A take-up device for crossing a closed wire line

Abstract

The utility model relates to a kind of tightening device of spanning net-enclosing working rope, including drive mechanism, drive mechanism is connected tension wheel by padlock, the drive mechanism includes first mounting plate and second mounting plate, the first mounting plate and second mounting plate are connected by pull ring, driving motor is installed at the second mounting plate, the driving motor is in turn penetrated second mounting plate and first mounting plate;When spanning net-enclosing working rope is slackened and causes sag to be larger, it can be observed by padlock, then padlock is tightened, it can drive tension wheel movement synchronously, and spanning net-enclosing working rope is also immediately realized tightening, not only make adjustment process more convenient, simultaneously reduce the dangerousness of manual high-altitude operation.

Description

Technical Field

[0001] This utility model relates to the field of power transmission line construction technology, specifically to a tightening device for a working rope crossing a safety net. Background Technology

[0002] When performing high-altitude work (such as erecting power lines or replacing insulators) that requires crossing areas where traffic cannot be interrupted, a large temporary safety net is erected above the work area and below the work site to prevent tools, parts, broken wires, and other objects from falling and posing a danger to the area below. This net acts like a "catch bag" to catch anything that falls.

[0003] The working rope for crossing the safety net is a high-strength main rope used for load-bearing and tensioning the safety net during the operation of crossing the safety net. During the construction period, long-term traction will cause a certain creep, which will increase the sag of the installation and make it impossible to meet the minimum safety distance, which can easily cause safety accidents.

[0004] Currently, both domestically and internationally, the sag adjustment of working ropes crossing the safety net is mostly achieved using hand lever hoists or hydraulic winches. Hand lever hoists have low tightening efficiency, high labor intensity, and high labor costs; hydraulic winches are bulky, require heavy labor for on-site handling, and operate at high speeds, making them difficult to control and posing significant safety hazards.

[0005] Therefore, a device is needed to easily adjust the sag of the working rope crossing the sealing net, thereby reducing labor costs and improving safety. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a tightening device for a working rope that crosses a sealing net to solve the aforementioned problems.

[0007] This utility model provides the following technical solution: A tightening device for a working rope spanning a sealing net includes a drive mechanism connected to a tension wheel via a chain. The drive mechanism includes a first mounting plate and a second mounting plate connected by a pull ring. A drive motor is mounted on the second mounting plate, passing through both the second and first mounting plates sequentially. The output end of the drive motor drives a gear set mounted on the first mounting plate. A chain drive ring is fixed to the inner ring of the main drive gear of the gear set. The chain drive ring is located between the first and second mounting plates and is used to drive the chain surrounding the outer surface. Several sprockets and a chain limit seat are also installed between the first mounting plate and the second mounting plate. The chain limit seat is used to limit the vertical ring.

[0008] Furthermore, the chain wheel includes two rollers and a central shaft. The central shaft is used to pass through and fix the two rollers. The central shaft is hinged by a bearing embedded in the inner wall of the first mounting plate. The distance between the two rollers is adapted to the vertical ring.

[0009] Furthermore, the outer surface of the chain drive ring is provided with a ring groove for the chain to be inserted, and the ring groove is composed of a horizontal ring groove and a vertical ring groove connected in sequence, respectively adapting to the horizontal ring and the vertical ring.

[0010] Furthermore, the chain limiting seat includes a limiting seat body, and both the upper and lower ends of the limiting seat body are provided with vertical grooves adapted to the vertical ring, and the vertical grooves and the horizontal ring grooves are located on the same straight line. A guide plate is fixed on one side of the limit seat body near the chain drive ring. The guide plate has an annular groove on the side near the chain drive ring. The upper and lower ends of the guide plate are on the same horizontal line as the slotted surfaces of the two vertical grooves. The top and bottom corners of the guide plate are both curved surfaces.

[0011] This utility model has the following beneficial technical effects: This invention allows for the tightening of the working rope crossing the sealing net without the need for a hand winch or hydraulic winch. Furthermore, because the chain is suspended from the tension wheel, when the working rope becomes too slack and its sag increases, it can be observed through the chain. Tightening the chain then simultaneously drives the tension wheel, thus tightening the working rope. This not only makes the adjustment process more convenient but also reduces the dangers of manual high-altitude operations. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the present invention viewed from the front.

[0013] Figure 2 This is a schematic diagram of the present invention from a side view.

[0014] Figure 3 This is a schematic diagram showing the distribution of the chain drive ring, chain wheel, and chain limit seat in this utility model.

[0015] Figure 4 This is a schematic diagram of the chain limiting seat in this utility model.

[0016] Figure 5 This is a schematic diagram of the gear assembly in this utility model.

[0017] Figure 6 This is a schematic diagram showing the positions of the chain and chain limit seat in use in this utility model.

[0018] In the diagram: 1. First mounting plate; 2. Second mounting plate; 3. Pull ring; 4. Drive motor; 5. Chain; 6. Tension wheel; 7. Gear set; 8. Chain limit seat; 81. Limit seat body; 82. Guide plate; 83. End corner; 84. Vertical groove; 9. Chain drive ring; 10. Ring groove; 11. Chain wheel. Detailed Implementation

[0019] 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.

[0020] Example like Figures 1 to 3 As shown, this embodiment provides a tightening device for the working rope crossing the sealing net, including a drive mechanism. The drive mechanism is connected to the tension wheel 6 through a chain 5. The tension wheel 6, which is suspended by a hook, is tightened or loosened by the chain 5 being wound up by the drive mechanism. This achieves the tightening of the working rope crossing the sealing net wound at the tension wheel 6 without the need to wind up the tension wheel 6, thus avoiding the danger of manual high-altitude operations. Specifically, the drive mechanism includes a first mounting plate 1 and a second mounting plate 2, which are connected by a pull ring 3 (the pull ring 3 is fixed to both by bolts on both sides; the pull ring 3 is used for high-altitude suspension during wiring). A drive motor 4 is installed on the second mounting plate 2. It should be noted that a reducer is installed at the output end of the drive motor 4, and its control method can be remotely controlled from the ground via wire control, Bluetooth, or a wireless controller (this is already widely used in existing technologies, such as linear sliders and electric hoist trolleys). The drive motor 4 passes through the second mounting plate 2 and the first mounting plate 1 sequentially, and its output end drives the gear set 7 installed on the first mounting plate 1. The gear set 7 is the same as a traditional linkage gear set, which sequentially drives several gears meshing with the main gear driven by the motor until it is synchronized with the linkage gear at the drive shaft, realizing the rotation of the structure connected to it. In this technical solution, a cam for limiting is also added, such as... Figure 5 As shown, located at the upper left corner of gear set 7, it is hinged by a spring pin. Its function is to limit the rotation of gear set 7 by engaging with the teeth when gear set 7 reverses. At the same time, the side wall of the first mounting plate 1 uses a bolt to abut and limit the cam, ensuring its stability. This structure is used in fall arresters (descenders) used in mountaineering and rappelling, and will not be described in detail here.

[0021] The inner ring of the main drive gear of the gear set 7 is fixed with a chain drive ring 9. The chain drive ring 9 is located between the first mounting plate 1 and the second mounting plate 2 and is used to drive the chain 5 that surrounds the outer surface. The chain 5 is divided into vertical rings and horizontal rings that mesh in sequence. Several chain wheels 11 and a chain limit seat 8 are also installed between the first mounting plate 1 and the second mounting plate 2. The chain limit seat 8 is used to limit the vertical ring (see working state for reference). Figure 6 The chain wheel 11 includes two rollers and a central shaft. The central shaft is used to pass through and fix the two rollers. The central shaft is hinged by a bearing embedded in the inner wall of the first mounting plate 1. The distance between the two rollers is adapted to the vertical ring. In this embodiment, three chain wheels 11 are used, which are located at the upper and lower ends of the chain drive ring 9 and the lower end of the chain limiting seat 8, respectively. Since the suspension end of the chain 5 is at the bottom, its downward direction is also at the bottom. Therefore, two chain wheels 11 are set at the bottom to ensure that they can stably engage with the ring groove 10 during winding.

[0022] The outer surface of the chain drive ring 9 is provided with a ring groove 10 for the chain 5 to be inserted into, and the ring groove 10 is composed of a horizontal ring groove and a vertical ring groove connected in sequence, which are adapted to the horizontal ring and the vertical ring respectively. like Figure 4 As shown, the chain limiting seat 8 includes a limiting seat body 81. The upper and lower ends of the limiting seat body 81 are provided with vertical grooves 84 that are adapted to the vertical rings (the horizontal rings can directly contact the upper and lower surfaces of the limiting seat body 81). The vertical grooves 84 and the horizontal ring grooves are located on the same straight line. A guide plate 82 is fixed on one side of the limiting seat body 81 near the chain drive ring 9. The guide plate 82 is provided with an annular groove on the side near the chain drive ring 9. The upper and lower ends of the guide plate 82 are respectively on the same horizontal line as the slotted surfaces of the two vertical grooves 84. The end corners 83 of the upper and lower ends of the guide plate 82 are both arc surfaces to prevent jamming.

[0023] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A tightening device for a working rope spanning a sealing net, comprising a drive mechanism connected to a tension wheel (6) via a chain (5), characterized in that, The driving mechanism includes a first mounting plate (1) and a second mounting plate (2). The first mounting plate (1) and the second mounting plate (2) are connected by a pull ring (3). A drive motor (4) is installed on the second mounting plate (2). The drive motor (4) passes through the second mounting plate (2) and the first mounting plate (1) in sequence, and its output end drives the gear set (7) installed on the first mounting plate (1). The inner ring of the main transmission gear of the gear set (7) is fixed with a chain drive ring (9). The chain drive ring (9) is located between the first mounting plate (1) and the second mounting plate (2) and is used to drive the chain (5) surrounding the outer surface. Several chain wheels (11) and a chain limit seat (8) are also installed between the first mounting plate (1) and the second mounting plate (2). The chain limit seat (8) is used to limit the vertical ring.

2. The tightening device for a working rope crossing a sealing net according to claim 1, characterized in that, The chain wheel (11) includes two rollers and a central shaft. The central shaft is used to pass through and fix the two rollers. The central shaft is hinged by a bearing embedded in the inner wall of the first mounting plate (1). The distance between the two rollers is adapted to the vertical ring.

3. The tightening device for a working rope crossing a sealing net according to claim 1, characterized in that, The outer surface of the chain drive ring (9) is provided with a ring groove (10) for the chain (5) to be inserted into, and the ring groove (10) is composed of a horizontal ring groove and a vertical ring groove connected in sequence, respectively adapting to the horizontal ring and the vertical ring.

4. The tightening device for a working rope crossing a sealing net according to claim 3, characterized in that, The chain limiting seat (8) includes a limiting seat body (81), and the upper and lower ends of the limiting seat body (81) are provided with vertical grooves (84) that are adapted to the vertical ring, and the vertical grooves (84) and the horizontal ring grooves are located on the same straight line.

5. A tightening device for a working rope crossing a sealing net, as described in claim 4, characterized in that, A guide plate (82) is fixed on one side of the limiting seat body (81) near the chain drive ring (9). The guide plate (82) has an annular groove on one side near the chain drive ring (9). The upper and lower ends of the guide plate (82) are on the same horizontal line as the slotted surfaces of the two vertical grooves (84).

6. The tightening device for a working rope crossing a sealing net according to claim 5, characterized in that, The top and bottom corners (83) of the guide plate (82) are both curved surfaces.

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