Double-hanging point headstock gear of large span shutter
A technology of double lifting points and hoists, applied in water conservancy projects, marine engineering, coastline protection, etc., can solve the problem of difficulty in meeting the stiffness value of hoists, and achieve the effects of light weight, small size and stable operation.
Inactive Publication Date: 2010-06-23
贾永明
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Problems solved by technology
This arrangement has clear force transmission and is more convenient for operation and maintenance. However, in the actual design process, when the lifting point distance of the hoist is relatively large, when calculating the stiffness of the drive shaft, even if two intermediate supports are added, the increase shaft diameter, it is also difficult to meet the rigidity value of the safe use of the hoist stipulated in the "Code for Design of Hoist in Hydropower and Water Conservancy Projects" DL / T5167-2002
Method used
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Embodiment 1
[0013] Refer to the manual attached figure 1 and attached figure 2 , the large-span gate double lifting point hoist of the present invention includes a motor 1, a reducer 2 connected with the motor 1 through a brake, a reel 5, a fixed pulley 6 and a movable pulley 7 connected with the gate lifting point, it also includes a rigid connection The central pinion 3 on the low-speed transmission output shaft of the reducer 2, and the large gear 4 meshing with the central pinion 3, the large gear 4 and the reel 5 are integral structures, and the reel 5 is wound with a fixed The pulley 6 and the movable pulley 7 control the wire rope of the gate lift. The large gears 4 are arranged symmetrically on the left and right sides. The rope grooves of the left and right reels 5 have opposite directions of rotation, and two wire ropes are respectively fixed from both ends of the reel. device. The reducer 2 is a vertical axis reducer.
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The invention relates to a large span sluice gate dual-hanging point hoist machine, in particular to a large span sluice gate dual-hanging point hoist machine used for the hydraulic engineering, and comprises a motor, a speed reducer which is connected with the motor by a brake, a reel, a fixed pulley, a movable pulley which is connected with the sluice gate hanging point, a central small gear which is rigidly connected with the low speed driving output axis of the speed reducer, and a big gear which is meshed with the central small gear; wherein, the big gear and the reel which is winded with the steel rope controlling the lifting and the descending of the sluice gate by the fixed pulley and the movable pulley form the integrated structure. The invention is only provided with a driving mechanism, does not need a long shaft drive and solves the problem of the rigidity deficiency of a middle drive shaft in the conventional large span hoist machine.
Description
(1) Technical field [0001] The invention relates to a large-span gate double-hoisting point hoist, in particular to a large-span gate double-hoisting point hoist used in water conservancy projects, and belongs to the technical field of water conservancy machinery. (2) Background technology [0002] With the rapid development of my country's economy, the application of large-span gates in water conservancy projects has become more and more extensive. From the perspective of the overall layout of hydraulic structures, compared with small-span structures, large-span structures have the advantages of reasonable overall structure, convenient civil construction, low cost, and simplicity and beauty. In the traditional hoist, the two lifting points need to be connected by a transmission shaft to adjust the synchronization between the two lifting points. However, due to the existence of the transmission shaft, the lifting point distance of the hoist cannot be made too large, usually...
Claims
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IPC IPC(8): E02B7/20
Inventor 贾永明任淑娟刘东海王金华李玲
Owner 贾永明