Connection positioning device between valve shaft and valve plate of butterfly valve
A positioning device and valve shaft technology, applied in valve devices, lift valves, engine components, etc., can solve the problems of scrapped cone pins, low efficiency, and difficulty in mass production, saving materials, reducing costs, and high assembly efficiency. Effect
Inactive Publication Date: 2012-11-14
扬州罗克特种阀门有限公司
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Problems solved by technology
[0002] In the prior art, the valve shaft and the valve plate of the butterfly valve are generally connected by taper pins. This connection method needs to be matched during the assembly process, which is difficult and inefficient. It is also difficult to carry out mass production on the assembly line, and After disassembly, the taper pin is scrapped and cannot be reused, which increases the cost
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[0008] Such as figure 1 As shown, the valve plate 1 of the present invention includes a valve disc 3 and a valve shaft seat 4, the valve shaft seat 4 is provided with a vertical through hole 5 for passing through the valve shaft 6, and the valve shaft seat 4 is provided with a valve shaft seat for positioning connection The circular positioning hole 7 arranged laterally on the valve shaft 6 is provided with a wedge-shaped groove 8 at a position in contact with the circular positioning hole 7 on one side of the valve shaft 6, and a wedge-shaped pin 1 is inserted in the circular positioning hole 7. , the wedge-shaped pin 1 has the same diameter as the circular positioning hole 7, and the side contacting with the valve shaft 6 is a semi-cylindrical body with an inclined surface matched with the wedge-shaped groove 8 of the valve shaft 6.
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The invention relates to a connection positioning device between a valve shaft and a valve plate of a butterfly valve, relates to the technical field of valve manufacturing, and particularly relates to a connection positioning and transmission torquer between the valve shaft and the valve plate of the butterfly valve. The valve plate provided by the invention comprises a valve clack and a valve shaft base, wherein the valve shaft base is provided with a vertical through hole used for penetrating through a valve shaft, the valve shaft base is provided with a round locating hole which is transversely arranged and used for positioning the connecting valve shaft, and a wedge groove is arranged at one side of the valve shaft in contact with the round locating hole; and the round locating hole is internally provided with a wedge-shaped pin in a penetrating manner, the diameter of the wedge-shaped pin is the same with the round locating hole, and a semi-cylinder of an inclined plane which is matched with the wedge groove of the valve shaft is contacted with one side of the valve shaft. The connection positioning device provided by the invention has the advantages that the process manufacturing is easy, the assembly and disassembly are convenient, the carryover moment is large, the manufacturing and assembly efficiency is high, in addition, the wedge-shaped pin is reusable, the material is saved, and the cost is lowered.
Description
technical field [0001] The invention relates to the technical field of valve manufacturing, in particular to a device for connection, positioning and torque transmission between a valve shaft and a valve plate of a butterfly valve. Background technique [0002] In the prior art, the valve shaft and the valve plate of the butterfly valve are generally connected by taper pins. This connection method needs to be matched during the assembly process, which is difficult and inefficient. It is also difficult to carry out mass production on the assembly line, and After the disassembly, the taper pin is scrapped and cannot be reused, which increases the cost. Contents of the invention [0003] The object of the present invention is to provide a connection and positioning device between the valve shaft and the valve plate of a butterfly valve with high efficiency and easy disassembly. [0004] The technical solution to achieve the above purpose is: the connection and positioning...
Claims
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IPC IPC(8): F16K1/48F16K1/36F16K1/22
Inventor 何余
Owner 扬州罗克特种阀门有限公司
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