CN208734391U - A kind of camshaft front end - Google Patents
A kind of camshaft front end Download PDFInfo
- Publication number
- CN208734391U CN208734391U CN201821497999.5U CN201821497999U CN208734391U CN 208734391 U CN208734391 U CN 208734391U CN 201821497999 U CN201821497999 U CN 201821497999U CN 208734391 U CN208734391 U CN 208734391U
- Authority
- CN
- China
- Prior art keywords
- camshaft
- mandrel
- periphery
- lubricating oil
- camshaft front
- 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
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- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model relates to automotive engine applications, more particularly to a kind of camshaft front end of transmission shaft and cam axis connection, including hollow mandrel, with first end, second end and third end, the mandrel is made of accurate steel hollow pipe, first end end is additionally provided with positioning spline, and the second end includes having one to enclose the neck to be formed that is recessed inwardly on through-hole and periphery.A kind of camshaft front end provided by the utility model has reduction manufacturing cost, and can simplify design of part, moreover it is possible to the advantages of guaranteeing reliable transmission.
Description
Technical field
The utility model relates to before automotive engine applications more particularly to transmission shaft and a kind of camshaft of cam axis connection
End.
Background technique
It is meshed currently, a timing gears are installed in the front end of camshaft front end with the gear of crankshaft, rear end and cam
Axis main shaft is connected, to realize transmission of the crankshaft to camshaft.Connection type between front end and camshaft main shaft has spiral shell
Line connection and welding, thread connecting mode be primarily present manufacturing process complexity, it is vulnerable the problems such as；The mode of welding, which then exists, answers
The defects of power collection.
Summary of the invention
The utility model to solve the above problems, and manufacturing cost can be reduced by providing, and can simplify design of part, and also
It can guarantee a kind of camshaft front end of reliable transmission.
The technical solution adopted in the utility model is: a kind of camshaft front end, it is characterised in that: including hollow core
Axis has first end, second end and third end, and the mandrel is made of accurate steel hollow pipe, and first end end is additionally provided with
Positioning spline, the second end include having one to enclose the neck to be formed that is recessed inwardly on through-hole and periphery.
The second end through-hole, the circumferential surface at the invagination neck of periphery, the second end surfaces are additionally provided with lubricating oil
Oil duct, lubricating oil duct radius are less than periphery invagination neck radius.
The first end end is additionally provided with crank shaft bolt, connect sealing with mandrel inner hole.
The hollow core shaft inner hole is equipped with lubricating oil.
The utility model has the beneficial effects that: a kind of camshaft front end front end provided by the utility model installs one
Timing gears are meshed with the gear of crankshaft, and middle-end one bearing block of installation is radially fixed, and rear end is connected with camshaft main shaft,
To realize transmission of the crankshaft to camshaft, using interference fit connection between front end and camshaft, it can reduce manufacture
Cost, and design of part can be simplified, moreover it is possible to guarantee the reliability of transmission, cam shaft mandrel inner hole is equipped with lubricating oil and camshaft master
Axis inner hole communicates, and is flow in bearing block by through-hole and lubricating oil duct, plays the role of cooling, lubrication, anti-attrition, clean.
In short, a kind of camshaft front end provided by the utility model, which has, reduces manufacturing cost, and part knot can be simplified
Structure, moreover it is possible to the advantages of guaranteeing reliable transmission.
Detailed description of the invention
Fig. 1 is a kind of axial sectional view of camshaft front end provided by the utility model.
Fig. 2 is the sectional view along A-A of camshaft front end.
Fig. 3 is the left view of camshaft front end.
In figure: 1, first end；2, second end；3, third end；4, positioning spline；5, lubricating oil duct；6, mandrel inner hole.
Specific embodiment
The core of the utility model is to provide a kind of camshaft front end, including hollow mandrel, has first end 1, the
Two ends 2 and third end 3, mandrel are made of accurate steel hollow pipe.
1 end of first end is additionally provided with positioning spline 4, and first end is additionally provided with timing gears, timing gear on 1 periphery
Wheel is additionally provided with crank shaft bolt by positioning key radial positioning, end, and sealing, 6 inner hole of hollow core shaft dress are connect with mandrel inner hole 6
There is lubricating oil.
The second end 2 includes having one to enclose the neck to be formed that is recessed inwardly on through-hole and periphery, and periphery is invaginated at neck
Circumferential surface be provided with lubricating oil duct 5,5 radius of lubricating oil duct is less than periphery and invaginates neck radius, and second end 2 is also set up
There is detachable bearing block, bearing block and second end periphery are cooperatively connected, and bearing block two sides are equipped with thrust plate.
3 periphery of third end and camshaft inner hole are interference fitted.
The content of the utility model is described further with reference to the accompanying drawing:
3 periphery of third end and inner hole of spindle, which use, when specifically used, on the right side of front end is interference fitted, rather than traditional spiral shell
Line connection and welding, thread connecting mode be primarily present manufacturing process complexity, it is vulnerable the problems such as.The mode of welding, which then exists, answers
The defects of power collection.Cost of manufacture is lower for from technique, and structure simplifies, and installation is detachable at the A-A of front end second end 2
Formula bearing block, and be fitted close with axis, the circular runout in transmission process is prevented, improves the stability of connection, and second
2 peripheries are held to open up lubricating oil duct 5 and through-hole, the gear phase of a timing gears and crankshaft is installed in 1 periphery of front end first end
Engagement, rear end is connected with camshaft main shaft, to realize transmission of the crankshaft to camshaft, first end lower part is provided with positioning key
Slot 4 is prevented timing gears radial rotary, is used at first end mandrel inner hole 6 by positioning key connection timing gears and first end
Cooling, lubrication, anti-attrition, clean is played the role of in crank shaft bolt sealing, and be packed into lubricating oil in inner hole, it is ensured that transmission can
By property.The link portions of front end and camshaft main shaft are the aperture on the right side of front end by the way of, the basic size in aperture with
Camshaft main shaft left end basic size is identical, and the type of design hole axle cooperation is interference fit.It is passed according to different model engine
It is dynamic to require, the depth in hole and the size of magnitude of interference can be changed.When installation by the way of hot jacket, it can be completed with once mounting,
It is easy to operate.
According to above-mentioned specific embodiment as it can be seen that a kind of camshaft front end provided by the utility model, which has, reduces manufacture
Cost, and design of part can be simplified, moreover it is possible to the advantages of guaranteeing reliable transmission.
Claims (4)
1. a kind of camshaft front end, it is characterised in that: including hollow mandrel, there is first end (1), second end (2) and the
Three ends (3), the mandrel are made of accurate steel hollow pipe, and first end (1) end is provided with positioning spline (4), described
Second end (2), which is equipped on through-hole and periphery, has one to enclose the neck to be formed that is recessed inwardly.
2. camshaft front end according to claim 1, it is characterised in that: second end (2) through-hole is located in periphery
The circumferential surface at neck is fallen into, second end (2) surface is additionally provided with lubricating oil duct (5), and lubricating oil duct (5) radius is less than outer
All invagination neck radius.
3. camshaft front end according to claim 1, it is characterised in that: first end (1) end is additionally provided with song
Axle bolt is connect with mandrel inner hole (6).
4. camshaft front end according to claim 1, it is characterised in that: the hollow mandrel inner hole (6) is equipped with profit
Lubricating oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821497999.5U CN208734391U (en) | 2018-09-13 | 2018-09-13 | A kind of camshaft front end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821497999.5U CN208734391U (en) | 2018-09-13 | 2018-09-13 | A kind of camshaft front end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208734391U true CN208734391U (en) | 2019-04-12 |
Family
ID=66033563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821497999.5U Expired - Fee Related CN208734391U (en) | 2018-09-13 | 2018-09-13 | A kind of camshaft front end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208734391U (en) |
-
2018
- 2018-09-13 CN CN201821497999.5U patent/CN208734391U/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: 20190412 Termination date: 20200913 |