CN103322878A - 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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- CN103322878A CN103322878A CN2013102728964A CN201310272896A CN103322878A CN 103322878 A CN103322878 A CN 103322878A CN 2013102728964 A CN2013102728964 A CN 2013102728964A CN 201310272896 A CN201310272896 A CN 201310272896A CN 103322878 A CN103322878 A CN 103322878A
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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 belongs to machined part detection technique field.
Background technology
Cylinder head is the main vital 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, directly affect the performance of diesel engine, must be in the scope of 0.02mm to the run-out tolerance in valve guide hole with the valve seat conical surface of cylinder cover for diesel engine such as certain type ship, position of related features requires very high.Therefore, must be strict the process of the control cylinder lid valve seat conical surface, must strictly detect one by one the positional precision of the cylinder cover valve seat conical surface of batch machining.Detection method commonly used is to utilize 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 detection time, and cost is higher, is not suitable in the production scene bulk article being detected.
Summary of the invention
The purpose of this invention is to provide a kind of structure diesel engine cylinder cover valve seat conical surface small and exquisite, easy to use appliance special for detecting of beating, improve detection efficiency.
The present invention is achieved by the following technical programs:
A kind of diesel engine cylinder cover valve seat conical surface appliance special for detecting of beating comprises dial test indicator, pulling sleeve, threaded, plug, steel ball, plug and locking pin, and the plug lower vertical is fixed in the valve guide; Plug is fixed on pulling sleeve endoporus middle part, and threaded passes across the pulling sleeve upper end, and cooperates with the pulling sleeve upper gap, and threaded one end termination is fixedly connected with dial test indicator; Locking pin is threaded with the pulling sleeve upper end, locking pin axis and threaded intersect vertical axis, and locking pin one end termination is resisted against on the threaded periphery; Steel ball is arranged on plug upper end termination central authorities, and the pulling sleeve lower end is enclosed within the plug upper end, and cooperates with the plug upper gap; The plug downside is resisted against on the steel ball, and pulling sleeve is supported on the 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.
Purpose of the present invention can also further realize by following technical measures.
The aforesaid diesel engine cylinder cover valve seat conical surface appliance special for detecting of beating, wherein the plug middle part is provided with relief groove, plug lower end diameter D is greater than the plug middle part diameter d of relief groove downside, the plug upper diameter d1 of relief groove upside is less than plug middle part diameter d, and the plug bottom is vertically fixed in the valve guide by the interference fit with the valve guide endoporus.
The aforesaid diesel engine cylinder cover valve seat conical surface appliance special for detecting of beating, wherein the difference of plug lower end diameter D and plug middle part diameter diameter d is 0.04～0.07mm.
The aforesaid diesel engine cylinder cover valve seat conical surface appliance special for detecting of beating, wherein plug upper end termination central authorities are provided with the taper counterbore, and steel ball is arranged in the taper counterbore.
The aforesaid diesel engine cylinder cover valve seat conical surface appliance special for detecting of beating, the heat treatment hardness of wherein said plug and pulling sleeve is HRc55～60.
The aforesaid diesel engine cylinder cover valve seat conical surface appliance special for detecting of beating, the tolerance clearance of wherein said pulling sleeve lower end and plug upper end is 0.004～0.006mm.
Light and handy compact, easy to use, the low cost of manufacture of structure of the present invention, improved measurement efficient, the present invention replaces the detection of using three-coordinates measuring machine that the diesel engine cylinder cover valve seat conical surface is beated, has satisfied the testing requirement of production scene to bulk article, has reduced testing cost.
Advantage and disadvantage of the present invention will carry out the figure explanation by the non-limitative illustration of following preferred embodiment, and these embodiment only provide as an example with reference to accompanying drawing.
Description of drawings
Fig. 1 is cut-open view of the present invention;
Fig. 2 is the amplification plan view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing and the diesel engine cylinder head for ship valve seat conical surface beat embodiment that deviation detects to the present invention with being described further.
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, plug 6 middle parts have been provided with relief groove 61, plug 6 lower end diameter D are greater than the plug 6 middle part diameter d of relief groove 61 downsides, the plug 6 upper diameter d1 of relief groove 61 upsides are less than plug 6 middle part diameter d, the difference of plug lower end diameter D and plug middle part diameter d is 0.04～0.07mm, like this, plug lower end and plug middle part form lower large little taper shape, and plug 6 bottoms are vertically fixed in the valve guide 8 by the interference fit with valve guide endoporus 81.Plug 4 is fixed on the pulling sleeve 2 endoporus middle part 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 is connected with plug needs repeatedly plug connection, both all have higher hardness, can reduce wear extent, prolong the serviceable life of pulling sleeve 2 and plug 6, reduce and detect error.Pulling sleeve 2 lower ends of the present embodiment and the tolerance clearance of plug 6 upper ends are 0.005mm, have improved accuracy of detection.
Threaded 3 passes across pulling sleeve 2 upper ends, and cooperates with pulling sleeve 2 upper gap, and threaded 3 one end terminations are fixedly connected with dial test indicator 1, and dial test indicator 1 can be along threaded 3 up-down adjustment.Locking pin 7 is threaded with pulling sleeve 2 upper ends, its axis and threaded 3 intersect vertical axis, and locking pin 7 one end terminations are resisted against on threaded 3 peripheries.The steel ball 5 of diameter 5mm is arranged on the taper counterbore 62 of plug 6 upper end termination central authorities, and threaded 3 other end terminations are provided with threaded handwheel 31, locking pin 7 other end terminations are provided with locking pin handwheel 71.Promote moving threaded handwheel 31, transverse shifting threaded 3 can make dial test indicator contact pilotage 11 terminations fit and be detected on the marine diesel valve seat conical surface 100, is convenient to accurately measure the deviation of beating in 100 pairs of valve guide holes 81 of the marine diesel valve seat conical surface.
Turn locking pin handwheel 71, so that locking pin 7 one end terminations tightly are resisted against on threaded 3 peripheries, locking screw thread pin 3, thus fixed dial test indicator 1, avoid producing and detect error.Pulling sleeve 2 lower ends are enclosed within plug 6 upper ends, and cooperate with plug 6 upper gap, and tolerance clearance is 0.005mm, guarantee that dial test indicator 1 has higher accuracy of detection.Plug 4 downsides are resisted against on the steel ball 5, and steel ball 5 diameters of the present embodiment are 5mm, and steel ball 5 pulling sleeves 2 are supported on plug 6 upper ends 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, because steel ball 5 is that point contacts with plug 4 downsides, has improved pulling sleeve 2 together with the rotation precision of dial test indicator 1 around plug 6 axis.
Use the present invention to detect the process that the diesel engine cylinder cover valve seat conical surface beats as follows:
First plug 6 is put in the valve guide hole 81 vertically upward from cylinder cover for diesel engine 80 downsides, owing to plug 6 upper diameter d1 less than the about 0.20mm of plug 6 middle part diameter d, plug 6 tops unhinderedly pass valve guide hole 81 smoothly; Again because plug 6 lower end diameter D greater than the plug 6 middle part diameter d of relief groove 61 downsides, cause plug 6 lower ends to be fixedly connected with because of interference fit with valve guide endoporus 81.Then pulling sleeve 2 lower ends are enclosed within plug 6 upper ends, threaded 3 are passed across pulling sleeve 2 upper ends again, the high and low position of up-down adjustment dial test indicator 1 after transfer is complete, is threaded connection dial test indicator 1 and is fixed on threaded 3 one ends; Promote threaded handwheel 31, about adjust the position of threaded 3 so that dial test indicator contact pilotage 11 terminations are fitted on the detected marine diesel valve seat conical surface 100; Then turn locking pin handwheel 71 locks threaded 3 so that locking pin 7 one end terminations tightly are resisted against on threaded 3 peripheries, thus truck dead lever clock gauge 1.
During detection, rotate pulling sleeve 2, so that a week around valve guide hole 81 axis, is rotated at the diesel engine valve seat conical surface 100 in dial test indicator contact pilotage 11 terminations, can read the deviate of beating shown in the dial test indicator 1.
Take off process of the present invention opposite with installation process of the present invention, unload first dial test indicator 1, then unclamp locking pin 7, take off threaded 3, take off again pulling sleeve 2, knock gently termination, plug 6 upper end with wooden mallet, just can make plug 6 vertical drops break away from valve guide hole, bottom 81, again the present invention is installed on other diesel engine cylinder cover valve seat conical surfaces that need to detect.Repeat aforementioned process, can detect the deviation of beating of other valve seat conical surfaces of diesel engine cylinder head for ship, convenient and swift, improved 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 requirement of the present invention.
Claims (6)
1. diesel engine cylinder cover valve seat conical surface appliance special for detecting of beating, it is characterized in that: comprise dial test indicator, pulling sleeve, threaded, plug, steel ball, plug and locking pin, the plug lower vertical is fixed in the valve guide; Plug is fixed on pulling sleeve endoporus middle part, and threaded passes across the pulling sleeve upper end, and cooperates with the pulling sleeve upper gap, and threaded one end termination is fixedly connected with dial test indicator; Locking pin is threaded with the pulling sleeve upper end, locking pin axis and threaded intersect vertical axis, and locking pin one end termination is resisted against on the threaded periphery; Steel ball is arranged on plug upper end termination central authorities, and the pulling sleeve lower end is enclosed within the plug upper end, and cooperates with the plug upper gap; The plug downside is resisted against on the steel ball, and pulling sleeve is supported on the 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.
2. the diesel engine cylinder cover valve seat conical surface as claimed in claim 1 appliance special for detecting of beating, it is characterized in that: the plug middle part is provided with relief groove, plug lower end diameter D is greater than the plug middle part diameter d of relief groove downside, the plug upper diameter d1 of relief groove upside is less than plug middle part diameter d, and the plug bottom is vertically fixed in the valve guide by the interference fit with the valve guide endoporus.
3. the diesel engine cylinder cover valve seat conical surface as claimed in claim 1 appliance special for detecting of beating, it is characterized in that: the difference of plug lower end diameter D and plug middle part diameter diameter d is 0.04～0.07mm.
4. the diesel engine cylinder cover valve seat conical surface as claimed in claim 1 appliance special for detecting of beating, it is characterized in that: plug upper end termination central authorities are provided with the taper counterbore, and steel ball is arranged in the taper counterbore.
5. the diesel engine cylinder cover valve seat conical surface as claimed in claim 1 appliance special for detecting of beating, it is characterized in that: the heat treatment hardness of described plug and pulling sleeve is HRc55～60.
6. the diesel engine cylinder cover valve seat conical surface as claimed in claim 1 appliance special for detecting of beating, it is characterized in that: the tolerance clearance of described pulling sleeve lower end and plug upper end is 0.004～0.006mm.
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 |
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| Publication Number | Publication Date |
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| CN103322878A true CN103322878A (en) | 2013-09-25 |
| CN103322878B CN103322878B (en) | 2016-04-13 |
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| 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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Cited By (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 |
| CN105526841A (en) * | 2016-01-22 | 2016-04-27 | 中船动力有限公司 | Bouncing detection tool and detection method for conical surface of diesel engine cylinder cap valve seat |
| 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 |
| CN109238193A (en) * | 2018-08-10 | 2019-01-18 | 玉柴联合动力股份有限公司 | A kind of valve retainer wear measuring method |
| CN109839048A (en) * | 2019-03-26 | 2019-06-04 | 青岛华瑞汽车零部件股份有限公司 | A kind of cubing of detection brake fuel feed hole gas vent conical surface bounce |
| CN109990682A (en) * | 2019-05-06 | 2019-07-09 | 广西玉柴机器股份有限公司 | A kind of method and auxiliary mould measuring valve retainer circular runout |
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| 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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| 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 |
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Cited By (11)
| 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 |
| CN105526841A (en) * | 2016-01-22 | 2016-04-27 | 中船动力有限公司 | Bouncing detection tool and detection method for conical surface of diesel engine cylinder cap valve seat |
| 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 |
| CN109238193A (en) * | 2018-08-10 | 2019-01-18 | 玉柴联合动力股份有限公司 | A kind of valve retainer wear measuring method |
| CN109839048A (en) * | 2019-03-26 | 2019-06-04 | 青岛华瑞汽车零部件股份有限公司 | A kind of cubing of detection brake fuel feed hole gas vent conical surface bounce |
| 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 |
| CN109990682A (en) * | 2019-05-06 | 2019-07-09 | 广西玉柴机器股份有限公司 | A kind of method and auxiliary mould measuring valve retainer circular runout |
| 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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|---|---|
| CN103322878B (en) | 2016-04-13 |
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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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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. |