Steel wire rope pre-deformer

Abstract

The utility model discloses a steel wire rope pre-deformer which comprises a threaded main shaft, an upper thread and a lower thread are arranged on the threaded main shaft, and the thread pitch of the upper thread is twice that of the lower thread. An upper end disc, a middle disc, a lower end disc and a worm gear are sequentially installed on the threaded spindle from top to bottom, the upper end disc is located at the upper thread position, the middle disc is located at the lower thread position, and the lower end disc and the worm gear are both rotationally connected with the threaded spindle through copper sleeves. The worm gear is connected with the middle disc through a shifting pin, and the periphery of the worm gear is meshed with the worm through threads. The thread main shaft, the end disc, the middle disc and the lower end disc are adopted to form a center distance adjusting mechanism to adjust the center distance between the steel wire rope and deformation, the worm wheel, the worm and the shifting pin are adopted to form a rolling reduction adjusting mechanism to adjust the rolling reduction of steel wire rope pre-deformation, the small pre-deformation parameter adjusting requirement can be met, and the working efficiency is improved. The device is suitable for pre-deformation of small-specification steel wire ropes.

Description

Technical Field

[0001] The utility model belongs to the technical field of wire rope production, and particularly relates to a wire rope pre-deformer. Background Technique

[0002] The statements herein only provide background techniques related to the utility model and do not necessarily constitute prior art.

[0003] During the production of wire ropes, pre-deformation is required to achieve the purpose of non-loosening, which requires a special device called a pre-deformer. During the process of producing wire ropes, the wire or strand is deformed by the pre-deformer. The pre-deformer is a key process equipment to ensure the quality during the wire rope stranding process. During the process of stranding strands or ropes, while the wire or strand moves in a straight line, the wire and strand are helically wound around the center line of the strand and rope. The wire or strand makes one winding every time it advances one pitch. The role of the pre-deformer is to make the wire or strand produce pre-deformation during the winding process to ensure the quality of the wire rope.

[0004] There are many types of pre-deformers in the prior art. On some small cranes, small-sized wire ropes with a diameter of 6-10 mm are used. However, due to the very small diameter of the wire rope, the pre-deformation parameters during production are very small, resulting in the mechanism of the existing pre-deformer being unable to be adjusted to meet the pre-deformation parameter requirements. Specifically, the following problems will exist. During the use process, the process of adjusting the pressing amount of the pre-deformer is cumbersome; or it is difficult to improve the adjustment accuracy of the pressing amount, it is difficult to make the adjustment amounts of each strand consistent, and it is difficult to make the three-dimensional stress states of each strand the same. In addition, the existing horizontal adjustable pre-deformer is even more unable to adapt to the stranding of small-sized wire ropes, especially wire ropes with a diameter less than 10 mm, and cannot ensure the final stranding quality of the wire rope. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a wire rope pre-deformer, which mainly solves the problem that during the production of small-sized wire ropes with a diameter of 6-10 mm, the pre-deformation parameters cannot be adjusted in place, resulting in poor pre-deformation effect of the wire rope and poor stranding quality of the wire rope. By setting a center distance adjustment mechanism and a pressing amount adjustment mechanism, the upper disk, middle disk, and lower disk can be very thin, which can meet the adjustment requirements of smaller pre-deformation parameters and is suitable for the pre-deformation of small-sized wire ropes.

[0006] In order to achieve the above purpose, the utility model is realized through the following technical solutions:

[0007] In a first aspect, an embodiment of the present utility model provides a wire rope pre-deformer, which includes a threaded main shaft. Upper threads and lower threads are provided on the threaded main shaft, and the pitch of the upper threads is twice that of the lower threads. An upper end plate, a middle plate, a lower end plate, and a worm gear are sequentially installed on the threaded main shaft from top to bottom. The upper end plate is located at the position of the upper threads, the middle plate is located at the position of the lower threads, and both the lower end plate and the worm gear are rotatably connected to the threaded main shaft through copper sleeves. The worm gear is connected to the middle plate through a pin, and the outer circumference of the worm gear is meshed with a worm through a thread.

[0008] As a further technical solution, the worm is fixed on a wire dividing plate, and the wire dividing plate is rotatably connected to the threaded main shaft through a bearing.

[0009] As a further technical solution, a plurality of pins are provided. One end of each pin is fixedly connected to the worm gear, and the other end is fixedly connected to the middle plate.

[0010] As a further technical solution, a plurality of long arc-shaped through holes are provided on the lower end plate. The number of the long arc-shaped through holes is the same as that of the pins, and the pins pass through the long arc-shaped through holes.

[0011] As a further technical solution, a plurality of guide rollers are provided on the circumferences of the upper end plate, the middle plate, and the lower end plate, and the plurality of guide rollers are evenly distributed in the circumferential direction.

[0012] As a further technical solution, a end plate slideway is fixedly connected to the bottom surface of the lower end plate. The end plate slideway is L-shaped, and the end plate slideway is fixedly connected to the guide rollers on the lower end plate and slidably connected to the guide rollers on the upper end plate.

[0013] As a further technical solution, a rectangular through groove is provided at a position corresponding to the upper end plate on the end plate slideway. A slider is provided on the guide roller of the upper end plate, and the slider can slide in the rectangular through groove of the end plate slideway.

[0014] As a further technical solution, a plurality of end plate slideways are provided, and the plurality of end plate slideways are evenly distributed in the circumferential direction.

[0015] As a further technical solution, a hexagonal nut is installed at the upper end of the threaded main shaft, and a limit nut is installed at the lower end.

[0016] As a further technical solution, the threaded main shaft adopts a hollow structure.

[0017] The beneficial effects of the above embodiments of the present utility model are as follows:

[0018] The wire rope pre-deformer provided by the present utility model adopts a threaded main shaft, end plates, a middle plate and a lower end plate to form a center distance adjustment mechanism for adjusting the center distance of wire rope pre-deformation, and adopts a worm gear, a worm and a pin to form a pressing amount adjustment mechanism for adjusting the pressing amount of wire rope pre-deformation. This special center distance adjustment mechanism and pressing amount adjustment mechanism enable the upper plate, middle plate and lower plate to be very thin, which can meet the requirements of adjusting small pre-deformation parameters and is applicable to the pre-deformation of small-sized wire ropes.

[0019] The wire rope pre-deformer provided by the present utility model adopts a threaded main shaft with double pitches. By setting the pitch of the upper thread to be twice that of the lower thread, when adjusting the center distance, both the middle plate and the upper end plate move away from the lower end plate, and the distance that the upper end plate moves is exactly twice that of the middle plate, so as to make the distances between the two end plates and the middle plate equal, improving the accuracy of center distance adjustment.

[0020] The wire rope pre-deformer provided by the present utility model adopts a worm gear and worm mechanism. Utilizing its self-locking function, the adjusted pressing amount will not automatically withdraw, avoiding the problem that the deformation rate of the wire rope gradually becomes smaller during production.

[0021] The wire rope pre-deformer provided by the present utility model is provided with an end plate slideway to connect the upper end plate and the lower end plate, which can ensure that when the threaded main shaft rotates, the upper end plate will not rotate simultaneously with the threaded main shaft, resulting in a change in the distance between the upper end plate and the middle plate, further improving the accuracy of pre-deformation. Description of the Drawings

[0022] The attached drawings forming a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0023] Figure 1 is the overall structural schematic diagram of the wire rope pre-deformer of the present utility model;

[0024] Figure 2 is the top view of the wire rope pre-deformer of the present utility model;

[0025] Figure 3 is Figure 2 the sectional structural schematic diagram at A-A in

[0026] Figure 4 is the structural schematic diagram of the center distance adjustment mechanism of the present utility model;

[0027] Figure 5 is the structural schematic diagram of the pressing amount adjustment mechanism of the present utility model.

[0028] The schematic diagrams are only for illustration;

[0029] Among them, 1. Threaded spindle; 101. Upper thread; 102. Lower thread; 2. Upper end plate; 3. Middle plate; 4. Lower end plate; 401. Long arc-shaped through hole; 5. Worm gear; 6. Worm; 7. Pivot pin; 8. Wire dividing plate; 9. Bearing; 10. Guide roller; 1001. Slide block; 11. End plate slideway; 1101. Rectangular through slot; 12. Hexagonal nut; 13. Limit nut. Specific implementation mode

[0030] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present utility model. Unless otherwise specified, all technical and scientific terms used in the present utility model have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs.

[0031] Embodiment 1

[0032] In a typical implementation mode of the present utility model, as Figures 1-5 shown, a wire rope pre-deformer is provided, including a threaded spindle 1, on which an upper thread 101 and a lower thread 102 are provided, and the pitch of the upper thread 101 is twice the pitch of the lower thread 102; an upper end plate 2, a middle plate 3, a lower end plate 4 and a worm gear 5 are sequentially installed on the threaded spindle 1 from top to bottom. The upper end plate 2 is located at the position of the upper thread 101, the middle plate 3 is located at the position of the lower thread 102, and both the lower end plate 4 and the worm gear 5 are rotatably connected to the threaded spindle 1 through copper sleeves; the worm gear 5 is connected to the middle plate 3 through a pivot pin 7, and the outer circumference of the worm gear 5 is meshed with the worm 6 through a thread.

[0033] Among them, the threaded spindle 1, the upper end plate 2, the middle plate 3 and the lower end plate 4 form a center distance adjustment mechanism. As Figure 4 shown, by using a threaded spindle 1 with double pitch and setting the pitch of the upper thread 101 to be twice the pitch of the lower thread 102, when adjusting the center distance, it can ensure that the distances between the two end plates and the middle plate are equal. At the same time, the lower end plate 4 is rotatably connected to the threaded spindle 1 through a copper sleeve. In this way, when the spindle rotates, the lower end plate 4 remains stationary, and the middle plate 3 and the upper end plate 2 will move away from the lower end plate along with the thread, and the moving distance of the upper end plate 2 is exactly twice that of the middle plate 3 to achieve the equal-distance adjustment between the end plate and the middle plate.

[0034] In this embodiment, the worm 6 is fixed on the wire dividing plate 8, and the wire dividing plate 8 is rotatably connected to the threaded spindle 1 through a bearing 9.

[0035] Furthermore, four pivot pins 7 are provided. One end of each pivot pin 7 is fixedly connected to the worm gear 5, and the other end is fixedly connected to the middle plate 3. Four long arc-shaped through holes 401 are provided on the lower end plate 4, and the pivot pins 7 pass through the long arc-shaped through holes 401; the worm gear 5, the worm 6 and the pivot pins 7 form a pressing amount adjustment mechanism. As Figure 5As shown in the figure, when adjusting the reduction amount, the middle disk 3 needs to rotate appropriately relative to the end disk so that the strand will be bent to form a pre - helix. Therefore, a worm - and - worm - wheel mechanism is adopted in the design. The worm 6 is fixed on the wire dividing disk 8. The worm wheel 5 and the threaded main shaft 1 are connected through a copper sleeve. Four dial pins 7 are arranged on the worm wheel 5. The dial pins 7 pass through the long arc - shaped through - holes 401 of the lower end disk 4 and are connected to the middle disk 3. By rotating the worm 6, the worm wheel 5 drives the middle disk 3 to rotate by 0 - 60° through the dial pins 7, and the adjustment of the reduction amount can be realized. The worm - and - worm - wheel mechanism utilizes its self - locking function, and the adjusted reduction amount will not automatically withdraw, avoiding the problem that the deformation rate of the steel wire rope gradually becomes smaller during production.

[0036] In this embodiment, a plurality of guide rollers 10 are arranged on the circumferences of the upper end disk 2, the middle disk 3 and the lower end disk 4, and the plurality of guide rollers 10 are evenly distributed in the circumferential direction.

[0037] Furthermore, the bottom surface of the lower end disk 4 is fixedly connected with an end - disk slideway 11. The end - disk slideway 11 is L - shaped. The end - disk slideway 11 is fixedly connected with the guide rollers 10 on the lower end disk 4 and is slidably connected with the guide rollers 10 on the upper end disk 2.

[0038] Furthermore, a rectangular through - slot 1101 is arranged at the position of the end - disk slideway 11 corresponding to the upper end disk 2. A slider 1001 is arranged on the guide roller of the upper end disk 2, and the slider 1001 can slide in the rectangular through - slot 1101 of the end - disk slideway 11. By arranging the end - disk slideway 11, it can be ensured that when the threaded main shaft rotates, the upper end disk 2 will not rotate simultaneously with the threaded main shaft 1, resulting in a change in the distance between the upper end disk 2 and the middle disk 3.

[0039] In this embodiment, four end - disk slideways 11 are arranged, and the four end - disk slideways 11 are evenly distributed in the circumferential direction.

[0040] In this embodiment, a hexagonal nut 12 is installed at the upper end of the threaded main shaft 1, and a limit nut 13 is installed at the lower end. By arranging the hexagonal nut 12, it is convenient to rotate the threaded main shaft; by arranging the limit nut 13, while ensuring that the threaded main shaft 1 can rotate easily, it will not be pulled out.

[0041] In this embodiment, the threaded main shaft 1 adopts a hollow structure. One end of the threaded main shaft 1 is the feeding end, and the other end is the discharging end. A strand of wire rope enters from the feeding end of the threaded main shaft 1 and exits from the discharging end of the threaded main shaft 1.

[0042] The usage method of the steel - wire - rope pre - deformer provided by this embodiment is as follows:

[0043] A strand rope enters from the feeding end of the threaded main shaft 1 and exits from the discharging end of the threaded main shaft 1. A number of wire strands sequentially pass through the guide rollers 10 on the circumferences of the lower end plate 4, the middle plate 3, and the upper end plate 2, that is, the guide rollers on the lower end plate 4 and the guide rollers on the upper end plate 2 are both supported on one side of the strand rope, and the guide rollers on the middle plate 3 are supported on the other side of the strand rope. Due to the rotation of the middle plate 3, the strand rope undergoes plastic deformation after passing through the lower end plate 4, the middle plate 3, and the upper end plate 2 in sequence, thus completing the pre-deformation of the strand rope.

[0044] When the center distance needs to be adjusted, only the threaded main shaft 1 needs to be rotated. The lower end plate 4 remains stationary, and the middle plate 3 and the upper end plate 2 will move away from each other as the threads separate. The moving distance of the upper end plate 2 is exactly twice that of the middle plate 3 to achieve the equal-distance adjustment between the end plate and the middle plate; when the pressing amount needs to be adjusted, the worm 6 is rotated, and the worm wheel 5 drives the middle plate 3 to rotate by 0 - 60° through the pin 7, thereby achieving the adjustment of the pressing amount.

[0045] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, various modifications and changes can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A wire rope pre-deformer, characterized in that It includes a threaded spindle, on which upper threads and lower threads are provided, and the pitch of the upper threads is twice that of the lower threads; on the threaded spindle, an upper end plate, a middle plate, a lower end plate and a worm gear are sequentially installed from top to bottom. The upper end plate is located at the position of the upper threads, the middle plate is located at the position of the lower threads, and both the lower end plate and the worm gear are rotatably connected to the threaded spindle through bronze bushings; the worm gear is connected to the middle plate through a dial pin, and the outer circumference of the worm gear is meshed with a worm through threads.

2. The wire rope pre-deformer according to claim 1, wherein, The worm is fixed on a wire dividing plate, and the wire dividing plate is rotatably connected to the threaded spindle through a bearing.

3. The wire rope pre-deformer according to claim 1, wherein, A plurality of the dial pins are provided. One end of each dial pin is fixedly connected to the worm gear, and the other end is fixedly connected to the middle plate.

4. The wire rope pre-deformer according to claim 3, characterized in that, A plurality of long arc-shaped through holes are provided on the lower end plate, and the number of the long arc-shaped through holes is the same as that of the dial pins. The dial pins pass through the long arc-shaped through holes.

5. The wire rope pre-deformer according to claim 1, characterized in that A plurality of guide rollers are provided on the circumferences of the upper end plate, the middle plate and the lower end plate, and the plurality of guide rollers are evenly distributed in the circumferential direction.

6. The wire rope pre-deformer according to claim 5, characterized in that, The bottom surface of the lower end plate is fixedly connected with an end plate slideway. The end plate slideway is L-shaped, and the end plate slideway is fixedly connected with the guide rollers on the lower end plate and is slidably connected with the guide rollers on the upper end plate.

7. The wire rope pre-deformer according to claim 6, characterized in that, A rectangular through slot is provided at the position of the end plate slideway corresponding to the upper end plate. A slider is provided on the guide roller of the upper end plate, and the slider can slide in the rectangular through slot of the end plate slideway.

8. The wire rope pre-deformer according to claim 6, characterized in that A plurality of the end plate slideways are provided, and the plurality of end plate slideways are evenly distributed in the circumferential direction.

9. The wire rope pre-deformer according to claim 1, wherein A hexagonal nut is installed at the upper end of the threaded spindle, and a limit nut is installed at the lower end.

10. The wire rope pre-deformer according to claim 1, characterized in that, The threaded spindle adopts a hollow structure.

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