CN102556860A - A-frame assembly and crane comprising same - Google Patents

A-frame assembly and crane comprising same Download PDF

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Publication number
CN102556860A
CN102556860A CN2012100720696A CN201210072069A CN102556860A CN 102556860 A CN102556860 A CN 102556860A CN 2012100720696 A CN2012100720696 A CN 2012100720696A CN 201210072069 A CN201210072069 A CN 201210072069A CN 102556860 A CN102556860 A CN 102556860A
Authority
CN
China
Prior art keywords
type frame
support
frame assembly
frame
arm
Prior art date
Application number
CN2012100720696A
Other languages
Chinese (zh)
Inventor
孙起贵
王亮
乔柱
廖虎灵
Original Assignee
昆山三一机械有限公司
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.)
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Publication date
Application filed by 昆山三一机械有限公司 filed Critical 昆山三一机械有限公司
Priority to CN2012100720696A priority Critical patent/CN102556860A/en
Publication of CN102556860A publication Critical patent/CN102556860A/en

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Abstract

The invention discloses an A-frame assembly and a crane comprising the same. The A-frame assembly comprises an A frame arranged on a crane platform, a rear weight tray pull plate, a support frame and a main luffing winch; the support frame is positioned between the rear weight tray pull plate and the A frame; the upper end of the rear weight tray pull plate is rotationally connected with the upper end of the A frame; the lower end of the rear weight tray pull plate is connected to a rear weight guide rail; the upper end of the support frame is connected with the A frame, and the lower end of the support frame is connected with the crane platform; the main luffing winch is positioned on the A frame; and the A frame has a truss structure formed by welding metal tubes, and forms an obtuse angle with an extended line of a horizontal line segment in which the crane platform is positioned towards the front of the crane. By the invention, the bearing capacity is improved, a long boom can be folded without a mast, and the A-frame assembly is convenient to transport and mount.

Description

A kind of A type frame assembly and comprise the hoisting crane of this assembly
Technical field
The present invention relates to the crawler crane structure, relate in particular to a kind of A type frame assembly and comprise the hoisting crane of this assembly.
Background technology
A type frame assembly is installed on the crawler crane main platform, generally is made up of A type frame, support, adjust bar, and main effect is cocked principal arm and luffing.The total Chengdu of the used A type of crawler crane frame is the portal framed structure that is welded by sheet material at present, and shown in Fig. 1 a, Fig. 1 b and Fig. 1 c, 0 is hoisting crane master platform; 1 is A type frame, and 3 is support, and this kind structural section size is little; Load-carrying capacity is limited, is mainly used in little tonnage hoisting crane.Hoister in large tonnage uses this kind A type frame assembly only can cocked galianconism frame, and needing in the time of cocked long-armed increases mast in A type frame front side, to reach the purpose of cocked longer arm frame and luffing.On the whole, there is disadvantage in A type frame assembly of the prior art: (1) A type frame adopts the sheet material welding, and sectional dimension is little, and load-carrying capacity is low; When (2) hoister in large tonnage uses A type frame assembly, can only cocked galianconism frame; (3) hoister in large tonnage is if want cocked long-armed, and needing increases mast on this A type frame basis, if do not increase cocked long-armed of mast, the overall dimensions of this A type frame assembly are huge with quite.
Summary of the invention
To the problem of above-mentioned existence, the purpose of this invention is to provide a kind of A type frame assembly, it is high to improve structure bearing capacity and rod member stability coefficient, need not use mast to get final product cocked long-armed, is convenient to transportation and installs; Another object of the present invention is to provide a kind of hoisting crane that comprises above-mentioned A type frame assembly.
The objective of the invention is to realize through following technical proposals:
A kind of A type frame assembly; Comprise the A type frame that is arranged on the hoisting crane platform, wherein, also comprise back counterweight pallet arm-tie, support and main transformer width of cloth elevator; Said support is between said back counterweight pallet arm-tie and said A type frame; The upper end rotary connection of counterweight pallet arm-tie upper end, said back and said A type frame, the lower end of said back counterweight pallet arm-tie is connected on the weight guide of back, and the upper end of said support is connected with said A type frame; The lower end is connected with said hoisting crane platform, and said main transformer width of cloth elevator is positioned on the said A type frame; Said A type frame is the truss structure that is welded by metal tube, and said A type frame and said hoisting crane platform place horizontal line section is mutually the obtuse angle towards the extended line in hoisting crane the place ahead.
In preferred version of the present invention, said A type frame comprises joint arm and following joint arm on the truss-like, and said support upper end is connected in going up on the joint arm of said A type frame.
In preferred version of the present invention, said main transformer width of cloth elevator is positioned at going up the joint arm roots or saving the arm top down of said A type frame.
In preferred version of the present invention, also comprise a length-adjustable adjust bar, said adjust bar one end connects said A type frame, and the other end connects said support.
In preferred version of the present invention, said support is up-narrow and down-wide trapezium structure.
In preferred version of the present invention, said support is the truss structure that the body structure that is welded into of sheet material or metal tube are welded.
The invention also discloses a kind of hoisting crane, it comprises above-mentioned any described A type frame assembly.
Compared with present technology, beneficial effect of the present invention is:
1, of the present invention purlin constitutional formula A type frame sectional dimension is big, and the rod member stability coefficient is high, has improved load-carrying capacity, and intensity is high, good rigidly;
2, the jib of A type frame of the present invention is detachable, quick for installation, convenient transportation;
3, long-armed of need not that the additive incrementation mast can cocked hoister in large tonnage of A type frame assembly of the present invention.
Description of drawings
Fig. 1 a is the structural representation of A type frame assembly of the prior art;
Fig. 1 b is the structural representation of the support of A type frame assembly of the prior art;
Fig. 1 c is the structural representation of the A type frame of A type frame assembly of the prior art;
Fig. 2 a is the structural representation of the A type frame assembly of A type frame assembly of the present invention and the hoisting crane that comprises this assembly;
Fig. 2 b is the structural representation of A type frame of the A type frame assembly of A type frame assembly of the present invention and the hoisting crane that comprises this assembly.
Fig. 2 c is the structural representation that the A type frame assembly of A type frame assembly of the present invention and the hoisting crane that comprises this assembly is received poststack;
Fig. 2 d is the structural representation of support of the A type frame assembly of A type frame assembly of the present invention and the hoisting crane that comprises this assembly.
The specific embodiment
Below in conjunction with schematic diagram and concrete operations embodiment the present invention is described further.
Fig. 2 a shows the structural representation of A type frame assembly of the present invention; As shown in the figure; A type frame assembly of the present invention comprises the A type frame 1 that is arranged on the hoisting crane platform 0, back counterweight pallet arm-tie 2, support 3 and main transformer width of cloth elevator 4, support 3 between back counterweight pallet arm-tie 2 and A type frame 1, the upper end rotary connection of the upper end of back counterweight pallet arm-tie 2 and A type frame 1; Specifically can adopt the connection mode of bearing pin, pin-and-hole to realize, the connection mode of bearing pin is convenient to dismounting, is installed.The upper end of support 3 is connected with A type frame 1, and the lower end is connected with hoisting crane platform 0, and the lower end of back counterweight pallet arm-tie 2 then is connected on the weight guide 5 of back through bearing pin, and back counterweight pallet arm-tie 2, support 2 and A type frame 1 be the formation triangle each other.Simultaneously referring to shown in Fig. 2 b; Main transformer width of cloth elevator 4 is positioned on the A type frame, and preferably, main transformer width of cloth elevator 4 is positioned at going up the joint arm roots or saving the arm top down of A type frame 1; Main transformer width of cloth elevator mount pad (not illustrating in the drawings) is arranged on the A type frame 1; Be used to install above-mentioned main transformer width of cloth elevator 4, hoisting crane reaches the purpose of cocked jib and luffing through main transformer width of cloth elevator 4 folding and unfolding steel ropes.
In this specific embodiment, A type frame 1 is the truss structure that is welded by metal tube, preferably adopts steel pipe to be welded; This structural section size is big; Under the stressed cooresponding situation of traditional A type frame, load-carrying capacity is stronger, and anti-bending strength is better; And shown in Fig. 2 b, A type frame 1 and hoisting crane platform place horizontal line section are mutually the obtuse angle towards the extended line in hoisting crane the place ahead.
In this specific embodiment, shown in Fig. 2 b, A type frame 1 preferably includes joint arm 11 and saves arm 12 down, and the upper end of support 3 is connected in going up on the joint arm 11 of A type frame 1 through bearing pin.In addition, A type frame assembly of the present invention also comprises a length-adjustable adjust bar 6, and adjust bar 6 is an expansion link, and an end connects A type frame 1, and the other end connects support 3.Before the detachable transportation of A type frame assembly of the present invention, but also integral transportation, integral transportation A type frame of the present invention is received foldedly, the structural representation of receiving poststack is shown in Fig. 2 c.
Shown in Fig. 2 d, in this specific embodiment, support 3 is preferably up-narrow and down-wide trapezium structure, forms fixed triangle shape with truss-like A type frame 1, makes this A type frame assembly secure still under cocked long-armed situation of bearing huge pulling force and moment of flexure.
In this specific embodiment, support 3 is preferably the body structure that sheet material is welded into, and in a variant, support 3 is the truss structure that is welded of metal tube also, to realize the firm of support 3 bearing forces.
The invention still further relates to a kind of hoisting crane that comprises above-mentioned A type frame assembly; Because the A type frame assembly in this hoisting crane is different from prior art; Other parts are not drawn; Those skilled in the art can combine prior art to grasp the structure of other parts of the hoisting crane that adopts above-mentioned A type frame assembly, do not repeat them here.
To sum up, A type frame assembly of the present invention and comprise that the hoisting crane of this assembly has improved load-carrying capacity need not use the mast can cocked long-armed, is convenient to transportation and installs.
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 that the present invention is carried out with substitute 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 (7)

1. A type frame assembly; Comprise the A type frame (1) that is arranged on the hoisting crane platform (0); It is characterized in that; Also comprise back counterweight pallet arm-tie (2), support (3) and main transformer width of cloth elevator (4), said support (3) is positioned between said back counterweight pallet arm-tie (2) and the said A type frame (1), the upper end rotary connection of said back counterweight pallet arm-tie (2) upper end and said A type frame (1); The lower end of said back counterweight pallet arm-tie (2) is connected on the back weight guide (5); The upper end of said support (3) is connected with said A type frame (1), and the lower end is connected with said hoisting crane platform (0), and said main transformer width of cloth elevator (4) is positioned on the said A type frame (1); Said A type frame (1) is the truss structure that is welded by metal tube, and said A type frame (1) and said hoisting crane platform (0) place horizontal line section is mutually the obtuse angle towards the extended line in hoisting crane the place ahead.
2. A type frame assembly as claimed in claim 1 is characterized in that, said A type frame (1) comprises and save arm (11) and following joint arm (12) on the truss-like that said support (3) upper end is connected in going up on the joint arm (11) of said A type frame (1).
3. A type frame assembly as claimed in claim 2 is characterized in that, said main transformer width of cloth elevator (4) is positioned at going up joint arm (11) root or saving arm (12) top down of said A type frame (1).
4. A type frame assembly as claimed in claim 1 is characterized in that, also comprises a length-adjustable adjust bar (6), and said adjust bar (6) one ends connect said A type frame (1), and the other end connects said support (3).
5. A type frame assembly as claimed in claim 1 is characterized in that said support (3) is up-narrow and down-wide trapezium structure.
6. A type frame assembly as claimed in claim 5 is characterized in that, the truss structure that body structure that said support (3) is welded into for sheet material or metal tube are welded.
7. a hoisting crane is characterized in that, comprises any described A type frame assembly in the aforesaid right requirement 1 to 6.
CN2012100720696A 2012-03-19 2012-03-19 A-frame assembly and crane comprising same CN102556860A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012100720696A CN102556860A (en) 2012-03-19 2012-03-19 A-frame assembly and crane comprising same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012100720696A CN102556860A (en) 2012-03-19 2012-03-19 A-frame assembly and crane comprising same

Publications (1)

Publication Number Publication Date
CN102556860A true CN102556860A (en) 2012-07-11

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CN (1) CN102556860A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4827447A (en) * 1971-08-09 1973-04-11
JPH0827447A (en) * 1994-07-18 1996-01-30 Cemedine Co Ltd One-pack type chloroprene-based adhesive
JPH09165192A (en) * 1995-12-19 1997-06-24 Sumitomo Constr Mach Co Ltd Boom derricking device of crane provided with weight truck
EP1990306A2 (en) * 2007-04-09 2008-11-12 Manitowoc Crane Companies, Inc. Mobile lift crane with variable position counterweight
CN201292225Y (en) * 2008-11-25 2009-08-19 上海三一科技有限公司 A shaped frame for crawler crane
CN201292224Y (en) * 2008-11-25 2009-08-19 上海三一科技有限公司 Movable weight counterbalance apparatus of crawler crane
US20100072156A1 (en) * 2008-09-19 2010-03-25 Mentink Trevor D Boom Hoist Transportation System and Crane Using Same

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4827447A (en) * 1971-08-09 1973-04-11
JPH0827447A (en) * 1994-07-18 1996-01-30 Cemedine Co Ltd One-pack type chloroprene-based adhesive
JPH09165192A (en) * 1995-12-19 1997-06-24 Sumitomo Constr Mach Co Ltd Boom derricking device of crane provided with weight truck
EP1990306A2 (en) * 2007-04-09 2008-11-12 Manitowoc Crane Companies, Inc. Mobile lift crane with variable position counterweight
US20100072156A1 (en) * 2008-09-19 2010-03-25 Mentink Trevor D Boom Hoist Transportation System and Crane Using Same
CN201292225Y (en) * 2008-11-25 2009-08-19 上海三一科技有限公司 A shaped frame for crawler crane
CN201292224Y (en) * 2008-11-25 2009-08-19 上海三一科技有限公司 Movable weight counterbalance apparatus of crawler crane

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Effective date of registration: 20140519

Address after: 313028 building, floor 2, standard factory building, Cao Yi village, eight Li Town, Huzhou, Zhejiang

Applicant after: Zhejiang Sany Equipment Co., Ltd.

Address before: 215300 East Ring Road, Kunshan Development Zone, Suzhou, Jiangsu

Applicant before: Kunshan Sany Machinery Co., Ltd.

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Owner name: ZHEJIANG SANY EQUIPMENT CO., LTD.

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Application publication date: 20120711