CN211110733U - Rigid amplitude-variable inhaul cable system of movable-arm crane - Google Patents
Rigid amplitude-variable inhaul cable system of movable-arm crane Download PDFInfo
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- CN211110733U CN211110733U CN201922099345.8U CN201922099345U CN211110733U CN 211110733 U CN211110733 U CN 211110733U CN 201922099345 U CN201922099345 U CN 201922099345U CN 211110733 U CN211110733 U CN 211110733U
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Abstract
The utility model discloses a rigidity of swing-arm crane becomes width of cloth cable system belongs to hoisting machinery technical field. The rigid amplitude-variable cable system comprises an amplitude-variable movable pulley block positioned right above the middle part of the cargo boom, a segmented splicing type rigid amplitude-variable cable hinged between the amplitude-variable movable pulley block and the head part of the cargo boom, and an amplitude-variable steel wire rope which is wound between the amplitude-variable movable pulley block and an amplitude-variable winch and is reversed by a steering fixed pulley; the segmental splicing type rigid amplitude-variable inhaul cable is a chain structure formed by sequentially hinging a plurality of segmental pulling plates end to end through double-hole double-chain plates and a pin shaft. The utility model discloses an utilize segmentation concatenation formula rigidity to become width of cloth cable to replace the rope formula cable in the traditional system that becomes width of cloth, have simple structure, be convenient for the concatenation, dismantle fast, convenient transportation and transition, reliable quality, stable performance, easy access maintenance, advantage that corrosion resistance is strong, be difficult for ageing, long service life.
Description
Technical Field
The utility model belongs to the technical field of hoisting machinery, more specifically say and relate to a rigid luffing cable system of jib crane, be particularly suitable for being used for frequently installing and dismantling tower machine for wind-powered electricity generation construction.
Background
The jib crane changes the amplitude through the elevation angle change of a jib, such as a crawler crane, a portal crane, a mast crane, a jib tower crane and the like. The equipment has the advantages of compact structure, large effective height, light weight, small wind load, large lifting capacity and convenient assembly and disassembly, and is widely applied to engineering construction in the fields of thermal power, hydropower, wind power, metallurgy, mines and the like.
The amplitude change of the movable arm crane is realized by controlling the winding and unwinding of an amplitude-variable steel wire rope through an amplitude-variable winch, and an amplitude-variable system comprises the amplitude-variable winch (the steel wire rope containing a winding drum is called the amplitude-variable steel wire rope for short, and the multiplying power is not considered), a thick steel wire rope type amplitude-variable cable (called the rope type cable for short) with the fixed length at the front end and the like. The length of a cargo boom of the large-scale movable arm luffing crane is generally 50-70 meters, the total length of a luffing steel wire rope and a rope type guy rope in a luffing guy rope system is 60-70 meters at most, wherein the rope type guy rope with fixed length is about 40 meters generally, and the length of the luffing steel wire rope is changed by winding and unwinding a luffing winch, so that the purpose of luffing the cargo boom is achieved. In the design of a traditional variable amplitude system (see fig. 1 and 2), a traditional rope type stay cable is a whole steel wire rope and is a flexible stay cable, the traditional rope type stay cable bypasses a balance guide wheel at a variable amplitude movable pulley block, two ends of the traditional rope type stay cable are connected with the head of a crane boom, if the traditional rope type stay cable is segmented, the cost is too high, if one part of the whole steel wire rope of the traditional rope type stay cable is damaged, the whole steel wire rope needs to be scrapped, the situations of easy corrosion, difficult maintenance, complex detection and short service life exist, and particularly for a wind power crane and the like which are frequently installed and disassembled, the traditional rope type stay cable is easy to wind.
Disclosure of Invention
The utility model aims at providing a rigid luffing cable system of jib crane just to the weak point that exists among the above-mentioned prior art. The utility model discloses an utilize segmentation concatenation formula rigidity to become width of cloth cable to replace the rope formula cable in the traditional system that becomes width of cloth, have simple structure, be convenient for the concatenation, dismantle fast, convenient transportation and transition, reliable quality, stable performance, easy access maintenance, advantage that corrosion resistance is strong, be difficult for ageing, long service life.
The purpose of the utility model can be realized by the following technical measures:
the utility model discloses a rigid luffing cable system of crane boom includes the luffing movable pulley block that is located directly over the jib loading boom middle part, the segmentation concatenation formula rigidity luffing cable (the segmentation structure is convenient for make, convenient to overhaul and maintain, strong corrosion resistance, difficult ageing, long service life, the segmentation structure is convenient for splice simultaneously, quick dismantlement, convenient transportation and transition, the quality is reliable, the stable performance) that articulates between luffing movable pulley block and jib loading boom head, the luffing wire rope who changes direction through the fixed pulley that turns to between luffing movable pulley block and hoist engine (draw in or release luffing wire rope through luffing hoist engine, can drive luffing movable pulley block and jib loading boom face upward or lie prone down, namely change the range through changing jib loading boom elevation change); the segmental splicing type rigid luffing cable is a chain structure formed by sequentially and hingedly connecting a plurality of sections of pulling plates end to end through double-hole double-chain plates and pin shafts (when disassembly transportation is needed, only the pin shaft between adjacent sections of the pulling plates needs to be dismantled, when splicing is needed, only the adjacent ends of the two pulling plates need to be clamped by the double-hole double-chain plates, and the pin shafts are inserted in the pin holes in an aligned mode).
The utility model discloses in become width of cloth hoist engine and install the back pull rod root at foldable propeller strut, turn to the fixed pulley and install at the fore-stock top of foldable propeller strut (become width of cloth wire rope along become width of cloth movable pulley group, turn to the fixed pulley, become width of cloth hoist engine and coil and draw in or release, through the jib loading boom face upward or lie prone down, drive the jib loading boom angle of elevation change and change the range).
The utility model discloses in the two-hole double-chain-plate is two identical link joint that pair uses, and the link joint appearance is the link joint shape in the bicycle chain, all joins in marriage at the both ends circular arc center of two-hole double-chain-plate and is processed the link joint pinhole that has and sell the axle matching (guarantee to wear to adorn the round pin axle smoothly).
The utility model discloses in the steel sheet pinhole that matches with the round pin axle has all been processed at the both ends of arm-tie (guarantee to wear to adorn the round pin axle smoothly).
The design principle of the utility model is as follows:
the utility model discloses an utilize segmentation concatenation formula rigidity to become width of cloth cable to replace the rope formula cable among the traditional system that becomes width of cloth, the rigidity that becomes width of cloth movable pulley group and jib loading boom head link together that links to each other in proper order through diplopore double-link board and round pin axle head and the tail by a plurality of sections high strength arm-stays promptly, segmentation concatenation formula rigidity becomes width of cloth cable and adopts the segmentation structure, the preparation of being convenient for, easy access is maintained, certain section does not need wholly to scrap when going wrong, corrosion resistance is strong, be difficult for ageing, long service life, reliable quality, stable performance, just can realize quick concatenation or dismantlement through the cartridge or demolish the round pin axle simultaneously, and the operation is convenient, convenient transportation and transition. Meanwhile, the amplitude-variable steel wire rope is wound between the amplitude-variable movable pulley block and the amplitude-variable winch and is reversed through the steering fixed pulley, so that the amplitude-variable steel wire rope is furled or released by the amplitude-variable winch, the amplitude-variable movable pulley block and the cargo boom can be driven to face upwards or face downwards, and the amplitude is changed by changing the elevation change of the cargo boom.
The utility model has the advantages of as follows:
the utility model discloses an utilize segmentation concatenation formula rigidity to become width of cloth cable to replace the rope formula cable in the traditional system that becomes width of cloth, have simple structure, be convenient for the concatenation, dismantle fast, convenient transportation and transition, reliable quality, stable performance, easy access maintenance, advantage that corrosion resistance is strong, be difficult for ageing, long service life.
Will the utility model discloses on the wide application was in wind-powered electricity generation or building field swing-arm crane, the result was obvious, and concrete beneficial technological effect embodies as follows:
in a movable arm type crane (such as a movable arm tower crane) with the lifting capacity of 130 tons, the traditional variable amplitude cable uses 2 high-strength variable amplitude steel wire ropes with the lengths of 70 meters and the diameters of 60 millimeters, the high-strength variable amplitude steel wire ropes are respectively folded, four end heads are pressed and sleeved by aluminum alloy, the cost is 0.5 ten thousand yuan, the cost of a balance wheel and a connecting piece is 0.6 ten thousand yuan, the assembly, disassembly, detection and maintenance cost before and after each project is 0.4 yuan, the total cost of 6 years (4 projects) is (0.5 +0.6+4 × 0.4.4) =2.7 ten thousand yuan, the cost of 20 years is 9 ten thousand yuan, after a rigid pulling plate is used, the weight is 4.5 tons, the cost is 4 ten thousand yuan, and the service life is 20 years, obviously in the life cycle of the tower crane, the rigid pulling cable can be saved by 5 thousand yuan compared with a flexible pulling cable, the rigid pulling cable can achieve 55%, and is safe, reliable, scientific, practical, simple and convenient to manufacture, maintenance, detection and transportation, convenient.
Drawings
Fig. 1 is a schematic structural view of a conventional luffing pull rope.
Fig. 2 is a view from direction B of fig. 1.
Fig. 3 is a schematic structural diagram of the present invention.
Fig. 4 is a schematic structural diagram of the sectional splicing type rigid variable amplitude cable and variable amplitude movable pulley block in the utility model.
Fig. 5 is a top view of fig. 4.
Part numbers in the drawings: 1. the cable comprises a segmented splicing type rigid amplitude-variable cable, 1-1 parts of pull plates, 1-2 parts of double-hole double-chain plates, 1-3 parts of pin shafts, 2 parts of amplitude-variable movable pulley blocks, 3 parts of amplitude-variable steel wire ropes, 4 parts of steering fixed pulleys, 5 parts of amplitude-variable windlasses, 6 parts of folding type reversed V-brackets, 6-1 parts of rear pull rods, 6-2 parts of front supports, 7 parts of cargo booms, 8 parts of traditional rear connecting plates, 9 parts of balance guide wheels, 10 parts of traditional rope type cables, 11 parts of traditional front connecting plates.
Detailed Description
The present invention will be further described with reference to the accompanying drawings:
as shown in figures 3-5, the rigid amplitude cable system of the movable jib crane of the utility model comprises an amplitude movable pulley block (2) positioned right above the middle part of a jib boom (7), a sectional splicing type rigid amplitude cable (1) (the sectional structure is convenient to manufacture, convenient to overhaul and maintain, strong in corrosion resistance, not easy to age and long in service life) hinged between the amplitude movable pulley block (2) and the head part of the jib boom (7), and meanwhile, the sectional structure is convenient to splice, fast to disassemble, convenient to transport and transfer, reliable in quality and stable in performance, and an amplitude steel wire rope (3) which is wound between the amplitude movable pulley block (2) and the amplitude winch (5) and is reversed by a steering fixed pulley (4) (the amplitude steel wire rope (3) is furled or released by the amplitude winch (5), and the amplitude movable pulley block (2) and the jib boom (7) can be driven to face upward or lie down, i.e. by varying the boom (7) elevation change); the segmental splicing type rigid amplitude-variable inhaul cable (1) is a chain structure formed by sequentially and hingedly connecting a plurality of segments of pulling plates (1-1) end to end through double-hole double-chain plates (1-2) and pin shafts (1-3) (when disassembly transportation is needed, only the pin shafts (1-3) between adjacent segments of the pulling plates (1-1) are needed to be disassembled, when splicing is needed, only the double-hole double-chain plates (1-2) are used for clamping the adjacent ends of the two pulling plates (1-1), and the pin shafts (1-3) are inserted in the pin hole positions in an aligned mode).
The utility model discloses in become width of cloth hoist engine (5) and install back pull rod (6-1) root at foldable propeller strut (6), turn to fore-stock (6-2) top (become width of cloth wire rope (3) and move assembly pulley (2), turn to fixed pulley (4), become width of cloth hoist engine (5) and convolute and draw in or release along becoming width of cloth movable pulley (2) at foldable propeller strut (6) are installed in width of cloth fixed pulley (4), become width of cloth hoist engine (5), through jib loading boom (7) face upward or lie prone down, drive jib loading boom (7) elevation change and change the range.
The utility model discloses in two hole double-link board (1-2) are two identical link boards of pairing use, and the link board appearance is the link board shape in the bicycle chain, all joins in marriage at the both ends circular arc center of two hole double-link board and has processed the link board pinhole that matches with round pin axle (1-3) (guarantee smoothly wear to adorn round pin axle (1-3)).
In the utility model, steel plate pin holes matched with the pin shafts (1-3) are processed at both ends of the pulling plate (1-1) (ensuring the pin shafts (1-3) to be smoothly worn).
The utility model discloses a concrete in service behavior as follows:
when the utility model is used, firstly, a plurality of sections of pulling plates (1-1) are sequentially connected end to form a segmented splicing type rigid variable amplitude cable (1) with a chain structure, namely, the ends of the front and rear adjacent sections of pulling plates (1-1) are clamped by double-hole double-chain plates (1-2), and pin shafts (1-3) are arranged after pin holes are aligned; two ends of the sectional splicing type rigid amplitude variation inhaul cable (1) are respectively hinged with the amplitude variation movable pulley block (2) and the head part of the cargo boom (7); then, a variable-amplitude steel wire rope (3) extending out of a variable-amplitude movable pulley block (2) positioned at the root part of a rear pull rod (6-1) of the folding propeller strut (6) is wound around a steering fixed pulley (4) arranged at the top part of a front support (6-2) of the folding propeller strut (6) to be reversed, the variable-amplitude steel wire rope (3) reversed is wound on a variable-amplitude winch (5), the variable-amplitude steel wire rope (3) is furled or released through the variable-amplitude winch (5), the variable-amplitude movable pulley block (2) and a crane boom (7) can be driven to face upwards or face downwards, and the purpose of changing the amplitude is achieved by changing the elevation angle change of the crane boom (7).
When the pull plate needs to be disassembled for transportation, the pull plate (1-1) which is disassembled into a section is disassembled for transportation by only disassembling the pin shaft (1-3) between the adjacent sections of the pull plate (1-1) and the sectional splicing type rigid amplitude variation inhaul cable (1).
Claims (4)
1. The utility model provides a rigid width of cloth cable system of luffing jib crane which characterized in that: the device comprises an amplitude-variable movable pulley block (2) positioned right above the middle part of a crane boom (7), a segmented splicing type rigid amplitude-variable cable (1) hinged between the amplitude-variable movable pulley block (2) and the head part of the crane boom (7), and an amplitude-variable steel wire rope (3) which is wound between the amplitude-variable movable pulley block (2) and an amplitude-variable winch (5) and is reversed by a steering fixed pulley (4); the segmental splicing type rigid amplitude-variable inhaul cable (1) is a chain-shaped structure formed by sequentially hinging a plurality of segmental pulling plates (1-1) end to end through double-hole double-chain plates (1-2) and pin shafts (1-3).
2. The rigid luffing cable system of a jib crane according to claim 1, wherein: the variable-amplitude winch (5) is arranged at the root of a rear pull rod (6-1) of the folding propeller strut (6), and the steering fixed pulley (4) is arranged at the top of a front support (6-2) of the folding propeller strut (6).
3. The rigid luffing cable system of a jib crane according to claim 1, wherein: the double-hole double-chain plate (1-2) is two identical chain plates which are used in a matched mode, the appearance of each chain plate is in the shape of a chain plate in a bicycle chain, and chain plate pin holes matched with the pin shafts (1-3) are machined in the centers of circular arcs at two ends of the double-hole double-chain plate.
4. The rigid luffing cable system of a jib crane according to claim 1, wherein: and steel plate pin holes matched with the pin shafts (1-3) are processed at both ends of the pulling plate (1-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922099345.8U CN211110733U (en) | 2019-11-29 | 2019-11-29 | Rigid amplitude-variable inhaul cable system of movable-arm crane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922099345.8U CN211110733U (en) | 2019-11-29 | 2019-11-29 | Rigid amplitude-variable inhaul cable system of movable-arm crane |
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| CN211110733U true CN211110733U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922099345.8U Active CN211110733U (en) | 2019-11-29 | 2019-11-29 | Rigid amplitude-variable inhaul cable system of movable-arm crane |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114044450A (en) * | 2021-11-17 | 2022-02-15 | 郑州新大方重工科技有限公司 | Integral quick-release device and method for supporting arm system and crane |
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2019
- 2019-11-29 CN CN201922099345.8U patent/CN211110733U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114044450A (en) * | 2021-11-17 | 2022-02-15 | 郑州新大方重工科技有限公司 | Integral quick-release device and method for supporting arm system and crane |
| CN114044450B (en) * | 2021-11-17 | 2024-01-19 | 郑州新大方重工科技有限公司 | Integral quick-dismantling device and method for arm support system and crane |
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