Rear supporting leg device of gantry crane bridge girder erection machine

Abstract

The utility model discloses a gantry crane bridge girder erection machine rear supporting leg device which comprises a gantry crane main body, supporting columns are arranged at the bottom of the gantry crane main body at equal intervals, a supporting plate is fixedly connected to the bottoms of the supporting columns, moving wheels are fixedly connected to the bottom of the supporting plate at equal intervals, and limiting assemblies are arranged in the supporting plate at equal intervals. A supporting assembly is arranged between one side of the gantry crane body and the top of the supporting plate, a containing groove is formed in the top of the supporting column, the interior of the containing groove is slidably connected with the bottom of the gantry crane body, and a rotating assembly is arranged in the containing groove. According to the rear supporting leg device of the gantry crane bridge girder erection machine, the rotating assembly, the supporting assembly and the limiting assembly are additionally arranged, the universality and applicability of equipment can be improved, the gantry crane bridge girder erection machine can be more suitable for various complex construction environments, and therefore the overall operation efficiency and safety are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gantry suspension bridge cranes, in particular to a rear leg device of a gantry suspension bridge crane. Background Technique

[0002] A gantry suspension bridge crane is a hoisting device used for hoisting and transporting heavy objects, and is widely used in construction sites, industrial factories, docks, workshops and other places.

[0003] The patent document with the application number CN205023729U discloses a gantry suspension, which includes a cross beam, a hanging plate and two support frames arranged in parallel at both ends of the cross beam. The support frame includes a column, a base beam and two diagonal braces. The upper end of the column is fixedly connected to one end of the cross beam, the lower end of the column is vertically and fixedly connected to the middle of the base beam, and the diagonal braces are symmetrically arranged between both ends of the base beam and the upper end of the column respectively. The upper end of the hanging plate is fixedly connected to the lower side of the middle of the cross beam, and the lower end of the hanging plate is provided with a mounting hole.

[0004] The structure of this suspension can enable itself to be used in a smaller space, but the structure of its suspension is relatively single and cannot be applied to outdoor use. Therefore, its general performance needs to be improved. In view of the above problems, we have introduced a rear leg device of a gantry suspension bridge crane. Content of the Utility Model

[0005] The utility model discloses a rear leg device of a gantry suspension bridge crane, studies and improves the existing structure and deficiencies, and provides a rear leg device of a gantry suspension bridge crane to achieve the purpose of better practical value.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A rear leg device of a gantry suspension bridge crane includes a gantry suspension bridge crane main body. Support columns are equidistantly arranged at the bottom of the gantry suspension bridge crane main body. A support plate is fixedly connected to the bottom of the support column. Movable wheels are equidistantly and fixedly connected to the bottom of the support plate. Limiting components are equidistantly arranged inside the support plate. A support component is arranged between one side of the gantry suspension bridge crane main body and the top of the support plate. A receiving groove is opened at the top of the support column. The inside of the receiving groove is slidably connected to the bottom of the gantry suspension bridge crane main body. A rotating component is arranged inside the receiving groove.

[0008] In a preferred scheme, the rotating component includes a lead screw. The lead screw is rotatably connected to the bottom of the inner wall of the receiving groove. A sliding groove is opened at the bottom of the gantry suspension bridge crane main body. The outside of the lead screw is threadedly connected to the bottom of the gantry suspension bridge crane main body. The top of the lead screw extends into the inside of the sliding groove and is fixedly connected to a slider. The outside of the slider is slidably connected to the inside of the sliding groove.

[0009] In a preferred embodiment, the rotating assembly further includes a motor, which is arranged on one side of the support column. One end of the output shaft of the motor extends into the inner part of the receiving groove and is fixedly connected with a first bevel gear. A second bevel gear is fixedly connected to the outer side of the lead screw, and the first bevel gear meshes with the second bevel gear.

[0010] In a preferred embodiment, the support assembly includes a first fixing block, which is fixedly connected to both sides of the gantry crane main body at equal intervals. Second fixing blocks are fixedly connected to the top of the support plate at equal intervals. A first support rod is rotatably connected between one sides of the first fixing blocks, and a second support rod is rotatably connected between one sides of the second fixing blocks. A through groove is formed at the top of the second support rod. The bottom of the first support rod extends into the inner part of the through groove and is fixedly connected with a limiting block, and the outer side of the limiting block is slidably connected with the inner part of the through groove.

[0011] In a preferred embodiment, a spring is arranged between the bottom of the limiting block and the bottom of the inner wall of the through groove.

[0012] In a preferred embodiment, the limiting assembly includes a threaded rod, which is threadedly connected to the inside of the support plate. The bottom of the threaded rod is rotatably connected with a base, and the top of the threaded rod is fixedly connected with a turntable.

[0013] In a preferred embodiment, a protective box is arranged outside the motor.

[0014] The rear leg device of the gantry crane provided by the present utility model has the following advantages:

[0015] First, by arranging a rotating assembly inside the support column, the gantry crane main body can be driven to move up and down to adjust the height of the gantry crane main body, which is convenient for adjusting the height under different operating conditions and adapting to various hoisting requirements.

[0016] Second, by arranging the support assembly, the supporting force of the support column on the gantry crane main body can be improved, the overall stability can be enhanced, the safety during loading heavy objects can be ensured, and the risk of structural damage can be reduced.

[0017] Third, by arranging the limiting assembly in cooperation with the moving wheels, the equipment can be easily moved to the required position and fixed after use. This flexibility makes it suitable for use at different job sites. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of a rear leg device of a gantry crane provided by the present utility model.

[0019] Figure 2The front view sectional schematic diagram of a rear leg device of a gantry crane bridge machine proposed by the present utility model.

[0020] Figure 3 The bottom view schematic diagram of a rear leg device of a gantry crane bridge machine proposed by the present utility model.

[0021] Figure 4 A rear leg device of a gantry crane bridge machine proposed by the present utility model Figure 2 The enlarged schematic diagram at position A in

[0022] In the attached drawings: 1. Gantry crane main body; 2. Support column; 3. Support plate; 4. Moving wheel; 5. Turntable; 6. Threaded rod; 7. Base; 8. Receiving groove; 9. Lead screw; 10. Slide groove; 11. Slide block; 12. Protection box; 13. Motor; 14. First bevel gear; 15. Second bevel gear; 16. First fixing block; 17. Second fixing block; 18. First support rod; 19. Second support rod; 20. Through groove; 21. Limit block; 22. Spring. Specific implementation manners

[0023] Next, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Usually, the components of the embodiments of the present application described and marked in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application to be protected, but only represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0024] A rear leg device of a gantry crane bridge machine disclosed by the present utility model is mainly applied to the scenario of a gantry crane bridge machine.

[0025] Referring to Figures 1 to 4 , a rear leg device of a gantry crane bridge machine includes: a gantry crane main body 1, support columns 2 are equidistantly arranged at the bottom of the gantry crane main body 1, a support plate 3 is fixedly connected to the bottom of the support column 2, moving wheels 4 are equidistantly and fixedly connected to the bottom of the support plate 3, a limiting component is equidistantly arranged inside the support plate 3, a support component is arranged between one side of the gantry crane main body 1 and the top of the support plate 3, a receiving groove 8 is opened at the top of the support column 2, the inside of the receiving groove 8 is slidably connected to the bottom of the gantry crane main body 1, and a rotating component is arranged inside the receiving groove 8.

[0026] In the above technical solution, considering the problem that the structure of the hanging bracket is relatively simple and cannot be applied to outdoor use, so its general performance needs to be improved. To solve such problems, the specific operations are as follows: By arranging a rotating component inside the support column 2, the main body 1 of the gantry hanging bracket can be driven to move up and down to adjust the height of the main body 1 of the gantry hanging bracket, which is convenient for adjusting the height under different operating conditions and adapting to various hoisting requirements. By arranging a support component, the support strength of the support column 2 for the main body 1 of the gantry hanging bracket can be improved, enhancing the overall stability, ensuring safety when carrying heavy objects, and reducing the risk of structural damage. By arranging a limiting component in cooperation with the moving wheels 4, the equipment can be easily moved to the required position and fixed after use. This flexibility makes it suitable for use at different job sites.

[0027] Referring to Figures 1 to 4 , in a preferred embodiment, the rotating component includes a lead screw 9, the lead screw 9 is rotatably connected to the bottom of the inner wall of the receiving groove 8, a chute 10 is formed at the bottom of the main body 1 of the gantry hanging bracket, the outer side of the lead screw 9 is threadedly connected to the bottom of the main body 1 of the gantry hanging bracket, the top of the lead screw 9 extends into the inside of the chute 10 and is fixedly connected to a slider 11, and the outer side of the slider 11 is slidably connected to the inside of the chute 10. The rotating component further includes a motor 13, the motor 13 is arranged on one side of the support column 2, one end of the output shaft of the motor 13 extends into the inside of the receiving groove 8 and is fixedly connected to a first bevel gear 14, a second bevel gear 15 is fixedly connected to the outer side of the lead screw 9, and the first bevel gear 14 meshes with the second bevel gear 15;

[0028] In the above technical solution, considering the problem that the structure of the hanging bracket is relatively simple and cannot be applied to outdoor use, to solve such problems, the specific operations are as follows: By starting the motor 13 to drive the first bevel gear 14 to rotate, and then using the meshing relationship between the first bevel gear 14 and the second bevel gear 15, the second bevel gear 15 and the lead screw 9 are further driven to rotate. Under the action of the lead screw 9, the main body 1 of the gantry hanging bracket moves upward inside the receiving groove 8, thereby adjusting the height of the main body 1 of the gantry hanging bracket. In this way, in practical applications, the height can be flexibly adjusted according to the needs of the task to adapt to different materials and operating conditions, improving the practicability of the equipment.

[0029] Referring to Figures 1 to 3, in a preferred embodiment, the support assembly includes a first fixing block 16 which is fixedly connected to both sides of the gantry hanger main body 1 at equal intervals. The top of the support plate 3 is fixedly connected with second fixing blocks 17 at equal intervals. A first support rod 18 is rotatably connected between one sides of the first fixing blocks 16. A second support rod 19 is rotatably connected between one sides of the second fixing blocks 17. A through groove 20 is formed at the top of the second support rod 19. The bottom of the first support rod 18 extends into the interior of the through groove 20 and is fixedly connected with a limiting block 21. The outer side of the limiting block 21 is slidably connected with the interior of the through groove 20. A spring 22 is arranged between the bottom of the limiting block 21 and the bottom inner wall of the through groove 20. When the height of the gantry hanger main body 1 is adjusted, one end of the first support rod 18 will slide inside the second support rod 19, so as to ensure good supporting force for the gantry hanger main body 1. The arrangement of the spring 22 can make the movement process of the first support rod 18 smoother and make the adjustment process of the gantry hanger main body 1 smoother.

[0030] Referring to Figures 1 to 4 , in a preferred embodiment, the limiting assembly includes a threaded rod 6 which is threadedly connected to the interior of the support plate 3. The bottom of the threaded rod 6 is rotatably connected with a base 7. The top of the threaded rod 6 is fixedly connected with a turntable 5. A protective box 12 is arranged outside the motor 13. When the device moves to a designated position, rotate the turntable 5 to drive the threaded rod 6 to rotate, so as to drive the base 7 to move downward and finally abut against the ground, thereby fixing and limiting the device.

[0031] Working principle: When in use, first move the device to a designated position through the moving wheels 4, then rotate the turntable 5 to drive the threaded rod 6 to rotate, so as to drive the base 7 to move downward and finally abut against the ground to fix the device. Then start the motor 13 to drive the first bevel gear 14 to rotate, and then utilize the meshing relationship between the first bevel gear 14 and the second bevel gear 15 to further drive the second bevel gear 15 and the lead screw 9 to rotate. Under the action of the lead screw 9, the gantry hanger main body 1 moves upward inside the receiving groove 8, so as to adjust the height of the gantry hanger main body 1. At the same time, one end of the first support rod 18 will slide inside the second support rod 19, so as to ensure good supporting force for the gantry hanger main body 1. The content not described in detail in this specification belongs to the prior art well known to those skilled in the art.

[0032] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. The substitution may be the substitution of part of the structure, device, method steps, or a complete technical solution. Any equivalent substitution or change made according to the technical solution of the present invention and its inventive concept should be covered within the protection scope of the present invention.

Claims

1. A rear outrigger device for a gantry crane bridge crane, comprising a gantry crane body (1), characterized in that: Support columns (2) are equidistantly arranged at the bottom of the gantry hanger body (1), a support plate (3) is fixedly connected to the bottom of the support column (2), moving wheels (4) are equidistantly fixedly connected to the bottom of the support plate (3), limiting components are equidistantly arranged inside the support plate (3), a support component is arranged between one side of the gantry hanger body (1) and the top of the support plate (3), a receiving groove (8) is opened at the top of the support column (2), the inside of the receiving groove (8) is slidably connected to the bottom of the gantry hanger body (1), and a rotating component is arranged inside the receiving groove (8).

2. The rear outrigger device of a gantry crane bridge crane according to claim 1, characterized in that: The rotating assembly comprises a screw rod (9), the screw rod (9) being rotatably connected to the bottom of the inner wall of the receiving groove (8), a slide groove (10) being provided at the bottom of the gantry hanger body (1), the outer side of the screw rod (9) being threadedly connected to the bottom of the gantry hanger body (1), the top of the screw rod (9) extending to the inside of the slide groove (10) and being fixedly connected to a slider (11), the outer side of the slider (11) being slidably connected to the inside of the slide groove (10).

3. The rear outrigger device of a gantry crane bridge crane according to claim 2, characterized in that: The rotating assembly further comprises a motor (13), wherein the motor (13) is provided on one side of the support column (2), wherein one end of the output shaft of the motor (13) extends into the interior of the receiving groove (8) and is fixedly connected to a first bevel gear (14), and the outer side of the screw rod (9) is fixedly connected to a second bevel gear (15), and the first bevel gear (14) is meshed with the second bevel gear (15).

4. The rear outrigger device of a gantry crane bridge crane according to claim 1, characterized in that: The support assembly comprises a first fixed block (16), the first fixed block (16) being equidistantly fixedly connected to two sides of the gantry hanger body (1), the top of the support plate (3) being equidistantly fixedly connected to a second fixed block (17), one side of the first fixed block (16) being rotatably connected to a first support rod (18), one side of the second fixed block (17) being rotatably connected to a second support rod (19), the top of the second support rod (19) being provided with a through slot (20), the bottom of the first support rod (18) extending to the inside of the through slot (20) and being fixedly connected to a limit block (21), the outer side of the limit block (21) being slidably connected to the inside of the through slot (20).

5. The rear outrigger device of a gantry crane bridge crane according to claim 4, characterized in that: A spring (22) is provided between the bottom of the limiting block (21) and the bottom of the inner wall of the through slot (20).

6. The rear outrigger device of a gantry crane bridge crane according to claim 1, characterized in that: The limiting assembly comprises a threaded rod (6), the threaded rod (6) being threadedly connected to the inside of the support plate (3), the bottom of the threaded rod (6) being rotatably connected to a base (7), and the top of the threaded rod (6) being fixedly connected to a turntable (5).

7. The rear outrigger device of a gantry crane bridge crane according to claim 3, characterized in that: A protection box (12) is provided on the outside of the motor (13).

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