A hoisting device for gearbox maintenance

Abstract

The utility model belongs to gear box maintenance technical field especially relates to a hoist device for gear box maintenance, including stand and the ground bolt connected in stand bottom, the top of stand is connected with truss, the side of truss is connected with connecting frame, and the bottom of connecting frame is provided with maintenance box, and the inside of maintenance box is provided with adjusting mechanism, and the side of maintenance box is connected with positioning mechanism, and adjusting mechanism includes slide rail, sliding block, limit block, bearing plate, carousel, positioning hole, connecting rod and positioning column. The hoist device for gear box maintenance, through control switch control self -locking hook elevatrix, adjust to appropriate height, pull the connecting column to the both sides and drive telescopic link to elongate, then pull the magnetic lifting plate to the both sides, make the magnetic lifting plate enter the inside of the sliding slot, make the magnetic lifting plate adsorb in the inner wall of the sliding slot, thereby fix the maintenance box, prevent the maintenance box from happening to shake and rotate in the maintenance process, cause the danger to the staff around.

Description

Technical Field

[0001] This utility model relates to the field of gearbox repair technology, specifically a hoisting device for gearbox repair. Background Technology

[0002] In modern industrial production, gearboxes, as core components of mechanical equipment transmission systems, are widely used in wind power generation, marine propulsion, and construction machinery. Due to prolonged high-load operation, gears, bearings, and other components inside gearboxes are prone to wear, breakage, and other malfunctions, requiring regular disassembly, inspection, and replacement. Therefore, their maintenance is crucial. During gearbox maintenance, because gearboxes are typically heavy and bulky—some large gearboxes can weigh several tons—lifting equipment is often used to facilitate disassembly, installation, and transportation.

[0003] Existing gearbox maintenance hoisting devices cannot limit the hook during lifting and lowering, which can easily cause the gearbox to sway in strong winds, posing a danger to nearby workers. Utility Model Content

[0004] The purpose of this utility model is to provide a hoisting device for gearbox maintenance, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hoisting device for gearbox maintenance, comprising a column and ground bolts connected to the bottom of the column, a truss connected to the top of the column, a connecting frame connected to the side of the truss, a maintenance box provided at the bottom of the connecting frame, an adjustment mechanism provided inside the maintenance box, and a positioning mechanism connected to the side of the maintenance box. The adjustment mechanism includes a slide rail, a slider, a limit block, a load-bearing plate, a turntable, a positioning hole, a connecting rod, and a positioning post. The slide rail is fixedly installed on the bottom of the inner wall of the maintenance box. The slider is slidably connected to the inside of the slide rail. The limit block is fixedly connected to the front and rear sides of the inside of the slide rail. The load-bearing plate is fixedly connected to the top of the slider. The turntable is rotatably connected to the top of the load-bearing plate. The positioning hole is opened on the upper surface of the load-bearing plate. The connecting rod is fixedly connected to the side of the turntable. The positioning post is slidably connected to the inside of the positioning hole.

[0006] Preferably, the height of the load-bearing plate is higher than the height of the limiting block, the connecting rod has a through hole inside, and the positioning column is slidably connected inside the through hole.

[0007] Preferably, the positioning mechanism includes a fixed column, a sliding groove, a magnetic lifting plate, a connecting column, and a telescopic rod. The fixed column is fixedly installed on the side of the column, the sliding groove is formed inside the fixed column, the telescopic rod is fixedly connected to the left and right sides of the maintenance box, the connecting column is fixedly connected to the end of the telescopic rod away from the maintenance box, and the magnetic lifting plate is slidably connected inside the connecting column.

[0008] Preferably, the interior of the chute is made of iron, and the interior of the connecting column has a through groove, with the two magnetic lifting plates slidably connected inside the through groove.

[0009] Preferably, a pulley is slidably connected inside the connecting frame, a sliding plate is fixedly connected to the bottom of the pulley, a locking sleeve is fixedly connected to the bottom of the sliding plate, and a movable frame is connected inside the locking sleeve by bolts.

[0010] Preferably, the movable frame is internally slidably connected to a second pulley, the bottom of the second pulley is fixedly connected to a connecting rod, and the bottom of the connecting rod is fixedly connected to a lifting box.

[0011] Preferably, the lifting box is a G80 lifting eye self-locking hook, the bottom of the lifting box is connected to a control switch, the inside of the lifting box is connected to a chain through a transmission mechanism, the bottom of the chain is fixedly connected to a connector, and the bottom of the connector is connected to the top of the maintenance box through a hook.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This gearbox repair hoisting device uses a control switch to raise and lower the G80 lifting eye self-locking hook. After adjusting to a suitable height, the connecting column is pulled to both sides to extend the telescopic rod. Then, the magnetic lifting plate is pulled forward and backward to enter the interior of the slide groove, where it adheres to the inner wall of the slide groove, thus fixing the repair box in place and preventing it from shaking or rotating during repair, which could pose a danger to surrounding personnel.

[0013] 2. The hoisting device for gearbox maintenance, after placing the gearbox, rotates the turntable to make it rotate on the surface of the load-bearing plate, rotates the connecting rod to the top of the positioning hole, and pushes the positioning pin downward to make the positioning pin enter the interior of the positioning hole, thus fixing the turntable and preventing it from rotating, reducing the risk of injury to maintenance personnel caused by the turntable moving during maintenance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the repair box of this utility model; Figure 3This is a schematic diagram of the sliding mechanism structure of this utility model; Figure 4 This is a schematic diagram of the truss structure of this utility model; Figure 5 This is a schematic diagram of the sliding structure of the truss and connecting frame of this utility model; Figure 6 This is a schematic diagram of the pulley structure of this utility model; Figure 7 This is a schematic diagram of the lifting box structure of this utility model.

[0015] In the diagram: 1. Column; 2. Ground bolt; 3. Truss; 4. Connecting frame; 5. Movable frame; 501. Locking sleeve; 502. Sliding plate; 503. Pulley one; 6. Lifting box; 601. Connecting rod; 602. Chain; 603. Connector; 604. Control switch; 605. Pulley two; 7. Maintenance box; 701. Slide rail; 702. Sliding block; 703. Limit block; 704. Load-bearing plate; 705. Turntable; 706. Positioning hole; 707. Connecting rod; 708. Positioning column; 709. Fixed column; 710. Slide groove; 711. Magnetic lifting plate; 712. Connecting column; 713. Telescopic rod. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example 1: To address the problem in existing technologies where the hook cannot effectively limit its movement during lifting and lowering, leading to gearbox swaying in strong winds, please refer to [link to relevant documentation]. Figures 1-7 This utility model provides a technical solution: A hoisting device for gearbox maintenance includes a column 1 and a ground bolt 2 connected to the bottom of the column 1. A truss 3 is connected to the top of the column 1, a connecting frame 4 is connected to the side of the truss 3, a maintenance box 7 is provided at the bottom of the connecting frame 4, an adjustment mechanism is provided inside the maintenance box 7, and a positioning mechanism is connected to the side of the maintenance box 7. The adjustment mechanism includes a slide rail 701, a slider 702, a limiting block 703, a load-bearing plate 704, a turntable 705, a positioning hole 706, a connecting rod 707, and a positioning post 708. The slide rail 701 is fixedly installed on the bottom of the inner wall of the maintenance box 7. The slider 702 is slidably connected to the inside of the slide rail 701. The limiting block 703 is fixedly connected to the front and rear sides of the inside of the slide rail 701. The load-bearing plate 704 is fixedly connected to the top of the slider 702. The turntable 705 is rotatably connected to the top of the load-bearing plate 704. The positioning hole 706 is opened on the upper surface of the load-bearing plate 704. The connecting rod 707 is fixedly connected to the side of the turntable 705. The positioning post 708 is slidably connected to the inside of the positioning hole 706. The height of the load-bearing plate 704 is higher than the height of the limiting block 703. A through hole is opened inside the connecting rod 707. The positioning post 708 is slidably connected to the inside of the through hole.

[0018] After the gearbox is placed, the turntable 705 is rotated on the surface of the load-bearing plate 704, and the connecting rod 707 is rotated to the top of the positioning hole 706. The positioning pin 708 is pushed down so that it enters the interior of the positioning hole 706, thus fixing the turntable 705 and preventing it from rotating. This reduces the risk of injury to maintenance personnel caused by the movement of the turntable 705 during maintenance.

[0019] The positioning mechanism includes a fixed column 709, a slide groove 710, a magnetic lifting plate 711, a connecting column 712, and a telescopic rod 713. The fixed column 709 is fixedly installed on the side of the column 1. The slide groove 710 is opened inside the fixed column 709. The telescopic rod 713 is fixedly connected to the left and right sides of the maintenance box 7. The connecting column 712 is fixedly connected to the end of the telescopic rod 713 away from the maintenance box 7. The magnetic lifting plate 711 is slidably connected to the inside of the connecting column 712. The inside of the slide groove 710 is made of iron. The inside of the connecting column 712 has a through groove. A self-locking slide rail is installed inside the through groove. The two magnetic lifting plates 711 slide inside the through groove via the self-locking slide rail.

[0020] A movable frame 5 is fixedly connected to the bottom of the connecting frame 4. A second pulley 605 is slidably connected inside the movable frame 5. A connecting rod 601 is fixedly connected to the bottom of the second pulley 605. A lifting box 6 is fixedly connected to the bottom of the connecting rod 601. By pushing the connecting rod 601, the second pulley 605 can slide inside the movable frame 5, thereby adjusting the position of the maintenance box 7.

[0021] The lifting box 6 is a G80 lifting eye self-locking hook. The bottom of the lifting box 6 is connected to a control switch 604. The inside of the lifting box 6 is connected to a chain 602 through a transmission mechanism. The bottom of the chain 602 is fixedly connected to a connector 603. The bottom of the connector 603 is connected to the top of the maintenance box 7 through a hook. The transmission mechanism inside the lifting box 6 is a motor that drives the rotating shaft to rotate. The outer surface of the rotating shaft is fitted with a chain. The start and stop of the motor are controlled by the control switch 604.

[0022] Example 2: In actual use, the inability of the movable frame 5 to move will make it inconvenient for the maintenance box 7 to move laterally. Therefore, this application has a pulley 503 slidably connected inside the connecting frame 4. A sliding plate 502 is fixedly connected to the bottom of the pulley 503. A locking sleeve 501 is fixedly connected to the bottom of the sliding plate 502. The inside of the locking sleeve 501 is connected to the movable frame 5 by bolts.

[0023] By pushing the movable frame 5, the locking sleeve 501 and the sliding plate 502 can drive the pulley 503 to slide inside the connecting frame 4, thereby adjusting the lateral position of the movable frame 5 and facilitating the lateral movement of the maintenance box 7.

[0024] Working principle: When repairing the gearbox, first push the load-bearing plate 704 to drive the slider 702 to slide within the slide rail 701, pulling out the load-bearing plate 704 and turntable 705. Then place the gearbox inside the repair box 7, positioning it on top of the turntable 705. Next, push the load-bearing plate 704 to insert the turntable 705 and gearbox. Control the G80 lifting eye self-locking hook to raise and lower via the control switch 604. After adjusting to the appropriate height, pull the connecting column 712 to both sides to extend the telescopic rod 713. Then pull the magnetic lifting plate 711 forward and backward to enter the interior of the slide groove 710, allowing the magnetic lifting plate 711 to adhere to the inner wall of the slide groove 710, thereby fixing the repair box 7 and preventing it from shaking or rotating during repair, thus avoiding danger to surrounding personnel.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A hoisting device for gearbox maintenance, comprising a column (1) and a ground bolt (2) connected to the bottom of the column (1), characterized in that: The top of the column (1) is connected to a truss (3), the side of the truss (3) is connected to a connecting frame (4), the bottom of the connecting frame (4) is provided with a maintenance box (7), the inside of the maintenance box (7) is provided with an adjustment mechanism, and the side of the maintenance box (7) is connected to a positioning mechanism. The adjustment mechanism includes a slide rail (701), a slider (702), a limiting block (703), a load-bearing plate (704), a turntable (705), a positioning hole (706), a connecting rod (707), and a positioning column (708). The slide rail (701) is fixedly installed on the bottom of the inner wall of the maintenance box (7). The slider (702) is slidably connected to the inside of the slide rail (701). The limiting block (703) is fixedly connected to the front and rear sides of the inside of the slide rail (701). The load-bearing plate (704) is fixedly connected to the top of the slider (702). The turntable (705) is rotatably connected to the top of the load-bearing plate (704). The positioning hole (706) is opened on the upper surface of the load-bearing plate (704). The connecting rod (707) is fixedly connected to the side of the turntable (705). The positioning column (708) is slidably connected to the inside of the positioning hole (706).

2. The hoisting device for gearbox maintenance according to claim 1, characterized in that: The height of the load-bearing plate (704) is higher than the height of the limiting block (703), the connecting rod (707) has a through hole inside, and the positioning column (708) is slidably connected to the inside of the through hole.

3. The hoisting device for gearbox maintenance according to claim 1, characterized in that: The positioning mechanism includes a fixed column (709), a sliding groove (710), a magnetic lifting plate (711), a connecting column (712), and a telescopic rod (713). The fixed column (709) is fixedly installed on the side of the column (1). The sliding groove (710) is opened inside the fixed column (709). The telescopic rod (713) is fixedly connected to the left and right sides of the maintenance box (7). The connecting column (712) is fixedly connected to the end of the telescopic rod (713) away from the maintenance box (7). The magnetic lifting plate (711) is slidably connected inside the connecting column (712).

4. The hoisting device for gearbox maintenance according to claim 3, characterized in that: The interior of the slide (710) is made of iron, and the interior of the connecting column (712) is provided with a through groove. The two magnetic lifting plates (711) are slidably connected inside the through groove.

5. A hoisting device for gearbox maintenance according to claim 1, characterized in that: The connecting frame (4) is slidably connected to a pulley (503), and a sliding plate (502) is fixedly connected to the bottom of the pulley (503). A locking sleeve (501) is fixedly connected to the bottom of the sliding plate (502), and a movable frame (5) is bolted to the inside of the locking sleeve (501).

6. A hoisting device for gearbox maintenance according to claim 5, characterized in that: The movable frame (5) is internally slidably connected to a pulley two (605), and the bottom of the pulley two (605) is fixedly connected to a connecting rod (601), and the bottom of the connecting rod (601) is fixedly connected to a lifting box (6).

7. A hoisting device for gearbox maintenance according to claim 6, characterized in that: The lifting box (6) is a G80 lifting eye self-locking hook. The bottom of the lifting box (6) is connected to a control switch (604). The inside of the lifting box (6) is connected to a chain (602) through a transmission mechanism. The bottom of the chain (602) is fixedly connected to a connector (603). The bottom of the connector (603) is connected to the top of the maintenance box (7) through a hook.

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