Elevator steel wire rope tension detector

Abstract

The utility model discloses an elevator steel wire rope tension detector relates to tension detection technical field, including frame, be installed with handle, support unit and displacement unit on the frame, be installed with mounting bracket on the displacement unit, be installed with detection unit on the mounting bracket, and the detection unit includes first screw rod, installation slot, and the first screw rod is installed at the center position of mounting bracket through the thread cooperation, and the end of first screw rod is rotatably connected with movable frame, and force sensor and first limit rod are installed on movable frame. Advantageous effects lie in that the equal size, opposite direction clamping force of two sides of steel wire rope is carried out through second screw rod, movable beam and limit wheel, thereby carrying out center positioning and limiting to steel wire rope, eliminating eccentric moment and deflection error caused by one -sided force, so that the center position of steel wire rope and gyro wheel mechanism is on the same axle side, avoids the deflection of steel wire rope in the detection process, removes, guarantees the accuracy of detection result.

Description

Technical Field

[0001] This utility model relates to the field of tension force testing technology, and in particular to an elevator wire rope tension force testing instrument. Background Technology

[0002] Traction wire ropes, as a component of the elevator traction system, are a crucial part of the elevator. Their two ends connect to the elevator car and the counterweight, respectively, bearing the entire weight of both. Therefore, the balance of tension during operation affects the normal operation of the entire elevator and the service life of the traction wire rope. Currently, when testing the tension of elevator wire ropes, a tension tester is generally used for tensile testing, or the rope is wiggled and its swing amplitude is observed to determine the current tension.

[0003] A search revealed that Chinese patent application CN222922729U discloses an elevator wire rope tension tester, which mainly uses a compression wheel to compress the wire rope, causing the wheel to move and drive the transmission end of the tubular force gauge to extend, thereby completing the detection of the wire rope tension.

[0004] Compared with existing technologies in related fields, it can be seen that the fixtures on existing testing instruments are mostly V-grooves or flat blocks. During the measurement process, they are prone to slippage due to slight shaking of the wire rope or the weight of the instrument itself, which causes deviation in the measurement position and affects the measurement accuracy. Utility Model Content

[0005] The purpose of this invention is to provide an elevator wire rope tension tester in order to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions: An elevator wire rope tension tester includes a frame, on which a handle, a support unit and a displacement unit are fixedly installed. A mounting frame is fixedly installed on the displacement unit, and a testing unit is fixedly installed on the mounting frame. The detection unit includes a first lead screw and a mounting slot. The first lead screw is installed at the center of the mounting frame via a threaded connection. A movable frame is rotatably connected to the end of the first lead screw. A force sensor and a first limit rod are fixedly installed on the movable frame. A roller mechanism is fixedly installed on the force sensor. The mounting slot is located on the side of the mounting frame. The center of the mounting slot and the roller mechanism are on the same axial side, and the mounting slot is located on both sides of the roller mechanism. A bidirectional adjustment component is fixedly installed in the mounting slot. A limit wheel is rotatably installed on the bidirectional adjustment component. The first limit rod is slidably connected to the mounting frame.

[0007] Furthermore, the bidirectional adjustment assembly includes a second lead screw, which is rotatably installed in the mounting groove. The two ends of the second lead screw have opposite thread directions, and movable beams are installed at both ends of the second lead screw through threaded engagement. The movable beams are slidably connected in the mounting groove, and the movable beams are rotatably connected to the limit wheel.

[0008] Furthermore, the support unit includes a sleeve, bolts, and anti-slip toothed plates. The sleeve is rotatably mounted on the frame, and an extension component is fixedly mounted on the end of the sleeve. A traction plate is fixedly mounted on the extension component, and an elastic component is fixedly mounted on the traction plate. The anti-slip toothed plates are fixedly mounted on the elastic component. The bolts are mounted on the frame through threaded engagement, and the lower end of the bolts is slidably connected to the sleeve.

[0009] Furthermore, the extension component includes a rotating part, which is rotatably mounted on the end of the sleeve. A third lead screw is threadedly mounted at the center of the rotating part. The third lead screw is fixedly connected to a traction plate. A second limit rod is fixedly mounted on the traction plate and is slidably connected to the sleeve.

[0010] Furthermore, the elastic component includes a damping rod, which is fixedly mounted on the traction plate. The telescopic end of the damping rod is fixedly connected to an anti-slip toothed plate, and a spring is sleeved on the damping rod.

[0011] Furthermore, the displacement unit includes a slide groove, which is located on the side of the frame. An adjusting component is slidably installed in the slide groove. The adjusting component is fixedly connected to the mounting bracket. A locking mechanism is installed on the adjusting component through a threaded engagement. The locking mechanism is slidably connected to the slide groove.

[0012] Furthermore, a level is fixedly installed on the upper surface of the frame.

[0013] The advantages compared to existing technologies are as follows: 1. By applying equal and opposite clamping forces to both sides of the wire rope through the second lead screw, the movable beam, and the limiting wheel, the wire rope is centered and limited, eliminating the eccentric torque and deflection error caused by unilateral force application. This ensures that the center positions of the wire rope and the roller mechanism are on the same axial side, and prevents the wire rope from deflecting or moving during the testing process, thus guaranteeing the accuracy of the test results.

[0014] 2. By folding the sleeve and storing the third lead screw, the convenience of storing and moving the entire testing instrument is increased. During testing, the frame is locked, fixed, and positioned by the sleeve, the third lead screw, the traction plate, the damping rod, and the anti-slip toothed plate. During the measurement process, the damping rod and spring buffer the external vibration force, effectively preventing the frame from moving or tilting during the measurement process, improving the stability of the frame, and avoiding frequent movement and tilting during the testing process from affecting the accuracy of the test results. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the first axial side structure of the elevator wire rope tension tester described in this utility model; Figure 2 This utility model describes an elevator wire rope tension testing instrument. Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 This utility model describes an elevator wire rope tension testing instrument. Figure 1 Enlarged structural diagram at point B; Figure 4 This is a schematic diagram of the second axial side structure of the elevator wire rope tension tester described in this utility model; Figure 5 This utility model describes an elevator wire rope tension testing instrument. Figure 4 Enlarged structural diagram at point C; Figure 6 This is a schematic diagram of the second axial side structure of the elevator wire rope tension tester described in this utility model; Figure 7 This utility model describes an elevator wire rope tension testing instrument. Figure 6 Enlarged structural diagram at point D.

[0017] The annotations in the attached figures are explained as follows: 1. Frame; 2. Mounting bracket; 301. First lead screw; 302. First limit rod; 303. Movable frame; 304. Force sensor; 305. Roller mechanism; 306. Mounting groove; 307. Second lead screw; 308. Movable beam; 309. Limiting wheel; 401. Sleeve; 402. Bolt; 403. Rotating component; 404. Third lead screw; 405. Second limit rod; 406. Traction plate; 407. Damping rod; 408. Spring; 409. Anti-slip toothed plate; 501. Slide groove; 502. Adjusting component; 503. Locking mechanism; 6. Level. Detailed Implementation

[0018] like Figures 1-7As shown, an elevator wire rope tension tester includes a frame 1, on which a handle, a support unit, and a displacement unit are fixedly installed. A mounting frame 2 is fixedly installed on the displacement unit, and a testing unit is fixedly installed on the mounting frame 2. During testing, the frame 1 is moved by the handle to place it at the required testing height. The support unit supports and fixes the frame 1, and the testing unit tests the tension of the wire rope. The displacement unit adjusts the position of the testing unit via the mounting frame 2, facilitating testing of different wire ropes. like Figure 1 , Figure 2 , Figures 4-7As shown, the detection unit includes a first lead screw 301 and a mounting groove 306. The first lead screw 301 is threadedly installed at the center of the mounting frame 2. A movable frame 303 is rotatably connected to the end of the first lead screw 301. A force sensor 304 and a first limit rod 302 are fixedly installed on the movable frame 303. A roller mechanism 305 is fixedly installed on the force sensor 304. The mounting groove 306 is located on the side of the mounting frame 2. The center positions of the mounting groove 306 and the roller mechanism 305 are on the same axial side, and the mounting groove 306 is located on both sides of the roller mechanism 305. A bidirectional adjustment assembly is fixedly installed in the mounting groove 306, and a bidirectional adjustment assembly is rotatably mounted on the bidirectional adjustment assembly. The system includes a limit wheel 309, a first limit rod 302 slidably connected to a mounting bracket 2, and a bidirectional adjustment assembly including a second lead screw 307 rotatably mounted in a mounting groove 306. The two ends of the second lead screw 307 have opposite thread directions, and movable beams 308 are threadedly mounted on both ends of the second lead screw 307. The movable beams 308 are slidably connected in the mounting groove 306 and rotatably connected to the limit wheel 309. The force sensor 304, roller mechanism 305, and limit wheel 309 operate using existing technology. The surfaces of both the roller mechanism 305 and the limit wheel 309 are provided with grooves to increase the contact area with the wire rope and to adjust the wire rope accordingly. With effective protection, after the frame 1 is fixed, the wire rope to be tested corresponds to the roller mechanism 305. At this time, the limit wheels 309 are located on both sides of the wire rope to be tested. The second lead screw 307 drives the movable beam 308 to move, and the movable beam 308 drives the limit wheels 309 to move, so that the limit wheels 309 fit against both sides of the wire rope. The limit wheels 309 apply equal and opposite clamping forces to both sides of the wire rope, thereby centering and limiting the wire rope, eliminating the eccentric torque caused by unilateral force application and the deflection error during testing. This ensures that the center positions of the wire rope and the roller mechanism 305 are on the same axial side, and avoids the wire rope from being centered. During the testing process, the wire rope may deflect or move. To ensure the accuracy of the test results, after the wire rope is positioned, the first lead screw 301 is rotated. The first lead screw 301 moves through the movable frame 303, driving the power sensor 304, roller mechanism 305, and first limit rod 302. This causes the roller mechanism 305 to fit against the wire rope and apply force to it. The first limit rod 302 limits the movable frame 303 to prevent it from deflecting. The force sensor 304 detects the force applied to the wire rope. Based on the detection result of the force sensor 304, the tension of the wire rope is determined, thus completing the wire rope tension test.

[0019] like Figures 1-4 , Figure 6As shown, the support unit includes a sleeve 401, a bolt 402, and an anti-slip toothed plate 409. The sleeve 401 is rotatably mounted on the frame 1. An extension assembly is fixedly mounted on the end of the sleeve 401. A traction plate 406 is fixedly mounted on the extension assembly. An elastic component is fixedly mounted on the traction plate 406. The anti-slip toothed plate 409 is fixedly mounted on the elastic component. The bolt 402 is threadedly mounted on the frame 1. The lower end of the bolt 402 is slidably connected to the sleeve 401. The extension assembly includes a rotating component 403, which is rotatably mounted on the sleeve. At the end of 401, a third lead screw 404 is threadedly installed at the center of the rotating component 403. The third lead screw 404 is fixedly connected to the traction plate 406. A second limiting rod 405 is fixedly installed on the traction plate 406. The second limiting rod 405 is slidably connected to the sleeve 401. The elastic component includes a damping rod 407, which is fixedly installed on the traction plate 406. The telescopic end of the damping rod 407 is fixedly connected to an anti-slip toothed plate 409. A spring 408 is sleeved on the damping rod 407. When not in use, the sleeve 401 is in a bent state. The third lead screw 404 is housed within the sleeve 401, increasing the ease of storage and movement of the entire testing instrument. During testing, the frame 1 is placed at the required height, and the sleeve 401 is pushed to move to a position coaxial with the frame 1. The sleeve 401 is then locked in place by bolts 402. Rotating the rotating component 403 moves the third lead screw 404, adjusting the connection length between the third lead screw 404 and the sleeve 401. During adjustment, the second limiting rod 405 controls the movement of the sleeve 401. 01 and the third lead screw 404 are used for limiting. The third lead screw 404 drives the anti-slip toothed plate 409 to move through the traction plate 406 and the damping rod 407, so that the anti-slip toothed plate 409 is attached to the wall or elevator shell, thereby locking and fixing the frame 1. During the measurement process, the damping rod 407 and the spring 408 buffer the external vibration force, effectively preventing the frame 1 from moving or tilting during the measurement process, improving the stability of the frame 1, and avoiding frequent movement and tilting during the detection process from affecting the accuracy of the detection results.

[0020] like Figure 2 , Figure 4 , Figure 6As shown, the displacement unit includes a slide groove 501, which is located on the side of the frame 1. An adjusting member 502 is slidably installed in the slide groove 501. The adjusting member 502 is fixedly connected to the mounting frame 2. A locking mechanism 503 is threadedly installed on the adjusting member 502. The locking mechanism 503 is slidably connected to the slide groove 501. The locking mechanism 503 operates using existing technology. When testing different wire ropes, since the elevator is hoisted by multiple wire ropes, the positions of different wire ropes will deviate. According to the position of the wire rope, the locking mechanism 503 is released from fixing the adjusting member 502. The locking mechanism 503 drives the adjusting member 502 to slide along the slide groove 501. The adjusting member 502 drives the mounting frame 2 to move, thereby adjusting the position of the testing unit so that the testing unit moves to the position corresponding to the wire rope, reducing the positional deviation between the testing unit and the wire rope, and ensuring the accuracy of the testing results. After the adjusting member 502 is adjusted, the locking mechanism 503 locks and fixes the adjusting member 502.

[0021] like Figure 2 , Figure 6 As shown, a level 6 is fixedly installed on the upper surface of the frame 1. The level 6 operates using existing technology. The level 6 facilitates the detection of the levelness of the frame 1, ensuring that the frame 1 is placed in a horizontal state and avoiding the impact of the frame 1 being placed skewed on the accuracy of the detection results.

[0022] Working principle: such as Figures 1-4 , Figure 6 As shown, by moving the frame 1 with the handle, the sleeve 401 is in a bent state, and the third lead screw 404 is stored inside the sleeve 401. The frame 1 is placed at the required testing height, and the sleeve 401 is pushed to move to a position coaxial with the frame 1. The sleeve 401 is locked and fixed by the bolt 402. The rotating part 403 is rotated, which drives the third lead screw 404 to move. The connection length between the third lead screw 404 and the sleeve 401 is adjusted. The third lead screw 404 drives the anti-slip toothed plate 409 to move through the traction plate 406 and the damping rod 407, so that the anti-slip toothed plate 409 is attached to the wall or elevator housing, thereby locking and fixing the frame 1. The level 6 is used to check the levelness of the frame 1, so that the frame 1 is kept horizontal. like Figure 2 , Figure 4 , Figure 6 As shown, according to the position of the wire rope, the locking mechanism 503 releases the fixing of the adjusting member 502, and the locking mechanism 503 drives the adjusting member 502 to slide along the slide groove 501. The adjusting member 502 drives the mounting frame 2 to move, thereby adjusting the position of the detection unit, so that the roller mechanism 305 moves to the position corresponding to the wire rope, and the locking mechanism 503 locks the adjusting member 502. like Figure 1 , Figure 2 , Figures 4-7 As shown, the second lead screw 307 drives the movable beam 308 to move, and the movable beam 308 drives the limiting wheel 309 to move, so that the limiting wheel 309 is in contact with both sides of the wire rope. The limiting wheel 309 applies equal and opposite clamping forces to both sides of the wire rope, thereby centering and limiting the wire rope. The first lead screw 301 is rotated, and the first lead screw 301 moves through the movable frame 303, driving the power sensor 304, the roller mechanism 305 and the first limiting rod 302 to move, so that the roller mechanism 305 is in contact with the wire rope and applies a force to the wire rope. The force sensor 304 detects the force applied to the wire rope, and the tension of the wire rope is determined based on the detection result of the force sensor 304, thus completing the detection of the wire rope tension.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A tension tester for elevator wire ropes, characterized in that, Includes a frame (1), on which a handle, a support unit and a displacement unit are fixedly installed, on which a mounting frame (2) is fixedly installed, and on which a detection unit is fixedly installed; The detection unit includes a first lead screw (301) and a mounting groove (306). The first lead screw (301) is installed at the center of the mounting frame (2) by a threaded connection. A movable frame (303) is rotatably connected to the end of the first lead screw (301). A force sensor (304) and a first limiting rod (302) are fixedly installed on the movable frame (303). A roller mechanism (305) is fixedly installed on the force sensor (304). The mounting groove (306) is located on the side of the mounting frame (2). The center positions of the mounting groove (306) and the roller mechanism (305) are on the same axial side, and the mounting groove (306) is located on both sides of the roller mechanism (305). A bidirectional adjustment component is fixedly installed in the mounting groove (306). A limiting wheel (309) is rotatably installed on the bidirectional adjustment component. The first limiting rod (302) is slidably connected to the mounting frame (2).

2. The elevator wire rope tension tester according to claim 1, characterized in that: The bidirectional adjustment assembly includes a second lead screw (307), which is rotatably installed in the mounting groove (306). The two ends of the second lead screw (307) have opposite thread directions. Movable beams (308) are installed at both ends of the second lead screw (307) through threaded engagement. The movable beams (308) are slidably connected in the mounting groove (306) and are rotatably connected to the limiting wheel (309).

3. The elevator wire rope tension tester according to claim 1, characterized in that: The support unit includes a sleeve (401), a bolt (402), and an anti-slip toothed plate (409). The sleeve (401) is rotatably mounted on the frame (1). An extension component is fixedly mounted on the end of the sleeve (401). A traction plate (406) is fixedly mounted on the extension component. An elastic component is fixedly mounted on the traction plate (406). The anti-slip toothed plate (409) is fixedly mounted on the elastic component. The bolt (402) is mounted on the frame (1) by threaded engagement. The lower end of the bolt (402) is slidably connected to the sleeve (401).

4. The elevator wire rope tension tester according to claim 3, characterized in that: The extension assembly includes a rotating component (403), which is rotatably mounted on the end of the sleeve (401). A third lead screw (404) is threadedly mounted at the center of the rotating component (403). The third lead screw (404) is fixedly connected to the traction plate (406). A second limiting rod (405) is fixedly mounted on the traction plate (406). The second limiting rod (405) is slidably connected to the sleeve (401).

5. The elevator wire rope tension tester according to claim 3, characterized in that: The elastic component includes a damping rod (407), which is fixedly installed on the traction plate (406). The telescopic end of the damping rod (407) is fixedly connected to the anti-slip toothed plate (409), and a spring (408) is sleeved on the damping rod (407).

6. The elevator wire rope tension tester according to claim 1, characterized in that: The displacement unit includes a slide groove (501), which is disposed on the side of the frame (1). An adjusting member (502) is slidably installed in the slide groove (501). The adjusting member (502) is fixedly connected to the mounting bracket (2). A locking mechanism (503) is installed on the adjusting member (502) by means of a thread engagement. The locking mechanism (503) is slidably connected to the slide groove (501).

7. The elevator wire rope tension tester according to claim 1, characterized in that: A level (6) is fixedly installed on the upper surface of the frame (1).

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