CN103486929A - Device and method for accurately aligning top dead center of internal combustion engine - Google Patents
Device and method for accurately aligning top dead center of internal combustion engine Download PDFInfo
- Publication number
- CN103486929A CN103486929A CN201310467728.0A CN201310467728A CN103486929A CN 103486929 A CN103486929 A CN 103486929A CN 201310467728 A CN201310467728 A CN 201310467728A CN 103486929 A CN103486929 A CN 103486929A
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- probe
- holder
- internal combustion
- dial gauge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention belongs to the technical field of debugging and detection of internal combustion engines, and relates to a device and method for accurately aligning a top dead center of an internal combustion engine. The device comprises a sliding sleeve (2), a fixing seat (10), a probe (5) and a dial indicator (1). The sliding sleeve is located in the sleeve-shaped fixing seat (10) and is in clearance fit with the fixing seat (10), a circular hole is formed in the upper portion of the fixing seat (10), a magnet (3) used for attracting the sliding sleeve (2) is inlaid in the circular hole, an annular clamping table (9) is arranged on the lower portion of the inner hole of the fixing seat, the probe (5) is located in the inner hole of the fixing seat (10) and the inner hole of the sliding sleeve (2), the middle section of the probe (5) is located in the inner hole between the lower end face of the sliding sleeve and the annular clamping table of the lower portion of the fixing seat, the diameter of the middle section of the probe (5) is larger than that of the outer circle of the sliding sleeve and the inner hole diameter of the annular clamping table (9) on the lower portion of the fixing seat, and the lower portion of the probe (5) stretches out of the fixing seat (10). The feeler pin of the dial indicator is inserted into the inner hole of the upper portion of the sliding sleeve and then is fixed on the device through a screw.
Description
Technical field
The invention belongs to internal combustion engine debugging detection technique field, relate to a kind of device and method of accurate centering internal combustion engine top dead centre.
Background technology
To complete machine, stable operation plays an important role the injection advance angle of internal combustion engine, if injection advance angle adjusts incorrect or precision is not high, internal combustion engine just there will be the abnormal occurrencies such as burning is bad, underpower, affect internal combustion engine serviceable life and economy, therefore when internal combustion assembling and maintenance, need to be calibrated injection advance angle.The calibration injection advance angle carries out in two steps, the first step: accurately find top dead centre (finding the piston top dead center of standard cylinder accurately) accurately; Second step: using the top dead centre of finding accurately as zero-bit, the size of determining injection advance angle from reading and the fly-wheel scale of dial gauge; As can be seen here, whether the top dead centre centering is accurate, will directly have influence on the precision of school tune injection advance angle.
The mode of current internal combustion engine centering top dead centre, by a probe and a dial gauge, coordinated, first probe base is contacted with top land, then prop up the probe top with dial gauge, measure the probe stroke, through after jiggering repeatedly, look for the intermediate value of getting the dial gauge reading, finally determine top dead centre.This centering mode running time is long, high to the requirement of operating personnel's level of skill, and centering is accurately low.
Summary of the invention
The objective of the invention is to propose a kind of device and method of accurate centering internal combustion engine top dead centre, accurately the centering top dead centre, reduce operate miss, guarantees the precision of injection advance angle, meets the requirement of the good operation of internal combustion engine.
The present invention completes its invention task by the following technical programs:
A kind of device of accurate centering internal combustion engine top dead centre, described device comprises sliding sleeve, holder, probe and dial gauge; Described sliding sleeve is sleeve-shaped, described dial gauge is arranged on the top of described sliding sleeve, the endoporus of described sliding sleeve is shoulder hole, the endoporus of top minor diameter is for installing the probe of dial gauge, the bottom larger diameter internal bore is the probe running space, the middle part of described sliding sleeve is provided with mounting hole view window I, for seeing constantly the position that noses into the rod operation; Described holder is sleeve-shaped, described sliding sleeve be positioned at described holder and with described holder be clearance fit, the length of described sliding sleeve is less than the length of described holder, the top of described holder has a circular hole and embedded magnet in circular hole, for adsorbing sliding sleeve, make the sliding sleeve can be because of the Gravitational sliding of self; Described holder is provided with mounting hole view window II, and view window II and the view window I on sliding sleeve on holder are overlapping, in order to see constantly the position that noses into rod motion; The cylindrical of holder center section is provided with convex shoulder, the end face laminating in convex shoulder lower surface and fuel injector for internal combustion engines hole, the cylindrical laminating in the cylindrical of holder bottom and fuel injector for internal combustion engines hole, the structure of two places laminating can be installed in the oil injector hole of internal combustion engine whole device; The endoporus bottom of holder has an annular snap platform, to prevent probe, with whole device, separates; The holder bottom is provided with air hole, for discharging the pressurized air in cylinder of internal-combustion engine; Described probe is positioned at the endoporus of described holder, sliding sleeve, described probe is long multidiameter, the upper and lower end face of described probe is smooth smooth measurement face, the interlude of described probe is in the lower surface and the endoporus between holder lower annular card platform of sliding sleeve, the interlude diameter of described probe is greater than the sliding sleeve outside diameter, and be greater than the internal orifice dimension of the annular snap platform of described holder bottom, while guaranteeing probe work, can move up by the jack-up sliding sleeve, and with whole device, do not separate, described holder is stretched out in the bottom of described probe; Described dial gauge is standard component, after the probe of described dial gauge inserts sliding sleeve top endoporus, and is screwed on device.
Adopt the method for said apparatus centering internal combustion engine top dead centre, first, by the annular snap platform laminating of the lower surface of the interlude of probe and holder endoporus below, make it gapless, dial gauge is installed on sliding sleeve top, due to the suction-operated of magnet, sliding sleeve can not fall, then described device is placed in the oil injector hole of internal combustion engine, make the end face laminating in convex shoulder lower surface and the fuel injector for internal combustion engines hole of holder, the cylindrical laminating in the cylindrical of holder bottom and fuel injector for internal combustion engines hole, then turning crankshaft, top land promotes probe and moves up, after the upper surface face of the interlude of probe has just withstood sliding sleeve, by dial gauge precompressed certain distance zeroing, lock dial gauge with holding screw, be rotated further bent axle, probe overcomes the absorption affinity of magnet, promote sliding sleeve to rising, in this process, the dial gauge pointer is constant, when reaching after top dead center, be rotated further bent axle, piston will move down, probe also can move down, slide over and keep static under the absorption of magnet, and the reading of dial gauge can diminish, rotate backward again bent axle, make piston withstand sliding sleeve up, when the reading of dial gauge is the precompressed value, this point is exactly the accurate top dead centre of standard cylinder.
The device and method of the accurate centering internal combustion engine top dead centre that adopts the present invention to propose, can realize precisely finding accurately of combustion motor piston top dead center position; Described device is easy to use, can effectively save the running time, reduces the requirement to operating personnel's level of skill.
The accompanying drawing explanation
The structural representation that Fig. 1 is apparatus of the present invention;
In figure: 1, dial gauge; 2, sliding sleeve; 3, magnet; 4, air hole; 5, probe; 6, holding screw; 7, view window II; 8, convex shoulder; 9, annular snap platform; 10, holder.
Embodiment
With embodiment, the present invention is further described by reference to the accompanying drawings:
As shown in Figure 1, a kind of device of accurate centering internal combustion engine top dead centre, described device comprises sliding sleeve 2, holder 10, probe 5 and dial gauge 1; Described sliding sleeve 2 is sleeve-shaped, described dial gauge 1 is arranged on the top of described sliding sleeve 2, the endoporus of described sliding sleeve 2 is shoulder hole, the endoporus of top minor diameter is for installing the probe of dial gauge, the bottom larger diameter internal bore is the probe running space, the middle part of described sliding sleeve 2 is provided with the view window I of mounting hole, for seeing constantly the position that noses into the rod operation; Described holder 10 is sleeve-shaped, described sliding sleeve 2 be positioned at described holder 10 and with described holder 10 be clearance fit, the length of described sliding sleeve 2 is less than the length of described holder 10, the top of described holder 10 has a circular hole and embedded magnet 3 in circular hole, for adsorbing sliding sleeve 2, make the sliding sleeve can be because of the Gravitational sliding of self; Described holder 10 is provided with the view window II 7 of mounting hole, and the view window II 7 on holder is overlapping with the view window I on sliding sleeve, in order to see constantly the position that noses into rod motion; The cylindrical of holder center section is provided with convex shoulder, the end face laminating in convex shoulder lower surface and fuel injector for internal combustion engines hole, the cylindrical laminating in the cylindrical of holder bottom and fuel injector for internal combustion engines hole, the structure of two places laminating can be installed in the oil injector hole of internal combustion engine whole device; The endoporus bottom of holder has an annular snap platform 9, to prevent probe, with whole device, separates; Holder is provided with air hole 4, for discharging the pressurized air in cylinder of internal-combustion engine; Described probe 5 is positioned at the endoporus of described holder 10, sliding sleeve 2, described probe 5 is long multidiameter, the upper and lower end face of described probe 5 is smooth smooth measurement face, the interlude of described probe 5 is in the lower surface and the endoporus between holder lower annular card platform of sliding sleeve, the interlude diameter of described probe 5 is greater than the sliding sleeve outside diameter, and be greater than the internal orifice dimension of the annular snap platform 9 of described holder bottom, while guaranteeing probe work, can move up by the jack-up sliding sleeve, and with whole device, do not separate, described holder 10 is stretched out in the bottom of described probe 5; Described dial gauge 1 is standard component, after the probe of described dial gauge inserts sliding sleeve top endoporus, and is screwed on device.
Adopt the method for said apparatus centering internal combustion engine top dead centre, first, by annular snap platform 9 laminatings of the lower surface of the interlude of probe 5 and holder endoporus below, make it gapless, on sliding sleeve 2 tops, dial gauge 1 is installed, due to the suction-operated of magnet 3, make the relative holder of sliding sleeve 2 keep static, then said apparatus is placed in the oil injector hole of internal combustion engine, make the end face laminating in convex shoulder lower surface and the fuel injector for internal combustion engines hole of holder, the cylindrical laminating in the cylindrical of holder bottom and fuel injector for internal combustion engines hole, then turning crankshaft, top land promotes probe 5 and moves up, after sliding sleeve 2 has just been withstood in the upper surface of the interlude of probe, by dial gauge precompressed certain distance zeroing, lock dial gauge with holding screw, be rotated further bent axle, probe overcomes the absorption affinity of magnet, promote sliding sleeve 2 to rising, in this process, the dial gauge pointer is constant, when reaching after top dead center, be rotated further bent axle, piston will move down, probe 5 also can move down, it is static that sliding sleeve 2 keeps under the absorption of magnet, and the reading of dial gauge can diminish, rotate backward again bent axle, make piston withstand sliding sleeve 2 up, when the reading of dial gauge 1 is the precompressed value, this point is exactly the accurate top dead centre of standard cylinder.
Claims (2)
1. the device of an accurate centering internal combustion engine top dead centre, it is characterized in that: described device comprises sliding sleeve (2), holder (10), probe (5) and dial gauge (1), described sliding sleeve (2) is sleeve-shaped, described dial gauge (1) is arranged on the top of described sliding sleeve (2), the endoporus of described sliding sleeve (2) is shoulder hole, the endoporus of top minor diameter is for installing the probe of dial gauge, the bottom larger diameter internal bore is the probe running space, the middle part of described sliding sleeve (2) is provided with the view window I of mounting hole, for seeing constantly the position that noses into the rod operation, described holder (10) is sleeve-shaped, described sliding sleeve (2) be positioned at described holder (10) and with described holder (10) for clearance fit, the length of described sliding sleeve (2) is less than the length of described holder (10), the top of described holder (10) has a circular hole and embedded magnet (3) in circular hole, for adsorbing sliding sleeve (2), make the sliding sleeve (2) can be because of the Gravitational sliding of self, described holder (10) also is provided with mounting hole view window II (7), and view window and the view window on sliding sleeve on holder are overlapping, in order to see constantly the position that noses into rod motion, the cylindrical of holder center section is provided with convex shoulder (8), the end face laminating in convex shoulder lower surface and fuel injector for internal combustion engines hole, the cylindrical laminating in the cylindrical of holder bottom and fuel injector for internal combustion engines hole, the structure of two places laminating can be installed in the oil injector hole of internal combustion engine whole device, the endoporus bottom of holder has an annular snap platform (9), to prevent probe (5), with whole device, separates, holder is provided with air hole (4), for discharging the pressurized air in cylinder of internal-combustion engine, described probe (5) is positioned at described holder (10), in the endoporus of sliding sleeve (2), described probe (5) is long multidiameter, the upper and lower end face of described probe (5) is smooth smooth measurement face, the interlude of described probe (5) is in the lower surface and the endoporus between holder lower annular card platform of sliding sleeve, the interlude diameter of described probe (5) is greater than the sliding sleeve outside diameter, and be greater than the internal orifice dimension of the annular snap platform (9) of described holder bottom, while guaranteeing probe work, can move up by the jack-up sliding sleeve, and with whole device, do not separate, described holder (10) is stretched out in the bottom of described probe (5), described dial gauge (1) is standard component, after the probe of described dial gauge inserts sliding sleeve top endoporus, and is screwed on device.
2. adopt the method for the device centering internal combustion engine top dead centre of the described a kind of accurate centering internal combustion engine top dead centre of claim 1, it is characterized in that: first by annular snap platform (9) laminating of the lower surface of the interlude of probe (5) and holder endoporus below, make it gapless, dial gauge (1) is installed on sliding sleeve top, due to the suction-operated of magnet (3), sliding sleeve (2) can not fall, then described device is placed in the oil injector hole of internal combustion engine, make the end face laminating in convex shoulder lower surface and the fuel injector for internal combustion engines hole of holder, the cylindrical laminating in the cylindrical of holder bottom and fuel injector for internal combustion engines hole, turning crankshaft, top land promotes probe (5) and moves up, after sliding sleeve (2) has just been withstood in the upper surface of the interlude of probe, by dial gauge (1) precompressed certain distance zeroing, with holding screw (6) locking dial gauge, be rotated further bent axle, probe overcomes the absorption affinity of magnet (3), promote sliding sleeve (2) to rising, in this process, the dial gauge pointer is constant, when reaching after top dead center, be rotated further bent axle, piston will move down, probe (5) also can move down, it is static that sliding sleeve (2) keeps under the absorption of magnet (3), and the reading of dial gauge can diminish, rotate backward again bent axle, make piston withstand sliding sleeve up, when the reading of dial gauge is the precompressed value, this point is exactly the accurate top dead centre of standard cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310467728.0A CN103486929B (en) | 2013-10-10 | 2013-10-10 | A kind of device and method of accurate centering internal combustion engine top dead centre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310467728.0A CN103486929B (en) | 2013-10-10 | 2013-10-10 | A kind of device and method of accurate centering internal combustion engine top dead centre |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103486929A true CN103486929A (en) | 2014-01-01 |
| CN103486929B CN103486929B (en) | 2016-02-17 |
Family
ID=49827350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310467728.0A Active CN103486929B (en) | 2013-10-10 | 2013-10-10 | A kind of device and method of accurate centering internal combustion engine top dead centre |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103486929B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104741916A (en) * | 2015-03-28 | 2015-07-01 | 广西玉柴机器股份有限公司 | Tool for adjusting upper seal center of crankshaft and mounting method thereof |
| CN105020078A (en) * | 2015-08-05 | 2015-11-04 | 河南柴油机重工有限责任公司 | Device for measuring fuel supply advance angle with oil dripping method and pre-lifting method at the same time |
| CN114367872A (en) * | 2022-01-10 | 2022-04-19 | 烟台艾迪液压科技有限公司 | Dial indicator assembly, calibration device based on same and alignment/clamping tool |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008309597A (en) * | 2007-06-14 | 2008-12-25 | Citizen Seimitsu Co Ltd | Contact type displacement sensor |
| CN201463785U (en) * | 2009-07-08 | 2010-05-12 | 天津雷沃动力股份有限公司 | Tool for aligning top dead center of piston of diesel engine |
| CN101825424A (en) * | 2010-05-14 | 2010-09-08 | 郭盈盈 | High-temperature and high-pressure small-size length measuring device |
| CN202361907U (en) * | 2011-11-14 | 2012-08-01 | 天津雷沃动力股份有限公司 | Tool for detecting top dead center of engine piston |
| CN203586975U (en) * | 2013-10-10 | 2014-05-07 | 河南柴油机重工有限责任公司 | Device for accurately aligning top dead center of internal combustion engine |
-
2013
- 2013-10-10 CN CN201310467728.0A patent/CN103486929B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008309597A (en) * | 2007-06-14 | 2008-12-25 | Citizen Seimitsu Co Ltd | Contact type displacement sensor |
| CN201463785U (en) * | 2009-07-08 | 2010-05-12 | 天津雷沃动力股份有限公司 | Tool for aligning top dead center of piston of diesel engine |
| CN101825424A (en) * | 2010-05-14 | 2010-09-08 | 郭盈盈 | High-temperature and high-pressure small-size length measuring device |
| CN202361907U (en) * | 2011-11-14 | 2012-08-01 | 天津雷沃动力股份有限公司 | Tool for detecting top dead center of engine piston |
| CN203586975U (en) * | 2013-10-10 | 2014-05-07 | 河南柴油机重工有限责任公司 | Device for accurately aligning top dead center of internal combustion engine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104741916A (en) * | 2015-03-28 | 2015-07-01 | 广西玉柴机器股份有限公司 | Tool for adjusting upper seal center of crankshaft and mounting method thereof |
| CN105020078A (en) * | 2015-08-05 | 2015-11-04 | 河南柴油机重工有限责任公司 | Device for measuring fuel supply advance angle with oil dripping method and pre-lifting method at the same time |
| CN114367872A (en) * | 2022-01-10 | 2022-04-19 | 烟台艾迪液压科技有限公司 | Dial indicator assembly, calibration device based on same and alignment/clamping tool |
| CN114367872B (en) * | 2022-01-10 | 2024-04-05 | 烟台艾迪液压科技有限公司 | Dial gauge assembly and calibrating device and alignment/clamping tool based on same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103486929B (en) | 2016-02-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103486929B (en) | A kind of device and method of accurate centering internal combustion engine top dead centre | |
| CN105953692A (en) | Valve lift measuring device and method | |
| CN110091165B (en) | Combined camshaft assembly phase angle adjusting device and method | |
| CN103411523A (en) | Piston reciprocating-type gasoline engine connecting rod deformation flaw detection ruler and detection method | |
| CN203586975U (en) | Device for accurately aligning top dead center of internal combustion engine | |
| CN103743322A (en) | Apparatus and method for detecting depth from fuel injector inclined plane taper hole to cylinder cover bottom surface | |
| CN201463785U (en) | Tool for aligning top dead center of piston of diesel engine | |
| CN103424053A (en) | Device for measuring projection height of engine piston | |
| CN203454940U (en) | Device for measuring top dead center of engine piston | |
| CN102878901A (en) | Device for measuring wall thickness difference of piston pin | |
| CN102359750B (en) | Check fixture for detecting interference of main oil gallery and connecting rod of diesel engine cylinder block | |
| CN203570484U (en) | Special tool for measuring stroke of oil sprayer | |
| CN108168401B (en) | Device for measuring protrusion height of oil sprayer | |
| CN202836449U (en) | Device for measuring wall thickness difference of piston pin | |
| CN107726958B (en) | Device and method for detecting depth of special-shaped throttle groove of plunger of fuel nozzle valve | |
| CN202938749U (en) | Gauge for measuring lift of coupling part of common-rail oil injector | |
| CN204902714U (en) | Ring flange locating hole position degree detection device | |
| CN111730301A (en) | High-precision engine cylinder block matching and mounting method for piston protrusion | |
| CN214892959U (en) | Measuring and detecting measuring tool | |
| CN203665374U (en) | Auxiliary tool for measuring deformation of holes of engine cylinders | |
| CN203163658U (en) | Depth testing fixture for spark-plug installation hole of engine cylinder cover | |
| CN220062840U (en) | Device for measuring verticality of mounting threaded hole on bearing cover of diesel engine body | |
| CN203385384U (en) | Reciprocating type piston petrol engine connecting rod deformation flaw detection ruler | |
| CN205785034U (en) | Diesel engine piston axis and bore axis parallelism detecting device | |
| CN201397234Y (en) | Phase measuring tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |