CN108168401B - Device for measuring protrusion height of oil sprayer - Google Patents
Device for measuring protrusion height of oil sprayer Download PDFInfo
- Publication number
- CN108168401B CN108168401B CN201711174719.7A CN201711174719A CN108168401B CN 108168401 B CN108168401 B CN 108168401B CN 201711174719 A CN201711174719 A CN 201711174719A CN 108168401 B CN108168401 B CN 108168401B
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- positioning sleeve
- arc
- rod
- threaded
- shaped
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/003—Measuring of motor parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Catching Or Destruction (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention provides a fuel injector protrusion height measuring device which comprises an arc-shaped block, a guide rod, a positioning sleeve and a dial indicator, wherein one of two opposite surfaces of the arc-shaped block is a plane part, the other is an arc-shaped part, the plane part is provided with a threaded hole, and the diameter of the arc-shaped part is the same as the inner diameter of a cylinder sleeve for mounting a fuel injector to be measured; the positioning sleeve is of a cylindrical structure, and a through inner hole is formed in the axis; the guide rod comprises a threaded part and a rod part at one end, the threaded part is screwed into the threaded hole, and the rod part penetrates through an inner hole of the positioning sleeve to be in clearance fit with the positioning sleeve; the rod part penetrates out of the positioning sleeve, and the end face of the rod part is used for being in contact with a measuring head of the dial indicator. The invention has the following advantages: the angle of the positioning sleeve and the angle of the oil sprayer mounting hole can be adjusted automatically, and the coaxiality of the positioning sleeve and the oil sprayer mounting hole is guaranteed, so that the measurement error caused by the mounting angle of the measuring device is reduced, the measured value is closer to the actual value, and the measurement precision is guaranteed.
Description
Technical Field
The invention belongs to the technical field of internal combustion engines, and particularly relates to a device for measuring the protruding height of an oil sprayer.
Background
The opposed piston engine and the opposed piston opposed cylinder engine have no cylinder cover and valve actuating mechanism and have fewer parts than the conventional engine, and fuel is injected into a combustion chamber from the side surface of a cylinder sleeve for combustion, and researches show that: in the engine with the fuel injector laterally installed, the protruding height of the fuel injector has great influence on the combustion performance of the combustion chamber, so that the power, the emission and the like of the engine are influenced.
Therefore, for the first developed engine with side-injection of the fuel injector, it is important to measure the protrusion height of the fuel injector.
Disclosure of Invention
In view of this, the present invention is directed to a device for measuring a protrusion height of an injector, so as to solve the problem of measuring the protrusion height of an injector installed on a side surface of a cylinder liner, that is, an injector installed perpendicular to an axis of the cylinder liner, in an opposed piston engine, an opposed piston opposed cylinder engine, and other injectors.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a fuel injector protrusion height measuring device comprises an arc-shaped block, a guide rod, a positioning sleeve and a dial indicator, wherein one of two opposite surfaces of the arc-shaped block is a plane part, the other is an arc-shaped part, a threaded hole is formed in the plane part, and the diameter of the arc-shaped part is the same as the inner diameter of a cylinder sleeve for mounting a fuel injector to be measured; the positioning sleeve is of a cylindrical structure, and a through inner hole is formed in the axis; the guide rod comprises a threaded part and a rod part at one end, the threaded part is screwed into the threaded hole, and the rod part penetrates through an inner hole of the positioning sleeve to be in clearance fit with the positioning sleeve; the rod part penetrates out of the positioning sleeve, and the end face of the rod part is used for being in contact with a measuring head of the dial indicator.
Furthermore, an annular groove part is arranged on the cylindrical surface of the cylindrical structure of the positioning sleeve, and an O-shaped ring is arranged in the groove part.
Furthermore, the end face of the rod part is a plane.
Compared with the prior art, the invention has the following advantages:
(1) the invention can self-adjust the angle of the positioning sleeve and the oil sprayer mounting hole and ensure the coaxiality of the positioning sleeve and the oil sprayer mounting hole, thereby reducing the measurement error caused by the mounting angle of the measuring device, leading the measured value to be closer to the actual value and ensuring the measurement precision.
(2) The invention has simple structure and easy realization.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of an arcuate block configuration of the present invention;
FIG. 3 is a front view of an arcuate block of the present invention;
FIG. 4 is a schematic view of the guide bar construction of the present invention;
fig. 5 is a schematic view of the structure of the positioning sleeve of the invention.
Description of reference numerals:
1-arc block, 11-threaded hole, 12-arc surface part, 13-plane part, 2-guide rod, 21-threaded part, 22-rod part, 3-O-shaped ring, 4-positioning sleeve, 41-threaded hole, 42-cylindrical surface, 43-groove part, 5-dial indicator, 6-oil injector bush, 7-cylinder sleeve and 8-oil injector.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The invention discloses a device for measuring the protruding height of an oil sprayer, which comprises an arc-shaped block 1, a guide rod 2, an O-shaped ring 3, a positioning sleeve 4 and a dial indicator 5 as shown in figures 1 to 5,
one of two opposite surfaces of the arc-shaped block 1 is a plane part 13, the other one is an arc-shaped part 12, the plane part 13 is provided with a threaded hole 11, and the diameter of the arc-shaped part 12 is the same as the inner diameter of a cylinder sleeve 7 for mounting a fuel injector to be tested;
the positioning sleeve 4 is of a cylindrical structure, a penetrating inner hole 41 is formed in the axis, an annular groove part 43 is formed in a cylindrical surface 42 of the cylindrical structure, and the O-shaped ring 3 is installed in the groove part 43 and is used for being matched with an oil sprayer installation hole;
the guide rod 2 comprises a threaded part 21 and a rod part 22 at one end, the threaded part 21 is screwed into the threaded hole 11, and the rod part 22 penetrates through an inner hole 41 of the positioning sleeve 4 to be in clearance fit with the positioning sleeve 4;
the rod part 22 penetrates out of the positioning sleeve 4, and the end face of the rod part is a plane and is used for being in contact with a measuring head of the dial indicator 5.
During measurement:
installing two O-shaped rings 3 into a groove part 43 of a positioning sleeve 4, then installing the positioning sleeve 4 into a fuel injector bush 6, enabling a guide rod 2 to penetrate through an inner hole 41 of the positioning sleeve 4 and a cylinder sleeve 7 and be screwed tightly to a threaded hole 11 of an arc-shaped block 1, rotating the guide rod 2 to enable the arc-shaped block 1 to be completely attached to the inner wall of the cylinder sleeve 7, then installing a dial indicator 5, ensuring that a measuring head of the dial indicator 5 is perpendicular to the end face of a rod part 22 of the guide rod 2, adjusting the dial indicator 5 to zero and then fixing the dial indicator, installing a fuel injector 8 and pressing the dial indicator, reading data of the dial indicator 5, namely the protruding height of the fuel injector, and completing measurement.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (3)
1. The utility model provides a sprayer protrusion height measuring device which characterized in that: comprises an arc-shaped block (1), a guide rod (2), a positioning sleeve (4) and a dial indicator (5),
one of two opposite surfaces of the arc-shaped block (1) is a plane part (13) and the other is an arc-shaped part (12), a threaded hole (11) is formed in the plane part (13), and the diameter of the arc-shaped part (12) is the same as the inner diameter of a cylinder sleeve (7) for mounting a fuel injector to be tested;
the positioning sleeve (4) is of a cylindrical structure, and a through inner hole (41) is formed in the axis;
the guide rod (2) comprises a threaded part (21) and a rod part (22) at one end, the threaded part (21) is screwed into the threaded hole (11), and the rod part (22) penetrates through an inner hole (41) of the positioning sleeve (4) to be in clearance fit with the positioning sleeve (4);
the rod part (22) penetrates out of the positioning sleeve (4), and the end face of the rod part is used for being in contact with a measuring head of the dial indicator (5).
2. A fuel injector protrusion height measuring device according to claim 1, characterized in that: an annular groove part (43) is arranged on a cylindrical surface (42) of the cylindrical structure of the positioning sleeve (4), and an O-shaped ring (3) is installed in the groove part (43).
3. A fuel injector protrusion height measuring device according to claim 1, characterized in that: the end surface of the rod part (22) is a plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711174719.7A CN108168401B (en) | 2017-11-22 | 2017-11-22 | Device for measuring protrusion height of oil sprayer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711174719.7A CN108168401B (en) | 2017-11-22 | 2017-11-22 | Device for measuring protrusion height of oil sprayer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108168401A CN108168401A (en) | 2018-06-15 |
| CN108168401B true CN108168401B (en) | 2020-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711174719.7A Active CN108168401B (en) | 2017-11-22 | 2017-11-22 | Device for measuring protrusion height of oil sprayer |
Country Status (1)
| Country | Link |
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| CN (1) | CN108168401B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109631723B (en) * | 2018-12-24 | 2020-10-13 | 新兴铸管（浙江）铜业有限公司 | Gas cylinder safety distance detection mechanism |
| CN110006310A (en) * | 2019-04-11 | 2019-07-12 | 北京公共交通控股（集团）有限公司 | Yuchai 6L Engine Series nozzle tip protrusion measuring table |
Citations (2)
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| CN201059945Y (en) * | 2007-06-07 | 2008-05-14 | 扬动股份有限公司 | Oil head height gauge of oil injector |
| CN103424053A (en) * | 2013-07-16 | 2013-12-04 | 东风朝阳朝柴动力有限公司 | Device for measuring projection height of engine piston |
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| JPS61149817A (en) * | 1984-12-25 | 1986-07-08 | Fuji Photo Film Co Ltd | Defect inspecting device for injection molding |
| DE19712374C2 (en) * | 1997-03-25 | 2001-07-19 | Bosch Gmbh Robert | Position and displacement sensor |
| CN201327369Y (en) * | 2008-12-17 | 2009-10-14 | 重庆宗申技术开发研究有限公司 | Device for measuring assembly height of diesel engine ejector |
| CN202938749U (en) * | 2012-11-30 | 2013-05-15 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Gauge for measuring lift of coupling part of common-rail oil injector |
| DE102013006875B4 (en) * | 2013-04-20 | 2021-02-11 | Jenoptik Industrial Metrology Germany Gmbh | Method for measuring the surface of an inner surface of a cylinder bore roughened in particular by high pressure water jets, sand or particle blasting, grooving or flame spraying |
| CN104654984A (en) * | 2013-11-20 | 2015-05-27 | 无锡麦铁精密机械制造有限公司 | Detection structure for exhaust gas inlet part of turbo shell |
| CN104374266A (en) * | 2014-08-01 | 2015-02-25 | 安徽天利动力股份有限公司 | Gauge for detecting protruding volume of cylinder cover oil injector hole |
| CN205940358U (en) * | 2016-08-30 | 2017-02-08 | 广西玉柴机器股份有限公司 | Sprayer protrusion height detection's auxiliary device |
| CN107179038B (en) * | 2017-06-26 | 2019-04-16 | 安徽江淮汽车集团股份有限公司 | A kind of engine piston protrusion measuring device |
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2017
- 2017-11-22 CN CN201711174719.7A patent/CN108168401B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201059945Y (en) * | 2007-06-07 | 2008-05-14 | 扬动股份有限公司 | Oil head height gauge of oil injector |
| CN103424053A (en) * | 2013-07-16 | 2013-12-04 | 东风朝阳朝柴动力有限公司 | Device for measuring projection height of engine piston |
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| Publication number | Publication date |
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| CN108168401A (en) | 2018-06-15 |
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