Long flexible pipeline low-resistance unfolding, mounting and fixing support

Abstract

The invention discloses a long flexible pipeline low-resistance unfolding installation fixing support which is characterized in that the long flexible pipeline low-resistance unfolding installation fixing support is fixed to a cabin body (5) and an unfolding platform (6) and comprises a flexible pipeline tail end fixing support assembly (1), a pipeline cabin penetrating protection support assembly (2), a pipeline cabin inner supporting assembly (3) and a pipeline unfolding track maintaining support assembly (4). The flexible pipeline tail end fixing support assemblies (1) are fixed to the cabin wall of the cabin body (5) and the back face of the unfolding platform (6) respectively. The pipeline cabin penetrating protection support assemblies (2) are arranged at the cabin penetrating positions of two pipelines in a cabin body (5) respectively. The pipeline cabin inner supporting assembly (3) is arranged in the cabin body (5); the pipeline unfolding track maintaining support assembly (4) is arranged on the unfolding platform (6). The requirement for pressing the flexible pipeline of the cabin body of the space station is met, bending and damage are avoided in the process that the track is unfolded by 180 degrees along with an exposed platform, and the requirement for supporting long-service-life work of the track of the space station is met.

Description

Technical Field

[0001] The invention relates to the field of aerospace pipeline installation, and in particular to a low-resistance deployment and installation fixing bracket for a long flexible pipeline. Background Art

[0002] Due to the limitations of the launch envelope, there are ground-compression designs in the aerospace field. Some of the mechanical products that are deployed in orbit involve flexible pipelines that are deployed together with the deployment mechanism or structure, and the deployment power is generally not large. This requires that the pipelines deployed with the mechanism have a small resistance torque during the deployment process, and cannot interfere with other products or damage the pipelines during and after the deployment process.

[0003] In order to improve the on-orbit exposure load test capability, the experimental cabin is designed with quadrant I and III deployable exposure platforms to provide a good thermal environment for the load station. The deployable exposure platform is designed with an active fluid circuit. The active fluid circuits of the cabin main structure and the exposure platform need to be equipped with flexible pipelines to enable the on-orbit exposure platform to be deployed without affecting the active fluid circuit. Therefore, it is necessary to design a set of flexible pipeline installation fixing brackets to meet the two states of compression and deployment of the exposure platform, and at the same time meet the requirement that the flexible pipeline can be deployed 180° with the exposure platform.

[0004] In summary, it is necessary to design a set of low-resistance and high-reliability flexible pipeline installation and fixing brackets to meet the two states of compression of the active launch section of the exposure platform and on-orbit deployment. The flexible pipeline will not bend or damaged during the 180° deployment of the exposure platform, thus supporting the long-life operation of the space station in orbit. Summary of the invention

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A low-resistance deployment and installation fixing bracket for a long flexible pipeline, characterized in that it is fixed on a cabin 5 and a deployment platform 6, and comprises a flexible pipeline end fixing bracket assembly 1, a pipeline cabin penetration protection bracket assembly 2, a pipeline cabin support assembly 3, and a pipeline deployment trajectory maintaining bracket assembly 4, wherein the flexible pipeline end fixing bracket assembly 1 is respectively fixed to the bulkhead of the cabin 5 and the back side of the deployment platform 6; the pipeline cabin penetration protection bracket assembly 2 is respectively arranged at two locations where the pipeline penetrates the cabin 5, to support and limit the pipeline; the pipeline cabin support assembly 3 is arranged in the cabin 5, to preform the cabin pipeline part and play a supporting role; the pipeline deployment trajectory maintaining bracket assembly 4 is arranged on the deployment platform 6, to maintain the flexible pipeline in the same plane when the deployment platform 6 is in different states of compression and deployment.

[0007] Furthermore, the support assembly 3 in the pipeline cabin can adapt to the lengths of different pipelines by adjusting the height.

[0008] Furthermore, the flexible pipeline is a corrugated tube.

[0009] Furthermore, the pipeline end fixing bracket assembly 1 includes a metal bracket 101, a rubber pad 102, and a fixing clamp 103. The pipeline end fixing bracket assembly 1 fixes the pipeline. The fixing clamp 103 is fixed to the metal bracket 101 by screws. The rubber pad 102 is bonded inside the metal bracket 101 and the fixing clamp 103.

[0010] Furthermore, the pipeline penetration protection bracket assembly 2 has a U-shaped cross-section, including a metal bracket 201 and a first multilayer polyimide film 202 adhered to the surface of the metal bracket 201, which is used to support the flexible pipeline when it penetrates the cabin and prevent it from getting stuck when it moves.

[0011] Furthermore, the metal bracket 201 is provided with a sunken notch for fasteners to fix the metal bracket 201 , ensuring that the fasteners do not protrude from the surface of the metal bracket 201 , while the first multilayer polyimide film 202 is adhered to the surface of the metal bracket 201 .

[0012] Furthermore, the support assembly 3 in the pipeline cabin includes an arc-shaped support bracket 301, a rubber pad 302, a second multi-layer polyimide film 303, a left support leg 304, and a right support leg 305. The arc-shaped support bracket 301 has a U-shaped cross-section, and the rubber pad 302 and the second multi-layer polyimide film 303 are adhered to the inner surface to prevent the flexible pipeline of the active launch section of the aircraft from escaping from the arc-shaped support bracket 301. The height of the support leg is set to ensure that the flexible pipeline is in a pre-formed arc state.

[0013] Furthermore, the arc-shaped support bracket 301 , the left support leg 304 , and the right support leg 305 are connected together by screwing, and the rubber pad 302 and the second multilayer polyimide film 303 are glued to the arc-shaped support bracket 301 .

[0014] Furthermore, the pipeline deployment trajectory maintaining bracket assembly 4 includes a special-shaped supporting bracket 401 and a third multi-layer polyimide film 402 pasted inside the special-shaped supporting bracket 401 .

[0015] Furthermore, the multi-layers in the first multi-layer polyimide film 202 , the second multi-layer polyimide film 303 , or the third multi-layer polyimide film 402 refer to 8 to 12 layers.

[0016] The beneficial effects of the present invention are:

[0017] The present invention meets the requirements for compacting the flexible pipelines of the space station cabin, and prevents bending and damage during the 180° unfolding of the exposed platform on orbit, thereby supporting the requirements for the long-term operation of the space station on orbit. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of a low-resistance deployment and installation fixing bracket of a long flexible pipeline of the present invention;

[0019] Figure 2 This is a front view of the flexible pipe end fixing bracket assembly in the present invention;

[0020] Figure 3 This is a front view of the pipeline penetration protection bracket assembly in the present invention;

[0021] Figure 4 This is a front view of the support assembly in the pipeline cabin of the present invention;

[0022] Figure 5 This is a front view of the pipeline deployment trajectory maintenance bracket assembly in the present invention;

[0023] Description of reference numerals:

[0024] 1: Flexible pipeline end fixing bracket assembly, 2: Pipeline cabin protection bracket assembly, 3: Pipeline cabin support assembly, 4: Pipeline deployment trajectory maintenance bracket assembly, 5: Cabin body, 6: Deployment platform. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] The long flexible pipeline low-resistance deployment, installation and fixing bracket of the present invention is a bracket used for the long flexible pipeline low-resistance, large-angle and small-space deployment, installation and fixing. Figure 1 This is a three-dimensional structural diagram of the low-resistance deployment and installation fixing bracket of the long flexible pipeline of the present invention. Figure 1 As shown, the long flexible pipeline low resistance deployment installation fixing bracket of this embodiment is fixed on the cabin 5 and the deployment platform 6, including: a flexible pipeline end fixing bracket assembly 1, a pipeline cabin protection bracket assembly 2, a pipeline cabin support assembly 3, and a pipeline deployment trajectory maintenance bracket assembly 4, wherein:

[0027] like Figure 1 As shown, the flexible pipeline end fixing bracket assembly 1 is respectively screwed and fixed to the bulkhead of the cabin 5 and the back side of the deployment platform 6, the pipeline penetration protection bracket assembly 2 is respectively arranged at two locations where the pipeline penetrates the cabin 5, to support and limit the pipeline, the pipeline in-cabin support assembly 3 is arranged in the cabin 5, to preform the pipeline part in the cabin and play a supporting role, and at the same time, the pipeline in-cabin support assembly 3 can be adjusted in height to adapt to the length of different pipelines, and the pipeline deployment trajectory maintaining bracket assembly 4 is arranged on the deployment platform 6, to maintain the flexible pipeline in the same plane when the deployment platform 6 is compressed and deployed in different states.

[0028] Figure 2The front view of the flexible pipeline end fixing bracket assembly in the present invention. The pipeline end fixing bracket assembly 1 is about 200mm away from the pipeline port and is fixed to the cabin 5 and the deployment platform 6 by screw connection. Figure 2 As shown, the pipe end fixing bracket assembly 1 includes a metal bracket 101, a rubber pad 102, and a fixing clamp 103. The pipe end fixing bracket assembly 1 fixes the pipe, and the rubber pad 102 protects the flexible pipe (corrugated pipe) to reduce the stress on the threaded joint. The rubber pad 102 is bonded inside the metal bracket 101 and the fixing clamp 103, and the fixing clamp 103 is fixed to the metal bracket 101 by screws. The rubber pad 102 plays a role in protecting and fixing the flexible pipe.

[0029] The present invention adopts the method of adding a rubber pad inside the fixed bracket at the end of the pipeline to absorb the kinetic energy generated by the launch section load as the deformation performance of the rubber pad, thereby achieving the fixation and protection of the outer metal braided layer of the flexible pipeline and the internal bellows, while reducing the stress at the threaded joint to ensure the safety of the sealing structure.

[0030] Figure 3 This is a front view of the pipeline penetration protection bracket assembly in the present invention. Figure 3 As shown, the cross section of the pipeline penetration protection bracket assembly 2 is U-shaped, including a metal bracket 201 and a first multi-layer polyimide film 202 pasted on the surface of the metal bracket 201, which is used to support the flexible pipeline when it penetrates the cabin and prevent it from getting stuck when it moves. The metal bracket 201 of the pipeline penetration protection bracket 2 is provided with a sunken notch for fasteners to fix the metal bracket 201, ensuring that the fasteners do not protrude from the surface of the metal bracket 201, and at the same time, 10 layers of polyimide film are pasted to the surface of the metal bracket 201.

[0031] The present invention adopts a bracket with a "U-shaped" cross-section, and a polyimide film is pasted on the inner side of the bracket. The "U-shaped" cross-section ensures that the flexible pipeline of the emission section is basically maintained in the same plane, and the polyimide film ensures that the flexible pipeline does not get stuck when sliding in the plane.

[0032] Figure 4 This is a front view of the support assembly in the pipeline cabin of the present invention. Figure 4As shown, the pipeline cabin support assembly 3 includes an arc-shaped support bracket 301, a rubber pad 302, a second multi-layer polyimide film 303, a left support leg 304, and a right support leg 305. The arc-shaped support bracket 301 has a U-shaped cross section, and the rubber pad 302 and the second multi-layer polyimide film 303 are pasted on the inner surface to prevent the flexible pipeline of the aircraft launch active section from falling off the bracket 301. The support leg height is set to about 80 mm to ensure the pre-formed arc state of the flexible pipeline and ensure that the subsequent flexible pipeline can be smoothly unfolded with the unfolding plate. The rubber pad 302 and the second multi-layer polyimide film 303 play a role in protecting the flexible pipeline and low-resistance sliding. The arc-shaped support bracket 301, the left support leg 304, and the right support leg 305 are connected together by screwing, and the rubber pad 302 and the second multi-layer polyimide film 303 are glued to the arc-shaped support bracket 301. The rubber pad 302 and the second multi-layer polyimide film 303 play a role in protecting the flexible pipeline and low-resistance sliding.

[0033] The present invention adopts arc-shaped support brackets, left support legs, and right support legs, so that the flexible pipeline is preformed in an arc state, ensuring that the subsequent flexible pipeline can be smoothly unfolded with the unfolding plate, and the rubber pad and 10 layers of polyimide film play a role in protecting the flexible pipeline and low-resistance sliding;

[0034] Figure 5 This is a front view of the pipeline deployment trajectory maintenance support assembly in the present invention. Figure 5 As shown, the pipeline deployment trajectory maintenance bracket assembly 4 includes a special-shaped support bracket 401 and a third multi-layer polyimide film 402 pasted inside the special-shaped support bracket 401. The third multi-layer polyimide film 402 pasted inside the special-shaped support bracket 401 realizes the pipeline support of the active section, and ensures that the flexible pipeline moves in the horizontal plane when deployed on track. The third multi-layer polyimide film 402 is pasted to the inside of the special-shaped support bracket 401, and the special-shaped support bracket 401 realizes the pipeline support of the active section of the aircraft launch, and ensures that the flexible pipeline moves in the same horizontal plane as the cabin penetration and cabin support during the on-track deployment of the deployment plate.

[0035] The present invention adopts a deployment trajectory maintaining bracket and a special-shaped support bracket to fully surround the flexible pipeline. Together with the 10-layer polyimide film pasted inside the bracket, the active launch section of the aircraft supports the pipeline. During the on-track deployment process of the deployment plate, the flexible pipeline is guaranteed to move in the same horizontal plane as the cabin penetration point and the cabin support point.

[0036] In the present specification, the multi-layer in the first multi-layer polyimide film 202 , the second multi-layer polyimide film 303 , or the third multi-layer polyimide film 402 refers to 8 to 12 layers, preferably 10 layers.

[0037] Compared with the traditional flexible pipeline deployment and fixing device, the present invention has a novel overall system structure and a reasonable design under more complex working conditions. The method of adding a rubber pad inside the fixed bracket at the end of the pipeline absorbs the kinetic energy generated by the launch section load as the variable performance of the rubber pad, thereby achieving the fixation and protection of the outer metal braided layer of the flexible pipeline and the internal bellows, while reducing the stress on the threaded joint to ensure the safety of the sealing structure; the bracket has a "U-shaped" cross-section, and a polyimide film is pasted on the inside of the bracket. The "U-shaped" cross-section ensures that the flexible pipeline of the launch section is basically maintained in the same plane, and the polyimide film ensures The flexible pipeline will not get stuck when sliding in the surface; the arc-shaped support bracket, left support leg and right support leg make the flexible pipeline pre-formed in a circular arc state, ensuring that the flexible pipeline can be smoothly deployed with the subsequent deployment plate. The rubber pad and 10 layers of polyimide film protect the flexible pipeline and slide with low resistance; the deployment trajectory maintaining bracket and the special-shaped support bracket can fully surround the flexible pipeline, and cooperate with the 10 layers of polyimide film pasted inside the bracket to realize the support of the pipeline by the active launch section of the aircraft. During the on-orbit deployment process with the deployment plate, it is ensured that the flexible pipeline moves in the same horizontal plane as the cabin penetration and the cabin support.

[0038] The above-mentioned specific implementation can be partially adjusted in different ways by those skilled in the art without departing from the principle and purpose of the present invention. The protection scope of the present invention shall be based on the claims and shall not be limited by the above-mentioned specific implementation. Each implementation scheme within its scope shall be subject to the constraints of the present invention.

Claims

1. A low-resistance deployment and installation fixing bracket for a long flexible pipeline, characterized in that: It is fixed on a cabin (5) and an unfolding platform (6), and comprises a flexible pipeline end fixing bracket assembly (1), a pipeline cabin penetration protection bracket assembly (2), a pipeline cabin support assembly (3), and a pipeline unfolding trajectory maintaining bracket assembly (4). The flexible pipeline end fixing bracket assembly (1) is respectively fixed to the cabin wall of the cabin (5) and the back of the unfolding platform (6); the pipeline cabin penetration protection bracket assembly (2) is respectively arranged at two locations where the pipeline penetrates the cabin (5) to support and limit the pipeline; the pipeline cabin support assembly (3) is arranged in the cabin (5) to preform the cabin pipeline part and play a supporting role; the pipeline unfolding trajectory maintaining bracket assembly (4) is arranged on the unfolding platform (6) to maintain the flexible pipeline in the same plane when the unfolding platform (6) is in different states of compression and unfolding.

2. A low-resistance deployment and installation fixing bracket for a long flexible pipeline according to claim 1, characterized in that: The support assembly (3) in the pipeline cabin can adapt to different pipeline lengths by adjusting the height.

3. The low-resistance deployment and installation fixing bracket for a long flexible pipeline according to claim 1 is characterized in that: The flexible pipeline is a corrugated pipe.

4. The low-resistance deployment and installation fixing bracket for a long flexible pipeline according to claim 1 is characterized in that: The pipeline end fixing bracket assembly (1) comprises a metal bracket (101), a rubber pad (102), and a fixing clamp (103); the pipeline end fixing bracket assembly (1) fixes the pipeline; the fixing clamp (103) is fixed to the metal bracket (101) by means of screws; and the rubber pad (102) is bonded inside the metal bracket (101) and the fixing clamp (103).

5. The low-resistance deployment and installation fixing bracket for long flexible pipelines according to claim 1, characterized in that: The pipeline penetration protection bracket assembly (2) has a U-shaped cross section and comprises a metal bracket (201) and a first multilayer polyimide film (202) adhered to the surface of the metal bracket (201), and is used to support the flexible pipeline when it penetrates the cabin and prevent it from getting stuck when it moves.

6. A low-resistance deployment and installation fixing bracket for a long flexible pipeline according to claim 5, characterized in that: The metal bracket (201) is provided with a sunken notch for fasteners to fix the metal bracket (201), ensuring that the fasteners do not protrude from the surface of the metal bracket (201), while the first multilayer polyimide film (202) is adhered to the surface of the metal bracket (201).

7. The low-resistance deployment and installation fixing bracket for a long flexible pipeline according to claim 1, characterized in that: The pipeline cabin inner support assembly (3) comprises an arc-shaped support bracket (301), a rubber pad (302), a second multi-layer polyimide film (303), a left support leg (304), and a right support leg (305); the arc-shaped support bracket (301) has a U-shaped cross-section, and the rubber pad (302) and the second multi-layer polyimide film (303) are adhered to the inner surface to prevent the flexible pipeline of the aircraft launch active section from escaping from the arc-shaped support bracket (301); the support leg height is set to ensure that the flexible pipeline is in a pre-formed arc state.

8. The low-resistance deployment and installation fixing bracket for a long flexible pipeline according to claim 7, characterized in that: The arc-shaped support bracket (301), the left support leg (304), and the right support leg (305) are connected together by screwing, and the rubber pad (302) and the second multi-layer polyimide film (303) are glued to the arc-shaped support bracket (301).

9. The low-resistance deployment and installation fixing bracket for a long flexible pipeline according to claim 7, characterized in that: The pipeline deployment trajectory maintaining support assembly (4) comprises a special-shaped support support (401) and a third multi-layer polyimide film (402) pasted inside the special-shaped support support (401).

10. A low-resistance deployment and installation fixing bracket for a long flexible pipeline according to any one of claims 5 to 9, characterized in that: The multi-layers in the first multi-layer polyimide film (202), the second multi-layer polyimide film (303), or the third multi-layer polyimide film (402) refer to 8 to 12 layers.

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