CN201209093Y - Crawler telescopic arm hoisting machine - Google Patents

Abstract

The utility model belongs to off-road mobile hoisting machinery and is a body of a caterpillar crane which is composed of a caterpillar travelling device, a revolving platform and a control room. The body of the caterpillar crane is provided with a box type telescopic crane jib assembly; the root part of a box type telescopic crane jib of the box type telescopic crane jib assembly is hinged on the revolving platform of the body of the caterpillar crane; and an upper hinging point of an amplitude changing oil cylinder is hinged with the central part of the box type telescopic crane jib and a lower hinging point of the amplitude changing oil cylinder is hinged with the revolving platform. The off-road mobile hoisting machinery not only has the characteristics of the full-road telescopic crane jib of no need of dismounting, flexible maneuverability and being capable of working on the occasion with high restriction, but also integrates the characteristics of the caterpillar crane of large hoisting quantity, smooth revolution, and being capable of travelling with load and working on the off-road occasion, and is crane machinery with high efficiency and excellent performance. The off-road mobile hoisting machinery can also be applied in specific occasions with limited height and no artificial road surface of construction in tunnel, building oil reserving tank from the inside to the outside, carrying out inner dismounting to the buildings and the like.

Description

The caterpillar telescopic boom crane

One, technical field

The utility model belongs to non-road surface movable crane tool, is specifically related to the box-type telescoping boom is installed on derivative new heavy-duty lifting machine on the body of crawler crane.

Two, background technology

At present, in building operation, if want below high-flying highway or in the tunnel or narrow plant area etc. carry out lifting operation, generally all be to adopt the construction of truss-like crawler crane.Because the truss-like crawler crane will adopt the truss arm of different configurations according to different job requirements, expense height such as dismounting, transportation, the time is long, and combined efficiency is lower, and the most of the time all has been used on the loading and unloading truss arm; If adopt all terrain crane or wheel crane, owing to do not have highway sometimes in the tunnel, and need make a jack during all terrain crane lifting, will make lifting become very dangerous if the soil is soft, even the possibility of overturning is arranged.

Three, summary of the invention

The purpose of this utility model provides the novel hoisting crane that a kind of body with crawler crane combines with the scalable arm of box-type and constitutes, be not subjected to restrictions such as road surface, execution conditions, can be flexibly, safe operation, overcome above shortcomings in the background technology.

The utility model is achieved in that this hoisting crane comprises running gear, turn table, hydraulic efficiency pressure system, control cabin and boom assembly; Hoisting mechanism and suspension hook that boom assembly is made up of arm, elevator and steel rope constitute; Be characterized in: this hoisting crane adopts is the body of the crawler crane that is made of track unit, turn table, control cabin, and box-type telescoping boom assembly is installed on the body of crawler crane; The root of the box-type telescoping boom of box-type telescoping boom assembly is hinged on the turn table of crawler crane body, and the last hinge of amplitude oil cylinder and the middle part of box-type telescoping boom are hinged, and hinge and turn table are hinged down for they.

The utility model is reasonable in design.Owing to adopted technique scheme, make the utility model both possessed All-terrain telescopic boom crane need dismounting, maneuverability, the characteristics that can under height-limited occasion, work, gathered again crawler crane hang that carrying capacity is big, revolution steadily, can be with carrying walking, and can being a kind of efficient, remarkable elevator machinery of performance in the characteristics of non-highway occasion work.The utility model also can be applicable in the tunnel construction, from inside to outside build the oil reserve jar, building is carried out inside, and to dismantle equal altitudes limited and do not have artificial ground-surface specific occasion again.

Four, description of drawings

Fig. 1 is a structural representation of the present utility model;

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

Fig. 3 is the A-A cutaway view among Fig. 1;

Fig. 4 is the B-B cutaway view among Fig. 2;

Fig. 5 is the structural representation of box-type telescopic boom of the present utility model.

Five, the specific embodiment

As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, this hoisting crane is box-type telescoping boom assembly to be installed constitute on the body of the crawler crane of being made up of track unit, turn table, control cabin.Track unit is made up of base 8 and track rail assembly 3; Base 8 is hung on left and right two track rail assemblys 3 by pin commentaries on classics 15, bearing pin 16.Turn table is supported by turntable 2 and revolution to be formed; Revolution is supported by inner ring 10 and external toothing 9 and reductor 11 and is formed.The inner ring 10 that the bottom of turntable 2 is supported by tie bolt group 17 and revolution is connected, and the external toothing 9 that revolution is supported is fixed on the base 8 by tie bolt group 18.Hoisting mechanism and suspension hook 14 that the box-type boom assembly is made up of box-type telescoping boom 1, elevator 12 and steel rope 13 constitute; Box-type telescoping boom 1 (see figure 5) is made up of telescopic boom basic arm 19, telescopic boom two joint arms 20, telescopic boom three joint arms 21 and first telescopic oil cylinder and second telescopic oil cylinder; The telescopic boom basic arm 19 of box typed structure, telescopic boom two joint arms 20 and telescopic boom three joint arms 21 are suit successively.The piston rod 22 of first telescopic oil cylinder is connected with telescopic boom basic arm 19, and the first telescopic oil cylinder cylinder barrel 23 is installed on the telescopic boom two joint arms 20; The second telescopic oil cylinder piston rod 24 is connected with telescopic boom two joint arms 20, and the second telescopic oil cylinder cylinder barrel 25 is installed on the telescopic boom three joint arms 21.When the first telescopic oil cylinder rodless cavity oil-feed, because its piston rod 22 is connected on the telescopic boom basic arm 19, its piston rod 22 is inactive, and to save arms 20 protruding so the first telescopic oil cylinder cylinder barrel 23 just can drive telescopic boom two.Second telescopic oil cylinder also is the rodless cavity oil-feed, and telescopic boom three joint arms 21 also stretch out with the same manner.Box-type telescoping boom 1 root (being exactly telescopic boom basic arm 19 roots specifically) by bearing pin 6 be articulated in crawler belt rise on the turntable 2 of turn table of machine body.The following hinge 7 of amplitude oil cylinder 4 is hinged with the turntable 2 of turn table, and hinge 5 is hinged with the middle part (being exactly the middle part of telescopic boom basic arm 19 specifically) of box-type telescopic boom 1 on it.

The effect of amplitude oil cylinder 4 is exactly that drive case formula telescoping boom rotates around dead axle, changes the distance (being work range) between telescoping boom head suspension hook 14 and this crane rotation line of centers, to realize the variation on the operational space.The quantity of amplitude oil cylinder should in the present embodiment be 1 according to the rated load different mining of hoisting crane with 1 or 2.

During work, the hydraulic efficiency pressure system of this hoisting crane is given first telescopic oil cylinder of box-type arm 1, the rodless cavity fuel feeding of second telescopic oil cylinder to the utility model in lifting, the distance that box-type arm 1 can be stretched out according to sling height adjustment.Winch 12 drives steel rope 13 and suspension hook 14 motions simultaneously, weight 26 can be sling.When if work range need reduce, hydraulic efficiency pressure system is given amplitude oil cylinder 4 rodless cavity fuel feeding, makes the rod chamber oil return, the amplitude oil cylinder piston rod stretches out, the box-type telescopic boom hangs 1 and clockwise rotates around bearing pin 6, and at this moment the box-type telescopic boom hangs 1 and slowly hoists, and work range reduces.Otherwise, if the oil-feed of amplitude oil cylinder rod chamber, the rodless cavity oil return, the withdrawal of oil cylinder piston bar, the box-type telescopic boom rotates counterclockwise around bearing pin 6, and the box-type telescoping boom is slowly descended, and work range just increases.

Claims (1)

1, a kind of caterpillar telescopic boom crane comprises running gear, turn table, hydraulic efficiency pressure system, control cabin and boom assembly; Hoisting mechanism and suspension hook that boom assembly is made up of arm, elevator (12) and steel rope (13) constitute; It is characterized in that: this hoisting crane adopts is the body of the crawler crane that is made of track unit, turn table, control cabin, and box-type telescoping boom assembly is installed on the body of crawler crane; The root of the box-type telescoping boom (1) of box-type telescoping boom assembly is hinged on the turn table of crawler crane body, the last hinge (5) of amplitude oil cylinder (4) is hinged with the middle part of box telescoping boom (1), and hinge (7) is hinged with turn table down for it.

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