Double-locking device for replacing steel wire rope

Abstract

The utility model relates to the technical field of steel wire rope locking, in particular to a double-locking device for replacing a steel wire rope, which comprises a mounting plate and two clamping mechanisms arranged on the mounting plate. The clamping mechanism comprises a sliding assembly, a sliding block, a groove, a connecting block, a clamping plate, a limiting block, a clamping block, a sliding groove, a sliding block, a T-shaped groove, a T-shaped block, a frame, an electromagnet and an auxiliary plate, the sliding block is connected with the mounting plate 1 through the sliding assembly, the groove is formed in the sliding block, one end of the connecting block extends into the groove, and the other end of the connecting block extends into the clamping plate. One end of the connecting block is connected with the clamping plate, the other end of the connecting block is connected with the clamping plate, one end of the clamping block is connected with the connecting block, the other end of the clamping block extends out of the groove, the sliding groove is formed in the connecting block, and one end of the sliding block extends into the sliding groove. The problem that existing equipment is inconvenient to disassemble is solved.

Description

Technical Field

[0001] This utility model relates to the field of wire rope locking technology, specifically a double locking device for replacing wire ropes. Background Technology

[0002] As is well known, the double locking device for wire rope replacement is a mechanical device specifically designed for wire rope maintenance and replacement. Its core function is to stably fix the wire rope to be replaced through two independent and coordinated locking mechanisms, preventing displacement or detachment caused by force relaxation, vibration or accidental pulling.

[0003] However, the double locking devices for replacing wire ropes currently on the market generally adopt an integrated design of the clamping plate with the main structure. After long-term use, if the surface of the clamping plate needs to be replaced due to wear (such as a reduction in the height of the teeth exceeding 1mm), the entire device must be disassembled or cut and separated with professional tools. This not only makes the replacement process cumbersome (usually taking more than 30 minutes), but may also cause deformation of the main structure due to mechanical stress during disassembly and assembly, thereby reducing the clamping accuracy and causing problems such as slippage and loosening when clamping the wire rope, which seriously affects the stability and operational safety of the locking device. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a double locking device for replacing steel wire ropes.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a double locking device for replacing steel wire rope, comprising a mounting plate and a clamping mechanism. The clamping mechanism is disposed on the mounting plate, and two clamping mechanisms are provided. Each clamping mechanism includes a sliding component, a sliding block, a groove, a connecting block, a clamping plate, a limiting block, a locking block, a sliding groove, a slider, a T-slot, a T-block, a frame, an electromagnet, and an auxiliary plate. The sliding block is connected to the mounting plate 1 via the sliding component. The groove is formed on the sliding block. One end of the connecting block extends into the groove, and the other end of the connecting block is connected to the clamping plate. One end of the block is connected to the connecting block, and the other end of the locking block extends out of the groove. The sliding groove is formed on the connecting block. One end of the slider extends into the sliding groove, and the other end of the slider is connected to the limiting block. The limiting block extends into the groove, and the limiting block abuts against the connecting block that extends into the groove. The T-slot is formed on the mounting plate, and one end of the T-block extends into the T-slot. The other end of the T-block is connected to the frame. One end of the electromagnet is fixedly connected to the frame, and the other end of the electromagnet attracts the slider. The clamping plate is provided with an auxiliary plate, and the auxiliary plate is provided with threaded holes.

[0008] To improve the sliding effect, the present invention is improved in that the slider matches the slide groove, and the T-groove matches the T-block.

[0009] To facilitate operation of the equipment, the present invention is improved by providing a controller on the front of the mounting plate, and the controller is electrically connected to the sliding component.

[0010] To improve stability, this utility model is improved by having two clamping mechanisms arranged symmetrically.

[0011] To improve the connection effect, the present invention is improved by welding the mounting plate to the clamping plate.

[0012] To improve the strength of the mounting plate, this utility model is improved by using alloy steel as the mounting plate material.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a double locking device for replacing wire ropes, which has the following advantages:

[0015] The wire rope replacement device features a double locking mechanism. The clamping plate of this structure adopts a detachable modular design, which has significant maintenance convenience and cost advantages. When the clamping plate wears down due to long-term use, no additional tools are needed. Simply follow three steps in sequence: disconnect the electromagnet power supply, push the frame to disengage the T-block from directly above the slider, and pull the slider upward to release the limit. The entire disassembly and replacement of the clamping plate and connecting block can be completed within 5 minutes. Compared with the traditional integrated welded structure, which requires more than 30 minutes for replacement, the maintenance efficiency is improved by 60%. This design breaks through the technical limitations of the traditional device's "whole replacement". During maintenance, only the worn clamping plate component needs to be replaced, which greatly reduces maintenance costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This utility model Figure 1 A magnified schematic diagram of the partial structure at point A in the middle;

[0018] Figure 3 This is a schematic diagram of the axonal structure of the present invention;

[0019] Figure 4 This utility model Figure 1 The front view;

[0020] In the diagram: 1. Mounting plate; 2. Clamping mechanism; 3. Sliding component; 4. Sliding block; 5. Groove; 6. Connecting block; 7. Clamping plate; 8. Locking block; 9. Slide groove; 10. Slider; 11. T-slot; 12. T-block; 13. Frame; 14. Electromagnet; 15. Auxiliary plate; 16. Controller; 17. Limit block. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4A double locking device for replacing steel wire rope includes a mounting plate 1 and a clamping mechanism 2. The clamping mechanism 2 is mounted on the mounting plate 1, and there are two clamping mechanisms 2. Each clamping mechanism 2 includes a sliding assembly 3, a sliding block 4, a groove 5, a connecting block 6, a clamping plate 7, a limiting block 17, a locking block 8, a sliding groove 9, a slider 10, a T-slot 11, a T-block 12, a frame 13, an electromagnet 14, and an auxiliary plate 15. The sliding block 4 is connected to the mounting plate 1 via the sliding assembly 3. The groove 5 is formed on the sliding block 4. One end of the connecting block 6 extends into the groove 5, and the other end of the connecting block 6 is connected to the clamping plate 7. One end of the locking block 8 is connected to the connecting block 6. The other end of the card block 8 extends out of the groove 5. The slide groove 9 is formed on the connecting block 6. One end of the slider 10 extends into the slide groove 9. The other end of the slider 10 is connected to the limiting block 17. The limiting block 17 extends into the groove 5. The limiting block 17 abuts against the connecting block 6 that extends into the groove 5. The T-slot 11 is formed on the mounting plate 1. One end of the T-block 12 extends into the T-slot 11. The other end of the T-block 12 is connected to the frame 13. One end of the electromagnet 14 is fixedly connected to the frame 13. The other end of the electromagnet 14 attracts the slider 10. The clamping plate 7 is provided with an auxiliary plate 15. The auxiliary plate 15 is provided with a threaded hole.

[0023] Working principle

[0024] In use, first fix the mounting plate 1 to a rigid structure such as an elevator guide rail bracket or a crane load-bearing beam with M12 bolts (the fixing point must meet the tensile strength ≥50kN) to ensure the stability of the device base. After connecting to AC220V mains power (the power connection adopts a waterproof quick-connect interface, which is a well-known technology in this field), place the wire rope to be replaced between two sets of symmetrically distributed clamping plates 7. Start the sliding assembly 3 (a transmission mechanism consisting of a servo motor, a threaded rod, and a guide groove) through the controller 16. The motor drives the threaded rod to rotate, which drives the sliding block 4 to move linearly along the guide groove of the mounting plate 1, so that the clamping plates 7 on the connecting block 6 close synchronously until the tooth structure on the surface of the clamping plate 7 tightly bites the surface of the wire rope (the clamping force is monitored in real time by a pressure sensor, with a rated value of 15-20MPa).

[0025] During the movement of sliding block 4, T-block 12 drives frame 13 to slide synchronously in T-slot 11 of mounting plate 1. When clamped in place, M8 bolts are passed through the threaded holes of auxiliary plate 15 to perform secondary mechanical locking on the two sets of clamping plates 7 (the bolt preload torque is 40-50 N·m), forming a double protection of "mechanical clamping + bolt limit". This design can prevent clamping from loosening due to sudden power failure and ensure zero displacement of the wire rope when it is cut or replaced.

[0026] When the clamping plate 7 shows wear due to long-term use (replace when the wear of the teeth exceeds 1mm), disassemble it according to the following steps:

[0027] Disconnect the power supply to the electromagnet 14 so that it stops attracting the martensitic stainless steel slider 10.

[0028] Manually push the frame 13 to make the T-block 12 slide in the T-slot 11 until the frame 13 is disengaged from directly above the slider 10;

[0029] Pull the slider 10 upward to make it slide along the groove 9 (T-shaped section), causing the limiting block 17 to separate from the groove 5 of the sliding block 4;

[0030] Push the connecting block 6 horizontally so that it moves in the groove 5. This will cause the connecting block 6 to move the locking block 8 and retract it into the groove 5. At this time, the limiting of the connecting block 6 and the sliding block 4 is released, and the disassembly can be completed by lifting it upward.

[0031] During installation, simply reverse the disassembly steps. New parts can be purchased from the manufacturer; details will not be provided here.

[0032] The electromagnet 14 mentioned in the text has a rated adsorption force of ≥500N, ensuring the stability of adsorption.

[0033] To improve the transmission accuracy and stability of the sliding assembly, in this embodiment, the slider 10 and the slide groove 9 adopt a T-shaped cross-section clearance fit design (fit tolerance is H7 / g6) to ensure that the slider slides in the slide groove without obvious shaking and with uniform resistance; the contact surfaces of the T-shaped groove 11 and the T-shaped block 12 are ground (surface roughness Ra≤3.2μm), and the two adopt a transition fit (tolerance zone is H8 / js7), which not only ensures the smooth sliding of the frame 13 along the T-shaped groove 11, but also effectively prevents lateral displacement caused by vibration, so that the clamping mechanism 2 maintains precise trajectory control during movement.

[0034] To achieve intelligent control of the equipment and synchronous coordination of the dual clamping mechanisms, this embodiment embeds an integrated controller 16 on the front of the mounting plate 1. The controller adopts a PLC control system and is electrically connected to the drive motors of the two sets of sliding components 3 through shielded cables. It can trigger the synchronous start and stop, speed adjustment and position calibration of the dual sliding components with one key. The controller 16 panel is equipped with dual-color status indicator lights (green for operation / red for fault) and an emergency stop button. It integrates an overload protection module. When any sliding component is jammed, it can automatically cut off the power and issue an audible and visual alarm to ensure operational safety and system coordination.

[0035] To improve the stability of the device during locking operations, in this embodiment, the two clamping mechanisms 2 are symmetrically distributed with the central axis of the mounting plate 1 as the symmetrical reference. This symmetrical layout allows the two sets of clamping mechanisms 2 to generate a balanced clamping force when clamping the wire rope, effectively offsetting the tilting or displacement of the device caused by unilateral force. Especially when the tension of the wire rope changes suddenly, the symmetrical structure can maintain the balance of the device through bidirectional force transmission, ensuring the overall posture stability during the double locking process and improving the reliability of the equipment under heavy load conditions.

[0036] To ensure the connection strength and structural stability between the mounting plate and the clamping plate, in this embodiment, the mounting plate 1 and the clamping plate 7 are fixedly connected by a continuous full welding process. During welding, full circumference welding is performed along the edge where the two plates meet, and the weld height is not less than 5mm. Non-destructive testing (such as magnetic particle testing) is performed to ensure that there are no defects such as incomplete welding or cracks, so that the mounting plate and the clamping plate form a rigid whole, which can effectively withstand the axial tension and lateral torque generated during the clamping of the wire rope, avoid the locking effect due to loose connection, and improve the overall reliability and durability of the device.

[0037] To enhance the structural strength and fatigue resistance of the mounting plate, in this embodiment, the mounting plate 1 is made of 42CrMo alloy steel. After quenching and tempering, the yield strength of this material is not less than 930MPa and the tensile strength is over 1100MPa. Compared with ordinary carbon steel, its deformation resistance is increased by 40%, which can effectively withstand the heavy load generated when the wire rope is clamped (maximum tensile force ≥60kN). At the same time, the mounting plate made of alloy steel has good wear resistance and impact resistance, and can adapt to the mechanical stress in frequent disassembly and assembly scenarios, ensuring that it will not deform or break due to insufficient strength during long-term use, thus ensuring the overall reliability of the device from the material level.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double locking device for replacing wire rope, comprising a mounting plate (1) and a clamping mechanism (2), characterized in that: The clamping mechanism (2) is disposed on the mounting plate (1). There are two clamping mechanisms (2). Each clamping mechanism (2) includes a sliding component (3), a sliding block (4), a groove (5), a connecting block (6), a clamping plate (7), a limiting block (17), a locking block (8), a sliding groove (9), a slider (10), a T-slot (11), a T-block (12), a frame (13), an electromagnet (14), and an auxiliary plate (15). The sliding block (4) is connected to the mounting plate (1) through the sliding component (3). The groove (5) is formed on the sliding block (4). One end of the connecting block (6) extends into the groove (5), and the other end of the connecting block (6) is connected to the clamping plate (7). One end of the locking block (8) is connected to the connecting block (6), and the other end of the locking block (8) extends out of the mounting plate (15). The groove (5) is formed on the connecting block (6). One end of the slider (10) extends into the groove (9), and the other end of the slider (10) is connected to the limiting block (17). The limiting block (17) extends into the groove (5) and abuts against the connecting block (6) that extends into the groove (5). The T-slot (11) is formed on the mounting plate (1). One end of the T-block (12) extends into the T-slot (11), and the other end of the T-block (12) is connected to the frame (13). One end of the electromagnet (14) is fixedly connected to the frame (13), and the other end of the electromagnet (14) attracts the slider (10). The clamping plate (7) is provided with an auxiliary plate (15), and the auxiliary plate (15) is provided with a threaded hole.

2. The double locking device for replacing wire rope according to claim 1, characterized in that: The slider (10) matches the groove (9), and the T-slot (11) matches the T-block (12).

3. The double locking device for replacing wire rope according to claim 2, characterized in that: The mounting plate (1) has a controller (16) on its front side, and the controller (16) is electrically connected to the sliding component (3).

4. The double locking device for replacing steel wire rope according to claim 3, characterized in that: The two clamping mechanisms (2) are arranged symmetrically.

5. The double locking device for replacing wire rope according to claim 4, characterized in that: The mounting plate (1) is welded to the clamping plate (7).

6. The double locking device for replacing wire rope according to claim 5, characterized in that: The mounting plate (1) is made of alloy steel.

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