Size-adjustable assembly type box-shaped steel beam hoist

Abstract

This utility model discloses an adjustable-size prefabricated box-type steel beam lifting device, including a support base. A first motor is connected to the inner wall of the support base. A drive shaft is connected to the top of the output shaft of the first motor. A drive conical wheel is connected to the top of the drive shaft. A driven conical wheel is connected to the surface of the drive conical wheel. A first lead screw is connected to one side of the driven conical wheel. A first slider is connected to the outer wall of the first lead screw. A connecting rod is connected to the bottom of the first slider. A support frame is connected to the bottom of the connecting rod. A lifting lug is connected to the top of the support base. This device facilitates the adjustment of the distance between the two support frames, thereby enabling the lifting of box-type steel beams of different widths via the support frames. It also facilitates the lifting of box-type steel beams of different heights, effectively improving the applicability of the lifting operation.

Description

Technical Field

[0001] This utility model belongs to the field of prefabricated box-type steel beam technology, specifically relating to an adjustable-size prefabricated box-type steel beam lifting device. Background Technology

[0002] Box girders have the same cross-sectional shape as a typical box, hence the name. They are generally composed of a cover plate, web plate, bottom plate, and diaphragms, and are made of either steel or prestressed reinforced concrete. They are mainly used in large-span or load-bearing structures. With continuous technological development, there are increasingly more types of box girders, including prefabricated box girders. The construction of prefabricated box girders requires the use of lifting equipment for hoisting.

[0003] Existing lifting tools are inconvenient to adjust in size during use, making them unsuitable for prefabricated box-type steel beams of different sizes. This reduces their applicability and causes inconvenience to users. This phenomenon has become a problem that urgently needs to be solved by those in the field. Utility Model Content

[0004] The purpose of this utility model is to propose an adjustable-size prefabricated box-type steel beam lifting device to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an adjustable-size assembled box-type steel beam lifting device, including a support base, a first motor connected to the inner wall of the support base, a drive shaft connected to the top of the output shaft of the first motor, a drive conical wheel connected to the top of the drive shaft, a driven conical wheel connected to the surface of the drive conical wheel, a first lead screw connected to one side of the driven conical wheel, a first slider connected to the outer wall of the first lead screw, a connecting rod connected to the bottom of the first slider, a support frame connected to the bottom of the connecting rod, and a lifting lug connected to the top of the support base.

[0006] By adopting the above technical solution, the distance between the two support frames can be easily adjusted, which is beneficial for hoisting box-shaped steel beams of different widths through the support frames, effectively improving the scope of application. At the same time, the electric control effectively improves the convenience of operation.

[0007] Preferably, a second motor is connected to the top of the support frame, a second lead screw is connected to the bottom of the output shaft of the second motor, the second lead screw passes through the support frame through a bearing and is connected to a fixed block on the outer wall of the support frame through the bearing, a second slider is connected to the outer wall of the second lead screw, a protrusion is connected to the outer wall of the second slider, and a movable base is connected to one end of the protrusion.

[0008] By adopting the above technical solution, it is easier to lift and adjust the movable base frame. In this way, the movable base frame and the support frame work together to facilitate the hoisting of box-shaped steel beams of different heights, further improving the applicability.

[0009] Preferably, the driven cone wheels are symmetrically distributed on both sides of the driving cone wheel, and the threads of the two first lead screws connected by the two driven cone wheels are in the same direction.

[0010] By adopting the above technical solution, it is convenient to drive the two driven cone wheels to rotate in opposite directions.

[0011] Preferably, the bottom of the lifting lug is provided with a groove, and the inner walls on both sides of the groove are connected to bearings, and the first lead screw is connected to the lifting lug through the bearings.

[0012] By adopting the above technical solution, it is easier to support the first lead screw.

[0013] Preferably, the outer wall of the support frame on the side that is far apart from each other is provided with a through groove, and the protrusion is slidably connected to the support frame through the through groove.

[0014] By adopting the above technical solution, it is easier to guide the bumps.

[0015] Preferably, both the support base and the support frame have a storage groove inside, the inner wall of the storage groove is connected to a fixing block, the inner wall of the fixing block has a receiving groove, and a rolling element is movably connected inside the receiving groove.

[0016] By adopting the above technical solution, the friction between the support frame and the movable base frame during sliding is reduced, thus avoiding damage after long-term use and extending the service life. Furthermore, it avoids noise caused by friction during adjustment, thereby improving the stability and environmental friendliness during use.

[0017] Preferably, the support frame is slidably connected to the support base via a storage groove, and the movable base frame is slidably connected to the support frame via a storage groove, with the outer walls of the support frame and the movable base frame located inside the storage groove in contact with the surface of the rolling element.

[0018] By adopting the above technical solution, it is easier to guide the support frame and the movable base frame.

[0019] Preferably, the diameter of the opening of the receiving groove is smaller than the diameter of the rolling element.

[0020] By adopting the above technical solution, it is convenient to limit the movement of the rolling element.

[0021] Compared with the prior art, the beneficial effects achieved by this utility model are: This utility model,

[0022] (1) By setting up a support base, a first motor, a drive shaft, a drive cone wheel, a driven cone wheel, a first lead screw, a first slider, a connecting rod, a support frame and a lifting lug, it is convenient to adjust the distance between the two support frames, which is conducive to hoisting box-shaped steel beams of different widths through the support frame, effectively improving the scope of application. At the same time, through electric control, the convenience of operation is effectively improved.

[0023] (2) By providing a second motor, a second lead screw, a second slider, a protrusion, a movable base frame and a through groove, it is convenient to drive the movable base frame to lift and adjust. Thus, with the cooperation of the movable base frame and the support frame, it is convenient to carry out hoisting work on box-shaped steel beams of different heights, further improving the scope of application.

[0024] (3) By setting fixed blocks, receiving grooves and rolling elements, it is beneficial to reduce the friction when the support frame and movable base slide, thereby avoiding damage after long-term use, thus extending the service life, and avoiding noise caused by friction during adjustment, thereby improving the stability and environmental protection during use. Attached Figure Description

[0025] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a side sectional view of the present invention;

[0028] Figure 3 This is the utility model Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 This is a bottom view of the present invention.

[0030] In the diagram: 1. Support base; 2. First motor; 3. Drive shaft; 4. Drive cone wheel; 5. Driven cone wheel; 6. First lead screw; 7. First slider; 8. Connecting rod; 9. Support frame; 10. Lifting lug; 11. Second motor; 12. Second lead screw; 13. Second slider; 14. Protrusion; 15. Movable base frame; 16. Through groove; 17. Fixed block; 18. Receiving groove; 19. Rolling element. Detailed Implementation

[0031] The following detailed, non-limiting description of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0032] Please see Figure 1-4 This utility model provides a technical solution: an adjustable-size assembled box-type steel beam lifting device, including a support base 1, a first motor 2 connected to the inner wall of the support base 1, a drive shaft 3 connected to the top of the output shaft of the first motor 2, a drive cone wheel 4 connected to the top of the drive shaft 3, a driven cone wheel 5 connected to the surface of the drive cone wheel 4, a first lead screw 6 connected to one side of the driven cone wheel 5, a first slider 7 connected to the outer wall of the first lead screw 6, a connecting rod 8 connected to the bottom of the first slider 7, a support frame 9 connected to the bottom of the connecting rod 8, and a lifting lug 10 connected to the top of the support base 1. This facilitates the rotation of the first lead screw 6 via the driven cone wheel 5, causing the first lead screw 6 to slide via the thread, and the first slider 7 to slide via the connecting rod 8, thereby facilitating the lifting of box-type steel beams of different widths via the support frame 9, effectively improving the applicability.

[0033] In this embodiment, the driven cone wheels 5 are symmetrically distributed on both sides of the driving cone wheel 4. The two first lead screws 6 connected to the two driven cone wheels 5 have the same thread direction, which facilitates the driving cone wheel 4 to drive the two driven cone wheels 5 to rotate in opposite directions. This causes the driven cone wheels 5 to drive the two first lead screws 6 to rotate in opposite directions, thereby causing the first lead screws 6 with the same thread to drive the two first sliders 7 to slide in opposite directions or in opposite directions. This is beneficial because after the size of the two support frames 9 is adjusted, the longitudinal center line of their spacing remains unchanged with the longitudinal center line of the lifting lug 10, which is beneficial for more stable hoisting when using the lifting lug 10.

[0034] Furthermore, the bottom of the lifting lug 10 is provided with a groove, and bearings are connected to the inner walls on both sides of the groove. The first lead screw 6 is connected to the lifting lug 10 through the bearings, which facilitates the support of the first lead screw 6 by the lifting lug 10 and improves the stability of the first lead screw 6 when it rotates.

[0035] Based on the above embodiments, this utility model provides another technical solution, such as... Figures 1-4As shown, a second motor 11 is connected to the top of the support frame 9, and a second lead screw 12 is connected to the bottom of the output shaft of the second motor 11. The second lead screw 12 passes through the support frame 9 through a bearing and is connected to a fixed block on the outer wall of the support frame 9 through the bearing. A second slider 13 is connected to the outer wall of the second lead screw 12, and a protrusion 14 is connected to the outer wall of the second slider 13. One end of the protrusion 14 is connected to a movable base frame 15, which facilitates the second slider 13 to slide through the thread when the second motor 11 drives the second lead screw 12 to rotate. This allows the second lead screw 12 to slide through the thread, and the second slider 13 to slide through the protrusion 14 and the movable base frame 15, enabling the hoisting of box-shaped steel beams of different heights, further improving the applicability.

[0036] In this embodiment, a through groove 16 is provided on the outer wall of the side of the support frame 9 that is far apart from each other, and the protrusion 14 is slidably connected to the support frame 9 through the through groove 16, which facilitates the protrusion 14 to effectively drive the movable base frame 15 located inside the support frame 9 to slide. At the same time, since the movable base frame 15 is located inside the support frame 9, the stability of the connection between the two is improved.

[0037] Based on the above embodiments, this utility model provides another technical solution, such as... Figures 2-4 As shown, both the support base 1 and the support frame 9 have storage grooves inside. The inner wall of the storage groove is connected to a fixing block 17. The inner wall of the fixing block 17 has a receiving groove 18. The receiving groove 18 is movably connected to a rolling element 19, which facilitates the reduction of friction when the support frame 9 and the movable base frame 15 slide through the rolling element 19, thereby reducing wear and effectively extending the service life.

[0038] In this embodiment, the support frame 9 is slidably connected to the support base 1 through the storage groove, and the movable base 15 is slidably connected to the support frame 9 through the storage groove. The outer walls of the support frame 9 and the movable base 15 inside the storage groove are in contact with the surface of the rolling element 19, which facilitates the limiting and guiding work of the support frame 9 and the movable base 15, effectively preventing the support frame 9 and the movable base 15 from rotating, and ensuring that the lead screw can drive the two to perform sliding adjustment work through the slider.

[0039] To prevent the rolling element 19 from falling off during rolling, this embodiment further explains that the diameter of the opening of the receiving groove 18 is smaller than the diameter of the rolling element 19, which is beneficial for limiting the rolling element 19.

[0040] In use, the first motor 2 is started first, which drives the active cone wheel 4 to rotate through the active shaft 3. The active cone wheel 4 drives the two first lead screws 6 to rotate in opposite directions through the two driven cone wheels 5. The two first lead screws 6 drive the first sliders 7 to slide in opposite directions. Then, the two first sliders 7 drive the two support frames 9 to adjust the spacing through the connecting rod 8, which facilitates the hoisting of box-shaped steel beams of different widths and improves the applicability.

[0041] After the width adjustment is completed, the second motor 11 is started, which drives the second lead screw 12 to rotate. The second lead screw 12 drives the second slider 13 to slide, and the second slider 13 drives the movable base frame 15 to slide through the protrusion 14. This facilitates the adjustment of the height of the movable base frame 15, and makes it easier to hoist box-shaped steel beams of different heights through the movable base frame 15 and the support frame 9, further improving the applicability.

[0042] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", 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 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.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An adjustable-size prefabricated box-type steel beam lifting device, comprising a support base (1), characterized in that: The inner wall of the support base (1) is connected to a first motor (2), the top of the output shaft of the first motor (2) is connected to a drive shaft (3), the top of the drive shaft (3) is connected to a drive cone wheel (4), the surface of the drive cone wheel (4) is connected to a driven cone wheel (5), one side of the driven cone wheel (5) is connected to a first lead screw (6), the outer wall of the first lead screw (6) is connected to a first slider (7), the bottom of the first slider (7) is connected to a connecting rod (8), the bottom of the connecting rod (8) is connected to a support frame (9), and the top of the support base (1) is connected to a lifting lug (10). The top of the support frame (9) is connected to a second motor (11), the bottom of the output shaft of the second motor (11) is connected to a second lead screw (12), the second lead screw (12) passes through the support frame (9) through a bearing and is connected to a fixed block on the outer wall of the support frame (9) through the bearing, the outer wall of the second lead screw (12) is connected to a second slider (13), the outer wall of the second slider (13) is connected to a protrusion (14), and one end of the protrusion (14) is connected to a movable base frame (15).

2. The adjustable-size prefabricated box-type steel beam lifting device according to claim 1, characterized in that: The driven cone wheel (5) is symmetrically distributed on both sides of the driving cone wheel (4), and the two first lead screws (6) connected by the two driven cone wheels (5) have the same thread direction.

3. The adjustable-size prefabricated box-type steel beam lifting device according to claim 1, characterized in that: The bottom of the lifting lug (10) is provided with a groove, and the inner walls of the two sides of the lifting lug (10) are connected to bearings, and the first lead screw (6) is connected to the lifting lug (10) through the bearings.

4. The adjustable-size prefabricated box-type steel beam lifting device according to claim 1, characterized in that: The outer wall of the support frame (9) on the side away from each other is provided with a through groove (16), and the protrusion (14) is slidably connected to the support frame (9) through the through groove (16).

5. The adjustable-size prefabricated box-type steel beam lifting device according to claim 1, characterized in that: Both the support base (1) and the support frame (9) have storage slots inside. The inner wall of the storage slot is connected to a fixing block (17). The inner wall of the fixing block (17) has a receiving slot (18). The receiving slot (18) is movably connected to a rolling element (19).

6. The adjustable-size prefabricated box-type steel beam lifting device according to claim 5, characterized in that: The support frame (9) is slidably connected to the support base (1) through the storage groove, and the movable base frame (15) is slidably connected to the support frame (9) through the storage groove. The outer walls of the support frame (9) and the movable base frame (15) inside the storage groove are in contact with the surface of the rolling body (19).

7. The adjustable-size prefabricated box-type steel beam lifting device according to claim 5, characterized in that: The diameter of the opening of the receiving groove (18) is smaller than the diameter of the rolling element (19).

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