CN101963484A - Universal detection device of engine valve lift - Google Patents
Universal detection device of engine valve lift Download PDFInfo
- Publication number
- CN101963484A CN101963484A CN2010102812231A CN201010281223A CN101963484A CN 101963484 A CN101963484 A CN 101963484A CN 2010102812231 A CN2010102812231 A CN 2010102812231A CN 201010281223 A CN201010281223 A CN 201010281223A CN 101963484 A CN101963484 A CN 101963484A
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- reduction gearing
- angle dial
- dial plate
- valve lift
- reducing gear
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Abstract
The invention discloses a universal detection device of an engine valve lift, which comprises a dial indicator, a fixed frame, a connecting plate, a speed reducing mechanism, a first angle dial and a second angle dial, wherein the fixed frame is fixedly connected with the speed reducing mechanism, the speed reducing mechanism is fixedly connected with the connecting plate, the first angle dial is arranged on the output shaft of the speed reducing mechanism, and the dial indicator is fixedly connected with the second angle dial. The universal detection device can be used as fixed equipment for long-term use and can ensure the precision since references are relatively fixed; the references of all the parts of the device are unified, the errors are fixed, the precision is within an acceptable range, and a relative error limit can be computed through absolute errors; the axial line of the dial indicator and the axial line of a valve rod are easily adjusted to be collinear, and the valve stroke can be truly reflected through measured numerical values; through the two-stage speed reducing mechanism, the rotating speed of the output shaft can be decreased, the torque of an input shaft is reduced, the operation is quite easy, and particularly a unidirectional clutch prevents the input shaft from reversely rotating and further ensures the rotating accuracy of the input shaft; and the device has strong adaptability.
Description
Technical field
What the present invention relates to is the device in a kind of engine valve detection technique field, in particular a kind of universal pick-up unit of engine air valve lift.
Background technology
When mapping cam profile or inspection engine inlet and outlet door phase diagram, often need to detect inlet and outlet door lift.Existing pick-up unit location difficulty, data distortion and error are bigger.As shown in Figure 1, pick-up unit for the available engine valve stroke, this pick-up unit comprises worktable 1 ', wooden fixed mount 2 ', spanner 3 ', engine 4 ', magneto rotor 5 ', valve rocker 6 ', clock gauge 7 ' and Magnetic rack 8 ', wherein: engine 4 ' level is located in wooden fixed mount 2 ', wooden fixed mount 2 ' level is located on the worktable 1 ', clock gauge 7 ' is located on the Magnetic rack 8 ', Magnetic rack 8 ' level is located on the worktable 1 ', magneto rotor 5 ' links to each other with engine 4 ', spanner 3 ' links to each other with magneto rotor 5 ', and valve rocker 6 ' links to each other with clock gauge 7 '.During work, adjust the adjutage angle of Magnetic rack 8 ', make the contact of clock gauge 7 ' and valve stem axis in alignment as far as possible.Calculate magneto rotor 5 ' external diameter, cut out a same length paper slip, and be divided into 360 equal portions with dash line, apply glue, be affixed on magneto rotor 5 ' external diameter, on engine 4 ', look for a suitable stationary point to glue a pointer, be used to indicate the magneto rotor 5 ' anglec of rotation.When measuring valve stroke, nut by be rotationally connected with spanner 3 ' magneto rotor 5 ' and bent axle, drive crankshaft rotating, stick on magneto rotor 5 ' paper slip and turn over the pointer angular readings that is fixed on the engine 4 ' by watching, read the reading of clock gauge 7 ' again, be the valve stroke of engine 4 ' under a certain crank angle.If with the point of stepping once, corotation changes 720 valve stroke data that bent axle two circles promptly obtain.
Existing valve stroke proving installation has following shortcoming: existing proving installation has provisional shortcoming; Engine 4 ' is placed on the wooden fixed mount 2 ' and Magnetic rack 8 ' places on the worktable 1 ', and both positioning references are just different, and wooden fixed mount 2 ' is easy to wear, and engine 4 ' position will change when measuring at every turn; The contact of clock gauge 7 ' and the axis of valve stem are difficult to artificial furnishing straight line, and measuring numerical value has the angle systematic error very big; Existing proving installation is measured the numerical value degree of accuracy and is depended on operator's experience; Spanner 3 ' turning crankshaft angle, long-time once another degree stepping is difficult to guarantee the precision of every degree.
Summary of the invention
Goal of the invention: the objective of the invention is to overcome the deficiencies in the prior art, a kind of universal pick-up unit of engine air valve lift is provided, by two reduction gear and angle dial plate realized the proving installation accurate positioning, easy to operate, data are accurate, error is less and the scope of application is comparatively extensive.
Technical scheme: the present invention is achieved by the following technical solutions, the present invention includes clock gauge, fixed mount and web joint, also comprise reducing gear, the first angle dial plate and the second angle dial plate, wherein: fixed mount and reducing gear are fixedly linked, reducing gear and web joint are fixedly linked, the first angle dial plate is located on the output shaft of reducing gear, and the clock gauge and the second angle dial plate are fixedly linked.
The input shaft of described reducing gear is provided with one-way clutch, and output shaft is provided with adapter sleeve.
Described reducing gear comprises handle, first reduction gearing, second reduction gearing, the 3rd reduction gearing and the 4th reduction gearing, wherein: handle links to each other with one-way clutch, first reduction gearing links to each other with one-way clutch, second reduction gearing links to each other with first reduction gearing, the 3rd reduction gearing links to each other with second reduction gearing, the 4th reduction gearing links to each other with the 3rd reduction gearing, and adapter sleeve links to each other with the 4th reduction gearing
The described clock gauge and the second angle dial plate are fixedly linked by connecting link.
Described fixed mount is a steel.
The contact and the valve of described clock gauge contact.
The described first angle dial plate and the second angle dial plate are the angle dial plates that has fixed pointers, and precision is 0.1 degree.
When the present invention works: the cylinder head of engine to be measured is positioned on the steel fixed mount, simultaneously the steel fixed mount is fixed on the worktable, to keep the depth of parallelism of cylinder head faying face and worktable, also just guaranteed and valve rocker, cam, clock gauge and connecting link between relative position, these relative positional accuracies guarantee with the machining precision of worktable.Adapter sleeve is fixed on the web joint correct position to reducing gear in order to connect the output shaft of cam and reducing gear, and web joint is fixed on the worktable.Adjust the angle of connecting link, make it identical with the drawing air valve angle or the mapping air valve angle is identical, relative with the valve spring seating face vertical with assurance clock gauge axis, so that valve real motion stroke can be expressed in the clock gauge contact.Rotate counterclockwise handle, reducing gear drives cam and rotates together, and along with cam rotation, valve is setting in motion also, and clock gauge just can be read the valve motion stroke, reads the first angle dial plate number of degrees simultaneously.If step units had been for once, and write down the valve stroke value of the first angle dial plate revolution once the time, just can be aggregated into the valve stroke chart.Can be relatively and the difference between the advanced type with these charts, with obtain and advanced model-performance between essential difference.If divided by the valve rocker lever ratio, just can obtain cam profile, and can accurately obtain valve switching phase diagram to valve stroke.No matter overhead or side, inclined valve as long as accurately adjust clock gauge connecting link angle, just guarantee that the clock gauge axis is relative with the valve spring seating face vertical.No matter overhead or underlying cam are fixed on the web joint correct position as long as adjust reducing gear simultaneously, " universal " is embodied in this.
Beneficial effect: the universal proving installation of engine air valve lift of the present invention can be used as fixed equipment and uses for a long time, and the benchmark relative fixed can guarantee precision; This installs each parts unifying datum, and error is fixed, and precision and can be calculated relative error limit by absolute error in tolerance interval; Clock gauge axis and valve stem axis are easy to the furnishing conllinear, measure numerical value and can truly reflect valve stroke; By two reduction gear, can reduce the output shaft rotating speed, and reduce input shaft torque, operation is easy to, and especially one-way clutch prevents that the input shaft backward rotation from guaranteeing that more input shaft rotates accuracy; Has very strong adaptability.
Description of drawings
Fig. 1 is the structural representation of existing valve stroke proving installation;
Fig. 2 is a structural representation of the present invention;
Fig. 3 is the structural representation of reducing gear of the present invention.
Embodiment
Below embodiments of the invention are elaborated, present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 2, present embodiment comprises worktable 1, web joint 2, reducing gear 3, the first angle dial plate 4, clock gauge 5, connecting link 6, the second angle dial plate 7, valve rocker 8, cotter seat 9 and steel fixed mount 10, wherein: steel fixed mount 10 is fixed on the worktable 1, steel fixed mount 10 and reducing gear 3 are fixedly linked, reducing gear 3 and web joint 2 are fixedly linked, the first angle dial plate 4 is fixed on the output shaft of reducing gear 3, the clock gauge 5 and the second angle dial plate 7 are fixedly linked by connecting link 6, cotter seat 9 is located on the valve, valve rocker 8 links to each other with cotter seat 9, and the contact and the valve of clock gauge 5 contact.
The input shaft of described reducing gear 3 is provided with one-way clutch 12, output shaft is provided with adapter sleeve 16, reducing gear 3 also comprises: handle 11, first reduction gearing 13, second reduction gearing 14, the 3rd reduction gearing 15 and the 4th reduction gearing 17, wherein: handle 11 links to each other with one-way clutch 12, first reduction gearing 13 links to each other with one-way clutch 12, second reduction gearing 14 links to each other with first reduction gearing 13, the 3rd reduction gearing 15 links to each other with second reduction gearing 14, the 4th reduction gearing 17 links to each other with the 3rd reduction gearing 15, adapter sleeve 16 links to each other with the 4th reduction gearing 17
Power intake at reducing gear 3 increases one-way clutch 12, handle 11 can only be rotated counterclockwise, oppositely by, adapter sleeve 16 is the actuating units between reducing gear 3 and the camshaft, on the output shaft of reducing gear 3, fix the first angle dial plate, 4, the first angle dial plates 4 in addition and rotate, on worktable 1, fix a pointer simultaneously with output shaft, be used to indicate the first angle dial plate 4 to turn over angle, its precision is 0.1 degree.In like manner on connecting link 6, fix the second angle dial plate, 7, the second angle dial plates 7 and rotate, on worktable 1, fix another pointer, be used to indicate the second angle dial plate 7 to turn over angle with connecting link 6.The axis of clock gauge 5 is vertical with connecting link 6, and is fixed on the connecting link 6, and pointer indicates the second angle dial plate 7 to turn over how many angles, promptly represents angle between the axis of clock gauge 5 and the vertical, and its precision is 0.1 degree.
Claims (7)
1. the universal pick-up unit of an engine air valve lift, comprise clock gauge, fixed mount and web joint, it is characterized in that, also comprise reducing gear, the first angle dial plate and the second angle dial plate, wherein: fixed mount and reducing gear are fixedly linked, reducing gear and web joint are fixedly linked, and the first angle dial plate is located on the output shaft of reducing gear, and the clock gauge and the second angle dial plate are fixedly linked.
2. the universal pick-up unit of engine air valve lift according to claim 1, it is characterized in that: the input shaft of described reducing gear is provided with one-way clutch, and output shaft is provided with adapter sleeve.
3. the universal pick-up unit of engine air valve lift according to claim 2, it is characterized in that: described reducing gear comprises handle, first reduction gearing, second reduction gearing, the 3rd reduction gearing and the 4th reduction gearing, wherein: handle links to each other with one-way clutch, first reduction gearing links to each other with one-way clutch, second reduction gearing links to each other with first reduction gearing, the 3rd reduction gearing links to each other with second reduction gearing, the 4th reduction gearing links to each other with the 3rd reduction gearing, and adapter sleeve links to each other with the 4th reduction gearing.
4. the universal pick-up unit of engine air valve lift according to claim 1, it is characterized in that: the described clock gauge and the second angle dial plate are fixedly linked by connecting link.
5. the universal pick-up unit of engine air valve lift according to claim 1, it is characterized in that: described fixed mount is a steel.
6. the universal pick-up unit of engine air valve lift according to claim 1, it is characterized in that: the contact and the valve of described clock gauge contact.
7. the universal pick-up unit of engine air valve lift according to claim 1, it is characterized in that: the described first angle dial plate and the second angle dial plate are the angle dial plates that has fixed pointers, precision is 0.1 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102812231A CN101963484B (en) | 2010-09-14 | 2010-09-14 | Universal detection device of engine valve lift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102812231A CN101963484B (en) | 2010-09-14 | 2010-09-14 | Universal detection device of engine valve lift |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101963484A true CN101963484A (en) | 2011-02-02 |
| CN101963484B CN101963484B (en) | 2012-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102812231A Active CN101963484B (en) | 2010-09-14 | 2010-09-14 | Universal detection device of engine valve lift |
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| CN (1) | CN101963484B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102139463A (en) * | 2011-04-28 | 2011-08-03 | 上海交通大学 | Face milling cutter setting device for numerical control machining center |
| CN102384708A (en) * | 2011-10-19 | 2012-03-21 | 四川宁江山川机械有限责任公司 | Measuring tool for detecting spiral lift of vibration absorber spring seat |
| CN106352767A (en) * | 2016-12-05 | 2017-01-25 | 安徽江淮汽车集团股份有限公司 | Engine cylinder cover multi-air-valve lift range measuring device |
| CN108613614A (en) * | 2018-07-16 | 2018-10-02 | 陕西科技大学 | A kind of straight stroke valve actuator mechanic transmission clearance detection device and method |
| CN108801106A (en) * | 2018-07-28 | 2018-11-13 | 国营芜湖机械厂 | A kind of interlocking mechanism is without stop stroke measuring device and measurement method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201083609Y (en) * | 2007-07-30 | 2008-07-09 | 比亚迪股份有限公司 | Air valve lift measuring and adjusting apparatus |
| CN201302515Y (en) * | 2008-11-26 | 2009-09-02 | 天津大学 | Pressing mechanism of air valve which can control down moving of angle of various air valves accurately |
| CN201476965U (en) * | 2009-06-23 | 2010-05-19 | 奇瑞汽车股份有限公司 | Steady-flow trail air valve lift adjusting mechanism of engine cylinder cover air channel |
| CN201780075U (en) * | 2010-09-14 | 2011-03-30 | 南京金城机械有限公司 | Universal detection device for engine valve lift |
-
2010
- 2010-09-14 CN CN2010102812231A patent/CN101963484B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201083609Y (en) * | 2007-07-30 | 2008-07-09 | 比亚迪股份有限公司 | Air valve lift measuring and adjusting apparatus |
| CN201302515Y (en) * | 2008-11-26 | 2009-09-02 | 天津大学 | Pressing mechanism of air valve which can control down moving of angle of various air valves accurately |
| CN201476965U (en) * | 2009-06-23 | 2010-05-19 | 奇瑞汽车股份有限公司 | Steady-flow trail air valve lift adjusting mechanism of engine cylinder cover air channel |
| CN201780075U (en) * | 2010-09-14 | 2011-03-30 | 南京金城机械有限公司 | Universal detection device for engine valve lift |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102139463A (en) * | 2011-04-28 | 2011-08-03 | 上海交通大学 | Face milling cutter setting device for numerical control machining center |
| CN102384708A (en) * | 2011-10-19 | 2012-03-21 | 四川宁江山川机械有限责任公司 | Measuring tool for detecting spiral lift of vibration absorber spring seat |
| CN102384708B (en) * | 2011-10-19 | 2016-07-20 | 四川宁江山川机械有限责任公司 | Measuring tool for detecting spiral lift of vibration absorber spring seat |
| CN106352767A (en) * | 2016-12-05 | 2017-01-25 | 安徽江淮汽车集团股份有限公司 | Engine cylinder cover multi-air-valve lift range measuring device |
| CN108613614A (en) * | 2018-07-16 | 2018-10-02 | 陕西科技大学 | A kind of straight stroke valve actuator mechanic transmission clearance detection device and method |
| CN108801106A (en) * | 2018-07-28 | 2018-11-13 | 国营芜湖机械厂 | A kind of interlocking mechanism is without stop stroke measuring device and measurement method |
| CN108801106B (en) * | 2018-07-28 | 2020-07-03 | 国营芜湖机械厂 | Device and method for measuring dead-point-free stroke of interlocking mechanism |
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| Publication number | Publication date |
|---|---|
| CN101963484B (en) | 2012-01-18 |
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