Tension detection device for steel wire rope of elevator

Abstract

The utility model relates to an elevator steel wire rope tensioning force detection device. Two transverse supporting rods (21) are arranged on a bottom plate (11) in a relatively sliding manner; the adjusting rod (24) is matched with the first threaded hole (23) through an external thread; two inclined supporting rods (25) are oppositely arranged at the end, away from the device body (10), of the transverse supporting rod (21). An adjusting rod (24) is controlled to rotate, two transverse supporting rods (21) slide in the opposite directions along a bottom plate (11) under the cooperation of external threads and first threaded holes (23), so that a pressing disc (22) abuts against the wall body of the elevator shaft wall, the device body (10) is fixed to the elevator shaft wall, dismounting and recycling are convenient, and the actual use cost is reduced; and meanwhile, the ends of the two inclined supporting rods (25) below are controlled to abut against the wall body of the elevator shaft wall, so that the installation stability of the device body (10) is enhanced, and it is avoided that the device body (10) rotates or deviates, and consequently the detection result deviation of the tension force of the steel wire rope is caused.

Description

TECHNICAL FIELD

[0001] The utility model relates to special equipment detection technical field especially, and it is a kind of elevator steel wire rope tension detection device. BACKGROUND

[0002] In the existing elevator, elevator car and counterweight are mainly connected by steel wire rope, and the up-and-down operation of car is realized under the driving of traction machine. Therefore, traction steel wire rope is an important component of elevator traction system, and the load received by elevator during operation is high. The tension balance of traction steel wire rope during operation will affect the normal operation of the entire elevator and the service life of traction steel wire rope. At present, when detecting the tension of elevator steel wire rope, tension detector is generally used for tensile test, or the steel wire rope is pushed and the tension of the steel wire rope is judged according to the swing amplitude combined with operation experience. However, the above-mentioned method is relatively rough for tension detection, and has high dependence on operation experience, which is not conducive to the normal detection of elevator safety.

[0003] A Chinese utility model patent with the authorization announcement number CN220465545U discloses another elevator steel wire rope tension detector. The control push block moves to drive the pressure sensor to contact and press the steel wire rope, so that the steel wire rope deforms and bends and the pressure value is measured. The displacement sensor detects the size of the steel wire rope between the vertical position and the bending position, so as to calculate the current tension of the steel wire rope. However, the above-mentioned detector is fixed on the elevator shaft wall through the fastening plate and the assembly hole, which is not convenient for disassembly and recycling. Therefore, the detector is used as a matching component of each elevator, and the actual use cost is high. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is that the existing elevator steel wire rope tension detector is fixed on the elevator shaft wall through the fastening plate and the assembly hole, which is not convenient for disassembly and recycling. Therefore, the detector is used as a matching component of each elevator, and the actual use cost is high.

[0005] In order to solve the above-mentioned problem, the utility model provides an elevator steel wire rope tension detection device. A bottom plate is arranged on the device body. Two transverse supporting rods are arranged on the bottom plate and slide relative to each other. A pressure disc capable of abutting against the wall is arranged at the end of the transverse supporting rod away from the device body. A first threaded hole is arranged at the end of the transverse supporting rod close to the device body. An adjusting rod is rotatably arranged on the bottom plate. The two ends of the adjusting rod are provided with external threads with opposite rotation directions. The adjusting rod is matched with the first threaded hole through the external threads. Two inclined supporting rods are arranged at the end of the transverse supporting rod away from the device body. The inclined supporting rods are arranged below the transverse supporting rods and the end portions of the inclined supporting rods can abut against the wall.

[0006] The elevator steel wire rope tension detection device provided by the utility model has the following technical features.

[0007] The bottom plate is provided with a sliding groove, and the transverse support rod is provided with a sliding rod along the length direction of the transverse support rod, the sliding rod slides along the sliding groove, and the cross section of the sliding rod and the sliding groove is dovetail-shaped.

[0008] The middle part of the adjusting rod is provided with a first knob, the bottom plate is provided with two mounting plates, and the first knob is arranged between the two mounting plates; the mounting plate is provided with a through hole, and the adjusting rod is arranged in the through hole.

[0009] The pressing plate is provided with a plurality of anti-skid nails away from the transverse support rod.

[0010] The transverse support rod is provided with a mounting rod away from the device body, the mounting rod is horizontally arranged below the transverse support rod and is perpendicular to the transverse support rod, both ends of the mounting rod are provided with vertical rods, the lower end of the vertical rod is rotatably provided with an inclined cylinder, the inclined cylinder is internally provided with an internal thread, the upper end of the inclined support rod is provided with an external thread matched with the internal thread, the lower end of the inclined support rod can abut against the wall body, and the inclined support rod is provided with a second knob.

[0011] Both ends of the mounting rod are provided with circular grooves, and the upper end of the vertical rod is inserted into the circular grooves; both ends of the mounting rod are provided with second threaded holes, the second threaded holes are provided with screw columns matched with the second threaded holes, one end of the screw column can abut against the vertical rod, and the other end of the screw column is provided with a third knob.

[0012] The vertical rod is provided with a ring groove corresponding to the screw column, and one end of the screw column can be inserted into the ring groove and abut against the vertical rod.

[0013] The device body is provided with a receiving hole and an opening communicated with the receiving hole, so that the steel wire rope passes through the opening and enters the receiving hole; the device body is fixed with an electric push rod, the device body is horizontally provided with a sliding hole, the sliding hole is vertically arranged with the transverse support rod, the output end of the electric push rod is slidably arranged in the sliding hole and is connected with a push block, the push block is arranged on one side of the receiving hole, the side, away from the electric push rod, of the push block is provided with a pressure sensor, the pressure sensor is electrically connected with a controller and is controlled by the controller; the other side of the receiving hole is provided with a top block, and the two top blocks are symmetrically arranged above and below the push block.

[0014] The utility model has the advantages that the adjusting rod is controlled to rotate, under the cooperation of the external thread and the first threaded hole, the two transverse support rods slide along the bottom plate towards opposite directions, the pressing plate abuts against the wall of the elevator shaft, the device body is fixed on the wall of the elevator shaft, the device body is convenient to disassemble and recycle, and the actual use cost is reduced; meanwhile, the two inclined support rod ends at the bottom abut against the wall of the elevator shaft, the installation stability of the device body is enhanced, the device body is prevented from rotating or deviating to cause the deviation of the detection result of the tension of the steel wire rope. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the axonometric drawing of the utility model;

[0016] Figure 2 For Figure 1 a local enlarged view of the device body;

[0017] Figure 3 is a sectional view of the device body;

[0018] Figure 4 is the bottom view of the utility model. DETAILED DESCRIPTION

[0019] Hereinafter, the utility model will be described in detail with reference to the drawings and in conjunction with embodiments. It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0020] As Figures 1 to 4 shown, the utility model elevator steel wire rope tension detection device, device body 10 is equipped with bottom plate 11, two transverse support rods 21 are equipped with on bottom plate 11 relative sliding, the end of transverse support rod 21 away from device body 10 is equipped with the pressure disc 22 that can be butt-jointed with wall body, the first threaded hole 23 is opened in the end of transverse support rod 21 close to device body 10, the adjusting rod 24 is rotatably equipped with on bottom plate 11, the both ends of adjusting rod 24 are opened with opposite screw threads, and adjusting rod 24 is matched with the first threaded hole 23 through external thread.

[0021] Control adjusting rod 24 rotation, under the cooperation of external thread and first threaded hole 23, two transverse support rods 21 slide along bottom plate 11 towards opposite directions, so that pressure disc 22 is butt-jointed with elevator shaft wall, to fix device body 10 in elevator shaft wall, facilitate disassembly and recycling, reduce actual use cost, control the end of two inclined support rods 25 below and the wall of elevator shaft wall butt-jointed at the same time, to enhance the installation stability of device body 10, avoid its rotation or deviation and cause the detection result deviation of steel wire rope tension.

[0022] Preferably, the bottom plate 11 is opened with a sliding groove 26, and the sliding rod 27 is provided on the transverse support rod 21 along the length direction thereof, the sliding rod 27 slides along the sliding groove 26, and the cross section of the sliding rod 27 and the sliding groove 26 is dovetail shape matched with each other.

[0023] Wherein, the sliding rod 27 extends from the end close to the device body 10 to the end away from the device body 10.

[0024] Of course, the cross section of the sliding rod 27 and the sliding groove 26 can also be T-shaped matched with each other.

[0025] Preferably, the middle part of the adjusting rod 24 is provided with a first knob 28, and the bottom plate 11 is provided with two mounting plates 29, and the first knob 28 is arranged between the two mounting plates 29; the mounting plate 29 is provided with a through hole, and the adjusting rod 24 is arranged in the through hole.

[0026] The first knob 28 drives the adjusting rod 24 to rotate, so that the two transverse supporting rods 21 slide along the sliding groove 26 in opposite directions, and the two mounting plates 29 can fix the positions of the bottom plate 11, the first knob 28 and the device body 10 relative to the total length of the two transverse supporting rods 21.

[0027] The adjusting structure can be a lead screw nut structure, specifically, a lead screw is arranged on the bottom plate 11 and is threadedly connected with the sliding rod 27, and other adjusting structures can also be selected, which is not limited here.

[0028] Preferably, the side of the pressure plate 22 away from the transverse supporting rod 21 is provided with a plurality of anti-skid nails 30, so as to increase the friction between the pressure plate 22 and the elevator shaft wall, thereby enhancing the installation stability of the device body 10.

[0029] The tip of the anti-skid nail 30 is conical.

[0030] Preferably, the end of the transverse supporting rod 21 away from the device body 10 is provided with a mounting rod 31, the mounting rod 31 is arranged horizontally below the transverse supporting rod 21 and is perpendicular to the transverse supporting rod 21, both ends of the mounting rod 31 are provided with vertical rods 32, the lower end of the vertical rod 32 is rotatably provided with an inclined cylinder 33, the inclined cylinder 33 is internally provided with an internal thread, the upper end of the inclined supporting rod 25 is provided with an external thread matched with the internal thread, the lower end of the inclined supporting rod 25 can abut against the wall, and the inclined supporting rod 25 is provided with a second knob 34.

[0031] After the pressure plate 22 abuts against the elevator shaft wall, the inclined cylinder 33 is controlled to rotate relative to the vertical rod 32, so that the lower end of the inclined supporting rod 25 abuts against the elevator shaft wall, thereby enhancing the installation stability of the device body 10 and avoiding rotation or deviation of the device body 10 to cause deviation of the detection result of the tension of the steel wire rope. Further rotating the second knob 34 makes the inclined supporting rod 25 slide away from the inclined cylinder 33, so that the lower end of the inclined supporting rod 25 tightly abuts against the elevator shaft wall, thereby further enhancing the installation stability of the device body 10.

[0032] The gap exists between the mounting rod 31 and the pressure plate 22.

[0033] The lower end of the vertical rod 32 is connected with the upper end of the inclined cylinder 33 through a hinge.

[0034] The lower end of the inclined supporting rod 25 is conically arranged.

[0035] Preferably, the two ends of the mounting rod 31 are provided with circular grooves 35, and the upper end of the vertical rod 32 is inserted into the circular grooves 35; the two ends of the mounting rod 31 are provided with second threaded holes 36, and the second threaded holes 36 are provided with studs 37 matched therewith, one end of the stud 37 is capable of abutting against the vertical rod 32, and the other end of the stud 37 is provided with a third knob 38.

[0036] The vertical rod 32 is capable of rotating in the circular groove 35 to adjust the angle of the inclined supporting rod 25, and is locked through the stud 37.

[0037] Preferably, the vertical rod 32 is provided with a ring groove 39 corresponding to the stud 37, and one end of the stud 37 is capable of being inserted into the ring groove 39 and abutting against the vertical rod 32.

[0038] Preferably, the device body 10 is provided with a receiving hole 12 and an opening 13 communicated with the receiving hole 12, so that the steel wire rope passes through the opening 13 and enters the receiving hole 12; the device body 10 is fixed with an electric push rod 14, and the device body 10 is horizontally provided with a sliding hole perpendicular to the horizontal supporting rod 21, the output end of the electric push rod 14 is slidably arranged in the sliding hole and connected with a push block 15, the push block 15 is arranged on one side of the receiving hole 12, the side of the push block 15 away from the electric push rod 14 is provided with a pressure sensor 16, the pressure sensor 16 is electrically connected with a controller and controlled by the controller; the other side of the receiving hole 12 is provided with a top block 17, and the two top blocks 17 are symmetrically arranged on the push block 15.

[0039] The steel wire rope passes through the opening 13 and enters the receiving hole 12, and one side of the steel wire rope is in contact with the two top blocks 17, and then the device body 10 is installed on the wall of the elevator shaft; the output end of the electric push rod 14 is controlled to extend, so as to drive the push block 15 and the pressure sensor 16 to move and abut against the other side of the steel wire rope, the steel wire rope is deformed under the force, and the pressure sensor 16 can obtain the tension data of the steel wire rope at this time, and the tension can be calculated through data acquisition of the controller.

[0040] Of course, other driving modes can be used instead of the electric push rod 14, such as a screw nut structure, a hydraulic cylinder structure or a pneumatic cylinder structure.

[0041] The specific implementation mode that the pressure sensor 16 obtains the tension data of the steel wire rope and calculates the tension through the data acquisition of the controller is a prior art, which is not described herein.

[0042] The working principle of the utility model is as follows:

[0043] The steel wire rope enters the accommodating hole 12 through the opening 13, so that one side of the steel wire rope is in contact with the two top blocks 17, and then the device body 10 is installed on the elevator shaft wall, and the specific installation process is as follows: the adjusting rod 24 is driven to rotate by the first knob 28, and under the cooperation of the external thread and the first threaded hole 23, the two transverse supporting rods 21 slide along the sliding groove 26 in opposite directions along the sliding rod 27 until the anti-skid nails 30 on the pressure plate 22 abut against the elevator shaft wall, so that the device body 10 is fixed on the elevator shaft wall, facilitating disassembly and recycling, and reducing the actual use cost; the inclined cylinder 33 is controlled to rotate relative to the vertical rod 32, so that the lower ends of the plurality of inclined supporting rods 25 abut against the elevator shaft wall, so as to enhance the installation stability of the device body 10, avoid rotation or deviation of the device body 10, and cause deviation of the detection result of the tension of the steel wire rope; the inclined supporting rod 25 is further slid away from the inclined cylinder 33 by rotating the second knob 34, so that the lower end of the inclined supporting rod 25 abuts against the elevator shaft wall tightly, and the installation stability of the device body 10 is further enhanced; at the same time, the vertical rod 32 can rotate in the circular groove 35, so that the angle of the inclined supporting rod 25 can be adjusted according to the actual use, and the screw column 37 is locked;

[0044] After the device body 10 is installed on the elevator shaft wall, the output end of the electric push rod 14 is controlled to extend, the push block 15 and the pressure sensor 16 are driven to move and abut against the other side of the steel wire rope, the steel wire rope is deformed under the force, the pressure sensor 16 can obtain the tension data of the steel wire rope at this time, and the tension can be calculated by the data acquisition of the controller.

[0045] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An elevator steel wire rope tension detecting device characterized by, The device body (10) is provided with a bottom plate (11), two transverse support rods (21) are arranged on the bottom plate (11) and can slide relative to each other, the end of the transverse support rod (21) away from the device body (10) is provided with a pressure plate (22) capable of abutting against a wall, the end of the transverse support rod (21) close to the device body (10) is provided with a first threaded hole (23), the bottom plate (11) is rotatably provided with an adjusting rod (24), the two ends of the adjusting rod (24) are provided with external threads with opposite rotation directions, and the adjusting rod (24) is matched with the first threaded hole (23) through the external threads.

2. The elevator steel cord tension detection device according to claim 1, characterized in that, The bottom plate (11) is provided with a sliding groove (26), and the transverse support rod (21) is provided with a sliding rod (27) along the length direction of the transverse support rod (21), the sliding rod (27) slides along the sliding groove (26), and the cross section of the sliding rod (27) and the sliding groove (26) is a dovetail shape matched with each other.

3. The elevator steel cord tension detection device according to claim 1, characterized in that, The middle part of the adjusting rod (24) is provided with a first knob (28), the bottom plate (11) is provided with two mounting plates (29), and the first knob (28) is arranged between the two mounting plates (29); the mounting plate (29) is provided with a through hole, and the adjusting rod (24) is arranged in the through hole.

4. The elevator steel cord tension detection device according to claim 1, characterized in that, The side of the pressure plate (22) away from the transverse support rod (21) is provided with a plurality of anti-skid nails (30).

5. The elevator steel cord tension detection device according to claim 1, characterized in that, The end of the transverse support rod (21) away from the device body (10) is provided with a mounting rod (31), the mounting rod (31) is arranged horizontally below the transverse support rod (21) and is perpendicular to the transverse support rod (21), the two ends of the mounting rod (31) are provided with vertical rods (32), the lower end of the vertical rod (32) is rotatably provided with an inclined cylinder (33), the inclined cylinder (33) is provided with an internal thread, the upper end of the inclined support rod (25) is provided with an external thread matched with the internal thread, the lower end of the inclined support rod (25) can abut against the wall, and the inclined support rod (25) is provided with a second knob (34).

6. The elevator steel cord tension detection device according to claim 5, characterized in that The two ends of the mounting rod (31) are provided with circular grooves (35), and the upper end of the vertical rod (32) is inserted into the circular grooves (35); the two ends of the mounting rod (31) are provided with second threaded holes (36), the second threaded holes (36) are provided with screw columns (37) matched therewith, one end of the screw column (37) can abut against the vertical rod (32), and the other end of the screw column (37) is provided with a third knob (38).

7. The elevator steel cord tension detection device according to claim 6, characterized in that The vertical rod (32) is provided with a ring groove (39) corresponding to the screw column (37), and one end of the screw column (37) can be inserted into the ring groove (39) and abut against the vertical rod (32).

8. The elevator steel cord tension detection device of claim 1, wherein, The device body (10) is provided with a containing hole (12) and an opening (13) communicated with the containing hole (12), so that the steel wire rope enters the containing hole (12) through the opening (13); the device body (10) is fixed with an electric push rod (14), the device body (10) is horizontally provided with a sliding hole, the sliding hole is vertically arranged with the horizontal supporting rod (21), the output end of the electric push rod (14) is slidably arranged in the sliding hole and connected with a push block (15), the push block (15) is arranged on one side of the containing hole (12), one side of the push block (15) away from the electric push rod (14) is provided with a pressure sensor (16), the pressure sensor (16) is electrically connected with a controller and controlled by the controller; the other side of the containing hole (12) is provided with a top block (17), the two top blocks (17) are symmetrically arranged on the push block (15) in up and down directions.

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