CN207437143U - Camshaft installs module and cam assembly - Google Patents
Camshaft installs module and cam assembly Download PDFInfo
- Publication number
- CN207437143U CN207437143U CN201721568880.8U CN201721568880U CN207437143U CN 207437143 U CN207437143 U CN 207437143U CN 201721568880 U CN201721568880 U CN 201721568880U CN 207437143 U CN207437143 U CN 207437143U
- Authority
- CN
- China
- Prior art keywords
- bearing
- camshaft
- bearing block
- locating piece
- cap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
- F01L2001/0476—Camshaft bearings
Abstract
The utility model provides a kind of camshaft installation module and cam assembly, belongs to technical field of automobile accessories.It solves available engine camshaft bearing hole machined and the technical problems such as is not easy.This camshaft installs module and cam assembly, including the bearing cap being used in camb cap, further include the bearing block being mounted in cylinder head, bearing cap on bearing block with being both provided with mounting groove, mounting groove is mutually butted the bearing hole to form fixing camshaft by bearing cap and bearing block, the first locating piece positioned with cylinder head is provided on bearing block, the second locating piece used for positioning is provided between bearing block and bearing cap, bearing block on bearing cap with being equipped with fixing piece.Each camshaft bearing bore modularization is processed, assembles by the utility model, can remove from and is directly processed on large-scale camb cap or cylinder head, camshaft bearing bore can be so processed on the machining tool of miniaturization.
Description
Technical field
The utility model belongs to auto parts field, is specifically a kind of camshaft installation module and cam assembly.
Background technology
Cam shaft bearing bore operates to camshaft in engine operation process and provides support, controls camshaft axial float
And the function of lubricating oil duct is provided to camshaft.Simultaneously to ensure that camshaft runs well during running at high speed, need
Camshaft hole is wanted to possess very high concentricity and circularity.If camshaft bearing bore goes wrong, camshaft holds very much in operation process
Easily because each shelves unbalance stress, and cause cam axle fracture, engine damage is serious to also result in traffic accident.
China's Patent Application Publication (notification number：CN105317489A；The day for announcing：2016.02.10) in disclose it is a kind of convex
Bearing construction of axle, bearing portion include cylinder head, camb cap, and camb cap is assembled in above cylinder head, on camb cap and cylinder head
Face is both provided with to limit the journal hole of camshaft location, and the two mutually fastens and then realizes the fixation to camshaft.
But camshaft hole processing needs high-precision process equipment, frock and dedicated tool, to production equipment, cutter
It is required that it is very high, and because different size of engine are different, process tool can not be shared, it is necessary to using dedicated tool.Above-mentioned technical side
In case, since journal hole is set directly on camb cap and cylinder head, camb cap and the structure of cylinder head entirety are larger, to convex
It needs whole part being placed in large-sized processing equipment during wheel shaft hole machined and process, and at machining cam axis hole position
When need to change special cutter, more complicated in process, production cost is higher.
The content of the invention
The utility model provides a kind of camshaft installation module and camshaft for the above problem existing for existing technology
Component, the technical purpose to be realized of the utility model：It is produced and processed convenient for the bearing hole to engine cam.
The purpose of this utility model can be realized by following technical proposal：
A kind of camshaft installs module, including the bearing cap being used in camb cap, which is characterized in that further include and be used for
Bearing block in cylinder head, is both provided with mounting groove on bearing cap and bearing block, the mounting groove by bearing cap with
Bearing block is mutually butted the bearing hole to form fixing camshaft, is provided with what is positioned with cylinder head on the bearing block
First locating piece, is provided with the second locating piece used for positioning between the bearing block and bearing cap, the installation module is also wrapped
Include the fixing piece for being useful for bearing block and bearing cap being fixed in cylinder head.
Each camshaft bearing bore modularization is processed, is assembled, can remove from directly in large-scale camb cap or
It is processed above cylinder head, can so carry out production to cam axle mount part on the machining tool of miniaturization and add
Then work can form to fix mounted on camb cap and cylinder head the bearing hole of camshaft.In order to ensure bearing hole exists
High-precision and high stability in technology requirement, the second locating piece between bearing block and bearing cap ensure that bearing block and bearing
The bearing hole that lid docking is formed precisely is bonded with camshaft outer wall, and it is not in dislocation afterwards that bearing block is docked with bearing cap
Phenomenon can remain high-precision state when bearing the vibration that camshaft passes over.First locating piece can ensure axis
Bearing is accurately arranged in cylinder head, and the distributing position that can allow camshaft is accurate, is less prone to deviation, and can be long when
Between be kept fixed, do not shift.Fixing piece provides fixed force, and then bearing block and bearing cap are secured firmly in cylinder head, ties
It closes the first locating piece and the second locating piece mutually to install and coordinates between module close, installation is stablized, and is had and bearing hole one
Body is arranged on cylinder head and same stability and installation accuracy on camb cap.Meanwhile it also allows for being criticized when processing
Quantify quick production, different bearing holes can be by bearing block and bearing cap respectively on different cutters and the station of machining accuracy
Batch machining is carried out, meets the diversified demand of engine.
On mounting structure, the first locating piece and the second positioning provide the accuracy installed, and the first locating piece causes bearing
Seat is accurately mounted in cylinder head, and the second locating piece makes bearing cap precisely be fixed on bearing block, it is ensured that the precision with camshaft
Cooperation.Meanwhile anchor structure provides fixed force in structure so that bearing block is protected with bearing cap and bearing block with cylinder head
It holds relatively, so entire module stable structure, accurate positioning in cylinder head play the role of camshaft bearing.
Module is installed in above-mentioned camshaft, the bearing block is with being both provided with the reinforcement toward both sides protrusion on bearing cap
The rib of both portion, the second locating piece connection bearing block and bearing cap, first locating piece are connected to bearing block
On rib, the fixing piece is located at through the position of bearing block and bearing cap in rib.Bearing block on bearing cap with strengthening
The structure in portion compares remaining portion structure intensity higher, thus by the first locating piece, the second locating piece, fixing piece installation position
The structural strength for being both provided with can ensureing link position on rib is put, ensure that whole stable structure in use
Property.
Module is installed in above-mentioned camshaft, the bearing block is two with the rib quantity on bearing cap, and point
Not Wei Yu mounting groove both sides, be respectively connected with fixing piece on each rib.There are the structure energy of rib and fixing piece in both sides
Enough to provide symmetrical support force for the intermediate fixed camshaft of mounting groove, entire module has support force to be evenly distributed, enough
Structural strength, stability it is high.
Module is installed in above-mentioned camshaft, first locating piece and the second locating piece are set pin sleeve, described to add
It is provided through hole in strong portion, the outer wall of both the first locating piece and second locating piece is fitted closely with through hole inner wall.It is logical
The fixing and matching structure of both ends set pin sleeve and through hole is crossed, can allow two components being fixed on same set pin sleeve can
Be mutually aligned, keep elaborate position, such bearing cap and bearing block relative position also keep more precisely, bearing hole can be with
Camshaft can accurately coincide.Simultaneously set pin sleeve can also penetrate into cylinder head so that bearing block and cylinder head keep compared with
For stable positioning, camshaft more can be fixed accurately.
Module is installed in above-mentioned camshaft, the fixing piece is fixing screws, and the fixing screws are axially through the
Positioning piece and the second locating piece, and the first locating piece and the outer wall of the equal fixing screws of inner wall of both the second locating pieces closely paste
It closes, fixing screws end and cylinder head thread fitting.Fixing screws can provide fixed force to be whole, and fixing screws are directly passed through
It wears the detent force that set pin sleeve can be set pin sleeve mutually to concentrate at one, improves the stability of detent force, and raising pair
Compact overall structure degree, the installation being convenient for people to.
A kind of cam assembly, including cylinder head and camshaft, which is characterized in that including multiple such as above-mentioned technical proposal institute
The camshaft installation module stated, the camshaft installation module are axially mounted to along camshaft in cylinder head.Multiple cams
Axis installation module collectively forms the bearing arrangement of camshaft, and the structure of multiple supporting points provides stable support force for camshaft,
And it can ensure the stability of cam axle.
Compared with prior art, the utility model has the following advantages：
1st, each camshaft installation module is low to production equipment requirement, processing is simple, at low cost.
2nd, camshaft installation module, it is compact-sized, reliability is high, pts wt is light, it can repeat to realize camshaft bearing bore
Function.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the present embodiment one.
Fig. 2 is the structure diagram of one explosive state of the present embodiment.
Fig. 3 is the dimensional structure diagram of two assembled state of the present embodiment.
In figure, 11, mounting groove；12nd, bearing hole；13rd, camshaft；21st, bearing cap；22nd, bearing block；23rd, rib；24、
Through hole；31st, the first locating piece；32nd, the second locating piece；33rd, fixing piece.
Specific embodiment
It is specific embodiment of the utility model and with reference to attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
Embodiment one
Such as Fig. 1, a kind of camshaft installs module, including the bearing cap 21 being used in camb cap and for being mounted on gas
Bearing block 22 on cylinder cap, bearing cap 21 can interfix with bearing block 22, the face that bearing cap 21 and bearing block 22 are bonded to each other
On be both provided with semicircular mounting groove 11, when bearing cap 21 and bearing block 22 are mutually butted fixed, two semicircles
Mounting groove 11 mutually coincide docking form bearing hole 12, bearing hole 12 is consistent with 13 outer wall shape of camshaft, can play profit
The effect of sliding supporting cam wheel axis 13.
11 both sides of mounting groove are respectively provided with that there are one the rib 23 protruded outward, ribs on bearing cap 21 and bearing block 22
23 is cylindrical and extend to bottom from bearing cap 21 or the top of bearing block 22.It is to be provided with coaxial pass through among rib 23
Perforation 24, about 23 both sides through rib for through hole 24, and bearing block 22 and the through hole 24 of bearing cap 21 are coaxially mutually butted.
As shown in Fig. 2, the second locating piece 32 is provided between the rib 23 of 21 the two of bearing block 22 and bearing cap,
Second locating piece 32 is set pin sleeve, and the upper semisection of the second locating piece 32 is inserted into the through hole 24 of bearing cap 21, and second is fixed
The lower semisection of position part 32 is inserted into the through hole 24 of bearing block 22, and 32 outer wall of the second locating piece is close to 24 inner wall of through hole.
Second locating piece 32 can ensure to be formed accurately 12 shape of bearing hole between bearing cap 21 and bearing block 22.
Be provided in the bottom of bearing block 22 for fixed first locating piece 31 of engine cylinder cap, the first locating piece
31 be also set pin sleeve, and 31 outer wall of the first locating piece and 24 inner wall of through hole of bearing block 22 fit closely, the first locating piece 31
End can be plugged into cylinder head the precise positioning formed in corresponding location hole to 13 position of camshaft.First locating piece 31 with
All it is the set pin sleeve of same specification used by second locating piece 32, so when processing, such process in processing
The aperture of same specification, the convenience that so processing is got up more may be employed in aperture inside middle rib 23.
It is equipped between the rib 23 being mutually butted between bearing block 22 and bearing cap 21 for fixed fixing piece
33, fixing piece 33 is fixing screws.For the nut of the fixing screws for ease of the hex nut turned, spiro rod length is longer, passes through
Wear the through hole 24 of bearing block 22 and bearing cap 21.Fixing screws are threaded through inside the first locating piece 31 and the second locating piece 32,
And fixing screws outer wall is fitted closely with the first locating piece 31 and 32 inner wall of the second locating piece.The screw rod end set of fixing screws
There is screw thread, which can be screwed into cylinder head and the module is integrally fixed.
When the module is produced, by bearing cap 21 and bearing block 22 respectively on lathe for machining it is separately machined out.
The bearing cap 21 of plurality of specifications and bearing block 22 can be processed when processing, when engine is assembled, Ke Yigen
Corresponding bearing cap 21 and bearing block 22 are selected according to 13 specific model of engine cam, it is then mounted in engine together
Cylinder head above.
It is quickly produced in this way, also allowing for progress mass when processing, different bearing holes can be by bearing block 22
Batch machining is carried out on different cutters and the station of machining accuracy respectively from bearing cap 21, meets the diversified need of engine
It asks, holistic cost is relatively low, compact-sized, reliability is high.
Embodiment two
A kind of camshaft installs module, and embodiment two is differed only in embodiment one, the first locating piece 31 and second
Locating piece 32 is shop bolt, and the first locating piece 31 connection bearing block 22 and cylinder head, the second locating piece 32 connect bearing block 22
With bearing cap 21.
Embodiment three
As shown in figure 3, a kind of cam assembly, including camshaft 13 and cylinder head, further includes multiple as in embodiment one
The camshaft installation module, camshaft installation module is distributed in along the trend of 13 axis of camshaft in cylinder head, multiple
Camshaft installation module forms the support construction common to camshaft 13, allows the energy under the accurate support construction of multiple spot of camshaft 13
Enough prolonged steady runnings.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Described specific embodiment can be done various modifications or additions or using similar by belonging to those skilled in the art
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Although 11, mounting groove is used more herein；12nd, bearing hole；13rd, camshaft；21st, bearing cap；22nd, bearing
Seat；23rd, rib；24th, through hole；31st, the first locating piece；32nd, the second locating piece；33rd, the terms such as fixing piece, but be not precluded from
Use the possibility of other terms.The use of these items is only for more easily describe and explain the sheet of the utility model
Matter；It is contrary to the spirit of the present invention to interpret them as any one of the additional limitations.
Claims (6)
1. a kind of camshaft installs module, including the bearing cap (21) being used in camb cap, which is characterized in that further include use
In the bearing block (22) in cylinder head, mounting groove (11) is both provided on bearing cap (21) and bearing block (22), it is described
Mounting groove (11) is mutually butted the bearing hole to form fixing camshaft (13) by bearing cap (21) and bearing block (22)
(12), be provided with the first locating piece (31) positioned with cylinder head on the bearing block (22), the bearing block (22) with
The second locating piece (32) used for positioning is provided between bearing cap (21), the installation module, which further includes, to be useful for bearing block
(22) fixing piece (33) being fixed on bearing cap (21) in cylinder head.
2. camshaft according to claim 1 installs module, which is characterized in that the bearing block (22) and bearing cap (21)
On be both provided with the rib (23) toward both sides protrusion, second locating piece (32) connection bearing block (22) and bearing cap (21)
The rib (23) of the two, first locating piece (31) are connected on the rib (23) of bearing block (22), the fixing piece
(33) it is located at through the position of bearing block (22) and bearing cap (21) in rib (23).
3. camshaft according to claim 2 installs module, which is characterized in that the bearing block (22) and bearing cap (21)
On rib (23) quantity be two, and be located at the both sides of mounting groove (11) respectively, be all connected on each rib (23)
There is fixing piece (33).
4. camshaft according to claim 3 installs module, which is characterized in that first locating piece (31) is fixed with second
Position part (32) is set pin sleeve, and hole (24) is provided through in the rib (23), and the first locating piece (31) and second are determined
The outer wall of both position parts (32) is fitted closely with through hole (24) inner wall.
5. camshaft according to claim 4 installs module, which is characterized in that the fixing piece (33) is fixing screws,
The fixing screws are axially through the first locating piece (31) and the second locating piece (32), and the first locating piece (31) is determined with second
The outer wall of the equal fixing screws of inner wall of both position parts (32) fits closely, and fixing screws end is used for and cylinder head thread fitting.
6. a kind of cam assembly, including cylinder head and camshaft (13), which is characterized in that further include multiple such as claim 1
Module is installed to the camshaft described in 5 any one, the camshaft installation module is axially mounted to along camshaft (13)
In cylinder head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721568880.8U CN207437143U (en) | 2017-11-22 | 2017-11-22 | Camshaft installs module and cam assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721568880.8U CN207437143U (en) | 2017-11-22 | 2017-11-22 | Camshaft installs module and cam assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207437143U true CN207437143U (en) | 2018-06-01 |
Family
ID=62286895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721568880.8U Expired - Fee Related CN207437143U (en) | 2017-11-22 | 2017-11-22 | Camshaft installs module and cam assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207437143U (en) |
-
2017
- 2017-11-22 CN CN201721568880.8U patent/CN207437143U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180601 Termination date: 20211122 |