CN1785781A - Lifting mechanism and sling of large tonnage single hanging point crane - Google Patents
Lifting mechanism and sling of large tonnage single hanging point crane Download PDFInfo
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- CN1785781A CN1785781A CN 200510048139 CN200510048139A CN1785781A CN 1785781 A CN1785781 A CN 1785781A CN 200510048139 CN200510048139 CN 200510048139 CN 200510048139 A CN200510048139 A CN 200510048139A CN 1785781 A CN1785781 A CN 1785781A
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- retarder
- suspender
- lifting mechanism
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- 230000007246 mechanism Effects 0.000 title claims abstract description 41
- 238000004804 winding Methods 0.000 claims description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 239000000725 suspension Substances 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 230000000979 retarding effect Effects 0.000 claims description 4
- 239000002356 single layer Substances 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
The present invention provides a hoisting mechanism and spreader of large-tonnage single hanging point crane. It is mainly characterized by that said hoisting mechanism includes the following several components: two sets of fixed pulley groups, balancing lever devices, two reels, speed reducer, trolley and trolley carrier, trolley running mechanism and brake system. Said invention also provides the concrete structure and composition of said brake system.
Description
Technical field
The invention belongs to handling machinery, specially refer to the lifting mechanism and the suspender of large tonnage single hanging point crane.
Background technology
At present, the lifting mechanism of hoisting crane, general common structure and arrangement form is: an electrical motor links to each other with the high speed shaft of retarder by coupler, drive a reel by drum coupling on the slow-speed shaft of retarder, by top sheave group and running block steel rope is batched or emits, make suspender realize rising or descending.This arrangement form adapts to the lifting mechanism of medium and small hoisting crane.Adopt this arrangement form for hoisting capacity and the very big goliath of power of motor, then the trolley frame rigidity requirement is very high, the manufacturing process relative complex, and also the height dimension of dolly is very big, and motor, steel rope type selecting be difficulty comparatively.
There is a kind of lifting mechanism of hoister in large tonnage to comprise vehicle frame now, arranges drum coupling, fixed pulley group, steel rope compensating bar device, brake system between two electrical motors, coupler, reductor, reel, reel and the retarders of installing at its vehicle frame; Wherein two electrical motors drive also connection reducer by the drive coupling of gear drive coupling, floating axle and the band brake dish of high speed shaft, and brake system is on the input high speed shaft of retarder service brake and additional brake to be housed; Retarder has two input shafts and four output shafts, and drives four roll devices by the reel drive coupling; Its roll device is arranged symmetrically in line of centers, and both sides are installed in respectively on four angles of vehicle frame; Retarder is installed in the center of vehicle frame, the both sides that are arranged in retarder of two electrical motor symmetries, and the fixed pulley group has quadruplet, being arranged near the end carriage place of trolley frame and being positioned at the both sides of electrical motor of symmetry.Though it has improved the stressed of trolley frame, make the trolley frame stress balance, but structure is not too compact and comparatively complicated comparatively speaking, the suspender of being joined is many suspension centres, make also relative complex of hanger structure, thereby make the weight of trolley frame, lifting mechanism, suspender of hoisting crane relatively large, improved manufacturing cost and use cost.
Summary of the invention
Overlap, obviously improve the force-bearing situation of trolley frame, reduced the rigidity requirement to trolley frame, trolley frame need not to carry out integrally annealed, and is very little to the retarder influence even trolley frame produces bulk deformation, guaranteed the gear meshing precision.
2, two reels are arranged in the both sides of retarder, two motors and fixed pulley group, compensating bar device are arranged in the inboard, and trolley frame is stressed simple clear and definite, and the dolly oad is very little, reduced the left and right sides limit size of dolly height and suspender, suspender shape triangular in shape connects, and is simple and compact for structure, is connected with traditional big equalizing bar, weight alleviates significantly, therefore the suspender contraction in length has enlarged the suspension centre working space, and the utilization of factory building is had tangible benefit.
3, can adopt idle pulley to link to each other between the two electrical motor high speed gear shafts, when a motor et out of order, another motor can undertake the full share of the labor at short notice.Also can adopt the differential connection of planet bag between the two electrical motor high speed gear shafts, behind a motor et out of order, still can be with another motor continuously for a long time with 1/2 command speed work.No matter adopt which kind of type of drive, messenger chain is safe and reliable can not to be transshipped, and guarantees that suspender monolateral winding can not occur, monolateral phenomenon such as stressed.
Description of drawings
Fig. 1 is the planar view of the lifting mechanism of large tonnage single hanging point crane;
Fig. 2 is the side arrangement figure of the lifting mechanism of large tonnage single hanging point crane;
Fig. 3 is the hanger structure scheme drawing;
Fig. 4 is that the steel rope of lifting mechanism twines scheme drawing.
The specific embodiment
Illustrated in figures 1 and 2, the lifting mechanism of hoister in large tonnage.It comprises lifting mechanism 2 and the lay winding wire ropes 4 and suspender 3 that is loaded on the trolley frame 1; Lifting mechanism is made up of two motors 201, big retarding device 202, reel 203, two fixed pulley group 204, compensating bar 205 and brake system; Double-motor links to each other with two input shafts of retarder at the inboard coupler 206 that passes through of retarder, and two input shafts of retarder are provided with synchronous connecting device between the level gears at a high speed, and connects two input shafts level gears at a high speed; There are two output shafts at the two ends of retarder, connect and the reel that drives two duplex windings of single layer by drum coupling, lifting mechanism with retarder axis center symmetric arrangement, two cover fixed pulley group and compensating bars
The present invention improves with regard to the deficiency of the above existing crane hoisting mechanism and the existence of suspender technology, and provide a kind of simple and compact for structure, stress equalization, safe and reliable, the lifting mechanism and the suspender of the large tonnage single hanging point crane of reduction deadweight and manufacturing cost.
The present invention with regard to technical scheme that above purpose adopts is: the lifting mechanism of hoister in large tonnage and suspender comprise the lifting mechanism and lay winding wire ropes and the suspender that are loaded on the trolley frame.Described lifting mechanism is made up of two motors, big retarding device, reel, fixed pulley group, compensating bar and brake system; Double-motor links to each other with two input shafts of retarder by coupler in the retarder inboard, and two input shafts of retarder are provided with synchronous connecting device between the level gear at a high speed, and connects two input shafts level gear at a high speed by synchronous connecting device; There are two output shafts at the two ends of retarder, connect and the reel that drives two duplex windings of single layer by drum coupling, be characterized in lifting mechanism with retarder axis center symmetric arrangement, two cover fixed pulley groups and balance leverages are contained in the inner side of two winding drum respectively; Retarder is installed on the end carriage of trolley frame, and the fulcrum of wheeling mechanism overlaps with the supporting-point of retarder.
Above-described brake system has two covers, both the plate disc brake in the service brake of adorning on the retarder input high speed shaft and the reel outside.The reel outside is a side of decelerator-free, can make the fulcrum relative equilibrium of trolley frame and wheeling mechanism like this.
Above-described suspender comprises side plate, crossbeam, suspension hook, nut and the thrust baring of moving two groups of pulleys, two shapes triangular in shape; Two groups of assembly pulleys are loaded on the side plate top of two shapes triangular in shape, the side plate bottom dress crossbeam of triangle, and on crossbeam, adorn suspension hook, nut, thrust baring.
And above-described lay winding wire ropes forms a complete osed top winding system with two groups of running blocks of suspender respectively by two reels, two groups of fixed pulley groups; Be that each reel has two steel ropes, a fag end of every steel rope is fixed on the two ends of reel, after steel rope twines by the running block on fixed pulley group and the suspender, another fag end is fixed on the termination of compensating bar, the two winding drum assembly pulley twines by biside plate and connects, and the two winding drum steel rope is stressed by compensating bar adjusting and balanced.
The lifting mechanism of hoister in large tonnage provided by the invention and suspender, it has substantive distinguishing features and significant technological advance:
1, the big retarding device acts directly on the end carriage of trolley frame, is contained in the inboard center of two winding drum respectively with wheeling mechanism supporting-point stressing device; Retarder is installed on the end carriage of trolley frame, and the fulcrum 101 of wheeling mechanism overlaps with the supporting-point of retarder.
Brake system has two covers, both the plate disc brake 208 in the service brake of adorning on the retarder input high speed shaft 207 and the reel outside.Be contained in the weight of the plate disc brake on the side reel of decelerator-free like this, the weight that can make whole lifting mechanism can relative equilibrium concerning the fulcrum of trolley frame and wheeling mechanism some.
The synchronous connecting device of retarder can adopt a pair of idle pulley to connect to come the two reels of driven in synchronism; Also can adopt a planet bag, utilize the planetary differential principle to realize the two reels of driven in synchronism.
Shown in Figure 3, the suspender of the lifting mechanism of hoister in large tonnage.Suspender mainly comprises side plate 302, crossbeam 303, suspension hook 304, nut 305 and the thrust baring 306 of two groups of running blocks 301, (pulley quantity is respectively 2 * 8 or 2 * 10) two shapes triangular in shape; Two groups of assembly pulleys are loaded on the side plate top of two shapes triangular in shape, the side plate bottom dress crossbeam of triangle, and on crossbeam, adorn suspension hook, nut, thrust baring.This is a kind of large tonnage single hanging point suspender, and it is simple in structure, and installation and removal are convenient.
Shown in Figure 4, the steel rope canoe of the lifting mechanism of hoister in large tonnage.Lay winding wire ropes 4 forms a complete osed top winding system with two groups of running blocks 301 of suspender 3 respectively by two reels 203, two groups of fixed pulley groups 204; Be that each reel 203 has two steel ropes, a fag end of every steel rope is fixed on the two ends of reel, after steel rope twines by the running block on fixed pulley group 204 and the suspender, another fag end is fixed on the termination of compensating bar 205, the two winding drum assembly pulley twines by biside plate and connects, and the two winding drum steel rope is stressed by compensating bar adjusting and balanced.
The lifting mechanism of hoister in large tonnage provided by the invention be connected suspender, be particularly suitable for the hoisting crane of the above single suspension centre of 600t.
Claims (4)
1, the lifting mechanism of large tonnage single hanging point crane and suspender comprise the lifting mechanism (2) and the lay winding wire ropes (4) and suspender (3) that are loaded on the trolley frame (1); Described lifting mechanism is made up of two motors (201), big retarding device (202), reel (203), fixed pulley (204), compensating bar (205) and brake system; It is characterized in that: double-motor links to each other with two input shafts of retarder by coupler in the retarder inboard, two input shafts of retarder are provided with synchronous connecting device (2021) between the level gear at a high speed, and connect two input shafts level gear at a high speed by synchronous connecting device; There are two output shafts at the two ends of retarder, connect and the reel that drives two duplex windings of single layer by drum coupling, lifting mechanism with retarder axis center symmetric arrangement, two cover fixed pulley groups and balance leverage are contained in the inner side of two winding drum respectively; Retarder is installed on the end carriage of trolley frame, and the supporting-point of wheeling mechanism (101) overlaps with the supporting-point of retarder.
2, the lifting mechanism of large tonnage single hanging point crane according to claim 1 and suspender, it is characterized in that: described brake system has two covers, both the plate disc brake (208) in the service brake of adorning on the retarder input high speed shaft (207) and the reel outside.
3, the lifting mechanism of large tonnage single hanging point crane according to claim 1 and suspender is characterized in that: described suspender comprises side plate (302), crossbeam (303), suspension hook (304), nut (305) and the thrust baring (306) of two groups of running blocks (301), two shapes triangular in shape; Two groups of assembly pulleys are loaded on the side plate top of two shapes triangular in shape, the side plate bottom dress crossbeam of triangle, and on crossbeam, adorn suspension hook, nut, thrust baring.
4, the lifting mechanism of large tonnage single hanging point crane according to claim 1 and suspender, it is characterized in that: described lay winding wire ropes (4) forms a complete osed top winding system with two groups of running blocks (301) of suspender (3) respectively by two reels (203), two groups of fixed pulley groups (204); Be that each reel has two steel ropes, a fag end of every steel rope is fixed on the two ends of reel, after steel rope twines by the running block on fixed pulley group (204) and the suspender, another fag end is fixed on the termination of compensating bar (205), the two winding drum assembly pulley twines by biside plate and connects, and the two winding drum steel rope is stressed by compensating bar adjusting and balanced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100481394A CN100366523C (en) | 2005-11-29 | 2005-11-29 | Lifting mechanism and sling of large tonnage single hanging point crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100481394A CN100366523C (en) | 2005-11-29 | 2005-11-29 | Lifting mechanism and sling of large tonnage single hanging point crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1785781A true CN1785781A (en) | 2006-06-14 |
| CN100366523C CN100366523C (en) | 2008-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100481394A Expired - Fee Related CN100366523C (en) | 2005-11-29 | 2005-11-29 | Lifting mechanism and sling of large tonnage single hanging point crane |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009003331A1 (en) * | 2007-06-29 | 2009-01-08 | Dalian Huarui Co., Ltd. | Double main girder and multi hanging point crane |
| CN101492141B (en) * | 2009-03-02 | 2011-04-20 | 大连华锐股份有限公司 | Large-scale crane hook set |
| CN102030273A (en) * | 2011-01-05 | 2011-04-27 | 长沙中联重工科技发展股份有限公司 | Tower crane, lifting mechanism thereof and method for leveling lifting mechanism |
| CN102180403A (en) * | 2011-05-31 | 2011-09-14 | 太原重工股份有限公司 | Crane hook device |
| CN102381627A (en) * | 2011-10-25 | 2012-03-21 | 太原重工股份有限公司 | Hoisting mechanism |
| CN102424279A (en) * | 2011-08-12 | 2012-04-25 | 中联重科物料输送设备有限公司 | Gate type bucket-wheel stacker reclaimer, and adjustment method and adjustment device for balance wheel thereof |
| CN102530722A (en) * | 2012-02-06 | 2012-07-04 | 青岛海西重机有限责任公司 | Pulley system of variable power crane hoisting hook and integrated system thereof |
| CN102838045A (en) * | 2012-09-11 | 2012-12-26 | 武桥重工集团股份有限公司 | Extra-heavy type offshore crane three-hoisting point lifting mechanism |
| CN102874709A (en) * | 2012-09-26 | 2013-01-16 | 芜湖合建路桥机械有限公司 | Double-pulley-block vertical lifting appliance capable of transversely moving |
| CN102874682A (en) * | 2012-09-26 | 2013-01-16 | 芜湖合建路桥机械有限公司 | Double-pulley hoisting connecting device |
| CN103224192A (en) * | 2013-04-11 | 2013-07-31 | 河南华北起重吊钩有限公司 | Lifting tool with six rotatable claw chains |
| CN104787675A (en) * | 2015-03-01 | 2015-07-22 | 周玉翔 | Automatic centrifugal dry machine material feeding lifting device |
| CN106144893A (en) * | 2016-06-16 | 2016-11-23 | 徐玉中 | A kind of fixed cleanout door machine dolly |
| CN112551402A (en) * | 2020-11-24 | 2021-03-26 | 冯志勇 | Hoisting mechanism of crane |
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| CN101333582B (en) * | 2008-07-10 | 2011-04-06 | 武汉钢铁(集团)公司 | On-line vacuum arrangement apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS5982290A (en) * | 1982-11-01 | 1984-05-12 | 株式会社日立製作所 | Device for tilting and turning over hanger for crane |
| CN1026224C (en) * | 1991-12-14 | 1994-10-19 | 太原重型机器厂 | Lift mechanism for casting hoist |
| CN1086358C (en) * | 1998-09-23 | 2002-06-19 | 太原重型机械(集团)有限公司 | Swing-proof device for crane slings |
| ES2166722B1 (en) * | 2000-07-14 | 2003-11-16 | Valpuesta Miguel Manue Zarraga | DRIVE SYSTEM FOR CABLE WINDERS. |
| CN1206155C (en) * | 2001-05-25 | 2005-06-15 | 太原重型机械(集团)有限公司 | Lift mechanism for crane and its steel cable winding method |
| CN2641001Y (en) * | 2003-06-12 | 2004-09-15 | 大连重工·起重集团有限公司 | Bogie of bridge crane |
| CN1184135C (en) * | 2003-07-11 | 2005-01-12 | 太原重型机械(集团)有限公司 | Lifting mechanism for casting crane |
| CN2642756Y (en) * | 2003-07-11 | 2004-09-22 | 太原重型机械(集团)有限公司 | Casting crane with four girders six rails and flexible overhead end girder |
-
2005
- 2005-11-29 CN CNB2005100481394A patent/CN100366523C/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009003331A1 (en) * | 2007-06-29 | 2009-01-08 | Dalian Huarui Co., Ltd. | Double main girder and multi hanging point crane |
| CN101492141B (en) * | 2009-03-02 | 2011-04-20 | 大连华锐股份有限公司 | Large-scale crane hook set |
| CN102030273A (en) * | 2011-01-05 | 2011-04-27 | 长沙中联重工科技发展股份有限公司 | Tower crane, lifting mechanism thereof and method for leveling lifting mechanism |
| CN102030273B (en) * | 2011-01-05 | 2012-09-12 | 中联重科股份有限公司 | Tower crane, lifting mechanism thereof and leveling method of lifting mechanism |
| CN102180403A (en) * | 2011-05-31 | 2011-09-14 | 太原重工股份有限公司 | Crane hook device |
| CN102424279A (en) * | 2011-08-12 | 2012-04-25 | 中联重科物料输送设备有限公司 | Gate type bucket-wheel stacker reclaimer, and adjustment method and adjustment device for balance wheel thereof |
| CN102381627A (en) * | 2011-10-25 | 2012-03-21 | 太原重工股份有限公司 | Hoisting mechanism |
| CN102530722A (en) * | 2012-02-06 | 2012-07-04 | 青岛海西重机有限责任公司 | Pulley system of variable power crane hoisting hook and integrated system thereof |
| CN102838045A (en) * | 2012-09-11 | 2012-12-26 | 武桥重工集团股份有限公司 | Extra-heavy type offshore crane three-hoisting point lifting mechanism |
| CN102874709A (en) * | 2012-09-26 | 2013-01-16 | 芜湖合建路桥机械有限公司 | Double-pulley-block vertical lifting appliance capable of transversely moving |
| CN102874682A (en) * | 2012-09-26 | 2013-01-16 | 芜湖合建路桥机械有限公司 | Double-pulley hoisting connecting device |
| CN102874682B (en) * | 2012-09-26 | 2015-10-28 | 芜湖合建路桥机械有限公司 | A kind of sister block lifting connecting device |
| CN102874709B (en) * | 2012-09-26 | 2016-07-20 | 芜湖合建路桥机械有限公司 | A kind of transversely movable double pulleies unit vertical lifting equipment |
| CN103224192A (en) * | 2013-04-11 | 2013-07-31 | 河南华北起重吊钩有限公司 | Lifting tool with six rotatable claw chains |
| CN104787675A (en) * | 2015-03-01 | 2015-07-22 | 周玉翔 | Automatic centrifugal dry machine material feeding lifting device |
| CN106144893A (en) * | 2016-06-16 | 2016-11-23 | 徐玉中 | A kind of fixed cleanout door machine dolly |
| CN112551402A (en) * | 2020-11-24 | 2021-03-26 | 冯志勇 | Hoisting mechanism of crane |
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| CN100366523C (en) | 2008-02-06 |
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Assignee: Taiyuan too heavy coal machine heavy reducer Co., Ltd. Assignor: TAIYUAN HEAVY INDUSTRY Co.,Ltd. Contract fulfillment period: 2009.10.29 to 2014.11.29 Contract record no.: 2009990001295 Denomination of invention: Lifting mechanism and sling of large tonnage single hanging point crane Granted publication date: 20080206 License type: Exclusive license Record date: 20091127 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.10.29 TO 2014.11.29; CHANGE OF CONTRACT Name of requester: TAIYUAN HEAVY MACHINERY GROUP COAL MACHINERY HEAVY Effective date: 20091127 |
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