Detection tool for detecting skipping of conical surface of cylinder cover valve seat ring
A valve seat ring and inspection tool technology, applied in the direction of measuring devices, mechanical devices, mechanical measuring devices, etc., can solve the problems of high cost, limited use range, low measurement accuracy, etc., to facilitate processing, save detection time, improve The effect of detection accuracy
Inactive Publication Date: 2014-12-10
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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Problems solved by technology
[0004] The positioning rod and measuring head of the first type of inductance or pneumatic measuring instrument are integral structures, which can only be measured for a single product, and the scope of use is limited, and the cost is high; Non-perpendicular contact with the valve seat ring, not a real cone runout, but an indirect measurement, there is a systematic error, and the measurement accuracy is low
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[0027] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0028] like figure 1 As shown, a checker for detecting the beating of the cone surface of the cylinder head valve seat ring includes: a dial indicator 1, a body 5 and a measuring rod 7. Among them, the dial gauge 1 is a mechanical gauge with an accuracy of 0.01 mm, which is used to visually display the runout value of the cone surface of the seat ring. like figure 2 As shown, preferably, the upper end 501 of the body 5 is provided with a through hole 503, which requires high machining accuracy and position accuracy, and the inner hole needs to be finely reamed. The axis of the through hole 503 obliquely intersects the axis of the upper end 501 of the body 5 , and the dial indicator 1 is inserted into the through hole 503 . The axis of the through hole 503 is determined by the position of the cone surface of the cylinder head valve seat ring,...
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The invention discloses a detection tool for detecting skipping of a conical surface of a cylinder cover valve seat ring. The detection tool comprises a body, a dial gauge, a detection rod, wherein the dial gauge is obliquely inserted to the upper end of the body, a measuring head of the dial gauge perpendicularly contacts with the conical surface of the cylinder cover valve seat ring, and the detection rod is perpendicularly arranged at the lower end of the body. Due to the facts that the dial gauge is obliquely inserted to the upper end of the body and the measuring head of the dial gauge perpendicularly contacts with the conical surface of the cylinder cover valve seat ring, systematic errors caused by non-perpendicular contact measurement of conventional manual detection tools can be eliminated, detection precision is improved, and detection time is saved. Further, the detection tool is simple in structure and convenient to process.
Description
technical field [0001] The invention belongs to a detection device for a vehicle engine, in particular to a detection tool for detecting the beating of a cone surface of a cylinder head valve seat ring. Background technique [0002] When the engine is working, the combustible gas is ignited after being compressed in the combustion chamber of the cylinder head, and the seat ring bears high thermal and mechanical loads, which requires the seat ring to have a high degree of sealing. If the beating of the cone surface of the seat ring is out of tolerance, it will lead to poor contact between the valve and the seat ring during work, causing the center axis of the seat ring to deviate, which will not only affect heat conduction but also accelerate the rapid wear of the conduit hole, and ultimately reduce the overall performance of the engine. decline. In the process of engine processing, the detection of seat ring runout is an essential item, and its detection results directly af...
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IPC IPC(8): G01B5/00
Inventor 杨健黄浩段昌凯
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD