CN214221283U - Double-top type roller hydraulic tappet - Google Patents
Double-top type roller hydraulic tappet Download PDFInfo
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- CN214221283U CN214221283U CN202120222650.6U CN202120222650U CN214221283U CN 214221283 U CN214221283 U CN 214221283U CN 202120222650 U CN202120222650 U CN 202120222650U CN 214221283 U CN214221283 U CN 214221283U
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- hydraulic tappet
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- tappet
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Abstract
The utility model provides a two top formula gyro wheel hydraulic tappet belongs to the machine-building field. This structural design includes casing, hydraulic tappet and bearing, establishes two symmetry mounting holes in casing one end, and two symmetry oilholes are established to outer groove department, and the bearing mounting groove is established to the casing other end, and the assembly of hydraulic tappet is in the mounting hole, and the bearing assembly is at the bearing inslot. The symmetrical oil holes are arranged for lubricating the bearing and the hydraulic tappet and supplementing the engine oil pressure in the hydraulic tappet in time; the hydraulic tappet is assembled, so that the valve clearance can be automatically compensated by utilizing the unique performance of the hydraulic tappet, and the noise is reduced; the assembly bearing changes sliding friction into rolling friction, improves the wear resistance, reduces the friction coefficient and further ensures the use performance. The utility model discloses can assemble two hydraulic tappet simultaneously, realize opening simultaneously or close two valves of engine, rational utilization inside space makes its gyro wheel hydraulic tappet performance better more comprehensive.
Description
Technical Field
The patent of the utility model relates to a two top formula gyro wheel hydraulic tappet structural schemes belong to the technical field of machine-building.
Background
The roller hydraulic tappet is one of automobile engine valve tappet technologies, and has the main functions of opening or closing an engine valve and adjusting valve clearance, namely, force is transmitted to the hydraulic tappet through a cam shaft when an engine runs, so that the engine valve is opened and closed, and when the valve is in clearance, automatic compensation can be realized, and noise is reduced. The double-top roller hydraulic tappet provided with the two hydraulic tappets can automatically compensate the valve clearance when simultaneously opening or closing the two valves, the use number of the roller hydraulic tappets is reduced due to the fact that the function of the two traditional roller hydraulic tappets can be realized by one double-top roller hydraulic tappet, the weight of an engine is correspondingly reduced, and the roller hydraulic tappet is enabled to have market economy.
The existing roller hydraulic tappet structure can only open and close one valve, so that for a large-displacement engine, the using amount of the roller hydraulic tappet structure is increased, the weight of the engine is relatively increased, and the corresponding oil consumption is higher; the manufacturing cost is increased when the number of the roller hydraulic tappets assembled by the engine is increased, and the traditional roller hydraulic tappets are difficult to meet the use requirements along with the increasing requirements on energy conservation and emission reduction.
Disclosure of Invention
The utility model aims at providing a reasonable in design, simple structure, rational utilization inside space makes its gyro wheel hydraulic tappet performance better more comprehensive product design demand.
In order to achieve the above purpose, the utility model adopts the following technical proposal: the utility model provides a two top formula gyro wheel hydraulic tappet, includes casing (1), hydraulic tappet (2) and bearing (3), is equipped with two symmetry mounting holes in casing one end, and outer groove department is equipped with two symmetry oilholes, and the casing other end is equipped with the bearing mounting groove, and the hydraulic tappet assembly is in the mounting hole, and the bearing assembly can assemble two hydraulic tappet simultaneously at the bearing inslot, realizes opening simultaneously or closing two valves of engine, again can automatically regulated engine valve clearance.
Furthermore, the shell is provided with two symmetrical hydraulic tappet mounting holes, two hydraulic tappets can be assembled, the depth difference of the two mounting holes is less than 0.02mm, the extending height of the assembled hydraulic tappet is 0.05mm, two valves of the engine can be opened or closed simultaneously, the clearance can be automatically compensated, and the sensitivity of the valve is higher; when the hydraulic tappet is assembled, one mounting hole can be selected at will for assembly, interchangeability of parts is achieved, and operation is simple.
Furthermore, the symmetrical oil holes are formed in the outer groove of the shell, engine oil can flow to the hydraulic tappet mounting hole through the oil holes in time under the pressure of the internal engine oil after the engine is started, the bearing and the hydraulic tappet are further lubricated, the friction coefficient is reduced, the service life is prolonged, the engine oil can also flow to the oil holes in the outer groove of the hydraulic tappet to supplement the internal engine oil pressure, the valve clearance is kept unchanged, and noise is reduced.
Furthermore, the bearings are convex bearings, the convex roller pins are arranged inside the bearings, sliding friction is changed into rolling friction, the wear resistance can be effectively improved, the lateral force on the tappet caused by friction is reduced, and noise is reduced. In addition, the convexity needle roller bearing can bear larger radial load, can compensate centering error, and has outstanding structural strength superiority under the impact radial load.
The utility model has the advantages that: the two air valves of the engine can be opened or closed simultaneously, the clearance can be automatically compensated, and the sensitivity of the air valves is improved; the assembled convexity bearing has large bearing capacity and can bear larger impact force, thereby ensuring the use performance.
Drawings
FIG. 1 is a sectional view of the structure of the present invention; FIG. 2 is a cross-sectional view of the bearing of the present invention; FIG. 3 is a sectional view of the housing structure of the present invention; fig. 4 is a sectional view of the hydraulic tappet structure of the present invention.
The labels in the figure are: 1-shell, 2-hydraulic tappet, 3-bearing, 4-mounting hole, 5-bearing groove and 6-oil hole;
Detailed Description
In order to clearly illustrate the technical features of the present solution, the following description of the present solution is made with reference to the accompanying drawings.
As shown in the attached drawing, the hydraulic tappet mainly comprises a shell (1), a hydraulic tappet (2), a bearing (3), a mounting hole (4), a bearing groove (5) and an oil hole (6). Two hydraulic tappets (2) are assembled in the mounting hole (4), the bearing (4) is assembled in the bearing groove (5), the oil hole (6) is positioned on the outer groove of the shell (1) and is communicated with the mounting hole (4), oil pressure formed inside the engine after the engine is started flows into the mounting hole quickly through the oil hole to lubricate the hydraulic tappets and the bearing, so that the friction coefficient is reduced, the service life of the product is prolonged, engine oil required by the internal pressure of the hydraulic tappets can be supplemented in time, and the normal work of the valve is ensured; the bearing contacts with the camshaft of the engine, the rotation through the camshaft drives the double-top type roller hydraulic tappet to work, and the hydraulic tappet contacts with the valve ejector rod of the engine, so that the opening or closing of the valve and the compensation of the valve clearance are realized.
The above description is intended to illustrate the present invention in more detail, and not to limit the present invention, and all modifications, equivalents, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (2)
1. The utility model provides a two top formula gyro wheel hydraulic tappet, includes casing (1), hydraulic tappet (2) and bearing (3), characterized by: the two symmetrical mounting holes are formed in one end of the shell, the two symmetrical oil holes are formed in the outer groove, the bearing mounting groove is formed in the other end of the shell, the hydraulic tappet is assembled in the mounting hole, the bearing is assembled in the bearing groove, two hydraulic tappets can be assembled at the same time, two valves of an engine can be opened or closed at the same time, the valve clearance can be automatically compensated, and noise is reduced.
2. The double-top roller hydraulic tappet according to claim 1, wherein: the bearing (3) adopts a convexity bearing, so that the bearing capacity of the bearing can be improved, and the service performance is further ensured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120222650.6U CN214221283U (en) | 2021-01-28 | 2021-01-28 | Double-top type roller hydraulic tappet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120222650.6U CN214221283U (en) | 2021-01-28 | 2021-01-28 | Double-top type roller hydraulic tappet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214221283U true CN214221283U (en) | 2021-09-17 |
Family
ID=77693379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120222650.6U Active CN214221283U (en) | 2021-01-28 | 2021-01-28 | Double-top type roller hydraulic tappet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214221283U (en) |
-
2021
- 2021-01-28 CN CN202120222650.6U patent/CN214221283U/en active Active
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