Rope tightening device with self-tightening function
By designing a rope tightening device with self-tightening function, using the structure of locking gears and locking racks, the problem of wear of traditional rope tightening components is solved, and reliable tension adjustment of ropes and long-life use of equipment is achieved.
Patent Information
- Application Number
- CN202422351241.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-09-26
AI Technical Summary
After frequent use of traditional ratchet rope tighteners, components such as ratchets and pawls are prone to wear, resulting in a faster wear rate of key components, affecting working performance and service life.
A rope tightening device with self-tightening function is designed, adopting a locking gear and locking rack structure. The hand-wheel drives the tightening wheel to rotate, change the number of turns of the rope to adjust the tension degree of the rope, and the meshing connection between the locking rack and the locking gear is avoided and repeated friction is extended.
It realizes a simple and reliable self-tightening function for the rope, avoiding the wear of the locking rack and locking gear after frequent use, and extending the working performance and service life of the equipment.
Smart Images
Figure CN222989647U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of oil well exploitation equipment, in particular to a wire rope tightener with a self-tightening function. Background Art
[0002] During the process of oil well exploitation, a wire rope tightener may be used in the operation of pulling up and lowering sucker rods or tubing; when it is necessary to replace or repair the sucker rods or tubing, they need to be lifted or lowered; during this process, in order to ensure the fastening degree of the rope or cable and guarantee the safe and smooth progress of the operation, a wire rope tightener may be used; when pulling up the tubing, first use a lifting clamp to hold the tubing, and then pull the rope through a winch to lift the tubing; in order to prevent the tubing from falling off due to the loosening of the rope, a wire rope tightener is used to fasten the fixed part of the rope; similarly, when lowering the tubing, it is also necessary to use a wire rope tightener to adjust the tension of the rope so that the tubing can be lowered smoothly and safely.
[0003] Traditional wire rope tighteners are generally ratchet-type wire rope tighteners, which have defects in use: for example, components such as ratchets and pawls are prone to wear after frequent use, and the wear rate of their key components will accelerate, affecting their working performance and service life. Content of the Utility Model
[0004] The purpose of the utility model is to provide a wire rope tightener with a self-tightening function to solve the defects that components such as ratchets and pawls are prone to wear after frequent use, and the wear rate of their key components will accelerate, affecting their working performance and service life mentioned in the above background art.
[0005] To achieve the above purpose, a wire rope tightener with a self-tightening function is provided, which includes a wire rope tightener body. An installation frame is fixedly installed on the outside of the wire rope tightener body by screwing. A wire rope wheel is movably installed inside the wire rope tightener body. At the same time, a rope is inserted through the wire rope wheel. One end of the rotating shaft of the wire rope wheel passes through the side wall of the installation frame and is fixedly connected to a hand wheel. The other end of the rotating shaft of the wire rope wheel passes through the side wall of the wire rope tightener body and is fixedly connected to a locking gear. A locking rack is installed on one side of the locking gear. At the same time, a fixed seat is fixedly arranged on the outside of the locking rack. A guide rod is fixedly installed on the side of the fixed seat away from the locking rack. A limiting seat is fixedly installed on the outer side wall of the wire rope tightener body.
[0006] Preferably, the axial cross-sections of the wire rope wheel, the locking gear and the hand wheel are concentric circle structures, and multiple groups of force-bearing blocks are evenly arranged on the outer surface of the locking gear.
[0007] Preferably, both the wire rope tightener body and the installation frame are made of metal and are in a "U" shape. Through holes are opened on both side walls of the wire rope tightener body. At the same time, the through holes are arranged opposite to the rope holes, and the through holes and the rope holes have the same diameter.
[0008] Preferably, the locking gear and the locking rack are adapted in size, and the locking gear and the locking rack are meshed and connected. At the same time, two groups of limiting rods are fixedly arranged on the surface of the fixing seat fixedly connected to the locking rack, and the limiting rods are arranged in parallel with the guiding rods.
[0009] Preferably, the limiting rods are inserted into the limiting holes formed in the limiting seats, and the guiding rods are inserted into the limiting holes formed in the limiting seats. At the same time, a pull rod is fixedly welded to the end of the guiding rod.
[0010] Preferably, the guiding rod and the pull rod are combined into a "T" shape, and a spring is installed on the outer side of the guiding rod. At the same time, the spring is arranged between the fixing seat and the limiting seat.
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] 1. When the locking gear and the locking rack are disengaged, the handwheel is rotated at this time. The handwheel drives the rope tightening wheel to rotate through the rotating shaft. When the rope tightening wheel rotates, the rope can be wound around the outer side of the rope tightening wheel. By changing the number of turns of the rope wound on the rope tightening wheel, the tension degree of the rope during work can be selected; the operation is simple and reliable and is easy to implement;
[0013] 2. In the utility model, the locking rack and the fixing seat move to the right, so that the locking rack is clamped on the outer side of the locking gear, completing the locking work of the rope tightening wheel, replacing the traditional locking method using a ratchet and a pawl. When the rope is tensioned and adjusted, the locking rack and the locking gear will not rub against each other repeatedly, avoiding wear of the locking rack and the locking gear after frequent use, and ensuring the working performance and service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a front view schematic diagram of the structure of the utility model;
[0015] Figure 2 is a top view of the structure of the utility model;
[0016] Figure 3 is a bottom view of the structure of the utility model;
[0017] Figure 4 is a side view of the structure of the utility model;
[0018] Figure 5 is a sectional view of the structure of the utility model.
[0019] Reference numerals in the figure: 1, tightener body; 2, mounting frame; 3, tightening wheel; 4, rope hole; 5, locking gear; 6, locking rack; 7, fixed seat; 8, spring; 9, limiting rod; 10, limiting seat; 11, guide rod; 12, pull rod; 13, perforation; 14, rope; 15, handwheel. Detailed implementation
[0020] Please refer to Figures 1-5 , the present utility model provides a tightener with a self-tightening function, including a tightener body 1, an outer side of the tightener body 1 is screwed and fixedly installed with a mounting frame 2, and a tightening wheel 3 is movably installed inside the tightener body 1. At the same time, a rope 14 is inserted through the inside of the tightening wheel 3, and one end of the rotating shaft of the tightening wheel 3 passes through the side wall of the mounting frame 2 and is fixedly connected to a handwheel 15. The other end of the rotating shaft of the tightening wheel 3 passes through the side wall of the tightener body 1 and is fixedly connected to a locking gear 5. And a locking rack 6 is installed on one side of the locking gear 5. At the same time, a fixed seat 7 is fixedly arranged on the outer side of the locking rack 6, and a guide rod 11 is fixedly installed on a side of the fixed seat 7 away from the locking rack 6. A limiting seat 10 is fixedly installed on the outer side wall of the tightener body 1.
[0021] As can be seen from the above, during use, the operator first holds the tightener body 1 and the mounting frame 2. After docking the tightener body 1 and the mounting frame 2 together, they are fixedly connected by four groups of bolts. At this time, before the rope 14 is used, first pass the end of the rope 14 through the perforation 13 and the rope hole 4 in sequence, and pass through the perforation 13 on the other end of the tightener body 1; when the installation of the rope 14 is completed and the rope 14 needs to be tightened, at this time, pull the pull rod 12, so that under the action of the guide rod 11, the locking rack 6 and the fixed seat 7 move from right to left, so that the fixed seat 7 can compress the spring 8 sleeved on the guide rod 11. When the locking gear 5 and the locking rack 6 are disengaged, at this time, rotate the handwheel 15, and the handwheel 15 drives the tightening wheel 3 to rotate through the rotating shaft. When the tightening wheel 3 rotates, the rope 14 can be wound around the outer side of the tightening wheel 3. By changing the number of turns of the rope 14 wound on the tightening wheel 3, the tension degree of the rope 14 during work can be selected to realize the self-tightening function of the rope 14; the operation is simple and reliable, and is easy to implement.
[0022] As a preferred implementation, the axial cross-sections of the tightening wheel 3, the locking gear 5 and the handwheel 15 are concentric circle structures, and a plurality of stress blocks are uniformly arranged on the outer surface of the locking gear 5.
[0023] As a preferred implementation, both the tightener body 1 and the mounting frame 2 are made of metal and are in a "U" shape structure. At the same time, perforations 13 are opened on both side walls of the tightener body 1, and the perforations 13 are arranged opposite to the rope holes 4, and the diameters of the perforations 13 and the rope holes 4 are the same.
[0024] As can be seen from the above, during use, when the operator finishes controlling the tension of the rope 14, the pull rod 12 is released. At this time, under the reset and rebound of the spring 8, the locking rack 6 and the fixed seat 7 move to the right, so that the locking rack 6 is clamped outside the locking gear 5, completing the locking of the tightrope wheel 3. This replaces the traditional locking method using a ratchet and a pawl. When adjusting the tension of the rope 14, the locking rack 6 and the locking gear 5 will not rub against each other repeatedly, avoiding wear of the locking rack 6 and the locking gear 5 after frequent use, and ensuring the working performance and service life of the device.
[0025] As a preferred embodiment, the sizes of the locking gear 5 and the locking rack 6 are adapted to each other, and the locking gear 5 and the locking rack 6 are meshed and connected. At the same time, two sets of limiting rods 9 are fixedly arranged on the surface of the fixed seat 7 fixedly connected to the locking rack 6, and the limiting rods 9 are arranged in parallel with the guide rod 11.
[0026] As a preferred embodiment, the limiting rods 9 are inserted into the limiting holes opened on the limiting seat 10, and the guide rod 11 is inserted into the limiting holes opened on the limiting seat 10. At the same time, the end of the guide rod 11 is welded and fixed to the pull rod 12.
[0027] As a preferred embodiment, the guide rod 11 and the pull rod 12 are combined to form a "T" shape, and a spring 8 is installed outside the guide rod 11. At the same time, the spring 8 is arranged between the fixed seat 7 and the limiting seat 10.
[0028] Working principle: First, the operator holds the tightener body 1 and the mounting frame 2. After docking the tightener body 1 and the mounting frame 2 together and fixing them with four groups of bolts, before using the rope 14, first pass the end of the rope 14 through the perforation 13 and the rope hole 4 in sequence, and then pass it through the perforation 13 at the other end of the tightener body 1; when the installation of the rope 14 is completed and the rope 14 needs to be tightened, pull the pull rod 12 at this time. Under the action of the guide rod 11, the locking rack 6 and the fixed seat 7 move from right to left, so that the fixed seat 7 can compress the spring 8 sleeved on the guide rod 11. When the locking gear 5 and the locking rack 6 are disengaged, rotate the handwheel 15 at this time. The handwheel 15 drives the tightening wheel 3 to rotate through the rotating shaft. When the tightening wheel 3 rotates, the rope 14 can be wound around the outside of the tightening wheel 3. By changing the number of turns of the rope 14 wound on the tightening wheel 3, the tension degree of the rope 14 during work can be selected; when the tension degree of the rope 14 is controlled, release the pull rod 12. At this time, under the reset and rebound of the spring 8, the locking rack 6 and the fixed seat 7 move to the right, so that the locking rack 6 is clamped outside the locking gear 5, completing the locking work of the tightening wheel 3. This replaces the traditional locking method using a ratchet and a pawl. When adjusting the tension of the rope 14, the locking rack 6 and the locking gear 5 will not rub against each other repeatedly, avoiding wear of the locking rack 6 and the locking gear 5 after frequent use, and ensuring the working performance and service life of the device.
[0029] The embodiments of the present utility model are given for the purpose of illustration and description. Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.
Claims
1. A rope tightener with a self-tightening function, comprising a rope tightener body (1), characterized in that: The outer side of the rope tightener body (1) is screwed to a fixed mounting frame (2), and a rope tightening wheel (3) is movably mounted inside the rope tightener body (1), and a rope (14) is inserted into the rope tightening wheel (3), and one end of the rotating shaft of the rope tightening wheel (3) passes through the side wall of the mounting frame (2) to be fixedly connected to a hand wheel (15), and the other end of the rotating shaft of the rope tightening wheel (3) passes through the side wall of the rope tightener body (1) to be fixedly connected to a locking gear (5), and a locking rack (6) is mounted on one side of the locking gear (5), and a fixing seat (7) is fixedly arranged on the outer side of the locking rack (6), and a guide rod (11) is fixedly mounted on a side of the fixing seat (7) away from the locking rack (6), and a limit seat (10) is fixedly mounted on the outer side wall of the rope tightener body (1).
2. The rope tightener with self-tightening function according to claim 1, characterized in that: The axial sections of the tightening rope wheel (3), the locking gear (5) and the hand wheel (15) are concentric circle structures, and a plurality of groups of force blocks are evenly arranged on the outer surface of the locking gear (5).
3. The rope tightener with self-tightening function according to claim 1, characterized in that: The rope tightener body (1) and the mounting frame (2) are both "U"-shaped structures made of metal material, and through holes (13) are provided on both side walls of the rope tightener body (1). The through holes (13) and the rope holes (4) are arranged opposite to each other, and the diameters of the through holes (13) and the rope holes (4) are consistent.
4. The rope tightener with self-tightening function according to claim 1, characterized in that: The sizes of the locking gear (5) and the locking rack (6) are matched, and the locking gear (5) and the locking rack (6) are meshed and connected. At the same time, two groups of limit rods (9) are fixedly arranged on the surface of a fixing seat (7) fixedly connected to the locking rack (6), and the limit rods (9) are arranged parallel to the guide rod (11).
5. The rope tightener with self-tightening function according to claim 4, characterized in that: The limiting rod (9) is inserted into a limiting hole provided on the limiting seat (10), and the guide rod (11) is inserted into a limiting hole provided on the limiting seat (10), and a fixing pull rod (12) is welded to the end of the guide rod (11).
6. The rope tightener with self-tightening function according to claim 5, characterized in that: The guide rod (11) and the pull rod (12) are combined together to form a "T"-shaped arrangement, and a spring (8) is installed on the outer side of the guide rod (11), and the spring (8) is arranged between the fixing seat (7) and the limiting seat (10).