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A flow adjustment, cam-type technology, applied in safety valves, balance valves, valve devices, etc., can solve the problems of high processing technology requirements for cones and cone cocks, troublesome assembly and debugging, and high manufacturing costs, and achieve low manufacturing costs. Convenience and long-lasting effect
Inactive Publication Date: 2013-05-22
JIANGSU SUYAN VALVE MASCH CO LTD
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Problems solved by technology
Its shortcomings are mainly complex structure, many parts, high processing technology requirements for the cone and the cone cock, troublesome assembly and debugging, high manufacturing cost, and large switching torque
Method used
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Embodiment Construction
[0016] Embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings:
[0017] The embodiment of the present invention is mainly composed of a valve body 1, a valve core, a sealing lining 2, a bearing 6, bearing seats 4, 5, and bearing seat covers 7, 8,
[0018] The spool is composed of a mandrel 9 and a cam 3. The cam 3 is arranged on the mandrel 9. The two are an integral casting, or the two are fixedly connected as a whole by bolts or connecting pieces. The cam 3 is a semi-cylindrical body with arc chamfers, and the center of the semi-cylindrical body of the cam 3 and the axis center of the mandrel 9 are the same center R1.
[0019] The valve core is arranged in the valve chamber of the valve body 1, and the core shaft 9 of the valve core is arranged eccentrically with the valve chamber. The two ends of the core shaft 9 of the valve core are supported on the valve body 1 by the bearing 6 and the bearing seats 4 and...
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Abstract
The invention relates to a valve, in particular to an eccentric cam flow regulation control valve. A valve core is arranged in a valve cavity of a valve body (1), two ends of the valve core are supported on the valve body through a bearing (6), a bearing seat (4) and a bearing seat (5), and the valve core is composed of a core shaft (9) and a cam (3). The eccentric cam flow regulation control valve is characterized in that the valve core and the valve cavity are arranged in an eccentric mode, a sealing inner liner (2) is arranged on the inner wall of the valve cavity, and a filtering hole for enabling medium to penetrate is formed in the sealing inner liner (2). One end of the core shaft (9) is built-in, and the other end of the core shaft (9) is external. A hexagonal or quadrilateral shaft head (11) capable of being adjusted by a wrench is arranged on the external end of the core shaft (9), and a flow regulation locating plate (10) capable of locating the rotary motion of the core shaft (9) in the circumferential direction is arranged on a bearing seat cover (7) of the external end of the core shaft (9). The eccentric cam flow regulation control valve had the advantages of being small in opening torque, stable and adjustable in medium flow, simple in whole structure and long in service life.
Description
technical field [0001] The invention relates to a valve, in particular to an eccentric cam flow regulating control valve. Background technique [0002] Flow regulating control valves are widely used in petroleum, natural gas, chemical and other industries. At present, the traditional flow control valve is a PTFE-lined plug valve, which consists of a valve body, a PTFE bushing, a cock, a PTFE triangular ring, a PTFE diaphragm, a metal diaphragm, a pressure ring, a valve Cover, wall plate seal, limit block, anti-noise spring, packing gland, ball, handle, etc., the structure is a straight-through flow channel, the valve body, valve cover, and cock can be cast carbon steel or stainless steel, and the valve body is lined PTFE, the plug is pressed against the body and bonnet connecting bolts. Its shortcomings are mainly complex structure, many parts, high processing technology requirements for the cone and the cone cock, troublesome assembly and debugging, high manufacturing cos...
Claims
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Application Information
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