Double-folded line rope groove hydraulic winch

Abstract

The utility model relates to hydraulic winch technical field especially a kind of double-fold line rope groove hydraulic winch, including the reel with double-fold line rope groove, reel chuck is coaxially fixed in the right end of reel, reel sleeve is connected on the outer lateral wall of a inner drum and realizes spline connection with it, reel chuck is coaxially fixed in the left end of the inner drum, reel and reel chuck cooperate to form detachable reel unit, connecting flange plate is respectively fixedly connected in the left and right ends of reel unit, split main shaft is respectively fixed in the center of the outer end surface of each connecting flange plate, the split main shaft in right side is used to connect hydraulic drive motor. The utility model is connected with the spline connection structure of reel and inner drum by adopting reel with double-fold line rope groove, and cooperate reel chuck to form detachable reel unit, when needing to adapt the working condition of different diameter steel wire rope or different traction load, reel replacement can be completed without disassembling integral transmission structure.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic winch technology, and in particular to a double-folded rope groove hydraulic winch. Background Technology

[0002] Hydraulic winches, as heavy lifting or traction equipment powered by hydraulics, are widely used in mining, engineering machinery, shipping, oil drilling and other fields. Their core working component is the drum, and the rope groove structure on the surface of the drum directly determines the rope laying effect, wear degree and overall service life and operational safety of the wire rope.

[0003] For example, patent document CN202022829653.4 discloses a simple cable winding winch device. The drum device is the basic mounting seat for the cable in the entire cable winding mechanism. The first stop bar has a variable cross section and is used to change the winding angle on one side of the cable by pressing it with the cable. It is pressed tightly against the surface of the drum by tension. The second stop bar has a variable cross section and is used to change the winding angle on one side of the cable by pressing it with the cable. The first adjusting shim is connected to the flange side of the drum by screws and is used to adjust the initial position on one side of the cable. The second adjusting shim is connected to the flange side of the drum by screws and is used to adjust the initial position on one side of the cable. The cable can obtain a double zigzag groove at the bottom of the drum device.

[0004] As can be seen from the above description, it has the following drawbacks when used: First, in the above solution, the stop bar relies solely on the tension of the rope itself for positioning and does not have an independent quick adjustment mechanism. When problems such as rope jamming or tangling occur, the rope tension must be released first, and then the stop bar can be pried or the adjustment pad can be disassembled to reset it. The whole process is cumbersome and time-consuming.

[0005] Secondly, the drum equipment and the main body of the winch in the solution are fixedly connected. When the operation requires changing to ropes of different diameters and lengths, it is impossible to meet the requirements by changing to a drum of the appropriate specifications. The only option is to replace the entire winch device or modify the original drum. This fixed structure greatly limits the adaptability of the equipment. In multi-condition alternating operation scenarios such as mines and ships, it will increase the equipment investment cost and reduce the flexibility of operation.

[0006] Therefore, it is necessary to design a hydraulic winch with a convenient double-folded rope groove. Utility Model Content

[0007] To solve one of the aforementioned technical problems, the present invention provides the following technical solution: a double-groove rope hydraulic winch, comprising a drum with double-groove ropes, the surface of which is used for winding steel wire rope; a drum stop plate is coaxially fixed to the right end of the drum; the drum is sleeved on the outer wall of an inner drum and splined thereto; a drum stop plate is coaxially fixed to the left end of the inner drum; the drum stop plate cooperates with the drum stop plate to achieve lateral blocking of the steel wire rope wound on the drum; the drum and the drum stop plate together form a detachable mechanism. The drum unit has connecting flanges fixedly connected to its left and right ends respectively. Bearing seats are symmetrically arranged on the outer side of each connecting flange. The bottom of each bearing seat is quickly fixed to the base below it. The outer end of each connecting flange moves through the shaft hole of the bearing seat at its corresponding position. A split spindle is fixed at the center of the outer end face of each connecting flange. The split spindle on the left side is used to connect to an external brake, and the split spindle on the right side is used to connect to a hydraulic drive motor.

[0008] Based on any of the above technical solutions, a further optimization is made as follows: a spline is integrally formed on the outer side wall of the inner rotating drum, and a spline groove that mates with the spline is provided on the inner side wall of the drum.

[0009] Based on any of the above technical solutions, a further optimization is made: the left end face of the drum abuts against the right end face of the rotating drum baffle.

[0010] Based on any of the above technical solutions, a further optimization is made by providing an adjusting rope presser above the drum.

[0011] Based on any of the above technical solutions, a further optimization is made as follows: the adjusting rope presser includes a rope presser roller horizontally arranged above the drum. The two ends of the central shaft of the rope presser roller are respectively movably inserted into the rotating holes of the support frame on its corresponding side. The outer ends of each support frame are vertically folded downward and fixedly connected to the top of the piston rod of the lifting cylinder at its corresponding position. The bottom of each lifting cylinder is fixed to the top of the bearing seat at its corresponding position. The two lifting cylinders are in a synchronous lifting state during operation.

[0012] Based on any of the above technical solutions, a further optimization is made: the two lifting cylinders drive the corresponding two support frames and the rope pressing rollers to lift and lower synchronously.

[0013] Based on any of the above technical solutions, a further optimization is made: the housing of the hydraulic drive motor is fixed relative to the base.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model adopts a spline connection structure between a drum with double-folded rope grooves and an inner rotating drum, and forms a detachable drum unit with a rotating drum baffle. At the same time, it is equipped with a quick-release fixing design for the bearing seat and the base, which realizes the rapid replacement of the drum. When it is necessary to adapt to working conditions with different diameter wire ropes or different traction loads, the drum can be replaced without disassembling the overall transmission structure, which greatly improves the flexibility of equipment to adapt to working conditions and maintenance efficiency.

[0015] 2. This utility model, by setting an adjusting rope presser above the drum, consisting of a rope presser roller, a support frame, and a synchronous lifting cylinder, combined with the double-folded rope groove structure of the drum, ensures the regularity of the interlayer arrangement of the wire rope during winding and unwinding by utilizing the trajectory guidance effect of the double-folded rope groove. On the other hand, the synchronous lifting cylinder drives the rope presser roller to apply constant radial pressure to the wire rope, which not only avoids rope jumping during high-speed winding and unwinding, but also allows for quick retraction and pressure release for adjustment when the rope gets stuck. This effectively reduces the wear rate of the wire rope and reduces the time required to handle rope jamming faults.

[0016] 3. This utility model adopts a tight fit structure between the left end face of the drum and the right end face of the drum baffle, combined with the axial positioning design of the connecting flange and bearing seat, and the rigid fixing structure of the hydraulic drive motor housing and the base, forming a stable axial force transmission and distribution path. At the same time, the motor output shaft and the split main shaft are connected by an elastic coupling, which offsets the influence of installation errors on power transmission. This not only improves the coaxiality and stability of the equipment during operation, but also reduces the impact of vibration on various components and extends the overall service life of the equipment. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, the elements or components are not necessarily drawn to scale.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the internal structure of the present invention in a partial cross-sectional view (section view of the roll, not of the inner rotating drum).

[0020] Figure 3 This is a schematic cross-sectional view of the left side of the present invention, showing the keyed connection between the drum and the inner rotating drum.

[0021] Figure 4 This is a schematic diagram of the structure of the drum and the drum stop plate at its right end according to this utility model.

[0022] Figure 5This is a structural diagram of the roller and inner rotating drum of this utility model in the inserted state.

[0023] Figure 6 This is a schematic cross-sectional view of the left side of the roll of this utility model.

[0024] In the diagram, 1. Drum; 2. Drum baffle; 3. Inner drum; 4. Drum baffle; 5. Connecting flange; 6. Bearing seat; 7. Base; 8. Split spindle; 9. Hydraulic drive motor; 10. Spline; 11. Spline groove; 12. Rope pressing roller; 13. Support frame; 14. Lifting cylinder. Detailed Implementation

[0025] The embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of the present utility model, and are therefore merely examples and should not be construed as limiting the scope of protection of the present utility model. The specific structure of the present utility model is as follows: Figures 1-6 As shown in the image.

[0026] Example 1: A double-groove rope hydraulic winch includes a drum 1 with double-groove ropes. The surface of the drum 1 is used for winding steel wire rope. A drum stop 2 is coaxially fixed to the right end of the drum 1. The drum 1 is sleeved on the outer wall of an inner drum 3 and connected to it via a spline 10. A drum stop 4 is coaxially fixed to the left end of the inner drum 3. The drum stop 4 cooperates with the drum stop 2 to achieve a lateral stop for the steel wire rope wound on the drum 1. The drum 1 and the drum stop 4 cooperate to form a detachable drum 1 unit. Connecting flanges 5 are fixedly connected to the left and right ends of the drum 1 unit. Bearing seats 6 are symmetrically arranged on the outer side of each connecting flange 5. The bottom of each bearing seat 6 is quickly fixed to the base 7 below it. The outer end of each connecting flange 5 moves through the shaft hole of the bearing seat 6 at its corresponding position. A split spindle 8 is fixed at the center of the outer end face of each connecting flange 5. The split spindle 8 on the left side is used to connect to an external brake, and the split spindle 8 on the right side is used to connect to a hydraulic drive motor 9.

[0027] During assembly, the power components are connected by connecting the brake to the split spindle 8 on the left and the hydraulic drive motor 9 to the split spindle 8 on the right. At the same time, the wire rope is wound around the drum 1 of the drum unit and the double zigzag rope groove ensures the smoothness of winding and unwinding the rope.

[0028] After the drum unit 1 is connected, the connecting flange 5 on the left side is fixedly connected to the drum baffle 4, and the connecting flange 5 on the right side is connected to the drum baffle 2. At the same time, the axial positioning of the bearing seats 6 fixed on both sides can ensure the axial stability of the entire drum unit 1. When the hydraulic drive motor 9 works, the split spindle 8 drives the drum unit 1 to rotate, thereby driving the winding and unwinding of the wire rope wound on it.

[0029] When a wire rope gets stuck, the radial adjustment of the rope clamp can be controlled to loosen the wire rope, making it easier to readjust the wire rope.

[0030] When it is necessary to replace the drum 1 to match different working conditions, the connection between the current bearing seat 6 and the base 7 and the connection of the split main shaft 8 at both ends can be quickly disassembled to remove the drum 1 unit. Then, the drum 1 and the inner rotating drum 3 can be pulled out relative to each other, and then a new matching model drum 1 can be replaced, ensuring the replaceability of the drum 1.

[0031] When the winch is working, the drum 1 with double zigzag rope grooves and the inner drum 3 are first connected by spline 10 to achieve coaxial fixation. The drum baffle 4 fixed to the left end of the inner drum 3 and the drum baffle 2 fixed to the right end of the drum 1 form an axial limiting structure, which together form a detachable drum 1 unit. This process ensures the synchronous rotation accuracy of the drum 1 and the inner drum 3 through the tooth meshing of spline 10.

[0032] Flanges 5 are fixedly connected at both ends of the drum 1 unit. By using the assembly method of the outer end of the connecting flange 5 passing through the shaft hole of the bearing seat 6, combined with the quick-release fixing of the bearing seat 6 and the base 7, the radial and axial positioning of the drum 1 unit is completed.

[0033] Braking control is achieved by connecting a brake to the split spindle 8 on the left, and a hydraulic drive motor 9 is connected to the split spindle 8 on the right to provide power input, forming a complete power transmission link of power input - rotation execution - braking control.

[0034] Based on any of the above technical solutions, a further optimization is made as follows: a spline 10 is integrally formed on the outer side wall of the inner rotating drum 3, and a spline groove 11 that mates with the spline 10 is provided on the inner side wall of the drum 1.

[0035] The spline 10 on the outer wall of the inner rotating cylinder 3 is processed by a one-piece forming process of forging and milling, so that the spline 10 and the body of the inner rotating cylinder 3 form a rigid whole without connection gap, avoiding stress concentration problem of splicing structure; the spline groove 11 on the inner wall of the drum 1 is formed by milling, and its tooth profile parameters such as module, pressure angle, and number of teeth are completely matched with the spline 10 of the inner rotating cylinder 3.

[0036] During assembly, the drum 1 is axially inserted into the inner rotating drum 3, so that the spline 10 teeth and spline groove 11 are precisely engaged, thereby achieving circumferential fixation of the drum 1 and the inner rotating drum 3 and ensuring no relative slippage during power transmission; during disassembly, the two can be separated by applying a pulling force along the axial direction with the guidance of the spline 10 tooth surface.

[0037] Based on any of the above technical solutions, a further optimization is made: the left end face of the drum 1 is tightly fitted with the right end face of the rotating drum baffle 4.

[0038] Both the left end face of the drum 1 and the right end face of the rotating drum baffle 4 are machined by milling or grinding to ensure a flatness of not less than Ra0.8μm, ensuring no gaps during fitting. During assembly, the drum 1 is axially advanced along the spline 10 of the inner rotating drum 3 until its left end face is completely pressed against the right end face of the rotating drum baffle 4, forming a rigid fit of surface contact. During operation, the axial tension generated by the winding and unwinding of the wire rope is transmitted through the drum 1 to the pressing end face, then distributed to the left connecting flange 5 via the rotating drum baffle 4, and finally borne and balanced by the bearing seat 6.

[0039] Based on any of the above technical solutions, a further optimization is made by providing an adjusting rope presser above the drum 1.

[0040] Example 2: Compared with Example 1, this example also includes the following technical features: Based on any of the above technical solutions, a further optimization is made as follows: the adjusting rope presser includes a rope presser roller 12 horizontally arranged above the drum 1. The two ends of the central shaft of the rope presser roller 12 are respectively movably inserted into the rotating holes of the support frame 13 on the corresponding side. The outer ends of each support frame 13 are vertically folded downward and fixedly connected to the top of the piston rod of the lifting cylinder 14 at the corresponding position. The bottom of each lifting cylinder 14 is fixed to the top of the bearing seat 6 at the corresponding position. The two lifting cylinders 14 are in a synchronous lifting state during operation.

[0041] The support frame 13 adopts a folding structure with horizontal bearing and vertical transmission. After the outer end is folded vertically downward, it is rigidly connected to the piston rod of the lifting cylinder 14 through a flange, so that the vertical driving force of the lifting cylinder 14 is directly converted into the radial position adjustment force of the pressure rope roller 12.

[0042] The two lifting cylinders 14 are connected to the same hydraulic circuit. By precisely distributing the hydraulic oil flow, the extension and retraction of the piston rods of the two cylinders are ensured to be completely consistent, thereby ensuring that the two ends of the rope pressing roller 12 rise and fall synchronously and always maintain parallelism with the axis of the drum 1.

[0043] During operation, the extension length of the lifting cylinder 14 is preset according to the number of layers of wire rope winding, so that the rope pressing roller 12 applies constant radial pressure to the wire rope, forcing the wire rope to fit the double-folded rope groove; when the rope gets stuck, the hydraulic circuit is controlled to reverse so that the lifting cylinder 14 retracts, and the rope pressing roller 12 moves upward to release the pressure, reserving operating space for wire rope adjustment.

[0044] Based on any of the above technical solutions, a further optimization is made: the two lifting cylinders 14 drive the corresponding two support frames 13 and the rope pressing rollers 12 to rise and fall synchronously.

[0045] Based on any of the above technical solutions, a further optimization is made: the housing of the hydraulic drive motor 9 is fixedly set relative to the base 7.

[0046] The housing of the hydraulic drive motor 9 is fastened to the pre-set external mounting base of the base 7 by high-strength bolts. The flatness of the mounting base is not less than Ra1.6μm, and the bolt pre-tightening torque is set at 1.2 times the rated torque of the motor, so that the housing and the base 7 form a rigid whole without relative displacement.

[0047] During operation, the output shaft rotates while the outer casing remains stationary. The output shaft is coaxially connected to the right-side split main shaft 8 via a flexible coupling. The coupling's slight compensation capability counteracts the impact of installation errors on power transmission. The fixed outer casing provides fixed interfaces for the hydraulic oil inlet and return lines. The lines are fixed to the base 7 via pipe clamps to prevent vibration during motor operation from causing loosening and leakage of the pipe joints.

[0048] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. For those skilled in the art, any alternative improvements or transformations made to the implementation of this utility model fall within the protection scope of this utility model.

[0049] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. A double-groove rope hydraulic winch, comprising a drum with double-groove ropes, the surface of the drum being used for winding steel wire rope, characterized in that: A drum stop is coaxially fixed to the right end of the drum. The drum is sleeved on the outer wall of an inner drum and splined to it. A drum stop is coaxially fixed to the left end of the inner drum. The drum stop and the drum stop cooperate to achieve lateral blocking of the wire rope wound on the drum. The drum and the drum stop cooperate to form a detachable drum unit. Connecting flanges are fixedly connected to the left and right ends of the drum unit. Bearing seats are symmetrically arranged on the outer side of each connecting flange. The bottom of each bearing seat is quickly fixed to the base below it. The outer end of each connecting flange moves through the shaft hole of the bearing seat at its corresponding position. A split spindle is fixed at the center of the outer end face of each connecting flange. The split spindle on the left is used to connect to an external brake, and the split spindle on the right is used to connect to a hydraulic drive motor.

2. The double-folded rope groove hydraulic winch according to claim 1, characterized in that: A spline is integrally formed on the outer side wall of the inner rotating drum, and a spline groove that mates with the spline is provided on the inner side wall of the drum.

3. A double-folded rope groove hydraulic winch according to claim 2, characterized in that: The left end face of the drum abuts against the right end face of the drum stop.

4. A double-folded rope groove hydraulic winch according to claim 3, characterized in that: An adjusting rope presser is provided above the drum.

5. A double-folded rope groove hydraulic winch according to claim 4, characterized in that: The adjusting rope presser includes a rope presser roller horizontally arranged above the drum. The two ends of the central shaft of the rope presser roller are respectively movably inserted into the rotating holes of the support frame on the corresponding side. The outer ends of each support frame are vertically folded downward and fixedly connected to the top of the piston rod of the lifting cylinder at its corresponding position. The bottom of each lifting cylinder is fixed to the top of the bearing seat at its corresponding position. The two lifting cylinders are in a synchronous lifting state when working.

6. A double-folded rope groove hydraulic winch according to claim 5, characterized in that: The two lifting cylinders drive the corresponding two support frames and the rope pressing rollers to rise and fall synchronously.

7. A double-folded rope groove hydraulic winch according to claim 6, characterized in that: The housing of the hydraulic drive motor is fixed relative to the base.

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