Intelligent cable bending test equipment

Abstract

The present invention discloses an intelligent cable bending test device, comprising a cable drum for unwinding or winding cables, a test wheel seat, a traction seat, a first adjustment component and a second adjustment component. The cable comes out of the cable drum and passes through a test wheel on the test wheel seat and is connected to the traction seat. The test wheel limits the bending of the cable, and the test wheel seat moves relative to the base to form a bending test on the cable. The first adjustment component is provided with a first contact wheel, and the second adjustment component is provided with a second contact wheel. The first contact wheel and the second contact wheel limit the cable after clamping the cable. The intelligent cable bending test device in the present invention is used for detecting the bending performance of the cable. The asynchronous rotation of the first adjustment component and the second adjustment component can put the cable in a twisted or non-twisted state, so that the cable can be tested for bending performance under different twisted states, thereby obtaining more accurate cable bending performance parameters and providing richer bending test scenarios.

Description

Technical Field

[0001] The present invention relates to the technical field of cable detection, and in particular to intelligent cable bending test equipment. Background Art

[0002] Cables are important carriers for power transmission and information transfer. Cable bending test is a test method to evaluate the durability, reliability and safety performance of cables and wires. Its basic principle is to simulate the bending and tensile stresses that cables and wires are subjected to during use by bending tests on cables and wires under certain conditions. Through the bending performance test, the performance changes of cables after repeated bending can be evaluated, including insulation resistance, conductor resistance, mechanical strength and appearance changes, etc., so as to ensure the safety and stability of cables in long-term use.

[0003] In the prior art, cable bending performance test equipment is mostly used to bend and drag the cable to simulate a working environment where the cable is frequently bent and stretched. When the cable is tested for performance, the cable may be twisted to varying degrees, which will affect the test results of the cable performance to a certain extent. In addition, the cable will also be affected by various mechanical stresses such as bending, stretching, and twisting in actual applications. Incorporating the cable torsion factor into the bending test can obtain a more comprehensive cable bending performance test scenario. Summary of the invention

[0004] The present invention addresses the limitation of the cable bending performance test equipment in the prior art that most of them simulate the cable bending and stretching working environment, and proposes an intelligent cable bending test equipment, which eliminates or adds torsion factors in the cable bending test equipment and provides more accurate and richer bending test scenarios.

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

[0006] An intelligent cable bending test device includes a base, a cable drum for unwinding or winding cables, a test wheel seat and a traction seat, at least two test wheels are arranged on the test wheel seat, the cable comes out of the cable drum and passes through the test wheels on the test wheel seat and then is connected to the traction seat, the test wheels perform bending limit on the cable, and the test wheel seat performs bending test on the cable by moving relative to the base. The intelligent cable bending test device also includes a first adjustment component and a second adjustment component, and the test wheel seat is located between the first adjustment component and the second adjustment component. At least one set of bending components is arranged on the test wheel seat, the bending component includes a first test wheel, a second test wheel and a rotating seat, the rotating seat is rotatably connected to the test wheel seat, the first test wheel and the second test wheel are symmetrically mounted on the rotating seat and are rotatably connected to the rotating seat, and the first adjustment component and the second adjustment component are respectively slidably connected to the base in the vertical direction to adapt to the position change between the first test wheel and the second test wheel.

[0007] The first adjustment assembly is provided with two first contact wheels for clamping the cable, and the second adjustment assembly is provided with two second contact wheels for clamping the cable. After the first contact wheel and the second contact wheel clamp the cable, they rotate asynchronously with the cable axis as the rotation center to achieve the twisting action of the cable, and keep the cable in a twisted state or a non-twisted state when performing the bending test. When the cable is twisted, the rotating seat adjusts the position of the first test wheel and the second test wheel by rotating, and keeps the portion of the cable between the first contact wheel and the second contact wheel from having a bending limit when the cable passes between the first test wheel and the second test wheel.

[0008] Preferably, the first adjustment assembly includes a first sleeve, a second sleeve, a first clamping member, a second clamping member and a first outer gear ring. The second sleeve is located inside the first sleeve and is coaxially arranged with the first sleeve. The first clamping member and the second clamping member have the same structure and are symmetrically arranged on the second sleeve. The first clamping member includes a fourth functional cylinder and a first contact wheel. The first end of the fourth functional cylinder is fixedly connected to the second sleeve, and the second end of the fourth functional cylinder is rotatably connected to the first contact wheel. The cable is clamped between the two first contact wheels, and the second sleeve is connected to the first outer gear ring for driving the second sleeve to rotate.

[0009] Preferably, the intelligent cable bending test equipment also includes a second movable bracket for installing the first adjustment component, the second movable bracket is provided with a first gear for meshing with the first outer gear ring and a first movable bracket, the first movable bracket and the second movable bracket slide in a horizontal direction, and the first movable bracket is provided with two third clamping members symmetrically arranged up and down, the third clamping member includes a first limit block and a third functional cylinder, the first limit block is connected to the first movable bracket through the third functional cylinder, the axis of the third functional cylinder is vertically arranged, and there is a gap between the first limit block and the first contact wheel on the first adjustment component.

[0010] Preferably, a transmission assembly for driving the first movable bracket to move in a horizontal direction is provided on the second movable bracket, and the transmission assembly includes a first power shaft, a second gear, a third gear, a rack and a second power shaft. The first power shaft and the second power shaft are respectively rotationally connected to the second movable bracket, the second gear is coaxially fixedly connected to the first power shaft with the first gear, the third gear is fixedly connected to the second power shaft, the second power shaft is vertically arranged to the first power shaft, the third gear includes a bevel tooth surface portion located at one end and a spur tooth surface portion located at the other end, the second gear is meshed with the bevel tooth surface portion of the third gear, the spur tooth surface portion of the third gear is meshed with the rack, and the rack is fixedly connected to the first movable bracket.

[0011] Preferably, it also includes two second limit blocks which are symmetrically arranged up and down, the two second limit blocks are located between the first movable bracket and the first adjustment assembly, and the two second limit blocks are fixedly connected to the second end of the fourth functional cylinder through the third connecting bracket.

[0012] Preferably, a third guide wheel is provided on the first movable bracket, and the top of the third guide wheel is located in the same horizontal plane as the top of the first limiting block located below.

[0013] Preferably, the traction seat is provided with a rotatable connection block for connecting the cable, and the rotatable connection block is rotatably connected to the traction seat.

[0014] Preferably, a storage space is provided on the traction seat, and the storage space is used to place the counterweight.

[0015] Preferably, a sliding seat and a lead screw are provided on the base, the lead screw is arranged horizontally, a matching nut is provided on the lead screw, and the nut is fixedly connected to the sliding seat.

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

[0017] 1. This intelligent cable bending test equipment is used to detect the bending performance of cables. The cable is bent by the test wheel on the test wheel seat. The traction seat applies pressure and tensile load to the cable. The test wheel seat reciprocates in the horizontal direction to test the bending performance of the cable. The traction seat can adjust the cable load by adding or removing counterweights. The test wheel can move according to the rotation of the rotating seat. The bending degree of the cable is adjusted by the movement of the test wheel to improve the applicability of the cable.

[0018] 2. The intelligent cable bending test equipment is provided with a first adjustment component and a second adjustment component. The first adjustment component and the second adjustment component can limit the cable and carry the cable to rotate. The asynchronous rotation between the first adjustment component and the second adjustment component can form a torsional action of the cable portion between the first adjustment component and the second adjustment component. The above torsional action can return the torsional state of the cable portion between the first adjustment component and the second adjustment component to a normal state, and perform a bending performance test of the cable in a non-twisted state; of course, the torsional action can also form a target torsional state of the cable portion between the first adjustment component and the second adjustment component, and perform a bending performance test of the cable in a target torsional state. The intelligent cable bending test equipment can perform a bending performance test on the cable under accurate torsional factors to obtain more accurate cable bending performance parameters, while also providing richer bending test scenarios to meet the testing needs of different cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of the intelligent cable bending test equipment (during bending test);

[0020] Figure 2 This is a schematic diagram of the structure of the front side of the intelligent cable bending test equipment;

[0021] Figure 3 This is a structural schematic diagram of the second movable bracket of the intelligent cable bending test equipment;

[0022] Figure 4 This is a structural schematic diagram of the front side of the second movable bracket of the intelligent cable bending test equipment;

[0023] Figure 5 This is a structural schematic diagram of the cross section at AA of the second movable bracket of the intelligent cable bending test equipment;

[0024] Figure 6 This is a structural schematic diagram of the front side of the third movable bracket of the intelligent cable bending test equipment;

[0025] Figure 7 This is a schematic diagram of the structure of the intelligent cable bending test equipment (when the cable is twisted).

[0026] In the figure: 1, base; 2, test wheel seat; 3, first mobile bracket; 4, first adjustment assembly; 5, second adjustment assembly; 6, traction seat; 7, second limit block; 8, cable; 9, first functional cylinder; 10, cable drum; 11, second mobile bracket; 12, third mobile bracket; 13, second functional cylinder; 14, sliding seat; 15, guide frame; 16, support plate

[0027] 21. First test wheel; 22. Second test wheel; 23. Rotating seat; 31. First stop block; 32. Third functional cylinder; 33. Third guide wheel; 41. First sleeve; 42. Second sleeve; 43. First clamping member; 44. Second clamping member; 45. First connecting bracket; 46. First outer gear ring; 431. Fourth functional cylinder; 432. Second connecting bracket; 433. First contact wheel; 51. Second contact wheel; 52. Second outer gear ring; 61. Rotating connecting block; 62. Storage space; 62 , storage space; 71, third connecting bracket; 111, first motor; 112, first gear; 113, first power shaft; 114, second gear; 115, third gear; 116, rack; 117, second power shaft; 121, second motor; 122, fourth gear; 123, fourth guide wheel; 141, lead screw; 142, third motor; 151, first guide wheel; 152, second guide wheel; 153, fourth connecting bracket; 154, elastic support member; 161, fifth functional cylinder. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] Reference Figure 1 and Figure 2 An intelligent cable bending test device includes a base 1 and a cable drum 10, a guide frame 15, a second mobile bracket 11, a test wheel seat 2, a third mobile bracket 12 and a traction seat 6 installed on the base 1, wherein the cable drum 10 is used for unwinding or rewinding the cable 8, the guide frame 15 is used for guiding the cable 8, the test wheel seat 2 is used for bending and limiting the cable 8, and the traction seat 6 is used for applying a tensile load to the cable 8. When performing a bending performance test, the cable 8 comes out of the cable drum 10 and passes through the guide frame 15, the second mobile bracket 11, the test wheel seat 2 and the third mobile bracket 12 in sequence to be connected to the traction seat 6, and the test wheel seat 2 moves relative to the base 1 to form a bending test on the cable 8.

[0030] One end of the cable drum 10 is connected to a fifth motor installed on the base 1 . The fifth motor is used to drive the cable drum 10 to rotate so that the cable 8 is wound on the cable drum 10 or released from the cable drum 10 .

[0031] Further, the lower part of the guide frame 15 is fixedly connected to the base 1, and the guide frame 15 is provided with a first guide wheel 151 and a second guide wheel 152, and the second guide wheel 152 is rotatably connected to the guide frame 15, and the guide frame 15 is provided with an elastic support member 154, and the elastic support member 154 includes a coaxially arranged spring and a telescopic rod, one end of the elastic support member 154 is fixedly connected to the guide frame 15, and the other end of the elastic support member 154 is provided with a fourth connecting bracket 153, and the first guide wheel 151 is rotatably connected to the fourth connecting bracket 153. The elastic support member 154 is used for tensioning and adjusting the cable 8.

[0032] refer to Figure 2 The base 1 is provided with a sliding seat 14, a lead screw 141 and a third motor 142. The sliding seat 14 is slidably connected to the base 1 in the horizontal direction. The lead screw 141 is also arranged horizontally. The lead screw 141 is provided with a nut. The sliding seat 14 is fixedly connected to the nut on the lead screw 141. The third motor 142 is fixedly connected to one end of the lead screw 141. The third motor 142 is used to drive the lead screw 141 to rotate. The rotation of the lead screw 141 forms the movement of the nut and the sliding seat 14 in the horizontal direction.

[0033] refer to Figure 2The above-mentioned sliding seat 14 is fixedly connected with a test wheel seat 2, and the test wheel seat 2 can move in the horizontal direction following the sliding seat 14. A group of bending components is arranged on the test wheel seat 2, and the bending components include a first test wheel 21, a second test wheel 22 and a rotating seat 23. The rotating seat 23 is rotatably connected to the test wheel seat 2 through a slewing bearing, and a fourth motor for driving the rotating seat 23 to rotate is arranged on the test wheel seat 2. The first test wheel 21 and the second test wheel 22 are symmetrically mounted on the rotating seat 23, and the first test wheel 21 and the second test wheel 22 are respectively rotatably connected to the rotating seat 23. The cable 8 forms a bending state after passing through the first test wheel 21 and the second test wheel 22. The combination of the first test wheel 21 and the second test wheel 22 can form a bending limit for the cable 8. The rotation of the rotating seat 23 can change the positions of the first test wheel 21 and the second test wheel 22 on the test wheel seat 2, thereby changing the bending state of the cable 8 and adjusting the bending degree of the cable.

[0034] The test wheel seat 2 is located between the second mobile bracket 11 and the third mobile bracket 12. The second mobile bracket 11 is connected to the base 1 through the first functional cylinder 9, and the third mobile bracket 12 is connected to the base 1 through the second functional cylinder 13. The axes of the first functional cylinder 9 and the second functional cylinder 13 are respectively arranged vertically. The first functional cylinder 9 is used to move the second mobile bracket 11 in the vertical direction so that the second mobile bracket 11 adapts to the position change of the second test wheel 22; the second functional cylinder 13 is used to move the third mobile bracket 12 in the vertical direction so that the third mobile bracket 12 adapts to the position change of the first test wheel 21.

[0035] The first adjustment assembly 4 is installed on the second movable bracket 11. Figure 4 and Figure 5 The first adjustment assembly 4 includes a first sleeve 41, a second sleeve 42, a first clamp 43 and a second clamp 44. The second sleeve 42 is located inside the first sleeve 41. The second sleeve 42 is coaxially arranged with the first sleeve 41 and is rotatably connected. The first clamp 43 and the second clamp 44 are symmetrically arranged on the second sleeve 42. The first clamp 43 and the second clamp 44 have the same structure. The first clamp 43 includes a fourth functional cylinder 431 and a first contact wheel 433. The first end of the fourth functional cylinder 431 is fixedly connected to the second sleeve 42. The second end of the fourth functional cylinder 431 is fixedly connected to the second connecting bracket 432. The first contact wheel 433 is rotatably connected to the second connecting bracket 432. The cable 8 can be clamped between the first contact wheel 433 of the first clamp 43 and the second clamp 44. Since the first contact wheel 433 is rotatably connected to the second connecting bracket 432, the cable 8 can move axially relative to the second connecting bracket 432, but cannot rotate radially relative to the second connecting bracket 432.

[0036] For further reference, Figure 4One side of the second sleeve 42 is connected to the first outer gear ring 46 through the first connecting bracket 45. The second movable bracket 11 is provided with a first motor 111 and a first gear 112. The first gear 112 is fixedly sleeved on the first power shaft 113. The first power shaft 113 is connected to the output shaft of the first motor 111 through a coupling. The first gear 112 is meshed with the first outer gear ring 46. The first motor 111 drives the first outer gear ring 46 to rotate through the first gear 112, so that the second sleeve 42 rotates relative to the first sleeve 41, and the cable 8 rotates radially relative to the first sleeve 41.

[0037] refer to Figure 6 The third movable bracket 12 is provided with a second adjustment assembly 5, which has the same structure as the first adjustment assembly 4. The second adjustment assembly 5 is provided with a second contact wheel 51 for clamping the cable 8 and a second outer gear ring 52 for realizing the rotation of the second contact wheel 51. The third movable bracket 12 is provided with a second motor 121 and a fourth gear 122. The second motor 121 is used to drive the fourth gear 122 to rotate, and the fourth gear 122 is meshed with the second outer gear ring 52. The second motor 121 drives the second outer gear ring 52 to rotate through the fourth gear 122, so that the cable 8 rotates radially relative to the third movable bracket 12.

[0038] In this embodiment, the first functional cylinder 9 adjusts the positions of the second movable bracket 11 and the first adjustment assembly 4, and always keeps the top surface of the first contact wheel 433 located at the bottom and the top surface of the second test wheel 22 at the same horizontal position. The second functional cylinder 13 adjusts the positions of the third movable bracket 12 and the second adjustment assembly 5, and always keeps the top surface of the second contact wheel 51 located at the bottom and the top surface of the first test wheel 21 at the same horizontal position.

[0039] When testing the bending performance of cable 8, refer to Figure 2 , the first test wheel 21 and the second test wheel 22 are arranged up and down, and the cable 8 passes through the second test wheel 22 and the first test wheel 21, forming a bent state of the cable 8. The above-mentioned test wheel seat 2 is located between the first adjustment component 4 and the second adjustment component 5. To facilitate the twisting of the cable 8, when the cable 8 needs to change the twisting state, the fourth motor drives the rotating seat 23 to rotate counterclockwise, and the first function cylinder 9 and the second function cylinder 13 work at the same time, so that the second mobile bracket 11 adapts to the position change of the second test wheel 22 and the third mobile bracket 12 adapts to the position change of the first test wheel 21. Reference Figure 7At this time, the cable 8 can be horizontally extended and sequentially pass through the first contact wheel 433, the second test wheel 22, the first test wheel 21 and the second contact wheel 51. At this time, there is no bending limit in the portion of the cable 8 between the first contact wheel 433 and the second contact wheel 51. When the first contact wheel 433 or the second contact wheel 51 rotates with the cable 8 axis as the rotation center, the cable 8 can easily rotate radially, and the second test wheel 22 and the first test wheel 21 do not interfere with the rotation of the cable 8.

[0040] In this embodiment, reference Figure 6 The third mobile bracket 12 is provided with a fourth guide wheel 123. The cable 8 is guided by the fourth guide wheel 123 after passing through the second contact wheel 51, and then connected to the traction seat 6. The traction seat 6 is provided with a rotating connection block 61 for connecting the cable 8. The rotating connection block 61 is rotatably connected to the traction seat 6 to adapt to the radial rotation of the cable 8 of the line segment out of the second contact wheel 51.

[0041] For further reference, Figure 3 and Figure 4 The second movable bracket 11 is also provided with a first movable bracket 3, and the first movable bracket 3 slides with the second movable bracket 11 in the horizontal direction. The first movable bracket 3 is provided with two third clamping members symmetrically arranged up and down, and the third clamping member includes a first limit block 31 and a third functional cylinder 32. The first limit block 31 is connected to the first movable bracket 3 through the third functional cylinder 32, and the axis of the third functional cylinder 32 is vertically arranged. The third functional cylinder 32 is used to move with the first limit block 31 to achieve the clamping and limiting of the cable 8 by the first limit block 31. When the cable 8 rotates radially, the first limit block 31 is used to limit the rotation range of the cable 8 in the axial direction to prevent the torsion of the cable 8 from affecting the outlet and reeling of the cable drum 10.

[0042] The second movable bracket 11 is provided with a transmission assembly for driving the first movable bracket 3 to move in the horizontal direction, and the transmission assembly includes a first power shaft 113, a second gear 114, a third gear 115, a rack 116 and a second power shaft 117. The first power shaft 113 and the second power shaft 117 are respectively connected to the second movable bracket 11 in rotation, the first power shaft 113 is connected to the output shaft of the first motor 111, the second gear 114 is coaxially fixedly connected to the first power shaft 113 with the first gear 112, the second power shaft 117 is arranged vertically with the first power shaft 113, and the third gear 115 is fixedly connected to the second power shaft 117. Among them, the second gear 114 is a bevel gear, the third gear 115 includes a bevel tooth surface portion at one end and a spur tooth surface portion at the other end, and the second gear 114 meshes with the bevel tooth surface portion of the third gear 115. The rack 116 is fixedly connected to the lower part of the first movable bracket 3, and the rack 116 meshes with the spur tooth surface portion of the third gear 115.

[0043] The first motor 111 can rotate with the first power shaft 113, so that the second gear 114 and the first gear 112 rotate synchronously, realizing the rotation of the first outer gear ring 46, and the second gear 114 rotates with the third gear 115, realizing the movement of the rack 116 and the first movable bracket 3. There is a gap between the first limit block 31 and the first contact wheel 433 on the first adjustment assembly 4, and the gap is used to accommodate the torsion generated when the cable 8 rotates radially relative to the first sleeve 41.

[0044] When the cable 8 rotates radially relative to the first sleeve 41, the cables 8 on the outgoing and incoming sides of the first contact wheel 433 rotate, the cable 8 on the outgoing side of the first contact wheel 433 forms the torsion required for the test, and the cable 8 on the incoming side of the first contact wheel 433 generates excess torsion between the first contact wheel 433 and the first limit block 31. To reduce the influence of the excess torsion on the cable 8, when the cable 8 rotates radially relative to the first sleeve 41, the first movable bracket 3 and the first limit block 31 move close to the first contact wheel 433 to adapt to the length change of the torsion of the cable 8.

[0045] refer to Figure 2 The second movable bracket 11 is also provided with two second limit blocks 7, which are located between the first movable bracket 3 and the first adjustment assembly 4, and are respectively fixedly connected to the second connecting bracket 432 through the third connecting bracket 71. The two second limit blocks 7 are symmetrically arranged up and down, and the second limit blocks 7 can move with the second connecting bracket 432 to clamp and limit the cable 8. The second limit block 7 can rotate synchronously with the first contact wheel 433, and the second limit block 7 is used to isolate the first contact wheel 433 and the first limit block 31, so that the torsion of the cable 8 on the incoming line side of the first contact wheel 433 is located between the second limit block 7 and the first limit block 31.

[0046] Furthermore, a third guide wheel 33 is provided on the first movable bracket 3 , and the top of the third guide wheel 33 is located at the same horizontal plane as the top of the first limit block 31 located below. The third guide wheel 33 is used to guide the cable 8 to enter between the two first limit blocks 31 .

[0047] refer to Figure 2 and Figure 7 In this embodiment, the traction seat 6 is slidably connected to the base 1 in the vertical direction. A storage space 62 is provided on the traction seat 6. The storage space 62 is used to place a counterweight. The traction seat 6 can adjust the cable tensile load by adding or reducing the counterweight.

[0048] Furthermore, the base 1 is provided with a support plate 16 below the traction seat 6. The support plate 16 is connected to the base through a fifth functional cylinder 161. The axis of the fifth functional cylinder 161 is vertically arranged. The fifth functional cylinder 161 is used to drive the support plate 16 to move in the vertical direction. When the traction seat 6 provides a tensile load for the cable 8, the support plate 16 does not contact the traction seat 6 and does not support the traction seat 6. When the intelligent cable bending test equipment is not working or the cable 8 is torsionally adjusted, the support plate 16 contacts the traction seat 6 and supports the traction seat 6.

[0049] The working process of this intelligent cable bending test equipment is:

[0050] (1) Routing process

[0051] The support plate 16 supports the traction seat 6, and a proper counterweight is placed on the traction seat 6. The fourth motor drives the rotating seat 23, so that the first test wheel 21 and the second test wheel 22 are in proper positions. After the cable 8 comes out of the cable drum 10, it passes through the first guide wheel 151, the second guide wheel 152, the third guide wheel 33, the first limit block 31 on the first mobile bracket 3, the first contact wheel 433 on the second mobile bracket 11, the second test wheel 22, the first test wheel 21, the second contact wheel 51 on the third mobile bracket 12 and the fourth guide wheel 123 in sequence to be connected to the rotating connection block 61 of the traction seat 6.

[0052] (2) Tensile bending test

[0053] The cable 8 passes through the second test wheel 22 and the first test wheel 21, forming a bending state of the cable 8. The first limit block 31 clamps the cable 8, the support plate 16 moves downward to leave the traction seat 6, the traction seat 6 generates a tensile load on the cable 8, the third motor 142 drives the lead screw 141 to rotate, the sliding seat 14 and the test wheel seat 2 reciprocate in the horizontal direction, the second test wheel 22 and the first test wheel 21 move relative to the cable 8, and the bending performance of the cable 8 under the tensile state is tested.

[0054] (3) Adjustment and testing of cable torsion state

[0055] The fourth motor drives the rotating seat 23 to rotate counterclockwise, and the second test wheel 22 and the first test wheel 21 change their positions. At the same time, the first function cylinder 9 and the second function cylinder 13 work, and the support plate 16 moves upward to support the traction seat 6; the second mobile bracket 11 rises, and the third mobile bracket 12 falls, so that the second mobile bracket 11 adapts to the position change of the second test wheel 22 and the third mobile bracket 12 adapts to the position change of the first test wheel 21. Figure 7 At this time, the cable 8 between the first contact wheel 433 and the second contact wheel 51 is in a horizontally extending state and passes through the second test wheel 22 and the first test wheel 21 in sequence;

[0056] The first motor 111 drives the first outer gear ring 46 to rotate through the first gear 112, so that the first contact wheel 433 rotates relative to the second movable bracket 11; the second motor 121 drives the second outer gear ring 52 to rotate through the fourth gear 122, so that the second contact wheel 51 rotates relative to the third movable bracket 12, and the first outer gear ring 46 and the second outer gear ring 52 rotate asynchronously, so that the torsional state of the cable 8 between the first contact wheel 433 and the second contact wheel 51 changes. The cable 8 on the outgoing side of the second outer gear ring 52 does not generate torsion due to the rotation of the rotating connecting block 61 of the traction seat 6. At the same time, the first motor 111 can rotate with the second gear 114 and the third gear 115 through the first power shaft 113, so that the rack 116 and the first movable bracket 3 generate a movement of moving in the direction close to the first adjustment component 4, and the interval between the first limit block 31 and the first contact wheel 433 becomes smaller, so as to adapt to the change in the length of the torsion of the cable 8 on the incoming side of the first outer gear ring 46;

[0057] When the twisting action of the cable 8 can return the twisted state of the cable portion between the first adjustment component and the second adjustment component to the normal state, the cable 8 will be tested for its bending performance in a non-twisted state. When the twisting action of the cable 8 can form the cable portion between the first adjustment component and the second adjustment component into a target twisted state, the cable 8 will be tested for its bending performance in the target twisted state.

[0058] After the cable 8 is twisted, the fourth motor drives the rotating seat 23 to rotate clockwise, so that the first test wheel 21 and the second test wheel 22 continue to limit the bending of the cable 8, and the support plate 16 moves downward to leave the traction seat 6. The traction seat 6 generates a tensile load on the cable 8. The third motor 142 drives the screw 141 to rotate, and the sliding seat 14 and the test wheel seat 2 reciprocate in the horizontal direction. The second test wheel 22 and the first test wheel 21 move relative to the cable 8, and the bending performance of the cable 8 is tested in a non-twisted state or a state with a target twist degree, so as to obtain more accurate cable bending performance parameters. At the same time, it also provides more abundant bending test scenarios to meet the testing needs of different cables.

[0059] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An intelligent cable bending test device, comprising a base, a cable drum for unwinding or winding cables, a test wheel seat and a traction seat, wherein the test wheel seat is provided with at least two test wheels, the cable comes out of the cable drum and passes through the test wheels on the test wheel seat and then is connected to the traction seat, the test wheels perform bending limit on the cable, and the test wheel seat performs bending test on the cable by moving relative to the base, characterized in that: It also includes a first adjustment assembly and a second adjustment assembly, the test wheel seat is located between the first adjustment assembly and the second adjustment assembly, at least one set of bending assemblies is arranged on the test wheel seat, the bending assembly includes a first test wheel, a second test wheel and a rotating seat, the rotating seat is rotatably connected to the test wheel seat, the first test wheel and the second test wheel are symmetrically mounted on the rotating seat and are rotatably connected to the rotating seat, and the first adjustment assembly and the second adjustment assembly are respectively slidably connected to the base in the vertical direction to adapt to the position change between the first test wheel and the second test wheel; The first adjustment assembly is provided with two first contact wheels for clamping the cable, and the second adjustment assembly is provided with two second contact wheels for clamping the cable. After clamping the cable, the first contact wheel and the second contact wheel perform asynchronous rotation with the cable axis as the rotation center, so as to achieve a twisting action of the cable and maintain the cable in a twisted state or a non-twisted state during a bending test; When the cable is twisting, the rotating seat adjusts the position of the first test wheel and the second test wheel by rotating, so that when the cable passes between the first test wheel and the second test wheel, there is no bending limit on the portion of the cable located between the first contact wheel and the second contact wheel.

2. The intelligent cable bending test equipment according to claim 1, characterized in that: The first adjustment assembly includes a first sleeve, a second sleeve, a first clamping member, a second clamping member and a first outer gear ring. The second sleeve is located inside the first sleeve and is coaxially arranged with the first sleeve. The first clamping member and the second clamping member have the same structure and are symmetrically arranged on the second sleeve. The first clamping member includes a fourth functional cylinder and a first contact wheel. The first end of the fourth functional cylinder is fixedly connected to the second sleeve, and the second end of the fourth functional cylinder is rotatably connected to the first contact wheel. The cable is clamped between the two first contact wheels. The second sleeve is connected to the first outer gear ring for driving the second sleeve to rotate.

3. The intelligent cable bending test equipment according to claim 2, characterized in that: It also includes a second movable bracket for installing the first adjustment component, the second movable bracket is provided with a first gear for meshing with the first outer gear ring and a first movable bracket, the first movable bracket and the second movable bracket slide in the horizontal direction, the first movable bracket is provided with two third clamping members symmetrically arranged up and down, the third clamping member includes a first limit block and a third functional cylinder, the first limit block is connected to the first movable bracket through the third functional cylinder, the axis of the third functional cylinder is vertically arranged, and there is a gap between the first limit block and the first contact wheel on the first adjustment component.

4. The intelligent cable bending test equipment according to claim 3, characterized in that: The second movable bracket is provided with a transmission component for driving the first movable bracket to move in a horizontal direction. The transmission component includes a first power shaft, a second gear, a third gear, a rack and a second power shaft. The first power shaft and the second power shaft are respectively rotatably connected to the second movable bracket. The second gear is coaxially fixedly connected to the first power shaft with the first gear, and the third gear is fixedly connected to the second power shaft. The second power shaft is vertically arranged with the first power shaft. The third gear includes a bevel tooth surface portion at one end and a spur tooth surface portion at the other end. The second gear is meshed with the bevel tooth surface portion of the third gear, and the spur tooth surface portion of the third gear is meshed with the rack, and the rack is fixedly connected to the first movable bracket.

5. The intelligent cable bending test equipment according to claim 4, characterized in that: It also includes two second limit blocks symmetrically arranged up and down, the two second limit blocks are located between the first movable bracket and the first adjustment component, and the two second limit blocks are fixedly connected to the second end of the fourth functional cylinder through the third connecting bracket respectively.

6. The intelligent cable bending test equipment according to any one of claims 3 to 5, characterized in that: The first movable bracket is provided with a third guide wheel, and the top of the third guide wheel is located in the same horizontal plane as the top of the first limiting block located below.

7. The intelligent cable bending test equipment according to any one of claims 1 to 5, characterized in that: The traction seat is provided with a rotating connection block for connecting the cable, and the rotating connection block is rotatably connected to the traction seat.

8. The intelligent cable bending test equipment according to claim 7, characterized in that: The traction seat is provided with a storage space, and the storage space is used for placing a counterweight.

9. The intelligent cable bending test equipment according to any one of claims 1 to 5, characterized in that: A sliding seat and a lead screw are arranged on the base, the lead screw is arranged horizontally, a matching nut is arranged on the lead screw, and the nut is fixedly connected to the sliding seat.

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