CN202808224U - Landing leg structure for improving trafficability characteristic of lorry-mounted crane - Google Patents

Landing leg structure for improving trafficability characteristic of lorry-mounted crane Download PDF

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Publication number
CN202808224U
CN202808224U CN201220422119.4U CN201220422119U CN202808224U CN 202808224 U CN202808224 U CN 202808224U CN 201220422119 U CN201220422119 U CN 201220422119U CN 202808224 U CN202808224 U CN 202808224U
Authority
CN
China
Prior art keywords
landing leg
leg cylinder
hook
cylinder barrel
lorry
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
CN201220422119.4U
Other languages
Chinese (zh)
Inventor
李文峰
周波
张腾
孙文涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xuzhou XCMG Truck Mounted Crane Co Ltd
Original Assignee
Xuzhou XCMG Truck Mounted Crane Co Ltd
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
Publication date
Application filed by Xuzhou XCMG Truck Mounted Crane Co Ltd filed Critical Xuzhou XCMG Truck Mounted Crane Co Ltd
Priority to CN201220422119.4U priority Critical patent/CN202808224U/en
Application granted granted Critical
Publication of CN202808224U publication Critical patent/CN202808224U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a landing leg structure for improving trafficability characteristic of a lorry-mounted crane, and belongs to the landing leg structure of engineering machinery. The landing leg structure comprises a movable landing leg, a landing leg pin shaft assembly, a hook pin shaft assembly, a hook, a landing leg cylinder barrel and a landing leg cylinder lever, wherein the landing leg cylinder lever is arranged at the end part of the movable landing leg through the landing leg pin shaft assembly; the hook is arranged at the side of the end part of the movable landing leg through the hook pin shaft assembly; the landing leg cylinder lever is arranged inside the landing leg cylinder barrel, and a hanging shaft is welded on the outer cylindrical surface of the landing leg cylinder barrel. The landing leg cylinder lever retracts until supporting force is hardly provided when the landing leg cylinder lever is converted into transportation from an operating condition; the pin shaft assembly is taken off, the landing leg cylinder lever extends out, and the landing leg cylinder barrel moves upwards because the landing leg cylinder lever contacts the ground; the hook rotates to hook the hanging shaft welded on the outer cylindrical surface of the landing leg cylinder barrel after achieving a certain height; and finally the landing leg cylinder lever retracts to a shrinking position. Therefore, the terrain clearance of the transportation state of the landing leg cylinder is increased, and the problem that the trafficability characteristic of the lorry-mounted crane is affected by the landing leg is also solved.

Description

A kind of raising lorry-mounted crane crossing ability leg structure
Technical field
The utility model relates to a kind of leg structure of construction machinery and equipment, particularly a kind of raising lorry-mounted crane crossing ability leg structure.
Background technology
Lorry-mounted crane and other multiple movable crane all are equipped with leg structure, and the Main Function of leg structure is by increasing the support interval of hoisting crane support, improving stability and the load-carrying ability of hoisting crane.When operation, land supporting leg is overhanging, the hoisting crane lifting is liftoff; In motion, supporting leg is regained.Yet the increase of leg structure will certainly have influence on the crossing ability of lorry-mounted crane, and multiple like this raising lorry-mounted crane crossing ability leg structure arises at the historic moment.Main solution is exactly to adopt mechanism arrangement to utilize the retraction force of support oil cylinder that support oil cylinder is overturn at present.And the turnover leg structure of this support oil cylinder is stressed bad, and is no longer applicable for heavy tonnage lorry-mounted crane.
The utility model content
The purpose of this utility model is that a kind of raising lorry-mounted crane crossing ability leg structure will be provided, the problem that affected by supporting leg to solve the heavy tonnage lorry-mounted crane crossing ability.
The purpose of this utility model is achieved in that this leg structure comprises: movable supporting legs, leg pin assembly, hanger pin axle assembly, hook, supporting leg cylinder barrel and supporting leg cylinder bar; The supporting leg cylinder barrel is installed in the movable supporting legs end by the leg pin assembly, and hook is installed in the movable supporting legs end sides by the hanger pin axle assembly, and supporting leg cylinder bar is contained in the supporting leg cylinder barrel.
Be welded with hanging scroll on the described supporting leg cylinder barrel external cylindrical surface.
Beneficial effect: owing to adopted such scheme, the supporting leg cylinder barrel is installed in the movable supporting legs end by the leg pin assembly, take away the leg pin assembly after, the supporting leg cylinder barrel can be at movable supporting legs end up-and-down movement; Hook is installed in the movable supporting legs end sides by the hanger pin axle assembly, and hook can rotate around the hanger pin axle assembly; Supporting leg cylinder bar is contained in the supporting leg cylinder barrel, within it up-and-down movement.When transferring transportation to from operating condition, supporting leg cylinder bar is bounced back to the power that provides support hardly, then the bearing pin assembly is taken away, stretch out again supporting leg cylinder bar, this moment, the supporting leg cylinder barrel was with upward movement, after arriving certain altitude owing to supporting leg cylinder bar kiss the earth, Rotary hanging hook tangles the hanging scroll that welds on the supporting leg cylinder barrel external cylindrical surface, and the supporting leg cylinder bar that bounces back at last is to full reduced position.To increase like this terrain clearance of supporting leg cylinder travelling position, solve the problem that the lorry-mounted crane crossing ability is affected by supporting leg, reach the purpose of this utility model.
Advantage: by using this raising lorry-mounted crane crossing ability leg structure, when hoisting crane is in travelling position, leg structure will no longer affect the crossing ability of hoisting crane.
Description of drawings
Fig. 1 is constructional drawing of the present utility model.
Fig. 2 is working state figure of the present utility model.
Fig. 3 is travelling position figure of the present utility model.
Among the figure, 1, movable supporting legs; 2, leg pin assembly; 3, hanger pin axle assembly; 4, hook; 5, supporting leg cylinder barrel; 6, supporting leg cylinder bar.
The specific embodiment
Embodiment 1: this leg structure comprises: movable supporting legs 1, leg pin assembly 2, hanger pin axle assembly 3, hook 4, supporting leg cylinder barrel 5 and supporting leg cylinder bar 6.Supporting leg cylinder barrel 5 is installed in movable supporting legs 1 end by leg pin assembly 2, and hook 4 is installed in movable supporting legs 1 end sides by hanger pin axle assembly 3, and supporting leg cylinder bar 6 is contained in the supporting leg cylinder barrel 5.
Be welded with hanging scroll on described supporting leg cylinder barrel 5 external cylindrical surfaces.

Claims (2)

1. raising lorry-mounted crane crossing ability leg structure, it is characterized in that: this leg structure comprises: movable supporting legs, leg pin assembly, hanger pin axle assembly, hook, supporting leg cylinder barrel and supporting leg cylinder bar; The supporting leg cylinder barrel is installed in the movable supporting legs end by the leg pin assembly, and hook is installed in the movable supporting legs end sides by the hanger pin axle assembly, and supporting leg cylinder bar is contained in the supporting leg cylinder barrel.
2. a kind of raising lorry-mounted crane crossing ability leg structure according to claim 1 is characterized in that: be welded with hanging scroll on the described supporting leg cylinder barrel external cylindrical surface.
CN201220422119.4U 2012-08-24 2012-08-24 Landing leg structure for improving trafficability characteristic of lorry-mounted crane Expired - Lifetime CN202808224U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201220422119.4U CN202808224U (en) 2012-08-24 2012-08-24 Landing leg structure for improving trafficability characteristic of lorry-mounted crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201220422119.4U CN202808224U (en) 2012-08-24 2012-08-24 Landing leg structure for improving trafficability characteristic of lorry-mounted crane

Publications (1)

Publication Number Publication Date
CN202808224U true CN202808224U (en) 2013-03-20

Family

ID=47867145

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201220422119.4U Expired - Lifetime CN202808224U (en) 2012-08-24 2012-08-24 Landing leg structure for improving trafficability characteristic of lorry-mounted crane

Country Status (1)

Country Link
CN (1) CN202808224U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107934792A (en) * 2017-12-29 2018-04-20 徐州徐工随车起重机有限公司 A kind of lorry-mounted crane vertical leg locking and detecting system
CN108839524A (en) * 2018-07-19 2018-11-20 河南沈缆电缆有限责任公司 A kind of transfer car(buggy) with high-intensitive chain-plate type antiskid chain

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107934792A (en) * 2017-12-29 2018-04-20 徐州徐工随车起重机有限公司 A kind of lorry-mounted crane vertical leg locking and detecting system
CN108839524A (en) * 2018-07-19 2018-11-20 河南沈缆电缆有限责任公司 A kind of transfer car(buggy) with high-intensitive chain-plate type antiskid chain

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20130320

CX01 Expiry of patent term