CN102795552B - Lifting drive mechanism of travelling crane - Google Patents
Lifting drive mechanism of travelling crane Download PDFInfo
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- CN102795552B CN102795552B CN201210312258.6A CN201210312258A CN102795552B CN 102795552 B CN102795552 B CN 102795552B CN 201210312258 A CN201210312258 A CN 201210312258A CN 102795552 B CN102795552 B CN 102795552B
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Abstract
The invention discloses a lifting drive mechanism of a travelling crane. The lifting drive mechanism of the travelling crane comprises a hydraulic oil cylinder and a lifting beam, wherein the top surface of a main beam of the travelling crane is provided with a drive shaft, a driven shaft located at left and right of the drive shaft and a gear rack pair; big chain wheels located at the front side and the back side of a gear are arranged on the drive shaft; the driven shaft is provided with small chain wheels corresponding to the big chain wheels and a lifting wheel; the big chain wheels and the small chain wheels are connected by chain rings; the top surface of the main beam of the travelling crane is provided with two first guide wheels respectively corresponding to two lifting wheels; two second guide wheels are arranged at the left and the right of the lifting beam; the main beam is connected with two lifting ropes to correspond to the two second guide wheels; each lifting rope passes through the second guide wheel, the lifting wheel and the first guide wheel all of which are at the same side; and the terminal of each lifting rope is connected with a balancing weight. Therefore, the maximum stroke of the hydraulic oil cylinder can be smaller than the maximum lifting distance, and the investment at the early stage and the use cost at the later stage of the hydraulic oil cylinder can be decreased. According to the force-saving principle of pulleys, the lifting drive mechanism of the travelling crane, disclosed by the invention, is good for protecting the hydraulic oil cylinder.
Description
Technical field
The present invention relates to driving lifting transmission device.
Background technology
In production process of gas concrete, often need, by Special running, aerated concrete finished product lifting is run to assigned address.China Patent No. is ZL 200420028850.4(Granted publication CN 2693736Y) utility model a kind of finished product crane is disclosed, belong to the finished product crane of aerated concrete specialized equipment.Be expert on car owner's beam and be fixed with vertically downward two vertical tracks, in operation between two vertical tracks, have two suspender arms and be fixedly mounted with a fixture crossbeam between these two suspender arms, uniformly on this fixture crossbeam be fixed with a row to folder fixture.The lifting of fixture crossbeam take the to be expert at medium position of car owner's beam is fixed with hydraulic ram, the Trolley that this hydraulic ram is expert at and is moved on the track of car owner's beam by lifting rope tractive one, on driving girder, be fixed with chain wheel set, chain wheel set on this fixture crossbeam on corresponding row car owner beam is fixed with lifting rope, and Trolley is realized the lifting of fixture crossbeam by tractive chain rope.Above-mentioned utility model need to be expert on the track of car owner's beam Trolley is set, and structure is more complicated, and maintenance cost is higher.The lifting transmission device of aerated concrete finished product hoisting crane is generally directly by chain rope, to realize the lifting of fixture crossbeam by hydraulic ram at present, so require the range of hydraulic ram to be greater than maximum sling height, early investment is larger.
Summary of the invention
The range that the object of the invention is to propose a kind of hydraulic ram can be less than the driving derricking gear of maximum sling height.
For achieving the above object, the present invention takes following technical scheme:
The present invention includes the hydraulic ram and the hoisting cross beam in driving girder below that are arranged on driving girder end face, driving girder end face is provided with imput shaft, driven shaft and a rack-and-pinion of the axle left and right sides have the initiative, the tooth bar of rack-and-pinion drives slippage by described hydraulic ram, gear is arranged in imput shaft and drives imput shaft to rotate, in imput shaft and in the front and back of gear side, be respectively provided with hinge wheel, each driven shaft is provided with the minor sprocket corresponding with hinge wheel and plays hanging wheel, between the minor sprocket of each hinge wheel and correspondence, by chain link, connected, driving girder end face is provided with two the first track adjusting wheels of respectively corresponding two hanging wheels, left and right sides at hoisting cross beam is respectively provided with the second track adjusting wheel, corresponding two the second track adjusting wheels on car owner's beam of being expert at connect two lifting ropes, every lifting rope is by the second track adjusting wheel of homonymy, play hanging wheel and the first track adjusting wheel, its terminal connects clump weight.
Described driving girder end face is provided with bearing, and tooth bar slides on bearing, and described imput shaft is supported by pair of bearing.
Described bearing is provided with guide rail, and described tooth bar bottom surface is provided with slide block, and tooth bar slides on guide rail by slide block.
Between the piston rod of described hydraulic ram and tooth bar, by bearing pin, connected, bearing pin is provided with oscillating bearing.
On driving girder, corresponding each second track adjusting wheel is provided with a lifting rope tightener, and the top of described lifting rope is connected on lifting rope tightener.
Above-mentioned lifting rope adopts wirerope, correspondingly, plays hanging wheel, the second track adjusting wheel and the first track adjusting wheel and adopts pulley.
Above-mentioned lifting rope adopts chain, correspondingly, plays hanging wheel, the first track adjusting wheel and the second track adjusting wheel and adopts sprocket wheel.
The present invention has following good effect: in the present invention, by twice reducing of hinge wheel, minor sprocket and a hanging wheel, sling height is amplified, so the range of hydraulic ram can be less than maximum lifting distance, can reduce the early investment of hydraulic ram for this reason, reduce long stroke hydraulic oil cylinder in the flexural deformation of working environment lower piston rod over a long time and the maintenance bringing and the later stage use cost of replacing simultaneously.The present invention is according to the laborsaving principle of movable pulley, and the favourable protection to hydraulic ram can extend service life of hydraulic ram, can reduce later stage use cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the birds-eye view of Fig. 1.
Fig. 3 is the A-A cutaway view of Fig. 1.
Fig. 4 is the enlarged drawing of transmission gearbox part in Fig. 1.
The specific embodiment
Embodiment 1
Embodiment 1 shown in the drawings comprises hydraulic ram 2 and the hoisting cross beam 21 in driving girder 1 below being arranged on driving girder 1 end face, for making hoisting cross beam 21 stable elevation, the both sides of hoisting cross beam 21 are respectively fixed with traversing carriage 21-1, and traversing carriage 21-1 follows stay and slides.Driving girder 1 has the framework being comprised of two crossbeam 1-1 and two end carriage 1-2, and on framework, corresponding installing component place is fixed with stay bearing plate 1-3 or support beam 1-3.
Driving girder 1 end face is provided with imput shaft 3, the driven shaft 9 of axle 3 left and right sides that have the initiative and a rack-and-pinion 4, and the tooth bar 4-2 of rack-and-pinion 4 drives slippages by described hydraulic ram 2, and gear 4-1 is arranged in imput shaft on 3 and drives 3 rotations in imput shaft.In imput shaft 3 and in the front and back of gear 4-1 side, be respectively provided with hinge wheel 5, each driven shaft 9 is provided with the minor sprocket corresponding with hinge wheel 58 and one hanging wheel 7, between the minor sprocket 8 of hinge wheel 5 and correspondence, by chain link 6, connected, driving girder 1 end face is provided with two the first track adjusting wheels 10, two the first track adjusting wheels 10 are corresponding with two hanging wheels 7 respectively, left and right sides at hoisting cross beam 21 is respectively provided with the second track adjusting wheel 14, the second track adjusting wheel plays the movable pulley effect in assembly pulley, on driving girder 1, corresponding two the second track adjusting wheels 14 are provided with two lifting rope tighteners 16, two lifting rope tighteners 16 respectively connect lifting rope 15, lifting rope 15 is by the second track adjusting wheel 14 of homonymy, play hanging wheel 7 and the first track adjusting wheel 10, the terminal of lifting rope 15 connects clump weight 17.
Above-mentioned lifting rope 15 can adopt wirerope, correspondingly, plays hanging wheel 7, the first track adjusting wheel 10 and the second track adjusting wheel 14 and adopts pulley, and lifting rope tightener 16 adopts wirerope tightener.
Above-mentioned lifting rope 15 can adopt chain, correspondingly, plays hanging wheel 7, the first track adjusting wheel 10 and the second track adjusting wheel 14 and adopts sprocket wheel, and lifting rope tightener 16 adopts chain tightener.
On described driving girder 1 end face, be fixed with transmission gearbox 12, hydraulic ram 2 is fixed on transmission gearbox 12.In transmission gearbox 12, be fixed with bearing 18, be provided with guide rail 19 on bearing 18, tooth bar 4-2 bottom surface is provided with slide block 4-2-1, and tooth bar 4-2 slides on guide rail 19 by slide block 4-2-1.Described imput shaft 3 is by pair of bearing 22 supportings that are arranged on the relative wall of transmission gearbox 12, and the bearing 23 of bearing seat 22 interior settings is band cover of dust deep groove ball bearing.Described two driven shafts 9 are supported by the two stands 20 on driving girder 1 end face respectively.Arranging of transmission gearbox 12 has been on the one hand the effect of support, can provide convenience for installation on the other hand.
The hand of rotation that plays hanging wheel 7 due to both sides is identical, the clump weight 17 of one side can be in hoisting cross beam 21 outside, clump weight 17 can be suspended on lifting rope 15, and the clump weight 17 of opposite side is as being suspended on lifting rope 15, disturb with hoisting cross beam 21, so take to be expert at, car owner's beam 1 is provided with oblique orbit 24, and oblique orbit 24 is straight-line motion coro bearng, and clump weight 17 slides on straight-line motion coro bearng.In Fig. 1, hinge wheel 5 is clickwise, and the clump weight 17 on the lifting rope 15 on right side hangs, and the clump weight 17 on the lifting rope 15 in left side is to slide on oblique orbit 24.
Because bearing 18 is shorter, and the long transmission gearbox that stretches out of tooth bar 4-2, so connected by bearing pin 13 between the piston rod 2-1 of hydraulic ram 2 and tooth bar 4-2, bearing pin 13 is provided with oscillating bearing 13-1.
The present invention requires n D > 2 d; N is the ratio of hinge wheel and minor sprocket diameter; D is lifting wheel diameter; D is gear diameter.This is that ratio due to the stroke of height and the hydraulic ram of lifting is greater than 1, just can make the height of lifting compare the stroke amplification of hydraulic ram.The length that hydraulic ram band carry-over bar moves be the stroke of hydraulic ram, problem for convenience of description, the stroke of supposing hydraulic ram equals π d, just in time driven gear 4-1 rotates a circle, hinge wheel 5 diameters are n with the ratio of minor sprocket 8 diameters, gear 4-1 rotates 1 week, hinge wheel 5 rotation 1 week, minor sprocket 8 rotation n are all, play hanging wheel 7 and also rotate n week, the length that a hanging wheel 7 drives lifting ropes to move is n π D, owing to being movable pulley structure, the height of lifting is that half of lifting rope movable length is n π D/2, so require n π D > 2 d.The diameter of said gear 4-1, hanging wheel 7 diameter, large and small sprocket diameter refer to each reference diameter.
To each parameter in the present invention, should do comprehensive consideration, according to the requirement that user is different, parameter is chosen, make gear 4-1 diameter, play hanging wheel 7 diameter d, large and small sprocket wheel diameter mutually more suitable than n.
During lifting, the piston rod of hydraulic ram 2 stretches out forward.By rack-and-pinion 4, straight-line motion is converted to and is rotatablely moved, two wheels that are comprised of hinge wheel, minor sprocket, a hanging wheel, the second track adjusting wheel and lifting rope drive hoisting cross beams 21 to promote each.
Claims (7)
1. transmission device is lifted by crane in a driving, comprise the hydraulic ram (2) and the hoisting cross beam (21) in driving girder (1) below that are arranged on driving girder (1) end face, it is characterized in that: driving girder (1) end face is provided with imput shaft (3), driven shaft (9) and a rack-and-pinion (4) of axle (3) left and right sides have the initiative, the tooth bar (4-2) of rack-and-pinion (4) drives slippage by described hydraulic ram (2), gear (4-1) is arranged on the upper imput shaft (3) that drives of imput shaft (3) and rotates, imput shaft (3) goes up and the front and back side in gear (4-1) is respectively provided with hinge wheel (5), each driven shaft (9) is provided with the minor sprocket (8) corresponding with hinge wheel (5) and one hanging wheel (7), between each hinge wheel (5) and corresponding minor sprocket (8), by chain link (6), connected, driving girder (1) end face is provided with two first track adjusting wheels (10) of respectively corresponding two hanging wheels (7), left and right sides at hoisting cross beam (21) is respectively provided with the second track adjusting wheel (14), upper corresponding two the second track adjusting wheels of the car owner's beam (1) of being expert at (14) connect two lifting ropes (15), every lifting rope (15) is by second track adjusting wheel (14) of homonymy, play hanging wheel (7) and the first track adjusting wheel (10), its terminal connects clump weight (17).
2. driving lifting transmission device according to claim 1, is characterized in that: described driving girder (1) end face is provided with bearing (18), and tooth bar (4-2) slides on bearing (18), and described imput shaft (3) is supported by pair of bearing (22).
3. transmission device is lifted by crane in driving according to claim 2, it is characterized in that: described bearing (18) is provided with guide rail (19), described tooth bar (4-2) bottom surface is provided with slide block (4-2-1), and tooth bar (4-2) slides on guide rail (19) by slide block (4-2-1).
4. driving lifting transmission device according to claim 1, is characterized in that: between the piston rod (2-1) of described hydraulic ram (2) and tooth bar (4-2), by bearing pin (13), connected, bearing pin (13) is provided with oscillating bearing (13-1).
5. transmission device is lifted by crane in driving according to claim 1, it is characterized in that: upper corresponding each second track adjusting wheel (14) of driving girder (1) is provided with a lifting rope tightener (16), and the top of described lifting rope (15) is connected on lifting rope tightener (16).
6. according to the driving lifting transmission device one of claim 1 to 5 Suo Shu, it is characterized in that: above-mentioned lifting rope (15) adopts wirerope, correspondingly, play hanging wheel (7), the second track adjusting wheel (14) and the first track adjusting wheel (10) and adopt pulley.
7. according to the driving lifting transmission device one of claim 1 to 5 Suo Shu, it is characterized in that: above-mentioned lifting rope (15) adopts chain, correspondingly, play hanging wheel (7), the first track adjusting wheel (10) and the second track adjusting wheel (14) and adopt sprocket wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210312258.6A CN102795552B (en) | 2012-08-29 | 2012-08-29 | Lifting drive mechanism of travelling crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210312258.6A CN102795552B (en) | 2012-08-29 | 2012-08-29 | Lifting drive mechanism of travelling crane |
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| Publication Number | Publication Date |
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| CN102795552A CN102795552A (en) | 2012-11-28 |
| CN102795552B true CN102795552B (en) | 2014-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210312258.6A Active CN102795552B (en) | 2012-08-29 | 2012-08-29 | Lifting drive mechanism of travelling crane |
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| CN104192724B (en) * | 2014-08-21 | 2016-04-13 | 广东南桂起重机械有限公司 | Special purpose crane produced by a kind of aluminium section bar |
| CN104310214A (en) * | 2014-09-30 | 2015-01-28 | 福建海源自动化机械股份有限公司 | Counter weight safety balance mechanism of girder of large portal frame |
| CN105174070B (en) * | 2015-10-20 | 2017-08-25 | 广东南桂起重机械有限公司 | A kind of aluminium section bar special purpose crane provided with lift cart |
| CN106348178A (en) * | 2016-11-11 | 2017-01-25 | 江苏天元智能装备股份有限公司 | Blank carrying vehicle |
| CN108931524B (en) * | 2018-04-27 | 2020-12-04 | 上海宝钢工业技术服务有限公司 | Track type crane beam fatigue crack detection device |
| CN108792986B (en) * | 2018-06-26 | 2020-02-11 | 山东宏跃网架钢结构有限公司 | Building assembly lifting device |
| CN109698463A (en) * | 2019-03-06 | 2019-04-30 | 潍坊科技学院 | A kind of the Electron-Optics Analysis system is provided with Wavelength tunable laser |
| CN110723634A (en) * | 2019-11-09 | 2020-01-24 | 国网河南省电力公司新安县供电公司 | Suspension device for mounting power equipment for power engineering |
| CN113511451B (en) * | 2021-07-07 | 2023-03-24 | 罗伯泰克自动化科技（苏州）有限公司 | Bridge type stacker shared by overlong multiple roadways |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2693737Y (en) * | 2004-04-27 | 2005-04-20 | 天津起重设备有限公司 | Flip crane |
| CN201214596Y (en) * | 2008-05-28 | 2009-04-01 | 厦门市建筑科学研究院集团股份有限公司 | Improved fixed-point hoisting double beam bridge crane for filling gas out of kettle |
| CN201343385Y (en) * | 2008-11-14 | 2009-11-11 | 天津起重设备有限公司 | Concentrated driving finished product checking crane |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011028879A1 (en) * | 2009-09-02 | 2011-03-10 | 21St Century Structures, Llc | Method and apparatus for vertically orienting precast concrete wall panels |
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2012
- 2012-08-29 CN CN201210312258.6A patent/CN102795552B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2693737Y (en) * | 2004-04-27 | 2005-04-20 | 天津起重设备有限公司 | Flip crane |
| CN201214596Y (en) * | 2008-05-28 | 2009-04-01 | 厦门市建筑科学研究院集团股份有限公司 | Improved fixed-point hoisting double beam bridge crane for filling gas out of kettle |
| CN201343385Y (en) * | 2008-11-14 | 2009-11-11 | 天津起重设备有限公司 | Concentrated driving finished product checking crane |
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| CN102795552A (en) | 2012-11-28 |
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