Railway vehicle cab control cabinet impact experiment device

Abstract

The invention provides an impact experiment device for a control cabinet of a railway vehicle cab, belongs to the technical field of impact experiments, and aims to solve the problem that most of impact test devices can only carry out impact tests in a single direction in the prior art, the impact experiment device comprises a workbench, and the top of the workbench is fixedly connected with an installation ring through an installation frame. A rotating ring is rotationally connected to one side of the mounting ring, a mounting plate is fixedly connected to the rotating ring, and an impact device is rotationally connected to the mounting plate through a first rotating shaft; a vibrating table is arranged on the inner side of the rotating ring, the bottom of the vibrating table is rotationally connected with a supporting plate through a second rotating shaft, the second rotating shaft is driven by a third driving device, and the supporting plate is supported through a support. According to the impact device, 360-degree horizontal rotating positioning of the impact device can be achieved through the mounting ring and the rotating ring, and three-dimensional space multi-angle impact coverage is formed in cooperation with angle adjustment of the impact device. The vibration table integrates a self-rotation function, and coverage of impact tests on the five faces of the vibration table can be achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of impact testing, and in particular relates to an impact testing device for a control cabinet in a driver's cab of a rail vehicle. Background Art

[0002] The control cabinet of a railway train is a key piece of equipment in train operation, and its stability and reliability are directly related to the safe operation of the train. To ensure that the control cabinet can function properly under various complex operating conditions, it must be subjected to impact testing. Impact testing can simulate various impact situations that a train may encounter during actual operation, such as switch switching and emergency braking, thereby evaluating the stability and reliability of the control cabinet. Existing impact testing equipment is mainly divided into three types: transverse impact testing, longitudinal impact testing, and vertical impact testing. These test devices can simulate the impact forces exerted on the train in different directions, providing important data support for the design and improvement of the control cabinet.

[0003] However, existing impact testing devices have limitations. Most can only perform impact tests in a single direction, failing to fully simulate the complex multi-angle and multi-directional impacts that trains may encounter during actual operation. This limitation can result in an incomplete and inaccurate assessment of control cabinet performance. Therefore, developing a device capable of multi-angle impact testing is crucial for improving the reliability and safety of control cabinets. Summary of the Invention

[0004] In view of this, the present invention provides an impact test device for a rail vehicle driver's cab control cabinet to solve the problem in the prior art that most impact test devices can only perform impact tests in a single direction and cannot fully simulate the complex impact conditions of multiple angles and directions that the train may encounter during actual operation.

[0005] The technical solution adopted in the present invention is as follows: A rail vehicle driver's cab control cabinet impact test device includes a workbench, the top of the workbench is fixedly connected to a mounting ring through a mounting frame, one side of the mounting ring is rotatably connected to a rotating ring, the rotating ring is driven by a first driving device to rotate on the mounting ring, the rotating ring is fixedly connected to a mounting plate, the mounting plate is rotatably connected to an impact device for launching an impact object through a first rotating shaft, the first rotating shaft is perpendicular to the mounting plate and is driven by a second driving device to drive the impact device to rotate; a vibration table is provided on the inner side of the rotating ring, the bottom of the vibration table is rotatably connected to a support plate through a second rotating shaft, the second rotating shaft and the vibration table are perpendicular to each other, and the second rotating shaft is driven by a third driving device to drive the vibration table to rotate, and the support plate is supported by a bracket.

[0006] Preferably, the impact device includes an angle adjustment plate, which is rotatably connected to the mounting plate via a first rotating shaft, and a force storage rod, a fourth driving device and a storage box are provided on the angle adjustment plate, the force storage rod is arranged along the length direction of the angle adjustment plate, and the fourth driving device can drive the force storage rod to move along the length direction of the angle adjustment plate; the storage box is located on one side of the force storage rod for placing the impactor, an inlet is penetrated at one end of the storage box close to the force storage rod, an outlet is penetrated at one end of the storage box away from the force storage rod, and a mounting groove is provided near the outlet in the storage box, a cylinder is provided in the mounting groove, and a piston rod at the top of the cylinder is connected to a baffle for limiting the impactor, and the top of the baffle extends out of the mounting groove.

[0007] The cam is fixedly mounted on a first end of the driving mechanism, and the cam is secured on a first end of the driving mechanism, and the cam is secured on a second end of the driving mechanism.

[0008] Preferably, the telescopic touch switch includes an outer cylinder, an inner cylinder is slidably embedded in the outer cylinder, the bottom of the inner cylinder extends outside the outer cylinder, the inner cylinder is elastically connected to the outer cylinder through a first spring, and a pressure sensor that cooperates with the inner cylinder is provided at the top of the inner cavity of the outer cylinder, and the pressure sensor is electrically connected to the cylinder.

[0009] Preferably, a guide surface is provided at the bottom of the inner cylinder, the guide surface is located on a side of the inner cylinder close to the storage box, and the guide surface is arranged at an inclination.

[0010] Preferably, a second spring is sleeved on the power storage rod, one end of the second spring is connected to one of the rings, and the other end is connected to the abutment plate; the fourth driving device includes a rack and an incomplete gear, the rack is fixedly connected to the power storage rod, the incomplete gear is arranged on the angle adjustment plate, and is driven by the first motor to rotate, and the tooth block of the incomplete gear is engaged with the rack.

[0011] Preferably, the top of the storage box is screwed with a placement box connected thereto, and a plurality of impact objects are overlapped in sequence from top to bottom in the placement box. A push plate is slidably embedded in the placement box, and the push plate is located above the topmost impact object. The push plate is connected to the top of the placement box through a third spring.

[0012] Preferably, the first driving device includes a first motor, which is arranged on a workbench. A first gear is fixedly sleeved on the first motor, and a first annular rack meshing with the first gear is provided on the side wall of the rotating ring.

[0013] Preferably, a guide rail is provided below the workbench, the workbench is slidably connected to the guide rail via a slide rail, and mounting seats are provided on both sides of the workbench, the two mounting seats are connected by a screw, the screw is threadedly connected to the workbench, and the screw is driven by a second motor to achieve rotation. There are two guide rails, which are spaced apart on both sides of the bottom of the workbench.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. The precise design of the mounting ring and rotating ring in this invention enables 360° horizontal rotation of the impact device. Combined with the impact device's own angle adjustment, this provides three-dimensional, multi-angle impact coverage. The vibration table's integrated rotation function enables impact testing on all five sides of the vibration table. Through vibration-impact coupling testing, the device simultaneously simulates train operation vibration and sudden impact loads, achieving a realistic reproduction of complex operating conditions.

[0015] 2. In the present invention, the rotating ring rotates horizontally to cover three sides of the control cabinet, and the vibration table rotates to cover the remaining two sides, thereby improving the coverage of the impact surface; the multi-angle adjustable impact device is combined with a high-precision positioning system to quantify the impact of different impact vectors on the cabinet structure; the integrated control system achieves millisecond-level synchronization of vibration, rotation, and impact, and a single experiment can complete five-side testing, shortening the verification cycle. Ultimately, it provides reliable data support for optimizing the impact resistance of the control cabinet and significantly improves the safety performance of rail vehicles.

[0016] 3. In this invention, the angle adjustment plate, storage box, energy storage rod, and fourth drive mechanism enable precise launch and continuous testing of impactors. The principle is to utilize the rotation of the incomplete gear to control the movement of the energy storage rod. When the incomplete gear tooth block meshes with the rack, the energy storage rod is stretched, and a second spring stores elastic potential energy. When the gear rotates to the toothless portion, the energy storage rod is rapidly reset by the spring, striking the impactor and launching it. By continuously rotating the incomplete gear, continuous launch of the impactor is achieved.

[0017] 4. In the present invention, the locking and unlocking functions of the one-way bearing and the mechanical transmission of the abutment shaft are utilized to ensure that the power storage rod can accurately trigger the corresponding action when it moves in different directions. When the power storage rod moves in the direction away from the storage box, the abutment plate contacts the first abutment shaft, driving the third rotating shaft to rotate clockwise. At this time, the one-way bearing is in an unlocked state, and the second abutment shaft does not rotate. When the power storage rod moves in the opposite direction, the abutment plate contacts the first abutment shaft again, driving the third rotating shaft to rotate counterclockwise. At this time, the one-way bearing is locked, and the second abutment shaft rotates and touches the telescopic touch switch, triggering the cylinder to start, releasing the limit on the impactor, and completing the launch. This design ensures the accuracy and timeliness of the impactor launch, and improves the reliability and efficiency of the test.

[0018] 5. In the present invention, the telescopic touch switch is set up, and its principle is to use the relative movement of the inner cylinder and the outer cylinder and the rapid response of the pressure sensor to trigger the cylinder action. When the storage rod completes the storage of power and moves at high speed towards the impact object, the second contact shaft touches the inner cylinder of the telescopic touch switch. The inner cylinder moves inward after being pressurized, compressing the first spring. The pressure sensor detects the pressure change and immediately sends a signal to the cylinder. The cylinder starts and drives the baffle to retract into the installation groove, releasing the impact on the impact object. The limited position allows the impactor to be ejected at high speed under the impact of the charging rod. This design ensures the accuracy and timeliness of the impactor launch, and improves the reliability and efficiency of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will now be described by way of example with reference to the accompanying drawings, in which: Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 Schematic diagram of the three-dimensional structure of the vibration table and control cabinet of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the mounting ring and the rotating ring of the present invention; Figure 4 is a schematic diagram of the three-dimensional structure of the impact device of the present invention; Figure 5 for Figure 4 Schematic diagram of the three-dimensional structure of the storage box and the placement box after cutting; Figure 6 for Figure 5 Schematic diagram of the three-dimensional structure of the storage box; Figure 7 for Figure 5 Schematic diagram of the three-dimensional structure after cutting along AA; Figure 8 Schematic diagram of the cross-sectional three-dimensional structure of the telescopic touch switch of the present invention; Figure 9 for Figure 7Schematic diagram of the three-dimensional structure of the middle power storage rod and the third rotating shaft; Figure 10 Schematic diagram of the three-dimensional structure of the workbench of the present invention when viewed from above; Among them: 1-mounting ring, 2-rotating ring, 3-control cabinet, 4-vibration table, 5-workbench, 6-bracket, 7-support plate, 8-third drive device, 9-impact device, 10-mounting plate, 11-mounting frame, 12-first annular rack, 13-first motor, 14-first gear, 15-angle adjustment plate, 16-first rotating shaft, 17-collar, 18-storage rod, 19-rack, 20-incomplete gear, 21-first motor, 22-storage box, 23-placement box, 24-second spring , 25-abutment plate, 26-third rotating shaft, 27-impact, 28-third spring, 29-push plate, 30-outlet, 31-inlet, 32-baffle, 33-mounting groove, 34-cylinder, 35-first abutment shaft, 36-one-way bearing, 37-second abutment shaft, 38-telescopic touch switch, 39-outer cylinder, 40-inner cylinder, 41-pressure sensor, 42-first spring, 43-guide rail, 44-slide rail, 45-mounting seat, 46-screw, 47-second motor, 48-guide surface. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0022] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0024] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0025] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other.

[0026] Example 1 like Figures 1-10As shown, an embodiment of the present invention discloses an impact test device for a rail vehicle driver's cab control cabinet, including a workbench 5, wherein the top of the workbench 5 is fixedly connected to a mounting ring 1 through a mounting frame 11, and a rotating ring 2 is rotatably connected to one side of the mounting ring 1, and the rotating ring 2 is driven by a first driving device to rotate on the mounting ring 1, and a mounting plate 10 is fixedly connected to the rotating ring 2, and an impact device 9 for launching an impact object 27 is rotatably connected to the mounting plate 10 through a first rotating shaft 16, and the first rotating shaft 16 is perpendicular to the mounting plate 10 and is driven by a second driving device to drive the impact device 9 to rotate; a vibration table 4 is provided on the inner side of the rotating ring 2, and a support plate 7 is rotatably connected to the bottom of the vibration table 4 through a second rotating shaft, the second rotating shaft and the vibration table 4 are perpendicular to each other, and the second rotating shaft is driven by a third driving device 8 to drive the vibration table 4 to rotate, and the support plate 7 is supported by a bracket 6. It should be noted that the workbench 5 supports the mounting frame 11. As the core load-bearing platform, the workbench 5 utilizes a welded box-beam structure. The mounting ring 1 is a circular ring structure, with the rotating ring 2 slidingly engaged and capable of rotating around the circumference of the mounting ring 1. The mounting plate 10 is bolted to the rotating ring 2 and rotates with it. The impact device 9 can launch an impactor 27, causing it to impact the control cabinet 3. Because the impact device 9 is rotatably connected to the mounting plate 10 via a first rotating shaft 16, the second drive device can rotate the first rotating shaft 16, thereby enabling the angle of the impact device 9 to be adjusted. The design of these components allows the device to flexibly adjust the impact direction and position to meet the requirements of multi-angle impact testing. The vibration table 4 is a common device in the prior art. Its principle is to generate vibrations using a motor-driven eccentric weight or other vibration mechanism, thereby simulating the dynamic environment of actual operation. A fixing device is provided on the top of the vibration table 4 to secure the control cabinet 3. This fixing device can be a conventional fixture, such as a clamp, and will not be described in detail here. The working principle of the entire device is to achieve an all-round impact test on the control cabinet 3 through a multi-angle drive device. Specifically, the design of the rotating ring 2 and the mounting plate 10 enables the impact device 9 to impact the control cabinet 3 at different angles and positions, covering three surfaces of the control cabinet 3 (except the bottom surface). At the same time, the vibration table 4 rotates by the third drive device 8, so that the other two surfaces of the control cabinet 3 rotate to a position opposite to the rotating ring 2, thereby achieving a comprehensive impact test on the five surfaces of the control cabinet 3. In addition, the control cabinet 3 is hoisted on the vibration table 4 by a sling. The impact device 9 impacts the control cabinet 3 by launching an impact object 27, thereby comprehensively evaluating the impact resistance and stability of the control cabinet 3. The angle of the impact device 9 can be adjusted by the second drive device. This design can more realistically restore the complex working conditions during train operation and provide reliable data support for the design and optimization of the control cabinet 3.In specific implementation, this solution involves first hoisting the control cabinet 3 onto the vibration table 4 using a hoist. The control cabinet 3 is then secured using a clamp on the vibration table 4. The vibration table 4 is then activated, causing the control cabinet 3 to vibrate, simulating the vibration experienced during train operation. Workers then select the area of the control cabinet 3 where the impact test is to be performed and set the impact angle. The first drive unit rotates the rotating ring 2, causing the rotating ring 2 to move the impact device 9 to the specified position. The second drive unit (motor) then rotates the first rotating shaft 16, causing the impact device 9 to rotate to the specified angle. The impact device 9 then launches an impactor 27 to impact the control cabinet 3. To impact two surfaces of the control cabinet 3 that deviate from the rotating ring 2, the third drive unit 8 (motor) rotates the vibration table 4. Finally, the impact test can be performed on the control cabinet 3 using the impact device 9 while the rotating ring 2 rotates.

[0027] Example 2 like Figure 4-Figure 9As shown, this embodiment is substantially the same as the above embodiment, except that the impact device 9 includes an angle adjustment plate 15, the angle adjustment plate 15 is rotatably connected to the mounting plate 10 via a first rotating shaft 16, and the angle adjustment plate 15 is provided with a storage rod 18, a fourth driving device and a storage box 22, the storage rod 18 is arranged along the length direction of the angle adjustment plate 15, and the fourth driving device can drive the storage rod 18 to move along the length direction of the angle adjustment plate 15; the storage box 22 is located on one side of the storage rod 18, and is used for To accommodate the impactor 27, the storage box 22 has an inlet 31 at one end near the power storage rod 18, and an outlet 30 at the other end away from the power storage rod 18. A mounting slot 33 is provided in the storage box 22 near the outlet 30. A cylinder 34 is provided in the mounting slot 33. The piston rod at the top of the cylinder 34 is connected to a baffle 32 for limiting the position of the impactor 27. The top of the baffle 32 extends outside the mounting slot 33 to limit the position of the impactor 27 and prevent it from falling before launch. It should be noted that the angle adjustment plate 15 is used to install the power storage rod 18, the storage box 22, and the fourth drive device. The angle adjustment plate 15 is usually made of high-strength aluminum alloy or steel to ensure its structural strength and stability under high-speed movement and frequent impacts. The outer shell of the storage box 22 is made of high-strength alloy steel or composite material, which has good impact resistance and durability. The charge rod 18 runs along the length of the angle adjustment plate 15 and is typically constructed of high-strength carbon fiber or steel to ensure rigidity and bending resistance during high-speed motion. In practice, the impactor 27 is first placed within the storage box 22. Initially, the piston rod of the cylinder 34 pushes the baffle 32 out of the mounting slot 33, extending it outside the storage box 22. This position restrains the impactor 27 and prevents it from falling before launch. After the rotating ring 2 rotates the angle adjustment plate 15 to the designated position, a second drive device (such as a motor) further adjusts the angle of the angle adjustment plate 15 to ensure that the launch direction of the impactor 27 is aligned with the target area. Subsequently, the fourth drive device activates, driving the charge rod 18 along the length of the angle adjustment plate 15. The charge rod 18 initially moves at a relatively slow speed away from the impactor 27, providing sufficient distance for charge accumulation and accumulating kinetic energy for the subsequent high-speed impact. This charge accumulation process ensures that the impactor 27 achieves sufficient velocity and impact force upon launch. After charging, the charging rod 18 begins to rush toward the impactor 27 at high speed. Just before the charging rod 18 strikes the impactor 27, the cylinder 34 quickly retracts the baffle 32 into the mounting slot 33, releasing the restraint on the impactor 27. As the charging rod 18 strikes the impactor 27, the impactor 27, acting under the external force, is ejected from the outlet 30 of the storage box 22 at high speed, striking the control cabinet 3 at the set speed and direction, thus completing the impact test.

[0028] like Figure 4As shown, in this embodiment, a plurality of collars 17 are arranged at intervals on the angle adjustment plate 15, the force storage rod 18 is slidably embedded in the inner side of the collar 17, and an abutment plate 25 is fixedly sleeved on the force storage rod 18; the angle adjustment plate 15 is also rotatably connected to a third rotating shaft 26, and the third rotating shaft 26 is located above the force storage rod 18, and a plurality of first abutment shafts 35 that cooperate with the abutment plate 25 are provided on the side wall of the end of the third rotating shaft 26 away from the angle adjustment plate 15, and the length of the first abutment shaft 35 is greater than the distance between the third rotating shaft 26 and the abutment plate 25, and the third rotating shaft 26 is also provided with a The angle adjustment plate 15 is provided with a one-way bearing 36. When the power storage rod 18 moves away from the storage box 22, the abutment plate 25 drives the third rotating shaft 26 to rotate via the first abutment shaft 35. At this time, the outer ring of the one-way bearing 36 does not rotate. Several second abutment shafts 37 are provided on the sidewalls of the one-way bearing 36, corresponding to the first abutment shafts 35. The angle adjustment plate 15 is also provided with a telescopic touch switch 38 electrically connected to the cylinder 34. The telescopic touch switch 38 is located above the one-way bearing 36, and the distance between the telescopic touch switch 38 and the one-way bearing 36 is less than the length of the second abutment shafts 37. It should be noted that two collars 17 are spaced along the length of the angle adjustment plate 15. These collars 17 are made of high-precision bearing steel and provide guidance and support for the power storage rod 18, ensuring stability and precision during movement. The power storage rod 18 is slidably embedded within the collars 17. The abutment plate 25 is made of wear-resistant steel, and the one-way bearing 36 is a high-precision one-way bearing 36, ensuring locking and unlocking functions in different rotational directions. The second abutment shaft 37 is made of high-precision alloy steel and is used to contact the telescopic touch switch 38. The telescopic touch switch 38 is electrically connected to the cylinder 34. The telescopic touch switch 38 is a highly sensitive model that can quickly trigger the cylinder 34 to start when touched. The cylinder 34 is a high-performance cylinder 34 that can quickly drive the baffle 32 to extend and retract, ensuring that the impactor 27 does not fall during launch and promptly resets after launch to prepare for the next launch. During specific implementation, the storage rod 18 first moves away from the storage box 22. During this process, the abutment plate 25 on the storage rod 18 contacts the first abutment shaft 35 on the third rotating shaft 26, and the first abutment shaft 35 drives the third rotating shaft 26 to rotate clockwise. At this point, the inner and outer rings of the one-way bearing 36 are unlocked, meaning the outer ring of the one-way bearing 36 does not rotate, and therefore the second abutment shaft 37 does not rotate. When the power storage rod 18 moves in the reverse direction, toward the storage box 22, the abutment plate 25 again contacts the first abutment shaft 35, but this time, it drives the third rotating shaft 26 counterclockwise. In this situation, the inner ring of the one-way bearing 36 rotates with the third rotating shaft 26. In this direction, the inner and outer rings of the one-way bearing 36 are locked, so the outer ring of the one-way bearing 36 also rotates, driving the second abutment shaft 37 to rotate.After the second abutment shaft 37 rotates, it will touch the telescopic touch switch 38 located on one side. After the telescopic touch switch 38 is triggered, an electrical signal is immediately sent to start the cylinder 34. After the cylinder 34 is started, it drives the baffle 32 to retract into the mounting groove 33, releasing the limit on the impactor 27. At this time, the power storage rod 18 continues to rush towards the impactor 27. After the impactor 27 is launched at high speed, the cylinder 34 will automatically drive the baffle 32 to reset so as to limit the next impactor 27 and prepare for the next launch. The entire process ensures the controllability of the launch speed, direction and impact force of the impactor 27 through precise mechanical coordination and coordinated work of the drive device, providing reliable experimental conditions for the impact resistance performance test of the control cabinet 3.

[0029] like Figure 8As shown, in this embodiment, the telescopic touch switch 38 includes an outer cylinder 39, within which an inner cylinder 40 is slidably embedded. The bottom of the inner cylinder 40 extends beyond the outer cylinder 39 and is elastically connected to the outer cylinder 39 via a first spring 42. A pressure sensor 41 is mounted at the top of the inner cavity of the outer cylinder 39, which cooperates with the inner cylinder 40. The pressure sensor 41 is electrically connected to the cylinder 34. It should be noted that the telescopic touch switch 38 is used to activate the cylinder 34 immediately after the charging rod 18 has completed charging, thereby releasing the restraint on the impactor 27. It primarily comprises the outer cylinder 39, the inner cylinder 40, the first spring 42, and the pressure sensor 41. The outer cylinder 39 is made of high-strength aluminum alloy, offering excellent wear resistance and impact resistance, capable of withstanding frequent touches and impacts. A highly sensitive pressure sensor 41 is mounted at the top of the inner cavity of the outer cylinder 39. The pressure sensor 41 is electrically connected to the cylinder 34, ensuring timely and accurate signal transmission. The inner cylinder 40 is slidably embedded within the outer cylinder 39, with its bottom extending beyond the outer cylinder 39 to directly contact the second abutment shaft 37. The inner cylinder 40 is constructed from high-precision steel and surface-hardened to enhance its wear resistance and deformation resistance. The first spring 42 is made from high-strength spring steel, offering excellent elasticity and fatigue resistance, ensuring stable performance during frequent compression and resetting. The spring constant of the first spring 42 has been precisely calculated to ensure that the inner cylinder 40 responds quickly when touched and quickly resets after the touch ends, ready for the next triggering. A pressure sensor 41 is integrated with the inner cylinder 40. When the inner cylinder 40 is touched and compresses the first spring 42, the pressure sensor 41 detects the pressure change and transmits a signal to the cylinder 34, triggering its activation. The sensitivity and response speed of the pressure sensor 41 are crucial to ensuring the coordinated operation of the entire device. Its design ensures reliability and stability even during high-speed movements. In practice, when the force-accumulating rod 18 has completed its charge and begins to move at high speed toward the impactor 27, the second abutting shaft 37 contacts the inner cylinder 40 of the telescopic touch switch 38. Upon contact, the inner cylinder 40 begins to move toward the inner cylinder 40, compressing the first spring 42. As the inner cylinder 40 moves, the pressure sensor 41 detects the pressure change and transmits an electrical signal to the cylinder 34. Upon receiving the signal, the cylinder 34 immediately activates, retracting the baffle 32 into the mounting slot 33 and releasing the restraint on the impactor 27. The impactor 27 is ejected at high speed by the force-accumulating rod 18, completing the impact test.

[0030] like Figure 8As shown, in this embodiment, a guide surface 48 is provided at the bottom of the inner tube 40. This guide surface 48 is located on the side of the inner tube 40 closest to the storage box 22 and is tilted. It should be noted that the guide surface 48 is a key design feature of the bottom of the inner tube 40, located on the side of the inner tube 40 closest to the storage box 22 and tilted. The guide surface 48 is typically manufactured from high-precision steel and hardened to enhance its wear resistance and deformation resistance. The tilt angle of the guide surface 48 is between 30 and 60 degrees to optimize mechanical properties during contact, ensuring that the second abutting shaft 37 slides smoothly into the inner tube 40 and reducing friction and impact during contact. The design of the guide surface 48 not only helps guide the second abutting shaft 37 into accurate contact with the inner tube 40, but also presses the inner tube 40 toward the outer tube 39 during contact, ensuring a smooth and reliable triggering process. This inclined design allows the second abutment shaft 37 to slide naturally along the guide surface 48 upon contact, thereby reducing resistance during contact and improving triggering efficiency. In practice, when the charge rod 18 completes charge and begins to move at high speed toward the impactor 27, the second abutment shaft 37 first contacts the guide surface 48 of the inner cylinder 40. Because the guide surface 48 is inclined, the second abutment shaft 37, upon contact, presses the inner cylinder 40 toward the outer cylinder 39. This process reduces friction and impact force during contact, ensuring smooth inward movement of the inner cylinder 40 and compressing the first spring 42. As the inner cylinder 40 moves, the pressure sensor 41 detects the pressure change and transmits an electrical signal to the cylinder 34. Upon receiving the signal, the cylinder 34 immediately activates, retracting the baffle 32 into the mounting slot 33 and releasing the restraint on the impactor 27. The impactor 27 is ejected at high speed by the charge rod 18, completing the impact test. The design of the entire telescopic touch switch 38, through precise mechanical coordination and a highly sensitive pressure sensor 41, ensures reliability and stability during high-speed movement, providing a crucial guarantee for the coordinated operation of the entire impact device 9. The inclined setting of the guide surface 48 further optimizes the touch process, improving the durability and response speed of the device.

[0031] Example 3 like Figure 4-Figure 9As shown, this embodiment is substantially the same as the above-described embodiment, differing in that a second spring 24 is sleeved on the power storage rod 18. One end of the second spring 24 is connected to one of the collars 17, and the other end is connected to the abutment plate 25. The fourth drive device comprises a rack 19 and an incomplete gear 20. The rack 19 is fixedly connected to the power storage rod 18. The incomplete gear 20 is mounted on the angle adjustment plate 15 and driven for rotation by a first motor 21. The tooth blocks of the incomplete gear 20 mesh with the rack 19. It should be noted that the second spring 24 is made of high-strength spring steel with excellent elasticity and fatigue resistance, and is used to provide elastic power storage and reset functions when the power storage rod 18 moves. The rack 19 is made of high-precision steel and hardened to improve its wear resistance and deformation resistance. The incomplete gear 20 is made of high-precision alloy steel to ensure its rotational accuracy and strength. The tooth blocks of the incomplete gear 20 are unevenly distributed, typically only a portion has tooth blocks, while the rest is a toothless locking arc. This design enables the incomplete gear 20 to intermittently engage with the rack 19 during rotation. In a specific implementation, the first motor 21 drives the incomplete gear 20 to rotate. When the tooth block of the incomplete gear 20 engages with the rack 19, the rack 19 is driven to move the power storage rod 18 away from the impactor 27, and the second spring 24 is stretched and stores elastic potential energy. When the incomplete gear 20 rotates to the toothless part, the rack 19 disengages from the incomplete gear 20, and the power storage rod 18 quickly resets under the elastic action of the second spring 24, rushing towards the impactor 27 at high speed to complete the impact test. Furthermore, by continuously rotating the incomplete gear 20, the intermittent movement of the power storage rod 18 can also be achieved, thereby achieving continuous emission of the impactor 27, providing reliable experimental conditions for the impact resistance test of the control cabinet 3.

[0032] like Figure 5-Figure 6As shown, in this embodiment, the top of the storage box 22 is screwed to a placement box 23 connected thereto, and a number of impactors 27 are stacked in sequence from top to bottom in the placement box 23. A push plate 29 is slidably embedded in the placement box 23, and the push plate 29 is located above the topmost impactor 27. The push plate 29 is connected to the top of the placement box 23 via a third spring 28. It should be noted that the placement box 23 is designed to accommodate a plurality of impactors 27. The impactors 27 are stacked in sequence from top to bottom in the placement box 23 to ensure orderly storage and sequential retrieval. The push plate 29 is used to push the next impactor 27 into the storage box 22 after the impactor 27 is launched. The push plate 29 is made of high-precision steel and its surface is hardened to improve its wear resistance and deformation resistance. The third spring 28 is made of high-strength spring steel, which has good elasticity and fatigue resistance, and can maintain stable performance during frequent compression and resetting. The elastic coefficient of the third spring 28 has been precisely calculated to ensure that the push plate 29 can apply pressure evenly and push the impactor 27 to move smoothly. In specific implementation, when an impactor 27 is launched, the space inside the storage box 22 is released. At this time, the push plate 29 in the placement box 23 moves downward under the elastic action of the third spring 28, pushing the next impactor 27 into the storage box 22, preparing for the next launch. This process is achieved through the compression and reset of the third spring 28, ensuring that the impactor 27 can be continuously and smoothly fed into the storage box 22, realizing the function of continuous launch. The design of the entire storage box 22 and the placement box 23 ensures the orderly storage and continuous launch of the impactors 27 through precise mechanical coordination and the use of high-precision components, providing reliable experimental conditions for the impact resistance test of the control cabinet 3.

[0033] Example 4 like Figure 3As shown, this embodiment is substantially the same as the above-described embodiment, except that the first drive device includes a first motor 13, which is mounted on a workbench 5. A first gear 14 is fixedly mounted on the first motor 13, and a first annular rack 12 meshing with the first gear 14 is provided on the side wall of the rotating ring 2. It should be noted that the first motor 13 is typically a high-torque motor to ensure sufficient driving force. The first gear 14 is fixedly mounted on the output shaft of the first motor 13 and is manufactured from high-precision alloy steel to ensure its rotational accuracy and strength. The first annular rack 12 is manufactured from high-precision steel and has a hardened surface to improve its wear resistance and deformation resistance. The first gear 14 meshes with the first annular rack 12, and the rotation of the motor drives the rotating ring 2 to rotate. In a specific implementation, when the rotating ring 2 needs to be adjusted, the first motor 13 is started, driving the first gear 14 to rotate. Since the first gear 14 is engaged with the first annular rack 12 on the side wall of the rotating ring 2, the rotation of the first gear 14 will drive the rotating ring 2 to rotate circumferentially around the mounting ring 1, thereby moving the impact device 9 to the specified position, providing support for multi-angle impact testing of the control cabinet 3.

[0034] like Figure 10As shown, in this embodiment, a guide rail 43 is provided below the workbench 5. The workbench 5 is slidably connected to the guide rail 43 via a slide rail 44. Mounting blocks 45 are provided on either side of the workbench 5. The two mounting blocks 45 are connected by a screw 46, which is threadedly connected to the workbench 5 and driven by a second motor 47 for rotation. Two guide rails 43 are spaced apart on either side of the bottom of the workbench 5. It should be noted that the guide rails 43 are made of high-precision steel and have a hardened surface to ensure wear resistance and stability. The guide rails 43 are bolted to the foundation, providing stable support and guidance for the workbench 5. The slide rails 44 are made of high-precision steel and have a hardened surface. They work in conjunction with the guide rails 43 to ensure smooth movement of the workbench 5 along the guide rails 43. The design of the slide rails 44 allows the workbench 5 to be precisely adjusted horizontally to accommodate different testing requirements. The mounting blocks 45 are made of high-strength steel and are bolted to the workbench 5 to ensure structural strength. The lead screw 46 utilizes a high-precision ball screw 46, offering excellent transmission accuracy and stability. The lead screw 46 is threadedly connected to the workbench 5, and rotating the lead screw 46 enables linear movement of the workbench 5. The second motor 47 utilizes a high-torque motor, providing sufficient driving force to ensure smooth movement of the workbench 5. The motor is connected to the lead screw 46 via a coupling, ensuring transmission accuracy and stability. In practice, when the position of the workbench 5 needs to be adjusted, the second motor 47 is activated, rotating the lead screw 46 via the coupling. Because the lead screw 46 is threadedly connected to the workbench 5, its rotation drives the workbench 5 in a linear motion along the guide rail 43. The coordination between the guide rail 43 and the slide rail 44 ensures smooth and accurate movement of the workbench 5. By precisely controlling the rotation angle and speed of the second motor 47, the workbench 5 can be precisely adjusted in position, thereby moving the entire impact test apparatus to a desired location and providing support for multi-angle impact testing of the control cabinet 3. This design enables the apparatus to adapt to different testing scenarios, improving the flexibility and adaptability of the test.

[0035] The working principle of the present invention is: Installation and preparation: The control cabinet 3 is hoisted onto the vibration table 4 using a sling and fixed with a clamp.

[0036] Make sure that all components (such as the rotating ring 2, the mounting plate 10, the impact device 9, the vibration table 4, etc.) are in their initial positions.

[0037] Check and confirm that all driving devices (electric motors, cylinders 34, etc.) are in normal working condition.

[0038] Start shaker 4: The vibration table 4 is started to simulate the vibration of the train when it is running. The vibration table 4 generates vibration by driving an eccentric block or other vibration mechanism through a motor.

[0039] Select the impact area and angle settings: Based on the test requirements, the staff selects the area of the control cabinet 3 that needs to be impact tested.

[0040] The first driving device (the first motor 13 and the first gear 14 ) is used to drive the rotating ring 2 to rotate, and the impact device 9 is moved to a designated position.

[0041] A second driving device (such as a motor) is used to rotate the first rotating shaft 16 and adjust the angle of the impact device 9 to ensure that the launch direction of the impact object 27 is aligned with the target area.

[0042] Impactor 27 launch preparations: The impactor 27 is placed in the storage box 22 . In the initial state, the piston rod of the cylinder 34 pushes the baffle 32 out of the mounting groove 33 to limit the impactor 27 .

[0043] The fourth drive mechanism activates, and the motor drives the incomplete gear 20 to rotate. When the tooth block of the incomplete gear 20 meshes with the rack 19, the rack 19 is driven, causing the force storage rod 18 to move away from the impactor 27. The second spring 24 is stretched, storing elastic potential energy. The incomplete gear 20 is manufactured from high-precision alloy steel, and the rack 19 is made of high-precision steel with a hardened surface to ensure wear resistance and deformation resistance.

[0044] Impactor 27 launch When the power storage rod 18 completes power storage, the incomplete gear 20 rotates to the toothless portion, the rack 19 disengages from the incomplete gear 20 , and the power storage rod 18 quickly resets under the elastic action of the second spring 24 and rushes towards the impactor 27 at high speed.

[0045] Before the force storage rod 18 is about to hit the impact object 27 , the cylinder 34 quickly drives the baffle 32 to retract into the installation groove 33 , thereby releasing the restriction on the impact object 27 .

[0046] The force storage rod 18 hits the impact object 27, and the impact object 27 is ejected at high speed and hits the control cabinet 3, completing the impact test.

[0047] The circuits, electronic components and modules involved are all existing technologies and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present invention does not involve improvements to software and methods.

[0048] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0049] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rail vehicle driver's cab control cabinet impact test device, characterized in that: The invention comprises a workbench (5), wherein the top of the workbench (5) is fixedly connected to a mounting ring (1) via a mounting frame (11), one side of the mounting ring (1) is rotatably connected to a rotating ring (2), the rotating ring (2) is driven by a first driving device to rotate on the mounting ring (1), the rotating ring (2) is fixedly connected to a mounting plate (10), the mounting plate (10) is rotatably connected to an impact device (9) for launching an impact object (27), the first rotating shaft (16) is perpendicular to the mounting plate (10) and is driven by a second driving device to drive the impact device (9) to rotate; A vibration table (4) is provided inside the rotating ring (2), and a support plate (7) is rotatably connected to the bottom of the vibration table (4) via a second rotating shaft. The second rotating shaft and the vibration table (4) are perpendicular to each other, and the second rotating shaft is driven by a third driving device (8) to drive the vibration table (4) to rotate. The support plate (7) is supported by a bracket (6); The impact device (9) includes an angle adjustment plate (15), the angle adjustment plate (15) is rotatably connected to the mounting plate (10) via a first rotating shaft (16), and a force storage rod (18), a fourth driving device, and a storage box (22) are provided on the angle adjustment plate (15), the force storage rod (18) is arranged along the length direction of the angle adjustment plate (15), and the fourth driving device can drive the force storage rod (18) to move along the length direction of the angle adjustment plate (15); The storage box (22) is located on one side of the power storage rod (18) and is used to place the impactor (27). An inlet (31) is provided through one end of the storage box (22) close to the power storage rod (18), and an outlet (30) is provided through one end of the storage box (22) away from the power storage rod (18). A mounting groove (33) is provided in the storage box (22) near the outlet (30), and a cylinder (34) is provided in the mounting groove (33). The piston rod at the top of the cylinder (34) is connected to a baffle (32) for limiting the impactor (27), and the top of the baffle (32) extends outside the mounting groove (33).

2. The impact test device for a railway vehicle driver's cab control cabinet according to claim 1 is characterized in that: A plurality of collars (17) are arranged at intervals on the angle adjustment plate (15); the force storage rod (18) is slidably embedded in the inner side of the collar (17); and an abutment plate (25) is fixedly sleeved on the force storage rod (18); The angle adjustment plate (15) is also rotatably connected to a third rotating shaft (26), and the third rotating shaft (26) is located above the force storage rod (18). A plurality of first abutting shafts (35) cooperating with the abutting plate (25) are provided on the side wall of the third rotating shaft (26) away from the angle adjustment plate (15). The length of the first abutting shaft (35) is greater than the distance between the third rotating shaft (26) and the abutting plate (25). A one-way bearing (36) is also provided on the third rotating shaft (26). When the force storage rod (18) moves in a direction away from the storage box (22), the abutting plate (25) drives the third rotating shaft (26) to rotate through the first abutting shaft (35). At this time, the outer ring of the one-way bearing (36) does not rotate. A plurality of second abutting shafts (37) corresponding to the first abutting shafts (35) are provided on the side wall of the one-way bearing (36); The angle adjustment plate (15) is further provided with a telescopic touch switch (38) electrically connected to the cylinder (34); the telescopic touch switch (38) is located above the one-way bearing (36); and the distance between the telescopic touch switch (38) and the one-way bearing (36) is less than the length of the second abutting shaft (37).

3. The impact test device for a railway vehicle driver's cab control cabinet according to claim 2 is characterized in that: The telescopic touch switch (38) includes an outer cylinder (39), an inner cylinder (40) is slidably embedded in the outer cylinder (39), the bottom of the inner cylinder (40) extends outside the outer cylinder (39), the inner cylinder (40) is elastically connected to the outer cylinder (39) via a first spring (42), and a pressure sensor (41) is provided at the top of the inner cavity of the outer cylinder (39) and is matched with the inner cylinder (40), and the pressure sensor (41) is electrically connected to the cylinder (34).

4. The impact test device for a railway vehicle driver's cab control cabinet according to claim 3 is characterized in that: A guide surface (48) is provided at the bottom of the inner cylinder (40). The guide surface (48) is located on a side of the inner cylinder (40) close to the storage box (22). The guide surface (48) is arranged at an angle.

5. The impact test device for a railway vehicle driver's cab control cabinet according to claim 2 is characterized in that: A second spring (24) is sleeved on the power storage rod (18), one end of the second spring (24) is connected to one of the collars (17), and the other end is connected to the abutment plate (25); The fourth driving device includes a rack (19) and an incomplete gear (20), wherein the rack (19) is fixedly connected to the power storage rod (18), and the incomplete gear (20) is provided on the angle adjustment plate (15) and driven by the first motor (21) to achieve rotation, and the tooth block of the incomplete gear (20) and the rack (19) are meshed with each other.

6. The impact test device for a railway vehicle driver's cab control cabinet according to claim 1, characterized in that: The top of the storage box (22) is screwed with a placement box (23) connected thereto, and a plurality of impact objects (27) are stacked in sequence from top to bottom in the placement box (23). A push plate (29) is slidably embedded in the placement box (23), and the push plate (29) is located above the topmost impact object (27). The push plate (29) is connected to the top of the placement box (23) through a third spring (28).

7. The impact test device for a railway vehicle driver's cab control cabinet according to claim 1 is characterized in that: The first driving device comprises a first motor (13), the first motor (13) being arranged on a workbench (5), a first gear (14) being fixedly sleeved on the first motor (13), and a first annular rack (12) meshing with the first gear (14) being arranged on a side wall of the rotating ring (2).

8. The impact test device for a railway vehicle driver's cab control cabinet according to claim 1 is characterized in that: A guide rail (43) is provided below the workbench (5), and the workbench (5) is slidably connected to the guide rail (43) via a slide rail (44). Mounting seats (45) are provided on both sides of the workbench (5), and the two mounting seats (45) are connected via a lead screw (46). The lead screw (46) is threadedly connected to the workbench (5), and the lead screw (46) is driven by a second motor (47) to achieve rotation.

9. The impact test device for a railway vehicle driver's cab control cabinet according to claim 8, characterized in that: There are two guide rails (43) arranged at intervals on both sides of the bottom of the workbench (5).

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