CN206889042U - Bushing and the engine with the bushing - Google Patents
Bushing and the engine with the bushing Download PDFInfo
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- CN206889042U CN206889042U CN201720671748.3U CN201720671748U CN206889042U CN 206889042 U CN206889042 U CN 206889042U CN 201720671748 U CN201720671748 U CN 201720671748U CN 206889042 U CN206889042 U CN 206889042U
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- bushing
- oil groove
- reinforcement structure
- oil
- swing arm
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Abstract
The utility model discloses a kind of bushing and with the bushing engine.The bushing includes：Bush body；Bushing oil groove, the bushing oil groove are arranged on the inner surface of the bush body, and the bushing oil groove includes：The oil groove of bushing first and the oil groove of bushing second, the oil groove of bushing first has bushing the first oil groove inner joint and bushing the first oil groove external tapping, the first oil groove of bushing external tapping extends to one of end of the bush body, bushing the first oil groove inner joint connects with the oil groove of bushing second, circumferentially extending of the oil groove of bushing second along the bush body.According to bushing of the present utility model, by setting bushing oil groove, so that during engine cold-start, the inner surface of bushing can quickly, fully be lubricated, so that reliable and stable oil film is formed between motion, so as to advantageously reduce the fretting wear between motion, reduce cost, and advantageously ensure that the smooth of motion.
Description
Technical field
The utility model is related to automotive field, in particular to a kind of bushing and with the bushing engine.
Background technology
It is also more and more with continuous ripe and development, the adjustment structure of lift range variable of lift range variable technology
Sample, the lubricant effect in valve actuating mechanism between each parts have significant impact to the performance of mechanism.
Mist of oil splash lubrication is used mostly in existing valve actuating mechanism, this lubricating system cannot be guaranteed that valve actuating mechanism fully moistens
It is sliding, and in engine cold-start, there is no sufficient mist of oil in cylinder cap.In recent years, bushing is widely applied within the engine, existing
Some bush structures are mostly introduced the mist of oil in cylinder cap by gap, in order to be lubricated to the parts of installation, if cylinder
Mist of oil is not produced in lid, then can cause insufficient lubrication, or even the situation of dry friction, and this can have a strong impact on the use longevity of parts
Life.
Utility model content
In view of this, the utility model is directed to a kind of bushing, and the parts on bushing can be filled
Share in the benefit cunning.
To reach above-mentioned purpose, what the technical solution of the utility model was realized in：
A kind of bushing includes：Bush body；Bushing oil groove, the bushing oil groove are arranged on the inner surface of the bush body
On, the bushing oil groove includes：The oil groove of bushing first and the oil groove of bushing second, the oil groove of bushing first have the oil of bushing first
Groove inner joint and bushing the first oil groove external tapping, the first oil groove of bushing external tapping extend to wherein the one of the bush body
Individual end, bushing the first oil groove inner joint connect with the oil groove of bushing second, and the oil groove of bushing second is described in
The circumferentially extending of bush body.
According to some embodiments of the utility model, the oil groove of bushing second is circular arc, the oil groove of bushing first
It is vertical with the oil groove of bushing second.
Further, the oil groove of bushing first is connected to the minimum point of the oil groove of bushing second.
According to some embodiments of the utility model, the oil groove of bushing first prolongs along the axial linear of the bush body
Stretch.
According to some embodiments of the utility model, center of circle angle corresponding to the oil groove of bushing second is more than 180 ° and not
More than 360 °.
Further, center of circle angle corresponding to the oil groove of bushing second is 250 ° -290 °.
According to some embodiments of the utility model, the oil groove of bushing second and another end face of the bush body
It is spaced apart.
Further, the oil groove of bushing second and the distance of another end face of the bush body are less than the bushing
Second oil groove and the distance of one of end face of the bush body.
According to some embodiments of the utility model, the depth of the bushing oil groove is 0.3mm-0.7mm, and width is 1-
3mm。
According to some embodiments of the utility model, the bushing is steel bushing, and the inner peripheral surface of the bushing is set
There is signal bronze layer.
Relative to prior art, bushing described in the utility model has the advantage that：
According to bushing described in the utility model, by setting bushing oil groove so that during engine cold-start, bushing it is interior
Surface can quickly, fully be lubricated so that reliable and stable oil film be formed between motion, so as to advantageously reduce
Fretting wear between motion, cost is reduced, and advantageously ensure that the smooth of motion.
Another purpose of the present utility model is to propose a kind of engine, and the engine includes valve actuating mechanism, described
Valve actuating mechanism includes above-mentioned bushing.
Brief description of the drawings
Form a part of accompanying drawing of the present utility model to be used for providing further understanding to of the present utility model, this practicality is new
The schematic description and description of type is used to explain the utility model, does not form to improper restriction of the present utility model.
In accompanying drawing：
Fig. 1 is the exploded perspective view of valve actuating mechanism；
Fig. 2 is the assembling schematic diagram of valve actuating mechanism；
Fig. 3 is the schematic diagram in first direction of the middle swing arm of the utility model embodiment；
Fig. 4 is the schematic diagram in second direction of the middle swing arm of the utility model embodiment；
Fig. 5 is the assembling schematic diagram of body, bushing and middle arm shaft；
Fig. 6 is the stereogram of bushing；
Fig. 7 is bushing along bus expanded schematic diagram；
Fig. 8 is assembling schematic diagram of the bushing in middle swing arm.
Description of reference numerals：
Valve actuating mechanism 1000, camshaft 101, cam 102, elasticity reset device 103, mandrel 104, eccentric wheel 105, driving
Motor 106, eccentric axle assembly 107, regulating arm 108, middle arm shaft 109, middle swing arm 110, middle swing arm roller 111, company
Connect arm 112, fulcrum bearing 113, linking arm steady pin 114, valve rocker 115, valve 116；
Body 501, middle swing arm axis hole 5011, the first valve actuation portion 502, the first driving face 5021, the second gas
Door drive division 503, the second driving face 5031, roller installation portion 504, reinforcement structure 505, the first reinforcement structure 5051, second
Reinforcement structure 5052, the 3rd reinforcement structure 5053, the 4th reinforcement structure 5054, the 5th reinforcement structure 5055, the 6th reinforcement structure
506th, splashing fuel feed hole 507, shoe cream room 508；
Bushing 551, bush body 552, bushing oil groove 553, the first oil groove of bushing 554, bushing the first oil groove inner joint
5541st, the first oil groove of bushing external tapping 5542, the second oil groove of bushing 555.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the utility model can
To be mutually combined.
Valve actuating mechanism 1000 is described in detail with reference first to Fig. 1 and Fig. 2.
Valve actuating mechanism 1000 can include valve 116, middle swing arm 110, eccentric axle assembly 107, camshaft 101, driving
Motor 106, fulcrum bearing 113 etc..The valve actuating mechanism 1000 can be used for the opening and closing for controlling inlet valve 116.
Shown referring to Figures 1 and 2, the top of valve 116 is provided with valve rocker 115, on valve rocker 115 rotationally
It is provided with valve roller.Valve 116 can along valve center line move up and down with open or close the air inlet in cylinder head (with
It is schematically illustrate exemplified by inlet valve).Middle swing arm 110 is arranged between valve 116 and camshaft 101, the bottom of middle swing arm 110
With driving face (for example, first driving 5021 and second driving face 5031 of face), driving face is bonded with valve roller.
The top of middle swing arm 110 has middle swing arm roller 111, and middle arm shaft 109 is equipped with middle swing arm 110, middle
Swing arm 110 can be swung around middle arm shaft 109.
With reference to shown in Fig. 1 and Fig. 2, cam 102 is arranged with camshaft 101, cam 102 pastes with middle swing arm roller 111
Close.Cam 102 rotates with camshaft 101, and camshaft 101 can be tied with the bent axle of engine by timing sprocket or Timing Belt etc.
Structure links.Fulcrum bearing 113 is fixed on cylinder cap, and linking arm steady pin 114 is fixed in fulcrum bearing 113, linking arm steady pin 114
It is rotatablely connected with one end (lower end in such as Fig. 1) of linking arm 112, the other end (upper end in such as Fig. 1) of linking arm 112 is with
Between arm shaft 109 be rotatablely connected.
Eccentric axle assembly 107 includes mandrel 104 and the eccentric wheel 105 being set on mandrel 104, eccentric wheel 105 and mandrel
104 eccentric settings, one end (such as stub end) of regulating arm 108 are set in eccentric wheel 105, the other end (such as microcephaly of regulating arm 108
End) it is rotatablely connected with middle arm shaft 109.Elasticity reset device 103 is used to provide elastic reset power to middle swing arm 110, makes
Swing arm roller 111 is bonded always with cam 102 among obtaining, and prevents middle swing arm 110 from flying off.Motor 106 is used to drive core
Axle 104 rotates, and such as passes through worm-and-wheel gear.
When valve actuating mechanism 1000 works, cam 102 rotates with camshaft 101, and cam 102 periodically drives middle put
Arm 110 is swung around middle arm shaft 109, the driving face driving valve roller of the middle bottom of swing arm 110 so that valve 116
Moved downward along valve center line, so as to open the air inlet in cylinder head, realize air inlet.Wherein, valve 116 can pass through valve
Spring is resetted, and middle swing arm 110 can be resetted by elasticity reset device 103.
When needing to adjust 116 lift of valve, motor 106 rotates clockwise or counterclockwise with moving mandrel 104, by
This eccentric axle assembly 107 drives middle swing arm 110 to be swung around the central axis of linking arm steady pin 114 by regulating arm 108,
So as to change the contact position in the driving face of middle swing arm 110 and valve roller, and then continuously variably adjust 116 liters of valve
Cheng Liang.
Wherein, the central axis of linking arm steady pin 114 can with valve roller when air inlet (valve 116 close)
Mandrel line overlaps.
Describe middle swing arm 110 in detail below with reference to Fig. 1-Fig. 5 and in conjunction with the embodiments.
Shown in reference picture 3- Fig. 4, middle swing arm 110 can include body 501, the first valve actuation portion 502, the second gas
Door drive division 503, roller installation portion 504 and reinforcement structure 505.
Formed with middle swing arm axis hole 5011 in body 501, middle arm shaft 109 is suitable to be located in middle swing arm axis hole
In 5011, and coordinate between middle arm shaft 109 and middle swing arm axis hole 5011 for gap, thereby facilitating therebetween
Opposing oscillatory moves.
First valve actuation portion 502 and duaspiracle drive division 503 are arranged on the bottom of body 501, and further,
First valve actuation portion 502 and duaspiracle drive division 503 are along the axially spaced of body 501, the first valve actuation portion 502
With the first driving face 5021, duaspiracle drive division 503 has the second driving face 5031, as shown in Figure 4.Thus, one
Individual middle swing arm 110 can control the opening and closing of two valves 116 simultaneously, advantageously reduce number of parts, while favorably
In the uniformity for two valve strokes for improving same cylinder.
Specifically, the first driving 5021 and second driving face 5031 of face is used to drive valve roller, so that
Valve rocker 115 drives valve 116 to be moved downward along valve center line, and then opens the air inlet in cylinder head, realizes air inlet.
First driving 5021 and second driving face 5031 of face can be made up of the camber line of different curvature, coordinate middle swing arm 110
Swing, realize the continuous variable of valve stroke.
Roller installation portion 504 is arranged on the top of body 501, and the space between two muscle of roller installation portion 504 is bullet
Spring stopper slot, for the spring retainer in elasticity reset device 103.
Reinforcement structure 505 is between the first valve actuation portion 502 and duaspiracle drive division 503, and reinforcement structure 505
Connect the first valve actuation portion 502, duaspiracle drive division 503 and body 501.Reinforcement structure 505 can increase middle pendulum
Intensity, the rigidity of arm 110.Specifically, reinforcement structure 505 effectively improves the first valve actuation portion 502 and driven with duaspiracle
The relative deformation in dynamic portion 503, so as to be advantageous to lift the uniformity of valve stroke precision and each cylinder valve stroke.
Middle swing arm 110 is the big part of high-speed motion, stress in continuous valve actuating mechanism 1000, passes through to set and strengthens knot
Structure 505, it can effectively mitigate the weight of middle swing arm 110, so as to be advantageous to reduce the rotary inertia of middle swing arm 110 so that
Middle swing arm 110 can realize high speed swinging without flying off.
In a particular embodiment, middle swing arm 110 uses metal injection molding technology, it is possible thereby to realize labyrinth
Design, and for production in enormous quantities, it is metal injection molded to improve processing efficiency, reduce processing cost.
For middle swing arm 110, by setting reinforcement structure 505, the rigidity of middle swing arm 110 is improved, to prevent
Only it deforms, while can effectively mitigate the weight of middle swing arm 110, save and process raw material, save centre swing arm 110
Space, further, the weight of middle swing arm 110 reduce, and are advantageous to reduce the rotary inertia of middle swing arm 110 so that
Middle swing arm 110 can realize high speed swinging without flying off.
In certain embodiments, reinforcement structure 505 can include the first reinforcement structure 5051, the and of the second reinforcement structure 5052
3rd reinforcement structure 5053.Wherein, the first reinforcement structure 5051 connects being driven towards duaspiracle for the first valve actuation portion 502
The medial surface in portion 503 and body 501, the valve of direction first of the second reinforcement structure 5052 connection duaspiracle drive division 503
The medial surface of drive division 502 and body 501, the 3rd reinforcement structure 5053 are connected to the first reinforcement structure 5051 and second and strengthened
Between structure 5052.
Further, each in the first reinforcement structure 5051 and the second reinforcement structure 5052 is relatively orthogonal to body
501 and it is obliquely installed by the vertical plane of the center of body 501.Specifically, vertical plane mentioned here is orthogonal to this
The axis in body portion 501.First reinforcement structure 5051 and the second reinforcement structure 5052 are obliquely installed with respect to vertical plane.
Further, the first reinforcement structure 5051 and the second reinforcement structure 5052 are symmetrical arranged on vertical plane.
Specifically, the first end of the first reinforcement structure 5051 is connected with the first valve actuation portion 502, and the first reinforcement structure
5051 the second end is connected with body 501.Similarly, the first end of the second reinforcement structure 5052 and duaspiracle drive division
503 are connected, and the second end of the second reinforcement structure 5052 is connected with body 501, and the first reinforcement structure 5051 and second is strengthened
The distance between first end of structure 5052 is more than between the first reinforcement structure 5051 and the second end of the second reinforcement structure 5052
Distance.
Wherein, the first end of the first reinforcement structure 5051 be located at the first driving face 5021 apart from body 501 farther out
End (i.e. lower end in Fig. 4), the first end of the second reinforcement structure 5052 is located at the distance sheet in the second driving face 5031
The end (i.e. lower end in Fig. 4) of body portion 501 farther out.So, the first reinforcement structure 5051 and the second reinforcement structure are added
5052 development length so that strengthened in the first larger driving 5021 and second driving face 5031 of face of stress.
Alternatively, the 3rd reinforcement structure 5053 is one, and axial direction of the 3rd reinforcement structure 5053 along body 501 is prolonged
Stretch.In certain embodiments, the second of the 3rd reinforcement structure 5053 and the first reinforcement structure 5051 and the second reinforcement structure 5052
The distance at end is less than the distance with the first reinforcement structure 5051 and the first end of the second reinforcement structure 5052.First reinforcement structure
5051st, the second reinforcement structure 5052 and the 3rd reinforcement structure 5053 are configured to " A " font reinforcement, thus obtained reinforcement structure
505 is more stable, and stiffening effect is also more notable.
In other optional embodiments, the 3rd reinforcement structure 5053 is multiple, and multiple 3rd reinforcement structures 5053
It is connected in parallel with each other between the first reinforcement structure 5051 and the second reinforcement structure 5052, it is possible thereby to further enhance centre
The strength and stiffness of swing arm 110.
Further, middle swing arm 110 can also include the 4th reinforcement structure 5054 and the 5th reinforcement structure 5055, and the 4th
Reinforcement structure 5054 is connected between the first reinforcement structure 5051 and the first valve actuation portion 502, and the 5th reinforcement structure 5055 connects
It is connected between the second reinforcement structure 5052 and duaspiracle drive division 503, it is possible thereby to further enhance the centering of reinforcement structure 505
Between the strength and stiffness of swing arm 110 stiffening effect.
Alternatively, each in the 4th reinforcement structure 5054 and the 5th reinforcement structure 5055 is trapezoidal, trapezoidal top
(shorter) is connected with corresponding reinforcement structure 505 and trapezoidal bottom (longer) is connected with corresponding valve actuation portion, and trapezoidal
Short waist it is located above and long waist is located below.In other words, the top of the 4th reinforcement structure 5054 and the phase of the first reinforcement structure 5051
Even and the bottom of the 4th reinforcement structure 5054 is connected with the first valve actuation portion 502, and the top of the 5th reinforcement structure 5055 adds with second
Strong structure 5052 is connected and the bottom of the 5th reinforcement structure 5055 is connected with duaspiracle drive division 503.So, transverse and longitudinal is formed to interlock
Reinforcement structure, enhance the intensity of the first reinforcement structure 5051 and the second reinforcement structure 5052, prevent the first reinforcement structure
5051 and the stress of the second reinforcement structure 5052 fracture.
In certain embodiments, the 6th reinforcement structure 506 that transverse and longitudinal is interlocked is additionally provided with the outer surface of body 501.
6th reinforcement structure 506 is configured to a plurality of reinforcement of transverse and longitudinal intersection, and the 6th reinforcement structure 506 further increases body
501 rigidity.
Splashing fuel feed hole 507 is provided with body 501, splashing fuel feed hole 507 is located at the middle roller 111 of swing arm 110
Lower section, splashing fuel feed hole 507 connect with the middle inside of swing arm axis hole 5011.In the example of hgure 5, in middle swing arm axis hole 5011
Bushing 551 is provided with, middle arm shaft 109 is located in bushing 551.The lubricating oil of splashing is entered by splashing fuel feed hole 507
Middle swing arm axis hole 5011, middle swing arm axis hole 5011 is interior to form shoe cream room 508, and the design of shoe cream room 508 causes splash lubrication
It is more reliable, and at the beginning of valve actuating mechanism 1000 starts, the lubricating oil that shoe cream room 508 stores can ensure that middle swing arm 110 exists
With regard to effectively lubricating can be obtained when starting running.
Describe bushing 551 of the present utility model in detail below with reference to Fig. 5-Fig. 8 and in conjunction with the embodiments.
Shown in reference picture 5- Fig. 6, bush body 552 and lining can be included according to the bushing 551 of the utility model embodiment
Cover oil groove 553.It can be pressed between bushing 551 and the body of middle swing arm 110 501 by interference and assembled, be thus advantageous to
The assembly reliability between bushing 551 and middle swing arm 110 is lifted, meanwhile, between being between bushing 551 and middle arm shaft 109
Gap coordinates, and advantageously ensures that the relative rotation between bushing 551 and middle arm shaft 109 is more smooth.
Bushing oil groove 553 is arranged on the inner surface of bush body 552, and bushing oil groove 553 can lead to lubricating oil
Adjacent parts, while bushing oil groove 553 can store lubricating oil, so as to ensure valve actuating mechanism 1000 under any operating mode, all
Can sufficiently it be lubricated.
Further, bushing oil groove 553 can include the first oil groove of bushing 554 and the second oil groove of bushing 555, bushing first
Oil groove 554 has the first oil groove of bushing inner joint 5541 and the first oil groove of bushing external tapping 5542, bushing the first oil groove external tapping
5542 extend to one of end of bush body 552, the first oil groove of bushing inner joint 5541 and the second oil groove of bushing 555
Connection, circumferentially extending of the second oil groove of bushing 555 along bush body 552.
Shown in reference picture 5, Fig. 8, in a particular embodiment, two bushings are provided with the body 501 of middle swing arm 110
551, and two bushings 551 are separately positioned on the both sides of shoe cream room 508, two bushings 551 are oppositely arranged, i.e. two bushings 551
The first oil groove of bushing 554 extend to close mutual direction.
The flow direction of lubricating oil is as shown in the direction of arrow in Fig. 8.Specifically, enter from the splashing of middle swing arm 110
The fluid that oilhole 507 enters body 501 will be stored in shoe cream room 508 first, and the lubricating oil in shoe cream room 508 is through bushing
First oil groove 554 enters in bushing 551, wherein, a part of lubricating oil in the first oil groove of bushing 554 enters the oil groove of bushing second
In 555, and the first oil groove of bushing 554 is remained in along the place circumferencial direction flowing of the second oil groove of bushing 555, a part of lubricating oil
It is interior.Under stopped status, lubricating oil is stored in shoe cream room 508, the first oil groove of bushing 554 and the second oil groove of bushing 555, to protect
It can be lubricated in time when demonstrate,proving engine cold-start.
In the operating condition, the lubricating oil in the first oil groove of bushing 554 and the second oil groove of bushing 555 travels further into bushing
Between the contact surface of 551 inner surfaces and middle arm shaft 109, so as between middle arm shaft 109 and the contact surface of bushing 551
Oil film is formed, this oil film can bear certain pressure, and can play good lubrication, so as to effectively reduce middle pendulum
Friction and wear between arm 110 and middle arm shaft 109.
In addition, by setting bushing 551, the service life of middle swing arm 110 can be extended, when serious wear, only needed
More resleeve 551, bushing 551 is simple in construction, handling ease, so as to advantageously reduce the cost of valve actuating mechanism 1000.
According to the bushing 551 of the utility model embodiment, by setting bushing oil groove 553 so that during engine cold-start,
The inner surface of bushing 551 can quickly, fully be lubricated so that reliable and stable oil film is formed between motion, from
And advantageously reduce the fretting wear between motion, reduce cost, and advantageously ensure that the smooth of motion.
In some embodiments of the utility model, shown in reference picture 6, the second oil groove of bushing 555 is circular arc, bushing
One oil groove 554 is vertical with bushing the second oil groove 555.The first oil groove of bushing 554 is horizontally disposed, it is ensured that lubricating oil is along bushing
551 axially flow to the inner surface of bushing 551, and the second oil groove of bushing 555 is vertically arranged, it is ensured that lubricating oil is along bushing
551 radial direction flows to the inner surface of bushing 551, the first oil groove of bushing 554 and the collective effect of the second oil groove of bushing 555, can make
Lubricating oil is quick, fully covers the whole inner surface of bushing 551.
Further, shown in reference picture 8, the first oil groove of bushing 554 is connected to the minimum point of the second oil groove of bushing 555, by
This, the lubricating oil of the bottom of shoe cream room 508 easily can enter in the first oil groove of bushing 554.
Shown in reference picture 7, axial linear extension of the first oil groove of bushing 554 along bush body 552, it is possible thereby to ensure to moisten
Lubricating oil axially flows along bushing 551 to the inner surface of bushing 551.Center of circle angle corresponding to the second oil groove of bushing 555 exceedes
180 ° and no more than 360 °, in the swing process of middle swing arm 110, remaining unslotted region can also be covered by lubricating oil.
It so both can guarantee that and lubricated to valve actuating mechanism 1000, and can prevents oil leak, ensures oil-film stabilization, and is advantageous to bushing
Second oil groove 555 stores lubricating oil under stopped status.Further, center of circle angle corresponding to the second oil groove of bushing 555 is
250 ° -290 °, for example, the center of circle angle can be 270 °.
Understood with reference to Fig. 6-Fig. 7, the second oil groove of bushing 555 and another end face (left side in such as Fig. 7 of bush body 552
End face) it is spaced apart, this intersegmental distance separated both can guarantee that in middle arm shaft 109 and bushing 551 with respect in operation process, serve as a contrast
Oil film can be formed by covering on 551 inner surfaces, and can for prevent the left side of machine oil bushing 551 from Fig. 7 leakage lose oil film.
Further, the distance of the second oil groove of bushing 555 and another end face of bush body 552 is less than the oil of bushing second
Groove 555 and the distance of one of end face of bush body 552.Referring in particular to shown in Fig. 7, the second oil groove of bushing 555 and bushing
The distance of the left side of body 552 is less than the second oil groove of bushing 555 and the distance of the right side of bush body 552, is advantageous to moisten
Lubricating oil covers the whole inner surface of bushing 551.
The depth of bushing oil groove 553 is 0.3mm-0.7mm, and width is 1-3mm.
In some embodiments of the utility model, bushing 551 is copper bushing 551, the weight of copper bushing 551 compared with
Gently, the light-weight design of valve actuating mechanism 1000 is advantageous to.Or bushing 551 can also be steel bushing, and alternatively, bushing
Signal bronze layer is provided with 551 inner peripheral surface, anti-wear performance is good.
According to the engine of the utility model another aspect embodiment, including above-mentioned valve actuating mechanism 1000, further,
Valve actuating mechanism 1000 includes the bushing 551 of above-described embodiment.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in
Protection domain within.
Claims (11)
- A kind of 1. bushing (551), it is characterised in that including：Bush body (552)；Bushing oil groove (553), the bushing oil groove (553) are arranged on the inner surface of the bush body (552), the bushing Oil groove (553) includes：The oil groove of bushing first (554) and the oil groove of bushing second (555), the oil groove of bushing first (554) have Bushing the first oil groove inner joint (5541) and bushing the first oil groove external tapping (5542), the first oil groove of bushing external tapping (5542) extend to one of end of the bush body (552), the first oil groove of bushing inner joint (5541) with The oil groove of bushing second (555) connection, circumferentially extending of the oil groove of bushing second (555) along the bush body (552).
- 2. bushing (551) according to claim 1, it is characterised in that the oil groove of bushing second (555) is circular arc, The oil groove of bushing first (554) is vertical with the oil groove of bushing second (555).
- 3. bushing (551) according to claim 2, it is characterised in that the oil groove of bushing first (554) is connected to described The minimum point of the oil groove of bushing second (555).
- 4. bushing (551) according to claim 1, it is characterised in that the oil groove of bushing first (554) is along the bushing The axial linear extension of body (552).
- 5. bushing (551) according to claim 1, it is characterised in that the center of circle corresponding to the oil groove of bushing second (555) Angle is more than 180 ° and no more than 360 °.
- 6. bushing (551) according to claim 5, it is characterised in that the center of circle corresponding to the oil groove of bushing second (555) Angle is 250 ° -290 °.
- 7. bushing (551) according to claim 1, it is characterised in that the oil groove of bushing second (555) and the bushing Another end surfaces of body (552) are opened.
- 8. bushing (551) according to claim 7, it is characterised in that the oil groove of bushing second (555) and the bushing The distance of another end face of body (552) is less than the described of the oil groove of bushing second (555) and the bush body (552) The distance of one of end face.
- 9. bushing (551) according to claim 1, it is characterised in that the depth of the bushing oil groove (553) is 0.3mm- 0.7mm, and width is 1-3mm.
- 10. bushing (551) according to claim 1, it is characterised in that the bushing (551) is steel bushing, and described The inner peripheral surface of bushing is provided with signal bronze layer.
- 11. a kind of engine, it is characterised in that including valve actuating mechanism, the valve actuating mechanism is included according in claim 1-10 Bushing (551) described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720671748.3U CN206889042U (en) | 2017-06-09 | 2017-06-09 | Bushing and the engine with the bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720671748.3U CN206889042U (en) | 2017-06-09 | 2017-06-09 | Bushing and the engine with the bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206889042U true CN206889042U (en) | 2018-01-16 |
Family
ID=61318237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720671748.3U Active CN206889042U (en) | 2017-06-09 | 2017-06-09 | Bushing and the engine with the bushing |
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| Country | Link |
|---|---|
| CN (1) | CN206889042U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109958536A (en) * | 2018-11-22 | 2019-07-02 | 中国航发贵州红林航空动力控制科技有限公司 | A kind of method and valve assembly improving hydraulic valve assembly flexibility |
-
2017
- 2017-06-09 CN CN201720671748.3U patent/CN206889042U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109958536A (en) * | 2018-11-22 | 2019-07-02 | 中国航发贵州红林航空动力控制科技有限公司 | A kind of method and valve assembly improving hydraulic valve assembly flexibility |
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