CN2292782Y

CN2292782Y - Tower craning and concrete distributing machine

Info

Publication number: CN2292782Y
Application number: CN 96224469
Authority: CN
Inventors: 曹仲梅
Original assignee: CHANGSHA CONSTRUCTION MACHINERY INST MINISTRY OF CONSTRUCTIONS
Current assignee: Changsha Zoomlion Heavy Industry Science and Technology Development Co Ltd
Priority date: 1996-08-23
Filing date: 1996-08-23
Publication date: 1998-09-30
Anticipated expiration: 2006-08-23

Abstract

The utility model relates to a machine of integrating a tower type crane and a tower type concrete cloth rod. The utility model is characterized in that the balance weight of an upper slewing crane of a tower type is removed, and a balance arm [23] is provided with an arm folding type (or an arm rolling type) concrete cloth rod, a crane arm [10] lifts and swings or the cloth rod folds an arm by adopting a crane arm swing hoister [22], a movable pulley group [16], a fixed pulley group [17], etc., and the purpose that the machine is also suitable for the use of places with narrow construction space is ensured. The utility model has the advantages of simple structure, unambiguous stress and quick change of two operations, and is a real dual-purpose machine.

Description

The dual-purpose machine of tower lifting concrete distributing

The utility model relates to vehicle for construction, and particularly high-level slewing tower crane and transmission and concrete transmission equipment is applied to the engineering construction field.

The recent dual-purpose machine of tower lifting, concrete distributing that occurs, its elevator boom rack is configured in the same side (relative weight arm) with concrete placing boom.Like this, two kinds of equipments are changed when using, and increase non-cutting time.When making concrete distributing, its folding and unfolding running is difficulty; When doing the lifting of tower machine, owing to increased boom, the stressed increasing of main components, and force-bearing situation complexity, the use of have to demoting of the load-carrying ability of tower machine.Add reasons such as complex structure, be difficult to promote the use of.

The utility model is at above-mentioned deficiency, provides a kind of tower crane that both guaranteed can normally bring into play original performance, can carry out concrete distributing flexibly and comfortably as the tower concrete placing boom of special use again, is a kind of real dual-purpose machine.

The utility model is achieved in that the counterbalanced weight with common jack up high-level slewing tower crane removes, replace counterbalanced weight with folding-jib (or rolling up arm-type) concrete placing boom, increasing annex (as bearing pin, pull bar) on equilibrium arm is transformed into and is suitable for installing folding-jib (or rolling up arm-type) concrete placing boom, and increase by cover winch, assembly pulley and members such as strut, pull bar again, crane arm can be swung in vertical plane surface.

Accompanying drawing 1 is the utility model structural representation.

Accompanying drawing 2 is the utility model (the band strut does not have cat head) structural representation.

Scheme drawing when accompanying drawing 3 is done the lifting of tower machine for the utility model in narrow place.

Scheme drawing when accompanying drawing 4 is made concrete distributing for the utility model in narrow place.

Among the figure: for can connect high body of the tower, [2] are the frame that climbs [1], and [3] are jacking cylinder, [4] be undersetting, [5] are pivoting support, and [6] are slewing tower, [7] be the both-way operation chamber, [8] are bearing pin I, and [9] are strut, [10] be crane arm, [11] are crane carriage, and [12] are load hook, [13] be front tension bar (or drag-line), [14] are more piece (length) pull bar A, and [15] are more piece (weak point) pull bar B, [16] be running block, [17] are the fixed pulley group, and [18] are cat head, [19] be crane arm swing hoisting rope, [20] are back stay, and [21] are hoisting winding, [22] be crane arm swing winch, [23] are equilibrium arm, and [24] are I joint arm oil cylinder, [25] be I joint arm, [26] be II joint arm oil cylinder, [27] are II joint arm, and [28] are III joint arm oil cylinder, [29] be III joint arm, [30] be bearing pin II, [31] are bearing pin V, and [32] are positioning tie bar, [33] be bearing pin III, [34] be bearing pin IV, [35] are positioning supporting rod, and [36] swing strut during for no cat head.

Existing accompanying drawings is as follows:

The jack up high-level slewing tower crane that one Daepori is logical, have and to connect high body of the tower [1] and the frame that climbs [2] is connected in below the undersetting [4], when going up affixed slewing tower [6] and cat head [18] (as accompanying drawing 1) or hinged no cat head, affixed pivoting support [5] on it, pivoting support [5] swing strut [36] (as accompanying drawing 2).Slewing tower [6] side hanging can before and after the both-way operation chamber [7] of manipulating crane and boom respectively, slewing tower [6] front bearing pin I[8] hinged crane arm [10], more piece (length) pull bar A[14], more piece (weak point) pull bar B[15] two ends are hinged with crane arm [10] and cat head [18] top respectively, make crane arm [10] be in horizontal service position.Equilibrium arm [23] is articulated in slewing tower [6] back, and back stay [20] two ends are hinged with equilibrium arm [23] and cat head [18] respectively, and equilibrium arm [23] position is determined.Boom 1 joint arm [25] one ends and equilibrium arm [23] are hinged, and I joint arm oil cylinder [24] two ends are hinged with equilibrium arm [23] and I joint arm [25] respectively.By stretching of I joint arm oil cylinder [24], making I save arm [25] axis can be 0～90 with respect to equilibrium arm [23] axis.Rotate in the scope.The connection of boom II joint arm [27], III joint arm [29], II joint arm oil cylinder [26], III joint arm oil cylinder [28] is the same with common boom with running.At equilibrium arm [23] afterbody, the outside of original hoisting winding [21] increases adorns crane arm swing winch [22].Bearing pin I[8 at crane arm] locate hinged strut [9], the steel rope of the hinged running block of the other end [16] of strut [9] and front tension bar (or drag-line) [13].Front tension bar (or drag-line) [13] is hinged with strut [9] and crane arm [10] respectively.Crane arm swing hoisting rope [19], pass cat head [18] or swing strut [36] (seeing accompanying drawing 1 and accompanying drawing 2), after walking around fixed pulley group [17] and running block [16], connect front tension bar (or drag-line) [13] and crane arm [10] again, can realize the swing of crane arm [10] in vertical plane surface.

When space, building operation place is unrestricted, can be by configuration shown in the accompanying drawing 1 (or accompanying drawing 2), steel rope is lax between running block [16] and the fixed pulley group [17] this moment, front tension bar (or drag-line) [13] does not stress, crane arm [10] and boom all are horizontal, no matter do tower crane with or make boom with all right, be independent of each other.

Narrow when space, building operation place, during restriction afterbody radius of turn size, can adopt shown in the accompanying drawing 3 (or accompanying drawing 4), can dwindle like this do tower crane with or make boom time spent afterbody radius of turn size.

Accompanying drawing 3 is situations that the tower crane time spent is done in narrow place, and crane arm [10] one sides are the same with accompanying drawing 1.Boom side: I joint arm oil cylinder [24] stretches out, make I joint arm [25] axis and equilibrium arm [23] axis normal, then, with the positioning tie bar [32] that is hinged on the equilibrium arm [23], I is saved arm [25] uses bearing pin III[33] connect, it is stressed that I joint arm oil cylinder [24] is not continued.Adjust II joint arm oil cylinder [26] length, make I joint arm [27] axis and I joint arm [25] axis normal ,] with positioning supporting rod [35], bearing pin IV[34, I is saved arm [25], I joint arm [27] location, make II joint arm oil cylinder [26] no longer stressed, (preventing oil cylinder when long-time the support, oil liquid leakage).III joint arm [29] allows it dangle.When hoisting crane was worked like this, tail radius can dwindle greatly.

Accompanying drawing 4 is situations that the boom time spent is done in narrow place, and boom is with the bearing pin III[33 of positioning tie bar [32]] and the bearing pin IV[34 of positioning supporting rod [35]] all remove.The crane arm side is used bearing pin II[30 with crane carriage [11]] be fixed in the front end of crane arm [10].Tighten up steel rope by crane arm swing winch [22] and make distance shortening between running block [16] and the fixed pulley group [17], by strut [9], front tension bar (or drag-line) [13] upwards draws pendulum with crane arm [10].This moment more piece (length) pull bar M[14] and more piece (weak point) pull bar B[15] loosen bending, correct position to be moved to, remove more piece (weak point) pull bar B[15] in one the joint, then, use bearing pin V[31] with the more piece after the brachymemma (weak point) pull bar B[15] connect with crane arm [10], loosen crane arm swing hoisting rope [19] again, make more piece (weak point) pull bar B[15] stressed, and crane arm swing hoisting rope [19] is no longer stressed.When boom was worked like this, the radius of turn of crane arm side can reduce.

The utlity model has simple in structure, (only increase few parts, do not change original structure), stressed clear and definite, can give full play to tower crane and boom performance, conversion is quick, is convenient to promote the use of.

Claims

1, the dual-purpose machine of a kind of tower lifting concrete distributing, relate to engineering lifting and concrete distributing device, have and to connect high body of the tower (1) and the frame that climbs (2) is connected in below the undersetting (4), affixed pivoting support (5) on it, pivoting support (5) is gone up affixed slewing tower (6) and cat head (18), slewing tower (6) the front hinged crane arm of bearing pin I (8) (10), equilibrium arm (23) is articulated in the back of slewing tower (6), also have folding-jib boom (24～29), feature of the present utility model is:

I〉folding-jib boom (24～29) is hinged by an end and the equilibrium arm (23) of boom I joint arm (25), and to save arm (25) hinged with equilibrium arm (23) and I respectively at I joint arm oil cylinder (24) two ends;

Ii〉equilibrium arm (23) that crane arm swing winch (22), positioning tie bar (32) be housed connects with cat head (18) with back stay (20);

Iii〉running block (16), fixed pulley group (17) reeled by crane arm swing hoisting rope (19), be arranged between cat head (18) and the front tension bar (or drag-line) (13), front tension bar (or drag-line) (13) two ends are hinged with crane arm (10) and strut (9) respectively, and the other end of strut (9) connects with slewing tower (6) with bearing pin I (8).