Down-the-hole service gate arrangement structure operated by double-lifting-point inverted hanging type hydraulic hoist

Abstract

The invention discloses a down-the-hole service gate arrangement structure operated by a double-lifting-point inverted hanging type hydraulic hoist. The device comprises a pair of machine frames whichare arranged at the top of a dam and used for mounting the inverted hanging type hydraulic hoist, the hydraulic hoist is connected with a door body arranged in a door groove, a sill, a main rail anda reverse rail are arranged in the door groove, the door body is provided with a main wheel, a side guide wheel, a reverse sliding block and a main water stop which are matched with the main rail andthe reverse rail, and an anti-water-jetting water stop which is matched with the door body is further arranged on the breast wall of the door groove. An overhauling platform is arranged above the doorgroove, and a movable main rail and a movable reverse rail are vertically arranged on the overhauling platform; and a mounting platform close to the top of the dam body is further arranged above theoverhauling platform, and a hydraulic pump station connected with the hydraulic hoist is arranged on the mounting platform. Vibration of the plane working gate can be effectively avoided, the dam faceis kept tidy, no protruding large-size building or equipment exists, and daily maintenance work of the dam body is facilitated.

Description

technical field [0001] The invention relates to the metal structure arrangement of discharge structures in water conservancy projects, in particular to an arrangement structure of a down-the-hole working gate operated by an upside-down hydraulic hoist with double suspension points. Background technique [0002] The working gate of the discharge structure of the water conservancy project is usually selected according to the size of the gate hole and the design water head. For medium-sized pivot projects, if the downstream water level is relatively high, the fixed hoist hoist M1 can generally be used (see figure 1 ) to open and close the submerged hole plane working gate, or use the vertical hydraulic hoist M2 (see figure 2 ) Open and close the gate valve type working gate. For the former, since the gate and hoist are flexibly connected by wire ropes, the working gate is prone to vibration when controlling discharge; for the latter, the hydraulic cylinder used is installed ...

AI Technical Summary

Problems solved by technology

For the former, since the gate and hoist are flexibly connected by wire ropes, the working gate is prone to vibration when controlling discharge; for the latter, the hydraulic cylinder used is installed on the top frame of the gate pier, and the hydraulic cylinder The piston rod is directly connected with the gate, which greatly alleviates the vibration of the gate. However, the overall investment of this gate arrangement is high, and the hoist needs to be erected on the frame platform, so that the hoist and its machine room protrude six inches from the top of the tower. ~7 meters, seriously affecting the dam surface landscape and daily maintenance operations

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