CN203463159U - Valve tappet device - Google Patents
Valve tappet device Download PDFInfo
- Publication number
- CN203463159U CN203463159U CN201320550834.0U CN201320550834U CN203463159U CN 203463159 U CN203463159 U CN 203463159U CN 201320550834 U CN201320550834 U CN 201320550834U CN 203463159 U CN203463159 U CN 203463159U
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- CN
- China
- Prior art keywords
- tappet
- pulley
- axle sleeve
- valve tappet
- sleeve
- 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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- Lubrication Of Internal Combustion Engines (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model provides a valve tappet device. The valve tappet device comprises a pulley shaft, a pulley and a shaft sleeve, wherein the pulley is sleeved on the pulley shaft and is rotatably arranged relative to the pulley shaft; the shaft sleeve is sleeved on the periphery of the pulley shaft and is positioned between the pulley shaft and the pulley; the shaft sleeve comprises a sleeve and an oil guiding slot formed on the outer surface of the sleeve. The valve tappet device can improve the lubricating effect and reduce wear of the outer surface of the shaft sleeve; the service life of the valve tappet device is prolonged.
Description
Technical field
The utility model relates to the technical field of mechanical structure, more specifically, relates to a kind of valve tappet device.
Background technique
Valve tappet device is one of assembly of motor air distribution gear, its effect is that the thrust of camshaft is reached to inlet and outlet door by tappet, push rod and rocking arm, regularly open or close inlet and outlet door, the motion of fitting piston, inputs mixed gas cylinder and waste gas is discharged to cylinder.
The valve tappet device of prior art is comprised of tappet pulley, pulley spindle, axle sleeve.Tappet pulley and pulley spindle are made by steel for carburizing, and axle sleeve is made by Cuprum alloy.Axle sleeve floats and is arranged between tappet pulley and pulley spindle, and the inner cylindrical surface of the external cylindrical surface of axle sleeve and tappet pulley adopts little Spielpassung, and during work, tappet pulley will rotate around pulley spindle, and axle sleeve is as the sliding bearing between them.Lubricating system between axle sleeve and tappet pulley, pulley spindle is mainly the selflubricating of material, axle sleeve Cuprum alloy and adopts oil lubrication.
Fig. 1 shows the structural representation of the axle sleeve 10 of prior art.Prior art is used the axle sleeve shown in Fig. 1, because the matching gap between axle sleeve and tappet pulley is less, it is more difficult that lubricant oil enters its fitting surface, easily causes lack of lubrication, therefore the wearing and tearing of the external cylindrical surface of the axle sleeve of above prior art are very fast, thereby affect the reliability of engine operation.
Model utility content
The utility model object is to provide a kind of valve tappet device, can improve lubrication effect, reduces the wearing and tearing of the outer surface of axle sleeve, extends the working life of this valve tappet device.
The utility model provides a kind of valve tappet device, comprising: pulley spindle; Pulley, is sheathed on pulley spindle and with respect to pulley spindle and rotatably arranges; Axle sleeve, axle sleeve is sheathed on the periphery of pulley spindle and between pulley spindle and pulley, axle sleeve comprises sleeve and is arranged on the oil guide slot of the outer surface of sleeve.
Further, oil guide slot arranges along the axial direction spiral of axle sleeve.
Further, axle sleeve comprises mutually disjoint many oil guide slot.
Further, axle sleeve comprises many oil guide slot, and oil guide slot is along the circumferential extension of sleeve.
Further, the curve bath that the rectangle groove that oil guide slot is rectangular cross-section or cell wall are arc.
Further, valve tappet device also comprises tappet cylinder, the lower end of tappet cylinder is provided with positioning groove, on two side plates of positioning groove, arrange respectively with one heart and perpendicular to the radial direction through hole of the axis of tappet cylinder forming, the two ends of pulley spindle are installed on respectively in each radial direction through hole, and pulley is positioned at positioning groove.
Further, valve tappet device also comprises tappet guide cover, and tappet guide cover is located at the periphery of tappet cylinder and is slidably matched with tappet cylinder.
Further, the upper end of tappet cylinder is provided with tappet head mounting groove, and valve tappet device also comprises: tappet head, is positioned at tappet head mounting groove; Elastic element, between tappet head mounting groove and tappet head.
According to valve tappet device of the present utility model, owing to having axle sleeve, the outer surface of the sleeve of axle sleeve is provided with oil guide slot, can improve lubrication effect, minimizing, because of the wearing and tearing of the axle sleeve that between axle sleeve and pulley, lack of lubrication causes, extends the working life of valve tappet device.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of axle sleeve of the valve tappet device of prior art;
Fig. 2 is the sectional structure schematic diagram according to the utility model embodiment's valve tappet device;
Fig. 3 is the main TV structure schematic diagram according to the axle sleeve of the utility model embodiment's valve tappet device;
Fig. 4 is the sectional structure schematic diagram of Fig. 3.
Embodiment
Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.
As shown in Figure 2, the utility model embodiment's valve tappet device comprises pulley spindle 2, pulley 3, the axle sleeve 1 between pulley 3 and pulley spindle 2.
Wherein, pulley 3 is sheathed on pulley spindle 2 and with respect to pulley spindle 2 and rotatably arranges.Axle sleeve 1 is sheathed on the periphery of pulley spindle 2.Axle sleeve 1 comprises sleeve 11 and is arranged on the oil guide slot 12 of the outer surface of sleeve.By this, arrange, can improve lubrication effect, reduce the wearing and tearing of the outer surface of axle sleeve 1, extend the working life of axle sleeve 1.
As shown in Figure 3, in the present embodiment, preferably, oil guide slot 12 arranges along the axial direction spiral of sleeve 11.Axle sleeve 1 comprises mutually disjoint many oil guide slot 12.In this structure, not only lubricant oil can enter by the oil guide slot 12 of axle sleeve 1 between axle sleeve 1 and the matching surface of pulley 3 more easily, and oil guide slot 12 can also storage compartment lubricant oil, thereby enhancing lubrication effect, reduce the phase mutual friction between axle sleeve 1 and pulley 3 matching surfaces, the working life of prolongation axle sleeve 1.
In the alternate embodiment not providing at the utility model, axle sleeve 1 comprises many oil guide slot 12.Oil guide slot 12 is along the circumferential extension of sleeve 11.
As shown in Figure 4, in the present embodiment, preferably, the curve bath that oil guide slot 12 is arc for cell wall.Certainly, in the embodiment who does not provide, oil guide slot 12 can also be arranged to other shapes such as rectangle groove of rectangular cross-section.
As shown in Figure 3, further preferably, along the radius of the oil guide slot 12 of the axial direction spiral setting of sleeve 11, be 0.7mm, pitch 5mm.Certainly, in the embodiment who does not provide, the radius of the oil guide slot 12 of spiral setting is according to actual needs set to other size.
As shown in Figure 2, the utility model embodiment's valve tappet device also comprises tappet cylinder 4.Preferably, the lower end of tappet cylinder 4 is provided with positioning groove 41, arranges respectively with one heart and perpendicular to the radial direction through hole of the axis of tappet cylinder 4 forming on two side plates of positioning groove 41.The two ends of pulley spindle 2 are installed on respectively in the radial direction through hole of two side plates.Pulley 3 is positioned at positioning groove 41, and pulley 3 is sheathed on pulley spindle 2 and with respect to pulley spindle 2 and rotatably arranges.
As shown in Figure 2, in the present embodiment, valve tappet device also comprises tappet guide cover 5.Tappet guide cover 5 is located at the periphery of tappet cylinder 4 and is slidably matched with tappet cylinder 4.
As shown in Figure 2, in embodiment of the present utility model, valve tappet device also comprises elastic element 6 and tappet head 7.The upper end of tappet cylinder 4 arranges tappet head mounting groove.Tappet head mounting groove is used for placing tappet head 7, can effectively increase the area of contact of tappet head 7 and tappet cylinder 4.Tappet head 7 has spring fitting groove.
In the present embodiment, elastic element 6 is in particular Compress Spring.Compress Spring is between tappet head mounting groove and tappet head 7.The spring fitting groove butt of one end of Compress Spring and tappet head 7, the tappet head mounting groove butt of the other end of Compress Spring and tappet cylinder.
The utility model embodiment's valve tappet device is applied in piston engine, when engine operation, cam disk in air distribution gear starts to rotate, pulley in valve tappet device contacts and rolls on cam type surface with the cam type surface of cam disk, cam disk drives valve tappet device to do straight reciprocating motion, the other end of valve tappet device is connected with valve guide bushing simultaneously, by valve guide bushing and corresponding part, drive valve opening and close, the motion of fitting piston, inputs mixed gas cylinder and waste gas is discharged to cylinder simultaneously.In this course, must guarantee that the pulley in valve tappet device rotates flexibly, just can guarantee the reliability of engine operation.
From above description, can find out, embodiment of the present utility model has realized following technique effect: owing to having the axle sleeve that comprises sleeve, the outer surface of sleeve is provided with oil guide slot, therefore can improve lubrication effect, the wearing and tearing of the sleeve outer circle cylinder that minimizing causes because of lack of lubrication between axle sleeve and pulley, extend the working life of axle sleeve, thereby improve the performance of valve tappet device.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (8)
1. a valve tappet device, is characterized in that, comprising:
Pulley spindle (2);
Pulley (3), is sheathed on described pulley spindle (2) above and rotatably arranges with respect to described pulley spindle (2);
Axle sleeve (1), described axle sleeve (1) be sheathed on the periphery of described pulley spindle (2) and be positioned at described pulley spindle (2) and described pulley (3) between, described axle sleeve (1) comprises sleeve (11) and is arranged on the oil guide slot (12) of the outer surface of described sleeve (11).
2. valve tappet device according to claim 1, is characterized in that, described oil guide slot (12) arranges along the axial direction spiral of described axle sleeve (1).
3. valve tappet device according to claim 2, is characterized in that, described axle sleeve (1) comprises mutually disjoint many described oil guide slot (12).
4. valve tappet device according to claim 1, is characterized in that, described axle sleeve (1) comprises many described oil guide slot (12), and described oil guide slot (12) is along the circumferential extension of described sleeve (11).
5. according to the valve tappet device described in any one in claim 1 to 4, it is characterized in that the curve bath that described oil guide slot (12) is arc for the rectangle groove of rectangular cross-section or cell wall.
6. according to the valve tappet device described in any one in claim 1 to 4, it is characterized in that, described valve tappet device also comprises tappet cylinder (4), the lower end of described tappet cylinder (4) is provided with positioning groove (41), on two side plates that form described positioning groove (41), arrange respectively with one heart and perpendicular to the radial direction through hole of the axis of described tappet cylinder (4), the two ends of described pulley spindle (2) are installed on respectively described in each in radial direction through hole, and described pulley (3) is positioned at described positioning groove (41).
7. valve tappet device according to claim 6, it is characterized in that, described valve tappet device also comprises tappet guide cover (5), and described tappet guide cover (5) is located at the periphery of described tappet cylinder (4) and is slidably matched with described tappet cylinder (4).
8. valve tappet device according to claim 6, is characterized in that, the upper end of described tappet cylinder (4) is provided with tappet head mounting groove, and described valve tappet device also comprises:
Tappet head (7), is positioned at described tappet head mounting groove;
Elastic element (6), is positioned between described tappet head mounting groove and described tappet head (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320550834.0U CN203463159U (en) | 2013-09-05 | 2013-09-05 | Valve tappet device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320550834.0U CN203463159U (en) | 2013-09-05 | 2013-09-05 | Valve tappet device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203463159U true CN203463159U (en) | 2014-03-05 |
Family
ID=50175531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320550834.0U Expired - Fee Related CN203463159U (en) | 2013-09-05 | 2013-09-05 | Valve tappet device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203463159U (en) |
-
2013
- 2013-09-05 CN CN201320550834.0U patent/CN203463159U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee after: China Hangfa South Industrial Co. Ltd. Address before: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee before: China Southern Airlines Industry (Group) Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20200905 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |