CN201785153U

CN201785153U - Crawler crane supporting box

Info

Publication number: CN201785153U
Application number: CN2010205121724U
Authority: CN
Inventors: 所玉敏
Original assignee: China First Metallurgical Group Co Ltd
Current assignee: China First Metallurgical Group Co Ltd
Priority date: 2010-08-31
Filing date: 2010-08-31
Publication date: 2011-04-06
Anticipated expiration: 2020-08-31

Abstract

The utility model relates to the field of engineering machinery, in particular to a crawler crane supporting box, which comprises a joist steel frame. Longitudinal joist steel supports are evenly welded inside the joist steel frame along the longitudinal direction, transverse joist steel supports are evenly connected between each two adjacent longitudinal joist steel supports, transverse flanges and web plates among the longitudinal joist steel supports and the transverse joist steel supports are respectively and sufficiently welded, a top plate and a bottom plate are respectively welded on the top and at the bottom of the joist steel frame, and suspension lugs are connected to lateral plates of the joist steel frame. The crawler crane supporting box in use reduces pressure of a crawler crane on a foundation so as to guarantee construction safety of the crane, the longitudinal supports and the transverse supports inside the joist steel frame divide an internal space into small sashes to lead the connection of the top plate and the bottom plate to be firmer and supporting to be more reliable, the dead weight of the crane and the influence of hoisting of a weight on the foundation are taken into sufficient consideration of distribution of the supporting, and the crawler crane supporting box provided with the suspension lugs avoids a special clamp and guarantees safety use of the crane.

Description

Crawler crane props up protecting box

Technical field

The utility model relates to engineering machinery field, relates in particular to an a kind of protecting box that is used to ensure the crawler crane construction safety.

Background technology

Lift in this high risk job that requires special skills at main equipment, ground is one of key factor of influence lifting safety, and the needs that can foundation capability reach actual lifting are directly determining the success or failure of lifting, is concerning the safety of personal and equipment.

Crawler crane is heavy duty crane especially, and especially equipment self-weight is bigger, during use ground is had high requirement.1250t level crawler crane for example, equipment self-weight reaches more than 1250 ton, belongs to large equipment, and this kind equipment should be handled crane walking ground by the requirement of equipment hoisting to earth bearing strength before lifting.Except ground is carried out the intensive treatment, for alleviating the crane crawler belt, also must under crawler belt, lay suitable device during use to ground-surface pressure, satisfy lifting requirements to guarantee foundation capability.

Summary of the invention

At the problems referred to above, the purpose of this utility model is to provide a kind of support strength height, crawler crane simple and practical, safe in utilization to prop up protecting box.

For achieving the above object, the scheme that the utility model adopts is: a kind of crawler crane props up protecting box, its difference is: it includes I-beam section framework, vertically I-beam section support, laterally I-beam section support, top board, base plate and hanger, the evenly vertical I-beam section support of welding of length direction in the I-beam section framework, evenly connect horizontal I-beam section between adjacent two vertical I-beam sections support and support, support between the horizontal edge of a wing, between the web with horizontal I-beam section between vertically I-beam section supports and fully weld; The top of I-beam section framework and bottom be welding top plate and base plate respectively, and the side plate of I-beam section framework is connected with hanger.

Cutting flat key shape stuff up a crack supports the edge of a wing with vertical I-beam section and carries out plug welding on the described top board.

Described hanger number is 4 solid drawn pipe hangers, and evenly penetration is welded on both sides.

The radical that described vertical I-beam section supports is 6, laterally the radical that supports of I-beam section is 13, vertically I-beam section support and laterally I-beam section support the I-beam section framework is divided into 98 sashes.

Use of the present utility model has reduced the pressure of crawler crane to ground, thereby has ensured the hoisting crane construction safety; The inner girth that adopts of I-beam section framework is divided into little sash with the inner space, make being connected of top board and base plate more firm, support more reliable, when hoisting crane own wt and hoisting heavy have been considered in the distribution of supporting to the influence of ground, prop up protecting box and be provided with hanger, do not need unit clamp, guarantee that crane safety uses.

Description of drawings

Fig. 1 is the schematic top plan view of the utility model embodiment;

Fig. 2 is the front elevational schematic of the utility model embodiment;

Fig. 3 is the enlarged drawing at A place among Fig. 2;

Fig. 4 is the enlarged drawing at B place among Fig. 2;

Among the figure: 1-I-beam section framework, the vertical I-beam section of 2-supports, and the horizontal I-beam section of 3-supports 4-stuff up a crack, 5-hanger, 6-top board, 7-base plate.

The specific embodiment

For understanding the utility model better, below in conjunction with the drawings and specific embodiments the technical solution of the utility model is described further, referring to Fig. 1 to Fig. 4:

The crawler crane of implementing by the utility model props up protecting box, it includes I-beam section framework 1, it is 30c that I-beam section framework 1 adopts specification, the I-beam section of material Q235B, by the design size cutting stock, assembly unit is welded into a rectangular framework, for guaranteeing that a protecting box has the support of sufficient intensity to the crawler crane car body, with girth I-beam section framework 1 inside is divided into little sash, the concrete size of I-beam section framework 1 and the number of little sash are decided on the crawler crane deadweight of supporting, present embodiment props up protecting box and is used for 1250 tonnes of crawler cranes of supporting, I-beam section framework 1 is designed to 6000 * 3000mm, evenly 6 vertical I-beam sections supports 2 of welding of length direction in the I-beam section framework 1, framework is divided into 7 little rectangular frames, every adjacent two vertical I-beam sections support 2 and evenly connect 13 horizontal I-beam sections supports 3, thereby whole framework is divided into 98 little sashes, vertically between the edge of a wing of 2 of I-beam section supports and laterally I-beam section support 3, fully welding between the web is to guarantee weld strength.

Top board 6 and base plate 7 are formed on the top of I-beam section framework 1 and bottom welding steel respectively, for making base plate 7 steel plates with full contact between the framework, hoisting crane walking back steel plate does not have distortion, base plate 7 leaves enough weld seams all around when welding with framework, fully weld, simultaneously the I-beam section edge of a wing of 98 small frames is fully welded with steel plate.Equally for the steel plate that makes top board 6 with full contact between the framework, hoisting crane walking back steel plate does not have distortion, top board 6 leaves enough weld seams when welding around the framework, fully welds.The centre portion of top board 6 adopts stuff up a crack 4 welding with the framework contact portion, and the stuff up a crack 4 on the steel plate is shaped as A type flat key shape, and stuff up a crack 4 positions are vertical I-beam section and horizontal I-beam section docking location.Stuff up a crack 4 is filled welding, and filling welding must be full, and weldering meat is higher than the plate face, polishes the surface with polishing lathe then.

For ease of moving, be welded with hanger 5 in the outside of I-beam section framework 1, hanger 5 is welded on two I-beam sections in the length direction outside by the solid drawn pipe penetration, and the solid drawn pipe specification is Φ 83, material 20.Employing penetration welding between two I-beam sections is in order to bear the weight of monoblock device.The number of hanger 5 is 4, two of every sides, rectangular distribution.

Above disclosed only is preferred embodiment of the present utility model, can not limit the interest field of the utility model certainly with this, and therefore the equivalence of being done according to the utility model claim changes, and still belongs to protection domain of the present utility model.

Claims

1. a crawler crane props up protecting box, it is characterized in that: include I-beam section framework (1), vertically I-beam section support (2), horizontal I-beam section support (3), top board (6), base plate (7) and hanger (5), the interior length direction of I-beam section framework (1) the evenly vertical I-beam section of welding supports (2), adjacent two vertical I-beam sections support and evenly connect horizontal I-beam section between (2) and support (3), and vertically I-beam section supports between (2) with horizontal I-beam section and supports between (3) horizontal edge of a wing, fully welds between the web; The top of I-beam section framework (1) and bottom be welding top plate (6) and base plate (7) respectively, and the side plate of I-beam section framework (1) is connected with hanger (5).

2. crawler crane according to claim 1 props up protecting box, it is characterized in that: described top board (6) is gone up cutting flat key shape stuff up a crack (4), supports (2) edge of a wing with vertical I-beam section and carries out plug welding.

3. crawler crane according to claim 1 props up protecting box, it is characterized in that: described hanger (5) number is 4 solid drawn pipe hangers (5), and evenly penetration is welded on both sides.

4. crawler crane according to claim 1 props up protecting box, it is characterized in that: the radical that described vertical I-beam section supports (2) is 6, laterally the I-beam section radical that supports (3) is 13, vertically I-beam section support (2) and laterally I-beam section support (3) I-beam section framework (1) is divided into 98 sashes.