Anti-toppling structure of portal crane

Abstract

The utility model relates to the technical field of portal cranes, and discloses an anti-toppling structure of a portal crane, which comprises a portal crane body, a plurality of side frames are respectively and fixedly mounted on the outer side of the portal crane body, a lifting groove is formed in one side of each side frame, a lifting block is movably mounted in each lifting groove, and a plurality of anti-toppling structures are arranged on the lifting blocks. The side frame is provided with a lifting driving mechanism used for the lifting block, a mounting plate is fixedly mounted on one side of the lifting block, and a drilling motor is fixedly mounted on the top side of the mounting plate. Four drill rods are spirally drilled into the ground through multiple sets of lifting driving mechanisms, when the drill rods are drilled to a proper depth, multiple sets of first expansion plates and second expansion plates in the four drill rods are synchronously unfolded and inserted into surrounding soil by opening multiple hydraulic push rods, and then the stability of the portal crane body is improved; and the condition that the portal crane body collapses is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of gantry cranes, in particular to an anti-dumping structure of a gantry crane. Background Art

[0002] Gantry crane is a kind of deformation of bridge crane, also called gantry crane. It is mainly used for loading and unloading of outdoor cargo yard, material yard cargo and bulk cargo. Gantry crane has the characteristics of high site utilization, large operating range, wide adaptability and strong versatility, and is widely used in port cargo yards.

[0003] The existing gantry cranes are generally tall and are installed on the ground through a gantry crane base, which has low stability. Since there is no anti-dumping structure on the side of the gantry crane, there is a risk of the gantry crane collapsing. Therefore, we propose a gantry crane anti-dumping structure to solve the above problem. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a gantry crane anti-dumping structure for solving the above-mentioned problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A gantry crane anti-dumping structure comprises a gantry crane body, a plurality of side frames are fixedly installed on the outer side of the gantry crane body, a lifting groove is opened on one side of the side frame, a lifting block is movably installed in the lifting groove, a lifting drive mechanism for the lifting block is arranged on the side frame, a mounting plate is fixedly installed on one side of the lifting block, a drilling motor is fixedly installed on the top side of the mounting plate, a drill rod is fixedly installed on the output shaft of the drilling motor, a rod chamber is opened in the drill rod, a lower articulated seat is fixedly installed on the bottom inner wall of the rod chamber, an upper articulated seat is movably installed in the rod chamber, a plurality of expansion mechanisms are arranged between the lower articulated seat and the upper articulated seat, and a pushing mechanism for the upper articulated seat is arranged in the drill rod.

[0007] Preferably, a plurality of side frames are respectively located at the four corners of the gantry crane body, and the corresponding two side frames are symmetrically arranged. By synchronously spirally drilling the drill rods at the four corners of the gantry crane body into the ground, the stability of the gantry crane body can be improved.

[0008] Preferably, the cross-section of the lifting slot is arranged in a convex structure, and the lifting block is adapted to the lifting slot, so that the lifting block can slide in the lifting slot easily.

[0009] Preferably, the lifting drive mechanism includes a lifting motor and a threaded rod. The lifting motor is fixedly installed on the top side of the side frame, and one end of the threaded rod is fixedly installed on the output shaft of the lifting motor. The other end of the threaded rod is threadedly penetrated to the outside of the lifting block and is rotatably installed on the bottom inner wall of the lifting slot. The drilling rod can be driven to move up and down through the lifting drive mechanism.

[0010] Preferably, the expansion mechanism includes a first expansion plate and a second expansion plate, the first expansion plate is hingedly installed in the upper hinge seat, and the second expansion plate is hingedly installed in the lower hinge seat, the first expansion plate and the second expansion plate are hingedly connected, and when the upper hinge seat is subjected to a downward force, multiple groups of first expansion plates and second expansion plates are synchronously driven to unfold and insert into the surrounding soil.

[0011] Preferably, the pushing mechanism includes an installation groove and a hydraulic push rod, the top inner wall of the rod chamber is provided with an installation groove, the top inner wall of the installation groove is fixedly installed with a hydraulic push rod, the output end of the hydraulic push rod is fixedly installed on the top side of the upper hinge seat, and by opening the hydraulic push rod, the upper hinge seat can be driven to move downward in the rod chamber.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The anti-tipping structure of the gantry crane is characterized in that drill rods are arranged at the four corners of the gantry crane body, and four drill rods are spirally drilled into the ground through multiple sets of lifting drive mechanisms. When drilling to a suitable depth, multiple sets of first expansion plates and second expansion plates in the four drill rods are opened by opening multiple hydraulic push rods, so as to synchronously unfold and insert into the surrounding soil, thereby improving the stability of the gantry crane body and reducing the possibility of collapse of the gantry crane body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model in a three-dimensional partial cross-section;

[0015] Figure 2 It is a structural schematic diagram of a partial cross-section of the side frame of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the utility model with an expanded viewing angle;

[0017] Figure 4 It is a structural schematic diagram of a partial cross-section of the drill rod of the utility model;

[0018] Figure 5 For this utility model Figure 4 The structural diagram of part A in the figure;

[0019] Figure 6 It is a structural schematic diagram of the utility model from an exploded perspective.

[0020] In the figure: 1. gantry crane body; 2. side frame; 3. lifting slot; 4. lifting block; 5. lifting motor; 6. threaded rod; 7. mounting plate; 8. drilling motor; 9. drill rod; 10. rod chamber; 11. lower articulated seat; 12. upper articulated seat; 13. first extension plate; 14. second extension plate; 15. mounting slot; 16. hydraulic push rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Reference Figure 1-6 A gantry crane anti-dumping structure comprises a gantry crane body 1, a plurality of side frames 2 are fixedly installed on the outer side of the gantry crane body 1, a lifting groove 3 is opened on one side of the side frame 2, a lifting block 4 is movably installed in the lifting groove 3, a lifting driving mechanism for the lifting block 4 is arranged on the side frame 2, and the lifting driving mechanism comprises a lifting motor 5 and a threaded rod 6, a lifting motor 5 is fixedly installed on the top side of the side frame 2, one end of the threaded rod 6 is fixedly installed on the output shaft of the lifting motor 5, and the other end of the threaded rod 6 is threadedly penetrated to the outside of the lifting block 4 and rotatably installed on the bottom inner wall of the lifting groove 3, and the drill rod 9 can be driven to move up and down through the lifting driving mechanism; a mounting plate 7 is fixedly installed on one side of the lifting block 4, a drilling motor 8 is fixedly installed on the top side of the mounting plate 7, a drill rod 9 is fixedly installed on the output shaft of the drilling motor 8, a rod chamber 10 is opened in the drill rod 9, a lower hinge seat 11 is fixedly installed on the bottom inner wall of the rod chamber 10, and a lower hinge seat 11 is movably installed in the rod chamber 10. An upper hinge seat 12 is installed, and multiple expansion mechanisms are arranged between the lower hinge seat 11 and the upper hinge seat 12, the expansion mechanism includes a first expansion plate 13 and a second expansion plate 14, the first expansion plate 13 is hingedly installed in the upper hinge seat 12, and the second expansion plate 14 is hingedly installed in the lower hinge seat 11, the first expansion plate 13 and the second expansion plate 14 are hingedly connected, when the upper hinge seat 12 is subjected to a downward force, it synchronously drives multiple groups of first expansion plates 13 and second expansion plates 14 to unfold and insert into the surrounding soil; a pushing mechanism for the upper hinge seat 12 is arranged in the drill rod 9, the pushing mechanism includes a mounting groove 15 and a hydraulic push rod 16, the top inner wall of the rod chamber 10 is provided with a mounting groove 15, the top inner wall of the mounting groove 15 is fixedly installed with a hydraulic push rod 16, the output end of the hydraulic push rod 16 is fixedly installed on the top side of the upper hinge seat 12, and the upper hinge seat 12 can be driven to move downward in the rod chamber 10 by opening the hydraulic push rod 16.

[0023] Furthermore, a plurality of side frames 2 are respectively located at the four corners of the gantry crane body 1, and the corresponding two side frames 2 are symmetrically arranged. By synchronously spirally drilling the drill rods 9 at the four corners of the gantry crane body 1 into the ground, the stability of the gantry crane body 1 can be improved.

[0024] Furthermore, the cross section of the lifting slot 3 is arranged in a convex structure, and the lifting block 4 is adapted to the lifting slot 3 , so that the lifting block 4 can slide in the lifting slot 3 .

[0025] During use: by turning on the drilling motor 8, the drill rod 9 is rotated, and at the same time, the lifting motor 5 is turned on to rotate the threaded rod 6 and drive the lifting block 4 to slide downward in the lifting groove 3, thereby driving the drill rod 9 to spirally drill into the ground. When drilling to a suitable depth, by turning on the hydraulic push rod 16, the upper hinge seat 12 is driven to move downward in the rod chamber 10, and the multiple groups of first expansion plates 13 and second expansion plates 14 are synchronously driven to unfold and insert into the surrounding soil, thereby fixing the drill rod 9. The method in this case is to synchronously spirally drill the drill rods 9 at the four corners of the gantry crane body 1 into the ground, and then use multiple groups of hydraulic push rods 16 to make the multiple groups of first expansion plates 13 and second expansion plates 14 in the four drill rods 9 synchronously unfold and insert into the surrounding soil, thereby improving the stability of the gantry crane body 1 and reducing the collapse of the gantry crane body 1.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gantry crane anti-dumping structure, comprising a gantry crane body (1), characterized in that: A plurality of side frames (2) are fixedly mounted on the outside of the gantry crane body (1), a lifting groove (3) is provided on one side of the side frame (2), a lifting block (4) is movably mounted in the lifting groove (3), a lifting drive mechanism for the lifting block (4) is provided on the side frame (2), a mounting plate (7) is fixedly mounted on one side of the lifting block (4), a drilling motor (8) is fixedly mounted on the top side of the mounting plate (7), a drill rod (9) is fixedly mounted on the output shaft of the drilling motor (8), a rod chamber (10) is provided in the drill rod (9), a lower hinge seat (11) is fixedly mounted on the inner wall of the bottom side of the rod chamber (10), an upper hinge seat (12) is movably mounted in the rod chamber (10), a plurality of expansion mechanisms are provided between the lower hinge seat (11) and the upper hinge seat (12), and a pushing mechanism for the upper hinge seat (12) is provided in the drill rod (9).

2. The anti-dumping structure of a gantry crane according to claim 1, characterized in that: The plurality of side frames (2) are respectively located at the four corners of the gantry crane body (1), and are symmetrically arranged with respect to two corresponding side frames (2).

3. The anti-dumping structure of a gantry crane according to claim 1, characterized in that: The cross-section of the lifting groove (3) is arranged in a convex structure, and the lifting block (4) is adapted to the lifting groove (3).

4. The anti-dumping structure of a gantry crane according to claim 1, characterized in that: The lifting drive mechanism comprises a lifting motor (5) and a threaded rod (6); the lifting motor (5) is fixedly mounted on the top side of the side frame (2); one end of the threaded rod (6) is fixedly mounted on the output shaft of the lifting motor (5); the other end of the threaded rod (6) is threadedly penetrated to the outside of the lifting block (4) and is rotatably mounted on the bottom inner wall of the lifting slot (3).

5. The anti-dumping structure of a gantry crane according to claim 1, characterized in that: The expansion mechanism comprises a first expansion plate (13) and a second expansion plate (14); the first expansion plate (13) is hingedly mounted in the upper hinge seat (12); the second expansion plate (14) is hingedly mounted in the lower hinge seat (11); the first expansion plate (13) and the second expansion plate (14) are hingedly connected.

6. The anti-dumping structure of a gantry crane according to claim 5, characterized in that: The pushing mechanism comprises a mounting groove (15) and a hydraulic push rod (16); the mounting groove (15) is provided on the top inner wall of the rod chamber (10); the hydraulic push rod (16) is fixedly mounted on the top inner wall of the mounting groove (15); and the output end of the hydraulic push rod (16) is fixedly mounted on the top side of the upper hinge seat (12).

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