CN207554138U - A kind of air valve bridge, valve actuating mechanism and engine - Google Patents
A kind of air valve bridge, valve actuating mechanism and engine Download PDFInfo
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- CN207554138U CN207554138U CN201721433797.XU CN201721433797U CN207554138U CN 207554138 U CN207554138 U CN 207554138U CN 201721433797 U CN201721433797 U CN 201721433797U CN 207554138 U CN207554138 U CN 207554138U
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- air valve
- valve bridge
- pin
- sliding pin
- mounting hole
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Abstract
This application discloses a kind of air valve bridge, valve actuating mechanism and engine, wherein, air valve bridge includes air valve bridge ontology and performs pin, further includes sliding pin and return springs；The intermediate position of the air valve bridge ontology is provided with mounting hole, and the return springs are mounted in the mounting hole；The sliding pin is installed in the mounting hole, and can be moved axially in the range of the limiting in the mounting hole by axial limit structure；Elastic reaction is distinguished on the air valve bridge ontology and the sliding pin in the both ends of the return springs.Valve stroke compensation device is integrated on air valve bridge by the air valve bridge, and the compensation of valve stroke can be realized by air valve bridge.Valve stroke compensation device is integrated on air valve bridge, simplifies the structure of rocking arm, is reduced to valve spring or rocking arm as the requirement of foot.
Description
Technical field
The utility model is related to technical field of engines, more particularly to a kind of air valve bridge.It further relates to a kind of comprising the valve
The valve actuating mechanism and engine of bridge.
Background technology
The air distribution system of engine is for ensureing that engine opens and closes valve and realization at correct time point
The supply of engine fresh air and the system of the discharge of exhaust gas.Conventional four-valve engine is general corresponding to same cylinder
Including two inlet valves and two exhaust valves, valve (i.e. two inlet valves or two exhaust valves) of the same name generally uses entire distribution
The same valve actuating mechanism of system is driven.
Existing valve actuating mechanism mainly includes rocking arm, air valve bridge and resetting spring, the valve stem of two valves of the same name
Head respectively with two end in contact of air valve bridge, realize the active force of rocking arm to the transmission of valve.Air valve bridge is mainly by air valve bridge
Ontology and execution pin bank are into one end bottom of air valve bridge ontology is provided with air valve bridge bottom outlet, air valve bridge bottom outlet and one of gas
The head fits contact of door rod, the other end of air valve bridge ontology, which is provided with, performs pin, performs the head of pin and another valve stem
Cooperation contact can realize individually control valve opening by performing pin.
In the prior art, valve stroke compensation device is integrated usually in rocking arm, is changing the one of engine air valve lift
In a little applications (such as changeable air valve or engine braking), the compensation of valve stroke is completed by rocking arm, but by valve stroke
Compensation device social group requires harshness on rocking arm, to valve spring or rocking arm as sufficient, and structure is complex.
In conclusion while how realizing valve stroke compensation, the complexity of rocking arm is reduced, is reduced to valve spring
With rocking arm as the requirement of foot, become those skilled in the art's urgent problem to be solved.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of air valve bridge, to realize the same of valve stroke compensation
When, the complexity of rocking arm is reduced, is reduced to valve spring and rocking arm as the requirement of foot.
Another of the utility model is designed to provide a kind of valve actuating mechanism and engine comprising the air valve bridge,
While valve stroke compensation is realized, to reduce the complexity of rocking arm, reduce to valve spring and rocking arm as the requirement of foot.
In order to achieve the above objectives, the utility model provides following technical scheme：
A kind of air valve bridge including air valve bridge ontology and performs pin, further includes sliding pin and return springs；The air valve bridge
The intermediate position of ontology is provided with mounting hole, and the return springs are mounted in the mounting hole；The sliding pin peace
Loaded in the mounting hole, and can be moved axially in the range of the limiting in the mounting hole by axial limit structure；It is described
Elastic reaction is distinguished on the air valve bridge ontology and the sliding pin in the both ends of return springs.
Preferably, in above-mentioned air valve bridge, the mounting hole is stepped hole, and one end of the return springs is connected to
On the inner face of the stepped hole；The sliding pin passes through the stepped hole；The sliding pin passes through one end of the stepped hole
End face is provided with mounting hole；The axial limit structure includes：
The locating part being fixed in the mounting hole, the locating part are used for and institute close to one end of the air valve bridge ontology
The bottom surface limiting for stating air valve bridge ontology abuts；
The radial direction boss of one end far from the locating part of the sliding pin is set to, the radial direction boss is close to valve
One end of bridge ontology is used to contact with the limiting of the top surface of the air valve bridge, and one end elastic reaction of the return springs is in described
One end of radial direction boss, the distance between the confined planes of the radial direction boss and the confined planes of the locating part are more than the valve
The distance between top surface and bottom surface of bridge ontology.
Preferably, in above-mentioned air valve bridge, the locating part is stop screw, and the mounting hole is threaded hole, described
Stop screw is threadedly coupled with the threaded hole.
Preferably, in above-mentioned air valve bridge, the return springs are sleeved on the outside of the sliding pin.
Preferably, in above-mentioned air valve bridge, the sliding pin is tubular pin, and the return springs are placed on the tubular
The inside of pin, and one end elastic reaction of the return springs is on the inner face of tubular pin；The axial limit structure packet
It includes：
The card slot being arranged on the periphery wall of the tubular pin；
It is opened on the air valve bridge ontology and perpendicular to the card hole of the installation axially bored line, the card hole and the card slot
Position corresponds to；
Backing pin of the plugged and fixed in the card hole, and the backing pin is located in the card slot, the sliding pin passes through card
Slot and backing pin axial limiting slide.
Preferably, in above-mentioned air valve bridge, the inner face of the mounting hole offers the connection mounting hole and outside
Oilhole.
Preferably, in above-mentioned air valve bridge, the return springs are resetting spring.
Present invention also provides a kind of valve actuating mechanism, including air valve bridge and rocking arm, the air valve bridge is for such as to take up an official post
Air valve bridge described in one, the rocking arm as foot is for top surface contact squeeze with the sliding pin of the air valve bridge.
Present invention also provides a kind of engines, and including air valve bridge, the air valve bridge is the gas as described in any of the above item
The raft of pontoons.
Compared with prior art, the beneficial effects of the utility model are：
Air valve bridge provided by the utility model includes air valve bridge ontology, sliding pin and return springs, air valve bridge ontology
Intermediate position is provided with mounting hole, and return springs are mounted in mounting hole；Sliding pin is installed in mounting hole, and can be led to
Axial limit structure is crossed to move axially in the range of the limiting in mounting hole；Elastic reaction is distinguished in gas in the both ends of return springs
On raft of pontoons ontology and sliding pin.Valve stroke compensation device is integrated on air valve bridge by the air valve bridge, during work, in rocking arm as foot
When not being pressed onto sliding pin top surface, sliding pin can be on most under the elastic force effect of return springs in air valve bridge ontology
Position when rocking arm is pressed as foot, as the sufficient elastic force for overcoming return springs, presses sliding pin downlink, in axial limit structure
Axial limiting effect under, sliding pin stop downlink, as foot continue to push, entire air valve bridge is driven to move downward, and then overcome
Valve spring force opens valve.As it can be seen that the application can realize the compensation of valve stroke by air valve bridge.Valve stroke is compensated
Device is integrated on air valve bridge, simplifies the structure of rocking arm, is reduced to valve spring or rocking arm as the requirement of foot.
Valve actuating mechanism and engine provided by the utility model employ the air valve bridge in the application, therefore, drop
The low complexity of rocking arm is reduced to valve spring or rocking arm as the requirement of foot.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiment of the utility model, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is the structure diagram of a kind of air valve bridge that the utility model embodiment provides；
Fig. 2 is the exploded perspective view of a kind of air valve bridge that the utility model embodiment provides；
Fig. 3 is the structure diagram of the first working condition of a kind of air valve bridge that the utility model embodiment provides；
Fig. 4 is the structure diagram of the second working condition of a kind of air valve bridge that the utility model embodiment provides；
Fig. 5 is the structure diagram of another air valve bridge that the utility model embodiment provides；
Fig. 6 is the exploded perspective view of another air valve bridge that the utility model embodiment provides.
Specific embodiment
There is provided a kind of air valve bridges for the core of the utility model, while valve stroke compensation is realized, reduce
The complexity of rocking arm is reduced to valve spring and rocking arm as the requirement of foot.
The utility model also provides a kind of valve actuating mechanism and engine comprising the air valve bridge, is realizing valve liter
While journey compensates, the complexity of rocking arm is reduced, is reduced to valve spring and rocking arm as the requirement of foot.
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
- Fig. 2 is please referred to Fig.1, the utility model embodiment provides a kind of air valve bridge, including air valve bridge ontology 1, performs pin
4th, sliding pin 2 and return springs 3；Wherein, the intermediate position of air valve bridge ontology 1 is provided with mounting hole 11, and return springs 3 limit
Position is installed in mounting hole 11；Sliding pin 2 is installed in mounting hole 11, and can be by axial limit structure in mounting hole 11
It is moved axially in the range of limiting, limits the uncompensation distance of range, that is, valve stroke；The both ends difference elastic reaction of return springs 3
In on air valve bridge ontology 1 and sliding pin 2.
The operation principle and the course of work of the air valve bridge are as follows：Valve stroke compensation device is integrated in valve by the air valve bridge
On bridge, during work, as shown in figure 3, when rocking arm is not pressed onto 2 top surface of sliding pin as foot, sliding pin 2 is in the bullet of return springs 3
Under power effect and under the axial limiting effect of axial limit structure, sliding pin 2 is in air valve bridge ontology 1 on most
Position；As shown in figure 4, when rocking arm is pressed as foot, as the sufficient elastic force for overcoming return springs 3,2 downlink of sliding pin is pressed,
Under the axial limiting effect of axial limit structure, sliding pin 2 stops downlink, at this point, as foot continues to push, drives entire air valve bridge
It moves downward, and then overcomes valve spring force, open valve.As it can be seen that the application can realize the benefit of valve stroke by air valve bridge
It repays.Valve stroke compensation device is integrated on air valve bridge, simplifies the structure of rocking arm, reduce to valve spring or rocking arm as
The requirement of foot.
As Figure 1-Figure 4, a kind of specific sliding pin 2 and axial limit structure are present embodiments provided, wherein, installation
Hole 11 is the stepped hole for penetrating through air valve bridge ontology 1, and one end of return springs 3 is connected on the inner face of stepped hole；Sliding pin 2
Across stepped hole；Sliding pin 2 passes through one end end face of stepped hole to be provided with mounting hole 22；Axial limit structure includes locating part 5
With radial direction boss 21, wherein, locating part 5 is fixed in mounting hole 22, locating part 5 is limited close to one end of air valve bridge ontology 1
The confined planes of part 5 for being abutted with the limiting of the bottom surface of air valve bridge ontology 1, continue to move up for limit slippage pin 2；Radially
Boss 21 is set to one end of the separate locating part 5 of sliding pin 2, and radial direction boss 21 is close to one end of air valve bridge ontology 1, i.e. radial direction
The confined planes of boss 21 for contacting with the limiting of the top surface of air valve bridge ontology 1, continue to move down for limit slippage pin 2；It is multiple
One end elastic reaction of position elastic component 3 is in one end of radial direction boss 21, the confined planes of radial direction boss 21 and the confined planes of locating part 5
The distance between be more than the distance between top surface and bottom surface of air valve bridge ontology 1, the confined planes of radial direction boss 21 and locating part 5
The distance between confined planes subtract distance between the top surface and ground of air valve bridge ontology 1, and obtained difference is valve stroke
Uncompensation distance.
Further, in the present embodiment, locating part 5 is stop screw, and mounting hole 22 is threaded hole, stop screw and spiral shell
Pit is threadedly coupled, and the nut of stop screw is contacted with the limiting of the bottom surface of air valve bridge ontology 1.Certainly, locating part 5 can also be slotting
Fixed rod piece is connect, one end of rod piece is provided with positive stop lug boss.
Further, in the present embodiment, return springs 3 are resetting spring, and sliding pin 2 is T shape pin shaft structures, multiple
Position elastic component 3 is sleeved on the outside of sliding pin 2.
As shown in Figure 5 and Figure 6, another specific sliding pin 2 and axial limit structure are present embodiments provided, wherein,
Sliding pin 2 is tubular pin, and return springs 3 are placed on the inside of tubular pin, and one end elastic reaction of return springs 3 is in tubular
On the inner face of pin.
Axial limit structure includes card slot 23, card hole 13 and backing pin 8.Wherein, card slot 23 is arranged on the periphery wall of tubular pin
On；Card hole 13 is opened on air valve bridge ontology 1 and perpendicular to the axis of mounting hole 11, and card hole 13 is corresponding with the position of card slot 23；
8 plugged and fixed of backing pin is in card hole 13, and backing pin 8 is located in card slot 23, and sliding pin 2 passes through 8 axial limiting of card slot 23 and backing pin
It sliding, i.e., backing pin 8 can be relatively moved with card slot 23, and backing pin 8 is fixed, when sliding pin 2 moves up, the card on sliding pin 2
23 lower wall surface of slot is contacted with the limiting of backing pin 8, and limit slippage pin 2 continues to move up；When sliding pin 2 moves down, on sliding pin 2
The limiting of 23 upper wall surface of card slot and backing pin 8 contact, limit slippage pin 2 continues to move down.The height of card slot 23 is valve liter
The uncompensation distance of journey.
Further, in the present embodiment, for Fig. 5 and second of air valve bridge shown in fig. 6, the inner face of mounting hole is also
Connection mounting hole 11 and external oilhole 12 are offered, for draining and loses heart, slides sliding pin 2 more smooth.
In the present embodiment, return springs are resetting spring, and certainly, return springs can also be elastic rubber.
Based on the described air valve bridge of any of the above embodiment, the utility model embodiment additionally provides a kind of valve actuation
Mechanism, including air valve bridge and rocking arm, wherein, air valve bridge be such as the described air valve bridge of any of the above embodiment, rocking arm as
Foot is for the top surface contact squeeze with the sliding pin 2 of air valve bridge.
Valve stroke compensation device is integrated on air valve bridge, the compensation of valve stroke can be realized by air valve bridge, is not required to
Complicated structure on rocking arm is set, while is reduced to valve spring or rocking arm as the requirement of foot.
The utility model embodiment additionally provides a kind of engine, including air valve bridge, wherein, air valve bridge is such as any of the above
The described air valve bridge of embodiment.
The engine employs air valve bridge in the application, therefore, simplifies the labyrinth of rocking arm, reduces to valve bullet
Spring and rocking arm can realize the function of individually control valve stroke as the requirement of foot by performing pin.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
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 of these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide range consistent with features of novelty.
Claims (9)
1. a kind of air valve bridge including air valve bridge ontology and performs pin, which is characterized in that further include sliding pin and return springs；
The intermediate position of the air valve bridge ontology is provided with mounting hole, and the return springs are mounted in the mounting hole；Institute
It states sliding pin to be installed in the mounting hole, and can be axial in the range of the limiting in the mounting hole by axial limit structure
It is mobile；Elastic reaction is distinguished on the air valve bridge ontology and the sliding pin in the both ends of the return springs.
2. air valve bridge according to claim 1, which is characterized in that the mounting hole be stepped hole, the return springs
One end be connected on the inner face of the stepped hole；The sliding pin passes through the stepped hole；The sliding pin passes through described
One end end face of stepped hole is provided with mounting hole；The axial limit structure includes：
The locating part being fixed in the mounting hole, the locating part are used for and the gas close to one end of the air valve bridge ontology
The bottom surface limiting of raft of pontoons ontology abuts；
The radial direction boss of one end far from the locating part of the sliding pin is set to, the radial direction boss is close to air valve bridge sheet
One end of body is used to contact with the limiting of the top surface of the air valve bridge, and one end elastic reaction of the return springs is in the radial direction
One end of boss, the distance between the confined planes of the radial direction boss and the confined planes of the locating part are more than the air valve bridge sheet
The distance between top surface and bottom surface of body.
3. air valve bridge according to claim 2, which is characterized in that the locating part is stop screw, and the mounting hole is
Threaded hole, the stop screw are threadedly coupled with the threaded hole.
4. air valve bridge according to claim 2, which is characterized in that the return springs are sleeved on the outer of the sliding pin
Portion.
5. air valve bridge according to claim 1, which is characterized in that the sliding pin be tubular pin, the return springs
The inside of the tubular pin is placed on, and one end elastic reaction of the return springs is on the inner face of tubular pin；The axis
Include to position limiting structure：
The card slot being arranged on the periphery wall of the tubular pin；
It is opened on the air valve bridge ontology and perpendicular to the card hole of the installation axially bored line, the card hole and the groove position
It is corresponding；
Backing pin of the plugged and fixed in the card hole, and the backing pin is located in the card slot, the sliding pin by card slot and
Backing pin axial limiting slides.
6. air valve bridge according to claim 5, which is characterized in that the inner face of the mounting hole offers the connection peace
Fill hole and external oilhole.
7. according to claim 1-6 any one of them air valve bridges, which is characterized in that the return springs are resetting spring.
8. a kind of valve actuating mechanism, including air valve bridge and rocking arm, which is characterized in that the air valve bridge is such as claim 1-7
Any one of them air valve bridge, the rocking arm as foot is for top surface contact squeeze with the sliding pin of the air valve bridge.
9. a kind of engine, including air valve bridge, which is characterized in that the air valve bridge is such as claim 1-7 any one of them
Air valve bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721433797.XU CN207554138U (en) | 2017-10-31 | 2017-10-31 | A kind of air valve bridge, valve actuating mechanism and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721433797.XU CN207554138U (en) | 2017-10-31 | 2017-10-31 | A kind of air valve bridge, valve actuating mechanism and engine |
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| Publication Number | Publication Date |
|---|---|
| CN207554138U true CN207554138U (en) | 2018-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721433797.XU Active CN207554138U (en) | 2017-10-31 | 2017-10-31 | A kind of air valve bridge, valve actuating mechanism and engine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725133A (en) * | 2017-10-31 | 2018-02-23 | 潍柴动力股份有限公司 | A kind of air valve bridge, valve actuating mechanism and engine |
| CN112955632A (en) * | 2018-11-06 | 2021-06-11 | 雅各布斯车辆系统公司 | Valve bridge system comprising a valve bridge guide |
-
2017
- 2017-10-31 CN CN201721433797.XU patent/CN207554138U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725133A (en) * | 2017-10-31 | 2018-02-23 | 潍柴动力股份有限公司 | A kind of air valve bridge, valve actuating mechanism and engine |
| CN112955632A (en) * | 2018-11-06 | 2021-06-11 | 雅各布斯车辆系统公司 | Valve bridge system comprising a valve bridge guide |
| CN112955632B (en) * | 2018-11-06 | 2022-09-16 | 雅各布斯车辆系统公司 | Valve bridge system comprising a valve bridge guide |
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