CN201826911U - Upright post in valve actuating mechanism of automobile - Google Patents
Upright post in valve actuating mechanism of automobile Download PDFInfo
- Publication number
- CN201826911U CN201826911U CN2010205649824U CN201020564982U CN201826911U CN 201826911 U CN201826911 U CN 201826911U CN 2010205649824 U CN2010205649824 U CN 2010205649824U CN 201020564982 U CN201020564982 U CN 201020564982U CN 201826911 U CN201826911 U CN 201826911U
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- CN
- China
- Prior art keywords
- tappet
- distribution device
- automobile
- actuating mechanism
- upright post
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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 - Lifetime
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- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model provides an upright post in a valve actuating mechanism of an automobile, belonging to the technical field of automobile engines and solving the problems of sliding friction between a cam and the upright post in the existing valve actuating mechanism, high friction loss and influence on normal working. The upright post in the valve actuating mechanism is arranged on an engine block, and the working end of the upright post is used for contacting with the cam in the valve actuating mechanism and fixedly provided with a pin roll sheathed with a roller. In the valve actuating mechanism of the automobile, the sliding friction between the cam and the upright post is replaced by rolling friction. The upright post in the valve actuating mechanism of the automobile has the advantages of simple structure, high rigidity, low friction loss and effective reducing of friction loss.
Description
Technical field
The utility model belongs to technical field of automobile engine, relates to a kind of tappet, particularly relates to the tappet in a kind of automobile distribution device.
Background technique
The distribution device of motor can be divided into valve group and valve transmission group by its function; The valve group comprises parts such as valve, valve guide bushing, valve seat, spring seat, valve spring, locking plate; The valve transmission group generally is made up of rocking arm, pitman arm shaft, push rod, tappet, camshaft and gear.The function of this distribution device is according to the work cycle of being carried out in each cylinder of motor and the requirement of ignition order, time opening and the inlet and outlet door of closing each cylinder, the interior air of cylinder and the air in the external world are exchanged timely, in compression and inflation process, guarantee the sealing of firing chamber.The working principle of this distribution device is: when the work cycle of cylinder need be opened valve when taking a breath, rotate by the driving mechanism drive cam shaft by bent axle, make the cam part on the camshaft promote the rocking arm rotation by tappet, push rod, adjustment screw successively; the other end of rocking arm is just pushed valve downwards open; spring is further compressed; after the summit of the lug boss of cam turns over tappet; just reduced thrust gradually; valve ventilating hole under the effect of spring tension dwindles gradually, until closing at last to tappet; In the process of compression and acting, valve is tight closing under the effect of spring tension.
Tappet function on the above-mentioned automobile distribution device is that the thrust of cam is passed to push rod or valve stem, and bears the lateral force that is applied when camshaft rotates.Be sliding friction between cam in traditional distribution device and the tappet, wearing and tearing easily between each parts, frictional loss is big, influences proper functioning; According to above-mentioned this situation, hydraulic tappet roller rocker arms drive system has appearred in present stage, though can reduce the wearing and tearing between the parts, the manufacture cost height, and rigidity is little.
Summary of the invention
The purpose of this utility model is at existing deficiency, provides that a kind of simple in structure, mechanical strength is big, the tappet between each parts in the little automobile distribution device of frictional loss.
The purpose of this utility model can realize by following technical proposal: the tappet in a kind of automobile distribution device, be arranged on the engine cylinder-body and its working end is used for contacting with the cam of distribution device, it is characterized in that, be installed with bearing pin on the working end of described tappet, be socketed with roller on the described bearing pin.
This tappet is installed in the engine cylinder-body and by the roller that is installed in tappet one end and contacts with the cam cooperation of directly driving in the distribution device, the relative engine cylinder-body of tappet is done reciprocating linear motion, and the thrust on the cam passed to push rod or valve stem in the distribution device, make opening or closing of valve timing in the distribution device.
In the tappet in above-mentioned automobile distribution device, have two along the supporting portion that is parallel to each other perpendicular to working end end face direction setting in the working end of described tappet, described bearing pin two ends are arranged in the described supporting portion.With being fixed on the supporting portion in the bearing pin flexible connection supporting portion and with roller, make things convenient for the replacing of roller.
In the tappet in above-mentioned automobile distribution device, described tappet is tubular, and this tappet one end has opening.The tubular that tappet is an opening is to be used for installing push rod or valve stem.
In the tappet in above-mentioned automobile distribution device, described tappet has installation base in the bottom of its tubular.Push rod or valve stem are installed on the boss, can control the valve clearance during use.
In the tappet in above-mentioned automobile distribution device, the outer side surface of described tappet has fin.Have groove on the engine cylinder-body with on the corresponding position of this fin, the installation that matches of fin and groove, and between is provided with film lubrication, and the relative engine cylinder-body of tappet can only be done reciprocating linear motion.
In the tappet in above-mentioned automobile distribution device, described fin has two, and corresponding mutually.The purpose of She Zhiing is like this: it is stressed even that tappet is done reciprocating linear motion at engine cylinder-body, and relative movement is stable.
In the tappet in above-mentioned automobile distribution device, described roller is a bearing.This bearing is selected needle bearing for use, and needle bearing is the roller bearing of band cylindrical roller, and roller not only carefully but also long.
As another kind of situation, in the tappet in above-mentioned automobile distribution device, described roller is a roller.Select for use roller as roller, simple in structure, cost is low.
Compared with prior art, tappet in this automobile distribution device, on the working end of tappet, be installed with bearing pin, be socketed with roller on the bearing pin, roller on the tappet is contacted with cam in the distribution device, cam in traditional distribution device and the sliding friction between the tappet are changed over rolling friction, and this new structure is simple, rigidity is big, frictional loss is little, effectively reduces frictional loss.
Description of drawings
Fig. 1 is the sectional structure schematic representation of the tappet in this automobile distribution device.
Fig. 2 is the sectional structure schematic representation of the mode of execution two of the tappet in this automobile distribution device.
Fig. 3 is the perspective view of the tappet in this automobile distribution device.
Among the figure, 1, tappet; 1a, supporting portion; 1b, installation base; The 1c fin; 2, bearing pin; 3, bearing; 4, roller.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
The distribution device of motor can be divided into valve group and valve transmission group by its function; The valve group comprises parts such as valve, valve guide bushing, valve seat, spring seat, valve spring, locking plate; The valve transmission group generally is made up of rocking arm, pitman arm shaft, push rod, tappet, camshaft and gear.The working principle of this distribution device is: when the work cycle of cylinder need be opened valve when taking a breath, rotate by the driving mechanism drive cam shaft by bent axle, make the cam part on the camshaft promote the rocking arm rotation by tappet, push rod, adjustment screw successively; the other end of rocking arm is just pushed valve downwards open; spring is further compressed; after the summit of the lug boss of cam turns over tappet; just reduced thrust gradually; valve ventilating hole under the effect of spring tension dwindles gradually, until closing at last to tappet; In the process of compression and acting, valve is tight closing under the effect of spring tension.
Embodiment one
As shown in Figure 1, the tappet in this automobile distribution device mainly is made up of with being installed with at the bearing 3 of this tappet working end tappet 1.Because the qualification of the working end of tappet 1 and the cam contact position of distribution device convexity wheel shaft, bearing 3 is preferably used needle bearing; Bearing 3 is installed for convenience, on the working end of tappet 1, have two along the supporting portion 1a that is parallel to each other perpendicular to working end end face direction setting, have bearing pin 2 mounting holes on the 1a of supporting portion respectively, be arranged in being connected among the 1a of supporting portion bearing 3 activities in the mounting hole of supporting portion 1a with the two ends of bearing pin 2; For tappet 1 is connected with push rod or valve stem in the distribution device, this tappet 1 is tubular, and offers construction opening at an end of tappet 1, and tappet 1 has installation base 1b in the bottom of its tubular, can control the valve clearance during use.
As shown in Figure 3, the outer side surface of the tappet 1 in this automobile distribution device has two fin 1c, and corresponding mutually; When tappet 1 is installed to engine cylinder-body, two fin 1c of tappet 1 are installed in two corresponding therewith grooves, tappet 1 relative engine cylinder-body can only be done reciprocating linear motion; When practice, reduce the friction of tappet 1 and engine cylinder-body, between tappet fin 1c and cylinder body, be provided with film lubrication, when distribution device is worked, contacting by original tappet 1 working end and the sliding contact of cam of cam on tappet 1 and the camshaft changes over bearing 3 on tappet 1 working end and the rolling of cam contacts, make both frictional losses when contact little, effectively reduce frictional loss.
Embodiment two
As shown in Figure 2, present embodiment and embodiment's one structure is basic identical, its difference is: change with roller 4 with cam contact bearing 3 in the distribution device in the working end of tappet 1, equally be arranged in the mounting hole of supporting portion 1a among the supporting portion 1a that is connected tappet 1 with roller 4 activities with the two ends of bearing pin 2 with embodiment one.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (8)
1. the tappet in the automobile distribution device, be arranged on the engine cylinder-body and its working end is used for contacting with the cam of distribution device, it is characterized in that be installed with bearing pin (2) on the working end of described tappet (1), described bearing pin is socketed with roller on (2).
2. the tappet in the automobile distribution device according to claim 1, it is characterized in that, have two along the supporting portion that is parallel to each other (1a) perpendicular to working end end face direction setting in the working end of described tappet (1), described bearing pin (2) two ends are arranged in the described supporting portion (1a).
3. the tappet in the automobile distribution device according to claim 1 is characterized in that, described tappet (1) is tubular, and this tappet (1) one end has opening.
4. the tappet in the automobile distribution device according to claim 3 is characterized in that, described tappet (1) has installation base (1b) in the bottom of its tubular.
5. the tappet in the automobile distribution device according to claim 1 is characterized in that, the outer side surface of described tappet (1) has fin (1c).
6. the tappet in the automobile distribution device according to claim 5 is characterized in that, described fin (1c) has two, and corresponding mutually.
7. the tappet in the automobile distribution device according to claim 1 is characterized in that, described roller is a bearing (3).
8. the tappet in the automobile distribution device according to claim 1 is characterized in that, described roller is a roller (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205649824U CN201826911U (en) | 2010-10-18 | 2010-10-18 | Upright post in valve actuating mechanism of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205649824U CN201826911U (en) | 2010-10-18 | 2010-10-18 | Upright post in valve actuating mechanism of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201826911U true CN201826911U (en) | 2011-05-11 |
Family
ID=43965453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205649824U Expired - Lifetime CN201826911U (en) | 2010-10-18 | 2010-10-18 | Upright post in valve actuating mechanism of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201826911U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084014A (en) * | 2012-02-08 | 2017-08-22 | 光洋轴承北美有限责任公司 | Follower |
| CN108626047A (en) * | 2017-03-21 | 2018-10-09 | 舍弗勒技术股份两合公司 | Tappet |
-
2010
- 2010-10-18 CN CN2010205649824U patent/CN201826911U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084014A (en) * | 2012-02-08 | 2017-08-22 | 光洋轴承北美有限责任公司 | Follower |
| CN107084014B (en) * | 2012-02-08 | 2020-06-19 | 光洋轴承北美有限责任公司 | Driven mechanism |
| CN108626047A (en) * | 2017-03-21 | 2018-10-09 | 舍弗勒技术股份两合公司 | Tappet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hunan Luoyou Engine Parts Co., Ltd. Assignor: Zhejiang Geely Automobile Research Institute Co., Ltd., Zhejiang Geely Holding Group Company Limited Contract record no.: 2013330000407 Denomination of utility model: Upright post in valve actuating mechanism of automobile Granted publication date: 20110511 License type: Exclusive License Record date: 20131225 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110511 |