CN201087085Y - Trussed-beam type lengthened auxiliary elevator boom with variable cross-section - Google Patents

Trussed-beam type lengthened auxiliary elevator boom with variable cross-section Download PDF

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Publication number
CN201087085Y
CN201087085Y CNU2007200456255U CN200720045625U CN201087085Y CN 201087085 Y CN201087085 Y CN 201087085Y CN U2007200456255 U CNU2007200456255 U CN U2007200456255U CN 200720045625 U CN200720045625 U CN 200720045625U CN 201087085 Y CN201087085 Y CN 201087085Y
Authority
CN
China
Prior art keywords
jib boom
arm
variable
transition
frame
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 - Fee Related
Application number
CNU2007200456255U
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Chinese (zh)
Inventor
张正得
丁颖
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 Heavy Machinery Co Ltd
Original Assignee
Xuzhou Heavy Machinery 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 Heavy Machinery Co Ltd filed Critical Xuzhou Heavy Machinery Co Ltd
Priority to CNU2007200456255U priority Critical patent/CN201087085Y/en
Application granted granted Critical
Publication of CN201087085Y publication Critical patent/CN201087085Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a truss type variable cross section lengthened auxiliary jib boom, which belongs to the auxiliary jib boom of the engineering machinery. The auxiliary jib boom comprises a connecting frame, a rotating frame, lengthened sections, a transition section, a top section arm and a variable amplitude structure, wherein, the connecting frame, the rotating frame, the transition section and the top section arm are connected end to end through wrists, the lengthened sections are respectively connected between the rotating frame and the transition section and between the transition section and the top section arm, the variable amplitude structure is connected to the lower end of the rotating frame, and connecting pin holes are respectively arranged at the both ends of each frame. The utility model has the advantages that: firstly, the weight of the auxiliary jib boom is light, and the load-bearing capacity is high; secondly, different length of the gib arm is realized, and the operation range of the large sized crane is widened; thirdly, the middle section adopts the variable cross section, therefore, the weight can be remarkably lightened, and the hoisting performance is improved; fourthly, two deformations are provided, the length of the main jib boom can be lengthened, and the main jib boom can be used with the auxiliary jib boom through connection; fifthly, the windward area of the auxiliary jib boom is small and is suitable for the operation in the high wind pressure upper air or by the seaside; sixthly, the improvement to the hoisting performance is considerable, and the hoisting performance can be improved by 2 to 5 times in larger operating range.

Description

Truss-like variable section extended type auxiliary cargo boom
Technical field
The utility model relates to a kind of auxiliary cargo boom of construction machinery and equipment, particularly a kind of truss-like variable section extended type auxiliary cargo boom.
Background technology
Auxiliary cargo boom is the main load-carrying element of hoisting crane lift heavy, and generally its deadweight accounts for 4~10% of complete vehicle weight.But on large-scale hoisting crane, weight often accounts for more than 20% of complete machine weight, because the secondary arm that risen is installed in and carries out operation on the main crane arm, far away from hoisting crane, its deadweight is the principal element that influences the lift heavy amount, especially when descending operation by a relatively large margin, the own wt that therefore alleviates auxiliary cargo boom is the important channel that guarantees that certain hoisting capacity is arranged under certain amplitude, improve lifting performance.Existing hoisting crane auxiliary cargo boom Heavy Weight, load-carrying capacity are poor.
Summary of the invention
The purpose of this utility model is to provide a kind of: the truss-like variable section extended type auxiliary cargo boom that the hoisting crane auxiliary cargo boom is in light weight, load-carrying capacity is strong.
The purpose of this utility model is achieved in that this auxiliary cargo boom includes link span, swivel mount, extension, transition segment, epimerite arm and luffing structure, link span, swivel mount, transition segment and epimerite arm are connected from beginning to end by bearing pin, all be connected with extension between swivel mount and the transition segment and between transition segment and the epimerite arm, the lower end of swivel mount is connected with the luffing structure, at two ends of each shelf the connection pin-and-hole is arranged all.
Beneficial effect: owing to adopted such scheme, therefore, the structure of auxiliary cargo boom is selected lightweight truss type for use, approximate cantilever beam during its work, root is stressed big, Cross section Design is become transformable, reduce to the head constant gradient from root, for satisfying certain length and easy accessibility, realize different length by middle extension, rely on it weight can be risen to higher height, carrying is from the farther weight of hoisting crane, the hoisting crane auxiliary cargo boom is in light weight, load-carrying capacity is strong, has reached the purpose of this utility model.
Advantage: 1, the integral structure of auxiliary cargo boom adopts lattice truss shape structure, and is in light weight, load-carrying capacity is strong.2, realize the different length of arm by the middle segmentum intercalaris of different cross section, widened the scope of work of goliath.3, middle segmentum intercalaris adopts variable section, and significantly expendable weight improves lifting performance.4, the link span of auxiliary cargo boom has two kinds of distortion, and the main boom length that can extend also can be done the connection of auxiliary cargo boom and use.5, the auxiliary cargo boom wind area is little, suitable big high-altitude or the seashore operation of blast.6, under auxiliary cargo boom and the identical operating mode with box principal arm relatively, it is considerable to improve lifting performance, can improve 2-5 doubly when bigger operation amplitude.
Description of drawings
Fig. 1 is a constructional drawing of the present utility model.
The specific embodiment
Embodiment 1: this auxiliary cargo boom includes link span 1, swivel mount 2, extension 5, transition segment 3, epimerite arm 4 and luffing structure 6, link span, swivel mount, transition segment and epimerite arm are connected by bearing pin 8 head and the tail, all be connected with extension between swivel mount and the transition segment and between transition segment and the epimerite arm, the lower end of swivel mount 2 connects by luffing structure 6 is arranged, and at two ends of each shelf the pin-and-hole 7 of connection is arranged all.
The link span of this auxiliary cargo boom can be used as the lengthening principal arm and uses, also can connect frame uses, the lower end of swivel mount has the effect of luffing for the luffing structure, extension and back extension before extension divides can be installed lengthening 1-3 joint according to the design needs of car load, transition segment can be used for the different cross section of transition, adapt to and being connected of other support body with this, the end of epimerite arm is equipped with pulley, and all link spans connect from beginning to end by bearing pin and combine.

Claims (1)

1. truss-like variable section extended type auxiliary cargo boom, it is characterized in that: this auxiliary cargo boom includes link span, swivel mount, extension, transition segment, epimerite arm and luffing structure, link span, swivel mount, transition segment and epimerite arm are connected from beginning to end by bearing pin, all be connected with extension between swivel mount and the transition segment and between transition segment and the epimerite arm, the lower end of swivel mount is connected with the luffing structure, at two ends of each shelf the connection pin-and-hole is arranged all.
CNU2007200456255U 2007-08-30 2007-08-30 Trussed-beam type lengthened auxiliary elevator boom with variable cross-section Expired - Fee Related CN201087085Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007200456255U CN201087085Y (en) 2007-08-30 2007-08-30 Trussed-beam type lengthened auxiliary elevator boom with variable cross-section

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007200456255U CN201087085Y (en) 2007-08-30 2007-08-30 Trussed-beam type lengthened auxiliary elevator boom with variable cross-section

Publications (1)

Publication Number Publication Date
CN201087085Y true CN201087085Y (en) 2008-07-16

Family

ID=39634679

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2007200456255U Expired - Fee Related CN201087085Y (en) 2007-08-30 2007-08-30 Trussed-beam type lengthened auxiliary elevator boom with variable cross-section

Country Status (1)

Country Link
CN (1) CN201087085Y (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102774761A (en) * 2012-07-27 2012-11-14 三一重工股份有限公司 Arm section of truss arm, truss arm and crane
CN106115508A (en) * 2016-08-26 2016-11-16 南通力威机械有限公司 A kind of combination type pontoon hangs
CN106379821A (en) * 2016-11-01 2017-02-08 山东电力建设第工程公司 Construction method for assemble cargo boom of crawling crane through breaking-off method
CN111377367A (en) * 2020-04-22 2020-07-07 浙江三一装备有限公司 Truss arm and crane

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102774761A (en) * 2012-07-27 2012-11-14 三一重工股份有限公司 Arm section of truss arm, truss arm and crane
CN106115508A (en) * 2016-08-26 2016-11-16 南通力威机械有限公司 A kind of combination type pontoon hangs
CN106379821A (en) * 2016-11-01 2017-02-08 山东电力建设第工程公司 Construction method for assemble cargo boom of crawling crane through breaking-off method
CN111377367A (en) * 2020-04-22 2020-07-07 浙江三一装备有限公司 Truss arm and crane

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080716

Termination date: 20150830

EXPY Termination of patent right or utility model