Multidirectional impact test device for guide vehicle

Abstract

The invention discloses a multi-directional impact testing device for a guide vehicle, and belongs to the technical field of guide vehicle performance testing. Comprising an overturning platform capable of taking the Y direction as a rotating shaft and an impact plate capable of impacting towards the guide vehicle. The guide vehicle in a self-locking state can be vertically placed on the top side of a rotating disc arranged on the overturning platform, and the rotating disc can rotate along a rotating shaft perpendicular to the top side of the rotating disc; the impact plate is connected to the output end of a force application air cylinder, the force application air cylinder is hinged to a mounting base capable of vertically ascending and descending in the Z direction and horizontally moving in the Y direction, the force application air cylinder takes the Y direction as a rotating shaft, a traction block capable of vertically ascending and descending in the Z direction is arranged on the mounting base, and a traction rod is connected to the middle of the traction block and the middle of the force application air cylinder. The two ends of the traction rod are hinged to the traction block and the force application air cylinder correspondingly. According to the multi-directional impact test device for the guide vehicle, multi-angle adjustment of impact test of the guide vehicle can be realized, and the accuracy, the reliability and the efficiency of the test are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of guide vehicle performance testing, and in particular relates to a multi-directional impact testing device for a guide vehicle. Background Art

[0002] During the research and development and quality inspection of the guide vehicle, multi-directional impact testing is a key step in evaluating its structural strength and safety performance.

[0003] However, there are many problems in this field that need to be solved urgently: First, there is a lack of special equipment for multi-directional impact testing of guide vehicles on the market, and related testing work is difficult to carry out efficiently and accurately; second, the existing manual impact testing method cannot accurately control the force and position of the impact, resulting in a lack of accuracy and reliability in the test results, and it is difficult to truly reflect the actual impact resistance of the guide vehicle; third, the guide vehicle needs to simulate impact tests on slopes at different angles, but under the current conditions, the slope angle cannot be changed conveniently and accurately, which limits the performance evaluation of the guide vehicle under complex terrain impact conditions; fourth, all sides of the guide vehicle need to be impact tested, and manually rotating the guide vehicle is not only inefficient, but also cannot guarantee the accuracy of the rotation angle, resulting in large errors in the testing process, seriously affecting the validity and integrity of the test data.

[0004] Therefore, there is an urgent need for a multi-directional impact testing device for a guide vehicle that can achieve precise control and multi-angle adjustment to meet the high-quality testing requirements of the guide vehicle. Summary of the Invention

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a multi-directional impact test device for a guided vehicle, which can achieve multi-angle adjustment of the guided vehicle impact test and improve the accuracy, reliability and efficiency of the test.

[0006] To achieve the above-mentioned object, the technical solution adopted by the present invention is as follows: a multi-directional impact test device for a guide vehicle, comprising a flip platform capable of rotating with the Y direction as the axis of rotation and an impact plate capable of impacting toward the guide vehicle; The guide vehicle in the self-locking state can be placed upright on the top side of a turntable provided on the turning platform, and the turntable can rotate along a rotation axis perpendicular to the top side thereof; The impact plate is connected to the output end of the force cylinder, and the force cylinder is hinged on a mounting base that can be vertically lifted and lowered along the Z direction and horizontally moved along the Y direction. The force cylinder uses the Y direction as the rotation axis, and a traction block that can be vertically lifted and lowered along the Z direction is provided on the mounting base. The traction block is connected to the middle part of the force cylinder with a traction rod, and the two ends of the traction rod are respectively hinged to the traction block and the force cylinder.

[0007] Optionally, the flipping platform is hinged to a test base frame, and a gantry and a winch are provided on the test base frame. The steel cable on the winch can pass around a pulley set provided on the top of the gantry and be connected to the flipping platform, and the position on the flipping platform where the steel cable is connected is away from the end where the steel cable is hinged to the test base frame.

[0008] Optionally, the flip platform and the test base frame are hinged via a bearing seat, a connecting shaft and a positioning block, the two ends of the connecting shaft are respectively sleeved with bearing seats, the bearing seats can be fixedly connected to the test base frame, and the positioning block can be fixedly connected to the connecting shaft and the flip platform; Wherein, a first angle encoder for monitoring the rotation angle of the connecting shaft is provided on the test base frame, and the first angle encoder is electrically connected to the hoist.

[0009] Optionally, a second angle encoder for monitoring the rotation angle of the force-applying cylinder is provided on the mounting seat, and the second angle encoder is electrically connected to the winch.

[0010] Optionally, a force sensor is provided between the impact plate and the output end of the force-applying cylinder.

[0011] Optionally, the mounting seat is provided with a first linear drive assembly for driving the traction block to vertically lift and lower along the Z direction, and the traction block can be slidably connected to the mounting seat via a linear guide rail provided along the Z direction.

[0012] Optionally, the turntable is rotatably connected to the top side of the flip platform, and a rotation drive unit for driving the turntable to rotate is provided on the bottom side of the flip platform; Wherein, the flip platform is provided with a plurality of bull's eye ball seats which can be connected to the bottom side of the turntable in a rolling manner.

[0013] Optionally, the mounting seat is slidably connected to the lifting seat along the Y direction, and the lifting seat is provided with a second linear drive component for driving the mounting seat to move horizontally back and forth along the Y direction; Among them, the two ends of the lifting seat are movably mounted on the outer periphery of the guide shaft arranged along the Z direction, and the two ends of the guide shaft are fixedly connected to the gantry and the test base frame respectively, and the gantry or the test base frame is provided with a third linear drive component for driving the lifting seat to vertically lift and lower along the Z direction.

[0014] Compared with existing technologies, the present invention achieves the following beneficial effects: by combining a tilting platform capable of rotating about the Y axis with a rotatable turntable, the guide vehicle, which is self-locking and placed on the turntable, can be adjusted in multiple dimensions. Furthermore, by combining an impact plate with adjustable impact position and angle, the impact plate can strike different locations on the guide vehicle from different angles and positions, greatly expanding the diversity of test conditions and improving the authenticity of the guide vehicle impact test. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and examples.

[0016] Figure 1 2 is a schematic structural diagram of a guide vehicle placed on a guide vehicle multi-directional impact test device in a preferred embodiment of the present invention; Figure 2 2 is a schematic structural diagram of a test base frame, a gantry frame, a lifting seat and a third linear drive assembly in a preferred embodiment of the present invention; Figure 3 This is a structural diagram of the lifting seat, the mounting seat, the second linear drive assembly, and the force-applying cylinder when assembled together in a preferred embodiment of the present invention; Figure 4 2 is a schematic structural diagram of a preferred embodiment of the present invention in which the flip platform and the test base frame are hinged; Among them, 1. Flipping platform; 2. Guide vehicle; 3. Impact plate; 4. Turntable; 5. Force cylinder; 6. Mounting seat; 7. Traction block; 8. Traction rod; 9. Test base frame; 10. Gantry; 11. Winch; 12. Steel cable; 13. Pulley block; 14. First angle encoder; 15. Second angle encoder; 16. Force sensor; 17. First linear drive assembly; 18. Rotation drive unit; 19. Bull's eye ball seat; 20. Lifting seat; 21. Second linear drive assembly; 22. Guide shaft; 23. Third linear drive assembly. DETAILED DESCRIPTION

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0018] It should be noted that if there are directional indications (such as up, down, bottom, top, etc.) involved in this embodiment, the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. Unless otherwise clearly specified and defined, the terms "set", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a communication between the internal parts of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example 1

[0019] like Figure 1-Figure 4 As shown, a multi-directional impact test device for a guide vehicle comprises a flip platform 1 capable of rotating about the Y direction and an impact plate 3 capable of impacting toward a guide vehicle 2. The guide vehicle 2 in a self-locking state can be placed upright on the top side of a turntable 4 provided on the flip platform 1, that is, the guide vehicle 2 placed on the turntable 4 can remain stationary relative to the turntable 4, while the guide vehicle 2 placed on the turntable 4 can be flipped (tilted) to a certain angle synchronously with the flip platform 1. At the same time, since the turntable 4 can rotate along a rotation axis perpendicular to its top side, the guide vehicle 2 placed on the turntable 4 can be rotated to any angle relative to the flip platform 1 as required. The impact plate 3 is connected to the output end of the force cylinder 5, that is, the force cylinder 5 can drive the impact plate 3 to impact toward the guide vehicle 2 placed on the turntable 4. It should be noted that the force cylinder 5 is hinged on a mounting base 6 that can be lifted vertically along the Z direction and moved horizontally along the Y direction. The force cylinder 5 uses the Y direction as its rotation axis, and a traction block 7 that can be lifted vertically along the Z direction is provided on the mounting base 6. A traction rod 8 is connected to the middle of the traction block 7 and the force cylinder 5, and the two ends of the traction rod 8 are respectively hinged to the traction block 7 and the force cylinder 5. That is, by moving the traction block 7 up and down along the Z direction, the force cylinder 5 can be pulled to a certain angle with the Y direction as its rotation axis by changing the angle of the traction rod 8, thereby adjusting the impact angle of the impact plate 3. At the same time, in conjunction with the vertical lifting and horizontal movement of the mounting base 6, the impact direction and impact position of the impact plate 3 can be flexibly adjusted according to demand.

[0020] Specifically, the flipping platform 1, which can be flipped about the Y axis, is combined with a rotatable turntable 4, allowing the guide vehicle 2, which is self-locked and placed on the turntable 4, to achieve multi-dimensional posture adjustment. Furthermore, the impact plate 3, which can adjust the impact position and angle, allows the impact plate 3 to strike different locations on the guide vehicle 2 from different angles and positions, greatly expanding the diversity of test conditions and improving the authenticity of the impact test of the guide vehicle 2.

[0021] It should be noted that the Y and Z directions mentioned above correspond to the Y and Z axes in a rectangular coordinate system. That is, the Y direction is parallel to or coincides with the Y axis (both positive and negative) in the rectangular coordinate system, and the Z direction is parallel to or coincides with the Z axis (both positive and negative) in the rectangular coordinate system. The Y and Z directions are perpendicular to each other. The phrases "the flip platform 1 rotates with the Y direction as its axis" and "the force cylinder 5 rotates with the Y direction as its axis" indicate that the rotation axes of the flip platform 1 and the force cylinder 5 are parallel to the Y axis in the rectangular coordinate system. Furthermore, the turntable 4 mentioned above is parallel to the flip platform 1, meaning that the tilt angle of the flip platform 1 relative to the horizontal plane is consistent with the tilt angle of the turntable 4 relative to the horizontal plane. At the same time, the force-applying cylinder 5 mentioned above can adopt the standard cylinder in the existing technology, and a force sensor 16 is arranged between the impact plate 3 and the output end of the force-applying cylinder 5. The force sensor 16 can feedback the impact force applied by the impact plate 3 to the guide vehicle 2. The impact force applied by the impact plate 3 to the guide vehicle 2 can be monitored in real time to ensure the accuracy and reliability of the test results.

[0022] Further, such as Figure 1 As shown, the above-mentioned flip platform 1 is hinged on the test base frame 9, and the test base frame 9 is provided with a gantry 10 and a winch 11. The steel cable 12 on the winch 11 can pass around the pulley group 13 provided on the top of the gantry 10 and be connected to the flip platform 1, and the position on the flip platform 1 connected to the steel cable 12 is far away from the end thereof hinged to the test base frame 9. Specifically, the flip platform 1 is fixedly connected with a lifting ring away from the end thereof hinged to the test base frame 9, and one end of the steel cable 12 is fixedly connected with a hook that can be hooked with the lifting ring, specifically as shown in FIG. Figure 1 As shown. This technical solution can use the winch 11 to retract and extend the steel cable 12 connected to the flip platform 1, so that the horizontally placed flip platform 1 can be flipped and raised around its rotation axis, and the flip platform 1 that is flipped and raised around its rotation axis can be gradually lowered until it is placed horizontally. Thereby, the inclination angle of the flip platform 1 (the turntable 4 and the guide vehicle 2 standing on the turntable 4 in a self-locking state) can be adjusted arbitrarily according to needs. It should be noted that in this technical solution, in order to prevent the guide vehicle 2 in a self-locking state from being unable to stand on the turntable 4 waiting for testing due to its unstable center of gravity, the inclination angle between the top side of the turntable 4 for placing the guide vehicle 2 and the horizontal plane needs to be maintained at 0° to 30°.

[0023] The above, such as Figure 4 As shown, the tilting platform 1 and the test base frame 9 are hingedly connected via bearing blocks, a connecting shaft, and positioning blocks. Bearing blocks are mounted on each end of the connecting shaft, which is securely attached to the test base frame 9. The positioning blocks are securely attached to the connecting shaft and the tilting platform 1. The bearing blocks, connecting shaft, positioning blocks, tilting platform 1, and test base frame 9 interact with each other to ensure the stability of the tilting of the tilting platform 1. Furthermore, a first angle encoder 14 is provided on the test base frame 9 to monitor the rotation angle of the connecting shaft. This first angle encoder 14 is electrically connected to the hoist 11, allowing precise control of the tilt angle of the tilting platform 1 (turntable 4) relative to the horizontal. Similarly, to ensure that the impact direction of the impact block matches the tilt angle of the tilting platform 1 (turntable 4), a second angle encoder 15 is provided on the mounting base 6 to monitor the rotation angle of the force cylinder 5. This second angle encoder 15 is electrically connected to the hoist 11. Example 2

[0024] like Figure 1-Figure 4 As shown, based on the first embodiment, as Figure 3 As shown, a first linear drive assembly 17 is provided on the mounting seat 6 for driving the traction block 7 to vertically lift and lower along the Z direction, and the traction block 7 can be slidably connected to the mounting seat 6 through a linear guide rail provided along the Z direction. The linear guide rail can ensure the linear motion accuracy of the traction block 7 and can limit the degree of freedom of the traction block 7 so that the traction block 7 can only be vertically lifted and lowered along the Z direction.

[0025] Further, such as Figure 4 As shown, the turntable 4 is rotatably connected to the top side of the turning platform 1, and a rotation drive unit 18 for driving the turntable 4 is provided on the bottom side of the turning platform 1. The rotation drive unit 18 includes a servo motor and a reducer drivingly connected to the output end of the servo motor. The output end of the reducer is also drivably connected to the turntable 4. In order to increase the load-bearing capacity of the turntable 4 and ensure the stability of the guide vehicle 2 as it rotates with the turntable 4, the turning platform 1 is provided with several bull's eye ball seats 19 that are rollingly connected to the bottom side of the turntable 4. These bull's eye ball seats 19 are arranged in a circular array around the rotation axis of the turntable 4.

[0026] As mentioned above, the bull's eye ball seat 19 includes a fixed seat fixedly connected to the flip platform 1, and a ball movably embedded in the top of the fixed seat. The ball cannot be detached from the fixed seat, and the ball can roll relative to the fixed seat, that is, the bull's eye ball seat 19 can be connected to the bottom side of the turntable 4 in a rolling manner through the ball.

[0027] Further, such as Figure 1 、 Figure 3As shown, the mounting base 6 is slidably connected to the lifting base 20 along the Y direction. Specifically, the mounting base 6 and the lifting base 20 can be slidably connected via multiple sets of linear guide rails to ensure the accuracy of the linear motion of the mounting base 6 along the Y direction. Furthermore, the lifting base 20 is provided with a second linear drive assembly 21 for driving the mounting base 6 to move horizontally back and forth in the Y direction. Furthermore, the ends of the lifting base 20 are movably mounted on the outer periphery of a guide shaft 22 disposed along the Z direction. Furthermore, in this technical solution, a linear bearing seat that can slide with the guide shaft 22 can be fixedly connected to the lifting base 20 to ensure smooth linear motion of the lifting base 20. The ends of the guide shaft 22 are respectively fixedly connected to the gantry 10 and the test base frame 9. The gantry 10 or the test base frame 9 is provided with a third linear drive assembly 23 for driving the lifting base 20 to move vertically in the Z direction. With the cooperation of the second linear drive assembly 21 and the third linear drive assembly, the mounting base 6 can be lifted vertically in the Z direction along with the lifting base 20, while also being able to move horizontally in the Y direction.

[0028] In this embodiment, the drive connection includes one or more of a variety of methods, such as direct connection, coupling connection, belt drive connection, and speed reducer drive connection. Furthermore, the first linear drive assembly 17, the second linear drive assembly 21, and the third linear drive assembly 23 described above are conventional technologies, capable of converting the energy of a power source into displacement or thrust along a linear direction through energy conversion or mechanical transmission, such as a servo slide, to meet the linear motion requirements of the lifting base 20, the mounting base 6, and the traction block 7.

[0029] Among them, taking the linear drive assembly composed of a screw rod, a screw sleeve, a bearing seat and a servo motor as the first linear drive assembly 17 for driving the traction block 7 linear motion as an example, Figure 4 As shown, the screw sleeve is threadedly connected to the screw rod, and the screw sleeve is fixedly connected to the traction block 7. The bearing seat can be fixedly connected to the mounting seat 6 by fasteners such as bolts, and the inner hole of the shaft on the bearing seat can be interference fit with the end of the screw rod. One end of the screw rod can be driven and connected to the output shaft of the servo motor, so that the servo motor can drive the screw rod to rotate along the Z direction (that is, the screw rod can rotate with a straight line parallel to the Z direction as the rotation axis). At the same time, since the degree of freedom of the traction block 7 is also limited by the linear guide rail, the traction block 7 can only be lifted and lowered vertically along the Z direction.

[0030] Working principle: First, the operator can use a forklift, crane or other equipment to place the guide vehicle 2 in a self-locking state on the horizontally placed turntable 4, and then use the winch 11 to reel in the steel cable 12 connected to the flip platform 1, so that the horizontally placed turntable 4 and the guide vehicle 2 can be flipped and tilted along with the flip platform 1. The tilt angle of the guide vehicle 2 can be adjusted as needed, and the tilt angle can be detected in real time by the first angle encoder 14. Subsequently, through the mutual cooperation between the first linear drive component 17, the second linear drive component 21, and the third linear drive component 23, the impact plate 3 provided at the output end of the force cylinder 5 can be adjusted to a specific position and angle, so that the impact plate 3 can initiate impacts on different positions on the guide vehicle 2 from different angles and positions, greatly expanding the diversity of test conditions and improving the authenticity of the impact test of the guide vehicle 2.

[0031] The above description is based on the ideal embodiment of the present invention. Based on the above description, relevant personnel can make various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the content of the specification and must be determined according to the scope of the claims.

Claims

1. A multi-directional impact test device for a guided vehicle, characterized by: It comprises a flip platform (1) capable of rotating with the Y direction as the axis of rotation and an impact plate (3) capable of impacting toward the guide vehicle (2); The guide vehicle (2) in a self-locking state can be placed upright on the top side of a turntable (4) provided on the turning platform (1), and the turntable (4) can rotate along a rotation axis perpendicular to its top side; The impact plate (3) is connected to the output end of the force cylinder (5), and the force cylinder (5) is hinged on a mounting seat (6) that can be vertically lifted and lowered along the Z direction and horizontally moved along the Y direction. The force cylinder (5) uses the Y direction as a rotation axis, and a traction block (7) that can be vertically lifted and lowered along the Z direction is provided on the mounting seat (6). The traction block (7) is connected to the middle of the force cylinder (5) with a traction rod (8), and the two ends of the traction rod (8) are respectively hinged to the traction block (7) and the force cylinder (5).

2. The multi-directional impact test device for a guided vehicle according to claim 1, characterized in that: The flipping platform (1) is hinged to a test base frame (9), and a gantry (10) and a winch (11) are provided on the test base frame (9). The steel cable (12) on the winch (11) can pass over a pulley block (13) provided on the top of the gantry (10) and be connected to the flipping platform (1), and the position on the flipping platform (1) where the steel cable (12) is connected is away from the end thereof hinged to the test base frame (9).

3. The multi-directional impact test device for a guided vehicle according to claim 2, characterized in that: The flip platform (1) and the test base frame (9) are hinged via a bearing seat, a connecting shaft and a positioning block, and the two ends of the connecting shaft are respectively provided with bearing seats, the bearing seats can be fixedly connected to the test base frame (9), and the positioning block can be fixedly connected to the connecting shaft and the flip platform (1); Wherein, a first angle encoder (14) for monitoring the rotation angle of the connecting shaft is provided on the test base frame (9), and the first angle encoder (14) is electrically connected to the hoist (11).

4. The multi-directional impact test device for a guided vehicle according to claim 2, characterized in that: A second angle encoder (15) for monitoring the rotation angle of the force-applying cylinder (5) is provided on the mounting seat (6), and the second angle encoder (15) is electrically connected to the hoist (11).

5. The multi-directional impact testing device for a guided vehicle according to claim 1, characterized in that: A force sensor (16) is provided between the impact plate (3) and the output end of the force-applying cylinder (5).

6. The multi-directional impact test device for a guided vehicle according to claim 1, characterized in that: The mounting seat (6) is provided with a first linear drive assembly (17) for driving the traction block (7) to vertically lift along the Z direction, and the traction block (7) can be slidably connected to the mounting seat (6) via a linear guide rail provided along the Z direction.

7. The multi-directional impact testing device for a guided vehicle according to claim 1, characterized in that: The turntable (4) is rotatably connected to the top side of the flip platform (1), and a rotation drive unit (18) for driving the turntable (4) to rotate is provided on the bottom side of the flip platform (1); Wherein, the turning platform (1) is provided with a plurality of bull's eye ball seats (19) capable of being rollingly connected to the bottom side of the turntable (4).

8. The multi-directional impact testing device for a guided vehicle according to claim 1, characterized in that: The mounting seat (6) is slidably connected to the lifting seat (20) along the Y direction, and the lifting seat (20) is provided with a second linear drive component (21) for driving the mounting seat (6) to move horizontally back and forth along the Y direction; The two ends of the lifting seat (20) are movably mounted on the outer periphery of a guide shaft (22) arranged along the Z direction, and the two ends of the guide shaft (22) are fixedly connected to the gantry (10) and the test base frame (9), respectively. A third linear drive component (23) for driving the lifting seat (20) to vertically lift along the Z direction is provided on the gantry (10) or the test base frame (9).

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