CN209724555U - A kind of novel high pressure oil pump tappet - Google Patents
A kind of novel high pressure oil pump tappet Download PDFInfo
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- CN209724555U CN209724555U CN201920522940.5U CN201920522940U CN209724555U CN 209724555 U CN209724555 U CN 209724555U CN 201920522940 U CN201920522940 U CN 201920522940U CN 209724555 U CN209724555 U CN 209724555U
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- support plate
- oil pump
- tappet
- pressure oil
- high pressure
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Abstract
The utility model discloses a kind of novel high pressure oil pump tappets, are related to engine apparatus technical field, including tappet body, support plate and bearing assembly；The bearing assembly is fixedly mounted on tappet body, and support plate is located at the lower section of support component, and the inner wall of support plate and tappet is fixed；It is additionally provided with stop pin in the support plate, and is also provided with anti-rotating hole on tappet body, stop pin is supported in anti-rotating hole.The utility model reduces an individual components relative to existing oil pump tappet, to eliminate all manufacturing procedures and assembly process of individually processing stop pin, reduces processing cost, improves production efficiency；Using stamping forming mode, efficient quick production is realized；Meanwhile the utility model, in process to needing to carry out punch process, process is few, and high-efficient, volume production is faster.
Description
Technical field
The utility model relates to engine apparatus technical fields, in particular to a kind of novel high pressure oil pump tappet.
Background technique
High-pressure oil pump tappet is for in-cylinder direct fuel-injection engine, and high-pressure oil pump tappet is mounted on engine cylinder cover
In driving cam and fuel feed pump plunger between, the driving cam of engine is pressed on the bearing of oil pump tappet, and fuel feed pump plunger is withstood on
In the support plate of oil pump tappet.Its effect is that lift shift conversion when cam rotation will be driven to rise at oil pump tappet straight line to be in
Then movement drives fuel feed pump plunger to carry out straight reciprocating motion, reach oil pump and generate high pressure, thus the combustion that will enter hyperbaric chamber
Oil is directly injected in combustion chamber by the accurate control fuel-injection valve for high-pressure of engine computer, is allowed to be atomized completely, reaches abundant
Combustion efficiency.
During the work time, the support plate main function in high-pressure oil pump tappet is transmitting pressure, because oil pump tappet is straight
The power that line movement generates is to connect to pass to high-pressure oil pump with fuel feed pump plunger by support plate, so that oil pump be made to generate high pressure.
Existing high-pressure oil pump tappet is mainly assembled by tappet body, stop pin, support plate and bearing assembly, components
Fractionation excessively refines, and manufacturing procedure is more, improves processing cost height；The size of high-pressure oil pump tappet itself is small, precision is high, processing
Difficulty is big, and assembly process is more, and product quality is made to be difficult to obtain guarantee, and scrappage increases significantly.
Summary of the invention
The purpose of this utility model is to provide a kind of novel high pressure oil pump tappets, to solve the above problems.
To realize the utility model aim, the technical solution of use are as follows: a kind of novel high pressure oil pump tappet, including tappet
Body, support plate and bearing assembly；The bearing assembly is fixedly mounted on tappet body, and support plate is located under support component
The inner wall of side, support plate and tappet is fixed；It is additionally provided with stop pin in the support plate, and is also provided with anti-rotation on tappet body
Hole, stop pin are supported in anti-rotating hole.
Further, the height of the anti-rotating hole is greater than the height of stop pin.
Further, the stop pin and support plate are integrated setting.
Further, has the mounting surface there are two symmetry arrangement on the tappet body, the both ends of bearing assembly are fixed respectively
It is mounted on two mounting surfaces.
Further, the mounting surface is in inner concavity, and mounting surface is integrally formed.
Further, the outer profile of the mounting surface and the outer profile of tappet body smoothly transit, and the Internal periphery of mounting surface is convex
For the Internal periphery of tappet body.
Further, two elastic notches are also provided on the tappet body, and two elastic notches are located at installation
The lower section in face.
Further, the horizontal sextant angle of the mounting surface and anti-rotating hole is 90 degree.
Further, round boss is additionally provided on the lower surface of the support plate, and the center of circle of round boss is located at branch
The center of fagging.
Further, the bearing assembly includes pin shaft and the idler wheel that rotation is set on pin shaft, and the both ends of pin shaft are divided
It is not fixedly mounted on two mounting surfaces.
The utility model has the beneficial effects that
Stop pin is set up directly in support plate by the utility model, makes the utility model relative to existing oil pump tappet
Reduce an individual components, to eliminate all manufacturing procedures and assembly process of individually processing stop pin, reduces
Processing cost, improves production efficiency；Using stamping forming mode, efficient quick production is realized；Meanwhile the utility model
In process to needing to carry out punch process, process is few, and high-efficient, volume production is faster.
Detailed description of the invention
Fig. 1 is the structure chart of novel high pressure oil pump tappet provided by the utility model；
Fig. 2 is the cross-sectional view of A-A in Fig. 1.
Label and corresponding parts title in attached drawing:
1, tappet body, 2, support plate, 3, bearing assembly, 4, stop pin, 5, anti-rotating hole, 6, mounting surface, 7, elastic notch, 8,
Round boss；
31, pin shaft, 32, idler wheel.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing, to this reality
With novel further description.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than complete
The embodiment in portion.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Every other embodiment obtained is put, is fallen within the protection scope of the utility model.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；Of course, can also be mechanical connection, it is also possible to be electrically connected；In addition, it can also be and be connected directly, be also possible to
Indirectly connected through an intermediary, or it can be connection inside two elements.For those of ordinary skill in the art and
Speech, can understand the concrete meaning of above-mentioned term in the present invention as the case may be.
A kind of novel high pressure oil pump tappet provided by the utility model shown by Fig. 1, Fig. 2, including tappet body 1, support
Plate 2 and bearing assembly 3；The bearing assembly 3 is fixedly mounted on tappet body 1, and support plate 2 is located at the lower section of support component,
Support plate 2 and the inner wall of tappet are fixed；It is additionally provided with stop pin 4 in the support plate 2, and is also provided with anti-rotation on tappet body 1
Hole 5, stop pin 4 are supported in anti-rotating hole 5.
The tappet body 1 be it is cylinder-shaped, support plate 2, bearing assembly 3 are respectively positioned in tappet body 1, and support plate 2 is located at axis
The lower section of bearing assembly 3；The central axis of the bearing assembly 3 and the central axis upright of tappet body 1, and bearing assembly 3 is most
High point is higher than the highest point of tappet body 1, and bearing assembly 3 can be rotated on tappet body 1；The middle part of the support plate 2 is in circle
Arcuation matches the middle part of support plate 2 and the periphery of bearing assembly 3, bearing assembly 3 is effectively prevent to cause support plate 2
Abrasion, specifically, the periphery clearance fit at the middle part of support plate 2 and bearing assembly 3.
The support plate 2 is fixed by the inner wall of force assemblage and tappet body 1, realizes the fixed installation to support plate 2；Tool
Body, a clamping wall is arranged at the edge of support plate 2, by support plate 2 in one press fitting slot of punching press on the inner wall of tappet body 1
On the pressure of clamping wall be fitted in press fitting slot, to realize fixed installation to support plate 2；The clamping wall and support plate 2
Integrated molding setting.The stop pin 4 is located at the opposite sides of support plate 2 with clamping wall；The anti-rotating hole 5 is logical
Hole, the shape of anti-rotating hole 5 and the shape of stop pin 4 cooperate, and stop pin 4 extends through anti-rotating hole 5 to outside tappet body 1, thus
It is supported on stop pin 4 in anti-rotating hole 5, the other end of support plate 2 is made to be supported, the fixed of support plate 2 is pacified to realize
Dress.
By the way that stop pin 4 to be set up directly in support plate 2, lack oil pump tappet in process of production to stop pin 4
Independent processing, and make oil pump tappet in assembling process, lacked the independent assembly to stop pin 4, turned support plate 2
Timing is the assembly realized to stop pin 4, reduces installation step, keeps the volume production of oil pump tappet more efficient.
The height of the anti-rotating hole 5 is greater than the height of stop pin 4, and the width gaps of the width of stop pin 4 and anti-rotating hole 5
Cooperation, can be carried out stop pin 4 in anti-rotating hole 5 and swings up and down, keep the assembly of support plate 2 more convenient, make the dress of support plate 2
With more efficient.The stop pin 4 is integrated setting with support plate 2, not only makes structure between stop pin 4 and support plate 2 more
Add it is firm, meanwhile, make support plate 2 that can produce stop pin 4 when being made, make simpler, finally make entire oil
The processing efficiency of pump tappet greatly improves.
Has the mounting surface 6 there are two symmetry arrangement on the tappet body 1, the both ends of bearing assembly 3 are respectively and fixedly installed to
On two mounting surfaces 6；The mounting surface 6 is extrusion forming, and two mounting surfaces 6 are along the center line symmetry arrangement of tappet body 1；Two
Offer axis hole on a mounting surface 6, the both ends of bearing assembly 3 respectively by force in two axis holes, and through axis hole to
Extend outside tappet body 1；The both ends of bearing assembly 3 fall off in order to prevent, and one can be arranged in the extension at the both ends of bearing assembly 3
Stop member is limited, and limiting stop member can be cyclic annular or first sheet, when it is cyclic annular for limiting stop member, the directly fixation of limit stop member is arranged
On two elongated ends of bearing assembly 3, when limiting stop member is disc-shaped, two limit stop members are welded on two bearing assemblies
On 3 two end faces.
The mounting surface 6 be in inner concavity, mounting surface 6 be it is integrally formed, keep the processing of mounting surface 6 more convenient, and make axis
The more convenient axis hole processed on mounting surface 6 for installing bearing assembly 3 before the mounting of bearing assembly 3, makes bearing assembly 3 exist
After installation, the both ends of bearing assembly 3 can be with the flush with outer surface of tappet body 1, and making bearing assembly 3, stability is more preferable after mounting.
The outer profile of the outer profile and tappet body 1 of the mounting surface 6 smoothly transits, and the Internal periphery of mounting surface 6 protrudes from very
The Internal periphery of cylinder 1 is equivalent to the part that 6 thickness of mounting surface exceeds and is located at 1 inside of tappet body；The mounting surface 6 is without additional
Bending structure, can effectively mitigate the weight of guide sleeve, and smoothly transit its internal stress transmitting it is more continuous, ensure that
Its structural strength.
Two elastic notches 7 are also provided on the tappet body 1, and two elastic notches 7 are located under mounting surface 6
Side, prevents mounting surface 6 in punch forming, and the junction of mounting surface 6 and tappet body 1 is broken, and ensure that the processing of mounting surface 6,
It impacts mounting surface 6 not to tappet body 1 in process, ensure that the quality of tappet body 1.
The horizontal sextant angle of the mounting surface 6 and anti-rotating hole 5 is 90 degree, facilitates matching between support plate 2 and bearing assembly 3
It closes, while preventing from causing tappet body 1 to rupture in use process because anti-rotating hole 5 and elastic notch 7 are close, ensure that this is practical new
The service life of type, and guarantee the arriving for quality of the utility model.
Round boss 8 is additionally provided on the lower surface of the support plate 2, and the center of circle of round boss 8 is located at support plate 2
Center；The round boss 8 makes round boss 8 and 2 overall structure of support plate by punch forming；It is round convex by setting
Platform 8 makes the utility model that can play the guiding role in use to the upper and lower movement of oil pump tappet, prevents oil pump tappet all
To rotation.The bearing assembly 3 includes pin shaft 31 and the idler wheel 32 that rotation is set on pin shaft 31, and the both ends of pin shaft 31 are distinguished
It is fixedly mounted on two mounting surfaces 6, during the installation process, the both ends of pin shaft 31 extend through two mounting plates and extend outwardly,
And idler wheel 32 is mounted on pin shaft 31, and is located in tappet body 1；When bearing assembly 3 has limit stop member, two limit stop members
It is located at two elongated ends of pin shaft 31.
Finally, it should be noted that the above various embodiments is only the preferred embodiment of the utility model to illustrate that this is practical
Novel technical solution, rather than its limitations, when the scope of the patents for being less limitation the utility model；Although referring to aforementioned each reality
Example is applied the utility model is described in detail, those skilled in the art should understand that: it still can be to preceding
It states technical solution documented by each embodiment to modify, or some or all of the technical features is equally replaced
It changes；And these are modified or replaceed, various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution
Range；In addition, by the technical solution of the utility model it is direct or indirect be used in other related technical areas, similarly
Including in the scope of patent protection of the utility model.
Claims (10)
1. a kind of novel high pressure oil pump tappet, which is characterized in that including tappet body (1), support plate (2) and bearing assembly (3)；Institute
State bearing assembly (3) to be fixedly mounted on tappet body (1), and support plate (2) is located at the lower section of support component, support plate (2) with
The inner wall of tappet is fixed；It is additionally provided with stop pin (4) on the support plate (2), and is also provided with anti-rotating hole on tappet body (1)
(5), stop pin (4) is supported in anti-rotating hole (5).
2. novel high pressure oil pump tappet according to claim 1, which is characterized in that the height of the anti-rotating hole (5) is greater than
The height of stop pin (4).
3. novel high pressure oil pump tappet according to claim 1, which is characterized in that the stop pin (4) and support plate (2)
It is integrated setting.
4. novel high pressure oil pump tappet according to claim 1, which is characterized in that on the tappet body (1) there are two tools
The mounting surface (6) of symmetry arrangement, the both ends of bearing assembly (3) are respectively and fixedly installed on two mounting surfaces (6).
5. novel high pressure oil pump tappet according to claim 4, which is characterized in that the mounting surface (6) is in inner concavity, peace
Dress face (6) is integrally formed.
6. novel high pressure oil pump tappet according to claim 5, which is characterized in that the outer profile of the mounting surface (6) with
The outer profile of tappet body (1) smoothly transits, and the Internal periphery of mounting surface (6) protrudes from the Internal periphery of tappet body (1).
7. novel high pressure oil pump tappet according to claim 5, which is characterized in that be also provided on the tappet body (1)
Two elastic notches (7), and two elastic notches (7) are located at the lower section of mounting surface (6).
8. novel high pressure oil pump tappet according to claim 5, which is characterized in that the mounting surface (6) and anti-rotating hole (5)
Horizontal sextant angle be 90 degree.
9. novel high pressure oil pump tappet according to claim 1, which is characterized in that on the lower surface of the support plate (2)
It is additionally provided with round boss (8), and the center of circle of round boss (8) is located at the center of support plate (2).
10. novel high pressure oil pump tappet according to claim 1, which is characterized in that the bearing assembly (3) includes pin shaft
(31) and rotation is set in the idler wheel (32) on pin shaft (31), and the both ends of pin shaft (31) are respectively and fixedly installed to two mounting surfaces
(6) on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920522940.5U CN209724555U (en) | 2019-04-17 | 2019-04-17 | A kind of novel high pressure oil pump tappet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920522940.5U CN209724555U (en) | 2019-04-17 | 2019-04-17 | A kind of novel high pressure oil pump tappet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209724555U true CN209724555U (en) | 2019-12-03 |
Family
ID=68691934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920522940.5U Active CN209724555U (en) | 2019-04-17 | 2019-04-17 | A kind of novel high pressure oil pump tappet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209724555U (en) |
-
2019
- 2019-04-17 CN CN201920522940.5U patent/CN209724555U/en active Active
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