a variety of actual working conditions and environmental conditions, so as to obtain more accurate fatigue test data results, and more truly verify the reliability and durability of the tread brake unit under a variety of actual working conditions and environmental conditions.

[0063] How to implement the dynamic fatigue test of the tangential force load of the caliper brake unit body 61 will be described in detail below.

[0064] In this specific implementation mode, Figure 5 As shown, the vertical loading module mechanism 2 includes a vertical servo electric cylinder 22, the telescopic end of the vertical servo electric cylinder 22 is connected to the clamp simulation disk 20 through a vertical floating joint 21, the clamp simulation disk 20 is slidably connected to the transverse slide 30 through a vertical guide rail assembly 25, and the vertical servo electric cylinder 22 is fixedly connected to the transverse slide 30 through a vertical mounting seat 26; in the process of realizing the dynamic fatigue test of the tangential force load of the clamp brake unit 61, the clamp simulation disk 20 is driven by the vertical servo electric cylinder 22 to move up and down along the transverse slide 30, so that the clamp simulation disk 20 can be pushed up and down, thereby adjusting the vertical relative position between the clamp simulation disk 20 and the clamp brake unit 61, so as to realize the vertical degree of freedom loading of the clamp brake unit 61 for dynamic fatigue test.

[0065] In this specific implementation mode, Figure 5 As shown, a vertical force sensor 23 is provided between the vertical floating joint 21 and the clamp simulation disk 20, so as to obtain the tangential force data of the clamp brake unit 61 in real time through the vertical force sensor 23, which is convenient for recording and analysis.

[0066] It is important to understand that Figure 5 As shown, when the clamp simulation disk 20 is slidably connected to the transverse slide seat 30 through the vertical guide rail assembly 25, the vertical guide rail assembly 25 is composed of a guide rail bar and a slider matched therewith to ensure the stability of the up and down test movement of the clamp simulation disk 20.

[0067] It is important to understand that Figure 5As shown, a dust collecting box 24 is disposed directly below the clamp simulation disk 20 , and the dust collecting box 24 is fixedly connected to the transverse slide seat 30 , so that the friction debris generated by the test can be collected by the dust collecting box 24 .

[0068] How to implement the dynamic fatigue test of the lateral force load of the caliper brake unit 61 will be described in detail below.

[0069] In this specific implementation mode, Figure 6 and Figure 7 As shown, the lateral loading module mechanism 3 includes a lateral servo electric cylinder 32, which is fixedly mounted on the longitudinal slide 40, and the telescopic end of the lateral servo electric cylinder 32 is connected to the lateral slide 30 via a lateral floating joint 31, and the lateral slide 30 is slidably connected to the longitudinal slide 40 via a lateral guide rail assembly 33; in the process of realizing the dynamic fatigue test of the lateral force load on the clamp brake unit 61, the lateral slide 30 is driven by the lateral servo electric cylinder 32 to slide laterally along the longitudinal slide 40, so that the clamp simulation disk 20 can slide laterally synchronously, thereby adjusting the lateral relative position between the clamp simulation disk 20 and the clamp brake unit 61, so as to realize the lateral degree of freedom loading of the clamp brake unit 61 for dynamic fatigue test.

[0070] In this specific implementation mode, Figure 6 and Figure 7 As shown, a lateral force sensor 34 is provided on the tail end of the lateral floating joint 31 penetrating the longitudinal slide 40, so that the lateral force data of the clamp brake unit 61 can be obtained in real time through the lateral force sensor 34, which is convenient for recording and analysis.

[0071] It is important to understand that Figure 6 and Figure 7 As shown, when the transverse slide 30 is slidably connected to the longitudinal slide 40 through the transverse guide rail assembly 33, the transverse guide rail assembly 33 is composed of a guide rail bar and a sliding block matched therewith to ensure that the transverse slide 30 is stable in the transverse sliding test.

[0072] How to implement the dynamic fatigue test of the longitudinal force load of the caliper brake unit 61 will be described in detail below.

[0073] In this specific implementation mode, Figure 8 and Fig. 9As shown, the longitudinal loading module mechanism 4 includes a longitudinal servo electric cylinder 42, which is fixedly mounted on the rotating support 50 through a longitudinal mounting seat 43, and the telescopic end of the longitudinal servo electric cylinder 42 is connected to the longitudinal slide 40 through a longitudinal floating joint 41, and the longitudinal slide 40 is slidably connected to the rotating support 50 through a longitudinal guide rail assembly 45; in the process of realizing the dynamic fatigue test of the longitudinal force load of the clamp brake unit 61, the longitudinal slide 40 is driven by the longitudinal servo electric cylinder 42 to perform a longitudinal sliding action along the rotating support 50, so that the clamp simulation disk 20 can synchronously slide longitudinally, thereby adjusting the longitudinal relative position between the clamp simulation disk 20 and the clamp brake unit 61, so as to realize the longitudinal degree of freedom loading of the clamp brake unit 61 for dynamic fatigue test.

[0074] In this specific implementation mode, Figure 8 and Fig. 9 As shown, a longitudinal force sensor 44 is provided between the longitudinal floating joint 41 and the longitudinal slide 40, so as to obtain the longitudinal force data of the caliper brake unit 61 in real time through the longitudinal force sensor 44, so as to facilitate recording and analysis.

[0075] It is important to understand that Figure 8 and Fig. 9 As shown, when the longitudinal slide 40 is slidably connected to the rotating support 50 through the longitudinal guide rail assembly 45, the longitudinal guide rail assembly 45 is composed of a guide rail bar and a sliding block matched therewith to ensure that the longitudinal slide 40 performs a stable longitudinal sliding test.

[0076] How to implement a dynamic fatigue test of the caliper brake unit body 61 simulating a reciprocating vibration force load will be described in detail below.

[0077] In this specific implementation mode, Fig.10 and Fig.11As shown, the rotary loading module mechanism 5 includes a rotary servo motor 52 fixedly mounted on the base platform 1, the driving end of the rotary servo motor 52 is transmission-connected to the slewing support 51, the slewing support 51 is rotatably connected to the base platform 1, and the slewing support 51 is fixedly connected to the rotary support 50, and the four corners of the rotary support 50 are provided with support blocks 54 in contact with the base platform 1, the support blocks 54 are detachably connected to the base platform 1 through pins 55, and the pins 55 are slidably mounted in arc-shaped sliding holes 53 opened on the rotary support 50; the clamp braking unit is realized In the dynamic fatigue test of the body 61 simulating the reciprocating vibration force load, the slewing support 51 is driven to rotate along the base platform 1 by rotating the servo motor 52. At this time, the locking connection between the pin rod 55 and the support block 54 and the base platform 1 is released, so that the pin rod 55 can rotate along the arc-shaped sliding hole 53, so that the clamp simulation disk 20 can perform limited reciprocating rotation along the arc-shaped sliding hole 53, so that the reciprocating rotation relative position between the clamp brake unit body 61 and the clamp simulation disk 20 can be adjusted, thereby realizing the dynamic fatigue test of the reciprocating vibration force load of the clamp brake unit body 61.

[0078] It should be understood that, during the static fatigue test, the pin 55 securely connects the support block 54 to the base platform 1 to limit the rotation of the rotating support platform 50 , thereby enabling static fatigue testing of the clamp brake unit 61 under various working conditions.

[0079] In this specific implementation mode, Fig.12 As shown, the clamp brake unit module mechanism 6 includes a gantry 60 and a clamp brake unit body 61. The gantry 60 is fixedly mounted on the base platform 1, and the clamp brake unit body 61 is suspended and connected to the gantry 60; it is convenient to install the clamp brake unit body 61 on the gantry 60 as a whole, and convenient for overall disassembly and use. At the same time, hanging tests can be carried out on clamp brake unit bodies 61 of different specifications to meet the fatigue test requirements of various clamp test objects.

[0080] Combination Fig.13 As shown, the present invention also provides a test method using the novel clamp brake unit dynamic fatigue test device as described above, comprising the following steps:

[0081] The frequency and number of inflation and exhaust actions of the caliper brake unit 61 are programmed through the control system.

[0082] The vertical loading module mechanism 2 is controlled by the control system to adjust the vertical relative position between the clamp brake unit body 61 and the clamp simulation disk 20 to achieve a dynamic fatigue test of the tangential force load of the clamp brake unit body 61.

[0083] The control system controls the operation of the lateral loading module mechanism 3 to adjust the lateral relative position between the clamp brake unit body 61 and the clamp simulation disk 20, thereby realizing a dynamic fatigue test of the lateral force load of the clamp brake unit body 61.

[0084] The longitudinal loading module mechanism 4 is controlled by the control system to adjust the longitudinal relative position between the caliper brake unit body 61 and the caliper simulation disk 20 to achieve a dynamic fatigue test of the longitudinal force load of the caliper brake unit body 61 .

[0085] The control system controls the operation of the rotary loading module mechanism 5 to adjust the reciprocating rotation contact relative position between the clamp brake unit body 61 and the clamp simulation disk 20 to achieve a dynamic fatigue test of the reciprocating vibration force load of the clamp brake unit body 61.

[0086] The control system is used to set the action time of the above working condition mechanism, the single action time of the fatigue test, the total number of cycles, and the number of cycles of the current fatigue.

[0087] Among them, the control system can independently control the vertical loading module mechanism 2, the lateral loading module mechanism 3, the longitudinal loading module mechanism 4 and the rotational loading module mechanism 5 or control multiple working condition mechanisms in a linked and combined manner.

[0088] During the process of adopting this method, the frequency and number of inflation and exhaust actions of the caliper brake unit 61 are manipulated to make the caliper brake unit module mechanism 6 contact the caliper simulation disk 20, and the contact braking pressure is loaded. Under the action of the vertical loading module mechanism 2, the lateral loading module mechanism 3, the longitudinal loading module mechanism 4 and the rotational loading module mechanism 5, various working conditions are applied to the caliper brake unit 61 and the caliper simulation disk 20 according to the test requirements, so as to realize four-degree-of-freedom (vertical, lateral, longitudinal, and rotational reciprocating contact) loading of the caliper brake unit 61 for dynamic fatigue testing. The relative position relationship between the caliper brake unit 61 and the caliper simulation disk 20 can be truly simulated, so as to meet the fatigue test process under various actual working conditions and environmental conditions, so as to obtain fatigue test data results with better accuracy, and to more truly verify the reliability and durability of the caliper brake unit under various actual working conditions and environmental conditions.

[0089] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A new type of clamp brake unit dynamic fatigue test device, characterized in that: The base platform (1) comprises a clamp brake unit module mechanism (6) at one longitudinal end thereof, and a vertical loading module mechanism (2), a transverse loading module mechanism (3), a longitudinal loading module mechanism (4) and a rotation loading module mechanism (5) at the other longitudinal end thereof; The vertical loading module mechanism (2) is provided with a clamp simulation disk (20) adapted to the clamp brake unit body (61), and the clamp simulation disk (20) is driven by the vertical loading module mechanism (2) to make vertical contact with the clamp brake unit body (61), thereby realizing a dynamic fatigue test of the tangential force load of the clamp brake unit body (61); The transverse loading module mechanism (3) comprises a transverse slide (30), on which the vertical loading module mechanism (2) is assembled and mounted, and the transverse loading module mechanism (3) drives the clamp simulation disk (20) to make transverse contact with the clamp brake unit body (61), thereby realizing a dynamic fatigue test of the transverse force load of the clamp brake unit body (61); The longitudinal loading module mechanism (4) is slidably connected to the transverse loading module mechanism (3), the longitudinal loading module mechanism (4) comprises a longitudinal slide seat (40), the longitudinal slide seat (40) is slidably connected to the transverse slide seat (30), and the longitudinal loading module mechanism (4) drives the clamp simulation disk (20) to make longitudinal contact with the clamp brake unit body (61), thereby realizing a dynamic fatigue test of the longitudinal force load of the clamp brake unit body (61); The rotary loading module mechanism (5) is arranged below the longitudinal loading module mechanism (4), and the rotary loading module mechanism (5) comprises a rotary support (50), and the longitudinal slide seat (40) is slidably connected to the rotary support (50), and the clamp simulation disk (20) and the clamp brake unit body (61) are reciprocatingly rotated through the rotary loading module mechanism (5), so as to realize a dynamic fatigue test of the reciprocating vibration force load of the clamp brake unit body (61); The rotary loading module mechanism (5) comprises a rotary servo motor (52) fixedly mounted on the base platform (1); a driving end of the rotary servo motor (52) is transmission-connected to a slewing support (51); the slewing support (51) is rotatably connected to the base platform (1); and the slewing support (51) is fixedly connected to the rotary support platform (50); support blocks (54) in contact with the base platform (1) are provided at four corners of the rotary support platform (50); the support blocks (54) are detachably connected to the base platform (1) via a pin rod (55); and the pin rod (55) is slidably mounted in an arc-shaped sliding hole (53) provided on the rotary support platform (50).

2. The new clamp brake unit dynamic fatigue test device according to claim 1 is characterized in that: The vertical loading module mechanism (2) comprises a vertical servo electric cylinder (22), the telescopic end of the vertical servo electric cylinder (22) is connected to the clamp simulation disk (20) via a vertical floating joint (21), the clamp simulation disk (20) is slidably connected to the transverse slide (30) via a vertical guide rail assembly (25), and the vertical servo electric cylinder (22) is fixedly connected to the transverse slide (30) via a vertical mounting seat (26).

3. The new clamp brake unit dynamic fatigue test device according to claim 2 is characterized in that: A vertical force sensor (23) is provided between the vertical floating joint (21) and the clamp simulation plate (20).

4. The new clamp brake unit dynamic fatigue test device according to claim 1 is characterized in that: The transverse loading module mechanism (3) comprises a transverse servo electric cylinder (32), wherein the transverse servo electric cylinder (32) is fixedly mounted on the longitudinal slide (40), wherein the telescopic end of the transverse servo electric cylinder (32) is connected to the transverse slide (30) via a transverse floating joint (31), and the transverse slide (30) is slidably connected to the longitudinal slide (40) via a transverse guide rail assembly (33).

5. The novel clamp brake unit dynamic fatigue test device according to claim 4 is characterized in that: A lateral force sensor (34) is provided on the tail end of the lateral floating joint (31) that passes through the longitudinal slide seat (40).

6. The novel clamp brake unit dynamic fatigue test device according to claim 1 is characterized in that: The longitudinal loading module mechanism (4) comprises a longitudinal servo electric cylinder (42), wherein the longitudinal servo electric cylinder (42) is fixedly mounted on the rotating support (50) via a longitudinal mounting seat (43), wherein the telescopic end of the longitudinal servo electric cylinder (42) is connected to the longitudinal slide (40) via a longitudinal floating joint (41), and the longitudinal slide (40) is slidably connected to the rotating support (50) via a longitudinal guide rail assembly (45).

7. The novel clamp brake unit dynamic fatigue test device according to claim 6 is characterized in that: A longitudinal force sensor (44) is provided between the longitudinal floating joint (41) and the longitudinal slide seat (40).

8. The novel clamp brake unit dynamic fatigue test device according to claim 1 is characterized in that: The clamp brake unit module mechanism (6) comprises a gantry (60) and a clamp brake unit body (61); the gantry (60) is fixedly mounted on the base platform (1), and the clamp brake unit body (61) is suspended and connected to the gantry (60).

9. The test method using the new clamp brake unit dynamic fatigue test device as claimed in claim 1 is characterized in that: The following steps are involved: Programming the frequency and number of inflation and exhaust actions of the clamp brake unit (61) through a control system; The vertical loading module mechanism (2) is controlled by a control system to adjust the vertical relative position between the clamp brake unit body (61) and the clamp simulation disk (20), thereby realizing a dynamic fatigue test of the tangential force load of the clamp brake unit body (61); The control system controls the operation of the lateral loading module mechanism (3) to adjust the lateral relative position between the clamp brake unit body (61) and the clamp simulation disk (20), thereby realizing a dynamic fatigue test of the lateral force load of the clamp brake unit body (61); The longitudinal loading module mechanism (4) is controlled by a control system to adjust the longitudinal relative position between the clamp brake unit body (61) and the clamp simulation disk (20), thereby realizing a dynamic fatigue test of the longitudinal force load of the clamp brake unit body (61); The control system controls the operation of the rotary loading module mechanism (5) to adjust the reciprocating rotation contact relative position between the clamp brake unit body (61) and the clamp simulation disk (20), thereby realizing a dynamic fatigue test of the reciprocating vibration force load of the clamp brake unit body (61); The control system is used to set the action time of the working mechanism, the single action time of the fatigue test, the total number of cycles, and the number of cycles of the current fatigue; The control system can independently control the vertical loading module mechanism (2), the transverse loading module mechanism (3), the longitudinal loading module mechanism (4) and the rotary loading module mechanism (5) or control the multiple working mode mechanisms in a coordinated manner.

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