Multi-stage clamping device for pre-stretching steel wire rope

Abstract

The utility model relates to the technical field of steel wire ropes, in particular to a multi-stage clamping device for prestretching a steel wire rope. The movable base is arranged on the workbench, a fixed seat is fixedly connected to the movable base, a common mold is fixedly connected to the fixed seat, a first rotating shaft is fixedly connected to the movable base, and a clamping oil cylinder is rotationally connected to the first rotating shaft; according to the multi-stage clamping device for pre-stretching the steel wire rope, the tension cannot be reduced regardless of aging or deformation, so that the tension difference between the two sides of each clamping assembly and the steel wire rope is not larger than a certain set numerical value, the steel wire rope is not damaged, the maximum friction force can be obtained under the condition that the maximum allowable clamping force is ensured, and the service life of the steel wire rope is prolonged. And meanwhile, when a wedge block moves backwards, a push-pull groove can be driven to pull a push-pull block, when the push-pull block is pulled, a movable seat and a working module can be driven to move, and the working module can conveniently clamp the steel wire rope.

Description

Technical Field

[0001] The utility model relates to the technical field of steel wire ropes, in particular to a multi-stage clamping device for pre-stretching steel wire ropes. Background Art

[0002] Steel wire rope is a spiral steel wire bundle twisted together with steel wires that meet the requirements of mechanical properties and geometric dimensions according to certain rules. Steel wire rope is composed of steel wire, rope core and grease. Steel wire rope is first twisted into strands by multiple layers of steel wires, and then a certain number of strands are twisted into a spiral rope with the rope core as the center. Therefore, a multi-stage clamping device for pre-stretching of steel wire rope is required. Steel wire rope needs to be pre-stretched during processing. However, when the pre-stretching tonnage of the steel wire rope is large, in order to ensure that there is no sliding phenomenon, the clamping force of the steel wire rope is required to be increased. It is not possible to directly increase the clamping force of the steel wire rope, because excessive clamping force will cause damage to the steel wire rope. Utility Model Content

[0003] The utility model aims to provide a multi-stage clamping device for pre-stretching a steel wire rope, so as to solve the problem that the multi-stage clamping device for pre-stretching a steel wire rope currently on the market has many defects and is easy to cause damage to the steel wire rope during clamping.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-stage clamping device for pre-tensioning a steel wire rope, comprising: a movable base;

[0005] The movable base is arranged on a workbench, a fixed seat is fixedly connected to the movable base, a common mold is fixedly connected to the fixed seat, a first rotating shaft is fixedly connected to the movable base, a clamping oil cylinder is rotatably connected to the first rotating shaft, a second rotating shaft is rotatably connected to the output end of the clamping oil cylinder, and a wedge is fixedly connected to the side of the second rotating shaft;

[0006] A positioning seat is fixedly connected to the movable base near the inclined surface of the wedge block, a push-pull groove is provided on the side of the wedge block, a push-pull block is movably connected inside the push-pull groove, a moving seat is fixedly connected to the end of the push-pull block, a slider is fixedly connected to the bottom of the moving seat, a slide groove is provided on the top of the movable base, a slider is movably connected inside the slide groove, a working module is fixedly connected to the moving seat near the commonly used mold, a thrust cylinder is installed on the side of the movable base, and the thrust cylinder is installed on the workbench.

[0007] As a preferred solution of the utility model, the common mold and the working module have the same size, and arc-shaped grooves are provided on the surfaces of the common mold and the working module.

[0008] As a preferred solution of the utility model, a rotating structure is formed between the movable base and the clamping cylinder through a first rotating shaft, a rotating structure is formed between the clamping cylinder and the wedge block through a second rotating shaft, and a telescopic structure is formed between the first rotating shaft and the second rotating shaft through the clamping cylinder.

[0009] As a preferred solution of the utility model, the surfaces of the wedge block and the positioning seat are provided with inclined surfaces, and the angles of the inclined surfaces of the wedge block and the positioning seat are the same.

[0010] As a preferred solution of the utility model, the push-pull groove and the push-pull block are slidably connected, and the transverse cross-section of the push-pull groove is trapezoidal.

[0011] As a preferred solution of the utility model, the slider and the slide groove are both in a trapezoidal shape, a sliding structure is provided between the slider and the slide groove, and two groups of the slider and the slide groove are provided.

[0012] As a preferred solution of the utility model, a telescopic structure is formed between the movable base and the thrust cylinder, and the movable base is movably connected to the workbench.

[0013] Compared with the prior art, the beneficial effect of the utility model is that the multi-stage clamping device for pre-stretching the wire rope will not reduce the tension regardless of aging or deformation, so that the tension difference on the wire rope on both sides of each clamping component is no more than a certain set value, which ensures that under the condition of the maximum allowable clamping force, the wire rope is not damaged and the maximum friction force can be obtained. At the same time, when the wedge block moves backward, it can drive the push-pull groove to pull the push-pull block. When the push-pull block is pulled, it can drive the moving seat and the working module to move, so that the working module can clamp the wire rope conveniently.

[0014] 1. There are multiple groups of pre-stretching clamping devices. A group of thrust cylinders is set between each clamping device. The thrust cylinders ensure that the tension between the two clamping devices is not less than a certain set tension value. Each group of thrust cylinders can ensure that the tension on the wire rope between the two adjacent clamping components remains unchanged. Neither aging nor deformation will reduce this tension. In this way, the tension difference on the wire rope on both sides of each clamping component is greater than a certain set value. This ensures that under the condition of the maximum allowable clamping force, the wire rope is not damaged and the maximum friction force can be obtained;

[0015] 2. When the clamping cylinder is working, it can push the wedge block forward to move, and when the wedge block moves, it can push the moving seat. When the wedge block moves, it can drive the push-pull groove to move. When the push-pull groove moves, it can squeeze the push-pull block by its own tilt surface. When the push-pull block is squeezed, it can push the moving seat and the working module. At the same time, when the wedge block moves backward, it can drive the push-pull groove to pull the push-pull block. When the push-pull block is pulled, it can drive the moving seat and the working module to move, so that the working module can clamp the wire rope conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the process structure of the utility model;

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

[0018] Figure 3 It is a schematic diagram of the side cross-sectional structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the utility model from top view;

[0020] Figure 5 For this utility model Figure 3 Enlarged structural diagram of part A.

[0021] In the figure: 1. movable base; 2. fixed seat; 3. common mold; 4. first rotating shaft; 5. clamping cylinder; 6. second rotating shaft; 7. wedge block; 8. positioning seat; 9. push-pull groove; 10. push-pull block; 11. movable seat; 12. slider; 13. slide groove; 14. working module; 15. thrust cylinder. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 5 , the utility model provides an embodiment: a multi-stage clamping device for pre-stretching a steel wire rope, comprising: a movable base 1;

[0024] The movable base 1 is arranged on the workbench, and a fixed base 2 is fixedly connected to the movable base 1, and a common mold 3 is fixedly connected to the fixed base 2. The common mold 3 has the same size as the working module 14, and arc grooves are arranged on the surfaces of the common mold 3 and the working module 14. The common mold 3 and the working module 14 can clamp the wire rope through their own arc grooves. A first rotating shaft 4 is fixedly connected to the movable base 1, and a rotating structure is formed between the movable base 1 and the clamping cylinder 5 through the first rotating shaft 4, and a rotating structure is formed between the clamping cylinder 5 and the wedge block 7 through the second rotating shaft 6. A telescopic structure is formed between the first rotating shaft 4 and the second rotating shaft 6 through the clamping cylinder 5, and when the clamping cylinder 5 is working, the output end will clamp the wedge block 7 When the wedge block 7 is pushed, it can move obliquely through its own inclined surface. When the wedge block 7 moves obliquely, it can drive the second rotating shaft 6 to move obliquely. When the second rotating shaft 6 moves obliquely, it can drive the clamping cylinder 5 to rotate. When the clamping cylinder 5 rotates, it can rotate through the first rotating shaft 4. The clamping cylinder 5 is rotatably connected to the first rotating shaft 4. The output end of the clamping cylinder 5 is rotatably connected to the second rotating shaft 6. The side of the second rotating shaft 6 is fixedly connected with the wedge block 7. The surfaces of the wedge block 7 and the positioning seat 8 are provided with inclined surfaces. The angles of the inclined surfaces of the wedge block 7 and the positioning seat 8 are the same. When the wedge block 7 moves, it can drive its own inclined surface to move. When the inclined surface of the wedge block 7 moves, the inclined surface of the positioning seat 8 will squeeze it.

[0025] A positioning seat 8 is fixedly connected to the movable base 1 near the inclined surface of the wedge block 7. A push-pull groove 9 is provided on the side of the wedge block 7. The push-pull groove 9 is slidably connected to the push-pull block 10. The transverse cross-section of the push-pull groove 9 is trapezoidal. When the wedge block 7 moves, the push-pull groove 9 can be driven to move. When the push-pull groove 9 moves, it can push the push-pull block 10 through its own inclined surface. When the push-pull block 10 is pushed, it can drive the moving seat 11 to move. The push-pull groove 9 is movably connected to the push-pull block 10. The end of the push-pull block 10 A movable seat 11 is fixedly connected, and a slider 12 is fixedly connected to the bottom of the movable seat 11. The slider 12 and the slide groove 13 are both trapezoidal in shape. There is a sliding structure between the slider 12 and the slide groove 13. The slider 12 and the slide groove 13 are provided with two groups. When the movable seat 11 moves, the slider 12 can be driven to move. When the slider 12 moves, it can slide through the slide groove 13. The top of the movable base 1 is provided with a slide groove 13, and the slider 12 is movably connected inside the slide groove 13. A movable seat 11 near the common mold 3 is fixedly connected to Working module 14, a thrust cylinder 15 is installed on the side of the movable base 1, and the thrust cylinder 15 is installed on the workbench. A telescopic structure is formed between the movable base 1 and the thrust cylinder 15. The movable base 1 is movably connected to the workbench. A group of thrust cylinders 15 is set between each clamping device. The thrust cylinder 15 ensures that the tension between the two clamping devices is not less than a certain set tension value. Each group of thrust cylinders 15 can ensure that the tension on the wire rope between the two adjacent groups of clamping components always remains unchanged, and the tension will not be reduced by aging or deformation. In this way, the tension difference on the wire rope on both sides of each clamping component is not greater than a certain set value, which ensures that under the condition of the maximum allowable clamping force, the wire rope is not damaged and the maximum friction force can be obtained. When the wire rope is stretched, the thrust cylinder 15 follows the action to keep the wire rope tension between adjacent clamping components unchanged. The action of the clamping device is carried out in stages, according to the maximum tension that each clamping device can provide without damaging the wire rope. Multiple sets of clamping devices work together to achieve the set tension. Assuming that each clamping device can withstand a tension of 150 tons, the tension difference between two adjacent clamping devices will be guaranteed to be 150 tons. Three sets of clamping devices can achieve a pre-stretching tonnage of 450T, thereby ensuring that the stretching tonnage remains unchanged and avoiding damage to the surface of the wire rope.

[0026] Working principle: Figure 1-Figure 5As shown, when the multi-stage clamping device for pre-stretching the wire rope is used, the common mold 3 and the working module 14 are moved between the wire rope, and the clamping cylinder 5 can be started to work at this time. When the clamping cylinder 5 is working, the output end will push the wedge block 7, and when the wedge block 7 moves, it can drive its own inclined surface to move, and when the inclined surface of the wedge block 7 moves, the inclined surface of the positioning seat 8 will squeeze it obliquely, and when the wedge block 7 moves obliquely, it can drive the second rotating shaft 6 to move obliquely, and when the second rotating shaft 6 moves obliquely, it can drive the clamping cylinder 5 to rotate, and when the clamping cylinder 5 rotates, it can rotate through the first rotating shaft 4, and when the wedge block 7 moves, it can drive the push-pull groove 9 to move, and when the push-pull groove 9 moves, it can move through its own inclined surface The push-pull block 10 pushes, and when the push-pull block 10 is pushed, it can drive the moving seat 11 to move, and when the moving seat 11 moves, it can drive the slider 12 to move, and when the slider 12 moves, it can slide through the slide groove 13, and the moving seat 11 can drive the working module 14 to move while moving, and when the working module 14 moves, it can clamp the wire rope through its own arc-shaped groove. When the wire rope is stretched, the thrust cylinder 15 follows the action to keep the wire rope tension between adjacent clamping components unchanged. The action of the clamping device is carried out in stages, according to the maximum tension that each clamping device can provide without damaging the wire rope. The content not described in detail in this description belongs to the existing technology known to professional and technical personnel in this field.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-stage clamping device for pre-tensioning a steel wire rope, comprising: The movable base (1) is characterized by: The movable base (1) is arranged on a workbench, the movable base (1) is fixedly connected to a fixed base (2), the fixed base (2) is fixedly connected to a common mold (3), the movable base (1) is fixedly connected to a first rotating shaft (4), the first rotating shaft (4) is rotatably connected to a clamping cylinder (5), the output end of the clamping cylinder (5) is rotatably connected to a second rotating shaft (6), and a wedge block (7) is fixedly connected to the side of the second rotating shaft (6); A positioning seat (8) is fixedly connected to the movable base (1) near the inclined surface of the wedge block (7), a push-pull groove (9) is provided on the side of the wedge block (7), a push-pull block (10) is movably connected inside the push-pull groove (9), a moving seat (11) is fixedly connected to the end of the push-pull block (10), a slider (12) is fixedly connected to the bottom of the moving seat (11), a slide groove (13) is provided on the top of the movable base (1), a slider (12) is movably connected inside the slide groove (13), a working module (14) is fixedly connected to the moving seat (11) near the common mold (3), a thrust cylinder (15) is installed on the side of the movable base (1), and the thrust cylinder (15) is installed on the workbench.

2. A multi-stage clamping device for pre-tensioning a steel wire rope according to claim 1, characterized in that: The common mold (3) and the working module (14) have the same size, and arc-shaped grooves are provided on the surfaces of the common mold (3) and the working module (14).

3. A multi-stage clamping device for pre-tensioning a steel wire rope according to claim 1, characterized in that: A rotating structure is formed between the movable base (1) and the clamping cylinder (5) via a first rotating shaft (4), a rotating structure is formed between the clamping cylinder (5) and the wedge block (7) via a second rotating shaft (6), and a telescopic structure is formed between the first rotating shaft (4) and the second rotating shaft (6) via the clamping cylinder (5).

4. A multi-stage clamping device for pre-tensioning a steel wire rope according to claim 1, characterized in that: The surfaces of the wedge block (7) and the positioning seat (8) are provided with inclined surfaces, and the angles of the inclined surfaces of the wedge block (7) and the positioning seat (8) are the same.

5. The multi-stage clamping device for pre-tensioning a steel wire rope according to claim 1, characterized in that: The push-pull groove (9) and the push-pull block (10) are slidably connected, and the transverse cross section of the push-pull groove (9) is trapezoidal.

6. A multi-stage clamping device for pre-tensioning a steel wire rope according to claim 1, characterized in that: The slider (12) and the slide groove (13) are both in a trapezoidal shape, a sliding structure is provided between the slider (12) and the slide groove (13), and two groups of the slider (12) and the slide groove (13) are provided.

7. A multi-stage clamping device for pre-tensioning a steel wire rope according to claim 1, characterized in that: A telescopic structure is formed between the movable base (1) and the thrust cylinder (15), and the movable base (1) is movably connected to the workbench.

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