CN206889047U - Roller assembly and the engine with the roller assembly - Google Patents
Roller assembly and the engine with the roller assembly Download PDFInfo
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- CN206889047U CN206889047U CN201720671794.3U CN201720671794U CN206889047U CN 206889047 U CN206889047 U CN 206889047U CN 201720671794 U CN201720671794 U CN 201720671794U CN 206889047 U CN206889047 U CN 206889047U
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- outer ring
- mandrel
- roller assembly
- axial
- oil storage
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Abstract
The utility model discloses a kind of roller assembly and with the roller assembly engine.The roller assembly includes：Mandrel；Outer ring, the outer ring are set on the mandrel and multiple needle rollers around the mandrel are provided between the outer ring and the mandrel, and the needle roller make it that the relatively described mandrel in the outer ring is rotatable；Axial limiting portion, the axial limiting portion respectively positioned at the axial both ends of the outer ring to carry out axial limiting to the outer ring, the outside dimension in the axial limiting portion be less than the outside dimension of the outer ring so that the outer ring the mandrel the outer peripheral face for radially protruding the axial limiting portion.According to roller assembly of the present utility model, its is simple in construction, convenient for assembly, advantageously reduces manufacturing cost, and roller assembly of the present utility model can passing power, change valve stroke, also have the function that to reduce contact rub, hoisting mechanism performance.
Description
Technical field
The utility model is related to automotive field, in particular to a kind of roller assembly and with the roller assembly hair
Motivation.
Background technology
Also constantly shown with continuous ripe and development, the governor motion of lift range variable of lift range variable technology
Go out variation and simplify, the change of the component part of variable air valve lift range mechanism to valve stroke plays very important work
With.
For the governor motion of existing continuously variable valve lift, its part category is more, complicated, assembling
Difficulty is big, and processing cost is higher.
Utility model content
In view of this, the utility model is directed to a kind of roller assembly, simple in construction, advantageously reduces cost.
To reach above-mentioned purpose, what the technical solution of the utility model was realized in：
A kind of roller assembly includes：Mandrel；Outer ring, the outer ring is set on the mandrel and the outer ring and the core
Multiple needle rollers around the mandrel are provided between axle, the needle roller make it that the relatively described mandrel in the outer ring is rotatable；Axle
To limiting section, the axial limiting portion is respectively positioned at the axial both ends of the outer ring with to outer ring progress axial limiting, institute
The outside dimension for stating axial limiting portion is less than the outside dimension of the outer ring so that the outer ring radially dashing forward in the mandrel
Go out the outer peripheral face in the axial limiting portion, and expose the part in the axial limiting portion in two axial ends of the outer ring
It is configured to axial thrust face.
According to some embodiments of the utility model, the axial limiting portion is annular retaining ring.
Specifically, the annular retaining ring is fixed on the outer peripheral face of the mandrel, the mandrel, the outer ring and the annular
The central axis of back-up ring three overlaps.
Alternatively, the axial outer end face of each back-up ring is concordant with the axial outer end face of same one end of the mandrel.
Specifically, the internal diameter size of the outer ring is smaller than the outside dimension of the annular retaining ring.
According to some embodiments of the utility model, oil storage tank, the oil storage tank are provided with the outer peripheral face of the mandrel
For providing lubricating oil to the needle roller.
Alternatively, the oil storage tank is annular oil storage tank, and the part of the needle roller is located in the oil storage tank and another
A part stretches out the oil storage tank.
Alternatively, the oil storage tank is annular oil storage tank, and the needle roller is integrally accommodated in the oil storage tank, the rolling
The deep equality of the diameter of pin and the oil storage tank.
Further, the axial length of the oil storage tank is slightly larger than the axial length of the needle roller.
According to some embodiments of the utility model, two axial ends of the needle roller and two axial directions of the outer ring
End face difference is concordant.
Relative to prior art, roller assembly described in the utility model has the advantage that：
According to roller assembly described in the utility model, its is simple in construction, convenient for assembly, advantageously reduces manufacturing cost,
And roller assembly of the present utility model can passing power, change valve stroke, also have reduce contact friction, hoisting mechanism
The effect of performance.
Second purpose of the present utility model be to propose a kind of engine, and the engine includes valve actuating mechanism, described
Valve actuating mechanism includes above-mentioned roller assembly.
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 overall schematic of valve actuating mechanism；
Fig. 2 is the Principles of Regulation schematic diagram of valve stroke；
Fig. 3 is roller assembly, middle swing arm, the position view of cam；
Fig. 4 is the schematic diagram of roller assembly；
Fig. 5 is first embodiment schematic diagram of oil storage tank；
Fig. 6 is second embodiment schematic diagram of oil storage tank；
Fig. 7 is the 3rd embodiment schematic diagram of oil storage tank.
Description of reference numerals：
Valve actuating mechanism 1000, camshaft 101, cam 102, valve 103, valve rocker 104, valve roller 105, middle pendulum
Arm 106, fulcrum bearing 107, fixed support 108, elasticity reset device 109, lift adjustment axis 110, motor 111, set of rollers
Part 112, lift regulation eccentric wheel 113, middle arm shaft 114, middle swing arm roller 115；
Mandrel 501, outer ring 502, axial limiting portion 503, needle roller 504, axial thrust face 505, oil storage tank 506.
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 1- accompanying drawings 2 with reference to the accompanying drawings.
Valve actuating mechanism can include valve 103, middle swing arm 106, valve lift adjustment mechanism (lift adjustment axis 110, liter
Journey adjusts eccentric wheel 113 and motor 111), camshaft 101 etc..The valve actuating mechanism 1000 can be used for controlling inlet valve
Open and close.
Shown in reference picture 1, the top of valve 103 is provided with valve rocker 104, on valve rocker 104 rotatably arranged with
There is valve roller 105.Valve 103 can be moved up and down along valve center line to open or close the air inlet in cylinder head.In
Between swing arm 106 be arranged between valve 103 and camshaft 101, the bottom of middle swing arm 106 has driving face, driving face
It is bonded with valve roller 105.
The middle part of middle swing arm 106 has middle swing arm roller 115, and the top of middle swing arm 106 is equipped with middle pendulum
Arm axle 114, middle arm shaft 114 are fixed in fixed support 108, and middle arm shaft 114 can be matched somebody with somebody with fixed support 108 with interference
Close, or be relatively fixed the front and rear regulation of support 108 (perpendicular to the direction of camshaft 101).
With reference to shown in Fig. 2, there is cam 102, cam 102, lift regulation eccentric wheel 113 and middle pendulum on camshaft 101
The three of arm roller 115 shares positioning roller component 112.
Fulcrum bearing 107 is fixed on cylinder cap, and fixed support 108 is fixed in fulcrum bearing 107, and fixed support 108 is also used
In fixed elasticity reset device 109, elasticity reset device 109 is used to provide elastic reset power to middle swing arm 106, convex to cause
Wheel 102, lift regulation eccentric wheel 113 and the middle three of swing arm roller 115 are bonded contact always.
Valve lift adjustment mechanism includes lift adjustment axis 110, lift regulation eccentric wheel 113 and motor 111, valve
Lift adjustment mechanism is used for contact position of the driving face in bottom with valve roller 105 for adjusting middle swing arm 106.
When valve actuating mechanism 1000 works, cam 102 rotates with camshaft 101, and cam 102 periodically drives middle put
Arm 106 is swung around middle arm shaft 114, the driving face driving valve roller 105 of the middle bottom of swing arm 106 so that valve
103 move downward along valve center line, so as to open the air inlet in cylinder head, realize air inlet.Wherein, valve 103 can pass through
Valve spring is resetted, and middle swing arm 106 can be resetted by elasticity reset device 109.
When needing to adjust valve stroke change, motor 111 drives lift adjustment axis 110 clockwise or counter-clockwise
Rotate, thus lift adjustment axis 110 drives lift regulation eccentric wheel 113 to rotate, because lift adjusts the relative lift of eccentric wheel 113
Adjustment axis 110 is eccentric, therefore lift regulation eccentric wheel 113 drives middle swing arm 106 around middle swing arm by roller assembly 112
The axis small angle oscillation of axle 114, so as to change the contact position in the driving face of middle swing arm 106 and valve roller 105, enter
And continuously variably adjust valve lift amount.
Describe roller assembly 112 of the present utility model in detail below with reference to Fig. 1-Fig. 7 and in conjunction with the embodiments.
Shown in reference picture 4- Fig. 7, mandrel 501, outer ring can be included according to the roller assembly 112 of the utility model embodiment
502nd, axial limiting portion 503.
Outer ring 502 is set on mandrel 501, and is provided between outer ring 502 and mandrel 501 around the more of mandrel 501
Individual needle roller 504, needle roller 504 make it that outer ring 502 is rotatable with respect to mandrel 501, and specifically, outer ring 502 and needle roller 504 can be with
Central axis around mandrel 501 moves in a circle, by setting needle roller 504 so that outer ring 502 relative to mandrel 501 rotation
It is more steady, smooth.
Axial limiting portion 503 is set on mandrel 501 and fixed with mandrel 501, and further, axial limiting portion 503 divides
Not Wei Yu outer ring 502 axial both ends, in order to outer ring 502 carry out axial limiting, specifically with reference to Fig. 3, left side axial limiting
Portion 503 is arranged on the left side of outer ring 502, and right side axial direction limiting section 503 is arranged on the right side of outer ring 502, and outer ring 502 is folded in two
Between individual axial limiting portion 503.
Further, the outside dimension in axial limiting portion 503 is less than the outside dimension of outer ring 502, it is possible thereby to make outer ring
502 radially protrude the outer peripheral face in axial limiting portion 503 in mandrel 501, and expose in two axial ends of outer ring 502
The part in axial limiting portion 503 is configured to axial thrust face 505.Axial thrust face 505 can be located at corresponding two in Fig. 2
Between lift regulation eccentric wheel 113, by two lift regulation eccentric wheel 113 sandwiched positioning, axial thrust, roller assembly is prevented
112 occur axial float, so as to prevent roller assembly 112 from flying off.Meanwhile axial limiting portion 503 can adjust eccentric wheel with lift
113 contacts, outer ring 502 then contacts with middle swing arm roller 115 and cam 102 respectively.
The structure of roller assembly 112 is simple, easy to assembly, and mandrel 501, outer ring 502, axial limiting portion 503 are revolution
Body, processing uniformity is good, precision is easy to ensure, and processing cost is relatively low.
Shown in reference picture 3, cam 102 follows camshaft 101 to rotate, and lift regulation eccentric wheel 113 follows lift adjustment axis
110 rotate, and cam 102, lift regulation eccentric wheel 113 and the middle three of swing arm roller 115 share roller assembly 112, set of rollers
Part 112 can play a part of passing power, change valve stroke.
With reference to Fig. 2 specifically, when cam 102 rotates, molded line course bearing fortune of the roller assembly 112 along cam 102
Move, and power is transferred to the middle swing arm roller 115 in middle swing arm 106 so that middle swing arm 106 is around middle arm shaft
114 swing, now among the driving face of swing arm 106 bottom contacted with valve roller 105 so that valve 103 is along valve
Center line moves up and down, and to open or close the air inlet in cylinder head, molded line track of the roller assembly 112 along cam 102 is past
Multiple motion, it is possible to achieve the periodicity opening and closing of valve 103.When lift regulation eccentric wheel 113 rotate when, middle swing arm 106 still around
Middle arm shaft 114 is swung, and can now be changed the initial contact location of valve roller 105 and driving face, be changed so as to reach
The effect of air valve variation lift.It follows that roller assembly 112 being capable of passing power, change valve stroke.
In the course of work of roller assembly 112, outer ring 502 is suitable to roll and connect with cam 102, middle swing arm roller 115
Touch, axial limiting portion 503 is suitable to contact with lift regulation eccentric wheel 113, is specifically understood with reference to Fig. 2, and every group of lift regulation is eccentric
Wheel 113 is two panels and middle formation groove, and outer ring 502 is suitable to be connected in the groove of every group of lift regulation eccentric wheel 113, thus
Realize the axially position of roller assembly 112.Roller assembly 112 is advantageous to reduce the friction between contact parts, hoisting mechanism
Performance.
In addition, in motion process, roller assembly 112 rolls with cam 102, lift regulation eccentric wheel 113 and middle swing arm
Son 115 is brought into close contact, so as to effectively reduce noise pollution.
According to the roller assembly 112 of the utility model embodiment, its is simple in construction, convenient for assembly, advantageously reduces manufacture
Cost, and roller assembly of the present utility model 112 can passing power, change valve stroke, also have reduce contact friction,
The effect of hoisting mechanism performance.
In some embodiments of the utility model, as Figure 4-Figure 7, axial limiting portion 503 is annular retaining ring.
Specifically, annular retaining ring is fixed on the outer peripheral face of mandrel 501, can be interference between annular retaining ring and mandrel 501
Coordinate, to ensure the fixation of the two relative position.The central axis of mandrel 501, outer ring 502 and annular retaining ring three overlaps.
Alternatively, the axial outer end face of each back-up ring is concordant with the axial outer end face of same one end of mandrel 501.It is specific to combine
Fig. 3 understands that the axial outer end face (i.e. left side) and the axial outer end face of the left end of mandrel 501 of left side axial direction limiting section 503 are put down
Together.The axial outer end face (i.e. right side) of right side axial direction limiting section 503 is concordant with the axial outer end face of the right-hand member of mandrel 501.
Specifically, the internal diameter size of outer ring 502 is smaller than the outside dimension of annular retaining ring, and thus, outer ring 502 will not be from annular
Depart between back-up ring, so as to ensure that annular retaining ring is acted on the axial limiting of outer ring 502.
In some optional embodiments of the present utility model, as shown in Figure 5-Figure 7, set on the outer peripheral face of mandrel 501
There is oil storage tank 506, oil storage tank 506 is used to provide lubricating oil to needle roller 504, it is possible thereby to be further ensured that outer ring 502 is relative
The stationarity and smoothness rotated in mandrel 501.
Shown in reference picture 5, in one embodiment of the present utility model, oil storage tank 506 is annular oil storage tank 506, rolling
A part for pin 504 is located in oil storage tank 506 directly to be contacted with lubricating oil, and another part of needle roller 504 stretches out oil storage tank
506.Under working condition, needle roller 504 rotates, and a part of lubricating oil can be brought between outer ring 502 and needle roller 504, so as to enter
One step reduces the friction between outer ring 502 and needle roller 504, is advantageous to extend the service life of roller assembly 112.
Shown in reference picture 6, in second embodiment of the present utility model, oil storage tank 506 is annular oil storage tank 506,
Needle roller 504 is overall to be accommodated in oil storage tank 506, the diameter of needle roller 504 and the deep equality of oil storage tank 506, lubricating oil parcel
Needle roller 504, lubricant effect is more preferable.
Further, the axial length of oil storage tank 506 can be slightly larger than the axial length of needle roller 504, such as Fig. 5, Fig. 6 institute
Show, so, oil storage tank 506 can play certain position-limiting action to needle roller 504.
Shown in reference picture 7, in the 3rd embodiment of the present utility model, oil storage tank 506 is annular oil storage tank 506,
Needle roller 504 is integrally provided in outside oil storage tank 506, and the length of needle roller 504 is more than the length of oil storage tank 506.The inner surface of needle roller 504
Contact with lubricating oil, by the rotation of needle roller 504, a part of lubricating oil is brought between outer ring 502 and needle roller 504, it is real
Now lubricate.
In some embodiments of the utility model, two axial ends of needle roller 504 and two axial ends of outer ring 502
Face difference is concordant.
According to the engine of the utility model second aspect embodiment, including above-mentioned valve actuating mechanism 1000, further,
Valve actuating mechanism 1000 includes the roller assembly 112 of above-described embodiment.
Preferred embodiment is the foregoing is only, it is all in essence of the present utility model not to limit the utility model
God and principle within, any modification, equivalent substitution and improvements made etc., should be included in the scope of protection of the utility model it
It is interior.
Claims (11)
- A kind of 1. roller assembly (112), it is characterised in that including：Mandrel (501)；Outer ring (502), the outer ring (502) is set on the mandrel (501) and the outer ring (502) and the mandrel (501) multiple needle rollers (504) around the mandrel (501) are provided between, the needle roller (504) causes the outer ring (502) relatively described mandrel (501) is rotatable；Axial limiting portion (503), the axial limiting portion (503) is respectively positioned at the axial both ends of the outer ring (502) with to institute State outer ring (502) and carry out axial limiting, the outside dimension of the axial limiting portion (503) is less than the external diameter of the outer ring (502) Size so that the outer ring (502) the mandrel (501) radially protrude the axial limiting portion (503) outer peripheral face.
- 2. roller assembly (112) according to claim 1, it is characterised in that the axial limiting portion (503) is kept off for annular Circle.
- 3. roller assembly (112) according to claim 2, it is characterised in that the annular retaining ring is fixed on the mandrel (501) outer peripheral face, the central axis of the mandrel (501), the outer ring (502) and the annular retaining ring three overlap.
- 4. roller assembly (112) according to claim 2, it is characterised in that the axial outer end face of each back-up ring with The axial outer end face of same one end of the mandrel (501) is concordant.
- 5. roller assembly (112) according to claim 2, it is characterised in that the internal diameter size of the outer ring (502) compares institute The outside dimension for stating annular retaining ring is small.
- 6. roller assembly (112) according to claim 1, it is characterised in that set on the outer peripheral face of the mandrel (501) There is oil storage tank (506), the oil storage tank (506) is used to provide lubricating oil to the needle roller (504).
- 7. roller assembly (112) according to claim 6, it is characterised in that the oil storage tank (506) is annular oil storage Groove (506), a part for the needle roller (504) is located in the oil storage tank (506) and another part stretches out the oil storage tank (506)。
- 8. roller assembly (112) according to claim 6, it is characterised in that the oil storage tank (506) is annular oil storage Groove (506), the needle roller (504) are integrally accommodated in the oil storage tank (506), diameter and the storage of the needle roller (504) The deep equality of oil groove (506).
- 9. the roller assembly (112) according to claim 6 or 7, it is characterised in that the axial direction of the oil storage tank (506) is long Axial length of the degree slightly larger than the needle roller (504).
- 10. roller assembly (112) according to claim 1, it is characterised in that two axial ends of the needle roller (504) Face is concordant with two axial end difference of the outer ring (502).
- 11. a kind of engine, it is characterised in that including valve actuating mechanism (1000), the valve actuating mechanism (1000) is included according to power Profit requires the roller assembly (112) any one of 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720671794.3U CN206889047U (en) | 2017-06-09 | 2017-06-09 | Roller assembly and the engine with the roller assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720671794.3U CN206889047U (en) | 2017-06-09 | 2017-06-09 | Roller assembly and the engine with the roller assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206889047U true CN206889047U (en) | 2018-01-16 |
Family
ID=61318232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720671794.3U Active CN206889047U (en) | 2017-06-09 | 2017-06-09 | Roller assembly and the engine with the roller assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206889047U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018224017A1 (en) * | 2017-06-09 | 2018-12-13 | 长城汽车股份有限公司 | Valve mechanism, engine, and vehicle |
-
2017
- 2017-06-09 CN CN201720671794.3U patent/CN206889047U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018224017A1 (en) * | 2017-06-09 | 2018-12-13 | 长城汽车股份有限公司 | Valve mechanism, engine, and vehicle |
| US11448105B2 (en) | 2017-06-09 | 2022-09-20 | Great Wall Motor Company Limited | Valve mechanism, engine and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191230 Address after: 212200 No. 868, Hong Xing Road, Yangzhong Economic Development Zone, Zhenjiang, Jiangsu Patentee after: Honeycomb power system (Jiangsu) Co., Ltd Address before: 071000 No. 2266 Chaoyang South Street, Hebei, Baoding Patentee before: Changcheng Automobile Co., Ltd. |
|
| TR01 | Transfer of patent right |