Horizontal multichannel vibration test bench

Abstract

The invention discloses a horizontal multi-channel vibration test bench which comprises a table board, and a supporting mechanism and a driving mechanism are installed on the table board. The supporting mechanism comprises a supporting sliding table and a driving sliding table which are arranged on the table top in a sliding mode, the supporting sliding table can be locked, the inner side of the supporting sliding table and the inner side of the driving sliding table are each provided with a plurality of sets of installation positions arranged front and back, and shock absorbers are detachably installed between the corresponding installation positions of the supporting sliding table and the driving sliding table. The shock absorber is connected with a mounting position on the inner side of the supporting sliding table through a pull pressure sensor, an acceleration sensor is arranged on the outer side of the supporting sliding table, and the movable end of a displacement sensor arranged on the table top is connected with the outer side of the driving sliding table; the driving mechanism comprises a motor and a transmission mechanism, and the motor and the transmission mechanism drive the driving sliding table to slide left and right along the table top. The method has the advantages that multiple test modes and flexible switching of different test modes are achieved, the test efficiency is improved, and meanwhile the test cost and the operation risk are reduced.

Description

Technical Field

[0001] This invention relates to a test and verification bench for vehicle suspension systems and vibration control, and more particularly to a horizontal multi-channel vibration test bench. Background Technology

[0002] As one of the key components of a vehicle's suspension system, the suspension system can quickly dampen vibrations between the frame and the body to improve the vehicle's ride stability and comfort. Therefore, the performance and lifespan of the suspension system have a significant impact on the vehicle.

[0003] To ensure that the suspension system meets various performance requirements, its various indicators must be tested before mass production. Vibration test benches are one of the devices used to test and evaluate the performance of suspension systems. Currently, most suspension test benches are hydraulic, which suffers from drawbacks such as high cost, large space requirements, and high operational risks. Furthermore, their testing efficiency is low and the testing cycle is long, severely impacting product development progress. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a horizontal multi-channel vibration test bench to realize multiple test modes and flexible switching between different test modes, improve test efficiency, and at the same time reduce test costs and operational risks.

[0005] This invention is achieved through the following technical solution: A horizontal multi-channel vibration test bench includes a table, on which a support mechanism and a drive mechanism are mounted; The support mechanism includes a support slide and a drive slide that are slidably mounted on the table surface. The support slide and the drive slide are arranged in the left-right direction and can only slide in the left-right direction relative to the table surface. The left-right position of the support slide relative to the table surface can be locked by a locking structure. The side opposite to the support slide and the drive slide is defined as the inner side and the side opposite to each other is defined as the outer side. The inner side of the support slide and the inner side of the drive slide are respectively provided with multiple sets of mounting positions arranged in the front-back direction. A vibration damper is detachably installed between the corresponding mounting positions on the inner sides of the support slide and the drive slide. One end of the vibration damper is detachably installed on the mounting position on the inner side of the drive slide, and the other end of the vibration damper is detachably installed on the mounting position on the inner side of the support slide through a tension and compression sensor. An acceleration sensor is provided on the outer side of the support slide, and a displacement sensor is provided on the table surface at the position located on the outer side of the drive slide. The movable end of the displacement sensor is connected to the outer side of the drive slide. The driving mechanism includes a motor and a transmission mechanism. The output end of the motor is connected to the outside of the drive slide through the transmission mechanism. The motor and the transmission mechanism drive the drive slide to slide left and right along the table surface.

[0006] As a preferred embodiment of the above-mentioned horizontal multi-channel vibration test bench, the vibration damper is detachably mounted on two tooling fixtures at both ends. The tooling fixture at one end of the vibration damper is detachably mounted on the mounting position inside the drive slide. The tooling fixture at the other end of the vibration damper is detachably connected to one end of the tension / compression sensor, and the other end of the tension / compression sensor is detachably connected to the mounting position inside the support slide.

[0007] As a preferred embodiment of the above-mentioned horizontal multi-channel vibration test bench, the mounting position on the inner side of the support slide is the first mounting hole, and the mounting position on the inner side of the drive slide is the second mounting hole. The tension and compression sensors are connected to the first mounting hole on the inner side of the support slide, and the tooling fixture is connected to the second mounting hole on the inner side of the drive slide by screws.

[0008] As a preferred embodiment of the above-mentioned horizontal multi-channel vibration test bench, the tooling fixture is a U-shaped frame with an inward opening. The top and bottom plates of the U-shaped frame are respectively provided with threaded holes. The vibration damper is provided with lifting rings at both ends. The lifting rings at the end of the vibration damper extend into the opening of the U-shaped frame. The upper and lower pointed screws are screwed into the threaded holes of the top and bottom plates of the U-shaped frame and extend into the inner hole of the lifting rings at the end of the vibration damper, thereby realizing the detachable connection between the vibration damper and the tooling fixture.

[0009] As a preferred embodiment of the above-mentioned horizontal multi-channel vibration test bench, the locking structure includes several locking screws, locking parts are provided on the front and rear sides of the support slide, and locking hole groups are provided on the front and rear sides of the table. The front and rear locking hole groups correspond to the locking parts on the front and rear sides of the support slide, and each locking hole group includes multiple locking holes arranged at intervals along the left and right direction of the table. By passing the locking screws through the through holes of the locking parts of the support slide and the locking holes on the table in sequence and screwing on the nuts, the relative position of the support slide and the table is locked.

[0010] As a preferred embodiment of the above-mentioned horizontal multi-channel vibration test bench, the transmission mechanism includes an electric cylinder and a transmission belt. The output end of the motor is provided with a first transmission wheel, and the input end of the electric cylinder is provided with a second transmission wheel. The first transmission wheel and the second transmission wheel are connected by a transmission belt. The output end of the electric cylinder is connected to the outside of the drive slide.

[0011] As a preferred embodiment of the above-mentioned horizontal multi-channel vibration test bench, the drive mechanism and displacement sensor are both mounted on the drive mechanism base, the drive mechanism base is fixedly mounted on the table, the motor and electric cylinder are respectively mounted on the drive mechanism base, the drive mechanism base is equipped with a reduction gearbox, and the first transmission wheel, the second transmission wheel and the transmission belt are respectively mounted in the reduction gearbox.

[0012] As a preferred embodiment of the above-mentioned horizontal multi-channel vibration test bench, the bench surface is provided with two linear guide rails arranged in a front-to-back pattern. Each linear guide rail extends in the left-to-right direction, and the support slide and the drive slide are respectively slidably engaged with the two linear guide rails through guide rail sliders.

[0013] As a preferred embodiment of the above-mentioned horizontal multi-channel vibration test bench, the linear guide rail has an arc-shaped cross-section, the slide groove of the guide rail slider matches the shape of the linear guide rail, and limit retaining rings are slidably fitted at both ends of the linear guide rail. The limit retaining rings are locked to the linear guide rail by being screwed into the lateral screw holes of the limit retaining rings by lateral locking screws.

[0014] The present invention has the following advantages over the prior art: 1. The present invention provides a horizontal multi-channel vibration test bench, which has a support slide and a drive slide arranged slidably on the table. The inner side of the support slide and the inner side of the drive slide are provided with multiple sets of mounting positions, which can selectively install one or more vibration dampers. In conjunction with various sensors, it can realize multiple test modes and flexible switching between different test modes, which greatly improves the test efficiency and can be quickly and cost-effectively applied to the development of automotive suspension systems. Moreover, the test bench has a simple overall structure, is easy to build and operate, and has low test costs.

[0015] 2. The present invention provides a horizontal multi-channel vibration test bench, which adopts a horizontal main structure. Compared with the traditional vertical structure, the direction of the excitation force generated during the test by the horizontal main structure is horizontal, which has less impact on the foundation. Therefore, it has stronger bearing capacity and is applicable to a wider range of scenarios. Several threaded mounting holes can be arranged on the table surface, which can be combined with various tooling to expand the types and sizes of test workpieces. This eliminates the need for operators to work at high or inconvenient locations, reducing installation difficulty and operational risks.

[0016] 3. The horizontal multi-channel vibration test bench provided by this invention adopts a motor-driven mechanical structure instead of a traditional hydraulic drive structure, eliminating the need for large equipment such as hydraulic sources and hydraulic pumps, reducing the space occupied by the equipment, and eliminating the need for regular cleaning and replacement of hydraulic oil, thus reducing equipment maintenance costs. The motor-driven structure has low noise, low distortion, high vibration waveform accuracy, and fast response speed in high-frequency vibration, and can more accurately simulate complex vibration waveforms. Moreover, the motor-driven structure can be debugged and operated immediately after power is connected, without the need to start the hydraulic power source for preheating as in the traditional hydraulic drive structure, saving test time. In addition, the operating noise of the motor is much lower than that of the hydraulic pump, reducing noise pollution in the test environment. Attached Figure Description

[0017] Figure 1 This is an overall top view of the vibration test bench of the present invention.

[0018] Figure 2 This is a structural schematic diagram of the linear guide rail installation method of the present invention.

[0019] Figure 3 This is a partially enlarged view of the installation method of the guide rail slider of the present invention.

[0020] Figure 4 This is a partially enlarged view of the installation method of the limiting retaining ring of the present invention.

[0021] Figure 5 This is a schematic diagram of the locking structure that supports the slide and the table surface of the present invention.

[0022] Figure 6 This is a schematic diagram of the installation part of the vibration damper of the present invention.

[0023] Figure 7 This is a schematic diagram of the drive mechanism of the present invention.

[0024] Figure 8 This is a schematic diagram of the connection between the drive mechanism and the support mechanism of the present invention.

[0025] Figure 9 This is a structural schematic diagram of the arrangement of the present invention in the test mode of the mechanical characteristics of the vibration damper.

[0026] Figure 10 This is a schematic diagram of the first arrangement method of the present invention under the fatigue durability test mode of the vibration damper.

[0027] Figure 11 This is a schematic diagram of the second arrangement method of the present invention under the fatigue durability test mode of the vibration damper.

[0028] Figure 12 This is a schematic diagram of the third arrangement method of the present invention under the fatigue durability test mode of the vibration damper.

[0029] Figure 13 This is a schematic diagram of the arrangement of the present invention in the single-degree-of-freedom suspension vibration test mode.

[0030] Numbering on the map: 1. Tabletop; 2. Linear guide rail; 3. Guide rail slider; 4. Limiting retaining ring; 5. Lateral locking screw; 6. Drive mechanism base; 7. Displacement sensor; 8. Electric cylinder; 9. Motor; 10. Gearbox; 11. First transmission wheel; 12. Second transmission wheel; 13. Transmission belt; 14. Drive slide; 15. Support slide; 16. Acceleration sensor; 17. Tension / compression sensor; 18. Counterweight; 19. Tooling fixture; 20. Vibration damper; 21. Pointed screw; 22. Locking screw; 23. Nut; 24. Mounting hole; 25. Lifting ring; 26. Piston rod; 27. Locking hole; 28. First mounting hole; 29. ​​Second mounting hole. Detailed Implementation

[0031] The embodiments of the present invention are described in detail below. These embodiments are implemented based on the technical solution of the present invention, and provide detailed implementation methods and specific operation processes. However, the scope of protection of the present invention is not limited to the following embodiments.

[0032] See Figures 1 to 13 This embodiment discloses a horizontal multi-channel vibration test bench, including a table 1, on which a support mechanism and a drive mechanism are installed.

[0033] The support mechanism supports the vibration damper 20 and transmits the power generated by the drive mechanism to the vibration damper 20, causing the vibration damper 20 to vibrate. The support mechanism includes a support slide 15 and a drive slide 14, which are respectively slidably mounted on the platform 1. The support slide 15 and the drive slide 14 are arranged in the left-right direction and can only slide in the left-right direction relative to the platform 1. The platform 1 is provided with two linear guide rails 2 arranged in the front-back direction. Each linear guide rail 2 extends in the left-right direction. The support slide 15 and the drive slide 14 are slidably engaged with the two linear guide rails 2 through guide rail sliders 3. In this embodiment, the cross-sectional shape of the linear guide rail 2 is arc-shaped, and the groove shape of the guide rail slider 3 matches the shape of the linear guide rail 2. Limiting retaining rings 4 are slidably mounted on both ends of the linear guide rail 2. Lateral locking screws 5 are screwed into the lateral screw holes of the limiting retaining rings 4 and pressed against the linear guide rail 2 to achieve the locking installation of the limiting retaining rings 4 and the linear guide rail 2. This structural design allows for the removal of the limiting rings 4 by loosening the lateral locking screws 5, facilitating the installation of the support slide 15 and drive slide 14 on the linear guide rail 2. After installing the support slide 15 and drive slide 14, the limiting rings 4 are then fitted onto both ends of the linear guide rail 2 and the lateral locking screws 5 are tightened. The limiting rings 4 limit the ends of the support slide 15 and drive slide 14, preventing them from detaching from the linear guide rail 2. Furthermore, by adjusting the position of the limiting rings 4 on the linear guide rail 2, the sliding stroke of the support slide 15 and drive slide 14 can be adjusted to accommodate different stroke requirements.

[0034] The support slide 15 and the drive slide 14 are respectively defined as the inner side facing each other and the outer side facing away from each other. The inner side of the support slide 15 and the inner side of the drive slide 14 are respectively provided with multiple sets of mounting positions arranged in the front-back direction. A vibration damper 20 is detachably installed between the corresponding mounting positions on the inner sides of the support slide 15 and the drive slide 14. One end of the vibration damper 20 is detachably installed on the mounting position on the inner side of the drive slide 14, and the other end of the vibration damper 20 is detachably installed on the mounting position on the inner side of the support slide 15 through a tension / compression sensor 17. An acceleration sensor 16 is provided on the outer side of the support slide 15. A displacement sensor 7 is provided on the platform 1 at the position located on the outer side of the drive slide 14. The movable end of the displacement sensor 7 is connected to the mounting hole 24 on the outer side of the drive slide 14. The acceleration during vibration is measured by the acceleration sensor 16; the tension and compression values ​​of the corresponding damper 20 are measured by the tension and compression sensor 17, thereby obtaining the magnitude of the vibration force; the linear position of the drive slide 14 is measured by the displacement sensor 7, thereby obtaining the actual position of the damper 20.

[0035] In this embodiment, the vibration damper 20 is detachably mounted on two tooling fixtures 19 at both ends. The tooling fixture 19 is a U-shaped frame with an inward opening. Threaded holes are opened on the top and bottom plates of the U-shaped frame. Lifting rings 25 are provided at both ends of the vibration damper 20. The vibration damper 20 includes a vibration damper 20 body and a piston rod 26. Lifting rings 25 are provided at the ends of the vibration damper 20 body and the piston rod 26, respectively. The lifting rings 25 at the ends of the vibration damper 20 extend into the opening of the U-shaped frame. Two pointed screws 21 are screwed into the threaded holes of the top and bottom plates of the U-shaped frame and extend into the inner holes of the lifting rings 25 at the ends of the vibration damper 20, thereby achieving a detachable connection between the vibration damper 20 and the tooling fixture 19. The tooling fixture 19 at one end of the vibration damper 20 is detachably mounted on the mounting position inside the drive slide 14. The tooling fixture 19 at the other end of the vibration damper 20 is detachably connected to one end of the tension / compression sensor 17, and the other end of the tension / compression sensor 17 is detachably connected to the mounting position inside the support slide 15. The mounting position inside the support slide 15 is a first mounting hole 28, and the mounting position inside the drive slide 14 is a second mounting hole 29. The tension / compression sensor 17 and the first mounting hole 28 inside the support slide 15, as well as the tooling fixture 19 and the second mounting hole 29 inside the drive slide 14, are detachably connected by screws. The tension / compression sensor 17 and the tooling fixture 19 can also be detachably connected by screws. The tension / compression sensor 17 can be an S-type tension / compression sensor 17.

[0036] The locking structure allows for locking the left and right positions of the support slide 15 relative to the table surface 1. In this embodiment, the locking structure includes several locking screws 22, locking portions on the front and rear sides of the support slide 15, and locking hole groups on the front and rear sides of the table surface 1. The two sets of locking hole groups correspond to the locking portions on the front and rear sides of the support slide 15. Each set of locking hole groups includes multiple locking holes 27 spaced apart along the left and right direction of the table surface 1. By passing the locking screws 22 sequentially through the holes in the locking portions of the support slide 15 and the locking holes 27 on the table surface 1, and screwing on the nuts 23, the relative position of the support slide 15 and the table surface 1 is locked. By selecting locking holes 27 at different positions on the table surface 1, the support slide 15 can be locked at different positions on the table surface 1.

[0037] The drive mechanism includes a motor 9 and a transmission mechanism. The output end of the motor 9 is connected to the outside of the drive slide 14 through the transmission mechanism. The motor 9 and the transmission mechanism drive the drive slide 14 to slide left and right along the table surface 1. The transmission mechanism includes an electric cylinder 8 and a transmission belt 13. The output end of the motor 9 is provided with a first transmission wheel 11, and the input end of the electric cylinder 8 is provided with a second transmission wheel 12. The first transmission wheel 11 and the second transmission wheel 12 are connected by the transmission belt 13. The output end of the electric cylinder 8 is connected to the outside of the drive slide 14.

[0038] Both the drive mechanism and the displacement sensor 7 are mounted on the drive mechanism base 6. The displacement sensor 7 can be mounted on the drive mechanism base 6 by screw connection. The drive mechanism base 6 is fixedly mounted on the platform 1. The platform 1 can be provided with several threaded mounting holes. The drive mechanism base 6 can be mounted to the threaded mounting holes on the platform 1 by screw connection. The motor 9 and the electric cylinder 8 are respectively mounted on the drive mechanism base 6. The drive mechanism base 6 is equipped with a reduction gearbox 10. The first transmission wheel 11, the second transmission wheel 12, and the transmission belt 13 are respectively installed in the reduction gearbox 10.

[0039] The drive mechanism is used to provide the vibration force required for the test. Its drive form is as follows: current is input to motor 9, the output end of motor 9 drives the first transmission wheel 11 to rotate, the first transmission wheel 11 drives the second transmission wheel 12 to rotate through the transmission belt 13, the second transmission wheel 12 drives the input end of electric cylinder 8 to rotate, the input end of electric cylinder 8 drives the output end of electric cylinder 8 to move linearly, the output end of electric cylinder 8 drives the drive slide 14 to move linearly along the two linear guide rails 2, the drive slide 14 drives the vibration damper 20 to move linearly, and by controlling the input current of motor 9, various vibration waveforms can be applied to the vibration damper 20.

[0040] Depending on the test object and test content, the horizontal multi-channel vibration test bench of this embodiment can work in three different test modes. The switching between the three test modes can be achieved by changing the connection method between the support slide 15 and the table 1, as well as the number of vibration dampers 20 installed.

[0041] The first test mode is the mechanical characteristic test mode for vibration damper 20, see [link / reference] Figure 9 In this test mode, the support mechanism is arranged as follows: After sliding the support slide 15 along the linear guide 2 to the appropriate position, the position of the support slide 15 is locked by locking screws 22 and nuts 23. A tension / compression sensor 17 is installed at the center of the mounting position inside the support slide 15, and a tooling fixture 19 is installed inside the tension / compression sensor 17. A tooling fixture 19 is also installed at the center of the mounting position inside the drive slide 14. The two tooling fixtures 19 are arranged facing each other from left to right. The two ends of the vibration damper 20 are then installed on the left and right tooling fixtures 19 respectively.

[0042] During the test of the mechanical characteristics of the vibration damper 20, current is input to the motor 9, causing the drive mechanism to drive the drive slide 14 and the vibration damper 20 to reciprocate. At the same time, the tension and compression signals of the vibration damper 20 are collected by the tension and compression sensor 17, and the displacement signal of the vibration damper 20 is collected by the displacement sensor 7, thereby obtaining the force and displacement relationship data of the vibration damper 20.

[0043] The second test mode is the fatigue durability test mode for the vibration damper 20. In this test mode, one or more vibration dampers 20 can be installed between the inner side of the support slide 15 and the inner side of the drive slide 14. When one vibration damper 20 is installed, the arrangement of the support mechanism is the same as that in the first test mode; when several vibration dampers 20 are installed, the arrangement of the support mechanism differs from that in the first test mode in that the several vibration dampers 20 are arranged symmetrically along the front and back.

[0044] In this test mode, various arrangement methods can be formed depending on the number of vibration dampers 20. See [link / reference] Figures 10 to 12 The diagrams show three different arrangements of vibration dampers 20: two, three, and four.

[0045] During the fatigue durability test of the vibration damper 20, the sensors do not need to work. Current is input to the motor 9 to make the drive mechanism drive the drive slide 14 and the vibration damper 20 to perform more than 100,000 reciprocating vibrations to check whether the vibration damper 20 has oil leakage or damage.

[0046] The third test mode is the single-degree-of-freedom suspension vibration test mode, see [link / reference] Figure 13In this test mode, the arrangement of the support mechanism differs from that in the first test mode in that the support slide 15 is in an unlocked state, and a counterweight 18 needs to be placed on the support slide 15. The unlocking process of the support slide 15 is as follows: remove the nut 23 and the locking screw 22 to release the lock on the support slide 15, so that the support slide 15 can slide freely along the linear guide rail 2.

[0047] During the single-degree-of-freedom suspension vibration test, current is input to motor 9, causing the drive mechanism to drive the drive slide 14, damper 20, and support slide 15 to reciprocate. Simultaneously, tension and compression signals of the damper 20 are collected by tension / compression sensor 17, displacement signals of the damper 20 are collected by displacement sensor 7, and acceleration signals are collected by acceleration sensor 16, thus obtaining the relationship data between force, displacement, and acceleration of the single-degree-of-freedom suspension system.

[0048] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A horizontal multi-channel vibration test bench, characterized in that: Includes a tabletop (1), on which a support mechanism and a drive mechanism are installed; The support mechanism includes a support slide (15) and a drive slide (14) slidably mounted on the platform (1). The support slide (15) and drive slide (14) are arranged in the left-right direction and can only slide in the left-right direction relative to the platform (1). The left-right position of the support slide (15) relative to the platform (1) can be locked by a locking structure. Let the side opposite to the support slide (15) and the side opposite to the drive slide (14) be the inner side and the side opposite to each other be the outer side. The inner side of the support slide (15) and the inner side of the drive slide (14) are respectively provided with multiple sets of mounting positions arranged in the front-back direction. A damper (20) is detachably installed between the corresponding mounting positions on the inner side of the slide (15) and the drive slide (14). One end of the damper (20) is detachably installed on the mounting position on the inner side of the drive slide (14), and the other end of the damper (20) is detachably installed on the mounting position on the inner side of the support slide (15) through a tension and compression sensor (17). An acceleration sensor (16) is provided on the outer side of the support slide (15). A displacement sensor (7) is provided on the table (1) at the position on the outer side of the drive slide (14). The movable end of the displacement sensor (7) is connected to the outer side of the drive slide (14). The driving mechanism includes a motor (9) and a transmission mechanism. The output end of the motor (9) is connected to the outside of the drive slide (14) through the transmission mechanism. The drive slide (14) is driven to slide left and right along the table surface (1) by the motor (9) and the transmission mechanism.

2. The horizontal multi-channel vibration test bench as described in claim 1, characterized in that: The vibration damper (20) is detachably mounted on two tooling fixtures (19) at both ends. The tooling fixture (19) at one end of the vibration damper (20) is detachably mounted on the mounting position inside the drive slide (14). The tooling fixture (19) at the other end of the vibration damper (20) is detachably connected to one end of the tension and compression sensor (17). The other end of the tension and compression sensor (17) is detachably connected to the mounting position inside the support slide (15).

3. The horizontal multi-channel vibration test bench as described in claim 2, characterized in that: The mounting position inside the support slide (15) is the first mounting hole (28), and the mounting position inside the drive slide (14) is the second mounting hole (29). The tension and compression sensor (17) is connected to the first mounting hole (28) inside the support slide (15), and the tooling fixture (19) is connected to the second mounting hole (29) inside the drive slide (14) by screws.

4. A horizontal multi-channel vibration test bench as described in claim 2, characterized in that: The tooling fixture (19) is a U-shaped frame with the opening facing inward. The top plate and bottom plate of the U-shaped frame are respectively provided with threaded holes. The vibration damper (20) is provided with lifting rings (25) at both ends. The lifting rings (25) at the end of the vibration damper (20) extend into the opening of the U-shaped frame. The upper and lower pointed screws (21) are respectively screwed into the threaded holes of the top plate and bottom plate of the U-shaped frame and extend into the inner hole of the lifting rings (25) at the end of the vibration damper (20), so as to realize the detachable connection between the vibration damper (20) and the tooling fixture (19).

5. A horizontal multi-channel vibration test bench as described in claim 1, characterized in that: The locking structure includes several locking screws (22), the front and rear sides of the support slide (15) are respectively provided with locking parts, and the front and rear sides of the table (1) are respectively provided with locking hole groups. The front and rear locking hole groups correspond to the locking parts on the front and rear sides of the support slide (15). Each locking hole group includes multiple locking holes (27) arranged at intervals along the left and right direction of the table (1). The locking screws (22) pass through the through holes of the locking parts of the support slide (15) and the locking holes (27) on the table (1) in sequence and are screwed on with nuts (23) to lock the relative position of the support slide (15) and the table (1).

6. The horizontal multi-channel vibration test bench as described in claim 1, characterized in that: The transmission mechanism includes an electric cylinder (8) and a transmission belt (13). The output end of the motor (9) is provided with a first transmission wheel (11), and the input end of the electric cylinder (8) is provided with a second transmission wheel (12). The first transmission wheel (11) and the second transmission wheel (12) are connected by the transmission belt (13). The output end of the electric cylinder (8) is connected to the outside of the drive slide (14).

7. A horizontal multi-channel vibration test bench as described in claim 6, characterized in that: The drive mechanism and displacement sensor (7) are both mounted on the drive mechanism base (6). The drive mechanism base (6) is fixedly mounted on the table (1). The motor (9) and electric cylinder (8) are respectively mounted on the drive mechanism base (6). A reduction gearbox (10) is mounted on the drive mechanism base (6). The first transmission wheel (11), the second transmission wheel (12) and the transmission belt (13) are respectively mounted inside the reduction gearbox (10).

8. A horizontal multi-channel vibration test bench as described in claim 1, characterized in that: The platform (1) is provided with two linear guide rails (2) arranged in front and behind. Each linear guide rail (2) extends in the left and right direction. The support slide (15) and the drive slide (14) are respectively slidably engaged with the two linear guide rails (2) through the guide rail slider (3).

9. A horizontal multi-channel vibration test bench as described in claim 8, characterized in that: The linear guide (2) has a cross-sectional shape of an arc. The groove shape of the guide slider (3) matches the shape of the linear guide (2). Limiting rings (4) are slidably fitted at both ends of the linear guide (2). The limiting rings (4) are screwed into the lateral screw holes of the limiting rings (4) by the lateral locking screws (5) and pressed against the linear guide (2) to achieve the locking installation of the limiting rings (4) and the linear guide (2).

Images