CN2603207Y - Valve adjusting screw assembly for engine of motor cycle - Google Patents
Valve adjusting screw assembly for engine of motor cycle Download PDFInfo
- Publication number
- CN2603207Y CN2603207Y CN 03232773 CN03232773U CN2603207Y CN 2603207 Y CN2603207 Y CN 2603207Y CN 03232773 CN03232773 CN 03232773 CN 03232773 U CN03232773 U CN 03232773U CN 2603207 Y CN2603207 Y CN 2603207Y
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- Prior art keywords
- valve
- adjusting screw
- ball
- contact
- engine
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- Expired - Lifetime
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Abstract
A valve adjusting screw assembly for the motorcycle engine is composed of a rocker, an adjusting screw and a valve rod, wherein the lower part of the adjusting screw is made into a ball head and the upper part of the valve ejecting sleeve is a ball socket and the bottom part is a plane; the ball socket at the upper part of the valve ejecting sleeve is matched with the ball head at the lower part of the adjusting screw and the plane at the bottom is contacted with the top part of the valve rod. Through arranging a valve ejecting sleeve, the utility model has increased the contact area of the overhead valve and reduced the contact pressure in air distribution; the point contact between the valve adjusting screw and the valve rod head part is changed into surface contact so as to ensure that there is basically no contact gap between the valve adjusting screw and valve rod and between the valve ejecting sleeve and the ball head of valve adjusting screw, reduce the fault incident of the strange noise of the engine, increase the use reliability, reliably, accurately and conveniently adjust the valve gap and increase the laboring efficiency.
Description
Technical field the utility model relates to the improvement technology of motorcycle engine parts, is specifically related to the combination of motorcycle engine valve adjuster.
Technical background generally adopts fixedly valve adjustment screw combination of rocking arm in the motorcycle engine distribution device.But in the prior art, the position of valve adjuster top valve generally all is directly to adopt the spherical shape cambered surface, contacts for point with the valve stem head, and area of contact is little, and the pressure of unit area is just bigger, certainly will cause the wearing and tearing of adjusting screw and valve stem head.It is inaccurate to show as the valve clearance adjustment in the reality installation, and the variation of valve clearance is big, will produce quality problems such as shaking sound, cylinder head sound.Even do not find above-mentioned quality problems when detecting, along with the running of motor, above-mentioned fault will progressively expose.
The summary of the invention the purpose of this utility model provides a kind of alleviate valve stem head and the mutual wearing and tearing of adjusting screw, reach the purpose of adjusting the valve clearance more accurately, the valve clearance is stable in guaranteeing to use, and reduces the motorcycle engine valve adjuster combination of abnormal sound fault.
For achieving the above object, the scheme that the utility model is taked is: the combination of motorcycle engine valve adjuster, and comprise rocking arm, adjust screw and valve stem, the bottom of adjusting screw makes bulb, and establishing its top of cover, valve top is that ball-and-socket, bottom are the plane; The top ball-and-socket of valve top cover cooperates with the bottom bulb of adjusting screw, and base plane contacts with valve masthead portion.
The operative orientation of adjusting screw is no more than 10 degree in the axis of operation upper deviation of valve stem.
The utility model increases the area of contact of top valve by valve top cover is set, and reduces contact pressure in the distribution, valve adjuster is contacted with the point of valve stem head change the face contact into.Have following advantage:
1. reduce the abnormal sound rate of breakdown of motor, improve operational safety;
2. regulate the valve clearance accurately, reliably, conveniently, raise labour productivity.
The utility model is described in further detail below in conjunction with accompanying drawing for description of drawings:
Fig. 1 is a valve adjuster composite structure schematic representation of the present utility model;
Fig. 2 is the valve adjuster structural representation of existing structure;
Embodiment is referring to Fig. 1, motorcycle engine valve adjuster combination; rocking arm 1, to adjust screw 2, locking nut 3, valve stem 5, valve spring abutment circle 6, valve collet 7, valve spring 8 all are prior aries; main inventive point of the present utility model is that the bottom of adjusting screw 2 makes bulb; establishing cover 4 its tops, valve top is that ball-and-socket, bottom are the plane; the top ball-and-socket of valve top cover 4 cooperates with the bottom bulb of adjustment screw 2, and base plane contacts with valve stem 5 tops.The ball-and-socket of valve top cover 4 has the lubricant oil sufficient lubrication and can rotate flexibly, and the angle of valve stem head when diverse location contacts with valve top cover lower flat changes when opening and closing to adapt to valve.The operative orientation of adjusting screw 2 is no more than 10 degree in the axis of operation upper deviation of valve stem 5, and therefore, adjustment screw 2 can not produce with valve top cover 4 and come off.
The valve that the utility model increases a top valve pushes up cover 4, and valve top cover 4 bottom design faces are bigger than the area of a circle of valve stem 5 heads, strengthens the area of contact of valve adjuster 2 and valve stem 5 heads; Adopt the principle of universal knot simultaneously, the head of valve adjuster 2 is made spheroidal, the top of valve top cover 4 makes ball-and-socket type, both matching gaps guarantee that lubricant film forms, make and adjust screw 2 and in half ball plane of 180 degree, rotate flexibly at least, guarantee to adjust in the accuracy of top valve and the actual production accuracy of valve with valve top cover 4.
Fig. 2 is the valve adjuster structure of existing structure, the position of valve adjuster top valve is directly adopted spherical, is that point contacts with the valve stem head, and area of contact is little, the pressure of unit area is just bigger, certainly will cause the wearing and tearing of adjusting screw and valve stem head.
Claims (2)
1, motorcycle engine valve adjuster combination comprises rocking arm (1), adjusts screw (2) and valve stem (5), it is characterized in that the bottom of adjusting screw (2) makes bulb, and establishing cover (4) its top, valve top is that ball-and-socket, bottom are the plane; The top ball-and-socket of valve top cover (4) cooperates with the bottom bulb of adjusting screw (2), and base plane contacts with valve stem (5).
2, valve adjuster combination according to claim 1 is characterized in that the operative orientation of adjusting screw (2) is no more than 10 degree in the axis of operation upper deviation of valve stem (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03232773 CN2603207Y (en) | 2003-01-10 | 2003-01-10 | Valve adjusting screw assembly for engine of motor cycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03232773 CN2603207Y (en) | 2003-01-10 | 2003-01-10 | Valve adjusting screw assembly for engine of motor cycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2603207Y true CN2603207Y (en) | 2004-02-11 |
Family
ID=34165414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03232773 Expired - Lifetime CN2603207Y (en) | 2003-01-10 | 2003-01-10 | Valve adjusting screw assembly for engine of motor cycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2603207Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240068A (en) * | 2015-10-23 | 2016-01-13 | 无锡惠发特精密机械有限公司 | Adjusting screw for engine valve |
| CN107882608A (en) * | 2017-10-30 | 2018-04-06 | 成都其联科技有限公司 | A kind of diesel engine spiracle calibrating installation and its calibration method |
-
2003
- 2003-01-10 CN CN 03232773 patent/CN2603207Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240068A (en) * | 2015-10-23 | 2016-01-13 | 无锡惠发特精密机械有限公司 | Adjusting screw for engine valve |
| CN107882608A (en) * | 2017-10-30 | 2018-04-06 | 成都其联科技有限公司 | A kind of diesel engine spiracle calibrating installation and its calibration method |
| CN107882608B (en) * | 2017-10-30 | 2019-10-11 | 许仙福 | A kind of diesel engine spiracle calibrating installation and its calibration method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHONGQING ZONGSHEN ENGINE MANUFACTURE CO., LTD. Free format text: FORMER OWNER: CHONGQING ZONGSHEN TECHNOLOGY DEVELOPMENT + RESEARCH CO. LTD. Effective date: 20101109 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 400039 NO.25, ERLANG ROAD, SHIQIAOPU, HIGH-TECH ZONE, CHONGQING CITY TO: 400054 ZONGSHEN INDUSTRIAL PARK, BA NAN DISTRICT, CHONGQING CITY |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20101109 Address after: 400054 Banan District, Chongqing City Industrial Park Patentee after: Chongqing Zongshen Engine Manufacturing Co., Ltd. Address before: 400039, No. 25 Erlang Road, Chongqing hi tech Development Zone, Shiqiaopu Patentee before: Chongqing Zongshen Technology Development & Research Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130110 Granted publication date: 20040211 |