Pay-off tension device of steel wire rope twisting machine

Abstract

The utility model relates to a pay-off tension device of a steel wire rope twisting machine. The pay-off tension device comprises a single-strand spool, a tension chain, a tension device body and a spool rotating frame. The tension device comprises a tension rod, a spring, a nut, a V-shaped lever, a cam, a tension seat and a moving handle, the V-shaped lever is rotationally connected with the tension seat through a pin shaft, one end of the tension rod is connected with the nut, the other end of the tension rod penetrates through a hole in the V-shaped lever to be connected with a tension chain, and the tension rod between the nut and the V-shaped lever is sleeved with the spring; the cam is rotationally connected with the tension seat through a cam shaft, the other end of the V-shaped lever is arranged at the bottom of the cam and is in contact connection with the cam, one end of the cam shaft is connected with a moving handle, and the cam swings up and down by rotating the moving handle. According to the utility model, the pay-off tension of a single strand can be quickly adjusted to ensure that the pay-off tension is always stable, so that the quality of steel wire rope products is improved, and the labor intensity of operators is reduced.

Description

Technical Field

[0001] The utility model relates to a wire rope stranding machine, in particular to a wire rope stranding machine wire feeding tension device. Background Art

[0002] During the wire rope stranding process, the stability of the single-strand wire feeding tension directly affects the product quality of the wire rope. The single strand is placed into the wire wheel rotating frame, and the operator needs to adjust the single-strand tension multiple times to ensure that the wire feeding tension is always stable. In order to reduce the working intensity of the operator during tension adjustment, it is necessary to optimize the wire feeding tension device during wire rope production. Summary of the Utility Model

[0003] The utility model provides a wire rope stranding machine wire feeding tension device, which can quickly adjust the single-strand wire feeding tension to ensure that the wire feeding tension is always stable, thereby improving the product quality of the wire rope. During the wire rope stranding process, the operator needs to adjust the single-strand tension multiple times, and the utility model can reduce the labor intensity of the operator.

[0004] To achieve the above object, the utility model adopts the following technical solutions:

[0005] A wire rope stranding machine wire feeding tension device, including a single-strand spool, a tension chain, a tension device, and a wire wheel rotating frame. The single-strand spool is installed on the wire wheel rotating frame. One end of the tension chain is connected to the wire wheel rotating frame, and the other end of the tension chain is connected to the tension device. The tension device includes a tension rod, a spring, a nut, a V-shaped lever, a cam, a tension seat, and a handle. The V-shaped lever is rotatably connected to the tension seat through a pin shaft. One end of the tension rod is connected with a nut, and the other end of the tension rod passes through a hole on the V-shaped lever and is connected to the tension chain. The spring is sleeved on the tension rod between the nut and the V-shaped lever. The cam is rotatably connected to the tension seat through a cam shaft. The other end of the V-shaped lever is at the bottom of the cam and is in contact connection with the cam. One end of the cam shaft is connected to the handle, and the up-and-down swing of the cam is realized by rotating the handle.

[0006] The nut is an eccentric nut.

[0007] A limit pin is also fixed on the tension seat, and the limit pin is below the handle.

[0008] The cam is fixedly connected to the cam shaft through a set screw.

[0009] The handle is fixedly connected to the cam shaft through a cylindrical pin.

[0010] The part of the tension rod passing through the V-shaped lever is a square rod, and the hole on the V-shaped lever for cooperating with the tension rod is a square hole.

[0011] Compared with the existing technology, the beneficial effects of the utility model are:

[0012] 1) The eccentric nut is an eccentric structure, which limits its rotation on the tension rod by gravity to achieve the purpose of self-locking. Indirectly ensure the stability of the pay-off tension.

[0013] 2) The V-shaped lever is locked by the cam to achieve quick release and preset pay-off tension.

[0014] 3) When the wire rope twisting machine is in production, it is necessary to adjust the pay-off tension of the single-strand I-shaped wheel 2-3 times. Using this method to adjust the pay-off tension can reduce the labor intensity of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the overall layout diagram of the utility model.

[0016] Figure 2 It is an axonometric drawing of the utility model.

[0017] Figure 3 It is an explosion schematic diagram of the utility model.

[0018] Figure 4 It is an operation schematic diagram of the utility model.

[0019] In the figure: 1. tension device, 2. reel tumbler, 3. tension chain, 4. fixed pin, 5. single-strand I-shaped wheel, 11. handle sleeve, 12. handle, 13. tension seat, 14. limit pin, 15. cylindrical pin, 16. camshaft, 17. cotter pin, 18. pin, 19. tension rod, 20. V-type lever, 21. spring, 22. nut, 23. set screw, 24. cam. DETAILED DESCRIPTION

[0020] The following is a further description of the implementation of the present invention in conjunction with specific embodiments:

[0021] like Figures 1-4As shown in the figure, a wire rope stranding machine wire pay-off tension device, including a single-strand spool 5, a tension chain 3, a tension device 1, and a wire wheel rotating frame 2. The single-strand spool 5 is installed on the wire wheel rotating frame 2. One end of the tension chain 3 is connected to the wire wheel rotating frame 2, and the other end of the tension chain 3 is connected to the tension device 1. The tension device 1 includes a tension rod 19, a spring 21, a nut 22, a V-shaped lever 20, a cam 24, a tension seat 13, and a handle 12. The V-shaped lever 20 is rotatably connected to the tension seat 13 through a pin shaft 18. One end of the tension rod 19 is connected with a nut 22, and the other end of the tension rod 19 passes through a hole on the V-shaped lever 20 to connect the tension chain 3. The spring 21 is sleeved on the tension rod 19 between the nut 22 and the V-shaped lever 20. The cam 24 is rotatably connected to the tension seat 13 through a cam shaft 16. The other end of the V-shaped lever 20 is at the bottom of the cam 24 and is in contact connection with the cam 24. One end of the cam shaft 16 is connected to the handle 12, and the up-and-down swing of the cam 24 is realized by rotating the handle 12.

[0022] The nut 22 is an eccentric nut.

[0023] A limit pin 14 is also fixed on the tension seat 13, and the limit pin 14 is below the handle 12.

[0024] The cam 24 is fixedly connected to the cam shaft 16 through a set screw 23.

[0025] The handle 12 is fixedly connected to the cam shaft 16 through a cylindrical pin 15.

[0026] The part of the tension rod 19 passing through and connecting with the V-shaped lever 20 is a square rod, and the hole on the V-shaped lever 20 for cooperating with the tension rod 19 to pass through is a square hole.

[0027] See Figure 1 , the tension device 1 is fixed on the wire wheel rotating frame 2. One end of the tension chain 3 is fixed on the tension device 1, and the other end is fixed on the wire wheel rotating frame 2 through a fixed pin shaft 4. The single-strand spool 5 makes a rotary motion on the wire wheel rotating frame 2 to complete single-strand wire pay-off. The tension chain 3 gives a certain damping force to the single-strand spool 5, which is converted into single-strand wire pay-off tension.

[0028] See Figure 2 、 Figure 3 , a handle sleeve 11 is fixed on the handle 12, and the handle 12 is fixed on the cam shaft 16 through a cylindrical pin 15. The cam 24 is fixed on the cam shaft 16 through a set screw 23, and the handle 12 and the cam 24 can rotate together on the tension seat 13.

[0029] The V-shaped lever 20 is mounted on the tension seat 13 through the pin shaft 18, and the V-shaped lever 20 can rotate slightly around the pin shaft 18. The pin shaft 18 is equipped with a split pin 17 and is fixed on the tension seat 13. The spring 21 is sleeved on the tension rod 19, and the spring 21 can slide on the tension rod 19. The nut 22 is fixed on the tension rod 19 by threads. By adjusting the position between the nut 22 and the V-shaped lever 20, the spring 21 can be compressed and released.

[0030] The nut 22 has an eccentric structure and restricts its own rotation on the tension rod 19 by gravity to achieve the purpose of self-locking.

[0031] The limit pin 14 is fixed on the tension seat 13 to limit the counterclockwise rotation of the handle 12.

[0032] An adjustment method for the wire releasing tension device of a wire rope stranding machine specifically includes the following contents:

[0033] 1) After the single-strand spool 5 is installed in the spool rotating frame 2, the operator rotates the handle 12 counterclockwise, driving the cam 24 to press the V-shaped lever 20 and tension the tension chain 3. As shown, when the cam 24 is locked counterclockwise, it rotates more than 10 degrees beyond the dead point. Due to the limit pin 14, the cam 24 and the V-shaped lever 20 will not continue to rotate counterclockwise. Due to the pre-tightening force of the tension chain 3, the cam 24 and the V-shaped lever 20 will not return to the dead point and rotate clockwise. At this time, the cam 24 and the V-shaped lever 20 are in a locked state. Figure 4 As shown, when the cam 24 is locked counterclockwise, it rotates more than 10 degrees beyond the dead point. Because of the limit pin 14, the cam 24 and the V-shaped lever 20 will not continue to rotate counterclockwise. Because of the pre-tightening force of the tension chain 3, the cam 24 and the V-shaped lever 20 will not return to the dead point and rotate clockwise. At this time, the cam 24 and the V-shaped lever 20 are in a locked state.

[0034] 2) By adjusting the position between the nut 22 and the V-shaped lever 20, the spring 21 can be compressed and released, thereby affecting the pre-tightening force of the tension chain 3 and ultimately affecting the wire releasing tension of the single-strand spool 5. Adjust the nut 22 to preset the wire releasing tension of the single-strand spool 5.

[0035] 3) Using a tension detector, stretch the single strand of the wire rope to detect the wire releasing tension of the single-strand spool 5. At this time, the stretched single strand of the wire rope needs to be retracted back onto the single-strand spool 5.

[0036] 4) The operator rotates the handle 12 clockwise, and the cam 24 rotates together. At this time, the V-shaped lever 20 is unlocked, the tension chain 3 is in a relaxed state, and the wire releasing tension of the spool 5 is reduced to the minimum. The operator rotates the single-strand spool 5 to retract the single strand of the wire rope back onto the single-strand spool 5.

[0037] 5) The operator rotates the handle 12 counterclockwise, driving the cam 24 to press the V-shaped lever 20 and tension the tension chain 3.

[0038] 6) Repeat steps 2) to 5) until the wire releasing tension of the single-strand spool 5 is set within the production standard range, and then start the machine for normal production.

[0039] 7) When the wire rope twisting machine is in production, it is necessary to adjust the pay-off tension of the single-strand spool 5 2-3 times. After the planned shutdown, it is necessary to repeat steps 2) to 5) until the pay-off tension of the single-strand spool 5 is set within the production standard range.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wire rope twisting machine pay-off tension device, comprising a single-strand I-shaped wheel, a tension chain, a tension device, and a wire wheel turret, wherein the single-strand I-shaped wheel is mounted on the wire wheel turret, one end of the tension chain is connected to the wire wheel turret, and the other end of the tension chain is connected to the tension device; characterized in that: The tension device includes a tension rod, a spring, a nut, a V-shaped lever, a cam, a tension seat, and a handle. The V-shaped lever is rotatably connected to the tension seat via a pin shaft, one end of the tension rod is connected to a nut, the other end of the tension rod passes through a hole on the V-shaped lever and is connected to a tension chain, the spring is sleeved on the tension rod between the nut and the V-shaped lever, the cam is rotatably connected to the tension seat via a camshaft, the other end of the V-shaped lever is at the bottom of the cam and is contact-connected to the cam, one end of the camshaft is connected to the handle and the cam is swung up and down by rotating the handle.

2. A wire rope twisting machine pay-off tension device according to claim 1, characterized in that: The nut is an eccentric nut.

3. A wire rope twisting machine pay-off tension device according to claim 1, characterized in that: A limit pin is also fixed on the tension seat, and the limit pin is below the handle.

4. A wire rope twisting machine pay-off tension device according to claim 1, characterized in that: The cam is fixedly connected to the camshaft via a set screw.

5. A wire rope laying tension device for a wire rope twisting machine according to claim 1, characterized in that: The handle is fixedly connected to the camshaft via a cylindrical pin.

6. A wire rope twisting machine pay-off tension device according to claim 1, characterized in that: The portion where the tension rod and the V-shaped lever are connected is a square rod, and the hole on the V-shaped lever where the tension rod is connected is a square hole.

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