CN102491204A - 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
CN102491204A
CN102491204A CN2011104364319A CN201110436431A CN102491204A CN 102491204 A CN102491204 A CN 102491204A CN 2011104364319 A CN2011104364319 A CN 2011104364319A CN 201110436431 A CN201110436431 A CN 201110436431A CN 102491204 A CN102491204 A CN 102491204A
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CN
China
Prior art keywords
jib
luffing
arm
oil cylinder
pulling force
Prior art date
Application number
CN2011104364319A
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Chinese (zh)
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CN102491204B (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
Application granted granted Critical
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 to reach the arm method and has been comprised the hoisting crane of this device

Technical field

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

Background technology

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

Summary of the invention

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

The objective of the invention is to realize through following technical proposals:

A kind of crawler crane has been assisted arm assembly, wherein, comprises pulling force sensor, angular transducer and multi-stage oil cylinder; Said pulling force sensor is installed on the arm head of luffing jib; Be used to measure the luffing pulling force on the said luffing jib, said angular transducer is positioned on the said luffing jib, is used to measure angle between said luffing jib and the horizontal surface; One end of said multi-stage oil cylinder is positioned on the following joint arm of said luffing jib, and the other end contacts with ground or be unsettled.

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

The above-mentioned arm assembly that rises of having assisted arm assembly, wherein, said steering hardware is a plate body, the lower end of said multi-stage oil cylinder is through the upper surface of bearing rotary connection at said plate body.

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:

Set the pulling force predetermined value according to actual condition;

Main transformer width of cloth elevator starts, and begins to strain main transformer width of cloth steel rope, shows the luffing pulling force on the pulling force sensor in real time;

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

By angular transducer the jib angle is monitored in real time, when jib arrival certain angle, main transformer width of cloth mechanism provides moment to satisfy the required moment of arm, and multi-stage oil cylinder rises along with jib and stretches out, and arrives assigned address up to jib.

The present invention also provides a kind of hoisting crane; Comprise the luffing jib; Wherein, also comprise said stating on the arm head that pulling force sensor is installed on said luffing jib like above-mentioned any described arm assembly of having assisted; Said angular transducer is positioned on the said luffing jib, and an end of said multi-stage oil cylinder is positioned on the following joint arm of luffing arm.

Compared with present technology, beneficial effect of the present invention is:

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

Description of drawings

Fig. 1 a is that crawler crane of the present invention has been assisted arm assembly to reach the arm method and comprised and assisted the structural representation of arm assembly before playing arm in the hoisting crane of this device;

Fig. 1 b is that crawler crane of the present invention has been assisted arm assembly to reach the arm method and comprised and assisted the structural representation of arm assembly when playing arm in the hoisting crane of this device;

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

The specific embodiment

Below in conjunction with schematic diagram and concrete operations embodiment the present invention is described further.

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; Be used to measure the luffing pulling force on the luffing jib 1, angular transducer is positioned on the luffing jib 1, is used to measure angle between luffing jib 1 and the horizontal surface.One end of multi-stage oil cylinder 2 is positioned on the following joint arm of luffing jib 1, and the other end contacts with ground or be unsettled.

Continuation is provided with a steering hardware 21 referring to shown in Fig. 1 a and Fig. 1 b in the lower end of multi-stage oil cylinder 2, makes thrust that multi-stage oil cylinder 2 provides all the time perpendicular to luffing jib 1.Steering hardware 21 specifically can be a plate body, and the lower end of multi-stage oil cylinder 2 is through the upper surface of mode rotary connections such as bearing at plate body.

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

Set the pulling force predetermined value according to actual condition, play the preceding constitution diagram of arm shown in Fig. 1 a;

Main transformer width of cloth elevator starts, and begins to strain main transformer width of cloth steel rope, shows the luffing pulling force on the pulling force sensor in real time;

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

By angular transducer the jib angle is monitored in real time, when luffing jib 1 arrival certain angle, main transformer width of cloth mechanism provides moment to satisfy the required moment of arm, and multi-stage oil cylinder 2 rises along with luffing jib 1 and stretches out, and arrives assigned address up to the luffing jib.

The present invention also provides a kind of hoisting crane; Comprise luffing jib 1; Wherein, owing to assisted arm assembly and prior art distinct in this hoisting crane, other parts are not drawn; Those skilled in the art can combine prior art to grasp employing and comprise above-mentioned other parts of having assisted the hoisting crane of arm assembly, do not repeat them here.

More than specific embodiment of the present invention is described in detail, but the present invention is not restricted to the specific embodiment of above description, 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, not breaking away from impartial conversion and the modification of having done under the spirit and scope of the present invention, all should contain within the scope of the invention.

Claims (5)

1. a crawler crane has been assisted arm assembly, it is characterized in that, comprises pulling force sensor, angular transducer and multi-stage oil cylinder; Said pulling force sensor is installed on the arm head of luffing jib; Be used to measure the luffing pulling force on the said luffing jib, said angular transducer is positioned on the said luffing jib, is used to measure angle between said luffing jib and the horizontal surface; One end of said multi-stage oil cylinder is positioned on the following joint arm of said luffing jib, and the other end contacts with ground or be unsettled.
2. crawler crane as claimed in claim 1 has been assisted arm assembly, it is characterized in that, in the lower end of said multi-stage oil cylinder one steering hardware is set, and makes thrust that said multi-stage oil cylinder provides all the time perpendicular to said luffing jib.
3. crawler crane as claimed in claim 2 has been assisted arm assembly, it is characterized in that, said steering hardware is a plate body, and the lower end of said multi-stage oil cylinder is through the upper surface of bearing rotary connection at said plate body.
4. like any described arm method that rises of having assisted arm assembly in the claim 1 to 3, it is characterized in that, comprise the following steps:
Set the pulling force predetermined value according to actual condition;
Main transformer width of cloth elevator starts, and begins to strain main transformer width of cloth steel rope, shows the luffing pulling force on the pulling force sensor in real time;
Judge whether displayed value reaches the pulling force predetermined value on the pulling force sensor, if reach, multi-stage oil cylinder is started working, and under multi-stage oil cylinder and the combined action of the main transformer width of cloth, jib has begun arm;
By angular transducer the jib angle is monitored in real time, when jib arrival certain angle, main transformer width of cloth mechanism provides moment to satisfy the required moment of arm, and multi-stage oil cylinder rises along with jib and stretches out, and arrives assigned address up to jib.
5. hoisting crane; Comprise the luffing jib; It is characterized in that, also comprise, said stating on the arm head that pulling force sensor is installed on said luffing jib like any described arm assembly of having assisted in the claim 1 to 3; Said angular transducer is positioned on the said luffing jib, and an end of said multi-stage oil cylinder is positioned on the following joint arm of luffing arm.
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

Applications Claiming Priority (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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CN102491204B CN102491204B (en) 2014-07-23

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102583177A (en) * 2012-02-22 2012-07-18 上海三一科技有限公司 Auxiliary boom raising device of crawler crane and crane comprising same
CN103935907A (en) * 2014-05-13 2014-07-23 徐工集团工程机械股份有限公司 Crawling crane
CN106542445A (en) * 2016-12-24 2017-03-29 中国冶集团有限公司 Crawler crane controllable type Weighting system
WO2017090688A1 (en) * 2015-11-26 2017-06-01 株式会社タダノ Device for verifying state of assembly of luffing jib
CN108358072A (en) * 2018-02-11 2018-08-03 哈尔滨工业大学 A kind of the auxiliary hanging device and control method of climbing robot

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108715410B (en) * 2018-08-08 2019-12-24 浙江三一装备有限公司 Intelligent arm lifting and arm falling control device and control method for tower condition of crawler crane

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JP2009281077A (en) * 2008-05-23 2009-12-03 Kobelco Cranes Co Ltd Construction machine
CN101618837A (en) * 2009-07-21 2010-01-06 上海三一科技有限公司 Installation method and device of caterpillar crane mast
CN101659378A (en) * 2009-08-27 2010-03-03 三一汽车制造有限公司 Lift and superlift device thereof
CN201729640U (en) * 2010-07-15 2011-02-02 徐州重型机械有限公司 Engineering vehicle and arm frame support 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
CN102275833A (en) * 2011-05-26 2011-12-14 长沙中联重工科技发展股份有限公司 Crane, and suspension arm structure and arm lifting method thereof

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Publication number Priority date Publication date Assignee Title
JP2009281077A (en) * 2008-05-23 2009-12-03 Kobelco Cranes Co Ltd Construction machine
CN101618837A (en) * 2009-07-21 2010-01-06 上海三一科技有限公司 Installation method and device of caterpillar crane mast
CN101659378A (en) * 2009-08-27 2010-03-03 三一汽车制造有限公司 Lift and superlift device thereof
CN201729640U (en) * 2010-07-15 2011-02-02 徐州重型机械有限公司 Engineering vehicle and arm frame support 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
CN102275833A (en) * 2011-05-26 2011-12-14 长沙中联重工科技发展股份有限公司 Crane, and suspension arm structure and arm lifting method thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102583177A (en) * 2012-02-22 2012-07-18 上海三一科技有限公司 Auxiliary boom raising device of crawler crane and crane comprising same
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
CN103935907A (en) * 2014-05-13 2014-07-23 徐工集团工程机械股份有限公司 Crawling crane
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
WO2017090688A1 (en) * 2015-11-26 2017-06-01 株式会社タダノ Device for verifying state of assembly of luffing jib
CN106542445A (en) * 2016-12-24 2017-03-29 中国冶集团有限公司 Crawler crane controllable type Weighting system
CN108358072A (en) * 2018-02-11 2018-08-03 哈尔滨工业大学 A kind of the auxiliary hanging device and control method of climbing robot
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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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.