Auxiliary lifting device for steel structure cross beam

Abstract

The utility model relates to a steel structure cross beam auxiliary lifting device which comprises a movable chassis, an adjusting mechanism I and a plurality of lifting hooks are arranged on the upper surface of the movable chassis, side frames I are arranged on the two sides of the adjusting mechanism I, side frames II are hinged to one sides of the side frames I, and the sides, away from the hinged sides, of the side frames I and the side frames II are detachably connected. A second adjusting mechanism is arranged at the closed end of the first side frame, first wheel frames are arranged on the two sides of the second adjusting mechanism, the second adjusting mechanism can adjust the distance between the two first wheel frames, a telescopic mechanism is arranged at the closed end of the second side frame and connected with a third adjusting mechanism located in the second side frame, and second wheel frames are arranged on the two sides of the third adjusting mechanism. The third adjusting mechanism can adjust the distance between the two second wheel carriers, the first wheel carrier and the second wheel carriers are each provided with a stepped circular-truncated-cone-shaped electric wheel, and the connecting line of the inner contours of the projections of the four electric wheels is of a square structure. According to the utility model, the hoisting load of the crane can be relieved, and the two ends of the cross beam can be aligned with the two ends of the two steel structure columns after the cross beam reaches the hoisting height.

Description

Technical Field

[0001] This utility model belongs to the technical field of lifting devices, and specifically relates to an auxiliary lifting device for a steel structure beam. Background Technology

[0002] Steel structural beams and columns are the main load-bearing components supporting steel structural buildings. A steel structural column is a vertical, straight steel column fixed to the ground, while a steel structural beam is a horizontal beam welded to two columns.

[0003] Currently, there are two common methods for constructing steel structure beams and columns. The first method involves welding the tops of two steel columns to both ends of a horizontal beam, creating an approximate U-shape. Then, a hydraulic crane is used to lift the welded steel beam and column, and the lower ends of the steel columns are fixed to the ground. The second method involves first vertically fixing two steel columns to the ground, then using a crane to lift the steel beam. The ends of the steel beam are then adjusted to align with the tops of the two steel columns, and finally, the ends of the steel beam are welded to the tops of the steel columns.

[0004] However, both methods have some problems in the existing technology. The first method involves welding two steel columns and a steel beam together before lifting them upright, which results in a large lifting weight, a heavy load on the crane, and a risk of tipping over. The second method requires aligning the ends of the beam with the tops of the two steel columns before welding. Since the crane uses steel cables for lifting, significant swaying occurs during the process, making it difficult to align the ends of the beam with the tops of the steel columns for welding. Utility Model Content

[0005] This utility model provides an auxiliary lifting device for steel structure beams, which can alleviate the lifting load of the crane and ensure that the two ends of the beam are aligned with the two ends of the two steel structure columns after the beam reaches the lifting height.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A steel structure beam auxiliary lifting device includes a movable chassis. The upper surface of the movable chassis is provided with an adjustment mechanism and multiple hooks. The adjustment mechanism has side frames on both sides, allowing adjustment of the distance between the two side frames. A second side frame is hinged to one side of the first side frame. The side frames are detachably connected away from the hinge. The opposite sides of the side frames are open, while the sides away from each other are closed. An adjustment mechanism is provided at the closed end of the first side frame. Wheel frames are provided on both sides of the second adjustment mechanism, allowing adjustment of the distance between the two wheel frames. A telescopic mechanism is provided at the closed end of the second side frame, connecting to an adjustment mechanism three located within the second side frame. The telescopic mechanism adjusts the distance between the second and third adjustment mechanisms. Wheel frames are provided on both sides of the third adjustment mechanism, allowing adjustment of the distance between the two second wheel frames. Each wheel frame has a stepped frustum-shaped electric wheel, and the inner contour of the four projected electric wheels forms a square structure.

[0008] Furthermore, the mobile chassis includes a base, the lower surface of which is provided with a plurality of rollers, and the adjustment mechanism is provided on the upper surface of the base.

[0009] Furthermore, the adjustment mechanism includes two side seats 1 respectively disposed on both sides of the upper surface of the base. A bidirectional screw 1 and a slide rod 1 are disposed between the two side seats. The bidirectional screw 1 is connected to a motor 1 disposed on the side seat 1. Side seats 2 are sleeved on both sides of the bidirectional screw 1 and the slide rod 1. The side seats 2 are connected to the side frame 1.

[0010] Furthermore, the second adjustment mechanism includes a bidirectional screw rod rotatably disposed within the closed end of the first side frame and a sliding groove disposed on the end wall of the first side frame. The bidirectional screw rod rotatably is connected to a motor rotatably disposed within the first side frame. Two wheel frames are respectively threaded onto both sides of the bidirectional screw rod rotatably. The side of the wheel frame rotatably disposed away from the electric wheel is disposed within the sliding groove.

[0011] Furthermore, the end of the wheel frame two away from the electric wheel is provided with an L-shaped limiting block, and the two limiting blocks located on the same side of the side frame are symmetrically arranged, with the limiting blocks located on the outside of the side frame one.

[0012] Furthermore, the telescopic mechanism includes a slide that slides through the two end walls of the side frame. The slide has a U-shaped structure, with the closed end of the slide facing away from the two sides of the side frame. A telescopic rod is connected between the closed end of the slide and the closed end of the side frame. The adjustment mechanism is located on the open end of the slide.

[0013] Furthermore, the adjustment mechanism three includes a bidirectional screw three and a slide rod two located at the open end of the slide. The bidirectional screw three is connected to a motor three located on the slide. The wheel frame two is sleeved on the bidirectional screw three and the slide rod two.

[0014] Furthermore, the electric wheel includes a hub motor, two hub motors are located in a first wheel frame, two hub motors are located in a second wheel frame, and the hub motor is provided with a stepped frustum-shaped outer wheel.

[0015] Furthermore, one side of the first and second side frames are connected by hinges, and the other side is connected by bolts.

[0016] Furthermore, the number of hooks is two, and they are located on both sides of the middle of the two side frames respectively.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. Using side frames one and two on both sides, clamp the beam onto the erected steel structure column. Through the cooperation of the telescopic mechanism, adjustment mechanism two and adjustment mechanism three, clamp the four electric wheels on the same side onto the outer surface of the steel structure column. Place the steel structure beam on the upper surface of the closed end of the two side frames one. The crane lifts the beam by pulling the hook. During the lifting process, the eight electric wheels are driven synchronously to assist in moving the beam upwards on both sides. With the assistance of the electric wheel drive, the lifting load of the crane can be reduced, and after the beam reaches the lifting height, it can be ensured that the two ends of the beam are aligned with the two ends of the two steel structure columns.

[0019] 2. Based on the fact that adjustment mechanism one can adjust the distance between the two side frames, adjustment mechanism two can adjust the distance between the two wheel frames, and telescopic mechanism can adjust the distance between adjustment mechanism two and adjustment mechanism three, it can be used as an auxiliary support for steel structure beams and columns of different distances and sizes. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 for Figure 1 A top-view structural diagram;

[0022] Figure 3 for Figure 2 Enlarged view of point B in the image;

[0023] Figure 4 A schematic diagram of the lateral structure of the positioning beam for the limit block;

[0024] In the diagram: 1. Base; 2. Side seat one; 3. Side frame one; 4. Hinge; 5. Side frame two; 6. Slide; 7. Crossbeam; 8. Vertical beam; 9. Limiting block; 10. Wheel frame one; 11. Hook; 12. Motor one; 13. Double-direction screw one; 14. Slide rod one; 15. Side seat two; 16. Roller; 17. Double-direction screw three; 18. Slide rod two; 19. Wheel frame two; 20. Telescopic rod; 21. Motor three; 22. Outer wheel; 23. Bolt; 24. Hub motor; 25. Motor two; 26. Double-direction screw two; 27. Slide groove. Detailed Implementation

[0025] To better understand the technical content of this utility model, specific embodiments are provided below, and the utility model will be further described in conjunction with the accompanying drawings.

[0026] See Figures 1 to 4 This utility model provides an auxiliary lifting device for a steel structure beam, including a movable chassis. The upper surface of the movable chassis is provided with an adjustment mechanism and multiple hooks 11. After steel cables are tied to the hooks 11, a crane can lift the base 1 via the hooks 11. Side frames 3 are provided on both sides of the adjustment mechanism. The horizontal distance between the two side frames 3 can be adjusted using the adjustment mechanism. A second side frame 5 is hinged to the front side of the first side frame 3. The sides of the first side frame 3 and the second side frame 5 are detachably connected away from the hinge, allowing the second side frame 5 to be opened or closed and locked together on the first side frame 3. The opposite sides of the first side frame 3 and the second side frame 5 are open structures. The far end is a closed structure. The closed end of the side frame 3 is equipped with an adjustment mechanism 2. Both sides of the adjustment mechanism 2 are equipped with wheel frames 10. The adjustment mechanism 2 can adjust the distance between the two wheel frames 10. The closed end of the side frame 2 5 is equipped with a telescopic mechanism. The telescopic mechanism is connected to the adjustment mechanism 3 located inside the side frame 2 5. The telescopic mechanism can adjust the distance between the adjustment mechanism 2 and the adjustment mechanism 3. Both sides of the adjustment mechanism 3 are equipped with wheel frames 2 19. The adjustment mechanism 3 can adjust the distance between the two wheel frames 2 19. Both wheel frames 10 and wheel frames 2 19 are equipped with stepped frustum-shaped electric wheels. The inner contour line of the projection of the four electric wheels forms a square structure.

[0027] When lifting is required, the movable base 1 is moved between two erected steel columns. The distance between the two side frames 3 is adjusted by the adjustment mechanism 1, so that the two side frames 3 fit inside the two steel columns. After flipping the side frames 2 5 on both sides and locking them onto the side frames 3, the distance between the four electric wheels on the same side is adjusted by the telescopic mechanism, the adjustment mechanism 2, and the adjustment mechanism 3 respectively. Then, the four electric wheels on the same side clamp the outer surface of the steel column. The steel structure beam 7 is placed on the upper surface of the closed end of the two side frames 3. After connecting the crane's steel rope to the hook 11, the base 1 is lifted by the crane. During the lifting process, the eight electric wheels are driven synchronously to assist in moving the beam 7 synchronously upward on both sides. With the assistance of the electric wheel drive, the lifting load of the crane can be reduced, and after the beam 7 reaches the lifting height, it can be ensured that the two ends of the beam 7 are aligned with the two ends of the two steel columns. It should be noted that the two electric wheels on the side of side frame 2 5 and the two electric wheels on the side of side frame 3 rotate in opposite directions.

[0028] In addition, since the first adjustment mechanism can adjust the distance between the two side frames 13, the second adjustment mechanism can adjust the distance between the two wheel frames 10, the telescopic mechanism can adjust the distance between the second and third adjustment mechanisms, and the third adjustment mechanism can adjust the distance between the two wheel frames 19, it can be used to provide auxiliary support for steel structure beams and columns of different distances and sizes.

[0029] Preferably, the mobile chassis includes a base 1, with a plurality of rollers 16 on the lower surface of the base 1, and an adjustment mechanism is provided on the upper surface of the base 1, using the rollers 16 to facilitate moving the base 1 on the ground.

[0030] Preferably, the adjustment mechanism includes two side seats 2 fixedly mounted on both sides of the upper surface of the base 1. A bidirectional screw 13 and a slide rod 14 are provided between the two side seats 2. The two ends of the bidirectional screw 13 are connected to the two side seats 2. One end of the bidirectional screw 13 is connected to a motor 12 fixedly mounted on the side seat 2. The two ends of the slide rod 14 are fixedly connected to the two side seats 2. Side seats 2 15 are sleeved on both sides of the bidirectional screw 13 and the slide rod 14. The side seats 2 15 are threadedly connected to the bidirectional screw 13 and slidably connected to the slide rod 14. The side seats 2 15 are fixedly connected to the side frame 3.

[0031] The motor 12 drives the bidirectional screw 13 to rotate between the two side seats 2. Under the action of the slide rod 14, the bidirectional screw 13 can drive the two side frames 3 to move closer or further apart through the two side seats 2 15, thereby adjusting the distance between them.

[0032] Preferably, the adjustment mechanism includes a bidirectional screw 26 rotatably disposed in the closed end of the side frame 3 and a slide groove 27 disposed on the end wall of the side frame 3. The bidirectional screw 26 is connected to a motor 25 fixedly disposed in the side frame 3. Two wheel frames 10 are respectively threaded on both sides of the bidirectional screw 26, and the side of the wheel frame 10 away from the electric wheel is disposed in the slide groove 27.

[0033] Motor 25 drives bidirectional screw 26 to rotate within side frame 3. Under the limiting effect of slide groove 27, bidirectional screw 26 drives two wheel frames 10 to move relatively away or closer, thereby adjusting the distance between the two corresponding electric wheels.

[0034] Preferably, an L-shaped limiting block 9 is fixedly provided at the end of the wheel frame 10 away from the electric wheel, and two limiting blocks 9 located on the same side frame 3 are symmetrically arranged, with the limiting blocks 9 located on the outside of the side frame 3;

[0035] The two ends of the steel structure beam are placed between two opposing limiting blocks 9 on both sides. The stepped surface can raise the steel structure beam, which facilitates welding and prevents the steel structure beam from falling off the side frame 3. In addition, the distance between the limiting blocks 9 on the same side moves with the side frame 10. Since the vertical surface of the upper side of the limiting block 9 is set to be flush with the end face of the electric wheel near the other electric wheel, the size of the steel structure beam to be clamped can be adjusted synchronously according to the size of the steel structure column, which is convenient for positioning and adjusting the steel structure beam.

[0036] Preferably, the telescopic mechanism includes a slide 6 that slides through the end wall of the second side frame 5. The slide 6 has a U-shaped structure, and the closed end of the slide 6 faces away from the second side frame 5. A telescopic rod 20 is connected between the closed end of the slide 6 and the closed end of the second side frame 5. The telescopic rod 20 is an electric push rod or a hydraulic rod. An adjustment mechanism 3 is provided on the open end of the slide 6.

[0037] When the telescopic rod 20 extends, it can drive the slide 6 to slide outward on the side frame 2 5, thereby driving the adjustment mechanism 3 to move away from the adjustment mechanism 2. When the telescopic rod 20 shortens, it drives the adjustment mechanism 3 to move closer to the adjustment mechanism 2.

[0038] Preferably, the adjustment mechanism includes a bidirectional screw 26 and a slide rod 18 located at the open end of the slide 6. The two ends of the bidirectional screw 17 are respectively connected to the two sides of the slide 6. The screw 2 is connected to a motor 21 fixedly mounted on the slide 6. The wheel frame 19 is sleeved on the bidirectional screw 17 and the slide rod 18. The wheel frame 19 is threadedly connected to the bidirectional screw 17 and slidably connected to the slide rod 18.

[0039] Motor 321 drives bidirectional screw 317 to rotate on slide 6. Under the limiting action of slide rod 218, bidirectional screw 317 drives two wheel frames 219 to move relatively away or closer, thereby adjusting the distance between the two corresponding electric wheels.

[0040] Preferably, the electric wheel includes a hub motor 24, two hub motors 24 are located in wheel frame one 10, two hub motors 24 are located in wheel frame two 19, and a stepped frustum-shaped outer wheel 22 is provided on the hub motor 24.

[0041] Preferably, one side of the first side frame 3 and the second side frame 5 are connected by a hinge 4, and the other side is connected by a bolt 23, which facilitates disassembly and assembly.

[0042] Preferably, there are two hooks 11, which are located on both sides of the middle of the two side frames 3, which is beneficial to the force balance when lifting the base 1.

[0043] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A steel structure beam auxiliary lifting device, characterized in that: The utility model provides mobile chassis, the upper surface of mobile chassis is equipped with adjusting mechanism one and a plurality of lifting hooks, the both sides of adjusting mechanism one are equipped with side frame one, adjusting mechanism one can adjust the distance between two side frame one, one side of side frame one is hinged with side frame two, the side far away from hinge of side frame one and side frame two is detachable connection, the opposite side of side frame one and side frame two is open structure, and the side far away from each other is closed structure, the closed end of side frame one is equipped with adjusting mechanism two, the both sides of adjusting mechanism two are equipped with wheel frame one, adjusting mechanism two can adjust the distance between two wheel frame one, the closed end of side frame two is equipped with telescopic mechanism, telescopic mechanism is connected with adjusting mechanism three in side frame two, telescopic mechanism can adjust the distance between adjusting mechanism two and adjusting mechanism three, the both sides of adjusting mechanism three are equipped with wheel frame two, adjusting mechanism three can adjust the distance between two wheel frame two, and the electric wheel of ladder round table shape is equipped on wheel frame one and wheel frame two, and the projection inner contour line of four electric wheels is square structure.

2. A steel structure beam auxiliary lifting device according to claim 1, characterized in that: The mobile chassis comprises a base, and the lower surface of the base is provided with a plurality of rollers.

3. A steel structure beam auxiliary lifting device according to claim 2, characterized in that: The adjusting mechanism one comprises two side seats one respectively arranged on the upper surfaces of the two sides of the base, a bidirectional screw one and a sliding rod one are arranged between the two side seats one, the bidirectional screw one is connected with a motor one arranged on the side seat one, the two sides of the bidirectional screw one and the sliding rod one are jointly sleeved with side seats two, and the side seats two are connected to the side frames one.

4. A steel structure beam auxiliary lifting device according to any one of claims 1 to 3, characterized in that: The adjusting mechanism two comprises a bidirectional screw two rotatably arranged in the closed end of the side frame one and a sliding groove arranged on the end wall of the side frame one, the bidirectional screw two is connected with a motor two arranged on the side frame one, the two wheel frames one are threadedly sleeved on the two sides of the bidirectional screw two, and the wheel frame two away from the electric wheel is arranged in the sliding groove.

5. A steel structure beam auxiliary lifting device according to claim 4, characterized in that: The wheel frame two away from the electric wheel is provided with an L-shaped limiting block, and the two limiting blocks located on the same side of the side frame one are symmetrically arranged.

6. A steel structure beam auxiliary lifting device according to any one of claims 1, 2, 3 and 5, characterized in that: The telescopic mechanism comprises a sliding carriage slidingly arranged on the end wall of the side frame two, the sliding carriage is in a U-shaped structure, the closed end of the sliding carriage faces away from the side frame two, a telescopic rod is arranged between the closed end of the sliding carriage and the closed end of the side frame two, and the adjusting mechanism three is arranged on the open end of the sliding carriage.

7. A steel structure beam auxiliary lifting device according to claim 6, characterized in that: The adjusting mechanism three comprises a bidirectional screw three and a sliding rod two arranged on the open end of the sliding carriage, the bidirectional screw three is connected with a motor three arranged on the sliding carriage, and the wheel frame two is sleeved on the bidirectional screw three and the sliding rod two.

8. A steel structure beam auxiliary lifting device according to any one of claims 1, 2, 3 and 5, characterized in that: The electric wheel comprises a hub motor, two hub motors are arranged in the wheel frame one, two hub motors are arranged in the wheel frame two, and a stepped circular table-shaped outer wheel is arranged on the hub motor.

9. A steel structure beam auxiliary lifting device according to any one of claims 1, 2, 3 and 5, characterized in that: One side of the side frame one and the side frame two is connected through a hinge, and the other side is connected through a bolt.

10. A steel structure beam auxiliary lifting device according to any one of claims 1, 2, 3 and 5, characterized in that: The number of the lifting hooks is two, and the lifting hooks are arranged on the two sides of the middle of the two side frames one.

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