CN203216714U - Engine valve contact stiffness measuring device - Google Patents
Engine valve contact stiffness measuring device Download PDFInfo
- Publication number
- CN203216714U CN203216714U CN 201320251393 CN201320251393U CN203216714U CN 203216714 U CN203216714 U CN 203216714U CN 201320251393 CN201320251393 CN 201320251393 CN 201320251393 U CN201320251393 U CN 201320251393U CN 203216714 U CN203216714 U CN 203216714U
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- China
- Prior art keywords
- valve
- engine
- lever
- contact stiffness
- measuring device
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- 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.)
- Expired - Fee Related
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model discloses an engine valve contact stiffness measuring device. The engine valve contact stiffness measuring device of the utility model comprises a lever, a weight, a dial indicator, a measured air distribution mechanism and a fixing rack, wherein the measured gas distribution mechanism is mounted on the fixing rack and comprises a valve and a cylinder cover; one end of the lever right abuts against the lower end of the valve, and the other end of the lever is loaded with the weight; and the upper end of the valve abuts against the dial indicator. With the engine valve contact stiffness measuring device adopted, only a simple test device is required; and through applying stress states of the valve of an engine, the calculation of the stiffness of the valve can be accomplished, and measurement requirements can be satisfied.
Description
Technical field
The utility model belongs to engine detection technique field, relates to a kind of engine valve contact stiffness measurement mechanism.
Background technology
Engine valve is the vitals of engine valve actuating mechanism, its opening and closing regularly, guarantee engine at work regularly for cylinder sucks fresh combustion mixture, and in time waste gas after burning is discharged vapour, whether it reliably directly influences the performance of engine.Especially along with the development of engine technology, the pressure and temperature in the cylinder uprises, valve is required harsh day by day, valve stressed, that Research on motion becomes is more and more important.Therefore, need carry out analysis of experiments to the engine valve contact stiffness.
At present, the engine valve contact stiffness also there is not unified test standard.The stress that can record valve acceleration by the overall test platform, is subjected to etc.But, configuration engine test complicated condition, the expensive engine component producer that is unfavorable for realizes.
Summary of the invention
The utility model purpose is to overcome the deficiency of above-mentioned technology, provides that a kind of cost is low, efficient is high, engine valve contact stiffness measurement mechanism intuitively comprehensively.The utility model is measured is contact stiffness between engine valve and the valve retainer.
The utility model is by the following technical solutions:
The utility model comprises lever, counterweight, clock gauge, tested valve actuating mechanism and fixed rack.
Tested valve actuating mechanism is erected on the fixed rack, and described tested valve actuating mechanism comprises valve and cylinder head; Lever one end withstands on the positive lower end of valve, and the lever other end loads counterweight, heads on clock gauge in the upper end of valve.
Compared with prior art, the beneficial effects of the utility model are:
1, the utility model, is finished and is measured static valve contact stiffness valve retainer load by the simulation valve.Can accurately record valve and valve retainer and make its deflection of time spent being subjected to load impacting, reach testing requirements with this, the confidence level of warranty test.
2, it is simple in structure that the utility model adopts clock gauge, the precision of energy warranty test.
3, the utility model does not need complicated block testing stand, and is simple in structure, and experimentation cost is low, and applicability is wide, and convenient use for a long time is widely used in each auto parts and components manufacturing plant, is conducive to industry development.
Description of drawings
Fig. 1 is the structural representation of engine valve contact stiffness;
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 1, engine valve contact stiffness test unit comprises: clock gauge 1, valve 2, cylinder head 3(contain seat ring), fixed rack 4, lever 5 and counterweight 6.
Engine cylinder cap 3 and valve 2 are fixed on the test-bed 4, and lever 5 one ends vertically head on valve 2 lower ends, and the other end can load counterweight 6, by the weight of control counterweight 6, control the size of the power that valve 2 is applied.Valve 2 tops head on clock gauge 1, can show the contacting strain amount between valve 2 and the cylinder head 3, calculate contact stiffness between valve 2 and the cylinder head 3 by formula at last.
What the utility model was surveyed is the Static Contact rigidity of engine valve.This measurement test is that engine valve to be measured and cylinder head are fixed on the test-bed, heads on clock gauge at the valve stem top, and lever one end withstands on the positive lower end of valve, and the other end of lever loads counterweight; Read data on the clock gauge by every loading counterweight, calculate the contact stiffness of valve.The utility model only needs the simple experiment device, by simulated engine valve and cylinder head state of contact, finishes the measurement of valve contact stiffness is calculated, and reaches testing requirements.
Its measuring process is:
Step 1, elder generation are fixed on valve and valve actuating mechanism cylinder cap on the test-bed, and lever one end vertically heads on center, the positive lower end of valve end face, and the other end can load counterweight, and the top of valve stem heads on clock gauge.
Step 2, accurate in order to measure, when measuring, remove valve spring, valve-spring washer and valve collet, fixedly clock gauge makes it have certain initial value, begin to load counterweight then, read the registration of clock gauge, by the lever moment formula, thereby obtain being loaded into the size of valve contact force.
Step 3, keeping records data by load mass and valve and valve retainer juxtaposition metamorphose amount, thereby calculate contact stiffness K,
Wherein
Represent the lever equivalence in the stressed size of valve,
Juxtaposition metamorphose amount between expression valve and the cylinder cap.
Claims (1)
1. engine valve contact stiffness measurement mechanism comprises lever, counterweight, clock gauge, tested valve actuating mechanism and fixed rack, and it is characterized in that: tested valve actuating mechanism is erected on the fixed rack, and described tested valve actuating mechanism comprises valve and cylinder head; Lever one end withstands on the positive lower end of valve, and the lever other end loads counterweight, heads on clock gauge in the upper end of valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320251393 CN203216714U (en) | 2013-05-10 | 2013-05-10 | Engine valve contact stiffness measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320251393 CN203216714U (en) | 2013-05-10 | 2013-05-10 | Engine valve contact stiffness measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203216714U true CN203216714U (en) | 2013-09-25 |
Family
ID=49206241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320251393 Expired - Fee Related CN203216714U (en) | 2013-05-10 | 2013-05-10 | Engine valve contact stiffness measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203216714U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278315A (en) * | 2013-05-10 | 2013-09-04 | 杭州电子科技大学 | Device and method for measuring contact rigidity of engine valve |
-
2013
- 2013-05-10 CN CN 201320251393 patent/CN203216714U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278315A (en) * | 2013-05-10 | 2013-09-04 | 杭州电子科技大学 | Device and method for measuring contact rigidity of engine valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20160510 |