Box girder hoisting device

Abstract

The utility model discloses a box girder hoisting device which comprises a supporting assembly, the supporting assembly comprises a supporting column, a movable block and a fixed block, the fixed block is fixed to the position close to the top of the supporting column, the movable block is arranged on the outer side of the supporting column in a sleeved mode, and a hoisting assembly is arranged on one side of the supporting assembly. The hoisting assembly comprises a fixing shell, a motor, a driving gear, a driven gear, a threaded rod and clamping rods, the driving gear is arranged at the output end of the motor, the driven gear is arranged below the driving gear, the threaded rod penetrates through the driven gear, and the clamping rods are arranged on the two sides, close to the fixing shell, of the bottom. According to the clamping device, a transmission structure in which the motor is matched with the gear is arranged, the clamping width of the clamping rod is adjusted based on the two-way screw rod, the clamping height is adjusted by utilizing the clamping block in which the motor is matched with the screw rod to move, and an F-shaped clamping structure is formed by the clamping block and the clamping rod, so that the clamping height and the clamping width can be adjusted according to the size of the box girder.

Description

Technical Field

[0001] The utility model relates to but is not limited to the technical field of bridge construction, and specifically relates to a box beam hoisting device. Background Art

[0002] A lifting device is required during bridge construction to lift the steel box girder. However, the existing lifting device still has certain shortcomings when used. The existing lifting device cannot clamp steel box girders of different sizes when used, thereby reducing the practicality and scope of use of the lifting device when used. At the same time, it is also not convenient to accurately control the rising height of the steel box girder, reducing the applicability of the lifting device.

[0003] After searching, Chinese patent application number CN202222856763.9 is a steel box girder lifting device for bridge construction. The clamping plates are installed by a turning rod, but the turning rod cannot be rotated, and only the clamping width can be adjusted between the clamping plates, but the clamping height cannot be adjusted. There are certain limitations for the use of box girders with different heights. Therefore, a box girder lifting device with better applicability is designed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a box beam hoisting device.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] The utility model discloses a box beam hoisting device, comprising a support assembly, wherein the support assembly comprises a support column, a movable block and a fixed block, wherein the fixed block is fixed near the top of the support column, the movable block is arranged below the fixed block, and the movable block is sleeved on the outer side of the support column;

[0007] A hoisting assembly, the hoisting assembly is arranged on one side of the supporting assembly, the hoisting assembly comprises a fixed shell, a motor, a driving gear, a passive gear, a threaded rod and a clamping rod, the motor is screwed to one side of the motor shell, the driving gear is arranged at the output end of the motor, the passive gear is arranged below the driving gear, the threaded rod passes through the passive gear, and clamping rods are arranged on both sides of the bottom near the fixed shell;

[0008] An adjustment component is arranged between the lifting component and the supporting component, and the adjustment component includes a fixed rod, a telescopic rod and a diagonal rod. The fixed rod is sleeved on the rear end of the telescopic rod, and the front bottom of the telescopic rod is connected to the fixing shell screw, and the diagonal rod is arranged between the fixed rod and the fixed block.

[0009] As a preferred technical solution of the utility model, the output end of the motor is transmission connected to the driving gear, the passive gear is meshed with the driving gear, and both are arranged inside the fixed shell, the threaded rod is screwed to the passive gear, and the threaded rod is a bidirectional threaded rod design.

[0010] As a preferred technical solution of the utility model, the clamping rod is of L-shaped design, a connecting block is provided at the upper end of the clamping rod, the connecting block is threadedly matched with the threaded rod, a guide rod is provided below the passive gear, the guide rod passes through the fixed shell and the connecting block, and is threadedly matched with the fixed shell, and the connecting block is slidably connected to the guide rod.

[0011] As a preferred technical solution of the utility model, a clamping block is provided on the inner side of the clamping rod, a screw rod is provided between the clamping block and the clamping rod, the screw rod passes through the rear end of the clamping block and is threadedly engaged with the clamping block, the motor is provided at the upper end of the screw rod, and the motor is embedded in the interior of the clamping rod.

[0012] As a preferred technical solution of the utility model, the fixed rod is slidably connected to the telescopic rod, a limiting screw is arranged between the fixed rod and the telescopic rod, the limiting screw passes through the fixed rod and the telescopic rod, and a nut adapted to the limiting screw is preset inside the telescopic rod.

[0013] As a preferred technical solution of the utility model, both ends of the inclined tie rod are screwed with connecting plates, the connecting plates are respectively fixedly connected to the fixed rod and the fixed block, and the rear end of the fixed rod is screwed to the movable block.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model sets a transmission structure in which a motor and a gear cooperate, adjusts the clamping width of the clamping rod based on a bidirectional screw, and uses a clamping block that moves in cooperation with the motor and the screw to adjust the clamping height, thereby forming an F-shaped clamping structure with the clamping rod, thereby being able to adjust the clamping height and width according to the size of the box beam, thereby solving the problem that the clamping height cannot be adjusted and there are certain limitations in its use for box beams with different heights.

[0016] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a partial structural diagram of the hoisting assembly;

[0021] Figure 3 is a schematic diagram of the cross-sectional structure of the support assembly;

[0022] In the figure: 100, support assembly; 101, support column; 102, movable block; 103, fixed block; 200, lifting assembly; 201, fixed shell; 202, motor; 203, driving gear; 204, passive gear; 205, threaded rod; 206, clamping rod; 207, connecting block; 208, clamping block; 209, screw rod; 2010, guide rod; 300, adjustment assembly; 301, fixed rod; 302, telescopic rod; 303, limit screw; 304, inclined rod; 305, connecting plate. DETAILED DESCRIPTION

[0023] like Figure 1-3 As shown, the utility model provides a box girder hoisting device, including a support assembly 100, the support assembly 100 includes a support column 101, a movable block 102 and a fixed block 103, the fixed block 103 is fixed near the top of the support column 101, the movable block 102 is arranged below the fixed block 103, and the fixed block 103 is sleeved on the outer side of the support column 101;

[0024] A hoisting assembly 200 is arranged on one side of the supporting assembly 100. The hoisting assembly 200 includes a fixed shell 201, a motor 202, a driving gear 203, a passive gear 204, a threaded rod 205 and a clamping rod 206. The motor 202 is screwed to one side of the motor 202 shell, the driving gear 203 is arranged at the output end of the motor 202, the passive gear 204 is arranged below the driving gear 203, the threaded rod 205 penetrates the passive gear 204, and clamping rods 206 are arranged on both sides of the bottom near the fixed shell 201;

[0025] The adjustment component 300 is arranged between the lifting component 200 and the supporting component 100. The adjustment component 300 includes a fixed rod 301, a telescopic rod 302 and a diagonal rod 304. The fixed rod 301 is sleeved on the rear end of the telescopic rod 302. The front bottom of the telescopic rod 302 is screwed to the fixed shell 201. The diagonal rod 304 is arranged between the fixed rod 301 and the fixed block 103.

[0026] Furthermore, in this embodiment, the output end of the motor 202 is transmission-connected to the driving gear 203, the passive gear 204 is meshed with the driving gear 203, and both are arranged inside the fixed shell 201, the threaded rod 205 is screw-connected to the passive gear 204, the threaded rod 205 is designed as a bidirectional threaded rod 205, the transmission of the driving gear 203 is controlled by the motor 202, the driving gear 203 drives the passive gear 204 to rotate synchronously, thereby realizing the rotation of the threaded rod 205.

[0027] In this embodiment, the clamping rod 206 is of L-shaped design, and a connecting block 207 is provided at the upper end of the clamping rod 206. The connecting block 207 is threadedly matched with the threaded rod 205. A guide rod 2010 is provided below the passive gear 204. The guide rod 2010 passes through the fixed shell 201 and the connecting block 207, and is threadedly matched with the fixed shell 201. The connecting block 207 is slidably connected to the guide rod 2010. The bidirectional thread design based on the threaded rod 205 enables the clamping blocks 208 on both sides to move inward or outward synchronously, thereby realizing the adjustment of the clamping width of the clamping rod 206. The guide rod 2010 plays an auxiliary role, so that the connecting block 207 slides on the outer surface of the guide rod 2010, thereby stabilizing the movement of the connecting block 207.

[0028] In this embodiment, a clamping block 208 is provided on the inner side of the clamping rod 206, and a screw rod 209 is provided between the clamping block 208 and the clamping rod 206. The screw rod 209 passes through the rear end of the clamping block 208 and is threadedly engaged with the clamping block 208. A motor 202 is provided on the upper end of the screw rod 209. The motor 202 is embedded in the interior of the clamping rod 206. The clamping block 208 and the clamping rod 206 form an F-shaped design. The clamping area is a concave area on the inner side of the clamping block 208 and the clamping rod 206. The position of the clamping block 208 is adjusted by the cooperation of the screw rod 209 and the motor 202, thereby realizing the adjustment of the clamping height.

[0029] In this embodiment, the fixed rod 301 is slidably connected to the telescopic rod 302, and a limit screw 303 is arranged between the fixed rod 301 and the telescopic rod 302. The limit screw 303 passes through the fixed rod 301 and the telescopic rod 302, and a nut adapted to the limit screw 303 is preset inside the telescopic rod 302. The limit screw 303 is fixed by the nut, and the extension length of the telescopic rod 302 is limited by the limit screw 303.

[0030] In this embodiment, both ends of the inclined rod 304 are screwed with connecting plates 305, and the connecting plates 305 are fixedly connected to the fixed rod 301 and the fixed block 103 respectively. The rear end of the fixed rod 301 is screwed to the movable block 102, and the fixed tube is suspended by the inclined rod 304. The inclined rod 304, the fixed tube and the support column 101 form a triangular structure, which improves the stability of the fixed rod 301.

[0031] Specifically, when the box beam needs to be hoisted, a remote controller is configured to activate the electronic components in the control device, and the motor 202 is controlled by the remote controller. The distance between the clamping rods 206 and the distance between the clamping block 208 and the clamping rod 206 are adjusted according to the size of the box beam to adapt to the width and height of the box beam. The hoisting points and the number of hoisting devices are selected according to the length of the box beam. After the clamping is completed, the support column 101 with a lifting function is controlled to lift the box beam to carry out the hoisting work of the box beam.

[0032] The adjustment principle of the hoisting assembly 200 is as follows: the driving gear 203 is controlled to rotate by the motor 202, and the driving gear 203 drives the driven gear 204 to rotate synchronously, so that the threaded rod 205 rotates synchronously. Based on the bidirectional thread of the threaded rod 205, the clamping blocks 208 on both sides of the fixed shell 201 can move inward or outward synchronously to adjust the clamping width. When the threaded rod 205 mobilizes the clamping rod 206 to move, the clamping rod 206 slides along the guide, and the clamping block 208 is controlled by the motor 202 in the clamping rod 206 to move up and down to adjust the clamping height, so as to adjust the clamping size, thereby adapting to box beams of different sizes;

[0033] Taking into account the problem of lifting angle, the rear end of the fixed rod 301 is connected to the movable block 102 sleeved on the outside of the support column 101, and the movable block 102 moves up and down on the outer surface of the support column 101 to adjust the angle between the fixed rod 301 and the support column 101. The movable block 102 moves downward, the angle becomes smaller, and the fixed rod 301 drives the end of the telescopic rod 302 to lift, the movable block 102 moves upward, the angle becomes larger, and the end of the telescopic rod 302 is driven downward, and the movable block 102 is fixed to the support column 101 by screws to achieve the lifting height adjustment of the lifting assembly 200, which can be used when the support column 101 rises to a point where it cannot move or the height of the support column 101 is fixed, and while the fixed rod 301 moves, the fixed rod 301 rotates on the outside of the inclined rod 304 through the connecting plate 305, and the movement of the fixed rod 301 is stabilized by the inclined rod 304, so that the fixed rod 301 is suspended.

[0034] It should be noted that the support columns 101 of conventional lifting devices are all designed to be liftable, and some are of fixed height. In this application, there is no limitation on whether the support columns 101 are liftable or fixed height, and it needs to be selected according to the actual use scenario of the construction.

[0035] The support column 101, movable block 102, fixed block 103, fixed shell 201, motor 202, driving gear 203, passive gear 204, threaded rod 205, clamping rod 206, connecting block 207, clamping block 208, screw 209, guide rod 2010, fixed rod 301, telescopic rod 302, limit screw 303, inclined rod 304, connecting plate 305 and other components of the utility model are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or through conventional experimental methods.

[0036] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0038] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A box girder hoisting device, characterized in that: The invention comprises a support assembly (100), wherein the support assembly (100) comprises a support column (101), a movable block (102) and a fixed block (103), wherein the fixed block (103) is fixed near the top of the support column (101), the movable block (102) is arranged below the fixed block (103), and the movable block (102) is sleeved on the outer side of the support column (101); A hoisting assembly (200), wherein the hoisting assembly (200) is arranged on one side of the supporting assembly (100), and the hoisting assembly (200) comprises a fixed shell (201), a motor (202), a driving gear (203), a passive gear (204), a threaded rod (205) and a clamping rod (206); the motor (202) is screwed to one side of the motor (202) shell, the driving gear (203) is arranged at the output end of the motor (202), the passive gear (204) is arranged below the driving gear (203), the threaded rod (205) penetrates the passive gear (204), and clamping rods (206) are arranged on both sides of the bottom close to the fixed shell (201); An adjustment component (300) is arranged between the hoisting component (200) and the supporting component (100), and the adjustment component (300) comprises a fixed rod (301), a telescopic rod (302) and an inclined rod (304). The fixed rod (301) is sleeved on the rear end of the telescopic rod (302), the front end bottom of the telescopic rod (302) is screwed to the fixed shell (201), and the inclined rod (304) is arranged between the fixed rod (301) and the fixed block (103).

2. A box girder hoisting device according to claim 1, characterized in that: The output end of the motor (202) is transmission-connected to the driving gear (203), the driven gear (204) is meshed with the driving gear (203), and both are arranged inside the fixed shell (201), the threaded rod (205) is screw-connected to the driven gear (204), and the threaded rod (205) is designed as a bidirectional threaded rod (205).

3. A box beam hoisting device according to claim 2, characterized in that: The clamping rod (206) is of L-shaped design. A connecting block (207) is provided at the upper end of the clamping rod (206). The connecting block (207) is threadedly matched with the threaded rod (205). A guide rod (2010) is provided below the passive gear (204). The guide rod (2010) passes through the fixed shell (201) and the connecting block (207) and is threadedly matched with the fixed shell (201). The connecting block (207) is slidably connected to the guide rod (2010).

4. A box beam hoisting device according to claim 3, characterized in that: A clamping block (208) is arranged on the inner side of the clamping rod (206), a screw rod (209) is arranged between the clamping block (208) and the clamping rod (206), the screw rod (209) passes through the rear end of the clamping block (208) and is threadedly engaged with the clamping block (208), the motor (202) is arranged at the upper end of the screw rod (209), and the motor (202) is embedded in the interior of the clamping rod (206).

5. The box girder hoisting device according to claim 1, characterized in that: The fixed rod (301) is slidably connected to the telescopic rod (302), a limit screw (303) is arranged between the fixed rod (301) and the telescopic rod (302), the limit screw (303) passes through the fixed rod (301) and the telescopic rod (302), and a nut adapted to the limit screw (303) is preset inside the telescopic rod (302).

6. A box girder hoisting device according to claim 5, characterized in that: Both ends of the inclined tie rod (304) are screwed to connecting plates (305), the connecting plates (305) are respectively fixedly connected to the fixing rod (301) and the fixing block (103), and the rear end of the fixing rod (301) is screwed to the movable block (102).

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