Elevator steel wire rope strength inspection device

Abstract

The utility model discloses an elevator steel wire rope strength inspection device, which relates to the technical field of steel wire rope inspection, and comprises a bottom plate, a driving mechanism arranged at the top of the bottom plate, a support frame fixedly connected to the top of the bottom plate, a swing mechanism arranged on one side of the support frame close to the center of the bottom plate, and the driving mechanism used for driving the swing mechanism to swing. A rolling mechanism is arranged at the top of the supporting frame, a sliding mechanism is arranged at the top of the bottom plate and comprises two fixing plates, and limiting grooves are formed in the fixing plates. The beneficial effects are that the motor of the device drives the rocking bar to swing up and down to pull the steel wire rope and drive the lower pulley to move up and down, and the steel wire rope bears the weight of the balancing weight when the lower pulley moves up, so that loading and no-load scenes of an elevator in the working process are simulated, and the working intensity of the steel wire rope is tested; when the steel wire rope is broken or torn, the yield strength of the steel wire rope can be calculated according to the matching weight of the balancing weight and the operation time of the motor.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel wire rope inspection technical field, in particular to a kind of elevator steel wire rope strength testing device. BACKGROUND

[0002] Steel wire rope is the helical steel wire bundle that steel wire with the geometric dimension in accordance with requirements is twisted together according to certain rule, and steel wire rope is composed of steel wire, rope core and lubricating grease. Steel wire rope is twisted into strand by multiple layers of steel wire first, and then twisted into helical rope around rope core by a certain number of strands.

[0003] For example, the patent document with the announcement number CN221078345U discloses an elevator steel wire rope strength testing device, which comprises a bottom plate, a first vertical plate and a second vertical plate are fixed on the surface of the bottom plate, a driving rod is installed between the first vertical plate and the second vertical plate, a first gear is installed on one end of the driving rod close to the second vertical plate, and a supporting plate is fixed on the surface of the second vertical plate. The servo motor drives the first gear to rotate through the second gear and the transmission belt, the first gear drives the driving rod to rotate, which facilitates the reciprocating movement of the pull plate driven by the driving rod, and is conducive to repeatedly pulling the steel wire rope by the pull plate through the horizontal plate and the horizontal rod, so that the clamped steel wire rope is in a taut or relaxed state, thereby achieving the purpose of detecting the breaking of the steel wire rope.

[0004] However, the distance from the first vertical plate to the second vertical plate of the device is fixed, so the moving distance of the pull plate on the driving rod is also fixed, and therefore the force on the steel wire rope can only be adjusted by controlling the length of the steel wire rope, which is relatively limited and cannot dynamically test the elevator steel wire rope. UTILITY MODEL CONTENTS

[0005] The utility model aims to solve the above problems and provides an elevator steel wire rope strength testing device.

[0006] The utility model realizes the above-mentioned purposes by the following technical solutions:

[0007] An elevator steel wire rope strength testing device comprises a bottom plate, a driving mechanism is arranged on the top of the bottom plate, a supporting frame is fixedly connected to the top of the bottom plate, a swing mechanism is arranged on one side of the supporting frame close to the center of the bottom plate, the driving mechanism is used for driving the swing mechanism to swing, a rolling mechanism is arranged on the top of the supporting frame, a sliding mechanism is arranged on the top of the bottom plate, the sliding mechanism comprises two fixed plates, a limiting groove is formed in the fixed plate, a limiting rod is slidably connected to the limiting groove, a lower pulley is fixedly connected to the limiting rod, the lower pulley is located on the opposite surface of the two fixed plates, and elastic mechanisms are arranged on the front and rear sides of the sliding mechanism.

[0008] Preferably, the driving mechanism comprises a support plate fixedly connected to the top of the bottom plate, a motor fixedly connected to the front side of the support plate, a first rotating shaft fixedly connected to the output end of the motor, the first rotating shaft being rotatably connected to the support plate, a rotating disc fixedly connected to the first rotating shaft, and a connecting rod rotatably connected to the rotating disc.

[0009] Preferably, the swinging mechanism comprises two protrusions fixedly connected to one side of the support frame close to the center of the bottom plate, a rocker rotatably connected to the opposite surfaces of the two protrusions, the top and bottom of the rocker being rotatably connected to the top of the connecting rod, a vertical plate fixedly connected to the top and bottom of the rocker, a horizontal rod fixedly connected to the front side of the vertical plate, a sliding block slidably connected to the horizontal rod, a sliding groove formed in the opposite surfaces of the vertical plate and the sliding block, and a bolt threadedly connected to the horizontal rod.

[0010] Preferably, the opposite surfaces of the vertical plate and the sliding block are fixedly connected with a plurality of protruding nails arranged in a circumferential array.

[0011] Preferably, the rolling mechanism comprises a second rotating shaft fixedly connected to the top of the support frame, two limiting plates fixedly connected to the second rotating shaft, and an upper pulley rotatably connected to the second rotating shaft.

[0012] Preferably, the elastic mechanism comprises two extension plates fixedly connected to the front and back of the limiting rod, two vertical columns fixedly connected to the top of the extension plates, a plurality of counterweights sleeved on the vertical columns, and two telescopic rods fixedly connected to the bottom of the extension plates.

[0013] The motor drives the rocker to swing up and down to pull the steel wire rope, and simultaneously drives the lower pulley to move up and down, the steel wire rope bears the weight of the counterweights when the lower pulley moves up, the force of the steel wire rope can be adjusted by adjusting the number of the counterweights, the steel wire rope does not bear the weight of the counterweights when the lower pulley moves down, the working scene of loading and unloading of the elevator in the working process can be simulated by the up and down reciprocating movement of the lower pulley, so as to test the working strength of the steel wire rope, and the yield strength of the steel wire rope can be calculated by the matching weight of the counterweights and the operation time of the motor when the steel wire rope is broken or torn.

[0014] The additional technical features and advantages of the present application will be more apparent in the following description, or can be understood through the specific practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, and together with the following detailed description, serve to explain the present application, but do not constitute a limitation on the present application. In the drawings:

[0016] Figure 1It is the front view solid structure map of the elevator steel wire rope strength testing device of the utility model.

[0017] Figure 2 It is the back view solid structure map of the elevator steel wire rope strength testing device of the utility model.

[0018] Figure 3 It is the front view of the elevator steel wire rope strength testing device of the utility model.

[0019] Figure 4 It is the left view of the elevator steel wire rope strength testing device of the utility model.

[0020] Figure 5 It is the sliding mechanism structure diagram of the elevator steel wire rope strength testing device of the utility model.

[0021] Figure 6 It is the clamping mechanism section view of the elevator steel wire rope strength testing device of the utility model.

[0022] Figure 7 It is the Figure 1 Enlarged view of A in the middle of the elevator steel wire rope strength testing device of the utility model.

[0023] The reference signs are explained as follows: 1, bottom plate; 201, support plate; 202, motor; 203, first rotating shaft; 204, rotating disc; 205, connecting rod; 3, support frame; 401, protruding block; 402, rocker; 403, vertical plate; 404, horizontal rod; 405, sliding groove; 406, sliding block; 407, bolt; 408, protruding nail; 501, second rotating shaft; 502, limiting plate; 503, upper pulley; 601, fixed plate; 602, limiting groove; 603, limiting rod; 604, lower pulley; 701, extension plate; 702, vertical column; 703, counterweight; 704, telescopic rod. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0025] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the utility model.

[0026] The utility model makes further illustration in connection with the drawings:

[0027] As Figures 1-7 The utility model discloses an elevator steel wire rope strength detection device, including the bottom plate 1, the top of bottom plate 1 is provided with drive mechanism, the top of bottom plate 1 is fixedly connected with support frame 3, and the side of support frame 3 near the center of bottom plate 1 is provided with swing mechanism, and drive mechanism is used for driving swing mechanism swing, and the top of support frame 3 is provided with rolling mechanism, and the top of bottom plate 1 is provided with sliding mechanism, and sliding mechanism includes two fixed plates 601, and the fixed plate 601 is opened in the limiting slot 602, and the limiting slot 602 is slidably connected with the limiting rod 603, and the limiting rod 603 is fixedly connected with the lower pulley 604, and the lower pulley 604 is located on the opposite side of two fixed plates 601, and when the lower pulley 604 moves up and down, the limiting rod 603 will be slid up and down in the limiting slot 602, and the front and rear sides of sliding mechanism are provided with elastic mechanism.

[0028] Drive mechanism includes support plate 201, and support plate 201 is fixedly connected at the top of bottom plate 1, and the front side of support plate 201 is fixedly connected with motor 202, and the output end of motor 202 is fixedly connected with first rotary shaft 203, and first rotary shaft 203 is rotatably connected with support plate 201, and first rotary shaft 203 is fixedly connected with rotary table 204, and rotary table 204 is rotatably connected with connecting rod 205, and starting motor 202, and motor 202 drives first rotary shaft 203 rotation, and first rotary shaft 203 rotation drives rotary table 204 rotation, and rotary table 204 rotation drives connecting rod 205 movement.

[0029] Swing mechanism includes two lugs 401, and lug 401 is fixedly connected on the side of support frame 3 near the center of bottom plate 1, and the opposite side of two lugs 401 is rotatably connected with rocker 402, and the rear side of rocker 402 is rotatably connected with the top of connecting rod 205, and the top and bottom of rocker 402 are fixedly connected with vertical plate 403, and the front side of vertical plate 403 is fixedly connected with cross bar 404, and cross bar 404 is slidably connected with sliding block 406, and the top and bottom of rocker 402 are provided with sliding groove 405, and sliding block 406 is slidably connected on sliding groove 405, and cross bar 404 is threadedly connected with bolt 407, and first the steel wire rope one end is wound on the upper cross bar 404, then the bolt 407 is screwed to make sliding block 406 move to vertical plate 403, and the one end of steel wire rope is clamped, and then the other end is fixed according to the above mode.

[0030] The opposite side of vertical plate 403 and sliding block 406 is fixedly connected with a plurality of protruding nails 408, and a plurality of protruding nails 408 are distributed in a circular array, and protruding nail 408 can enhance the friction force of vertical plate 403 and sliding block 406 and steel wire rope.

[0031] The rolling mechanism comprises a second rotating shaft 501 fixedly connected to the top of the support frame 3, two limiting plates 502 fixedly connected to the second rotating shaft 501, and an upper pulley 503 rotatably connected to the second rotating shaft 501 and located on the opposite surface of the two limiting plates 502.

[0032] The elastic mechanism comprises two extension plates 701 fixedly connected to the front and back of the limiting rod 603, two vertical columns 702 fixedly connected to the top of the extension plate 701, a plurality of counterweights 703 sleeved on the vertical column 702, and two telescopic rods 704 fixedly connected to the bottom of the extension plate 701.

[0033] Working principle: when using the device, the operator first winds one end of the steel wire rope on the upper horizontal rod 404, then twists the bolt 407 to move the sliding block 406 to the vertical plate 403, clamps one end of the steel wire rope, and the convex nail 408 can enhance the friction between the vertical plate 403, the sliding block 406 and the steel wire rope. After fixing one end of the steel wire rope, pull the other end of the steel wire rope around the upper pulley 503 and the lower pulley 604, and then fix it in the above-mentioned manner. After fixing is completed, start the motor 202, the motor 202 drives the first rotating shaft 203 to rotate, the first rotating shaft 203 drives the rotating disc 204 to rotate, the rotating disc 204 drives the connecting rod 205 to move, the connecting rod 205 drives the rocker 402 to swing up and down, the rocker 402 swings up and down to pull the steel wire rope to slide on the upper pulley 503 and the lower pulley 604. Since the length of the steel wire rope is fixed, the lower pulley 604 will move up and down through the steel wire rope when the rocker 402 swings up and down. When the lower pulley 604 moves upward, the limiting rod 603 will slide upward in the limiting groove 602, the limiting rod 603 moves upward to drive the extension plate 701 to move upward, the extension plate 701 moves upward to drive the plurality of counterweights 703 to move upward, and the steel wire rope will bear the weight of the counterweights 703. By adjusting the number of counterweights 703, the stress of the steel wire rope can be adjusted. When the lower pulley 604 moves downward, the steel wire rope will not bear the weight of the counterweights 703. By reciprocating the lower pulley 604, the loading and unloading working scenes of the elevator during operation can be simulated to test the working strength of the steel wire rope. When the steel wire rope breaks or tears, the yield strength of the steel wire rope can be calculated by the matching weight of the counterweights 703 and the operation time of the motor 202.

[0034] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. An elevator steel wire rope strength testing device comprising a base plate (1), characterized in that: The top of the bottom plate (1) is provided with a driving mechanism, the top of the bottom plate (1) is fixedly connected with a support frame (3), the support frame (3) is provided with an oscillating mechanism on the side close to the center of the bottom plate (1), the driving mechanism is used for driving the oscillating mechanism to oscillate, the top of the support frame (3) is provided with a rolling mechanism, the top of the bottom plate (1) is provided with a sliding mechanism, the sliding mechanism comprises two fixed plates (601), the fixed plate (601) is provided with a limiting groove (602), the limiting groove (602) is slidably connected with a limiting rod (603), the limiting rod (603) is fixedly connected with a lower pulley (604), the lower pulley (604) is located on the opposite side of the two fixed plates (601), and the sliding mechanism is provided with an elastic mechanism on the front and rear sides.

2. An elevator wire rope strength inspection device according to claim 1, characterized in that: The driving mechanism comprises a supporting plate (201), the supporting plate (201) is fixedly connected to the top of the bottom plate (1), the front side of the supporting plate (201) is fixedly connected with a motor (202), the output end of the motor (202) is fixedly connected with a first rotating shaft (203), the first rotating shaft (203) is rotatably connected with the supporting plate (201), and the first rotating shaft (203) is fixedly connected with a rotating disc (204).

3. An elevator wire rope strength inspection device according to claim 2, characterized in that: The oscillating mechanism comprises two protrusions (401), the protrusions (401) are fixedly connected to the side of the support frame (3) close to the center of the bottom plate (1), the opposite sides of the two protrusions (401) are rotatably connected with a rocker (402), the rear side of the rocker (402) is rotatably connected with the top of the connecting rod (205), the top and bottom of the rocker (402) are fixedly connected with a vertical plate (403), the front side of the vertical plate (403) is fixedly connected with a horizontal rod (404), the horizontal rod (404) is slidably connected with a sliding block (406), the top and bottom of the rocker (402) are provided with a sliding groove (405), the sliding block (406) is slidably connected in the sliding groove (405), and the horizontal rod (404) is threadedly connected with a bolt (407).

4. An elevator wire rope strength testing device as defined in claim 3, wherein: The opposite sides of the vertical plate (403) and the sliding block (406) are fixedly connected with a plurality of protruding nails (408), and the plurality of protruding nails (408) are distributed in a circumferential array.

5. An elevator wire rope strength inspection device as defined in claim 1, wherein: The rolling mechanism comprises a second rotating shaft (501), the second rotating shaft (501) is fixedly connected to the top of the support frame (3), the second rotating shaft (501) is fixedly connected with two limiting plates (502), the opposite sides of the two limiting plates (502) are rotatably connected with an upper pulley (503), and the upper pulley (503) is rotatably connected to the second rotating shaft (501).

6. An elevator wire rope strength inspection device as defined in claim 1, wherein: The elastic mechanism comprises two extension plates (701), which are fixedly connected to the front and rear sides of the limiting rod (603), the top of the extension plate (701) is fixedly connected with two stand columns (702), the stand column (702) is sleeved with a plurality of counterweights (703), and the bottom of the extension plate (701) is fixedly connected with two telescopic rods (704).

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