CN202022678U - Connecting device of crane jib and crane with same - Google Patents

Connecting device of crane jib and crane with same Download PDF

Info

Publication number
CN202022678U
CN202022678U CN2010206966253U CN201020696625U CN202022678U CN 202022678 U CN202022678 U CN 202022678U CN 2010206966253 U CN2010206966253 U CN 2010206966253U CN 201020696625 U CN201020696625 U CN 201020696625U CN 202022678 U CN202022678 U CN 202022678U
Authority
CN
China
Prior art keywords
drag
line
arm
tie
crane
Prior art date
Application number
CN2010206966253U
Other languages
Chinese (zh)
Inventor
杨威
马芬芬
丁慧智
何光辉
Original Assignee
长沙中联重工科技发展股份有限公司
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 长沙中联重工科技发展股份有限公司 filed Critical 长沙中联重工科技发展股份有限公司
Priority to CN2010206966253U priority Critical patent/CN202022678U/en
Application granted granted Critical
Publication of CN202022678U publication Critical patent/CN202022678U/en

Links

Abstract

The utility model provides a connecting device of a crane jib and a crane with the same. The crane comprises a derrick, a jib and a pulling plate. The connecting device comprises a first inhaul cable and a second inhaul cable. One end of the first inhaul cable is connected with the pulling plate, and the other end of the first inhaul cable is connected with the jib. The pulling plate and the jib are connected through the second inhaul cable. The connecting device of the crane jib and the crane with the connecting device can satisfy the requirement for stability of the whole crane, simultaneously can improve the connecting length of the jib, and can prevent the jib from being damaged due to the overlarge deflection, thereby avoiding accidents.

Description

The connecting device of crane arm and have a kind of hoisting crane of this connecting device
Technical field
The utility model relates to the crawler crane field, relates to a kind of connecting device of crane arm particularly and has a kind of hoisting crane of this connecting device.
Background technology
At present, in the crawler crane of prior art, when mast plays arm, in order to solve the excessive problem of arm self, usually adopt single drag-line (also claiming the waist rope), wherein the upper end of single drag-line is connected to the support of arm-tie by bearing pin, and the lower end is connected to arm by bearing pin.But the defective that exists in the prior art is that in order to satisfy the requirement of complete machine stability, the syndeton length of arm has been subjected to the restriction of arm self sag.
Yet along with the continuous increase of crawler crane design and making tonnage, the arm syndeton length is more and more longer.How to resolve when mast plays arm, amount of deflection is excessive is damaged with accidents caused problem because of self for arm, is crawler crane design-calculated difficult point always.
The utility model content
The technical problems to be solved in the utility model is to provide a kind of connecting device of crane arm and has a kind of hoisting crane of this connecting device, can be under the situation that satisfies the complete machine stability requirement, increase the syndeton length of arm, and can avoid being damaged with accidents caused problem because of arm self amount of deflection is excessive.
A kind of connecting device of crane arm is provided according to an aspect of the present utility model, described hoisting crane comprises mast, arm and arm-tie, described connecting device comprises first drag-line, one end of described first drag-line is connected to described arm-tie and the other end is connected to described arm, and described connecting device further comprises second drag-line that connects described arm-tie and described arm.
Further, on the described arm rope pulley was installed, an end of described second drag-line is connected to described arm-tie and the other end is walked around the described rope pulley of crossing and is connected to described mast.
Further, described arm-tie is installed with first installation bracket that corresponds respectively to described first drag-line and described second drag-line and have connecting bore, and is installed with second installation bracket that corresponds respectively to described first drag-line and described second drag-line and have connecting bore on described arm.
Further, the upper end of each in described first drag-line and described second drag-line is formed with upper end hole, pass each upper end hole in described first drag-line and described second drag-line by bearing pin and be connected in described first installation bracket on the described arm-tie corresponding one, the lower end of each in described first drag-line and described second drag-line is formed with down stomidium, connects by bearing pin each the lower end in described first drag-line and described second drag-line is connected in described second installation bracket of described arm corresponding one.
Further, described arm-tie is installed with first installation bracket with holes that corresponds respectively to described first drag-line and described second drag-line, and is installed with second installation bracket with holes corresponding to described first drag-line on described arm.
Further comprise the support that is arranged between described first drag-line or second drag-line and the described arm-tie.
Further comprise and be arranged on described first drag-line or second drag-line and described arm-tie or/and the support between the jib.
Further comprise the support that is arranged between described first drag-line or second drag-line and the described arm.
Further, described connecting device comprises with respect to two described first drag-lines that are symmetrically distributed with respect to the axis of length direction of described arm and/or two described second drag-lines being symmetrically distributed with respect to the axis with respect to length direction of described arm.
Further, described support is the rod like parts that two ends are formed with bracket holes respectively.
Further, described first drag-line and/or described second drag-line are steel ropes.
Provide a kind of hoisting crane according to another aspect of the present utility model, comprise above-mentioned connecting device.
According to the connecting device of crane arm of the present utility model, can under the situation that satisfies the complete machine stability requirement, increase the syndeton length of arm, and can avoid being damaged with accidents caused problem because of arm self amount of deflection is excessive.
Description of drawings
In order fully to disclose the utility model, make those skilled in the art can realize the utility model according to the record of specification sheets, the spy provides the following drawings, and in conjunction with the accompanying drawings the utility model is had been described in detail.But accompanying drawing and respective embodiments explanation only are for illustrative purposes, but not are used to limit the utility model.
Fig. 1 shows the scheme drawing that is installed in the two rope linkage couplings on the crawler crane boom.
Fig. 2 is the partial enlarged drawing at the C place among Fig. 1.
Fig. 3 be A among Fig. 1 to view, it shows the connection structure of second drag-line in two rope linkage couplings among Fig. 1.
Fig. 4 be B among Fig. 1 to view, it shows the connection structure of first drag-line in two rope linkage couplings among Fig. 1.
The specific embodiment
Specifically describe preferred embodiment of the present utility model with reference to the accompanying drawings.
With reference to accompanying drawing 1, show the two rope linkage couplings that are installed on the crawler crane boom, wherein, crawler crane comprises mast 50, arm 10, arm-tie 40.Wherein, the upper end of mast 50 is fixed in the upper end of arm-tie 40, and the free end of arm 10 is fixed in the lower end of arm-tie 40.Mast 50 passes through arm-tie 40 with arm 10 pull-ups.
Comprise two groups of drag-lines (being also referred to as first drag-line 30 and second drag-line 20) according to of the present utility model pair of rope linkage coupling, first drag-line 30 and second drag-line 20 can be steel rope (or steel rope drag-lines), also can be other can load-bearing the rope form parts.See also Fig. 3 and Fig. 4,, be installed with the installation bracket 42,43 of band connecting bore, and on arm 10, be installed with the installation bracket 31 of band connecting bore at the side of arm-tie 40 for drag-line being installed between arm-tie 40 and the arm 10.The lengthwise position of this installation bracket 42,43 on arm-tie 40 is corresponding to the position that second drag-line 30 and first drag-line 20 will be installed, and this installation bracket 31 position on arm 10 is corresponding to the position that first drag-line 20 will be installed.The position corresponding to second drag-line 20 will be installed on arm 10 was provided with rope pulley 21.In the utility model, there is no particular limitation for the shape of installation bracket 42,43,31 and structure, as long as provide the hole that drag-line can be installed for arm-tie 40 or arm 10.
Introduce first drag-line 30 earlier.The installation constitution of first drag-line 30 is illustrated in the accompanying drawing 3.With reference to accompanying drawing 3 as seen, first drag-line 30 comprises that 301,302, two steel rope drag-lines 301,302 of two steel rope drag-lines are symmetrically distributed with respect to the axis of its length direction.The top and bottom of drag-line 301 are formed with upper end hole 3012 and following stomidium 3013 respectively, and the top and bottom of drag-line 302 are formed with upper end hole (figure is mark not) and following stomidium (figure is mark not) respectively.Can be connected to arm-tie 40 by the upper end that bearing pin connects drag-line 301, for example, pass the upper end hole 3012 of drag-line 301 and the connecting bore on the installation bracket 43 on the arm-tie 40 by pin.Equally, the lower end that connects drag-line 301 by bearing pin is connected to arm 10.Similarly, can be by the way the top and bottom of drag-line 302 be connected to arm-tie 40 and arm 10 respectively.
When the length of drag-line 301,302 and the distance between arm-tie 40 and the arm 10 (for example do not match, the length of drag-line is less than the distance between arm-tie and the arm) time, utilize one or more supports to adjust the length of drag-line, promptly bring in the length that prolongs drag-line by support being connected one of drag-line, support can be arranged between jib 10 and the drag-line 301,302, perhaps also can be arranged between arm-tie 40 and the drag-line 301,302.Wherein, support is a rod like parts, and its two ends are formed with bracket holes respectively, can support is connected with drag-line or support is connected with arm-tie by the bearing pin connection mode.Shown in Figure 3, utilize two supports 32 to be connected the upper end of drag-line 301 to prolong the length of drag-line 301.
Introduce second drag-line 20 now.The installation constitution of second drag-line 20 is illustrated in the accompanying drawing 4.With reference to accompanying drawing 4 as seen, second drag-line 20 comprises that 201,202, two steel rope drag-lines of two steel rope drag-lines are symmetrically distributed with respect to the axis of its length direction.The upper end of steel rope drag-line 201 is formed with upper end hole 2012, and the upper end of steel rope drag-line 202 also is formed with upper end hole (figure is mark not).Can connect the carriage 42 (also promptly, being connected to arm-tie) that the upper end of drag-line 201,202 is connected to arm-tie 40 by bearing pin, for example, pass the upper end hole 2012 of drag-line 201 and the connecting bore on the installation bracket 42 on the arm-tie 40 by pin.The lower end of drag-line 201,202 is walked around and is fixed in being connected on the mast 50 behind the rope pulley 21 excessively on the arm 10, can certainly be connected on the miscellaneous part, for example turntable.Fig. 2 shows the lower end of being fixed in the concrete structure of crossing rope pulley 21 on the arm 10 and also showing drag-line 201,202 and passes the situation that this crosses rope pulley 21.
The utility model has solved problems of the prior art by above-mentioned structure, can increase the syndeton length of arm under the situation that satisfies the complete machine stability requirement, and has avoided the accident that is damaged and causes because of arm self amount of deflection is excessive.
Be preferred embodiment of the present utility model only below, be not limited to the utility model.In a preferred embodiment, the included two groups of drag-lines (first drag-line and second drag-line) of this pair rope linkage coupling comprise two drag-lines 301,302 and 201,202 respectively, but the utility model is not limited thereto, the quantity of drag-line can be other number, for example three groups, four groups, decide as required.
In addition, each mounting structure of organizing drag-line can be consistent, also can be different, and they can adopt the mounting structure of first drag-line of describing in the foregoing description 30 respectively, also can adopt the mounting structure of the second above-mentioned drag-line 20.
For a person skilled in the art, the utility model can have various changes and variation.All any modifications of within spirit of the present utility model and principle, being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims (10)

1. the connecting device of a crane arm, described hoisting crane comprises mast, arm and arm-tie, described connecting device comprises first drag-line, one end of described first drag-line is connected to described arm-tie and the other end is connected to described arm, it is characterized in that described connecting device further comprises second drag-line that connects described arm-tie and described arm.
2. connecting device according to claim 1 is characterized in that, on the described arm rope pulley is installed, and an end of described second drag-line is connected to described arm-tie and the other end is walked around the described rope pulley of crossing and is connected to described mast.
3. connecting device according to claim 1, it is characterized in that, described arm-tie is installed with first installation bracket that corresponds respectively to described first drag-line and described second drag-line and have connecting bore, and is installed with second installation bracket that corresponds respectively to described first drag-line and described second drag-line and have connecting bore on described arm.
4. connecting device according to claim 3, it is characterized in that, the upper end of each in described first drag-line and described second drag-line is formed with upper end hole, pass each upper end hole in described first drag-line and described second drag-line by bearing pin and be connected in described first installation bracket on the described arm-tie corresponding one, the lower end of each in described first drag-line and described second drag-line is formed with down stomidium, connects by bearing pin each the lower end in described first drag-line and described second drag-line is connected in described second installation bracket of described arm corresponding one.
5. connecting device according to claim 2, it is characterized in that, described arm-tie is installed with first installation bracket with holes that corresponds respectively to described first drag-line and described second drag-line, and is installed with second installation bracket with holes corresponding to described first drag-line on described arm.
6. connecting device according to claim 1 is characterized in that, further comprises being arranged on described first drag-line or second drag-line and described arm-tie or/and the support between the jib.
7. according to each described connecting device among the claim 1-6, it is characterized in that described connecting device comprises two described first drag-lines being symmetrically distributed with respect to the axis of the length direction of described arm and/or two described second drag-lines that are symmetrically distributed with respect to the axis of the length direction of described arm.
8. according to each described connecting device among the claim 1-6, it is characterized in that described support is the rod like parts that two ends are formed with bracket holes respectively.
9. connecting device according to claim 7 is characterized in that, described first drag-line and/or described second drag-line are steel ropes.
10. a hoisting crane comprises according to each described connecting device among the claim 1-10.
CN2010206966253U 2010-12-31 2010-12-31 Connecting device of crane jib and crane with same CN202022678U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206966253U CN202022678U (en) 2010-12-31 2010-12-31 Connecting device of crane jib and crane with same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010206966253U CN202022678U (en) 2010-12-31 2010-12-31 Connecting device of crane jib and crane with same

Publications (1)

Publication Number Publication Date
CN202022678U true CN202022678U (en) 2011-11-02

Family

ID=44847638

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010206966253U CN202022678U (en) 2010-12-31 2010-12-31 Connecting device of crane jib and crane with same

Country Status (1)

Country Link
CN (1) CN202022678U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103112786A (en) * 2013-02-06 2013-05-22 徐工集团工程机械股份有限公司 Auxiliary bracing connection device for carrying arm support
CN105035977A (en) * 2015-09-10 2015-11-11 徐工集团工程机械股份有限公司 Waist line device, cantilever crane bearing device and crane
WO2019111642A1 (en) * 2017-12-06 2019-06-13 コベルコ建機株式会社 Intermediate support holder for construction machinery

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103112786A (en) * 2013-02-06 2013-05-22 徐工集团工程机械股份有限公司 Auxiliary bracing connection device for carrying arm support
CN103112786B (en) * 2013-02-06 2015-06-24 徐工集团工程机械股份有限公司 Auxiliary bracing connection device for carrying arm support
CN105035977A (en) * 2015-09-10 2015-11-11 徐工集团工程机械股份有限公司 Waist line device, cantilever crane bearing device and crane
WO2019111642A1 (en) * 2017-12-06 2019-06-13 コベルコ建機株式会社 Intermediate support holder for construction machinery

Similar Documents

Publication Publication Date Title
CN104350231B (en) The method of operating of operation on the sea ship and described operation on the sea ship
CN101476294B (en) Mounting method for underbeam segment of large-stride steel box girder stayed-cable bridge
CN105464064B (en) A kind of self-elevating drilling platform cantilever beam heavy-duty test system and method
CN104110020B (en) A kind of self-elevating ocean platform hydraulic bolt jacking system
CN101423180B (en) Method for lifting a crane boom
CN201372406Y (en) Guide plate device used for vortex vibration control of separative box-girder bridge
CN102797226B (en) Integral erection construction method of 60m steel box girder
CN102718156B (en) Crane arm support system and crane
EP1922280B1 (en) Tie-back system for cranes, in particular heavy load offshore cranes
CN101224856A (en) Long-span load-carrying cable lifting machine and mounting method therefor
CN106081926A (en) Harbour Radix Saposhnikoviae crane with mechanical arm gripping device
CN101537976B (en) Dual-tower-mast giant self-lifting crane and following-carrying lifting method thereof
EP2639196B1 (en) TOWER CRANE AND TIE ROD STRUCTURE of balance boom THEREOF, AND method for MOUNTING tie rod structure of balance boom
CN202214130U (en) Balance beam for hoisting
CN101746681A (en) Single-cylinder plug type telescopic jib crane, jib length measurement method and measurement device thereof
CN203558761U (en) Hydraulic knuckle crane
US3936034A (en) Balanced hoist apparatus
CN105149965A (en) General assembling technology for crane
CN103935882A (en) Holding-lifting method for large thin-wall dryer
CN201580920U (en) Crane and single-cylinder pin-type telescopic arm and pin self-locking device thereof
CN102491193B (en) Crane super-lifting device and all-terrain crane with the crane super-lifting device
CN103979416B (en) Crane ship A support compensation of undulation actuating unit
CN202391339U (en) Rotary drilling rig with automatically assembled and disassembled balance weight and adjustable barycenter
CN203728443U (en) Combined tower crane with main and auxiliary boom structure
CN202265348U (en) Tower crane with lightning arrester

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CP01 Change in the name or title of a patent holder

Address after: 410013 No. 361 South silver basin, Hunan, Changsha

Patentee after: Zoomlion Heavy Industry Science & Technology Development Co., Ltd.

Address before: 410013 No. 361 South silver basin, Hunan, Changsha

Patentee before: Chang Sha Zoomlion Heavy Industry Science & Technology Development Co., Ltd.

Address after: 410013 No. 361 South silver basin, Hunan, Changsha

Patentee after: Zoomlion Heavy Industry Science & Technology Development Co., Ltd.

Address before: 410013 No. 361 South silver basin, Hunan, Changsha

Patentee before: Chang Sha Zoomlion Heavy Industry Science & Technology Development Co., Ltd.

C56 Change in the name or address of the patentee
CX01 Expiry of patent term

Granted publication date: 20111102

CX01 Expiry of patent term