CN205918459U - Wear -resisting type machinery tappet - Google Patents
Wear -resisting type machinery tappet Download PDFInfo
- Publication number
- CN205918459U CN205918459U CN201620958470.3U CN201620958470U CN205918459U CN 205918459 U CN205918459 U CN 205918459U CN 201620958470 U CN201620958470 U CN 201620958470U CN 205918459 U CN205918459 U CN 205918459U
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- Prior art keywords
- boss
- tappet
- wear
- face
- utility
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- 238000000465 moulding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model provides a wear -resisting type machinery tappet, including the tappet body (1), the tappet body (1) be the barrel form, its inner chamber bottom fixed connection boss (2), boss working face (21) of boss (2) tip are outside for boss (2) protruding, the height that highly is greater than boss (2) both ends of the middle part of boss (2), boss working face (21) form the smooth curved surface structure. Preferably, boss working face (21) are banded face of arc or spherical face. The utility model discloses a machinery tappet can utilize the outside projecting portion's of boss tip the contacting area between boss and the valve stem that highly comes to avoid effectively to form the closed angle in normal working process to reduce the wearing and tearing of boss effectively, and be difficult for forming the pit on making the boss working face, made the life of mechanical tappet prolong effectively, had simple structure, the outstanding advantage of implementation cost low grade.
Description
Technical field
This utility model is related to a kind of mechanical tappets, especially relates to be applied to a kind of wear-resistant mechanical of automobile engine
Tappet.
Background technology
At present, automotive light weight technology technology is increasingly paid close attention to by automobile production producer, in the selection of valve tappet, machine
Tool tappet is favored by most of businessmans because its quality is little.
Under usual conditions, mechanical tappets are done pendular movement in vertical direction by after the rotation stress of cam in cylinder body,
Do clockwise rotation in the horizontal direction, in this work process, due to the work of the boss end in mechanical tappets simultaneously
Making face is planar structure so that the contact site between valve stem and boss easily forms sharp wedge angle.Through long-time
After work, the work surface of described boss end is easy to form pit because of serious wear, and, convex in mechanical tappets
On the work surface of platform formed pit after, be also unfavorable for lubricating oil well into, thus having increased the abrasion of parts further,
Reduce the service life of mechanical tappets.
Utility model content
The technical problems to be solved in the utility model is: the problem existing for prior art, provides a kind of wear-resisting type machine
Tool tappet, on the premise of ensureing that it uses function, effectively improves the service life of mechanical tappets.
The technical problems to be solved in the utility model employs the following technical solutions to realize: a kind of wear-resistant mechanical tappet,
Including tappet body, described tappet body is in cylinder-shaped, and its intracavity bottom is fixedly connected boss, the boss work surface of described boss end
With respect to boss outwardly, the height of the middle part of described boss is more than the height at boss both ends, described boss work
Face forms smooth surface structure.
Preferably, described boss work surface is arc banding face.
Preferably, described boss work surface is spherical.
Preferably, described boss is cylindrical structure.
Preferably, it is to be formed a fixed connection in integrated molding mode between described boss and tappet body.
Compared with prior art, the beneficial effects of the utility model are: convex due to the boss end in tappet intracoelomic cavity
Platform work surface is with respect to boss outwardly, and the height of boss middle part is more than the height at boss both ends, and boss work
Make face and form smooth surface structure, be not only simple in structure, implement easily, and in mechanical tappets course of normal operation, permissible
Form point using the contact site that the height of the outwardly part of boss end is effectively prevented between boss and valve stem
Angle, thus significantly reducing the abrasion of boss, and making to be difficult on boss work surface to form pit, therefore, effectively extending
The service life of mechanical tappets.
Brief description
Fig. 1 is a kind of structure chart of this utility model wear-resistant mechanical tappet.
Fig. 2 be Fig. 1 shown in a kind of wear-resistant mechanical tappet in cylinder body operating diagram.
Fig. 3 is the partial enlarged drawing at a in Fig. 2.
In figure component labelling title: 1- tappet body, 2- boss, 3- cylinder body, 4- cam, 5- valve stem, 21- boss works
Face.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with the accompanying drawings and specifically
Embodiment is described in detail to this utility model.It should be appreciated that specific embodiment described herein is only in order to explain this
Utility model, is not used to limit this utility model.
A kind of wear-resistant mechanical tappet as shown in Figure 1, including tappet body 1, described tappet body 1 is in cylinder-shaped, in it
Bottom of chamber portion is fixedly connected boss 2, the boss work surface 21 of described boss 2 end with respect to boss 2 outwardly, described boss 2
Middle part height be more than boss 2 both ends height, and described boss work surface 21 formed smooth surface structure.Preferably
Ground, described boss work surface 21 can be arc banding face or spherical, is more easily processed into using spherical
Type, and improve working (machining) efficiency, reduce processing cost.
Above-mentioned wear-resistant mechanical tappet and cylinder body, valve stem cooperate work, and its work process is as shown in Fig. 2 institute
The tappet body 1 stated is arranged in cylinder body 3 inner chamber, and is cooperated with valve stem 5 by boss 2, and the rotary motion by cam 4 is
Tappet body 1 provides power, and described tappet body 1 does pendular movement in the vertical direction in cylinder body 3, and in the horizontal direction
Rotate.Boss work surface 21 due to boss 2 end in tappet body 1 inner chamber is with respect to boss 2 outwardly, convex
The height of platform 2 middle part is more than the height at boss 2 both ends, and boss work surface 21 forms smooth surface structure, therefore,
In mechanical tappets course of normal operation, it is possible to use the height of the outwardly part of boss 2 end is being effectively prevented from boss 2
Contact site and valve stem 5 between forms wedge angle, as shown in figure 3, wearing and tearing such that it is able to be effectively reduced the motion of boss 2,
And make to be difficult on boss work surface 21 to form pit, furthermore it is also possible to increase contact site between boss 2 end face and valve stem 5
Position gap, with ensure lubricating oil well into, further mitigate parts motion abrasion, make the use of mechanical tappets
Life-span is extended effectively.
In above-mentioned wear-resistant mechanical tappet, described boss 2 can be designed to cylindrical structure, and, described
Formed a fixed connection in integrated molding mode between boss 2 and tappet body 1, using such structure design, not only processing is held
Easily, implementation cost is lower, but also can ensure that the bonding strength between boss 2 and tappet body 1, and then guarantees mechanical tappets
Working life and functional reliability.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model it should refer to
Go out, all any modification, equivalent and improvement made within spirit of the present utility model and principle etc., all should comprise
Within protection domain of the present utility model.
Claims (5)
1. a kind of wear-resistant mechanical tappet, including tappet body (1), described tappet body (1) is in cylinder-shaped, and its intracavity bottom is fixed
Connect boss (2) it is characterised in that: the boss work surface (21) of described boss (2) end with respect to boss (2) outwardly,
The height of the middle part of described boss (2) is more than the height at boss (2) both ends, and described boss work surface (21) forms smooth
Curved-surface structure.
2. a kind of wear-resistant mechanical tappet according to claim 1 it is characterised in that: described boss work surface (21) is
Arc banding face.
3. a kind of wear-resistant mechanical tappet according to claim 1 it is characterised in that: described boss work surface (21) is
Spherical.
4. a kind of wear-resistant mechanical tappet according to any one of claim 1-3 it is characterised in that: described boss (2)
It is cylindrical structure.
5. a kind of wear-resistant mechanical tappet according to claim 4 it is characterised in that: described boss (2) and tappet body
(1) it is to be formed a fixed connection in integrated molding mode between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620958470.3U CN205918459U (en) | 2016-08-26 | 2016-08-26 | Wear -resisting type machinery tappet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620958470.3U CN205918459U (en) | 2016-08-26 | 2016-08-26 | Wear -resisting type machinery tappet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205918459U true CN205918459U (en) | 2017-02-01 |
Family
ID=57868637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620958470.3U Active CN205918459U (en) | 2016-08-26 | 2016-08-26 | Wear -resisting type machinery tappet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205918459U (en) |
-
2016
- 2016-08-26 CN CN201620958470.3U patent/CN205918459U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 621000 No. 268, Banqiao street, Fucheng District, Mianyang City, Sichuan Province Patentee after: Mianyang Fulin Jinggong Co.,Ltd. Address before: 621000 No. 268, Banqiao street, Fucheng District, Mianyang City, Sichuan Province Patentee before: MIANYANG FULIN PRECISION MACHINING Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP03 | Change of name, title or address |
Address after: 621000 No. 268, Banqiao street, Fucheng District, Mianyang City, Sichuan Province Patentee after: Fulin Precision Co.,Ltd. Country or region after: China Address before: 621000 No. 268, Banqiao street, Fucheng District, Mianyang City, Sichuan Province Patentee before: Mianyang Fulin Jinggong Co.,Ltd. Country or region before: China |