Three-axis non-magnetic simulation rotary table

Abstract

The invention relates to the technical field of aerospace tests, in particular to a three-axis non-magnetic simulation rotary table. The three-axis non-magnetic simulation rotary table comprises a first driving assembly, a second driving assembly and a third driving assembly, the first driving assembly comprises a first rotating part, a first fixing part, a first rotating pipeline and a first fixing pipeline, the first rotating part is provided with the first rotating pipeline, and the first fixing part is provided with the first fixing pipeline; the second driving assembly comprises a second rotating piece, a second fixing piece, a second rotating pipeline and a second fixing pipeline, the second rotating piece is provided with the second rotating pipeline, the second fixing piece is provided with the second fixing pipeline, the third driving assembly is connected with the second rotating piece, the third driving assembly comprises a third rotating piece, and the third rotating piece is used for being connected with a tested piece; the first driving assembly drives the second driving assembly to rotate around the azimuth axis, the second driving assembly drives the third driving assembly to rotate around the pitch axis, and the third driving assembly drives the tested piece to rotate around the transverse rolling shaft.

Description

Technical Field

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

[0002] In order to simulate the three degrees of freedom of the product under test, namely yaw, pitch and roll, the three-axis simulation turntable can simulate various postures and motion states of the product under test in space. The three-axis simulation turntable will generate magnetic field interference around the product under test, thus affecting the accuracy of the test results. When the three-axis simulation turntable is driven, it may also cause the oil circuits to become entangled with each other, or the oil circuits may break due to the rotation of the frame. Summary of the invention

[0003] A series of simplified concepts are introduced in the application content section, which will be further described in detail in the detailed implementation section. The application content section of this application does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

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

[0005] a first driving assembly, wherein the first driving assembly is made of a non-magnetic material, the first driving assembly comprises a first rotating member, a first fixed member, a first rotating pipeline and a first fixed pipeline, the first fixed member is sleeved on the outside of 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 pipeline, the first fixed member is provided with the first fixed pipeline, the first rotating pipeline is communicated with the first fixed pipeline, and the first fixed pipeline is communicated with an external oil source;

[0006] a second drive assembly, wherein the second drive assembly is made of a non-magnetic material, the second drive assembly is connected to the first rotating member, the second drive assembly comprises a second rotating member, a second fixed member, a second rotating pipeline and a second fixed pipeline, the second fixed member is sleeved on the outside of the second rotating member, the second rotating member can rotate relative to the second fixed member, the second rotating member is provided with a second rotating pipeline, the second fixed member is provided with a second fixed pipeline, the second rotating pipeline is communicated with the second fixed pipeline, and the second fixed pipeline is communicated with the first rotating pipeline;

[0007] A third driving assembly, the third driving assembly is made of non-magnetic material, the third driving assembly is connected to the second rotating member, the second rotating pipeline is connected to the third driving assembly, the third driving assembly includes a third rotating member, and the third rotating member is used to connect to the test piece;

[0008] The first driving assembly drives the second driving assembly to rotate around the azimuth axis, the second driving assembly drives the third driving assembly to rotate around the pitch axis, and the third driving assembly drives the test piece to rotate around the roll axis.

[0009] According to the three-axis non-magnetic simulation turntable of the present application, the three-axis non-magnetic simulation turntable includes a first drive component, a second drive component and a third drive component, the first drive component is made of non-magnetic material, the first drive component includes a first rotating member, a first fixed member, a first rotating pipeline and a first fixed pipeline, the first fixed member is sleeved on the outside of the first rotating member, the first rotating member can rotate relative to the first fixed member, the first rotating member is provided with a first rotating pipeline, the first fixed member is provided with a first fixed pipeline, the first rotating pipeline and the first fixed pipeline are connected, and the first fixed pipeline is connected to an external oil source; the second drive component is made of non-magnetic material, the second drive component is connected to the first rotating member, the second drive component includes a second rotating member, a second fixed member, a second fixed pipeline, and a third fixed pipeline. A rotating pipeline and a second fixed pipeline, the second fixed part is mounted on the outside of the second rotating part, the second rotating part can rotate relative to the second fixed part, the second rotating part is provided with a second rotating pipeline, the second fixed part is provided with a second fixed pipeline, the second rotating pipeline is communicated with the second fixed pipeline, and the second fixed pipeline is communicated with the first rotating pipeline; the third driving component is made of non-magnetic material, the third driving component is connected to the second rotating part, the second rotating pipeline is connected to the third driving component, the third driving component includes a third rotating part, and the third rotating part is used to connect the test piece; the first driving component drives the second driving component to rotate around the azimuth axis, the second driving component drives the third driving component to rotate around the pitch axis, and the third driving component drives the test piece 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 piece to rotate, so that the test piece simulates the movement of three degrees of freedom: yaw, pitch and roll. The first rotating pipeline, the first fixed pipeline, the second fixed pipeline and the second rotating pipeline will not be entangled and will not break due to rotation.

[0010] Optionally, the first drive assembly also includes a first drive member, which drives the first rotating member and the second drive assembly to rotate, so as to drive the second drive assembly and the first rotating member to rotate synchronously, and the first drive member is connected to an external oil source; the second drive assembly also includes a second drive member, which is connected to the second rotating member through the third drive assembly, and the second drive member drives the third drive assembly to rotate, so as to drive the second rotating member to rotate synchronously; the third drive assembly includes a third drive member, and the third drive member can drive the third rotating member to rotate.

[0011] Optionally, the first driving assembly further includes a first connecting member, the first connecting member connecting the first rotating member and the second fixed member, and the first rotating member rotates through the first connecting member to drive the second fixed member to rotate around the azimuth axis.

[0012] Optionally, the first driving assembly also includes a first connecting member, the first connecting member 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, the first part connects the first rotating member and the second fixed member, and the second part connects the first rotating member and the second driving member.

[0013] Optionally, the second driving assembly further includes a second connecting member, and the second connecting member connects the second rotating member and the third driving assembly.

[0014] Optionally, the third driving assembly further includes a third connecting member, the third connecting member is connected between the second driving member and the second rotating member, and the third driving member is installed on the third connecting member.

[0015] Optionally, the first fixed part is sleeved on the outside of the first rotating part, and the inner wall of the first fixed part is provided with a plurality of first fixed annular grooves, the plurality of first fixed annular grooves are arranged along the rotation axis direction of the first rotating part, and the first fixed pipeline is connected with the first fixed annular groove; a plurality of first rotating communication passages are provided in the first rotating part, the plurality of first rotating pipelines are respectively connected with the plurality of first rotating communication passages, and the first rotating communication passages are connected with the first fixed annular grooves and correspond one to one; the first fixed 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 with the first rotating oil inlet pipeline through the first fixed annular groove and the first rotating communication passage, and the first fixed oil outlet pipeline is connected with the first rotating oil outlet pipeline through the first fixed annular groove and the first rotating communication passage.

[0016] Optionally, the second fixed member is sleeved on the outside of the second rotating member, and the inner wall of the second fixed member is provided with a plurality of second fixed annular grooves, the plurality of second fixed annular grooves are arranged along the rotation axis direction of the second rotating member, and the second fixed pipeline is connected with the second fixed annular groove; a plurality of second rotating communication passages are provided in the second rotating member, the plurality of second rotating pipelines are respectively connected with the plurality of second rotating communication passages, and the second rotating communication passages are connected with the second fixed annular grooves and correspond one to one; the second fixed 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 with the second rotating oil inlet pipeline through the second fixed annular groove and the second rotating communication passage, and the second fixed oil outlet pipeline is connected with the second rotating oil outlet pipeline through the second fixed annular groove and the second rotating communication passage.

[0017] Optionally, the first driving assembly includes at least two first rotating pipelines, one first rotating pipeline is connected to the second driving member, and the other first rotating pipeline is connected to the second fixing member.

[0018] Optionally, the third driving assembly further includes a third pipeline, the third pipeline is connected to the third driving member, and the third pipeline is also in communication with the second rotating pipeline.

[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 around the axial direction of the first axial portion, the axial direction of the first axial portion is parallel to the axial direction of the first rotating member, and the first radial portion protrudes from the first axial portion along the radial direction of the first axial portion; the first fixed pipeline is arranged on the outer surface of the first axial portion, and the first rotating pipeline is arranged on the outer surface of the first radial portion; the first fixing member is sleeved on the outside of the first axial portion, and the first fixing member is fixedly connected to the base supporting the first driving assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following drawings of the present application are hereby used as part of the present application for understanding the present application. The drawings show the implementation methods of the present application and their descriptions, and are used to explain the device and principle of the present application. In the drawings,

[0021] Figure 1 It is a front perspective schematic diagram of a three-axis non-magnetic simulation turntable according to a preferred embodiment of the present application;

[0022] Figure 2 for Figure 1Another front perspective schematic diagram of the three-axis non-magnetic simulation turntable shown, wherein the housing of the second drive assembly is omitted;

[0023] Figure 3 for Figure 1 A rear perspective schematic diagram of a three-axis non-magnetic simulation turntable is shown;

[0024] Figure 4 for Figure 1 A top view schematic diagram of a three-axis non-magnetic simulation turntable is shown;

[0025] Figure 5 For along Figure 4 A schematic cross-sectional view taken along line AA in FIG.

[0026] Figure 6 for Figure 1 The right side cross-sectional schematic diagram of the three-axis non-magnetic simulation turntable shown;

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

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

[0029] Fig. 9 for Figure 1 The left schematic diagram of the three-axis non-magnetic simulation turntable shown;

[0030] Description of reference numerals:

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

[0032] 110: First drive assembly

[0033] 111: first rotating member 112: first fixed member

[0034] 113: first driving member 114: first connecting member

[0035] 115: first rotating pipeline 116: first fixed pipeline

[0036] 117: first anti-rotation seat 118: first ring plate

[0037] 119: Base 120: First sealing ring

[0038] 121: first limiting member 122: first matching member

[0039] 123: First bearing 124: Second bearing

[0040] 125: first fixed ring groove 126: first fixed communication passage

[0041] 129: first rotation communication passage 131: first axial portion

[0042] 132: first radial portion 133: first portion

[0043] 134: Second part 140: Second driving assembly

[0044] 141: second rotating member 142: second fixed member

[0045] 143: second driving member 144: second connecting member

[0046] 145: Second rotating pipeline 146: Second fixed pipeline

[0047] 147: second anti-rotation seat 148: second ring plate

[0048] 149: second sealing ring 150: second limiting member

[0049] 151: second matching piece 152: third bearing

[0050] 153: Fourth bearing 154: Second fixed ring groove

[0051] 155: second fixed communication passage 157: second rotating communication passage

[0052] 158: second axial portion 159: second radial portion

[0053] 170: third driving assembly 171: third driving member

[0054] 172: third rotating member 173: third connecting member

[0055] 174: Third pipeline 177: Fifth bearing DETAILED DESCRIPTION

[0056] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present application. However, it is apparent to those skilled in the art that the present application can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present application, some technical features well known in the art are not described.

[0057] In order to thoroughly understand the present application, detailed parts will be presented in the following description to illustrate the present application. Obviously, the implementation of the present application is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present application are described in detail below, but in addition to these detailed descriptions, the present application may also have other embodiments and should not be interpreted as being limited to the embodiments presented here.

[0058] It should be understood that the purpose of the terms used herein is only to describe specific embodiments and is not intended to be limiting of the present application, and the singular forms of "one", "an" and "said / the" are also intended to include plural forms, unless the context clearly indicates otherwise. When the terms "comprise" and / or "include" are used in this specification, they indicate the presence of the features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof. The terms "upper", "lower", "front", "back", "left", "right" and similar expressions used in this application are for illustrative purposes only and are not limiting.

[0059] Ordinal numbers such as "first" and "second" cited in this application are merely identifiers and do not have any other meanings, such as a specific order, etc. In this application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature "above", "above" and "above" a second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature "below", "below" and "below" a second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0060] Hereinafter, specific embodiments of the present application will be described in more detail with reference to the accompanying drawings. These drawings show representative embodiments of the present application and do not limit the present application.

[0061] like Figure 1 As shown, the present application provides a three-axis non-magnetic simulation turntable 100, which can simulate various postures and motion states of the tested product in space. For example, the three-axis non-magnetic simulation turntable 100 can simulate the motion of the three degrees of freedom of yaw, pitch and roll of the tested product. In particular, the three-axis non-magnetic simulation turntable 100 can simulate the motion and position change caused by the rotation of the three axis systems when the turntable rotates.

[0062] Combination Figure 2 and Figure 3As shown, the three-axis non-magnetic simulation turntable 100 includes a first drive component 110, and the first drive component 110 is used to provide hydraulic oil to the three-axis non-magnetic simulation turntable 100. An external oil source delivers hydraulic oil to the first drive component 110. The external oil source can be an oil storage device such as an oil storage tank. The hydraulic oil in the external oil source can be delivered by a driving device such as a hydraulic pump. For example, the hydraulic oil in the external oil source can be delivered to the first drive component 110 by a hydraulic pump. The first drive component 110 is connected to the test piece. The first drive component 110 can drive the test piece to rotate around the azimuth axis D1.

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

[0064] like Figure 5 and Figure 6As shown, the first driving assembly 110 includes a first rotating member 111, and the first rotating member 111 can rotate. The first rotating member 111 can rotate around the azimuth axis D1. The axial direction of the first rotating member 111 is parallel to the azimuth axis D1. The first rotating member 111 can rotate around the axial direction of the first rotating member 111. The rotation of the first rotating member 111 can drive the test piece to rotate. The first rotating member 111 can rotate around the azimuth axis D1, and then can drive the test piece to rotate around the azimuth axis D1. For example, the rotation of the first rotating member 111 around the azimuth axis D1 can perform yaw tests on the test piece. 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 around 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 around the axis direction of the first axial portion 131. The first axial portion 131 and the first radial portion 132 rotate around the axis 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 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 can rotate around the azimuth axis D1. The first radial portion 132 can rotate around 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 is rotatably connected to the first fixing member 112. The first fixing member 112 is constructed as a roughly hollow cylindrical structure. The first fixing member 112 can be fitted on the first rotating member 111. The first fixing member 112 is fitted on the outside of the first rotating member 111. The first fixing member 112 is fitted on the first axial portion 131. The first fixing member 112 is fitted on 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 relatively. The 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 relative to the first fixed member 112 about the azimuth axis D1. 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 relative to the first fixed member 112 about the azimuth axis D1.

[0067] like Figure 8 As shown, the first driving assembly 110 further includes a first rotating pipeline 115 and a first fixed pipeline 116, and the first rotating pipeline 115 and the first fixed pipeline 116 are in communication. The first fixed pipeline 116 is connected to the first fixing member 112. The first fixed pipeline 116 extends in 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 pipeline 116 extends in the radial direction of the first axial portion 131. The first fixed pipeline 116 is arranged on the outer surface of the first axial portion 131. The first rotating pipeline 115 is connected to the first rotating member 111. The first rotating pipeline 115 extends in the radial direction of the first rotating member 111. The radial direction of the first rotating member 111 is parallel to the length direction of the first radial portion 132. The first rotating pipeline 115 extends in the length direction of the first radial portion 132. The first rotating pipeline 115 is arranged on the outer surface of the first radial portion 132. Preferably, the first fixed pipeline 116 is in communication with an external oil source. The hydraulic oil of the external oil source can enter the first fixed pipeline 116. The hydraulic oil in the first fixed pipeline 116 can also flow back to the external oil source. The hydraulic oil of 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 delivers hydraulic oil to the second drive assembly 140 through the first rotating member 111. The second drive assembly 140 is connected to the test piece. The second drive assembly 140 can drive the test piece to rotate around the pitch axis D2.

[0069] In this way, the external oil source connected to the first fixed pipeline 116 will not rotate, and the hydraulic oil in the first rotating pipeline 115 enters the second driving assembly 140. The second driving assembly 140 will not rotate relative to the first rotating pipeline 115. The second driving assembly 140 and the first rotating pipeline 115 rotate synchronously, thereby preventing the pipelines from being entangled or broken.

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

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

[0072] The second rotating member 141 includes a second axial portion 158 and a second radial portion 159, and the second axial portion 158 and the second radial portion 159 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 can rotate around the pitch axis D2. The second radial portion 159 can rotate around the pitch axis D2.

[0073] The second drive assembly 140 further includes a second fixing member 142, which is connected to the second rotating member 141. The second rotating member 141 is rotatably connected to the second fixing member 142. The second fixing member 142 is configured as a substantially hollow cylindrical structure. The second fixing member 142 can be fitted on the second rotating member 141. The second fixing member 142 is fitted on the outside of the second rotating member 141. The second fixing member 142 is fitted on the second axial portion 158. The second fixing member 142 is fitted on 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 relative to the second fixed member 142 about the pitch axis D2. A third bearing 152 is provided between the second fixed member 142 and the second rotating member 141. The third bearing 152 enables the second rotating member 141 to rotate relative to the second fixed member 142. The second radial portion 159 is rotatable relative to the second fixed member 142 about the pitch axis D2.

[0075] The second fixed member 142 is connected to the first rotating member 111. The hydraulic oil delivered by the first rotating member 111 can flow to the second fixed member 142. The second drive assembly 140 also includes a second rotating pipeline 145 and a second fixed pipeline 146, and the second rotating pipeline 145 and the second fixed pipeline 146 are connected. Preferably, the second fixed pipeline 146 is connected to the first rotating pipeline 115. The hydraulic oil in the first rotating pipeline 115 can enter the second fixed pipeline 146. The hydraulic oil in the second fixed pipeline 146 can also flow back to the first rotating pipeline 115. The hydraulic oil in the first rotating pipeline 115 can enter the second rotating pipeline 145 through the second fixed pipeline 146. The second rotating pipeline 145 can also flow back to the first rotating pipeline 115 through the second fixed pipeline 146. Figure 1 As shown, the three-axis non-magnetic simulation turntable 100 also includes a third drive assembly 170, and the third drive assembly 170 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 delivers hydraulic oil to the third drive assembly 170 through the second rotating member 141. The third drive assembly 170 is connected to the test piece. The third drive assembly 170 can drive the test piece 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 tests such as roll on the test piece. The first drive assembly 110, the second drive assembly 140 and the third drive assembly 170 are combined to jointly perform tests such as yaw, pitch and / or roll on the test piece.

[0076] Thus, the hydraulic oil in the second rotating pipeline 145 enters the third driving assembly 170. The third driving assembly 170 does not rotate relative to the second rotating pipeline 145. The third driving assembly 170 and the second rotating pipeline 145 rotate synchronously, thereby preventing the pipelines from being entangled or broken.

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

[0078] The third driving assembly 170 includes a third rotating member 172, and the third rotating member 172 rotates around the rolling axis D3. The third rotating member 172 is used to connect the test piece so that the test piece rotates around the rolling axis D3. The third rotating member 172 can perform rolling and other tests on the test piece. The test piece is fixed to the third rotating member 172. The rolling axis D3 is parallel to the thickness direction of the third rotating member 172. The third rotating member 172 and the test piece rotate around the rolling axis D3.

[0079] The third drive assembly 170 is connected to the second drive assembly 140. The second rotating pipeline 145 is connected to the third drive assembly 170. The hydraulic oil of the second drive assembly 140 can enter the third drive assembly 170. The hydraulic oil of the third drive assembly 170 can also flow back to the second drive assembly 140. The hydraulic oil of the second drive assembly 140 can enter the third drive assembly 170 through the second rotating pipeline 145. The third drive assembly 170 can also flow back to the second drive assembly 140 through the second rotating pipeline 145. The hydraulic oil of the second drive assembly 140 can enter the third drive assembly 170 through one second rotating pipeline 145. The hydraulic oil in the third drive assembly 170 can flow back to the second drive assembly 140 through another second rotating pipeline 145.

[0080] The first drive assembly 110 can drive the second drive assembly 140 to rotate. The first drive assembly 110 can rotate around the azimuth axis together with the second drive assembly 140. The second drive assembly 140 can rotate around the azimuth axis together with the third drive assembly 170. 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 can rotate around the pitch axis together with the third drive assembly 170. 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 piece to rotate. The third drive assembly 170 can rotate around the roll axis together with the test piece. The third drive assembly 170 can drive the test piece to rotate around the roll axis. According to the three-axis non-magnetic simulation turntable 100 of the present application, the three-axis non-magnetic simulation turntable 100 includes a first drive component 110, a second drive component 140 and a third drive component 170, the first drive component 110 is made of non-magnetic material, the first drive component 110 includes a first rotating member 111, a first fixed member 112, a first rotating pipeline 115 and a first fixed pipeline 116, the first fixed member 112 is sleeved on the outside of the first rotating member 111, the first rotating member 111 can rotate relative to the first fixed member 112, the first rotating member 111 is provided with a first rotating pipeline 115, the first fixed member 112 is provided with a first fixed pipeline 116, the first rotating pipeline 115 and the first fixed pipeline 116 are connected, and the first fixed pipeline 116 is connected to an external oil source; the second drive component 140 is made of non-magnetic material, the second drive component 140 is connected to the first rotating member 111, the second drive component 140 includes a second rotating member 141, a second fixed member 142, a first rotating pipeline 115 and a first fixed pipeline 116 The second rotating pipeline 145 and the second fixed pipeline 146, the second fixed member 142 is sleeved on the outside of the second rotating member 141, the second rotating member 141 can rotate relative to the second fixed member 142, the second rotating member 141 is provided with a second rotating pipeline 145, the second fixed member 142 is provided with a second fixed pipeline 146, the second rotating pipeline 145 and the second fixed pipeline 146 are communicated, and the second fixed pipeline 146 is communicated with the first rotating pipeline 115; the third driving assembly 170 is made of non-magnetic material, the third driving assembly 170 is connected to the second rotating member 141, the second rotating pipeline 145 is connected to the third driving assembly 170, the third driving assembly 170 includes a third rotating member 172, and the third rotating member 172 is used to connect the test piece; the first driving assembly 110 drives the second driving assembly 140 to rotate around the azimuth axis, the second driving assembly 140 drives the third driving assembly 170 to rotate around the pitch axis, and the third driving assembly 170 drives the test piece to rotate around the roll axis.Therefore, the first drive component 110, the second drive component 140 and the third drive component 170 are all made of non-magnetic materials to avoid magnetic field interference and ensure the accuracy of the test results. The first drive component 110, the second drive component 140 and the third drive component 170 can drive the test piece to rotate, so that the test piece simulates the movement of three degrees of freedom of yaw, pitch and roll. The first rotating pipeline 115, the first fixed pipeline 116, the second fixed pipeline 146 and the second rotating pipeline 145 will not be entangled, nor will they break due to rotation.

[0081] like Figure 5 As shown, the first drive assembly 110 also includes a first drive member 113, and the first drive member 113 can output power. The first drive member 113 is used to provide a rotational torque to the first drive assembly 110. The first drive member 113 can be a hydraulic motor, which is 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 do work. The first drive member 113 includes a first output shaft, and the axial direction of the first output shaft is parallel to the azimuth axis D1. The first output shaft rotates around the azimuth axis D1.

[0082] The first rotating member 111 is connected to the first driving member 113, and the first rotating member 111, the first fixing member 112 and the first driving member 113 can be connected in the same axial direction. 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 first rotating member 111 rotates to drive 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 around the azimuth axis. The first driving member 113 drives the first rotating member 111 to rotate around the azimuth axis. The first driving member 113 drives the first axial portion 131 to rotate around the azimuth axis D1.

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

[0084] like Figure 8 As shown, the second driving member 143 is connected to the first rotating pipeline 115. The second driving member 143 is connected to the first rotating pipeline 115. The first rotating pipeline 115 is arranged outside the second driving member 143. The second driving member 143 is connected to the first rotating pipeline 115 through an interface. The hydraulic oil of the first rotating pipeline 115 can enter the second driving member 143. The hydraulic oil in the second driving member 143 can also flow back to the first rotating pipeline 115. The first driving assembly 110 includes at least two first rotating pipelines 115, one first rotating pipeline 115 is connected to the second driving member 143, and the other first rotating pipeline 115 is connected to the second fixed member 142. The hydraulic oil in the first rotating member 111 can flow to the second driving member 143 through one first rotating pipeline 115. The hydraulic oil in the first rotating member 111 can flow to the second fixed member 142 through another first rotating pipeline 115.

[0085] The first rotating pipeline 115 provides hydraulic oil to the second driving member 143 and the second fixing member 142. The hydraulic oil of the first rotating pipeline 115 can flow into the second driving member 143 and the second fixing member 142 respectively. The hydraulic oil of the second driving member 143 and the second fixing member 142 can flow back to the first rotating pipeline 115.

[0086] The third driving assembly 170 is located between the second driving member 143 and the second rotating member 141. The second driving member 143 is connected to the second rotating member 141 through the third driving assembly 170. The third driving assembly 170 is fixedly connected to the second rotating member 141. The rotation of the second driving member 143 drives the third driving assembly 170 to rotate. The second driving member 143 and the third driving assembly 170 are coaxially connected. The second driving member 143 drives the third driving assembly 170 to rotate, so as to drive the second rotating member 141 to rotate synchronously. The rotation direction of the second driving member 143 is parallel to the rotation direction of the third driving assembly 170. The second driving member 143 rotates around the pitch axis. The third driving assembly 170 rotates around the pitch axis. The second driving member 143 drives the third driving assembly 170 to rotate around the pitch axis.

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

[0088] The third driving assembly 170 includes a third driving member 171, which can drive the third rotating member 172 to rotate. The third driving member 171 can drive the third rotating member 172 to rotate around the roll axis. The third driving member 171 can output power. The third driving member 171 is used to provide a torque to the third driving assembly 170. The third driving member 171 can be a hydraulic motor made of non-magnetic material. The third driving member 171 can drive the third rotating member 172 to rotate around the roll axis. The third driving member 171 includes a third output shaft, and the axial direction of the third output shaft is parallel to the roll axis. The third driving member 171 is connected to the second rotating pipeline 145. The hydraulic oil output by the second driving assembly 140 can flow to the third driving member 171, so that the third driving member 171 can do work. Specifically, the hydraulic oil output by the second rotating pipeline 145 of the second driving assembly 140 can flow to the third driving member 171. The third rotating member 172 is fixed to the third output shaft of the third driving member 171. The third driving member 171 is coaxially connected to the third rotating member 172. The rotation of the third driving member 171 can drive the third rotating member 172 to rotate, thereby driving the measured object to rotate.

[0089] The third driving assembly 170 can rotate together with the second driving assembly 140 around the azimuth axis. The third driving assembly 170 can rotate together with the second rotating member 141 around the pitch axis. The third rotating member 172 can rotate together with the second driving assembly 140 around the azimuth axis. The third rotating member 172 and the second rotating member 141 can rotate together around the pitch axis. The third rotating member 172 can rotate around the roll axis relative to the second rotating member 141. The third rotating member 172 can rotate around the roll axis relative to the first rotating member 111.

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

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

[0092] The second driving assembly 140 further includes a second connecting member 144, which is connected to the second rotating member 141. The second connecting member 144 is fixed to the second rotating member 141. The second connecting member 144 is sleeved on the outside of the second rotating member 141. The second connecting member 144 is connected to the second driving member 143. The second driving member 143 drives the second connecting member 144 to rotate, thereby driving the second rotating member 141 to rotate. The second connecting member 144 is coaxially connected to the second rotating member 141, and the rotation direction of the second rotating member 141 is parallel to the rotation direction of the second connecting member 144. The second connecting member 144 rotates around the pitch axis. The axial direction of the second output shaft of the second driving member 143 is parallel to the axial direction of the second connecting member 144. The second driving member 143 drives the second rotating member 141 to rotate by driving the second connecting member 144 to rotate around the pitch axis. The second connecting member 144 drives the second rotating member 141 to rotate around the pitch axis.

[0093] The second connecting member 144 is located between the third driving assembly 170 and the second rotating member 141. The third driving assembly 170 is located between the second driving member 143 and the second connecting member 144. The second driving member 143 is fixedly connected to the third driving assembly 170. The third driving 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 second driving member 143 rotates to drive the third driving assembly 170 and the second rotating member 141 to rotate. The second driving member 143 is coaxially connected to the third driving assembly 170. The third driving assembly 170 is coaxially connected to the second rotating member 141. The rotation direction of the second driving member 143 is parallel to the rotation direction of the third driving assembly 170. The rotation direction of the third driving assembly 170 is parallel to the rotation direction of the second rotating member 141. The second driving member 143 rotates around the pitch axis. The third driving assembly 170 rotates around the pitch axis. The second rotating member 141 rotates around the pitch axis. The second driving member 143 drives the third driving assembly 170 and the second rotating member 141 to rotate around the pitch axis. The third driving assembly 170 also includes a third connecting member 173, which is connected between the second driving member 143 and the second rotating member 141. The second connecting member 144 is located between the third connecting member 173 and the second rotating member 141. The third connecting member 173 is constructed as a frame structure. The third connecting member 173 is fixedly connected to the second driving member 143. The third connecting member 173 is fixedly connected to the second connecting member 144. The second connecting member 144 is fixedly connected to the second rotating member 141. The second driving member 143 drives the third connecting member 173 to rotate around the pitch axis. The third connecting member 173 is installed with the third driving member 171. The third connecting member 173 is coaxially connected to the third driving member 171. The third connecting member 173 drives the third driving member 171 to rotate. The third connecting member 173 is arranged outside the third driving member 171 and the third rotating member 172, and plays a fixing role for the third driving assembly 170 as a whole. The third connecting member 173 is connected to the third driving member 171. The third connecting member 173 has a cylindrical structure. When the third driving member 171 rotates around the pitch axis, the third rotating member 172, the third connecting member 173 and the third pipeline 174 rotate around the pitch axis together. The third pipeline 174 is located inside the third connecting member 173. Therefore, the second connecting member 144 and the third connecting member 173 will not rotate relative to each other, so as to avoid the third pipeline 174 from being entangled or broken.

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

[0095] The first fixed member 112 is mounted on the outside of the first rotating member 111. The hydraulic oil in the first fixed member 112 can flow to the first rotating member 111. The first rotating pipeline 115 can rotate together with the first rotating member 111. The rotation direction of the first rotating pipeline 115 is parallel to the rotation direction of the first rotating member 111. The first rotating pipeline 115 rotates around the azimuth axis. In order to prevent the leakage of the hydraulic oil, the first driving component 110 also includes a first sealing ring 120, and the first sealing ring 120 is located between the first fixed member 112 and the first rotating member 111. In this way, the hydraulic oil in the first fixed member 112 can be prevented from leaking.

[0096] As an optional embodiment, a plurality of first fixed annular grooves 125 are provided on the inner wall of the first fixed member 112. The plurality of first fixed annular grooves 125 are provided at different positions on the first fixed member 112. The plurality of first fixed annular grooves 125 are arranged along the axial direction of the first fixed member 112. The axial direction of the first fixed member 112 is parallel to the rotational axis direction of the first rotating member 111. The plurality of first fixed annular grooves 125 are arranged along the rotational axis direction of the first rotating member 111. The first fixed annular groove 125 is configured as a substantially circular ring. The axial direction of the first fixed annular groove 125 is parallel to the azimuth axis. The axial direction of the first fixed annular groove 125 is parallel to the axial direction of the first rotating member 111. The first fixed annular groove 125 extends along the rotational direction of the first rotating member 111. The first fixed annular groove 125 extends around the axial direction of the first rotating member 111. The extension direction of the first fixed annular groove 125 is parallel to the rotational direction of the first rotating member 111. The first fixed annular groove 125 is arranged around the first rotating member 111. The first fixing annular groove 125 is disposed around the first axial portion 131 .

[0097] Combination Figure 5As shown, the first fixed pipeline 116 is connected to the first fixed member 112. The first fixed pipeline 116 is located outside the first fixed member 112. The first fixed pipeline 116 can be connected to the first fixed member 112 through an interface. The first fixed pipeline 116 is connected to the first fixed annular groove 125. A first fixed communication path 126 may be provided in the first fixed member 112. The first fixed pipeline 116 is connected to the first fixed annular groove 125 through the first fixed communication path 126. The first fixed communication path 126 is located between the first fixed pipeline 116 and the first fixed annular groove 125. The extension direction of the first fixed communication path 126 is parallel to the radial direction of the first rotating member 111. The first fixed communication path 126 connects the first fixed pipeline 116 and the first fixed annular groove 125. The hydraulic oil in the first fixed pipeline 116 can enter the first fixed annular groove 125 through the first fixed communication path 126. The hydraulic oil of the external oil source can enter the first fixed member 112 through the first fixed pipeline 116. The hydraulic oil in the external oil source can enter the first fixed annular groove 125 inside the first fixing member 112. The hydraulic oil in the external oil source can enter the first fixed annular groove 125 inside the first fixing member 112 through the first fixed pipeline 116 and the first fixed communication passage 126.

[0098] like Figure 4 As shown, a plurality of first rotating communication passages 129 are provided in the first rotating member 111, and a plurality of first rotating pipelines 115 are respectively connected to the plurality of first rotating communication passages 129. The first rotating communication passages 129 rotate together with the first rotating member 111. The first rotating pipeline 115 is connected to the first fixed annular groove 125 through the first rotating communication passages 129. A plurality of first fixed annular grooves 125 are provided inside the first fixed member 112. The plurality of first rotating communication passages 129 are connected to the plurality of first fixed annular grooves 125 and correspond to each other one by one. The first rotating communication passage 129 is kept in communication with the first fixed annular groove 125. The first rotating communication passage 129 is connected to the first fixed annular groove 125 along the radial direction of the first rotating member 111. The first rotating communication passage 129 corresponds to the first fixed annular groove 125 along the radial direction of the first rotating member 111. When the first rotating member 111 rotates, the first rotating communication passage 129 is kept in communication with the first fixed annular groove 125.

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

[0100] The first fixed pipeline 116 includes a first fixed oil inlet pipeline and a first fixed oil outlet pipeline. The first fixed oil inlet pipeline and the first fixed oil outlet pipeline are arranged in parallel. The first fixed oil inlet pipeline and the first fixed oil outlet pipeline are both connected to the first fixed member 112. The first rotating pipeline 115 includes a first rotating oil inlet pipeline and a first rotating oil outlet pipeline. The first rotating oil inlet pipeline and the first rotating oil outlet pipeline are arranged in parallel. The first rotating oil inlet pipeline and the first rotating oil outlet pipeline are both connected to the first rotating member 111. 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. Hydraulic oil from an external oil source can enter the first rotating oil inlet pipeline through the first fixed oil inlet pipeline. The external oil source enters the first rotating member 111 through the first fixed member 112. 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. The hydraulic oil in the first rotating oil outlet pipeline can flow back to the external oil source through the first fixed oil outlet pipeline. The hydraulic oil in the first rotating member 111 flows back to the external oil source through the first fixed member 112.

[0101] In this way, the first rotating connecting passage 129 and the first fixed annular groove 125 always remain connected when the first rotating member 111 rotates, and the first fixed annular groove 125 extends along the rotation direction of the first rotating member 111, thereby preventing the first rotating connecting passage 129 and the first fixed annular groove 125 from being entangled with each other, and also preventing the first rotating pipeline 115 and the first fixed pipeline 116 from being affected by other structures and being broken.

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

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

[0104] The first rotating pipeline 115 is connected to the second fixed pipeline 146. The first rotating pipeline 115 is in communication with the second fixed pipeline 146. The connection methods of the first rotating pipeline 115 and the second fixed pipeline 146 may include threaded connection, flange connection, welding connection, socket connection or ferrule connection. In the present embodiment, the connection methods of the first rotating pipeline 115 and the second fixed pipeline 146 include but are not limited to the above methods, and the first rotating pipeline 115 and the second fixed pipeline 146 are fixedly connected to each other, which is a connection method that meets the requirements. The hydraulic oil of the first fixed pipeline 116 can enter the second fixed pipeline 146. The hydraulic oil of the second fixed pipeline 146 can also enter the first fixed pipeline 116. Of course, the first rotating pipeline 115 and the second fixed pipeline 146 can be constructed as one body, and the first rotating pipeline 115 and the second fixed pipeline 146 can be in communication.

[0105] The second fixed pipeline 146 can be connected to the second fixed member 142 through an interface. The hydraulic oil in the second fixed pipeline 146 can enter the second fixed member 142. In order to prevent the leakage of the hydraulic oil, the second driving assembly 140 further includes a second sealing ring 149, and the second sealing ring 149 is located between the second fixed member 142 and the second rotating member 141. In this way, the hydraulic oil in the second fixed member 142 can be prevented from leaking.

[0106] As an optional embodiment, a plurality of second fixing ring grooves 154 are provided on the inner wall of the second fixing member 142. The plurality of second fixing ring grooves 154 are provided at different positions on the second fixing member 142. The plurality of second fixing ring grooves 154 are arranged along the rotation axis direction of the second rotating member 141. The axial direction of the second fixing member 142 is parallel to the rotation axis direction of the second rotating member 141. The plurality of second fixing ring grooves 154 are arranged along the rotation axis direction of the second rotating member 141. The second fixing pipeline 146 is connected to the second fixing ring groove 154. The second fixing ring groove 154 is configured to be roughly annular. The axial direction of the second fixing ring groove 154 is parallel to the pitch axis. The axial direction of the second fixing ring groove 154 is parallel to the axial direction of the second rotating member 141. The second fixing ring groove 154 extends along the rotation direction of the second rotating member 141. The second fixing ring groove 154 extends around the axial direction of the second rotating member 141. The extension direction of the second fixing ring groove 154 is parallel to the rotation direction of the second rotating member 141. The second fixing annular groove 154 is disposed around the second rotating member 141. The second fixing annular groove 154 is disposed around the second axial portion 158.

[0107] The second fixed pipeline 146 is connected to the second fixed member 142. The second fixed pipeline 146 is located outside the second fixed member 142. The second fixed pipeline 146 can be connected to the second fixed member 142 through an interface. The second fixed pipeline 146 is communicated with the second fixed annular groove 154. A second fixed communication path 155 may be provided in the second fixed member 142. The second fixed pipeline 146 is connected to the second fixed annular groove 154 through the second fixed communication path 155. The second fixed communication path 155 is located between the second fixed pipeline 146 and the second fixed annular groove 154. The extension direction of the second fixed communication path 155 is parallel to the radial direction of the second rotating member 141. The second fixed communication path 155 communicates with the second fixed pipeline 146 and the second fixed annular groove 154. The hydraulic oil in the second fixed pipeline 146 can enter the second fixed annular groove 154 through the second fixed communication path 155. The hydraulic oil of the second fixed pipeline 146 can enter the second fixed annular groove 154 through the second fixed communication path 155. The hydraulic oil in the second fixing line 146 can flow into the second fixing annular groove 154 inside the second fixing member 142 .

[0108] A plurality of second rotating communication paths 157 are provided in the second rotating member 141, and a plurality of second rotating pipelines 145 are respectively connected to the plurality of second rotating communication paths 157. The second rotating communication paths 157 rotate together with the second rotating member 141. The second rotating communication paths 157 are connected to the second fixed annular groove 154. A plurality of second fixed annular grooves 154 are provided inside the second fixed member 142. The second rotating communication paths 157 are connected to the second fixed annular grooves 154 and correspond to each other one by one. The second rotating pipeline 145 is connected to the second fixed annular groove 154. The second rotating pipeline 145 is connected to the second fixed annular groove 154 along the radial direction of the second rotating member 141. The second rotating pipeline 145 corresponds to the second fixed annular groove 154 along the radial direction of the second rotating member 141. When the second rotating member 141 rotates, the second rotating communication path 157 is always connected to the second fixed annular groove 154. The hydraulic oil in the second fixed pipeline 146 enters the second fixed annular groove 154 through the second fixed communication path 155. The hydraulic oil in the second fixed annular groove 154 enters the second rotating communication 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. The second fixed oil inlet pipeline and the second fixed oil outlet pipeline are both 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. The second rotating oil inlet pipeline and the second rotating oil outlet pipeline are both 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. The hydraulic oil of the first rotating pipeline 115 can enter the second fixed pipeline 146. The hydraulic oil of the first rotating oil inlet pipeline can enter the second fixed oil inlet pipeline. The hydraulic oil of the second fixed pipeline 146 can enter the first rotating pipeline 115. The second fixed oil outlet pipeline is connected to the first rotating oil outlet pipeline. The hydraulic oil in the second fixed oil outlet pipeline can enter the first rotating oil outlet pipeline.

[0110] The second fixed pipeline 146 is connected to the second rotating member 141 through the second fixed member 142. 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 hydraulic oil of the second fixed pipeline 146 can enter the second rotating oil inlet pipeline through the second fixed oil inlet pipeline. The hydraulic oil of the first rotating member enters the second rotating member through the second fixed member. 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. The 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. The hydraulic oil of the second rotating member enters the first rotating member through the second fixed member.

[0111] In this way, the second rotating connecting path 157 and the second fixed annular groove 154 always remain connected when the second rotating member 141 rotates, and the second fixed annular groove 154 extends along the rotation direction of the second rotating member 141, thereby preventing the second rotating connecting path 157 and the second fixed annular groove 154 from being entangled together, and also preventing the first rotating pipeline 115 and the first fixed pipeline 116 from being affected by other structures and being broken.

[0112] The third drive assembly 170 further includes a third pipeline 174, which is connected to the third drive member 171. The third pipeline 174 can rotate together with the third drive member 171. The third pipeline 174 can rotate together with the third drive member 171 around the pitch axis. The third pipeline 174 can rotate together with the third drive member 171 around the azimuth axis. The third pipeline 174 is connected to the third drive member 171. The third pipeline 174 is also connected to the second rotation pipeline 145. The second rotation pipeline 145 can transport hydraulic oil to the third drive member 171 through the third pipeline 174. The hydraulic oil of the second rotation pipeline 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 pipeline 145. The second rotation pipeline 145 can transport hydraulic oil to the third drive member 171. The hydraulic oil of the second rotation pipeline 145 can enter a third drive member 171 through a third pipeline 174. The hydraulic oil in another third driving member 171 can flow back to the second rotating pipeline 145 through another third pipeline 174. The third pipeline 174 rotates around the roll axis. The roll axis is perpendicular to the pitch axis. The first driving assembly 110 also includes a first annular disk 118 and a first anti-rotation seat 117. The first annular disk 118 is fixedly connected to the first fixing member 112. The first annular disk 118 and the first fixing member 112 are fixed together by a connecting member. The first annular disk 118 is fixedly connected to the first anti-rotation seat 117. The first annular disk 118 and the first anti-rotation seat 117 are fixed together by a connecting member. The first fixing member 112 is fixed relative to the first annular 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 driving assembly 110. The base 119 is a bottom member supporting the first driving 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 to prevent the first anti-rotation seat 117 from rotating. The base 119 is connected to the first fixed member 112 through the first anti-rotation seat 117 and the first ring disk 118. The first fixed member 112 is fixedly connected to the base 119 supporting the first drive assembly 110. The first fixed member 112 is fixedly connected to the base 119 through the first ring disk 118 and the first anti-rotation seat 117. The first rotating member 111 can rotate relative to the base 119. The first fixed pipeline 116 is fixed relative to the base 119. The first rotating pipeline 115 can rotate relative to the base 119.

[0113] like Fig. 9As shown, the three-axis non-magnetic simulation turntable 100 also includes a first limit member 121 and a first matching member 122. The first limit member 121 and the first matching member 122 are used to limit the rotation angle of the first drive assembly 110. The first limit member 121 is connected to the first rotating member 111. The first matching member 122 is connected to the first fixed member 112. The first matching member 122 limits the rotational displacement of the first limit member 121, thereby limiting the rotational displacement of the first rotating member 111. The first limit member 121 is fixed to the first connecting member 114. The first matching member 122 is fixed to the base 119. The rotation of the first connecting member 114 drives the first limit member 121 to rotate. The first matching member 122 is fixed relative to the base 119. The first matching member 122 limits the rotational displacement of the first limit member 121. The first limit member 121 is located at the rotation +48° and -48° 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 matching 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. The first bearing 123 is arranged between the first fixing member 112 and the first rotating member 111. The second bearing 124 is arranged between the first driving member 113 and the base 119. The second bearing 124 is arranged between the first output shaft of the first driving member 113 and the base 119. The second bearing 124 enables the first output shaft to rotate relative to the base 119. The first bearing 123 and the second bearing 124 are both made of non-magnetic materials to avoid generating a magnetic field.

[0115] The second drive assembly 140 also includes a second ring disk 148 and a second anti-rotation seat 147, and the second ring disk 148 is fixedly connected to the second fixing member 142. The second ring disk 148 and the second fixing member 142 are fixed together by a connecting member. The second ring disk 148 is fixedly connected to the second anti-rotation seat 147. The second ring disk 148 and the second anti-rotation seat 147 are fixed together by a connecting member. The second fixing member 142 is fixed relative to the second ring disk 148 and the second anti-rotation seat 147. The 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 to ensure 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 limit member 150 and a second matching member 151. The second limit member 150 and the second matching member 151 are used to limit the rotation angle of the second drive assembly 140. The second limit member 150 is connected to the second rotating member 141. The second matching member 151 is connected to the second fixed member 142. The second matching member 151 limits the rotational displacement of the second limit member 150, thereby limiting the rotational displacement of the second rotating member 141. The second limit member 150 is fixed to the third drive assembly 170. The second limit member 150 is connected to the second rotating member 141 through the third drive assembly 170. The second matching member 151 is fixed to the outer shell of the second fixed member 142. The rotation of the second drive assembly 140 drives the second limit member 150 to rotate. The second matching member 151 is fixed relative to the second fixed member 142. The second matching member 151 limits the rotational displacement of the second limit member 150. The second stopper 150 is located at the +48° and -48° positions of the second connecting member 144. When the second driving assembly 140 rotates to the +48° and -48° positions, the second stopper 150 and the second matching member 151 abut against each other, and the second stopper does not move further, so that the second rotating member 141 does not move further, thereby realizing precise control of the rotation of the second driving assembly 140.

[0117] The three-axis non-magnetic simulation turntable 100 further 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. The third bearing 152 and the fourth bearing 153 are both made of non-magnetic materials to avoid generating a magnetic field.

[0118] like Figure 7 As shown, a portion of the third pipeline 174 is located in the second connecting member 144, and another portion of the third pipeline 174 is located in the third connecting member 173. The second connecting member 144 is fixedly connected to the third connecting member 173. The rotation of the third connecting member 173 drives the second connecting member 144 to rotate, thereby driving the second rotating member 141 to rotate.

[0119] like Figure 6As shown, the three-axis non-magnetic simulation turntable 100 also includes a third limiter and a third matching member. The third limiter and the third matching member are used to limit the rotation angle of the third drive assembly 170. The third limiter is connected to the third rotating member 172. The third matching member is connected to the third connecting member 173. The third matching member limits the rotational displacement of the third limiter, thereby limiting the rotational displacement of the third rotating member 172. The third limiter is fixed to the third output shaft of the third driving member 171. The third limiter is connected to the third rotating member 172 through the third driving member 171. The third matching member is fixed to the third connecting member 173. The rotation of the third output shaft of the third driving member 171 drives the third limiter to rotate. The third matching member limits the rotational displacement of the third limiter, thereby limiting the rotational displacement of the third rotating member 172. The third limiter is located at the rotation +48° and -48° positions of the third driving member 171, respectively. When the third connecting member 173 rotates to the +48° and -48° positions respectively, the third limiting member and the third matching member counteract 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 driving assembly 170.

[0120] The three-axis non-magnetic simulation turntable 100 further includes a fifth bearing 177, which is made of non-magnetic material and is disposed between the third output shaft of the third driving member 171 and the third connecting member 173 to avoid generating a magnetic field.

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

[0122] In order to avoid uneven weight on both sides of the first connecting member 114, the three-axis non-magnetic simulation turntable 100 also includes a counterweight block, which is connected to the first connecting member 114. The counterweight block can also be connected to the second connecting member 144. The counterweight block is connected to the second fixing member 142 or the second driving member 143. The counterweight block can keep the first connecting member 114 balanced relative to the rotation center. The counterweight block can keep the second connecting member 144 balanced relative to the rotation center. In addition, in order to facilitate users to test products, the full range of product weight can be balanced. The balance of the shaft system is adjusted by the counterweight block, so that the rotation center of the third connecting member 173 is balanced, which is convenient for users to test products.

[0123] The first drive assembly 110 may also be provided with an encoder, an electrical limit and a mechanical limit. The encoder can limit the rotation angle of the first output shaft of the first drive member 113. The electrical limit can cut off the power input of the first drive member 113 and send an alarm signal when the proximity switch is actuated. The second drive assembly 140 may also be provided with an encoder, an electrical limit and a mechanical limit. The encoder can limit the rotation angle of the second output shaft of the second drive member 143. The electrical limit can cut off the power input of the second drive member 143 and send an alarm signal when the proximity switch is actuated. The third drive assembly 170 may also be provided with an encoder, an electrical limit and a mechanical limit. The encoder can limit the rotation angle of the third output shaft of the third drive member 171. The electrical limit can cut off the power input of the third drive member 171 and send an alarm signal when the proximity switch is actuated.

[0124] The three-axis non-magnetic simulation turntable 100 of the present application uses three hydraulic motors to drive the first rotating member 111, the second rotating member 141 and the third rotating member 172 to rotate respectively, and the pipeline design is used to ensure that the pipelines are not entangled with each other or broken due to the rotation of the frame.

[0125] The external oil source is connected to the first fixed pipeline 116 and does not rotate, and the hydraulic oil in the first rotating member 111 enters the second driving member 143 and the second fixed pipeline 146. The first rotating member 111 rotates synchronously with the first connecting member 114, thereby preventing the pipeline from being entangled or broken.

[0126] The first driving member 113 drives the first rotating member 111 and the first connecting member 114 to rotate synchronously. The first rotating pipeline 115 rotates along with it, and the first rotating pipeline 115 can be connected with the first fixed pipeline at all times when rotating. The first rotating pipeline 115 not only supplies oil to and returns oil to the second driving member 143, but also provides hydraulic oil to the second fixed pipeline 146. The two first rotating pipelines 115 are connected to the second driving member 143. The hydraulic oil in the second driving member 143 can also flow back to the first rotating pipeline 115. One of the two first rotating pipelines 115 supplies oil to the second driving member 143, and the hydraulic oil in the second driving member 143 flows back to the other of the two first rotating pipelines 115. The other two first rotating pipelines 115 are connected to the second fixed pipeline 146. The hydraulic oil in the second fixed pipeline 146 can also flow back to the first rotating pipeline 115. One of the other two first rotating pipelines 115 supplies oil to the second fixed pipeline 146 , and the hydraulic oil in the second fixed pipeline 146 flows back to the other one of the other two first rotating pipelines 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 arranged between the first part 133 and the second driving member 143. The second driving member 143 and the non-magnetic bearings are in the form of a coaxial set. A pair of non-magnetic angular contact bearings are arranged between the second part 134 and the second fixing member 142. The second fixing member 142 and the non-magnetic bearings are in the form of a coaxial set. In this way, the size of the second driving component 140 is reduced, ensuring that the turntable as a whole can enter the magnetic coil, and the simulation system is placed in the magnetic field for magnetization to check whether the magnetic field distortion meets the index requirements.

[0128] The third connecting member 173 is fixed to 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 annular disc 148 respectively. The second annular disc 148 is fixed to the second fixing member 142. The second fixing member 142 is supported by the second annular disc 148, the second anti-rotation seat 147 and the first connecting member 114. The hydraulic oil in the first rotating pipeline 115 is supplied to and returned 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, driving 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 and the first connecting member 114 remain relatively still. 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 be entangled or broken with each other.

[0130] A non-magnetic bearing is arranged between the third connecting member 173 and the third driving member 171, and the third connecting member 173, the third driving member 171 and the non-magnetic bearing are coaxially mounted. The third driving member 171 and the non-magnetic bearing are coaxially mounted. In this way, the size of the inner frame shaft system is reduced. The third driving member 171 drives the test piece on the third connecting member 173 to rotate.

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

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

[0133] The first drive assembly 110, the second drive assembly 140 and the third drive assembly 170 do not rotate continuously. The first drive assembly 110, the second drive assembly 140 and the third drive assembly 170 are all designed with a multi-level limit mechanism to ensure the safety of the platform. The first drive assembly 110, the second drive assembly 140 and the third drive assembly 170 can all include software limits, and the output shaft rotation angle is limited by an encoder. The first drive assembly 110, the second drive assembly 140 and the third drive assembly 170 are all provided with electrical limit and mechanical limit devices inside the machinery. The electrical limit adopts a proximity switch, and when the proximity switch is actuated, the power supply input of the drive is cut off and an alarm signal is issued. The mechanical limit adopts a stop block. When the software limit and the electrical limit fail, the mechanical stop block plays a limiting role. Of course, the oil pressure overload protection of the drive will also cut off the power input.

[0134] The motion range of the first drive assembly 110, the second drive assembly 140 and the third drive assembly 170 is -45° to +45°, the designed travel switch limit is -47° and +47°, and the mechanical hard limit is -48° and +48°.

[0135] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art in the technical field of this application. The terms used herein are only for describing specific implementation purposes and are not intended to limit this application. Terms such as "parts" and "pieces" appearing in this article may represent either a single part or a combination of multiple parts. Terms such as "installation" and "setting" appearing in this article may represent either a component being directly attached to another component or a component being attached to another component through an intermediate. Features described in this article in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0136] The present application has been described through the above-mentioned embodiments, but it should be understood that the above-mentioned embodiments are only for the purpose of example and description, and are not intended to limit the present application to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the present application is not limited to the above-mentioned embodiments, and more variations and modifications can be made according to the teachings of the present application, and these variations and modifications all fall within the scope of protection claimed by the present application. The scope of protection of the present application is defined by the attached 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 driving component (110), wherein the first driving component (110) is made of a non-magnetic material, the first driving component (110) comprises a first rotating member (111), a first fixed member (112), a first rotating pipeline (115) and a first fixed pipeline (116), the first fixed member (112) being mounted on the outside of the first rotating member (111), the first rotating member (111) being rotatable relative to the first fixed member (112), the first rotating member (111) being provided with the first rotating pipeline (115), the first fixed member (112) being provided with the first fixed pipeline (116), the first rotating pipeline (115) being in communication with the first fixed pipeline (116), and the first fixed pipeline (116) being in communication with an external oil source; a second driving component (140), wherein the second driving component (140) is made of a non-magnetic material, the second driving component (140) is connected to the first rotating member (111), the second driving component (140) comprises a second rotating member (141), a second fixing member (142), a second rotating pipeline (145) and a second fixing pipeline (146), the second fixing member (142) is sleeved on 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 pipeline (145), the second fixing member (142) is provided with a second fixing pipeline (146), the second rotating pipeline (145) and the second fixing pipeline (146) are in communication, and the second fixing pipeline (146) is in communication with the first rotating pipeline (115); a third driving assembly (170), wherein the third driving assembly (170) is made of a non-magnetic material, the third driving assembly (170) is connected to the second rotating member (141), the second rotating pipeline (145) is connected to the third driving assembly (170), and the third driving assembly (170) comprises a third rotating member (172), and the third rotating member (172) is used to connect to a test piece; 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 piece to rotate around the roll axis.

2. The three-axis non-magnetic simulation turntable according to claim 1, characterized in that: The first driving component (110) further comprises a first driving member (113), wherein the first driving member (113) drives the first rotating member (111) and the second driving component (140) to rotate, so as to drive the second driving component (140) and the first rotating member (111) to rotate synchronously, and the first driving member (113) is connected to an external oil source; The second driving assembly (140) further comprises a second driving member (143), wherein the second driving member (143) is connected to the second rotating member (141) via the third driving assembly (170), and the second driving member (143) drives the third driving assembly (170) to rotate, thereby driving the second rotating member (141) to rotate synchronously; The third driving assembly (170) comprises a third driving member (171), and the third driving member (171) 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 driving assembly (110) further comprises a first connecting member (114), wherein the first connecting member (114) connects the first rotating member (111) and the second fixed member (142), and the first rotating member (111) rotates through the first connecting member (114) to drive the second fixed member (142) to rotate around an azimuth axis.

4. The three-axis non-magnetic simulation turntable according to claim 2, characterized in that: The first driving assembly (110) further includes a first connecting member (114), the first connecting member (114) including a first portion and a second portion, the first portion and the second portion being arranged on both sides of the first rotating member (111), the first portion connecting the first rotating member (111) and the second fixing member (142), and the second portion connecting the first rotating member (111) and the second driving member (143).

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

6. The three-axis non-magnetic simulation turntable according to claim 2, characterized in that: The third driving assembly (170) further comprises a third connecting member (173), wherein the third connecting member (173) is connected between the second driving member (143) and the second rotating member (141), and the third driving member (171) is installed on the third connecting member (173).

7. The three-axis non-magnetic simulation turntable according to claim 1, characterized in that: The first fixing member (112) is sleeved on the outside of the first rotating member (111); a plurality of first fixing annular grooves (125) are provided on the inner wall of the first fixing member (112); the plurality of first fixing annular grooves (125) are arranged along the rotation axis direction of the first rotating member (111); and the first fixing pipeline (116) is in communication with the first fixing annular grooves (125); A plurality of first rotating communication passages (129) are provided in the first rotating member (111), the plurality of first rotating pipelines (115) are respectively connected to the plurality of first rotating communication passages (129), and the first rotating communication passages (129) are connected to the first fixed ring grooves (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), and 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 sleeved on the outside of the second rotating member (141); a plurality of second fixing annular grooves (154) are provided on the inner wall of the second fixing member (142); the plurality of second fixing annular grooves (154) are arranged along the rotation axis direction of the second rotating member (141); and the second fixing pipeline (146) is in communication with the second fixing annular grooves (154); A plurality of second rotating communication passages (157) are provided in the second rotating member (141); the plurality of second rotating pipes (145) are respectively connected to the plurality of second rotating communication passages (157); the second rotating communication passages (157) are connected to the second fixed ring 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, and 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 via the second fixed annular groove (154) and the second rotating connecting passage (157), and 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).

9. The three-axis non-magnetic simulation turntable according to claim 2, characterized in that: The first driving assembly (110) comprises at least two first rotating pipelines (115), one of the first rotating pipelines (115) is connected to the second driving member (143), and the other of the first rotating pipelines (115) 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 driving assembly (170) further comprises a third pipeline (174), wherein the third pipeline (174) is connected to the third driving member (171), and the third pipeline (174) is also in communication with the second rotating pipeline (145).

11. The three-axis non-magnetic simulation turntable according to claim 1, characterized in that: The first rotating member (111) comprises 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 around the axial direction of the first axial portion (131); the axial direction of the first axial portion (131) is parallel to the axial direction of the first rotating member (111); and 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 pipeline (116) is arranged on the outer surface of the first axial portion (131), and the first rotating pipeline (115) is arranged on the outer surface of the first radial portion (132); The first fixing member (112) is sleeved on the outside of the first axial portion (131), and the first fixing member (112) is fixedly connected to a base (119) supporting the first driving assembly (110).

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