CN203112378U

CN203112378U - Introduction device of tower crane standard knot

Info

Publication number: CN203112378U
Application number: CN2012207333473U
Authority: CN
Inventors: ***; 王厚贞; 史先岗; 周生玉; 刘尊正; 褚沛; 单立; 王科伟
Original assignee: Xuzhou Construction Machinery Group Co Ltd XCMG
Current assignee: Xuzhou Construction Machinery Group Co Ltd XCMG
Priority date: 2012-12-27
Filing date: 2012-12-27
Publication date: 2013-08-07
Anticipated expiration: 2022-12-27

Abstract

The utility model discloses an introduction device of a tower crane standard knot, belonging to the technical field of engineering machinery. The introduction device comprises an introduction trolley and four single-leg chain hooks, wherein the single-leg chain hooks are fixed on the introduction trolley through pin shafts and split pins. The introduction device has the beneficial effects that the standard knot can be quickly introduced by using the structure of the single-leg chain hooks, the actual operation is simple and practical; and as the form of four single-leg chain hooks is used, the structure is symmetrical, high stability and high reliability are provided, and unsafe factors are eliminated.

Description

The imported unit of column crane mast section

Technical field

The utility model relates to a kind of imported unit, specifically is a kind of imported unit of column crane mast section, belongs to technical field of engineering machinery.

Background technology

Tower crane is building engineering operation crane hoisting equipment commonly used, raising day by day along with technical merit, tower crane such as build, ship, field such as logistics, the energy, become indispensable heavy duty equipment, and in the tower crane accessory, standard knot is main bearing member, also is the vital parts of rising tower crane.

At present, standard knot is introduced between undersetting and the body of the tower by introducing dolly, thereby realizes the supernumerary segment of tower crane.It is more to introduce dolly connecting rod and standard knot connection mode, traditional method is to utilize connecting rod one end bearing pin to be connected with dolly, the other end is connected with standard knot by bolt, this mode can be wasted the more time when the lifting standard knot, and hole at the straight web member of standard knot, also increase the complexity of technology, also have potential safety hazard simultaneously.In order better to address the above problem, need a kind of novel introduction standard knot device of design.

The utility model content

At the problem that above-mentioned prior art exists, the utility model provides a kind of imported unit of column crane mast section, can introduce standard knot efficiently and easily, eliminates some potential safety hazards simultaneously.

To achieve these goals, the technical solution adopted in the utility model is: a kind of imported unit of column crane mast section comprises and introduces dolly and single leg chain suspension hook that described single leg chain suspension hook is fixed on by bearing pin and spring cotter and introduces on the dolly.

Further, single leg chain suspension hook is four.

Principle of work: with bearing pin and spring cotter with single leg chain suspension hook be fixed on introduce get off on, after single leg chain suspension hook being walked around the horizontal web member of the superiors of standard knot, the introduction dolly that the lifting suspension hook will install standard knot rises to the height of introducing crossbeam, rotating tower crane aligns introduction dolly and introduction crossbeam, the introduction dolly that descends makes its roller just in time fall into the both sides of introducing crossbeam, continue the decline suspension hook, make standard knot enter body of the tower.

Beneficial effect is: adopt the structure of single leg chain hook can introduce standard knot fast, and reality is simple to operate, also very practical.Adopt its symmetrical configuration of form of 4 single leg chain hooks, have advantages of higher stability and reliability, eliminate some safety hazard.

Description of drawings

Fig. 1 is the scheme drawing of the utility model mode of operation;

Fig. 2 is the birds-eye view of Fig. 1;

Fig. 3 is structural representation of the present utility model;

Fig. 4 is the birds-eye view of Fig. 3.

Among the figure: 1, introduce crossbeam, 2, introduce dolly, 3, single leg chain suspension hook; 4, bearing pin, 5, spring cotter, 6, standard knot.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

To shown in Figure 4, a kind of imported unit of column crane mast section comprises and introduces dolly 2 and single leg chain suspension hook 3 that single leg chain suspension hook 3 is fixed on by bearing pin 4 and spring cotter 5 and introduces on the dolly 2 as Fig. 2; Single leg chain suspension hook 3 can be four.

As shown in Figure 1, introduce dolly 2 with slinging on the suspension hook, note making single leg chain suspension hook 3 openings to introduce the direction of dolly 2 welding baffle plates dorsad when hanging introduction dolly 2, the benefit of doing like this is to introduce dolly 2 to hang easy decoupling device after introducing on the crossbeam 1.Dolly 2 be will introduce and standard knot 6 tops and decline moved to, the horizontal web member of last layer of four single leg chain suspension hooks 3 make introducing dolly 2 and standard knot 6 holding position of hanging oneself aligns, at this moment with bearing pin 4 and spring cotter 5 single leg chain suspension hook 3 is fixed on and introduces on following 2, simultaneously single leg chain suspension hook 3 is walked around on the horizontal web member of the superiors of standard knot 6.Just single leg chain suspension hook 3 is hung according to position shown in Figure 1, guaranteed safety, be also noted that simultaneously the direction of introducing dolly 2 should be to introduce dolly 2 to have baffle plate one side to be welded with the side that jacking is marked time near standard knot 6.

Next step, the introduction dolly 2 that the lifting suspension hook will install standard knot 6 rises to the height of introducing crossbeam 1, rotating tower crane aligns introduction dolly 2 and introduction crossbeam 1, the introduction dolly 2 that descends makes its roller just in time fall into the both sides of introducing crossbeam 1, continue the decline suspension hook, make standard knot 6 enter body of the tower.

Claims

1. the imported unit of a column crane mast section is characterized in that, comprises introducing dolly (2) and single leg chain suspension hook (3), and described single leg chain suspension hook (3) is fixed on by bearing pin (4) and spring cotter (5) and introduces on the dolly (2).

2. the imported unit of a kind of column crane mast section according to claim 1 is characterized in that, described single leg chain suspension hook (3) is four.