Elevator electrical cable strength detection device

Abstract

The present invention relates to the technical field of electrical cable strength testing devices, specifically an elevator electrical cable strength testing device, comprising 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 carrier to be tested is wound on the sample tape pay-out mechanism, a lifting module is installed on the inspection frame, a bracket is connected to the lifting module in a transmission manner, a measuring seat and a pull frame are slidably installed from bottom to top on the inner wall of the inspection frame and corresponding to the position above the bracket, a group of pressure sensors are installed between the pull frame and the measuring seat, and the dynamic counterweight component impacts or dynamically counterweights the pull frame. The beneficial effects of the present invention are: when the present invention is working, on the one hand, it can realize the impact resistance and tensile strength test of the carrier to be tested, and on the other hand, the present device can also realize the strength test of the carrier to be tested under different temperature items and the strength test of the carrier to be tested under different wear intensities.

Description

Technical Field

[0001] The present 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 finished elevator cable passes the strength test can it be used in actual projects.

[0003] In the prior art, patent document CN211085936U discloses a device for testing the strength of finished elevator cables. The device comprises 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. Two sets of fixing clips are provided at the bottom end of the tensile mechanism and the top end of the fixing mechanism, respectively. The device can read the strength test results of finished elevator cables through the control mechanism. However, the strength testing device has the following technical problems when used:

[0004] 1. It is not convenient to realize rapid and repeated detection during cable inspection;

[0005] 2. It is not convenient to test the impact resistance and tensile strength of the cable, and it is not convenient to test the strength of the cable under different temperature conditions and different abrasion intensities;

[0006] 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

[0007] In response to 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 device is not convenient for realizing rapid and repeated detection when detecting the carrier to be tested, is not convenient for realizing impact resistance and tensile strength detection of the carrier to be tested, is not convenient for realizing strength detection of the carrier to be tested under different temperature items, and is not convenient for realizing strength detection of the carrier to be tested under different wear intensities.

[0008] The technical solution of the present invention for solving the above technical problems is as follows: an elevator electrical cable strength testing 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 bracket is transmission-connected to 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 at a position corresponding to the position above the bracket, 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-adding component is installed on the inspection frame at a position corresponding to the position between the clamping frame and the pulling frame;

[0009] The wear-attaching component includes a shaking frame that is 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 a square shaft is rotatably installed on each wear frame.

[0010] The distance adjusting part includes a distance adjusting screw rod that is 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. 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 in a transmission manner.

[0011] When the load-bearing body to be tested is subjected to static counterweight and impact strength testing, the friction roller can be rotated at a set speed by setting the wear-addition component. After the friction roller rotates, the load-bearing body to be tested is subjected to a set degree of wear. Through the wear-addition of the load-bearing body to be tested, the structural strength of the load-bearing body to be tested under different degrees of wear can be tested. When the load-bearing body to be tested is in a stretched testing 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. The reciprocating swinging state of the load-bearing body to be tested is used to monitor the structural strength of the load-bearing body to be tested in a swinging or shaking state.

[0012] On the basis of the above technical solution, the present invention can also be improved as follows.

[0013] Furthermore, the sample tape releasing mechanism includes a roller rotatably mounted on the top of the inspection frame, a first motor is installed on the top of the inspection frame, the output shaft end of the first motor is fixedly connected to the roller, the tail end of the carrier to be tested is fixedly connected to the roller, and 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 carrier to be tested.

[0014] The beneficial effect of adopting the above-mentioned 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. After 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 facilitates the 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.

[0015] Furthermore, 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 guide cavity is fixedly opened inside the counterweight roller, the liquid outlet port of the pump body is rotatably connected to the liquid guide 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 guide cavity, the ends of the two hanging tubes away from the liquid guide cavity are 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.

[0016] The beneficial effect of adopting the above further scheme is that when it is necessary to perform a static counterweight test on the carrier to be tested, first, under the driving action of the bracket, the pull frame is arranged to a specified height. After the pull frame is arranged to the specified height, the test length of the carrier to be tested is then limited. After the test length of the carrier to be tested is limited, the clamping component clamps the carrier to be tested. After the clamping component completes clamping the carrier to be tested, the position of the pull frame is then limited. After the position of the pull frame is limited, the bracket is sufficiently away from the measuring seat. After the bracket is away from the measuring seat, the pull frame is then placed in a freely movable state.

[0017] During the static counterweight test, the bottom surfaces of the two counterweight boxes are attached to the pull frame. After the counterweight boxes are attached to the pull frame, liquid is quantitatively supplied to the inside of the counterweight boxes, and finally the two counterweight boxes have the specified weight. After the two counterweight boxes have the specified weight, the static counterweight test is then carried out on the load-bearing object to be tested;

[0018] When it is necessary to perform an impact counterweight test on the load-bearing body to be tested, the pull frame is first arranged to a specified height under the driving action of the bracket. 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 completes clamping 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 bracket is sufficiently away from the measuring seat. After the bracket is away from the measuring seat, the pull frame is then in a free and movable state.

[0019] During impact counterweight testing, 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 a high speed, and the 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 carried out on the load-bearing body to be tested.

[0020] 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 segment and a negative thread segment, and an active clamp is installed on the positive thread segment and the negative thread segment, 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 respectively installed with synchronization guide rods, and the two synchronization guide rods are respectively fixedly connected to the two active clamps.

[0021] Furthermore, the clamping component also includes multiple groups of limiters fixed between the inner surfaces of the clamping frame and the pulling frame, each limiter 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 fixed between the two clamping rods to cooperate with the hanging tube and the carrier to be tested. 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.

[0022] The beneficial effect of adopting the above-mentioned further scheme is that when conducting strength testing of the carrier to be tested, a set distance is first maintained between the pull frame and the clamping frame, and then the tested 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. By setting multiple limiters, the movable range of the carrier to be tested is realized.

[0023] Furthermore, electric heating blocks are installed inside the active clamp, the follower clamp and the roller, and the radius of the carrier to be measured is 1.1 times the radius of the hanging pipe.

[0024] The beneficial effect of adopting the above further solution is that, when in use, the setting of the electric heating block can limit the release temperature of the test carrier when it is released from the winding roller and the temperature of the active clamp and the follower clamp during the clamping test;

[0025] By limiting the temperature of the carrier to be tested, the influence of the temperature condition on the strength of the carrier to be tested can be tested;

[0026] 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.

[0027] Furthermore, a sleeve shaft is rotatably mounted on each of the wear frames, and a bevel gear is mounted on each of the sleeve shaft and the friction roller. The two bevel gears are meshed with each other, and a square groove with openings at both ends and slidingly connected to the square shaft is fixedly opened inside the sleeve shaft. The cross-sections of the square groove and the square shaft are both regular polygons.

[0028] The beneficial effect of adopting the above further scheme is that the distance between the two friction rollers can be limited by setting the distance-adjusting screw. After the distance between the two friction rollers is limited, the degree of wear of the carrier to be tested per unit time can be adjusted by setting the rotation speed of the friction rollers.

[0029] Furthermore, a waste storage box with an open top is installed at the bottom of the inspection rack.

[0030] The beneficial effect of adopting the above further solution is that, when in use, the waste storage box is used to store broken carriers to be tested during the testing of the carriers to be tested.

[0031] The beneficial effects of the present invention are:

[0032] 1. When the present invention is working, on the one hand, it can realize the impact resistance and tensile strength test of the carrier to be tested. On the other hand, the device can also realize the strength test of the carrier to be tested under different temperature items and the strength test of the carrier to be tested under different wear intensities. At the same time, the device can also realize the strength test of the carrier to be tested under the shaking condition during the test. Through the realization of the above-mentioned multiple test items, the functionality of the device is effectively improved, and the device can also realize repeated detection of the carrier to be tested during the test, thereby effectively improving the data accuracy of the detection device.

[0033] 2. In the present invention, when the carrier to be tested is subjected to static counterweight and impact strength testing, the friction roller can be rotated at a set speed by setting the wear-added component. After the friction roller rotates, the carrier to be tested is subjected to a set degree of wear. Through the wear-added component of the carrier to be tested, the structural strength of the carrier to be tested under different degrees of wear can be tested. When the carrier to be tested is in a straightened testing state, the reciprocating push rod applies lateral force to the carrier to be tested and drives the carrier to be tested to swing back and forth. The reciprocating swinging state of the carrier to be tested is realized to monitor the structural strength of the carrier to be tested in a swinging or shaking state.

[0034] 3. When the present invention is used, the electric heating block is set to limit the release temperature of the carrier to be tested when it is released from the roller and the temperature of the active clamp and the follow-up clamp during the clamping test. The temperature limit during the detection of the carrier to be tested is used to detect the influence of the temperature conditions on the strength of the carrier to be tested. When the single strength test of the carrier to be tested is completed and the tested 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the overall structure of an elevator electrical cable strength detection device according to the present invention;

[0036] Figure 2 For the present invention Figure 1 Structural diagram from another perspective;

[0037] Figure 3 For the present invention Figure 2 Schematic diagram of the local enlarged structure at A in the middle;

[0038] Figure 4 This is a schematic structural diagram of the carrier to be tested and the pull frame of the present invention;

[0039] Figure 5 This is a schematic structural diagram of the carrier to be tested and the bracket of the present invention;

[0040] Figure 6 It is a structural schematic diagram of the synchronous guide rod and the follower clamp of the present invention;

[0041] Figure 7 It is a structural schematic diagram of the active clamp and the synchronous guide rod of the present invention;

[0042] Figure 8 It is a structural schematic diagram of the reciprocating push rod and the square shaft of the present invention;

[0043] Figure 9 For the present invention Figure 8 Schematic diagram of the local enlarged structure at B in the middle;

[0044] Figure 10 It is a structural schematic diagram of the counterweight roller and hanging pipe of the present invention.

[0045] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0046] 1. Inspection frame; 2. Clamping frame; 3. Carrying body to be tested; 4. Lifting module; 5. Support; 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 tank; 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. Rocking frame; 27. Reciprocating push rod; 28. Distance adjustment piece; 29. ​​Square shaft; 30. Wear frame; 31. Friction roller; 32. Sleeve shaft. DETAILED DESCRIPTION

[0047] The principles and features of the present invention are described below with reference to 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.

[0048] like Figures 1-10 As shown, an elevator electrical cable strength testing device includes a testing frame 1, on the top of which are respectively installed a sample tape pay-out mechanism, a dynamic counterweight component and a clamping frame 2;

[0049] The sample tape unwinding mechanism is wound with a carrier 3 to be tested;

[0050] The carrier 3 to be tested is a covering belt used in elevators, and several thin steel ropes are arranged inside the covering belt;

[0051] The sample tape unwinding mechanism includes a 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 roller 10. The tail end of the carrier 3 to be tested 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 wheel 11 and the clamping wheel 12 are both in contact with the carrier 3 to be tested.

[0052] When the test operation of the carrier body to be tested is carried out, the roller 10 pays out the carrier body 3 to be tested by a specified length and then performs the test operation of the carrier body 3 to be tested. After the test of a certain section of the carrier body 3 to be tested is completed, the roller 10 pays out the carrier body 3 to be tested by a specified length again, and then facilitates the continuous repeated test and repeated strength test of the carrier body 3 to be tested. Through repeated strength test, the data accuracy of the detection device is effectively improved;

[0053] 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 installed 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 installed on the liquid storage tank 14. A liquid guide cavity is fixedly opened inside the counterweight roller 13, and the liquid outlet port of the pump body is rotatably connected to the liquid guide cavity through a pump liquid pipe 15. Two hanging tubes 16 are wound around the counterweight roller 13, and the tail ends of the two hanging tubes 16 are fixedly connected to the liquid guide cavity. The ends of the two hanging tubes 16 away from the liquid guide 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 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.

[0054] 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 completes clamping 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.

[0055] During the static counterweight test, the bottom surfaces of the two counterweight boxes 17 are both fitted with the pull frame 9. After the counterweight boxes 17 are fitted with the pull frame 9, liquid is quantitatively supplied to the interior of the counterweight boxes 17, and finally the two counterweight boxes 17 have the specified weight. After the two counterweight boxes 17 have the specified weight, the static counterweight test is then performed on the carrier 3 to be tested;

[0056] When it is necessary to perform an impact 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 completes clamping 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.

[0057] During impact counterweighting, 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 the specified counterweight weight. During impact testing, the counterweight roller 13 rotates at 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 performed.

[0058] A lifting module 4 is installed on the inspection frame 1, and a bracket 5 is connected to the lifting module 4 in a transmission manner;

[0059] 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 pull frame 9. A group of pressure sensors 8 are installed between the pull frame 9 and the measuring seat 6.

[0060] The dynamic weight balancing component impacts or dynamically balances the pull frame 9;

[0061] A clamping component for clamping the carrier 3 to be tested is installed between the clamping frame 2 and the pulling frame 9;

[0062] The clamping component includes a clamping screw 20 that is 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. The clamping screw 20 is respectively provided with a positive thread segment and a negative thread segment. An active clamp 21 is installed on the positive thread segment and the negative thread segment. The two active clamps 21 are both slidably connected to the clamping frame 2. Two follow-up clamps 22 are slidably connected to the inner wall of the pull frame 9. The top surfaces of the two follow-up clamps 22 are respectively installed with synchronization guide rods 23. The two synchronization guide rods 23 are respectively fixedly connected to the two active clamps 21.

[0063] The clamping components also include multiple groups of limiters fixed between the inner surfaces of the clamping frame 2 and the pulling frame 9. Each limiter 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 is fixed between the two clamping rods 24 to cooperate with the hanging tube 16 and the carrier 3 to be tested. A through hole is opened inside the active clamp 21 and the follower clamp 22 and corresponds to the position of each clamping rod 24. The radius of the through hole is 1.1 times the radius of the clamping rod 24.

[0064] When conducting a strength test on the carrier 3 to be tested, first maintain a set distance between the pull frame 9 and the clamping frame 2, and then limit the detected length of the carrier 3 to be tested 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 clamp the carrier 3 to be tested. By setting multiple limit members, the movable range of the carrier 3 to be tested is realized.

[0065] 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 .

[0066] 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 reel 10 and the temperature of the active clamp 21 and the follower clamp 22 when performing the clamping test;

[0067] By limiting the temperature of the carrier 3 to be tested, the influence of the temperature condition on the strength of the carrier 3 to be tested is tested;

[0068] When a single strength test of the carrier body 3 to be tested is completed and the carrier body 3 to be tested is broken, the clamping component loses its clamping effect on the carrier body 3 to be tested. After the clamping component loses its clamping effect on the carrier body 3 to be tested, the roller 10 rewinds the carrier body 3 to be tested to a specified length, and then the clamping component re-clamps the carrier body 3 to be tested. After the clamping component re-clamps the carrier body 3 to be tested, repeated strength testing of the carrier body 3 to be tested can be carried out.

[0069] 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.

[0070] The wear-attached parts include a shaking frame 26 that 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, and a square shaft 29 driven by a power motor is rotatably installed between the inner surfaces of the shaking frame 26. The distance adjusting member 28 is transmission-connected to two symmetrically arranged wear frames 30 with adjustable spacing, and each wear frame 30 is rotatably installed with a friction roller 31 driven by the square shaft 29.

[0071] When the carrier 3 to be tested is subjected to static counterweight and impact strength testing, the friction roller 31 can be rotated at a set speed by setting the wear-addition component. After the friction roller 31 rotates, the carrier 3 to be tested is subjected to a set degree of wear. Through the wear addition of the carrier 3 to be tested, the structural strength of the carrier 3 to be tested under different degrees of wear can be tested. When the carrier 3 to be tested is in a stretched detection state, the reciprocating push rod 27 applies lateral force to the carrier 3 to be tested and drives the carrier 3 to be tested to swing back and forth. The reciprocating swinging state of the carrier 3 to be tested is realized to monitor the structural strength of the carrier 3 to be tested in a swinging or shaking state.

[0072] The distance adjusting member 28 includes a distance adjusting screw that is 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. The distance adjusting screw 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 for transmission.

[0073] A sleeve shaft 32 is rotatably mounted on each wear frame 30, and a bevel gear is mounted on each sleeve shaft 32 and the friction roller 31. The two bevel gears are engaged with each other. A square groove with openings at both ends and sliding connection to 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.

[0074] By setting the pitch-adjusting screw, 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 test carrier 3 per unit time can be adjusted by setting the rotation speed of the friction rollers 31.

[0075] A waste storage box 7 with an open top is installed at the bottom of the inspection frame 1.

[0076] When in use, the waste storage box 7 is used to store broken carrier bodies 3 to be tested during testing of the carrier bodies 3 to be tested.

[0077] 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 principles of the present invention should be included in the scope of protection 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 release mechanism, a dynamic weight balancing component and a clamping frame (2); a carrier to be tested (3) is wound on the sample tape release 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 installed on the inner wall of the inspection frame (1) and corresponding to the position above the support seat (5) from bottom to top; 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 to be tested (3) is installed between the clamping frame (2) and the pulling frame (9); a wear additional component is installed on the inspection frame (1) and corresponding to the position between the clamping frame (2) and the pulling frame (9); The sample tape unwinding mechanism includes 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), the output shaft end of the first motor is fixedly connected to the roller (10), the tail end of the test carrier (3) is fixedly connected to the roller (10), and two guide wheels (11) and a clamping wheel (12) are rotatably mounted on the inspection frame (1), and the guide wheel (11) and the clamping wheel (12) are both in contact with the test carrier (3); 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), 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 guide cavity is fixedly opened inside the counterweight roller (13). The liquid outlet port of the pump body is rotatably connected to the liquid guide cavity through a pump liquid pipe (15). Two hanging pipes ( 16), the tail ends of the two hanging tubes (16) are fixedly connected to the liquid guide cavity, the ends of the two hanging tubes (16) away from the liquid guide 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 that cooperates 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 both data-connected to the single chip microcomputer (19); The clamping component includes 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), and the output shaft end of the clamping motor is fixedly connected to the clamping screw (20), and the clamping screw (20) is respectively provided with a positive thread segment and a negative thread segment, and an active clamp (21) is driven and mounted on the positive thread segment and the negative thread segment, 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 mounted with synchronous guide rods (23), and the two synchronous guide rods (23) are fixedly connected to the two active clamps (21); 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 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, and a limiting gap is fixedly provided between the two clamping rods (24) to cooperate with the hanging tube (16) and the carrier (3) to be tested, and a through hole is 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).

2. An elevator electrical cable strength detection device according to claim 1, characterized in that: The active clamp (21), the follower clamp (22) and the 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).

3. The elevator electrical cable strength detection device according to claim 1, characterized in that: The wear-attaching component includes 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 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).

4. An elevator electrical cable strength detection device according to claim 3, characterized in that: The distance adjusting member (28) includes a distance adjusting screw 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, and the distance adjusting screw 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 (30) in a transmission manner.

5. An elevator electrical cable strength detection device according to claim 4, characterized in that: A sleeve shaft (32) is rotatably mounted on each wear frame (30), and a bevel gear is mounted on each 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.

6. The 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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