CN202039911U - Cam shaft support and cam shaft support unit - Google Patents
Cam shaft support and cam shaft support unit Download PDFInfo
- Publication number
- CN202039911U CN202039911U CN2011200186869U CN201120018686U CN202039911U CN 202039911 U CN202039911 U CN 202039911U CN 2011200186869 U CN2011200186869 U CN 2011200186869U CN 201120018686 U CN201120018686 U CN 201120018686U CN 202039911 U CN202039911 U CN 202039911U
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- camshaft
- camshaft stand
- cam shaft
- oil
- shaft support
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Abstract
The utility model relates to a cam shaft support and a cam shaft support unit. The cam shaft support comprises a shell-shaped cam shaft support body and cam shaft bearing holes which are formed at two sides of the cam shaft support body and used for supporting the rotary motion of a cam shaft and forming lubrication. The cam shaft support unit is provided with the cam shaft support and comprises the cam shaft support body, the cam shaft bearing holes, an electromagnetic valve mounting hole, a working oil passage of the electromagnetic valve mounting hole, an oil and gas separator mounting surface, a cam shaft position sensor mounting hole, a front end flange surface, a bottom flange surface, a mechanical vacuum pump mounting surface, a blank cap mounting surface and an oil passage, wherein the electromagnetic valve mounting hole is arranged at the inner side of the first bearing hole; the oil and gas separator mounting surface is arranged at the upper part of the cam shaft support body; the cam shaft position sensor mounting hole is arranged at the upper part of the tail end of the cam shaft support body; the front end flange surface is formed at the front end of the cam shaft support body; the bottom flange surface is formed on the bottom surface of the cam shaft support body; the mechanical vacuum pump mounting surface and the blank cap mounting surface are respectively arranged at the tail end of the cam shaft support body; and the oil passage is arranged below a third bearing hole for mounting a third bearing counted from the front end.
Description
Technical field
The utility model relates to a kind of camshaft stand and camshaft stand unit, relates in particular to the camshaft stand and the camshaft stand unit that use in the vapour, diesel engine of each discharge capacity.
Background technique
The Design trend of modern motor, one side is to improve constantly the power performance of product, fuel economy and product reliability and durability; Emphasize on the other hand towards the theory of making of designing and developing, reduce the manufacturing and the assembling difficulty of component, improve the level of integration of subtense angle part, shorten the length of manufacturing and assembling line, reduce the expense of manufacturing and logistics link, thereby reduce the manufacture cost of part, improve the stability of product workmanship.
As shown in Figure 5, existing dual overhead camshaft engine V cylinder cap mainly is made up of cylinder cap body A and camshaft-bearing cap B two large divisions.
The processing technology of above-mentioned cylinder cap is as follows:
A) utilize the camshaft semicircle orifice of spherical cutter semi finishing cylinder cap;
B) fine finishing camshaft-bearing cap positioning pin hole and tapped hole;
C) assembling camshaft-bearing cap, and tighten to assembling moment;
D) stamp direction and sequence number sign at camshaft-bearing cap;
E) utilize the boring of whole hard alloy cutter to enter, arrange each 5 camshaft bearing hole successively.
The assembly technology of above-mentioned cylinder cap is as follows:
A) the dismounting camshaft-bearing cap is put camshaft-bearing cap successively well, and is made direction signs forward on pallet;
B) cylinder cap and camshaft-bearing cap with palletized transport to next station;
C) cylinder cap is taken off and puts into assembly line from pallet, assembling oil sealing, valve, valve spring and tappet etc.;
D) camshaft is put into the semicircle orifice place of cylinder cap, and camshaft-bearing cap is placed on the camshaft bearing journal place by sequence number and direction, tighten bolt of bearing cap simultaneously.
Yet, the limitation of traditional cylinder cap is: camshaft-bearing cap and cylinder cap are separate elements, bore hole again after the assembling, bore hole required precision height, but again must the dismounting bearing cap during camshaft in assembling, the coaxality when running in bearings covers so once more must be lower than the precision of camshaft hole independently.In addition, the camshaft-bearing cap after machining can not be replaced with other camshaft-bearing cap again, thereby as long as wherein there is a bearing cap defective, so whole cylinder cap unit is also defective, can't do over again.During assembling, if damage or lose one of them bearing cap, whole cylinder cap is also scrapped thereupon, causes the loss of machining period and material.
In addition, in order to form airtight valve cage space, realize that the separation of oil-containing gases and lubricant oil reflux, the application of this kind cylinder cap also needs to cooperate the valve chamber cover of band Oil-gas Separation function.
The model utility content
The purpose of this utility model is to provide a kind of manufacture difficulty that reduces the cylinder cap machined part, simplifies integrally-built camshaft stand of cylinder cap and camshaft stand unit.
Camshaft stand of the present utility model comprises: the camshaft stand body of case shape; And be formed at camshaft stand body both sides, be used for the rotation motion of supporting cam wheel axle and form lubricated camshaft bearing hole.
According to said structure, in the manufacturing procedure of camshaft stand of the present utility model, the manufacturing procedure of camshaft bearing can be peeled off from the manufacturing procedure of cylinder cap, the processing in this camshaft bearing hole is directly finished on the camshaft stand blank, save the assembling/processing link of camshaft FE Tiler.Simplified the manufacturing procedure of cylinder cap, helped saving the investment of cylinder cap machining line, avoided because the FE Tiler defective causes the risk of material and machining period loss.
In addition, in the internal surface of the 1st bearing hole the most close front end (being motor protecgulum C one side) of camshaft stand body, that be used to install the 1st bearing and outer surface form thrust surface and outside thrust surface, be used to limit the axial float of camshaft.
And the disposed inboard of the 1st bearing hole has solenoid valve mounting hole and working oil passage thereof, is used for the auxiliary adjusting that realizes camshaft phase.
And the middle part of camshaft stand body is furnished with the spark coil mounting hole, is used to install the pen type spark coil.
In addition, the camshaft stand upper part of body is provided with the deaerator attachment face, the lubricant oil in separation and the recovery oil gas.
The tail end of camshaft stand body (relative with front end) top is provided with the CMPS Camshaft Position Sensor mounting hole, and CMPS Camshaft Position Sensor is used to gather camshaft-position signal, and inputs to ECU, and the auxiliary camshaft phase of finishing is regulated.
The front end of camshaft stand body forms the front end flange face, by clamping bolt and motor front cover match, and component part timing chain box.
The bottom surface of camshaft stand body forms the flange in the bottom face, and bolt hole middle by part and periphery cooperates with the last plane of cylinder cap, and the plane is provided with glue groove near cavity one side, is used to hold the silica gel of extruding on the fitting surface.
In addition, with the locating stud location, positioning pin hole is arranged on camshaft stand body two diagonal angles between camshaft stand body and the cylinder cap.
The tail end of camshaft stand body is respectively arranged with oil-sealed rotary pump attachment face and stifle attachment face.
Below the 3rd bearing hole, be provided with oil duct, be used for the lubricant oil of cylinder cap main oil gallery is transported to camshaft oil gallery, realize the lubricated of each bearing, and provide splash lubrication, provide work fluid for oil-sealed rotary pump simultaneously to the valve train part.
In addition, camshaft stand of the present utility model unit comprises: camshaft stand, and this camshaft stand comprises: the camshaft stand body of case shape, be formed at described camshaft stand body both sides, be used for the rotation motion of supporting cam wheel axle and form lubricated camshaft bearing hole, be arranged at the solenoid valve mounting hole and the working oil passage thereof of the inboard of described the 1st bearing hole, be arranged at the deaerator attachment face on camshaft stand body top, be arranged at the CMPS Camshaft Position Sensor mounting hole on the tail end top of camshaft stand body, be formed at the front end flange face of camshaft stand body front end, be formed at the flange in the bottom face of camshaft stand body bottom surface, be arranged at the oil-sealed rotary pump attachment face and the stifle attachment face of camshaft stand body tail end respectively, and be used to install the oil duct that below the 3rd bearing hole of the 3rd bearing of front end arrangement, is provided with; Be installed on the variable cam phase regulator of described camshaft stand; Be installed on the control electromagnetic valve in the described solenoid valve mounting hole; Be installed on the CMPS Camshaft Position Sensor in the described CMPS Camshaft Position Sensor mounting hole; Be installed on the deaerator on the described deaerator attachment face; Be installed on the oil-sealed rotary pump on the described oil-sealed rotary pump attachment face; And the stifle that is installed on the stifle attachment face.
Description of drawings
Fig. 1 is to the camshaft stand body biopsy cavity marker devices of embodiment of the present invention and the stereogram when overlooking.
Fig. 2 is the stereogram when the camshaft stand body of embodiment of the present invention is looked up.
Fig. 3 is the schematic representation of assembly process of the camshaft stand unit of expression embodiment of the present invention.
Fig. 4 is the stereogram of expression when the camshaft stand unit of embodiment of the present invention is integrated in motor.
Fig. 5 is the stereogram of the cylinder cap of expression prior art.
Embodiment
Below embodiment of the present utility model is elaborated.Following mode of execution only is an example of technical solutions of the utility model, should not be interpreted as the qualification to the utility model protection domain.
(1) structure of camshaft stand
As shown in Figure 1, 2, the camshaft stand D of present embodiment comprises: the camshaft stand body of case shape and be formed at camshaft stand body both sides, be used for the rotation motion of supporting cam wheel axle and form lubricated camshaft bearing hole 1.
The installation place of the 1st bearing of the most close front end (being motor protecgulum C one side) (only in the sectional view of Fig. 1 as seen) is thrust surface 2a and outer thrust surface 2b in promptly the inside and outside surface of the 1st bearing hole forms, and is used to limit the axial float of camshaft.The 1st bearing hole disposed inboard has solenoid valve mounting hole 3 and working oil passage 8 (see figure 2)s thereof, is used for the auxiliary adjusting that realizes camshaft phase.
And the middle part of camshaft stand body is furnished with spark coil mounting hole 4, is used to install the pen type spark coil.The camshaft stand body is taken into account the collecting action of the airtight and oil laden air in valve cage and crankcase space, is provided with deaerator attachment face 5 at an upper portion thereof, and deaerator is used for separating and reclaiming the lubricant oil of oil gas.The tail end of camshaft stand body (relative with front end) top is provided with CMPS Camshaft Position Sensor mounting hole 6, and CMPS Camshaft Position Sensor is used to gather camshaft-position signal, and inputs to ECU, and the auxiliary camshaft phase of finishing is regulated.The front end of camshaft stand body forms front end flange face 7, cooperates component part timing chain box by clamping bolt with motor protecgulum C (see figure 4).
The bottom surface of camshaft stand body forms flange in the bottom face 13, and bolt hole middle by part and periphery cooperates with the last plane of cylinder cap E, and the plane is provided with glue groove near cavity one side, is used to hold the silica gel of extruding on the fitting surface; In addition, with locating stud 12 location, positioning pin hole 12 is arranged on camshaft stand body two diagonal angles between camshaft stand body and the cylinder cap.
The tail end of camshaft stand body is respectively arranged with oil-sealed rotary pump (MVP) attachment face 11 and stifle attachment face 10.Below the 3rd bearing hole, be provided with oil duct 9, be used for the lubricant oil of cylinder cap main oil gallery is transported to camshaft oil gallery, realize the lubricated of each bearing, and provide splash lubrication, provide work fluid for oil-sealed rotary pump simultaneously to the valve train part.
With respect to the traditional cylinder cover body, in the manufacturing procedure of the camshaft stand body of present embodiment, the manufacturing procedure of camshaft bearing can be peeled off from cylinder cap, the processing in this camshaft bearing hole is directly finished on the camshaft stand blank, save the assembling/processing link of camshaft FE Tiler.Simplified the manufacturing procedure of cylinder cap, helped saving the investment of cylinder cap machining line, avoided because the FE Tiler defective causes the risk of material and machining period loss.
(2) assembling of camshaft stand unit
The formation situation of camshaft stand unit still, is the simplification view as shown in Figure 3, and relevant fastening piece and the sub-part of non-interface have all been done to omit and handled.
Admission cam shaft 14 and exhaust cam shaft 15 are packed into from the tail end of camshaft stand respectively, and the thrust surface on camshaft first axle journal contacts restriction camshaft play forward with interior thrust surface 2a in the 1st bearing hole of camshaft stand; From camshaft front end assembling camshaft phase regulator 16, phase regulator and camshaft are tightened with bolt, and it is provided with thrust surface near camshaft side, and contact with outer thrust surface 2b in the 1st bearing hole, limit camshaft play backward.
Then, make-up machinery vacuum pump 17 on the oil-sealed rotary pump attachment face 11 of camshaft stand D afterbody, the driving head of exhaust cam shaft 15 tail ends and the rotor of vacuum pump are connected, drive the vacuum pump suction air, provide degree of vacuum to brake system, compare with the electronic vacuum pump of split, the oil-sealed rotary pump reaction is faster, cost is lower.
With oil-sealed rotary pump 17 similarly, stifle 18 is packed into from afterbody, be installed on the stifle attachment face 10, be used for space, sealed air valve chamber.
On camshaft stand D top, the CMPS Camshaft Position Sensor 19 of packing in CMPS Camshaft Position Sensor mounting hole 6 is installed deaerator 20 on deaerator attachment face 5, and the control electromagnetic valve 21 of packing in solenoid valve mounting hole 3.
Camshaft stand of the present invention unit is included into the camshaft stand cells D with a part of part of traditional cylinder cap unit E, simplify cylinder cap unit assembly process, avoided the concentrations of logistics, helped the modularization manufacturing of motor, improved efficient, helped reducing cost.
(3) installation of camshaft stand unit
Fig. 4 is the application example of camshaft stand unit on a in-line four cylinder motor of expression present embodiment.
The camshaft stand cells D is by being bolted on the cylinder cap unit E, together constitute the last end system of motor with cylinder cap unit E, the face that the camshaft stand cells D combines with cylinder cap unit E is with silica gel sealing, and the epicoele (oil jacket) of the inner chamber of camshaft stand cells D and cylinder cap unit E constitutes valve cage.
The front-end face of the front-end face of camshaft stand cells D, cylinder cap unit, the front-end face of cylinder body (not shown) and oil sump inner chamber (not shown) constitute the timing chain roller box with protecgulum C inner chamber.
Valve cage communicates with the PCV window of timing chain roller box by the cylinder cap front-end face; Valve cage communicates with crankcase by the cylinder cap spill port, and the timing chain roller box communicates with crankcase by oil sump.Thereby three important chamber-crankcases of motor, timing chain roller box, valve cage communicate with each other, constitute complete crankcase ventilation passage, by the spill port and the PCV window area of different sizes are set, can control the pressure balance of three chambers, thereby realize flowing in order of oil return and oil gas, further reduction enters the content of the lubricant oil before the deaerator.
In sum, adopt the camshaft stand unit of present embodiment to have following advantage:
A) division of the function of different parts is clear and definite more clear,
B) help the layout design of firing chamber, air flue and the ejecting system of cylinder cap;
C) reduce the number of spare parts of drive system, improved the rigidity of system and further fallen paper cost.
Claims (12)
1. a camshaft stand is characterized in that, comprising: the camshaft stand body of case shape; And
Be formed at described camshaft stand body both sides, be used for the rotation motion of supporting cam wheel axle and form lubricated camshaft bearing hole.
2. camshaft stand as claimed in claim 1, it is characterized in that, in the internal surface of the 1st bearing hole the most close front end of described camshaft stand body, that be used to install the 1st bearing and outer surface form thrust surface and outside thrust surface, with the axial float of restriction camshaft.
3. camshaft stand as claimed in claim 2 is characterized in that, in the disposed inboard of described the 1st bearing hole solenoid valve mounting hole and working oil passage thereof is arranged.
4. camshaft stand as claimed in claim 1 is characterized in that, described camshaft stand upper part of body is provided with the deaerator attachment face.
5. camshaft stand as claimed in claim 1 is characterized in that the top of the tail end of described camshaft stand body is provided with the CMPS Camshaft Position Sensor mounting hole.
6. camshaft stand as claimed in claim 1 is characterized in that, the front end of camshaft stand body forms the front end flange face, and the bottom surface forms the flange in the bottom face.
7. camshaft stand as claimed in claim 1 is characterized in that, the tail end of described camshaft stand body is respectively arranged with oil-sealed rotary pump attachment face and stifle attachment face.
8. camshaft stand as claimed in claim 1 is characterized in that, is provided with oil duct being used to install below the 3rd bearing hole of the 3rd bearing of front end arrangement, is used for the lubricant oil of cylinder cap main oil gallery is transported to camshaft oil gallery.
9. camshaft stand unit, it is characterized in that, comprise: camshaft stand, this camshaft stand comprises: the camshaft stand body of case shape, be formed at described camshaft stand body both sides, be used for the rotation motion of supporting cam wheel axle and form lubricated camshaft bearing hole, be arranged at the solenoid valve mounting hole and the working oil passage thereof of the inboard of described the 1st bearing hole, be arranged at the deaerator attachment face on camshaft stand body top, be arranged at the CMPS Camshaft Position Sensor mounting hole on the tail end top of camshaft stand body, be formed at the front end flange face of camshaft stand body front end, be formed at the flange in the bottom face of camshaft stand body bottom surface, be arranged at the oil-sealed rotary pump attachment face and the stifle attachment face of camshaft stand body tail end respectively, and be used to install the oil duct that below the 3rd bearing hole of the 3rd bearing of front end arrangement, is provided with;
Be installed on the variable cam phase regulator of described camshaft stand;
Be installed on the control electromagnetic valve in the described solenoid valve mounting hole;
Be installed on the CMPS Camshaft Position Sensor in the described CMPS Camshaft Position Sensor mounting hole;
Be installed on the deaerator on the described deaerator attachment face;
Be installed on the oil-sealed rotary pump on the described oil-sealed rotary pump attachment face; And
Be installed on the stifle of stifle attachment face.
10. camshaft stand as claimed in claim 9 unit is characterized in that, with the locating stud location, positioning pin hole is arranged on two diagonal angles of camshaft stand body between described camshaft stand and the cylinder cap.
11. camshaft stand as claimed in claim 9 unit is characterized in that,
The camshaft stand unit makes its flange in the bottom face cooperate with the last plane of cylinder cap by the bolt hole of centre and periphery, and the flange in the bottom face is provided with glue groove near cavity one side, is used to hold the silica gel of extruding on the fitting surface.
12. camshaft stand as claimed in claim 9 unit is characterized in that, the camshaft stand unit is by clamping bolt and motor front cover match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200186869U CN202039911U (en) | 2011-01-20 | 2011-01-20 | Cam shaft support and cam shaft support unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200186869U CN202039911U (en) | 2011-01-20 | 2011-01-20 | Cam shaft support and cam shaft support unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202039911U true CN202039911U (en) | 2011-11-16 |
Family
ID=44967360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200186869U Expired - Fee Related CN202039911U (en) | 2011-01-20 | 2011-01-20 | Cam shaft support and cam shaft support unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202039911U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967554A (en) * | 2013-02-01 | 2014-08-06 | 铃木株式会社 | Vacuum Pump Mounting Structure |
| CN110919354A (en) * | 2019-12-10 | 2020-03-27 | 重庆渝江压铸有限公司 | Cleaning method of camshaft support assembly |
-
2011
- 2011-01-20 CN CN2011200186869U patent/CN202039911U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967554A (en) * | 2013-02-01 | 2014-08-06 | 铃木株式会社 | Vacuum Pump Mounting Structure |
| CN103967554B (en) * | 2013-02-01 | 2016-09-28 | 铃木株式会社 | Attachment structure of vacuum pump |
| CN110919354A (en) * | 2019-12-10 | 2020-03-27 | 重庆渝江压铸有限公司 | Cleaning method of camshaft support assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20111116 Termination date: 20200120 |