CN109707474A - Camshaft thrust device and engine - Google Patents
Camshaft thrust device and engine Download PDFInfo
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- CN109707474A CN109707474A CN201811597873.XA CN201811597873A CN109707474A CN 109707474 A CN109707474 A CN 109707474A CN 201811597873 A CN201811597873 A CN 201811597873A CN 109707474 A CN109707474 A CN 109707474A
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- camshaft
- thrust
- thrust plate
- arc
- holder
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Abstract
The invention discloses a kind of camshaft thrust device and engines, wherein camshaft thrust device includes camshaft holder and the first thrust plate and the second thrust plate for being arranged in camshaft holder opposite sides, and the first thrust plate and the second thrust plate are detachably connected with camshaft holder.Since the first thrust plate and the second thrust plate are vulnerable part, it is detachably connected by the first thrust plate and the second thrust plate with camshaft holder, after the first thrust plate or the second thrust pad wear, directly replace corresponding construction, avoid the case where replacing entire camshaft thrust device, therefore, the application provides camshaft thrust device and significantly reduces the maintenance cost of engine.
Description
Technical field
The present invention relates to camshaft axial limiting technical field, in particular to a kind of camshaft thrust device.The present invention is also
It is related to a kind of engine including above-mentioned camshaft thrust device.
Background technique
Camshaft is the important feature of engine, and rocker arm valve mechanism is driven to provide fresh air for engine.Cam
Axis is mounted in the body hole of engine, and drive bevel gear drives the follow bevel gear for being mounted on cam shaft end head, makes camshaft
It runs at high speed.
Camshaft makes convex under axial thrust effect during operation, by the axial thrust from drive bevel gear
Radial clearance increases between wheel shaft and bearing, and camshaft deviates home position, this makes camshaft driven tooth turbine along axial motion
Tool load increases, and aggravates the abrasion of camshaft and bearing components, generates vibration noise, will lead to gear when serious and is detached from transmission
System causes engine damage, it is therefore necessary to arrange camshaft thrust device on the engine, the axial direction for limiting camshaft is altered
It is dynamic.
Traditional camshaft thrust device include camshaft holder and with the integrally formed thrust structure of camshaft holder, camshaft
The opposite sides of seat is equipped with the thrust thrust structure with camshaft cooperation, for limiting camshaft axial motion.
However, engine is at work, it is easy to generate friction with thrust mechanism during cam axle, thrust structure holds
It is easy to damage, it needs to regularly replace thrust structure, since thrust structure and camshaft holder are an integral structure, need entire cam
The replacement of axis thrust brake, causes the maintenance cost of engine higher.
Therefore, the maintenance cost for how reducing engine is those skilled in the art's technical problem urgently to be resolved.
Summary of the invention
The object of the present invention is to provide a kind of camshaft thrust devices, to reduce the maintenance cost of engine.Of the invention
Another object is to provide a kind of engine including above-mentioned camshaft thrust device.
To achieve the above object, the present invention provides a kind of camshaft thrust device, including camshaft holder and is arranged in described
The first thrust plate and the second thrust plate of camshaft holder opposite sides, the first thrust plate and the second thrust plate with the camshaft
Seat is detachably connected.
Preferably, the camshaft holder is equipped with the limit for installing first thrust plate and second thrust plate
Slot.
Preferably, first thrust plate is identical with the second thrust chip architecture.
Preferably, the camshaft holder is split type structure.
Preferably, the camshaft holder be include camshaft upper cover and be located at the camshaft upper cover below camshaft
Lower seat, the camshaft upper cover are detachably connected with seat under the camshaft, and the limiting slot is located under the camshaft on seat.
Preferably, first thrust plate and/or second thrust plate are arc thrust plate, the arc thrust plate packet
It includes along the arc-shaped limit portion that the camshaft is circumferentially arranged, the lateral surface in the arc-shaped limit portion is abutted with the camshaft.
Preferably, the camshaft is equipped with and abuts with first thrust plate and second thrust plate, and for limiting
The shaft shoulder and baffle of the position camshaft axial movement.
Preferably, the arc thrust plate further includes the dismounting portion for being connected to arc-shaped limit portion end, the arc
Thrust plate is elastic sheet metal, and the position on the limiting slot for accommodating the dismounting portion is to connect on the outside of the camshaft holder
Logical open end, the open end are dismounted for the arc thrust plate.
Preferably, first thrust plate and/or the second thrust plate through-thickness include steel structural layer and described
The alloy structure layer that steel structural layer is fixedly connected.
A kind of engine, the camshaft thrust device including camshaft and with camshaft cooperation, the camshaft stop
Pushing device is camshaft thrust device described in any of the above embodiments.
In the above-mentioned technical solutions, camshaft thrust device provided by the invention includes camshaft holder and is arranged in described convex
The first thrust plate and the second thrust plate of axle block opposite sides, the first thrust plate and the second thrust plate with the camshaft holder
It is detachably connected.
As can be seen from the above description, in camshaft thrust device provided by the present application, due to the first thrust plate and second
Thrust plate is vulnerable part, is detachably connected by the first thrust plate and the second thrust plate with the camshaft holder, is stopped when first
After push jack or the second thrust pad wear, corresponding construction is directly replaced, avoids the feelings for replacing entire camshaft thrust device
Condition, therefore, the application provide camshaft thrust device and significantly reduce the maintenance cost of engine.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the installation site figure of camshaft thrust device provided by the embodiment of the present invention；
Fig. 2 is the exploded view of camshaft thrust device provided by the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of seat under camshaft provided by the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of camshaft upper cover provided by the embodiment of the present invention；
Fig. 5 is the structural schematic diagram of camshaft thrust device provided by the embodiment of the present invention；
Fig. 6 is the structural schematic diagram of the first thrust plate provided by the embodiment of the present invention；
Fig. 7 is the installation site figure of the first thrust plate provided by the embodiment of the present invention；
Fig. 8 is the installation site figure of the second thrust plate provided by the embodiment of the present invention；
Fig. 9 is the top view of camshaft thrust device provided by the embodiment of the present invention.
Wherein in Fig. 1-9, seat under the 1- shaft shoulder, the first thrust plate of 2-, 3- camshaft holder, 31- camshaft, on 32- camshaft
Lid, 33- lower ending opening, 34- upper end opening, the open end 35-, 4- helical gear, the second thrust plate of 5-, 6- limiting slot, 7- drain pan,
8- baffle, 9- camshaft-bearing cap.
Specific embodiment
Core of the invention is to provide a kind of camshaft thrust device, to reduce the maintenance cost of engine.Of the invention
Another core is to provide a kind of engine including above-mentioned camshaft thrust device.
In order to make those skilled in the art more fully understand technical solution of the present invention, with reference to the accompanying drawing and embodiment party
The present invention is described in further detail for formula.
Fig. 1 to Fig. 9 is please referred to, in a specific embodiment, the camshaft thrust that the specific embodiment of the invention provides
Device includes camshaft holder 3 and the first thrust plate 2 and the second thrust plate 5 for being arranged in 3 opposite sides of camshaft holder, the first thrust
Piece 2 and the second thrust plate 5 are detachably connected with camshaft holder 3, specifically, the first thrust plate 2 and the second thrust plate 5 pass through
Threaded fastener is mounted on camshaft holder 3.For the ease of assembling camshaft thrust device, it is preferable that camshaft holder 3, which is equipped with, to be used
In the limiting slot 6 of installation the first thrust plate 2 and the second thrust plate 5, when assembling camshaft thrust device, directly by the first thrust
Piece 2 and the second thrust plate 5 are placed on corresponding limiting slot 6.
In order to extend the service life of the first thrust plate 2 and/or the second thrust plate 5, it is preferable that the first thrust plate 2 and/or
Two thrust plates 5 are equipped with drain pan 7, and wherein drain pan 7 is along perpendicular to camshaft axis directional spreding, it is preferable that drain pan 7 is straight
Bar slot, the number and size of drain pan 7 are decided according to the actual requirements, and the application is not specifically limited, in order to avoid stress collection
In, it is preferable that drain pan 7 is arc drain pan.
Preferably, the first thrust plate 2 is identical with 5 structure of the second thrust plate, due to the first thrust plate 2 and the second thrust plate 5
Structure is identical, avoids the first thrust plate 2 and the second thrust plate 5 wrongly installed the case where can not effectively using, while improving camshaft
The packaging efficiency of thrust brake.
For the ease of the axial movement of limit convex wheel shaft, it is preferable that camshaft is equipped with and the first thrust plate 2 and the second thrust plate
5 abut, and the shaft shoulder 1 and baffle 8 for the axial movement of limit convex wheel shaft, and certainly, for the ease of assembling, baffle 8 is camshaft
Gear stop shoulder, wherein the side of the first thrust plate 2 is abutted with the camshaft holder 3, the other side is abutted with the shaft shoulder 1.Second stops
The side of push jack 5 is abutted with camshaft holder 3, and the other side is abutted with baffle 8, baffle 8 with can be fixedly connected with camshaft, or with
The body shell of engine connects, specifically, baffle 8 can be replaced by the side wall of helical gear 4.
As can be seen from the above description, in the camshaft thrust device provided by the application specific embodiment, due to first
Thrust plate 2 and the second thrust plate 5 are vulnerable part, detachable by the first thrust plate 2 and the second thrust plate 5 and camshaft holder 3
Connection directly replaces corresponding construction, avoids stopping entire camshaft after the first thrust plate 2 or the abrasion of the second thrust plate 5
The case where pushing device is replaced, therefore, the application provide camshaft thrust device and significantly reduce the maintenance cost of engine.
For the ease of dismounting camshaft thrust device, it is preferable that camshaft holder 3 is split type structure, specifically, camshaft holder
3 can realize connection by threaded fastener.
Preferably, camshaft holder 3 be include camshaft upper cover 32 and be located under the camshaft of the lower section of camshaft upper cover 32
Seat 31, can wherein be equipped with camshaft-bearing cap 9 on camshaft holder 3.Specific camshaft is mounted on camshaft upper cover 32 and convex
In the cavity that seat 31 is formed under wheel shaft, camshaft upper cover 32 is detachably connected with seat 31 under camshaft, and limiting slot 6 is located at camshaft
On lower seat 31.By the way that the first thrust plate 2 and the second thrust plate 5 to be arranged under camshaft on seat 31, it is convenient for integral installation.
In order to extend the service life of camshaft thrust device, it is preferable that the first thrust plate 2 and/or the second thrust plate 5 are arc
Shape thrust plate, arc thrust plate include the arc-shaped limit portion being circumferentially arranged along camshaft, the lateral surface and cam in arc-shaped limit portion
Axis abuts.It is preferred that arc thrust plate is semi-circular shape plate structure.By the way that the first thrust plate 2 and/or the second thrust plate 5 are set
It is set to arc thrust plate, effectively increases the contact area of the first thrust plate 2 and/or the second thrust plate 5 and camshaft, in turn
The service life of the first thrust plate 2 and/or the second thrust plate 5 is extended, reduces by the first thrust plate 2 and/or the second thrust plate 5 is
Replacement frequency improves the working efficiency of engine.
Preferably, arc thrust plate further includes the dismounting portion for being connected to arc-shaped limit portion end, is used to accommodate on limiting slot 6
The position in dismounting portion be with the open end 35 that is connected on the outside of camshaft holder 3, open end 35 is for the dismounting of arc thrust plate, wherein
Buckle end 35 can be formed by the upper end opening 34 on the lower ending opening 33 and camshaft upper cover 32 under camshaft on seat 31, preferably
, arc thrust plate is an integral molding structure, and arc thrust plate is elastic sheet metal.When needing replacing arc thrust plate, make
User pulls out dismounting portion, and then arc-shaped limit portion is driven to remove, and does not need camshaft holder 3 to be dismounted, and thereby reduces the
The replacement difficulty of one thrust plate 2 and/or the second thrust plate 5.
It is excellent in order to extend the service life of the first thrust plate 2 and/or the second thrust plate 5 on the basis of above-mentioned each scheme
Choosing, the first thrust plate 2 and/or 5 through-thickness of the second thrust plate include the alloy that steel structural layer and steel structural layer are fixedly connected
Structure sheaf.
A kind of engine provided by the present application includes camshaft and the camshaft thrust device with camshaft cooperation, wherein
Camshaft thrust device is any of the above-described kind of camshaft thrust device.The structure feature of cam thrust brake is wherein described above
And technical effect, this engine provided by the present application includes that above-mentioned cam thrust brake equally has above-mentioned technique effect, herein
It is not repeating.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of camshaft thrust device, which is characterized in that including camshaft holder (3) and be arranged in the camshaft holder (3) phase
To the first thrust plate (2) and the second thrust plate (5) of two sides, first thrust plate (2) and second thrust plate (5) with
The camshaft holder (3) is detachably connected.
2. camshaft thrust device according to claim 1, which is characterized in that the camshaft holder (3) is equipped with and is used for
The limiting slot (6) of first thrust plate (2) and second thrust plate (5) is installed.
3. camshaft thrust device according to claim 2, which is characterized in that first thrust plate (2) and described
Two thrust plates (5) structure is identical.
4. camshaft thrust device according to claim 2, which is characterized in that the camshaft holder (3) is dissection type knot
Structure.
5. camshaft thrust device according to claim 4, which is characterized in that the camshaft holder (3) be include cam
Axis upper cover (32) and be located at the camshaft upper cover (32) below camshaft under seat (31), the camshaft upper cover (32) with
Seat (31) is detachably connected under the camshaft, and the limiting slot (6) is located under the camshaft on seat (31).
6. camshaft thrust device according to claim 5, which is characterized in that first thrust plate (2) and/or described
Second thrust plate (5) is arc thrust plate, and the arc thrust plate includes the arc-shaped limit portion being circumferentially arranged along camshaft, described
The lateral surface in arc-shaped limit portion is abutted with the camshaft.
7. camshaft thrust device according to claim 6, which is characterized in that the camshaft is equipped with and described first
Thrust plate (2) and second thrust plate (5) abut, and the shaft shoulder (1) and baffle for limiting the camshaft axial movement
(8)。
8. camshaft thrust device according to claim 6, which is characterized in that the arc thrust plate further includes being connected to
The dismounting portion of arc-shaped limit portion end, the arc thrust plate are elastic sheet metal, are used to accommodate on the limiting slot (6)
The position in the dismounting portion is the open end (35) being connected to the camshaft holder (3) outside, and the open end (35) is used for institute
State the dismounting of arc thrust plate.
9. camshaft thrust device according to claim 1 to 8, which is characterized in that first thrust plate
(2) and/or second thrust plate (5) through-thickness includes alloy knot that steel structural layer and the steel structural layer are fixedly connected
Structure layer.
10. a kind of engine, the camshaft thrust device including camshaft and with camshaft cooperation, which is characterized in that institute
Stating camshaft thrust device is camshaft thrust device of any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811597873.XA CN109707474B (en) | 2018-12-26 | 2018-12-26 | Camshaft thrust device and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811597873.XA CN109707474B (en) | 2018-12-26 | 2018-12-26 | Camshaft thrust device and engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109707474A true CN109707474A (en) | 2019-05-03 |
| CN109707474B CN109707474B (en) | 2020-10-30 |
Family
ID=66257636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811597873.XA Active CN109707474B (en) | 2018-12-26 | 2018-12-26 | Camshaft thrust device and engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109707474B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11257124A (en) * | 1998-03-17 | 1999-09-21 | Suzuki Motor Corp | Thrust bearing structure of camshaft |
| JP2000097003A (en) * | 1998-09-22 | 2000-04-04 | Kubota Corp | Thrust stopper device for camshaft of valve system of overhead cam shaft type engine |
| CN201581944U (en) * | 2009-11-17 | 2010-09-15 | 浙江吉利汽车研究院有限公司 | Axial positioning structure of engine camshaft |
| CN202991824U (en) * | 2012-11-19 | 2013-06-12 | 上海汽车集团股份有限公司 | Thrust plate and engine cylinder body and engine |
| CN204186792U (en) * | 2013-10-15 | 2015-03-04 | 卡特彼勒公司 | There is the thrust plate of wearing layer |
| CN204419287U (en) * | 2015-02-03 | 2015-06-24 | 北京汽车动力总成有限公司 | A kind of thrust structure for camshaft of engine and automobile |
| CN204784220U (en) * | 2015-05-07 | 2015-11-18 | 潍柴动力股份有限公司 | Thrust bearing cap's location structure , engine |
| CN205638588U (en) * | 2016-04-23 | 2016-10-12 | 潍柴动力股份有限公司 | Camshaft thrust plane |
-
2018
- 2018-12-26 CN CN201811597873.XA patent/CN109707474B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11257124A (en) * | 1998-03-17 | 1999-09-21 | Suzuki Motor Corp | Thrust bearing structure of camshaft |
| JP2000097003A (en) * | 1998-09-22 | 2000-04-04 | Kubota Corp | Thrust stopper device for camshaft of valve system of overhead cam shaft type engine |
| CN201581944U (en) * | 2009-11-17 | 2010-09-15 | 浙江吉利汽车研究院有限公司 | Axial positioning structure of engine camshaft |
| CN202991824U (en) * | 2012-11-19 | 2013-06-12 | 上海汽车集团股份有限公司 | Thrust plate and engine cylinder body and engine |
| CN204186792U (en) * | 2013-10-15 | 2015-03-04 | 卡特彼勒公司 | There is the thrust plate of wearing layer |
| CN204419287U (en) * | 2015-02-03 | 2015-06-24 | 北京汽车动力总成有限公司 | A kind of thrust structure for camshaft of engine and automobile |
| CN204784220U (en) * | 2015-05-07 | 2015-11-18 | 潍柴动力股份有限公司 | Thrust bearing cap's location structure , engine |
| CN205638588U (en) * | 2016-04-23 | 2016-10-12 | 潍柴动力股份有限公司 | Camshaft thrust plane |
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| Publication number | Publication date |
|---|---|
| CN109707474B (en) | 2020-10-30 |
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