Valve surface grinding device and grinding method thereof

A technology of a grinding device and a grinding method, which is applied to grinding driving devices, seat surface grinding machines, grinding machines, etc., can solve the problems of time-consuming, waste of manpower, and deep valve surface, and achieve the effect of simple grinding method and improving grinding efficiency.
CN104858745AActive Publication Date: 2015-08-26广州文冲船舶修造有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
广州文冲船舶修造有限公司
Publication Date
2015-08-26

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Abstract

The invention discloses a valve surface grinding device. The valve surface grinding device comprises a grinding unit, a sealing plate, an air compressing unit and a gas transmission pipe, wherein the grinding unit is arranged on the valve surface of the valve body of a check valve and closely attached to the valve surface to plug the opening of a valve seat; the sealing plate covers the outlet of a outlet cavity in a sealing mode; the air compressing unit is connected with the gas transmission pipe; the gas transmission pipe penetrates the sealing plate, is communicated with the outlet cavity of the valve body and transmits gas inside the air compressing unit into the outlet cavity so that the grinding unit can be jacked up and fall back repeatedly to hit the valve surface. Compared with the prior art, the valve surface grinding device is arranged on the valve surface, gas is filled into the outlet cavity of the valve body, and the grinding unit can be jacked up and fall back repeatedly to hit the valve surface, so that reciprocating hit grinding of the valve surface can be achieved, a simpler grinding manner can be obtained, slide marks on the valve surface can be avoided, and the grinding efficiency can be effectively improved.
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Description

technical field

[0001] The invention relates to a grinding device and method, in particular to a grinding device applied to a valve face and a grinding method thereof. Background technique

[0002] As a valve used in fluid pipelines, the globe valve is widely used because of its simple structure and good sealing performance. see figure 1 , which is a schematic structural view of the existing shut-off valve 10 . A commonly used globe valve 10 includes a valve body 11 , a valve seat 12 , a valve disc 13 , a valve stem 14 and a valve cover 15 . The valve body 11 is provided with a cavity for accommodating fluid, and the valve seat 12 is disposed in the cavity and divides the cavity into an inflow cavity 111 and an outflow cavity 112 . The valve seat 12 is provided with a valve seat opening 121 through which the inlet cavity 111 and the outlet cavity 112 are connected. The valve flap 13 is arranged in the inlet cavity 111 of the valve body 11 and is attached to the upper sur...

Claims

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