Adjustable crane steel wire rope pressing device

Abstract

The utility model relates to an adjustable crane steel wire rope pressing device, which is characterized in that a spring forms an elastic pre-tightening force through the cooperation of a sliding chute and a transverse shaft and the synergistic effect of an adjusting screw pushing structure, a first adjusting nut (the rear end is locked and limited) and a second adjusting nut (the front side is pre-tightened by a spring), and the elastic pre-tightening force can be adjusted; therefore, the steel wire rope is pressed tightly through the rope pressing wheel, and the problem that the steel wire rope jumps due to uneven stress and derails in the working process of the steel wire rope is solved. In addition, the manufacturing cost is reduced through application of standardized screws, nuts and spring assemblies, local replacement and maintenance are facilitated through modular design, and the downtime is shortened.

Description

Technical Field

[0001] This utility model relates to the technical field of rope pressing devices, and in particular to an adjustable crane wire rope pressing device. Background Technology

[0002] Cranes typically require multiple layers of wire rope on their drums. In a single-drum system, one end of the wire rope is fixed to the drum, while the other end is wound around the drum along the rope groove. The other end of the wire rope is used to connect to the object being lifted. A double-drum system includes two wire ropes, each with one end fixed and the other end used to connect to the object being lifted. During crane operation, the movement of the lifted object causes the wire rope to sway. This swaying can cause the wire rope on the drum to deviate from the rope groove, leading to rope skipping, tangling, and other problems. This, in turn, accelerates the wear of the wire rope, posing safety hazards such as rope breakage and unstable movement of the lifted object. Therefore, a rope-pressing device is needed to stabilize the wire rope.

[0003] However, existing rope pressing devices cannot adjust the elasticity between the rope pressing wheel and the pressed wire rope, resulting in a limited range of applications. To address this, we propose an adjustable crane wire rope pressing device to solve the aforementioned problems. Utility Model Content

[0004] The present invention aims to at least partially solve one of the problems existing in the existing related technologies. To this end, the present invention proposes an adjustable crane wire rope pressing device.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An adjustable crane wire rope pressing device includes brackets spaced apart on the left and right. Each bracket has a sliding groove extending in a front-to-back direction. A horizontal shaft, capable of sliding back and forth along the grooves, is connected between the two grooves. A pressing wheel is mounted on the horizontal shaft. A support baffle is mounted on the brackets and located behind the grooves. Adjusting screws are threaded through the support baffle, with the front end of each screw abutting against the horizontal shaft and the rear end threadedly connected to a first adjusting nut. A second adjusting nut is also threadedly connected to the adjusting screw and located in front of the support baffle. A spring is connected between the second adjusting nut and the support baffle.

[0007] In some embodiments, a positioning hole is provided on one side of both ends of the horizontal axis, and the front end of the adjusting screw can be inserted into the positioning hole.

[0008] In some embodiments, the positioning holes are provided in a plurality of spaced intervals along the transverse axis.

[0009] In some embodiments, a third adjusting nut is threadedly connected to the adjusting screw. The third adjusting nut is located between the horizontal shaft and the second adjusting nut, and one end of the third adjusting nut can abut against the side wall of the horizontal shaft.

[0010] In some embodiments, a third fixing pin is movably inserted through the outer wall of the third adjusting nut, and a third through hole is provided on one side of the adjusting screw. After the third adjusting nut is threadedly connected to the adjusting screw, the third fixing pin passes through the third adjusting nut and is inserted into the third through hole.

[0011] In some embodiments, a first fixing pin is movably inserted through the outer wall of the first adjusting nut, and a first through hole is provided on one side of the adjusting screw. After the first adjusting nut is threadedly connected to the adjusting screw, the first fixing pin passes through the first adjusting nut and is inserted into the first through hole.

[0012] In some embodiments, the first through holes are provided at multiple intervals along the axial direction of the adjusting screw.

[0013] In some embodiments, a second fixing pin is movably inserted through the outer wall of the second adjusting nut, and a second through hole is provided on one side of the adjusting screw. After the second adjusting nut is threadedly connected to the adjusting screw, the second fixing pin passes through the second adjusting nut and is inserted into the second through hole.

[0014] In some embodiments, the second through holes are provided at intervals along the axial direction of the adjusting screw.

[0015] In some embodiments, the support includes a steel frame and a steel plate welded to the upper end of the steel frame, the slide is disposed on the steel plate, and the support baffle is integrally formed with the steel plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: by cooperating with the slide groove and the horizontal shaft, combined with the adjusting screw pushing structure, the first adjusting nut (rear locking limit) and the second adjusting nut (front spring preload) work together to make the spring form an elastic preload force, and this elastic preload force can be adjusted, thereby pressing the wire rope through the rope pressing wheel, thus preventing the wire rope from derailing due to uneven force and jumping during operation; in addition, the application of standardized screw, nut and spring assembly reduces manufacturing costs, and the modular design facilitates partial replacement and maintenance, reducing downtime. Attached Figure Description

[0017] Figure 1 This is a side view of the rope pressing device of this utility model;

[0018] Figure 2 This is a top view of the rope pressing device of this utility model;

[0019] Figure 3 This is a partial structural diagram of the rope pressing device of this utility model;

[0020] Figure 4 This is an exploded structural diagram of the rope pressing device of this utility model. Detailed Implementation

[0021] The following detailed description provides various embodiments or examples for implementing this utility model. Of course, these are merely embodiments or examples and are not intended to be limiting. Additionally, repeated reference numerals, such as repeated numbers and / or letters, may be used in different embodiments. These repetitions are for the purpose of simple and clear description of this utility model and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0022] like Figures 1-4 An adjustable crane wire rope pressing device is shown, comprising a bracket 1 spaced apart on the left and right, a sliding groove 2 extending in the front-back direction on each of the two brackets 1, a horizontal shaft 3 connected between the two sliding grooves 2 and capable of sliding back and forth along the sliding grooves 2, a pressing wheel 10 on the horizontal shaft 3, a support baffle 4 on the bracket 1 and located behind the sliding grooves 2, an adjusting screw 5 passing through the support baffle 4, the front end of the adjusting screw 5 abutting against the horizontal shaft 3, and the rear end threadedly connected to a first adjusting nut 6, a second adjusting nut 7 threadedly connected to the adjusting screw 5 and located in front of the support baffle 4, and a spring 8 connected between the second adjusting nut 7 and the support baffle 4, the spring 8 being sleeved on the adjusting screw 5.

[0023] According to the above structure, through the cooperation of the slide groove 2 and the horizontal shaft 3, combined with the pushing structure of the adjusting screw 5, the first adjusting nut 6 (rear locking limit) and the second adjusting nut 7 (front spring preload) work together to make the spring 8 form an elastic preload force, and this elastic preload force can be adjusted. Thus, the wire rope on the drum 100 is pressed tightly by the rope pressing wheel 10, thereby preventing the wire rope from derailing due to uneven force and jumping during operation. In addition, the application of standardized screw, nut and spring assembly reduces manufacturing costs, and the modular design facilitates partial replacement and maintenance, reducing downtime.

[0024] See Figure 3 , Figure 4 As shown, a positioning hole 61 is provided on one side of both ends of the horizontal axis 3, and the front end of the adjusting screw 5 can be inserted into the positioning hole 61. Multiple positioning holes 61 are provided at intervals along the axial direction of the horizontal axis 3.

[0025] Furthermore, a third adjusting nut 81 is threadedly connected to the adjusting screw 5. The third adjusting nut 81 is located between the horizontal shaft 3 and the second adjusting nut 7, and one end of the third adjusting nut 81 can abut against the side wall of the horizontal shaft 3.

[0026] When the adjusting screw 5 is installed with the horizontal shaft 3, first screw the third adjusting nut 81 onto the adjusting screw 5, and then insert the adjusting screw 5 into the corresponding positioning hole 61. At this time, one end of the third adjusting nut 81 abuts against the side wall of the horizontal shaft 3, so that the horizontal shaft 3 can be pushed by the third adjusting nut 81, and the axial movement of the horizontal shaft 3 can be restricted. In addition, the position of the third adjusting nut 81 on the adjusting screw 5 can be adjusted by turning the third adjusting nut 81, thereby adjusting the preload of the spring 8.

[0027] In this utility model, the first adjusting nut 6, the second adjusting nut 7, and the third adjusting nut 81 have the same structure, and each of them has a through hole drilled on one side for the fixing pin to be inserted and cooperate with the through hole of the adjusting screw 5.

[0028] Specifically, a first fixing pin 21 is movably inserted through the outer wall of the first adjusting nut 6, and a first through hole 22 is provided on one side of the adjusting screw 5. After the first adjusting nut 6 is threadedly connected to the adjusting screw 5, the first fixing pin 21 passes through the first adjusting nut 6 and is inserted into the first through hole 22. Multiple first through holes 22 are provided at intervals along the axial direction of the adjusting screw 5.

[0029] A second fixing pin 41 is movably inserted through the outer wall of the second adjusting nut 7. A second through hole 42 is provided on one side of the adjusting screw 5. After the second adjusting nut 7 is threadedly connected to the adjusting screw 5, the second fixing pin 41 passes through the second adjusting nut 7 and is inserted into the second through hole 42. Multiple second through holes 42 are provided at intervals along the axial direction of the adjusting screw 5.

[0030] A third fixing pin 91 is movably inserted through the outer wall of the third adjusting nut 81, and a third through hole 92 is provided on one side of the adjusting screw 5. After the third adjusting nut 81 is threadedly connected to the adjusting screw 5, the third fixing pin 91 passes through the third adjusting nut 81 and is inserted into the third through hole 92.

[0031] The bracket 1 includes a steel frame 95 and a steel plate 96 welded to the upper end of the steel frame 95. The sliding groove 2 is provided on the steel plate 96, and the supporting baffle 4 is integrally formed with the steel plate 96.

[0032] The specific installation structure and working principle of the rope pressing device of this utility model are as follows:

[0033] During installation, the horizontal shaft 3 passes between the two sliding grooves 2. The adjusting screw 5 passes through the support baffle 4. A spring 8 is fitted onto the adjusting screw 5. Then, the first adjusting nut 6, the second adjusting nut 7, and the third adjusting nut 81 are screwed in respectively. The front end of the adjusting screw 5 is inserted into the positioning hole 61, and the third fixing pin 91 is inserted to fix the third adjusting nut 81, so that the third adjusting nut 81 is kept against the horizontal shaft 3 under the action of the spring 8. Then, the wire rope is pressed by the rope pressing wheel 10 on the horizontal shaft 3. Then, the second fixing pin 41 passes through the second adjusting nut 7 and is inserted into the corresponding second through hole 42. The first fixing pin 21 passes through the first adjusting nut 6 and is inserted into the corresponding first through hole 22, thus completing the installation. Of course, the positions of the second adjusting nut 7 and the first adjusting nut 6 can be adjusted according to the needs of the site, thereby adjusting the preload of the spring 8 to meet the needs of different application scenarios.

[0034] Based on the accompanying drawings and the foregoing display and description of the basic principles, main features, and advantages of this utility model, those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An adjustable crane wire rope pressing device, characterized in that: The device includes two brackets (1) spaced apart on the left and right sides. Each bracket (1) has a sliding groove (2) extending in the front-back direction. A horizontal shaft (3) that can slide back and forth along the sliding groove (2) is connected between the two sliding grooves (2). A rope pressing wheel (10) is provided on the horizontal shaft (3). A support baffle (4) is provided on the bracket (1) and located on the rear side of the sliding groove (2). An adjusting screw (5) is passed through the support baffle (4) at the front and back. The front end of the adjusting screw (5) abuts against the horizontal shaft (3), and the rear end is threadedly connected to a first adjusting nut (6). A second adjusting nut (7) is also threadedly connected on the adjusting screw (5) and located on the front side of the support baffle (4). A spring (8) is connected between the second adjusting nut (7) and the support baffle (4).

2. The adjustable crane wire rope pressing device according to claim 1, characterized in that: A positioning hole (61) is provided on one side of both ends of the horizontal shaft (3), and the front end of the adjusting screw (5) can be inserted into the positioning hole (61).

3. The adjustable crane wire rope pressing device according to claim 2, characterized in that: The positioning holes (61) are provided at multiple intervals along the axial direction of the transverse axis (3).

4. The adjustable crane wire rope pressing device according to claim 3, characterized in that: A third adjusting nut (81) is also threaded onto the adjusting screw (5). The third adjusting nut (81) is located between the horizontal shaft (3) and the second adjusting nut (7), and one end of the third adjusting nut (81) can abut against the side wall of the horizontal shaft (3).

5. An adjustable crane wire rope pressing device according to claim 4, characterized in that: A third fixing pin (91) is movably inserted through the outer wall of the third adjusting nut (81), and a third through hole (92) is provided on one side of the adjusting screw (5). After the third adjusting nut (81) is threadedly connected to the adjusting screw (5), the third fixing pin (91) passes through the third adjusting nut (81) and is inserted into the third through hole (92).

6. The adjustable crane wire rope pressing device according to claim 1, characterized in that: A first fixing pin (21) is movably inserted through the outer wall of the first adjusting nut (6), and a first through hole (22) is provided on one side of the adjusting screw (5). After the first adjusting nut (6) is threadedly connected to the adjusting screw (5), the first fixing pin (21) passes through the first adjusting nut (6) and is inserted into the first through hole (22).

7. An adjustable crane wire rope pressing device according to claim 6, characterized in that: The first through hole (22) is provided with multiple holes spaced apart along the axial direction of the adjusting screw (5).

8. An adjustable crane wire rope pressing device according to claim 1, characterized in that: A second fixing pin (41) is movably inserted through the outer wall of the second adjusting nut (7), and a second through hole (42) is provided on one side of the adjusting screw (5). After the second adjusting nut (7) is threadedly connected to the adjusting screw (5), the second fixing pin (41) passes through the second adjusting nut (7) and is inserted into the second through hole (42).

9. An adjustable crane wire rope pressing device according to claim 8, characterized in that: The second through hole (42) is provided in multiple intervals along the axial direction of the adjusting screw (5).

10. An adjustable crane wire rope pressing device according to claim 1, characterized in that: The bracket (1) includes a steel frame (95) and a steel plate (96) welded to the upper end of the steel frame (95). The slide (2) is provided on the steel plate (96). The support baffle (4) is integrally formed with the steel plate (96).

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