Device for grinding valve clack of safety valve
A grinding device and safety valve technology, which is applied in the direction of grinding devices, grinding machine tools, metal processing equipment, etc., can solve the problems of mechanical scrapping and difficulty in grinding surface flatness, and achieve the effect of improving grinding quality and grinding efficiency
Active Publication Date: 2012-05-30
PETROCHINA CO LTD
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Problems solved by technology
The grinding disc is made of steel, and the flatness of the grinding disc decreases after a certain number of safety valve sealing surfaces are ground during the service cycle, and it is extremely difficult to repair the flatness of the grinding surface, and even the entire machine is scrapped due to the flatness of the grinding disc.
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Embodiment 1
[0015] Embodiment 1: The present invention is further described in detail by taking a grinding device for a safety valve disc as an example.
[0016] see figure 1 . The grinding device of the safety valve flap of the present invention is mainly composed of a lower support plate 1, a bearing 2, a gear fixing nut 3, a driven gear 4, a lower pressing plate 5, a screw A6, a washer 7, a reduction motor 8, a driving gear 9, a retaining ring 10. The screw B11, the grinding body 12, the upper support plate 14, the upper pressure plate 15, the spring limit washer 16, the spring 17, the nut 18, the swing shaft 19 and the screw C20 are composed. There are three bearing holes perpendicular to the upper plane on the lower support plate 1, the center lines of the three bearing holes are on the same straight line, and three bearings 2 are fixed in the three bearing holes; The screw A6 is fixed with a lower pressing plate 5, the lower pressing plate 5 has three holes, and the lower edges of...
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The invention discloses a device for grinding the valve clack of a safety valve, which is applied to the grinding of the valve clack of a safety valve. Three bearings are fixed on a lower backing plate; a central shaft of the lower end of a driving gear is fixed in the central hole of a middle bearing; a deceleration motor is fixed at the lower end of the driving gear and is fixed at the lower part of the lower backing plate; two driven gears are fixed in bearings on two sides and are respectively engaged with the driving gear; two oscillating shafts are respectively and vertically fixed on the upper end surfaces of the driven gears; the bearings are fixed in the bearing hole of an upper backing plate; the oscillating shaft passes through the central hole of a spring spacing washer; the upper part of the oscillating shaft is sheathed with a compression spring and a nut; and the upper end surface of the driving gear is provided with a round groove in which a grinding body is inserted. The device has the effect of grinding the valve clack of a full lift safety valve, changing manual grinding into motor-driven grinding, and improving grinding quality and grinding efficiency.
Description
technical field [0001] The invention relates to a special device for grinding a valve flap of a safety valve, in particular to a mechanical device for grinding the sealing surface of a valve flap of a full-open type safety valve. Background technique [0002] The grinding machine of the existing safety valve disc relies on a reducer to drive the grinding disc to rotate, and manually grinds the safety valve disc on the grinding disc, and the grinding quality depends on the technical level of the operator. The grinding disc is a steel body. After grinding a certain number of safety valve sealing surfaces during the service cycle, the flatness of the grinding disc is reduced, and it is extremely difficult to repair the flatness of the grinding surface. Even the entire machine is scrapped due to the flatness of the grinding disc. [0003] Chinese Patent Publication No. CN2656082Y provides "a grinding device for the sealing surface of a safety valve". Including gear assembly, di...
Claims
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IPC IPC(8): B24B37/34B24B37/00
Inventor 波拉提·阿努尔拜克加米纳·阿努尔拜克
Owner PETROCHINA CO LTD