A kind of k-type rolling and opening double rams
A double-gate, K-type technology, applied in the field of valve gates, can solve the problems of large resistance, effort, and time-consuming when opening and closing, and achieve the effects of good sealing performance, simple and reasonable structure, and small frictional resistance
Active Publication Date: 2016-01-13
JIANGSU SUYAN VALVE MASCH CO LTD
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Problems solved by technology
In the existing structure, because the wedge is used to push the gate to move to both sides, the resistance when opening and closing is very large, and it is time-consuming and laborious
Method used
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[0015] The present invention mainly includes a main flashboard 1 and an auxiliary flashboard 2. The main and auxiliary flashboards 1 and 2 can be tightly attached to each other and can slide up and down mutually by the spring locking mechanism arranged on the side. The main and auxiliary gates 1 and 2 are provided with diversion holes 7, which can control the medium flow of the valve and realize the opening and closing of the valve.
[0016] The bonding surfaces of the main and auxiliary rams 1 and 2 are "K"-shaped, in which the main ram 1 is a concave K surface, and the auxiliary ram 2 is a convex K surface; the main and auxiliary rams 1 and 2 are attached to each other. Rollable steel balls 8 are arranged between the combined K-shaped surfaces; the steel balls 8 are placed in the raceways between the K-shaped surfaces on the main and auxiliary rams 1 and 2. See figure 1 .
[0017] The raceways are composed of two mated raceways 3 and 9 respectively arranged on the K-shaped...
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The invention relates to a gate disc type valve, in particular to a K-shaped rolling and supporting double gate disc. A main gate disc body 1 and a subsidiary gate disc body 2 are attached to each other through a spring clamping mechanism arranged on the side face of the main gate disc body 1 and the side face of the subsidiary gate disc body 2. The combination surfaces where the main gate disc body 1 and the subsidiary gate disc body 2 are mutually attached are in a K shape, wherein the combination surface of the main gate disc body 1 is a concave K-shaped surface, and the combination surface of the subsidiary gate disc body 2 is a convex K-shaped surface; a steel ball 8 capable of rolling is arranged between the combination surfaces where the main gate disc body 1 and the subsidiary gate disc body 2 are mutually attached. The steel ball 8 is arranged in a raceway between the K-shaped surface on the main gate disc body 1 and the K-shaped surface on the subsidiary gate disc body 2. The raceway is composed of two raceway bodies (3 and 9) on the main gate disc body 1 and the subsidiary gate disc body 2 respectively, wherein the raceway body 3 and the raceway body 9 are combined oppositely, the raceway body 3 on the gate disc body on one side is a semicircular raceway body, and the raceway body 9 on the gate disc body on the other side is an involute-shaped raceway body. The K-shaped rolling and supporting double gate disc has the advantages that friction force is low when a valve is opened and closed, so that labor is saved greatly; besides, the double gate disc is stable and free of vibration; meanwhile, micro adjustment and control can be conducted on medium flow.
Description
technical field [0001] The invention relates to a gate for a valve, in particular to a K-type rolling and opening double gate. Background technique [0002] The gate is an important part in the valve to control the opening and closing of the valve and regulate the flow of the medium. [0003] At present, the traditional double gate valves use an angled wedge in the middle of the two gates. When the wedge moves downward under the action of force, it pushes the two gates to open to both sides, and the valve seat Tightly stick to each other, so as to open or close the flow hole, realize the opening and closing of the valve, and adjust the flow of the medium. In the existing structure, since the wedge is used to push the gate to move to both sides, the resistance is very large when opening and closing, and it is time-consuming and laborious. Contents of the invention [0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the a...
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IPC IPC(8): F16K3/314F16K3/18
CPCF16K3/18F16K3/314
Inventor 韩正海韩雪萍李成明王峰
Owner JIANGSU SUYAN VALVE MASCH CO LTD