CN103145052A

CN103145052A - Movable circular track type crane

Info

Publication number: CN103145052A
Application number: CN2013100811577A
Authority: CN
Inventors: 魏文儒; 罗琰峰; 王铭铭; 屈福政; 郭传俊
Original assignee: Liaoning Fuwa Heavy Industry Machinery Co Ltd
Current assignee: Liaoning Fuwa Heavy Industry Machinery Co Ltd
Priority date: 2013-03-14
Filing date: 2013-03-14
Publication date: 2013-06-12

Abstract

The invention discloses a large-scale or ultra-large-scale movable circular track type crane suitable for modular hoisting operation of engineering. The movable circular track type crane comprises a hoisting operation system, a lower vehicle, a balance weight, a winch system and a power system, wherein the hoisting operation system comprises a double-girder A-type main arm, a double-girder mast, a double-girder mast bracket, a pulling plate and an amplitude changing mechanism, the lower vehicle is a movable circular track type lower vehicle, and the bottom of the double-girder A-type main arm and the bottom of the double-girder mast are hinged to the front end of the movable circular track type lower vehicle; the top of the double-girder mast is hinged to the double-girder mast bracket; the bottom of the double-girder mast bracket is hinged to the rear end of the movable circular track type lower vehicle; the top of the double-girder A-type main arm is connected with the top of the double-girder mast through the pulling plate and the amplitude changing mechanism; and the balance weight is fixedly arranged on the rear end of the movable circular track type lower vehicle. According to the movable circular track type crane, the hoisting capacity is large, the operating radius is large, and the hoisting moment is large; and the problems that the unit pressure of ground is overlarge, the rotation is instable, the lateral stability is poor, the operating radius is small and the like in the hoisting process of the ultra-large-scale crane are solved.

Description

Removable ring-rail type hoisting crane

One, technical field

The invention belongs to the hoisting crane technical field, particularly large-scale, superhuge ring-rail type hoisting crane.

Two, background technology

In nuclear power, petrochemical complex and ocean engineering module lifting operation, hang load carrying ability, height and the operating radius of hoisting crane had high requirements.Suitable large-scale, ultra-large type hoisting crane for guarantee work progress safety, stable, reliably reduce executive cost, to shorten the engineering time particularly important.But the most employing of goliath in the market is the version of two crawler vehicles, and when this makes gyroscopic movement, front and back car coordination control difficulty is large, and the complete machine lateral stability is poor, and the crawler belt grounding pressure is large, and then causes operating risk large, and construction cost is high.

Three, summary of the invention

The purpose of this invention is to provide a kind of large-scale, removable ring-rail type hoisting crane of ultra-large type that is suitable for nuclear power, petrochemical complex and ocean engineering module lifting operation, can guarantee work progress safety, stable, reliable.

Removable ring-rail type hoisting crane comprises the lift heavy operating system, gets off, counterweight, hoisting system and power system.The lift heavy operating system is made of two truss A type principal arms, two truss mast, two cage mast shaft bar, arm-tie and luffing device, get off and get off for removable ring-rail type, the bottom-hinged of the bottom of two truss A type principal arms and two truss masts is on the front end that removable ring-rail type is got off; Two truss mast top and two cage mast shaft bars top are hinged; Two cage mast shaft bars bottom is hinged with the rear end that removable ring-rail type is got off; The top of two truss A type principal arms connects with the top of two truss masts through arm-tie, luffing device; Counterweight is fixed on the rear end that removable ring-rail type is got off.

The of the present invention pair of truss A type principal arm coxopodite and two truss mast coxopodites are hinged on the front truck otic placode that removable ring-rail type gets off by bearing pin, can relatively rotate; Two cage mast masthead joints are hinged by bearing pin with two cage mast shaft bar epimerite; Two cage mast shaft bar coxopodites are fixed on the rear car otic placode that removable ring-rail type gets off by bearing pin, and two like this truss masts just can keep fixed angle constant with two cage mast shaft bars.The epimerite of two truss A type principal arms is connected with two cage mast masthead joints with the luffing pulley block mechanism by arm-tie.Control system just can be arranged on the angle that steel rope in luffing elevator folding and unfolding luffing pulley block mechanism on workplatform changes two truss A type principal arms and level ground by control.Span between two truss A type principal arm coxopodites is larger, and span less between epimerite, and the resistance to lateral bending of this version and the anti-side ability of tumbling is better.

Front truck and rear car that removable ring-rail type of the present invention is got off are fixed together by bearing pin and tie-beam.Under front truck and rear car, some wheels are housed, wheel one side is equipped with the driver trains such as HM Hydraulic Motor and is pressed on circular orbit.Circular orbit is connected by bolt with backing plate.The hydraulic efficiency pressure system of car load provides power to the HM Hydraulic Motor that is arranged on wheel, and its band motor car wheel is rotated, and reaches thus the rotating purpose of car load.Complete machine hangs front truck, wheel and the circular orbit that when carrying, power is got off by jib, removable ring-rail type and is delivered on backing plate, because the backing plate area is larger, thus will be very little to the grounding pressure of ground generation, require less to the solid degree in ground.Removable ring-rail type is got off and some crawler vehicles is housed under tie-beam, when the needs ferry construction, under track and backing plate dismounting, provides power to crawler vehicle by hydraulic efficiency pressure system, to reach the purpose of walking transition.

The present invention has that the carrying capacity of hanging is large, operating radius is large, hoisting moment reaches greatly steady operation and other merits.Having solved the super large hoisting crane, to hang when carrying grounding pressure excessive, and large-tonnage hangs when carrying that revolution is not steady, and lateral stability is bad, and the little and productive costs of operating radius is crossed the problems such as high.It is a kind of Novel crane of efficient, simple to operate, convenient transportation.

Four, description of drawings

Fig. 1 is overall structure schematic diagram of the present invention;

Fig. 2 is the removable ring-rail type of the present invention structural representation of getting off;

Fig. 3 is the two truss A shape main arm structure schematic diagrams of the present invention;

Fig. 4 is the two truss mast structural representations of the present invention;

Fig. 5 is the two cage mast shaft bar structural representations of the present invention;

Fig. 6 is hoisting system structural representation of the present invention;

Fig. 7 is the get off car wheel structure schematic diagram of front truck and rear car of ring-rail type of the present invention.

Five, the specific embodiment

This is large-scale, the removable ring-rail type hoisting crane of ultra-large type mainly by two truss A type principal arms 1, two truss mast 2, two cage mast shaft bar 3, removable ring-rail type get off 4, container type counter weight 5, hoisting system 8 and power system 9 consist of.The present invention be mainly for satisfy in nuclear power CAP1400, petrochemical complex and ocean engineering module lifting require to hang load carrying ability greatly, highly high, operating radius large and hang the special operation condition that carries gyrostabilized platform, this just requires, and whole boom system intensity is high, overall length is long, the anti-ability of tumbling is strong, swing type mechanism operates steadily, therefore boom system of the present invention all adopts two-spar structure, and swing type mechanism adopts wheel to make the form of circular movement on circular orbit.

Two truss A type principal arms 1 are formed by connecting by bearing pin according to certain assembling sequence by principal arm epimerite 17, principal arm connecting joint 18, transition segment 19, some principal arm middle nodes 20, connecting joint 21, principal arm coxopodite 22 and the assembly pulley 23 that is arranged on principal arm epimerite 17.Two truss masts 2 are comprised of the assembly pulley 28 on mast epimerite 24, mast connecting joint 25, some mast middle nodes 26, mast coxopodite 27 and mast epimerite 24.3 of two cage mast shaft bars are made of mast support epimerite 29, mast support connecting joint 30, some mast support middle nodes 31 and mast support coxopodite 32.

Main hoisting system 8, power system 9 and the hydra-electric system of arranging on workplatform.And hoisting system 6 can be divided into lifting elevator 33 and luffing elevator 34 by function.Draw hoisting cable 35 to principal arm head assembly pulley 23 and be wrapped on suspension hook according to multiplying power from promoting elevator 33.Draw variable-amplitude steel wire rope 36 from luffing elevator 34 and be wound around formation luffing device 7 with the luffing assembly pulley 37 that is connected with arm-tie 8 according to multiplying power to the assembly pulley 28 that is positioned on the mast epimerite.The other end of arm-tie 6 is connected on the principal arm epimerite 17 of two truss A type principal arms 1.Realize the variation of two truss A type principal arms 1 and level ground angle by the variable-amplitude steel wire rope 36 in control luffing device 9, adjust swinging radius with this.

Removable ring-rail type is got off and 4 is made of some backing plates 10, circular orbit 11, front truck 12, rear car 14 and tie-beam 13, and front truck 12 and rear car all are equipped with some wheels 15 for 14 times.Crawler vehicle 16 is housed below tie-beam 13, and crawler vehicle 16 is connected by ball pivot with tie-beam 13.Removable ring-rail type 4 front truck 12 side by king bolt and tie-beam 13 of getting off fixes, and the opposite side of tie-beam 13 is connected with rear car 14 with same form.The principal arm coxopodite 22 of two truss A type principal arms 1 and mast coxopodite 27 are hinged by bearing pin with the otic placode 39 on front truck 12, can relatively rotate.Mast support coxopodite 32 use bearing pins are fixed on the otic placode 38 of rear car 14.Front truck 12 and rear car all are equipped with some wheels 15 for 14 times, and wheel one side is equipped with HM Hydraulic Motor 41, and HM Hydraulic Motor 41 provides moment of torsion for wheel 15, do very gentle turn campaign thereby drive car load on track 11.Deviate from track 11 and in the both sides of front truck 12 and rear car 14, guiding device 40 is housed all when turning round in order to prevent car load.Track 11 is fixed by bolts on backing plate 10, and backing plate 10 tilings on the ground.Backing plate 10 areas are larger, therefore can play the effect that reduces grounding pressure.The car load workplatform is fixed on removable ring-rail type by pin bolt and gets off on 4 tie-beam 13.Tie-beam uses for 13 times the form of ball pivot to be connected with crawler vehicle 16.When car load need to change control position into, can first remove backing plate 10 and track 11, use the crawler vehicle 16 conversion station of walking.

Counterweight 5 is container type counter weight, adopts fill concrete formation in freight container.Container type counter weight 5 can be filled in freight container by the sandstone that field condition is got certain density on the spot and realize.Can special concrete block if condition does not allow yet, it is put in freight container, serve as container type counter weight.

Claims

1. removable ring-rail type hoisting crane, comprise the lift heavy operating system, get off, counterweight, hoisting system and power system, it is characterized in that: the lift heavy operating system is made of two truss A type principal arms (1), two truss mast (2), two cage mast shaft bar (3), arm-tie (6) and luffing device (7), get off and get off (4) for removable ring-rail type, the bottom-hinged of the bottom of two truss A type principal arms (1) and two truss masts (2) is on removable ring-rail type is got off the front end of (4); Two truss masts (2) top and two cage mast shaft bars (3) top are hinged; The get off rear end of (4) of two cage mast shaft bars (3) bottoms and removable ring-rail type is hinged; The top of two truss A type principal arms (1) connects with the top of two truss masts (2) through arm-tie (6), luffing device (7); Counterweight (5) is fixed on removable ring-rail type the get off rear end of (4).

2. removable ring-rail type hoisting crane according to claim 1, it is characterized in that: removable ring-rail type is got off (4) by some backing plates (10), circular orbit (11), front truck (12), rear car (14) and tie-beam (13) formation, under front truck (12) and rear car (14), some wheels (15) is housed all.

3. removable ring-rail type hoisting crane according to claim 2, it is characterized in that: crawler vehicle (16) is housed below tie-beam (13), and crawler vehicle (16) is connected by ball pivot with tie-beam (13).

4. removable ring-rail type hoisting crane according to claim 1 is characterized in that: counterweight (5) is container type counter weight (5), adopts that in freight container, fill concrete consists of.