CN207245786U - A kind of two stroke engine - Google Patents
A kind of two stroke engine Download PDFInfo
- Publication number
- CN207245786U CN207245786U CN201721221085.1U CN201721221085U CN207245786U CN 207245786 U CN207245786 U CN 207245786U CN 201721221085 U CN201721221085 U CN 201721221085U CN 207245786 U CN207245786 U CN 207245786U
- Authority
- CN
- China
- Prior art keywords
- crankcase
- stroke engine
- worm screw
- lubricating oil
- bent axle
- 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.)
- Active
Links
Landscapes
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The utility model provides a kind of two stroke engine, belongs to technical field of engines.It solves the problems, such as that existing driving engine efficiency and lubricating efficiency are low.This two stroke engine includes crankcase, lubricating oil pump and inlet valve seat are connected with the lateral wall of crankcase, one end of lubricating oil pump is connected with oil inlet pipe, and one end of inlet valve seat is connected with carburetor, and inlet valve seat is connected with carburetor, one end of oil inlet pipe is connected with inlet valve seat, is equipped with bent axle in the crankcase, worm gear is connected with the pump shaft of lubricating oil pump, worm screw is arranged with bent axle, bent axle is connected with worm screw, and worm and wheel intermeshing, worm gear and worm gear are arranged in crankcase.This two stroke engine can improve the lubricating efficiency of two stroke engine.
Description
Technical field
The utility model belongs to technical field of engines, is related to a kind of two stroke engine.
Background technology
Two stroke engine during operation, it is necessary to be mutually mixed by machine oil and gasoline mixture body, and will be mixed
Gas after conjunction is sprayed into crankcase, is promoted piston to realize by spark ignitor again into cylinder compression by scavenging port and is started
The operating of machine, and, it is necessary to constantly add lubricating oil during engine start, but the lubricating oil ratio in artificial proportioning
Example is certain, and when high speed can cause insufficient lubrication, it may occur that the cylinder that rises such as seizes at the accident；Lubricating oil when small throttle low speed and idling
Again too many, burn bad easily knot carbon；The easy gum deposit of miscella, which blocks metering-orifice, makes gaseous mixture excessively dilute.So so that parts are badly damaged,
Shorten engine life and discharge severe engine power is again low.
For above-mentioned problem, people have developed more and more two stroke engines：
Such as Chinese patent application (number of patent application：96218401.2) disclose a kind of Lubricating device for two-stroke engine：
Wheel shaft including belt transmission, the shaft end of wheel shaft and one end of transmission shaft are affixed, and the other end of transmission shaft passes through the axis in axle sleeve
The pin joint piece interlocking having with lubricating oil pump is held, grease-box is connected with oil feeding pipe of oil pump, and by its flowline and inlet valve
Seat connection.
Although above-mentioned Lubricating device for two-stroke engine solves the problems, such as that engine lubrication is bad in certain degree,
But due to being the wheel shaft using belt transmission, even if being connected with grease-box on the oil inlet pipe of lubricating oil pump, make in long-term
During, or easily occur, the situation of belt slippage occurs so that the transmission accuracy of engine is relatively low, for lubricating not
The shortcomings that sufficient, existing two stroke engine be wheel shaft during operating, lack of lubrication, and use add grease-box,
So that the structure of whole engine is complex, and still not can completely improves the transmission accuracy of engine, and need continuous
Lubricating oil is added on wheel shaft, cause the control of whole operation complex, further reduce the transmission of engine
Efficiency and lubricating efficiency.
The content of the invention
The purpose of this utility model is that there are the above problem for existing technology, it is proposed that a kind of two stroke engine,
Technical problem to be solved in the utility model is how to improve the lubricating efficiency of two stroke engine.
The purpose of this utility model can be realized by following technical proposal：
A kind of two stroke engine, including crankcase, are connected with lubricating oil pump and intake valve on the lateral wall of the crankcase
Seat, one end of the lubricating oil pump are connected with oil inlet pipe, and one end of the inlet valve seat is connected with carburetor, and inlet valve seat and change
Oily device is connected, and one end of the oil inlet pipe is connected with inlet valve seat, and bent axle is equipped with the crankcase, it is characterised in that
Worm gear is connected with the pump shaft of the lubricating oil pump, worm screw is arranged with the bent axle, the bent axle is connected with worm screw, the worm screw
It is intermeshed with worm gear, the worm gear and worm gear are arranged in crankcase.
Operation principle：Worm screw drives worm gear movement so that machine oil pump startup so that oil in lubricating oil pump can from check valve into
Entering oil inlet pipe and flow into inlet valve seat, carburetor forms the gasoline mixture of certain air-fuel ratio after gasoline is mixed with air,
Gasoline mixture is imported into inlet valve seat, the machine oil in oil inlet pipe can carry out mixed merga pass inlet valve seat with gasoline mixture
Spray into crankcase, crankcase starts running, and carries out carrying out pump oil to lubricating oil pump using worm and worm wheel so that entirely operated
Journey is more stablized, and is not in the phenomenon appearance of skidding, also so that the total of engine is more compact, worm screw is straight
Connect and be arranged on bent axle, worm gear is arranged in lubricating oil pump, improve the transmission accuracy of whole engine, simultaneously because worm screw and
Worm gear is arranged in crankcase, during engine operation, there is lubricating oil in crankcase all the time, therefore not
Need additionally to add lubricating oil to carry out the lubrication to worm and worm wheel, improve the lubricating efficiency of two stroke engine.
In above-mentioned two stroke engine, the pump shaft is arranged in crankcase, and the pump shaft is located at the side of worm screw,
The axial line of the pump shaft is vertical with the axial line of worm screw.
The setting of the structure so that the setting of pump shaft more rationalizes, and the position of pump shaft does not influence worm and worm wheel
Rotation, the structure of whole engine is compacter, can further improve the precision of transmission, and the position of pump shaft is set,
Also the lubricating efficiency of engine can further be improved.
In above-mentioned two stroke engine, several pin holes are offered on the madial wall of the worm screw, on the bent axle
Equipped with locating rod, the worm screw is set on bent axle, and locating rod can be embedded in a pin hole.
Worm screw is set on bent axle, the locating rod of crankcase can be embedded in a pin hole at this time so that worm screw with
Realize and be connected between bent axle, ensure that worm screw can rotate together with bent axle, add the stability of engine, ensure that at the same time
The correct operation of engine, improves the transmission accuracy of engine.
In above-mentioned two stroke engine, the crankcase has mounting shell, and one end of the lubricating oil pump is arranged on peace
Fill on shell, the pump shaft is arranged in mounting shell.
The setting of the structure so that the setting of pump shaft and worm gear is more convenient so that the setting of pump shaft and worm gear is more
Stablize, during operation, be not in the situation of pump shaft abjection crankcase, ensure that the compact of whole engine structure,
And the transmission accuracy of engine is further improved, the lubricating oil facilitated in crankcase is flowed on worm and worm wheel, is carried
The high lubricating efficiency of engine.
In above-mentioned two stroke engine, the mounting shell is integrally formed with crankcase.
The setting of the structure so that the lubricating oil in crankcase will not overflow crankcase, while the setting of lubricating oil pump is more
The convenience added, the structure of engine are more firm.
In above-mentioned two stroke engine, the both ends of the mounting shell are respectively provided with erecting bed, are opened up on the erecting bed
There is mounting hole, the lubricating oil pump is equipped with mounting base, and the mounting base is equipped with the mounting hole being oppositely arranged with mounting hole, described
The end of fastener in mounting hole can pass through mounting hole and be fixed on erecting bed.
The setting of the structure so that lubricating oil pump more stable can be connected with mounting shell, and between lubricating oil pump and mounting shell
It is easy to connect, set relatively simple.
In above-mentioned two stroke engine, gasket is equipped between the erecting bed and mounting base.
The setting of the structure, can further prevent the outflow of lubrication oil in crankcase, also so that lubricating oil pump and mounting shell
Between connection it is more firm so that the transmission accuracy of engine is guaranteed.
In above-mentioned two stroke engine, sealing ring is arranged with the pump shaft, the sealing ring can be with mounting shell
Inner wall fits closely.
The setting of the structure, can further ensure that the lubricating oil in crankcase will not flow out, and improve the close of crankcase
Feng Xing.
Compared with prior art, this two stroke engine has the following advantages：
1st, by being provided with worm gear on the pump shaft of lubricating oil pump, worm screw is arranged on the bent axle of crankcase, avoids existing skill
The situation of belt slippage in art occurs, while causes the high transmission accuracy of whole engine using worm and worm wheel, further
So that the overall structure of engine is more compact.
2nd, worm gear and worm screw are arranged in crankcase, due to having lubricating oil in crankcase, it is not necessary to make in long-term
During worm and worm wheel are added with lubricating oil, and then during long-term use, the abrasion of worm and worm wheel is smaller, will not
There is the phenomenon that worm and worm wheel block during rotation, also enable the structure of whole engine more compact, and
Further improve the transmission accuracy of whole engine.
3rd, crankcase and mounting shell are integrally formed so that the structure of whole engine is compacter, also more stablizes, hair
The installation enhanced convenience of motivation.
Brief description of the drawings
Fig. 1 is the structure diagram of this two stroke engine.
Fig. 2 is the structure diagram that this two stroke engine does not install crankcase.
Fig. 3 is the structure diagram of crankcase in this two stroke engine.
Fig. 4 is the structure diagram in another direction of crankcase in this two stroke engine.
Fig. 5 is worm gear and the structure diagram after crankshaft installed in this two stroke engine.
In figure, 1, crankcase；11st, bent axle；12nd, locating rod；13rd, mounting shell；14th, erecting bed；15th, mounting hole；16th, step down
Chamber；17th, through hole；2nd, lubricating oil pump；21st, oil inlet pipe；22nd, mounting base；23rd, mounting hole；24th, pump shaft；25th, worm gear；3rd, inlet valve seat；
31st, carburetor；4th, worm screw；41st, pin hole；5th, fastener；6th, gasket；7th, sealing ring.
Embodiment
It is specific embodiment of the utility model and with reference to attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
As shown in Figure 1, this two stroke engine includes crankcase 1,2 He of lubricating oil pump is connected with the lateral wall of crankcase 1
Inlet valve seat 3.
Specifically, as shown in Figs. 1-5, one end of lubricating oil pump 2 is connected with oil inlet pipe 21, one end connection of inlet valve seat 3
There is carburetor 3, and inlet valve seat 3 is connected with carburetor 31, one end of oil inlet pipe 21 is connected with inlet valve seat 3, crankcase 1
It is interior to be equipped with bent axle 11, worm gear 25 is connected with the pump shaft 24 of lubricating oil pump 2, worm screw 4, bent axle 11 and worm screw 4 are arranged with bent axle 11
It is connected, worm screw 4 is intermeshed with worm gear 25, and worm screw 4 and worm gear 25 are arranged in crankcase 1.
Operation principle：Worm screw 4 drives worm gear 25 to move so that lubricating oil pump 2 starts so that the oil in lubricating oil pump 2 can be from list
Enter oil inlet pipe 21 to valve and flow into inlet valve seat 3, carburetor 31 forms certain air-fuel ratio after gasoline is mixed with air
Gasoline mixture, gasoline mixture is imported into inlet valve seat 3, and the machine oil in oil inlet pipe 21 can be mixed with gasoline mixture
Merga pass inlet valve seat 3 is sprayed into crankcase 1, and crankcase 1 starts running, and is carried out using worm screw 4 and worm gear 25 to lubricating oil pump 2
Carry out pump oil so that whole operation is more stablized, and is not in the phenomenon appearance of skidding, also causes the whole of engine
Structure is more compact, and worm screw 4 is set directly on bent axle 11, and worm gear 25 is arranged in lubricating oil pump 2, improves whole hair
The transmission accuracy of motivation, simultaneously because worm screw 4 and worm gear 25 are arranged in crankcase 1, it is bent during engine operation
All the time there is lubricating oil in axle box 1, therefore and need not additionally add lubricating oil to carry out the profit to worm screw 4 and worm gear 25
It is sliding, improve the lubricating efficiency of two stroke engine.
As shown in Figs. 1-5, crankcase 1 has mounting shell 13, and one end of lubricating oil pump 2 is arranged on mounting shell 13, pump shaft 24
It is arranged in mounting shell 13, pump shaft 24 is located at the side of worm screw 4, and the axial line of pump shaft 24 is vertical with the axial line of worm screw 4.
The setting of the structure so that the setting of pump shaft 24 more rationalizes, and the position of pump shaft 24 does not influence 4 snail of worm screw
The rotation of wheel 25, the structure of whole engine are compacter；And make it that the setting of pump shaft 24 and worm gear 25 is more convenient so that pump
The setting of axis 24 and worm gear 25 is more stablized, and is not in the situation that pump shaft 24 deviates from crankcase 1 during operation,
It ensure that the compact of whole engine structure, and the further transmission accuracy for improving engine, and the position of pump shaft 24 is set
Put, also can further improve the lubricating efficiency of engine.
As shown in Figs. 1-5, several pin holes 41 are offered on the madial wall of worm screw 4, bent axle 11 is equipped with locating rod 12, snail
Bar 4 is set on bent axle 11, and locating rod 12 can be embedded in a pin hole 41.
In the present embodiment, one or the locating rod 12 being correspondingly arranged with pin hole 41, pin hole can be set on bent axle 11
41 are circumferentially uniformly distributed along the madial wall of worm screw 4, and worm screw 4 is set on bent axle 11, at this time 12 energy of locating rod of crankcase 1
It is embedded in a pin hole 41 so that realize and be connected between worm screw 4 and bent axle 11, ensure that worm screw 4 can be with bent axle 11 1
Rise and rotate, add the stability of engine, while ensure that the correct operation of engine, improve the transmission essence of engine
Degree, facilitates the lubricating oil in crankcase 1 and is flowed on worm screw 4 and worm gear 25, improve the lubricating efficiency of engine.
As shown in Figs. 1-5, mounting shell 13 is integrally formed with crankcase 1.
The setting of the structure so that the lubricating oil in crankcase 1 will not overflow crankcase 1, while the setting of lubricating oil pump 2
Enhanced convenience, the structure of engine is more firm, and the structure for whole engine of working together is more succinct, and need not be again
The erecting device of worm gear 25, the installation of engine and setting enhanced convenience are set.
As shown in Figs. 1-5, the both ends of mounting shell 13 are respectively provided with erecting bed 14, and mounting hole 15, machine are offered on erecting bed 14
Oil pump 2 is equipped with mounting base 22, and mounting base 22 is equipped with the mounting hole 23 being oppositely arranged with mounting hole 15, tight in mounting hole 23
The end of firmware 5 can pass through mounting hole 23 and be fixed on erecting bed 14, and gasket 6 is equipped between erecting bed 14 and mounting base 22.
The setting of the structure so that lubricating oil pump 2 more stable can be connected with mounting shell 13, and lubricating oil pump 2 and mounting shell 13
Between it is easy to connect, relatively simple, and the setting of gasket 6 is set, can further prevent the lubrication oil stream in crankcase 1
Go out, also so that the connection between lubricating oil pump 2 and mounting shell 13 is more firm so that the transmission accuracy of engine is guaranteed.
As shown in Figs. 1-5, sealing ring 7 is arranged with pump shaft 24, sealing ring 7 can be fitted closely with the inner wall of mounting shell 13.
The setting of the structure, can further ensure that the lubricating oil in crankcase 1 will not flow out, and improve crankcase 1
Leakproofness.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Described specific embodiment can be done various modifications or additions or using similar by belonging to those skilled in the art
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (8)
1. a kind of two stroke engine, including crankcase (1), be connected with the lateral wall of the crankcase (1) lubricating oil pump (2) and
Inlet valve seat (3), one end of the lubricating oil pump (2) are connected with oil inlet pipe (21), being connected with of one end of the inlet valve seat (3)
Oily device (31), and inlet valve seat (3) is connected with carburetor (31), one end and inlet valve seat (3) phase of the oil inlet pipe (21)
Connection, the crankcase (1) is interior to be equipped with bent axle (11), it is characterised in that is connected with snail on the pump shaft (24) of the lubricating oil pump (2)
Take turns (25), worm screw (4) is arranged with the bent axle (11), the bent axle (11) is connected with worm screw (4), the worm screw (4) and snail
(25) intermeshing is taken turns, the worm screw (4) and worm gear (25) are arranged at crankcase (1).
2. two stroke engine according to claim 1, it is characterised in that the pump shaft (24) is arranged on crankcase (1)
Interior, the pump shaft (24) is located at the side of worm screw (4), and the axial line of the pump shaft (24) is vertical with the axial line of worm screw (4).
3. two stroke engine according to claim 1, it is characterised in that offered on the madial wall of the worm screw (4)
Several pin holes (41), the bent axle (11) are equipped with locating rod (12), and the worm screw (4) is set on bent axle (11), and fixed
Position bar (12) can be embedded in a pin hole (41).
4. according to the two stroke engine described in claim 1 or 2 or 3, it is characterised in that have peace on the crankcase (1)
Shell (13) is filled, one end of the lubricating oil pump (2) is arranged on mounting shell (13), and the pump shaft (24) is arranged on mounting shell (13)
It is interior.
5. two stroke engine according to claim 4, it is characterised in that the mounting shell (13) and crankcase (1) one
It is body formed.
6. two stroke engine according to claim 4, it is characterised in that the both ends of the mounting shell (13) are respectively provided with peace
Platform (14) is filled, offers mounting hole (15) on the erecting bed (14), the lubricating oil pump (2) is equipped with mounting base (22), described
Mounting base (22) is equipped with the mounting hole (23) that is oppositely arranged with mounting hole (15), the fastener (5) in the mounting hole (23)
End can pass through and mounting hole (23) and be fixed on erecting bed (14).
7. two stroke engine according to claim 6, it is characterised in that the erecting bed (14) and mounting base (22) it
Between be equipped with gasket (6).
8. two stroke engine according to claim 4, it is characterised in that be arranged with sealing ring on the pump shaft (24)
(7), the sealing ring (7) can fit closely with the inner wall of mounting shell (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721221085.1U CN207245786U (en) | 2017-09-21 | 2017-09-21 | A kind of two stroke engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721221085.1U CN207245786U (en) | 2017-09-21 | 2017-09-21 | A kind of two stroke engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207245786U true CN207245786U (en) | 2018-04-17 |
Family
ID=61886416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721221085.1U Active CN207245786U (en) | 2017-09-21 | 2017-09-21 | A kind of two stroke engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207245786U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915258A (en) * | 2019-02-01 | 2019-06-21 | 浙江派尼尔科技股份有限公司 | A kind of separation lubrication layered scavenging two-stroke brush cutter dynamic structure and working method |
-
2017
- 2017-09-21 CN CN201721221085.1U patent/CN207245786U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915258A (en) * | 2019-02-01 | 2019-06-21 | 浙江派尼尔科技股份有限公司 | A kind of separation lubrication layered scavenging two-stroke brush cutter dynamic structure and working method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8596240B2 (en) | Integrally cast block and gaseous fuel injected generator engine | |
| CN201236744Y (en) | Two-stroke horizontal contraposition dual-spindle engine | |
| CN207245786U (en) | A kind of two stroke engine | |
| CN102562222B (en) | Gas-oil separation check valve of automobile crankcase | |
| CN205744042U (en) | The two-cycle gasoline engine that a kind of gasoline lubricates with machine oil split | |
| TW494178B (en) | Engine with dry sump lubrication, separated scavenging and charging air flows and variable exhaust port timing | |
| CN107503819A (en) | A kind of two stroke engine | |
| CN101737162B (en) | Pump-gas boosting internal combustion engine | |
| CN109826704A (en) | A kind of separation lubrication two-stroke brush cutter dynamic structure and working method | |
| CN110439682A (en) | Contraposition engine | |
| CN109798163A (en) | Hand-held air-cooled four-cycle gasoline engine lubricating system and gasoline engine | |
| CN202441488U (en) | Miniature two-stroke gas engine | |
| CN209742990U (en) | Four-stroke engine capable of being turned over randomly | |
| US6899067B2 (en) | Two-stroke engine and method of operating the same | |
| CN103867296B (en) | Petrol engine | |
| CN1884805A (en) | Guide rail type high-speed big-torque engine | |
| CN204755081U (en) | Energy -conserving internal -combustion engine of optimizing | |
| CN208281109U (en) | A kind of hand starting electric-control injection-type vertical single-cylinder diesel engine | |
| JP3765335B2 (en) | 2-cycle internal combustion engine | |
| CN207513688U (en) | A kind of straight-bar piston reciprocating type engine | |
| ITMI980346A1 (en) | METHOD AND DEVICE FOR INJECTING FUEL AND / OR LUBRICANT FLUIDS IN AN INTERNAL COMBUSTION ENGINE | |
| CN109915258A (en) | A kind of separation lubrication layered scavenging two-stroke brush cutter dynamic structure and working method | |
| CN215830606U (en) | High-power low-energy-consumption two-stroke engine | |
| US20140196689A1 (en) | Pulse generator used for a one-step starting carburetor | |
| WO2006069503A1 (en) | Multiple-combustion chamber two-stroke engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 317599, No. 1, science Road, Chengdong street, Wenling, Zhejiang, Taizhou Patentee after: Qianjiang Group Wenling Zhengfeng Power Co.,Ltd. Address before: 317599, No. 1, science Road, Chengdong street, Wenling, Zhejiang, Taizhou Patentee before: WENLING JENNFENG INDUSTRY Inc. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221228 Address after: 317500 No. 1028, Sanxing Avenue, Chengdong street, Wenling City, Taizhou City, Zhejiang Province (southwest corner of the first floor) Patentee after: Zhejiang kaiborui Auto Parts Co.,Ltd. Address before: 317599 No. 1, Keji Road, Chengdong street, Wenling City, Taizhou City, Zhejiang Province Patentee before: Qianjiang Group Wenling Zhengfeng Power Co.,Ltd. |