Steel wire rope looseness detection device

Abstract

The utility model discloses a steel wire rope looseness detection device, and belongs to the technical field of traction equipment. A steel wire rope loosening detection device comprises a trapezoid movable frame and a supporting seat, a movable pin shaft is fixed to the outer side wall of the trapezoid movable frame, the trapezoid movable frame is rotationally connected with the supporting seat through the movable pin shaft, a cylindrical feeler lever is fixed to the front end of the trapezoid movable frame, and a steel wire rope is arranged in the trapezoid movable frame in a penetrating mode. The steel wire rope is located in the middle of the cylindrical feeler lever, and an inductance type proximity switch electrically connected with the control PLC system is fixed to the outer side wall of the supporting base. When the steel wire rope is loosened, the steel wire rope presses and touches the cylindrical feeler lever, so that the rear end of the trapezoidal movable frame is tilted, the inductance type proximity switch is triggered to work, signals are transmitted back to the control PLC system through the inductance type proximity switch, and then the driving device can be controlled to stop operation of corresponding equipment mechanisms in an interlocking mode. The reliability of the rope loosening action of the device is guaranteed, and the safety of equipment operation is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of traction equipment, and specifically relates to a steel wire rope slack rope detection device. BACKGROUND

[0002] Steel wire rope traction is a technology that uses steel wire rope as a traction medium to achieve object movement or fixation through force transmission, and is widely used in hoisting, transportation, construction and industrial equipment. Steel wire rope is twisted from multiple high-strength steel wires, has high tensile strength, wear resistance and good flexibility, and can withstand heavy load and complex working conditions. In the traction process, the steel wire rope transmits tension through devices such as drums and pulleys to drive equipment operation or fix object position. For example, in a crane, steel wire rope traction is used to lift and move heavy objects; in an elevator, steel wire rope traction is used to lift and move the car; in bridge construction, steel wire rope traction is used to tension and fix the structure. To ensure safety and reliability, the steel wire rope traction system is usually equipped with tension detection, overload protection and anti-loose devices, which can monitor the state of the steel wire rope in real time and take appropriate measures. In addition, regular maintenance and inspection of the wear and tear of the steel wire rope are also important links to ensure its performance.

[0003] In real use, the steel wire rope that plays a traction role is prone to looseness due to long use time and lack of timely maintenance. After the steel wire rope loosens, it is extremely easy to cause the object to lose balance and fall, which can easily cause a fall injury to the vehicle or other personnel safety accidents.

[0004] Therefore, a steel wire rope slack rope detection device is needed to solve the problems raised in the background. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a steel wire rope slack rope detection device to solve the problems raised in the background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A steel wire rope slack rope detection device, comprising a trapezoidal movable frame and a support seat, a movable pin shaft is fixed on the outer side wall of the trapezoidal movable frame, the trapezoidal movable frame is rotationally connected with the support seat through the movable pin shaft, a cylindrical touch rod is fixed at the front end of the trapezoidal movable frame, a steel wire rope is arranged through the inside of the trapezoidal movable frame, the steel wire rope is located at the middle of the cylindrical touch rod, an inductive proximity switch electrically connected with a control PLC system is fixed on the outer side wall of the support seat, and the inductive proximity switch is arranged at the rear end of the trapezoidal movable frame.

[0008] It should be noted in the scheme that a counterweight balancing block is fixed in the inside of the trapezoidal movable frame, and the counterweight balancing block is located at the rear end of the trapezoidal movable frame.

[0009] Further, the outer side wall of the support seat is fixed with an upper stopper, which is arranged above the top end of the trapezoidal movable frame.

[0010] Further, the outer side wall of the support seat is fixed with an upper stopper, which is arranged above the top end of the trapezoidal movable frame.

[0011] As a preferred, the movable pin shaft is provided with two and the two movable pin shafts are symmetrically distributed.

[0012] Compared with the prior art, the steel wire rope slack detection device provided by the utility model has at least the following beneficial effects:

[0013] If the steel wire rope is slack, the steel wire rope presses the cylindrical touch rod, so that the rear end of the trapezoidal movable frame is raised, the inductive proximity switch is triggered to work, the signal is conducted back to the control PLC system through the inductive proximity switch, and then the corresponding equipment mechanism operation can be controlled to be stopped in chain by the driving device, the reliability of the device slack action is ensured, the safety of the equipment operation is improved, the operation risk is further reduced, the accidents and downtime time caused by the slack failure are reduced, and a powerful guarantee is provided for efficient and safe equipment operation. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0015] In the drawing:

[0016] 1, trapezoidal movable frame; 2, steel wire rope; 3, movable pin shaft; 4, counterweight balance block; 5, support seat; 6, cylindrical touch rod; 7, upper stopper; 8, lower stopper; 9, inductive proximity switch. DETAILED DESCRIPTION

[0017] The utility model will be further described below in combination with examples.

[0018] Please refer to Figure 1The utility model provides a steel wire rope loose rope detection device, including trapezoidal movable frame 1 and support base 5, the outer side wall of trapezoidal movable frame 1 is fixed with movable pin shaft 3, trapezoidal movable frame 1 is connected with support base 5 rotation through movable pin shaft 3, the front end of trapezoidal movable frame 1 is fixed with cylindrical contact lever 6, the inside of trapezoidal movable frame 1 is provided with steel wire rope 2, and the steel wire rope 2 is located at the middle of cylindrical contact lever 6, the outer side wall of support base 5 is fixed with inductive proximity switch 9 of electric connection with control PLC system, and inductive proximity switch 9 is located at the rear end of trapezoidal movable frame 1 setting, trapezoidal movable frame 1 is connected with support base 5 rotation through movable pin shaft 3, and trapezoidal movable frame 1 keeps horizontal state by counterweight balancing block 4 of rear end under normal conditions, if steel wire rope 2 is loose, steel wire rope 2 presses and touches cylindrical contact lever 6, so that the rear end of trapezoidal movable frame 1 is warped, triggers inductive proximity switch 9 and works, and inductive proximity switch 9 is conducted back to control PLC system with signal, and then can control drive device interlock and stop corresponding equipment mechanism operation, guarantee the reliability of the device loose rope action, improve the security of equipment operation, further reduce the operation risk, reduce the accident and downtime possibly caused by loose rope failure, provide strong guarantee for efficient and safe equipment operation.

[0019] Further as Figure 1 Described in detail, the inside of trapezoidal movable frame 1 is fixed with counterweight balancing block 4, and counterweight balancing block 4 is located at the rear end of trapezoidal movable frame 1, and when working, under normal conditions, the trapezoidal movable frame 1 keeps horizontal state by the counterweight balancing block 4 set, improves the stability of the position of trapezoidal movable frame 1 during normal use.

[0020] The scheme has the following working process: trapezoidal movable frame 1 is connected with support base 5 rotation through movable pin shaft 3, and trapezoidal movable frame 1 keeps horizontal state by counterweight balancing block 4 of rear end under normal conditions, if steel wire rope 2 is loose, steel wire rope 2 presses and touches cylindrical contact lever 6, so that the rear end of trapezoidal movable frame 1 is warped, triggers inductive proximity switch 9 and works, and inductive proximity switch 9 is conducted back to control PLC system with signal, and then can control drive device interlock and stop corresponding equipment mechanism operation, guarantee the reliability of the device loose rope action.

[0021] Further as Figure 1 Described in detail, the outer side wall of support base 5 is fixed with upper stop block 7, and upper stop block 7 is located above the top end of trapezoidal movable frame 1 and is set, and when working, the upstroke position of trapezoidal movable frame 1 is limited and protected by designing upper stop block 7, to avoid the upward excessive deviation of trapezoidal movable frame 1.

[0022] Further as Figure 1As shown, it is worth noting that the outer side wall of the support seat 5 is fixed with a lower stop block 8, which is arranged below the bottom end of the trapezoidal movable frame 1. In actual operation, the lower stop block 8 limits and protects the downward travel position of the trapezoidal movable frame 1, avoiding excessive downward deviation of the trapezoidal movable frame 1.

[0023] Further as shown, Figure 1 As shown, it is worth noting that the outer side wall of the support seat 5 is fixed with a lower stop block 8, which is arranged below the bottom end of the trapezoidal movable frame 1. In actual operation, the lower stop block 8 limits and protects the downward travel position of the trapezoidal movable frame 1, avoiding excessive downward deviation of the trapezoidal movable frame 1.

[0024] In summary: the trapezoidal movable frame 1 is rotatably connected with the support seat 5 through the movable pin shaft 3. In normal state, the trapezoidal movable frame 1 is kept in horizontal state by the counterweight balance block 4 at the rear end. When the steel wire rope 2 is loose, the steel wire rope 2 presses the cylindrical touch rod 6, so that the rear end of the trapezoidal movable frame 1 is raised, triggering the inductive proximity switch 9 to work. The inductive proximity switch 9 transmits signals back to the control PLC system, which can control the drive device to stop the corresponding equipment mechanism from running, ensuring the reliability of the device loose rope action, improving the safety of the equipment operation, further reducing the operation risk, reducing the accidents and downtime that may be caused by loose rope failure, providing a strong guarantee for efficient and safe equipment operation. The upper stop block 7 limits and protects the upward travel position of the trapezoidal movable frame 1, avoiding excessive upward deviation of the trapezoidal movable frame 1. The lower stop block 8 limits and protects the downward travel position of the trapezoidal movable frame 1, avoiding excessive downward deviation of the trapezoidal movable frame 1.

[0025] The inductive proximity switch 9 can be purchased in the market, and the inductive proximity switch 9 is provided with a power supply, which belongs to mature technology in the field and has been fully disclosed, so the description is not repeated here.

Claims

1. A steel wire rope slack rope detection device comprising a trapezoidal movable frame (1) and a supporting seat (5), characterized in that, The outer side wall of the trapezoidal movable frame (1) is fixed with movable pin shafts (3), the trapezoidal movable frame (1) is rotatably connected with the support base (5) through the movable pin shafts (3), the front end of the trapezoidal movable frame (1) is fixed with a cylindrical touch rod (6), the inside of the trapezoidal movable frame (1) is provided with a steel wire rope (2) penetrating through, the steel wire rope (2) is located at the middle of the cylindrical touch rod (6), the outer side wall of the support base (5) is fixed with an inductive proximity switch (9) electrically connected with a control PLC system, and the inductive proximity switch (9) is located at the rear end of the trapezoidal movable frame (1).

2. A wire rope slack line detection device according to claim 1, characterized in that The inside of the trapezoidal movable frame (1) is fixed with a counterweight balancing block (4), and the counterweight balancing block (4) is located at the rear end of the trapezoidal movable frame (1).

3. A wire rope slack line detection device according to claim 1, wherein, The outer side wall of the support base (5) is fixed with an upper stop block (7), and the upper stop block (7) is located above the top end of the trapezoidal movable frame (1).

4. A wire rope slack detection device according to claim 3, characterized in that The outer side wall of the support base (5) is fixed with a lower stop block (8), and the lower stop block (8) is located below the bottom end of the trapezoidal movable frame (1).

5. A wire rope slack rope detection device according to claim 2, wherein The movable pin shafts (3) are provided with two and the two movable pin shafts (3) are symmetrically distributed.

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