CN203925639U - Multi-oil-passage pitman arm shaft - Google Patents
Multi-oil-passage pitman arm shaft Download PDFInfo
- Publication number
- CN203925639U CN203925639U CN201420364053.7U CN201420364053U CN203925639U CN 203925639 U CN203925639 U CN 203925639U CN 201420364053 U CN201420364053 U CN 201420364053U CN 203925639 U CN203925639 U CN 203925639U
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- arm shaft
- pitman arm
- oil
- storage tank
- hole
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Abstract
The utility model provides a kind of multi-oil-passage pitman arm shaft, in the front and back of described pitman arm shaft, laterally side face has nut mounting hole and screw mounting hole on the center of position, below screw mounting hole, have attachment hole, attachment hole be communicated with screw mounting hole and with screw mounting hole be concentric hole; Attachment hole runs through the pitman arm shaft lower side face of horizontal position up and down; Have left oil storage tank and the right oil storage tank of annular at nut mounting hole two lateral circle surfaces of pitman arm shaft; Have in left oil storage tank one side the left oil outlet that laterally runs through pitman arm shaft, and left oil outlet and left oil storage tank join; Have in right oil storage tank one side the right oil outlet that laterally runs through pitman arm shaft, and right oil outlet and right oil storage tank join.Have oblique oil inlet hole at the rear side of attachment hole, tiltedly oil inlet hole is connected with right oil outlet.On the inner face of the left side of attachment hole, have oilhole, oilhole is connected with left oil outlet.Each crucial stressed position of this pitman arm shaft, can be lubricated fully.
Description
Technical field
The utility model relates to a kind of appurtenances of engine valve actuating mechanism, especially a kind of pitman arm shaft with multi-oil-passage lubrication channel.
Background technique
Engine valve regulating system is one of important device in engine control parts, in the distribution device of motor, the effect of pneumatic door control system is according to the job order of motor and working procedure, time opening and close intake valve or exhaust valve, make flammable mixing or air enter cylinder, and waste gas is discharged.The distribution device of motor is generally made up of timing gear, peach-shaped axle, valve actuating push rod, pitman arm shaft, rocking arm intake valve, intake valve return spring and valve tappet etc.Pitman arm shaft is the core component of carrying inlet valve rocker and exhaust valve rocker arm, and therefore pitman arm shaft is lubricated very crucial.
The rotating speed of distribution device operation is very high, operating conditions is also very severe, so it is particularly important that the critical component of distribution device is accurately reasonably lubricated, particularly for one of essential elements wherein, pitman arm shaft lubricated extremely important, requires fully lubricated, lubricated eject position is wanted accurately, can reduce wear like this, reduce temperature, just can avoid failure risk.
The pitman arm shaft of traditional engine valve actuating mechanism is generally that employing is lubricated pitman arm shaft from the mode of the oilhole jet lubrication oil of other distribution parts, it is the mode of splash lubrication, it is larger that the lubricant oil that this lubricating system ejects is subject to oil pressure impact, oil pressure is excessive, can cause lubricant oil to diverge to mist of oil, oil pressure is too small cannot ensure eject position and distance, and can lubricant oil eject and fully be ejected into pitman arm shaft and also have risk, can cause so lubricated inaccurate, lubricated not fully reliable.
Summary of the invention
The purpose of this utility model is to overcome existing technological deficiency, and a kind of multi-oil-passage pitman arm shaft that can sufficient lubrication pitman arm shaft is provided.The technical solution adopted in the utility model is:
The utility model provides a kind of multi-oil-passage pitman arm shaft, in the front and back of described pitman arm shaft, laterally side face has nut mounting hole and screw mounting hole on the center of position, below screw mounting hole, have attachment hole, attachment hole be communicated with screw mounting hole and with screw mounting hole be concentric hole; Attachment hole runs through the pitman arm shaft lower side face of horizontal position up and down; Have left oil storage tank and the right oil storage tank of annular at nut mounting hole two lateral circle surfaces of pitman arm shaft; Have in left oil storage tank one side the left oil outlet that laterally runs through pitman arm shaft, and left oil outlet and left oil storage tank join; Have in right oil storage tank one side the right oil outlet that laterally runs through pitman arm shaft, and right oil outlet and right oil storage tank join.
Further, pitman arm shaft up and down laterally under position side face center have axial oil storage tank, axially oil storage tank is connected with attachment hole, and is connected hole and divides right and left.
Further, have oblique oil inlet hole at the rear side of described attachment hole, tiltedly oil inlet hole extends inwardly to right oil outlet and is connected from the side face of pitman arm shaft.
Further, on the inner face of the left side of described attachment hole, have oilhole, oilhole is connected with left oil outlet.
Further, before and after left oil outlet, laterally run through pitman arm shaft, before and after right oil outlet, laterally run through pitman arm shaft.
Further, the aperture of attachment hole is greater than the aperture of screw mounting hole.
Further, axially oil storage tank is U-shaped oil storage tank.
Advantage of the present utility model: the pitman arm shaft that the utility model proposes, there is multi-oil-passage lubricating oil path passage, can make lubricant oil enter into each crucial stressed position of pitman arm shaft, can lubricate very fully, thereby reach the object of accurate sufficient lubrication.
Brief description of the drawings
Fig. 1 is main perspective schematic diagram of the present utility model.
Fig. 2 is upward view angle schematic diagram of the present utility model.
Fig. 3 is sectional view of the present utility model.
Embodiment
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
The utility model proposes a kind of multi-oil-passage pitman arm shaft.First, as shown in Figure 1,3, the front and back of this pitman arm shaft laterally on the center of position side face have nut mounting hole 1 and screw mounting hole 2, below screw mounting hole 2, have attachment hole 3, attachment hole 3 be communicated with screw mounting hole 2 and with screw mounting hole 2 be concentric hole; Attachment hole 3 runs through the pitman arm shaft lower side face of horizontal position up and down.
Have left oil storage tank 4 and the right oil storage tank 5 of annular at 1 liang of lateral circle surface of nut mounting hole of pitman arm shaft; Before and after left oil storage tank 4 one sides have, laterally run through the left oil outlet 6 of pitman arm shaft, and left oil outlet 6 joins with left oil storage tank 4; Before and after right oil storage tank 5 one sides have, laterally run through the right oil outlet 7 of pitman arm shaft, and right oil outlet 7 joins with right oil storage tank 5.The object of design is can enter respectively in left oil storage tank 4, right oil storage tank 5 out from left oil outlet 6, right oil outlet 7 when lubricant oil like this, thereby meets lubrication effect.
Pitman arm shaft up and down laterally under position side face center have axial U-shaped oil storage tank 8, axial U-shaped oil storage tank 8 is just positioned under attachment hole 3, is connected hole 3 and divides right and left.
Attachment hole 3 communicates with screw mounting hole 2, and coaxial, and the aperture of the aperture ratio screw mounting hole 2 of attachment hole 3 is large, and design can make lubricant oil can fully enter in attachment hole 3 like this.
On the inner face of the left side of attachment hole 3, have oilhole 10, oilhole 10 is connected with left oil outlet 6.In addition, as shown in Figure 2, have oblique oil inlet hole 9 at the rear side of attachment hole 3, tiltedly oil inlet hole 9 extends inwardly to right oil outlet 7 and is connected from the side face of pitman arm shaft.
In the time that lubricant oil enters into attachment hole 3, a part of lubricant oil enters oilhole 10, and a part of lubricant oil enters axial U-shaped oil storage tank 8, some lubricated nut and pitman arm shaft.Also some lubricant oil enters from oblique oil inlet hole 9 simultaneously, and because right oil outlet 7 is connected with oblique oil inlet hole 9, lubricant oil enters right oil outlet 7 by oil duct, and flows out from right oil outlet 7, enters in right oil storage tank 5.In like manner, because oilhole 10 is connected with left oil outlet 6, lubricant oil enter oilhole 10 interior after, enter left oil outlet 6 by oil duct, and left oil outlet 6 joins with left oil storage tank 4, lubricant oil enters in left oil storage tank 4, therefore design by this special oil duct, can sufficient lubrication pitman arm shaft.
The aperture of left oil outlet 6 is greater than the aperture of right oil outlet 7, and the aperture of oilhole 10 is greater than the aperture of oblique oil inlet hole 9.
When the utility model work, by the mounting hole on rocking arm, pitman arm shaft is packed into, and by screw-nut, pitman arm shaft is fixed on rocking arm fitting seat, when work, rocking arm is along with stressing conditions swings up and down around pitman arm shaft, controls the closure or openness of valve with this.Therefore pitman arm shaft is lubricated extremely important, by the multi-oil-passage lubricant oil road structure design of pitman arm shaft, can meet the sufficient lubrication between rocking arm and pitman arm shaft, pitman arm shaft and fitting seat, thereby ensure the working life of product.
Claims (7)
1. a multi-oil-passage pitman arm shaft, is characterized in that:
In the front and back of described pitman arm shaft, laterally side face has nut mounting hole (1) and screw mounting hole (2) on the center of position, have attachment hole (3) in screw mounting hole (2) below, attachment hole (3) be communicated with screw mounting hole (2) and with screw mounting hole (2) be concentric hole; Attachment hole (3) runs through the pitman arm shaft lower side face of horizontal position up and down;
Have left oil storage tank (4) and the right oil storage tank (5) of annular at nut mounting hole (1) two lateral circle surface of pitman arm shaft; Have in left oil storage tank (4) one sides the left oil outlet (6) that laterally runs through pitman arm shaft, and left oil outlet (6) joins with left oil storage tank (4); Have in right oil storage tank (5) one sides the right oil outlet (7) that laterally runs through pitman arm shaft, and right oil outlet (7) joins with right oil storage tank (5).
2. multi-oil-passage pitman arm shaft as claimed in claim 1, is characterized in that:
Pitman arm shaft up and down laterally under position side face center have axial oil storage tank (8), axially oil storage tank (8) is connected with attachment hole (3), and is connected hole (3) and divides right and left.
3. multi-oil-passage pitman arm shaft as claimed in claim 1, is characterized in that:
Have oblique oil inlet hole (9) at the rear side of described attachment hole (3), tiltedly oil inlet hole (9) extends inwardly to right oil outlet (7) and is connected from the side face of pitman arm shaft.
4. multi-oil-passage pitman arm shaft as claimed in claim 1, is characterized in that:
On the left side inner face of described attachment hole (3), have oilhole (10), oilhole (10) is connected with left oil outlet (6).
5. the multi-oil-passage pitman arm shaft as described in any one in claim 1～4, is characterized in that:
Before and after left oil outlet (6), laterally run through pitman arm shaft, before and after right oil outlet (7), laterally run through pitman arm shaft.
6. the multi-oil-passage pitman arm shaft as described in any one in claim 1～4, is characterized in that:
The aperture of attachment hole (3) is greater than the aperture of screw mounting hole (2).
7. the multi-oil-passage pitman arm shaft as described in any one in claim 1～4, is characterized in that:
Axially oil storage tank (8) is U-shaped oil storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420364053.7U CN203925639U (en) | 2014-07-02 | 2014-07-02 | Multi-oil-passage pitman arm shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420364053.7U CN203925639U (en) | 2014-07-02 | 2014-07-02 | Multi-oil-passage pitman arm shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203925639U true CN203925639U (en) | 2014-11-05 |
Family
ID=51821468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420364053.7U Expired - Fee Related CN203925639U (en) | 2014-07-02 | 2014-07-02 | Multi-oil-passage pitman arm shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203925639U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047656A (en) * | 2014-07-02 | 2014-09-17 | 无锡锡州机械有限公司 | Multi-oil-duct rocker arm shaft |
-
2014
- 2014-07-02 CN CN201420364053.7U patent/CN203925639U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047656A (en) * | 2014-07-02 | 2014-09-17 | 无锡锡州机械有限公司 | Multi-oil-duct rocker arm shaft |
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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: 20141105 Termination date: 20210702 |