A locomotive coupler physical performance testing platform and method

Abstract

The present invention belongs to the technical field of coupler physical performance testing equipment, and in particular to a locomotive coupler physical performance testing platform, comprising a base plate, a mounting frame fixedly mounted on the upper end surface of the base plate, a threaded rod rotatably connected between the two mounting frames via a bearing, a guide rod fixedly connected between the two mounting frames, a movable seat 1 and a movable seat 2 are slidably sleeved on the periphery of the guide rod, a threaded sleeve is threadedly sleeved on the periphery of the threaded rod, and the threaded sleeve is fixedly mounted on the movable seat 1, and a mounting plate 1 and a mounting plate 2 are fixedly mounted on the upper end surfaces of the movable seat 1 and the movable seat 2 respectively; the present invention enables the movable seat 2 to be slowly reset under the action of the reset component 1, which not only facilitates reuse in the later period, but also utilizes the principle of compressed air to replace traditional reset components such as springs through the cooperation of the piston cylinder and the piston block, thereby achieving a more gentle reset effect.

Description

Technical Field

[0001] The present invention relates to the technical field of coupler physical performance testing equipment, and in particular to a locomotive coupler physical performance testing platform and method. Background Art

[0002] In the locomotive manufacturing and maintenance industry, physical performance testing of locomotive couplers is crucial for ensuring operational safety. However, traditional locomotive coupler physical performance testing platforms suffer from numerous limitations and deficiencies in their design and application. These issues severely restrict the accuracy of test results and the reliability of the testing process.

[0003] First, traditional reset mechanisms rely primarily on mechanical components such as springs. This method often exhibits a rather abrupt nature during the reset process, failing to achieve a gentle reset of the locomotive coupler. Furthermore, due to the lack of effective tension monitoring methods, testers are unable to obtain real-time tension data during testing, making it difficult to accurately assess the physical properties of the locomotive coupler.

[0004] Secondly, when the locomotive coupler reaches the set tensile force limit during testing, traditional test platforms often lack an automatic disengagement mechanism, causing the equipment to continue applying tensile force. This can not only damage the locomotive coupler but also cause irreversible damage to the testing equipment. In addition, due to the lack of necessary support and protective measures during testing, the locomotive coupler is prone to bending or damage due to free fall when it is separated from the test platform, further affecting the accuracy of the test results.

[0005] Furthermore, traditional testing platforms often require manual shutdown after testing. This is not only inefficient but can also lead to equipment failure or damage due to improper operation. Furthermore, long-term operation of the equipment increases energy consumption and wear, shortening its service life. To address this issue, we provide a platform and method for testing the physical properties of locomotive couplers. Summary of the Invention

[0006] In order to solve the above problems, the present invention proposes a locomotive coupler physical performance testing platform and method to more accurately solve the problems raised in the above background technology.

[0007] The present invention is achieved through the following technical solutions:

[0008] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0009] The reset component 1 includes a mounting rod fixedly mounted on the upper surface of the base plate, the upper end of the mounting rod is fixedly connected to the piston cylinder, the side of the movable seat 2 is fixedly mounted with a Z-shaped plate 1, the surface of the Z-shaped plate 1 is fixedly connected to a connecting rod, the end of the connecting rod is fixedly mounted with a piston block, and the piston block piston is connected to the inner wall of the piston cylinder; a pressure display meter is fixedly mounted on the piston cylinder for displaying the internal pressure value of the piston cylinder;

[0010] A supporting and protecting mechanism for preventing the locomotive coupler from falling is connected between the base plate and the Z-shaped plate;

[0011] A stop structure for timely stopping is connected between the base plate and the movable seat.

[0012] Furthermore, the self-detaching component includes a rectangular through-slot formed on the surface of the first mounting plate, an arc-shaped limit block is inserted into the inner wall of the rectangular through-slot, and a reset component 2 is connected between the first mounting plate and the arc-shaped limit block;

[0013] The second reset component includes a strip-shaped placement groove opened on the side of the arc-shaped limit block, and a vertical fixing rod 1 is fixedly connected between the two end walls of the strip-shaped placement groove. The outer sleeve of the vertical fixing rod 1 is provided with a spring, and the spring is fixedly connected to the end wall of the rectangular through groove. The outer sleeve of the vertical fixing rod 1 is provided with a sliding sleeve block.

[0014] Furthermore, the support and protection mechanism includes a Z-shaped plate 2 fixedly mounted on the surface of the Z-shaped plate 1, a U-shaped mounting block fixedly mounted on the end of the Z-shaped plate 2, and the U-shaped mounting block is rotatably connected to a roller via a rotating shaft for rolling and supporting the locomotive coupler;

[0015] A guide groove is provided on the upper end surface of the base plate, and a guide sliding block is slidably connected to the inner wall of the guide groove. A second vertical fixing rod is fixedly connected to the upper end surface of the guide sliding block, and the upper end of the second vertical fixing rod is fixedly connected to the U-shaped mounting block for further support.

[0016] Furthermore, the stop structure includes a connecting block fixedly mounted on the upper surface of the base plate, a switch button fixedly mounted on the surface of the connecting block, an L-shaped block fixedly connected to the side of the movable seat, and a touch rod fixedly connected to the surface of the L-shaped block for touching the switch button to realize the rapid shutdown of the servo motor.

[0017] Furthermore, a mounting seat is fixedly installed at one end of the mounting bracket, a servo motor is fixedly installed on the mounting bracket through the mounting seat, and the output end of the servo motor is fixedly connected to one end of the threaded rod, a wire is electrically connected to the servo motor, and one end of the wire is electrically connected to the switch button.

[0018] Furthermore, the disassembly and assembly structure includes an N-shaped frame fixedly connected to the upper end surface of the second mounting plate, the upper end of the N-shaped frame is inserted with a plug pin, and the upper end surface of the second mounting plate is provided with a plug hole.

[0019] Furthermore, the arc-shaped limit block is designed to pass through the strip-shaped through-slot, and is similar to the locomotive coupler and moves synchronously with the movement of the moving seat, and one side of the upper end is designed to be arc-shaped for downward movement under force.

[0020] Furthermore, the plug pin passes through the through hole and is inserted into the inner wall of the plug hole, and the inner diameter of the plug hole is adapted to the designed outer diameter of the plug pin, so as to limit the movement of one end of the locomotive coupler.

[0021] Furthermore, the upper end of the sliding sleeve is fixedly connected to the end wall of the strip-shaped placement groove, and the lower end of the sliding sleeve is fixedly connected to the upper end surface of the spring.

[0022] Furthermore, a method for testing the physical properties of a locomotive coupler is provided, comprising a locomotive coupler physical properties testing platform according to claim 1, comprising the following steps:

[0023] Place the locomotive coupler on the first and second mounting plates, and allow the arc-shaped limit block to pass through the strip-shaped through slot and the plug pin to pass through the through hole and be inserted into the inner wall of the plug hole;

[0024] Then start the servo motor to drive the threaded rod to rotate. When the movable seat 1 moves, the locomotive coupler on the mounting plate 1 will be subjected to tension, which will cause the movable seat 2 to move accordingly. At this time, the piston block will move at the inner wall of the piston cylinder, forming a certain amount of air compression. When the compression cannot be further compressed, observe the pressure value on the pressure display and observe whether the locomotive coupler is deformed or broken. At this time, the arc-shaped limit block will also be squeezed and moved downward, thereby disengaging from the strip groove, so that the locomotive coupler is no longer subjected to the tension spring on the upper end surface.

[0025] When the locomotive coupler may fall during the test, the rollers on the Z-shaped plate 2 and the U-shaped mounting block will provide support to prevent it from falling directly and causing bending and damage to the equipment;

[0026] During the entire process, when the moving seat 1 moves to a certain position, the touch rod on the L-shaped block will touch the switch button; the switch button is electrically connected to the servo motor through a wire. When touched, it will quickly cut off the power supply of the servo motor, causing it to stop rotating, thereby stopping the movement of the moving seat 1 and avoiding power consumption caused by not stopping in time.

[0027] Beneficial effects of the present invention:

[0028] The present invention enables the movable seat 2 to be slowly reset under the action of the reset component 1, which not only facilitates subsequent reuse, but also achieves a more gentle reset effect by using the principle of compressed air to replace traditional reset components such as springs through the cooperation between the piston cylinder and the piston block; at the same time, the pressure display meter equipped on the piston cylinder can display the internal pressure value in real time, thereby indirectly reflecting the magnitude of the tensile force, providing a strong guarantee for the accuracy and safety of the test data; this design not only improves the practicability of the equipment, but also enhances the accuracy of the test.

[0029] The present invention fully considers the safety during the test process through the design of a self-detaching component; when the set tension limit is reached, the locomotive coupler can automatically detach from the mounting plate, thereby avoiding damage to the equipment or locomotive coupler due to the equipment continuing to apply tension after the test effect has been achieved; this design not only protects the test equipment, but also ensures the integrity of the locomotive coupler during the test process, providing strong support for normal use in the later stage.

[0030] During the test process of the present invention, the supporting and protective mechanism supports the locomotive coupler through components such as rollers and vertical rods, effectively preventing the locomotive coupler from bending due to falling when it is separated from the mounting plate; this design not only protects the equipment from damage, but also ensures the accuracy of the test results; at the same time, the design of the stop structure can quickly achieve a stopping effect when necessary, which not only saves power resources but also avoids rapid failure of the equipment due to long-term operation; this dual protection design not only improves the reliability and stability of the equipment, but also provides a strong guarantee for the safety and accuracy of the testing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A three-dimensional schematic diagram of an embodiment of the present invention;

[0032] Figure 2 This is a schematic structural diagram of a locomotive coupler after being disassembled according to an embodiment of the present invention;

[0033] Figure 3 This is a schematic structural diagram of a locomotive coupler according to an embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of the structural disassembly of an arc-shaped limit block and a mounting plate according to an embodiment of the present invention;

[0035] Figure 5 This is a cross-sectional view of the structure of a reset assembly according to an embodiment of the present invention;

[0036] Figure 6 An embodiment of the present invention Figure 2 A magnified view of the structure at point A;

[0037] Figure 7 An embodiment of the present invention Figure 4 A magnified view of the structure at point B.

[0038] In the figure: 1. Base plate; 2. Mounting frame; 3. Threaded rod; 4. Guide rod; 5. Movable seat 1; 6. Movable seat 2; 7. Threaded kit; 8. Laying plate 1; 9. Laying plate 2; 10. Locomotive coupler; 11. Strip groove; 12. Through hole; 13. Rectangular groove; 14. Arc-shaped stopper; 15. Strip placement groove; 16. Vertical fixing rod 1; 17. Spring; 18. Sliding sleeve; 19. Mounting rod; 20. Piston cylinder; 21. Z-type plate 1; 22. Connecting rod; 23. Piston block; 24. Pressure display gauge; 25. Z-type plate 2; 26. U-shaped mounting block; 27. Roller; 28. Guide groove; 29. ​​Guide slide block; 30. Vertical fixing rod 2; 31. Connecting block; 32. Switch button; 33. Mounting seat; 34. Servo motor; 35. Wire; 36. L-type block; 37. Touch rod; 38. N-type frame; 39. Connecting pin; 40. Connecting hole. DETAILED DESCRIPTION

[0039] In order to more clearly and completely illustrate the technical solution of the present invention, the present invention will be further described below with reference to the accompanying drawings.

[0040] Example

[0041] like Figure 1-Figure 7 As shown, one embodiment of the present invention provides a locomotive coupler physical performance testing platform. The platform body comprises a base plate 1, which serves as a stable foundation for the entire test platform. The base plate 1 is made of high-strength steel to ensure that it does not deform or move during testing. Two mounting brackets 2 are fixed to either side of the base plate 1. A high-strength threaded rod 3 is rotatably connected between them via precision bearings. One end of the threaded rod 3 is fixedly connected to the output of a servo motor 34, which drives the servo motor 34 for rotation. The rotation of the threaded rod 3 precisely controls the linear movement speed and distance of the moving seat 1 5. A guide rod 4 is arranged parallel to the threaded rod 3, with its ends fixed to the two mounting brackets 2. The moving seat 1 5 and the moving seat 2 6 are respectively connected to the guide rod 4 by a sliding mechanism to ensure stability and linearity during movement. The moving seat 1 5 is provided with a threaded sleeve 7 that cooperates with the threaded rod 3 to achieve movement. The mounting plate 1 8 and the mounting plate 2 9 are respectively fixed to the upper end surfaces of the moving seat 1 5 and the moving seat 2 6, and are used to place the locomotive coupler 10. The locomotive coupler 10 is provided with a strip-shaped through slot 11 and a through hole 12 to facilitate connection with the various components of the test platform. The surfaces of the mounting plate 1 8 and the mounting plate 2 9 are precision-machined to ensure a flat and smooth contact surface with the locomotive coupler 10.

[0042] Furthermore, a rectangular through-slot 13 is formed on the surface of mounting plate 18 to accommodate an arcuate stopper 14. Arcuate stopper 14, shaped to match the strip-shaped through-slot 11, is designed to move synchronously with the locomotive coupler 10 under tension. When the tension exceeds a set value, arcuate stopper 14, activated by spring 17, moves downward, disengaging from strip-shaped through-slot 11 and enabling the locomotive coupler 10 to self-disengage.

[0043] Reset component 2 includes a strip-shaped mounting slot 15, a vertical support rod 16, a spring 17, and a sliding sleeve 18. Spring 17 is mounted on vertical support rod 16, with one end secured to the end wall of rectangular slot 13 and the other end connected to arc-shaped stopper 14 via sliding sleeve 18. When arc-shaped stopper 14 moves downward, spring 17 is compressed; when the tension is removed, spring 17 returns to its original position, pushing arc-shaped stopper 14 back into its original position.

[0044] Furthermore, the mounting rod 19 is fixedly mounted on the upper end surface of the base plate 1 to support the piston cylinder 20 .

[0045] The piston cylinder 20 has an upper end fixedly connected to the mounting rod 19 and a piston block 23 and compressed air inside. The piston block 23 is fixedly connected to the side of the movable seat 26 through a connecting rod 22.

[0046] Pressure display gauge 24: fixedly mounted on the piston cylinder 20, used to display the pressure value inside the piston cylinder 20 in real time, thereby indirectly reflecting the magnitude of the pulling force.

[0047] When the movable seat 26 moves under the action of the pulling force, the piston block 23 moves in the piston cylinder 20, changing the internal pressure. After the test is completed, the compressed air in the piston cylinder 20 is slowly released, pushing the piston block 23 and the movable seat 26 to reset.

[0048] Furthermore, the second Z-shaped plate 25 is fixedly mounted on the surface of the first Z-shaped plate 21 and is used to support the roller 27 .

[0049] Roller 27: Rotatably connected to the U-shaped mounting block 26 via a rotating shaft, used to roll and support the locomotive coupler 10 during the test process to reduce friction and wear.

[0050] Guide groove 28 and guide slider 29: Guide groove 28 is provided on the upper surface of base plate 1, and guide slider 29 is slidably connected within guide groove 28. A second vertical support rod 30 is fixedly connected to the upper surface of guide slider 29, and the upper end of vertical support rod 30 is fixedly connected to U-shaped mounting block 26. This structure further enhances support stability.

[0051] Furthermore, the connecting block 31 is fixedly mounted on the upper surface of the base plate 1 and is used to support the switch button 32 .

[0052] The switch button 32 is connected to the power supply circuit of the servo motor 34 and is used to control the start and stop of the servo motor 34 .

[0053] L-shaped block 36 and touch rod 37: L-shaped block 36 is fixedly connected to the side of moving base 1 5, and touch rod 37 is fixedly connected to the surface of L-shaped block 36. When moving base 1 5 moves to the set position, touch rod 37 will touch switch button 32, quickly cutting off the power supply of servo motor 34 and achieving a quick stop.

[0054] Furthermore, the n-shaped frame 38 is fixedly connected to the upper end surface of the mounting plate 2 9 to support the plug pin 39.

[0055] Connector pin 39: Insertable into through-hole 12 of locomotive coupler 10 and connector hole 40 of mounting plate 29, enabling quick assembly and disassembly of locomotive coupler 10. The inner diameter of connector hole 40 matches the outer diameter of connector pin 39, ensuring a secure and reliable connection.

[0056] Working principle of the present invention: Test preparation: Place the locomotive coupler 10 on the mounting plate 1 8 and the mounting plate 2 9 and secure them with the assembly and disassembly structure. Ensure that the arc-shaped limit block 14 is correctly inserted into the strip-shaped through groove 11 and check whether the connection of each component is firm.

[0057] The test begins by activating servo motor 34, which rotates threaded rod 3. Through the interaction between threaded rod 3 and threaded sleeve 7, movable seat 1 5 moves toward movable seat 2 6, thereby applying tension to locomotive coupler 10. Simultaneously, pressure gauge 24 displays the magnitude of the tension in real time.

[0058] Tension Monitoring and Self-Disengagement: During the test, the tension is monitored in real time via pressure display gauge 24. When the tension exceeds the set value, the arc-shaped stopper 14, activated by spring 17, moves downward, disengaging from the strip-shaped slot 11, allowing the locomotive coupler 10 to self-disengage. At this point, rollers 27 continue to support the locomotive coupler 10, preventing damage from free fall.

[0059] Support, Protection, and Reset: During the test, roller 27 rolls and supports locomotive coupler 10, reducing friction and wear. Simultaneously, guide slide 29 and vertical support rod 2 30 further enhance support stability. After the test, the compressed air in piston cylinder 20 is slowly released, pushing piston block 23 and movable seat 2 6 back to their original position. At this point, arc-shaped stopper 14, under the action of spring 17, also returns to its initial position.

[0060] Quick stop: When the moving seat 1 5 moves to the set position, the touch rod 37 touches the switch button 32, quickly cutting off the power supply of the servo motor 34, and achieving a quick stop. At this time, the test platform stops working and waits for the next test.

[0061] Finally, it should be noted that while the basic concepts have been described above, it should be apparent to those skilled in the art that the detailed disclosure is provided merely as an example and does not constitute a limitation of this specification. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and revisions to this specification. Such modifications, improvements, and revisions are suggested throughout this specification and remain within the spirit and scope of the exemplary embodiments of this specification. Furthermore, this specification uses specific terms to describe the embodiments of this specification. For example, terms such as "one embodiment," "an embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic associated with at least one embodiment of this specification. Therefore, it should be emphasized and noted that references to "one embodiment," "an embodiment," or "an alternative embodiment" two or more times in different places in this specification do not necessarily refer to the same embodiment. Furthermore, certain features, structures, or characteristics of one or more embodiments of this specification may be appropriately combined. Furthermore, unless expressly provided in the claims, the order of the processing elements and sequences, the use of alphanumeric characters, or other designations described in this specification are not intended to limit the order of the processes and methods of this specification.

Claims

1. A locomotive coupler physical performance testing platform, comprising a base plate (1), characterized in that: The upper end surface of the base plate (1) is fixedly mounted with a mounting frame (2), a threaded rod (3) is rotatably connected between the two mounting frames (2) through a bearing, a guide rod (4) is fixedly connected between the two mounting frames (2), the periphery of the guide rod (4) is respectively slidably sleeved with a movable seat 1 (5) and a movable seat 2 (6), the periphery of the threaded rod (3) is threadedly sleeved with a threaded sleeve (7), and the threaded sleeve (7) is fixedly mounted with the movable seat 1 (5), and the upper end surfaces of the movable seat 1 (5) and the movable seat 2 (6) are respectively fixedly mounted with A mounting plate (8) and a mounting plate (9) are provided, and a locomotive coupler (10) is placed on the upper end surface of the mounting plate (8) and the mounting plate (9), and a strip-shaped through groove (11) and a through hole (12) are respectively provided on the locomotive coupler (10), and a self-detaching component is connected between the mounting plate (8) and the locomotive coupler (10); a disassembly structure is connected between the mounting plate (9) and the locomotive coupler (10); a reset component (1) for slowly resetting the movable seat (6) in the later stage is connected between the base plate (1) and the movable seat (6); The reset component 1 includes a mounting rod (19) fixedly mounted on the upper surface of the base plate (1), the upper end of the mounting rod (19) is fixedly connected to a piston cylinder (20), the side of the movable seat 2 (6) is fixedly mounted with a Z-shaped plate 1 (21), the surface of the Z-shaped plate 1 (21) is fixedly connected with a connecting rod (22), the end of the connecting rod (22) is fixedly mounted with a piston block (23), and the piston of the piston block (23) is connected to the inner wall of the piston cylinder (20); a pressure display gauge (24) is fixedly mounted on the piston cylinder (20) for displaying the internal pressure value of the piston cylinder (20); A supporting and protecting mechanism for preventing the locomotive coupler (10) from falling is connected between the base plate (1) and the Z-shaped plate (21); A stop structure for timely stopping is connected between the base plate (1) and the movable seat (5); The self-detaching assembly includes a rectangular through-slot (13) formed on the surface of the first mounting plate (8), an arc-shaped limiting block (14) is inserted into the inner wall of the rectangular through-slot (13), and a reset component 2 is connected between the first mounting plate (8) and the arc-shaped limiting block (14); The second reset component includes a strip-shaped placement groove (15) provided on the side of the arc-shaped limit block (14), a vertical fixing rod (16) is fixedly connected between the two end walls of the strip-shaped placement groove (15), a spring (17) is provided on the outer sleeve of the vertical fixing rod (16), and the spring (17) is fixedly connected to the end wall of the rectangular through groove (13), and a sliding sleeve (18) is provided on the outer sleeve of the vertical fixing rod (16); The supporting and protecting mechanism comprises a Z-shaped plate 2 (25) fixedly mounted on the surface of the Z-shaped plate 1 (21), a U-shaped mounting block (26) fixedly mounted on the end of the Z-shaped plate 2 (25), and a roller (27) rotatably connected to the U-shaped mounting block (26) via a rotating shaft for rolling and supporting the locomotive coupler (10); The upper end surface of the base plate (1) is provided with a guide slot (28), the inner wall of the guide slot (28) is slidably connected to a guide slider (29), the upper end surface of the guide slider (29) is fixedly connected to a second vertical fixing rod (30), and the upper end of the second vertical fixing rod (30) is fixedly connected to a U-shaped mounting block (26) for further support; The stop structure comprises a connecting block (31) fixedly mounted on the upper surface of the base plate (1), a switch button (32) fixedly mounted on the surface of the connecting block (31), an L-shaped block (36) fixedly connected to the side of the movable seat (5), and a touch rod (37) fixedly connected to the surface of the L-shaped block (36) for touching the switch button (32) to realize the rapid shutdown of the servo motor (34).

2. A locomotive coupler physical performance testing platform according to claim 1, characterized in that: A mounting seat (33) is fixedly mounted on one end of the mounting frame (2), a servo motor (34) is fixedly mounted on the mounting frame (2) via the mounting seat (33), and an output end of the servo motor (34) is fixedly connected to one end of the threaded rod (3), a wire (35) is electrically connected to the servo motor (34), and one end of the wire (35) is electrically connected to the switch button (32).

3. A locomotive coupler physical performance testing platform according to claim 1, characterized in that: The disassembly and assembly structure includes an N-shaped frame (38) fixedly connected to the upper end surface of the second mounting plate (9), a plug pin (39) is inserted at the upper end of the N-shaped frame (38), and a plug hole (40) is opened on the upper end surface of the second mounting plate (9).

4. A locomotive coupler physical performance testing platform according to claim 1, characterized in that: The arc-shaped limit block (14) is designed to pass through the strip-shaped through slot (11), and is similar to the locomotive coupler (10) and moves synchronously with the movement of the movable seat (5), and one side of the upper end is designed to be arc-shaped for downward movement under force.

5. The locomotive coupler physical performance testing platform according to claim 3, characterized in that: The plug pin (39) passes through the through hole (12) and is inserted into the inner wall of the plug hole (40), and the inner diameter of the plug hole (40) is adapted to the designed outer diameter of the plug pin (39) to limit the movement of one end of the locomotive coupler (10).

6. A locomotive coupler physical performance testing platform according to claim 1, characterized in that: The upper end of the sliding sleeve (18) is fixedly connected to the end wall of the strip-shaped placement groove (15), and the lower end of the sliding sleeve (18) is fixedly connected to the upper end surface of the spring (17).

7. A method for testing the physical properties of a locomotive coupler, comprising the locomotive coupler physical properties testing platform according to claim 1, characterized in that: The following steps are involved: The locomotive coupler (10) is placed on the first mounting plate (8) and the second mounting plate (9), and the arc-shaped limit block (14) is passed through the strip-shaped through groove (11) and the plug pin (39) is passed through the through hole (12) and inserted into the inner wall of the plug hole (40); Then, the servo motor (34) is started, and the servo motor (34) drives the threaded rod (3) to rotate. When the movable seat (5) moves, the locomotive coupler (10) on the mounting plate (8) is subjected to tension, and the movable seat (6) moves accordingly. At this time, the piston block (23) moves on the inner wall of the piston cylinder (20), forming a certain amount of air compression. When the compression cannot be further compressed, the pressure value of the pressure display (24) is observed to see whether the locomotive coupler (10) is deformed or broken. At this time, the arc-shaped limit block (14) is also squeezed and moved downward, thereby disengaging from the strip groove (11), so that the locomotive coupler (10) is no longer subjected to the upper end surface of the tension spring (17). When the locomotive coupler (10) is likely to fall during the test, the rollers (27) on the Z-shaped plate 2 (25) and the U-shaped mounting block (26) will provide support to prevent it from falling directly and causing bending and damage to the equipment; During the entire process, when the movable seat 1 (5) moves to a certain position, the touch rod (37) on the L-shaped block (36) touches the switch button (32); the switch button (32) is electrically connected to the servo motor (34) through the wire (35). When touched, the power supply of the servo motor (34) is quickly cut off, causing it to stop rotating, thereby stopping the movement of the movable seat 1 (5) and avoiding power consumption caused by not stopping in time.

Images