Light anti-swing rigid guide pillar structure

Abstract

The invention discloses a light anti-swing rigid guide pillar structure which comprises an upper connecting base, a scissor fork structure and a lower connecting base. The shear fork structure comprises a plurality of shear fork arm groups which are hinged in sequence; two connecting ends of the upper and lower parts of the shear fork arm groups are correspondingly hinged with the upper connecting seat and the lower connecting seat through connecting plates respectively; the upper connecting seat and the lower connecting seat are respectively connected with a crane trolley and a lifting appliance, and the lower part of the upper connecting seat and the upper part of the lower connecting seat are respectively provided with a lug seat correspondingly hinged with the end part of the connecting plate. Synchronous opening, closing and stretching functions with a normal structure can be achieved, it can be guaranteed that the gravity center of the guide column does not change and coincides with the gravity center of a lower load of the lifting appliance all the time, structural stability and rigidity are improved, stability and positioning precision in the lifting process are improved, lifting appliance swinging is effectively restrained, and the lifting appliance is suitable for occasions with large lifting heights and good in actual using effect.

Description

Technical Field

[0001] This invention relates to the field of crane technology, specifically to a lightweight anti-sway rigid guide column structure. Background Technology

[0002] In some applications of cranes, such as equipment installation and positioning, it is necessary to reduce crane swaying during operation and improve operational efficiency and safety. Rigid guide columns are typically used. Conventional rigid guide column designs employ multi-stage box-type or square sleeve structures, resulting in complex structures. Due to the significant inertia of the guide column itself, especially with large lifting heights, the guide column becomes even larger and heavier, increasing the complexity of the lifting mechanism and making it highly uneconomical. Currently, telescopic scissor lift assemblies are used as guide columns. Conventional scissor lift assemblies connect their upper or lower parts to a connecting seat, requiring one end to be fixed while the other end can move left and right, as shown in the attached diagram. Figure 5 As shown, the upper and lower points on the left are fixed, while the upper and lower points on the right are made of rollers. However, this structure will cause the overall center of gravity of the scissor lift structure to shift during the lifting process. The center of gravity of the scissor lift structure and the load center of gravity of the lifting device will not be concentric, which will greatly reduce the rigidity of the guide column. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a lightweight anti-sway rigid guide column structure, which improves the structural stability and rigidity, effectively suppresses the swing of the lifting device, is suitable for large lifting height occasions, and has good practical performance, and can effectively solve the problems in the background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a lightweight anti-sway rigid guide column structure, comprising an upper connecting seat, a scissor structure, and a lower connecting seat; The scissor lift structure includes several scissor lift arm assemblies that are hinged together in sequence. The two connecting ends of the upper and lower parts of the scissor lift arm assembly are respectively hinged to the upper connecting seat and the lower connecting seat through connecting plates. The upper connecting seat and the lower connecting seat are respectively connected to the crane trolley and the lifting device. The lower part of the upper connecting seat and the upper part of the lower connecting seat are provided with lugs that are hinged to the ends of the connecting plates. The two connecting plates at the top of the scissor arm assembly and the two connecting plates at the bottom of the scissor arm assembly are arranged in an X-shape. One end of the connecting plate is hinged to one of the connecting ends of the scissor arm assembly, and the other end of the connecting plate is hinged to the lug of the upper or lower connecting seat.

[0005] Preferably, the scissor arm assembly includes two cross-arranged connecting arms, which are connected by a pin, and each connecting arm has a pin hole in the middle of its body that matches the pin.

[0006] Preferably, four sets of scissor structures are provided between the upper connecting seat and the lower connecting seat in a rectangular arrangement, with the four sets of scissor structures arranged symmetrically in pairs.

[0007] Preferably, the four groups of scissor arms of the scissor structure are connected by a plurality of cross fixing rods, four fixing ends of the cross fixing rods are connected with the pin shafts of the groups of scissor arms correspondingly, and the two cross fixing rods adjacent to each other are movably sleeved in the central region.

[0008] Also provided is a rigid crane against swinging, comprising the light rigid guide column structure against swinging according to any one of the above.

[0009] Compared with the prior art, the beneficial effects of the present application are as follows: by arranging the scissor structure composed of four groups of scissor arms between the upper connecting seat and the lower connecting seat, and by adopting the cross-hinged connecting plate matched with the lug seat, the rigid guide constraint is formed, which can achieve the synchronous opening and closing and telescopic function of the normal structure, can ensure that the gravity center of the guide column does not change, and is always coincided with the gravity center of the load of the lifting device, improves the structural stability and rigidity, improves the stability and positioning accuracy in the lifting process, effectively suppresses the swinging of the lifting device, and in addition, the four groups of scissor arms are connected by the cross fixing rods, and the upper and lower cross fixing rods are movably sleeved, so that the structural strength of the four groups of scissor arms is increased, which is suitable for large lifting height occasions, and has good actual use effect. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 is a schematic diagram of the extended state of the present application; Figure 2 is a schematic diagram of the local enlarged structure of the present application; Figure 3 is a schematic diagram of the arrangement of the scissor structure of the present application; Figure 4 is a schematic diagram of the contracted state of the present application; Figure 5 is a schematic diagram of the traditional scissor structure.

[0011] In the figure: 1 upper connecting seat, 2 scissor structure, 2.1 group of scissor arms, 2.2 connecting plate, 3 lower connecting seat, 4 cross fixing rod. DETAILED DESCRIPTION

[0012] The present application can be explained in detail by the following examples, and the purpose of the present application is to protect all technical improvements within the scope of the present application. In the description of the present application, it should be understood that the orientations or positional relationships indicated by terms such as "upper", "lower", "front", "rear", "left", "right" and the like only correspond to the drawings of the present application, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation.

[0013] Please refer to Figures 1-5 The present application provides the following technical solutions: Example 1: A light rigid guide column structure against swinging, comprising an upper connecting seat 1, a scissor structure 2 and a lower connecting seat 3. The scissor structure 2 comprises a plurality of sequentially hinged scissor arm groups 2.1, both ends of each scissor arm group 2.1 are hingedly connected to the upper connecting seat 1 and the lower connecting seat 3 through the connecting plates 2.2; The upper connecting seat 1 and the lower connecting seat 3 are connected to the trolley and the lifting tool respectively, and the lower part of the upper connecting seat 1 and the upper part of the lower connecting seat 3 are respectively provided with an ear seat hingedly connected to the end of the connecting plate 2.2; Further, the two connecting plates 2.2 at the upper part of the scissor arm group 2.1 and the two connecting plates 2.2 at the lower part of the scissor arm group 2.1 are arranged in an X shape, one end of the connecting plate 2.2 is hingedly connected to one end of the scissor arm group 2.1, and the other end of the connecting plate 2.2 is hingedly connected to the ear seat of the upper connecting seat 1 or the lower connecting seat 3; Specifically, the scissor arm group 2.1 comprises two cross-connected arms, the two arms are connected by a pin shaft, and the middle part of the arm body of each arm is provided with a pin hole matched with the pin shaft; It should be noted that by adopting the above designed scissor structure 2, i.e. the four lifting points at the upper and lower parts of the scissor structure 2 are fixed points, in order to ensure the synchronous operation of the entire linkage mechanism, the first intermediate hinge shaft at the upper and lower parts is removed, i.e. the two connecting plates 2.2 are not connected by a pin shaft in the middle, which is equivalent to no constraint, so as to achieve the synchronous opening and closing, stretching and contracting functions of the normal structure, and ensure that the gravity center of the guide column does not change, and always coincides with the gravity center of the load of the lifting tool, thereby improving the stability, rigidity and strength of the structure, and improving the stability and positioning accuracy during hoisting, and effectively inhibiting the swinging of the lifting tool; In addition, four groups of scissor structures 2 are arranged in a rectangular distribution between the upper connecting seat 1 and the lower connecting seat 3, the four groups of scissor structures 2 are symmetrically arranged in pairs, the four groups of scissor structures 2 form a rigid structure with the upper connecting seat 1 and the lower connecting seat 3, and play a rigid role, so as to simultaneously constrain the displacement in the front-rear and left-right two horizontal directions, realize omnidirectional anti-shaking control in three-dimensional space, avoid the problems of partial load or torsion caused by single direction anti-shaking, and enhance the overall stability of the system; It should be noted that the scissor arm groups 2.1 of the four groups of scissor structures 2 are connected by a plurality of cross fixed rods 4, the four fixed ends of the cross fixed rod 4 are respectively connected to the pin shafts of the scissor arm groups 2.1, in the four groups of scissor structures 2 arranged in a rectangular distribution, i.e. parallel to the plane of the upper connecting seat 1 and the lower connecting seat 3, the intermediate pin shafts of adjacent four groups of scissor structures 2 are connected by the cross fixed rod 4, so as to improve the overall structural rigidity and torsion resistance; in addition, the two adjacent cross fixed rods 4 in the upper and lower parts are movably sleeved in the central region, so as to ensure that the four groups of scissor structures 2 are kept synchronous during lifting, make the four groups of scissor structures 2 jointly bear the load, avoid local overload, ensure that the upper connecting seat 1 and the lower connecting seat 3 are always kept parallel, and improve the hoisting accuracy.

[0014] Embodiment 2: The present application also provides a rigid anti-sway crane, comprising the light-weight anti-sway rigid guide column structure in embodiment 1.

[0015] The parts of the application not described in detail are part of the state of the art, and it is obvious to a person skilled in the art that the application is not limited to the details of the above-described exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the application; therefore, the embodiments should be considered in any respect as exemplary and non-limiting, and are intended to encompass all variations falling within the meaning and range of equivalency of the essential requirements.

Claims

1. A lightweight anti-sway rigid guide column structure, characterized in that: It includes an upper connecting seat (1), a scissor structure (2), and a lower connecting seat (3); The scissor structure (2) includes several scissor arm assemblies (2.1) that are hinged together in sequence. The two connecting ends of the upper and lower parts of the scissor arm assembly (2.1) are respectively hinged to the upper connecting seat (1) and the lower connecting seat (3) through the connecting plate (2.2). The upper connecting seat (1) and the lower connecting seat (3) are respectively connected to the crane trolley and the lifting device. The lower part of the upper connecting seat (1) and the upper part of the lower connecting seat (3) are provided with ear seats that are hinged to the end of the connecting plate (2.2). The two connecting plates (2.2) on the upper part of the scissor arm assembly (2.1) and the two connecting plates (2.2) on the lower part of the scissor arm assembly (2.1) are arranged in an X-shape. One end of the connecting plate (2.2) is hinged to one of the connecting ends of the scissor arm assembly (2.1), and the other end of the connecting plate (2.2) is hinged to the ear seat of the upper connecting seat (1) or the lower connecting seat (3).

2. The lightweight anti-sway rigid guide column structure according to claim 1, characterized in that: The scissor arm assembly (2.1) includes two cross-arranged connecting arms, which are connected by a pin. Each connecting arm has a pin hole in the middle of its body that is compatible with the pin.

3. The lightweight anti-sway rigid guide column structure according to claim 2, characterized in that: Four sets of scissor structures (2) are arranged in a rectangular pattern between the upper connecting seat (1) and the lower connecting seat (3), and the four sets of scissor structures (2) are arranged symmetrically in pairs.

4. The lightweight anti-sway rigid guide column structure according to claim 3, characterized in that: The scissor arm assembly (2.1) of the four scissor structures (2) is connected by several cross fixing rods (4). The four fixed ends of the cross fixing rods (4) are respectively connected to the pins of the scissor arm assembly (2.1). The two adjacent cross fixing rods (4) are movably connected in the central area.

5. A rigid anti-sway crane, characterized in that, The lightweight anti-sway rigid guide column structure includes any one of claims 1-4.

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