Fixing device for S-shaped space torsion pipeline vibration impact test

Abstract

The invention relates to the technical field of aviation pipeline testing tools, in particular to a fixing device for an S-shaped space torsion pipeline vibration impact test. The fixing device comprises a rectangular bottom frame, a first supporting frame, a second supporting frame and a top end supporting frame. A rigid three-dimensional framework is formed by combining a modularized rectangular bottom frame, a first supporting frame, a second supporting frame, a top end supporting frame and a plurality of fixing pieces together. According to the framework, the corresponding fixing pieces are arranged at the multiple key point positions in the space respectively to fix the S-shaped space torsion pipeline, and all-dimensional and multi-point-position accurate clamping and fixing of the ends and the arm sections of the S-shaped space torsion pipeline are achieved. The real installation boundary of the S-shaped space torsion pipeline is perfectly reproduced, unexpected shaking and harmful local resonance of the S-shaped space torsion pipeline in the vibration impact test process are fundamentally restrained, and the authenticity of a vibration excitation transmission path and the accuracy of test boundary conditions are ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline test tooling for aviation, and particularly relates to a fixing device for S-shaped space torsion pipeline vibration impact test. BACKGROUND

[0002] The aircraft air conditioning pipeline system is a key system for ensuring the comfort and safety of the cabin environment. During the processes of take-off, cruising, landing and encountering turbulence, the pipeline system will continuously bear strong vibration and impact loads. These loads may cause pipeline fatigue cracks, joint loosening and even rupture, and thus serious safety accidents. Therefore, before installation, the pipeline must be strictly subjected to vibration impact test to verify its structural integrity and reliability.

[0003] At present, the traditional vibration impact test device mostly adopts a simple linear or planar support frame. When facing an S-shaped (may be a S-shaped, not necessarily a standard S-shaped structure) space torsion pipeline, due to the complex three-dimensional space trend of the S-shaped space torsion pipeline, the traditional linear or planar frame is difficult to match the spatial geometric form of the S-shaped space torsion pipeline, and cannot provide effective and stable support and fixation for each arm segment and end of the pipeline, which leads to the possibility of unexpected shaking or local resonance of the measured pipeline in the vibration impact test, thereby destroying the authenticity of the test boundary conditions. SUMMARY

[0004] The present application aims to provide a fixing device for S-shaped space torsion pipeline vibration impact test, and solve the problem that the traditional linear or planar frame is difficult to match the spatial geometric form of the S-shaped space torsion pipeline, and cannot provide effective and stable support and fixation for each arm segment and end of the pipeline, which leads to the possibility of unexpected shaking or local resonance of the measured pipeline in the vibration impact test, thereby destroying the authenticity of the test boundary conditions.

[0005] To achieve the above-mentioned purpose, the present application provides a fixing device for S-shaped space torsion pipeline vibration impact test, which comprises a rectangular bottom frame, a first support frame, a second support frame and a top end support frame. One side of the end of the rectangular bottom frame is fixedly provided with an extended square frame. The first support frame is installed on the upper surface of the rectangular bottom frame. The second support frame is installed on the upper surface of the extended square frame. The second support frame is connected with the side surface of the first support frame. The top end of the second support frame is provided with the top end support frame. The upper surface of the rectangular bottom frame away from the extended square is provided with a first end fixing member and a first arm segment fixing member. A second arm segment fixing member is provided on the side of the first support frame near the first end fixing member. Two third arm segment fixing members are provided on the top of the first support frame near the first end fixing member. Both third arm segment fixing members are located on the side of the first support frame near the extended square. A fourth arm segment fixing member is also provided on the upper surface of the second support frame. The fourth arm segment fixing member is located on the end of the second support frame away from the top support frame. A fifth arm segment fixing member is provided on the side wall of the top support frame near the fourth arm segment fixing member. A sixth arm segment fixing member and a second end fixing member are also provided on the top of the top support frame. The sixth arm segment fixing member is located on the end of the top support frame near the fourth arm segment fixing member. The second end fixing member is located on the side of the top support frame away from the first support frame. Both the first end fixing member and the second end fixing member are used to fix the end of the S-shaped spatial torsion pipeline; The first arm segment fixing component, the second arm segment fixing component, the two third arm segment fixing components, the fourth arm segment fixing component, the fifth arm segment fixing component, and the sixth arm segment fixing component all fix the key nodes of the arm segment of the S-shaped spatial torsion pipeline.

[0006] The first end fixing component includes a first base plate, a first mounting plate, and a first fixing pipe head. The first base plate is mounted on the upper surface of the rectangular bottom frame. The first mounting plate is vertically arranged on the upper surface of the first base plate. The first fixing pipe head is arranged on the side of the first mounting plate facing the extended frame. The first fixing pipe head is used to fix the end of the S-shaped spatial torsion pipe.

[0007] The second end fixing component includes a second base plate, a second mounting plate, and a second fixing pipe head. The second base plate is mounted on the upper surface of the top support frame. The second mounting plate is vertically arranged on the upper surface of the second base plate. The second fixing pipe head is arranged on the side of the second mounting plate facing the first end fixing component. The second fixing pipe head is arranged with an inclined structure and is used to fix the end of the S-shaped spatial torsion pipe.

[0008] The first arm segment fixing component includes a third base plate, a third mounting plate, and a first pipe clamp. The third base plate is mounted on the upper surface of the rectangular bottom frame, and the third mounting plate is vertically arranged on the upper surface of the third base plate. The first pipe clamp is arranged on the side of the third mounting plate facing the first support frame.

[0009] The second arm segment fixing component includes a first side plate, a fourth mounting plate, and a second pipe clamp. The first side plate is installed on the side wall of the first support frame, and the fourth mounting plate is inclinedly arranged on the first side plate. The second pipe clamp is arranged on the side of the fourth mounting plate facing the extension frame.

[0010] Each of the third arm segment fixing components includes a first top plate, a fifth mounting plate, and a third pipe clamp. The first top plate is installed on the top of the first support frame. The fifth mounting plate is vertically arranged on the upper surface of the first top plate. The top of the fifth mounting plate is arranged with an inclined structure. The third pipe clamp is arranged on the side of the top of the fifth mounting plate facing the ground.

[0011] The fourth arm segment fixing component includes a second top plate, a sixth mounting plate, and a fourth pipe clamp. The second top plate is installed on the top of the second support frame, the sixth mounting plate is vertically arranged on the upper surface of the second top plate, and the fourth pipe clamp is arranged on the side of the sixth mounting plate facing the first support frame.

[0012] The fifth arm segment fixing component includes a second side plate, a seventh mounting plate, and a fifth pipe clamp. The second side plate is installed on the side wall of the top fixing frame. The seventh mounting plate is inclinedly arranged on the second side plate. The fifth pipe clamp is arranged on the side of the seventh mounting plate away from the first support frame.

[0013] The sixth arm segment fixing component includes a third top plate, an eighth mounting plate, and a sixth pipe clamp. The third top plate is installed on the upper surface of the top fixing frame. The eighth mounting plate is vertically arranged on the upper surface of the third top plate. The sixth pipe clamp is arranged on the side of the eighth mounting plate away from the first support frame.

[0014] The first, second, third, fourth, fifth, and sixth pipe clamps are all used to fix the key nodes of the arm section of the S-shaped spatial torsion pipeline. The first, second, third, two fifth, sixth, seventh, and eighth mounting plates are all provided with oblique reinforcing plates.

[0015] This invention discloses a fixing device for vibration and impact testing of an S-shaped spatial torsion pipeline, comprising a rectangular bottom frame, a first support frame, a second support frame, and a top support frame. These modular components, along with multiple fixing members, form a rigid three-dimensional skeleton. The skeleton uses corresponding fixing members at multiple key points in space to secure the S-shaped spatial torsion pipeline, achieving precise clamping and fixing of the pipeline's ends and segments from all directions and at multiple points. This ensures effective and stable support for each segment and end of the tested S-shaped spatial torsion pipeline, perfectly replicating its actual installation boundaries. It fundamentally suppresses unexpected swaying and harmful local resonance of the S-shaped spatial torsion pipeline during vibration and impact testing, ensuring the authenticity of the vibration excitation transmission path and the accuracy of the test boundary conditions. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the fixing device for vibration and impact testing of S-shaped spatial torsion pipelines provided by the present invention.

[0018] Figure 2 This invention provides Figure 1 A magnified view of the local structure at point A.

[0019] Figure 3 This invention provides Figure 1 A magnified view of the local structure at point B.

[0020] Figure 4 This invention provides Figure 1 A structural diagram from another perspective.

[0021] Figure 5 This invention provides Figure 4 A magnified view of the local structure at point C.

[0022] 101-Rectangular bottom frame, 102-First support frame, 103-Second support frame, 104-Top support frame, 105-Extending square frame, 106-S-shaped spatial torsion pipe, 107-First base plate, 108-First mounting plate, 109-First fixed pipe end, 110-Second base plate, 111-Second mounting plate, 112-Second fixed pipe end, 113-Third base plate, 114-Third mounting plate, 115-First pipe 116-First side plate, 117-Fourth mounting plate, 118-Second pipe clamp, 119-First top plate, 120-Fifth mounting plate, 121-Third pipe clamp, 122-Second top plate, 123-Sixth mounting plate, 124-Fourth pipe clamp, 125-Second side plate, 126-Seventh mounting plate, 127-Fifth pipe clamp, 128-Third top plate, 129-Eighth mounting plate, 130-Sixth pipe clamp, 131-Angled reinforcing plate. Detailed Implementation

[0023] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0024] Please see Figures 1 to 5 This invention provides a fixing device for vibration and impact testing of an S-shaped spatial torsion pipeline. The fixing device includes a rectangular bottom frame 101, a first support frame 102, a second support frame 103, and a top support frame 104. An extension frame 105 is fixedly provided on one side of the end of the rectangular bottom frame 101. The first support frame 102 is installed on the upper surface of the rectangular bottom frame 101. The second support frame 103 is installed on the upper surface of the extension frame 105. The second support frame 103 is connected to the side of the first support frame 102. The top support frame 104 is provided at the top of the second support frame 103. The upper surface of the rectangular bottom frame 101 away from the extended frame 105 is provided with a first end fixing member and a first arm segment fixing member. The side of the first support frame 102 near the first end fixing member is provided with a second arm segment fixing member. The top of the first support frame 102 near the first end fixing member is provided with two third arm segment fixing members, both of which are located on the side of the first support frame 102 near the extended frame 105. The upper surface of the second support frame 103 is also provided with a fourth arm segment fixing member, which is located at the end of the second support frame 103 away from the top support frame 104. The side wall of the top support frame 104 near the fourth arm segment fixing member is provided with a fifth arm segment fixing member. The top of the top support frame 104 is also provided with a sixth arm segment fixing member and a second end fixing member, which is located at the end of the top support frame 104 near the fourth arm segment fixing member. The second end fixing member is located on the side of the top support frame 104 away from the first support frame 102. Both the first end fixing member and the second end fixing member are used to fix the end of the S-shaped spatial torsion pipe 106; The first arm segment fixing member, the second arm segment fixing member, the two third arm segment fixing members, the fourth arm segment fixing member, the fifth arm segment fixing member and the sixth arm segment fixing member all fix the key nodes of the arm segment of the S-shaped spatial torsion pipeline 106.

[0025] In this embodiment, a rigid three-dimensional skeleton is formed by modularly combining the rectangular bottom frame 101, the first support frame 102, the second support frame 103, the top support frame 104, and multiple fasteners. This skeleton has corresponding fasteners at multiple key points in space to fix the S-shaped spatial torsion pipe 106, achieving precise clamping and fixation of the ends and arms of the S-shaped spatial torsion pipe 106 from all directions and at multiple points. This ensures that each arm and end of the tested S-shaped spatial torsion pipe 106 receives effective and stable support, perfectly replicating its actual installation boundaries. This fundamentally suppresses unexpected shaking and harmful local resonance of the S-shaped spatial torsion pipe 106 during vibration and impact testing, ensuring the authenticity of the vibration excitation transmission path and the accuracy of the test boundary conditions.

[0026] Furthermore, the first end fixing member includes a first base plate 107, a first mounting plate 108, and a first fixing tube head 109. The first base plate 107 is mounted on the upper surface of the rectangular bottom frame 101. The first mounting plate 108 is vertically arranged on the upper surface of the first base plate 107. The first fixing tube head 109 is arranged on the side of the first mounting plate 108 facing the extended frame 105. The second end fixing member includes a second base plate 110, a second mounting plate 111, and a second fixing tube head 112. The second base plate 110 is mounted on the upper surface of the top support frame 104. The second mounting plate 111 is vertically arranged on the upper surface of the second base plate 110. The second fixing tube head 112 is arranged on the side of the second mounting plate 111 facing the first end fixing member. The second fixing tube head 112 is arranged with an inclined structure.

[0027] In this embodiment, both the first fixing pipe head 109 and the second fixing pipe head 112 are used to fix the end of the S-shaped spatial torsion pipe 106.

[0028] Furthermore, the first arm segment fixing component includes a third base plate 113, a third mounting plate 114, and a first pipe clamp 115. The third base plate 113 is mounted on the upper surface of the rectangular bottom frame 101. The third mounting plate 114 is vertically arranged on the upper surface of the third base plate 113. The first pipe clamp 115 is arranged on the side of the third mounting plate 114 facing the first support frame 102.

[0029] Furthermore, the second arm segment fixing component includes a first side plate 116, a fourth mounting plate 117, and a second pipe clamp 118. The first side plate 116 is mounted on the side wall of the first support frame 102, and the fourth mounting plate 117 is obliquely disposed on the first side plate 116. The second pipe clamp 118 is disposed on the side of the fourth mounting plate 117 facing the extension frame 105.

[0030] Furthermore, each of the third arm segment fixing components includes a first top plate 119, a fifth mounting plate 120, and a third pipe clamp 121. The first top plate 119 is installed on the top of the first support frame 102. The fifth mounting plate 120 is vertically arranged on the upper surface of the first top plate 119. The top of the fifth mounting plate 120 is arranged in an inclined structure. The third pipe clamp 121 is arranged on the side of the top of the fifth mounting plate 120 facing the ground.

[0031] Furthermore, the fourth arm segment fixing component includes a second top plate 122, a sixth mounting plate 123, and a fourth pipe clamp 124. The second top plate 122 is installed on the top of the second support frame 103. The sixth mounting plate 123 is vertically arranged on the upper surface of the second top plate 122. The fourth pipe clamp 124 is arranged on the side of the sixth mounting plate 123 facing the first support frame 102.

[0032] Furthermore, each of the fifth arm segment fixing components includes a second side plate 125, a seventh mounting plate 126, and a fifth pipe clamp 127. The second side plate 125 is mounted on the side wall of the top fixing frame, and the seventh mounting plate 126 is inclinedly arranged on the second side plate 125. The fifth pipe clamp 127 is arranged on the side of the seventh mounting plate 126 away from the first support frame 102.

[0033] Furthermore, each of the sixth arm segment fixing components includes a third top plate 128, an eighth mounting plate 129, and a sixth pipe clamp 130. The third top plate 128 is mounted on the upper surface of the top fixing frame. The eighth mounting plate 129 is vertically arranged on the upper surface of the third top plate 128. The sixth pipe clamp 130 is arranged on the side of the eighth mounting plate 129 away from the first support frame 102.

[0034] In this embodiment, the first pipe clamp 115, the second pipe clamp 118, the third pipe clamp 121, the fourth pipe clamp 124, the fifth pipe clamp 127 and the sixth pipe clamp 130 are all used to fix the key nodes of the arm segment of the S-shaped spatial torsion pipeline 106.

[0035] Furthermore, the first mounting plate 108, the second mounting plate 111, the third mounting plate 114, the two fifth mounting plates 120, the sixth mounting plate 123, the seventh mounting plate 126 and the eighth mounting plate 129 are all provided with oblique reinforcing plates 131.

[0036] In this embodiment, the inclined reinforcing plate 131 makes the overall structure of each fastener more stable.

[0037] The above description discloses only one preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. Those skilled in the art will understand that all or part of the processes of the above embodiments can be implemented, and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A fixing device for S-shaped space twist pipeline vibration impact test, characterized in that, comprising a rectangular bottom frame, a first support frame, a second support frame and a top end support frame, one side of the end of the rectangular bottom frame is fixedly provided with an extended square frame, the first support frame is installed on the upper surface of the rectangular bottom frame, the second support frame is installed on the upper surface of the extended square frame, the second support frame is connected with the side surface of the first support frame, and the top end of the second support frame is provided with the top end support frame. The upper surface of the end of the rectangular bottom frame away from the extended square frame is provided with a first end fixing part and a first arm segment fixing part, the side surface of the end of the first support frame close to the first end fixing part is provided with a second arm segment fixing part, the top of the end of the first support frame close to the first end fixing part is provided with two third arm segment fixing parts, the two third arm segment fixing parts are located on the side of the first support frame close to the extended square frame, the upper surface of the second support frame is further provided with a fourth arm segment fixing part, the fourth arm segment fixing part is located at the end of the second support frame away from the top end support frame, the side wall of the end of the top end support frame close to the fourth arm segment fixing part is provided with a fifth arm segment fixing part, and the top end of the top end support frame is further provided with a sixth arm segment fixing part and a second end fixing part, the sixth arm segment fixing part is located at the end of the top end support frame close to the fourth arm segment fixing part, and the second end fixing part is located at the side of the top end support frame away from the first support frame. The first end fixing part and the second end fixing part are used for fixing the end of the S-shaped space twist pipeline. The first arm segment fixing part, the second arm segment fixing part, the two third arm segment fixing parts, the fourth arm segment fixing part, the fifth arm segment fixing part and the sixth arm segment fixing part are used for fixing the key nodes of the arm segment of the S-shaped space twist pipeline.

2. The fixing device for S-shaped space twist pipeline vibration impact test according to claim 1, characterized in that, the first end fixing part comprises a first bottom plate, a first mounting plate and a first fixed pipe head, the first bottom plate is installed on the upper surface of the rectangular bottom frame, the upper surface of the first bottom plate is vertically provided with the first mounting plate, one side of the first mounting plate away from the extended square frame is provided with the first fixed pipe head, and the first fixed pipe head is used for fixing the end of the S-shaped space twist pipeline.

3. The fixing device for S-shaped space twist pipeline vibration impact test according to claim 2, characterized in that, the second end fixing part comprises a second bottom plate, a second mounting plate and a second fixed pipe head, the second bottom plate is installed on the upper surface of the top end support frame, the upper surface of the second bottom plate is vertically provided with the second mounting plate, one side of the second mounting plate away from the first end fixing part is provided with the second fixed pipe head, the second fixed pipe head is provided in an inclined structure, and the second fixed pipe head is used for fixing the end of the S-shaped space twist pipeline. ​ ​ ​ 4. The S-shaped space torsion pipeline vibration impact test fixing device according to claim 3, characterized in that the first arm section fixing member comprises a third bottom plate, a third mounting plate and a first pipe clamp, the third bottom plate is installed on the upper surface of the rectangular bottom frame, the upper surface of the third bottom plate is vertically provided with the third mounting plate, and one side of the third mounting plate facing the first support frame is provided with the first pipe clamp.

5. The S-shaped space torsion pipeline vibration impact test fixing device according to claim 4, characterized in that the second arm section fixing member comprises a first side plate, a fourth mounting plate and a second pipe clamp, the first side plate is installed on the side wall of the first support frame, the first side plate is obliquely provided with the fourth mounting plate, and one side of the fourth mounting plate facing the extended square frame is provided with the second pipe clamp.

6. The S-shaped space torsion pipeline vibration impact test fixing device according to claim 5, characterized in that each third arm section fixing member comprises a first top plate, a fifth mounting plate and a third pipe clamp, the first top plate is installed on the top end of the first support frame, the upper surface of the first top plate is vertically provided with the fifth mounting plate, the top end of the fifth mounting plate is obliquely arranged, and one side of the top end of the fifth mounting plate facing the ground is provided with the third pipe clamp.

7. The S-shaped space torsion pipeline vibration impact test fixing device according to claim 6, characterized in that the fourth arm section fixing member comprises a second top plate, a sixth mounting plate and a fourth pipe clamp, the second top plate is installed on the top end of the second support frame, the upper surface of the second top plate is vertically provided with the sixth mounting plate, and one side of the sixth mounting plate facing the first support frame is provided with the fourth pipe clamp.

8. The S-shaped space torsion pipeline vibration impact test fixing device according to claim 7, characterized in that each fifth arm section fixing member comprises a second side plate, a seventh mounting plate and a fifth pipe clamp, the second side plate is installed on the side wall of the top end fixed frame, the second side plate is obliquely provided with the seventh mounting plate, and one side of the seventh mounting plate away from the first support frame is provided with the fifth pipe clamp.

9. The S-shaped space torsion pipeline vibration impact test fixing device according to claim 8, characterized in that each sixth arm section fixing member comprises a third top plate, an eighth mounting plate and a sixth pipe clamp, the third top plate is installed on the upper surface of the top end fixed frame, the upper surface of the third top plate is vertically provided with the eighth mounting plate, and one side of the eighth mounting plate away from the first support frame is provided with the sixth pipe clamp.

10. The S-shaped space torsion pipeline vibration impact test fixing device according to claim 9, characterized in that ​ ​ ​ ​ ​ ​ The first pipe clamp, the second pipe clamp, the third pipe clamp, the fourth pipe clamp, the fifth pipe clamp and the sixth pipe clamp are used for fixing key nodes of arm sections of the S-shaped space twisted pipeline, and the first mounting plate, the second mounting plate, the third mounting plate, the two fifth mounting plates, the sixth mounting plate, the seventh mounting plate and the eighth mounting plate are provided with inclined reinforcing plates.

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