Winch for hoisting frame

Abstract

The utility model relates to the field of mechanical equipment, and discloses a winch for a lifting frame, which comprises a winding box, a winding rod is rotatably mounted in the winding box, a winding motor is mounted on one side of the winding box, a driving shaft of the winding motor is connected with the winding rod, limiting discs are movably mounted at positions, close to two sides, of an outer ring of the winding rod, and the limiting discs are connected with the winding box. Movable sleeves are connected to the sides, away from each other, of the two limiting discs through connecting bolts, and adjusting bolts are connected to the top ends of the winding rods in a threaded mode and penetrate through the center positions of the top ends of the movable sleeves; by pushing the limiting disc to slide on the winding rod, the winding size can be conveniently adjusted according to needs, the steel wire lifting rope body penetrates through the auxiliary ring, guiding can be conveniently conducted during winding or unwinding, winding uniformity can be conveniently improved, large interference to follow-up unwinding is avoided, and the probability that the steel wire lifting rope body is accidentally disengaged from the winding rod is reduced.

Description

Technical Field

[0001] The utility model relates to the field of mechanical equipment, and particularly relates to a winch for a lifting frame. Background Art

[0002] A lifting frame is a device used for lifting heavy objects, and is commonly used in building construction, decoration, maintenance, cleaning and other work. Specifically, it is a device that completes the transportation process by a power machine dragging a flexible steel cable and the goods being transported up and down. The winding of the lifting rope steel wire rope is realized by an electric winch.

[0003] The Chinese patent provides an electric steel cable hoist winch with a publication number of CN220618254U, which includes a housing, a DC brushless motor, a driving gear, a driven gear, a worm, a worm gear, a first rotating shaft, a winding drum, and a flexible steel cable disposed in the housing. The worm and the first rotating shaft are arranged vertically and crosswise, and both ends are rotatably matched with the housing respectively.

[0004] Although the above device optimizes the transmission structure, reduces the gear set and thus reduces noise, and designs a coupling sleeve structure, enabling the winch to independently switch between electric and manual operations, the position of the wire inlet is fixed. During the winding process, the steel wire rope may be wound around the same position of the winding roller, resulting in uneven winding, affecting subsequent wire release, and the size of the winding disc is fixed, with poor flexibility in use. Content of the Utility Model

[0005] The purpose of the utility model is to provide a winch for a lifting frame to solve the problems in the use of the existing device that the position of the wire inlet is fixed, which may cause the steel wire rope to be wound around the same position of the winding roller during the winding process, resulting in uneven winding, affecting subsequent wire release, and the size of the winding disc is fixed, with poor flexibility in use.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A winch for a lifting frame includes a winding box, a winding rod is rotatably installed inside the winding box, a winding motor is installed on one side of the winding box, and the driving shaft of the winding motor is connected to the winding rod. Limiting discs are movably installed on both sides of the outer circle of the winding rod.

[0007] On the mutually remote sides of the two limiting discs, movable sleeves are connected through connecting bolts. A regulating bolt is threadedly connected to the center position at the top of the movable sleeve. A number of regulating holes adaptively matched with the regulating bolt are opened at the top of the winding rod, and the number of regulating holes is arranged at equal intervals on the winding rod. A steel wire suspension rope body is arranged between the two limiting discs on the outer circle of the winding rod.

[0008] Preferably, an installation box is fixedly installed at the front end of the winding box. An auxiliary threaded rod is rotatably installed inside the installation box. An auxiliary ring is threadedly connected to the outer ring of the auxiliary threaded rod, and one end of the steel wire sling body passes through the auxiliary ring.

[0009] Preferably, an auxiliary motor is installed on one side of the winding box. The driving shaft of the auxiliary motor is connected to one end of the auxiliary threaded rod.

[0010] Preferably, an adjusting threaded rod is rotatably installed at the front end of the installation box. An installation frame is slidably installed on the outer ring of the adjusting threaded rod, and a sensor is installed at one end of the installation frame away from the adjusting threaded rod.

[0011] Preferably, the positions of the two sensors are adaptively matched with the auxiliary ring, and the sensors do not contact the auxiliary ring.

[0012] Preferably, adjusting nuts are threadedly connected to both sides of each installation frame on the outer ring of the adjusting threaded rod, and the inner sides of the adjusting nuts are attached to both sides of the installation frame.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] 1) For the winch of the lifting frame, by screwing out the adjusting bolt and then pushing the limiting disk to slide on the winding rod, it is convenient to adjust the winding size as needed. After winding, the limiting disks can be adjusted to be close to each other, which is convenient for clamping the steel wire sling body and improving the winding stability;

[0015] 2) For the winch of the lifting frame, by passing the steel wire sling body through the auxiliary ring and reciprocatingly moving the auxiliary ring, it is convenient to guide during winding or unwinding, which is convenient for improving the winding uniformity, preventing the steel wire sling body from winding at the same position, avoiding great interference to subsequent unwinding, and at the same time, uniform winding and unwinding can reduce the probability of the steel wire sling body accidentally detaching from the winding rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of a winch for a lifting frame in an embodiment of the present utility model;

[0017] Figure 2 It is a top view of the overall structure of the winding box in an embodiment of the present utility model;

[0018] Figure 3 It is a schematic diagram of the connection part between the auxiliary threaded rod and the auxiliary ring in an embodiment of the present utility model;

[0019] Figure 4 It is an exploded view of the structure of the limiting disk and the movable sleeve in an embodiment of the present utility model.

[0020] In the figure: 1. Rewinding box; 2. Rewinding rod; 3. Rewinding motor; 4. Limit disc; 5. Movable sleeve; 6. Connecting bolt; 7. Adjusting bolt; 8. Adjusting hole; 9. Steel wire sling body; 10. Installation box; 11. Auxiliary threaded rod; 12. Auxiliary ring; 13. Adjusting threaded rod; 14. Installation frame; 15. Inductor; 16. Adjusting nut. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Embodiment 1

[0023] Combined with Figures 1-4 , a winch for a lifting frame includes a rewinding box 1. A rewinding rod 2 is rotatably installed inside the rewinding box 1. A rewinding motor 3 is installed on one side of the rewinding box 1, and the driving shaft of the rewinding motor 3 is connected to the rewinding rod 2. Limit discs 4 are movably installed on both sides of the outer circle of the rewinding rod 2.

[0024] Referring to Figure 2 and Figure 3 , it is further obtained that an installation box 10 is fixedly installed at the front end of the rewinding box 1. An auxiliary threaded rod 11 is rotatably installed inside the installation box 10. An auxiliary ring 12 is threadedly connected to the outer circle of the auxiliary threaded rod 11, and one end of the steel wire sling body 9 passes through the auxiliary ring 12. An auxiliary motor is installed on one side of the rewinding box 1, and the driving shaft of the auxiliary motor is connected to one end of the auxiliary threaded rod 11. An adjusting threaded rod 13 is rotatably installed at the front end of the installation box 10. An installation frame 14 is slidably installed on the outer circle of the adjusting threaded rod 13, and an inductor 15 is installed at one end of the installation frame 14 away from the adjusting threaded rod 13. The positions of the two inductors 15 are adaptively matched with the auxiliary ring 12, and the inductor 15 does not contact the auxiliary ring 12. Adjusting nuts 16 are threadedly connected to both sides of each installation frame 14 on the outer circle of the adjusting threaded rod 13, and the inner sides of the adjusting nuts 16 are attached to both sides of the installation frame 14.

[0025] Specifically, one end of the steel wire sling body 9 passes through the auxiliary ring 12. The auxiliary ring 12 plays a role in guiding the steel wire sling body 9. Thus, when the movable sleeve 5 is reversely started for winding later, the auxiliary motor can be started to drive the auxiliary threaded rod 11 to rotate, so as to threadedly push the auxiliary ring 12 to move in front of the winding rod 2, so as to guide the steel wire sling body 9 to be evenly wound around the outer circle of the winding rod 2, preventing the steel wire sling body 9 from being wound at the same place for a long time. And when the auxiliary ring 12 moves, the mounting frame 14 can be adjusted to a suitable position as needed. When adjusting, the adjusting nuts 16 threadedly connected to the outer circle of the adjusting threaded rod 13 can be sequentially screwed in a suitable direction, and then the mounting frame 14 is pushed to move, so as to limit the moving range of the auxiliary ring 12, that is, when the inductor 15 on the mounting frame 14 at any position senses the auxiliary ring 12, the driving shaft of the auxiliary threaded rod 11 is controlled to reverse, so that the auxiliary ring 12 moves in the other direction until another inductor 15 detects the auxiliary ring 12, and this process is repeated, so as to guide the steel wire sling body 9 to move back and forth between the two limit discs 4, improving the winding uniformity.

[0026] Embodiment 2

[0027] Refer to Figure 2 and Figure 4 On the basis of Embodiment 1, it is further obtained that movable sleeves 5 are connected to the mutually remote sides of the two limit discs 4 through connecting bolts 6. A regulating bolt 7 is threadedly connected to the middle position at the top end of the movable sleeve 5 in a penetrating manner. A plurality of regulating holes 8 adaptively and matchingly arranged with the regulating bolt 7 are formed at the top end of the winding rod 2, and the plurality of regulating holes 8 are arranged at equal intervals on the winding rod 2. A steel wire sling body 9 is arranged on the outer circle of the winding rod 2 and between the two limit discs 4.

[0028] Specifically, the limit disc 4 and the movable sleeve 5 are combined with each other through the connecting bolt 6, and the regulating bolt 7 passes through the top of the movable sleeve 5 and is screwed into the regulating hole 8 in the winding rod 2 to fix the movable sleeve 5. Thus, in use, the regulating bolt 7 can be screwed out to release the fixation of the limit disc 4, and then the limit disc 4 is pushed to slide on the winding rod 2, so as to change its size. Since the steel wire sling body 9 is between the two limit discs 4, the winding size of the steel wire sling body 9 is changed.

[0029] In the actual operation process, when the steel wire sling body 9 is installed on the winding rod 2, one end of the steel wire sling body 9 can pass through the auxiliary ring 12. The auxiliary ring 12 plays a role in guiding the steel wire sling body 9. At the same time, in use, the movable sleeve 5 can be reversely started for winding, and the auxiliary motor can be started to drive the auxiliary threaded rod 11 to rotate, so as to threadedly push the auxiliary ring 12 to move in front of the winding rod 2, so as to guide the steel wire sling body 9 to be evenly wound around the outer circle of the winding rod 2, preventing the steel wire sling body 9 from being wound at the same place for a long time;

[0030] And when the auxiliary ring 12 moves, the mounting bracket 14 can be adjusted to a suitable position as needed. When adjusting, the adjusting nuts 16 threadedly connected to the outer ring of the adjusting threaded rod 13 can be sequentially screwed in the appropriate direction, and then the mounting bracket 14 is pushed to move, so as to limit the movement range of the auxiliary ring 12. That is, when the sensor 15 on the mounting bracket 14 at any position senses the auxiliary ring 12, the control auxiliary threaded rod 11 drives the shaft to reverse, so that the auxiliary ring 12 moves in the other direction until another sensor 15 detects the auxiliary ring 12, and this process is repeated to guide the wire sling body 9 to move back and forth between the two limit discs 4, improving the winding uniformity;

[0031] The limit disc 4 and the movable sleeve 5 are combined with each other through the connecting bolt 6, and the movable sleeve 5 is fixed by screwing the adjusting bolt 7 through the top of the movable sleeve 5 and into the adjusting hole 8 in the winding rod 2. Thus, in use, the adjusting bolt 7 can be screwed out to release the fixation of the limit disc 4, and then the limit disc 4 is pushed to slide on the winding rod 2, thereby changing its size. Since the wire sling body 9 is between the two limit discs 4, the winding size of the wire sling body 9 is changed, which is convenient for adjustment as needed. At the same time, by adjusting the position of the limit disc 4 to clamp it inward, the loosening of the wire sling body 9 after winding can be avoided.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to the embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A winch for a lifting frame, comprising a winding box (1), wherein a winding rod (2) is rotatably installed inside the winding box (1), a winding motor (3) is installed on one side of the winding box (1), and a driving shaft of the winding motor (3) is connected to the winding rod (2), and the characteristics are as follows: Limit discs (4) are movably installed on both sides of the outer ring of the winding rod (2); On the side of each of the two limit discs (4) away from each other, a movable sleeve (5) is connected by a connecting bolt (6). A regulating bolt (7) is threadedly connected to the center of the top of the movable sleeve (5). A number of regulating holes (8) adapted to the regulating bolt (7) are provided at the top of the winding rod (2), and the number of regulating holes (8) is arranged at equal intervals on the winding rod (2). A steel wire sling body (9) is arranged between the two limit discs (4) on the outer ring of the winding rod (2).

2. The winch for a lifting frame according to claim 1, characterized in that: An installation box (10) is fixedly installed at the front end of the winding box (1). An auxiliary threaded rod (11) is rotatably installed inside the installation box (10). An auxiliary ring (12) is threadedly connected to the outer ring of the auxiliary threaded rod (11), and one end of the steel wire sling body (9) passes through the auxiliary ring (12).

3. A winch for a lifting frame according to claim 1, characterized in that: An auxiliary motor is installed on one side of the winding box (1), and the driving shaft of the auxiliary motor is connected to one end of the auxiliary threaded rod (11).

4. A winch for a lifting frame according to claim 2, characterized in that: A regulating threaded rod (13) is rotatably installed at the front end of the installation box (10). An installation frame (14) is slidably installed on the outer ring of the regulating threaded rod (13), and a sensor (15) is installed at the end of the installation frame (14) away from the regulating threaded rod (13).

5. The winch for a lifting frame according to claim 4, characterized in that: The positions of the two sensors (15) are adapted to the auxiliary ring (12), and the sensor (15) does not contact the auxiliary ring (12).

6. A winch for a lifting frame according to claim 4, characterized in that: Regulating nuts (16) are threadedly connected to both sides of each installation frame (14) on the outer ring of the regulating threaded rod (13), and the inner sides of the regulating nuts (16) are in contact with both sides of the installation frame (14).

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