Turnover hoisting structure for supporting leg girder door frame of tire crane

Abstract

The utility model relates to a turnover hoisting structure of a tire crane supporting leg girder door frame. A fixed lifting lug is arranged on the tire crane supporting leg girder door frame; the device is characterized by comprising a transition lifting lug, a connecting lifting plate, a pin shaft, a transition cushion cover and a locking nut, a transition lifting lug structure is arranged to be matched with a fixed lifting lug on a tire crane supporting leg girder door frame, and the transition lifting lug forms a structure with a dip angle and extends out of the side face of the fixed lifting lug on the tire crane supporting leg girder door frame; besides, a connecting lifting plate is arranged on the transition lifting lug in an extending manner, and the direction of a lifting hole of the connecting lifting plate is changed, so that the whole lifting structure is more universal, the stress direction is ensured to meet the requirement, and the height of a lifting stress point is increased by utilizing the structure of the transition lifting lug; therefore, the interference between the lifted steel wire rope and the girder platform or the drag chain channel steel can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of tire cranes, in particular to a tire crane outrigger beam door frame turning over hoisting structure. Background Art

[0002] During the assembly of the tire crane, when the outrigger beam door frame is turned over and hoisted, the hoisting wire rope will interfere with the beam platform or the drag chain channel steel, and the need for turning over and hoisting can only be met by temporarily cutting the drag chain channel steel or the platform railing; after the assembly, the construction workers also need to complete the butt welding, flaw detection and painting of the cut parts at high altitude, which results in a lot of production cost expenditure, many high-altitude operations and high safety risks; therefore, a new hoisting structure is needed to improve the original simple and rough cutting interference parts for turning over and hoisting, reduce production costs, reduce high-altitude operations, and ensure safe production. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a tire crane leg beam door frame turning over and hoisting structure, which can solve the problem that the turning over of the general tire crane leg beam door frame requires rough cutting of the interference parts for turning over and hoisting, which is high in cost, long in high-altitude operation time and high in risk.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a tire crane leg beam door frame turn-over hoisting structure, the tire crane leg beam door frame is provided with a fixed lifting lug; its innovation lies in: comprising a transition lifting lug, a connecting hanging plate, a pin shaft, a transition bushing and a locking nut;

[0005] The transition lifting ear has a pair of mutually parallel arrangements, and the transition lifting ear comprises a vertical ear hole section and an inclined straight plate section; a pin shaft hole is provided on the vertical ear hole section, and the inclined straight plate section is obliquely connected to the vertical ear hole section, and the angle between the center line of the inclined straight plate section and the axis of the pin shaft hole is 55°; outer reinforcing plates are vertically connected to the outer contours on both sides of the inclined straight plate section; a connecting notch extending to the end is obliquely arranged on the inclined straight plate section; the vertical ear hole sections on the transition lifting ear are respectively on both sides of the fixed lifting ear;

[0006] The connecting hanging plate is inserted into the connecting notches of the two inclined straight plate sections in an inclined shape and fixed by welding; a hanging hole is opened on the connecting hanging plate, and reinforcing orifice plates are arranged on both sides of the hanging hole on the connecting hanging plate to enhance the strength of the hanging hole on the connecting hanging plate;

[0007] The pin shaft passes through the pin shaft hole and the fixing lug on the vertical ear hole section in sequence, and the end of the pin shaft is fixed by a locking nut;

[0008] The transition sleeve is arranged in the fixed ear plate, and the transition sleeve cooperates with the pin shaft.

[0009] Furthermore, reinforcing pads are respectively provided on both side surfaces of the pin shaft hole, and the connection strength of the pin shaft hole on the vertical ear hole section is increased by the reinforcing pads.

[0010] The advantages of the utility model are:

[0011] 1) In the utility model, a transition lifting ear structure is provided to cooperate with the fixed lifting ear on the tire crane leg beam door frame, so that the transition lifting ear forms a structure with an angle, extending out of the side of the fixed lifting ear of the tire crane leg beam door frame; in addition, a connecting hanging plate is further extended on the transition lifting ear, and the direction of the lifting hole of the connecting hanging plate is changed, so that the entire lifting structure is more versatile, ensuring the composite requirements of the force direction, and the height of the lifting force point is increased by using the structure of the transition lifting ear; in this way, the interference between the lifting wire rope and the beam platform or the drag chain channel steel can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0013] Figure 1 The utility model is a schematic diagram of a tire crane outrigger beam door frame turning over and hoisting structure.

[0014] Figure 2 The utility model is a side view of a tire crane outrigger beam door frame turning over hoisting structure. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0016] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] like Figure 1 Figure 2 The tire crane leg beam door frame turning over hoisting structure shown in the figure has a fixed lifting lug 1 on the tire crane leg beam door frame; it includes a transition lifting lug 2, a connecting hanging plate 3, a pin 4, a transition cushion sleeve 5 and a locking nut 6.

[0018] The transition ear 2 has a pair of parallel arrangement, and the transition ear 2 includes a vertical ear hole section 21 and an inclined straight plate section 22; a pin hole is opened on the vertical ear hole section 21, and the inclined straight plate section 22 is obliquely connected to the vertical ear hole section 21, and the angle between the center line of the inclined straight plate section 22 and the axis of the pin hole is 55°; outer reinforcing plates are vertically connected to the outer contours on both sides of the inclined straight plate section 22; a connecting notch extending to the end is obliquely arranged on the inclined straight plate section 22; the vertical ear hole sections 21 on the transition ear 2 are respectively on both sides of the fixed ear 1.

[0019] The connecting hanger plate 3 is obliquely embedded in the connecting grooves of the two inclined straight plate sections 22 and welded and fixed; a hanging hole is opened on the connecting hanger plate 3, and reinforcing orifice plates are provided on both sides of the hanging hole on the connecting hanger plate 3 to enhance the strength of the hanging hole on the connecting hanger plate 3.

[0020] The pin shaft 4 passes through the pin shaft hole on the vertical ear hole section 21 and the fixing ear 1 in sequence, and the end of the pin shaft 4 is fixed by a locking nut 6 .

[0021] The transition sleeve 5 is arranged in the fixed ear plate, and the transition sleeve 5 cooperates with the pin shaft 4.

[0022] Reinforcement pads are respectively arranged on both sides of the pin shaft hole, and the connection strength of the pin shaft hole on the vertical ear hole section is increased by the reinforcement pads.

[0023] The working principle of the utility model is as follows: by setting a transition lifting ear structure to cooperate with the fixed lifting ear on the tire crane leg beam door frame, the transition lifting ear forms a structure with an angle, extending the side of the fixed lifting ear of the tire crane leg beam door frame; in addition, a connecting hanging plate is extended on the transition lifting ear, and by changing the direction of the lifting hole of the connecting hanging plate, the entire lifting structure is made more versatile, ensuring the composite requirements of the force direction, and utilizing the structure of the transition lifting ear to increase the height of the lifting force point; in this way, interference between the lifting wire rope and the beam platform or the drag chain channel steel can be avoided.

[0024] Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the description are only for explaining the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A tire crane outrigger beam door frame turning over hoisting structure, the tire crane outrigger beam door frame is provided with a fixed lifting lug; it is characterized by: It includes transition lifting lugs, connecting hanging plates, pins, transition bushings and locking nuts; The transition lifting ear has a pair of mutually parallel arrangements, and the transition lifting ear comprises a vertical ear hole section and an inclined straight plate section; a pin shaft hole is provided on the vertical ear hole section, and the inclined straight plate section is obliquely connected to the vertical ear hole section, and the angle between the center line of the inclined straight plate section and the axis of the pin shaft hole is 55°; outer reinforcing plates are vertically connected to the outer contours on both sides of the inclined straight plate section; a connecting notch extending to the end is obliquely arranged on the inclined straight plate section; the vertical ear hole sections on the transition lifting ear are respectively on both sides of the fixed lifting ear; The connecting hanging plate is inserted into the connecting notches of the two inclined straight plate sections in an inclined shape and fixed by welding; a hanging hole is opened on the connecting hanging plate, and reinforcing orifice plates are arranged on both sides of the hanging hole on the connecting hanging plate to enhance the strength of the hanging hole on the connecting hanging plate; The pin shaft passes through the pin shaft hole and the fixing lug on the vertical ear hole section in sequence, and the end of the pin shaft is fixed by a locking nut; The transition sleeve is arranged in the fixed ear plate, and the transition sleeve cooperates with the pin shaft.

2. The tire crane leg beam door frame turning hoisting structure according to claim 1 is characterized by: Reinforcement pads are respectively arranged on both sides of the pin shaft hole, and the connection strength of the pin shaft hole on the vertical ear hole section is increased by the reinforcement pads.

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