Elevator steel wire rope strength detection device

Abstract

The utility model discloses an elevator steel wire rope strength detection device, including upper crossbeam and lower crossbeam. The elevator steel wire rope strength detection device, the lower part inboard fixed connection of stand column frame has lower crossbeam, and the inboard rotation of lower crossbeam is installed with winding guide pulley, and the bottom surface fixed mounting of upper crossbeam has hydraulic cylinder, and the telescopic end fixed connection of hydraulic cylinder has push -plate, and the top of push -plate is equipped with the carrier plate, and two with the fixed wire sleeve corresponding of winding guide pulley are loaded on carrier plate, and the inboard circumference of fixed wire sleeve is equipped with slope groove, and one with its adaptation inclined bottom clamping block is slidably connected in slope groove, and the centring side of inclined bottom clamping block evenly is equipped with antiskid groove, and the top of fixed wire sleeve is connected with gland, and the top surface of gland is pressed in inclined bottom clamping block, and when tension, steel wire rope is pulled down inclined bottom clamping block through friction, and through slope groove direction, form the effect of clamping in the middle, can form the clamping effect of more tight when tension, avoid the situation of pulling off.

Description

Technical Field

[0001] This utility model relates to the field of steel wire rope strength testing technology, specifically an elevator steel wire rope strength testing device. Background Technology

[0002] As an important means of transportation in modern cities, the safety of elevators is directly related to the lives of passengers. The steel wire rope, as the main load-bearing component of an elevator, directly affects its stability and safety.

[0003] A search revealed a patent document with publication number CN 223051043 U, which discloses an elevator wire rope strength testing device. This device tests the strength of elevator wire ropes and clamps and fixes both ends of the wire rope when spiked.

[0004] While the existing technology provides convenient testing, the fixed clamping force of the fixture during testing makes it prone to pull-out under high tension, leading to frequent test interruptions. This makes it extremely inconvenient to use and limits testing to lower tension values. Therefore, this paper proposes an elevator wire rope strength testing device to optimize the existing technology. Utility Model Content

[0005] The purpose of this invention is to provide an elevator wire rope strength testing device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An elevator wire rope strength testing device includes symmetrically arranged column frames. An upper crossbeam is fixedly connected to the upper inner side of the column frames, and a lower crossbeam is fixedly connected to the lower inner side of the column frames. A winding guide wheel is rotatably installed on the inner side of the lower crossbeam. A hydraulic cylinder is fixedly installed on the bottom surface of the upper crossbeam. A push plate is fixedly connected to the telescopic end of the hydraulic cylinder. A carrier plate is provided above the push plate. Two wire fixing sleeves corresponding to the winding guide wheel are mounted on the carrier plate. A sloping groove is formed on the inner circumference of the wire fixing sleeve. A matching inclined bottom clamp is slidably connected in the sloping groove. Anti-slip grooves are evenly formed on the center side of the inclined bottom clamp. A pressure cap is threaded to the top of the wire fixing sleeve and presses against the top surface of the inclined bottom clamp.

[0008] As a further embodiment of this utility model: two positioning rings are symmetrically fixedly connected on the carrier plate, the positioning rings correspond to and are adapted to the wire fixing sleeve, and the wire fixing sleeve is inserted into the positioning ring.

[0009] As a further improvement of this utility model: the bottom surface of the carrier plate is symmetrically and fixedly connected to two guide rods, and a guide sleeve is slidably sleeved on the outer side of the guide rod, and the guide sleeve is fixedly connected to the upper crossbeam.

[0010] As a further improvement of this utility model: a gasket is provided on the inner side of the pressure cap, the gasket abuts against the top surface of the inclined bottom clamping block and slides in close contact, and a rubber gasket is provided between the gasket and the pressure cap.

[0011] As a further embodiment of this utility model: a pressure sensor is fixedly installed between the carrier plate and the push plate, and a pressure display is fixedly installed on the column frame. The pressure sensor and the pressure display are electrically connected, and the pressure display is externally connected to a power supply and a switch.

[0012] As a further improvement of this utility model: the hydraulic cylinder is connected to a hydraulic pump station via a pipeline, and the hydraulic pump station is externally connected to a power supply and a switch.

[0013] As a further improvement of this utility model, a rotating handle is fixedly connected to the outer side of both the wire sleeve and the pressure cap.

[0014] As a further embodiment of this utility model: a back plate is fixedly connected to the back of the column frame, a top plate is fixedly connected to the top of the column frame, a bottom plate is fixedly connected to the bottom of the column frame, and a door is provided on the front side of the column frame. One side of the door is hinged to the column frame, and the other side of the door is locked to the column frame by a door lock.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model uses a column frame to form a support frame with an upper and lower crossbeam. The two ends of the wire rope are fixed by a fixed wire sleeve on the carrier plate. The middle of the wire rope is supported by a winding guide wheel. Tensioning is performed by a hydraulic cylinder. The wire rope inside the fixed wire sleeve is squeezed by the pressure cap and the inclined bottom clamping block, which compresses and fixes the wire rope. During tensioning, the wire rope pulls the inclined bottom clamping block downward by friction and is guided by the inclined groove to form a central clamping effect. This results in a tighter clamping effect during tensioning and prevents pull-out.

[0017] 2. When the pressure cap of this utility model squeezes the inclined bottom clamping block, a pre-tightening force is formed by the rubber pad and the pad ring, so that the inclined bottom clamping block always maintains the effect of clamping in the center under the guidance of the inclined groove, thereby increasing the friction and pulling effect.

[0018] 3. This utility model provides a back plate, top plate, bottom plate, and door on the outside of the column frame to form an external protection effect and prevent the elevator wire rope from breaking and collapsing during inspection, thus avoiding danger. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an elevator wire rope strength testing device.

[0020] Figure 2This is a cross-sectional view of an elevator wire rope strength testing device.

[0021] Figure 3 This is an exploded view of a partial structure in an elevator wire rope strength testing device.

[0022] Figure 4 This is a front perspective view of an elevator wire rope strength testing device.

[0023] Figure 5 This is a three-dimensional view of the rear side of an elevator wire rope strength testing device.

[0024] In the diagram: 1. Column frame; 2. Upper crossbeam; 3. Lower crossbeam; 4. Winding guide wheel; 5. Hydraulic cylinder; 6. Push plate; 7. Carrier plate; 9. Wire fixing sleeve; 10. Inclined groove; 11. Inclined bottom clamping block; 12. Pressure cap; 13. Positioning ring; 14. Guide rod; 15. Guide sleeve; 16. Anti-slip groove; 17. Washer ring; 18. Rubber pad; 19. Pressure display; 20. Hydraulic pump station; 21. Rotating handle; 22. Back plate; 23. Top plate; 24. Bottom plate; 25. Door body; 26. Pressure sensor. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-5 In this embodiment of the utility model, an elevator wire rope strength testing device includes symmetrically arranged column frames 1. An upper crossbeam 2 is fixedly connected to the upper inner side of the column frame 1, and a lower crossbeam 3 is fixedly connected to the lower inner side of the column frame 1. Both the upper crossbeam 2 and the lower crossbeam 3 are composed of two I-beams with an installation gap in between. A winding guide wheel 4 is rotatably connected to the inner side of the lower crossbeam 3. A hydraulic cylinder 5 is fixedly installed on the bottom surface of the upper crossbeam 2, and a push plate 6 is fixedly connected to the telescopic end of the hydraulic cylinder 5. A [missing information - likely a device or structure] is provided above the push plate 6. The carrier plate 7 has two wire fixing sleeves 9 corresponding to the winding guide wheel 4. The carrier plate 7 has a round hole for the wire rope to pass through. The wire fixing sleeve 9 is hollow. The inner circumference of the wire fixing sleeve 9 has a sloping groove 10. Each sloping groove 10 is slidably connected to a matching inclined bottom clamping block 11. The inclined bottom clamping block 11 has anti-slip grooves 16 evenly distributed on the center side. The anti-slip grooves 16 increase the stability of clamping. The top of the wire fixing sleeve 9 is threaded with a pressure cap 12. The pressure cap 12 is hollow and presses against the top surface of the inclined bottom clamping block 11.

[0027] The support frame is formed by the column frame 1, the upper crossbeam 2, and the lower crossbeam 3. The wire rope is fixed at both ends by the wire fixing sleeve 9 on the carrier plate 7. The middle of the wire rope is supported by the winding guide wheel 4. The tensioning is driven by the hydraulic cylinder 5. The wire rope in the wire fixing sleeve 9 is squeezed by the pressure cover 12 and the inclined bottom clamp 11 is squeezed and fixed by the inclined bottom clamp 11. During tensioning, the wire rope pulls the inclined bottom clamp 11 downward by friction and is guided by the inclined groove 10 to form a central clamping effect. This results in a tighter clamping effect during tensioning and avoids pull-out.

[0028] Two positioning rings 13 are symmetrically fixedly connected on the carrier plate 7. The positioning rings 13 correspond to and are adapted to the wire fixing sleeve 9. The wire fixing sleeve 9 is inserted into the positioning rings 13.

[0029] The positioning ring 13 is used to position the wire fixing sleeve 9 to prevent it from moving on the carrier plate 7.

[0030] Two guide rods 14 are symmetrically and fixedly connected to the bottom surface of the carrier plate 7. A guide sleeve 15 is slidably sleeved on the outer side of the guide rod 14, and the guide sleeve 15 is fixedly connected inside the upper crossbeam 2.

[0031] The relative sliding of the guide rod 14 and the guide sleeve 15 guides the lifting and lowering of the carrier plate 7, increasing the stability of the movement of the carrier plate 7.

[0032] A gasket 17 is provided on the inner side of the pressure cap 12. The gasket 17 abuts against the top surface of the inclined bottom clamping block 11 and slides in close contact. A rubber gasket 18 is provided between the gasket 17 and the pressure cap 12.

[0033] When the pressure cap 12 presses the inclined bottom clamping block 11, a pre-tightening force is formed by the rubber pad 18 and the pad ring 17, so that the inclined bottom clamping block 11 always maintains the effect of clamping in the center under the guidance of the inclined groove 10, thereby increasing the friction and pulling effect.

[0034] A pressure sensor 26 is fixedly installed between the carrier plate 7 and the push plate 6. A pressure display 19 is fixedly installed on the column frame 1. The pressure sensor 26 is electrically connected to the pressure display 19. The pressure display 19 is externally connected to a power supply and a switch. The signal line passes through the back plate 22.

[0035] The pressure sensor 26 detects the applied pressure and displays it in conjunction with the pressure display 19, allowing the testing personnel to intuitively judge the force situation.

[0036] The hydraulic cylinder 5 is connected to the hydraulic pump station 20 through a pipe that passes through the back plate 22. The hydraulic pump station 20 is installed on the top plate 23 and is connected to an external power supply and switch.

[0037] The hydraulic cylinder 5 can be extended and retracted by the hydraulic pump station 20.

[0038] A rotating handle 21 is fixedly connected to the outside of both the wire fixing sleeve 9 and the pressure cap 12.

[0039] By rotating the handle 21, the fixing sleeve 9 and the pressure cap 12 can be rotated relative to each other using a tool, thus creating a threaded locking effect.

[0040] A back plate 22 is fixedly connected to the back of the column frame 1, a top plate 23 is fixedly connected to the top of the column frame 1, a bottom plate 24 is fixedly connected to the bottom of the column frame 1, and a door 25 is provided on the front side of the column frame 1. One side of the door 25 is hinged to the column frame 1, and the other side of the door 25 is locked to the column frame 1 by a door lock.

[0041] A back panel 22, a top panel 23, a bottom panel 24, and a door 25 are installed on the outside of the column frame 1 to form an external protective effect and prevent the elevator wire rope from breaking and collapsing during inspection, thus avoiding danger.

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

[0043] In use, first, the elevator wire rope is routed around the winding guide wheel 4, then passed through the carrier plate 7 and through the fixing sleeve 9. The fixing sleeve 9 is placed inside the positioning ring 13. At this time, the inclined bottom clamping blocks 11 are inserted into the inclined groove 10 in sequence, the pressure cover 12 is put on and tightened. At this time, the pressure cover 12 squeezes the inclined bottom clamping blocks 11, and the inclined bottom clamping blocks 11 squeeze and fix the wire rope. When the pressure cover 12 squeezes the inclined bottom clamping blocks 11, a pre-tightening force is formed through the rubber pad 18 and the pad ring 17, so that the inclined bottom clamping blocks 11 are inclined. Under the guidance of the ramp 10, the wire rope always maintains a central clamping effect. It is driven by the hydraulic cylinder 5 to perform tensioning and strength testing. During tensioning, the wire rope pulls the inclined bottom clamping block 11 downward through friction. Guided by the ramp 10, it forms a central clamping effect, which can form a tighter clamping effect during tensioning and avoid pull-out. During testing, the pressure sensor 26 detects the pressure applied and displays it with the pressure display 19, which makes it convenient for the testers to intuitively judge the force.

[0044] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A strength testing device for elevator wire ropes, comprising symmetrically arranged column frames (1), characterized in that: The upper inner side of the column frame (1) is fixedly connected to an upper crossbeam (2), the lower inner side of the column frame (1) is fixedly connected to a lower crossbeam (3), the inner side of the lower crossbeam (3) is rotatably installed with a winding guide wheel (4), the bottom surface of the upper crossbeam (2) is fixedly installed with a hydraulic cylinder (5), the telescopic end of the hydraulic cylinder (5) is fixedly connected to a push plate (6), a carrier plate (7) is provided above the push plate (6), the carrier plate (7) is loaded with two wire fixing sleeves (9) corresponding to the winding guide wheel (4), the inner circumference of the wire fixing sleeve (9) is provided with a sloping groove (10), and a sloping bottom clamping block (11) that is adapted to it is slidably connected in the sloping groove (10). The center side of the sloping bottom clamping block (11) is evenly provided with an anti-slip groove (16), and the top of the wire fixing sleeve (9) is threadedly connected with a pressure cap (12), and the pressure cap (12) is pressed on the top surface of the sloping bottom clamping block (11).

2. The elevator wire rope strength testing device according to claim 1, characterized in that: Two positioning rings (13) are symmetrically fixedly connected on the carrier plate (7). The positioning rings (13) correspond to and are adapted to the wire fixing sleeve (9). The wire fixing sleeve (9) is inserted into the positioning rings (13).

3. The elevator wire rope strength testing device according to claim 1, characterized in that: The bottom surface of the carrier plate (7) is symmetrically and fixedly connected to two guide rods (14). The outer side of the guide rods (14) is slidably fitted with guide sleeves (15), which are fixedly connected to the upper crossbeam (2).

4. The elevator wire rope strength testing device according to claim 1, characterized in that: The inner side of the pressure cap (12) is provided with a gasket (17), which abuts against the top surface of the inclined bottom clamp (11) and slides in close contact. A rubber pad (18) is provided between the gasket (17) and the pressure cap (12).

5. The elevator wire rope strength testing device according to claim 1, characterized in that: A pressure sensor (26) is fixedly installed between the carrier plate (7) and the push plate (6). A pressure display (19) is fixedly installed on the column frame (1). The pressure sensor (26) and the pressure display (19) are electrically connected. The pressure display (19) is externally connected to a power supply and a switch.

6. The elevator wire rope strength testing device according to claim 1, characterized in that: The hydraulic cylinder (5) is connected to the hydraulic pump station (20) through a pipeline. The hydraulic pump station (20) is externally connected to a power supply and a switch.

7. The elevator wire rope strength testing device according to claim 1, characterized in that: A rotating handle (21) is fixedly connected to the outer side of both the wire sleeve (9) and the pressure cap (12).

8. The elevator wire rope strength testing device according to claim 1, characterized in that: The back of the column frame (1) is fixedly connected to a back plate (22), the top of the column frame (1) is fixedly connected to a top plate (23), the bottom of the column frame (1) is fixedly connected to a bottom plate (24), and a door (25) is provided on the front side of the column frame (1). One side of the door (25) is hinged to the column frame (1), and the other side of the door (25) is locked to the column frame (1) by a door lock.

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