CN104775868A - Air door group mechanism for bulldozer engine air distribution - Google Patents
Air door group mechanism for bulldozer engine air distribution Download PDFInfo
- Publication number
- CN104775868A CN104775868A CN201510173380.3A CN201510173380A CN104775868A CN 104775868 A CN104775868 A CN 104775868A CN 201510173380 A CN201510173380 A CN 201510173380A CN 104775868 A CN104775868 A CN 104775868A
- Authority
- CN
- China
- Prior art keywords
- air door
- valve
- seat
- spring
- group mechanism
- Prior art date
- 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.)
- Pending
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
- F01L3/02—Selecting particular materials for valve-members or valve-seats; Valve-members or valve-seats composed of two or more materials
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
- F01L3/08—Valves guides; Sealing of valve stem, e.g. sealing by lubricant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
- F01L3/10—Connecting springs to valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
- F01L3/22—Valve-seats not provided for in preceding subgroups of this group; Fixing of valve-seats
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses an air door group mechanism for bulldozer engine air distribution. The air door group mechanism comprises an installing base, an air door seat, an air door rod, an air door catheter, an air door spring, a clamp spring, a spring seat and a locking sheet, wherein a cavity is arranged in the installing base, the air door seat is positioned at the bottom of the cavity, the air door rod is arranged right above the air door seat, the air door catheter is connected onto the air door rod in a sleeving way, the upper part of the air door seat is in a conical shape, a contact part of the air door catheter and the air door seat is in a reverse horn shape matched with the conical shape, the upper half part of the air door catheter is nested in the air door spring, the air door spring extends out of the installing base, the top of the air door spring is fixedly arranged on the spring seat through the clamp spring, the spring seat is positioned on the top of the air door rod, and the locking sheet is fixedly arranged above the spring seat. The air door group mechanism has the advantages that the upper part of the air door seat is in a conical shape, the sealing performance at the contact part of the air door catheter and the air door seat is high, the air door rod is made of silicon chrome-steel materials, the wear resistance and high-temperature resistance are realized, the service life is long, and good application prospects are realized.
Description
Technical field
The present invention relates to a kind of valve group mechanism for bulldozer engine distribution, belong to bulldozer machinery component technology field.
Background technique
Distribution device is the requirement according to the work cycle of carrying out in each cylinder of motor and ignition order, time opening enters with each cylinder of closedown, exhaust valve, fresh inflammable mixture (petrol engine) or air (diesel engine) is made to be entered cylinder in time, waste gas is able to discharge from cylinder in time, bulldozer needs to improve powerful power mechanism in the course of the work, therefore, important to the sealing requirements of engine chamber, valve group mechanism is the bubble-tight parts for ensureing engine chamber, existing valve group mechanism, valve needs bear high temperature and impact frequently, easy wearing and tearing, need often to change, bothersome effort, and, existing airtight conduit is drum, not good with valve seat contacting point sealing, affect the tightness of engine chamber, thus the power affecting bulldozer provides.
Summary of the invention
Technical problem solved by the invention is the valve group of existing bulldozer engine distribution, and valve needs bear high temperature and impact frequently, easily weares and teares, and needs often to change, bothersome effort, the problem that sealing is not good.Valve group mechanism for bulldozer engine distribution of the present invention, the top of valve seat is cone shape, and the contacting point of valve guide bushing and valve seat is the inverted tubaeform shape matched with cone shape, improves sealability, valve stem adopts Silichrome Steel material to make, Wear-resistant, high-temperature resistant, long service life, without the need to frequent replacing, easy to use, structure is simple, easily realizes, has a good application prospect.
To achieve the above object, the technical solution adopted in the present invention is as follows:
A kind of valve group mechanism for bulldozer engine distribution, it is characterized in that: comprise mounting base, valve seat, valve stem, valve guide bushing, valve spring, jump ring, spring seat and lock banking stop, cavity is provided with in described mounting base, described valve seat is positioned at the bottom of cavity, described valve stem is arranged on directly over valve seat, described valve guide bushing is socketed on valve stem, the top of described valve seat is cone shape, the contacting point of described valve guide bushing and valve seat is the inverted tubaeform shape matched with cone shape, the first half of described valve guide bushing is nested in valve spring, described valve spring extends mounting base, the top of described valve spring is fixed on spring seat by jump ring, described spring seat is positioned at the top of valve stem, described lock banking stop is fixed on the top of spring seat, described lock banking stop is connected with air distribution cylinder lid.
Aforesaid a kind of valve group mechanism for bulldozer engine distribution, is characterized in that: the conical taper angle on described valve seat top is 45 °.
Aforesaid a kind of valve group mechanism for bulldozer engine distribution, is characterized in that: the chamber wall of described mounting base inner cavity is provided with one deck rubber lamella.
Aforesaid a kind of valve group mechanism for bulldozer engine distribution, is characterized in that: described valve stem adopts Silichrome Steel material to make.
Aforesaid a kind of valve group mechanism for bulldozer engine distribution, is characterized in that: described valve stem upper air bore dia is greater than exhaust port diameter.
Aforesaid a kind of valve group mechanism for bulldozer engine distribution, is characterized in that: the caliber of the described valve guide bushing first half is greater than the caliber of Lower Half.
The invention has the beneficial effects as follows: the valve group mechanism for bulldozer engine distribution of the present invention, the top of valve seat is cone shape, the contacting point of valve guide bushing and valve seat is the inverted tubaeform shape matched with cone shape, improve sealability, valve stem adopts Silichrome Steel material to make, Wear-resistant, high-temperature resistant, long service life, without the need to frequent replacing, easy to use, have a good application prospect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the valve group mechanism for bulldozer engine distribution of the present invention.
The implication marked in accompanying drawing is as follows:
1: mounting base; 2: valve seat; 3: valve stem; 4: valve guide bushing; 5: valve spring; 6: jump ring; 7: spring seat; 8: lock banking stop; 9: rubber lamella.
Embodiment
Below in conjunction with Figure of description, the present invention is further illustrated.
As shown in Figure 1, a kind of valve group mechanism for bulldozer engine distribution, comprise mounting base 1, valve seat 2, valve stem 3, valve guide bushing 4, valve spring 5, jump ring 6, spring seat 7 and lock banking stop 8, cavity is provided with in described mounting base 1, valve seat 2 is positioned at the bottom of cavity, valve stem 3 is arranged on directly over valve seat 2, valve stem 3 upper air bore dia is greater than exhaust port diameter, when ensureing inflation, enter the gas flow of firing chamber, ensure Thorough combustion, valve guide bushing 4 is socketed on valve stem 3, the top of valve seat 2 is cone shape, valve guide bushing 4 is the inverted tubaeform shape matched with cone shape with the contacting point of valve seat 2, the tightness that valve guide bushing 4 contacts with valve seat 2 is high, improve sealability, the conical taper angle on valve seat 2 top is 45 °, the chamber wall of mounting base 1 inner cavity is provided with one deck rubber lamella 9, valve guide bushing 4 can be protected, extruding valve guide bushing 4, ensure the tightness be socketed with valve stem 3, prevent gas leakage,
The first half of valve guide bushing 4 is nested in valve spring 5, described valve spring 5 extends mounting base 1, the top of valve spring 5 is fixed on spring seat 7 by jump ring 6, described spring seat 7 is positioned at the top of valve stem 3, lock banking stop 8 is fixed on the top of spring seat 7, lock banking stop 8 is connected with air distribution cylinder lid
Described valve stem 3 adopts Silichrome Steel material to make, Wear-resistant, high-temperature resistant, long service life, without the need to frequent replacing, the caliber of valve guide bushing 4 first half is greater than the caliber of Lower Half, is convenient to fixedly mount valve spring 5, valve spring 5 provides restoring force, ensures that valve stem 3 is pressed on valve seat 2.
Valve group mechanism for bulldozer engine distribution of the present invention, in working principle, valve guide bushing 4 ensures that valve 3 bar moves up and down along the axis of itself, realizes the inflation of valve stem 3, exhaust, ensures sealability.
More than show and describe basic principle of the present invention and major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (6)
1. the valve group mechanism for bulldozer engine distribution, it is characterized in that: comprise mounting base (1), valve seat (2), valve stem (3), valve guide bushing (4), valve spring (5), jump ring (6), spring seat (7) and lock banking stop (8), described mounting base is provided with cavity in (1), described valve seat (2) is positioned at the bottom of cavity, described valve stem (3) is arranged on directly over valve seat (2), described valve guide bushing (4) is socketed on valve stem (3), the top of described valve seat (2) is cone shape, described valve guide bushing (4) is the inverted tubaeform shape matched with cone shape with the contacting point of valve seat (2), the first half of described valve guide bushing (4) is nested in valve spring (5), described valve spring (5) extends mounting base (1), the top of described valve spring (5) is fixed on spring seat (7) by jump ring (6), described spring seat (7) is positioned at the top of valve stem (3), described lock banking stop (8) is fixed on the top of spring seat (7), described lock banking stop (8) is connected with air distribution cylinder lid.
2. a kind of valve group mechanism for bulldozer engine distribution according to claim 1, is characterized in that: the conical taper angle on described valve seat (2) top is 45 °.
3. a kind of valve group mechanism for bulldozer engine distribution according to claim 1, is characterized in that: the chamber wall of described mounting base (1) inner cavity is provided with one deck rubber lamella (9).
4. a kind of valve group mechanism for bulldozer engine distribution according to claim 1, is characterized in that: described valve stem (3) adopts Silichrome Steel material to make.
5. a kind of valve group mechanism for bulldozer engine distribution according to claim 1, is characterized in that: described valve stem (3) upper air bore dia is greater than exhaust port diameter.
6. a kind of valve group mechanism for bulldozer engine distribution according to claim 1, is characterized in that: the caliber of described valve guide bushing (4) first half is greater than the caliber of Lower Half.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510173380.3A CN104775868A (en) | 2015-04-13 | 2015-04-13 | Air door group mechanism for bulldozer engine air distribution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510173380.3A CN104775868A (en) | 2015-04-13 | 2015-04-13 | Air door group mechanism for bulldozer engine air distribution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104775868A true CN104775868A (en) | 2015-07-15 |
Family
ID=53617589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510173380.3A Pending CN104775868A (en) | 2015-04-13 | 2015-04-13 | Air door group mechanism for bulldozer engine air distribution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104775868A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240071A (en) * | 2015-10-29 | 2016-01-13 | 济南大学 | Inlet valve connecting device with vortex generation function and without valve clearance |
| CN109973170A (en) * | 2019-05-07 | 2019-07-05 | 哈尔滨工程大学 | A kind of damping noise reduction air valve applied to marine diesel |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1869426A (en) * | 2006-06-26 | 2006-11-29 | 陆斌 | Supply method and device for gas fuel of gas engine |
| CN101131107A (en) * | 2007-09-19 | 2008-02-27 | 张文宝 | Double-overhead camshaft four-valve air distribution mechanism of motorcycle engine |
| CN201074533Y (en) * | 2007-08-02 | 2008-06-18 | 力帆实业(集团)股份有限公司 | Rotary device of engine exhaust door lever |
| CN201103430Y (en) * | 2007-08-28 | 2008-08-20 | 力帆实业(集团)股份有限公司 | Air valve lever and air valve conduit component |
| CN201129237Y (en) * | 2007-12-25 | 2008-10-08 | 胡大杰 | Motorcycle engine cylinder head |
| CN202914152U (en) * | 2012-12-04 | 2013-05-01 | 奉化市动力机械配件有限公司 | Engine valve structure preventing suction of engine oil |
| CN203230470U (en) * | 2013-05-07 | 2013-10-09 | 宁波金鑫粉末冶金有限公司 | Valve guide pipe of natural gas car engine |
| CN203939543U (en) * | 2014-06-27 | 2014-11-12 | 重庆三爱海陵实业有限责任公司 | Valve gear |
| CN204691845U (en) * | 2015-04-13 | 2015-10-07 | 苏州建鑫建设集团有限公司 | A kind of valve group mechanism for bulldozer engine distribution |
-
2015
- 2015-04-13 CN CN201510173380.3A patent/CN104775868A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1869426A (en) * | 2006-06-26 | 2006-11-29 | 陆斌 | Supply method and device for gas fuel of gas engine |
| CN201074533Y (en) * | 2007-08-02 | 2008-06-18 | 力帆实业(集团)股份有限公司 | Rotary device of engine exhaust door lever |
| CN201103430Y (en) * | 2007-08-28 | 2008-08-20 | 力帆实业(集团)股份有限公司 | Air valve lever and air valve conduit component |
| CN101131107A (en) * | 2007-09-19 | 2008-02-27 | 张文宝 | Double-overhead camshaft four-valve air distribution mechanism of motorcycle engine |
| CN201129237Y (en) * | 2007-12-25 | 2008-10-08 | 胡大杰 | Motorcycle engine cylinder head |
| CN202914152U (en) * | 2012-12-04 | 2013-05-01 | 奉化市动力机械配件有限公司 | Engine valve structure preventing suction of engine oil |
| CN203230470U (en) * | 2013-05-07 | 2013-10-09 | 宁波金鑫粉末冶金有限公司 | Valve guide pipe of natural gas car engine |
| CN203939543U (en) * | 2014-06-27 | 2014-11-12 | 重庆三爱海陵实业有限责任公司 | Valve gear |
| CN204691845U (en) * | 2015-04-13 | 2015-10-07 | 苏州建鑫建设集团有限公司 | A kind of valve group mechanism for bulldozer engine distribution |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240071A (en) * | 2015-10-29 | 2016-01-13 | 济南大学 | Inlet valve connecting device with vortex generation function and without valve clearance |
| CN109973170A (en) * | 2019-05-07 | 2019-07-05 | 哈尔滨工程大学 | A kind of damping noise reduction air valve applied to marine diesel |
| CN109973170B (en) * | 2019-05-07 | 2024-05-17 | 哈尔滨工程大学 | Damping and noise-reducing air valve applied to marine diesel engine |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150715 |