CN206175013U - Air valve eccentric wear prevention air distribution mechanism with spherical structure - Google Patents
Air valve eccentric wear prevention air distribution mechanism with spherical structure Download PDFInfo
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- CN206175013U CN206175013U CN201621147758.9U CN201621147758U CN206175013U CN 206175013 U CN206175013 U CN 206175013U CN 201621147758 U CN201621147758 U CN 201621147758U CN 206175013 U CN206175013 U CN 206175013U
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- 230000033001 locomotion Effects 0.000 claims abstract description 65
- 239000010687 lubricating oil Substances 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
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Abstract
The utility model provides an air valve eccentric wear prevention air distribution mechanism with spherical structure, includes rocking arm, rotation axis, air valve pole, air valve head, spherical structure, structure seat and air valve pipe, the outer end and the top-mounting of rocking arm are done the top motion cooperation, and the inner of rocking arm is done the push down motion cooperation with the air valve head behind spherical structure, air valve pole, and the air valve pole is followed and is made the up-and-down motion in its outside air valve pipe, and the bottom of structure seat is connected with spring holder, spring in order to provide the restoring force to the air valve pole, and can set up the external screw thread in order to shelve lubricating oil on the outer wall of air valve pipe. The design can not only avoid the eccentric wear of the air valve and improve the assembly efficiency, but also automatically realize the circular operation of the air valve rod and improve the transmission efficiency.
Description
Technical field
This utility model is related to a kind of air trapping eccentric wear valve actuating mechanism, more particularly to a kind of air trapping with spherical structure
Eccentric wear valve actuating mechanism, it is particularly applicable to arrange spherical structure to absorb the horizontal force produced by rocking arm circular motion, so as to avoid
Air valve stem produces eccentric wear with valve guide extruding.
Background technology
Valve actuating mechanism is the key component of electromotor, and in inlet and outlet stroke, rocking arm promotes air valve to open to electromotor
Open, close.Produce perpendicular to the horizontal force of air valve axis and along the vertical of air valve axis direction in circular motion in rocking arm work
Power.Air valve can produce horizontal displacement in the presence of horizontal force, and do vertical along air valve axis direction under vertical force
Nogata to linear motion, air valve stem can occur eccentric wear under this two kinds of power effect.Air valve eccentric wear is the common of electromotor actual effect
Phenomenon, particularly gas engine, higher in-cylinder combustion temperature can accelerate air valve to wear and tear, and air valve cavitation pitting can be caused when serious.
Authorization Notice No. is CN203879564U, and authorized announcement date is that the utility model patent on October 15th, 2014 is disclosed
A kind of Valve Gear of Diesel of changeable air valve, it includes rocking arm, two air valves, rocker arm shaft and Rocker shaft stands, rocker arm shaft
On be provided with lubricant passage way, rocking-arm air-valve end is provided with inner chamber, and plug, spring, moving mass and piston, rocking arm are provided with inner chamber
On be provided with oil circuit control, oil circuit control one end is arranged on the inwall of rocker shaft hole, the oil circuit control other end be located at inner chamber in
End, is provided with electromagnetic valve on rocker arm shaft.Although the utility model changing valve lift by way of ensureing gazogene
The stability of structure, but it still has following defect：
First, in the utility model, required guide is lacked, air valve stem only moves up and down with itself along longitudinal direction,
Easily shift, so as to peripheral device, such as spring rubs, and does not only result in the generation of air valve eccentric wear, and can damage zero
Part；
Secondly, in the utility model, what rocking arm was made is upper and lower circular motion, and the power that it applies to air valve stem is including level point
Power and vertical stress component, wherein, horizontal component can order about air valve stem and make horizontal hunting, be easily caused it and shift, so as to lead again
Cause the generation of air valve eccentric wear.
The content of the invention
The purpose of this utility model is to overcome defect and problem that air valve eccentric wear easily occurs present in prior art, there is provided
A kind of air trapping eccentric wear valve actuating mechanism with spherical structure that can avoid air valve eccentric wear.
To realize object above, technical solution of the present utility model is：A kind of air trapping with spherical structure is inclined
Mill valve actuating mechanism, including rocking arm, rotary shaft, air valve stem and air valve head, the middle part of the rocking arm is around the rotary shaft positioned at its bottom
Make lower arcuate motion, the outer end of rocking arm and top motion cooperation on upper ejection device work, the inner of rocking arm and the top work of air valve stem
Downward motion coordinates, and the bottom of air valve stem is vertical with the air valve head inside cylinder cap to be connected；
The air trapping eccentric wear valve actuating mechanism also include spherical structure, structure seat and valve guide, the structure seat it is interior
Portion offers structure chamber, the diameter in structure chamber, is highly all higher than the diameter of spherical structure, and the top of spherical structure is interior with rocking arm
Downward motion cooperation is made at end, and downward motion cooperation is made in the bottom of spherical structure with the top of air valve stem, and the top of air valve stem is located at
The inside in structure chamber, air valve stem moves up and down along its outside valve guide is wrapped in.
The bottom of the structure seat offers the chamber rod aperture communicated with structure chamber, the chamber rod aperture and structure chamber, spherical structure,
Air valve stem is coaxially disposed, and the diameter of chamber rod aperture is less than the diameter of spherical structure.
The structure chamber includes upper structure chamber and lower structure chamber, and structure chamber communicates with chamber rod aperture under the upper structure chamber Jing,
And the diameter with diameter greater than lower structure chamber in upper structure chamber.
The air trapping eccentric wear valve actuating mechanism also includes closing piece, spring base and spring, the middle part of the spring base with it is embedded
Its internal closing piece is fixedly connected, and the air valve stem of closing piece and portion therethrough and mistake is fixedly connected, the top of air valve stem with it is spherical
Downward motion cooperation is made in the bottom of structure, and the bottom of air valve stem passes successively vertical with air valve head after structure chamber, closing piece, cylinder cap company
Connect；The outer cover at the position being located on the air valve stem between spring base, cylinder cap is equipped with spring, the top of the spring and spring base
Bottom surface be fixedly connected, the bottom of spring is fixedly connected with the top surface of cylinder cap, and valve guide be located at spring inside.
It is provided with screw thread on the outer wall of the valve guide to shelve lubricating oil；The length of the valve guide is less than or equal to
The shortest length of spring.
The upper ejection device includes cam and push rod, and the cam coordinates with top motion on the bottom work of push rod, push rod
Top coordinates with top motion on the outer end work of rocking arm, and push rod is parallel to each other with air valve stem.
The bottom of the outer end of the rocking arm be connected with upper top with the top of push rod make on top motion coordinate, rocking arm it is interior
The bottom at end be connected with pressing down section with spherical structure at the top of make downward motion and coordinate, and upper top, pressing down section for spherical or
Hemispherical dome structure.
Compared with prior art, the beneficial effects of the utility model are：
1st, in a kind of air trapping eccentric wear valve actuating mechanism with spherical structure of this utility model, between rocking arm and air valve stem
Spherical structure is provided with to transmit power, during transmission, spherical structure can decompose to the tangential force that rocking arm is transmitted, and cut
Horizontal component and vertical stress component are broken down into power, wherein, spherical structure is rotated to absorb horizontal component in structure intracavity, together
When, spherical structure is longitudinally descending to transmit vertical stress component along its cavity wall in structure intracavity, and now, the power that rocking arm is produced only remains vertical
Component is delivered on air valve stem, not comprising horizontal component, so that it is guaranteed that air valve stem is longitudinally smoothly being moved up and down, is not occurred partially
Move, prevent the generation of air valve eccentric wear.Therefore, this utility model can avoid air valve eccentric wear.
2nd, in a kind of air trapping eccentric wear valve actuating mechanism with spherical structure of this utility model, in the outside suit of air valve stem
There is valve guide, when using, air valve stem moves up and down along its outside valve guide is wrapped in, and the guiding effect of valve guide is not
Can only avoid air valve stem from shifting in use, cause air valve eccentric wear, and air valve stem can be positioned in assembling
In order to install.Additionally, can also be threaded to contain lubricating oil in the outer surface of valve guide, so as to reduce friction, enter one
Step avoids the generation of air valve eccentric wear.Therefore, this utility model can not only avoid air valve eccentric wear, and can improve assembling effect
Rate.
3rd, in a kind of air trapping eccentric wear valve actuating mechanism with spherical structure of this utility model, including closing piece, spring base, bullet
Spring with to air valve stem provide restoring force, when using, rocking arm transmission vertical stress component in the presence of, air valve stem driven it is descending,
Meanwhile, spring is driven by air valve stem and is compressed, subsequently, after the vertical stress component in rocking arm transmission weakens or disappears, the spring for being compressed
Bounce-back, the bounce that it is provided drives the up return of air valve stem, descending in order to carry out air valve stem next time.Therefore, this reality
The circular flow of air valve stem can not only be realized with new, and is performed fully automatic.
4th, in a kind of air trapping eccentric wear valve actuating mechanism with spherical structure of this utility model, preferably upper ejection device includes convex
Wheel and push rod, cam coordinates with top motion on the bottom work of push rod, and the top of push rod coordinates with top motion on the outer end work of rocking arm,
When using, constantly step upper top power is provided to push rod by the operation of cam, to maintain air valve stem reciprocating lasting
Carry out, simple, transmission efficiency is higher.Therefore, this utility model can not only realize reciprocating motion of the air valve stem in longitudinal direction, and
And transmission efficiency is higher.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is structural representation when spherical structure is pressed down in Fig. 1.
Fig. 3 is the structural representation of structure seat in Fig. 1.
Fig. 4 is the power exploded view of the inner operation schematic diagram of rocking arm in Fig. 1 and its applying power.
Fig. 5 is that the structural representation after cam, push rod is increased in Fig. 1.
In figure：Upper ejection device 1, cam 11, push rod 12, rocking arm 2, upper top 21, pressing down section 22, rotary shaft 23, air valve stem
3rd, air valve head 31, cylinder cap 32, spherical structure 4, structure seat 5, structure chamber 51, upper structure chamber 511, lower structure chamber 512, chamber rod aperture
52nd, valve guide 6, closing piece 7, spring base 8, spring 9.
Specific embodiment
This utility model is described in further detail below in conjunction with description of the drawings and specific embodiment.
Referring to Fig. 1 to Fig. 5, a kind of air trapping eccentric wear valve actuating mechanism with spherical structure, including rocking arm 2, rotary shaft 23,
Lower arcuate motion is made in air valve stem 3 and air valve head 31, the middle part of the rocking arm 2 around the rotary shaft 23 positioned at its bottom, rocking arm 2
Outer end coordinates with top motion on the work of upper ejection device 1, and the inner of rocking arm 2 is made downward motion and coordinated with the top of air valve stem 3, air valve stem
3 bottom is vertical with the air valve head 31 inside cylinder cap 32 to be connected；
The air trapping eccentric wear valve actuating mechanism also includes spherical structure 4, structure seat 5 and valve guide 6, the structure seat 5
Inside offer structure chamber 51, the diameter in structure chamber 51, be highly all higher than the diameter of spherical structure 4, the top of spherical structure 4
Make downward motion with the inner of rocking arm 2 to coordinate, downward motion cooperation, air valve are made in the bottom of spherical structure 4 with the top of air valve stem 3
The top of bar 3 is located at the inside in structure chamber 51, and air valve stem 3 moves up and down along its outside valve guide 6 is wrapped in.
The bottom of the structure seat 5 offers the chamber rod aperture 52 communicated with structure chamber 51, the chamber rod aperture 52 and structure chamber 51,
Spherical structure 4, air valve stem 3 are coaxially disposed, and the diameter of chamber rod aperture 52 is less than the diameter of spherical structure 4.
The structure chamber 51 includes upper structure chamber 511 and lower structure chamber 512, structure chamber 512 under the upper Jing of structure chamber 511
Communicate with chamber rod aperture 52, and the diameter with diameter greater than lower structure chamber 512 in upper structure chamber 511.
The air trapping eccentric wear valve actuating mechanism also includes closing piece 7, spring base 8 and spring 9, the middle part of the spring base 8 with
The closing piece 7 for being embedded within portion is fixedly connected, closing piece 7 and portion therethrough and the air valve stem 3 crossed is fixedly connected, the top of air valve stem 3
Downward motion cooperation is made in end with the bottom of spherical structure 4, and the bottom of air valve stem 3 passes successively structure chamber 51, closing piece 7, cylinder cap 32
It is vertical with air valve head 31 afterwards to be connected；The outer cover at the position being located on the air valve stem 3 between spring base 8, cylinder cap 32 is equipped with bullet
Spring 9, the top of the spring 9 is fixedly connected with the bottom surface of spring base 8, and the bottom of spring 9 is fixedly connected with the top surface of cylinder cap 32, and
Valve guide 6 is located at the inside of spring 9.
It is provided with screw thread on the outer wall of the valve guide 6 to shelve lubricating oil；The length of the valve guide 6 less than etc.
In the shortest length of spring 9.
The upper ejection device 1 includes cam 11 and push rod 12, and the cam 11 is matched somebody with somebody with top motion on the bottom work of push rod 12
Close, the top of push rod 12 coordinates with top motion on the outer end work of rocking arm 2, and push rod 12 is parallel to each other with air valve stem 3.
The bottom of the outer end of the rocking arm 2 is connected with upper top 21 and is coordinated with top motion on making with the top of push rod 12, is shaken
The inner bottom of arm 2 be connected with pressing down section 22 with the top with spherical structure 4 make downward motion coordinate, and upper top 21, under
Splenium 22 is spherical or hemispherical dome structure.
A kind of using method of the above-mentioned air trapping eccentric wear valve actuating mechanism with spherical structure, the using method include with
Lower step：
First top power is applied with to the outer end of rocking arm 2 along longitudinal direction by upper ejection device 1, so that rocking arm 2 is made downwards around rotary shaft 23
Circular motion, now, the inner of rocking arm 2 applies a tangential force to spherical structure 4, and the tangential force is decomposed into a level point
Power and a vertical stress component, horizontal component promotes spherical structure 4 to rotate to be absorbed in structure chamber 51, and vertical stress component Jing is spherical
Structure 4 promotes air valve stem 3 to make longitudinal downward movement along valve guide 6, and makes air valve head 31 make longitudinal direction inside cylinder cap 32
Downward movement, after downward movement terminates, then drives air valve stem 3 to make longitudinal upstroke, up air valve stem along valve guide 6
3 Jing spherical structures 4 apply a upper top power to the inner of rocking arm 2, while making the return of spherical structure 4, power is pushed up on this and drives rocking arm 2
Make downward circular motion around rotary shaft 23, so that the outer end of rocking arm 2 pushes ejection device 1 so that its return, thinks next time
Upper top is prepared, and circulation successively is carried out.
The air trapping eccentric wear valve actuating mechanism also includes closing piece 7, spring base 8 and spring 9, the middle part of the spring base 8 with
The closing piece 7 for being embedded within portion is fixedly connected, closing piece 7 and portion therethrough and the air valve stem 3 crossed is fixedly connected, the top of air valve stem 3
Downward motion cooperation is made in end with the bottom of spherical structure 4, and the bottom of air valve stem 3 passes successively structure chamber 51, closing piece 7, cylinder cap 32
It is vertical with air valve head 31 afterwards to be connected；The outer cover at the position being located on the air valve stem 3 between spring base 8, cylinder cap 32 is equipped with bullet
Spring 9, the top of the spring 9 is fixedly connected with the bottom surface of spring base 8, and the bottom of spring 9 is fixedly connected with the top surface of cylinder cap 32, and
Valve guide 6 is located at the inside of spring 9；It is described to drive air valve stem 3 to make longitudinal upstroke along valve guide 6 again to refer to：Pressure
The spring 9 of contracting makees rebound motion, and the bounce of spring 9 is up to the applying of air valve stem 3 one Jing after spring base 8, closing piece 7 successively
Power, longitudinal upstroke is made to order about air valve stem 3 along valve guide 6.
The upper ejection device 1 includes cam 11 and push rod 12, and the cam 11 is matched somebody with somebody with top motion on the bottom work of push rod 12
Close, the top of push rod 12 coordinates with top motion on the outer end work of rocking arm 2, and push rod 12 is parallel to each other with air valve stem 3；It is described by upper
Ejection device 1 is applied with top power to the outer end of rocking arm 2 and refers to along longitudinal direction：In the rotation process of cam 11, the salient point of cam 11 is to pushing away
The bottom of bar 12 applies the up power along longitudinal direction, and now, up push rod 12 applies one along longitudinal direction to the outer end of rocking arm 2
Upper top power.
Principle of the present utility model is described as follows：
Referring to Fig. 1 to Fig. 5, this utility model arranges spherical structure between air valve stem, rocking arm, this spherical structure can along appoint
Where to rotation, when using, the horizontal component that rocker motion is produced promotes spherical structure to rotate to divide level in structure intracavity
Power absorbs, meanwhile, the vertical stress component that rocker motion is produced promotes cavity wall of the spherical structure along structure chamber to make the downward movement of longitudinal direction,
So as to promote air valve stem descending along longitudinal direction, and prevent the generation for offseting, be inherently eliminated air valve eccentric wear.
The effect of valve guide：First, air valve stem is guided in operation, prevents its deflection or occur with other parts
Friction, extra, valve guide surface arranges external screw thread and friction is reduced or avoided to contain lubricating oil, further；Secondly, install
When from guiding function, i.e., first open up bullport to insert valve guide, then position air valve stem to enter air valve stem with valve guide
Row is installed, and reduces installation difficulty, improves efficiency of assembling.
Embodiment 1：
Referring to Fig. 1 to Fig. 5, a kind of air trapping eccentric wear valve actuating mechanism with spherical structure, including rocking arm 2, rotary shaft 23,
Air valve stem 3, air valve head 31, spherical structure 4, structure seat 5 and valve guide 6；The middle part of the rocking arm 2 is around the rotation positioned at its bottom
Lower arcuate motion is made in rotating shaft 23, and the outer end of rocking arm 2 coordinates with top motion on the work of upper ejection device 1, and the inside of the structure seat 5 is opened
It is provided with structure chamber 51, the diameter in structure chamber 51, is highly all higher than the diameter of spherical structure 4, top and the rocking arm 2 of spherical structure 4
The inner make downward motion cooperation, downward motion cooperation, the top of air valve stem 3 are made in the bottom of spherical structure 4 and the top of air valve stem 3
Positioned at the inside in structure chamber 51, the bottom of air valve stem 3 is vertical with the air valve head 31 inside cylinder cap 32 to be connected, air valve stem 3 at end
Move up and down along its outside valve guide 6 is wrapped in.
A kind of using method of the above-mentioned air trapping eccentric wear valve actuating mechanism with spherical structure, the using method include with
Lower step：
First top power is applied with to the outer end of rocking arm 2 along longitudinal direction by upper ejection device 1, so that rocking arm 2 is made downwards around rotary shaft 23
Circular motion, now, the inner of rocking arm 2 applies a tangential force to spherical structure 4, and the tangential force is decomposed into a level point
Power and a vertical stress component, horizontal component promotes spherical structure 4 to rotate to be absorbed in structure chamber 51, and vertical stress component Jing is spherical
Structure 4 promotes air valve stem 3 to make longitudinal downward movement along valve guide 6, and makes air valve head 31 make longitudinal direction inside cylinder cap 32
Downward movement, after downward movement terminates, then drives air valve stem 3 to make longitudinal upstroke, up air valve stem along valve guide 6
3 Jing spherical structures 4 apply a upper top power to the inner of rocking arm 2, while making the return of spherical structure 4, power is pushed up on this and drives rocking arm 2
Make downward circular motion around rotary shaft 23, so that the outer end of rocking arm 2 pushes ejection device 1 so that its return, thinks next time
Upper top is prepared, and circulation successively is carried out.
Embodiment 2：
Substance is with embodiment 1, difference：
The bottom of the structure seat 5 offers the chamber rod aperture 52 communicated with structure chamber 51, the chamber rod aperture 52 and structure chamber 51,
Spherical structure 4, air valve stem 3 are coaxially disposed, and the diameter of chamber rod aperture 52 is less than the diameter of spherical structure 4.The structure chamber 51 includes
Upper structure chamber 511 and lower structure chamber 512, structure chamber 512 communicates with chamber rod aperture 52 under the upper Jing of structure chamber 511, and upper structure
The diameter with diameter greater than lower structure chamber 512 in chamber 511.
Embodiment 3：
Substance is with embodiment 1, difference：
In structure --- this air trapping eccentric wear valve actuating mechanism also includes closing piece 7, spring base 8 and spring 9, the spring base 8
Middle part be fixedly connected with the closing piece 7 in the portion that is embedded within, closing piece 7 and portion therethrough and the air valve stem 3 crossed is fixedly connected, air valve
Downward motion cooperation is made in the top of bar 3 and the bottom of spherical structure 4, the bottom of air valve stem 3 pass successively structure chamber 51, closing piece 7,
It is vertical with air valve head 31 after cylinder cap 32 to be connected；The outer cover at the position being located on the air valve stem 3 between spring base 8, cylinder cap 32
Equipped with spring 9, the top of the spring 9 is fixedly connected with the bottom surface of spring base 8, and bottom and the top surface of cylinder cap 32 of spring 9 are fixed
Connection, and valve guide 6 is located at the inside of spring 9.
In use --- it is described to drive air valve stem 3 to make longitudinal upstroke along valve guide 6 again to refer to：The spring of compression
9 make rebound motion, and the bounce of spring 9 applies a up power Jing after spring base 8, closing piece 7 to air valve stem 3 successively, to order about
Air valve stem 3 makees longitudinal upstroke along valve guide 6.
Embodiment 4：
Substance is with embodiment 1, difference：
In structure --- the upper ejection device 1 includes cam 11 and push rod 12, and the cam 11 is made with the bottom of push rod 12
Upper top motion coordinates, and the top of push rod 12 coordinates with top motion on the outer end work of rocking arm 2, and push rod 12 is mutual with air valve stem 3 flat
OK.
In use --- it is described by upper ejection device 1 along longitudinal direction to the outer end of rocking arm 2 be applied with top power refer to：Cam 11 turn
During dynamic, the salient point of cam 11 applies the up power along longitudinal direction, now, up push rod 12 pairs to the bottom of push rod 12
The outer end of rocking arm 2 applies the upper top power along longitudinal direction.
Embodiment 5：
Substance is with embodiment 1, difference：
It is provided with screw thread on the outer wall of the valve guide 6 to shelve lubricating oil；The length of the valve guide 6 less than etc.
In the shortest length of spring 9.The bottom of the outer end of the rocking arm 2 is connected with upper top 21 with top fortune on making with the top of push rod 12
Dynamic to coordinate, the inner bottom of rocking arm 2 is connected with pressing down section 22 to be made downward motion and coordinates with the top with spherical structure 4, and on
Top 21, pressing down section 22 is spherical or hemispherical dome structure.
Claims (7)
1. a kind of air trapping eccentric wear valve actuating mechanism with spherical structure, including rocking arm（2）, rotary shaft（23）, air valve stem（3）With
Air valve head（31）, the rocking arm（2）Middle part around positioned at its bottom rotary shaft（23）Make lower arcuate motion, rocking arm（2）'s
Outer end and upper ejection device（1）Top motion on work coordinates, rocking arm（2）Inner and air valve stem（3）Top make downward motion cooperation,
Air valve stem（3）Bottom be located at cylinder cap（32）Internal air valve head（31）Vertical connection, it is characterised in that：
The air trapping eccentric wear valve actuating mechanism also includes spherical structure（4）, structure seat（5）With valve guide（6）, the structure seat
（5）Inside offer structure chamber（51）, structure chamber（51）Diameter, be highly all higher than spherical structure（4）Diameter, spherical junctions
Structure（4）Top and rocking arm（2）The inner make downward motion cooperation, spherical structure（4）Bottom and air valve stem（3）Top make
Downward motion coordinates, air valve stem（3）Top be located at structure chamber（51）Inside, air valve stem（3）Along the air valve for being wrapped in its outside
Conduit（6）Move up and down.
2. a kind of air trapping eccentric wear valve actuating mechanism with spherical structure according to claim 1, it is characterised in that：It is described
Structure seat（5）Bottom offer and structure chamber（51）The chamber rod aperture for communicating（52）, the chamber rod aperture（52）With structure chamber（51）, ball
Shape structure（4）, air valve stem（3）It is coaxially disposed, chamber rod aperture（52）Diameter be less than spherical structure（4）Diameter.
3. a kind of air trapping eccentric wear valve actuating mechanism with spherical structure according to claim 2, it is characterised in that：It is described
Structure chamber（51）Including upper structure chamber（511）With lower structure chamber（512）, the upper structure chamber（511）Structure chamber under Jing（512）With
Chamber rod aperture（52）Communicate, and upper structure chamber（511）With diameter greater than lower structure chamber（512）Diameter.
4. a kind of air trapping eccentric wear valve actuating mechanism with spherical structure according to claim 1,2 or 3, its feature exists
In：
The air trapping eccentric wear valve actuating mechanism also includes closing piece（7）, spring base（8）With spring（9）, the spring base（8）In
Portion and the closing piece for being embedded within portion（7）It is fixedly connected, closing piece（7）With portion therethrough and cross air valve stem（3）It is fixedly connected, gas
Valve rod（3）Top and spherical structure（4）Bottom make downward motion cooperation, air valve stem（3）Bottom pass structure chamber successively
（51）, closing piece（7）, cylinder cap（32）Afterwards with air valve head（31）Vertical connection；
The air valve stem（3）It is upper to be located at spring base（8）, cylinder cap（32）Between position outer cover be equipped with spring（9）, the spring
（9）Top and spring base（8）Bottom surface be fixedly connected, spring（9）Bottom and cylinder cap（32）Top surface be fixedly connected, and gas
Valve guide（6）Positioned at spring（9）Inside.
5. a kind of air trapping eccentric wear valve actuating mechanism with spherical structure according to claim 4, it is characterised in that：It is described
Valve guide（6）Outer wall on be provided with screw thread to shelve lubricating oil；The valve guide（6）Length be less than or equal to spring
（9）Shortest length.
6. a kind of air trapping eccentric wear valve actuating mechanism with spherical structure according to claim 1,2 or 3, its feature exists
In：The upper ejection device（1）Including cam（11）With push rod（12）, the cam（11）With push rod（12）Bottom make on top fortune
It is dynamic to coordinate, push rod（12）Top and rocking arm（2）Outer end make on top motion coordinate, and push rod（12）With air valve stem（3）Mutually
It is parallel.
7. a kind of air trapping eccentric wear valve actuating mechanism with spherical structure according to claim 6, it is characterised in that：It is described
Rocking arm（2）The bottom of outer end be connected with upper top（21）With with push rod（12）Top make on top motion coordinate, rocking arm（2）'s
Inner bottom is connected with pressing down section（22）With with spherical structure（4）Top make downward motion cooperation, and upper top（21）, under
Splenium（22）For spherical or hemispherical dome structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621147758.9U CN206175013U (en) | 2016-10-21 | 2016-10-21 | Air valve eccentric wear prevention air distribution mechanism with spherical structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621147758.9U CN206175013U (en) | 2016-10-21 | 2016-10-21 | Air valve eccentric wear prevention air distribution mechanism with spherical structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206175013U true CN206175013U (en) | 2017-05-17 |
Family
ID=58679074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621147758.9U Withdrawn - After Issue CN206175013U (en) | 2016-10-21 | 2016-10-21 | Air valve eccentric wear prevention air distribution mechanism with spherical structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206175013U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382139A (en) * | 2016-10-21 | 2017-02-08 | 东风商用车有限公司 | Air valve eccentric wear prevention air distribution mechanism with spherical structure and use method thereof |
-
2016
- 2016-10-21 CN CN201621147758.9U patent/CN206175013U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382139A (en) * | 2016-10-21 | 2017-02-08 | 东风商用车有限公司 | Air valve eccentric wear prevention air distribution mechanism with spherical structure and use method thereof |
| CN106382139B (en) * | 2016-10-21 | 2019-09-03 | 东风商用车有限公司 | Air valve eccentric wear prevention air distribution mechanism with spherical structure and use method thereof |
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