CN102718137A - Novel lower trolley structure of shipbuilding gantry crane - Google Patents
Novel lower trolley structure of shipbuilding gantry crane Download PDFInfo
- Publication number
- CN102718137A CN102718137A CN2011100795683A CN201110079568A CN102718137A CN 102718137 A CN102718137 A CN 102718137A CN 2011100795683 A CN2011100795683 A CN 2011100795683A CN 201110079568 A CN201110079568 A CN 201110079568A CN 102718137 A CN102718137 A CN 102718137A
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- dolly
- fixed pulley
- following
- lower trolley
- shaft
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Abstract
The invention discloses a novel lower trolley structure of a shipbuilding gantry crane, comprising two end beams, wherein the bottoms of the two ends of each end beam are both provided with a travelling mechanism, a lower trolley fixed pulley beam is welded between the two end beams, two main beams and the fixed pulley beam form an H-shaped beam structure, a support is fixed on the lower end surface of the fixed pulley beam, a pulley shaft is fixed on the support, fixed pulleys are arranged on the pulley shaft. According to the invention, the output shaft of a lifting motor is connected with the input shaft of a reducer, the output shaft of the reducer is connected with one end of a floating shaft, the other end of the floating shaft is connected with a small gear, the small gear is engaged with a large gear coaxial with a drum, wherein the reducer is arranged at one end of the lower trolley, the large gear and the small gear are arranged at the other end of the lower trolley, and the lower end surface of the large gear is lower than the upper surface of the lower trolley. The lower trolley structure effectively reduces the self-weight of the trolley, lowers the drum center altimeter lower trolley total height, and can reduce the total length of the lower trolley.
Description
Technical field
The present invention is specifically related to vehicle structure under a kind of hoisting crane, the novel vehicle structure down of particularly a kind of shipbuilding gantry crane.
Background technology
Following dolly in the shipbuilding gantry crane is used for moving to the target location to the weight lifting and with it, wherein descends dolly to have following trolley frame 20, and following trolley frame 20 is welded to each other by two following dolly girders and two butt beams and constitutes, wherein two whole bearing loads of girder.Between two butt beams, be welded with two following dolly fixed pulley beams; Following dolly fixed pulley 30 is located on two following dolly fixed pulley beams and is positioned at pulley beam top; The base of following dolly lifting mechanism reel is placed on the two butt beams; Following carriage walking mechanism is placed on respectively under two following dolly girders, and its structure is as shown in fig. 1.The output shaft of lifting motor 1 is connected with the input shaft of reductor 2 in the dolly lifting mechanism; The output shaft of reductor 2 links together through coupler 3 and miniature gears 4; Miniature gears 4 meshes together with big gear wheel 5; Wherein reductor 2, coupler 3, miniature gears 4, big gear wheel 5 all are located at down the same end of trolley frame, and its structure as shown in Figure 2.
The shortcoming of prior art:
1. the dolly deadweight is too big.Following dolly fixed pulley place uses fixedly fixed pulley of twin-spar construction.The dolly girder, dolly end carriage structure design is unreasonable, stressed dispersion.Miniature gears directly connects reductor through coupler makes its same end that all is located at down trolley frame, has therefore occupied half the platform, has increased the length of time dolly.The reel center height is too high, increases dolly rainproof cover height down.
2. the reel center height is too high.Following dolly fixed pulley is installed in down on the dolly fixed pulley beam, and is positioned at pulley beam top, owing to need leave enough safety distances between fixed pulley and the reel, therefore must increase the center height of reel.The reel center height increases, and need do reel base end opening bonding area greatly, increases the stability of reel base, and it is very big that the intensity of following dolly reel base is done.And the end carriage box house also needs and the reel base to muscle.The vibrations that following dolly reel center produces than higher luck row can produce fatigue to following dolly reel base weld, and are safe in utilization very unfavorable to dolly.
3. descend the dolly bottom-to-top-height too high.Following dolly fixed pulley is placed on down on the dolly fixed pulley beam, and is positioned at pulley beam top, because must leave certain safety distance between fixed pulley and the reel, and the center height of dolly reel base under this invisible increase.And must leave safety distance between following dolly machine room and the reel, and the height overall of dolly constantly increases under therefore causing, and it is big that the windward side of following dolly machine room becomes, and increase is the trolley travelling resistance down.The increase of following dolly height overall can make the corresponding lengthening of the supporting leg of dolly, in order to increase very heavy that the stability that goes up the dolly supporting leg usually can do.
4. descend the dolly length overall oversize.Miniature gears directly connects reductor through coupler makes its same end that all is located at down trolley frame, has therefore occupied half the platform, has increased the length of time dolly, and the effective travel of dolly span scope is reduced, and the operation blind area of dolly under the gauntry crane is increased.
Summary of the invention
The present invention provides a kind of shipbuilding gantry crane novel vehicle structure down; Purpose is to solve the prior art problem; A kind of deadweight that alleviates dolly is provided, reduces the novel vehicle structure down of dolly bottom-to-top-height under the reel center height meter, this structure can also reduce the total length of dolly down simultaneously.
The present invention's technical scheme that adopts of dealing with problems is:
The novel vehicle structure down of shipbuilding gantry crane includes two butt beams, and bottom, every butt beam two ends is provided with traveling gear.Between two butt beams, be welded with a following dolly fixed pulley beam, two girders and fixed pulley beam form H type girder construction, have constituted the following trolley frame of carrying effect.The fixed pulley beam is fixed with support on the lower surface, is fixed with sheave shaft on the support, and fixed pulley is located on the sheave shaft.The lifting motor output shaft is connected with the reductor input shaft; Speed reducer output shaft is connected with floating axle one end; The floating axle other end is connected with miniature gears, and miniature gears is with meshing together with the coaxial big gear wheel of reel, and wherein reductor is positioned at an end of trolley frame down; Big gear wheel and miniature gears are positioned at the other end of following trolley frame, and the lower surface of big gear wheel is lower than plane on the following trolley frame.
Beneficial effect of the present invention: following dolly fixed pulley beam adopts the structure of single-beam, has reduced the use of material, not only alleviates dolly overall weight down, and cost-cutting.Fixed pulley reversal of the natural order of things is in fixed pulley beam bottom, solved reserve between time dolly fixed pulley and the reel safety distance problem.The lower surface of following dolly big gear wheel is lower than trolley frame down, can reduce substructure heights such as reel, miniature gears, reductor, drg, motor, therefore can reduce whole dolly height.The reduction of corresponding roller center height can increase the stability of reel base, has also reduced the reel base area simultaneously, and under same trolley travelling resistance, following dolly can reduce the lengthening of going up the dolly supporting leg, makes dolly lighter.The miniature gears of following wheeling mechanism connects with reductor through floating axle, and each parts of lifting mechanism are distributed to down the trolley frame two ends, has reduced the area that takies, the length of trolley platform under shortening, the total length of trolley frame under controlling.Following carriage walking mechanism is installed in down below the dolly end carriage.Following dolly end carriage forms H type structure with following dolly fixed pulley beam.Reduce the overall weight of dolly under the gauntry crane, practice thrift manufacturing cost.
Description of drawings
Fig. 1 is the prior art structural representation;
Fig. 2 is the prior art lifting mechanism;
Fig. 3 is a front view of the present invention;
Fig. 4 is a left view of the present invention;
Fig. 5 is a birds-eye view of the present invention;
Fig. 6 is the structural representation of following trolley frame.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is described further.
The novel vehicle structure down of shipbuilding gantry crane shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6; Include two following dolly end carriages 6; Between two butt beams 6, be welded with a following dolly fixed pulley beam 8; Two girders and fixed pulley beam form H type girder construction, have constituted the following trolley frame 100 of carrying effect.The fixed pulley beam is fixed with support 9 on 8 lower surfaces, is fixed with sheave shaft 10 on the support 9, and fixed pulley 11 is located on the sheave shaft 10.The output shaft of lifting motor 12 is connected with the input shaft of reductor 13; The output shaft of reductor 13 is connected with floating axle 14 1 ends; Floating axle 14 other ends are connected with miniature gears 15, and miniature gears 15 is with meshing together with the coaxial big gear wheel 16 of reel, and wherein reductor 13 is positioned at an end of trolley frame 100 down; Big gear wheel 16 and miniature gears 15 are positioned at the other end of trolley frame 100 down, and the lower surface of big gear wheel 16 is lower than trolley frame 100 down.
Dolly fixed pulley beam 8 adopts the structure of single-beams under in the structure design in the present embodiment; Following dolly end carriage 6 forms H type structure with following dolly fixed pulley beam 8; Fixed pulley 11 reversal of the natural order of things is in fixed pulley beam 8 bottoms, solved like this reserve between time dolly fixed pulley 11 and the reel safety distance problem.Plane on the trolley frame 100 under the lower surface of following dolly big gear wheel 16 is lower than; Being about to down, dolly reel big gear wheel 16 parts sink to down under the trolley platform face; Substructure heights such as reel, miniature gears, reductor, drg, motor can be reduced, therefore whole dolly height can be reduced.Also reduced the reel base area accordingly, under same trolley travelling resistance, dolly can reduce the lengthening of supporting leg, makes dolly lighter.The miniature gears 15 of following wheeling mechanism connects with reductor 13 through floating axle 14; Each parts of lifting mechanism are distributed to down the trolley frame two ends; Reduced the area that takies, shortened the length of trolley platform down, control is the total length of trolley frame 100 down; The effective travel of dolly span scope is increased, reduce the operation blind area of dolly under the gauntry crane.Following carriage walking mechanism is installed in down below the dolly end carriage.In sum, can reduce the overall weight of dolly under the gauntry crane in this structure, practice thrift manufacturing cost.
Claims (1)
1. the novel down vehicle structure of shipbuilding gantry crane; Include two butt beams; It is characterized in that: bottom, every butt beam two ends is provided with traveling gear; Between two butt beams, be welded with a following dolly fixed pulley beam, two girders and fixed pulley beam form H type girder construction, have constituted the following trolley frame of carrying effect; The fixed pulley beam is fixed with support on the lower surface, is fixed with sheave shaft on the support, and fixed pulley is located on the sheave shaft; The lifting motor output shaft is connected with the reductor input shaft; Speed reducer output shaft is connected with floating axle one end; The floating axle other end is connected with miniature gears, and miniature gears is with meshing together with the coaxial big gear wheel of reel, and wherein reductor is positioned at an end of trolley frame down; Big gear wheel and miniature gears are positioned at the other end of following trolley frame, and the lower surface of big gear wheel is lower than plane on the following trolley frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100795683A CN102718137A (en) | 2011-03-31 | 2011-03-31 | Novel lower trolley structure of shipbuilding gantry crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100795683A CN102718137A (en) | 2011-03-31 | 2011-03-31 | Novel lower trolley structure of shipbuilding gantry crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102718137A true CN102718137A (en) | 2012-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100795683A Pending CN102718137A (en) | 2011-03-31 | 2011-03-31 | Novel lower trolley structure of shipbuilding gantry crane |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112320587A (en) * | 2020-10-30 | 2021-02-05 | 江苏核电有限公司 | Variable lifting point trolley based on low clearance structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2230019C1 (en) * | 2003-04-10 | 2004-06-10 | Общество с ограниченной ответственностью "Производственная фирма "АСК" | Bridge crane trolley |
| CN2641001Y (en) * | 2003-06-12 | 2004-09-15 | 大连重工·起重集团有限公司 | Bogie of bridge crane |
| CN201165449Y (en) * | 2007-11-23 | 2008-12-17 | 杭州华新机电工程有限公司 | Double lifting motor safe crab |
| CN101973487A (en) * | 2010-09-30 | 2011-02-16 | 南通润邦重机有限公司 | Low headroom trolley for crane |
| CN201961970U (en) * | 2011-03-31 | 2011-09-07 | 江苏象王起重机有限公司 | Novel lower trolley structure of shipbuilding gantry crane |
-
2011
- 2011-03-31 CN CN2011100795683A patent/CN102718137A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2230019C1 (en) * | 2003-04-10 | 2004-06-10 | Общество с ограниченной ответственностью "Производственная фирма "АСК" | Bridge crane trolley |
| CN2641001Y (en) * | 2003-06-12 | 2004-09-15 | 大连重工·起重集团有限公司 | Bogie of bridge crane |
| CN201165449Y (en) * | 2007-11-23 | 2008-12-17 | 杭州华新机电工程有限公司 | Double lifting motor safe crab |
| CN101973487A (en) * | 2010-09-30 | 2011-02-16 | 南通润邦重机有限公司 | Low headroom trolley for crane |
| CN201961970U (en) * | 2011-03-31 | 2011-09-07 | 江苏象王起重机有限公司 | Novel lower trolley structure of shipbuilding gantry crane |
Non-Patent Citations (1)
| Title |
|---|
| 冯肇瑞等: "《化工安全技术手册》", 28 February 1993 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112320587A (en) * | 2020-10-30 | 2021-02-05 | 江苏核电有限公司 | Variable lifting point trolley based on low clearance structure |
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Application publication date: 20121010 |