CN104634230A - Aided detection device and detection method for valve timing of diesel engine - Google Patents
Aided detection device and detection method for valve timing of diesel engine Download PDFInfo
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- CN104634230A CN104634230A CN201510074162.4A CN201510074162A CN104634230A CN 104634230 A CN104634230 A CN 104634230A CN 201510074162 A CN201510074162 A CN 201510074162A CN 104634230 A CN104634230 A CN 104634230A
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Abstract
The invention discloses an aided detection device and a detection method for valve timing of a diesel engine. The aided detection device comprises a substrate, a positioning cylinder and a pointer, wherein the side face of the substrate is abutted against the side face of a mounting hole of a phase sensor of a crankshaft; the positioning cylinder is concentrically and fixedly arranged on one side face of the substrate, and the diameter of the positioning cylinder is less than that of the substrate; the positioning cylinder is arranged in the mounting hole of the phase sensor; the pointer is concentrically and fixedly arranged on the positioning cylinder. According to the aided detection device, a valve opening angle of the valve timing of the diesel engine can be rapidly and accurately detected, and therefore the detection accuracy of the valve timing of the diesel engine is ensured, and the phenomenon that the valve timing of the diesel engine is misjudged to be unqualified due to the fact that a measurement result error is bigger is effectively prevented.
Description
Technical field
The present invention relates to engine art, particularly a kind of auxiliary detection device of Valve Timing of Diesel Engine and detection method thereof.
Background technology
The detection of the Valve Timing of Diesel Engine of prior art be the mounting hole of phase detector by observing bent axle the angle dial corresponding to center line on angle come, angle dial is arranged on vibroshock, this angle is as the valve opening angle for port timing, but because crank phase sensor mounting hole is larger, naked eyes accurately cannot read the scale mark on the angle dial of mounting hole center line indication, error is larger, and do not revise the technical standard of this valve opening angle, therefore testing result differs larger with actual port timing angle, whether qualified the judgement causing gas distribution phase of engine be inaccurate.
The information being disclosed in this background technology part is only intended to increase the understanding to general background of the present invention, and should not be regarded as admitting or imply in any form that this information structure has been prior art that persons skilled in the art are known.
Summary of the invention
The object of the present invention is to provide a kind of auxiliary detection device and detection method thereof of Valve Timing of Diesel Engine, thus the detection method error overcoming prior art is large, accurately cannot judge the defect whether gas distribution phase of engine is qualified.
For achieving the above object, the invention provides a kind of auxiliary detection device of Valve Timing of Diesel Engine, auxiliary detection device comprises: pedestal, and the side of pedestal is connected on the side of the mounting hole of the phase detector of bent axle; Positioning cylinder, positioning cylinder is fixed on a side of pedestal with one heart, and the diameter of positioning cylinder is less than the diameter of pedestal; Positioning cylinder is arranged in the mounting hole of phase detector; Pointer, pointer is fixed on positioning cylinder with one heart.
Preferably, in technique scheme, another side of pedestal is fixed with handle.
Present invention also offers a kind of detection method of Valve Timing of Diesel Engine, detection method comprises: adhered to by angle dial on vibration damper, the center of circle of angle dial is aimed at the center of circle of vibration damper, and the zero graduation line on angle dial is alignd with the zero graduation line of vibration damper; 1mm is adjusted in valve clearance engine being detected cylinder, and is fixed on cylinder cap by dial indicator holder, and the pointer of dial gauge is vertically pressed onto on cotter seat, then the scale of dial gauge is adjusted to zero-bit; There is provided auxiliary detection device, auxiliary detection device comprises pedestal, positioning cylinder and pointer; Auxiliary detection device is installed on the mounting hole of the phase detector of bent axle, positioning cylinder is installed in mounting hole, and the side of pedestal abuts on the side of mounting hole, pointed angle dial; Rotate clockwise bent axle, rotational angle is less than the unlatching angle on target of valve 10 °; Slow turning crankshaft also observes the pointer of dial gauge, stops operating in the moment that the pointer of dial gauge is beated; With the angle corresponding to pointer on viewing angle index dial, as the initial valve opening angle A0 of port timing; Formula A=A0 ± 3.5 ° are utilized to calculate the valve opening angle A of port timing; If valve opening angle A is in the critical field of port timing angle, then this port timing is qualified; Otherwise, defective.
Compared with prior art, the present invention has following beneficial effect:
This auxiliary detection device can detect the valve opening angle of the port timing of diesel engine rapidly and accurately, guarantees the accuracy that Valve Timing of Diesel Engine detects, and effectively prevent because measuring result error is comparatively large and causes the underproof phenomenon of erroneous judgement Valve Timing of Diesel Engine.
Accompanying drawing explanation
Fig. 1 is the structural drawing of the auxiliary detection device according to Valve Timing of Diesel Engine of the present invention.
Fig. 2 is the wiring layout according to the auxiliary detection device of Valve Timing of Diesel Engine of the present invention and the mounting hole of phase detector.
Main Reference Numerals illustrates:
1-base assembly, 11-handle, 12-pedestal, 2-positioning cylinder, 3-pointer, 4-mounting hole.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention not by the restriction of embodiment.
Clearly represent unless otherwise other, otherwise in whole instructions and claims, term " comprise " or its conversion as " comprising " or " including " etc. by be understood to include the element of stating or ingredient, and do not get rid of other element or other ingredient.
As shown in Figure 2, be arranged on according to the auxiliary detection device of the Valve Timing of Diesel Engine of the specific embodiment of the invention in the mounting hole of phase detector of bent axle.
As shown in Figure 1, auxiliary detection device comprises base assembly 1, positioning cylinder 2 and pointer 3.
Base assembly 1 comprises handle 11 and pedestal 12, and handle 11 is fixed on a side of pedestal 12.Positioning cylinder 2 is fixed on another side of pedestal 12 with one heart, and pointer 3 is fixed on positioning cylinder 2 with one heart.
As shown in Figure 2, pedestal 12 is connected on the side of mounting hole 4 of phase detector, and positioning cylinder 2 is arranged in mounting hole 4 simultaneously, and pointer is through mounting hole 4.
Preferably, positioning cylinder 2 and mounting hole 4 clearance fit.
When utilizing the port timing of above-mentioned auxiliary detection device to diesel engine to detect, comprise the steps:
Angle dial is adhered on vibration damper, the center of circle of angle dial is aimed at the center of circle of vibration damper, and the zero graduation line on angle dial is alignd with the zero graduation line of vibration damper.
1mm is adjusted in valve clearance engine being detected cylinder, and is fixed on cylinder cap by dial indicator holder, and the pointer of dial gauge is vertically pressed onto on cotter seat, then the scale of dial gauge is adjusted to zero-bit; Wherein, under the state being 1mm in valve clearance, the metrical error of port timing angle is minimum.
Auxiliary detection device is installed on the mounting hole of the phase detector of bent axle, makes pointer 3 orientation angle index dial;
Rotate clockwise bent axle, rotational angle is less than the unlatching angle on target of valve about 10 °;
Slow turning crankshaft also observes the pointer of dial gauge, stops operating in the moment that the pointer of dial gauge is beated;
With the angle corresponding to pointer 3 on viewing angle index dial, as the initial valve opening angle A of port timing
0;
Utilize formula A=A
0± 3.5 ° of valve opening angle A calculating port timing.
If valve opening angle A is in the critical field of port timing angle, then this port timing is qualified; Otherwise, defective.
This auxiliary detection device can detect the valve opening angle of the port timing of diesel engine rapidly and accurately, guarantees the accuracy that Valve Timing of Diesel Engine detects, and effectively prevent because measuring result error is comparatively large and causes the underproof phenomenon of erroneous judgement Valve Timing of Diesel Engine.
The aforementioned description to concrete exemplary of the present invention is to illustrate and the object of illustration.These descriptions not want the present invention to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.The object selected exemplary embodiment and describe is to explain certain principles of the present invention and practical application thereof, thus those skilled in the art can be realized and utilize various different exemplary of the present invention and various different selection and change.Scope of the present invention is intended to limited by claims and equivalents thereof.
Claims (3)
1. an auxiliary detection device for Valve Timing of Diesel Engine, is characterized in that, described auxiliary detection device comprises:
Pedestal, the side of described pedestal is connected on the side of the mounting hole of the phase detector of bent axle;
Positioning cylinder, described positioning cylinder is fixed on a side of described pedestal with one heart, and the diameter of described positioning cylinder is less than the diameter of described pedestal; Described positioning cylinder is arranged in the mounting hole of described phase detector;
Pointer, described pointer is fixed on described positioning cylinder with one heart.
2. the auxiliary detection device of Valve Timing of Diesel Engine according to claim 1, is characterized in that, another side of described pedestal is fixed with handle.
3. a detection method for Valve Timing of Diesel Engine, is characterized in that, described detection method comprises:
Angle dial is adhered on vibration damper, the center of circle of described angle dial is aimed at the center of circle of described vibration damper, and on described angle dial 0 ° of scale mark is alignd with the zero graduation line of described vibration damper;
1mm is adjusted in valve clearance engine being detected cylinder, and is fixed on cylinder cap by dial indicator holder, and the pointer of described dial gauge is vertically pressed onto on cotter seat, then the scale of described dial gauge is adjusted to zero-bit;
There is provided auxiliary detection device, described auxiliary detection device comprises pedestal, positioning cylinder and pointer;
Described auxiliary detection device is installed on the mounting hole of the phase detector of bent axle, described positioning cylinder is installed in described mounting hole, and the side of described pedestal abuts on the side of described mounting hole, angle dial described in described pointed;
Rotate clockwise described bent axle, rotational angle is less than the unlatching angle on target of valve 10 °;
Rotate described bent axle and observe the pointer of described dial gauge, stopping operating in the moment that the pointer of described dial gauge is beated;
Observe on described angle dial with the angle corresponding to described pointer, as the initial valve opening angle A of port timing
0;
Utilize formula A=A
0± 3.5 ° of valve opening angle A calculating port timing;
If described valve opening angle A is in the critical field of port timing angle, then this port timing is qualified; Otherwise, defective.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510074162.4A CN104634230A (en) | 2015-02-12 | 2015-02-12 | Aided detection device and detection method for valve timing of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510074162.4A CN104634230A (en) | 2015-02-12 | 2015-02-12 | Aided detection device and detection method for valve timing of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104634230A true CN104634230A (en) | 2015-05-20 |
Family
ID=53213255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510074162.4A Pending CN104634230A (en) | 2015-02-12 | 2015-02-12 | Aided detection device and detection method for valve timing of diesel engine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444654A (en) * | 2015-12-10 | 2016-03-30 | 广西玉柴机器股份有限公司 | Valve-timing phase detection method for engine |
| CN107339927A (en) * | 2016-12-05 | 2017-11-10 | 安徽江淮汽车集团股份有限公司 | Engine cylinder-body cylinder-bore diameter measurement instrument |
| CN111272435A (en) * | 2020-03-04 | 2020-06-12 | 广西玉柴机器股份有限公司 | Detection device for gas distribution phase of diesel engine |
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| CN88204073U (en) * | 1988-04-19 | 1988-10-19 | 魏恩贵 | Tester for checking gas distribution phase of internal combustion engine |
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| US20080017149A1 (en) * | 2006-07-21 | 2008-01-24 | Hitachi, Ltd. | Phase angle detection device and internal combustion engine valve timing control apparatus using the same |
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| US20080017149A1 (en) * | 2006-07-21 | 2008-01-24 | Hitachi, Ltd. | Phase angle detection device and internal combustion engine valve timing control apparatus using the same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444654A (en) * | 2015-12-10 | 2016-03-30 | 广西玉柴机器股份有限公司 | Valve-timing phase detection method for engine |
| CN107339927A (en) * | 2016-12-05 | 2017-11-10 | 安徽江淮汽车集团股份有限公司 | Engine cylinder-body cylinder-bore diameter measurement instrument |
| CN111272435A (en) * | 2020-03-04 | 2020-06-12 | 广西玉柴机器股份有限公司 | Detection device for gas distribution phase of diesel engine |
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Application publication date: 20150520 |
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