Three-axis non-magnetic simulation turntable

Abstract

This application relates to the field of aerospace testing technology, and in particular to a three-axis non-magnetic simulation turntable. The three-axis non-magnetic simulation turntable includes a first drive assembly, a second drive assembly, and a third drive assembly. The first drive assembly includes a first rotating component, a first fixed component, a first rotating pipe, and a first fixed pipe. The first rotating component is provided with the first rotating pipe, and the first fixed component is provided with the first fixed pipe. The second drive assembly includes a second rotating component, a second fixed component, a second rotating pipe, and a second fixed pipe. The second rotating component is provided with the second rotating pipe, and the second fixed component is provided with the second fixed pipe. The third drive assembly is connected to the second rotating component and includes a third rotating component for connecting a test specimen. The first drive assembly drives the second drive assembly to rotate around the azimuth axis, the second drive assembly drives the third drive assembly to rotate around the pitch axis, and the third drive assembly drives the test specimen to rotate around the roll axis.

Description

Technical Field

[0001] This application relates to the field of aerospace testing technology, and in particular to a three-axis non-magnetic simulation turntable. Background Technology

[0002] To simulate the yaw, pitch, and roll motions of the product under test (DUT), a three-axis simulation turntable can simulate various attitudes and motion states of the DUT in space. However, the three-axis simulation turntable generates magnetic field interference around the DUT, which can affect the accuracy of the test results. Furthermore, during the operation of the three-axis simulation turntable, hydraulic circuits may become entangled or break due to the rotation of the frame. Summary of the Invention

[0003] The summary of this application introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This summary is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0004] According to a first aspect of this application, a three-axis non-magnetic simulation turntable is provided, the three-axis non-magnetic simulation turntable comprising:

[0005] The first drive assembly is made of non-magnetic material. The first drive assembly includes a first rotating member, a first fixed member, a first rotating pipe and a first fixed pipe. The first fixed member is fitted outside the first rotating member. The first rotating member can rotate relative to the first fixed member. The first rotating member is provided with the first rotating pipe. The first fixed member is provided with the first fixed pipe. The first rotating pipe and the first fixed pipe are connected. The first fixed pipe is connected to an external oil source.

[0006] The second driving component is made of non-magnetic material and is connected to the first rotating component. The second driving component includes a second rotating component, a second fixed component, a second rotating conduit, and a second fixed conduit. The second fixed component is fitted onto the outside of the second rotating component. The second rotating component is rotatable relative to the second fixed component. The second rotating component is provided with a second rotating conduit, and the second fixed component is provided with a second fixed conduit. The second rotating conduit and the second fixed conduit are connected, and the second fixed conduit is connected to the first rotating conduit.

[0007] A third driving component, the third driving component being made of a non-magnetic material, the third driving component being connected to the second rotating component, the second rotating conduit being connected to the third driving component, the third driving component including a third rotating component, the third rotating component being used to connect the test specimen;

[0008] The first drive component drives the second drive component to rotate around the azimuth axis, the second drive component drives the third drive component to rotate around the pitch axis, and the third drive component drives the test specimen to rotate around the roll axis.

[0009] According to the three-axis non-magnetic simulation turntable of this application, the three-axis non-magnetic simulation turntable includes a first drive assembly, a second drive assembly, and a third drive assembly. The first drive assembly is made of non-magnetic material and includes a first rotating component, a first fixed component, a first rotating pipe, and a first fixed pipe. The first fixed component is fitted outside the first rotating component, and the first rotating component is rotatable relative to the first fixed component. The first rotating component is provided with the first rotating pipe, and the first fixed component is provided with the first fixed pipe. The first rotating pipe and the first fixed pipe are connected, and the first fixed pipe is connected to an external oil source. The second drive assembly is made of non-magnetic material and is connected to the first rotating component. The second drive assembly includes a second rotating component, a second fixed component, and a second fixed component. The system includes a rotating conduit and a second fixed conduit. The second fixed conduit is fitted onto the outside of the second rotating conduit, allowing the second rotating conduit to rotate relative to the second fixed conduit. The second rotating conduit and the second fixed conduit are connected, and the second fixed conduit is connected to the first rotating conduit. A third drive assembly is made of non-magnetic material and is connected to the second rotating conduit. The second rotating conduit is connected to the third drive assembly. The third drive assembly includes a third rotating conduit used to connect to the test specimen. The first drive assembly drives the second drive assembly to rotate around the azimuth axis, the second drive assembly drives the third drive assembly to rotate around the pitch axis, and the third drive assembly drives the test specimen to rotate around the roll axis. Therefore, the first drive assembly, the second drive assembly, and the third drive assembly are all made of non-magnetic materials to avoid magnetic field interference and ensure the accuracy of the test results. The first drive assembly, the second drive assembly, and the third drive assembly can all drive the test specimen to rotate, so that the test specimen can simulate the movement of three degrees of freedom: yaw, pitch, and roll. The first rotating pipe, the first fixed pipe, the second fixed pipe, and the second rotating pipe will not get tangled or break due to rotation.

[0010] Optionally, the first drive assembly further includes a first drive member, which drives the first rotating member and the second drive assembly to rotate, thereby causing the second drive assembly and the first rotating member to rotate synchronously. The first drive member is connected to an external oil source. The second drive assembly further includes a second drive member, which is connected to the second rotating member through the third drive assembly. The second drive member drives the second rotating member to rotate synchronously by driving the third drive assembly to rotate. The third drive assembly includes a third drive member, which is capable of driving the third rotating member to rotate.

[0011] Optionally, the first drive assembly further includes a first connector, which connects the first rotating member and the second fixing member. The rotation of the first rotating member drives the second fixing member to rotate around the azimuth axis through the first connector.

[0012] Optionally, the first drive assembly further includes a first connector, which includes a first part and a second part, the first part and the second part being arranged on both sides of the first rotating member, the first part connecting the first rotating member and the second fixing member, and the second part connecting the first rotating member and the second drive member.

[0013] Optionally, the second drive assembly further includes a second connector that connects the second rotating member and the third drive assembly.

[0014] Optionally, the third drive assembly further includes a third connector, which is connected between the second drive member and the second rotating member, and the third connector is equipped with the third drive member.

[0015] Optionally, the first fixing member is fitted onto the outside of the first rotating member. The inner wall of the first fixing member is provided with a plurality of first fixing annular grooves, which are arranged along the rotation axis of the first rotating member. The first fixing pipeline communicates with the first fixing annular grooves. The first rotating member is provided with a plurality of first rotating connecting passages, which are respectively connected to the plurality of first rotating connecting passages. The first rotating connecting passages are connected to the first fixing annular grooves and correspond one-to-one. The first fixing pipeline includes a first fixed oil inlet pipeline and a first fixed oil outlet pipeline. The first rotating pipeline includes a first rotating oil inlet pipeline and a first rotating oil outlet pipeline. The first fixed oil inlet pipeline is connected to the first rotating oil inlet pipeline through the first fixing annular groove and the first rotating connecting passage. The first fixed oil outlet pipeline is connected to the first rotating oil outlet pipeline through the first fixing annular groove and the first rotating connecting passage.

[0016] Optionally, the second fixing member is fitted onto the outside of the second rotating member. The inner wall of the second fixing member is provided with a plurality of second fixing annular grooves, which are arranged along the rotation axis of the second rotating member. The second fixing pipeline communicates with the second fixing annular grooves. The second rotating member is provided with a plurality of second rotating connecting passages, which are respectively connected to the plurality of second rotating connecting passages. The second rotating connecting passages are connected to the second fixing annular grooves and correspond one-to-one. The second fixing pipeline includes a second fixed oil inlet pipeline and a second fixed oil outlet pipeline. The second rotating pipeline includes a second rotating oil inlet pipeline and a second rotating oil outlet pipeline. The second fixed oil inlet pipeline is connected to the second rotating oil inlet pipeline through the second fixing annular groove and the second rotating connecting passage. The second fixed oil outlet pipeline is connected to the second rotating oil outlet pipeline through the second fixing annular groove and the second rotating connecting passage.

[0017] Optionally, the first drive assembly includes at least two first rotating conduits, one of which is connected to the second drive member, and the other of which is connected to the second fixing member.

[0018] Optionally, the third drive assembly further includes a third conduit connected to the third drive member, and the third conduit is also connected to the second rotation conduit.

[0019] Optionally, the first rotating member includes a first axial portion and a first radial portion connected to the bottom of the first axial portion. The first axial portion and the first radial portion rotate about the axis of the first axial portion. The axis of the first axial portion is parallel to the axis of the first rotating member. The first radial portion protrudes from the first axial portion along the radial direction of the first axial portion. The first fixing pipe is disposed on the outer surface of the first axial portion, and the first rotating pipe is disposed on the outer surface of the first radial portion. The first fixing member is fitted onto the outside of the first axial portion, and the first fixing member is fixedly connected to the base supporting the first driving assembly. Attached Figure Description

[0020] The following figures are included as part of this application for understanding the application. The figures illustrate embodiments of the application and their descriptions, explaining the apparatus and principles of the application. In the figures,

[0021] Figure 1 This is a front-view stereoscopic view of a three-axis non-magnetic simulation turntable according to a preferred embodiment of this application;

[0022] Figure 2 for Figure 1Another front-view stereoscopic schematic diagram of the three-axis non-magnetic simulation turntable is shown, in which the housing of the second drive component is omitted;

[0023] Figure 3 for Figure 1 The diagram shows a rear-view stereoscopic view of the three-axis non-magnetic simulation turntable.

[0024] Figure 4 for Figure 1 The diagram shows a top view of a three-axis non-magnetic simulation turntable.

[0025] Figure 5 For along Figure 4 A schematic diagram of the cross-section intercepted by line AA in the diagram;

[0026] Figure 6 for Figure 1 The diagram shows a right-side cross-section of the three-axis non-magnetic simulation turntable.

[0027] Figure 7 for Figure 5 An enlarged view of part B of the three-axis non-magnetic simulation turntable shown;

[0028] Figure 8 for Figure 5 An enlarged view of section C of the three-axis non-magnetic simulation turntable shown;

[0029] Figure 9 for Figure 1 The diagram shows a left view of the three-axis non-magnetic simulation turntable.

[0030] Explanation of reference numerals in the attached figures:

[0031] 100: Three-axis non-magnetic simulation turntable

[0032] 110: First driving component

[0033] 111: First rotating component; 112: First fixed component

[0034] 113: First driving component; 114: First connecting component

[0035] 115: First rotating conduit; 116: First fixed conduit

[0036] 117: First stop bearing 118: First ring disc

[0037] 119: Base; 120: First sealing ring

[0038] 121: First limiting component; 122: First mating component

[0039] 123: First bearing; 124: Second bearing

[0040] 125: First fixed annular groove; 126: First fixed connecting path

[0041] 129: First rotational connecting path; 131: First axial section

[0042] 132: First radial part; 133: First part

[0043] 134: Part Two 140: Second Drive Component

[0044] 141: Second rotating component; 142: Second fixed component

[0045] 143: Second driving component; 144: Second connecting component

[0046] 145: Second rotating conduit; 146: Second fixed conduit

[0047] 147: Second anti-rotation seat; 148: Second ring plate.

[0048] 149: Second sealing ring; 150: Second limiting element

[0049] 151: Second mating part; 152: Third bearing

[0050] 153: Fourth bearing; 154: Second fixing ring groove

[0051] 155: Second fixed connecting path; 157: Second rotating connecting path

[0052] 158: Second axial portion; 159: Second radial portion

[0053] 170: Third drive component 171: Third drive element

[0054] 172: Third rotating component; 173: Third connecting component

[0055] 174: Third pipe; 177: Fifth bearing Detailed Implementation

[0056] The following description provides numerous specific details to offer a more thorough understanding of this application. However, it will be apparent to those skilled in the art that this application can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described to avoid confusion with this application.

[0057] To fully understand this application, detailed portions will be set forth in the following description in order to illustrate it. Obviously, implementation of this application is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of this application are described in detail below; however, other embodiments may exist besides these detailed descriptions, and should not be construed as being limited to the embodiments set forth herein.

[0058] It should be understood that the terminology used herein is intended only to describe particular embodiments and is not intended to limit the scope of this application. The singular forms “a,” “an,” and “the” are also intended to include the plural forms unless the context clearly indicates otherwise. When the terms “comprising” and / or “including” are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof. The terms “upper,” “lower,” “front,” “rear,” “left,” “right,” and similar expressions used in this application are for illustrative purposes only and are not intended to be limiting.

[0059] The ordinal numbers such as "first" and "second" used in this application are merely identifiers and have no other meaning, such as a specific order. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0060] The specific embodiments of this application will be described in more detail below with reference to the accompanying drawings, which illustrate representative embodiments of this application and are not intended to limit this application.

[0061] like Figure 1 As shown, this application provides a three-axis non-magnetic simulation turntable 100, which can simulate various postures and motion states of the product under test in space. For example, the three-axis non-magnetic simulation turntable 100 can simulate the yaw, pitch, and roll motions of the product under test. In particular, the three-axis non-magnetic simulation turntable 100 can simulate the motion and position changes caused by the rotation of the three axes when the turntable rotates.

[0062] Combination Figure 2 and Figure 3As shown, the three-axis non-magnetic simulation turntable 100 includes a first drive assembly 110, which supplies hydraulic oil to the turntable. An external oil source supplies hydraulic oil to the first drive assembly 110. The external oil source can be an oil storage device such as an oil tank. The hydraulic oil from the external oil source can be transported by a drive device such as a hydraulic pump. For example, the hydraulic oil from the external oil source can be transported to the first drive assembly 110 by a hydraulic pump. The first drive assembly 110 is connected to the test specimen. The first drive assembly 110 can drive the test specimen to rotate around the azimuth axis D1.

[0063] The first drive component 110 is made of a non-magnetic material. The non-magnetic material can be made of non-magnetic metallic materials, non-magnetic ceramic materials, non-magnetic polymer materials, or non-magnetic composite materials. Non-magnetic metallic materials include copper, aluminum, silver, gold, tungsten, and stainless steel. Non-magnetic ceramic materials include alumina ceramics and silicon nitride ceramics. Non-magnetic polymer materials include polystyrene and polyethylene. Non-magnetic composite materials include carbon fiber composites and glass fiber composites. In this embodiment, the non-magnetic material includes, but is not limited to, the above-mentioned materials; a non-magnetic material that does not generate a magnetic field is considered a suitable material.

[0064] like Figure 5 and Figure 6As shown, the first drive assembly 110 includes a first rotating member 111, which is rotatable. The first rotating member 111 is rotatable about an azimuth axis D1. The axial direction of the first rotating member 111 is parallel to the azimuth axis D1. The first rotating member 111 is rotatable about its axial direction. Rotation of the first rotating member 111 can drive the test specimen to rotate. The first rotating member 111 is rotatable about the azimuth axis D1, thereby driving the test specimen to rotate about the azimuth axis D1. For example, rotation of the first rotating member 111 about the azimuth axis D1 can perform yaw tests on the test specimen. The first rotating member 111 includes a first axial portion 131 and a first radial portion 132. The first radial portion 132 is disposed at the bottom of the first axial portion 131, and the first axial portion 131 and the first radial portion 132 are connected. The first axial portion 131 and the first radial portion 132 rotate about the axial direction of the first rotating member 111. The axial direction of the first axial portion 131 is parallel to the axial direction of the first rotating member 111. The first rotating member 111 rotates about the axis of the first axial portion 131. The first axial portion 131 and the first radial portion 132 rotate about the axis of the first axial portion 131. The first radial portion 132 protrudes from the first axial portion 131 along the radial direction of the first rotating member 111. The radial direction of the first rotating member 111 is parallel to the radial direction of the first axial portion 131. The first radial portion 132 protrudes from the first axial portion 131 along the radial direction of the first axial portion 131. The axial direction of the first axial portion 131 is parallel to the azimuth axis D1. The length direction of the first radial portion 132 is parallel to the radial direction of the first rotating member 111. The length direction of the first radial portion 132 is parallel to the pitch axis D2. The azimuth axis D1 is perpendicular to the pitch axis D2. The pitch axis D2 is parallel to the radial direction of the first rotating member 111. The first axial portion 131 is rotatable about the azimuth axis D1. The first radial portion 132 is rotatable about the azimuth axis D1.

[0065] The first drive assembly 110 also includes a first fixing member 112, which is connected to the first rotating member 111. The first rotating member 111 and the first fixing member 112 are rotatably connected. The first fixing member 112 is constructed as a generally hollow cylindrical structure. The first fixing member 112 can be fitted onto the first rotating member 111. The first fixing member 112 is fitted onto the outside of the first rotating member 111. The first fixing member 112 is fitted onto the outside of the first axial portion 131. The first fixing member 112 is fixedly connected to the bottom member supporting the first drive assembly 110. The first fixing member 112 does not rotate relative to the first axial portion 131. A first radial portion 132 protrudes from the first axial portion 131 along the radial direction of the first rotating member 111.

[0066] The first rotating member 111 is rotatable relative to the first fixed member 112. The first axial portion 131 is rotatable about the azimuth axis D1 relative to the first fixed member 112. A first bearing 123 is provided between the first fixed member 112 and the first rotating member 111. The first bearing 123 enables the first rotating member 111 to rotate relative to the first fixed member 112. The first radial portion 132 is rotatable about the azimuth axis D1 relative to the first fixed member 112.

[0067] like Figure 8 As shown, the first drive assembly 110 further includes a first rotating conduit 115 and a first fixed conduit 116, which are connected. The first fixed conduit 116 is connected to a first fixing member 112. The first fixed conduit 116 extends along the radial direction of the first fixing member 112. The radial direction of the first fixing member 112 is parallel to the radial direction of the first axial portion 131. The first fixed conduit 116 extends along the radial direction of the first axial portion 131. The first fixed conduit 116 is disposed on the outer surface of the first axial portion 131. The first rotating conduit 115 is connected to a first rotating member 111. The first rotating conduit 115 extends along the radial direction of the first rotating member 111. The radial direction of the first rotating member 111 is parallel to the longitudinal direction of the first radial portion 132. The first rotating conduit 115 extends along the longitudinal direction of the first radial portion 132. The first rotating conduit 115 is disposed on the outer surface of the first radial portion 132. Preferably, the first fixed conduit 116 is connected to an external oil source. Hydraulic oil from an external oil source can enter the first fixed pipeline 116. Hydraulic oil in the first fixed pipeline 116 can also flow back to the external oil source. Hydraulic oil from the external oil source can enter the first rotating pipeline 115 through the first fixed pipeline 116. The first rotating pipeline 115 can also flow back to the external oil source through the first fixed pipeline 116.

[0068] like Figure 5 and Figure 6 As shown, the three-axis non-magnetic simulation turntable 100 also includes a second drive assembly 140, which is connected to the first drive assembly 110. The second drive assembly 140 is connected to the first rotating member 111. The first drive assembly 110 supplies hydraulic oil to the second drive assembly 140 through the first rotating member 111. The second drive assembly 140 is connected to the test specimen. The second drive assembly 140 can drive the test specimen to rotate about the pitch axis D2.

[0069] In this way, the external oil source connection to the first fixed pipeline 116 will not rotate, and the hydraulic oil in the first rotating pipeline 115 will enter the second drive assembly 140. The second drive assembly 140 will not rotate relative to the first rotating pipeline 115. The second drive assembly 140 and the first rotating pipeline 115 rotate synchronously, thereby preventing pipeline entanglement or pipeline breakage.

[0070] The second drive component 140 is made of a non-magnetic material. The non-magnetic material can be made of non-magnetic metallic materials, non-magnetic ceramic materials, non-magnetic polymer materials, or non-magnetic composite materials. Non-magnetic metallic materials include copper, aluminum, silver, gold, tungsten, and stainless steel. Non-magnetic ceramic materials include alumina ceramics and silicon nitride ceramics. Non-magnetic polymer materials include polystyrene and polyethylene. Non-magnetic composite materials include carbon fiber composites and glass fiber composites. In this embodiment, the non-magnetic material includes, but is not limited to, the above-mentioned materials; a non-magnetic material that does not generate a magnetic field is considered a suitable material.

[0071] like Figure 7 As shown, the second drive assembly 140 includes a second rotating member 141, which is rotatable. The second rotating member 141 is rotatable about the pitch axis D2. The axial direction of the second rotating member 141 is parallel to the pitch axis D2. The rotation of the second rotating member 141 can drive the test specimen to rotate. The rotation of the second rotating member 141 about the pitch axis D2 can drive the test specimen to rotate about the pitch axis D2. For example, the rotation of the second rotating member 141 about the pitch axis D2 can perform pitch tests on the test specimen. The combination of the rotation of the first rotating member 111 about the azimuth axis D1 and the rotation of the second rotating member 141 about the pitch axis D2 can jointly perform yaw or pitch tests on the test specimen.

[0072] The second rotating member 141 includes a second axial portion 158 and a second radial portion 159, which are connected. The second radial portion 159 protrudes from the second axial portion 158 along the radial direction of the second rotating member 141. The length direction of the second axial portion 158 is parallel to the axial direction of the second rotating member 141. The length direction of the second axial portion 158 is parallel to the pitch axis D2. The length direction of the second radial portion 159 is parallel to the radial direction of the second rotating member 141. The length direction of the second radial portion 159 is parallel to the azimuth axis D1. The second axial portion 158 and the second radial portion 159 are rotatable about the pitch axis D2.

[0073] The second drive assembly 140 also includes a second fixing member 142, which is connected to the second rotating member 141. The second rotating member 141 and the second fixing member 142 are rotatably connected. The second fixing member 142 is constructed as a generally hollow cylindrical structure. The second fixing member 142 can be fitted onto the second rotating member 141. The second fixing member 142 is fitted onto the outside of the second rotating member 141. The second fixing member 142 is fitted onto the outside of the second axial portion 158. The second radial portion 159 protrudes from the second axial portion 158 along the radial direction of the second rotating member 141.

[0074] The second rotating member 141 is rotatable relative to the second fixed member 142. The second axial portion 158 is rotatable about the pitch axis D2 relative to the second fixed member 142. A third bearing 152 is provided between the second fixed member 142 and the second rotating member 141. The third bearing 152 allows the second rotating member 141 to rotate relative to the second fixed member 142. The second radial portion 159 is rotatable about the pitch axis D2 relative to the second fixed member 142.

[0075] The second fixed member 142 is connected to the first rotating member 111. Hydraulic oil supplied by the first rotating member 111 can flow to the second fixed member 142. The second drive assembly 140 also includes a second rotating conduit 145 and a second fixed conduit 146, which are connected. Preferably, the second fixed conduit 146 is connected to the first rotating conduit 115. Hydraulic oil in the first rotating conduit 115 can enter the second fixed conduit 146. Hydraulic oil in the second fixed conduit 146 can also flow back to the first rotating conduit 115. Hydraulic oil in the first rotating conduit 115 can enter the second rotating conduit 145 through the second fixed conduit 146. The second rotating conduit 145 can also flow back to the first rotating conduit 115 through the second fixed conduit 146. Figure 1 As shown, the three-axis non-magnetic simulation turntable 100 also includes a third drive assembly 170, which is connected to the second drive assembly 140. The third drive assembly 170 is connected to the second rotating member 141. The second drive assembly 140 supplies hydraulic oil to the third drive assembly 170 through the second rotating member 141. The third drive assembly 170 is connected to the test specimen. The third drive assembly 170 can drive the test specimen to rotate around the roll axis D3. The roll axis D3 is perpendicular to the azimuth axis D1. The roll axis D3 is perpendicular to the pitch axis D2. For example, the third drive assembly 170 can perform roll and other tests on the test specimen. The first drive assembly 110, the second drive assembly 140, and the third drive assembly 170, combined, can jointly perform yaw, pitch, and / or roll and other tests on the test specimen.

[0076] In this way, the hydraulic oil in the second rotating pipe 145 enters the third drive assembly 170. The third drive assembly 170 does not rotate relative to the second rotating pipe 145. The third drive assembly 170 and the second rotating pipe 145 rotate synchronously, thereby preventing pipe entanglement or pipe breakage.

[0077] The third drive component 170 is made of a non-magnetic material. The non-magnetic material can be a non-magnetic metal, a non-magnetic ceramic, a non-magnetic polymer, or a non-magnetic composite material. Non-magnetic metals include copper, aluminum, silver, gold, tungsten, and stainless steel. Non-magnetic ceramics include alumina ceramics and silicon nitride ceramics. Non-magnetic polymers include polystyrene and polyethylene. Non-magnetic composites include carbon fiber composites and glass fiber composites. In this embodiment, the non-magnetic material includes, but is not limited to, the above-mentioned materials; a non-magnetic material that does not generate a magnetic field is considered a suitable material.

[0078] The third drive assembly 170 includes a third rotating member 172, which rotates about a roll axis D3. The third rotating member 172 is used to connect to the test specimen, allowing the test specimen to rotate about the roll axis D3. The third rotating member 172 is capable of performing roll tests on the test specimen. The test specimen is fixed to the third rotating member 172. The roll axis D3 is parallel to the thickness direction of the third rotating member 172. The third rotating member 172 and the test specimen rotate about the roll axis D3.

[0079] The third drive assembly 170 is connected to the second drive assembly 140. A second rotary conduit 145 is connected to the third drive assembly 170. Hydraulic oil from the second drive assembly 140 can enter the third drive assembly 170. Hydraulic oil from the third drive assembly 170 can also flow back to the second drive assembly 140. Hydraulic oil from the second drive assembly 140 can enter the third drive assembly 170 through the second rotary conduit 145. Hydraulic oil from the third drive assembly 170 can also flow back to the second drive assembly 140 through the second rotary conduit 145. Hydraulic oil from the second drive assembly 140 can enter the third drive assembly 170 through one second rotary conduit 145. Hydraulic oil from the third drive assembly 170 can flow back to the second drive assembly 140 through another second rotary conduit 145.

[0080] The first drive assembly 110 can drive the second drive assembly 140 to rotate. The first drive assembly 110 and the second drive assembly 140 can rotate together around the azimuth axis. The second drive assembly 140 and the third drive assembly 170 can rotate together around the azimuth axis. The first drive assembly 110 can drive the second drive assembly 140 to rotate around the azimuth axis. The second drive assembly 140 can drive the third drive assembly 170 to rotate. The second drive assembly 140 and the third drive assembly 170 can rotate together around the pitch axis. The second drive assembly 140 can drive the third drive assembly 170 to rotate around the pitch axis. The third drive assembly 170 can drive the test specimen to rotate. The third drive assembly 170 and the test specimen can rotate together around the roll axis. The third drive assembly 170 can drive the test specimen to rotate around the roll axis. According to the three-axis non-magnetic simulation turntable 100 of this application, the three-axis non-magnetic simulation turntable 100 includes a first drive assembly 110, a second drive assembly 140, and a third drive assembly 170. The first drive assembly 110 is made of non-magnetic material and includes a first rotating member 111, a first fixed member 112, a first rotating pipe 115, and a first fixed pipe 116. The first fixed member 112 is fitted outside the first rotating member 111, and the first rotating member 111 is rotatable relative to the first fixed member 112. The first rotating member 111 is provided with the first rotating pipe 115, and the first fixed member 112 is provided with the first fixed pipe 116. The first rotating pipe 115 and the first fixed pipe 116 are connected, and the first fixed pipe 116 is connected to an external oil source. The second drive assembly 140 is made of non-magnetic material and is connected to the first rotating member 111. The second drive assembly 140 includes a second rotating member 141, a second fixed member 142, and a third drive assembly 170. A second rotating conduit 145 and a second fixed conduit 146 are connected. A second fixed member 142 is fitted outside the second rotating member 141, which can rotate relative to the second fixed member 142. The second rotating member 141 is provided with the second rotating conduit 145, and the second fixed member 142 is provided with the second fixed conduit 146. The second rotating conduit 145 and the second fixed conduit 146 are connected. The second fixed conduit 146 is connected to the first rotating conduit 115. A third drive assembly 170 is made of non-magnetic material and is connected to the second rotating member 141. The second rotating conduit 145 is connected to the third drive assembly 170. The third drive assembly 170 includes a third rotating member 172, which is used to connect the test specimen. The first drive assembly 110 drives the second drive assembly 140 to rotate around the azimuth axis, the second drive assembly 140 drives the third drive assembly 170 to rotate around the pitch axis, and the third drive assembly 170 drives the test specimen to rotate around the roll axis.Therefore, the first drive assembly 110, the second drive assembly 140, and the third drive assembly 170 are all made of non-magnetic materials to avoid magnetic field interference and ensure the accuracy of the test results. The first drive assembly 110, the second drive assembly 140, and the third drive assembly 170 can all drive the test specimen to rotate, so that the test specimen can simulate the movement of three degrees of freedom: yaw, pitch, and roll. The first rotating pipe 115, the first fixed pipe 116, the second fixed pipe 146, and the second rotating pipe 145 will not get tangled or break due to rotation.

[0081] like Figure 5 As shown, the first drive assembly 110 further includes a first drive member 113, which is capable of outputting power. The first drive member 113 is used to provide torque to the first drive assembly 110. The first drive member 113 can be a hydraulic motor made of non-magnetic material. The first drive member 113 is connected to an external oil source. The external oil source can directly output hydraulic oil to the first drive member 113 so that the first drive member 113 can perform work. The first drive member 113 includes a first output shaft, the axial direction of which is parallel to the azimuth axis D1. The first output shaft rotates about the azimuth axis D1.

[0082] The first rotating member 111 is connected to the first driving member 113. The first rotating member 111, the first fixed member 112, and the first driving member 113 can be coaxially connected. The first rotating member 111 is connected to the first output shaft of the first driving member 113. The first driving member 113 drives the first rotating member 111 to rotate. The first rotating member 111 is connected to the second driving assembly 140. The first driving member 113 drives the second driving assembly 140 to rotate through the first rotating member 111. The connection direction between the first driving member 113 and the second driving assembly 140 is parallel to the axial direction of the first driving member 113. The axial direction of the first driving member is parallel to the axial direction of the first rotating member. The first driving member 113 drives the first rotating member 111 and the second driving assembly 140 to rotate, so as to drive the second driving assembly 140 and the first rotating member 111 to rotate synchronously. The first driving assembly 110 drives the second driving assembly 140 and the first rotating member 111 to rotate around the azimuth axis. The rotation direction of the first driving member 113 is parallel to the rotation direction of the first rotating member 111. The rotation of the first rotating member 111 causes the first axial portion 131 to rotate. The rotation direction of the first rotating member 111 is parallel to the rotation direction of the first axial portion 131. The axial direction of the first driving member 113 is parallel to the axial direction of the first axial portion 131. The first driving member 113 rotates about the azimuth axis. The first driving member 113 causes the first rotating member 111 to rotate about the azimuth axis. The first driving member 113 causes the first axial portion 131 to rotate about the azimuth axis D1.

[0083] like Figure 5As shown, the second drive assembly 140 further includes a second drive member 143, which is capable of outputting power. The second drive member 143 is used to provide torque to the second drive assembly 140. The second drive member 143 can be a hydraulic motor made of non-magnetic material. The second drive member 143 is connected to a first rotational conduit 115. The first rotational conduit 115 can output hydraulic oil to the second drive member 143 so that the second drive member 143 can perform work. The second drive member 143 includes a second output shaft, the axial direction of which is parallel to the pitch axis. The second output shaft of the second drive member 143 rotates about the pitch axis.

[0084] like Figure 8 As shown, the second drive member 143 is connected to the first rotating conduit 115. The first rotating conduit 115 is located outside the second drive member 143. The second drive member 143 and the first rotating conduit 115 are connected via an interface. Hydraulic oil from the first rotating conduit 115 can enter the second drive member 143. Hydraulic oil in the second drive member 143 can also flow back to the first rotating conduit 115. The first drive assembly 110 includes at least two first rotating conduits 115, one connected to the second drive member 143 and the other connected to the second fixed member 142. Hydraulic oil in the first rotating member 111 can flow to the second drive member 143 through one first rotating conduit 115. Hydraulic oil in the first rotating member 111 can flow to the second fixed member 142 through the other first rotating conduit 115.

[0085] The first rotating conduit 115 supplies hydraulic oil to the second driving member 143 and the second fixing member 142, respectively. The hydraulic oil in the first rotating conduit 115 can enter the second driving member 143 and the second fixing member 142, respectively. The hydraulic oil in the second driving member 143 and the second fixing member 142 can flow back to the first rotating conduit 115.

[0086] The third drive assembly 170 is located between the second drive member 143 and the second rotating member 141. The second drive member 143 is connected to the second rotating member 141 via the third drive assembly 170. The third drive assembly 170 and the second rotating member 141 are fixedly connected. The rotation of the second drive member 143 drives the third drive assembly 170 to rotate. The second drive member 143 and the third drive assembly 170 are coaxially connected. The second drive member 143 drives the third drive assembly 170 to rotate, thereby causing the second rotating member 141 to rotate synchronously. The rotation direction of the second drive member 143 is parallel to the rotation direction of the third drive assembly 170. The second drive member 143 rotates about the pitch axis. The third drive assembly 170 rotates about the pitch axis. The second drive member 143 drives the third drive assembly 170 to rotate about the pitch axis.

[0087] The third drive assembly 170 is located between the second drive member 143 and the second connecting member 144. The second connecting member 144 connects the second rotating member 141 and the third drive assembly 170. The second drive member 143 is connected to the second connecting member 144 via the third drive assembly 170. The third drive assembly 170 is fixedly connected to the second connecting member 144. The rotation of the second drive member 143 drives the third drive assembly 170 to rotate. The second drive member 143 and the third drive assembly 170 are coaxially connected. The third drive assembly 170 and the second rotating member 141 are coaxially connected. The rotation direction of the second drive member 143 is parallel to the rotation direction of the third drive assembly 170. The rotation direction of the third drive assembly 170 is parallel to the rotation direction of the second rotating member 141. The second drive member 143 rotates about the pitch axis. The third drive assembly 170 rotates about the pitch axis. The second rotating member 141 rotates about the pitch axis. The second drive member (143) drives the third drive assembly (170) and the second connecting member (144) to rotate, thereby causing the third drive assembly (170) and the second rotating member (141) to rotate synchronously. The second drive member 143 drives the third drive assembly 170 and the second rotating member 141 to rotate synchronously. The second drive member 143 drives the third drive assembly 170 and the second rotating member 141 to rotate about the pitch axis.

[0088] The third drive assembly 170 includes a third drive member 171, which drives a third rotating member 172 to rotate. The third drive member 171 drives the third rotating member 172 to rotate about a roll axis. The third drive member 171 outputs power. The third drive member 171 provides torque to the third drive assembly 170. The third drive member 171 can be a hydraulic motor made of non-magnetic material. The third drive member 171 drives the third rotating member 172 to rotate about a roll axis. The third drive member 171 includes a third output shaft, the axial direction of which is parallel to the roll axis. The third drive member 171 is connected to a second rotation conduit 145. Hydraulic oil output from the second drive assembly 140 can flow to the third drive member 171 to perform work; specifically, hydraulic oil output from the second rotation conduit 145 of the second drive assembly 140 can flow to the third drive member 171. The third rotating member 172 is fixed to the third output shaft of the third drive member 171. The third driving component 171 is coaxially connected to the third rotating component 172. Rotation of the third driving component 171 can drive the third rotating component 172 to rotate, thereby driving the measured component to rotate.

[0089] The third drive assembly 170 is capable of rotating together with the second drive assembly 140 about the azimuth axis. The third drive assembly 170 and the second rotating member 141 rotate together about the pitch axis. The third rotating member 172 is capable of rotating together with the second drive assembly 140 about the azimuth axis. The third rotating member 172 and the second rotating member 141 rotate together about the pitch axis. The third rotating member 172 is capable of rotating about the roll axis relative to the second rotating member 141. The third rotating member 172 is capable of rotating about the roll axis relative to the first rotating member 111.

[0090] The first drive assembly 110 further includes a first connector 114, which connects the first rotating member 111 and the second fixing member 142. The first connector 114 is constructed as a generally "U"-shaped frame structure. The first connector 114 is fixed to the first rotating member 111. The first connector 114 is rotatable with the first rotating member 111 about the azimuth axis D1. The rotation direction of the first connector 114 is parallel to the rotation direction of the first rotating member 111. The first connector 114 rotates about the azimuth axis D1. The first connector 114 is connected to the second fixing member 142. The second fixing member 142 is connected to the first rotating member 111 through the first connector 114. The first connector 114 is fixed to the second fixing member 142. The second drive assembly 140 is connected to the first rotating member 111 through the first connector 114. The first drive assembly 110 drives the second drive assembly 140 to rotate about the azimuth axis D1. The second drive assembly 140 rotates with the first rotating member 111 about the azimuth axis D1. The second drive assembly 140 rotates with the first connector 114 about the azimuth axis D1. The second fixing member 142 does not rotate relative to the first connector 114. The rotation direction of the second fixing member 142 is parallel to the rotation direction of the first connector 114. The rotation of the first rotating member 111 drives the second fixing member 142 to rotate about the azimuth axis through the first connector 114.

[0091] The first connecting member 114 includes a first part 133 and a second part 134, which are arranged on both sides of the first rotating member 111. The first part 133 connects the first rotating member 111 and the second fixing member 142, and the second part 134 connects the first rotating member 111 and the second driving member 143. The first driving assembly 110 drives the second driving assembly 140 to rotate around the azimuth axis D1 via the first connecting member 114. The rotation of the first rotating member 111 drives the second fixing member 142 to rotate around the azimuth axis D1 via the first connecting member 114. The rotation of the first rotating member 111 drives the second rotating member 141 to rotate around the azimuth axis D1 via the first connecting member 114. The rotation of the first rotating member 111 drives the second fixing pipe 146 to rotate around the azimuth axis D1 via the first connecting member 114. The rotation of the first rotating member 111 drives the second rotating pipe 145 to rotate around the azimuth axis D1 via the first connecting member 114. The first connecting member 114 rotates relative to the first fixing member 112. The second rotating member 141 rotates relative to the first fixed member 112 about the azimuth axis D1. The rotation of the first rotating member 111 drives the second driving member 143 to rotate about the azimuth axis D1 via the first connecting member 114. The second rotating member 141 rotates relative to the first connecting member 114 about the pitch axis D2. The second driving assembly 140 drives the third driving assembly 170 to rotate about the pitch axis D2. The third driving assembly 170 rotates with the second rotating member 141 about the pitch axis D2. The third driving assembly 170 rotates relative to the first connecting member 114 about the pitch axis D2.

[0092] The second drive assembly 140 further includes a second connector 144, which is connected to the second rotating member 141. The second connector 144 and the second rotating member 141 are fixed together. The second connector 144 is sleeved onto the outside of the second rotating member 141. The second connector 144 is connected to a second drive assembly 143. The second drive assembly 143 drives the second connector 144 to rotate, thereby causing the second rotating member 141 to rotate. The second connector 144 and the second rotating member 141 are coaxially connected, and the rotation direction of the second rotating member 141 is parallel to the rotation direction of the second connector 144. The second connector 144 rotates about the pitch axis. The axial direction of the second output shaft of the second drive assembly 143 is parallel to the axial direction of the second connector 144. The second drive assembly 143 drives the second connector 144 to rotate about the pitch axis, thereby causing the second rotating member 141 to rotate. The second connector 144 causes the second rotating member 141 to rotate about the pitch axis.

[0093] The second connecting member 144 is located between the third drive assembly 170 and the second rotating member 141. The third drive assembly 170 is located between the second drive member 143 and the second connecting member 144. The second drive member 143 is fixedly connected to the third drive assembly 170. The third drive assembly 170 is fixedly connected to the second connecting member 144. The second connecting member 144 is fixedly connected to the second rotating member 141. The rotation of the second drive member 143 drives the third drive assembly 170 and the second rotating member 141 to rotate. The second drive member 143 and the third drive assembly 170 are coaxially connected. The third drive assembly 170 and the second rotating member 141 are coaxially connected. The rotation direction of the second drive member 143 is parallel to the rotation direction of the third drive assembly 170. The rotation direction of the third drive assembly 170 is parallel to the rotation direction of the second rotating member 141. The second drive member 143 rotates about the pitch axis. The third drive assembly 170 rotates about the pitch axis. The second rotating member 141 rotates about the pitch axis. The second drive member 143 drives the third drive assembly 170 and the second rotating member 141 to rotate about the pitch axis. The third drive assembly 170 also includes a third connector 173, which is connected between the second drive member 143 and the second rotating member 141. The second connector 144 is located between the third connector 173 and the second rotating member 141. The third connector 173 is constructed as a frame structure. The third connector 173 is fixedly connected to the second drive member 143. The third connector 173 is fixedly connected to the second connector 144. The second connector 144 is fixedly connected to the second rotating member 141. The second drive member 143 drives the third connector 173 to rotate about the pitch axis. The third connector 173 is mounted on the third drive member 171. The third connector 173 and the third drive member 171 are coaxially connected. The third connector 173 drives the third drive member 171 to rotate. The third connector 173 is disposed outside the third drive member 171 and the third rotating member 172, and plays a role in fixing the third drive assembly 170 as a whole. The third connector 173 is connected to the third drive member 171. The third connector 173 has a cylindrical structure. When the third drive member 171 rotates about the pitch axis, the third rotating member 172, the third connector 173, and the third conduit 174 rotate together about the pitch axis. The third conduit 174 is located inside the third connector 173. Therefore, there is no relative rotation between the second connector 144 and the third connector 173, avoiding entanglement or breakage of the third conduit 174.

[0094] Combination Figure 4 and Figure 8As shown, the first fixing member 112 is provided with a first fixing conduit 116. The first rotating member 111 is provided with a first rotating conduit 115. The first fixing conduit 116 does not rotate relative to the first rotating member. The first rotating conduit 115 rotates. As an optional embodiment, the first fixing conduit 116 is provided at the interface of the first fixing member 112. The first fixing conduit 116 extends along the interface direction of the first fixing member 112. The first rotating conduit 115 is provided at the interface of the first rotating member 111. The first rotating conduit 115 extends along the length direction of the first radial portion. The first rotating conduit 115 extends along the radial direction of the first rotating member. The first rotating conduit 115 is provided on the outer surface of the first radial portion 132.

[0095] The first fixing member 112 is fitted onto the outside of the first rotating member 111. Hydraulic oil in the first fixing member 112 can flow to the first rotating member 111. The first rotating pipe 115 can rotate together with the first rotating member 111. The rotation direction of the first rotating pipe 115 is parallel to the rotation direction of the first rotating member 111. The first rotating pipe 115 rotates about an azimuth axis. To prevent hydraulic oil leakage, the first drive assembly 110 also includes a first sealing ring 120, which is located between the first fixing member 112 and the first rotating member 111. This prevents hydraulic oil leakage from the first fixing member 112.

[0096] As an optional implementation, the inner wall of the first fixing member 112 is provided with a plurality of first fixing annular grooves 125. The plurality of first fixing annular grooves 125 are located at different positions on the first fixing member 112. The plurality of first fixing annular grooves 125 are arranged along the axial direction of the first fixing member 112. The axial direction of the first fixing member 112 is parallel to the rotation axis of the first rotating member 111. The plurality of first fixing annular grooves 125 are arranged along the rotation axis of the first rotating member 111. The first fixing annular grooves 125 are generally annular. The axial direction of the first fixing annular grooves 125 is parallel to the azimuth axis. The axial direction of the first fixing annular grooves 125 is parallel to the axial direction of the first rotating member 111. The first fixing annular grooves 125 extend along the rotation direction of the first rotating member 111. The first fixing annular grooves 125 extend around the axial direction of the first rotating member 111. The extension direction of the first fixing annular grooves 125 is parallel to the rotation direction of the first rotating member 111. The first fixing annular grooves 125 are arranged around the first rotating member 111. The first fixed ring groove 125 is provided around the first axial portion 131.

[0097] Combination Figure 5As shown, a first fixed conduit 116 is connected to a first fixed member 112. The first fixed conduit 116 is located outside the first fixed member 112. The first fixed conduit 116 can be connected to the first fixed member 112 via an interface. The first fixed conduit 116 communicates with a first fixed annular groove 125. A first fixed connecting passage 126 may be provided in the first fixed member 112. The first fixed conduit 116 is connected to the first fixed annular groove 125 via the first fixed connecting passage 126. The first fixed connecting passage 126 is located between the first fixed conduit 116 and the first fixed annular groove 125. The extending direction of the first fixed connecting passage 126 is parallel to the radial direction of the first rotating member 111. The first fixed connecting passage 126 connects the first fixed conduit 116 and the first fixed annular groove 125. Hydraulic oil in the first fixed conduit 116 can enter the first fixed annular groove 125 through the first fixed connecting passage 126. Hydraulic oil from an external oil source can enter the first fixed member 112 through the first fixed conduit 116. Hydraulic oil from an external oil source can enter the first fixing ring groove 125 inside the first fixing member 112. Hydraulic oil from an external oil source can enter the first fixing ring groove 125 inside the first fixing member 112 through the first fixing pipeline 116 and the first fixing connecting passage 126.

[0098] like Figure 4 As shown, the first rotating member 111 has multiple first rotating connecting passages 129, and multiple first rotating pipes 115 are respectively connected to the multiple first rotating connecting passages 129. The first rotating connecting passages 129 rotate together with the first rotating member 111. The first rotating pipes 115 are connected to the first fixed annular grooves 125 through the first rotating connecting passages 129. The first fixed member 112 has multiple first fixed annular grooves 125 inside. The multiple first rotating connecting passages 129 are connected to the multiple first fixed annular grooves 125 and correspond one-to-one. The first rotating connecting passages 129 and the first fixed annular grooves 125 remain connected. The first rotating connecting passages 129 are connected to the first fixed annular grooves 125 along the radial direction of the first rotating member 111. The first rotating connecting passages 129 are aligned with the first fixed annular grooves 125 along the radial direction of the first rotating member 111. When the first rotating member 111 rotates, the first rotating connecting passages 129 and the first fixed annular grooves 125 remain connected at all times.

[0099] Hydraulic oil in the first fixed conduit 116 enters the first fixed annular groove 125 through the first fixed connecting passage 126. Hydraulic oil in the first fixed annular groove 125 enters the first rotating connecting passage 129. Hydraulic oil in the first rotating connecting passage 129 enters the first rotating member 111. The first rotating conduit 115 is connected to the first rotating member 111. Hydraulic oil in the first rotating connecting passage 129 enters the first rotating conduit 115 through the first rotating member 111. The first rotating conduit 115 is located outside the first rotating member 111. The first rotating conduit 115 can be connected to the first rotating member 111 via an interface. The first rotating conduit 115 is connected to the first radial portion 132. The first rotating conduit 115 rotates together with the first rotating member 111. The first rotating conduit 115 is connected to the first rotating connecting passage 129. Hydraulic oil in the first rotating connecting passage 129 can enter the first rotating conduit 115.

[0100] The first fixed pipeline 116 includes a first fixed inlet pipeline and a first fixed outlet pipeline. The first fixed inlet pipeline and the first fixed outlet pipeline are arranged in parallel. Both the first fixed inlet pipeline and the first fixed outlet pipeline are connected to the first fixed member 112. The first rotating pipeline 115 includes a first rotating inlet pipeline and a first rotating outlet pipeline. The first rotating inlet pipeline and the first rotating outlet pipeline are arranged in parallel. Both the first rotating inlet pipeline and the first rotating outlet pipeline are connected to the first rotating member 111. The first fixed inlet pipeline is connected to the first rotating inlet pipeline through a first fixed annular groove 125 and a first rotating connecting passage 129. Hydraulic oil from an external oil source can enter the first rotating inlet pipeline through the first fixed inlet pipeline. The external oil source enters the first rotating member 111 through the first fixed member 112. The first fixed outlet pipeline is connected to the first rotating outlet pipeline through the first fixed annular groove 125 and the first rotating connecting passage 129. The hydraulic oil in the first rotating oil outlet line can flow back to the external oil source through the first fixed oil outlet line. The hydraulic oil in the first rotating component 111 flows back to the external oil source through the first fixed component 112.

[0101] In this way, the first rotating connecting path 129 and the first fixed ring groove 125 remain connected when the first rotating member 111 rotates, and the first fixed ring groove 125 extends along the rotation direction of the first rotating member 111, so as to prevent the first rotating connecting path 129 and the first fixed ring groove 125 from getting tangled together, and also to prevent the first rotating pipe 115 and the first fixed pipe 116 from being affected by other structures and breaking.

[0102] The second fixing member 142 is provided with a second fixing conduit 146. The second rotating member 141 is provided with a second rotating conduit 145. As an optional embodiment, the second fixing conduit 146 is provided at the interface of the second fixing member 142. The second fixing conduit 146 extends along the interface direction of the second fixing member 142. The second rotating conduit 145 extends along the axial direction of the second rotating member 141. The second rotating conduit 145 is provided along the second axial portion 158. The second rotating conduit 145 extends along the axial direction of the second axial portion 158.

[0103] Hydraulic oil in the second fixed member 142 can flow to the second rotating member 141. The second rotating pipe 145 can rotate together with the second rotating member 141. Hydraulic oil can enter the second rotating pipe 145 through the second fixed member 142. The rotation direction of the second rotating pipe 145 is parallel to the rotation direction of the second rotating member 141. The second rotating pipe 145 rotates about the pitch axis.

[0104] The first rotating conduit 115 is connected to the second fixed conduit 146. The first rotating conduit 115 and the second fixed conduit 146 are in communication. The connection method between the first rotating conduit 115 and the second fixed conduit 146 can include threaded connection, flange connection, welded connection, socket connection, or compression fitting connection, etc. In this embodiment, the connection method between the first rotating conduit 115 and the second fixed conduit 146 includes, but is not limited to, the above methods; a fixed connection between the first rotating conduit 115 and the second fixed conduit 146 is a satisfactory connection method. Hydraulic oil from the first fixed conduit 116 can enter the second fixed conduit 146. Hydraulic oil from the second fixed conduit 146 can also enter the first fixed conduit 116. Of course, the first rotating conduit 115 and the second fixed conduit 146 can be constructed as a single unit, with the first rotating conduit 115 and the second fixed conduit 146 simply being in communication.

[0105] The second fixed conduit 146 can be connected to the second fixed member 142 via an interface. Hydraulic oil from the second fixed conduit 146 can enter the second fixed member 142. To prevent hydraulic oil leakage, the second drive assembly 140 also includes a second sealing ring 149, which is located between the second fixed member 142 and the second rotating member 141. This prevents hydraulic oil leakage from the second fixed member 142.

[0106] In one optional implementation, the inner wall of the second fixing member 142 is provided with a plurality of second fixing annular grooves 154. The plurality of second fixing annular grooves 154 are located at different positions on the second fixing member 142. The plurality of second fixing annular grooves 154 are arranged along the rotation axis of the second rotating member 141. The axial direction of the second fixing member 142 is parallel to the rotation axis of the second rotating member 141. The second fixing conduit 146 communicates with the second fixing annular grooves 154. The second fixing annular grooves 154 are generally annular in shape. The axial direction of the second fixing annular grooves 154 is parallel to the pitch axis. The axial direction of the second fixing annular grooves 154 is parallel to the axial direction of the second rotating member 141. The second fixing annular grooves 154 extend along the rotation direction of the second rotating member 141. The second fixing annular grooves 154 extend around the axial direction of the second rotating member 141. The extension direction of the second fixing annular grooves 154 is parallel to the rotation direction of the second rotating member 141. The second fixed ring groove 154 is provided around the second rotating member 141. The second fixed ring groove 154 is provided around the second axial portion 158.

[0107] The second fixed conduit 146 is connected to the second fixed member 142. The second fixed conduit 146 is located outside the second fixed member 142. The second fixed conduit 146 can be connected to the second fixed member 142 via an interface. The second fixed conduit 146 communicates with the second fixed annular groove 154. A second fixed connecting passage 155 can be provided in the second fixed member 142. The second fixed conduit 146 is connected to the second fixed annular groove 154 through the second fixed connecting passage 155. The second fixed connecting passage 155 is located between the second fixed conduit 146 and the second fixed annular groove 154. The extending direction of the second fixed connecting passage 155 is parallel to the radial direction of the second rotating member 141. The second fixed connecting passage 155 connects the second fixed conduit 146 and the second fixed annular groove 154. Hydraulic oil in the second fixed conduit 146 can enter the second fixed annular groove 154 through the second fixed connecting passage 155. Hydraulic oil in the second fixed conduit 146 can enter the second fixed member 142 through the second fixed connecting passage 155. Hydraulic oil in the second fixed pipeline 146 can enter the second fixed ring groove 154 inside the second fixed member 142.

[0108] The second rotating member 141 has multiple second rotating connecting passages 157, and multiple second rotating pipes 145 are respectively connected to the multiple second rotating connecting passages 157. The second rotating connecting passages 157 rotate together with the second rotating member 141. The second rotating connecting passages 157 are connected to the second fixed annular grooves 154. The second fixed member 142 has multiple second fixed annular grooves 154. The second rotating connecting passages 157 and second fixed annular grooves 154 are connected and correspond one-to-one. The second rotating pipes 145 are kept in communication with the second fixed annular grooves 154. The second rotating pipes 145 are connected to the second fixed annular grooves 154 along the radial direction of the second rotating member 141. The second rotating pipes 145 are aligned with the second fixed annular grooves 154 along the radial direction of the second rotating member 141. When the second rotating member 141 rotates, the second rotating connecting passages 157 and second fixed annular grooves 154 remain in communication at all times. Hydraulic oil in the second fixed pipe 146 enters the second fixed annular grooves 154 through the second fixed connecting passages 155. Hydraulic oil in the second fixed annular groove 154 enters the second rotating connecting passage 157.

[0109] The second fixed pipeline 146 includes a second fixed oil inlet pipeline and a second fixed oil outlet pipeline. The second fixed oil inlet pipeline and the second fixed oil outlet pipeline are arranged in parallel. Both the second fixed oil inlet pipeline and the second fixed oil outlet pipeline are connected to the second fixed member 142. The second rotating pipeline 145 includes a second rotating oil inlet pipeline and a second rotating oil outlet pipeline. The second rotating oil inlet pipeline and the second rotating oil outlet pipeline are arranged in parallel. Both the second rotating oil inlet pipeline and the second rotating oil outlet pipeline are connected to the second rotating member 141. The second fixed oil inlet pipeline is connected to the first rotating oil inlet pipeline. The second fixed pipeline 146 is connected to the first rotating pipeline 115. The first rotating pipeline 115 includes a first rotating oil inlet pipeline and a first rotating oil outlet pipeline. Hydraulic oil from the first rotating pipeline 115 can enter the second fixed pipeline 146. Hydraulic oil from the first rotating oil inlet pipeline can enter the second fixed oil inlet pipeline. Hydraulic oil from the second fixed pipeline 146 can enter the first rotating pipeline 115. The second fixed oil outlet line is connected to the first rotating oil outlet line. The hydraulic oil from the second fixed oil outlet line can enter the first rotating oil outlet line.

[0110] The second fixed pipeline 146 is connected to the second rotating component 141 via the second fixing member 142. The second fixed oil inlet pipeline is connected to the second rotating oil inlet pipeline via the second fixed annular groove 154 and the second rotating connecting passage 157. Hydraulic oil in the second fixed pipeline 146 can enter the second rotating oil inlet pipeline through the second fixed oil inlet pipeline. Hydraulic oil in the first rotating component enters the second rotating component through the second fixing member. The second fixed oil outlet pipeline is connected to the second rotating oil outlet pipeline via the second fixed annular groove 154 and the second rotating connecting passage 157. Hydraulic oil in the second rotating oil outlet pipeline can flow back to the first rotating pipeline 115 through the second fixed oil outlet pipeline. Hydraulic oil in the second rotating component enters the first rotating component through the second fixing member.

[0111] In this way, the second rotating connecting path 157 and the second fixed ring groove 154 remain connected when the second rotating member 141 rotates, and the second fixed ring groove 154 extends along the rotation direction of the second rotating member 141, so as to prevent the second rotating connecting path 157 and the second fixed ring groove 154 from getting tangled together, and also to prevent the first rotating pipe 115 and the first fixed pipe 116 from being affected by other structures and breaking.

[0112] The third drive assembly 170 also includes a third conduit 174, which is connected to the third drive member 171. The third conduit 174 is rotatable with the third drive member 171. The third conduit 174 is rotatable with the third drive member 171 about the pitch axis. The third conduit 174 is rotatable with the third drive member 171 about the azimuth axis. The third conduit 174 is connected to the third drive member 171. The third conduit 174 is also connected to a second rotation conduit 145. The second rotation conduit 145 can supply hydraulic oil to the third drive member 171 through the third conduit 174. The hydraulic oil in the second rotation conduit 145 can enter the third drive member 171. The hydraulic oil in the third drive member 171 can also flow back to the second rotation conduit 145. The second rotation conduit 145 can supply hydraulic oil to the third drive member 171. The hydraulic oil in the second rotation conduit 145 can enter the third drive member 171 through a third conduit 174. Hydraulic oil in another third drive component 171 can return to the second rotational conduit 145 through another third conduit 174. The third conduit 174 rotates about the roll axis. The roll axis is perpendicular to the pitch axis. The first drive assembly 110 also includes a first ring disk 118 and a first anti-rotation seat 117. The first ring disk 118 is fixedly connected to a first fixing member 112. The first ring disk 118 and the first fixing member 112 are fixed together by a connector. The first ring disk 118 is fixedly connected to the first anti-rotation seat 117. The first ring disk 118 and the first anti-rotation seat 117 are fixed together by a connector. The first fixing member 112 is fixed relative to the first ring disk 118 and the first anti-rotation seat 117. The three-axis non-magnetic simulation turntable 100 also includes a base 119, which is connected to the first drive assembly 110. The base 119 is the bottom component supporting the first drive assembly 110. The base 119 is fixedly connected to the first anti-rotation seat 117. The base 119 is used to fix the position of the first anti-rotation seat 117 and prevent the first anti-rotation seat 117 from rotating. The base 119 is connected to the first fixing member 112 through the first anti-rotation seat 117 and the first annular plate 118. The first fixing member 112 is fixedly connected to the base 119 that supports the first drive assembly 110. The first fixing member 112 is fixedly connected to the base 119 through the first annular plate 118 and the first anti-rotation seat 117. The first rotating member 111 is rotatable relative to the base 119. The first fixed pipe 116 is fixed relative to the base 119. The first rotating pipe 115 is rotatable relative to the base 119.

[0113] like Figure 9As shown, the three-axis non-magnetic simulation turntable 100 also includes a first limiting member 121 and a first mating member 122. The first limiting member 121 and the first mating member 122 are used to limit the rotation angle of the first drive assembly 110. The first limiting member 121 is connected to the first rotating member 111. The first mating member 122 is connected to the first fixing member 112. The first mating member 122 limits the rotational displacement of the first limiting member 121, thereby limiting the rotational displacement of the first rotating member 111. The first limiting member 121 is fixed to the first connecting member 114. The first mating member 122 is fixed to the base 119. The rotation of the first connecting member 114 drives the first limiting member 121 to rotate. The first mating member 122 is fixed relative to the base 119. The first mating member 122 limits the rotational displacement of the first limiting member 121. The first limiting member 121 is located at +48° and -48° rotation positions of the first connecting member 114, respectively. When the first connecting member 114 rotates to the +48° and -48° positions respectively, the first limiting member 121 and the first mating member 122 abut against each other, and the first limiting member stops moving, so that the first rotating member 111 stops moving, thereby achieving precise control of the rotation of the first driving component 110.

[0114] The three-axis non-magnetic simulation turntable 100 also includes a first bearing 123 and a second bearing 124 for fixing at the connection point. The first bearing 123 is disposed between the first fixed member 112 and the first rotating member 111. The second bearing 124 is disposed between the first driving member 113 and the base 119. The second bearing 124 is disposed between the first output shaft of the first driving member 113 and the base 119. The second bearing 124 allows the first output shaft to rotate relative to the base 119. Both the first bearing 123 and the second bearing 124 are made of non-magnetic materials to avoid generating a magnetic field.

[0115] The second drive assembly 140 also includes a second annular disk 148 and a second anti-rotation seat 147. The second annular disk 148 is fixedly connected to a second fixing member 142. The second annular disk 148 and the second fixing member 142 are fixed together by a connector. The second annular disk 148 is fixedly connected to the second anti-rotation seat 147. The second annular disk 148 and the second anti-rotation seat 147 are fixed together by a connector. The second fixing member 142 is fixed relative to the second annular disk 148 and the second anti-rotation seat 147. A first connecting member 114 is connected to the second drive assembly 140. The first connecting member 114 is fixedly connected to the second anti-rotation seat 147. The first connecting member 114 is used to fix the position of the second anti-rotation seat 147, ensuring that the first connecting member 114 and the second drive assembly 140 rotate together around the azimuth axis D1.

[0116] like Figure 1 and Figure 3As shown, the three-axis non-magnetic simulation turntable 100 also includes a second limiting member 150 and a second mating member 151. The second limiting member 150 and the second mating member 151 are used to limit the rotation angle of the second drive assembly 140. The second limiting member 150 is connected to the second rotating member 141. The second mating member 151 is connected to the second fixing member 142. The second mating member 151 limits the rotational displacement of the second limiting member 150, thereby limiting the rotational displacement of the second rotating member 141. The second limiting member 150 is fixed to the third drive assembly 170. The second limiting member 150 is connected to the second rotating member 141 through the third drive assembly 170. The second mating member 151 is fixed to the outer housing of the second fixing member 142. The rotation of the second drive assembly 140 drives the second limiting member 150 to rotate. The second mating member 151 is fixed relative to the second fixing member 142. The second mating member 151 limits the rotational displacement of the second limiting member 150. The second limiting member 150 is located at +48° and -48° rotation positions of the second connecting member 144, respectively. When the second driving assembly 140 rotates to the +48° and -48° positions, the second limiting member 150 abuts against the second mating member 151, and the second limiting member stops moving, so that the second rotating member 141 stops moving, thereby achieving precise control of the rotation of the second driving assembly 140.

[0117] The three-axis non-magnetic simulation turntable 100 also includes a third bearing 152 and a fourth bearing 153. The third bearing 152 is located between the second fixed member 142 and the second rotating member 141, and the fourth bearing 153 is located between the second driving member 143 and the first connecting member 114. Both the third bearing 152 and the fourth bearing 153 are made of non-magnetic materials to avoid generating a magnetic field.

[0118] like Figure 7 As shown, a portion of the third conduit 174 is located in the second connector 144, and another portion of the third conduit 174 is located in the third connector 173. The second connector 144 and the third connector 173 are fixedly connected. The rotation of the third connector 173 causes the second connector 144 to rotate, which in turn causes the second rotating member 141 to rotate.

[0119] like Figure 6As shown, the three-axis non-magnetic simulation turntable 100 also includes a third limiting member and a third mating member. The third limiting member and the third mating member are used to limit the rotation angle of the third drive assembly 170. The third limiting member is connected to the third rotating member 172. The third mating member is connected to the third connecting member 173. The third mating member limits the rotational displacement of the third limiting member, thereby limiting the rotational displacement of the third rotating member 172. The third limiting member is fixed to the third output shaft of the third drive assembly 171. The third limiting member is connected to the third rotating member 172 through the third drive assembly 171. The third mating member is fixed to the third connecting member 173. The rotation of the third output shaft of the third drive assembly 171 drives the third limiting member to rotate. The third mating member limits the rotational displacement of the third limiting member, thereby limiting the rotational displacement of the third rotating member 172. The third limiting member is located at the +48° and -48° rotation positions of the third drive assembly 171, respectively. When the third connector 173 rotates to the +48° and -48° positions respectively, the third limiting member and the third mating member abut against each other, and the third limiting member stops moving, so that the third rotating member 172 stops moving, thereby achieving precise control of the rotation of the third drive assembly 170.

[0120] The three-axis non-magnetic simulation turntable 100 also includes a fifth bearing 177, which is made of a non-magnetic material. The fifth bearing 177 is positioned between the third output shaft of the third drive member 171 and the third connecting member 173 to prevent the generation of a magnetic field.

[0121] The rotation of the first driving member 113 causes the first rotating member 111 and the first connecting member 114 to rotate. The rotation of the second driving member 143 causes the third connecting member 173 to rotate, the rotation of the third connecting member 173 causes the second connecting member 144 to rotate, the rotation of the second connecting member 144 causes the second rotating member 141 to rotate, and the rotation of the second rotating member 141 causes the third pipeline 174 to rotate. The rotation of the third driving member 171 causes the third rotating member 172 to rotate.

[0122] To prevent uneven weight distribution on both sides of the first connecting member 114, the three-axis non-magnetic simulation turntable 100 also includes a counterweight, which is connected to the first connecting member 114. The counterweight can also be connected to the second connecting member 144. The counterweight is also connected to the second fixed member 142 or the second driving member 143. The counterweight helps maintain the balance of the first connecting member 114 relative to its rotation center. The counterweight also helps maintain the balance of the second connecting member 144 relative to its rotation center. Furthermore, to facilitate product testing, the system can be balanced across the entire weight range of the product. Adjusting the axis balance using the counterweight ensures that the rotation center of the third connecting member 173 remains balanced, facilitating product testing for the user.

[0123] The first drive assembly 110 may also be equipped with an encoder, an electrical limit switch, and a mechanical limit switch. The encoder limits the rotation angle of the first output shaft of the first drive member 113. The electrical limit switch cuts off the power supply input to the first drive member 113 and issues an alarm signal when the proximity switch is activated. The second drive assembly 140 may also be equipped with an encoder, an electrical limit switch, and a mechanical limit switch. The encoder limits the rotation angle of the second output shaft of the second drive member 143. The electrical limit switch cuts off the power supply input to the second drive member 143 and issues an alarm signal when the proximity switch is activated. The third drive assembly 170 may also be equipped with an encoder, an electrical limit switch, and a mechanical limit switch. The encoder limits the rotation angle of the third output shaft of the third drive member 171. The electrical limit switch cuts off the power supply input to the third drive member 171 and issues an alarm signal when the proximity switch is activated.

[0124] The three-axis non-magnetic simulation turntable 100 of this application uses three hydraulic motors to drive the first rotating component 111, the second rotating component 141 and the third rotating component 172 to rotate respectively, and the pipeline design ensures that the pipelines do not become entangled or break due to the rotation of the frame.

[0125] The external oil source connected to the first fixed pipeline 116 will not rotate, and the hydraulic oil in the first rotating component 111 enters the second driving component 143 and the second fixed pipeline 146 respectively. The first rotating component 111 rotates synchronously with the first connecting component 114, thereby preventing pipeline entanglement or pipeline breakage.

[0126] The first driving component 113 drives the first rotating component 111 and the first connecting component 114 to rotate synchronously. The first rotating pipe 115 rotates along with it, and is always connected to the first fixed pipe during rotation. The first rotating pipe 115 supplies and returns oil to the second driving component 143, and also supplies hydraulic oil to the second fixed pipe 146. Both first rotating pipes 115 are connected to the second driving component 143. The hydraulic oil in the second driving component 143 can also flow back to the first rotating pipe 115. Alternatively, one of the two first rotating pipes 115 can supply oil to the second driving component 143, and the hydraulic oil in the second driving component 143 can flow back to the other of the two first rotating pipes 115. The other two first rotating pipes 115 are connected to the second fixed pipe 146. The hydraulic oil in the second fixed pipe 146 can also flow back to the first rotating pipe 115. One of the other two first rotating pipes 115 supplies oil to the second fixed pipe 146, and the hydraulic oil in the second fixed pipe 146 flows back to the other of the other two first rotating pipes 115.

[0127] The first connecting member 114 includes a first part 133 and a second part 134 along the pitch axis D2. The first part 133 is connected to the second driving member 143, and the second part 134 is connected to the second fixing member 142. A pair of non-magnetic angular contact bearings are provided between the first part 133 and the second driving member 143. The second driving member 143 and the non-magnetic bearings are coaxially mounted. A pair of non-magnetic angular contact bearings are provided between the second part 134 and the second fixing member 142. The second fixing member 142 and the non-magnetic bearings are coaxially mounted. In this way, the size of the second driving assembly 140 is reduced, ensuring that the entire turntable can enter the magnetic coil, and the simulation system can be magnetized in the magnetic field to verify whether the magnetic field distortion meets the requirements.

[0128] The third connecting member 173 is fixed together with the second connecting member 144. The second connecting member 144 is fixed to the second rotating member 141. The second rotating member 141 is fixed to the third pipeline 174. The second anti-rotation seat 147 is connected to the first connecting member 114 and the second ring disc 148 respectively. The second ring disc 148 is fixed to the second fixing member 142. The second fixing member 142 is supported by the second ring disc 148, the second anti-rotation seat 147 and the first connecting member 114. The hydraulic oil in the first rotating pipeline 115 supplies and returns oil to the third driving member 171 through the second fixing member 142, the second rotating member 141 and the third pipeline 174.

[0129] The second driving member 143 rotates, causing the third driving assembly 170, the second connecting member 144, the second rotating member 141, and the third pipeline 174 to rotate together. The second fixed pipeline 146 remains relatively stationary with respect to the first connecting member 114. The third pipeline 174 and the third driving assembly 170 move synchronously with the second driving member 143. In this way, the first rotating pipeline 115, the second fixed pipeline 146, the second rotating pipeline 145, and the third pipeline 174 will not become entangled or break.

[0130] A non-magnetic bearing is installed between the third connector 173 and the third drive component 171, and the third connector 173, the third drive component 171, and the non-magnetic bearing are coaxially mounted. The third drive component 171 and the non-magnetic bearing are coaxially mounted. This reduces the size of the inner frame shaft system. The third drive component 171 drives the test specimen on the third connector 173 to rotate.

[0131] The first drive assembly 110, second drive assembly 140, and third drive assembly 170 of the three-axis non-magnetic simulation turntable 100 of this application all use non-magnetic precision mechanical bearings to form the shaft system. A non-magnetic hydraulic motor provides rotational torque. A non-magnetic encoder provides rotational angle signals as position and speed feedback.

[0132] The external oil source directly supplies hydraulic oil to the first drive component 113. The external oil source also directly supplies hydraulic oil to the first fixed pipeline 116. The first rotating pipeline 115 supplies hydraulic oil to the second drive component 143. The first rotating pipeline 115 also supplies hydraulic oil to the second fixed pipeline 146. The second rotating pipeline 145 supplies hydraulic oil to the third drive component 171.

[0133] The first drive assembly 110, the second drive assembly 140, and the third drive assembly 170 rotate discontinuously. Each of these assemblies is designed with multi-stage limit mechanisms to ensure the safety of the platform. Each of these assemblies may include software limits, using an encoder to limit the rotation angle of the output shaft. Internally, each of these assemblies has both electrical and mechanical limit devices. The electrical limit uses a proximity switch; when the proximity switch activates, it cuts off the power input to the drive components and sends an alarm signal. The mechanical limit uses a stop block; when both the software and electrical limits fail, the mechanical stop block provides the limit. Additionally, the hydraulic overload protection of the drive components will also cut off the power input.

[0134] The first drive assembly 110, the second drive assembly 140, and the third drive assembly 170 have a range of motion of -45° to +45°. The designed limit switches are -47° and +47°, and the mechanical hard limits are -48° and +48°.

[0135] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of this application. Terms such as “part” or “component” appearing herein can refer to a single part or a combination of multiple parts. Terms such as “installation” or “installation” appearing herein can refer to one component being directly attached to another component or one component being attached to another component via an intermediary. A feature described in one embodiment herein may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0136] This application has been described through the above embodiments; however, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit this application to the described embodiments. Furthermore, those skilled in the art will understand that this application is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this application, all of which fall within the scope of protection claimed in this application. The scope of protection of this application is defined by the appended claims and their equivalents.

Claims

1. A three-axis non-magnetic simulation turntable, characterized in that, The three-axis non-magnetic simulation turntable includes: A first drive assembly (110) is made of non-magnetic material. The first drive assembly (110) includes a first rotating member (111), a first fixing member (112), a first rotating pipe (115), and a first fixing pipe (116). The first fixing member (112) is fitted outside the first rotating member (111). The first rotating member (111) is rotatable relative to the first fixing member (112). The first rotating member (111) is provided with the first rotating pipe (115). The first fixing member (112) is provided with the first fixing pipe (116). The first rotating pipe (115) and the first fixing pipe (116) are connected. The first fixing pipe (116) is connected to an external oil source. The second drive assembly (140) is made of non-magnetic material and is connected to the first rotating member (111). The second drive assembly (140) includes a second rotating member (141), a second fixing member (142), a second rotating pipe (145), and a second fixing pipe (146). The second fixing member (142) is fitted onto the outside of the second rotating member (141). The second rotating member (141) is rotatable relative to the second fixing member (142). The second rotating member (141) is provided with a second rotating pipe (145), and the second fixing member (142) is provided with a second fixing pipe (146). The second rotating pipe (145) and the second fixing pipe (146) are connected, and the second fixing pipe (146) is connected to the first rotating pipe (115). A third drive assembly (170) is made of a non-magnetic material. The third drive assembly (170) is connected to the second rotating member (141). The second rotating conduit (145) is connected to the third drive assembly (170). The third drive assembly (170) includes a third rotating member (172) for connecting the test specimen. The first drive assembly (110) drives the second drive assembly (140) to rotate around the azimuth axis, the second drive assembly (140) drives the third drive assembly (170) to rotate around the pitch axis, and the third drive assembly (170) drives the test specimen to rotate around the roll axis.

2. The three-axis non-magnetic simulation turntable according to claim 1, characterized in that, The first drive assembly (110) further includes a first drive member (113), which drives the first rotating member (111) and the second drive assembly (140) to rotate, so as to drive the second drive assembly (140) and the first rotating member (111) to rotate synchronously. The first drive member (113) is connected to an external oil source. The second drive assembly (140) further includes a second drive member (143), which is connected to the second rotating member (141) through the third drive assembly (170). The second drive member (143) drives the third drive assembly (170) to rotate, thereby causing the second rotating member (141) to rotate synchronously. The third drive assembly (170) includes a third drive member (171) which is capable of driving the third rotating member (172) to rotate.

3. The three-axis non-magnetic simulation turntable according to claim 2, characterized in that, The first drive assembly (110) further includes a first connector (114), which connects the first rotating member (111) and the second fixing member (142). The first rotating member (111) rotates through the first connector (114) to drive the second fixing member (142) to rotate around the azimuth axis.

4. The three-axis non-magnetic simulation turntable according to claim 2, characterized in that, The first drive assembly (110) further includes a first connector (114), which includes a first part and a second part. The first part and the second part are arranged on both sides of the first rotating member (111). The first part connects the first rotating member (111) and the second fixing member (142), and the second part connects the first rotating member (111) and the second drive member (143).

5. The three-axis non-magnetic simulation turntable according to claim 2, characterized in that, The second drive assembly (140) further includes a second connector (144) that connects the second rotating member (141) and the third drive assembly (170).

6. The three-axis non-magnetic simulation turntable according to claim 2, characterized in that, The third drive assembly (170) further includes a third connector (173) connected between the second drive member (143) and the second rotating member (141), and the third drive member (171) is mounted on the third connector (173).

7. The three-axis non-magnetic simulation turntable according to claim 1, characterized in that, The first fixing member (112) is fitted onto the outside of the first rotating member (111). The inner wall of the first fixing member (112) is provided with a plurality of first fixing ring grooves (125). The plurality of first fixing ring grooves (125) are arranged along the rotation axis of the first rotating member (111). The first fixing pipe (116) is connected to the first fixing ring grooves (125). The first rotating component (111) is provided with a plurality of first rotating connecting passages (129), and a plurality of first rotating pipes (115) are respectively connected to the plurality of first rotating connecting passages (129). The first rotating connecting passages (129) are connected to the first fixed annular groove (125) and correspond one to one. The first fixed pipeline (116) includes a first fixed oil inlet pipeline and a first fixed oil outlet pipeline, and the first rotating pipeline (115) includes a first rotating oil inlet pipeline and a first rotating oil outlet pipeline. The first fixed oil inlet pipeline is connected to the first rotating oil inlet pipeline through the first fixed annular groove (125) and the first rotating connecting passage (129). The first fixed oil outlet pipeline is connected to the first rotating oil outlet pipeline through the first fixed annular groove (125) and the first rotating connecting passage (129).

8. The three-axis non-magnetic simulation turntable according to claim 1, characterized in that, The second fixing member (142) is fitted onto the outside of the second rotating member (141). The inner wall of the second fixing member (142) is provided with a plurality of second fixing ring grooves (154). The plurality of second fixing ring grooves (154) are arranged along the rotation axis of the second rotating member (141). The second fixing pipe (146) is connected to the second fixing ring grooves (154). The second rotating component (141) is provided with a plurality of second rotating connecting passages (157), and a plurality of second rotating pipes (145) are respectively connected to a plurality of second rotating connecting passages (157). The second rotating connecting passages (157) are connected to the second fixed annular grooves (154) and correspond one-to-one. The second fixed pipeline (146) includes a second fixed oil inlet pipeline and a second fixed oil outlet pipeline. The second rotating pipeline (145) includes a second rotating oil inlet pipeline and a second rotating oil outlet pipeline. The second fixed oil inlet pipeline is connected to the second rotating oil inlet pipeline through the second fixed annular groove (154) and the second rotating connecting passage (157). The second fixed oil outlet pipeline is connected to the second rotating oil outlet pipeline through the second fixed annular groove (154) and the second rotating connecting passage (157).

9. The three-axis non-magnetic simulation turntable according to claim 2, characterized in that, The first drive assembly (110) includes at least two first rotation channels (115), one of which is connected to the second drive member (143), and the other of which is connected to the second fixing member (142).

10. The three-axis non-magnetic simulation turntable according to claim 2, characterized in that, The third drive assembly (170) further includes a third conduit (174) which is connected to the third drive member (171) and is also connected to the second rotating conduit (145).

11. The three-axis non-magnetic simulation turntable according to claim 1, characterized in that, The first rotating member (111) includes a first axial portion (131) and a first radial portion (132) connected to the bottom of the first axial portion (131). The first axial portion (131) and the first radial portion (132) rotate about the axis of the first axial portion (131). The axis of the first axial portion (131) is parallel to the axis of the first rotating member (111). The first radial portion (132) protrudes from the first axial portion (131) along the radial direction of the first axial portion (131). The first fixed conduit (116) is disposed on the outer surface of the first axial portion (131), and the first rotating conduit (115) is disposed on the outer surface of the first radial portion (132); The first fixing member (112) is fitted onto the outside of the first axial portion (131), and the first fixing member (112) is fixedly connected to the base (119) that supports the first drive assembly (110).

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