Rapid tightening device for steel wire rope

Abstract

The utility model discloses a quick tightening device for a steel wire rope, which relates to the technical field of steel wire rope tightening and comprises a support, a notch for the steel wire rope to penetrate through is arranged on one side of the support, a plurality of elastic limiting components for limiting the steel wire rope are mounted at the notch, and a tightening column is rotatably arranged in the support. A fixing hook and a locking assembly connected with the fixing hook are arranged in the tightening column, the locking assembly enables the fixing hook and the tightening column to achieve clamping of a steel wire rope, a control rod is arranged on the support, and a transmission assembly is arranged between the control rod and the tightening column. The control rod drives the tightening column to rotate through the transmission assembly to tighten the steel wire rope. The device can be quickly assembled without disassembling the installed steel wire rope, is adaptive to the quick assembly of the arranged steel wire rope, realizes the tightening of the steel wire rope after assembly, does not need to be disassembled or pre-assembled, improves the flexibility of equipment, and is convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of wire rope tightening technology, and in particular to a wire rope quick tightening device. Background Technology

[0002] Wire rope tightening is a crucial operation in engineering work, involving the application of tension to wire ropes and fixing their position using mechanical devices. It is widely used in fields such as construction hoisting, ship mooring, and mountain rescue. For example, in the tower crane industry, because the tower crane trolley is unloaded, the wire rope cannot be effectively tightened. After a period of operation, when the wire rope becomes stretched and its deflection becomes excessive, if it is not tightened in time, the luffing trolley will react sluggishly and sway. Therefore, wire rope tightening is an essential method in these industries.

[0003] Existing wire rope tensioning devices require the tensioning device to be installed on the wire rope before installation, and the two ends of the wire rope to be connected to the corresponding equipment before subsequent operations can be carried out. For wire ropes that have already been installed but have not been fitted with a tensioning device, the wire rope needs to be reinstalled and the tensioning device needs to be fitted during the process, which reduces the flexibility of the equipment and makes it inconvenient to use. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a rapid wire rope tightening device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A wire rope quick tightening device includes a bracket. One side of the bracket has a slot for the wire rope to pass through. Several pairs of elastic limiting components for limiting the wire rope are installed in the slot. A tightening column is rotatably disposed inside the bracket. A fixing hook and a locking component connected to the fixing hook are disposed inside the tightening column. The locking component clamps the wire rope between the fixing hook and the tightening column. A control lever is disposed on the bracket. A transmission component is disposed between the control lever and the tightening column. The control lever drives the tightening column to rotate through the transmission component to tighten the wire rope.

[0007] Preferably, the locking assembly includes a lead screw rotatably disposed within a tightening column, a nut threaded onto the lead screw, a connecting rod matching a fixing hook fixedly connected to the nut, and the end of the connecting rod away from the nut being fixedly connected to the fixing hook.

[0008] Preferably, the number of fixing hooks is set to a minimum of two, one end of the fixing hook extends into the tightening column, and a vertical groove is opened on the part of the fixing hook located on the outside of the tightening column, and friction protrusions are formed on the fixing hook between two adjacent vertical grooves.

[0009] Preferably, the two transmission components include symmetrical support plates fixedly connected to the inner side of the bracket, a worm gear rotatably disposed between the two support plates, a first bevel gear fixedly connected to one end of the control lever, a second bevel gear meshing with the first bevel gear fixedly sleeved on the worm gear, a connecting shaft rotatably disposed on the inner side of the bracket, a rotating gear and a worm wheel fixedly sleeved on the connecting shaft, a toothed ring meshing with the rotating gear fixedly sleeved on the tightening column, and the worm wheel and the worm gear meshing.

[0010] Preferably, the elastic limiting component includes a limiting plate and a limiting rod. The limiting plate is fixedly connected in the slot, and the limiting rod is hinged in the slot via a pin. A spring sheet is installed between the limiting plate and the limiting rod.

[0011] Preferably, the limiting rod is an L-shaped component. In its natural state, one side of the limiting rod contacts the limiting plate and closes the slot. When the limiting rod is subjected to force and rotates, it compresses the spring sheet, causing the slot to open.

[0012] Preferably, a through groove is provided on one side of the bracket, and the position and diameter of the through groove match the tightening column.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this application, the elastic limiting component consists of a limiting rod, a limiting plate and a spring plate. Under normal conditions, the slot is closed. When the wire rope is threaded, the wire rope squeezes the limiting rod to temporarily open the slot. After threading, it automatically resets and locks. The device can be quickly assembled without disassembling the installed wire rope. It is compatible with the rapid assembly of the wire rope that has been laid out. No disassembly or pre-installation is required, which improves the flexibility of the equipment and makes it easy to use.

[0015] 2. In this application, the drive screw rotates, causing the nut to move and drive the connecting rod to push the fixed hook to retract towards the tightening column, thus clamping the wire rope. During clamping, the fixed hook is provided with a vertical groove and forms a friction protrusion, which significantly improves the clamping reliability and achieves the fixation of the wire rope, so as to facilitate the subsequent tightening of the wire rope.

[0016] 3. In this application, after the wire rope is fixed, the first bevel gear is driven to rotate by the control lever, which drives the second bevel gear and the worm gear that mesh with it to rotate. After the worm gear meshes with the worm wheel, the rotating teeth on the connecting shaft drive the gear ring, which drives the tightening column to rotate. The rotation of the tightening column can make the wire rope wrap around the fixed hook, thereby tightening the wire rope. Attached Figure Description

[0017] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a wire rope rapid tightening device;

[0018] Figure 2This utility model provides a partial cross-sectional view of a wire rope quick tightening device;

[0019] Figure 3 This utility model provides a partial structural schematic diagram of a wire rope rapid tightening device;

[0020] Figure 4 This utility model provides a schematic diagram of the locking assembly structure of a wire rope quick tightening device;

[0021] Figure 5 This utility model provides a schematic diagram of the transmission component structure of a wire rope rapid tightening device. Figure 1 ;

[0022] Figure 6 This utility model provides a schematic diagram of the transmission component structure of a wire rope rapid tightening device. Figure 2 .

[0023] Legend: 100, bracket; 101, through groove; 200, slot; 300, elastic limiting component; 301, limiting plate; 302, limiting rod; 303, spring plate; 400, tightening column; 500, fixing hook; 501, vertical groove; 502, friction protrusion; 600, locking component; 601, lead screw; 602, nut; 603, connecting rod; 700, control lever; 800, transmission component; 801, support plate; 802, worm gear; 803, first bevel gear; 804, second bevel gear; 805, connecting shaft; 806, rotating gear; 807, worm wheel; 808, gear ring. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0026] like Figure 1-6As shown, this utility model provides a wire rope quick tightening device, including a bracket 100. A slot 200 for the wire rope to pass through is opened on one side of the bracket 100. Several pairs of elastic limiting components 300 for limiting the wire rope are installed at the slot 200. A tightening column 400 is rotatably arranged inside the bracket 100. A fixing hook 500 and a locking component 600 connected to the fixing hook 500 are arranged inside the tightening column 400. The locking component 600 clamps the wire rope between the fixing hook 500 and the tightening column 400. A control lever 700 is arranged on the bracket 100. A transmission component 800 is arranged between the control lever 700 and the tightening column 400. The control lever 700 drives the tightening column 400 to rotate through the transmission component 800 to tighten the wire rope.

[0027] In this embodiment, the locking assembly 600 includes a lead screw 601 rotatably disposed within the tightening column 400, a nut 602 threadedly connected to the lead screw 601, a connecting rod 603 matching the fixing hook 500 fixedly connected to the nut 602, and the end of the connecting rod 603 away from the nut 602 fixedly connected to the fixing hook 500.

[0028] Specifically, the drive screw 601 rotates, and the nut 602 moves axially under the action of the screw thread, which drives the connecting rod 603 to push the fixed hook 500 to contract towards the tightening column 400, forming a clamping force on the wire rope, clamping the wire rope, and fixing the wire rope so as to facilitate the subsequent tightening of the wire rope.

[0029] In this embodiment, the number of fixing hooks 500 is set to a minimum of two. One end of the fixing hook 500 extends into the tightening post 400. A vertical groove 501 is provided on the part of the fixing hook 500 located outside the tightening post 400. A friction protrusion 502 is formed on the fixing hook 500 between two adjacent vertical grooves 501.

[0030] Specifically, at least two fixing hooks 500 retract synchronously, covering the wire rope from different directions to increase the contact area. The vertical groove 501 on the outside of the fixing hook 500 forms a friction protrusion 502. When clamped, the protrusion is embedded in the surface of the wire rope to increase friction, significantly improve clamping reliability, and make the fixing of the wire rope more secure.

[0031] In this embodiment, the two transmission components 800 include symmetrically arranged support plates 801 fixedly connected to the inner side of the bracket 100. A worm gear 802 is rotatably arranged between the two support plates 801. A first bevel gear 803 is fixedly connected to one end of the control lever 700. A second bevel gear 804 that meshes with the first bevel gear 803 is fixedly sleeved on the worm gear 802. A connecting shaft 805 is rotatably arranged on the inner side of the bracket 100. A rotating gear 806 and a worm wheel 807 are fixedly sleeved on the connecting shaft 805. A gear ring 808 that meshes with the rotating gear 806 is fixedly sleeved on the tightening column 400. The worm wheel 807 meshes with the worm gear 802. The meshing and lubrication between the various parts are existing publicly available technologies and will not be described in detail here.

[0032] Specifically, the control lever 700 drives the first bevel gear 803 to rotate, which in turn drives the second bevel gear 804 and the worm gear 802 to rotate. After the worm gear 802 meshes with the worm wheel 807, the connecting shaft 805 rotates. The rotating teeth 806 on the connecting shaft 805 drive the gear ring 808, which in turn drives the tightening column 400 to rotate. The tightening column 400 allows the wire rope to be wound around it, thus tightening the wire rope. Furthermore, the worm wheel 807 and the worm gear 802 have a large transmission ratio, which converts the small rotation of the control lever 700 into a high torque output of the tightening column 400, achieving labor-saving operation. The reverse self-locking characteristics of the worm wheel 807 and the worm gear 802 prevent the wire rope from loosening in the reverse direction during the tightening process.

[0033] In this embodiment, the elastic limiting component 300 includes a limiting plate 301 and a limiting rod 302. The limiting plate 301 is fixedly connected to the slot 200, and the limiting rod 302 is hinged to the slot 200 via a pivot pin. A spring sheet 303 is installed between the limiting plate 301 and the limiting rod 302. The limiting rod 302 is an L-shaped component. In its natural state, one side of the limiting rod 302 contacts the limiting plate 301 and closes the slot 200. When the limiting rod 302 is subjected to force and rotates, it compresses the spring sheet 303, causing the slot 200 to open. The spring sheet 303 can be replaced by other elastic structures to achieve the conditions required in this application. This is existing technology and will not be described in detail here.

[0034] Specifically, in its natural state, the L-shaped limiting rod 302 is in contact with the limiting plate 301, closing the slot 200. When the wire rope is threaded through, external force compresses the limiting rod 302 to rotate around the pivot pin, causing the spring plate 303 to deform under pressure, opening the slot 200. After the wire rope passes through the slot 200, the spring plate 303 returns to its original position, and the limiting rod 302 closes again, preventing the wire rope from accidentally coming out. The device and wire rope do not need to be assembled before the wire rope is laid out, making it suitable for wire ropes that have already been installed. It does not require the wire rope to be removed, making it convenient to use.

[0035] In this embodiment, a through groove 101 is provided on one side of the bracket 100, and the position and diameter of the through groove 101 match the tightening column 400.

[0036] Specifically, the diameter of the through groove 101 is the same as the outer diameter of the tightening column 400, and their axes are the same, so as to provide clearance space for the fixing hook 500.

[0037] How to use and how to work this device:

[0038] When the device is in use, firstly, the limiting rod 302 normally closes the slot 200 under the action of the spring plate 303. When the wire rope comes into contact with the limiting rod 302, the wire rope squeezes the limiting rod 302 to open the slot 200. After being inserted, it automatically resets. The wire rope enters the bracket 100 and the wire rope will not accidentally come out. It is compatible with the quick assembly of the pre-arranged wire rope.

[0039] Subsequently, the wire rope is placed inside the fixed hook 500. By rotating the screw 601, the nut 602 moves axially under the action of the screw thread 601, which drives the connecting rod 603 to push the fixed hook 500 to retract towards the tightening column 400, forming a clamp on the wire rope and thus fixing the wire rope.

[0040] Finally, after the wire rope is fixed, the first bevel gear 803 is driven to rotate by the control lever 700, which in turn drives the second bevel gear 804 and the worm gear 802 to rotate. After the worm gear 802 meshes with the worm wheel 807, the rotating teeth 806 on the connecting shaft 805 drive the gear ring 808, which in turn drives the tightening column 400 to rotate. The rotation of the tightening column 400 can cause the wire rope to be wound on the fixing hook 500, thereby tightening the wire rope.

[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A wire rope rapid tightening device, characterized in that: The device includes a bracket (100), one side of which has a slot (200) for a wire rope to pass through. Several elastic limiting components (300) for limiting the wire rope are installed at the slot (200). A tightening column (400) is rotatably arranged inside the bracket (100). A fixing hook (500) and a locking component (600) connected to the fixing hook (500) are provided inside the tightening column (400). The locking component (600) clamps the wire rope between the fixing hook (500) and the tightening column (400). A control lever (700) is provided on the bracket (100). A transmission component (800) is provided between the control lever (700) and the tightening column (400). The control lever (700) drives the tightening column (400) to rotate through the transmission component (800) to tighten the wire rope.

2. The wire rope quick tightening device according to claim 1, characterized in that: The locking assembly (600) includes a lead screw (601) rotatably disposed within a tightening post (400), a nut (602) threaded onto the lead screw (601), a connecting rod (603) matching a fixing hook (500) fixedly connected to the nut (602), and the end of the connecting rod (603) away from the nut (602) being fixedly connected to the fixing hook (500).

3. The wire rope quick tightening device according to claim 1, characterized in that: The number of fixing hooks (500) is set to a minimum of two. One end of the fixing hook (500) extends into the tightening post (400). A vertical groove (501) is provided on the part of the fixing hook (500) located outside the tightening post (400). A friction protrusion (502) is formed on the fixing hook (500) between two adjacent vertical grooves (501).

4. The wire rope quick tightening device according to claim 1, characterized in that: The two transmission components (800) include symmetrical support plates (801) fixedly connected to the inner side of the bracket (100), a worm gear (802) rotatably disposed between the two support plates (801), a first bevel gear (803) fixedly connected to one end of the control lever (700), a second bevel gear (804) meshing with the first bevel gear (803) fixedly sleeved on the worm gear (802), a connecting shaft (805) rotatably disposed on the inner side of the bracket (100), a rotating gear (806) and a worm wheel (807) fixedly sleeved on the connecting shaft (805), a gear ring (808) meshing with the rotating gear (806) fixedly sleeved on the tightening column (400), and the worm wheel (807) meshing with the worm gear (802).

5. The wire rope quick tightening device according to claim 1, characterized in that: The elastic limiting component (300) includes a limiting plate (301) and a limiting rod (302). The limiting plate (301) is fixedly connected in the slot (200), and the limiting rod (302) is hinged in the slot (200) by a shaft pin. A spring sheet (303) is installed between the limiting plate (301) and the limiting rod (302).

6. The wire rope quick tightening device according to claim 5, characterized in that: The limiting rod (302) is an L-shaped component. In its natural state, one side of the limiting rod (302) contacts the limiting plate (301) and closes the slot (200). When the limiting rod (302) is subjected to force and rotates, it squeezes the spring plate (303) to open the slot (200).

7. The wire rope quick tightening device according to claim 1, characterized in that: A through groove (101) is provided on one side of the bracket (100), and the position and diameter of the through groove (101) match the tightening column (400).

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