CN201284739Y - Mounting structure for camshaft of mono-block pump - Google Patents
Mounting structure for camshaft of mono-block pump Download PDFInfo
- Publication number
- CN201284739Y CN201284739Y CNU2008201045989U CN200820104598U CN201284739Y CN 201284739 Y CN201284739 Y CN 201284739Y CN U2008201045989 U CNU2008201045989 U CN U2008201045989U CN 200820104598 U CN200820104598 U CN 200820104598U CN 201284739 Y CN201284739 Y CN 201284739Y
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- CN
- China
- Prior art keywords
- camshaft
- gear
- thrust
- pump
- mounting structure
- 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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Abstract
The utility model discloses a mounting structure of a unit pump camshaft, which comprises a unit pump camshaft, a unit pump chamber, a gearwheel chamber cover, a thrust plate, an oil injection pump gearwheel, a gearwheel chamber and a signal disc, wherein, the unit pump camshaft and the oil injection pump gearwheel are assembled to form a thrust groove. The thrust plate is clamped in the thrust groove to perform the axial thrust function of the shaft system. The signal disc is mounted in the front of the oil injection pump gearwheel, rotates along with the oil injection pump gearwheel, and is used for a sensor mounted on the gearwheel chamber to get signals. The utility model has the advantages that the structure is simple and reliable; the signal disc does not need to be arranged on the pump chamber, the length of the camshaft is shortened, and the structure of the camshaft is simplified. The utility model is suitable for engines using electric-control unit pumps.
Description
Technical field
The utility model relates to a kind of mounting structure of monoblock pump camshaft, relates in particular to a kind of monoblock pump camshaft mounting structure with thrust structure.
Background technique
At present, the thrust structure of monoblock pump camshaft generally adopts design thrust structure on pump chamber, perhaps adopts the fork-shaped thrust plate.The deficiency of first kind of structure is that member increases, and increases fixing link; The deficiency of second kind of structure is poor reliability.And the signal of monoblock pump camshaft to take generally be sensor installation on pump chamber, on camshaft, increase the signal panel structure, make the complex structure of camshaft, length is elongated, pump chamber length has also extended thereupon, increase the weight of motor, reduced motor stability and reliability in the course of the work.
Summary of the invention
At the deficiencies in the prior art, the utility model provides a kind of monoblock pump camshaft mounting structure, need not additionally increase the length of camshaft and pump chamber, simplifies the structure of camshaft, and is simple and reliable for structure.
The utility model monoblock pump camshaft mounting structure comprises monoblock pump camshaft, monomer pump chamber, gear chamber cover, thrust plate, fuel injection pump gear, gear chamber and signal panel.Wherein monoblock pump camshaft and fuel injection pump gear assembling back forms a thrust groove, and described thrust plate is stuck in the axial thrust effect of playing axle system in the thrust groove.
In the utility model monoblock pump camshaft mounting structure, fuel injection pump gear and monoblock pump camshaft are installed together, and gear face and camshaft end face form a thrust groove, and thrust plate is stuck in this thrust groove and plays thrust function.The monoblock pump camshaft is installed in the monomer pump chamber axis hole, and monomer pump chamber and thrust plate are installed on the gear chamber cover.Signal panel are installed in described fuel injection pump gear front, rotate with fuel injection pump gear, give the sensor number of winning the confidence that is installed on the gear chamber with.Sensor is installed on the gear chamber.Fuel injection pump gear and signal panel all adopt strong and monoblock pump camshaft location.
In the utility model monoblock pump camshaft mounting structure, be provided with thrust surface and thrust shaft at the end face of camshaft, be provided with bolt hole at the thrust shaft end face, the thrust surface front end is provided with gear shaft.On gear shaft, be provided with positioning spline.The fine finishing of gear shaft end face forms the thrust groove jointly with the thrust shaft end face.
In the utility model monoblock pump camshaft mounting structure, the thickness of thrust plate is less than the height of thrust shaft; Be provided with axis hole in the thrust plate with the thrust shaft Spielpassung; Thrust plate is provided with the fixedly bolt via hole of usefulness.
In the utility model monoblock pump camshaft mounting structure, gear axis hole and camshaft are little Spielpassung, and the gear axis hole is provided with positioning spline and bolt via hole, in the hope of accurate positioning.Signal panel center hole and camshaft be little Spielpassung and be provided with positioning spline and the bolt via hole in the hope of accurate positioning.
In the utility model monoblock pump camshaft mounting structure, monomer pump chamber front-end face is provided with O shape ring recess, and monomer pump chamber front-end face is provided with tapped hole.Gear chamber registration signal dish is provided with the sensor mounting hole.
In the utility model monoblock pump camshaft mounting structure, other structural relation and position relation can adopt the routine techniques design to determine.
Compared with prior art, the beneficial effects of the utility model are: need not additionally increase the length of camshaft and pump chamber, simplify the structure of camshaft, and simple and reliable for structure.
Description of drawings
Fig. 1 is the sectional view of the utility model monoblock pump camshaft mounting structure;
Fig. 2-the 1st, the sectional view of camshaft structure;
Fig. 2-the 2nd, the sectional view of thrust plate structure;
Fig. 2-the 3rd, the sectional view of fuel injection pump gear structure;
Fig. 2-the 4th, the sectional view of signal panel structure.
Mark the following drawings mark thereon in conjunction with the accompanying drawings:
1-monoblock pump camshaft; 2-monomer pump chamber; 3-O shape circle; The 4-gear chamber cover; The 5-pad; The 6-gear chamber; The 7-thrust plate; The 8-fuel injection pump gear; The 9-signal panel; 10-gear bolt; The 11-key; 12-pump chamber bolt; 13-gear chamber bolt; The 14-sensor; 15-gear bolt hole; The 16-thrust surface; The 17-thrust shaft; The 18-gear shaft; The 19-keyway; 20-thrust plate axis hole; 21-thrust plate bolt via hole; 22-gear keyway; 23-gear axis hole; 24-gear bolt via hole; 25-signal panel axis hole; 26-signal panel keyway; 27-signal panel bolt via hole.
Embodiment
Below in conjunction with accompanying drawing, an embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model is not subjected to the restriction of embodiment.
As shown in Figure 1 and Figure 2, the mounting structure of the utility model monoblock pump camshaft comprises monoblock pump camshaft 1, monomer pump chamber 2, gear chamber cover 4, gear chamber 6, thrust plate 7, fuel injection pump gear 8, signal panel 9.During installation, earlier camshaft 1 is packed in the axis hole of monomer pump chamber 2, O shape circle 3 is put into the O shape ring recess of monomer pump chamber 2 front-end faces, the bolt via hole that passes on thrust plate bolt via hole 21 and the gear chamber cover 4 with pump chamber bolt 12 is screwed into monomer pump chamber bolt hole again, and monomer pump chamber 2, thrust plate 7 and gear chamber cover 4 are tightened together.Then key 11 is squeezed in the keyway 19, fuel injection pump gear 8 and signal panel 9 alignment keys 11, pass signal panel bolt via hole 27 and gear bolt via hole 24 with gear bolt 10, be screwed into monoblock pump camshaft bolt hole 15, fuel injection pump gear 8 and signal panel 9 are fastened on the monoblock pump camshaft 1 usefulness of signal panel 9 double as fuel injection pump gears 8 pressing plates.At last, with gear chamber bolt 13 gear chamber 6 and gear chamber cover 4 are tightened together, shimming 5 between the two, sensor 14 are installed on the gear chamber 6 get final product.
Wherein, the thickness B of signal panel is littler than the length A of thrust shaft, axial clearance is just arranged, the size of the axial clearance that the difference of A, B just is after monoblock pump camshaft 1 is installed like this.Axis hole 20 diameters on the thrust plate 7 are bigger than thrust shaft 17 diameters, are big Spielpassung.The diameter of gear shaft 18 is littler than the diameter of gear axis hole 23 signal panel axis holes 25, is little Spielpassung.Thrust surface 16 will improve hardness through handling.
It should be noted that at last: above embodiment only in order to the explanation the utility model and and the described technological scheme of unrestricted the utility model; Therefore, although this specification has been described in detail the utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from the technological scheme and the improvement thereof of spirit and scope of the present utility model, and it all should be encompassed in the claim scope of the present utility model.
Claims (10)
1, a kind of mounting structure of monoblock pump camshaft comprises monoblock pump camshaft, monomer pump chamber, gear chamber cover, thrust plate, fuel injection pump gear, gear chamber and signal panel; It is characterized in that: monoblock pump camshaft and fuel injection pump gear assembling back form a thrust groove, and described thrust plate is stuck in the axial thrust effect of playing axle system in the thrust groove.
2, according to the mounting structure of the described monoblock pump camshaft of claim 1, it is characterized in that: described signal panel are installed in described fuel injection pump gear front.
3, according to the mounting structure of the described monoblock pump camshaft of claim 1, it is characterized in that: fuel injection pump gear and monoblock pump camshaft are installed together, and gear face and camshaft end face form a thrust groove.
4, according to the mounting structure of the described monoblock pump camshaft of claim 1, it is characterized in that: the monoblock pump camshaft is installed in the monomer pump chamber axis hole, and monomer pump chamber and thrust plate are installed on the gear chamber cover; Sensor is installed on the gear chamber, and signal panel are installed on the fuel injection pump gear.
5, according to the mounting structure of the described monoblock pump camshaft of claim 1, it is characterized in that: the end face at camshaft is provided with thrust surface and thrust shaft, is provided with bolt hole at the thrust shaft end face, and the thrust surface front end is provided with gear shaft, is provided with positioning spline on gear shaft; The fine finishing of gear shaft end face, gear shaft end face and thrust shaft end face form the thrust groove jointly.
6, according to the mounting structure of the described monoblock pump camshaft of claim 5, it is characterized in that: the thickness of thrust plate is less than the height of thrust shaft.
7, according to the mounting structure of the described monoblock pump camshaft of claim 5, it is characterized in that: be provided with axis hole in the thrust plate with the thrust shaft Spielpassung; Thrust plate is provided with the fixedly bolt via hole of usefulness.
8, according to the mounting structure of the described monoblock pump camshaft of claim 1, it is characterized in that: gear axis hole and camshaft are little Spielpassung, and the gear axis hole is provided with positioning spline and bolt via hole; Signal panel center hole and camshaft are little Spielpassung, and signal panel are provided with positioning spline and bolt via hole.
9, according to the mounting structure of the described monoblock pump camshaft of claim 1, it is characterized in that: monomer pump chamber front-end face is provided with O shape ring recess, and monomer pump chamber front-end face is provided with tapped hole; Gear chamber registration signal dish is provided with the sensor mounting hole.
10, according to the mounting structure of the described monoblock pump camshaft of claim 1, it is characterized in that: fuel injection pump gear and signal panel all adopt strong and monoblock pump camshaft location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201045989U CN201284739Y (en) | 2008-09-18 | 2008-09-18 | Mounting structure for camshaft of mono-block pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201045989U CN201284739Y (en) | 2008-09-18 | 2008-09-18 | Mounting structure for camshaft of mono-block pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201284739Y true CN201284739Y (en) | 2009-08-05 |
Family
ID=40949724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201045989U Expired - Fee Related CN201284739Y (en) | 2008-09-18 | 2008-09-18 | Mounting structure for camshaft of mono-block pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201284739Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330728A (en) * | 2011-08-05 | 2012-01-25 | 无锡开普动力有限公司 | Thrust structure of engine cam shaft |
| CN103410581A (en) * | 2013-07-05 | 2013-11-27 | 广西玉柴机器股份有限公司 | Internal combustion engine cam shaft |
| CN103912387A (en) * | 2013-01-09 | 2014-07-09 | 广西玉柴机器股份有限公司 | Mechanical fuel injection pump fuel amount adjusting device |
-
2008
- 2008-09-18 CN CNU2008201045989U patent/CN201284739Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330728A (en) * | 2011-08-05 | 2012-01-25 | 无锡开普动力有限公司 | Thrust structure of engine cam shaft |
| CN102330728B (en) * | 2011-08-05 | 2013-06-05 | 无锡开普动力有限公司 | Thrust structure of engine cam shaft |
| CN103912387A (en) * | 2013-01-09 | 2014-07-09 | 广西玉柴机器股份有限公司 | Mechanical fuel injection pump fuel amount adjusting device |
| CN103912387B (en) * | 2013-01-09 | 2017-02-08 | 广西玉柴机器股份有限公司 | Mechanical fuel injection pump fuel amount adjusting device |
| CN103410581A (en) * | 2013-07-05 | 2013-11-27 | 广西玉柴机器股份有限公司 | Internal combustion engine cam shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090805 Termination date: 20130918 |