Balanced electric hoist

By adjusting the counterweight through a transmission mechanism and a balance sensor, the swaying problem of the electric hoist when lifting heavy objects is solved, achieving balanced operation of the electric hoist and improving safety.

CN223837006UActive Publication Date: 2026-01-27OSHA INTELLIGENT SYST (SHANGHAI) CO LTD
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Patent Information

Application Number
CN202520080572.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-14
Publication Date
2026-01-27
Estimated Expiration
2035-01-14

AI Technical Summary

Technical Problem

When existing electric hoists lift heavy objects, the wire rope is prone to swaying, causing the goods to shake, which poses a safety hazard and may result in damage to the goods and safety accidents.

Method used

A balanced electric hoist was designed. The transmission mechanism drives the traveling wheel to move on the track, the auxiliary wheel positions the track, the balance sensor detects the balance status of the electric hoist, and the second servo motor drives the bevel gear to adjust the counterweight to maintain balance and reduce the swaying of the hoisting rope.

Benefits of technology

It effectively maintains the balance of the electric hoist during operation, prevents track deformation, reduces rope swaying, and improves safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a balancing electric hoist which comprises a vertical plate, the tail end of a main shaft of a first servo motor is fixedly connected with a small gear, the outer side of a large gear is fixedly connected with a traveling wheel, the top end of a transverse plate is fixedly connected with a fixing piece, the inner side of the fixing piece is rotationally connected with a balancing weight, and the balancing weight is fixedly connected with a second servo motor. According to the electric hoist, the two transmission mechanisms are arranged to drive the advancing wheels to advance on the track, the auxiliary wheels position the front side and the rear side of the track, the balance sensor on the transverse plate senses the balance state of the electric hoist in the operation process, and then balance information is transmitted to the processor in the controller to be analyzed and processed; a second servo motor drives a bevel gear to enable a rotating shaft to drive a balancing weight to turn over, active balance adjustment is conducted on the electric hoist, the electric hoist can be kept in a balanced state in the running process, and therefore the situation that the electric hoist extrudes a track and deforms the track is avoided, shaking of a lifting rope is relieved when the electric hoist hoists a heavy object, and the safety of the lifting rope is improved. And the use safety is improved.
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Description

Technical Field

[0001] This utility model relates to the field of electric hoist technology, and more specifically, to a balanced electric hoist. Background Technology

[0002] Electric hoists are widely used for lifting heavy objects in industrial production, logistics handling, and construction. However, existing electric hoists have a safety issue due to cargo swaying during actual use. When an electric hoist lifts a heavy object via a wire rope, the wire rope is prone to swaying. This swaying causes the hook to sway as well, resulting in cargo swaying. If the cargo sways and hits other objects, it may cause damage or even lead to a safety accident, posing a potential threat to surrounding personnel and other equipment.

[0003] There are currently no effective solutions to the problems in the relevant technologies. Utility Model Content

[0004] In view of the problems in the related technologies, this utility model proposes a balanced electric hoist to overcome the above-mentioned technical problems existing in the existing related technologies.

[0005] Therefore, the specific technical solution adopted by this utility model is as follows:

[0006] A balancing electric hoist includes a vertical plate. A first servo motor is fixedly installed at the center of the outer side of the vertical plate. A small gear is fixedly connected to the end of the main shaft of the first servo motor. A large gear is meshed with the outer side of the small gear. A travel wheel is fixedly connected to the outer side of the large gear. A connecting plate is fixedly installed at the top of the vertical plate by bolts. A horizontal plate is installed at the top of the connecting plate. A fixing member is fixedly connected to the top of the horizontal plate. A counterweight is rotatably connected to the inner side of the fixing member.

[0007] As a further embodiment of this utility model, the small gear is provided in two sets, and both the small gear and the large gear are rotatably connected to the vertical plate.

[0008] As a further embodiment of this utility model, a controller is fixedly connected to the outer side of the front upright plate, and the controller is connected to a control switch via a cable.

[0009] As a further embodiment of this utility model, a winch is installed at the lower end of the upright plate, a hoisting rope is installed on the winch, and a hook is installed on the outside of the hoisting rope.

[0010] As a further embodiment of this utility model, auxiliary wheels are installed on the inner edge of the upright plate, and four sets of auxiliary wheels are provided.

[0011] As a further embodiment of this utility model, a second servo motor is fixedly connected to the upper end of the horizontal plate, a first bevel gear is fixedly connected to the end of the main shaft of the second servo motor, a second bevel gear is meshed with the outer side of the first bevel gear, a rotating shaft is fixedly connected to the inner side of the second bevel gear, and the rotating shaft is fixedly connected to the counterweight.

[0012] As a further embodiment of this utility model, a balance sensor is fixedly connected to the center of the top of the horizontal plate, and a liquid metal ball is provided inside the cavity of the balance sensor.

[0013] The beneficial effects of this utility model are as follows:

[0014] This utility model, through the installation of a vertical plate, small gear, large gear, traveling wheel, auxiliary wheel, horizontal plate, balance sensor, and counterweight, etc., enables this electric hoist to drive the traveling wheel on the track via two sets of transmission mechanisms. The auxiliary wheel positions the front and rear sides of the track. The balance sensor on the horizontal plate senses the balance status of the electric hoist during operation and then transmits the balance information to the processor in the controller for analysis and processing. The second servo motor drives the bevel gear, causing the rotating shaft to rotate the counterweight, actively adjusting the balance of the electric hoist. This electric hoist can maintain a balanced state during operation, thereby preventing the electric hoist from squeezing the track, preventing track deformation, and reducing the swaying of the lifting rope when lifting heavy objects, thus improving safety. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of a balanced electric hoist according to an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the installation structure of the winch and the hoisting rope of a balanced electric hoist according to an embodiment of the present utility model.

[0018] Figure 3 This is a schematic diagram of the installation structure of the upright plate and the first servo motor of a balancing electric hoist according to an embodiment of the present utility model.

[0019] Figure 4 This is a schematic diagram of the installation structure of the pinion and gear of a balancing electric hoist according to an embodiment of the present utility model;

[0020] Figure 5This is a schematic diagram of the installation structure of a controller and control switch for a balanced electric hoist according to an embodiment of the present utility model;

[0021] Figure 6 This is a schematic diagram of the installation structure of the counterweight block of a balancing electric hoist according to an embodiment of the present utility model.

[0022] In the picture:

[0023] 1. Vertical plate; 2. First servo motor; 3. Pinion; 4. Large gear; 5. Traveling wheel; 6. Auxiliary wheel; 7. Winch; 8. Lifting rope; 9. Hook; 10. Controller; 11. Control switch; 12. Connecting plate; 13. Horizontal plate; 14. Fixing component; 15. Counterweight; 16. Second servo motor; 17. First bevel gear; 18. Second bevel gear; 19. Rotating shaft; 20. Balance sensor. Detailed Implementation

[0024] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0025] According to an embodiment of the present invention, a balanced electric hoist is provided.

[0026] Please refer to the instruction manual appendix. Figure 1-5 According to an embodiment of the present utility model, a balanced electric hoist includes a vertical plate 1. A first servo motor 2 is fixedly installed at the center of the outer side of the vertical plate 1. A small gear 3 is fixedly connected to the end of the main shaft of the first servo motor 2. A large gear 4 is meshed with the outer side of the small gear 3. A travel wheel 5 is fixedly connected to the outer side of the large gear 4. A connecting plate 12 is fixedly installed at the top of the vertical plate 1 by bolts. A horizontal plate 13 is installed at the top of the connecting plate 12. A fixing member 14 is fixedly connected to the top of the horizontal plate 13. A counterweight block 15 is rotatably connected to the inner side of the fixing member 14.

[0027] The electric hoist is installed on the track. Pressing the control switch 11 drives the electrical components to move via the controller 10. The first servo motor 2 turns on, driving the pinion 3 to rotate. The pinion 3 drives the large gear 4 to rotate, which in turn drives the travel wheel 5 to rotate, thus driving the electric hoist to move on the track. The auxiliary wheel 6 passively reduces the tilt of the electric hoist. The goods are lifted by the hook 9, and the winch 7 drives the hoisting rope 8 to wind up and down. The balance sensor 20 senses the balance of the electric hoist and turns on the second servo motor 16, driving the first bevel gear 17 to rotate. The first bevel gear 17 drives the second bevel gear 18 to rotate, and the second bevel gear 18 drives the rotating shaft 19 to drive the counterweight 15 to move. This can actively adjust the balance of the electric hoist, allowing it to maintain balance during operation. This prevents the electric hoist from squeezing the track and causing track deformation, and also reduces the swaying of the hoisting rope when lifting heavy objects, improving safety.

[0028] In one embodiment, please refer to the appendix to the specification. Figure 1-5 As a further embodiment of this utility model, the small gear 3 is provided in two sets, and both the small gear 3 and the large gear 4 are rotatably connected to the vertical plate 1.

[0029] The first servo motor 2 drives the small gear 3 to rotate, which in turn drives the large gear 4 to rotate.

[0030] In one embodiment, please refer to the appendix to the specification. Figure 1-5 As a further embodiment of this utility model, a controller 10 is fixedly connected to the outer side of the front end plate 1, and the controller 10 is connected to a control switch 11 via a cable.

[0031] The control switch 11 enables the controller 10 to drive the electrical components to work.

[0032] In one embodiment, please refer to the appendix to the specification. Figure 1-5 As a further embodiment of this utility model, a winch 7 is installed at the lower end of the upright plate 1, a hoisting rope 8 is installed on the winch 7, and a hook 9 is installed on the outer side of the hoisting rope 8.

[0033] The winch 7 can drive the hoisting rope 8 to raise and lower the hook 9.

[0034] In one embodiment, please refer to the appendix to the specification. Figure 1-5 As a further embodiment of this utility model, an auxiliary wheel 6 is installed on the inner edge of the upright plate 1, and the auxiliary wheel 6 is provided in 4 sets.

[0035] The auxiliary wheel 6 can passively adjust the tilt of the electric hoist.

[0036] In one embodiment, please refer to the appendix to the specification. Figure 1-5As a further embodiment of this utility model, a second servo motor 16 is fixedly connected to the upper end of the horizontal plate 13, a first bevel gear 17 is fixedly connected to the end of the main shaft of the second servo motor 16, a second bevel gear 18 is meshed with the outer side of the first bevel gear 17, a rotating shaft 19 is fixedly connected to the inner side of the second bevel gear 18, and the rotating shaft 19 is fixedly connected to the counterweight block 15.

[0037] Turning on the second servo motor 16 drives the first bevel gear 17 to rotate, the first bevel gear 17 drives the second bevel gear 18 to rotate, and the second bevel gear 18 drives the rotating shaft 19 to drive the counterweight 15 to move, which can actively adjust the balance of the electric hoist.

[0038] In one embodiment, please refer to the appendix to the specification. Figure 1-5 As a further embodiment of this utility model, a balance sensor 20 is fixedly connected to the center of the top of the horizontal plate 13, and a liquid metal ball is provided in the cavity of the balance sensor 20.

[0039] When the liquid metal ball inside the balance sensor 20 loses its balance, it rolls, thereby sensing the overall balance state of the electrical sensing device.

[0040] In use, the electric hoist is installed on the track. Pressing the control switch 11 drives the electrical components to move via the controller 10. The first servo motor 2 turns on, driving the pinion 3 to rotate. The pinion 3 then drives the large gear 4 to rotate, which in turn drives the travel wheel 5 to rotate, thus driving the electric hoist to move on the track. The auxiliary wheel 6 passively reduces the tilt of the electric hoist. The goods are lifted by the hook 9, and the winch 7 drives the hoisting rope 8 to wind up and down. The balance sensor 20 senses the balance of the electric hoist and turns on the second servo motor 16, driving the first bevel gear 17 to rotate. The first bevel gear 17 drives the second bevel gear 18 to rotate, which in turn drives the rotating shaft 19 to move the counterweight 15. This actively adjusts the balance of the electric hoist, allowing it to maintain balance during operation. This prevents the electric hoist from squeezing the track and causing deformation. It also reduces the swaying of the hoisting rope when lifting heavy objects, improving safety.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A balancing electric hoist, comprising a vertical plate (1), characterized in that: A first servo motor (2) is fixedly installed on the outer center of the upright plate (1). A small gear (3) is fixedly connected to the end of the main shaft of the first servo motor (2). A large gear (4) is meshed with the outer side of the small gear (3). A traveling wheel (5) is fixedly connected to the outer side of the large gear (4). A connecting plate (12) is fixedly installed on the top of the upright plate (1) by bolts. A horizontal plate (13) is installed on the top of the connecting plate (12). A fixing member (14) is fixedly connected to the top of the horizontal plate (13). A counterweight (15) is rotatably connected to the inner side of the fixing member (14).

2. The balanced electric hoist according to claim 1, characterized in that: The small gear (3) is provided in two sets, and both the small gear (3) and the large gear (4) are rotatably connected to the vertical plate (1).

3. The balancing electric hoist according to claim 1, characterized in that: A controller (10) is fixedly connected to the outside of the front plate (1), and the controller (10) is connected to a control switch (11) via a cable.

4. A balancing electric hoist according to claim 1, characterized in that: A winch (7) is installed at the lower end of the upright plate (1), a hoisting rope (8) is installed on the winch (7), and a hook (9) is installed on the outside of the hoisting rope (8).

5. A balancing electric hoist according to claim 1, characterized in that: The inner edge of the upright plate (1) is equipped with auxiliary wheels (6), and the auxiliary wheels (6) are provided in 4 sets.

6. A balancing electric hoist according to claim 1, characterized in that: The upper end of the horizontal plate (13) is fixedly connected to a second servo motor (16), the end of the main shaft of the second servo motor (16) is fixedly connected to a first bevel gear (17), the outer side of the first bevel gear (17) is meshed with a second bevel gear (18), the inner side of the second bevel gear (18) is fixedly connected to a rotating shaft (19), and the rotating shaft (19) is fixedly connected to a counterweight (15).

7. A balancing electric hoist according to claim 1, characterized in that: A balance sensor (20) is fixedly connected to the center of the top of the horizontal plate (13), and a liquid metal ball is provided in the cavity of the balance sensor (20).