Inclination test platform

Abstract

The invention provides an inclination test platform. The inclination test platform comprises a fixed base, a rotary support, a moving platform and a driving assembly, the rotating support is located between the fixed base and the moving platform, the rotating support is connected with the top of the fixed base and the bottom of the moving platform, and the rotating support is used for supporting the moving platform; the driving assembly is located on the side, facing the fixed base, of the moving platform and connected with the bottom of the moving platform, and the driving assembly is used for driving the moving platform to incline relative to the fixed base. The accuracy of the test data of the to-be-tested device can be improved.

Description

Technical Field

[0001] The present invention belongs to the field of mechanical design, and in particular relates to a tilt test platform. Background Art

[0002] Since the marine environment is very complex, it is often necessary to conduct tilt tests on the ship's supporting equipment during ship production tests to detect the environmental adaptability of the ship's supporting equipment.

[0003] In the related art, when the inclination test is carried out on the supporting equipment of the ship, the scaled prototype mode is generally used for testing. The so-called scaled prototype mode refers to making a sample that is proportionally reduced to the supporting equipment, and then placing the sample on the inclination test platform for testing. The inclination test platform includes a motion platform and a drive assembly located at the bottom of the motion platform. The drive assembly is used to tilt the motion platform and support the tilted motion platform at the same time, so that the motion platform can remain stable when tilting.

[0004] However, due to the large difference between the sample and the device to be tested, the measured data has a large data error. If the supporting device is directly placed on the motion platform for the tilt test, due to the large size and heavy weight of the supporting device, the weight of the supporting device will fall completely on the drive component, making the drive component unable to work normally and making the test impossible. Summary of the invention

[0005] The embodiment of the present disclosure provides a tilt test platform, which can improve the accuracy of test data obtained during the tilt test of the device to be tested. The technical solution is as follows:

[0006] An embodiment of the present disclosure provides a tilt test platform, which includes a fixed base, a rotating support, a moving platform and a driving assembly; the rotating support is located between the fixed base and the moving platform, and the rotating support is respectively connected to the top of the fixed base and the bottom of the moving platform, and the rotating support is used to support the moving platform; the driving assembly is located on the side of the moving platform facing the fixed base, and is connected to the bottom of the moving platform, and the driving assembly is used to drive the moving platform to tilt relative to the fixed base.

[0007] In another embodiment of the present disclosure, the rotating support includes a first support body, a second support body and a spherical crown body, the top of the first support body is connected to the bottom of the motion platform, the bottom of the second support body is connected to the top of the fixed base, the spherical crown body is clamped between the bottom of the first support body and the top of the second support body, the circular bottom surface of the spherical crown body is in contact with the first support body, and the arc surface of the spherical crown body is in contact with the second support body.

[0008] In another embodiment of the present disclosure, the rotating support also includes a first wear-resistant plate and a second wear-resistant plate, the first wear-resistant plate is clamped between the circular bottom surface of the spherical crown body and the bottom of the first support body, and the second wear-resistant plate is clamped between the arc surface of the spherical crown body and the top of the second support body.

[0009] In yet another implementation of the present disclosure, the friction coefficients of the first wear-resistant plate and the second wear-resistant plate are both between 0.03 and 0.06.

[0010] In another implementation of the present disclosure, the first support body includes a support plate and a plurality of limit plates, wherein the plurality of limit plates are located along the support plate on a side of the support plate facing the second support body and are arranged around an outer edge of the support plate, and each of the plurality of limit plates is vertically connected to the support plate; and each of the limit plates is in contact with the outer periphery of the second support body.

[0011] In another implementation of the present disclosure, the outer peripheral wall of the second support body has an annular arc surface, and the arc surface has a symmetry plane edge that is perpendicular to the axis of the ring in which it is located, and each of the limit plates is tangent to the arc surface; when the motion platform is in a horizontal state, the symmetry plane is parallel to the support plate.

[0012] In another embodiment of the present disclosure, the driving assembly includes a plurality of driving units, and the plurality of driving units are spaced apart and located on the periphery of the rotating support; each of the plurality of driving units includes a driving cylinder, a cylinder support and a universal bearing, the fixed end of the driving cylinder is hinged to the cylinder support, and the telescopic end of the driving cylinder is connected to the motion platform via the universal bearing.

[0013] In yet another implementation of the present disclosure, the motion platform is a square plate-shaped structure; there are four driving units, and the four driving units are respectively located at four corners of the motion platform.

[0014] In another embodiment of the present disclosure, the tilt test platform further includes a control component, which includes a detector and a controller, wherein the detector is connected to the motion platform, and the detector is used to detect the tilt angle of the motion platform and the angular velocity during the tilting process, and the controller is connected to the detector and to the driving cylinder in each of the driving units, and the controller is used to control the extension and retraction of the driving cylinder according to the tilt angle detected by the detector and the angular velocity during the tilting process.

[0015] In another embodiment of the present disclosure, the control unit also includes a control system corresponding to the driving cylinder one by one; the control system includes a pump group, a first reversing valve, a servo valve, a relief valve and a second reversing valve, the oil outlet of the pump group is connected to the first oil port of the first reversing valve, the second oil port of the first reversing valve is connected to the oil inlet of the servo valve, the oil return port of the servo valve is connected to the oil tank, the first working oil port of the servo valve is connected to the rodless chamber of the driving cylinder corresponding to the control system, the second working oil port of the servo valve is connected to the rod chamber of the driving cylinder corresponding to the control system, and the servo valve is electrically connected to the controller; the oil inlet of the relief valve is respectively connected to the oil outlet of the pump group and the first oil port of the first reversing valve, the oil return port of the relief valve is connected to the oil tank, the control oil port of the relief valve is connected to its own oil inlet, the spring chamber of the relief valve is connected to the first oil port of the second reversing valve, and the second oil port of the second reversing valve is connected to the oil tank.

[0016] The technical solution provided by the embodiments of the present disclosure brings the following beneficial effects:

[0017] When the tilt test platform provided by the embodiment of the present disclosure is used to test the device to be tested, since the tilt test platform includes a fixed base, the tilt test platform can be fixed in the test site through the fixed base. At the same time, the tilt test platform also includes a rotating support and a moving platform, so the moving platform can be rotatably connected to the fixed base through the rotating support so that the moving platform can be tilted relative to the fixed base. At the same time, during the test, the device to be tested can be connected to the moving platform, so that the device to be tested can be tilted along with the moving platform to meet the test conditions.

[0018] Because the tilt test platform also includes a driving component, and the driving component is used to drive the moving platform to tilt relative to the fixed base, when conducting the test, the moving platform can be tilted relative to the fixed base by controlling the driving component, and the device to be tested connected to the moving platform can also be tilted synchronously to meet the test requirements.

[0019] That is to say, the tilt test platform provided by the embodiment of the present disclosure tests the device to be tested itself through the motion platform. Moreover, during the test, the motion platform connected to the device to be tested can be supported by the rotating support, and the rotating support can bear the load generated by the motion platform during the movement. Therefore, it is possible to avoid using the scaled prototype mode of the related technology to conduct the test, and directly test the device itself, thereby greatly improving the accuracy of the test data during the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 is a structural schematic diagram of a tilt test platform provided by an embodiment of the present disclosure;

[0022] Figure 2 yes Figure 1 Structural schematic diagram of the middle rotating support;

[0023] Figure 3 yes Figure 1 A top view of

[0024] Figure 4 yes Figure 1 Schematic diagram of the control principle of the control unit.

[0025] The symbols in the figure mean the following:

[0026] 1.Fix the base;

[0027] 2. Rotating support; 21. First support body; 211. Support plate; 212. Limiting plate; 22. Second support body; 221. External flange; 23. Spherical crown body; 24. First wear-resistant plate; 25. Second wear-resistant plate; 240. First mounting groove; 220. Spherical groove; 2201. Second mounting groove; 2202. Arc surface; 221. External flange;

[0028] 3. Sports platform;

[0029] 4. Driving assembly; 41. Driving cylinder; 411. Displacement sensor; 42. Cylinder support; 43. Universal bearing;

[0030] 5. Control component; 51. Detector; 52. Controller; 53. Control unit; 531. Pump group; 5311. Motor; 5312. Main pump; 532. First reversing valve; 533. Servo valve; 534. Overflow valve; 535. Second reversing valve; 536. Check valve; 537. Pressure sensor. DETAILED DESCRIPTION

[0031] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0032] The present disclosure provides a tilt test platform. Figure 1As shown, the tilt test platform includes a fixed base 1, a rotating support 2, a motion platform 3 and a driving assembly 4.

[0033] The rotating support 2 is located between the fixed base 1 and the moving platform 3 , and the rotating support 2 is connected to the top of the fixed base 1 and the bottom of the moving platform 3 respectively, and the rotating support 2 is used to support the moving platform 3 .

[0034] The driving assembly 4 is located on a side of the motion platform 3 facing the fixed base 1 and is connected to the bottom of the motion platform 3 . The driving assembly 4 is used to drive the motion platform 3 to tilt relative to the fixed base 1 .

[0035] When the tilt test platform provided by the embodiment of the present disclosure is used to test the device to be tested, since the tilt test platform includes a fixed base 1, the tilt test platform can be fixed in the test site through the fixed base 1. At the same time, the tilt test platform also includes a rotating support 2 and a moving platform 3, so the moving platform 3 can be rotatably connected to the fixed base 1 through the rotating support 2, so that the moving platform 3 can be tilted relative to the fixed base 1. At the same time, during the test, the device to be tested can be connected to the moving platform 3, so that the device to be tested can be tilted along with the moving platform 3 to meet the test conditions.

[0036] Because the tilt test platform also includes a driving component 4, and the driving component 4 is used to drive the motion platform 3 to tilt relative to the fixed base 1, when conducting the test, by controlling the driving component 4, the motion platform 3 can be tilted relative to the fixed base 1, and then the device to be tested connected to the motion platform 3 can also be tilted synchronously to meet the test requirements.

[0037] That is to say, the tilt test platform provided by the embodiment of the present disclosure tests the device to be tested itself through the motion platform 3. Moreover, during the test, the motion platform 3 connected to the device to be tested can be supported by the rotating support 2, and the rotating support 2 can withstand the load generated by the motion platform 3 during the movement process. Therefore, it is possible to avoid using the scaled prototype mode in the related art to conduct the test, and directly test the device itself, thereby greatly improving the accuracy of the test data during the test.

[0038] Furthermore, during the test, the motion angle requirement of the motion platform 3 during the test is realized through the driving component 4, so that the motion platform 3 can be at different angles required for the test, and the test data in different tilt processes can be obtained.

[0039] Figure 2 yes Figure 1 The structural diagram of the rotating support Figure 2Optionally, the rotating support 2 includes a first support body 21, a second support body 22 and a spherical crown body 23, the top of the first support body 21 is connected to the bottom of the motion platform 3, the bottom of the second support body 22 is connected to the top of the fixed base 1, the spherical crown body 23 is clamped between the bottom of the first support body 21 and the top of the second support body 22, the circular bottom surface of the spherical crown body 23 contacts the first support body 21, and the arc surface of the spherical crown body 23 contacts the second support body 22.

[0040] In the above implementation, the rotating support 2 is configured as a first support body 21, a second support body 22 and a spherical crown body 23, and can be fixed together with the motion platform 3 through the first support body 21, and fixed together with the fixed base 1 through the second support body 22, and the first support body 21 and the second support body 22 are rotatably connected through the spherical crown body 23.

[0041] That is to say, since the first support body 21 is fixed together with the moving platform 3, the second support body 22 is fixed together with the fixed base 1, and the spherical crown body 23 is clamped between the first support body 21 and the second support body 22, the movable connection between the first support body 21 and the second support body 22 can be achieved through the arc surface of the spherical crown body 23, thereby enabling the moving platform 3 and the fixed base 1 to be movably connected.

[0042] In other examples, the rotating support 2 may be other structures, for example, a spherical substructure formed by the first support body 21 and the second support body 22 through a hemisphere or the like.

[0043] Optionally, the rotating support 2 further includes a first wear-resistant plate 24 and a second wear-resistant plate 25 , wherein the first wear-resistant plate 24 is clamped between the circular bottom surface of the spherical crown 23 and the first support body 21 , and the second wear-resistant plate 25 is clamped between the arc surface of the spherical crown 23 and the second support body 22 .

[0044] In the above implementation, the first wear-resistant plate 24 is clamped between the circular bottom surface of the spherical crown 23 and the bottom of the first support body 21, and the friction between the spherical crown 23 and the first support body 21 can be increased by the first wear-resistant plate 24. The second wear-resistant plate 25 is clamped between the arc surface of the spherical crown 23 and the top of the second support body 22, and the friction between the spherical crown 23 and the second support body 22 can be increased by the second wear-resistant plate 25. In this way, after the motion platform 3 is tilted, the first wear-resistant plate 24 and the second wear-resistant plate 25 can be used to enable the rotating support 2 to stably support the motion platform 3, further reduce the support force of the drive assembly 4, and reduce the probability of deformation of the drive assembly 4.

[0045] In order to facilitate the installation of the first wear-resistant plate 24 and the second wear-resistant plate 25 , a first installation groove 240 is provided in the circular bottom surface of the spherical crown 23 . The first wear-resistant plate 24 is located in the first installation groove 240 and is adhered to the spherical crown 23 .

[0046] The top of the second support body 22 has a spherical groove 220, and the arc surface of the spherical crown body 23 is located in the spherical groove 220. The groove body of the spherical groove 220 is provided with a second installation groove 2201, and the second wear-resistant plate 25 is located in the second installation groove 2201, and the second wear-resistant plate 25 and the second support body 22 are pasted together.

[0047] Optionally, the first wear-resistant plate 24 and the second wear-resistant plate 25 are structural members made of the same material, and the friction coefficients are both within the range of 0.03 to 0.06. For example, the first wear-resistant plate 24 and the second wear-resistant plate 25 are both wear-resistant steel plates.

[0048] In the above implementation, the first wear-resistant plate 24 and the second wear-resistant plate 25 are made of the same material, which can be easily processed.

[0049] At the same time, setting the friction coefficient of the first wear-resistant plate 24 and the second wear-resistant plate 25 within the range of 0.03 to 0.06 can further increase the friction between the first support body 21 and the spherical crown body 23 and the friction between the second support body 22 and the spherical crown body 23, so that after the motion platform 3 is tilted, the rotating support 2 can stably support the motion platform 3 to reduce the driving force of the driving component 4.

[0050] Optionally, the first support body 21 includes a support plate 211 and a plurality of limiting plates 212, the plurality of limiting plates 212 are located along the support plate 211 on a side of the support plate 211 facing the second support body 22, and are arranged around the outer edge of the support plate 211, and each of the plurality of limiting plates 212 is vertically connected to the support plate 211. Each limiting plate 212 is in contact with the outer periphery of the second support body 22.

[0051] In the above implementation, the first support body 21 is configured as a support plate 211 and a plurality of limit plates 212, and can be fixedly connected to the motion platform 3 through the support plate 211. At the same time, a space is enclosed by the plurality of limit plates 212 and the support plate 211 to enclose the second support body 22, so that the spherical crown 23 can be stably clamped between the second support body 22 and the first support body 21, and will not be squeezed out from the first support body 21 and the second support body 22 after the motion platform 3 is tilted, thereby affecting the test process.

[0052] In this embodiment, the first support body 21 is an integrated structural member. The support plate 211 is a square plate, and there are four limit plates 212. The four limit plates 212 are respectively connected to the four sides of the support plate 211. A screw hole is provided at the connection between each limit plate 212 and the support plate 211, and a screw rod is inserted into the screw hole. The first support body 21 is detachably connected to the motion platform 3 by fasteners such as screws, nuts, and washers.

[0053] In other examples, the first support body 21 may also be other structures, such as a box-type structure, etc. The second support body 22 is located inside the first support body 21 .

[0054] Optionally, the outer peripheral wall of the second support body 22 has an annular arc surface 2202, and the arc surface 2202 is symmetrical along a plane perpendicular to the axis of the annular shape in which the arc surface 2202 is located ( Figure 2 In plane a), each limiting plate 212 is tangent to the arc surface 2202.

[0055] When the motion platform 3 is in a horizontal state, the symmetry plane is parallel to the support plate 211 , and the symmetry axis of the arc surface 2202 is parallel to the support plate 211 .

[0056] In the above implementation, an annular arc surface 2202 is set in the outer peripheral wall of the second support body 22, so that when the moving platform 3 moves, each limit plate 212 can always be tangential to and in contact with the outer periphery of the second support body 22 after following the movement of the moving platform 3, and will not separate from the second support body 22.

[0057] In this embodiment, the second support body 22 is a block structure. The bottom of the second support body 22 has an outer flange 221. The outer flange 221 is provided with a plurality of connection holes at intervals along its circumference. Fasteners such as screws and nuts are inserted into the connection holes to achieve a detachable connection with the fixed base 1.

[0058] See again Figure 1 Optionally, the driving assembly 4 includes a plurality of driving units, and the plurality of driving units are spaced apart and located on the periphery of the rotating support 2 .

[0059] Each of the multiple driving units includes a driving cylinder 41 , a cylinder support 42 and a universal bearing 43 . The fixed end of the driving cylinder 41 is hinged to the cylinder support 42 , and the telescopic end of the driving cylinder 41 is connected to the motion platform 3 via the universal bearing 43 .

[0060] In the above implementation, the driving cylinder 41 is used to drive the motion platform 3 to tilt and swing. The cylinder support 42 can make the driving cylinder 41 hinged in the test site. The universal bearing 43 is used to make the driving cylinder 41 and the motion platform 3 movably connected, so that the driving cylinder 41 will not be subjected to radial load when the motion platform 3 moves, thereby preventing the driving cylinder 41 from being damaged.

[0061] Figure 3 yes Figure 1 A top view of Figure 3 The motion platform 3 is a square plate structure. There are four drive units, which are respectively located at the four corners of the motion platform 3.

[0062] In the above implementation, the motion platform 3 is set as a square plate structure, which can simplify the structure of the motion platform 3 and make the motion platform 3 a symmetrical structure. When the motion platform 3 is driven to tilt by the driving cylinder 41, it is relatively simple.

[0063] Moreover, a driving unit is respectively arranged at each of the four corners of the motion platform 3, and the tilting movement of the motion platform 3 in different directions can be achieved by controlling one of the driving units each time.

[0064] Figure 4 yes Figure 1 Schematic diagram of the control principle of the control unit, combined with Figure 4 Optionally, the tilt test platform also includes a control component 5, which includes a detector 51 and a controller 52. The detector 51 is connected to the motion platform 3, and the detector 51 is used to detect the tilt angle of the motion platform 3 and the angular velocity during the tilting process. The controller 52 is connected to the detector 51 and is connected to the driving cylinder 41 in each driving unit. The controller 52 is used to control the extension and retraction of the driving cylinder 41 according to the tilt angle detected by the detector 51 and the angular velocity during the tilting process.

[0065] In the above implementation, the extension and retraction of the driving cylinder 41 can be automatically controlled by setting the control component 5. The control component 5 is set as a detector 51 and a controller 52, and the inclination angle of the motion platform 3 can be detected in real time by the detector 51. The controller 52 is used to automatically control the driving cylinders 41 in different driving units according to the inclination angle of the motion platform 3, so that the motion platform 3 can be in the inclination state required for the test.

[0066] In this embodiment, the detector 51 may be a gyroscope. The gyroscope is connected to the center of the motion platform 3. The tilt angle of the motion platform and the angular velocity during the tilt process can be monitored by the gyroscope. At the same time, the gyroscope is electrically connected to the controller 52, and the gyroscope feeds back the measured tilt angle and the angular velocity during the tilt process to the controller 52.

[0067] The controller 52 may be a host computer, an industrial computer, etc.

[0068] In this embodiment, in order to improve the control accuracy of the controller 52 on the telescopic stroke of each driving cylinder 41, a displacement sensor 411 is installed in each driving cylinder 41. The displacement sensor 411 is electrically connected to the controller 52. The displacement sensor 411 is used to detect the displacement of the connected driving cylinder 41 in real time, and transmit the detected displacement value to the controller 52, and the controller 52 controls the telescopic stroke of the driving cylinder 41 in real time according to the displacement value.

[0069] Optionally, the control assembly 5 further includes a control unit 53 corresponding to the driving cylinder 41. The control unit 53 includes a pump group 531, a first reversing valve 532, a servo valve 533, a relief valve 534 and a second reversing valve 535, the oil outlet of the pump group 531 is connected to the first oil port of the first reversing valve 532, the second oil port of the first reversing valve 532 is connected to the oil inlet of the servo valve 533, the oil return port of the servo valve 533 is connected to the oil tank, the first working oil port of the servo valve 533 is connected to the rodless chamber of the driving cylinder 41 corresponding to the control unit 53, the second working oil port of the servo valve 533 is connected to the rod chamber of the driving cylinder 41 corresponding to the control unit 53, and the servo valve 533 is electrically connected to the controller 52.

[0070] The oil inlet of the relief valve 534 is connected to the oil outlet of the pump group 531 and the first oil port of the first reversing valve 532 respectively, the oil return port of the relief valve 534 is connected to the oil tank, the control oil port of the relief valve 534 is connected to its own oil inlet, the spring chamber of the relief valve 534 is connected to the first oil port of the second reversing valve 535, and the second oil port of the second reversing valve 535 is connected to the oil tank.

[0071] In the above implementation, the control unit 53 is used to control the corresponding driving cylinders 41 so that each driving cylinder 41 can be extended and retracted without interfering with each other, thereby improving the movement accuracy of the driving cylinders 41 .

[0072] According to the motion angle requirement of the motion platform 3, the controller 52 decomposes the angle requirement into the motion direction and displacement requirement of each driving cylinder 41, and controls the opening degree, opening direction and size of the servo valve 533 in each control unit 53 according to the decomposition result, so that the motion direction and displacement of the driving cylinder 41 meet the decomposition result. At the same time, the displacement sensor detects the real-time displacement of the driving cylinder 41 in real time and feeds it back to the controller 52. The controller 52 adjusts the opening degree, direction and size of the servo valve 533 in real time to form a closed-loop control, so that the motion angle of the motion platform 3 meets the test requirements.

[0073] For example, when the test is being conducted, it is necessary to drive the extension of the oil cylinder 41, the controller 52 controls the valve core of the first reversing valve 532 to be in the left position, the first oil port of the first reversing valve 532 is connected to the second oil port, and the controller 52 controls the valve core of the servo valve 533 to be in the right position. The oil inlet of the servo valve 533 is connected to the first working oil port of the servo valve 533, and the oil return port of the servo valve 533 is connected to the second working oil port of the servo valve 533.

[0074] The pump group 531 pumps the high-pressure oil in the oil tank to the first reversing valve 532. The high-pressure oil enters the oil inlet P of the servo valve 533 after passing through the first reversing valve 532. The high-pressure oil passes through the servo valve 533 and enters the rodless chamber of the driving cylinder 41 through the first working oil port of the servo valve 533. The high-pressure oil drives the driving cylinder 41 to extend. The oil in the rod chamber of the driving cylinder 41 flows back to the oil return port of the servo valve 533 through the second working oil port of the servo valve 533, and finally flows back to the oil tank.

[0075] At the same time, when the driving cylinder 41 is extended, the displacement sensor connected to the driving cylinder 41 can detect the displacement of the driving cylinder 41 in real time, and feed back the detection result to the controller 52. The controller 52 adjusts the valve core position of the servo valve 533 in real time according to the result detected by the displacement sensor, so as to control the opening size of the servo valve 533, so that the displacement of the driving cylinder 41 meets the test requirements.

[0076] Moreover, the provision of the second reversing valve 535 and the relief valve 534 can prevent the pump group 531 from being overloaded, thus playing a protective role.

[0077] Optionally, the control unit 53 further includes a one-way valve 536, which is connected to the oil circuit between the pump group 531 and the first reversing valve 532. The oil inlet of the one-way valve 536 is respectively connected to the oil outlet of the pump group 531 and the oil inlet of the overflow valve 534. The oil outlet of the one-way valve 536 is connected to the first oil port of the first reversing valve 532.

[0078] In the above implementation, the one-way valve 536 is used to limit the direction in which the pump group 531 pumps out the high-pressure oil, preventing the oil flowing back from the servo valve 533 from flowing back into the pump group 531 and damaging the pump group 531 .

[0079] Optionally, the control unit 53 further includes a pressure sensor 537 , and the pressure sensor 537 is connected to the oil circuit between the oil outlet of the pump group 531 and the oil inlet of the one-way valve 536 .

[0080] The pressure sensor 537 is used to monitor the pressure of the high-pressure oil output by the pump group 531 in real time to prevent overloading.

[0081] The following briefly introduces the working process of the tilt test platform provided by the embodiment of the present disclosure:

[0082] First, during the test, the device to be tested is connected to the motion platform 3 .

[0083] Then, according to the test requirements, the required tilt angle and angular velocity of the motion platform 3 are decomposed into the extension and retraction speeds and displacement sizes of each driving cylinder 41 through the controller 52 .

[0084] Next, the controller 52 controls the opening degree, opening direction and size of the servo valve 533 in the control unit 53 corresponding to each driving cylinder 41, so that the extension speed and displacement of the driving cylinder 41 meet the decomposition result. At the same time, the displacement sensor 411 connected to the driving cylinder 41 detects the real-time displacement of the driving cylinder 41 in real time and feeds it back to the controller 52. The controller 52 adjusts the opening degree, direction and size of the servo valve 533 in real time to form a closed-loop control so that the motion platform 3 meets the test requirements.

[0085] The above description is only an optional embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A tilt test platform, characterized in that: The tilt test platform comprises a fixed base (1), a rotating support (2), a moving platform (3) and a driving assembly (4); The rotating support (2) is located between the fixed base (1) and the moving platform (3), and the rotating support (2) is connected to the top of the fixed base (1) and the bottom of the moving platform (3) respectively, and the rotating support (2) is used to support the moving platform (3); The driving component (4) is located on a side of the moving platform (3) facing the fixed base (1) and is connected to the bottom of the moving platform (3). The driving component (4) is used to drive the moving platform (3) to tilt relative to the fixed base (1).

2. The tilt test platform according to claim 1, characterized in that: The rotating support (2) comprises a first support body (21), a second support body (22) and a spherical crown body (23). The top of the first support body (21) is connected to the bottom of the moving platform (3), the bottom of the second support body (22) is connected to the top of the fixed base (1), the spherical crown body (23) is clamped between the bottom of the first support body (21) and the top of the second support body (22), the circular bottom surface of the spherical crown body (23) is in contact with the first support body (21), and the arc surface of the spherical crown body (23) is in contact with the second support body (22).

3. The tilt test platform according to claim 2, characterized in that: The rotating support (2) further comprises a first wear-resistant plate (24) and a second wear-resistant plate (25), wherein the first wear-resistant plate (24) is clamped between the circular bottom surface of the spherical crown (23) and the bottom of the first support body (21), and the second wear-resistant plate (25) is clamped between the arc surface of the spherical crown (23) and the top of the second support body (22).

4. The tilt test platform according to claim 3, characterized in that: The friction coefficients of the first wear-resistant plate (24) and the second wear-resistant plate (25) are both between 0.03 and 0.

06.

5. The tilt test platform according to claim 2, characterized in that: The first support body (21) comprises a support plate (211) and a plurality of limiting plates (212), wherein the plurality of limiting plates (212) are located on a side of the support plate (211) facing the second support body (22) and are arranged around an outer edge of the support plate (211), and each of the plurality of limiting plates (212) is vertically connected to the support plate (211); Each of the limiting plates (212) is in contact with the outer periphery of the second support body (22).

6. The tilt test platform according to claim 5, characterized in that: The outer peripheral wall of the second support body (22) has an annular arc surface (2202), the arc surface (2202) has a symmetry plane perpendicular to the axis of the ring in which it is located, and each of the limiting plates (212) is tangent to the arc surface (2202); When the motion platform (3) is in a horizontal state, the symmetry plane is parallel to the support plate (211).

7. The tilt test platform according to any one of claims 1 to 6, characterized in that: The driving assembly (4) comprises a plurality of driving units, and the plurality of driving units are spaced apart and located on the periphery of the rotating support (2); Each of the multiple drive units comprises a drive cylinder (41), a cylinder support (42) and a universal bearing (43); the fixed end of the drive cylinder (41) is hinged to the cylinder support (42), and the telescopic end of the drive cylinder (41) is connected to the motion platform (3) via the universal bearing (43).

8. The tilt test platform according to claim 7, characterized in that: The motion platform (3) is a square plate-shaped structure; There are four drive units, and the four drive units are respectively located at four corners of the motion platform (3).

9. The tilt test platform according to claim 7, characterized in that: The tilt test platform further comprises a control component (5), wherein the control component (5) comprises a detector (51) and a controller (52), wherein the detector (51) is connected to the motion platform (3), and the detector (51) is used to detect the tilt angle of the motion platform (3) and the angular velocity during the tilting process, and the controller (52) is connected to the detector (51) and is connected to the driving cylinder (41) in each of the driving units, and the controller (52) is used to control the extension and retraction of the driving cylinder (41) according to the tilt angle detected by the detector (51) and the angular velocity during the tilting process.

10. The tilt test platform according to claim 9, characterized in that: The control assembly (5) further comprises a control unit (53) corresponding one-to-one to the driving cylinder (41); The control unit (53) comprises a pump group (531), a first reversing valve (532), a servo valve (533), a relief valve (534) and a second reversing valve (535). The oil outlet of the pump group (531) is connected to the first oil port of the first reversing valve (532), the second oil port of the first reversing valve (532) is connected to the oil inlet of the servo valve (533), the oil return port of the servo valve (533) is connected to the oil tank, the first working oil port of the servo valve (533) is connected to the rodless chamber of the driving cylinder (41) corresponding to the control unit (53), and the second working oil port of the servo valve (533) is connected to the rod chamber of the driving cylinder (41) corresponding to the control unit (53); The oil inlet of the overflow valve (534) is respectively connected to the oil outlet of the pump group (531) and the first oil port of the first reversing valve (532); the oil return port of the overflow valve (534) is connected to the oil tank; the control oil port of the overflow valve (534) is connected to its own oil inlet; the spring chamber of the overflow valve (534) is connected to the first oil port of the second reversing valve (535); the second oil port of the second reversing valve (535) is connected to the oil tank; the servo valve (533), the first reversing valve (532) and the second reversing valve (535) are all electrically connected to the controller (52).

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