Elevator electrical cable strength detection device

Abstract

The invention relates to the technical field of electrical cable strength detection devices, in particular to an elevator electrical cable strength detection device which comprises a detection frame, a sample belt releasing mechanism, a dynamic balance weight component and a clamping frame are installed at the top of the detection frame, a to-be-detected bearing body is wound on the sample belt releasing mechanism, and a lifting module is installed on the detection frame. The lifting module is in transmission connection with a bracket, a measuring seat and a pull frame are sequentially and slidably installed on the inner wall of the detection frame and at the position corresponding to the upper portion of the bracket from bottom to top, a set of pressure sensors are installed between the pull frame and the measuring seat, and the dynamic balance weight component impacts the pull frame or carries out dynamic balance weight on the pull frame. The device has the beneficial effects that when the device works, on one hand, the impact resistance and tensile strength of the to-be-detected bearing body can be detected, and on the other hand, the device can also realize the strength detection of the to-be-detected bearing body under different temperature items and the strength detection of the to-be-detected bearing body under different wear strengths.

Description

Technical Field

[0001] The invention relates to the technical field of electrical cable strength detection devices, in particular to an elevator electrical cable strength detection device. Background Art

[0002] After the elevator cable is produced and processed, the strength of the finished elevator cable needs to be tested. Only after the elevator cable has passed the strength test can it be applied to actual projects.

[0003] In the prior art, the patent document with publication number CN211085936U discloses a finished elevator cable strength detection device, which includes an electronic tensile testing machine body and a control mechanism. The electronic tensile testing machine body is electrically connected to the control mechanism. The electronic tensile testing machine body is provided with a tensile mechanism and a fixing mechanism. The bottom end of the tensile mechanism and the top end of the fixing mechanism are respectively provided with two sets of fixing cards. The above device can read the strength detection result of the finished elevator cable through the control mechanism. However, the above strength detection device has the following technical problems when used: 1. It is not convenient to realize rapid and repeated detection of cable parts; 2. It is not convenient to test the impact resistance and tensile strength of the cable, the strength of the cable under different temperature items, and the strength of the cable under different wear intensities; Based on this, the present invention provides an elevator electrical cable strength detection device to solve the problems raised in the above background technology. Summary of the invention

[0004] In view of the technical problems existing in the prior art, the present invention provides an elevator electrical cable strength detection device to solve the problems that the existing detection devices are not convenient for realizing rapid and repeated detection when detecting the load-bearing body to be tested, are not convenient for realizing impact resistance and tensile strength detection of the load-bearing body to be tested, are not convenient for realizing strength detection of the load-bearing body to be tested under different temperature items, and are not convenient for realizing strength detection of the load-bearing body to be tested under different wear intensities.

[0005] The technical solution of the present invention for solving the above-mentioned technical problems is as follows: An elevator electrical cable strength detection device comprises an inspection frame, a sample tape pay-out mechanism, a dynamic counterweight component and a clamping frame are respectively installed on the top of the inspection frame, a load-bearing body to be tested is wound on the sample tape pay-out mechanism, a lifting module is installed on the inspection frame, a support seat is transmission-connected on the lifting module, a measuring seat and a pulling frame are slidably installed in sequence from bottom to top on the inner wall of the inspection frame and at a position corresponding to the top of the support seat, a group of pressure sensors are installed between the pulling frame and the measuring seat, the dynamic counterweight component impacts or dynamically counterweights the pulling frame, a clamping component for clamping the load-bearing body to be tested is installed between the clamping frame and the pulling frame, and a wear additional component is installed on the inspection frame and at a position corresponding to the clamping frame and the pulling frame.

[0006] Based on the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, the sample tape releasing mechanism includes a roller rotatably mounted on the top of the inspection frame, a first motor is mounted on the top of the inspection frame, an output shaft end of the first motor is fixedly connected to the roller, the tail end of the test carrier is fixedly connected to the roller, two guide wheels and a clamping wheel are rotatably mounted on the inspection frame, and the guide wheel and the clamping wheel are both in contact with the test carrier.

[0008] The beneficial effect of adopting the above further scheme is that when the inspection operation of the carrier to be tested is carried out, the roller releases the carrier to be tested to a specified length and then carries out the inspection operation of the carrier to be tested. When the inspection of a certain section of the carrier to be tested is completed, the roller releases the carrier to be tested to a specified length again, which is convenient for continuous repeated testing and repeated strength testing of the carrier to be tested. Through repeated strength testing, the data accuracy of the detection device can be effectively improved.

[0009] Further, the dynamic counterweight component includes a counterweight roller rotatably mounted on the inspection frame and a liquid storage tank fixedly mounted on the inspection frame, a second motor is mounted on the inspection frame, an output shaft end of the second motor is fixedly connected to the counterweight roller, a pump body is mounted on the liquid storage tank, a liquid conducting cavity is fixedly opened inside the counterweight roller, a liquid outlet port of the pump body is rotatably connected to the liquid conducting cavity through a pump liquid pipe, two hanging tubes are wound on the counterweight roller, the tail ends of the two hanging tubes are fixedly connected to the liquid conducting cavity, one end of the two hanging tubes away from the liquid conducting cavity is connected to the counterweight box, a tension sensor is provided on the two hanging tubes, and a corrugated section cooperating with the tension sensor is provided on the two hanging tubes, a single-chip microcomputer is mounted on the inspection frame, and the data ends of the pressure sensor and the two tension sensors are data-connected to the single-chip microcomputer.

[0010] The beneficial effect of adopting the above further scheme is that when it is necessary to perform static counterweight detection on the load-bearing body to be tested, first, under the driving action of the bracket, the pull frame is arranged to the specified height, and after the pull frame is arranged to the specified height, the test length of the load-bearing body to be tested is then limited, and after the test length of the load-bearing body to be tested is limited, the clamping component clamps the load-bearing body to be tested, and after the clamping component completes clamping the load-bearing body to be tested, the position of the pull frame is then limited, and after the position of the pull frame is limited, the bracket is sufficiently away from the measuring seat, and after the bracket is away from the measuring seat, the pull frame is then placed in a free and movable state; During the static weight test, the bottom surfaces of the two weight boxes are both fitted with the pull frame. After the weight boxes are fitted with the pull frame, liquid is quantitatively delivered to the inside of the weight boxes, and finally the two weight boxes have the specified weight. After the two weight boxes have the specified weight, the static weight test is then carried out on the load-bearing body to be tested; When it is necessary to perform impact counterweight detection on the load-bearing body to be tested, first, under the driving action of the support seat, the pull frame is arranged to the specified height. After the pull frame is arranged to the specified height, the test length of the load-bearing body to be tested is then limited. After the test length of the load-bearing body to be tested is limited, the clamping component clamps the load-bearing body to be tested. After the clamping component has clamped the load-bearing body to be tested, the position of the pull frame is then limited. After the position of the pull frame is limited, the support seat is sufficiently away from the measuring seat. After the support seat is away from the measuring seat, the pull frame is then placed in a free and movable state. During impact counterweight, the counterweight box first maintains a set distance from the pull frame. After the counterweight box and the pull frame maintain the set distance, the interior of the two counterweight boxes is then quantitatively injected with liquid, and finally the two counterweight boxes have the specified counterweight weight. During impact testing, the counterweight roller rotates at high speed, and the rotation speed of the counterweight roller is 1.2 times the free fall speed of the counterweight box. After the counterweight box falls freely from the set height, the impact resistance test under different impact strength conditions is then carried out on the load-bearing body to be tested.

[0011] Furthermore, the clamping component includes a clamping screw rotatably installed between the inner surfaces of the clamping frame, a clamping motor is installed on the side of the clamping frame, the output shaft end of the clamping motor is fixedly connected to the clamping screw, and the clamping screw is respectively provided with a positive thread section and a negative thread section, and an active clamp is transmission-installed on the positive thread section and the negative thread section, and the two active clamps are both slidably connected to the clamping frame, and the inner wall of the pull frame is slidably connected to two follow-up clamps, and the top surfaces of the two follow-up clamps are installed with synchronization guide rods, and the two synchronization guide rods are respectively fixedly connected to the two active clamps.

[0012] Furthermore, the clamping component also includes multiple groups of limit members fixed between the inner surfaces of the clamping frame and the pulling frame, each limit member includes two symmetrically arranged clamping rods, the clamping frame and the pulling frame are rotatably connected to the clamping rods at corresponding positions, and a limit gap is fixedly arranged between the two clamping rods to cooperate with the hanging tube and the carrier to be tested, and a through hole is opened inside the active clamp and the follower clamp and at the position corresponding to each clamping rod, and the radius of the through hole is 1.1 times the radius of the clamping rod.

[0013] The beneficial effect of adopting the above-mentioned further scheme is that when conducting a strength test on the carrier to be tested, a set spacing is first maintained between the pulling frame and the clamping frame, and then the detected length of the carrier to be tested is limited during a single test. After the length is limited, the carrier to be tested passes through the gap, and under the driving action of the clamping screw, the two active clamps and the two driven clamps approach each other, and then the carrier to be tested is clamped, and the movable range of the carrier to be tested is realized by setting a plurality of limit members.

[0014] Furthermore, electric heating blocks are installed inside the active clamp, the follower clamp and the roller, and the radius of the carrier to be tested is 1.1 times the radius of the hanging pipe.

[0015] The beneficial effect of adopting the above further solution is that, when in use, the electric heating block is set to limit the release temperature of the carrier to be tested when it is released from the roll and the temperature of the active clamp and the follower clamp when performing the clamping test; By limiting the temperature of the tested carrier during testing, the influence of the temperature condition on the strength of the tested carrier can be tested; When a single strength test of the carrier to be tested is completed and the carrier to be tested is broken, the clamping component loses its clamping effect on the carrier to be tested. After the clamping component loses its clamping effect on the carrier to be tested, the roller rewinds the carrier to be tested to a specified length, and then the clamping component re-clamps the carrier to be tested. After the clamping component re-clamps the carrier to be tested, repeated strength testing of the carrier to be tested can be carried out.

[0016] Furthermore, the wear-adding component includes a shaking frame slidably connected to the inspection frame, a group of reciprocating push rods are installed between the shaking frame and the inspection frame, a distance adjusting piece is installed on the shaking frame, a square shaft driven by a power motor is rotatably installed between the inner surfaces of the shaking frame, and two symmetrically arranged wear frames with adjustable spacing are transmission-connected to the distance adjusting piece, and a friction roller driven by the square shaft is rotatably installed on each wear frame.

[0017] The beneficial effect of adopting the above further scheme is that when the load-bearing body to be tested is subjected to static counterweight and impact strength testing, the friction roller can be caused to rotate at a set speed through the setting of the wear-addition component. After the friction roller rotates, the load-bearing body to be tested is then caused to wear to a set degree. Through the wear addition of the load-bearing body to be tested, the structural strength of the load-bearing body to be tested at different degrees of wear can be detected. When the load-bearing body to be tested is in a stretched detection state, the reciprocating push rod applies lateral force to the load-bearing body to be tested and drives the load-bearing body to be tested to swing back and forth. This is achieved through the reciprocating swinging state of the load-bearing body to be tested, so as to monitor the structural strength of the load-bearing body to be tested in a swinging or shaking state.

[0018] Furthermore, the distance adjusting component includes a distance adjusting screw rod rotatably connected to the inner surface of the shaking frame, an adjusting motor is installed on the side of the shaking frame, the output shaft end of the adjusting motor is fixedly connected to the distance adjusting screw rod, and the distance adjusting screw rod is respectively provided with a positive thread portion and a negative thread portion, and the positive thread portion and the negative thread portion are respectively connected to the two wear frames in a transmission manner.

[0019] Furthermore, a sleeve shaft is rotatably mounted on each of the wear frames, a bevel gear is mounted on the sleeve shaft and the friction roller, the two bevel gears are meshed with each other, a square groove with openings at both ends fixedly opened inside the sleeve shaft and slidably connected to the square shaft, and the cross-sections of the square groove and the square shaft are both regular polygons.

[0020] The beneficial effect of adopting the above further solution is that by setting the distance-adjusting screw rod, the distance between the two friction rollers can be limited. After the distance between the two friction rollers is limited, by setting the rotational speed of the friction rollers, the degree of wear of the carrier under test per unit time can be adjusted.

[0021] Further, a waste storage box with an open top is installed at the bottom of the inspection frame.

[0022] The beneficial effect of adopting the above further solution is that during use, the waste storage box is used for storing the carrier under test that breaks during the detection of the carrier under test.

[0023] The beneficial effects of the present invention are as follows: 1. When the present invention works, on the one hand, it can realize the impact resistance and tensile strength detection of the carrier under test. On the other hand, the device can also realize the strength detection of the carrier under test under different temperature items and the strength detection of the carrier under test under different wear intensities. At the same time, when the device is performing detection, it can also realize the strength detection of the carrier under test under the shaking condition. By realizing the above multiple detection items, the functionality of the device is effectively improved. And when the device is detecting, it can also realize the repeated detection of the carrier under test, thereby effectively improving the data accuracy of the detection device.

[0024] 2. In the present invention, when the static weight and impact strength of the carrier under test are detected, by setting the wear additional component, the friction roller can be rotated at a set speed. After the friction roller rotates, the carrier under test to be detected will be worn to a set degree. By adding wear to the carrier under test, the structural strength of the carrier under test under different wear degrees can be detected. When the carrier under test is in the straightening detection state, the reciprocating push rod applies a lateral force to the carrier under test and drives the carrier under test to swing back and forth. By realizing the reciprocating swing state of the carrier under test, the structural strength of the carrier under test in the swinging or shaking state can be monitored.

[0025] 3. When the present invention is in use, by setting the electric heating block, the release temperature of the carrier under test when it is released from the winding roller and the temperature during the clamping test of the active clamp and the follower clamp are limited. By limiting the temperature during the detection of the carrier under test, the influence of temperature conditions on the strength of the carrier under test can be detected. When the single strength detection of the carrier under test is completed and the detected carrier under test breaks, subsequently, the clamping component loses the clamping effect on the carrier under test. After the clamping component loses the clamping effect on the carrier under test, the winding roller rewinds the carrier under test to a specified length. Subsequently, the clamping component re-clamps the carrier under test. After the clamping component re-clamps the carrier under test, the repeated strength detection of the carrier under test can be carried out. Description of the Drawings

[0026] Figure 1It is a schematic diagram of the overall structure of an elevator electrical cable strength detection device according to the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the structure from another perspective; Figure 3 For the present invention Figure 2 A schematic diagram of the local enlarged structure at point A in the middle; Figure 4 It is a schematic diagram of the structure of the carrier to be tested and the pull frame of the present invention; Figure 5 It is a schematic diagram of the structure of the carrier to be tested and the bracket of the present invention; Figure 6 It is a structural schematic diagram of the synchronous guide rod and the follower clamp of the present invention; Figure 7 It is a structural schematic diagram of the active clamp and the synchronous guide rod of the present invention; Figure 8 It is a structural schematic diagram of the reciprocating push rod and the square shaft of the present invention; Fig. 9 For the present invention Figure 8 A schematic diagram of the local enlarged structure at B in the middle; Fig.10 It is a schematic structural diagram of the counterweight roller and the hanging pipe of the present invention.

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Inspection frame; 2. Clamping frame; 3. Carrying body to be tested; 4. Lifting module; 5. Support seat; 6. Measuring seat; 7. Waste storage box; 8. Pressure sensor; 9. Pulling frame; 10. Roller; 11. Guide wheel; 12. Clamping wheel; 13. Counterweight roller; 14. Liquid storage box; 15. Pump liquid pipe; 16. Hanging pipe; 17. Counterweight box; 18. Tension sensor; 19. Single chip microcomputer; 20. Clamping screw; 21. Active clamp; 22. Follow-up clamp; 23. Synchronous guide rod; 24. Clamping rod; 25. Electric heating block; 26. Shaking frame; 27. Reciprocating push rod; 28. Distance adjustment piece; 29. ​​Square shaft; 30. Wear frame; 31. Friction roller; 32. Sleeve shaft. DETAILED DESCRIPTION

[0028] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0029] like Figure 1-Figure 10 As shown, an elevator electrical cable strength detection device comprises a detection frame 1, on the top of which a sample belt release mechanism, a dynamic counterweight component and a clamping frame 2 are respectively installed; The sample tape unwinding mechanism is wound with a carrier 3 to be tested; The carrier 3 to be tested is a covering belt used in an elevator, and several thin steel ropes are arranged inside the covering belt; The sample tape unwinding mechanism includes a winding roller 10 rotatably mounted on the top of the inspection frame 1. A first motor is installed on the top of the inspection frame 1. The output shaft end of the first motor is fixedly connected to the winding roller 10. The tail end of the carrier 3 to be tested is fixedly connected to the winding roller 10. Two guide wheels 11 and a clamping wheel 12 are rotatably mounted on the inspection frame 1. The guide wheel 11 and the clamping wheel 12 are both in contact with the carrier 3 to be tested.

[0030] When the detection operation of the carrier to be tested is performed, the roller 10 releases the carrier to be tested 3 to a specified length and then performs the detection operation of the carrier to be tested 3. When a certain section of the carrier to be tested 3 is detected, the roller 10 releases the carrier to be tested 3 to a specified length again, and then facilitates continuous repeated tests and repeated strength tests of the carrier to be tested 3. Through repeated strength tests, the data accuracy of the detection device can be effectively improved; The dynamic counterweight component includes a counterweight roller 13 rotatably mounted on the inspection frame 1 and a liquid storage tank 14 fixedly mounted on the inspection frame 1. A second motor is mounted on the inspection frame 1, and the output shaft end of the second motor is fixedly connected to the counterweight roller 13. A pump body is mounted on the liquid storage tank 14. A liquid conducting cavity is fixedly opened inside the counterweight roller 13, and the liquid outlet port of the pump body is rotatably connected to the liquid conducting cavity through a pump liquid pipe 15. Two hanging tubes 16 are wound on the counterweight roller 13, and the tail ends of the two hanging tubes 16 are fixedly connected to the liquid conducting cavity. The ends of the two hanging tubes 16 away from the liquid conducting cavity are connected to the counterweight box 17. A tension sensor 18 is provided on the two hanging tubes 16, and a corrugated section cooperating with the tension sensor 18 is provided on the two hanging tubes 16. A single-chip microcomputer 19 is mounted on the inspection frame 1, and the data ends of the pressure sensor 8 and the two tension sensors 18 are data-connected to the single-chip microcomputer 19.

[0031] When it is necessary to perform a static counterweight test on the carrier 3 to be tested, first, under the driving action of the bracket 5, the pull frame 9 is arranged to the specified height. After the pull frame 9 is arranged to the specified height, the test length of the carrier 3 to be tested is then limited. After the test length of the carrier 3 to be tested is limited, the clamping component clamps the carrier 3 to be tested. After the clamping component has clamped the carrier 3 to be tested, the position of the pull frame 9 is then limited. After the position of the pull frame 9 is limited, the bracket 5 is sufficiently away from the measuring seat 6. After the bracket 5 is away from the measuring seat 6, the pull frame 9 is then in a free and movable state. During the static weight test, the bottom surfaces of the two weight boxes 17 are both fitted with the pull frame 9. After the weight boxes 17 are fitted with the pull frame 9, liquid is quantitatively supplied to the inside of the weight boxes 17, and finally the two weight boxes 17 have the specified weight. After the two weight boxes 17 have the specified weight, the static weight test is then performed on the carrier 3 to be tested; When it is necessary to perform impact counterweight detection on the carrier 3 to be tested, first, under the driving action of the bracket 5, the pull frame 9 is arranged to the specified height. After the pull frame 9 is arranged to the specified height, the test length of the carrier 3 to be tested is then limited. After the test length of the carrier 3 to be tested is limited, the clamping component clamps the carrier 3 to be tested. After the clamping component has clamped the carrier 3 to be tested, the position of the pull frame 9 is then limited. After the position of the pull frame 9 is limited, the bracket 5 is sufficiently away from the measuring seat 6. After the bracket 5 is away from the measuring seat 6, the pull frame 9 is then in a free and movable state. During impact counterweight, the counterweight box 17 first maintains a set distance from the pull frame 9. After the counterweight box 17 maintains a set distance from the pull frame 9, the interiors of the two counterweight boxes 17 are then quantitatively injected with liquid, and finally the two counterweight boxes 17 have a specified counterweight weight. During impact detection, the counterweight roller 13 rotates at a high speed, and the rotation speed of the counterweight roller 13 is 1.2 times the free fall speed of the counterweight box 17. After the counterweight box 17 falls freely from the set height, the impact resistance test of the carrier 3 to be tested under different impact strength conditions is then carried out.

[0032] A lifting module 4 is installed on the inspection frame 1, and a bracket 5 is transmission-connected to the lifting module 4; The inner wall of the inspection frame 1 and the position above the corresponding bracket 5 are slidably installed from bottom to top in sequence with a measuring seat 6 and a pulling frame 9, and a group of pressure sensors 8 are installed between the pulling frame 9 and the measuring seat 6; The dynamic weight balancing component impacts or dynamically balances the pull frame 9; A clamping component for clamping the carrier 3 to be tested is installed between the clamping frame 2 and the pulling frame 9; The clamping component includes a clamping screw 20 rotatably installed between the inner surfaces of the clamping frame 2, a clamping motor is installed on the side of the clamping frame 2, the output shaft end of the clamping motor is fixedly connected to the clamping screw 20, and a positive thread section and a negative thread section are respectively provided on the clamping screw 20, and an active clamp 21 is transmission-installed on the positive thread section and the negative thread section, and the two active clamps 21 are both slidably connected to the clamping frame 2, and two follow-up clamps 22 are slidably connected to the inner wall of the pull frame 9, and the top surfaces of the two follow-up clamps 22 are installed with synchronous guide rods 23, and the two synchronous guide rods 23 are respectively fixedly connected to the two active clamps 21.

[0033] The clamping components also include multiple groups of limit members fixed between the inner surfaces of the clamping frame 2 and the pulling frame 9, each of which includes two symmetrically arranged clamping rods 24. The clamping frame 2 and the pulling frame 9 are both rotatably connected to the clamping rods 24 at corresponding positions. A limit gap that cooperates with the hanging tube 16 and the carrier 3 to be tested is fixed between the two clamping rods 24. Through holes are opened inside the active clamp 21 and the follower clamp 22 and at the position corresponding to each clamping rod 24, and the radius of the through hole is 1.1 times the radius of the clamping rod 24.

[0034] When conducting a strength test on the carrier 3 to be tested, firstly, a set spacing is maintained between the pull frame 9 and the clamping frame 2, and then the tested length of the carrier 3 to be tested is limited during a single test. After the length is limited, the carrier 3 to be tested passes through the gap, and under the driving action of the clamping screw 20, the two active clamps 21 and the two driven clamps approach each other, and then the carrier 3 to be tested is clamped, and a plurality of limit members are set to achieve the movable range of the carrier 3 to be tested.

[0035] The active clamp 21 , the follower clamp 22 and the winding roller 10 are all equipped with electric heating blocks 25 . The radius of the carrier 3 to be measured is 1.1 times the radius of the hanging tube 16 .

[0036] When in use, the electric heating block 25 is set to limit the release temperature of the carrier 3 to be tested when it is released from the winding roller 10 and the temperature of the active clamp 21 and the follower clamp 22 when performing the clamping test; By limiting the temperature of the carrier 3 to be tested during testing, the influence of the temperature condition on the strength of the carrier 3 to be tested is tested; When a single strength test of the carrier 3 to be tested is completed and the tested carrier 3 is broken, the clamping component loses its clamping effect on the carrier 3 to be tested. After the clamping component loses its clamping effect on the carrier 3 to be tested, the roller 10 rewinds the carrier 3 to be tested to a specified length, and then the clamping component re-clamps the carrier 3 to be tested. After the clamping component re-clamps the carrier 3 to be tested, repeated strength testing of the carrier 3 to be tested can be carried out.

[0037] A wear-resistant additional component is installed on the inspection frame 1 and at a position corresponding to the position between the clamping frame 2 and the pulling frame 9.

[0038] The wear-attached parts include a shaking frame 26 which is slidably connected to the inspection frame 1, a group of reciprocating push rods 27 are installed between the shaking frame 26 and the inspection frame 1, a distance adjusting member 28 is installed on the shaking frame 26, a square shaft 29 driven by a power motor is rotatably installed between the inner surfaces of the shaking frame 26, and two symmetrically arranged wear frames 30 with adjustable spacing are transmission-connected to the distance adjusting member 28, and a friction roller 31 driven by the square shaft 29 is rotatably installed on each wear frame 30.

[0039] When the load-bearing body 3 to be tested is subjected to static counterweight and impact strength testing, the friction roller 31 can be caused to rotate at a set speed by setting the wear-addition component. After the friction roller 31 rotates, the load-bearing body 3 to be tested is then caused to wear to a set degree. Through the wear-addition of the load-bearing body 3 to be tested, the structural strength of the load-bearing body 3 to be tested at different degrees of wear can be tested. When the load-bearing body 3 to be tested is in a stretched detection state, the reciprocating push rod 27 applies lateral force to the load-bearing body 3 to be tested and drives the load-bearing body 3 to be tested to swing back and forth. This is achieved through the reciprocating swinging state of the load-bearing body 3 to be tested, so as to monitor the structural strength of the load-bearing body 3 to be tested in a swinging or shaking state.

[0040] The distance adjusting member 28 includes a distance adjusting screw rod rotatably connected to the inner surface of the shaking frame 26. An adjusting motor is installed on the side of the shaking frame 26. The output shaft end of the adjusting motor is fixedly connected to the distance adjusting screw rod. The distance adjusting screw rod is respectively provided with a positive thread portion and a negative thread portion. The positive thread portion and the negative thread portion are respectively connected to the two wear frames 30 in a transmission manner.

[0041] A sleeve shaft 32 is rotatably mounted on each wear frame 30, and a bevel gear is mounted on the sleeve shaft 32 and the friction roller 31. The two bevel gears mesh with each other. A square groove with openings at both ends and sliding connection with the square shaft 29 is fixed inside the sleeve shaft 32. The cross-sections of the square groove and the square shaft 29 are both regular polygons.

[0042] By setting the pitch-adjusting screw rod, the distance between the two friction rollers 31 can be limited. After the distance between the two friction rollers 31 is limited, the degree of wear of the carrier 3 to be tested per unit time can be adjusted by setting the rotation speed of the friction rollers 31.

[0043] A waste storage box 7 with an open top is installed at the bottom of the inspection frame 1.

[0044] When in use, the waste storage box 7 is used to store broken carrier bodies 3 to be tested during the testing of the carrier bodies 3 to be tested.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An elevator electrical cable strength detection device, comprising a detection frame (1), characterized in that: The top of the inspection frame (1) is respectively equipped with a sample tape releasing mechanism, a dynamic weight balancing component and a clamping frame (2); a carrier (3) to be tested is wound on the sample tape releasing mechanism; a lifting module (4) is installed on the inspection frame (1); a support seat (5) is connected to the lifting module (4) in a transmission manner; a measuring seat (6) and a pulling frame (9) are slidably mounted in sequence from bottom to top on the inner wall of the inspection frame (1) and at a position corresponding to the position above the support seat (5); a group of pressure sensors (8) are installed between the pulling frame (9) and the measuring seat (6); the dynamic weight balancing component impacts or dynamically balances the pulling frame (9); a clamping component for clamping the carrier (3) to be tested is installed between the clamping frame (2) and the pulling frame (9); and a wear additional component is installed on the inspection frame (1) and at a position corresponding to the position between the clamping frame (2) and the pulling frame (9).

2. An elevator electrical cable strength detection device according to claim 1, characterized in that: The sample tape unwinding mechanism comprises a roller (10) rotatably mounted on the top of the inspection frame (1); a first motor is mounted on the top of the inspection frame (1); an output shaft end of the first motor is fixedly connected to the roller (10); a tail end of the test carrier (3) is fixedly connected to the roller (10); two guide wheels (11) and a clamping wheel (12) are rotatably mounted on the inspection frame (1); the guide wheels (11) and the clamping wheel (12) are both in contact with the test carrier (3).

3. An elevator electrical cable strength detection device according to claim 2, characterized in that: The dynamic counterweight component comprises a counterweight roller (13) rotatably mounted on the inspection frame (1) and a liquid storage tank (14) fixedly mounted on the inspection frame (1); a second motor is mounted on the inspection frame (1); an output shaft end of the second motor is fixedly connected to the counterweight roller (13); a pump body is mounted on the liquid storage tank (14); a liquid guide cavity is fixedly provided inside the counterweight roller (13); a liquid outlet port of the pump body is rotatably connected to the liquid guide cavity via a pump liquid pipe (15); two hanging pipes (14) are wound around the counterweight roller (13); 16), the tail ends of the two hanging tubes (16) are fixedly connected to the liquid guiding cavity, the ends of the two hanging tubes (16) away from the liquid guiding cavity are connected to the counterweight box (17), the two hanging tubes (16) are each provided with a tension sensor (18), the two hanging tubes (16) are each provided with a corrugated section cooperating with the tension sensor (18), a single chip microcomputer (19) is installed on the inspection frame (1), and the data ends of the pressure sensor (8) and the two tension sensors (18) are data-connected to the single chip microcomputer (19).

4. An elevator electrical cable strength detection device according to claim 3, characterized in that: The clamping component comprises a clamping screw (20) rotatably mounted between the inner surfaces of the clamping frame (2), a clamping motor is mounted on the side of the clamping frame (2), the output shaft end of the clamping motor is fixedly connected to the clamping screw (20), the clamping screw (20) is respectively provided with a positive thread section and a negative thread section, and an active clamp (21) is drivingly mounted on the positive thread section and the negative thread section, and the two active clamps (21) are both slidably connected to the clamping frame (2), and the inner wall of the pull frame (9) is slidably connected to two follower clamps (22), and the top surfaces of the two follower clamps (22) are respectively installed with synchronous guide rods (23), and the two synchronous guide rods (23) are respectively fixedly connected to the two active clamps (21).

5. An elevator electrical cable strength detection device according to claim 4, characterized in that: The clamping component also includes a plurality of groups of limiting members fixed between the inner surfaces of the clamping frame (2) and the pulling frame (9), each limiting member including two symmetrically arranged clamping rods (24), the clamping frame (2) and the pulling frame (9) being rotatably connected to the clamping rods (24) at corresponding positions, a limiting gap that cooperates with the hanging tube (16) and the carrier (3) to be tested is fixedly arranged between the two clamping rods (24), and a through hole is opened inside the active clamp (21) and the follower clamp (22) and corresponding to the position of each clamping rod (24), and the radius of the through hole is 1.1 times the radius of the clamping rod (24).

6. An elevator electrical cable strength detection device according to claim 4, characterized in that: The active clamp (21), the follower clamp (22) and the winding roller (10) are all equipped with electric heating blocks (25). The radius of the carrier (3) to be tested is 1.1 times the radius of the hanging tube (16).

7. An elevator electrical cable strength detection device according to claim 1, characterized in that: The wear-adding component comprises a shaking frame (26) slidably connected to the inspection frame (1), a group of reciprocating push rods (27) are installed between the shaking frame (26) and the inspection frame (1), a distance adjusting member (28) is installed on the shaking frame (26), a square shaft (29) driven by a power motor is rotatably installed between the inner surfaces of the shaking frame (26), and two wear frames (30) symmetrically arranged and adjustable in distance are drivingly connected to the distance adjusting member (28), and a friction roller (31) driven by the square shaft (29) is rotatably installed on each wear frame (30).

8. An elevator electrical cable strength detection device according to claim 7, characterized in that: The distance adjusting member (28) comprises a distance adjusting screw rod rotatably connected to the inner surface of the shaking frame (26); an adjusting motor is mounted on the side of the shaking frame (26); an output shaft end of the adjusting motor is fixedly connected to the distance adjusting screw rod; a positive thread portion and a negative thread portion are respectively provided on the distance adjusting screw rod; the positive thread portion and the negative thread portion are respectively drivingly connected to two wear frames (30).

9. An elevator electrical cable strength detection device according to claim 7, characterized in that: A sleeve shaft (32) is rotatably mounted on each of the wear frames (30), a bevel gear is mounted on each of the sleeve shaft (32) and the friction roller (31), the two bevel gears are meshed with each other, a square groove with two ends open and slidably connected to the square shaft (29) is fixedly provided inside the sleeve shaft (32), and the cross-sections of the square groove and the square shaft (29) are both regular polygons.

10. An elevator electrical cable strength detection device according to claim 1, characterized in that: A waste storage box (7) with an open top is installed at the bottom of the inspection frame (1).

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