CN103322878B - Special detection tool for conical surface runout of cylinder cover valve seat of diesel engine - Google Patents
Special detection tool for conical surface runout of cylinder cover valve seat of diesel engine Download PDFInfo
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- CN103322878B CN103322878B CN201310272896.4A CN201310272896A CN103322878B CN 103322878 B CN103322878 B CN 103322878B CN 201310272896 A CN201310272896 A CN 201310272896A CN 103322878 B CN103322878 B CN 103322878B
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Abstract
The invention discloses a special checking fixture for conical surface runout of a valve seat of a cylinder cover of a diesel engine, which comprises a dial indicator, a shifting sleeve, a threaded pin, a plug, a steel ball, a core rod and a locking pin, wherein the lower part of the core rod is vertically fixed in an air valve guide pipe, the plug is fixed on the middle part of an inner hole of the shifting sleeve, the threaded pin passes through the shifting sleeve and is in clearance fit with the shifting sleeve, and one end head of the threaded pin is fixedly connected with the dial indicator. The axis of the locking pin is vertically intersected with the axis of the threaded pin, and one end of the locking pin abuts against the periphery of the threaded pin. The steel ball is arranged in the center of the end head of the upper end of the core rod, the lower end of the shifting sleeve is sleeved at the upper end of the core rod, the lower side of the plug is abutted against the steel ball, the shifting sleeve and the dial indicator are supported at the upper end of the core rod through the steel ball, and the end head of the contact pin of the dial indicator is abutted against the conical surface of the valve seat of. The invention has the advantages of light and compact structure, convenient use and low manufacturing cost, improves the measurement efficiency, meets the detection requirements of the production field on batch products, and reduces the detection cost.
Description
Technical field
The present invention relates to a kind of position deviation verifying attachment of machined part bellmouth, particularly a kind of specific purpose tool for cylinder cover valve seat conical surface glitch detection, belong to machined part detection technique field.
Background technology
Cylinder head is the Chief part of diesel engine, its machining precision is very large on the impact of the work quality of diesel engine, especially the relative positional accuracy of its valve seat conical surface and valve guide, the direct performance affecting diesel engine, the valve seat conical surface as certain type diesel engine cylinder head for ship must in the scope of 0.02mm to the run-out tolerance in valve guide hole, and position of related features requires very high.Therefore, the process of the necessary strict control cylinder lid valve seat conical surface, must strictly detect one by one to the positional precision of the cylinder cover valve seat conical surface of batch machining.Conventional detection method utilizes three-coordinates measuring machine to detect the valve seat conical surface of cylinder cover for diesel engine to the deviation of beating in valve guide hole, but three-coordinates measuring machine is longer for detection time, and cost is higher, is not suitable for detecting bulk article in production scene.
Summary of the invention
The object of this invention is to provide a kind of compact structure, appliance special for detecting beated by the diesel engine cylinder cover valve seat conical surface easy to use, improve detection efficiency.
The present invention is achieved by the following technical programs:
A kind of diesel engine cylinder cover valve seat conical surface is beated appliance special for detecting, and comprise dial test indicator, pulling sleeve, threaded, plug, steel ball, plug and locking pin, plug lower vertical is fixed in valve guide; Plug is fixed in the middle part of pulling sleeve endoporus, and threaded passes across pulling sleeve upper end, and coordinates with pulling sleeve upper gap, and termination, threaded one end is fixedly connected with dial test indicator; Locking pin is connected with pulling sleeve threaded upper ends, locking pin axis and threaded intersect vertical axis, and termination, locking pin one end is resisted against on threaded periphery; Steel ball is arranged on termination, plug upper end central authorities, and pulling sleeve lower end is enclosed within plug upper end, and coordinates with plug upper gap; Be resisted against on the downside of plug on steel ball, pulling sleeve is supported on plug upper end together with dial test indicator by steel ball; Dial test indicator contact pilotage termination is resisted against on the marine diesel valve seat conical surface.
Object of the present invention can also be realized further by following technical measures.
The aforesaid diesel engine cylinder cover valve seat conical surface is beated appliance special for detecting, wherein be provided with relief groove in the middle part of plug, plug lower end diameter D is greater than the plug mid diameter d on the downside of relief groove, plug upper diameter d1 on the upside of relief groove is less than plug mid diameter d, and plug bottom is by being vertically fixed in valve guide with the interference fit of valve guide endoporus.
The aforesaid diesel engine cylinder cover valve seat conical surface is beated appliance special for detecting, and wherein the difference of plug lower end diameter D and plug mid diameter diameter d is 0.04 ~ 0.07mm.
The aforesaid diesel engine cylinder cover valve seat conical surface is beated appliance special for detecting, and wherein termination, plug upper end central authorities are provided with cone shaped countersink, and steel ball is arranged in cone shaped countersink.
The aforesaid diesel engine cylinder cover valve seat conical surface is beated appliance special for detecting, and the heat treatment hardness of wherein said plug and pulling sleeve is HRc55 ~ 60.
The aforesaid diesel engine cylinder cover valve seat conical surface is beated appliance special for detecting, and the tolerance clearance of wherein said pulling sleeve lower end and plug upper end is 0.004 ~ 0.006mm.
Light structure of the present invention is compact, easy to use, low cost of manufacture, improve measurement efficiency, the present invention replaces the detection using three-coordinates measuring machine to beat to the diesel engine cylinder cover valve seat conical surface, meets the testing requirement of production scene to bulk article, reduces testing cost.
Advantage and disadvantage of the present invention, carries out figure explanation, these embodiments by the non-limitative illustration by preferred embodiment below, only provides as an example with reference to accompanying drawing.
Accompanying drawing explanation
Fig. 1 is cut-open view of the present invention;
Fig. 2 is the amplification plan view of Fig. 1.
Embodiment
Beat the embodiment of separate-blas estimation to the present invention with being described further below in conjunction with accompanying drawing and the diesel engine cylinder head for ship valve seat conical surface.
As depicted in figs. 1 and 2, the present invention includes dial test indicator 1, pulling sleeve 2, threaded 3, plug 4, steel ball 5, plug 6 and locking pin 7, relief groove 61 has been provided with in the middle part of plug 6, plug 6 lower end diameter D is greater than the plug 6 mid diameter d on the downside of relief groove 61, plug 6 upper diameter d1 on the upside of relief groove 61 is less than plug 6 mid diameter d, the difference of plug lower end diameter D and plug mid diameter d is 0.04 ~ 0.07mm, like this, lower large little taper shape is formed in the middle part of plug lower end and plug, plug 6 bottom is by being vertically fixed in valve guide 8 with the interference fit of valve guide endoporus 81.Plug 4 is fixed on in the middle part of pulling sleeve 2 endoporus by interference fit, the heat treatment hardness of pulling sleeve 2 and plug 6 is HRc55 ~ 60, the present invention in use, pulling sleeve 2 and plug 6 repeatedly need plug connection, both all have higher hardness, can wear extent be reduced, extend the serviceable life of pulling sleeve 2 and plug 6, reduce metrical error.Pulling sleeve 2 lower end of the present embodiment and the tolerance clearance of plug 6 upper end are 0.005mm, improve accuracy of detection.
Threaded 3 passes across pulling sleeve 2 upper end, and coordinates with pulling sleeve 2 upper gap, and termination, threaded 3 one end is fixedly connected with dial test indicator 1, and dial test indicator 1 can along threaded 3 up-down adjustment.Locking pin 7 is connected with pulling sleeve 2 threaded upper ends, and its axis and threaded 3 intersect vertical axis, termination, locking pin 7 one end is resisted against on threaded 3 periphery.The steel ball 5 of diameter 5mm is arranged on the cone shaped countersink 62 of plug 6 upper end termination central authorities, and threaded 3 other end termination is provided with threaded handwheel 31, locking pin 7 other end termination is provided with locking pin handwheel 71.Promote dynamic threaded handwheel 31, transverse shifting threaded 3, dial test indicator contact pilotage 11 termination can be made to fit on the detected marine diesel valve seat conical surface 100, be convenient to the deviation of beating accurately measuring the marine diesel valve seat conical surface 100 pairs of valve guide holes 81.
Turn locking pin handwheel 71, makes termination, locking pin 7 one end tightly be resisted against on threaded 3 periphery, locking screw thread pin 3, thus secures dial test indicator 1, avoids producing metrical error.Pulling sleeve 2 lower end is enclosed within plug 6 upper end, and coordinates with plug 6 upper gap, and tolerance clearance is 0.005mm, guarantees that dial test indicator 1 has higher accuracy of detection.Be resisted against on steel ball 5 on the downside of plug 4, steel ball 5 diameter of the present embodiment is 5mm, and steel ball 5 pulling sleeve 2 is supported on plug 6 upper end together with dial test indicator 1 by steel ball 5.The present invention adopts steel ball 5 to support pulling sleeve 2 and dial test indicator 1, owing to being point cantact on the downside of steel ball 5 and plug 4, improves pulling sleeve 2 together with the rotation precision of dial test indicator 1 around plug 6 axis.
The present invention is used to detect the process that the diesel engine cylinder cover valve seat conical surface beats as follows:
First plug 6 is extended upwardly in valve guide hole 81 from cylinder cover for diesel engine 80 lower vertical, be about 0.20mm because plug 6 upper diameter d1 is less than plug 6 mid diameter d, plug 6 top unhinderedly passes valve guide hole 81 smoothly; Again because plug 6 lower end diameter D is greater than the plug 6 mid diameter d on the downside of relief groove 61, plug 6 lower end is caused to be fixedly connected with because of interference fit with valve guide endoporus 81.Then pulling sleeve 2 lower end is enclosed within plug 6 upper end, then threaded 3 is passed across pulling sleeve 2 upper end, the high and low position of up-down adjustment dial test indicator 1, after transfer, dial test indicator 1 is threaded connection and is fixed on threaded 3 one end; Promote threaded handwheel 31, the position of left and right adjustment threaded 3, makes dial test indicator contact pilotage 11 termination be fitted on the detected marine diesel valve seat conical surface 100; Then turn locking pin handwheel 71, makes termination, locking pin 7 one end tightly be resisted against on threaded 3 periphery and locks threaded 3, thus truck dead lever clock gauge 1.
During detection, rotate pulling sleeve 2, make dial test indicator contact pilotage 11 termination around valve guide hole 81 axis, the diesel engine valve seat conical surface 100 rotates one week, the deviate of beating shown in dial test indicator 1 can be read.
Take off process of the present invention contrary with installation process of the present invention, first unload dial test indicator 1, then locking pin 7 is unclamped, take off threaded 3, take off pulling sleeve 2 again, knock termination, plug 6 upper end gently with wooden mallet, plug 6 vertical drop just can be made to depart from valve guide hole, bottom 81, then the present invention is installed on other diesel engine cylinder cover valve seat conical surfaces needing to detect.Repeat aforementioned process, the deviation of beating of other valve seat conical surfaces of diesel engine cylinder head for ship can be detected, convenient and swift, improve detection efficiency.
In addition to the implementation, the present invention can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of application claims.
Claims (1)
1. a diesel engine cylinder cover valve seat conical surface is beated appliance special for detecting, comprise dial test indicator, pulling sleeve, threaded, plug, steel ball, plug and locking pin, plug lower vertical is fixed in valve guide, threaded passes across pulling sleeve upper end, and coordinate with pulling sleeve upper gap, termination, threaded one end is fixedly connected with dial test indicator; It is characterized in that: plug is fixed in the middle part of pulling sleeve endoporus, and locking pin is connected with pulling sleeve threaded upper ends, locking pin axis and threaded intersect vertical axis, termination, locking pin one end is resisted against on threaded periphery; Steel ball is arranged on termination, plug upper end central authorities, and pulling sleeve lower end is enclosed within plug upper end, and coordinates with plug upper gap; Be resisted against on the downside of plug on steel ball, pulling sleeve is supported on plug upper end together with dial test indicator by steel ball; Dial test indicator contact pilotage termination is resisted against on the marine diesel valve seat conical surface; Relief groove is provided with in the middle part of plug, plug lower end diameter D is greater than the plug mid diameter d on the downside of relief groove, plug upper diameter d1 on the upside of relief groove is less than plug mid diameter d, and plug bottom is by being vertically fixed in valve guide with the interference fit of valve guide endoporus; Plug upper end termination central authorities are provided with cone shaped countersink, and steel ball is arranged in cone shaped countersink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310272896.4A CN103322878B (en) | 2013-07-02 | 2013-07-02 | Special detection tool for conical surface runout of cylinder cover valve seat of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310272896.4A CN103322878B (en) | 2013-07-02 | 2013-07-02 | Special detection tool for conical surface runout of cylinder cover valve seat of diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103322878A CN103322878A (en) | 2013-09-25 |
| CN103322878B true CN103322878B (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310272896.4A Active CN103322878B (en) | 2013-07-02 | 2013-07-02 | Special detection tool for conical surface runout of cylinder cover valve seat of diesel engine |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776353A (en) * | 2014-02-14 | 2014-05-07 | 温州市质量技术监督检测院 | Concentricity and ovality tester of rubber transmission wheel |
| CN104197803A (en) * | 2014-09-22 | 2014-12-10 | 安徽江淮汽车股份有限公司 | Detection tool for detecting skipping of conical surface of cylinder cover valve seat ring |
| CN105526841B (en) * | 2016-01-22 | 2018-07-27 | 中船动力有限公司 | Diesel engine cylinder cover valve seat conical surface bounce gauge and detection method |
| CN106403855A (en) * | 2016-11-15 | 2017-02-15 | 无锡富瑞德测控仪器股份有限公司 | Angle gauge for conical surface measurement and measurement and calculation method of angle gauge |
| CN109186397A (en) * | 2017-11-02 | 2019-01-11 | 上海机动车检测认证技术研究中心有限公司 | A kind of detection end face trip gear |
| CN109238193B (en) * | 2018-08-10 | 2021-04-20 | 玉柴联合动力股份有限公司 | Valve seat ring wear measuring method |
| CN109839048B (en) * | 2019-03-26 | 2024-01-26 | 青岛华瑞汽车零部件股份有限公司 | Gauge for detecting runout of conical surface of air outlet hole of oil inlet hole of brake |
| CN109990682B (en) * | 2019-05-06 | 2024-02-09 | 广西玉柴机器股份有限公司 | Method for measuring radial runout of valve seat ring and auxiliary tool |
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| CN202630841U (en) * | 2012-04-18 | 2012-12-26 | 平高集团有限公司 | Detection tool for valve port of control valve |
| CN202853559U (en) * | 2012-10-29 | 2013-04-03 | 东风汽车股份有限公司 | Engine cylinder cover valve seat conical surface runout measuring device |
| CN202885710U (en) * | 2012-10-22 | 2013-04-17 | 无锡市迈日机器制造有限公司 | Detection tool for jumpiness of valve seat ring |
| CN203405136U (en) * | 2013-07-02 | 2014-01-22 | 镇江中船设备有限公司 | Special gauge for diesel engine cylinder cover conical surface run-out |
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2013
- 2013-07-02 CN CN201310272896.4A patent/CN103322878B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1888812A (en) * | 2006-07-20 | 2007-01-03 | 陈焕春 | Hole-to-hole circle pulsation measuring tool |
| CN201311256Y (en) * | 2008-10-16 | 2009-09-16 | 北京二七轨道交通装备有限责任公司 | Valve detection tool for diesel engine |
| CN201653341U (en) * | 2010-04-28 | 2010-11-24 | 南车戚墅堰机车有限公司 | Valve seat hole pulsation measuring device |
| CN202420357U (en) * | 2012-02-04 | 2012-09-05 | 潍柴动力股份有限公司 | Run-out inspection tool for valve seats |
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| CN103322878A (en) | 2013-09-25 |
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| CP01 | Change in the name or title of a patent holder |
Address after: Zhenjiang City, Jiangsu Province, 212311 Kwun Tong Bridge Runzhou District Road No. 250 Patentee after: Cssc Marine Power Co., Ltd. Address before: Zhenjiang City, Jiangsu Province, 212311 Kwun Tong Bridge Runzhou District Road No. 250 Patentee before: Zhenjiang Zhongchuan Equipment Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP03 | Change of name, title or address |
Address after: 212211 No. 402, Changjiang Road, Zhenjiang City, Jiangsu Province Patentee after: China Shipbuilding Power Zhenjiang Co.,Ltd. Address before: No. 250, guantangqiao Road, Runzhou District, Zhenjiang City, Jiangsu Province Patentee before: CSSC MARINE POWER Co.,Ltd. |
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| CP03 | Change of name, title or address |