Steel wire rope prestretching winding drum

Abstract

The utility model discloses a steel wire rope prestretching winding drum, and belongs to the technical field of steel wire ropes. The steel wire rope pre-stretching winding drum comprises a cylinder body, mounting seats are fixedly connected to the front end and the rear end of the cylinder body, and connecting threaded holes are formed in the mounting seats; a friction assembly is arranged in the cylinder body and comprises a fixing groove, the fixing groove is formed in the surface of the cylinder body, a spring is fixedly connected to the inner wall of the fixing groove, a positioning block is fixedly connected to the end, away from the cylinder body, of the spring, and a mounting frame is fixedly connected to the top of the positioning block. And supporting rollers are rotationally connected to the inner sides of the mounting frames, the number of the fixing grooves is six, and the six fixing grooves are distributed in a circumferential array mode relative to the cylinder body. The utility model is used for solving the problem that the steel wire rope slides due to larger pre-stretching tonnage or the steel wire rope is damaged due to overlarge clamping force.

Description

Technical Field

[0001] The utility model relates to the technical field of steel wire ropes, in particular to a steel wire rope pre-tensioning drum. Background Art

[0002] In dynamic systems, wire ropes are widely used in the lifting of cranes and elevators, the transmission of mechanical power, the control of automobile cockpit rods, the operation of aircraft control systems, etc. In static systems, wire ropes are also widely used in various industries such as the stability of the pulling support tower of the suspension bridge and the design of new railings. Wire rope pre-stretching is an important process in the production process of wire ropes. Its characteristics are that the wire rope has no end, and the tensile force is very large, generally around several hundred tons.

[0003] When the pre-stretching tonnage of the wire rope is large, in order to ensure that there is no slippage, the wire rope clamping force is required to be increased. It is not possible to directly increase the wire rope clamping force, because excessive clamping force will cause damage to the wire rope. Other methods must be considered to increase the tension. Utility Model Content

[0004] The utility model aims to solve the problem of sliding caused by large pre-stretching tonnage of steel wire rope in the prior art. To this end, the utility model proposes a steel wire rope pre-stretching drum, which can increase the tension and reduce the possibility of sliding.

[0005] A wire rope pre-tensioning drum comprises a cylindrical body, the front end and the rear end of the cylindrical body are fixedly connected with a mounting seat, and the mounting seat is provided with a connecting threaded hole;

[0006] A friction assembly is provided inside the cylindrical body, and the friction assembly includes a fixing groove, which is opened on the surface of the cylindrical body, a spring is fixedly connected to the inner wall of the fixing groove, a positioning block is fixedly connected to the end of the spring away from the cylindrical body, a mounting frame is fixedly connected to the top of the positioning block, and a support roller is rotatably connected to the inner side of the mounting frame.

[0007] Furthermore, there are six fixing grooves in total, and the six fixing grooves are distributed in a circle with respect to the cylindrical body.

[0008] Furthermore, the springs are provided in a total of six groups, with five springs in each group, so that the positioning block is more evenly subjected to the force of the springs.

[0009] Furthermore, an auxiliary component is arranged inside the cylindrical body, and the auxiliary component includes a hydraulic chamber, a piston at one end of the hydraulic chamber is slidably connected to a force rod, and a piston at the other end of the hydraulic chamber is slidably connected to a push rod, and an end of the push rod away from the hydraulic chamber is fixedly connected to a fixed plate, and an outer surface of the fixed plate is fixedly connected to a rubber block, and a circular hole is opened on the outer surface of the cylindrical body.

[0010] Furthermore, the force-bearing rod is located on one side of the positioning block close to the central axis of the cylindrical body, and the force-bearing rod and the positioning block are in a fixed state, so that when the positioning block moves, the force-bearing rod can move accordingly.

[0011] Furthermore, an opening is provided in the fixing groove, and the cross-sectional shape of the opening of the fixing groove is the same as the cross-sectional shape of the stress-bearing rod, so that the stress-bearing rod can pass through the opening and be placed on the other side of the fixing groove.

[0012] The difference from the prior art is that the beneficial effects of this application are:

[0013] (1) The wire rope pre-stretching drum places the wire rope on the cylinder body. When the wire rope is not under stress, the support roller is in a spring-up state, and the wire rope can move freely on the support roller. When the wire rope is tightened, the wire rope cooperates with the positioning block, spring and fixing groove to increase the friction between the wire rope and the cylinder body, thereby increasing the tension and reducing the possibility of sliding.

[0014] (2) When the positioning block squeezes the spring of the wire rope pre-tensioning drum to move, the positioning block immediately drives the force-bearing rod to move, and cooperates with the hydraulic compartment to drive the push rod to move, and the push rod drives the fixed plate to move, so that the fixed plate drives the rubber block to move. At this time, the rubber block passes through the circular hole on the surface of the cylinder body and protrudes onto the cylinder body, thereby further increasing the friction between the wire rope and the cylinder body and reducing the possibility of sliding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0016] Figure 1 It is a schematic diagram of the overall appearance of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the overall sectional three-dimensional structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the friction component of the utility model;

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the auxiliary component of the utility model.

[0020] In the figure:

[0021] 100, cylinder body; 200, mounting seat; 300, connecting threaded hole;

[0022] 400, friction assembly; 410, fixing groove; 420, spring; 430, positioning block; 440, mounting frame; 450, supporting roller;

[0023] 500, auxiliary component; 510, hydraulic compartment; 520, force rod; 530, push rod; 540, fixing plate; 550, rubber block; 560, round hole. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only embodiments of a part of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application are described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, the process, method, system, product or equipment comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0026] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0027] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0028] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] Embodiment 1

[0031] See also Figure 1-Figure 3 As shown in the figure, a wire rope pre-tensioning drum includes a cylindrical body 100, the front end and the rear end of the cylindrical body 100 are fixedly connected with a mounting seat 200, and a connecting threaded hole 300 is opened on the mounting seat 200;

[0032] The friction assembly 400 is arranged inside the cylindrical body 100. The friction assembly 400 includes a fixed groove 410. There are six fixed grooves 410 in total. The six fixed grooves 410 are arranged in a circular row about the cylindrical body 100. Among them, the fixed groove 410 is opened on the surface of the cylindrical body 100. The inner wall of the fixed groove 410 is fixedly connected with a spring 420. There are six groups of springs 420 in total. Each group of springs 420 is provided with five springs. The end of the spring 420 away from the cylindrical body 100 is fixedly connected with a positioning block 430. The top of the positioning block 430 is fixedly connected with a mounting frame 440. The inner side of the mounting frame 440 is rotatably connected with a support roller 450. The steel wire rope is placed on the cylindrical body 100. When the steel wire rope is not subjected to force, the support roller 450 is in a pop-up state. At this time, the steel wire rope can move freely on the support roller 450, both radially and axially. When the wire rope is tightened, the wire rope squeezes the support roller 450, so that the positioning block 430 squeezes the spring 420 fixedly connected thereto and moves, and the support roller 450 is retracted into the fixed groove 410 on the cylindrical body 100. Since the cylindrical body 100 is fixed and does not rotate, as the wire rope is tightened, the friction between the wire rope and the cylindrical body 100 will increase. After winding 6 turns of the wire rope, when the tension reaches about 400T, the tension at the end is only about tens of tons, or even less than 10 tons, reducing the possibility of sliding.

[0033] When in use, the steel wire rope is placed on the cylindrical body 100. When the steel wire rope is not subjected to force, the support roller 450 is in a spring-up state, and the steel wire rope can move freely on the support roller 450, both radially and axially. When the steel wire rope is tightened, the steel wire rope squeezes the support roller 450, so that the positioning block 430 squeezes the spring 420 fixedly connected thereto and moves, and the support roller 450 is received in the fixed groove 410 on the cylindrical body 100. Since the cylindrical body 100 is fixed and does not rotate, as the steel wire rope is tightened, the friction between the steel wire rope and the cylindrical body 100 will increase accordingly.

[0034] To further increase friction, see Figure 1-Figure 4 As shown in the figure, an auxiliary component 500 is arranged inside the cylinder body 100, and the auxiliary component 500 includes a hydraulic chamber 510. Among them, a piston at one end of the hydraulic chamber 510 is slidably connected to a force rod 520, and an opening is opened in the fixed groove 410. The cross-sectional shape of the opening of the fixed groove 410 is the same as the cross-sectional shape of the force rod 520. The force rod 520 is located on the side of the positioning block 430 close to the central axis of the cylinder body 100. The force rod 520 and the positioning block 430 are in a fixed state. When the positioning block 430 squeezes the spring 420 to move, the positioning block 430 immediately drives the force rod 520 fixedly connected thereto to move. The other end of the hydraulic chamber 510 is slidably connected to a push rod 530. When the force rod 520 moves, the hydraulic chamber 510 that is slidably connected to the piston of the force rod 520 cooperates, so that the pressure inside the hydraulic chamber 510 increases, and drives the push rod 530 that is slidably connected to the piston of the hydraulic chamber 510 to move. The end of the push rod 530 away from the hydraulic tank 510 is fixedly connected to a fixing plate 540, and the outer surface of the fixing plate 540 is fixedly connected to a rubber block 550, and the outer surface of the cylindrical body 100 is provided with a circular hole 560. When the push rod 530 moves, the push rod 530 drives the fixing plate 540 fixedly connected thereto to move, so that the fixing plate 540 drives the rubber block 550 fixedly connected thereto to move, and at this time, the rubber block 550 passes through the circular hole 560 on the surface of the cylindrical body 100 and protrudes onto the cylindrical body 100, thereby further increasing the friction between the wire rope and the cylindrical body 100 and reducing the possibility of sliding.

[0035] When in use, when the positioning block 430 squeezes the spring 420 to move, the positioning block 430 immediately drives the force-bearing rod 520 fixedly connected thereto to move, and cooperates with the hydraulic chamber 510 that is slidingly connected to the piston of the force-bearing rod 520, so that the pressure inside the hydraulic chamber 510 increases, driving the push rod 530 that is slidingly connected to the piston of the hydraulic chamber 510 to move, and the push rod 530 drives the fixed plate 540 fixedly connected thereto to move, so that the fixed plate 540 drives the rubber block 550 fixedly connected thereto to move, and at this time, the rubber block 550 passes through the circular hole 560 on the surface of the cylindrical body 100 and protrudes onto the cylindrical body 100.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wire rope pre-tensioning drum, comprising a cylindrical body (100), wherein the front and rear ends of the cylindrical body (100) are fixedly connected to a mounting seat (200), and a connecting threaded hole (300) is provided on the mounting seat (200); Features: A friction assembly (400) is arranged inside the cylindrical body (100), and the friction assembly (400) comprises a fixing groove (410), and the fixing groove (410) is opened on the surface of the cylindrical body (100), and a spring (420) is fixedly connected to the inner wall of the fixing groove (410), and a positioning block (430) is fixedly connected to one end of the spring (420) away from the cylindrical body (100), and a mounting frame (440) is fixedly connected to the top of the positioning block (430), and a supporting roller (450) is rotatably connected to the inner side of the mounting frame (440).

2. A wire rope pre-tensioning drum according to claim 1, characterized in that: A total of six fixing grooves (410) are provided, and the six fixing grooves (410) are distributed in a circular row with respect to the cylindrical body (100).

3. The steel wire rope pre-tensioning drum according to claim 1, characterized in that: A total of six groups of springs (420) are provided, and each group of springs (420) is provided with five springs (420).

4. The steel wire rope pre-tensioning drum according to claim 1, characterized in that: An auxiliary component (500) is arranged inside the cylindrical body (100), and the auxiliary component (500) includes a hydraulic chamber (510), a piston at one end of the hydraulic chamber (510) is slidably connected to a force-bearing rod (520), and a piston at the other end of the hydraulic chamber (510) is slidably connected to a push rod (530), and one end of the push rod (530) away from the hydraulic chamber (510) is fixedly connected to a fixed plate (540), and the outer surface of the fixed plate (540) is fixedly connected to a rubber block (550), and a circular hole (560) is opened on the outer surface of the cylindrical body (100).

5. The steel wire rope pre-tensioning drum according to claim 4, characterized in that: The force-bearing rod (520) is located on one side of the positioning block (430) close to the central axis of the cylindrical body (100), and the force-bearing rod (520) and the positioning block (430) are in a fixed state.

6. The steel wire rope pre-tensioning drum according to claim 4, characterized in that: An opening is provided in the fixing groove (410), and the cross-sectional shape of the opening of the fixing groove (410) is the same as the cross-sectional shape of the force-bearing rod (520).

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