Plate hook connecting mechanism of gantry lifting appliance

Abstract

The utility model relates to a plate hook connecting mechanism of a gantry sling, and belongs to the technical field of mechanical connecting devices of gantry slings. The plate hook comprises second connecting pieces, a connecting beam and a plate hook body, the number of the second connecting pieces is two, the second connecting pieces and the first connecting pieces are arranged correspondingly, and the second connecting pieces are connected with the connecting positions of the first connecting pieces; the two ends of the connecting beam are connected with the two second connecting pieces correspondingly. The two sets of plate hook bodies are arranged and correspond to the first connecting pieces, the upper ends of the plate hook bodies can be connected with the second connecting pieces, the horizontal distance between the two sets of plate hook bodies is smaller than the horizontal distance between the connecting positions of the two sets of first connecting pieces, and the plate hook bodies are used for hoisting workpieces. The gantry lifting appliance has the effects that the applicability of the gantry lifting appliance is improved, and meanwhile the cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical connection devices of gantry hoists, in particular to a plate hook connecting mechanism of a gantry hoist. BACKGROUND

[0002] In the steel smelting industry, the gantry hoist is one of the important production equipment, mainly used for the handling of steel ladles. With the continuous optimization of production process and technological progress, new production lines gradually replace the old equipment, resulting in different specifications of steel ladles existing in the same transition period.

[0003] At present, in order to solve this problem, the common method is to directly purchase or customize multiple sets of special gantry hoists suitable for different specifications of steel ladles, so as to be suitable for different specifications of steel ladles.

[0004] Although this method can guarantee that the hoisting needs of steel ladles of various specifications are met, the purchase cost is high, and most of the hoists will be idle or even scrapped after the transition ends, causing great waste.

[0005] In the above related technology, the gantry hoist cannot balance the cost and applicability. CONTENT OF THE UTILITY MODEL

[0006] In order to improve the applicability of the gantry hoist while reducing the cost, the present application provides a plate hook connecting mechanism of a gantry hoist.

[0007] The plate hook connecting mechanism of the gantry hoist provided by the present application adopts the following technical scheme:

[0008] A plate hook connecting mechanism of a gantry hoist, the gantry hoist comprising a cross beam and two groups of first connecting pieces, the upper end of the first connecting piece being connected to the cross beam, the two groups of first connecting pieces being horizontally spaced apart, the plate hook connecting mechanism of the gantry hoist comprising: a second connecting piece, the second connecting piece being provided in two groups, the second connecting piece being correspondingly arranged with the first connecting piece, the connection position of the second connecting piece and the first connecting piece being connected; a connecting beam, both ends of the connecting beam being connected to two second connecting pieces respectively; a plate hook body, the plate hook body being provided in two groups, the plate hook body being correspondingly arranged with the first connecting piece, the upper end of the plate hook body being capable of being connected to the second connecting piece, so that the horizontal distance between the two groups of plate hook bodies is less than the horizontal distance between the connection positions of the two groups of first connecting pieces, the plate hook body being used for hoisting workpieces.

[0009] By adopting the technical scheme, the horizontal distance between the two groups of plate hook bodies can be less than the original hoisting distance by additionally arranging the second connecting members and the connecting beams, that is, the horizontal distance between the two groups of plate hook bodies is less than the horizontal distance between the connecting positions of the two groups of first connecting members, so that the horizontal distance between the two groups of plate hook bodies can be flexibly adjusted without changing the original gantry hoist structure, to adapt to hoisting of a ladle body smaller than the original specification; meanwhile, compared with replacing the gantry hoist as a whole, the mode of additionally arranging the second connecting members and the connecting beams can reduce cost and waste.

[0010] Optionally, the second connecting member is provided with a first connecting hole, the connecting position is provided with a pin shaft, and the first connecting hole is matched with the pin shaft of the first connecting member to make the second connecting member hinged with the first connecting member.

[0011] By adopting the technical scheme, the second connecting member is hinged with the first connecting member, so that the second connecting member and the connecting beam can swing within a certain range during assembly, which helps to reduce the assembly difficulty and reduce the situation that one side is assembled and then subjected to excessive stress.

[0012] Optionally, the second connecting member is provided with a second connecting hole, and the second connecting hole is matched with the end of the connecting beam to make the connecting beam hinged with the second connecting member.

[0013] By adopting the technical scheme, on the basis of the second connecting member being hinged with the first connecting member, the hinging mode of the connecting beam and the second connecting member can make the connecting beam only subjected to tension, which reduces the component size and material cost; meanwhile, the second connecting member can swing around the pin shaft of the first connecting member, which can realize the length compensation of the connecting beam, so as to help to reduce the size precision of the connecting beam, and further reduce the machining precision and assembly difficulty.

[0014] Optionally, the second connecting member is provided with a third connecting hole, the horizontal distance between the two third connecting holes is less than the horizontal distance between the two pin shafts, and the upper end of the plate hook body is connected to the third connecting hole.

[0015] By adopting the technical scheme, the upper end of the plate hook body can be connected to the third connecting hole on the second connecting member, so that the horizontal distance between the plate hook bodies can be less than the horizontal distance between the connecting positions of the first connecting members, thereby adapting to the hoisting requirement of a ladle body smaller than the original specification.

[0016] Optionally, the first connecting hole, the second connecting hole and the third connecting hole of the same second connecting member are in triangular distribution.

[0017] By adopting the technical scheme, the first connecting hole, the second connecting hole and the third connecting hole on the second connecting piece are in triangular distribution, so that the mechanical properties between the connection points are more balanced, this design not only improves the overall stability of the structure, but also effectively disperses the stress concentration of each connection point, and enhances the safety and reliability of the gantry spreader.

[0018] Optionally, the upper surface of the connecting beam is vertically spaced apart from the lower surface of the cross beam.

[0019] By adopting the technical scheme, the second connecting piece can swing around the pin shaft, improve the feasibility of adjusting the distance between the two plate hook bodies, and reduce the risk of interference between the connecting beam and the cross beam.

[0020] Optionally, the upper end of the plate hook body can be connected to the first connecting piece, so that the horizontal distance between the two groups of plate hook bodies is equal to the horizontal distance between the connection positions of the two groups of first connecting pieces.

[0021] By adopting the technical scheme, the upper end of the plate hook body can be connected to the first connecting piece, so that when the connecting beam and the second connecting piece are not needed, the plate hook body can be directly installed on the original first connecting piece without the need to disassemble or replace other components, simplifying the operation process and improving the work efficiency; at the same time, this design maintains the functional integrity of the original gantry spreader, ensuring that it can flexibly adapt to the hoisting needs of different specifications of steel ladle bodies during and after the transition period, reducing costs and resource waste.

[0022] Optionally, the second connecting piece is detachably connected to the first connecting piece.

[0023] By adopting the technical scheme, the connecting beam and the second connecting piece can be conveniently installed and disassembled during the transition period and before and after the transition period without the need to modify the original spreader, effectively reducing costs and resource waste; at the same time, this detachable connection method also improves the flexibility and adaptability of the equipment, facilitating quick switching between different specifications of ladles.

[0024] In summary, the present application has the following at least one beneficial technical effect:

[0025] 1. By adding a connecting beam and a second connecting piece to the existing gantry spreader, the flexible adjustment of the distance between different specifications of plate hooks is achieved, solving the problems of high cost and resource waste caused by the need to replace multiple special spreaders during the transition period of new and old production lines;

[0026] 2. By using the second connecting piece to swing around the pin shaft, the length of the connecting beam can be compensated, greatly reducing the processing precision and assembly difficulty, and improving the reliability and stability of the overall system. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 This is an assembly diagram of the plate hook connection mechanism of the gantry crane according to an embodiment of this application.

[0028] Explanation of reference numerals in the attached figures:

[0029] 10. Crossbeam; 20. First connector; 1. Second connector; 2. Connecting beam; 3. Hook body. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 This application will be further described in detail below. In this embodiment, unless otherwise specified, "connection", "linking", and "fixing" are interpreted broadly, including fixed connection, detachable connection, connection to form an integral structure, mechanical connection, electrical connection, direct connection, indirect connection through an intermediary, internal connection, and interaction between two components, etc., and can be understood according to the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, in the description of this embodiment, terms such as "above," "below," "left," and "right," etc., are based on the orientation or positional relationships shown in the accompanying drawings and are used only for ease of description and simplification of operation. They 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, and therefore should not be construed as a limitation of this application. Unless otherwise stated, directional terms such as "inner" and "outer" used in this application refer to the outline of the corresponding component itself.

[0032] like Figure 1 As shown in the embodiment of this application, a hook connection mechanism (hereinafter referred to as the "connection mechanism") for a gantry crane is disclosed. The gantry crane includes a crossbeam 10 and two sets of first connecting members 20. The upper end of the first connecting member 20 is connected to the crossbeam 10, and the two sets of first connecting members 20 are horizontally spaced apart. The connection mechanism includes a second connecting member 1, a connecting beam 2, and a hook body 3, which is used to change the lifting spacing of the hook body 3 to be suitable for molten steel ladles of different specifications.

[0033] like Figure 1As shown, the second connecting piece 1 is provided in two groups, and the second connecting piece 1 is arranged correspondingly to the first connecting piece 20, and the second connecting piece 1 is connected to the connecting position of the first connecting piece 20. The two ends of the connecting beam 2 are respectively connected to two second connecting pieces 1, so as to realize the support of the connecting beam 2 through the two groups of second connecting pieces 1. The plate hook body 3 is provided in two groups, and the plate hook body 3 is arranged correspondingly to the first connecting piece 20. The upper end of the plate hook body 3 can be connected to the second connecting piece 1, so that the horizontal distance L2 between the two groups of plate hook bodies 3 is less than the horizontal distance L1 (i.e. the original hoisting distance) between the connecting positions of the two groups of first connecting pieces 20, so as to realize the change of the horizontal distance between the two groups of plate hook bodies 3, and the plate hook body 3 is used for hoisting the workpiece. In this embodiment, the workpiece is a steel ladle body.

[0034] By adding the second connecting piece 1 and the connecting beam 2, the horizontal distance between the two groups of plate hook bodies 3 can be less than the original hoisting distance, so that the horizontal distance between the two groups of plate hook bodies 3 can be flexibly adjusted without changing the original gantry hoist structure, so as to be suitable for hoisting the steel ladle body smaller than the original specification. At the same time, compared with replacing the whole gantry hoist, the method of adding the second connecting piece 1 and the connecting beam 2 can significantly reduce the cost and reduce the waste.

[0035] As shown in Figure 1 Optionally, the second connecting piece 1 is detachably connected to the first connecting piece 20, so that the second connecting piece 1 can be conveniently installed and detached during the transition period and before and after the transition period, without the need to modify the original hoist, thereby effectively reducing the cost and reducing the waste of resources. At the same time, this detachable connection method also improves the flexibility and adaptability of the equipment, and facilitates the quick switching between different specifications of the ladle body.

[0036] As shown in Figure 1 Optionally, the second connecting piece 1 is provided with a first connecting hole, and the connecting position is provided with a pin shaft. The first connecting hole is matched with the pin shaft of the first connecting piece 20, so that the second connecting piece 1 is hinged to the first connecting piece 20. The second connecting piece 1 is hinged to the first connecting piece 20, so that the second connecting piece 1 and the connecting beam 2 can swing within a certain range during assembly, which helps to reduce the assembly difficulty and reduce the situation that one side is assembled and then subjected to excessive stress.

[0037] Optionally, the second connecting piece 1 is provided with a second connecting hole, which cooperates with the end of the connecting beam 2 to make the connecting beam 2 hinged with the second connecting piece 1. On the basis of the hinging of the second connecting piece 1 with the first connecting piece 20, the hinging mode of the connecting beam 2 with the second connecting piece 1 can make the connecting beam 2 only subjected to tensile force, the stress is single, the strength requirement is reduced, which helps to reduce the size requirement of the component and the material cost. At the same time, since the precision requirement of the horizontal spacing between the plate hook bodies 3 is relatively low, and the assembly precision requirement of the connecting beam 2 is relatively high, the second connecting piece 1 can swing around the pin shaft of the first connecting piece 20, and the connecting beam 2 is hinged with the second connecting piece 1, which can realize the length compensation of the connecting beam 2, so that the length of the connecting beam 2 has a certain fault tolerance space, which helps to reduce the size precision and machining precision of the connecting beam 2, and reduces the assembly difficulty, so that the connecting beam 2 can be assembled by rotating the second connecting piece 1 in the case of a certain length error, and the reliable realization of the assembly is ensured. And, through the swing of the second connecting piece 1, the spacing between different plate hook bodies 3 can be set, which better adapts to different specifications of the ladle body. The two ends of the connecting beam 2 can be provided with hinging shafts to realize the hinging with the second connecting hole of the second connecting piece 1.

[0038] As shown in Figure 1 Optionally, the second connecting piece 1 is provided with a third connecting hole, and the horizontal spacing between the two third connecting holes is smaller than the horizontal spacing between the two pin shafts, and the upper ends of the two groups of plate hook bodies 3 can be connected to the two third connecting holes. The upper end of the plate hook body 3 can be connected to the third connecting hole on the second connecting piece 1, so that the horizontal spacing between the plate hook bodies 3 can be smaller than the horizontal spacing between the connection positions of the first connecting piece 20, thereby adapting to the hoisting demand of the ladle body smaller than the original specification. The connection mode of the plate hook body 3 with the third connecting hole is not limited, and reliable connection can be realized.

[0039] Optionally, the upper end of the plate hook body 3 can be connected to the first connecting piece 20, so that the horizontal distance between the two groups of plate hook bodies 3 is equal to the horizontal distance between the connection positions of the two groups of first connecting pieces 20. The upper end of the plate hook body 3 can be connected to the first connecting piece 20, so that when the connecting beam 2 and the second connecting piece 1 are not needed, by disassembling the pin shaft, the second connecting piece 1 is disassembled from the connecting beam 2, the plate hook body 3 can be directly installed on the original first connecting piece 20, realizing the lifting of the original specification steel ladle body, without the need to disassemble or replace other parts, simplifying the operation process and improving the work efficiency. At the same time, this design maintains the functional integrity of the original gantry lifting device, ensuring that it can flexibly adapt to the lifting needs of steel ladles of different specifications during and after the transition period, reducing costs and resource waste. It can be understood that the first connecting piece 1 can also be connected to other types of plate hooks to realize the lifting of the original specification steel ladle body. Specifically, after assembly, the distance between the first connecting holes of the two groups of second connecting pieces 1 is a, the horizontal distance between the second connecting holes of the two groups of second connecting pieces 1 is b, and the horizontal distance between the third connecting holes of the two groups of second connecting pieces 1 is c. In this embodiment, a>c>b, the horizontal distance L1 of the plate hook body 3 of the original gantry lifting device is a, and the horizontal distance L2 of the plate hook body 3 after adding the second connecting piece 1 and the connecting beam 2 is c.

[0040] As shown in Figure 1 , optionally, the first connecting hole, the second connecting hole and the third connecting hole of the same second connecting piece 1 are in triangular distribution, so that the mechanical properties between the connection points are more balanced. This design not only improves the overall stability of the structure, but also effectively disperses the stress concentration of each connection point, enhancing the safety and reliability of the gantry lifting device. In this embodiment, the third connecting hole is located below the first connecting hole and the second connecting hole.

[0041] As shown in Figure 1 , optionally, the upper surface of the connecting beam 2 and the lower surface of the cross beam 10 are vertically spaced, so that the connecting beam 2 is only subjected to tensile force, the stress is simple, the strength requirement is reduced, which helps to reduce the size of the component, thereby reducing the cost. At the same time, it can help the second connecting piece 1 to swing around the pin shaft, improve the feasibility of adjusting the distance between the two plate hook bodies 3, and reduce the risk of interference between the connecting beam 2 and the cross beam 10.

[0042] It can be understood that the connecting mechanism also includes structures necessary for connection, support, driving, positioning, limiting, control and the like to enable the connecting mechanism to operate normally; the shape, size, material and number of the connecting mechanism can be determined according to the need, as long as the corresponding functions can be realized.

[0043] The implementation principle of the plate hook connecting mechanism of the portal crane is that: by additionally arranging the second connecting piece 1 and the connecting beam 2, the horizontal spacing between the two groups of plate hook bodies 3 can be less than the original hoisting spacing, so that the horizontal spacing between the two groups of plate hook bodies 3 can be flexibly adjusted without changing the original portal crane structure, so as to be suitable for hoisting a ladle body smaller than the original specification; when it is necessary to hoist the original specification of the ladle body, the second connecting piece 1 and the connecting beam 2 are removed, and the plate hook body 3 is connected to the first connecting piece 20, so that the hoisting of the original specification of the ladle body can be realized; compared with the overall replacement of the portal crane, the additional arrangement of the second connecting piece 1 and the connecting beam 2 can reduce the cost and waste.

[0044] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A plate hook connecting mechanism for a gantry crane, characterized in that, The gantry crane includes a crossbeam (10) and two sets of first connecting members (20). The upper end of each first connecting member (20) is connected to the crossbeam (10). The two sets of first connecting members (20) are horizontally spaced apart. The hook connection mechanism of the gantry crane includes: The second connector (1) is provided in two sets. The second connector (1) is correspondingly provided with the first connector (20). The second connector (1) is connected to the first connector (20) at the connection position. A connecting beam (2), the two ends of which are respectively connected to two second connecting members (1); The plate hook body (3) is provided in two sets. The plate hook body (3) is correspondingly arranged with the first connecting member (20). The upper end of the plate hook body (3) can be connected to the second connecting member (1), so that the horizontal distance between the two sets of plate hook bodies (3) is less than the horizontal distance between the connection positions of the two sets of first connecting members (20). The plate hook body (3) is used to hoist the workpiece.

2. The plate hook connecting mechanism of the gantry crane according to claim 1, characterized in that, The second connector (1) is provided with a first connecting hole, and a pin is provided at the connecting position. The first connecting hole cooperates with the pin of the first connector (20) so that the second connector (1) is hinged to the first connector (20).

3. The plate hook connecting mechanism of the gantry crane according to claim 2, characterized in that, The second connector (1) is provided with a second connecting hole, which engages with the end of the connecting beam (2) to make the connecting beam (2) hinged to the second connector (1).

4. The plate hook connecting mechanism of the gantry crane according to claim 3, characterized in that, The second connector (1) is provided with a third connecting hole. The horizontal distance between the two third connecting holes is less than the horizontal distance between the two pins. The upper end of the plate hook body (3) is connected to the third connecting hole.

5. The plate hook connecting mechanism of the gantry crane according to claim 4, characterized in that, The first connecting hole, the second connecting hole and the third connecting hole of the same second connector (1) are arranged in a triangular pattern.

6. The plate hook connecting mechanism of the gantry crane according to claim 1, characterized in that, The upper surface of the connecting beam (2) and the lower surface of the crossbeam (10) are vertically spaced apart.

7. The plate hook connecting mechanism of the gantry crane according to claim 1, characterized in that, The upper end of the plate hook body (3) can be connected to the first connector (20), so that the horizontal distance between the two sets of plate hook bodies (3) is equal to the horizontal distance between the connection positions of the two sets of the first connectors (20).

8. The plate hook connecting mechanism of the gantry crane according to claim 1, characterized in that, The second connector (1) is detachably connected to the first connector (20).

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