Continuous pre-tightening force device for steel wire rope

Abstract

The utility model relates to the technical field of pre-tightening force mechanisms, in particular to a steel wire rope continuous pre-tightening force device which comprises a rack, a rope storage barrel rotationally arranged on the rack, a friction barrel rotationally arranged on the rack and pre-tightening force mechanisms arranged on the side wall of the rope storage barrel and the side wall of the friction barrel correspondingly, and the pre-tightening force mechanisms are used for providing friction force. The winding device has the effects that in the process of winding the steel wire rope on the winding roller of the winch, the steel wire rope is continuously wound, and the winding process is reduced.

Description

Technical Field

[0001] This application relates to the field of pretensioning mechanism technology, and in particular to a continuous pretensioning device for wire rope. Background Technology

[0002] Winches are common lifting equipment widely used in construction sites, ports, and other locations. Winches load heavy objects via wire ropes. Wire rope tangling and short service life are common problems that affect winch efficiency. During operation, a pre-tensioning mechanism is often used to provide pre-tension to the wire rope before winding it onto the drum.

[0003] In existing systems, a winch provides preload to the wire rope via a tension winch. The winch is equipped with a drive mechanism that rotates the winch's take-up roller. The tension winch is equipped with a drive device for providing preload and a wire traction rope wound on the tension winch drum. When winding the wire rope onto the winch's take-up roller, a clamp is fixed to the wire rope wound onto the outer wall of the take-up roller. The clamp is fixed to the wire traction rope. The tension winch is started to provide preload to the wire rope clamped by the clamp. The wire rope between the clamp and the winch's take-up roller is taut. The winch is started to begin winding the wire rope. After the wire rope between the tension winch and the winch is wound, the clamp is placed on the unwound portion of the wire rope. The tension winch is started again to provide preload to the wire rope clamped by the clamp. This process is repeated until the entire wire rope is wound.

[0004] The aforementioned pre-tensioning mechanism winds the wire rope onto the winch's winding rollers. This process requires multiple repetitions to wind the wire rope, making continuous winding impossible and thus requiring improvement. Utility Model Content

[0005] In order to continuously wind the wire rope during the winding process on the winch take-up roller and reduce the winding process, this application provides a wire rope continuous pretensioning device.

[0006] This application provides a continuous pretensioning device for steel wire ropes, which adopts the following technical solution:

[0007] A wire rope continuous pretensioning device includes a frame, a rope storage drum rotating on the frame, a friction drum rotating on the frame, and pretensioning mechanisms respectively disposed on the side walls of the rope storage drum and the friction drum, wherein the pretensioning mechanisms are used to provide friction force.

[0008] By adopting the above technical solution, the drive mechanism is activated, causing the rope storage drum to rotate on the frame. The end of the wire rope wraps around the friction drum and is wound onto the outer wall of the rope storage drum. Before winding the wire rope, the operator sets the preload in the preload mechanism. During the winding of the wire rope, as it winds onto the winch's take-up roller, the preload mechanism continuously provides friction to the rope storage drum and the friction drum, thus continuously providing preload to the wire rope. The wire rope between the friction drum and the winch's take-up roller is taut, and the wire rope is continuously wound onto the winch's take-up roller. This continuous winding of the wire rope reduces the winding process.

[0009] Optionally, the pre-tensioning mechanism includes a vent pipe, a pneumatic brake structure, and a control component located on the vent pipe. The vent pipe is connected to the pneumatic brake structure, and an air inlet is provided on the vent pipe. The pneumatic brake structure is placed on the side wall of the rope storage cylinder and the friction cylinder. The air inlet is located between the control component, and the control component controls the air intake of the pneumatic brake structure.

[0010] By adopting the above technical solution, the control component is activated, gas enters the air inlet, and enters the control component through the air pipe. The control component controls the airflow to the pneumatic brake structure, and the pneumatic brake structure provides preload to the rope storage drum and friction drum.

[0011] Optionally, the friction cylinder sidewall edge is provided with a friction plate, the rope storage cylinder sidewall is coaxially provided with the friction plate, and the pneumatic brake structure clamps the friction plate.

[0012] By adopting the above technical solution, when the wire rope tension is insufficient, the pneumatic brake structure clamps the friction plate, and the pneumatic brake structure does not directly contact the rope storage drum and the friction drum, thereby reducing the wear on the rope storage drum and the friction drum structure during the braking process.

[0013] Optionally, the vent pipe is equipped with a switching valve, which is located between the pneumatic brake structure and the control component.

[0014] By adopting the above technical solution, when air needs to be supplied to the pneumatic brake structure, the switching valve is activated. At this time, under the control of the control unit, the pneumatic brake structure provides the required air pressure. When the switching valve is closed, the air pipe is blocked, which facilitates the control of the air flow and thus facilitates the control of the pneumatic brake structure's operation.

[0015] Optionally, the air inlets of the air supply pipes of several of the pneumatic brake structures are connected to the air inlets of the air inlets.

[0016] By adopting the above technical solution, when multiple pneumatic brake structures need to be supplied with air, all pretensioning mechanisms are supplied with air from the same air inlet, reducing the number of air inlets and thus making the structure of a wire rope continuous pretensioning device more streamlined.

[0017] Optionally, the frame includes a first base and a second base, the rope storage drum is rotatably connected to the first base, the friction drum is rotatably connected to the second base, and a plurality of rope storage drums and friction drums are provided, each of the plurality of friction drums being provided with the pre-tensioning mechanism, and the rope storage drums and friction drums are in one-to-one correspondence.

[0018] By adopting the above technical solution, the pre-tensioning mechanism provides friction to the corresponding friction cylinder, enabling multiple sets of friction cylinders and rope storage cylinders to work simultaneously. The rope storage cylinder can simultaneously wind multiple sets of wire ropes, thereby improving the winding efficiency of the wire rope.

[0019] Optionally, the preload mechanism of several of the friction cylinders is provided with the switching valve.

[0020] By adopting the above technical solution, when multiple friction cylinders work together, the opening and closing of the air pipe that supplies air to the pre-tightening mechanism can be easily controlled by the switching valve, thereby facilitating the control of the operation of multiple pre-tightening mechanisms.

[0021] Optionally, the side wall of the rope storage drum is provided with a drive mechanism for driving the rope storage drum to rotate. The drive mechanism includes a support, a first drive gear coaxially fixed to the side wall of the rope storage drum, a second drive gear rotatably connected to the support, a chain conveyor belt wound around the first drive gear and the second drive gear, and a drive member disposed on the support. The drive member on the support drives the second drive gear to rotate.

[0022] By adopting the above technical solution, the drive component fixed on the support is activated, the drive component drives the second drive gear to rotate, the second drive gear drives the chain conveyor belt, the chain conveyor belt drives the first drive gear to rotate, thereby driving the rope storage drum to rotate.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. Before winding the wire rope, the operator sets the required preload in the preload mechanism. When winding the wire rope onto the winch's winding roller, the winch pulls the wire rope, and the preload mechanism provides preload to the rope storage drum and friction drum, thereby meeting the wire rope tension requirements of the winch when winding the wire rope. This process continuously provides preload, reducing the winding process.

[0025] 2. When a single roll of wire rope needs to be wound on the winch take-up roller, a pair of friction drums and rope storage drums can be used directly for the wire rope winding operation; when multiple rolls of wire rope need to be wound on the winch take-up roller, multiple pairs of one-to-one corresponding friction drums and rope storage drums can be used for winding, thereby improving winding efficiency.

[0026] 3. Several pre-tightening mechanisms correspond one-to-one with the friction cylinders, and the friction cylinders work independently, thereby reducing mutual interference between the friction cylinders. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a wire rope continuous pretensioning device according to an embodiment of this application.

[0028] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0029] Figure 3 This is a schematic diagram of the overall structure of the pre-tightening mechanism in the embodiments of this application.

[0030] Figure 4 yes Figure 3 Enlarged view of point B in the middle.

[0031] Reference numerals: 1. Frame; 2. Rope storage drum; 3. Friction drum; 4. Pre-tensioning mechanism; 5. Drive mechanism; 41. Air pipe; 42. Pneumatic brake structure; 43. Control component; 44. Air inlet; 6. Friction plate; 7. Switch valve; 11. First base; 12. Second base; 51. Support; 52. First drive gear; 53. Second drive gear; 54. Chain conveyor belt; 55. Drive component; 8. Rotating shaft. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0033] This application discloses a continuous pretensioning device for steel wire ropes.

[0034] Reference Figure 1 and Figure 2 A continuous pretensioning device for wire rope includes a frame 1, a rope storage drum 2 and a friction drum 3 mounted on the frame 1, a pretensioning mechanism 4, and a drive mechanism 5. In this embodiment, two rope storage drums 2 are preferably provided. The frame 1 includes a first base 11 and a second base 12. Both rope storage drums 2 are rotatably connected to the first base 11 via a rotating shaft, and the two rope storage drums 2 are coaxially fixed. The first base 11 is provided with a drive mechanism 5 for driving the rope storage drums 2 to rotate. When it is necessary to wind the purchased wire rope onto the outer wall of the rope storage drum 2, the end of the wire rope is first fixed to the outer wall of the rope storage drum 2, and then the drive mechanism 5 is activated. The drive mechanism 5 drives the rope storage drum 2 to rotate, winding the wire rope onto the outer wall of the rope storage drum 2.

[0035] Reference Figure 1 and Figure 2The friction cylinder 3 is rotatably connected to the second base 12 via a rotating shaft. In this embodiment, two friction cylinders 3 are preferably provided, with their rotating shafts aligned in a straight line, and the two friction cylinders 3 are independently configured. Each friction cylinder 3 is equipped with an independently operating pre-tensioning mechanism 4. The two pneumatic brake structures 42 are independently controlled by two corresponding switching valves 7, and the airflow to the two pneumatic brake structures 42 is controlled by a control element 43. The two pneumatic brake structures 42 are connected to an air inlet 44. When two sets of wire ropes are wound on the two winches, the two friction cylinders 3 correspond one-to-one with the two rope storage cylinders 2, enabling simultaneous winding operations.

[0036] Reference Figure 1 The drive mechanism 5 includes a support 51, a second drive gear 53 rotatably connected to the support 51 via a rotating shaft, a first drive gear 52 coaxially fixed to the side wall of the rope storage drum 2, a chain conveyor belt 54 wound around the second drive gear 53 and the first drive gear 52, and a drive member 55 disposed on the support 51. The drive member 55 is used to drive the second drive gear 53 to rotate. In this embodiment, the drive member 55 is preferably a drive motor. The rotating shaft of the drive member 55 is coaxially fixed with the second drive gear 53. When the drive member 55 is started, the rotating shaft of the drive member 55 rotates, driving the second drive gear 53 to rotate. The second drive gear 53 drives the first drive gear 52 to rotate through the chain conveyor belt 54, thereby driving the rope storage drum 2 to rotate.

[0037] Reference Figure 2 , Figure 3 and Figure 4 The pretensioning mechanism 4 includes a pneumatic brake structure 42, a vent pipe 41 connected to the pneumatic brake structure 42, an air inlet 44 located at the end of the vent pipe 41, and a control component 43 located on the vent pipe 41. When the pretensioning mechanism 4 is started, the switch valve 7 is opened, and gas flows to the pneumatic brake structure 42 through the air inlet 44. The control component 43 controls the amount of air flowing to the pneumatic brake structure 42. The pneumatic brake structure 42 provides pretensioning force to the rope storage drum 2 and the friction drum 3, which facilitates the adjustment of the tension of the wire rope during the process of winding the wire rope onto the outer wall of the winch.

[0038] Reference Figure 3 and Figure 4 A rotating shaft 8 is provided on the outer wall of the rope storage cylinder 2. The rotating shaft 8 is coaxially fixed with the rotating shaft of the rope storage cylinder 2. A friction plate 6 is coaxially fixed on the outer wall of the rotating shaft 8. A friction plate 6 is also welded and fixed on the outer wall of the friction cylinder 3. The friction plate 6 on the outer wall of the friction cylinder 3 is annular and located at the edge of the outer wall of the friction cylinder 3. The pneumatic brake structure 42 clamps the friction plate 6 on the rope storage cylinder 2 and the friction cylinder 3. When the pneumatic brake structure 42 provides friction force to the friction plate 6, the pneumatic brake structure 42 does not directly contact the rope storage cylinder 2 and the friction cylinder 3.

[0039] The implementation principle of the continuous pretensioning device for wire rope in this embodiment is as follows: the first base 11, the second base 12 and the bracket need to be fixed on the platform. The winding roller, friction cylinder 3 and rope storage drum 2 of the winch are arranged side by side. The end of the wire rope on the outer wall of the rope storage drum 2 is wrapped around the friction cylinder 3 three times and then fixed to the outer wall of the winch winding roller. The winch winding roller rotates, driving the wire rope to be wound on the winch winding roller. The pretensioning mechanism 4 provides pretensioning force to the rope storage drum 2 and the friction cylinder 3, thereby increasing the tension of the wire rope and realizing continuous winding of the wire rope, reducing the winding process.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A continuous pre-tensioning device for a steel wire rope, characterized in that: The invention comprises a frame (1), a rope storage drum (2) rotating on the frame (1), a friction drum (3) rotating on the frame (1), and a pre-tightening mechanism (4) respectively arranged on the side walls of the rope storage drum (2) and the friction drum (3), wherein the pre-tightening mechanism (4) is used to provide friction force, and the pre-tightening mechanism (4) comprises a vent pipe (41), a pneumatic brake structure (42) and a control member (43) located on the vent pipe (41); The ventilation pipe (41) is connected to the pneumatic brake structure (42), an air inlet nozzle (44) is provided on the ventilation pipe (41), the pneumatic brake structure (42) is placed on the side walls of the rope storage drum (2) and the friction drum (3), the air inlet nozzle (44) is located between the control member (43), and the control member (43) controls the air intake amount of the pneumatic brake structure (42).

2. A steel wire rope continuous pre-tensioning device according to claim 1, characterized in that: A friction plate (6) is provided on the edge of the side wall of the friction cylinder (3), the friction plate (6) is coaxially provided on the side wall of the rope storage cylinder (2), and the pneumatic brake structure (42) clamps the friction plate (6).

3. A steel wire rope continuous pre-tensioning device according to claim 1, characterized in that: The ventilation pipe (41) is provided with a switch valve (7), and the switch valve (7) is located between the pneumatic brake structure (42) and the control component (43).

4. A steel wire rope continuous pre-tensioning device according to claim 1, characterized in that: The air inlets of the air supply pipes of the plurality of pneumatic brake structures (42) are all in communication with the air port of the air inlet nozzle (44).

5. A steel wire rope continuous pre-tensioning device according to claim 1, characterized in that: The frame (1) comprises a first base (11) and a second base (12); the rope storage drum (2) is rotatably connected to the first base (11); the friction drum (3) is rotatably connected to the second base (12); a plurality of the rope storage drum (2) and the friction drum (3) are provided; each of the plurality of friction drums (3) is provided with the pre-tightening mechanism (4); and the rope storage drum (2) and the friction drum (3) are in one-to-one correspondence.

6. A steel wire rope continuous pre-tensioning device according to claim 3, characterized in that: The preload force mechanisms (4) of a plurality of the friction cylinders (3) are all provided with the switch valve (7).

7. A steel wire rope continuous pre-tensioning device according to claim 1, characterized in that: A driving mechanism (5) for driving the rope storage drum (2) to rotate is arranged on the side wall of the rope storage drum (2), the driving mechanism (5) comprising a support (51), a first driving gear (52) coaxially fixed to the side wall of the rope storage drum (2), a second driving gear (53) rotatably connected to the support (51), a chain conveyor belt (54) wound around the first driving gear (52) and the second driving gear (53), and a driving member (55) arranged on the support (51), wherein the driving member (55) on the support (51) drives the second driving gear (53) to rotate.

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