A lifting device for maintenance

Abstract

The utility model relates to the technical field of lifting for overhauling, and specifically discloses a lifting device for overhauling, which comprises two vertical plates distributed front and back, a lifting mechanism arranged between the two vertical plates, the lifting mechanism comprising two mounting plates fixedly connected between the two vertical plates and distributed vertically, a moving rod arranged above the mounting plate at the lower side, a threaded groove opened in the lower end surface of the moving rod, and a screw rod rotatably connected to the upper end surface of the mounting plate at the lower side, wherein the lifting device is manually pushed into the overhauling position inside the frame canopy of the blooming mill through a plurality of track wheels and tracks, and then a series of gear transmissions drive the screw rod to rotate, the screw rod cooperates with the threaded groove to drive the moving rod to move upward, and the anti-stuck cylinder is lifted through the moving rod and the bearing disc, so that the lifting device suitable for such narrow and low space stably lifts the blooming mill, improves the overhauling efficiency, reduces the labor intensity of workers, and fundamentally eliminates the safety hazards.

Description

Technical Field

[0001] This utility model relates to the field of lifting technology for maintenance, and specifically discloses a lifting device for maintenance. Background Technology

[0002] In the metallurgical industry, especially in H-beam steel production lines, the maintenance and repair of large equipment is a crucial link in ensuring continuous and stable production. As an important piece of equipment in the production line, the anti-jamming cylinder (or anti-stalling device) at the bottom of the pressing mechanism of the billet mill is a key component ensuring the safe operation of the equipment. This anti-jamming cylinder is typically installed inside the frame, directly below the pressing mechanism.

[0003] However, this specific installation location presents significant challenges for maintenance and replacement operations:

[0004] The anti-jamming cylinder is located inside the frame archway, in an extremely narrow and restricted space. The hooks and lifting tools of large lifting equipment cannot effectively reach into this area for lifting operations. The anti-jamming cylinder itself is quite heavy, weighing approximately 200 kilograms, and its installation position is about 1.7 meters above the ground inside the archway. This height is too high for manual handling, and the weight of 200 kilograms far exceeds the limit for safe operation by a single person or even two people. Therefore, a special and convenient lifting tool is needed that can stably lift components weighing up to 200 kilograms in such narrow and low spaces to overcome the shortcomings of existing technologies. Utility Model Content

[0005] This invention proposes a lifting device for maintenance, which is applicable to such narrow and low spaces and can stably lift components weighing up to 200 kg, thereby improving maintenance efficiency, reducing the labor intensity of workers, and fundamentally eliminating safety hazards.

[0006] This utility model is implemented as follows: a lifting device for maintenance includes two vertical plates distributed front and rear, and a lifting mechanism is provided between the two vertical plates;

[0007] The lifting mechanism includes two mounting plates fixedly connected between two vertical plates and distributed vertically. A movable rod is provided above the lower mounting plate. The lower end face of the movable rod has a threaded groove. A screw is rotatably connected to the upper end face of the lower mounting plate. The upper end of the screw extends into the threaded groove and is threadedly connected to the threaded groove. A first gear is fixedly connected to the outer wall of the screw. A first rotating shaft is rotatably connected between the two mounting plates. A second gear that meshes with the first gear is fixedly connected to the outer wall of the first rotating shaft.

[0008] As a preferred embodiment of the maintenance lifting device of this utility model, a worm gear located above the second gear is fixedly connected to the outer wall of the first rotating shaft, a worm gear meshing with the worm gear is rotatably connected between the two vertical plates, and a first bevel gear located behind the first rotating shaft is fixedly connected to the outer wall of the worm gear.

[0009] As a preferred embodiment of the maintenance lifting device of this utility model, two sets of side plates distributed on the left and right are fixedly connected between the two vertical plates, and a limiting groove is fixedly connected to one side wall of each of the two sets of side plates facing each other. The left and right side walls of the moving rod are fixedly connected with limiting strips that match the two limiting grooves respectively.

[0010] As a preferred embodiment of the maintenance lifting device of this utility model, a bearing plate is fixedly connected to the upper end face of the moving rod, and anti-slip particles are provided on the upper end face of the bearing plate.

[0011] As a preferred embodiment of the maintenance lifting device of this utility model, a second rotating shaft is rotatably connected to the upper end face of the mounting plate above, and the lower end of the second rotating shaft extends to the lower part of the mounting plate above and is fixedly connected to a second bevel gear that meshes with the first bevel gear.

[0012] As a preferred embodiment of the maintenance lifting device of this utility model, two left-right distributed track wheels are rotatably connected to the lower ends of the opposite side walls of the two vertical plates.

[0013] As a preferred embodiment of the maintenance lifting device of this utility model, a torsion block is fixedly connected to the upper end of the second rotating shaft.

[0014] The beneficial effects of this utility model are:

[0015] The lifting device is manually pushed to the maintenance position inside the billet machine frame using multiple track wheels and tracks. Then, a series of gears drive the screw to rotate, and the screw, in conjunction with the threaded groove, moves the moving rod upward. The moving rod and the bearing plate lift the anti-jamming cylinder, thereby stably lifting the billet machine using this lifting device suitable for such narrow and low spaces, improving maintenance efficiency, reducing the labor intensity of workers, and fundamentally eliminating safety hazards. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a front cross-sectional view of the present invention.

[0019] Figure 3 This is a top view cross-sectional structural diagram of the present invention.

[0020] The markings in the diagram are: 1. Vertical plate; 2. Mounting plate; 3. Moving rod; 4. Threaded groove; 5. Screw; 6. First gear; 7. First shaft; 8. Second gear; 9. Worm gear; 10. Worm; 11. First bevel gear; 12. Side plate; 13. Limiting groove; 14. Limiting strip; 15. Bearing plate; 16. Second shaft; 17. Second bevel gear; 18. Track wheel; 19. Torsion block. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0022] Please see Figure 1-3 A maintenance lifting device includes two vertical plates 1 distributed front and rear, and a lifting mechanism is provided between the two vertical plates 1;

[0023] The lifting mechanism includes two mounting plates 2 fixedly connected between two vertical plates 1 and distributed vertically. A movable rod 3 is provided above the lower mounting plate 2. A threaded groove 4 is opened on the lower end face of the movable rod 3. A screw 5 is rotatably connected to the upper end face of the lower mounting plate 2. The upper end of the screw 5 extends into the interior of the threaded groove 4 and is threadedly connected to the threaded groove 4. A first gear 6 is fixedly connected to the outer wall of the screw 5. A first rotating shaft 7 is rotatably connected between the two mounting plates 2. A second gear 8 that meshes with the first gear 6 is fixedly connected to the outer wall of the first rotating shaft 7.

[0024] In this embodiment: During use, the lifting device is manually pushed to the maintenance position inside the billet machine frame using multiple track wheels 18 and tracks, aligning the bearing plate 15 with the support point. Then, the first rotating shaft 7 rotates, driving the second gear 8 to rotate. The second gear 8, in conjunction with the first gear 6, drives the screw 5 to rotate. The screw 5, in conjunction with the threaded groove 4, drives the moving rod 3 to move upward. The moving rod 3 drives the bearing plate 15 to move upward, bringing it into contact with the support point. Then, the moving rod 3 and the bearing plate 15 continue to move, thereby lifting the anti-jamming cylinder. Thus, this lifting device, suitable for such narrow and low spaces, stably lifts the billet machine, improves maintenance efficiency, reduces the labor intensity of workers, and fundamentally eliminates safety hazards.

[0025] As a technical optimization of this utility model, a worm gear 9 located above the second gear 8 is fixedly connected to the outer wall of the first rotating shaft 7, and a worm 10 meshing with the worm gear 9 is rotatably connected between the two vertical plates 1. A first bevel gear 11 located behind the first rotating shaft 7 is fixedly connected to the outer wall of the worm 10.

[0026] In this embodiment: the first bevel gear 11 rotates, the first bevel gear 11 drives the worm gear 10 to rotate, and the worm gear 10, in conjunction with the worm wheel 9, drives the first rotating shaft 7 to rotate.

[0027] As a technical optimization of this utility model, two sets of side plates 12 are fixedly connected between the two vertical plates 1. Each side wall of the two sets of side plates 12 is fixedly connected to a limiting groove 13. Each side wall of the moving rod 3 is fixedly connected to a limiting strip 14 that matches the two limiting grooves 13.

[0028] In this embodiment, the two limiting slide grooves 13 and the two limiting slide bars 14 can limit the movement of the moving rod 3, so that the moving rod 3 can move up and down smoothly, while also preventing the moving rod 3 from rotating with the screw 5.

[0029] As a technical optimization of this utility model, a bearing plate 15 is fixedly connected to the upper end face of the moving rod 3, and anti-slip particles are provided on the upper end face of the bearing plate 15.

[0030] In this embodiment: the bearing plate 15 can abut against the support point of the billet machine, and the anti-slip particles increase the friction between the bearing plate 15 and the support point of the billet machine, so as to stably lift the billet machine.

[0031] As a technical optimization of this utility model, a second rotating shaft 16 is rotatably connected to the upper end face of the upper mounting plate 2, and the lower end of the second rotating shaft 16 extends to the lower part of the upper mounting plate 2 and is fixedly connected to a second bevel gear 17 that meshes with the first bevel gear 11.

[0032] In this embodiment: the second rotating shaft 16 rotates, the second rotating shaft 16 drives the second bevel gear 17 to rotate, and the second bevel gear 17 cooperates with the first bevel gear 11 to drive the worm gear 10 to rotate.

[0033] As a technical optimization of this utility model, the lower ends of the opposite side walls of the two vertical plates 1 are rotatably connected to two left and right distributed track wheels 18.

[0034] In this embodiment, multiple track wheels 18 facilitate the movement of the lifting device.

[0035] As a technical optimization of this utility model, a torsion block 19 is fixedly connected to the upper end of the second rotating shaft 16.

[0036] In this embodiment, the torsion block 19 facilitates the rotation of the second rotating shaft 16.

[0037] The working principle and usage process of this utility model are as follows: In use, the lifting device is manually pushed to the maintenance position inside the billet mill frame using multiple track wheels 18 and tracks, so that the bearing plate 15 is aligned with the support point. Then, the second rotating shaft 16 is driven to rotate by the torsion block 19. The second rotating shaft 16 drives the second bevel gear 17 to rotate. The second bevel gear 17, in conjunction with the first bevel gear 11, drives the worm gear 10 to rotate. The worm gear 10, in conjunction with the worm wheel 9, drives the first rotating shaft 7 to rotate. The first rotating shaft 7 drives the second gear 8 to rotate. The second gear 8, in conjunction with the first gear 6, drives the screw 5 to rotate. The screw 5, in conjunction with the threaded groove 4, drives the moving rod 3 to move upward. The moving rod 3 drives the bearing plate 15 to move upward, so that the bearing plate 15 abuts against the support point. Then, the moving rod 3 and the bearing plate 15 continue to move, thereby lifting the anti-jamming cylinder.

[0038] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., 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.

[0039] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A lifting device for maintenance, comprising two vertical plates (1) distributed front and rear, characterized in that: A lifting mechanism is provided between the two vertical plates (1); The lifting mechanism includes two mounting plates (2) fixedly connected between two vertical plates (1) and distributed vertically. A moving rod (3) is provided above the lower mounting plate (2). A threaded groove (4) is provided on the lower end face of the moving rod (3). A screw (5) is rotatably connected to the upper end face of the lower mounting plate (2). The upper end of the screw (5) extends into the interior of the threaded groove (4) and is threadedly connected to the threaded groove (4). A first gear (6) is fixedly connected to the outer wall of the screw (5). A first rotating shaft (7) is rotatably connected between the two mounting plates (2). A second gear (8) that meshes with the first gear (6) is fixedly connected to the outer wall of the first rotating shaft (7).

2. The maintenance lifting device according to claim 1, characterized in that: The outer wall of the first rotating shaft (7) is fixedly connected to a worm gear (9) located above the second gear (8), and a worm (10) meshing with the worm gear (9) is rotatably connected between the two vertical plates (1). The outer wall of the worm (10) is fixedly connected to a first bevel gear (11) located behind the first rotating shaft (7).

3. The maintenance lifting device according to claim 1, characterized in that: Two sets of side plates (12) are fixedly connected between the two vertical plates (1). Each side wall of the two sets of side plates (12) is fixedly connected to a limiting groove (13). Each side wall of the moving rod (3) is fixedly connected to a limiting strip (14) that matches the two limiting grooves (13).

4. The maintenance lifting device according to claim 1, characterized in that: The upper end face of the moving rod (3) is fixedly connected to a bearing plate (15), and the upper end face of the bearing plate (15) is provided with anti-slip particles.

5. A lifting device for maintenance according to claim 2, characterized in that: A second rotating shaft (16) is rotatably connected to the upper end face of the mounting plate (2) above. The lower end of the second rotating shaft (16) extends to the lower part of the mounting plate (2) above and is fixedly connected to a second bevel gear (17) that meshes with the first bevel gear (11).

6. A lifting device for maintenance according to claim 1, characterized in that: The lower ends of the opposite side walls of the two vertical plates (1) are rotatably connected to two left and right distributed track wheels (18).

7. A lifting device for maintenance according to claim 5, characterized in that: A torsion block (19) is fixedly connected to the upper end of the second rotating shaft (16).

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