CN110606441A - Full-ground crane boom and use method thereof - Google Patents

Full-ground crane boom and use method thereof Download PDF

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Publication number
CN110606441A
CN110606441A CN201910912229.5A CN201910912229A CN110606441A CN 110606441 A CN110606441 A CN 110606441A CN 201910912229 A CN201910912229 A CN 201910912229A CN 110606441 A CN110606441 A CN 110606441A
Authority
CN
China
Prior art keywords
arm
super
tension
support rod
steel wire
Prior art date
Application number
CN201910912229.5A
Other languages
Chinese (zh)
Inventor
史俊青
臧其亮
徐志鹏
贺建华
崔洁
国芳
Original Assignee
江苏建筑职业技术学院
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 江苏建筑职业技术学院 filed Critical 江苏建筑职业技术学院
Priority to CN201910912229.5A priority Critical patent/CN110606441A/en
Publication of CN110606441A publication Critical patent/CN110606441A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00Other constructional features or details
    • B66C13/16Applications of indicating, registering, or weighing devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62Constructional features or details
    • B66C23/64Jibs
    • B66C23/66Outer or upper end constructions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62Constructional features or details
    • B66C23/72Counterweights or supports for balancing lifting couples
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/88Safety gear

Abstract

The invention belongs to the technical field of cranes, and particularly relates to a full-ground crane jib and a use method thereof. This application adopts novel fly jib assembly to combine to use super, surpass the flexibility of boom, promoted the hoist and weight performance of complete machine under the pulling force of wire rope that rises.

Description

Full-ground crane boom and use method thereof

Technical Field

The invention belongs to the technical field of cranes, and particularly relates to a full-ground crane boom and a use method thereof.

Background

The suspension arm is an important part of the all-terrain crane, and the traditional crane suspension arm usually has the following two problems when wind power hoisting is carried out: height or amplitude are not enough, and hoisted objects interfere with the head of the tail arm. If the problem is solved by increasing the length of the main arm of the crane, the weight of the whole vehicle is increased, the number of axles is increased, and finally the cost of the whole vehicle is increased greatly. The installation and the disassembly of the wind power are influenced, thereby restricting the development of the wind power installation industry.

With the development of cranes, when a wind generating set is installed on the market at present, a common mode is a fixed auxiliary arm working condition or a wind power special arm head working condition. If the working condition of the fixed auxiliary arm is used, when the arm support is installed, more parts are often required to be installed on the main arm, and time and labor are wasted in installation and disassembly; and the main arm is provided with more parts, so that the weight is heavier, the stability of the long arm frame is greatly influenced, and the hoisting capacity of the whole machine is reduced.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides an all-terrain crane boom and a using method thereof.

The invention is realized by the following technical scheme: a full-ground crane boom comprises a chassis, a main arm is mounted on the chassis, an auxiliary arm is mounted at the head of the main arm, a support rod and a second support rod are hinged to the auxiliary arm, the support rod is hinged to the corner of the auxiliary arm, a Y-shaped or portal-shaped cantilever type super-lift is arranged on the main arm, super-lift steel wire ropes are arranged at two ends of the super-lift, the other end of each super-lift steel wire rope is connected with a second transition plate hinged to the second support rod, a pull rope is connected between one end, far away from the super-lift steel wire ropes, of each second transition plate and a transition plate hinged to the support rod, the transition plates are connected with the pull ropes through connecting frames, tension sensors are arranged in the connecting frames, one ends, far away from the pull ropes, of the transition plates are connected with pull ropes, one ends, far away from; the arm head of the auxiliary arm is also provided with a pulley block, and one side of the pulley block, which is far away from the auxiliary arm, is provided with a rope stopper; and a rope guide wheel is also arranged at the corner of the auxiliary arm.

Furthermore, the auxiliary arm is composed of a plurality of sections of foundation arms, and each section of foundation arm is provided with a hoisting hole.

Furthermore, a walking board is arranged on the auxiliary arm along the arm length direction, and the walking board is of a net structure consisting of a plurality of boards and shafts.

Furthermore, the supporting rod and the second supporting rod are rod pieces.

Furthermore, the support rod and the second support rod are both arm supports consisting of a plurality of rod pieces.

The invention also provides a use method of the all-terrain crane jib, the all-terrain crane jib is adopted, the auxiliary jib is pre-tightened by the super-lifting steel wire rope before the wind turbine generator set is hoisted, hoisting is started after pre-tightening is finished, in the hoisting process, the tension sensors detect the tension of the left super-lifting steel wire rope and the right super-lifting steel wire rope in real time, signals of the wind speed, the length, the amplitude variation angle and the hoisting weight are read by the torque limiter, and the controller determines the super-lifting hoisting action after algorithm calculation according to the requirements on the tension, the tension difference value, the tension of the left super-lifting steel wire rope and the tension of the right super-lifting steel wire rope and handle signals until the left super-lifting tension meets the requirements.

The invention has the beneficial effects that: according to the auxiliary arm, the super-lift is added, so that the deflection of the auxiliary arm is reduced under the tension of the super-lift steel wire rope, and the lifting performance of the whole machine is improved; traditional fly jib adopts longer arm-tie to connect fly jib arm head and strutting arrangement, and this application adopts wire rope to come as arm head stay cord, the weight of reduction fly jib assembly that can be better.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2a is a schematic view of the structure of the sub-arm of the present invention;

FIG. 2b is a schematic view of a partial structure of the secondary arm of the present invention;

FIG. 3 is a control logic diagram of the present invention;

in the figure, 1, a chassis, 2, a super boom, 3, a super boom steel wire rope, 4, a pull rope, 5, a support rod, 6, a boom head pull rope, 7, a second support rod, 8, an auxiliary boom, 8-1, an auxiliary boom main beam, 8-2, an auxiliary boom support, 9, a main boom, 10, a main boom connecting hole, 11, a second transition plate hinge point, 12, a second transition plate, 13, a second support rod hinge point, 14, a hoisting hole, 15, a transition plate hinge point, 16, a support rod hinge point, 17, a tension sensor, 18, a transition plate, 19, a pulling plate, 20, a walking board, 21, a connecting frame, 22, a guide wheel, 23, a rope stopper, 24 and a pulley device.

Detailed Description

The invention is further illustrated below with reference to the figures and examples.

As shown in fig. 1, 2a and 2b, an all-terrain crane boom comprises a chassis 1, a main arm 9 is arranged on the chassis 1, an auxiliary arm 8 is arranged at the head of the main arm 9, the auxiliary arm 8 is composed of auxiliary arm main beams 8-1 and auxiliary arm supports 8-2 which are crosswise arranged among the auxiliary arm main beams 8-1, the auxiliary arm 8 is connected with the head of the main arm 9 through a main arm connecting hole 10, the auxiliary arm 8 and a support rod 5 are hinged with a support rod hinge point 16, the auxiliary arm 8 and a second support rod 7 are hinged with a second support rod hinge point 13, the support rod 5 is hinged at the corner of the auxiliary arm 8, a Y-shaped or door-shaped cantilever type super-lift 2 is arranged on the main arm 9, super-lift steel wire ropes 3 are arranged at both ends of the super-lift steel wire ropes 3, the other end of the super-lift steel wire ropes 3 is connected with a second transition plate 12 hinged with the second support rod 7, the second transition plate 12 is hinged with a, a pull rope 4 is connected between one end of the second transition plate 12, which is far away from the super-lift steel wire rope 3, and a transition plate 18 hinged on the support rod 5, the transition plate 18 and the support rod 5 are hinged at a transition plate hinge point 15, the transition plate 18 is connected with the pull rope 4 through a connecting frame 21, a tension sensor 17 is arranged in the connecting frame 21, one end of the transition plate 18, which is far away from the pull rope 4, is connected with a pull plate 19, one end of the pull plate 19, which is far away from the transition plate 18, is connected with an arm head pull rope 6, and the other end of the arm head pull rope 6 is connected with an arm head; the arm head of the auxiliary arm 8 is also provided with a pulley block 24, and one side of the pulley block 24, which is far away from the auxiliary arm 8, is provided with a rope stopper 23; a rope guide wheel 22 is also arranged at the corner of the auxiliary arm 8. The steel wire rope used for hoisting the wind turbine generator or other heavy objects reaches the pulley block 24 through the rope guide wheel 22, the winding multiplying power on the pulley block 24 is determined according to the weight of the wind turbine generator and the height required to be hoisted, and the rope stopper 23 is used for enabling the steel wire rope to be wound on the pulley block 24 in order to prevent rope disorder.

Specifically, the auxiliary boom 8 is composed of a plurality of sections of foundation booms, each section of foundation boom is provided with a hoisting hole 14, and the hoisting holes 14 facilitate hoisting and connection of the auxiliary boom 8.

Further, a walking board 20 is mounted on the auxiliary arm 8 along the arm length direction, the walking board 20 is a net structure composed of a plurality of plates and shafts, and the walking board 20 is mainly used for maintenance of the auxiliary arm 8, winding of a steel wire rope and the like.

Further, the support rod 5 and the second support rod 7 are both rod members. In addition, the support rod 5 and the second support rod 7 may also be an arm support composed of a plurality of rod pieces.

The invention also provides a using method of the all-terrain crane boom, and the all-terrain crane boom is adopted. After the main arm 9 of the crane extends out, the main arm 9 is often deviated to the left or to the right, in order to enable the main arm 9 not to be deviated, the tension of the left and right super-lifting steel wire ropes 3 has a certain difference, when the lifting weight is large, the difference of the left and right super-lifting tension can be further increased, a large potential safety hazard exists, and even the danger of arm folding exists. Before the wind turbine generator is hoisted, the auxiliary boom 8 is pre-tightened through the super-lifting steel wire rope 3 by the super-lifting 2, hoisting is started after pre-tightening is finished, in use, along with the change of the hoisting weight, the boom head pull rope 6 can generate a certain stretching amount, and further the deflection of the main boom 9 and the auxiliary boom 8 can be influenced, as shown in figure 3, in the hoisting process, the tension sensors 17 detect the tension of the left super-lifting steel wire rope 3 and the tension of the right super-lifting steel wire rope 3 in real time, and read signals of wind speed, the length of the suspension arm, amplitude changing angle and hoisting weight through the torque limiter, and different force limiter system states have different requirements on the tension magnitude and tension difference of. The controller determines the action of the super-lift winch after algorithm calculation according to the requirements on the tension magnitude, the tension difference value, the tension magnitude of the left super-lift steel wire rope and the right super-lift steel wire rope and a handle signal until the left super-lift 3 tension meets the requirements.

Claims (6)

1. The utility model provides a full ground hoist davit which characterized in that: comprises a chassis (1), a main arm (9) is arranged on the chassis (1), an auxiliary arm (8) is arranged at the arm head of the main arm (9), a support rod (5) and a second support rod (7) are hinged on the auxiliary arm (8), the support rod (5) is hinged at the corner of the auxiliary arm (8), a Y-shaped or door-shaped cantilever type super-lifting device (2) is arranged on the main arm (9), super-lifting steel wire ropes (3) are respectively arranged at the two ends of the super-lifting device (2), the other end of the super-lifting steel wire ropes (3) is connected with a second transition plate (12) hinged on the second support rod (7), a pull rope (4) is connected between one end of the second transition plate (12) far away from the super-lifting steel wire ropes (3) and the transition plate (18) hinged on the support rod (5), the transition plate (18) is connected with the pull rope (4) through a connecting frame (21), a tension sensor (17) is arranged in the connecting frame (21), one end of the transition plate (, one end of the pulling plate (19) far away from the transition plate (18) is connected with an arm head pull rope (6), and the other end of the arm head pull rope (6) is connected with the arm head of the auxiliary arm (8); the arm head of the auxiliary arm (8) is also provided with a pulley block (24), and one side of the pulley block (24) far away from the auxiliary arm (8) is provided with a rope stopper (23); a rope guide wheel (22) is also arranged at the corner of the auxiliary arm (8).
2. An all-terrain crane boom as claimed in claim 1, wherein: the auxiliary arm (8) is composed of a plurality of sections of basic arms, and each section of basic arm is provided with a hoisting hole (14).
3. An all-terrain crane boom as claimed in claim 1, wherein: the auxiliary arm (8) is also provided with a walking plate (20) along the arm length direction, and the walking plate (20) is of a net structure consisting of a plurality of plates and shafts.
4. An all-terrain crane boom as claimed in claim 1, wherein: the supporting rod (5) and the second supporting rod (7) are rod pieces.
5. An all-terrain crane boom as claimed in claim 1, wherein: the support rod (5) and the second support rod (7) are both arm supports consisting of a plurality of rod pieces.
6. The use method of the full-ground crane boom is characterized by comprising the following steps: the all-terrain crane boom according to any one of claims 1 to 5 is adopted, a fly jib (8) is pre-tightened by a fly jib (2) before a wind turbine generator is hoisted through a fly jib steel wire rope (3), hoisting is started after pre-tightening is finished, in the hoisting process, tension sensors (17) detect the tension of a left fly jib and a right fly jib steel wire rope (3) in real time, signals of wind speed, boom length, amplitude variation angle and hoisting weight are read through a torque limiter, and a controller determines the motion of fly jib hoisting after algorithm calculation according to the requirements on the tension, the tension difference value, the tension of the left fly jib and the right fly jib steel wire rope and handle signals until the tension of the left fly jib and the right fly jib (3) meets the requirements.
CN201910912229.5A 2019-09-25 2019-09-25 Full-ground crane boom and use method thereof CN110606441A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910912229.5A CN110606441A (en) 2019-09-25 2019-09-25 Full-ground crane boom and use method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910912229.5A CN110606441A (en) 2019-09-25 2019-09-25 Full-ground crane boom and use method thereof

Publications (1)

Publication Number Publication Date
CN110606441A true CN110606441A (en) 2019-12-24

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Application Number Title Priority Date Filing Date
CN201910912229.5A CN110606441A (en) 2019-09-25 2019-09-25 Full-ground crane boom and use method thereof

Country Status (1)

Country Link
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202008006457U1 (en) * 2008-05-10 2009-09-24 Terex Demag Gmbh Boom element for a hoist
JP2011121731A (en) * 2009-12-11 2011-06-23 Tadano Ltd Working machine with boom
CN203428807U (en) * 2013-07-24 2014-02-12 徐州重型机械有限公司 Independent arm head special for wind power generator
CN105460807A (en) * 2015-11-24 2016-04-06 徐州重型机械有限公司 All-terrain crane
CN107117542A (en) * 2017-06-30 2017-09-01 徐州重型机械有限公司 Crane
CN107140557A (en) * 2017-06-12 2017-09-08 徐州重型机械有限公司 The special jib structure of wind-powered electricity generation and crane
CN110155891A (en) * 2019-06-28 2019-08-23 徐工集团工程机械股份有限公司建设机械分公司 Lifting equipment

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202008006457U1 (en) * 2008-05-10 2009-09-24 Terex Demag Gmbh Boom element for a hoist
JP2011121731A (en) * 2009-12-11 2011-06-23 Tadano Ltd Working machine with boom
CN203428807U (en) * 2013-07-24 2014-02-12 徐州重型机械有限公司 Independent arm head special for wind power generator
CN105460807A (en) * 2015-11-24 2016-04-06 徐州重型机械有限公司 All-terrain crane
CN107140557A (en) * 2017-06-12 2017-09-08 徐州重型机械有限公司 The special jib structure of wind-powered electricity generation and crane
CN107117542A (en) * 2017-06-30 2017-09-01 徐州重型机械有限公司 Crane
CN110155891A (en) * 2019-06-28 2019-08-23 徐工集团工程机械股份有限公司建设机械分公司 Lifting equipment

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