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Double-hanging point headstock gear of large span shutter

A technology of double lifting points and hoist, which is applied in water conservancy projects, sea area engineering, coastline protection, etc., can solve the problems that it is difficult to meet the rigidity value of the hoist, and achieve light weight, reduced axial size, and compact structure Effect

Inactive Publication Date: 2008-07-16
贾永明
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Double-hanging point headstock gear of large span shutter

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Embodiment 1

[0013] Referring to accompanying drawings 1 and 2 of the description, the hoist with double lifting points for a large-span gate of the present invention includes a motor 1, a reducer 2 connected to the motor 1 through a brake, a reel 5, a fixed pulley 6 and a gate lifting point. The movable pulley 7, which also includes a central pinion 3 rigidly connected to the output shaft of the low-speed transmission of the reducer 2, and a bull gear 4 meshing with the central pinion 3, the bull gear 4 is integrated with the reel 5 Structure, reel 5 is wound with the steel wire rope that controls gate lift by fixed pulley 6 and movable pulley 7. The big gears 4 are symmetrically arranged one on the left and one on the left, and the rope grooves of the left and right reels 5 have opposite directions of rotation, and two steel wire ropes are respectively fixed from the two ends of the reel 5. device. The reducer 2 is a vertical axis reducer.

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Abstract

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 double-suspension-point hoist for a large-span gate, in particular to a double-suspension-point hoist for a large-span gate used in water conservancy projects, and belongs to the technical field of water conservancy machinery. (2) Background technology [0002] With the rapid development of our country's economy, the application of large-span gates in water conservancy projects is becoming 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 simple and beautiful appearance. 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 canno...

Claims

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Application Information

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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
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