Single-drum hoist self-balancing device

Abstract

The utility model provides a single winch hoist self -balancing device, include: support frame, support frame is installed on the hoist of winch, rotary lever, rotary lever rotation is installed on the support frame, counterweight, be equipped with the shaft sleeve on the counterweight, the shaft sleeve is equipped on the rotary lever, driving piece, driving piece is installed on one side of support frame and is connected with rotary lever, driving piece drives rotary lever to rotate on the support frame, the rotary lever is cooperated with the shaft sleeve and drives counterweight to move to left side or right side change hoist's barycentre position to realize the effect that hoist keeps balance, can solve the problem that the force of wire rope between each pulley of hook group is uneven or moves out of step and makes hoist to incline in the process that single winch hook pulley group is lifted or falls, improves security.

Description

Technical Field

[0001] This utility model relates to the field of winch technology, and in particular to a self-balancing device for a single winch hoist. Background Technology

[0002] In practice, during the lifting or lowering process, single-winch hook pulley blocks are prone to tilting due to uneven stress or asynchronous movement of the wire ropes among the pulleys. This tilting phenomenon is even more common in multi-ratio hooks.

[0003] When the drum winds or unwinds the wire rope, the wire rope closest to the drum will change first due to the resistance between the wire rope and the pulleys and pulley bearings. Subsequently, as the winding amount increases, the wire ropes of the second and third rows of pulleys will be affected in turn. Ultimately, this will cause the amount of change in the wire rope on the drum side to be significantly greater than that on the fixed point side, which will cause the hook pulley shaft to become misaligned. The effects of this misalignment can range from accelerated wear of the wire rope and pulleys to, in severe cases, wire rope derailment, wire rope damage and scrapping, pulley breakage, and even injury or death.

[0004] Therefore, it is necessary to provide a new type of docking device for switchgear trolleys to overcome the above-mentioned defects. Utility Model Content

[0005] The purpose of this invention is to provide a self-balancing device for a single winch lifting device, which can solve the problem of uneven force or asynchronous movement of the wire ropes between the pulleys of the hook assembly during the lifting or lowering process of a single winch hook pulley block in actual construction, thus causing the lifting device to tilt and improving safety.

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows: A self-balancing device for a single winch lifting device, comprising:

[0007] A support frame, which is mounted on the hoisting device of the winch;

[0008] A rotating rod, which is rotatably mounted on a support frame;

[0009] A balance block, wherein a bushing is provided on the balance block, and the bushing is sleeved on the rotating rod;

[0010] A driving component is installed on one side of the support frame and connected to the rotating rod. The driving component drives the rotating rod to rotate on the support frame. The rotating rod cooperates with the bushing to move the balance block to the left or right to change the center of gravity of the lifting device, thereby achieving the function of keeping the lifting device balanced.

[0011] Preferably, the support frame is provided with a bearing housing with bearings, and the rotating rod is installed in the bearing housing.

[0012] Preferably, one end of the rotating rod is provided with a coupling, and the driving component is connected to the coupling through the bearing of the bearing housing.

[0013] Preferably, a sensor is provided on the support frame.

[0014] Preferably, the support frame is equipped with an angle sensor.

[0015] Preferably, a battery is also provided on one side of the support frame, and the battery is electrically connected to the drive component.

[0016] Preferably, a miniature control cabinet with a control panel is also provided on the other side of the support frame. The miniature control cabinet is electrically connected to the battery, and the drive unit, sensor and angle sensor are all electrically connected to the miniature control cabinet.

[0017] Preferably, the bottom of the balance block is equipped with a pulley, and the balance block contacts the support frame through the pulley, enabling it to move on the support frame.

[0018] Compared with existing technologies, the advantages are as follows: by rotating the rod and engaging the bushing to move the balance block to the left or right, the center of gravity of the lifting device is changed, thus maintaining the lifting device in a balanced state. This solves the problem of lifting device tilting during the lifting or lowering of a single winch hook pulley block in actual construction due to uneven force or asynchronous movement of the wire ropes among the pulleys, thereby improving safety.

[0019] Other features and advantages of this invention will be set forth in the following description, and in part will be apparent from the description, or may be learned by practice of the invention. The features and advantages of this invention may be realized and obtained by means of the elements and combinations specifically pointed out in the appended claims. These and other features of this invention will become more apparent from the following description and the appended claims, or may be learned by practice of the embodiments described herein. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a perspective view of the self-balancing device for a single winch lifting device according to this utility model.

[0022] Reference numerals: 1. Support frame; 11. Bearing seat; 12. Sensor; 13. Angle sensor; 14. Battery; 15. Miniature control cabinet; 2. Rotating rod; 21. Coupling; 3. Counterweight; 31. Bushing; 32. Pulley; 4. Drive component. Detailed Implementation

[0023] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described in this specification are merely for explaining the present utility model and are not intended to limit the present utility model.

[0024] It should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0026] Please see Figure 1 This utility model provides a self-balancing device for a single winch lifting device, comprising: a support frame 1, wherein the support frame 1 is mounted on the lifting device of the winch;

[0027] Rotating rod 2, which is rotatably mounted on support frame 1;

[0028] Balance block 3, the balance block 3 is provided with bushing 31, the bushing 31 is sleeved on the rotating rod 2;

[0029] The driving component 4 is installed on one side of the support frame 1 and connected to the rotating rod 2. The driving component 4 drives the rotating rod 2 to rotate on the support frame 1. The rotating rod 2 cooperates with the bushing 31 to drive the balance block 3 to move to the left or right to change the center of gravity of the lifting device, thereby achieving the function of balancing the lifting device.

[0030] It should be noted that in this embodiment, the balance block 3 is made of metal material (e.g., steel, iron, copper) and weighs 1KG-30KG. The rotating rod 2 is a lead screw, and the bushing 31 has an internal thread. When the bushing 31 is fitted onto the rotating rod 2, the internal thread engages with the external thread on the lead screw. The driving component 4 consists of a motor and a reducer. When the driving component 4 is energized and starts to drive the rotating rod 2 to rotate, the bushing 31 converts the rotational motion into linear motion under the drive of the lead screw, thereby driving the balance block 3 to move to the left or right.

[0031] In a preferred embodiment, the support frame 1 is provided with a bearing seat 11 with bearings, and the rotating rod 2 is installed in the bearing of the bearing seat 11, so that the driving component 4 can drive the rotating rod 2 to rotate stably.

[0032] In a preferred embodiment, one end of the rotating rod 2 is provided with a coupling 21, and the shaft of the motor of the driving component 4 passes through the bearing of the bearing housing 11 and is connected to the coupling 21. The advantage of providing a coupling 21 between the rotating rod 2 and the driving component 4 is that, on the one hand, it facilitates the assembly and disassembly of the driving component 4 and the rotating rod 2, and on the other hand, it ensures stable torque transmission. It should be noted that in this embodiment, there are two bearing housings 11. The coupling 21 at one end of the rotating rod 2 is connected to the shaft of the motor of the driving component 4, and the other end of the rotating rod 2 is inserted into the bearing of one of the bearing housings 11.

[0033] In a preferred embodiment, a sensor 12 is provided on the support frame 1, which is used to detect the position of the balance block 3. It should be noted that, in this embodiment, the sensor 12 is a photoelectric sensor 12, which consists of a transmitter and a receiver. The transmitter and receiver are located on opposite sides of the balance block 3. When the light beam emitted by the transmitter is blocked by the balance block, the receiver will detect the interruption of the light signal, or the received light is very weak, and convert it into an electrical signal output.

[0034] In a preferred embodiment, an angle sensor 13 is provided on the support frame 1, and the angle sensor 13 is used to detect the angle of the balance block 3.

[0035] In a preferred embodiment, a battery 14 is also provided on one side of the support frame 1. The battery 14 is electrically connected to the drive component 4 to provide power to the motor of the drive component 4.

[0036] In a preferred embodiment, a miniature control cabinet 15 with a control panel is also provided on the other side of the support frame 1. The miniature control cabinet 15 is electrically connected to the battery 14, and the motor, sensor 12 and angle sensor 13 of the drive unit 4 are all electrically connected to the miniature control cabinet 15.

[0037] In a preferred embodiment, a pulley 32 is installed at the bottom of the balance block 3, and the balance block 3 contacts the support frame 1 through the pulley 32, enabling it to move on the support frame 1. By providing a pulley on the balance block 3, the frictional force when the balance block 3 moves on the support frame 1 can be reduced, thereby reducing the resistance when the balance block 3 moves to the left or right.

[0038] The sensor 12 and the angle sensor 13 send detection signals (such as electrical signals) to the micro control cabinet 15. After receiving the detection signals from the sensor 12 and the angle sensor 13, the micro control cabinet 15 determines whether the balance block 3 is tilted in order to control the motor of the drive component 4 to work.

[0039] Driven by the motor of the drive unit 4, the rotating rod 2 is converted into linear motion by the bushing 31 under the action of the lead screw, thereby driving the balance block 3 to move to the left or right and changing the center of gravity of the lifting device. When the lifting device reaches a horizontal state, the micro control cabinet 15 controls the motor of the drive unit 4 to stop driving the rotating rod 2 to rotate, achieving a balanced lifting state. At the same time, the reducer plays a self-locking role on the rotating rod 2, thereby controlling the motor to brake and lock the lifting device in a balanced state.

[0040] In use, when the wire ropes of the hook assembly of a single winch are subjected to uneven force or move asynchronously, which may cause the lifting device to tilt, the sensor 12 and the angle sensor 13 detect the position and angle of the balance block 3 in real time and send the detection signal to the micro control cabinet 15. After receiving the detection signals from the sensor 12 and the angle sensor 13, the control panel of the micro control cabinet 15 determines that the balance block 3 on the support frame 1 is tilted. Then, the micro control cabinet 15 controls the motor of the drive component 4 to work, so that the motor drives the rotating rod 2 to start rotating.

[0041] Driven by the motor of the drive unit 4, the rotating rod 2 is converted into linear motion by the bushing 31 under the action of the rotating rod 2 (lead screw), thereby driving the balance block 3 to move to the left or right and changing the center of gravity of the lifting device. When the lifting device reaches a horizontal state, the micro control cabinet 15 controls the motor of the drive unit 4 to stop driving the rotating rod 2 to rotate, achieving a balanced lifting state. At the same time, the reducer plays a self-locking role on the rotating rod 2, thereby controlling the motor to brake and lock the lifting device in a balanced state.

[0042] In this way, by adjusting the position of the balance block 3, the center of gravity of the lifting device can be adjusted, thus maintaining the lifting device in a balanced state. This overcomes the technical problem that the lifting device is prone to tilting due to uneven force or asynchronous movement of the wire ropes between the pulleys of the hook group of a single winch.

[0043] This invention is not limited to the description in the specification and embodiments. Therefore, other advantages and modifications can be readily realized by those skilled in the art. Thus, without departing from the spirit and scope of the general concept as defined by the claims and their equivalents, this invention is not limited to the specific details, representative devices and illustrated examples shown and described herein.

Claims

1. A self-balancing device for a single winch lifting device, characterized in that, include: Support frame (1), which is mounted on the hoist of the winch; Rotating rod (2), which is rotatably mounted on support frame (1); A balance block (3) is provided with a bushing (31), which is sleeved on the rotating rod (2); The driving component (4) is installed on one side of the support frame (1) and connected to the rotating rod (2). The driving component (4) drives the rotating rod (2) to rotate on the support frame (1). The rotating rod (2) cooperates with the bushing (31) to drive the balance block (3) to move to the left or right to change the center of gravity of the lifting device, thereby achieving the function of keeping the lifting device balanced.

2. The self-balancing device for a single winch lifting device as described in claim 1, characterized in that, The support frame (1) is provided with a bearing seat (11) with bearings, and the rotating rod (2) is installed in the bearing of the bearing seat (11).

3. The self-balancing device for a single winch lifting device as described in claim 2, characterized in that, One end of the rotating rod (2) is provided with a coupling (21), and the driving component (4) is connected to the coupling (21) through the bearing of the bearing seat (11).

4. The self-balancing device for a single winch lifting device as described in claim 1, characterized in that, The support frame (1) is equipped with a sensor (12).

5. The self-balancing device for a single winch lifting device as described in claim 1, characterized in that, An angle sensor (13) is installed on the support frame (1).

6. The self-balancing device for a single winch lifting device as described in claim 1, characterized in that, A battery (14) is also provided on one side of the support frame (1), and the battery (14) is electrically connected to the drive component (4).

7. The self-balancing device for a single winch lifting device as described in claim 6, characterized in that, On the other side of the support frame (1), there is also a miniature control cabinet (15) with a control panel. The miniature control cabinet (15) is electrically connected to the battery (14). The drive unit (4), sensor (12) and angle sensor (13) are all electrically connected to the miniature control cabinet (15).

8. The self-balancing device for a single winch lifting device as described in claim 1, characterized in that, The bottom of the balance block (3) is equipped with a pulley (32), and the balance block (3) can move on the support frame (1) through the pulley (32) contacting the support frame (1).

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