CN2261415Y

CN2261415Y - Two-purpose tower with folding arm for lifting and distributing materials

Info

Publication number: CN2261415Y
Application number: CN 96234382
Authority: CN
Inventors: 孙在鲁
Original assignee: CHANGSHA CONSTRUCTION MACHINERY INST MINISTRY OF CONSTRUCTIONS
Current assignee: Changsha Zoomlion Heavy Industry Science and Technology Development Co Ltd
Priority date: 1996-03-13
Filing date: 1996-03-13
Publication date: 1997-09-03
Anticipated expiration: 2006-03-13

Abstract

The utility model relates to a two-purpose tower machine with folding arm for lifting and distributing materials, which belongs to the field of engineering building machinery; a trolley arm frame of the utility model is formed by hinging four arm frame sections [3], [4], [7], [10]through a lower chord, and a pulley group [2], a folding mechanism [5], a folding oil cylinder [9], a safety pull plate [14], a pull plate A [6] and a pull plate B [8] are respectively arranged on each arm frame section or between two arm frame sections; a plate lifting winding engine [1], etc., can make the trolley arm frame position in a horizontal position or form various folding states, two functions of lifting and concrete cloth are provided, and the utility model has the advantages of agile action, convenient operation, reasonable design, safety and simple structure.

Description

The double-duty tower machine of folding-jib lifting cloth

The utility model is that a kind of jib can be rolled over, and both can be used for lifting, can be used for the double-duty tower machine of the cloth of pump concrete again, belongs to the construction machine field.

Along with the progress of building construction technology, the shared proportion of pump concrete is increasing, but concrete cloth needs manpower to move cloth tube more, and both time-consuming, labor content is big again; Adopt the concrete placing boom cloth, but it can not lifting and climbs, so degree of utilization is not high.

The purpose of this utility model is at above-mentioned deficiency, adopts folding dolly jib, lifting and two kinds of functions of cloth can be combined, and when promptly lifting weight such as template, reinforcing bar, can work as the hoist tower machine and use; When cast concrete, can make concrete placing boom again and use.Lifting is turned back, and nimbly and freely, thereby has improved usage ratio of equipment greatly, and manpower and investment are saved in the convenient construction operation.

The utility model adopts following proposal to realize:

The dolly jib is formed by the hinged of lower boom by four jib joints;

On first and second jibs joint, pull bar is housed respectively, between is equipped with strut, has reached the plate winch by assembly pulley, can control upwarping angle or keeping level attitude of second jib joint, the insurance arm-tie also is equipped with in the assembly pulley both sides, and the insurance arm-tie is made up of two batten chains.

Be equipped with between second and second jib joint and unfold mechanism and arm-tie, arm-tie can bear pulling force or relieving, fold mechanism then can make between the 3rd and second jib by telescopic oil cylinder and be multiple angle.

Between third and fourth jib joint arm-tie and telescopic oil cylinder are housed side by side, the former can bear pulling force or relieving, and the latter then can make between the 4th and the 3rd jib joint and be multiple angle.

As follows below in conjunction with the Brief Description Of Drawings working process:

Scheme drawing when Fig. 1 is the utility model lifting operating mode.[1] has been the plate winch among the figure, and [2] are assembly pulley, and [3] are first jib joint, [4] be second jib joint, [5] are fold mechanism, and [6] are arm-tie A, [7] be the 3rd jib joint, [8] are arm-tie B, and [9] are the 4th jib joint for folding oil cylinder [10], [11] be the concrete distributing pipe, [12] are pull bar A, and [13] are strut, [14] be the insurance arm-tie, [15] are pull bar B, and [16] are crane carriage, [17] be body of the tower, [18] are the tower cap, and [19] are equilibrium arm.

Fig. 2 is the utility model concrete distributing operating mode scheme drawing,

Fig. 3 is fold mechanism [a 5] work scheme drawing.[5.1] are telescopic oil cylinder among the figure, and [5.2] are connecting rod A, and [5.3] are connecting rod B, connecting rod A[5.2] and connecting rod B[5.3] an end all and an end of telescopic oil cylinder [5.1] hinged, the other end then respectively with arm-tie A[6] two annexes [6.2] and [6.3] hinged.

Fig. 4 and Fig. 5 are two views of assembly pulley [2] and insurance arm-tie [14].

(see figure 1) has reached plate winch [1] maintenance second jib joint [4] in level attitude by assembly pulley [2] when the utility model is in the lifting operating mode, at this moment, pull bar A[12], strut [13] is all stressed, particularly insure arm-tie [14], insurance position plate [14] is made up of two batten chains, is contained in the both sides of assembly pulley [2] respectively, when second jib saves [4] when being horizontal, insurance arm-tie [14] is stressed, guarantees that second jib saves [4] and keeps horizontality and unlikely having a down dip.In addition, arm-tie A[6] stressed.The 3rd jib joint [7] and the axis of second jib joint [4] are remained on the horizontal linear.Arm-tie B[8] stressed, the axis of the 4th jib joint [10] and the 3rd jib joint [7] is remained on the horizontal linear.Like this, second jib joint [4], the 3rd jib joint [7], the 4th jib joint [10] and first jib joint [3] all remain on the horizontal linear, because first jib joint [3] is that hoisting operation or cloth operation are all by pull bar B[15] remain on level attitude, like this, crane carriage [16] can normally be walked along track, carries out hoisting operation.

When the utility model carries out the concrete distributing operation, having reached plate winch [1] by assembly pulley [2] can make second jib joint [4] upwarp an angle, at this moment, pull bar A[12], strut [13] is still stressed, but insurance arm-tie [14] is no longer stressed, sagging naturally by the insurance arm-tie [14] that two batten chains are formed, certainly, first jib saves still by pull bar B[15] remain on level attitude; In addition, unclamp arm-tie A[6 between second jib joint [4] and the 3rd jib joint [7]] and arm-tie annex [6.2] is hinged, elongation telescopic oil cylinder [5.1], (see figure 3) is connecting rod A[5.2 then] and connecting rod B[5.3] will move to position shown in the long and two-short dash line among Fig. 3 respectively, be a straight line at last, then telescopic oil cylinder [5.1] no longer stretches out, and at this moment, the 3rd jib joint has constituted an acute angle with second jib joint [2]; Equally, unclamp the arm-tie B[8 between the 3rd jib joint [7] and the 4th jib joint [10]], the folding oil cylinder [9] of elongation, then the 4th jib joint [10] and the 3rd jib joint [7] can form multiple obtuse angle.So the concrete distributing pipe [11] that is arranged in the dolly jib is also tortuous along with folding of dolly jib, can realize the concrete distributing of different radii (that is far and near) scope.

The utility model utilizes the hinged of lower boom and is contained in the fold mechanism of top boom, can keep the trolley type jib or be horizontal, perhaps be in folded state, have lifting, two kinds of functions of cloth, and insurance arm-tie etc. is housed, be reasonable in design, safe and reliable, structure is also uncomplicated, is convenient to implement.

Claims

1. a folding-jib lifting cloth double-duty tower machine belongs to the construction machine field, comprises body of the tower [17], tower cap [18], equilibrium arm [19], crane carriage [16], and feature of the present utility model is:

I) the dolly jib saves [3], second jib joint [4], the 3rd jib joint [7], the 4th jib joint [10] by first jib and forms by lower boom is hinged;

Ii) first jib joint [3] has pull bar A[15];

Iii) second jib joint [4] has pull bar B[12], interrelate by an assembly pulley [2] and a plate winch [1];

Ix) between first jib joint [3] and second jib joint [4], tappet [13] is arranged;

X) between second arm joint [4] and the 3rd jib [7], arm-tie A[6 is housed side by side] and fold mechanism [5],

Xi) between the 3rd jib joint [7] and the 4th jib joint [10], arm-tie B[8 is housed side by side] and folding oil cylinder [9],

Xii) concrete distributing pipe [11] runs through first jib joint [3], second jib joint [4], the 3rd jib joint [7] and the 4th jib joint [10], is flat in the dolly jib.

2. by the described double-duty tower machine of claim 1, it is characterized in that the insurance arm-tie of being made up of two batten chains [14] is equipped with in the both sides of assembly pulley [2].

3. by the described double-duty tower machine of claim 2, it is characterized in that having the folding mechanism [5] of a cover, it is by telescopic oil cylinder [5.1], connecting rod A[5.2] and connecting rod B[5.3] form, one end of telescopic oil cylinder [5.1] is fixed on the top boom of second jib joint [4], its other end and connecting rod A[5.2] and connecting rod B[5.3] hinged, connecting rod A[5.2] and connecting rod B[5.3] the other end then respectively with arm-tie A[6] annex [6.2] and [6.3] hinged.