Movable electric lifting machine

Abstract

The invention discloses a movable electric lifting machine, and relates to the technical field of lifting machines. The electric lifting machine comprises a vehicle frame, a mounting frame, a lifting arm, a first traction mechanism, a second traction mechanism and a controller, and the mounting frame is arranged at the top of the vehicle frame through a rotating disc and rotates relative to the vehicle frame through the rotating disc. The suspension arm, the first traction mechanism and the second traction mechanism are arranged on the mounting frame, and the controller is connected with the first traction mechanism. A lifting hook is arranged on the lifting arm, and the first traction mechanism is connected with the lifting hook through a steel wire rope; a first fixed pulley is arranged on the suspension arm, and the second traction mechanism is connected with the first fixed pulley through a steel wire rope. Through cooperation of the first traction mechanism and the second traction mechanism, lifting or descending of materials and the lifting arm can be achieved, meanwhile, the rotating disc is used for rotating, flexible carrying of the materials is achieved, the labor cost can be effectively saved, and the working efficiency is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of hoisting machine technology, and more particularly to a mobile electric hoisting machine. Background Technology

[0002] In coal mine production, large quantities of materials such as cement slabs, steel components, and pipelines are stored on the surface to ensure the normal operation of underground work. These materials are generally heavy, diverse in size, and densely stacked, and their storage locations are inconvenient for large machinery. Therefore, the loading, unloading, sorting, and transfer of materials to transport vehicles usually require manual handling. However, manual handling presents several problems: First, due to the weight of the materials, manual handling is very difficult and inefficient; second, the high labor intensity increases the risk of injury to workers during handling, affecting their health. Summary of the Invention

[0003] In view of the problems of high labor intensity, low work efficiency, and easy injury to workers in the current method of manually handling materials, the present invention discloses a mobile electric hoist.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] The mobile electric hoist includes a frame, a mounting frame, a boom, a first traction mechanism, a second traction mechanism, and a controller. The mounting frame is mounted on top of the frame via a turntable and rotates relative to the frame using the turntable. The boom, the first traction mechanism, and the second traction mechanism are mounted on the mounting frame, and the controller is connected to the first traction mechanism. A hook is provided on the boom, and the first traction mechanism is connected to the hook via a wire rope. A first fixed pulley is provided on the boom, and the second traction mechanism is connected to the first fixed pulley via a wire rope.

[0006] Furthermore, the vehicle frame includes a chassis, wheels, and support legs. The two wheels are located at the bottom of the chassis, and the support legs are located at the four corners of the chassis. A trailer is fixedly connected to the rear of the chassis, and the trailer has hook holes.

[0007] Furthermore, the mounting frame is stepped, including a first step plate and a second step plate, with the second step plate located behind and higher than the first step plate. The bottom end of the boom is hinged to the front of the first step plate, the first traction structure is fixed to the first step plate, and the second traction mechanism is fixed to the second step plate.

[0008] Furthermore, the first fixed pulley is fixed to the upper part of the boom, the lower part of the boom is fixed with a second fixed pulley, and the upper end is provided with a third fixed pulley.

[0009] Furthermore, the top of the boom is provided with a receiving groove adapted to the wire rope. The wire rope of the first traction structure is laid in the receiving groove through the second fixed pulley and connected to the hook through the third fixed pulley.

[0010] Furthermore, the first pulling mechanism includes a motor, a first reducer, a first drum, and a first support. The motor is connected to the first reducer, the first reducer is rotatably connected to the first support via a first rotating shaft, and the first drum is fixed on the first rotating shaft.

[0011] Furthermore, a number of batteries are fixedly connected to the mounting bracket, and the batteries are respectively connected to the controller and the first motor.

[0012] Furthermore, the second pulling mechanism includes a hand crank, a second reducer, a second drum, and a second support. The hand crank is connected to the second reducer in a transmission manner. The second reducer is rotatably connected to the second support via a second rotating shaft. The second drum is fixed on the second rotating shaft.

[0013] Furthermore, a rotating handle is fixed to the rear of the mounting bracket.

[0014] Furthermore, the hook includes a movable pulley and a hook portion, wherein the hook portion is fixedly connected to the movable pulley.

[0015] The beneficial effects of this invention are as follows: By cooperating with a first traction mechanism and a second traction mechanism, this invention enables the lifting or lowering of materials and the boom. Simultaneously, the rotation of the turntable allows for flexible material handling, effectively saving labor costs, reducing labor intensity, and significantly improving work efficiency. This invention achieves overall free movement through either a push-pull mechanism using two wheels or a vehicle-towed mechanism using a trailer, without being limited by the application location, making it suitable for material handling in confined spaces. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic representation of the structural principle of one embodiment of the present invention.

[0017] Figure 2 As shown Figure 1 The right-side view.

[0018] Figure 3 As shown Figure 1 Top view.

[0019] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Wheel; 3. Support leg; 4. Trailer; 5. Turntable; 6. First step; 7. Second step; 8. Rotating handle; 9. First reducer; 10. Motor; 11. Second reducer; 12. Hand crank; 13. Boom; 14. First fixed pulley; 15. Second fixed pulley; 16. Third fixed pulley; 17. Hook; 18. First drum; 19. Second drum; 20. Battery. Detailed Implementation

[0020] This invention discloses a mobile electric hoist, and one embodiment of the invention is described in detail below with reference to the accompanying drawings.

[0021] like Figure 1 As shown, the mobile electric hoist includes a frame 1, a mounting frame, a boom 13, a first traction mechanism, a second traction mechanism, and a controller. A turntable 5 is fixedly connected to the top of the frame 1. The mounting frame is fixed to the top of the turntable 5 and rotates relative to the frame 1 using the turntable 5. The frame 1 includes a chassis, wheels 2, and support legs 3. The chassis is approximately rectangular, and a trailer 4 is fixedly connected to the rear end of the chassis. The trailer 4 has hook holes for easy towing by other vehicles. Support legs 3 are provided at the four corners of the chassis. Each support leg 3 has a threaded rod, which is threaded to the support leg 3 and moves vertically relative to the support leg 3. A circular pad is fixed to the bottom of each support leg 3, increasing the contact area by contacting the ground or support surface.

[0022] Combination Figure 2 and Figure 3 As shown, the mounting frame is stepped, including a first step plate 6 and a second step plate 7. The second step plate 7 is located behind the first step plate 6 and is higher than the first step plate 6. A first pulling mechanism is mounted on the first step plate 6, and a second pulling mechanism is mounted on the second step plate 7. The bottom end of the boom 13 is hinged to the front of the first step plate 6 and can rotate relative to the mounting frame. The top of the boom 13 has a receiving groove, and a first fixed pulley 14 is fixedly connected to the upper part of the boom 13, and a second fixed pulley 15 is fixedly connected to the lower part of the boom 13. Both the first fixed pulley 14 and the second fixed pulley 15 are located above the receiving groove, and a third fixed pulley 16 is fixedly connected to the upper end of the boom 13. A rotating handle 8 is installed on the rear top of the mounting frame, and the operator rotates the mounting frame by rotating the handle 8.

[0023] The first pulling mechanism includes a motor 10, a first reducer 9, a first drum 18, and a first support. The motor 10 is connected to the first reducer 9 via a drive shaft, and the first reducer 9 is rotatably connected to the first support via a first rotating shaft. The first drum 18 is fixed on the first rotating shaft, and a steel wire rope is wound on the first drum 18. Several motors 10 are fixedly connected to the first step plate 6, and the battery 20 is connected to the controller and the first motors 10 respectively. The second pulling mechanism includes a hand crank 12, a second reducer 11, a second drum 19, and a second support. The hand crank 12 is connected to the second reducer 11, and under the action of external force, the second reducer 11 is driven by the hand crank 12. The second reducer 11 is rotatably connected to the second support via a second rotating shaft. The second drum 19 is fixed on the second rotating shaft, and a steel wire rope is wound on the second drum 19.

[0024] During installation, the worker pulls out the end of the wire rope wound on the first drum 18 in the first pulling mechanism, guides it through the second fixed pulley 15, and lays it appropriately in the receiving groove. Then, it passes through the third fixed pulley 16 to connect with the hook 17, and subsequently passes through the receiving groove again to be fixedly connected to the front of the first step plate 6. In this embodiment, the hook 17 includes a movable pulley and a hook portion, with the hook portion fixedly connected to the movable pulley. The worker pulls out the end of the wire rope wound on the second drum 19 in the second pulling mechanism, passes it through the first fixed pulley 14, and then fixes it to the front of the second step plate 7.

[0025] In operation, the electric hoist is pushed by the wheels 2 on the chassis or towed to the transport position by a vehicle using the trailer 4 located at the rear of the chassis. Then, the operator twists the threaded rod on the support leg 3, causing it to descend and ultimately using a pad to increase the contact area with the ground for overall support. The operator starts the motor 10 via the controller, which drives the first drum 18 to release the wire rope. Guided by the second and third fixed pulleys 15 and 16, the wire rope smoothly lowers the hook 17 to the material's location. A self-locking lifting device is connected to the hook 17 to clamp materials such as pipes. After the device clamps the pipe, the operator reverses the motor 10 via the controller, driving the first drum 18 to retract the wire rope, thereby lifting the material upwards. The operator drives the second reducer 11 by cranking the handle 12, which in turn rotates the second drum 19 to release or retract the wire rope, thereby raising or lowering the boom 13. In this embodiment, the second reducer 11 can be a worm gear reducer to achieve a self-locking function, preventing damage to materials caused by sudden descent of the boom 13. A handle is installed at the rear of the mounting frame, which the operator uses to rotate the mounting frame 360° relative to the chassis 1 for transferring materials.

[0026] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A mobile electric hoist, characterized in that: The system includes a frame (1), a mounting frame, a boom (13), a first traction mechanism, a second traction mechanism, and a controller. The mounting frame is mounted on the top of the frame (1) via a turntable (5) and rotates relative to the frame (1) using the turntable (5). The boom (13), the first traction mechanism, and the second traction mechanism are mounted on the mounting frame, and the controller is connected to the first traction mechanism. A hook (17) is provided on the boom (13), and the first traction mechanism is connected to the hook (17) via a wire rope. A first fixed pulley (14) is provided on the boom (13), and the second traction mechanism is connected to the first fixed pulley (14) via a wire rope.

2. The mobile electric hoist according to claim 1, characterized in that: The frame (1) includes a chassis, wheels (2) and support legs (3). Two wheels (2) are located at the bottom of the chassis. Support legs (3) are located at the four corners of the chassis. A trailer part (4) is fixedly connected to the rear of the chassis. The trailer part (4) has a hook hole.

3. The mobile electric hoist according to claim 1, characterized in that: The mounting bracket is stepped, including a first step plate (6) and a second step plate (7). The second step plate (7) is located behind the first step plate (6) and is higher than the first step plate (6). The bottom end of the boom (13) is hinged to the front of the first step plate (6), the first traction structure is fixed on the first step plate (6), and the second traction mechanism is fixed on the second step plate (7).

4. The mobile electric hoist according to claim 3, characterized in that: The first fixed pulley (14) is fixed to the upper part of the boom (13), the lower part of the boom (13) is fixed with a second fixed pulley (15), and the upper end is provided with a third fixed pulley (16).

5. The mobile electric hoist according to claim 4, characterized in that: The top of the boom (13) is provided with a receiving groove adapted to the wire rope. The wire rope of the first traction structure is laid in the receiving groove through the second fixed pulley (15) and connected to the hook (17) through the third fixed pulley (16).

6. The mobile electric hoist according to claim 1, characterized in that: The first traction mechanism includes a motor (10), a first reducer (9), a first drum (18), and a first support. The motor (10) is connected to the first reducer (9), and the first reducer (9) is rotatably connected to the first support through a first rotating shaft. The first drum (18) is fixed on the first rotating shaft.

7. The mobile electric hoist according to claim 6, characterized in that: Several batteries (20) are fixedly connected to the mounting bracket, and the batteries (20) are respectively connected to the controller and the first motor (10).

8. The mobile electric hoist according to claim 1, characterized in that: The second pulling mechanism includes a hand crank (12), a second reducer (11), a second drum (19), and a second bracket. The hand crank (12) is connected to the second reducer (11) in a transmission connection. The second reducer (11) is rotatably connected to the second bracket through a second rotating shaft. The second drum (19) is fixed on the second rotating shaft.

9. The mobile electric hoist according to claim 1, characterized in that: A rotating handle (8) is fixed to the rear of the mounting bracket.

10. The mobile electric hoist according to claim 1, characterized in that: The hook (17) includes a movable pulley and a hook, and the hook is fixedly connected to the movable pulley.

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