CN201401199Y - Valve rocker arm - Google Patents
Valve rocker arm Download PDFInfo
- Publication number
- CN201401199Y CN201401199Y CN2009201193720U CN200920119372U CN201401199Y CN 201401199 Y CN201401199 Y CN 201401199Y CN 2009201193720 U CN2009201193720 U CN 2009201193720U CN 200920119372 U CN200920119372 U CN 200920119372U CN 201401199 Y CN201401199 Y CN 201401199Y
- Authority
- CN
- China
- Prior art keywords
- valve rocker
- valve
- hydraulic tappet
- rocker arm
- contact block
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model provides a valve rocker arm, and belongs to the technical field of machines. The valve rocker arm solves the problems that existing valve rocker arms have oversize gaps, short service life and high manufacture cost, and the like due to long term use. The valve rocker arm comprises a body with a shaft hole on the middle portion, one end of the body is a contact end, the other endof the body is a forced end, and the forced end of the body is provided with a hydraulic tappet which can push the position. The valve rocker arm has the advantages of simple structure, long service life, low manufacture cost and the like.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of Valve Rocker Organization, particularly a kind of valve rocker.
Background technique
Valve Rocker Organization is the indispensable important mechanism of explosive motor, when engine crankshaft rotates, cam also begins rotation, have the overhang correspondence in many inclined to one side centers of circle each rocking arm on the cam; rocking arm corresponding again valve; when overhang forwards the below to; below valve rocker or hydraulic tappet will move under pressure; then cam is passed the power of coming and pass to valve again; at this moment valve moves downward under the effect of downforce; finish and open the cylinder intake passage; or exhaust passage, when the overhang on cam when motion turns to the top through half-turn, valve can be under the reaction force of valve spring; upwards rise, finish the work of closing intake duct or air outlet flue.
Valve Rocker Organization is installed in internal-combustion engine cylinder head top, and the bulb of valve actuating push rod cooperates with the ball hole of rocking arm, and the valve adjuster of valve rocker afterbody contacts with the valve tail plane.After adjusting suitable gap, be that example illustrates with the intake valve working procedure: when valve actuating push rod moved up, by the leverage of intake rocker, the adjustment screw to pressing down, was opened intake valve with valve, and inflammable gas enters in the cylinder.When valve actuating push rod moved down, by the leverage of intake valve rocking bar, valve adjuster was raised, and the effect of the valve spring of intake valve raises down, closes intake valve.Exhaust valve is finished one action, and explosive motor is finished a work cycle.The explosive motor per minute will pass through several thousand such circulations.In light of this situation, for the resistance to flexure of rocker arm support and valve rocker, the stability of rod member all has very high requirement the working life of product.
In actual application, in order to guarantee the service behaviour of valve lever bracket, people have proposed various schemes through long term studies and exploration.For example, Chinese patent literature discloses a kind of reinforced valve rocker [Chinese patent ZL:200820086243.1; Notice of authorization CN201187331Y], comprise the body of a bar shaped having axis hole at the middle part of body, an end of body is provided with one and is the planar hemispherical head of hemisphere with body is connected as a single entity, and the outside of hemispherical head is fixed with floor.This structure may be improved on structural strength, but the valve adjuster that still exists many problems such as valve rocker afterbody has increased the gap by long-term wearing and tearing and has caused and can't work normally, thereby reduced working life greatly, manually adjusted troublesome poeration.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, has proposed a kind of working stability, can adjust the valve rocker of valve clearance automatically.
The purpose of this utility model can realize by following technical proposal: a kind of valve rocker, comprise that its middle part has the body of axis hole, an end of body is a contact jaw, and the other end of body is the force side, it is characterized in that the force side of described body has the hydraulic tappet that can promote this place.
Body is rotatably connected on axle by the axis hole at middle part, hydraulic tappet can act on the force side, hydraulic tappet is in the process to the force side effect, hydraulic tappet is in retracted state earlier, therefore there is being certain clearance the force side under the effect that does not stress and between hydraulic tappet, and along with the running of motor, hydraulic tappet then stretches out and acts on the force side, the effective active length of hydraulic tappet increases, and the valve clearance reduces.Because the power that hydraulic tappet produces is less, can not produce the power of compression valve itself, so when hydraulic tappet and valve clearance reached very little, hydraulic tappet no longer moved.Simultaneously again can not very fast retraction because of hydraulic tappet, the length that makes hydraulic tappet remain on to stretch out is also kept original length and is formed rigidity, opens thereby promote valve, and along with the running of motor, the valve clearance keeps certain interval, has eliminated the valve abnormal sound.In long-term using process, hydraulic tappet also can compensate the problem of the excesssive gap that brings owing to long-term wearing and tearing automatically simultaneously, thereby guarantees that rocking arm can move normally, has also realized the use that rocking arm can be long-term.
In above-mentioned valve rocker, described body force side has recessed positioning hole, and above-mentioned hydraulic tappet is positioned at this positioning hole place.
In above-mentioned valve rocker, described body is made by aluminium material, and described contact jaw is fixed with the contact block that high-abrasive material is made.Make body by aluminium material and reduced the cost that rocking arm is made, and increased the working life of rocking arm by the contact block that high-abrasive material is made simultaneously.
In above-mentioned valve rocker, described contact block is connected on the body by embedding casting mode.Be connected by embedding casting mode and simplified technology.
In above-mentioned valve rocker, described contact block is made by alloy powder metallurgical material.The contact block of being made by alloy powder metallurgy uses more extensive and with low cost.
In above-mentioned valve rocker, the surface of contact of described contact block is a cambered surface.To be that the contact block of cambered surface is reasonable in design realized that whole contact block is stressed evenly to surface of contact.
Compared with prior art, this valve rocker has following advantage; 1, because the force side of body adopts hydraulic tappet to promote, therefore avoided causing the problem of excesssive gap, 2, the body made by aluminium material and not only improved the cost that rocking arm has also reduced manufacturing working life by the contact block that wear-resisting material is made owing to long-term use.
Description of drawings
Fig. 1 is the front elevational schematic of this valve rocker.
Fig. 2 is the schematic top plan view of this valve rocker.
Among the figure, 1, body; 11, contact jaw; 11a, contact block; 12, force side; 2, hydraulic tappet; 3, positioning hole.
Embodiment
As illustrated in fig. 1 and 2, this valve rocker comprises that its middle part has the body 1 of axis hole, one end of the body of being made by aluminium material 1 is a contact jaw 11, contact jaw 11 is fixed with the contact block 11a that is made by high-abrasive material, contact block 11a is connected on the body 1 by embedding casting mode, make body 1 by aluminium material and reduced the cost that rocking arm is made, and increased the working life of rocking arm by the contact block 11a that high-abrasive material is made simultaneously.The other end of body 1 is force side 12, and force side 12 has recessed positioning hole 3, and the force side 12 of body 1 has the hydraulic tappet 2 that can promote this place.Hydraulic tappet 2 is positioned at positioning hole 3 places of force side 12.
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.
Although this paper has used 1, body morely; 11, contact jaw; 11a, contact block; 12, force side; 2, hydraulic tappet; 3, term such as positioning hole, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (6)
1. valve rocker, comprise that its middle part has the body (1) of axis hole, an end of body (1) is contact jaw (11), and the other end of body (1) is force side (12), it is characterized in that the force side (12) of described body (1) has the hydraulic tappet (2) that can promote this place.
2. valve rocker according to claim 1 is characterized in that, described body (1) force side (12) has recessed positioning hole (3), and above-mentioned hydraulic tappet (2) is positioned at this positioning hole (3) and locates.
3. valve rocker according to claim 1 and 2 is characterized in that, described body (1) is made by aluminium material, and described contact jaw (11) is fixed with the contact block (11a) that high-abrasive material is made.
4. valve rocker according to claim 3 is characterized in that, described contact block (11a) is connected on the body (1) by welding manner.
5. valve rocker according to claim 4 is characterized in that, described contact block (11a) is made by alloy powder metallurgical material.
6. valve rocker according to claim 4 is characterized in that, the surface of contact of described contact block (11a) is a cambered surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201193720U CN201401199Y (en) | 2009-05-07 | 2009-05-07 | Valve rocker arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201193720U CN201401199Y (en) | 2009-05-07 | 2009-05-07 | Valve rocker arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201401199Y true CN201401199Y (en) | 2010-02-10 |
Family
ID=41661000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201193720U Expired - Fee Related CN201401199Y (en) | 2009-05-07 | 2009-05-07 | Valve rocker arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201401199Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332753A (en) * | 2015-10-26 | 2016-02-17 | 无锡市永亿精密铸造有限公司 | Reinforced ventilated type air valve rocker arm |
-
2009
- 2009-05-07 CN CN2009201193720U patent/CN201401199Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332753A (en) * | 2015-10-26 | 2016-02-17 | 无锡市永亿精密铸造有限公司 | Reinforced ventilated type air valve rocker arm |
| CN105332753B (en) * | 2015-10-26 | 2018-04-10 | 无锡市永亿精密铸造有限公司 | Reinforce vapor-permeable type valve rocker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8991350B2 (en) | Reset type rocker braking method and device | |
| JP2012525523A (en) | Exclusive rocker arm type engine brake | |
| CN210178433U (en) | Integrated engine braking device | |
| WO2012092693A1 (en) | Auxiliary valve actuating mechanism of engine | |
| KR20120030880A (en) | Engine that is equipped with variable valve device | |
| CN112267924A (en) | Compression release type in-cylinder brake device for engine | |
| CN106968753B (en) | Brake actuating mechanism for engine brake oil way and use method thereof | |
| CN201401199Y (en) | Valve rocker arm | |
| JP2741691B2 (en) | Valve train of internal combustion engine | |
| CN210003346U (en) | Four-stroke internal combustion engine valve mechanism and exhaust cam thereof | |
| CN201461013U (en) | Internal-combustion engine rocker assembly | |
| US20080060596A1 (en) | Desmodromic valve system including single cam surface for closing and opening the valve | |
| JPS6415411A (en) | Operation adjustor of valve and internal combustion engine | |
| CN201255016Y (en) | Engine braking device | |
| CN108266241A (en) | Increase the exhaust cam of the engine cam of braking power | |
| CN110374712B (en) | Integrated engine braking device and working method thereof | |
| JPH09317421A (en) | Engine brake device | |
| CN202451225U (en) | Elastic buffering ejector rod for internal combustion engine | |
| CN101349177A (en) | Variable air valve apparatus of engine | |
| CN202047875U (en) | Cam overhead type valve rocker for valve actuating mechanism | |
| CN206592165U (en) | A kind of engine Bi Gang mechanisms | |
| CN211950618U (en) | Magnetic valve bridge | |
| CN201215029Y (en) | Motorcycle | |
| CN201255014Y (en) | Valve mechanism of engine | |
| CN108049929A (en) | For the valve actuating mechanism assembly of engine braking system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100210 Termination date: 20130507 |