A rocking test platform

Abstract

The application provides a swing test platform, comprising a base, a support part arranged above the base, a main frame and a support plate movably connected in the main frame, wherein the main frame is movably connected with the base, a first swing device arranged between the base and the main frame, and a second swing device arranged between the main frame and the support plate. The scheme provided by the application improves the safety and accuracy of ship swing test.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of test equipment, in particular to a swing test platform. BACKGROUND

[0002] Current ship multi-source sensing equipment is widely used in various ships. Due to the inclination and swing of the ship during normal navigation, the sensor provider and third-party inspection and certification agencies need to effectively test and evaluate its use effect to determine whether it meets the requirements.

[0003] The existing evaluation scheme for sensors is mainly based on laboratory test evaluation and real ship installation and debugging evaluation. By building a fixed test platform in the laboratory, the test of multi-source sensing equipment is realized. The laboratory environment is subject to space and monotonous environment, which is difficult to simulate the shipboard environment and cannot achieve the expected effect. By installing multi-source sensing equipment on the real ship, the debugging and testing evaluation work is realized during the ship mooring and navigation test stage. The installation process of the real ship is complex, the test cost is high, and the risk is great. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a swing test platform to improve the safety and accuracy of ship swing test, while reducing the test cost and complexity.

[0005] To solve the above technical problems, the technical scheme of the present application is as follows:

[0006] A swing test platform, comprising:

[0007] a base;

[0008] a support part, the support part is arranged above the base, comprising a main frame and a support plate movably connected in the main frame; wherein the main frame is movably connected with the base;

[0009] a first swing device, the first swing device is arranged between the base and the main frame;

[0010] a second swing device, the second swing device is arranged between the main frame and the support plate.

[0011] Optionally, the first swing device is a first electric push rod; the second swing device is a second electric push rod;

[0012] Optionally, the first swing device comprises:

[0013] a first swing mechanism, one end of the first swing mechanism is movably connected with the base, and the other end is movably connected with the main frame.

[0014] Optionally, the first swing mechanism comprises:

[0015] a crank, a first end of the crank being movably connected with the base;

[0016] a connecting rod, a first end of the connecting rod being movably connected with a second end of the crank, and a second end of the connecting rod being movably connected with the main frame.

[0017] Optionally, the first swing mechanism comprises:

[0018] at least two first return springs, the at least two first return springs being symmetrically arranged at a gap between the base and the main frame, and a first end of each of the at least two first return springs being fixedly connected with one side of the base, and a second end of each of the at least two first return springs being fixedly connected with one side of the main frame.

[0019] a first hydraulic cylinder, one end of the first hydraulic cylinder being movably connected with the base, and the other end of the first hydraulic cylinder being movably connected with the support plate.

[0020] Optionally, the second swing device comprises:

[0021] a second swing mechanism, the second swing mechanism being arranged on the main frame, and one side of the second swing mechanism being movably connected with the support plate.

[0022] Optionally, the second swing mechanism comprises:

[0023] a first cam, the first cam being arranged on the main frame, and one end of the first cam being movably connected with the second surface of the support plate.

[0024] a second cam, the second cam being symmetrically arranged with the first cam on the main frame, and one end of the second cam being movably connected with the second surface of the support plate.

[0025] Optionally, the first cam is provided with a first support shaft, and the second cam is provided with a second support shaft.

[0026] Optionally, the second swing mechanism comprises:

[0027] at least two second return springs, the at least two second return springs being symmetrically arranged at a gap between the main frame and the support plate, and a first end of each of the at least two second return springs being fixedly connected with one side of the main frame, and a second end of each of the at least two second return springs being fixedly connected with one side of the support plate.

[0028] a second hydraulic cylinder, one end of the second hydraulic cylinder being movably connected with the base, and the other end of the second hydraulic cylinder being movably connected with the support plate.

[0029] Optionally, the base comprises a base plate, a first support rod, a second support rod, and a third support rod.

[0030] One end of the first support rod, the second support rod and the third support rod is perpendicular and fixed to the bottom plate;

[0031] The first support rod and the second support rod are the same length, and greater than the length of the third support rod.

[0032] Optionally, the first swing device is a first electric push rod; and the second swing device is a second electric push rod.

[0033] The first end of the first electric push rod is movably connected to the base, and the second end is movably connected to the main frame;

[0034] The first end of the second electric push rod is movably connected to the main frame, and the second end is movably connected to the support plate.

[0035] Optionally, the swing test platform further comprises at least one of the following:

[0036] At least one drive motor, at least one of the drive motors is electrically connected to the first swing device or the second swing device;

[0037] At least one sensor to be tested, at least one of the sensors to be tested is fixedly connected to the first surface of the support plate.

[0038] The above-mentioned scheme of the present application at least has the following beneficial effects:

[0039] The above-mentioned scheme of the present application provides a swing test platform, which comprises a base, a support part arranged above the base and comprising a main frame and a support plate movably connected in the main frame, wherein the main frame is movably connected to the base, a first swing device arranged between the base and the main frame, and a second swing device arranged between the main frame and the support plate. Through the arrangement of the base, the support part, and the first swing device and the second swing device, the accuracy and practicality of ship swing test evaluation are improved, the complexity of traditional real ship installation test sensor equipment is avoided, and the cost and risk of real ship are avoided, thereby realizing the high unification of practicality and economy of simulated ship swing test. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 is a side view of the swing test platform provided by the embodiment of the present application;

[0041] Figure 2 is a perspective view of the base structure provided by the embodiment of the present application;

[0042] Figure 3is a perspective view of a crank structure provided by an embodiment of the present application;

[0043] Figure 4 is a perspective view of a cam structure provided by an embodiment of the present application;

[0044] Figure 5 is a perspective view of a support plate structure provided by an embodiment of the present application;

[0045] Figure 6 is a perspective view of a connecting rod structure provided by an embodiment of the present application;

[0046] Figure 7 is a perspective view of a main frame structure provided by an embodiment of the present application;

[0047] Figure 8 is a perspective view of a first rocking device and a second rocking device both being electric push rods in a rocking test platform provided by an embodiment of the present application;

[0048] Figure 9 is Figure 8 a side view of a rocking test angle during a rocking test;

[0049] Figure 10 is Figure 8 a side view of another rocking test angle during a rocking test;

[0050] Figure 11 is Figure 8 a front view of a rocking test angle during a rocking test;

[0051] Figure 12 is Figure 8 a front view of another rocking test angle during a rocking test;

[0052] Figure 13 is a side view of a rocking test platform provided by an alternative embodiment of the present application;

[0053] Figure 14 is Figure 9 a left view of the rocking test platform;

[0054] Figure 15 is a front and back rocking test schematic view of a rocking test platform provided by an alternative embodiment of the present application;

[0055] Figure 16 is Figure 15 a first rocking angle test schematic view of the rocking test platform;

[0056] Figure 17 is Figure 15 a second rocking angle test schematic view of the rocking test platform;

[0057] Figure 18 is Figure 15Schematic diagram of the third swing angle test;

[0058] Figure 19 This is a schematic diagram of a left-right swing test of a swing platform provided by an optional embodiment of the present invention;

[0059] Figure 20 yes Figure 19 Schematic diagram of the first swing test angle;

[0060] Figure 21 yes Figure 19 Schematic diagram of the second swing test angle test;

[0061] Figure 22 It is a side view of the vehicle-mounted platform provided by an embodiment of the present invention.

[0062] Explanation of the accompanying numbers: 1. Base; 101. First support rod; 102. Second support rod; 103. Third support rod; 104. Bottom plate; 2. Crank; 21. First gear; 22. Connecting rod; 221. Second connecting hole; 31. First cam; 32. Second cam; 33. Second gear; 4. Connecting rod; 41. Third connecting shaft; 42. Third connecting hole; 5. Main frame; 51. First connecting hole; 52. First connecting shaft; 53. Fourth support rod; 54. Side frame; 6. Support plate; 61. First flat plate; 62. Second flat plate; 63. Third flat plate, 64. Second connecting shaft; 7. Sensor to be tested; 8. First electric push rod; 9. Second electric push rod; 10. First return spring; 11. First hydraulic cylinder; 12. Second return spring; 13. Second hydraulic cylinder; 14. Car head; 15. Carriage. DETAILED DESCRIPTION

[0063] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0064] like Figure 1 As shown, an embodiment of the present invention provides a swing test platform, comprising:

[0065] Base 1;

[0066] A support portion is provided above the base 1 and includes a main frame 5 and a support plate 6 movably connected to the main frame 5; wherein the main frame 5 is movably connected to the base 1;

[0067] a first swing device, which is disposed between the base 1 and the main frame 5;

[0068] A second swing device is arranged between the main frame 5 and the support plate 6.

[0069] In this embodiment, the base 1 serves as the main support structure of the entire swing platform, as shown in the figure. Figure 2 As shown in the figure, the base 1 can include a bottom plate 104, a first support rod 101, a second support rod 102, and a third support rod 103. One end of each of the first support rod 101, the second support rod 102, and the third support rod 103 is fixed vertically to the bottom plate 104 and forms a triangular relationship at the position of the bottom plate 104. The other end of each of the first support rod 101, the second support rod 102, and the third support rod 103 is provided with a connecting hole. The first support rod 101 and the second support rod 102 are symmetrically arranged on both sides of the bottom plate 104, and the length of the first support rod 101 and the second support rod 102 is the same and greater than the length of the third support rod 103. When performing a swing test, the bottom plate 104 of the base 1 is arranged horizontally on a load platform used for testing. The bottom plate 104, the first support rod 101, the second support rod 102, and the third support rod 103 can be integrally formed to facilitate production and manufacturing.

[0070] The support part is arranged above the base 1 and includes a main frame 5 and a support plate 6 movably connected in the main frame 5. Figure 7 As shown in the figure, the main frame 5 is provided with a fourth support rod 53, and the two ends of the fourth support rod 53 are fixedly connected with the two sides of the main frame 5, respectively, to ensure the stability of the entire main frame. The fourth support rod 53 and the main frame 5 can also be integrally formed. The fourth support rod 53 is provided with a through hole, and the two ends of the fourth support rod 53 are respectively provided with two support columns, and the ends of the two support columns are respectively provided with a first connecting hole 51. The two ends of the main frame 5 are also respectively provided with a first connecting shaft 52, and the main frame 5 and the base 1 are movably connected through the first connecting shaft 52, the connecting holes on the first support rod 101 and the second support rod 102.

[0071] As shown in the figure, Figure 6As shown, the support plate 6 can include: a first flat plate 61, a second flat plate 62, a third flat plate 63; the first flat plate 61 and the third flat plate 63 are arranged in parallel, and the two ends of the second flat plate 62 are respectively vertically and fixedly connected to the first flat plate 61 and the third flat plate 63; the two sides of the first flat plate 61 are provided with a second connecting shaft 64, the support plate 6 and the main frame 5 are movably connected through the first connecting hole 51 and the second connecting shaft 64, and the first flat plate 61 can be movably connected above the main frame 5 through the two support columns arranged on the main frame 5, and when the support plate 6 is movably connected with the main frame, the first connecting shaft 52 and the second connecting shaft 64 are perpendicular in space, and when the swing test is carried out, the first flat plate 61 is used for placing the to-be-tested sensor 7 required for the test;

[0072] The first swing device is arranged between the base 1 and the main frame 5, and when the swing test is carried out, the first swing device can control the main frame 5 and the support plate 6 to rotate around the first connecting shaft 52 in the plane where the z axis is located;

[0073] The second swing device is arranged between the main frame 5 and the support plate 6, and when the swing test is carried out, the second swing device can control the first flat plate 61 of the support plate 6 to rotate around the second connecting shaft 64 in the plane where the z axis is located;

[0074] Through the arrangement and cooperation of the base 1, the main frame 5 and the support plate 6, a fixed position can be provided for the to-be-tested sensor 7, the stability of the to-be-tested sensor 7 during the swing test is ensured, and the accuracy of the swing test result is improved; through the arrangement of the first swing device and the second swing device and the arrangement and cooperation of the first connecting shaft 52 and the second connecting shaft 64, periodic swing simulation in different directions of the entire swing test platform can be realized, the risk of real ship installation is avoided, the singleness of the test result caused by the space and environment in the laboratory environment is avoided, the safety of the test process and the accuracy of the test result are further improved; meanwhile, the entire swing platform is simple in installation and structure, the test cost is reduced, and the practicability and economy are highly unified.

[0075] In an optional embodiment of the present application, the swing test platform can further include at least one of the following:

[0076] At least one driving motor, and at least one driving motor is electrically connected with the first swing device or the second swing device;

[0077] At least one sensor 7 to be tested is fixedly connected to the first surface of the support plate 6.

[0078] In this embodiment, the at least one driving motor provides power for the first swing device or the second swing device to realize the simulation of the shaking environment; the driving motor can be connected with the first swing device or the second swing device through a transmission mechanism.

[0079] When the swing test is performed, the sensor 7 to be tested is arranged on the first flat plate 61 to collect corresponding data for analyzing the swing test result.

[0080] In an optional embodiment of the present application, the first swing device is a first electric push rod 8, and the second swing device is a second electric push rod 9.

[0081] The first end of the first electric push rod 8 is movably connected with the base 1, and the second end is movably connected with the main frame 5.

[0082] The first end of the second electric push rod 9 is movably connected with the main frame 5, and the second end is movably connected with the support plate 6.

[0083] As shown in Figure 8 In this embodiment, the first swing device and the second swing device can both be electric push rods; the first end of the first electric push rod 8 is movably connected with the base 1, and the second end is movably connected with the fourth support rod 53 on the main frame 5; the first end of the second electric push rod 9 is movably connected with the side frame 54 arranged on the main frame 5, and the second end is movably connected with the mounting hole formed on the support plate 6; here, the support plate 6 can be a support plate containing only the first flat plate;

[0084] The first electric push rod 8 and the second electric push rod 9 can also respectively support the main frame 5 and the support plate 6; the first electric push rod 8 and the second electric push rod 9 are respectively integrated with driving motors; the driving motors drive the extension and contraction of the first electric push rod 8 and the second electric push rod 9 to realize the left-right and front-back swing of the swing test device in the plane where the z-axis is located.

[0085] Specifically:

[0086] Front-back swing (achieved by driving the first electric push rod 8 by the driving motor): before the swing test, the first electric push rod 8 is preset to an initial position, and the main frame 5 maintains a vertical posture; when the driving motor is started, the first electric push rod 8 is driven to extend or contract to realize the front-back swing of the swing test device in the plane where the z-axis is located. Figure 9As shown, when the first electric push rod 8 starts to extend, the main frame 5 drives the support plate 6 to tilt backward, and the main frame 5 continuously tilts backward during the extension to the maximum stroke, and the tilt angle reaches 22.5° when the first electric push rod 8 reaches the maximum stroke; after the first electric push rod 8 reaches the maximum stroke, the driving motor reverses, the first electric push rod 8 starts to shorten downward, and the tilt angle of the main frame 5 decreases and gradually returns to the normal position during the shortening; when the main frame 5 reaches the preset starting position, the main frame 5 starts to tilt forward, and the tilt angle reaches 22.5° when the first electric push rod 8 reaches the minimum length, as shown in the figure. Figure 10 At this time, the driving motor reverses again, the first electric push rod 8 extends upward, and the main frame 5 starts to return to the normal position; when the first electric push rod 8 reaches the preset starting position, the main frame 5 returns to the normal position, and a cycle is completed.

[0087] Left-right swing (achieved by driving the second electric push rod 9 by the driving motor): Before the swing test, the second electric push rod 9 is preset to the starting position, and the support plate 6 is kept in the vertical position; when the driving motor is started, as shown in the figure, Figure 11 As shown, when the second electric push rod 9 starts to extend, the main frame 5 drives the support plate 6 to tilt left, and the support plate 6 continuously tilts left during the extension to the maximum stroke, and the tilt angle reaches 22.5° when the second electric push rod 9 reaches the maximum stroke; after the second electric push rod 9 reaches the maximum stroke, the driving motor reverses, the second electric push rod 9 starts to shorten downward, and the tilt angle of the support plate 6 decreases and gradually returns to the normal position during the shortening; when the support plate 6 reaches the preset starting position, the support plate 6 starts to tilt right, and the tilt angle reaches 22.5° when the second electric push rod 9 reaches the minimum length, as shown in the figure. Figure 12 At this time, the driving motor reverses again, the second electric push rod 9 extends upward, and the support plate 6 starts to return to the normal position; when the second electric push rod 9 reaches the preset starting position, the support plate 6 returns to the normal position, and a cycle is completed.

[0088] In an implementable example of the present application, the driving motor is further electrically connected with a motor controller; by the motor controller, the input current voltage of the DC motor in the first electric push rod 8 and the second electric push rod 9 can be changed, so that the speed and stroke of the first electric push rod 8 and the first electric push rod 9 are variable. In the swing test, the period and angle of the front and rear swing of the main body frame 5 and the left and right swing of the support plate 6 can be selected. By changing the period and angle of the swing platform, various situations of the ship or vehicle shaking in the actual scene can be accurately simulated, the risk of installing the real ship is avoided, and the singleness of the test results caused by the space and environment in the laboratory environment for testing the sensing device is avoided, further improving the safety of the test process and the accuracy of the test results.

[0089] In an optional embodiment of the present application, the first swing device can include:

[0090] A first swing mechanism, one end of the first swing mechanism is movably connected with the base 1, and the other end is movably connected with the main body frame 5;

[0091] In this embodiment, one end of the first swing mechanism is movably connected with the main body frame 5, and the other end is movably connected with the third support rod 103 on the base 1;

[0092] Further, the first swing mechanism includes:

[0093] A crank 2, a first end of the crank 2 is movably connected with the base 1;

[0094] A connecting rod 4, a first end of the connecting rod 4 is movably connected with a second end of the crank 2, and a second end of the connecting rod 4 is movably connected with the main body frame 5.

[0095] In this embodiment, as shown in the drawings, Figure 3 the crank 2 can include a first gear 21 (the first gear can also be replaced with a belt wheel), and a connecting rod 22 fixedly connected with the first gear 21; wherein the first gear 21 is fixedly connected with the third support rod 103 on the base 1, one end of the connecting rod 22 is provided with a second connecting hole 221, and is movably connected with the first end of the connecting rod 4 through the second connecting hole 221; the first gear 21 and the connecting rod 22 can be integrally formed;

[0096] As shown in the drawings, Figure 6 the first end of the connecting rod 4 is provided with a third connecting shaft 41 and is movably connected with the third connecting hole 221; the second end of the connecting rod 4 is provided with an arc-shaped third connecting hole 42, by providing the arc-shaped second end, the main body frame 5 is movably connected with the connecting rod 4, and the friction between the main body frame 5 and the connecting rod 4 can be reduced when the swing test is performed.​​​​​​​​​​

[0097] The third support rod 103 on the base 1, the crank 2, the connecting rod 4 and the main frame 5 form a crank rocker mechanism. When performing a swing test, the first gear 21 of the crank 2 can be connected to the drive motor through a transmission mechanism, and rotates around the third support rod 103 under the drive of the drive motor. The connecting rod 4 rotates in the same direction as the first gear 21 under the cooperation of the third connecting shaft 41 and the second connecting hole 221, and drives the main frame 5 to rotate back and forth around the first connecting shaft 52 in the plane where the z-axis is located.

[0098] like Figure 13 As shown, in an optional embodiment of the present invention, the first swing mechanism may include:

[0099] At least two first return springs 10; at least two first return springs 10 are symmetrically arranged at the connection gap between the base 1 and the main frame 5, and the first ends of the at least two first return springs 10 are fixedly connected to one side of the main frame 5, and the second ends are fixedly connected to one side of the base 1;

[0100] A first hydraulic cylinder 11 , one end of which is movably connected to the base 1 , and the other end of which is movably connected to the main frame 5 .

[0101] In this embodiment, at least two first return springs 10 are provided at the movable connection gap between the base 1 and the main frame 5, and the first ends of the two first return springs 10 are fixedly connected to one side of the main frame 5, and the second ends are fixedly connected to one side of the base 1;

[0102] A first piston rod is connected to the top of the first hydraulic cylinder 11, one end of the first hydraulic cylinder 11 is movably connected to the bottom plate 104 of the base 1, and the other end is movably connected to the main frame 5 through the first piston rod; before the swing test, at least two of the first return springs are in a naturally extended state; during the swing test, a hydraulic pump applies hydraulic pressure to the hydraulic cylinder 11 to extend the first piston rod and push the main frame 5 to rotate back and forth relative to the base 1 around the first connecting shaft 52 in the plane where the z-axis is located; further, the movement direction of the first piston rod can be changed by a pre-set three-position four-way reversing valve. When the piston rod is compressed, the main frame 5 is pulled to rotate back and forth relative to the base 1 around the first connecting shaft 52 in the plane where the z-axis is located; when the hydraulic cylinder 11 is not started or the piston rod fails, the first return springs 10 on both sides of the main frame 5 are stretched. Under the action of the elastic force of the first return springs 10, the main frame 5 drives the support plate 6 to return to a horizontal position;

[0103] The periodic rotation of the main frame 5 in the plane where the z axis is located can be controlled by periodically changing the movement direction of the first piston rod through the reversing valve, so that the main frame 5 and the support plate 6 swing forward and backward in the plane where the z axis is located around the first connecting shaft 52; when the hydraulic cylinder 11 is not opened or the piston rod fails, the main frame 5 drives the support plate 6 to return to the horizontal position under the elastic force of the first return spring 10, so as to accurately simulate the situation that the ship or vehicle swings in the actual scene, avoid the risk of installing the real ship, and avoid the singleness of the test results of the test of the sensing device in the laboratory environment due to the space and environment, further improve the safety of the test process and the accuracy of the test results.

[0104] In an optional embodiment of the present application, the second swing device can include:

[0105] The second swing mechanism is arranged on the main frame 5, and one side of the second swing mechanism is in movable contact with the support plate 6.

[0106] In this embodiment, the second swing mechanism is arranged on the main frame 5, and one side of the second swing mechanism is movably connected with the main frame, and the other side is in movable contact with the first plate 61 of the support plate 6.

[0107] Further, as shown in the figure, the second swing mechanism can include: Figure 4

[0108] The first cam 31 is arranged on the main frame 5, and one end is in movable contact with the second surface of the support plate 6.

[0109] The second cam 32 is symmetrically arranged on the main frame 5 with the first cam 31, and one end is in movable contact with the second surface of the support plate 6.

[0110] In this embodiment, the first cam 31 and the second cam 32 are symmetrically arranged on the main frame 5, the first cam 31 and the second cam 32 are connected through the second gear 33 (the second gear can also be replaced by a belt wheel), and the 33 passes through the through hole on the fourth support rod 53 of the main frame 5 and is movably connected with the main frame.

[0111] ​The first cam 31 and the second cam 32 are arranged to form a cam mechanism together with the main body frame 5 and the support plate 6, and in the process of testing the swing device, the first cam 31 and the second cam 32 are connected with the driving motor through a transmission mechanism, and the driving motor drives the first cam 31 and the second cam 32 to rotate; in the process of rotation, the long axis of the first cam 31 and the second cam 32 rotates alternately and pushes the first plate 61 to rotate periodically left and right in the plane where the z-axis is located in the main body frame 5 around the second connecting shaft 64; the rotation axis of the first cam 31 and the second cam 32 coincides with the axis of the first plate 61 rotating around the base 1;

[0112] By arranging the cam with long and short axes alternately, the situation that the ship or vehicle shakes in the actual scene is accurately simulated, the risk of installing the real ship is avoided, and the singleness of the test result caused by the space and environment in the laboratory environment is avoided. The safety of the test process and the accuracy of the test result are further improved.

[0113] As shown in the optional embodiment of the application, Figure 14 the second swing mechanism can include:

[0114] At least two second return springs 12; the at least two second return springs 12 are symmetrically arranged at the gap between the movable connection of the main body frame 5 and the support plate 6, and the first end of the at least two second return springs 12 is fixedly connected with one side of the main body frame 5, and the second end is fixedly connected with one side of the support plate 6.

[0115] A second hydraulic cylinder 13, one end of the second hydraulic cylinder 13 is fixedly connected with the base 1, and the other end is fixedly connected with the support plate 6.

[0116] In this embodiment, the at least two second return springs 12 are arranged at the gap between the movable connection of the main body frame 5 and the support plate 6, the first end of the two second return springs 12 is fixedly connected with one side of the main body frame 5, and the second end is fixedly connected with one side of the support plate 6, and here the support plate 6 can be a support plate containing only the first plate;

[0117] The upper part of the second hydraulic cylinder 13 is connected with a second piston rod, one end of the second hydraulic cylinder 13 is movably connected with the bottom plate 104 of the base 1, and the other end is movably connected with the support plate 6 through the second piston rod; before the swing test, at least two first return springs are in a natural stretching state; during the swing test, the second piston rod is elongated by the hydraulic pump to apply hydraulic pressure to the second hydraulic cylinder 13, and the support plate 6 is pushed to rotate around the first connecting shaft 52 in the plane of the z-axis relative to the main frame 5; further, the movement direction of the second piston rod can be changed through a pre-set three-position four-way reversing valve, when the second piston rod is compressed, the support plate 6 is pulled to rotate around the first connecting shaft 52 in the plane of the z-axis relative to the main frame 5; when the hydraulic cylinder 13 is not started or the piston rod fails, at this time, the support plate 6 is restored to the horizontal position under the elastic force of the second return spring 12, and the support plate 6 is left and right shaken around the first connecting shaft 52 in the plane of the z-axis, and the second return spring 12 on both sides of the support plate 6 is stretched;

[0118] The movement direction of the second piston rod can be controlled by periodically changing the movement direction of the second piston rod through the reversing valve, so that the support plate 6 is periodically rotated left and right in the plane of the z-axis; when the hydraulic cylinder 13 is not started or the piston rod fails, the support plate 6 is restored to the horizontal position under the elastic force of the second return spring 12, and the support plate 6 is left and right shaken around the second connecting shaft 64 in the plane of the z-axis, so as to accurately simulate the shaking of the ship or vehicle in the actual scene, avoid the risk of installing the real ship, and avoid the single test result of the test of the sensing device in the laboratory environment due to the space and environment, further improve the safety of the test process and the accuracy of the test result.

[0119] In an optional embodiment of the present application, the second swing mechanism can further include:

[0120] An eccentric disc fixedly connected with the main frame 5, a pin shaft is arranged on the eccentric disc, one end of the pin shaft is movably connected with the eccentric disc, and the other end is in contact with the support plate;

[0121] Here, the eccentric disc can be connected with the driving motor through a transmission mechanism; during the rocking test, the driving motor drives the eccentric disc to rotate through the transmission mechanism, and the pin shaft installed on the eccentric disc also rotates with the eccentric disc; since the other end of the pin shaft is sleeved on the cylinder at the bottom of the first flat plate 61, when the pin shaft rotates, the speed in the front-rear direction will make the pin shaft slide forward and backward on the first flat plate 61 without driving the first flat plate 61 to move, and the speed of the pin shaft in the left-right direction will drive the first flat plate 61 to swing left and right, thereby promoting the first flat plate 61 to periodically rotate left and right in the plane of the z-axis in the main frame 5 around the second connecting shaft 64.

[0122] The rocking test platform provided by the above-mentioned embodiments of the present application can fix the whole rocking test platform on the vehicle platform through the base 1 when performing the rocking simulation test.

[0123] Preferably, as shown in the drawings, the vehicle platform can include: Figure 22

[0124] Vehicle head 14: the vehicle head 14 includes a driving position and a co-driver position, wherein the driving position is responsible for operating the vehicle platform, and the co-driver position is used as a workstation for real-time monitoring of the data collected by the sensor to be tested on the rocking test platform.

[0125] Vehicle compartment 15: the upper part of the vehicle compartment 15 is used for fixing the rocking test platform, and the inside of the vehicle compartment 15 is used for installing the mobile power supply and server of the rocking test platform, etc., and the vehicle compartment 15 and the rocking test platform can be fixed through detachable bolts.

[0126] During the rocking simulation test, specifically:

[0127] 1) Experimental conditions

[0128] (1) The support plate 6 is inclined by 22.5° in each of the front, rear, left and right directions around the median line of the base plate 1, and the inclination lasts for 15 min;

[0129] (2) The rocking test is performed according to the inclination of 22.5° in the front-rear and left-right directions, and the time for moving from one position to another position is 10 s, and the test duration is not less than 15 min;

[0130] (3) The rocking period and amplitude can be changed according to the test requirements of the sensor to be tested 7, and the range of the changed amplitude can be set according to actual needs;

[0131] 2) Rocking platform structure, connection and matching relationship between each structure; ​

[0132] 1. Back and forth swing (taking 22.5° amplitude and 20s period as an example), that is, the first swing device controls the main frame 5 to rotate back and forth around the first connecting axis 52 in the plane where the z-axis is located; the back and forth swing is achieved by the drive motor driving the crank 2, and the rotation direction of the crank 2 is set to be counterclockwise;

[0133] like Figure 15 As shown, when the driving motor drives the crank 2 to rotate to an angle of 14° with the horizontal plane, the main frame 5 and the support plate 6 are in the horizontal plane; Figure 16 As shown, when the crank 2 continues to rotate, the main frame 5 drives the support plate 6 to tilt forward. The main frame 5 continues to tilt forward during the period of 15° to 90°, and the tilt reaches 22.5° when the crank 22 rotates to 90°. Figure 17 As shown, when the crank 2 continues to rotate, during the period of 90° to 148°, the forward tilt angle of the main frame 5 decreases and gradually returns to the horizontal position when the angle reaches 148°; Figure 18 As shown, when the crank 2 rotates to 148°~270°, the main frame 5 begins to tilt backward, and when the angle reaches 270°, the backward tilt angle reaches 22.5°; when the crank 2 continues to rotate, the main frame 5 begins to return to the center, and when the crank 2 rotates to 374°, the main frame 5 returns to the center, completing a cycle.

[0134] 2. Left-right swing (taking 22.5° amplitude and 20s period as an example): that is, the second swing device can control the first plate 61 of the support plate 6 to rotate left and right around the second connecting axis 64 in the plane where the z-axis is located within the main frame 5. The left-right swing is achieved by the drive motor driving the first cam 31 and the second cam 32;

[0135] like Figure 19 As shown, when the long axes of the first cam 31 and the second cam 32 are one in front of the other, the support plate 6 is in a horizontal state; Figure 20 As shown, when the driving motor drives the first cam 31 to rotate 90° (the second cam 32 also rotates 90°), the long axis of the second cam 32 faces upward, pushing the support plate 6 to tilt to the left by 22.5°; when the first cam 31 rotates to 180° (the second cam 32 also rotates 180°), the long axes of the first cam 31 and the second cam 32 are also one in front of the other, and the support plate 6 returns to the horizontal position; Figure 21As shown, when the second cam 32 rotates 270° (the first cam 31 also rotates 270°), the long axis of the first cam 31 pushes the support plate 6 to tilt 22.5° to the right; when the first cam 31 and the second cam 32 rotate 360°, after a cycle, the support plate 6 returns to the Figure 19 the horizontal position shown.

[0136] The above embodiments of the present application, through the setting and cooperation of the base 1, the support plate 6 and the main frame 5, can provide a fixed position for the sensor to be tested, ensure the stability of the sensor to be tested during the swing test, and further improve the accuracy of the swing test results; through the crank 2, the connecting rod 4 and the main frame 5 and the third support rod 103 on the base 1 forming a crank rocker mechanism, during the swing test, the first gear 21 of the crank 2 can be connected with the driving motor through the transmission mechanism, and rotates around the third support rod 103 under the driving of the driving motor, the connecting rod 4 rotates in the same direction under the cooperation of the third connecting shaft 41 and the second connecting hole 221, and drives the main frame 5 and the support plate 6 to rotate forward and backward in the plane of the z-axis; through the first cam 31 and the second cam 32 in the second swing device, and cooperating with the main frame 5 and the support plate 6 to form a cam mechanism, during the swing test, the first cam 31 and the second cam 32 are connected with the driving motor through the transmission mechanism, the driving motor drives the first cam 31 and the second cam 32 to rotate, the long axis of the first cam 31 and the second cam 32 rotates alternately during the rotation, and pushes the first plate 61 of the support plate 6 to rotate periodically left and right in the plane of the z-axis in the main frame 5; further, periodic swing simulation in different directions of the whole swing test device can be realized, the risk of real ship installation is avoided, and the singleness of the test results caused by the space and environment in the laboratory environment is avoided, the safety of the test process and the accuracy of the test results are further improved; at the same time, the whole swing device is simple in installation and structure, the test cost is reduced, the practicability and economy are highly unified;

[0137] In addition, under the requirement of meeting the sea sailing speed, the driving motor is started to drive the swing platform to move, so as to simulate the periodic tilting swing environment in the shipborne test debugging process; at the same time, under the requirement of meeting the vehicle test speed, the vehicle can be driven to simulate the environment of the device to be tested in the vehicle test debugging process.

[0138] The above is the preferred embodiment of the present application, it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A swing test platform, characterized in that: include: Base (1); A support portion, the support portion being arranged above the base (1), comprising a main frame (5) and a support plate (6) movably connected to the main frame (5); wherein the main frame (5) is movably connected to the base (1); A first swing device, the first swing device being arranged between the base (1) and the main frame (5); a second swing device, the second swing device being arranged between the main frame (5) and the support plate (6); Wherein, the second swing device comprises: a second swing mechanism, the second swing mechanism is arranged on the main frame (5), and one side of the second swing mechanism is in active contact with the support plate (6); the second swing mechanism comprises: a first cam (31), the first cam (31) being arranged on the main frame (5), and having one end in movable contact with the second surface of the support plate (6); a second cam (32), the second cam (32) being symmetrically arranged on the main frame (5) with respect to the first cam (31), and having one end in movable contact with the second surface of the support plate (6); At least two second return springs (12); at least two second return springs (12) are symmetrically arranged at the gap between the main frame (5) and the support plate (6), and the first ends of at least two second return springs (12) are fixedly connected to one side of the main frame (5), and the second ends are fixedly connected to one side of the support plate (6); a second hydraulic cylinder (13), one end of the second hydraulic cylinder (13) is movably connected to the base (1), and the other end is movably connected to the support plate (6).

2. The swing test platform according to claim 1, characterized in that: The first swing device comprises: A first swing mechanism, wherein one end of the first swing mechanism is movably connected to the base (1), and the other end is movably connected to the main frame (5).

3. The swing test platform according to claim 2, characterized in that: The first swing mechanism includes: a crank (2), wherein a first end of the crank (2) is movably connected to the base (1); A connecting rod (4), wherein the first end of the connecting rod (4) is movably connected to the second end of the crank (2), and the second end of the connecting rod (4) is movably connected to the main frame (5).

4. The swing test platform according to claim 2, characterized in that: The first swing mechanism comprises: at least two first return springs (10); the at least two first return springs (10) are symmetrically arranged at the movable connection gap between the base (1) and the main frame (5), and the first ends of the at least two first return springs (10) are fixedly connected to one side of the base (1), and the second ends are fixedly connected to one side of the main frame (5); A first hydraulic cylinder (11), one end of the first hydraulic cylinder (11) is movably connected to the base (1), and the other end of the first hydraulic cylinder (11) is movably connected to the main frame (5).

5. The swing test platform according to claim 1, characterized in that: The base (1) comprises: a bottom plate (104), a first support rod (101), a second support rod (102), and a third support rod (103); One end of the first support rod (101), the second support rod (102), and the third support rod (103) are all vertical and fixed on the bottom plate (104); The first support rod (101) and the second support rod (102) have the same length, and are longer than the third support rod (103).

6. The swing test platform according to claim 1, characterized in that: Also include at least one of the following: at least one drive motor, wherein at least one of the drive motors is electrically connected to the first swing device or the second swing device; At least one sensor to be tested (7), at least one of the sensors to be tested (7) is fixedly connected to the first surface of the support plate (6).

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