Multi-directional fatigue loading test system for large spring of multifunctional high-speed railway locomotive

Abstract

The invention discloses a multifunctional multidirectional fatigue loading test system for a large spring of a high-speed railway locomotive, and relates to the technical field of spring fatigue loading. The device comprises a loading support assembly, the loading support assembly comprises a loading support table, two vertical actuators are arranged above the loading support table, a horizontal actuator is installed on the upper surface of the loading support table, a loading test assembly is arranged on the upper surface of the loading support table, and the loading test assembly comprises a test pressure plate. A limiting assembly is fixedly installed on the upper surface of the loading test assembly and comprises a transmission supporting block, and a limiting clamping plate is fixedly connected to the upper surface of the transmission supporting block. According to the invention, the transmission supporting block is controlled to move horizontally, the limiting clamping plate is driven to move synchronously and horizontally, the position of the spring is limited, the vertical actuator is started, and horizontal actuation is carried out to carry out longitudinal and transverse fatigue loading tests on the spring, so that the multidirectional fatigue loading test on the spring is realized; and the accuracy of a test result is prevented from being influenced by spring offset during test.

Description

Technical Field

[0001] The present invention belongs to the technical field of spring fatigue loading, and particularly relates to a multi-functional multi-directional fatigue loading test system for large springs of high-speed rail locomotives. Background Technique

[0002] The main purpose of the spring fatigue loading test is to determine how many times a spring can withstand cyclic loading under specific working conditions without breaking or experiencing a significant decline in performance. Through this test, key data can be provided for the design, material selection, and quality control of the spring, ensuring that the spring has sufficient lifespan and reliability in actual applications, and providing strong guarantees for the quality and safety of the product.

[0003] When a common spring is subjected to a fatigue loading test, it is loaded by applying variable amplitude loads to the spring, and relevant parameters of the spring are recorded for the test. However, in actual use, the external force applied to the spring is limited to a single direction, and the spring is prone to displacement during loading, affecting the test results. For this reason, we provide a multi-functional multi-directional fatigue loading test system for large springs of high-speed rail locomotives to solve the above technical problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a multi-functional multi-directional fatigue loading test system for large springs of high-speed rail locomotives. Through the specific structural design of the loading support assembly, the loading test assembly, and the limiting assembly, the problems in the above technical background are solved.

[0005] To solve the above technical problems, the present invention is realized through the following technical solutions: The present invention is a multi-functional multi-directional fatigue loading test system for large springs of high-speed rail locomotives, including a loading support assembly. The loading support assembly includes a loading support table, two vertical actuators symmetrically arranged above the loading support table, and a horizontal actuator installed on the upper surface of the loading support table. Two loading test assemblies are snap-fitted on the upper surface of the loading support table. One of the loading test assemblies is placed horizontally, and the other is placed longitudinally. The loading test assembly includes a test pressure plate that can move up and down. A limiting assembly is fixedly installed on the upper surface of the loading test assembly. The limiting assembly includes a number of transmission support blocks that can move horizontally. The upper surface of the transmission support block is fixedly connected to a limiting clamping plate through a support column.

[0006] The present invention is further configured such that two vertical support seats are symmetrically and fixedly connected to the upper surface of the loading support platform. A horizontal support platform is fixedly connected between the two vertical support seats. Two regulating support plates are symmetrically and slidably arranged on opposite sides of the horizontal support platform. Two adjacent regulating support plates are connected by a regulating mounting column. The vertical actuator is fixedly installed on the lower surface of the corresponding regulating support plate. The output end of the vertical actuator is fixedly connected to a loading transmission block. Hinge seats are rotatably connected to opposite sides of the loading transmission block. The hinge seats are fixedly connected to the upper surface of the corresponding test loading plate.

[0007] The present invention is further configured such that the loading test assembly further includes a test support platform that is snap-fitted with the loading support platform. Two hollow support seats are symmetrically and fixedly connected to opposite sides of the test support platform. A transverse support seat can be connected between two adjacent hollow support seats. A guiding slideway is provided on one side surface of the hollow support seat. The test loading plate is slidably arranged between the hollow support seats through an extension block. The extension block is slidably engaged with the corresponding guiding slideway. An electromagnet is fixedly connected to the upper surface of the hollow support seat. A magnetic attracting iron is fixedly connected to the upper surface of the extension block. And the test support platform of the longitudinally arranged loading test assembly is fixedly connected to the output end of the horizontal actuator.

[0008] The present invention is further configured such that the limiting assembly further includes a hollow limiting platform fixedly connected to the upper surface of the test support platform. A plurality of driving external gear rings are rotatably connected to the inner bottom of the hollow limiting platform. A plurality of limiting regulation grooves are symmetrically provided on the surface of the driving external gear ring. One inner side wall of the limiting regulation groove is of an inclined sliding surface structure. One end of the driving support block is slidably engaged with the corresponding limiting regulation groove. A partition block corresponding to the limiting regulation groove is rotatably connected to the inner side wall of the driving external gear ring. The partition block is fixedly connected to the inner bottom of the hollow limiting platform. A limiting channel is formed between two adjacent partition blocks. A limiting support block is fixedly connected inside the limiting channel.

[0009] The present invention is further configured such that a guiding cross column is slidably arranged on the surface of the limiting support block. The driving support block is fixedly connected to the corresponding guiding cross column. A return spring is fixedly connected between the driving support block and the limiting support block. The return spring is sleeved outside the guiding cross column. A limiting driving rack is slidably arranged on the inner bottom of the hollow limiting platform. The limiting driving rack is meshed with the driving external gear ring. And a limiting slideway corresponding to the driving external gear ring is provided on the upper surface of the hollow limiting platform. The support column is slidably engaged with the corresponding limiting slideway.

[0010] The present invention has the following beneficial effects: 1. By providing a loading support component and a loading test component, the springs to be tested are respectively placed on the horizontally and vertically placed loading test components. The vertical actuator drives the test pressing plate to move downward, and the horizontal actuator drives the corresponding test support table to move horizontally, so as to realize the horizontal and vertical fatigue loading tests for multiple fatigue loading tests.

[0011] 2. By providing a limiting component, the limiting transmission rack is controlled to move horizontally, driving the transmission outer gear ring to rotate synchronously. Under the sliding fit of the limiting control groove and the transmission support block, the transmission support block moves horizontally, and then drives the limiting clamping plates to move synchronously and approach each other until the limiting clamping plates are in contact with the peripheral side of the spring, so as to realize the position limitation of the spring and avoid the movement of the spring during the loading test from affecting the test effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0013] Figure 1 It is a schematic structural diagram of a multi-functional multi-directional fatigue loading test system for large springs of high-speed rail locomotives.

[0014] Figure 2 It is a schematic structural diagram of the loading support component in the present invention.

[0015] Figure 3 It is a schematic structural diagram of the loading test component in the present invention.

[0016] Figure 4 It is a schematic structural diagram of the loading test component from another angle in the present invention.

[0017] Figure 5 It is Figure 4 a partial enlarged schematic diagram of part A in

[0018] Figure 6 It is a schematic structural diagram of the limiting component in the present invention.

[0019] Figure 7 It is a horizontal structural sectional view of the limiting component in the present invention.

[0020] Figure 8 It is Figure 7 a schematic structural diagram of another angle of

[0021] In the drawings, the list of components represented by each reference numeral is as follows:

[0022] 1 - Loading support assembly, 101 - Loading support platform, 102 - Vertical actuator, 103 - Vertical support base, 104 - Horizontal support platform, 105 - Regulation support plate, 106 - Regulation mounting column, 107 - Loading drive block, 2 - Loading test assembly, 201 - Test pressure plate, 202 - Test support platform, 203 - Hollow support base, 204 - Lateral support base, 205 - Guide slideway, 206 - Electromagnet, 207 - Magnetic iron, 3 - Limit assembly, 301 - Drive support block, 302 - Limit clamping plate, 303 - Hollow limit platform, 304 - Drive external gear ring, 305 - Limit regulation groove, 306 - Partition block, 307 - Limit support block, 308 - Guide cross column, 309 - Return spring, 310 - Limit drive rack, 311 - Limit slideway. Detailed implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0024] For the first specific embodiment, please refer to Figures 1-8 , the present invention is a multi-functional multi-directional fatigue loading test system for large springs of high-speed rail locomotives, including a loading support assembly 1. Specifically, the loading support assembly 1 includes a loading support platform 101, two vertical actuators 102 symmetrically arranged above the loading support platform 101, and a horizontal actuator installed on the upper surface of the loading support platform 101; two loading test assemblies 2 are clamped and matched on the upper surface of the loading support platform 101, one of the loading test assemblies 2 is placed horizontally, and the other loading test assembly 2 is placed longitudinally. The loading test assembly 2 includes a test pressure plate 201 that can move up and down.

[0025] Furthermore, a limit assembly 3 is fixedly installed on the upper surface of the loading test assembly 2. The limit assembly 3 includes a number of drive support blocks 301 that can move horizontally, and a limit clamping plate 302 is fixedly connected to the upper surface of the drive support block 301 through a support column.

[0026] The operation process of this embodiment is as follows: Place the springs to be tested on the horizontally placed and vertically placed loading test components 2 respectively. Control the horizontal movement of the transmission support block 301 to drive the limit clamping plate 302 to move synchronously until the limit clamping plate 302 fits against the circumferential side surface of the spring. Drive the two test pressure plates 201 to move downward synchronously through the two vertical actuators 102. The test pressure plates 201 press down on the springs to conduct longitudinal fatigue loading tests. Control the horizontal actuator to drive the vertically placed loading test component 2 to move, and then drive the springs on this loading test component 2 to move horizontally synchronously to conduct transverse fatigue loading tests.

[0027] Specific embodiment two, please refer to Figures 1-8 , on the basis of specific embodiment one, specifically, two vertical support seats 103 are symmetrically and fixedly connected to the upper surface of the loading support platform 101. A horizontal support platform 104 is fixedly connected between the two vertical support seats 103. Two regulating support plates 105 are symmetrically and slidably arranged on the opposite side surfaces of the horizontal support platform 104. Two adjacent regulating support plates 105 are connected through a regulating mounting column 106; the vertical actuator 102 is fixedly installed on the lower surface of the corresponding regulating support plate 105. The output end of the vertical actuator 102 is fixedly connected to a loading transmission block 107. Hinge seats are rotatably connected to the opposite side surfaces of the loading transmission block 107, and the hinge seats are fixedly connected to the upper surface of the corresponding test pressure plate 201.

[0028] Furthermore, the loading test component 2 further includes a test support platform 202 that is snap-fitted with the loading support platform 101. Two hollow support seats 203 are symmetrically and fixedly connected to the opposite side surfaces of the test support platform 202. A transverse support seat 204 can be connected between two adjacent hollow support seats 203. A guiding slideway 205 is provided on one side surface of the hollow support seat 203; the test pressure plate 201 is slidably arranged between the hollow support seats 203 through an extension block. The extension block is slidably matched with the corresponding guiding slideway 205. An electromagnet 206 is fixedly connected to the upper surface of the hollow support seat 203. A magnetic attracting iron 207 is fixedly connected to the upper surface of the extension block. And the test support platform 202 of the vertically placed loading test component 2 is fixedly connected to the output end of the horizontal actuator.

[0029] Further, the limiting component 3 further includes a hollow limiting platform 303 fixedly connected to the upper surface of the test support platform 202. A plurality of driving external gear rings 304 are rotatably connected to the inner bottom of the hollow limiting platform 303. A plurality of limiting control grooves 305 are symmetrically formed on the surface of the driving external gear ring 304. One inner side wall of the limiting control groove 305 is of an inclined sliding surface structure. One end of the driving support block 301 is slidably engaged with the corresponding limiting control groove 305. A partition block 306 corresponding to the limiting control groove 305 is rotatably connected to the inner side wall of the driving external gear ring 304. The partition block 306 is fixedly connected to the inner bottom of the hollow limiting platform 303. A limiting channel is formed between two adjacent partition blocks 306. A limiting support block 307 is fixedly connected inside the limiting channel.

[0030] Further, a guiding cross column 308 is slidably arranged on the surface of the limiting support block 307. The driving support block 301 is fixedly connected to the corresponding guiding cross column 308. A return spring 309 is fixedly connected between the driving support block 301 and the limiting support block 307. The return spring 309 is sleeved outside the guiding cross column 308. A limiting driving rack 310 is slidably arranged on the inner bottom of the hollow limiting platform 303. The limiting driving rack 310 is meshed with the driving external gear ring 304. An electric telescopic rod is fixedly installed on one side surface of the hollow limiting platform 303. The output end of the electric telescopic rod is fixedly connected to the limiting driving rack 310. And a limiting slideway 311 corresponding to the driving external gear ring 304 is formed on the upper surface of the hollow limiting platform 303. The support column is slidably engaged with the corresponding limiting slideway 311.

[0031] The operation process of this embodiment is as follows: The springs to be tested are respectively placed on the horizontally placed and vertically placed hollow limiting platforms 303. The electric telescopic rod is started to drive the limiting driving rack 310 to move horizontally. Under the meshing action of the limiting driving rack 310 and the driving external gear ring 304, the driving external gear ring 304 rotates synchronously, thereby driving the limiting control groove 305 to move synchronously. Under the sliding cooperation between the inclined sliding surface of the limiting control groove 305 and the corresponding driving support block 301, the driving support block 301 moves horizontally. The support column slides along the corresponding limiting slideway 311 inside, thereby driving the limiting clamping plate 302 to move synchronously and approach each other. The guiding cross column 308 moves horizontally synchronously. The return spring 309 is compressed until the limiting clamping plate 302 is in contact with the circumferential side surface of the spring, realizing the position limitation of the spring. The electromagnet 206 is disconnected, and the magnetic action between the electromagnet 206 and the magnetic iron 207 disappears. The two test pressing plates 201 are respectively driven by the two vertical actuators 102 to move downward synchronously. The test pressing plate 201 presses the spring to perform a longitudinal fatigue loading test. The horizontal actuator is controlled to drive the longitudinally placed loading test assembly 2 to move, and the corresponding test support platform 202 moves horizontally, thereby driving the spring on the loading test assembly 2 to move horizontally synchronously, so as to perform a horizontal fatigue loading test.

[0032] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0033] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not elaborate all the details and do not limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A multi-functional multi-directional fatigue loading test system for large springs of high-speed rail locomotives, including a loading support assembly (1), characterized in that: The loading support assembly (1) includes a loading support platform (101), two vertical actuators (102) symmetrically arranged above the loading support platform (101), and a horizontal actuator is installed on the upper surface of the loading support platform (101); Two loading test assemblies (2) are clamped and matched on the upper surface of the loading support platform (101), one of the loading test assemblies (2) is placed horizontally, and the other loading test assembly (2) is placed longitudinally. The loading test assembly (2) includes a test pressure plate (201) that can move up and down; A limit assembly (3) is fixedly installed on the upper surface of the loading test assembly (2). The limit assembly (3) includes a number of transmission support blocks (301) that can move horizontally. A limit clamping plate (302) is fixedly connected to the upper surface of the transmission support block (301) through a support column.

2. The multifunctional large spring multi-directional fatigue loading test system for high-speed rail locomotives according to claim 1, wherein, Two vertical support seats (103) are symmetrically and fixedly connected to the upper surface of the loading support platform (101). A horizontal support platform (104) is fixedly connected between the two vertical support seats (103). Two regulating support plates (105) are symmetrically and slidably arranged on opposite sides of the horizontal support platform (104). Adjacent two regulating support plates (105) are connected by a regulating installation column (106).

3. A multi-functional multi-directional fatigue loading test system for large springs of high-speed rail locomotives according to claim 2, characterized in that, The vertical actuator (102) is fixedly installed on the lower surface of the corresponding regulating support plate (105). The output end of the vertical actuator (102) is fixedly connected to a loading transmission block (107). Hinge seats are rotatably connected to opposite sides of the loading transmission block (107), and the hinge seats are fixedly connected to the upper surface of the corresponding test pressure plate (201).

4. A multi-functional multi-directional fatigue loading test system for large springs of high-speed rail locomotives according to claim 3, characterized in that, The loading test assembly (2) further includes a test support platform (202) that is clamped and matched with the loading support platform (101). Two hollow support seats (203) are symmetrically and fixedly connected to opposite sides of the test support platform (202). A transverse support seat (204) can be connected between adjacent two hollow support seats (203). A guiding slideway (205) is provided on one side surface of the hollow support seat (203).

5. A multi-functional multi-directional fatigue loading test system for large springs of high-speed rail locomotives according to claim 4, characterized in that The test pressure plate (201) is slidably arranged between the hollow support seats (203) through an extension block. The extension block is slidably matched with the corresponding guiding slideway (205). An electromagnet (206) is fixedly connected to the upper surface of the hollow support seat (203), and a magnetic attracting iron (207) is fixedly connected to the upper surface of the extension block. And a fixed connection is made between the test support platform (202) of the longitudinally placed loading test assembly (2) and the output end of the horizontal actuator.

6. The multi-functional multi-directional fatigue loading test system for large springs of high-speed rail locomotives according to claim 5, characterized in that, The limiting component (3) further includes a hollow limiting platform (303) fixedly connected to the upper surface of the test support table (202). A plurality of transmission external gear rings (304) are rotatably connected to the inner bottom of the hollow limiting platform (303). A plurality of limiting control grooves (305) are symmetrically formed on the surface of the transmission external gear ring (304). One inner side wall of the limiting control groove (305) is of an inclined sliding surface structure. One end of the transmission support block (301) is slidably matched with the corresponding limiting control groove (305).

7. A multi-functional multi-directional fatigue loading test system for large springs of high-speed rail locomotives according to claim 6, characterized in that, A partition block (306) corresponding to the limiting control groove (305) is rotatably connected to the inner side wall of the transmission external gear ring (304). The partition block (306) is fixedly connected to the inner bottom of the hollow limiting platform (303). A limiting channel is formed between two adjacent partition blocks (306). A limiting support block (307) is fixedly connected to the inside of the limiting channel.

8. A multi-functional high-speed rail locomotive large spring multi-directional fatigue loading test system according to claim 7, characterized in that, A guiding cross column (308) is slidably arranged on the surface of the limiting support block (307). The transmission support block (301) is fixedly connected to the corresponding guiding cross column (308). A return spring (309) is fixedly connected between the transmission support block (301) and the limiting support block (307). The return spring (309) is sleeved outside the guiding cross column (308). A limiting transmission rack (310) is slidably arranged on the inner bottom of the hollow limiting platform (303). The limiting transmission rack (310) is meshed with the transmission external gear ring (304). A limiting slideway (311) corresponding to the transmission external gear ring (304) is formed on the upper surface of the hollow limiting platform (303). The support column is slidably matched with the corresponding limiting slideway (311).

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