CN101973491B

CN101973491B - Construction method for hoisting by using double-tower low-pylon self-balanced elevating device

Info

Publication number: CN101973491B
Application number: CN2010105146478A
Authority: CN
Inventors: 程志
Original assignee: China National Chemical Engineering Third Construction Co Ltd
Current assignee: China National Chemical Engineering Third Construction Co Ltd
Priority date: 2010-10-21
Filing date: 2010-10-21
Publication date: 2012-04-18
Anticipated expiration: 2030-10-21
Also published as: CN101973491A

Abstract

The invention discloses a construction method for hoisting by using a double-tower low-pylon self-balanced elevating device, which belongs to the technical field of hoisting. During construction, the lower part of a hoisting rope buckle is connected with a main lifting lug of equipment, while the upper part is connected with a U-shaped clamp; and the tail part of the equipment is connected with a rope by a crane and vertically moves forward along with the head part of the equipment until the equipment is fully erected and positioned on the ground. During the hoisting and erecting of the equipment, the method is not limited by space, has wide using range and is safe.

Description

Use the construction method of the low pylon self-balancing bont hoisting and hanging of double-tower type

Technical field

The present invention relates to the hoisting and hanging technical field, refer to a kind of construction method of using the low pylon self-balancing bont hoisting and hanging of double-tower type especially.

Background technology

Development along with production technology and requirement and equipment manufacture industry; Large-scale even superhuge equipment or parts have appearred; Because the limitation of field condition; The weight of equipment head and shoulders above the specified load-carrying capacity of conventional weight-lifting equipment, so the gate-type hydraulic lifting apparatus highlights advantage in this respect, occupied the leading position in lifting market.The gate-type hydraulic lifting apparatus; Constitute by hydraulic pressure lift portal frame and connected hydraulic rockshaft, the lifting of this gate-type hydraulic lifting apparatus steadily, but its can only vertical lifting equipment in the framework of upright door frame; Use for large-scale superelevation chemical plant; Often require the portal frame height to exceed a part than device height and come, the performance of mechanized construction degree, safe reliability and the portal frame of hoisting and hanging all has reduction in various degree, can not effectively utilize the in-use performance of door frame; Thereby its field of application is restricted, has significant limitation.

Summary of the invention

The object of the present invention is to provide a kind of construction method of using the low pylon self-balancing bont hoisting and hanging of double-tower type, it is guaranteeing that range of use is wide under the situation safe in utilization.

To achieve these goals, technical solution of the present invention is:

A kind of construction method of using the low pylon self-balancing bont hoisting and hanging of double-tower type, it comprises the steps:

(1) equipment is transported to the scene, is captiveed joint with second bearing pin of U type anchor clamps in main lifting sling top, the bottom is connected with the main hanger of equipment head both sides, uses the crane lifting rope, and system hangs on the equipment afterbody hanger with rope;

(2) crane is slowly played hook, and makes the bonded assembly second strand pretension on second hydraulic rockshaft, second hydraulic rockshaft is promoted reach the lifting load 40% after stop action;

(3) pylon column, first and second hydraulic rockshaft, equipment, crane, rope and ground-surface sedimentation each item are checked, are confirmed to make second hydraulic rockshaft continue to promote after normal, reach the lifting load 80% after stop action;

(4) projects in the step (3) are checked once more; After confirming normally second hydraulic rockshaft is cooperated with crane equipment is lifted the support saddle 100mm under the equipment of leaving; Stagnate being connected between fastening first hydraulic rockshaft and ground after 60 minutes, and then, continue to promote second hydraulic rockshaft about 1000mm after the passed examination above each item inspection; Support saddle under the equipment is removed, removed the walking road of crane;

(5) second hydraulic rockshafts two the main hangers of lifting means head that make progress, crane cooperate lifts the afterbody that send equipment and along with the uprightly walking forward of equipment, the equipment of treating hang straight after; Remove the rope on the crane; Second hydraulic rockshaft is descended, when device bottom stops adjustment equipment orientation during apart from ground 50-100mm; Second hydraulic rockshaft is descended, descend in place up to equipment.

The present invention uses the construction method of the low pylon self-balancing bont hoisting and hanging of double-tower type, and wherein said crane is selected LR1400/2 type crawler crane for use, and said first and second hydraulic rockshaft is all selected LSD6000-400 type 600t hydraulic rockshaft for use.

After adopting such scheme; The vertical direction that the present invention uses the construction method of the low pylon self-balancing bont hoisting and hanging of double-tower type to utilize second hydraulic rockshaft to accomplish hanging device promotes; Load for the balance second hydraulic rockshaft lifting means; The equipment load that first hydraulic rockshaft and member holding device come balance lifting beam one end is set between the other end and the ground of lifting beam because the lifting beam of this device is pair mounting structures, so hanging device can be between two pylon columns vertical-lift and do not receive the interference of this apparatus structure; Its hydraulic pressure lift pylon that has changed traditional hoisting and hanging device must be higher than the deficiency of device height; This construction method efficient extn the lifting scope, and its lifting propulsion source be hydraulic efficiency power unit, dynamical stability is safe in utilization.

Description of drawings

Fig. 1 is the main TV structure scheme drawing of the low pylon bont of double-tower type of the present invention;

Fig. 2 is the right TV structure scheme drawing of the low pylon bont of double-tower type of the present invention;

Fig. 3 is the plan structure scheme drawing of the low pylon bont of double-tower type of the present invention;

Fig. 4 is the front view of the member holding device of the low pylon bont of double-tower type of the present invention;

Fig. 5 be the low pylon bont of double-tower type of the present invention the member holding device overlook part sectional view;

Fig. 6 is the left view of the member holding device of the low pylon bont of double-tower type of the present invention;

Fig. 7 is the right elevation of the member holding device of the low pylon bont of double-tower type of the present invention;

Fig. 8 is the U type anchor clamps front view of the member holding device of the low pylon bont of double-tower type of the present invention;

Fig. 9 is the U type anchor clamps right elevation of the member holding device of the low pylon bont of double-tower type of the present invention.

Figure 10 is the running condition reference diagram of the low pylon bont of double-tower type of the present invention.

Below in conjunction with accompanying drawing, the present invention is done further explanation through embodiment.

The specific embodiment

See also Fig. 1 to shown in Figure 3, the low pylon bont of double-tower type of the present invention is arranged by two branches and symmetrical pylon mechanism 1 and a U type connect truss 2 and form;

Pylon mechanism 1 comprises lifting beam 5, first hydraulic rockshaft 6, second hydraulic rockshaft 7, member holding device 8 and the anchor clamps 9 of lifting stock 4, the truss structure of pylon column 3, the truss structure of truss structure;

Pylon column 3, lifting stock 4 vertically are fixed together to being arranged on the ground and with ground; Pylon column 3 lower ends are arranged at and promote stock 4 inside; Pylon column 3 upper ends are connected with the bottom of lifting beam 5 after passing and promoting stock 4; Connect at least one cable wind rope 11 respectively on four faces in the front, rear, left and right at pylon column 3 tops; According to weather and the installation quantity of the geographic position decision cable wind rope 11 of this bont in each orientation is installed, captiveing joint with ground in the lower end of cable wind rope 11, catches hold of the stability that this device can guarantee this device with cable wind rope here;

Lifting beam 5 is welded by several channel-section steels 52 between two facade crossbeams 51 and two the facade crossbeams 51; Lifting beam 5 is horizontally set at the upper end of pylon column 3; Extremely shown in Figure 7 in conjunction with Fig. 4; Member holding device 8 is made up of the first member clamper 81 and bracing frame 82, and bracing frame 82 is by oblong housing 821, four

wing plates

8221,8222, two otic placodes 823 and first bearing pin, 824 compositions; The forward and backward plate middle part of housing 821 is respectively equipped with uncovered; Housing 821 inner chamber right parts are provided with a dividing plate 825, are respectively equipped with first through hole 826 and second through hole 827 on the right panel of housing 821 and the dividing plate 825, and second through hole, the 827 left side outer rims that are positioned at dividing plate 825 are provided with a bearing 828; The first member clamper 81 is installed on the bearing 828; Wherein two wing plates 8221 are symmetricly set in the forward and backward side of housing 821 upper surfaces, and two other wing plate 8222 is symmetricly set in the forward and backward side of housing 821 lower surfaces, and the right-hand member of two otic placodes 823 is provided with semi-circular recesses 8231; Two otic placodes 823 insert housing 821 inner chambers after passing housing 821 left plates; First bearing pin 824 is connected fixingly by passing first strand, 61 upper ends on two otic placodes, 823, the first hydraulic rockshafts 6 behind the forward direction with member clamper 81, first hydraulic rockshaft 6 is fixed on the ground; Be welded with two second otic placodes 521 on the channel-section steel 52 of lifting beam 5 left ends; Two otic placodes 823 of member holding device 8 are fixedly installed togather through first bearing pin 824 and two second otic placodes 521, and the upper surface right-hand member of lifting beam 5 is installed second strand, the 71 lower end jockeies 9 on second hydraulic rockshaft, 7, the second hydraulic rockshafts 7; The system that is made up of ground, first hydraulic rockshaft 6, first strand 61 and member holding device 8 is second hydraulic rockshaft, the 7 lower end bonded assembly equipment load power for balance suspention beam 5 right-hand members; Make lifting beam 5 right ends reach equilibrium of forces, the power of first hydraulic rockshaft 6 must constantly be adjusted along with the load change on second hydraulic rockshaft 7 in whole hoisting process, cooperates with second hydraulic rockshaft 7 through synchronous measurement control.A whole set of hydraulic lifting device all adopts computer controlled, can accomplish multiple functions such as synchronization lifting, load equalization, attitude correction, parameter demonstration and fault alarm in full automaticity ground, in addition; In moving, along control, reach multiple operating mode such as single action, interlock automatically and extremely be adapted to the site operation operation, in conjunction with Fig. 8 and shown in Figure 9, anchor clamps 9 are made up of U type clamping plate 91, the second member clamper 92 and second bearing pin 93; U type clamping plate 91 tops are provided with through hole 911; The second member clamper 92 is installed in the through hole 911, and second bearing pin 93 is placed through two plate bottoms of U type clamping plate 91, is provided with guide frame 12 above second hydraulic rockshaft 7; Guide frame 12 is the roller shape; Second strand 71 is through the wheel rim of guide frame 12, and the lower end of guide frame 12 is fixed on the lifting beam 5, and second strand, 71 lower ends and the second member clamper 92 are fixing;

The back surface that the U type connects truss 2 is fixed together with the front of the lifting beam 5 of two pylon mechanisms 1 respectively; The U type connects the resistance to overturning that being provided with of truss 2 increased between the two pylon columns 3 and the torsional property of pylon column 3, and does not influence the upright of equipment.

In conjunction with shown in Figure 10, the construction method of the hoisting and hanging of the low pylon bont of this double-tower type comprises the steps:

(1) equipment 30 is transported to the scene; Be connected main lifting sling 40 tops fixing with second bearing pin 93 of U type anchor clamps 9; The bottom is connected with the main hanger 301 of equipment 30 head both sides, with the crane 50 lifting ropes 60 of LR1400/2 type crawler crane, is to hang on the equipment afterbody hanger 302 with rope 60;

(2) crane 50 is slowly played hook; Select first hydraulic rockshaft 6 and second hydraulic rockshaft 7 of LSD6000-400 type 600t for use; Make bonded assembly second strand 71 pretensions on second hydraulic rockshaft 7, second hydraulic rockshaft 7 is promoted reach the lifting load 40% after stop action;

(3) pylon column 3, first hydraulic rockshaft 6, second hydraulic rockshaft 7, equipment 30, crane 50, rope 60 and land subsidence each item are checked; Confirm to make second hydraulic rockshaft 7 continue to promote after normal, reach the lifting load 80% after stop action;

(4) projects in the step (3) are checked once more; After confirming normally second hydraulic rockshaft 7 is cooperated with crane 50 equipment 30 has been lifted the support saddle 100mm under the equipment of leaving 30; Stagnate being connected between fastening first hydraulic rockshaft 6 and ground after 60 minutes, and then, continue to promote second hydraulic rockshaft 7 about 1000mm after the passed examination above each item inspection; Support saddle under the equipment 30 is removed, removed the walking road of crane 50;

(5) second hydraulic rockshafts 7 are two main hangers 301 of lifting means 30 heads upwards, and crane 50 cooperates lifts the afterbody that send equipment 30 and along with the uprightly walking forward of equipment 30, treat equipment 30 hang straight after; Remove the rope 60 on the crane 50; Second hydraulic rockshaft 7 is descended, when equipment 30 distance from bottom ground 50-100mm, stop adjustment equipment 30 orientation; Second hydraulic rockshaft 7 is descended, descend in place up to equipment 30.

The vertical direction that the present invention uses the construction method of the low pylon self-balancing bont hoisting and hanging of double-tower type to utilize second hydraulic rockshaft 7 to accomplish hanging device promotes; Load for balance second hydraulic rockshaft 7 lifting means; First hydraulic rockshaft 6 is set between the other end that lifts beam 5 and ground comes balance to lift the equipment load of beam one end with member holding device 8; Because the lifting beam 5 of this device is two mounting structures; Therefore the equipment that will lift can be between two pylon columns 3 vertical-lift and do not receive the interference of this apparatus structure; Its hydraulic pressure lift pylon that has changed traditional hoisting and hanging device must be higher than the deficiency of device height, this bont efficient extn the lifting scope, and since its lifting power safe in utilization with hydraulic efficiency power unit.

The above embodiment describes preferred implementation of the present invention; Be not that scope of the present invention is limited; Design under the prerequisite of spirit not breaking away from the present invention; Various distortion and improvement that the common engineering staff in this area make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.

Claims

1. construction method of using the low pylon self-balancing bont hoisting and hanging of double-tower type; It is characterized in that: this bont is arranged by two branches and symmetrical pylon mechanism and a connection truss are formed; Said pylon mechanism comprises the pylon column of truss structure, the lifting stock of truss structure, lifting beam, first and second hydraulic rockshaft, member holding device and the U type anchor clamps of truss structure; The left end installation component holding device of the lifting beam of the pylon mechanism on the left side; First strand upper end on said first hydraulic rockshaft is connected with said member holding device, and said first hydraulic rockshaft is fixed on the ground, and the upper surface right-hand member of the lifting beam of the pylon mechanism on the left side is installed second hydraulic rockshaft; The second strand lower end on said second hydraulic rockshaft connects U type anchor clamps, and it comprises the steps:

(2) crane is slowly played hook, and makes the bonded assembly second strand pretension on second hydraulic rockshaft, second hydraulic rockshaft is promoted, reach the lifting load 40% after stop action;

2. the construction method of the low pylon self-balancing bont hoisting and hanging of use double-tower type as claimed in claim 1; It is characterized in that: said crane is selected LR1400/2 type crawler crane for use, and said first and second hydraulic rockshaft is all selected LSD6000-400 type 600t hydraulic rockshaft for use.