CN206378380U - A kind of valve-valve retainer accelerates durable test device - Google Patents
A kind of valve-valve retainer accelerates durable test device Download PDFInfo
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- CN206378380U CN206378380U CN201720012263.3U CN201720012263U CN206378380U CN 206378380 U CN206378380 U CN 206378380U CN 201720012263 U CN201720012263 U CN 201720012263U CN 206378380 U CN206378380 U CN 206378380U
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- valve
- retainer
- follower lever
- drive shaft
- accelerates
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Abstract
The utility model is related to a kind of valve-valve retainer and accelerates durable test device, belongs to internal combustion engine correlative technology field.Device part mainly includes motor and housing；Drive shaft, follower lever, valve, valve guide bushing and valve retainer are disposed with upper in the housing；Valve rotating mechanism and valve spring are provided with the outside of valve；Valve guide bushing is used to be oriented to valve；Having on the outside of the drive shaft has the roller being adapted with arc boss inside arc boss, follower lever；Motor drives the arc boss in drive shaft turns, drive shaft to be adapted the linear motion that motor convert rotational motion is follower lever with the roller inside follower lever, and valve is moved up and down in the presence of follower lever and valve spring.The present apparatus structure brand-new by designing, allows it to carry out durability test of disembarking, and makes evaluation to engine valve-valve retainer durability by test result, instructs the design of valve-valve retainer, cost-effective, shortens the construction cycle.
Description
Technical field
The utility model is related to internal combustion engine correlative technology field, specifically, is to be related to a kind of valve-valve retainer to add
Fast durable test device.
Background technology
Durability refers to that product keeps the use time of quality and function, and in general, the endurancing time is longer than can
By property test period.As one of important evidence for evaluating product, shown in terms of product development, design, manufacture more next
More important effect.
Internal combustion engine is a kind of power set of height set, by valve actuating mechanism, toggle, transmission mechanism, lubrication
System, cooling system, fuel feed system, activation system and air inlet system and exhaust system composition.The keys such as valve-valve retainer
The service life of part directly affects dynamic property, economy, discharge performance and the reliability of complete machine.
Valve and valve retainer are one of condition of work very severe friction pairs in internal combustion engine, are born at work high
Mechanical load, thermic load, also corroded by corrosive gas, lubricating status is poor.In addition, valve-valve retainer material
Matching also has a major impact to valve-valve retainer failure.In practical work process, valve is with valve retainer often due to gas
Shock of door when taking a seat and fail.
Change after valve-valve retainer, if carrying out complete machine long duration test, substantial amounts of manpower and materials can be expended.Cause
This, if can simulate the actual condition of Valve-valve seat circle to carry out durability test of disembarking to it, can more greatly drop
Low cost, and provide foundation for follow-up study.
Utility model content
The purpose of this utility model is that there is provided a kind of valve-valve retainer acceleration to overcome above-mentioned the deficiencies in the prior art
Durable test device.The present apparatus structure brand-new by designing, allows it to carry out durability test of disembarking, passes through test result
Evaluation is made to engine valve-valve retainer durability, the design of valve-valve retainer is instructed, cost-effective, shortening is opened
The hair cycle.
In order to reach above-mentioned purpose, the utility model is adopted the following technical scheme that：
A kind of valve-valve retainer accelerates durable test device, including：
Motor and housing；
Drive shaft, follower lever, valve, valve guide bushing and valve retainer are disposed with upper in the housing；
Valve rotating mechanism and valve spring are provided with the outside of valve；
Valve guide bushing is used to be oriented to valve；
Have to have in cavity, cavity inside arc boss, follower lever on the outside of the drive shaft and be provided with and arc boss
The roller being adapted；
Arc boss in motor drive drive shaft turns, drive shaft is adapted with the roller inside follower lever revolves motor
The dynamic linear motion for being converted into follower lever of transhipment, valve is moved up and down in the presence of follower lever and valve spring.
It is preferred that, the valve retainer is installed on housing bottom by valve retainer fixing bolt.
It is preferred that, the valve guide bushing is installed on housing bottom by valve guide bushing fixing bolt.
It is preferred that, the lower housing portion is additionally provided with for the heating arrangements to valve and valve retainer heating.
It is preferred that, the heating arrangements are magnet coil.
It is preferred that, the lower housing portion has temperature sensor.
It is preferred that, the follower lever is with housing to be slidably matched, and follower lever has gap with plane on valve.
While said structure scheme is provided, the utility model is additionally provided a kind of to be tested using said apparatus
Method, mainly comprises the following steps：
A, to magnet coil heat, valve retainer and valve bottom is reached design temperature；
B, startup motor, make drive shaft turns, then drive shaft passes through driven shaft drive valve and moved up and down；
Working time and shock number of times when C, record valve and valve retainer failure.
The beneficial effects of the utility model are：
1. the utility model is used for off-line test valve-valve retainer durability, complete machine long duration test is compared, saves big
Measure manpower, material resources and financial resources.
2. the present apparatus is the simplified model of actual valve-valve retainer, each critical component, valve clearance, valve spring are pre-
The structures such as clamp force, parameter are consistent with master mould, and valve crash speed is consistent with actual conditions, therefore obtain result and true knot
Fruit is close, has certain guidance meaning to actual design manufacture.
3. accurate simulation valve retainer temperature, makes simulation air valve drop process closer to the actual process of taking a seat of valve.
4. the present apparatus may be reused, convenient disassembly, simple and practical.
5. it can increase valve crash speed, thus by selecting the valve spring of different shaped wire shaped and different elastic force
The durability of valve-valve retainer can be tested more quickly.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of drive shaft in the utility model；
Fig. 3 is the structural representation of follower lever in the utility model；
Fig. 4 is the cooperation figure of drive shaft and follower lever in the utility model；
In figure：
Motor 1, drive shaft 2, arc boss 2-1, housing 3, follower lever 4, roller 4-1, valve 5, valve rotating mechanism 6,
Valve spring 7, valve guide bushing 8, valve guide bushing fixing bolt 9, valve retainer 10, valve retainer fixing bolt 11, TEMP
Device 12, magnet coil 13.
Embodiment
The utility model is described in detail below in conjunction with accompanying drawing.
Embodiment：A kind of valve-valve retainer accelerates durable test device, and its structure as Figure 1-4, mainly includes
Motor 1, drive shaft 2, housing 3, follower lever 4, valve 5, valve rotating mechanism 6, valve spring 7, valve guide bushing 8, valve guide bushing
Fixing bolt 9, valve retainer 10, valve retainer fixing bolt 11, temperature sensor 12 and magnet coil 13.
Motor 1 is placed in the top of housing 3, and temperature sensor 12 is placed in the bottom of housing 3, drive shaft 2, follower lever 4, valve 5, gas
Door rotating mechanism 6, valve spring 7, valve guide bushing 8 and valve retainer 10 are placed in inside housing 3, wherein, the top of drive shaft 2 is convex
For housing 3.
The rotating shaft of motor 1 is connected with drive shaft 2 with pin key, and drive shaft 2 and follower lever 4 pass through on follower lever 4
Arc boss 2-1 consistent with cam profile with drive shaft 2 roller 4-1 coordinates, and passes through pin key and housing guide grooves by electricity
The rotary motion of machine 1 is changed into the linear motion up and down of follower lever 4.
There is certain gap between plane on follower lever 4 and valve 5, for simulating true valve clearance.
Housing 3, valve collet (not shown), valve stem groove (not shown), valve rotating mechanism 6 and valve
Spring 7 coordinates, and simulates true valve pretightning force.
Valve guide bushing 8 is fixed on housing 3 by valve guide bushing fixing bolt 9 and valve guide bushing pad, for ensureing gas
The linear motion of door.
Valve retainer 10 is fixed on housing 3 by valve retainer fixing bolt, valve retainer cushion block, valve retainer pad
On.Contact condition under the cooperation simulation truth of valve 5 and valve retainer 10 during valve-closing.
The main process tested using said apparatus is included：
A, magnet coil 13 is powered, heating valve retainer 10 and valve 5, the TEMP on valve retainer 10
When the monitoring of device 12 temperature of valve retainer 10 reaches fire power face temperature, it is incubated；
B, housing 3 and motor 1 be fixed on fixed rack, restart motor 1；
C, valve 5 the constant impingement valve retainer 10 in the presence of follower lever 4 and valve spring 7, record valve retainer 10
Time and shock when being failed with valve 5 take a seat number of times, thus investigate the durability of valve and valve retainer.
In the utility model, valve guide bushing 8 and valve retainer 10 are fixed by fixing bolt, convenient dismounting, and can be to not
Same valve-valve retainer is investigated, reusable.
Operation principle of the present utility model is：
Valve 5, valve retainer 10, the reservation of valve spring 7 make experimental result and actual valve process of taking a seat close
Premise；
Follower lever 4 and valve stem upper gap simulate valve clearance；
Valve 5, valve collet, valve rotating mechanism 6, valve spring 7 and housing 3 coordinate, and simulate initial tension of spring.
Calculated by simulating, obtain actual valve seating velocity, and drive shaft 2 can be made by the change to cam profile
The valve crash speed that convex platform molded line is determined is identical with actual valve seating velocity；By magnet coil 13 to valve retainer 10
Heated with valve 5, and by detection of the temperature sensor 12 to the temperature of valve retainer 10, when making experiment valve retainer 10 with
Temperature of the temperature of valve 5 close to valve and valve retainer 10 in actual internal combustion engine working process.
The guarantee of some more than, it is determined that the correctness of model.Drive shaft 2, follower lever 4 and the guide groove of housing 3 are matched somebody with somebody
Close, the rotation of motor 1 is changed into the linear motion of follower lever 4, and pass through the linear motion of the guarantee valve 5 of valve guide bushing 8.It is actual
In the course of work, every two turns of internal combustion engine, valve 5 is realized and once taken a seat.In the present apparatus, the every revolution of motor 1 realizes 5 liang of valve
Secondary to take a seat, identical shock number of times can save the time.In addition, the valve of different type of machines-valve retainer endurance quality can be used
Same device is changed associated components and obtained, convenient disassembly.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or new using this practicality
Type.A variety of modifications to embodiment will be apparent for those skilled in the art, as defined herein
General Principle can in other embodiments be realized, do not give in the case where not departing from spirit or scope of the present utility model
Describe the part presented with partial enlargement in detail, be prior art, herein without repeating.Therefore, the utility model will not
It is intended to be limited to the embodiments shown herein, and is to fit to consistent with feature with principles disclosed herein most wide
Scope.
Claims (7)
1. a kind of valve-valve retainer accelerates durable test device, it is characterised in that including：
Motor and housing；
Drive shaft, follower lever, valve, valve guide bushing and valve retainer are disposed with upper in the housing；
Valve rotating mechanism and valve spring are provided with the outside of valve；
Valve guide bushing is used to be oriented to valve；
Having on the outside of the drive shaft has the roller being adapted with arc boss inside arc boss, follower lever；
Motor drives the arc boss in drive shaft turns, drive shaft to be adapted with the roller inside follower lever and transports motor rotation
The dynamic linear motion for being converted into follower lever, valve is moved up and down in the presence of follower lever and valve spring.
2. valve according to claim 1-valve retainer accelerates durable test device, it is characterised in that the valve seating
Circle is installed on housing bottom by valve retainer fixing bolt.
3. valve according to claim 1-valve retainer accelerates durable test device, it is characterised in that the valve is led
Pipe is installed on housing bottom by valve guide bushing fixing bolt.
4. valve according to claim 1-valve retainer accelerates durable test device, it is characterised in that under the housing
Portion is additionally provided with for the heating arrangements to valve and valve retainer heating.
5. valve according to claim 4-valve retainer accelerates durable test device, it is characterised in that the heater
Structure is magnet coil.
6. valve according to claim 4-valve retainer accelerates durable test device, it is characterised in that under the housing
Portion has temperature sensor.
7. valve according to claim 1-valve retainer accelerates durable test device, it is characterised in that the follower lever
With housing to be slidably matched, follower lever has gap with plane on valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720012263.3U CN206378380U (en) | 2017-01-05 | 2017-01-05 | A kind of valve-valve retainer accelerates durable test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720012263.3U CN206378380U (en) | 2017-01-05 | 2017-01-05 | A kind of valve-valve retainer accelerates durable test device |
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| Publication Number | Publication Date |
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| CN206378380U true CN206378380U (en) | 2017-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720012263.3U Active CN206378380U (en) | 2017-01-05 | 2017-01-05 | A kind of valve-valve retainer accelerates durable test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525615A (en) * | 2017-01-05 | 2017-03-22 | 山东大学 | Air valve-air valve retainer acceleration durability testing device and method |
-
2017
- 2017-01-05 CN CN201720012263.3U patent/CN206378380U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525615A (en) * | 2017-01-05 | 2017-03-22 | 山东大学 | Air valve-air valve retainer acceleration durability testing device and method |
| CN106525615B (en) * | 2017-01-05 | 2023-08-29 | 山东大学 | Valve-valve seat ring acceleration durability test device and method |
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