CN105157501A

CN105157501A - Cylinder jacket inner surface inspection area positioning device

Info

Publication number: CN105157501A
Application number: CN201510229037.6A
Authority: CN
Inventors: 彭志凌; 刘婵媛; 赵意鹏; 张毅
Original assignee: North University of China
Current assignee: North University of China
Priority date: 2015-05-07
Filing date: 2015-05-07
Publication date: 2015-12-16
Anticipated expiration: 2035-05-07
Also published as: CN105157501B

Abstract

The invention provides a cylinder jacket inner surface inspection area positioning device, which comprises a dial, a scale and a slot. Two ends of the scale are provided with a flat mirror support and are respectively provided with two mirrors which are arranged in opposite directions and each form an angle of 45 degrees with the scale. A scale installation groove is disposed in the slot and has the same width as that of the scale. All the parts are assembled, the slot is rotated, the scale is translated, the scar position of an inner surface of a cylinder jacket can be observed through the mirrors, determined and recorded, and the inspection positioning can be completed. The device provided by the invention can be used for both angle positioning and depth positioning measurements; effectively reduces the errors caused in visual measurement when a line of sight cannot be perpendicular to a corroded area by using the principle of reflection from a plane mirror for measurement; and effectively reduces the errors caused by manual measurement by using the depth scale having a fan-shaped cross-section and a positioning block.

Description

Cylinder jacket inside surface flaw detection regional positioning device

Technical field

The design is used for the zone location in the measurement of engine jacket inside surface corrosion situation.

Background technology

Cylinder jacket in use, due to the reason such as mechanical load, thermal load, easily produces frictionally damage and is corroded, and equipment is tired and day by day aging, makes failure rate obviously increase.In at present existing cylinder jacket inside surface corrosion situation being measured, all utilize general measurer, as micrometer inside caliper or dial bore gage, guestimate corrosion zone location is carried out by range estimation, certain range estimation error can be produced, and existing angle and depth localization are by manually measuring respectively, during Data Integration, also very big error can be there is.

Summary of the invention

Technical matters to be solved by this invention is: during available engine cylinder jacket inside surface corrosion situation is measured, and mainly by range estimation guestimate corrosion zone location, and flaw detection district's angle and the degree of depth need be measured respectively, in data analysis, easily produce the error of calculation.

For above technical matters, the technical solution used in the present invention is: provide a kind of cylinder jacket inside surface flaw detection regional positioning device, this device is made up of index dial, rule and draw-in groove, and wherein rule two ends are provided with level crossing support, arrange mirror in opposite directions respectively, it becomes 45 with rule ^°angle, draw-in groove is provided with rule mounting groove, width is consistent with rule, each several part combination can be tested during measurement.

In test process: be first anchored on cylinder jacket by index dial, its inside surface is overlapped; Draw-in groove is put on index dial, the outside surface of draw-in groove is overlapped with the inside surface of index dial; Rule is put in draw-in groove, makes the outside surface of rule be close to the bottom land of draw-in groove; After having assembled, rotate draw-in groove and translation rule, the scar site of cylinder jacket inside surface can be observed by mirror, determine rear also record.

Described index dial is mainly used in location measured piece cylinder jacket and draw-in groove, and carrys out the circumferential position of positioning cylinder cover inside surface scar according to the scale on it, and index dial range is 360 ^°, scale division value is 1 ^°.

Described rule is mainly used in the axial height of MEASUREMENT OF STEAM inner surface of cylinder liner scar, and the range of rule is 300mm, and scale division value is 1mm.

Described draw-in groove is mainly used in location graduation chi and reading, and on index dial, rotate the circumferential position measuring inside surface scar.

Design concept of the present invention is the principle of reflection utilizing light, utilizes a pair mirror, and the scar not easily being carried out by cylinder jacket inside surface observing and measuring is transformed into easily observed position, thus improves degree of accuracy and the operability of measurement.

The invention has the beneficial effects as follows: measure while achieving angle orientation and depth localization; Flat mirror reflects principle is utilized to measure, because sight line can not the error that cause vertical with corrosion region when effectively reducing artificial visually examine; Utilize cross section to be fan-shaped deep calibration chi and locating piece, effectively reduce the error that manual measurement causes.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of cylinder jacket inside surface failure detector;

Fig. 2 is the schematic diagram of cylinder jacket inside surface failure detector MEASUREMENT OF STEAM cylinder sleeve;

Fig. 3 is graduated disk structure schematic diagram;

Fig. 4 is index dial scale schematic diagram;

Fig. 5 is rule structural representation;

Fig. 6 is rule scale schematic diagram;

Fig. 7 is rule scale zero schematic diagram;

Fig. 8 is notch schematic diagram;

In figure: 1, cylinder jacket; 2, index dial; 3, rule; 4, mirror; 5, draw-in groove; 6, level crossing support; 7, rule groove.

Embodiment

As shown in Figure 1, a kind of novel cylinder jacket inside surface flaw detection regional positioning device, its basic structure comprises index dial 2, rule 3 forms with draw-in groove 5; As shown in Figure 3, its scale as shown in Figure 4 for graduated disk structure; As shown in Figure 5, rule two ends are provided with level crossing support 6 to rule structure, arrange mirror in opposite directions respectively, angle at 45 ° with rule 3, and the scale of rule as shown in Figure 6,7; Draw-in groove 5 structure as shown in Figure 8, wherein draw-in groove 5 is provided with rule groove 7, and for installing rule 3, its width is consistent with rule.

Mode of operation in actual use: as shown in Figure 2, is anchored to index dial 2 on cylinder jacket 1, and its inside surface is overlapped; Draw-in groove 5 is put on index dial 2, the outside surface of draw-in groove 5 is overlapped with the inside surface of index dial 2; The rule 3 two ends being posted mirror 4 is put in draw-in groove 5, makes the outside surface of rule 3 be close to the bottom land of draw-in groove 5; After having assembled, as shown in Figure 2, rotate draw-in groove 5 and translation rule 3, the scar site of cylinder jacket inside surface can be observed by mirror 4, determine rear also record.

Involved in the present invention is a kind of special flaw detection regional positioning device, can carry out apparatus for regulating size according to measurand, and being such as applicable to internal diameter is 100mm, and external diameter is 130mm, the cylinder jacket of height within the scope of 0 ~ 300mm.Spirit or the essence of invention is not departed from because the application can specifically implement in a variety of forms, so be to be understood that, above-described embodiment is not limited to any aforesaid details, and should explain widely in the spirit and scope that claim limits, therefore fall into the adjustment of the overall dimension in claim or its equivalent scope or all should be claim to the choice for use of similar material contained.

Claims

1. a cylinder jacket inside surface flaw detection regional positioning device, it is characterized in that, device is made up of index dial, rule and draw-in groove, and wherein rule two ends are provided with level crossing support, arrange mirror in opposite directions respectively, and it becomes 45 with rule ^°angle, draw-in groove is provided with rule mounting groove, width is consistent with rule, each several part combination can be tested during measurement;

Described index dial is mainly used in location measured piece cylinder jacket and draw-in groove, and carrys out the circumferential position of positioning cylinder cover inside surface scar according to the scale on it, and index dial range is 360 ^°, scale division value is 1 ^°;

Described rule is mainly used in the axial height of MEASUREMENT OF STEAM inner surface of cylinder liner scar, and the range of rule is 300mm, and scale division value is 1mm;

Described draw-in groove is mainly used in location graduation chi and reading, and on index dial, rotate the circumferential position measuring inside surface scar;

In test process: be first anchored on cylinder jacket by index dial, its inside surface is overlapped; Draw-in groove is put on index dial, the outside surface of draw-in groove is overlapped with the inside surface of index dial; Rule is put in draw-in groove, makes the outside surface of rule be close to the bottom land of draw-in groove.