CN205908326U - Longe -lived hydraulic tappet for automobile engine of low friction - Google Patents
Longe -lived hydraulic tappet for automobile engine of low friction Download PDFInfo
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- CN205908326U CN205908326U CN201620896604.3U CN201620896604U CN205908326U CN 205908326 U CN205908326 U CN 205908326U CN 201620896604 U CN201620896604 U CN 201620896604U CN 205908326 U CN205908326 U CN 205908326U
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- tappet
- ball valve
- hydraulic
- plunger
- cylinder cap
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Abstract
The utility model discloses an automobile the hydraulic tappet technical field's of engine longe -lived hydraulic tappet for automobile engine of low friction, including the cylinder cap, the left side inner chamber of cylinder cap is provided with the cylinder cap oil duct, the right -hand member of cylinder cap oil duct is provided with the metering rod hole, the centre of cylinder cap is provided with the tappet body, both ends are provided with oblique oilhole about the tappet body, the inner wall of oilhole is provided with the low pressure oil pocket to one side, the inner chamber top of the tappet body is provided with key shape groove, the utility model discloses a to one side the oilhole gets into the low pressure oil pocket with hydraulic oil, and the hydraulic oil of low pressure oil pocket passes through key shape groove and flows into high -pressure oil pocket, has remedied the clearance space, and hydraulic oil gets into cylinder cap, plunger, ball valve, pneumatic cylinder, and the friction that has significantly reduced has increased life -span of hydraulic tappet, and on the counterpoise spring pressed the ball valve plunger, the counterpoise spring can also make tappet body top keep accurate with the cam profile line and contact to eliminate valve clearance.
Description
Technical field
The utility model is related to the hydraulic tappet technical field of automobile engine, specially a kind of vapour of low friction life-span length
Car engine hydraulic tappet.
Background technology
It is used on existing traditional engine between the adjustment shell fragment generally adopting on cam and tappet on valve actuating mechanism
Gap coordinate, to control engine intake simply to close, expanded with heat and contract with cold due to engine due to, valve clearance is not easy
Control, after work a period of time, due to the rubbing action between cam and adjustment shell fragment, adjustment shell fragment can be made thinning, therefore
Adjustment shell fragment must be replaced to eliminate fault, and in the course of the work, because tappet can be with the rotary motion of camshaft
Move up and down in tappet in the hole, therefore in motion process, due to being impacted by inertia force or rocking arm, adjust
Loosening until coming off may occur in whole shell fragment, and gently then leads to hydraulic tappet operational failure, and the serious part that may result in damages
Bad.Existing hydraulic tappet, because liquid is provided in the bottommost of tappet, in the slip each other of plunger and lifter body
In, the fluid lubricating cannot be used for, the frictional force therefore between plunger and lifter body is larger so that plunger heating is severe,
Serious wear, service life is low, for example a kind of hydraulic tappet of Chinese Patent Application No. 201320329593.7, including lifter body and
Plunger, described lifter body inwall is provided with annular groove, the corresponding position of the annular groove on lifter body inwall setting on described plunger
There is groove；It is provided with circlip in the cavity being formed between the groove on annular groove and plunger on lifter body inwall, described
Plunger is provided with sealing ring in the end junction being connected with lifter body, is provided with oilhole, on oilhole at the corresponding annular groove of lifter body
It is provided with oil cap, realize simple and reasonable, easy to use, there is high lubricating effect, the feature of long service life, based on this,
The utility model designs a kind of automobile engine hydraulic tappet of low friction life-span length, to solve the above problems.
Utility model content
The purpose of this utility model is to provide a kind of automobile engine hydraulic tappet of low friction life-span length, to solve
Frictional force between the plunger proposing in above-mentioned background technology and lifter body is larger so that plunger heating is severe, and serious wear makes
With the problem that the life-span is low.
For achieving the above object, the utility model provides a kind of following technical scheme: car engine of low friction life-span length
Machine hydraulic tappet, including cylinder cap, the left side inner chamber of described cylinder cap is provided with oil cylinder head way, the right-hand member setting of described oil cylinder head way
There is gauge hatch, the middle setting of described cylinder cap has tappet body, and the left and right two ends of described tappet body are provided with inclined oil hole of air, described oblique oil
The inwall in hole is provided with low pressure oil pocket, and the inner cavity top of described tappet body is provided with key-shaped groove, the bottom setting of described key-shaped groove
There is plunger, the outer wall of described plunger is provided with hydraulic cylinder, and the outer wall of described hydraulic cylinder is provided with supporter, outside described supporter
End is fixed on the inner chamber of tappet body, and the bottom of described plunger is provided with ball valve cage, and the inner chamber of described ball valve cage is provided with ball valve,
Described ball valve is arranged on the bottom of plunger, and the bottom of described ball valve cage is provided with high-voltage oil cavity, and the bottom of described high-voltage oil cavity sets
Put the intracavity bottom in hydraulic cylinder, the bead bottom of described ball valve cage is provided with counterbalance spring, and the bottom of described counterbalance spring sets
Put the intracavity bottom in hydraulic cylinder, the bottom of described hydraulic cylinder is provided with valve stem.
Preferably, the bottom inner chamber of described plunger is provided with the ball recess matching with ball valve.
Preferably, described counterbalance spring quantity has two groups, and counterbalance spring described in two groups is uniformly arranged on the bottom of ball valve cage.
Preferably, described supporter is bowl-type, and described supporter is slided with hydraulic cylinder and fits.
Compared with prior art, the beneficial effects of the utility model are: hydraulic oil is entered by the utility model by inclined oil hole of air
Enter low pressure oil pocket, the hydraulic oil of low pressure oil pocket flows into high-voltage oil cavity by key-shaped groove, compensate for clearance space, and hydraulic oil enters cylinder
Lid, plunger, ball valve, hydraulic cylinder, greatly reduce friction, increase the life-span of hydraulic tappet, and counterbalance spring is pressed against post ball valve
Beyond the Great Wall, counterbalance spring can also make tappet body top and cam profile keep exact contact, to eliminate valve clearance, works as ball valve
When being squeezed on plunger, tappet body can be divided into two oil pockets, top be low pressure oil pocket, bottom be high-voltage oil cavity, when ball valve from
When opening on plunger, then become a cavity, bowl-type has been arranged to by supporter, described supporter has been slided with hydraulic cylinder and fitted, protected
Demonstrate,prove the stability of hydraulic cylinder.
Brief description
Fig. 1 is the utility model structural representation.
In figure: 1 cylinder cap, 2 oil cylinder head way, 3 gauge hatch, 4 inclined oil hole of air, 5 tappet bodies, 6 low pressure oil pockets, 7 key-shaped grooves, 8 ball valves,
9 plungers, 10 hydraulic cylinders, 11 supporters, 12 counterbalance springs, 13 high-voltage oil cavities, 14 ball valve cage, 15 valve stems.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely description is it is clear that described embodiment is only a part of embodiment of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of making creative work
The every other embodiment being obtained, broadly falls into the scope of the utility model protection.
Refer to Fig. 1, the utility model provides a kind of a kind of technical scheme: automobile engine liquid of low friction life-span length
Pressure tappet, including cylinder cap 1, the left side inner chamber of described cylinder cap 1 is provided with oil cylinder head way 2, and the right-hand member of described oil cylinder head way 2 is provided with
Gauge hatch 3, the middle setting of described cylinder cap 1 has tappet body 5, and the left and right two ends of described tappet body 5 are provided with inclined oil hole of air 4, described
The inwall of inclined oil hole of air 4 is provided with low pressure oil pocket 6, and the inner cavity top of described tappet body 5 is provided with key-shaped groove 7, described key-shaped groove 7
Bottom is provided with plunger 9, and the outer wall of described plunger 9 is provided with hydraulic cylinder 10, and the outer wall of described hydraulic cylinder 10 is provided with supporter
11, the outer end of described supporter 11 is fixed on the inner chamber of tappet body 5, and the bottom of described plunger 9 is provided with ball valve cage 14, described
The inner chamber of ball valve cage 14 is provided with ball valve 8, and described ball valve 8 is arranged on the bottom of plunger 9, and the bottom of described ball valve cage 14 is provided with
High-voltage oil cavity 13, the bottom of described high-voltage oil cavity 13 is arranged on the intracavity bottom of hydraulic cylinder 10, the bead bottom of described ball valve cage 14
Portion is provided with counterbalance spring 12, and the bottom of described counterbalance spring 12 is arranged on the intracavity bottom of hydraulic cylinder 10, described hydraulic cylinder 10
Bottom be provided with valve stem 15.
Wherein, the bottom inner chamber of described plunger 9 is provided with the ball recess matching with ball valve 8, makes to be squeezed in when ball valve 8
During ball recess on plunger 9, tappet body 5 can be divided into two oil pockets, top is low pressure oil pocket 6, bottom is high-voltage oil cavity 13,
When ball valve 8 leaves the ball recess on plunger 9, then become a cavity, described counterbalance spring 12 quantity has two groups, two groups of institutes
State the bottom that counterbalance spring 12 is uniformly arranged on ball valve cage 14,12 ball valves 8 of counterbalance spring are pressed against on plunger 9, counterbalance spring 12
Tappet body 5 top and cam profile can also be made to keep exact contact, to eliminate valve clearance, described supporter 11 is bowl
Shape, described supporter 11 and hydraulic cylinder 10 slide and fits it is ensured that the stability moved of hydraulic cylinder 10.
Operation principle: the utility model passes through hydraulic oil and flows into gauge hatch 3 from oil cylinder head way 2, and hydraulic oil passes through inclined oil hole of air 4
Enter low pressure oil pocket 6, the hydraulic oil of low pressure oil pocket 6 flows into ball valve 8 top by key-shaped groove 7, when ball valve 8 is squeezed on plunger 9
When, tappet body 5 can be divided into two oil pockets, top is low pressure oil pocket 6, and bottom is high-voltage oil cavity 13, when ball valve 8 leaves plunger 9
When upper, then become a cavity, and work as cam rotation, when tappet body 5 and plunger 9 move down, the hydraulic oil in high-voltage oil cavity 13
Compressed, oil pressure raises, and adds the effect of counterbalance spring 12, ball valve 8 closes high-voltage oil cavity 13, can not press because liquid has
Contracting, whole valve stem 15 moves down, and promotes valve to open, and in valve expanded by heating, plunger 9 and hydraulic cylinder 10 are made axially opposing
Motion, the hydraulic oil in high-voltage oil cavity 13 can be clamp-oned low pressure oil pocket 6 in the gap through between hydraulic cylinder 10 and plunger 9, make use of this
Individual " elastic " clamp-oning low pressure oil pocket 6 compensate for the space in gap.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with multiple changes in the case of without departing from principle of the present utility model and spirit, repair
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of automobile engine hydraulic tappet of low friction life-span length, including cylinder cap (1) it is characterised in that: described cylinder cap
(1) left side inner chamber is provided with oil cylinder head way (2), and the right-hand member of described oil cylinder head way (2) is provided with gauge hatch (3), described cylinder cap
(1) middle setting has tappet body (5), and the left and right two ends of described tappet body (5) are provided with inclined oil hole of air (4), described inclined oil hole of air (4)
Inwall be provided with low pressure oil pocket (6), the inner cavity top of described tappet body (5) is provided with key-shaped groove (7), described key-shaped groove (7)
Bottom be provided with plunger (9), the outer wall of described plunger (9) is provided with hydraulic cylinder (10), and the outer wall of described hydraulic cylinder (10) sets
It is equipped with supporter (11), the outer end of described supporter (11) is fixed on the inner chamber of tappet body (5), the bottom of described plunger (9)
It is provided with ball valve cage (14), the inner chamber of described ball valve cage (14) is provided with ball valve (8), and described ball valve (8) is arranged on plunger (9)
Bottom, the bottom of described ball valve cage (14) is provided with high-voltage oil cavity (13), and the bottom of described high-voltage oil cavity (13) is arranged on hydraulic pressure
The intracavity bottom of cylinder (10), the bead bottom of described ball valve cage (14) is provided with counterbalance spring (12), described counterbalance spring (12)
Bottom be arranged on the intracavity bottom of hydraulic cylinder (10), the bottom of described hydraulic cylinder (10) is provided with valve stem (15).
2. a kind of low friction life-span length according to claim 1 automobile engine hydraulic tappet it is characterised in that: institute
The bottom inner chamber stating plunger (9) is provided with the ball recess matching with ball valve (8).
3. a kind of low friction life-span length according to claim 1 automobile engine hydraulic tappet it is characterised in that: institute
Stating counterbalance spring (12) quantity has two groups, and described in two groups, counterbalance spring (12) is uniformly arranged on the bottom of ball valve cage (14).
4. a kind of low friction life-span length according to claim 1 automobile engine hydraulic tappet it is characterised in that: institute
Stating supporter (11) is bowl-type, and described supporter (11) is slided with hydraulic cylinder (10) and fitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620896604.3U CN205908326U (en) | 2016-08-17 | 2016-08-17 | Longe -lived hydraulic tappet for automobile engine of low friction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620896604.3U CN205908326U (en) | 2016-08-17 | 2016-08-17 | Longe -lived hydraulic tappet for automobile engine of low friction |
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| Publication Number | Publication Date |
|---|---|
| CN205908326U true CN205908326U (en) | 2017-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620896604.3U Active CN205908326U (en) | 2016-08-17 | 2016-08-17 | Longe -lived hydraulic tappet for automobile engine of low friction |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110998048A (en) * | 2017-07-19 | 2020-04-10 | 施耐德博士塑料工厂有限公司 | Locking device for a refueling or charging recess, and refueling or charging recess |
| CN116201620A (en) * | 2023-01-31 | 2023-06-02 | 重庆长安汽车股份有限公司 | Hydraulic tappet, engine and vehicle |
-
2016
- 2016-08-17 CN CN201620896604.3U patent/CN205908326U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110998048A (en) * | 2017-07-19 | 2020-04-10 | 施耐德博士塑料工厂有限公司 | Locking device for a refueling or charging recess, and refueling or charging recess |
| CN110998048B (en) * | 2017-07-19 | 2021-10-15 | 施耐德博士塑料工厂有限公司 | Locking device for a refueling or charging recess, and refueling or charging recess |
| CN116201620A (en) * | 2023-01-31 | 2023-06-02 | 重庆长安汽车股份有限公司 | Hydraulic tappet, engine and vehicle |
| CN116201620B (en) * | 2023-01-31 | 2024-05-17 | 重庆长安汽车股份有限公司 | Hydraulic tappet, engine and vehicle |
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| GR01 | Patent grant |