Xinhe Yonggu Water Conservancy Machinery Factory

一
Cast iron
Main uses of gates
Cast iron inlaid copper square gates are mainly used in water supply, drainage, flood control, irrigation, water conservancy and hydropower projects to cut off and dredge the flow of water or adjust the water level. Designed and produced according to the general standards of the Ministry of Construction and the American standards. It adopts a unique outer arc design, with a reasonable structure and even stress. It is made of high-quality gray cast iron or ductile iron, and is ground after precision machining to achieve plane contact sealing and good sealing performance. When the sealing water-stopping performance decreases, it can be Solved by adjusting the wedge device.
2. Structural Characteristics of Cast Iron Gate
The cast iron gate is composed of door frame, gate plate, guide rail, seal strip, drive screw, lifting block nut
/ lifting lugs and adjustable sealing mechanism, among which the door frame and gate plate
/>They are all made of high-quality gray cast iron or ductile iron
The guide rails are arranged symmetrically and are connected to the ends of the door frame with stainless steel bolt positioning pins
For small and medium-diameter gates, the guide rails can be connected with the door frame The length of the cast-in-one guide rail is generally the full opening height of the gate. Therefore, the overall structure has high strength, high rigidity, high wear resistance and corrosion resistance, and has good pressure-bearing capacity.
Sealing is achieved by wedge tightening of the wedge device. The sealing material is copper alloy or rubber, which is ground after precision machining, so the sealing performance is good.
Using pre-embedded steel plates or pre-embedded bolts for installation, it is easy to install, debug, use and maintain, and has a long service life.
Complete varieties and specifications, wide adaptability.
Used in conjunction with the hoist
The gate is the working part, and the hoist is the executive part for opening and closing the gate. The hoist is driven by a human motor or a pneumatic hydraulic mechanism to drive the gear, worm, and worm of the transmission device. In operation, the drive nut or screw is rotated to cause the gate shaft to move vertically up and down, thereby opening or closing the gate to achieve the purpose of shutting off water or adjusting water level.
Main technical performance parameters of three cast iron gates
Models and specifications
Square gate open pole type
~
Main performance indicators of cast iron copper-inlaid square gate
Gate seal The surface fit clearance is
㎜, and the thickness of the sealing seat is greater than
㎜.