CN102491204B - Auxiliary jib lifting device of crawler crane and crane comprising auxiliary jib lifting device - Google Patents

Auxiliary jib lifting device of crawler crane and crane comprising auxiliary jib lifting device Download PDF

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Publication number
CN102491204B
CN102491204B CN201110436431.9A CN201110436431A CN102491204B CN 102491204 B CN102491204 B CN 102491204B CN 201110436431 A CN201110436431 A CN 201110436431A CN 102491204 B CN102491204 B CN 102491204B
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CN
China
Prior art keywords
luffing
jib
arm
pulling force
luffing jib
Prior art date
Application number
CN201110436431.9A
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Chinese (zh)
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CN102491204A (en
Inventor
孙临瑞
金敬跃
何世超
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上海三一科技有限公司
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Priority to CN201110436431.9A priority Critical patent/CN102491204B/en
Publication of CN102491204A publication Critical patent/CN102491204A/en
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Publication of CN102491204B publication Critical patent/CN102491204B/en

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Abstract

The invention discloses an auxiliary jib lifting device of a crawler crane. The auxiliary jib lifting device comprises a tensile force sensor, an angle sensor and a multilevel oil cylinder, wherein the tensile force sensor is arranged on a jib head of a luffing jib frame and is used for measuring a luffing tensile force of the luffing jib frame, the angle sensor is arranged on the luffing jib frame and is used for measuring an included angle between the luffing jib frame and a horizontal plane, one end of the multilevel oil cylinder is arranged on a lower-joint jib of the luffing jib frame, and the other end of the multilevel oil cylinder is in contact with the ground or suspended. The auxiliary jib lifting device of the crawler crane, disclosed by the invention, has a simple structure and reliable functions, and also has the advantages of being capable of effectively reducing requirements on jib lifting capability required by a main luffing mechanism, smoothly completing a jib lifting operation facilitating reasonable configuration of resources, and reducing energy waste.

Description

Crawler crane has been assisted arm assembly and an arm method and has been comprised the hoisting crane of this device

Technical field

The present invention relates to arm technical field, related in particular to the hoisting crane that a kind of crawler crane has been assisted arm assembly and an arm method and comprised this device.

Background technology

Crawler crane because of its can be with carrying walking, scope of work is wide, load-carrying ability is strong, camp site efficiency advantages of higher is widely used in the industries such as oil, chemical industry, electric power, metallurgy and heavy construction, bridge, shipbuilding lifting operation.In recent years, for meeting the market requirement, the development of large-tonnage crawler crane was very rapid, large-tonnage crawler crane hang loading capability and highly large, thereby large-tonnage crawler crane boom length is very long, jib deadweight is very heavy, when jib plays arm process, play arm strength square large.At present, the arm work of crawler crane is mainly to be completed by main luffing mechanism, and this just requires main transformer width mechanism that enough strong hoisting capacity can be provided.

Summary of the invention

For the problem of above-mentioned existence, the object of this invention is to provide a kind of crawler crane and assisted arm assembly, assisted jib to hoist, make jib oil cylinder in the process that plays arm that maximum moment can be provided; Another object of the present invention is to provide a kind of arm method that rises based on above-mentioned arm assembly; Of the present invention also have an object to be to provide the hoisting crane that comprises said apparatus.

The object of the invention is to be achieved through the following technical solutions:

A kind of crawler crane has been assisted arm assembly, wherein, comprise pulling force sensor, angular transducer and multi-stage oil cylinder, described pulling force sensor is installed on the arm head of luffing jib, for measuring the luffing pulling force on described luffing jib, described angular transducer is positioned on described luffing jib, for measuring angle between described luffing jib and horizontal surface, one end of described multi-stage oil cylinder is positioned on the lower joint arm of described luffing jib, and the other end contacts with ground.

The above-mentioned arm assembly that rises of having assisted arm assembly, wherein, arranges a steering hardware in the lower end of described multi-stage oil cylinder, makes thrust that described multi-stage oil cylinder provides all the time perpendicular to described luffing jib.

The above-mentioned arm assembly that rises of having assisted arm assembly, wherein, described steering hardware is a plate body, the lower end of described multi-stage oil cylinder is connected to the upper surface of described plate body by bearing rotary.

The invention also discloses a kind of above-mentioned arm method that rises of having assisted arm assembly that comprises, wherein, comprise the following steps:

According to actual condition, set pulling force predetermined value;

Main transformer width elevator starts, and starts to strain main variable-amplitude steel wire rope, shows in real time luffing pulling force on pulling force sensor;

Judge on pulling force sensor, whether displayed value reaches pulling force predetermined value, if reach, multi-stage oil cylinder is started working, and under multi-stage oil cylinder and the combined action of main transformer width, luffing jib has started arm;

By angular transducer, luffing jib angle is carried out to Real-Time Monitoring, when luffing jib arrives certain angle, main luffing mechanism provides moment to meet the required moment of arm, and multi-stage oil cylinder is along with luffing jib rises and stretches out, until luffing jib arrives assigned address.

The present invention also provides a kind of hoisting crane, comprise luffing jib, wherein, also comprise the arm assembly of having assisted as described in above-mentioned any one, described pulling force sensor is installed on the arm head of described luffing jib, described angular transducer is positioned on described luffing jib, and one end of described multi-stage oil cylinder is positioned on the lower joint arm of luffing jib.

Compared with the prior art, beneficial effect of the present invention is:

Simple in structure, reliable in function, can effectively reduce the required arm Capability Requirement of main luffing mechanism, has completed smoothly arm work, is beneficial to reasonable disposition resource, reduces energy dissipation.

Accompanying drawing explanation

Fig. 1 a is that crawler crane of the present invention has been assisted arm assembly and played arm method and comprise and assist the structural representation of arm assembly before an arm in the hoisting crane of this device;

Fig. 1 b is that crawler crane of the present invention has been assisted arm assembly and played arm method and comprise and assist the structural representation of arm assembly when arm in the hoisting crane of this device;

Fig. 2 is that crawler crane of the present invention has been assisted arm assembly and played arm method and comprise the schematic flow sheet that plays arm method in the hoisting crane of this device.

The specific embodiment

Below in conjunction with schematic diagram and concrete operations embodiment, the invention will be further described.

A kind of crawler crane of the present invention has been assisted arm assembly, shown in Fig. 1 a and Fig. 1 b, comprise pulling force sensor, angular transducer and multi-stage oil cylinder 2, pulling force sensor and angular transducer all do not mark in the drawings, pulling force sensor is installed on the arm head of luffing jib 1, for measuring the luffing pulling force on luffing jib 1, angular transducer is positioned on luffing jib 1, for measuring angle between luffing jib 1 and horizontal surface.One end of multi-stage oil cylinder 2 is positioned on the lower joint arm of luffing jib 1, and the other end contacts with ground.

Continuation, referring to shown in Fig. 1 a and Fig. 1 b, arranges a steering hardware 21 in the lower end of multi-stage oil cylinder 2, make thrust that multi-stage oil cylinder 2 provides all the time perpendicular to luffing jib 1.Steering hardware 21 is specifically as follows a plate body, and the lower end of multi-stage oil cylinder 2 is the upper surface at plate body by mode rotary connections such as bearings.

The present invention has assisted the arm method that rises of arm assembly, specifically comprise the following steps, flow process schematic block as shown in Figure 2:

According to actual condition, set pulling force predetermined value, play the front constitution diagram of arm as shown in Figure 1a;

Main transformer width elevator starts, and starts to strain main variable-amplitude steel wire rope, shows in real time luffing pulling force on pulling force sensor;

Judge on pulling force sensor, whether displayed value reaches pulling force predetermined value, if reach, multi-stage oil cylinder 2 is started working, and under multi-stage oil cylinder 2 and the combined action of main transformer width, luffing jib 1 has started arm, luffing jib 1 constitution diagram in an arm process as shown in Figure 1 b;

By angular transducer, luffing jib 1 angle is carried out to Real-Time Monitoring, when luffing jib 1 arrives certain angle, main luffing mechanism provides moment to meet the required moment of arm, and multi-stage oil cylinder 2 is along with luffing jib 1 rises and stretches out, until luffing jib 1 arrives assigned address.

The present invention also provides a kind of hoisting crane, comprise luffing jib 1, wherein, due in this hoisting crane assisted arm assembly and prior art distinct, other parts are not drawn, those skilled in the art can grasp to adopt in conjunction with prior art and comprise above-mentioned other parts of having assisted the hoisting crane of arm assembly, do not repeat them here.

Above specific embodiments of the invention be have been described in detail, but the present invention is not restricted to specific embodiment described above, it is just as example.To those skilled in the art, any equivalent modifications and alternative also all among category of the present invention.Therefore, equalization conversion and the modification done without departing from the spirit and scope of the invention, all should contain within the scope of the invention.

Claims (1)

1. a crawler crane has been assisted the arm method that rises of arm assembly, described crawler crane has assisted arm assembly to comprise pulling force sensor, angular transducer and multi-stage oil cylinder, described pulling force sensor is installed on the arm head of luffing jib, for measuring the luffing pulling force on described luffing jib, described angular transducer is positioned on described luffing jib, be used for measuring angle between described luffing jib and horizontal surface, one end of described multi-stage oil cylinder is positioned on the lower joint arm of described luffing jib, the other end contacts with ground, it is characterized in that, described arm method comprises the following steps:
According to actual condition, set pulling force predetermined value;
Main transformer width elevator starts, and starts to strain main variable-amplitude steel wire rope, shows in real time luffing pulling force on pulling force sensor;
Judge on pulling force sensor, whether displayed value reaches pulling force predetermined value, if reach, multi-stage oil cylinder is started working, and under multi-stage oil cylinder and main luffing mechanism combined action, luffing jib has started arm;
By angular transducer, luffing jib angle is carried out to Real-Time Monitoring, when luffing jib arrives certain angle, main luffing mechanism provides moment to meet the required moment of arm, and multi-stage oil cylinder is along with luffing jib rises and stretches out, until luffing jib arrives assigned address.
CN201110436431.9A 2011-12-23 2011-12-23 Auxiliary jib lifting device of crawler crane and crane comprising auxiliary jib lifting device CN102491204B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110436431.9A CN102491204B (en) 2011-12-23 2011-12-23 Auxiliary jib lifting device of crawler crane and crane comprising auxiliary jib lifting device

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Application Number Priority Date Filing Date Title
CN201110436431.9A CN102491204B (en) 2011-12-23 2011-12-23 Auxiliary jib lifting device of crawler crane and crane comprising auxiliary jib lifting device

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CN102491204A CN102491204A (en) 2012-06-13
CN102491204B true CN102491204B (en) 2014-07-23

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CN108715410A (en) * 2018-08-08 2018-10-30 浙江三装备有限公司 A kind of crawler crane tower condition intelligence cantilever lifting falls arm control device and control method

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CN102583177B (en) * 2012-02-22 2015-03-18 上海三一科技有限公司 Auxiliary boom raising device of crawler crane and crane comprising same
CN103935907B (en) * 2014-05-13 2016-08-24 徐工集团工程机械股份有限公司 A kind of crawler crane
JP2019031340A (en) * 2015-11-26 2019-02-28 株式会社タダノ Assembled state confirmation device of luffing jib
CN106542445B (en) * 2016-12-24 2018-10-23 中国一冶集团有限公司 Crawler crane controllable type Weighting system
CN108358072B (en) * 2018-02-11 2019-07-16 哈尔滨工业大学 A kind of the auxiliary hanging device and control method of climbing robot

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CN101659378A (en) * 2009-08-27 2010-03-03 三一汽车制造有限公司 Lift and superlift device thereof
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CN101659378A (en) * 2009-08-27 2010-03-03 三一汽车制造有限公司 Lift and superlift device thereof
CN102205937A (en) * 2011-03-28 2011-10-05 徐州重型机械有限公司 High-altitude work engineering machine and arm support device thereof
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CN108715410A (en) * 2018-08-08 2018-10-30 浙江三装备有限公司 A kind of crawler crane tower condition intelligence cantilever lifting falls arm control device and control method

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Effective date of registration: 20160108

Address after: Eight in the 313028 Zhejiang city of Huzhou province Cao Zhen Village daily standard factory Auxiliary Building No. 2

Patentee after: Zhejiang Sany Equipment Co., Ltd.

Address before: 201202, room 6999, 205 Chuansha Road, Shanghai, Pudong New Area

Patentee before: Shanghai Sany Technology Co., Ltd.