Rapid locking device for spool of steel cord stranding machine

Abstract

The utility model discloses a steel cord stranding machine spool fast locking device which comprises a rotating shaft, a locking shaft is coaxially arranged at one end of the rotating shaft, the diameter of the locking shaft is smaller than that of the rotating shaft, and an inner abutting sleeve is arranged on the locking shaft. The maximum diameter of the inner abutting sleeve is consistent with the diameter of the rotating shaft, the inner abutting sleeve and the rotating shaft are jointly supported in a wheel cylinder of the spool, a first circular ring is arranged at the end, away from the rotating shaft, of the inner abutting sleeve, an inserting piece is arranged on the first circular ring, one end of the inserting piece is inserted into a pin hole in a spool disc, and the other end of the inserting piece is inserted into a pin hole in the spool disc. And a limiting mechanism for limiting the axial movement of the inner abutting sleeve on the locking shaft is arranged at one end, far away from the rotating shaft, of the inner abutting sleeve. According to the spool locking device, the spool can be stably locked, the dismounting is fast, the time consumed for mounting and replacing the spool is effectively shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel cord production, in particular to an I-shaped wheel quick locking device for a steel cord stranding machine. Background Art

[0002] Steel cord is a steel cord with a diameter of 1.5-3mm, which is made of multiple or multiple strands of high-carbon copper-plated steel wires with a diameter of 0.13-0.33mm. The machine used to twist the steel wire into a rope is called a stranding machine, and the steel wire used for the rope is wound on an iron I-shaped wheel.

[0003] The stranding machine usually needs multiple I-shaped wheels for unwinding during the stranding process. The I-shaped wheels are installed on the unwinding shaft of the stranding machine through the shaft. A bearing seat is provided on one side of the shaft, and a detachable limiter is provided on the other side. The limiter and the bearing seat cooperate to enable the I-shaped wheels to rotate synchronously and stably with the shaft. At present, the limiter is generally locked by the bolts and nuts on the shaft. In order to prevent the nut and the bolt from rotating relative to each other during the high-speed rotation of the stranding, a cotter pin is inserted into the nut slot and the tail hole of the bolt, and the tail is opened to fix it. It takes a long time to install and replace the I-shaped wheels, and the disassembly is cumbersome, which affects production efficiency. Utility Model Content

[0004] The utility model aims to provide a quick locking device for an I-shaped wheel of a steel cord stranding machine, which can stably lock the I-shaped wheel and is quick to disassemble, effectively reducing the time spent on installing and replacing the I-shaped wheel and improving production efficiency.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a quick locking device for the I-shaped wheel of a steel cord twisting machine, comprising a rotating shaft, a locking shaft is coaxially provided at one end of the rotating shaft, the diameter of the locking shaft is smaller than the diameter of the rotating shaft and an inner sleeve is provided thereon, the maximum diameter of the inner sleeve is consistent with the diameter of the rotating shaft and the two are jointly supported from the wheel barrel of the I-shaped wheel, a first ring is provided at the end of the inner sleeve away from the rotating shaft, a connector is provided on the first ring, one end of the connector is plugged into the pin hole on the I-shaped wheel disc, and a limiting mechanism is provided at the end of the inner sleeve away from the rotating shaft to limit its axial movement on the locking shaft.

[0006] A further improvement of the utility model is that the locking shaft includes a cylindrical section and a synchronization section, and at least one pair of parallel surfaces are symmetrically provided on the circumferential surface of the synchronization section, and the lower end of the inner opening of the inner sleeve is detachably and fixedly connected with two rotation limit blocks matching the relative parallel surfaces.

[0007] A further improvement of the utility model is that a V-shaped groove is provided on the circumference of the cylindrical section, and the limiting mechanism includes a lock hollow shaft and a lock sliding sleeve sleeved on the lock hollow shaft, the lock hollow shaft is slidably connected between the cylindrical section and the inner sleeve and is provided with an abutment member thereon, one end of the abutment member abuts against the inner wall of the lock sliding sleeve, and the other end abuts into the V-shaped groove.

[0008] A further improvement of the utility model is that a plurality of ball mounting holes are circumferentially spaced on the shaft wall of the hollow shaft of the lock head, the abutment members are balls arranged in the ball mounting holes, and the diameter of the balls is greater than the thickness of the shaft wall.

[0009] A further improved solution of the utility model is that a clamping groove is provided on the outer wall of the lock hollow shaft, and a clamping piece matching with the clamping groove is provided on the lock sliding sleeve.

[0010] A further improvement of the utility model is that the clamping member includes two second circular rings coaxially arranged on the lock sleeve, a butt plate is rotatably provided between the two second circular rings, one end of the butt plate can abut against the slot, a support block is provided on one side of the butt plate, a first spring is provided between the support block and the other end of the butt plate, and the first spring makes the butt plate tend to move away from the support block.

[0011] A further improvement of the utility model is that one end of the inner sleeve is coaxially provided with a step hole with a first ring, and the outer circumference of the hollow shaft of the lock is provided with a third ring, the diameter of the third ring is larger than the inner diameter of the inner sleeve and smaller than the diameter of the step hole, a gasket is provided between the third ring and the step surface of the step hole, and one end of the lock sleeve is tightly pressed against the third ring.

[0012] A further improvement of the utility model is that the connector includes a pin pulling sleeve arranged on the first ring, a pin pulling sleeve is slidably connected with a pin pulling pin inserted into a pin hole on the I-shaped wheel disc, a baffle is provided in the pin pulling sleeve and on the side of the pin pulling pin away from the I-shaped wheel, a second spring is provided between the baffle and the pin, and the second spring makes the pin pulling pin have a tendency to move away from the baffle.

[0013] A further improvement of the utility model is that an annular groove is provided on the inner wall of the step hole, a first retaining ring is provided in the annular groove, and a claw of the first retaining ring abuts against the lock sleeve.

[0014] A further improvement of the present invention is that an annular groove is provided on the hollow shaft of the lock head at one end of the locking groove away from the inner abutment sleeve, and a second retaining ring is provided in the annular groove.

[0015] The beneficial effects of the utility model are:

[0016] The utility model adopts the inner abutment sleeve, the plug-in component and the limit mechanism, and the pin hole on the I-shaped wheel is positioned by the plug-in component, so the I-shaped wheel can be stably locked and disassembled quickly, which effectively reduces the time consumed in installing and replacing the I-shaped wheel and improves production efficiency.

[0017] The locking shaft of the utility model comprises a cylindrical section and a synchronous section, at least one pair of parallel surfaces are symmetrically arranged on the circumferential surface of the synchronous section, and the lower end of the inner opening of the inner sleeve is detachably and fixedly connected with two rotation limiting blocks which match the relative parallel surfaces. The parallel surfaces and the rotation limiting blocks prevent the inner sleeve and the locking shaft from rotating relative to each other, so that the inner sleeve can rotate synchronously with the locking shaft.

[0018] The utility model discloses a hollow shaft of a lock head, wherein a plurality of ball mounting holes are arranged at intervals in the circumferential direction on the shaft wall, and a ball with a diameter larger than the thickness of the shaft wall is arranged in the ball mounting hole, which is slidably connected to the hollow shaft of the lock head through a lock sleeve, and the part of the ball protruding from the outside of the ball mounting hole is squeezed through the lock sleeve to make it exposed from the inside of the ball mounting hole, and the exposed part on the inside is stuck in the V-shaped groove to complete the limiting. When disassembly is required, the limiting of the ball from the outside of the ball mounting hole is released, and then the hollow shaft of the lock head is lifted and pulled, and the ball moves through the inclined surface of the V-shaped groove, thereby disengaging from the V-shaped groove 11 and releasing the connection between the hollow shaft of the lock head and the locking shaft 2, so that the connection is fast and the fixing is firm.

[0019] The limiting mechanism of the utility model is easy to assemble and disassemble, and replaces the traditional fixing method of nuts, bolts and cotter pins, which not only reduces the failure rate and prolongs the service life, but also improves the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a cross-sectional schematic diagram of the limiting mechanism of the utility model.

[0021] Figure 2 It is a schematic diagram of the structure of the utility model.

[0022] Figure 3 This is a schematic diagram of the position relationship after the I-shaped wheel is installed in the utility model.

[0023] Figure 4 The utility model is a schematic cross-sectional view of the structure after the I-shaped wheel is installed.

[0024] Figure 5 This is a schematic diagram of the locking shaft structure of the utility model.

[0025] Figure 6 It is a schematic diagram of the position relationship between the synchronization section and the rotation limiting block of the utility model.

[0026] Figure 7 This is a schematic diagram of the structure of the clamping piece of the utility model.

[0027] Figure 8 This is a schematic diagram of the structure of the plug connector of the utility model.

[0028] In the figure, 1-rotating shaft, 2-locking shaft, 3-inner push sleeve, 4-I-wheel, 5-first circular ring, 6-connector, 7-cylindrical section, 8-synchronizing section, 9-parallel surface, 10-rotation limit block, 11-V-groove, 12-lock hollow shaft, 13-lock sliding sleeve, 14-ball, 15-slot, 16-second circular ring, 17-pull plate, 18-support block, 19-first spring, 20-step hole, 21-third circular ring, 22-washer, 23-pin pull sleeve, 24-pin pull, 25-blocking plate, 26-second spring, 27-first retaining spring retaining ring, 28-second retaining spring retaining ring. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0030] Example 1: Combination Figures 1 to 8 It can be seen that a quick locking device for an I-shaped wheel of a steel cord twisting machine includes a rotating shaft 1, a locking shaft 2 is coaxially provided at one end of the rotating shaft 1, the diameter of the locking shaft 2 is smaller than the diameter of the rotating shaft 1 and an inner sleeve 3 is provided thereon, the maximum diameter of the inner sleeve 3 is consistent with the diameter of the rotating shaft 1 and the two are jointly supported from the wheel barrel of the I-shaped wheel 4, a first ring 5 is provided at the end of the inner sleeve 3 away from the rotating shaft 1, a connector 6 is provided on the first ring 5, one end of the connector 6 is plugged into the pin hole on the wheel disc of the I-shaped wheel 4, and a limiting mechanism for limiting its axial movement on the locking shaft 2 is provided at the end of the inner sleeve 3 away from the rotating shaft 1.

[0031] The locking shaft 2 includes a cylindrical section 7 and a synchronization section 8. At least one pair of parallel surfaces 9 are symmetrically arranged on the circumferential surface of the synchronization section 8. The lower end of the inner opening of the inner sleeve 3 is detachably fixedly connected with two rotation limit blocks 10 that match the relative parallel surfaces 9. Preferably, the rotation limit block 10 is a rectangular nylon block, which is fixed to the lower end of the inner sleeve 3 by bolts. By matching one pair of parallel surfaces 9 on the synchronization section 8 with the relative surfaces of the two rotation limit blocks 10, the inner sleeve 3 can rotate synchronously with the locking shaft 2 when it rotates. Preferably, there are two pairs of parallel surfaces 9, a total of four surfaces, and the angle between adjacent parallel surfaces is 90°.

[0032] A V-shaped groove 11 is provided on the cylindrical section 7 in the circumferential direction. The limiting mechanism includes a lock hollow shaft 12 and a lock sliding sleeve 13 sleeved on the lock hollow shaft 12. The lock hollow shaft 12 is slidably connected between the cylindrical section 7 and the inner abutment sleeve 3 and is provided with an abutment member thereon. One end of the abutment member abuts against the inner wall of the lock sliding sleeve 13, and the other end abuts into the V-shaped groove 11.

[0033] The shaft wall of the lock hollow shaft 12 is provided with a plurality of ball mounting holes at intervals in the circumferential direction, and the abutment member is a ball 14 arranged in the ball mounting hole, and the diameter of the ball 14 is greater than the thickness of the shaft wall. The ball mounting hole is coated with grease. Preferably, there are 6 ball mounting holes.

[0034] When the lock sleeve 13 slides on the lock hollow shaft 12, the lock sleeve 13 squeezes the portion of the ball 14 protruding from the outside of the ball installation hole so that it is exposed from the inside of the ball installation hole, and the exposed portion on the inside is inserted into the V-shaped groove 11 to complete the limit. When the lock hollow shaft 12 needs to be removed, the lock sleeve 13 needs to be removed first to release the limit on the ball 14 from the outside of the ball installation hole, and then the lock hollow shaft 12 is lifted, and the ball 14 moves through the inclined surface of the V-shaped groove 11, thereby disengaging from the V-shaped groove 11 and releasing the connection between the lock hollow shaft 12 and the locking shaft 2.

[0035] A card slot 15 is provided on the outer wall of the lock hollow shaft 12, and a card connector matching the card slot 15 is provided on the lock sliding sleeve 13. Preferably, two card slots 15 are provided, symmetrically arranged on the outer wall of the lock hollow shaft 12. Two card connectors are also provided.

[0036] The clamping member includes two second rings 16 coaxially arranged on the lock sleeve 13, a butt piece 17 is rotatably arranged between the two second rings 16, one end of the butt piece 17 can abut against the slot 15, a support block 18 is arranged on one side of the butt piece 17, a first spring 19 is arranged between the support block 18 and the other end of the butt piece 17, and the first spring 19 makes the butt piece 17 have a tendency to move away from the support block 18. Preferably, the second ring 16 is provided with an escape opening for manually pressing the support block 18.

[0037] The inner sleeve 3 is provided with a step hole 20 coaxially at one end of the first ring 5, and a third ring 21 is provided on the outer periphery of the hollow shaft 12 of the lock. The diameter of the third ring 21 is larger than the inner diameter of the inner sleeve 3 and smaller than the diameter of the step hole 20. A gasket 22 is provided between the third ring 21 and the step surface of the step hole 20, and one end of the lock sleeve 13 is tightly pressed against the third ring 21.

[0038] The plug-in connector 6 includes a pin pulling sleeve 23 arranged on the first ring 5, and a pin pulling pin 24 inserted into the pin hole on the wheel disc of the I-shaped wheel 4 is slidably connected inside the pin pulling sleeve 23. A baffle 25 is provided inside the pin pulling sleeve 23 and on the side of the pin pulling pin 24 away from the I-shaped wheel 4. A second spring 26 is provided between the baffle 25 and the pin pulling pin 24. The second spring 26 makes the pin pulling pin 24 have a tendency to move away from the baffle 25.

[0039] An annular groove is provided on the inner wall of the step hole 20 , and a first retaining ring 27 is provided in the annular groove. The claws of the first retaining ring 27 abut against the lock sleeve 13 .

[0040] An annular groove is provided on the lock hollow shaft 12 at one end of the locking groove 15 away from the inner abutment sleeve 3 , and a second retaining ring 28 is provided in the annular groove.

[0041] The working principle of the I-shaped wheel quick locking device of the steel cord stranding machine provided by the utility model is as follows:

[0042] First, the inner sleeve 3 is sleeved on the locking shaft 2, and the rotation limit block 10 of the inner sleeve 3 cooperates with the synchronization section 8 of the locking shaft 2 so that the two will not rotate relative to each other. Then, the I-shaped wheel 4 is installed, so that the rotating shaft 1 and the inner sleeve 3 are supported from the wheel barrel of the I-shaped wheel 4. The I-shaped wheel 4 is adjusted so that the pin 24 is inserted into the pin hole on the I-shaped wheel 4 to limit the relative displacement between the I-shaped wheel 4 and the inner sleeve 3. Next, the lock hollow shaft 12 is inserted into the inner sleeve 3, and the washer 22 and the first retaining ring 27 are sequentially put on to connect the lock hollow shaft 12 with the inner sleeve 3. Then, the lock sleeve 13 is slidably connected to the outside of the lock hollow shaft 12, and the lock sleeve 13 pushes the ball 14 on the lock hollow shaft 12 into the V-shaped groove 11 on the locking shaft 2, and then the push piece 17 is turned to make the push piece 17 of the lock sleeve 13 snap into the groove 15 on the upper part of the lock hollow shaft 12, thereby fixing the lock sleeve 13 and the lock hollow shaft 12, and finally, tighten the second retaining ring 28 to ensure that the lock sleeve 13, the lock hollow shaft 12 and the locking shaft 2 are connected as a whole.

[0043] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. Any equivalent structure or equivalent process transformation made using the contents of the utility model specification and the accompanying drawings, or directly or indirectly used in other related technical fields, are similarly included in the patent protection scope of the present utility model.

Claims

1. A quick locking device for an I-shaped wheel of a steel cord stranding machine, characterized in that: The invention comprises a rotating shaft (1), one end of which is coaxially provided with a locking shaft (2), the diameter of the locking shaft (2) being smaller than the diameter of the rotating shaft (1) and an inner sleeve (3) being provided thereon, the maximum diameter of the inner sleeve (3) being consistent with the diameter of the rotating shaft (1) and the two being supported together from the inside of the wheel barrel of an I-shaped wheel (4), the end of the inner sleeve (3) away from the rotating shaft (1) being provided with a first ring (5), the first ring (5) being provided with a plug-in component (6), one end of the plug-in component (6) being plugged into a pin hole on a wheel disc of the I-shaped wheel (4), and the end of the inner sleeve (3) away from the rotating shaft (1) being provided with a limiting mechanism for limiting its axial movement on the locking shaft (2).

2. The I-shaped pulley quick locking device for a steel cord stranding machine according to claim 1, characterized in that: The locking shaft (2) comprises a cylindrical section (7) and a synchronous section (8), at least one pair of parallel surfaces (9) being symmetrically provided on the circumferential surface of the synchronous section (8), and two rotation limiting blocks (10) matching the opposite parallel surfaces (9) are detachably and fixedly connected to the lower end of the inner opening of the inner abutment sleeve (3).

3. The I-shaped pulley quick locking device for a steel cord stranding machine according to claim 2, characterized in that: A V-shaped groove (11) is circumferentially provided on the cylindrical section (7); the limiting mechanism comprises a lock hollow shaft (12) and a lock sliding sleeve (13) sleeved on the lock hollow shaft (12); the lock hollow shaft (12) is slidably connected between the cylindrical section (7) and the inner abutment sleeve (3) and is provided with an abutment member, one end of the abutment member abuts against the inner wall of the lock sliding sleeve (13) and the other end abuts into the V-shaped groove (11).

4. The I-shaped pulley quick locking device for a steel cord stranding machine according to claim 3, characterized in that: A plurality of ball mounting holes are provided at intervals in the circumferential direction on the shaft wall of the lock hollow shaft (12); the abutment member is a ball (14) arranged in the ball mounting hole; and the diameter of the ball (14) is greater than the thickness of the shaft wall.

5. The I-shaped pulley quick locking device for a steel cord stranding machine according to claim 3, characterized in that: A clamping groove (15) is provided on the outer wall of the lock hollow shaft (12), and a clamping piece matching the clamping groove (15) is provided on the lock sliding sleeve (13).

6. The I-shaped pulley quick locking device for a steel cord stranding machine according to claim 5, characterized in that: The clamping member comprises two second circular rings (16) coaxially arranged on the lock sleeve (13); a butt piece (17) is rotatably arranged between the two second circular rings (16); one end of the butt piece (17) is capable of butting against the clamping groove (15); a support block (18) is arranged on one side of the butt piece (17); a first spring (19) is arranged between the support block (18) and the other end of the butt piece (17); the first spring (19) causes the butt piece (17) to have a tendency to move away from the support block (18).

7. The I-shaped pulley quick locking device for a steel cord stranding machine according to claim 3, characterized in that: The inner abutment sleeve (3) is provided with a first circular ring (5) and one end thereof is coaxially provided with a step hole (20); a third circular ring (21) is provided on the outer circumference of the hollow shaft (12) of the lock head; the diameter of the third circular ring (21) is larger than the inner diameter of the inner abutment sleeve (3) and smaller than the diameter of the step hole (20); a washer (22) is provided between the third circular ring (21) and the step surface of the step hole (20); and one end of the lock head sliding sleeve (13) is tightly pressed against the third circular ring (21).

8. The I-shaped pulley quick locking device for a steel cord stranding machine according to claim 1, characterized in that: The plug-in connector (6) comprises a pin-pulling sleeve (23) arranged on the first circular ring (5), a pin-pulling sleeve (23) having a pin-pulling pin (24) inserted into a pin hole on a wheel disc of the spool wheel (4) slidably connected therein, a baffle (25) being arranged in the pin-pulling sleeve (23) on a side of the pin-pulling pin (24) away from the spool wheel (4), a second spring (26) being arranged between the baffle (25) and the pin-pulling pin (24), the second spring (26) causing the pin-pulling pin (24) to tend to move away from the baffle (25).

9. The I-shaped pulley quick locking device for a steel cord stranding machine according to claim 7, characterized in that: An annular groove is provided on the inner wall of the step hole (20), a first retaining ring (27) is provided in the annular groove, and a claw of the first retaining ring (27) abuts against the lock sleeve (13).

10. The I-shaped pulley quick locking device for a steel cord stranding machine according to claim 6, characterized in that: An annular groove is provided on the lock head hollow shaft (12) at one end of the locking groove (15) away from the inner abutment sleeve (3), and a second retaining ring (28) is provided in the annular groove.

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