Rope pressing device

Abstract

The utility model discloses a rope pressing device which comprises a roller with a vacant inner cavity, the roller comprises a roller body and roller ends arranged on the two sides of the roller body, a supporting structure is arranged in the roller in a penetrating mode, the supporting structure comprises a rope pressing rolling shaft, and the rope pressing rolling shaft is in clearance fit with the inner wall of the roller. A bearing is arranged on the side, close to the end of the roller, of the rope pressing rolling shaft so that the roller can roll relative to the rope pressing rolling shaft. The end of the rope pressing rolling shaft and the inner wall of the roller are symmetrically provided with containing spaces of eccentric blocks so as to support the roller. By designing the roller of the rope pressing device and the supporting structure in the roller, the effect of stable rope unwinding and winding can be achieved by using a single roller, the stress of the roller cannot be influenced no matter how many ropes are wound, and the stress of the whole roller in the running process is consistent and kept in a uniform and stable state.

Description

Technical Field

[0001] This utility model relates to the field of winch technology, specifically to a rope presser. Background Technology

[0002] The main function of a rope tensioner is to prevent the wire rope from slipping out of the rope groove or becoming slack. It is usually installed next to a pulley or drum to ensure that the wire rope does not accidentally slip or become slack during operation, thereby ensuring the normal operation and safety of the equipment.

[0003] Existing rope pressers such as Figure 1 As shown, it includes two opposing left and right supports (1), and multiple rollers (2) are passed through the bearings (4) at the ends of the rope pressing rollers (3). Due to the use of multi-section roller design, the structure is simple. When the rope is released or retrieved, some of the multiple rollers are relatively stationary and some are rolling. In the later stage of rope release, the different rollers are subjected to different forces, which will make the whole equipment unstable, thereby affecting its service life and easily causing rope tangling.

[0004] A search revealed a winch wire rope clamping device disclosed in CN202420271620.8. This device is positioned above the winch and includes a roller. A roller sleeve is fitted around the outside of the roller, and a roller shaft is inserted at the center of the roller. Both ends of the roller shaft are positioned on the winch base via screws. This device adds a roller to an existing winch, with a rubber roller sleeve fitted around its outside. A spring is installed at the connection between the roller shaft and the screw, applying directional pressure to the roller shaft to ensure the winch is tightly wound and achieves the purpose of retrieval. Only one person is required to operate this device, saving time and manpower and reducing safety risks for operators.

[0005] The above structure does not solve the problem of uniform force on the roller when the rope is being pulled out or pulled back. Therefore, it is necessary to invent a rope presser that can increase the reliability and service life. This has great practical significance and economic value in actual production. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by designing a rope presser. By designing the roller and the internal support structure of the roller, a single roller can achieve stable rope output and retraction. No matter how much rope is wound, it will not affect the force on the roller, ensuring that the force on the roller remains uniform and stable throughout the entire operation process.

[0007] To achieve the above objectives, the specific technical solution of this utility model is as follows:

[0008] A rope pressing device is provided, including a roller with an empty inner cavity. The roller includes a cylinder body and cylinder ends disposed on both sides of the cylinder body. A support structure is disposed through the inside of the roller. The support structure includes a rope pressing roller, which is clearance-fitted with the inner wall of the roller. A bearing is disposed on the side of the rope pressing roller near the cylinder end to allow the roller to roll relative to the rope pressing roller. An eccentric block receiving space is symmetrically disposed at the end of the rope pressing roller and the inner wall of the roller to support the roller.

[0009] The rope presser of this utility model reduces the number of rollers to one and sets up a support structure inside the roller. In order to ensure balanced force, eccentric blocks are set at both ends of the roller to support the roller stably, thus ensuring the safety and service life of the entire rope presser.

[0010] Furthermore, from the end of the drum inwards, the inner wall of the drum has a variable diameter structure, and the rope pressing roller contacts and engages with the drum. Segmenting the inner wall of the drum into variable diameter sections provides effective accommodating space for the support structure, resulting in a compact structure and high degree of fit between components.

[0011] Furthermore, the end of the rope pressing roller is a variable diameter cylinder with its diameter increasing in segments from the outside to the inside and outside. One outer diameter of the cylinder is a bearing mounting position, and the length of the bearing mounting position is greater than the height of the inner ring of the bearing.

[0012] Furthermore, an eccentric block placement position is provided on the outer side of the bearing mounting position, and an eccentric block is sleeved on the eccentric block placement position. The cross-section of the eccentric block is L-shaped.

[0013] Furthermore, the eccentric block includes a connecting end fixed on the bracket and a fixed end installed at the eccentric block placement position, with a bearing retaining ring provided between the fixed end and the bearing. The structure of the eccentric block can effectively integrate the end of the rope pressing roller with the bracket, and when the roller rotates, the eccentric block can effectively support the roller, making the entire roller run smoothly.

[0014] Furthermore, the end of the pressure roller is provided with a locking device for fixing the eccentric block. The locking device can be a bolt and nut combination, which is readily available and simple to use.

[0015] Furthermore, the brackets are symmetrically arranged, and the support structure also includes a tie rod that is level with the center line of the drum. Both ends of the tie rod are fixed to the brackets arranged opposite to each other. The tie rod ensures the horizontal stability of the entire drum. If the rope feeding or retracting causes uneven force on the drum, the tie rod, passing through the inside of the drum and fixed to the support, ensures that the drum will not wobble or warp due to uneven force.

[0016] Furthermore, the first pull rod is positioned near the bottom of the roller, and a second pull rod is also positioned at the middle of the roller. The second pull rod passes through the bracket and is fixed outside the bracket. The centerline of the second pull rod is parallel to the centerline of the first pull rod, and both are parallel to the centerline of the roller.

[0017] Furthermore, a support is provided at the bottom of the bracket, and the support is fixed to the bracket by washers and pins.

[0018] Furthermore, the inner side of the support is provided with reinforcing ribs to ensure the stability of the support.

[0019] Compared with the prior art, the auxiliary device for shot blasting the inner hole of the gear shaft threaded hole of this utility model has the following advantages:

[0020] The rope presser of this utility model reduces the number of rollers to one and sets up a support structure inside the roller. In order to ensure balanced force, eccentric blocks are set at both ends of the roller to support the roller stably, thus ensuring the safety and service life of the entire rope presser.

[0021] The rope presser of this utility model adopts an integral roller structure, which can reduce the number of bearings. The structure is compact and sturdy. When the rope is being delivered or retracted, the roller is subjected to uniform force and is in a continuous rolling state, making more rational use of its bearings. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a rope presser in the prior art.

[0023] Figure 2 This is a schematic diagram of the rope presser described in this utility model.

[0024] Among them, 1-bracket, 2-roller, 3-pressure rope roller, 4-bearing, 5-washer, 6-pin, 7-nut, 8-hex bolt, 9-washer, 11-eccentric block, 12-round nut, 13-round nut washer, 14-bearing retaining ring, 18-pull rod two, 19-pull rod one, 21-washer, 23-support, 40-pin, 100-bearing mounting position, 101-connecting end, 102-fixed end, 200-eccentric block placement position. Detailed Implementation

[0025] The following describes the embodiments and appendices. Figure 2 The present invention will be further described below. Example 1

[0026] like Figure 2As shown, the rope pressing device in this embodiment includes a roller 2 with an empty inner cavity. The roller 2 includes a main body and end portions disposed on both sides of the main body. A support structure is provided through the interior of the roller 2, including a rope pressing roller 3. The rope pressing roller 3 is clearance-fitted with the inner wall of the roller 2. A bearing 4 is provided on the side of the rope pressing roller 3 near the end portion of the roller to allow the roller 2 to roll relative to the rope pressing roller 3. The end portion of the rope pressing roller 3 and the inner wall of the roller 2 are symmetrically provided with accommodating spaces for eccentric blocks 11 to support the roller 2. A locking device for fixing the eccentric blocks 11 is provided at the end portion of the rope pressing roller 3. In this embodiment, the locking device consists of a hexagonal bolt 8, a washer 9, and a gasket 21.

[0027] In this embodiment, there are two supports 1, symmetrically arranged at both ends of the roller 2. The support structure also includes a first pull rod 19 that is level with the center line of the roller 2. The two ends of the first pull rod 19 are fixed to the opposite supports 1. The first pull rod 19 is located near the bottom of the roller 2, and the two ends of the first pull rod 19 are locked with nuts 7. A second pull rod 18 is also provided at the middle position of the roller 2, which passes through the support 1 and is fixed to the outside of the support 1. A support 23 is provided at the bottom of the support 1, and the support 23 is fixed to the support 1 by washers 5 and pins 40. Preferably, the inner side of the support 1 is provided with reinforcing ribs to ensure the stability of the support 1.

[0028] In this embodiment of the rope presser, the number of rollers 2 is reduced to one, and a support structure is set inside the roller 2. In order to ensure balanced force, eccentric blocks 11 are set at both ends of the roller to support the roller stably, thus ensuring the safety and service life of the entire rope presser.

[0029] Specifically, from the end of the drum inwards, the inner wall of the drum 2 has a variable diameter structure, and the rope pressing roller 3 contacts and fits with the drum 2. Segmenting the inner wall of the drum 2 with a variable diameter provides effective accommodation space for the support structure, making the structure compact and with a high degree of fit between the structures.

[0030] The end of the rope-pressing roller 3 is a variable-diameter cylinder with its diameter increasing in segments from the outside to the inside. One outer diameter of the cylinder is the bearing mounting position 100, and the length of the bearing mounting position 100 is greater than the height of the inner ring of the bearing 4. Segmenting the inner wall of the roller with variable diameters provides effective accommodating space for the support structure, resulting in a compact structure and high fit between components. Furthermore, the various components will not interfere with each other during subsequent use, ensuring high reliability.

[0031] In this embodiment, an eccentric block placement position 200 is provided on the outer side of the bearing mounting position. An eccentric block 11 is sleeved on the eccentric block placement position 200, and the cross-section of the eccentric block 11 is L-shaped. The eccentric block 11 includes a connecting end 101 fixed on the bracket 1 and a fixing end 102 mounted on the eccentric block placement position 200. A bearing retaining ring 14 is provided between the fixing end 102 and the bearing 4. As mentioned above, the length of the bearing mounting position 100 is greater than the height of the inner ring of the bearing 4. The bearing retaining ring 14 is provided at the bearing mounting position 100. One end of the bearing retaining ring 14 abuts against the bearing 4, and the other end abuts against the fixing end 102 of the eccentric block 11. The structure of the eccentric block 200 can effectively combine the end of the pressure roller 3 with the bracket 1. When the roller 2 rotates, the eccentric block 200 can effectively support the roller, making the entire roller 2 run smoothly.

[0032] The rope presser of this utility model adopts an integral roller structure, which can reduce the number of bearings. The structure is compact and sturdy. When the rope is being delivered or retracted, the roller is subjected to uniform force and is in a continuous rolling state, making more rational use of its bearings.

[0033] The above are merely embodiments of this utility model, and the utility model is not limited to the field covered by this embodiment. Commonly known structures and characteristics in the solutions are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the scope of this utility model, and these should also be considered within the protection scope of this utility model. These modifications will not affect the effectiveness of the utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A rope presser, characterized in that, The roller (2) includes an empty inner cavity. The roller (2) includes a cylinder body and cylinder ends arranged on both sides of the cylinder body. A support structure is provided through the inside of the roller (2). The support structure includes a rope pressing roller (3). The rope pressing roller (3) is clearance-fitted with the inner wall of the roller (2). A bearing (4) is provided on the side of the rope pressing roller (3) near the cylinder end so that the roller (2) rolls relative to the rope pressing roller (3). The end of the rope pressing roller (3) is symmetrically provided with eccentric block (11) accommodating space with the inner wall of the roller (2) to support the roller (2).

2. The rope presser according to claim 1, characterized in that, From the end of the cylinder inward, the inner wall of the roller (2) has a variable diameter structure, and the rope pressing roller (3) is in contact with the roller (2).

3. The rope presser according to claim 2, characterized in that, The end of the rope pressing roller (3) is a variable diameter cylinder with the outer diameter increasing in sections from the inner diameter to the outer diameter. One outer diameter of the cylinder is a bearing mounting position (100), and the length of the bearing mounting position is greater than the inner ring height of the bearing (4).

4. The rope presser according to claim 3, characterized in that, An eccentric block placement position (200) is provided on the outside of the bearing mounting position, and an eccentric block (11) is provided on the outer sleeve of the eccentric block placement position (200). The cross-section of the eccentric block (11) is an L-shaped structure.

5. The rope presser according to claim 4, characterized in that, The eccentric block (11) includes a connecting end (101) fixed on the bracket (1) and a fixed end (102) installed on the eccentric block placement position (200). A bearing retainer (14) is provided between the fixed end (102) and the bearing (4).

6. The rope presser according to claim 5, characterized in that, The end of the pressure roller (3) is provided with a locking device for fixing the eccentric block (11).

7. The rope presser according to claim 6, characterized in that, The brackets (1) are symmetrically arranged, and the support structure also includes a pull rod (19) that is level with the center line of the roller (2). The two ends of the pull rod (19) are fixed on the brackets (1) that are respectively fixed on opposite sides.

8. The rope presser according to claim 7, characterized in that, The first pull rod (19) is located near the bottom of the roller (2), and the second pull rod (18) is also located in the middle of the roller (2). The second pull rod (18) passes through the bracket (1) and is fixed outside the bracket (1).

9. The rope presser according to claim 8, characterized in that, The bracket (1) is provided with a support (23) at the bottom, and the support (23) fixes the bracket (1) by means of a washer (5) and a pin (40).

10. The rope presser according to claim 9, characterized in that, The inner side of the bracket (1) is provided with reinforcing ribs to ensure the stability of the bracket (1).

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