Device for detecting curling performance of flexible pipe in low-temperature environment

Abstract

The utility model discloses a device for detecting the curling performance of a flexible pipe in a low-temperature environment, which comprises a supporting bracket, a compression roller assembly, a curling assembly and a clamping assembly, the supporting bracket is hollow to form a mounting cavity, the compression roller assembly is arranged in the mounting cavity, a first wire passing hole for a pipe to be detected to pass through is formed in the compression roller assembly, and a second wire passing hole is formed in the clamping assembly. The pressing roller assembly is used for adjusting a to-be-detected pipe in the length direction of the pressing roller assembly and pressing the to-be-detected pipe, a second wire passing hole is formed in the curling assembly, and the curling assembly is used for driving the to-be-detected pipe to rotate so that the to-be-detected pipe can be wound around the curling assembly; according to the pipe winding device, the pipe to be detected can be automatically wound according to requirements in the detection process, the screw pitch of a spiral line formed by winding the pipe to be detected is controllable and uniform, and then the accuracy and reliability of a final detection result are effectively ensured.

Description

Technical Field

[0001] This utility model relates to the field of flexible tube performance testing technology, and further to a testing device for the curling performance of flexible tubes in low-temperature environments. Background Technology

[0002] In existing technologies, the flexibility of flexible sleeves at low temperatures is a crucial performance characteristic. Current testing methods for this property involve placing the sample and mandrel together in a low-temperature chamber, setting a specific temperature, and after a set time. The operator holds the sample in one hand and the mandrel in the other, wrapping the sample around the mandrel several times, then observing for cracks on the sample surface. This method suffers from drawbacks such as its crude and unpredictable nature. Furthermore, manually wrapping the sample requires opening the chamber door, leading to temperature fluctuations. Additionally, the operator's winding pressure varies with each wrap, resulting in an uncertain helix pitch and inaccurate test results. In summary, existing testing devices suffer from inaccurate results and low automation.

[0003] In view of the problems existing in the prior art, there is an urgent need to design a testing device for the curling performance of flexible tubes in low-temperature environments, so as to solve the above problems. Utility Model Content

[0004] To address the aforementioned technical problems, the purpose of this utility model is to provide a testing device for the curling performance of flexible tubes in low-temperature environments, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides a device for testing the curling performance of flexible tubes in low-temperature environments, comprising:

[0006] The support bracket is hollow and forms an installation cavity;

[0007] A pressure roller assembly is disposed in the mounting cavity. The pressure roller assembly has a first wire-passing hole for the pipe to be tested to pass through. The pressure roller assembly is used to adjust and press the pipe to be tested along the length direction of the pressure roller assembly.

[0008] A coiling assembly is disposed within the mounting cavity. The coiling assembly has a second wire-passing hole and is used to drive the pipe to be tested to rotate so that the pipe to be tested is wound around the coiling assembly.

[0009] A clamping assembly is disposed within the mounting cavity and is used to clamp one end of the pipe to be tested that corresponds to the end entering the mounting cavity.

[0010] By setting up pressure roller assembly, coiling assembly and clamping assembly, the pipe to be tested can be automatically wound according to the requirements during the testing process, and the pitch of the spiral formed by the winding of the pipe to be tested can be controlled and uniform, thereby effectively improving the standardization of the testing process and thus effectively ensuring the accuracy and reliability of the final test results.

[0011] In some embodiments, the pressure roller assembly includes a sliding guide with a sliding thread guide block slidably disposed on the sliding guide. A first thread guide hole is formed on the sliding thread guide block, and a positioning member is spirally disposed on one side of the sliding thread guide block so that the sliding thread guide block can be fixed on the sliding guide by rotating the positioning member.

[0012] By setting a sliding guide, an angle of not equal to 90° is achieved between the line connecting the first wire hole and the second wire hole and the coiling assembly. This ensures that the pipe to be tested can form a stable and controllable spiral pitch when wound on the coiling assembly, and also effectively avoids the phenomenon of two adjacent spirals overlapping on the coiling assembly.

[0013] In some embodiments, the pressure roller assembly further includes a first pressure roller and a second pressure roller, which are disposed opposite to each other. The first pressure roller is fixedly disposed on the sliding guide on the side corresponding to the side close to the curling assembly, and the second pressure roller is movably disposed on the sliding guide on the side corresponding to the side close to the curling assembly via a threaded adjustment assembly, so that the second pressure roller can move closer to or further away from the first pressure roller by rotating the threaded adjustment assembly.

[0014] By setting up the first and second pressure rollers, the path of the pipe to be tested is effectively constrained, thereby avoiding jumping and vibration during the transport of the pipe to be tested, and thus effectively ensuring the stability of the transport of the pipe to be tested. In addition, the gap between the first and second pressure rollers is controllable, which allows the testing device to adapt to pipes of different diameters, thereby effectively improving the flexibility and applicability of the testing device.

[0015] In some embodiments, a damper is connected to one end of the first pressure roller.

[0016] By connecting a damper to one end of the first pressure roller, overspeed and loss of control during the conveying of the pipe to be tested are effectively avoided, and the vibration energy generated during the conveying process is also effectively absorbed, thereby effectively improving the stability of the device during testing.

[0017] In some embodiments, the curling assembly includes a curling core and a rotating motor. The curling core has a second wire-passing hole and is suspended in the mounting cavity by a support member. The output end of the rotating motor is connected to one end of the curling core.

[0018] In some embodiments, the clamping assembly includes a fixing member and a forward and reverse lead screw. The forward and reverse lead screw is disposed on the side of the coiling assembly away from the sliding guide via the fixing member. The forward and reverse lead screw is rotatably disposed on the fixing member. A first clamping member and a second clamping member are threadedly slidably disposed on the forward and reverse lead screw. The first clamping member and the second clamping member are disposed opposite to each other so that the first clamping member and the second clamping member can move relatively closer or further apart by rotating the forward and reverse lead screw.

[0019] In some embodiments, the fixing member is further provided with a guide member, which is parallel to the positive and negative lead screw members and passes through the first clamping member and the second clamping member.

[0020] By setting guide members, the first clamping member and the second clamping member can slide in a predetermined direction, which effectively improves the accuracy of the adjustment of the first clamping member and the second clamping member according to the requirements, and also improves the smoothness of the sliding movement during the adjustment process.

[0021] In some embodiments, the support bracket is provided with shock-absorbing pads.

[0022] By setting up shock-absorbing pads, the vibration generated during the transportation and winding of the pipe to be tested is effectively reduced, further improving the stability of the testing process and thus ensuring the reliability of the final test results.

[0023] In some embodiments, the device for testing the curling performance of flexible tubes in low-temperature environments provided by this utility model further includes: a low-temperature test chamber, wherein the interior of the low-temperature test chamber is hollow and has an experimental cavity, and the support bracket is disposed inside the experimental cavity;

[0024] The low-temperature test chamber is also equipped with an observation window.

[0025] By setting up a low-temperature test chamber, a stable environment is provided for the entire testing process, reducing the influence of external unstable factors and thus effectively ensuring the accuracy and reliability of the final test results. In addition, an observation window is opened to observe the transportation and winding of the pipe under test in real time, thereby ensuring the reliability of the testing process.

[0026] In some embodiments, the device for testing the curling performance of flexible tubes in low-temperature environments provided by this utility model further includes a control cabinet, which is connected to both the low-temperature test chamber and the curling assembly to control the temperature inside the low-temperature test chamber and the rotation of the curling assembly.

[0027] Compared with the prior art, the device for testing the curling performance of flexible tubes in low-temperature environments provided by this utility model has the following advantages:

[0028] 1. The device for testing the coiling performance of flexible tubes in low-temperature environments provided by this utility model, by setting up a pressure roller assembly, a coiling assembly and a clamping assembly, enables the tube to be tested to be automatically wound according to the requirements during the testing process, and the pitch of the spiral formed by the winding of the tube to be tested is controllable and uniform, thereby effectively improving the standardization of the testing process and ensuring the accuracy and reliability of the final test results.

[0029] 2. The device for testing the curling performance of flexible tubes in low-temperature environments provided by this utility model has a damper connected to one end of the first pressure roller, which effectively avoids overspeed and loss of control during the conveying of the tube to be tested, and also effectively absorbs the vibration energy generated during the conveying process, thereby effectively improving the stability of the device during testing. Attached Figure Description

[0030] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0031] Figure 1 This is a schematic diagram of the structure of the support bracket of the device for testing the curling performance of a flexible tube in a low-temperature environment, according to a preferred embodiment of this utility model.

[0032] Figure 2 This is a schematic diagram of the pressure roller assembly of the device for testing the curling performance of a flexible tube in a low-temperature environment, which is a preferred embodiment of this utility model.

[0033] Figure 3 This is a schematic diagram of the structure of the coiling component of the device for testing the coiling performance of a flexible tube in a low-temperature environment, which is a preferred embodiment of this utility model.

[0034] Figure 4 This is a schematic diagram of the clamping assembly of a device for testing the curling performance of a flexible tube in a low-temperature environment, according to a preferred embodiment of this utility model.

[0035] Figure 5 This is a schematic diagram of the overall three-dimensional structure of the device for testing the curling performance of a flexible tube in a low-temperature environment, which is a preferred embodiment of this utility model.

[0036] Explanation of icon numbers:

[0037] The components include: pipe to be tested 10, support bracket 20, mounting cavity 21, shock-absorbing pad 22, support side plate 23, bottom plate 24, top plate 25, pressure roller assembly 30, sliding wire guide block 31, damper 32, sliding guide 33, positioning component 34, first pressure roller component 35, second pressure roller component 36, thread adjustment assembly 37, coiling assembly 40, rotating motor 41, coiling core component 42, second wire guide hole 43, overhead seat component 44, low-temperature resistant coupling 45, clamping assembly 50, fixing component 51, positive and negative screw component 52, first clamping component 53, second clamping component 54, guide component 55, low-temperature test chamber 60, and control cabinet 70. Detailed Implementation

[0038] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0039] To keep the drawings concise, each figure only schematically shows the parts relevant to the utility model, and these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0040] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0041] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0043] In one embodiment, refer to the appendix to the specification. Figures 1 to 4 The present invention provides a device for testing the coiling performance of a flexible tube in a low-temperature environment, comprising a support bracket 20, a pressure roller assembly 30, a coiling assembly 40, and a clamping assembly 50. The support bracket 20 is hollow to form an installation cavity 21. The pressure roller assembly 30 is disposed in the installation cavity 21 and has a first wire-passing hole for the tube 10 to be tested to pass through. The pressure roller assembly 30 is used to adjust and press the tube 10 to be tested along the length direction of the pressure roller assembly 30. The coiling assembly 40 is disposed in the installation cavity 21 and has a second wire-passing hole 43. The coiling assembly 40 is used to drive the tube 10 to be tested to rotate so that the tube 10 to be tested is wound around the coiling assembly 40. The clamping assembly 50 is disposed in the installation cavity 21 and is used to clamp the end of the tube 10 to be tested that corresponds to the end entering the installation cavity 21.

[0044] Specifically, the pipe to be tested 10 is usually any one of the flexible pipes such as heat shrink tubing, pneumatic tubing, oil tubing, corrugated tubing, and wire harness. The support bracket 20 mainly consists of two support side plates 23, a top plate 25, and a bottom plate 24. The support side plates 23, top plate 25, and bottom plate 24 enclose an installation cavity 21. The pressure roller assembly 30 is set on the top plate 25, and the first wire hole is opened through the top plate 25. The coiling assembly 40 is set below the pressure roller assembly 30, and the second wire hole is set towards the first wire hole. The second wire hole is used to limit the position of the pipe to be tested 10. The clamping assembly 50 is preferably set below the coiling assembly 40. In the actual testing process, the pipe to be tested 10 passes through the pressure roller assembly 30, the coiling assembly 40, and the clamping assembly 50 in sequence, and then the coiling assembly 40 is driven to rotate, thereby realizing that the pipe to be tested 10 is wound on the coiling assembly 40.

[0045] It should be noted that the number of first threading holes on the pressure roller assembly 30 can be two or more, and multiple first threading holes are arranged sequentially along the length direction of the pressure roller assembly 30. The number of second threading holes corresponds to the number of first threading holes. In addition, the second threading hole can also be a second threading groove, which can also achieve the effect of limiting the tube 10 to be tested.

[0046] It should be noted that during actual testing, the support bracket 20 is in a low-temperature environment required by the experiment. All parts of the entire device are made of low-temperature resistant materials to avoid rusting in the low-temperature environment. Therefore, the preferred material for this device is aluminum alloy.

[0047] In one embodiment, refer to the appendix to the specification. Figure 1 and Figure 2Based on the above embodiments, the pressure roller assembly 30 includes a sliding guide 33, a sliding wire guide block 31 is slidably disposed on the sliding guide 33, a first wire guide hole is opened on the sliding wire guide block 31, and a positioning member 34 is spirally disposed on one side of the sliding wire guide block 31 so that the sliding wire guide block 31 can be fixed on the sliding guide 33 by rotating the positioning member 34.

[0048] Specifically, a sliding groove is provided on the top plate 25, and the sliding guide 33 is mounted on the sliding groove along the length of the coiling assembly 40. A first wire-passing hole is provided on the sliding wire-passing block 31. In actual use, the connection between the first wire-passing hole and the second wire-passing hole 43 can be adjusted by adjusting the position of the sliding wire-passing block 31, so that there is an angle of not equal to 90° between the connection and the coiling assembly 40. This ensures that the pipe 10 to be tested can form a stable and controllable spiral pitch when wound on the coiling assembly 40, and also effectively avoids the phenomenon of two adjacent spirals being stacked on the coiling assembly 40. A positioning element 34 is spirally provided on the sliding wire-passing block 31 so that the sliding wire-passing block 31 can be fixed on the sliding guide 33 according to actual needs. The positioning element 34 is preferably a hand-tightening screw.

[0049] In one embodiment, refer to the appendix to the specification. Figure 1 and Figure 2 Based on the above embodiments, the pressure roller assembly 30 further includes a first pressure roller 35 and a second pressure roller 36. The first pressure roller 35 and the second pressure roller 36 are arranged opposite to each other. The first pressure roller 35 is fixedly arranged on the sliding guide 33 on the side corresponding to the side close to the curling assembly 40. The second pressure roller 36 is movably arranged on the sliding guide 33 on the side corresponding to the side close to the curling assembly 40 through a threaded adjustment assembly 37, so that the second pressure roller 36 can move closer to or further away from the first pressure roller 35 by rotating the threaded adjustment assembly 37.

[0050] Specifically, the first pressure roller 35 and the second pressure roller 36 are both parallel to the sliding guide 33. In the actual testing process, the pipe 10 to be tested passes through the first threading hole, then through the gap between the first pressure roller 35 and the second pressure roller 36, and then through the second threading hole. This effectively constrains the path of the pipe 10 to be tested, thereby avoiding jumping and vibration during the transport of the pipe 10 to be tested, and thus effectively ensuring the stability of the transport of the pipe 10 to be tested. In addition, the gap between the first pressure roller 35 and the second pressure roller 36 is controllable, which allows the testing device to adapt to pipes of different diameters, thereby effectively improving the flexibility and applicability of the testing device.

[0051] In one embodiment, refer to the appendix to the specification. Figures 1 to 3 Based on the above embodiments, a damper 32 is connected to one end of the first pressure roller 35.

[0052] Specifically, the damper 32 is connected to the first pressure roller 35 via a coupling, wherein the coupling is a low-temperature resistant coupling. By connecting and installing the damper 32 at one end of the first pressure roller 35, the overspeed and loss of control during the conveying of the pipe 10 to be tested are effectively avoided, and the vibration energy generated during the conveying process is also effectively absorbed, thereby effectively improving the stability of the device during testing.

[0053] In one embodiment, refer to the appendix to the specification. Figure 1 and Figure 3 The curling assembly 40 includes a curling core 42 and a rotating motor 41. The curling core 42 has a second wire hole 43. The curling core 42 is suspended in the mounting cavity 21 through the overhead seat 44. The output end of the rotating motor 41 is connected to one end of the curling core 42.

[0054] Specifically, there are two overhead support members 44, which are arranged opposite to each other. The coiled core member 42 is a rod-shaped object, which is suspended between the two overhead support members 44. The coiled core member 42 and the rotating motor 41 are also connected by a low-temperature resistant coupling 45. The coiled core member 42 and the overhead support members 44 adopt a quick-release design to facilitate the replacement of the coiled core member 42. Several second wire-passing holes 43 or second wire-passing grooves are opened at equal intervals on the cylindrical surface of the coiled core member 42. The tube 10 to be tested passes through the corresponding wire-passing holes or wire-passing grooves. This allows the tube 10 to be tested to be limited, thereby ensuring that the tube 10 to be tested can be wound around the coiled core member 42 when the coiled core member 42 rotates.

[0055] It should be noted that the testing environment in this device is usually a low temperature environment of -55℃ to 0℃, and the rotating motor 41 is a low temperature resistant motor with an operating temperature of -60℃ to 110℃. In addition, the bearing is a self-lubricating ceramic bearing, which can rotate smoothly in a low temperature environment of -55℃ to 0℃, effectively avoiding the need to add lubricating oil or grease, thus effectively ensuring the smooth progress of the testing work.

[0056] In one embodiment, refer to the appendix to the specification. Figure 1 and Figure 4 Based on the above embodiments, the clamping assembly 50 includes a fixing member 51 and a forward and reverse screw member 52. The forward and reverse screw member 52 is disposed on the side of the coiling assembly 40 away from the sliding guide member 33 through the fixing member 51. The forward and reverse screw member 52 is rotatably disposed on the fixing member 51. A first clamping member 53 and a second clamping member 54 are threadedly slidably disposed on the forward and reverse screw member 52. The first clamping member 53 and the second clamping member 54 are disposed opposite to each other so that the first clamping member 53 and the second clamping member 54 can move relatively closer or further away by rotating the forward and reverse screw member 52.

[0057] Specifically, a clamping groove for clamping the pipe 10 to be tested is formed between the first clamping member 53 and the second clamping member 54. The positive and negative threaded rods 52 are provided with positive external threads and negative external threads with opposite rotation directions. The positive and negative external threads extend from the center of the positive and negative threaded rods 52 to both ends, so that when the positive and negative threaded rods 52 are rotated, the first clamping member 53 and the second clamping member 54 can move relative to each other or away from each other at the same time, thereby enabling the pipe 10 to be tested to be clamped according to actual needs.

[0058] In one embodiment, refer to the appendix to the specification. Figure 1 and Figure 4 Based on the above embodiments, the fixing member 51 is also provided with a guide member 55, which is parallel to the positive and negative lead screw members 52, and the guide member 55 passes through the first clamping member 53 and the second clamping member 54.

[0059] Specifically, by setting the guide member 55, the first clamping member 53 and the second clamping member 54 can slide in a predetermined direction, which effectively improves the accuracy of the adjustment of the first clamping member 53 and the second clamping member 54 according to the requirements, and also improves the smoothness of the sliding motion during the adjustment process.

[0060] In one embodiment, refer to the appendix to the specification. Figure 1 and Figure 3 Based on the above embodiments, the support bracket 20 is provided with a shock-absorbing pad 22.

[0061] Specifically, by setting up shock-absorbing pads 22, the vibration generated during the transportation and winding of the pipe 10 to be tested during the testing process is effectively reduced, further improving the stability of the testing process and thus ensuring the reliability of the final test results.

[0062] In one embodiment, refer to the appendix to the specification. Figure 5 The device for testing the curling performance of flexible tubes in low-temperature environments provided by this utility model also includes a low-temperature test chamber. The interior of the low-temperature test chamber is hollow and has an experimental cavity. The support bracket 20 is set inside the experimental cavity, and the low-temperature test chamber 60 also has an observation window.

[0063] Specifically, by setting up a low-temperature test chamber 60, a stable environment is provided for the entire testing process, reducing the influence of external unstable factors, thereby effectively ensuring the accuracy and reliability of the final test results. In addition, an observation window is opened to observe the conveying and winding of the pipe 10 under test in real time, thereby ensuring the reliability of the testing process.

[0064] In one embodiment, refer to the appendix to the specification. Figure 5Based on the above embodiments, the device for testing the curling performance of flexible tubes in low-temperature environments provided by this utility model also includes a control cabinet 70. The control cabinet 70 is connected to both the low-temperature test chamber 60 and the curling assembly 40 to control the temperature inside the low-temperature test chamber 60 and the rotation of the curling assembly 40.

[0065] The specific operation process of the testing device provided in this application is as follows: Under room temperature conditions, the tube 10 to be tested is passed through the first threading hole in sequence, and then through the first pressure roller 35 and the second pressure roller 36, and then through the second threading hole 43 of the coiled core 42, until one end of the tube 10 to be tested is located between the first clamping member 53 and the second clamping member 54. Then, rotate the handwheel of the clamping assembly 50 so that the first clamping member 53 and the second clamping member 54 clamp the end of the tube 10 to be tested. It should be noted that the clamping force should not be too large. The tube 10 to be tested should be pulled out from between the first clamping member 53 and the second clamping member 54 with a gentle pull so that the subsequent winding of the tube 10 to be tested can proceed smoothly. Then, adjust the position of the sliding guide 33 in the pressure roller assembly 30 so that there is an angle between the tube 10 to be tested and the coiling core 42. The angle of the angle directly determines the pitch of the spiral formed by the tube 10 to be tested winding on the coiling core 42. Tighten the positioning member to fix the coiling core 42. Rotate the pressure roller assembly 30. The threaded adjustment assembly 37 causes the first pressure roller 35 and the second pressure roller 36 to press the tube 10 to be tested tightly. After the above operations, the work of placing the tube 10 to be tested on the test fixture is completed. After placing the tube 10 to be tested, the temperature of the low temperature test chamber 60 is set to a specific temperature and kept at that temperature for a specific time. At the same time, the parameters of the control panel on the control cabinet 70 are set, and the parameters such as the rotation speed, number of winding turns, holding time, and whether to flip are adjusted are adjusted. After the parameters are adjusted, the rotating motor is started so that the tube 10 to be tested is wound on the winding core 42 for a preset number of turns. Finally, the tube 10 to be tested is taken out and the surface of the tube 10 to be tested is observed to see if there are any cracks.

[0066] It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of this utility model. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A device for testing the coiling performance of a flexible pipe in a cryogenic environment, characterised in that, The utility model relates to a detection device for the curling performance of flexible pipe in low temperature environment, including: Supporting support, the supporting support hollowly forms installation cavity; Compression roller assembly, the compression roller assembly is set up in the installation cavity, the compression roller assembly is opened with first pass through the line hole for the pipe material that detects to pass, the compression roller assembly is used for adjusting and compacting the pipe material that detects along the length direction of compression roller assembly to the pipe material that detects; The curling assembly is set up in the installation cavity, the curling assembly is opened with second pass through the line hole, the curling assembly is used to drive the pipe material that detects rotates, to make the pipe material that detects wind on the curling assembly; Clamping assembly, the clamping assembly is set up in the installation cavity, the clamping assembly is used to clamp the pipe material that detects on corresponding to enter the installation cavity one end.

2. The detection device for the curling performance of flexible pipe in low temperature environment according to claim 1, wherein: The compression roller assembly includes a sliding guide, a sliding guide block is slidingly arranged on the sliding guide, the first pass through the line hole is arranged on the sliding guide block, and a positioning member is spirally arranged on one side of the sliding guide block, so that the sliding guide block can be fixed on the sliding guide by rotating the positioning member.

3. The detection device for the curling performance of flexible pipe in low temperature environment according to claim 2, wherein: The compression roller assembly further includes a first compression roller member and a second compression roller member, the first compression roller member and the second compression roller member are oppositely arranged, the first compression roller member is fixedly arranged on the sliding guide corresponding to the side close to the curling assembly, and the second compression roller member is movably arranged on the sliding guide corresponding to the side close to the curling assembly through a threaded adjusting assembly, so that the second compression roller member can move close to or away from the first compression roller member by rotating the threaded adjusting assembly.

4. The detection device for the curling performance of flexible pipe in low temperature environment according to claim 3, wherein: One end of the first compression roller member is connected with a damper.

5. The detection device for the curling performance of flexible pipe in low temperature environment according to any one of claims 2-4, wherein: The curling assembly includes a curling core member and a rotating motor, the second pass through the line hole is arranged on the curling core member, the curling core member is arranged in the installation cavity through an overhead seat, and the output end of the rotating motor is connected with one end of the curling core member.

6. The detection device for the curling performance of flexible pipe in low temperature environment according to claim 5, wherein: The clamping assembly includes a fixing member and a forward and reverse screw rod member, the forward and reverse screw rod member is arranged on the side away from the sliding guide of the curling assembly through the fixing member, the forward and reverse screw rod member is rotatably arranged on the fixing member, a first clamping member and a second clamping member are threadedly and slidingly arranged on the forward and reverse screw rod member, and the first clamping member and the second clamping member are oppositely arranged, so that the first clamping member and the second clamping member can move close to or away from each other by rotating the forward and reverse screw rod member.

7. The detection device for the curling performance of flexible pipe in low temperature environment according to claim 6, wherein: The fixing member is further provided with a guide member, the guide member is parallel to the positive and negative screw rod members, and the guide member passes through the first clamping member and the second clamping member.

8. The device for detecting the curling performance of the flexible pipe in a low-temperature environment according to claim 6 or 7, characterized in that, The support bracket is provided with a damping pad.

9. A device for testing the coiling properties of a flexible pipe according to any one of claims 6 to 8 in a cryogenic environment characterised by, Further comprising: A low-temperature test box, an inside of the low-temperature test box is hollow and is provided with a test cavity, and the support bracket is arranged in the test cavity; The low-temperature test box is further provided with an observation window.

10. The apparatus for testing the coiling performance of a flexible pipe in a cryogenic environment according to claim 9, wherein, Further comprising: A control cabinet, the control cabinet is connected with the low-temperature test box and the curling assembly to control the temperature in the low-temperature test box and the rotation of the curling assembly.

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