CN2348118Y

CN2348118Y - Automatic speed-regulating device for gasoline engine

Info

Publication number: CN2348118Y
Application number: CN 98230381
Authority: CN
Inventors: 刘松林; 郑权
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-03-25
Filing date: 1998-03-25
Publication date: 1999-11-10
Anticipated expiration: 2008-03-25

Abstract

The utility model relates to an automatic speed regulating device for a gasoline engine, which is composed of a wheel shaft, a return spring, a bearing, a slide element of a centrifugal expansion wheel, a fixing cover element of a centrifugal expansion wheel, a sliding bullet, a starting wheel, a lever, a push-pull rod, a crank, a throttle wire, etc. and is assembled on a gasoline engine. With the principle of centrifugal force, the slide element of a centrifugal expansion wheel is forced to expand inward and outward, and the throttle wire is driven to a throttle gate of a carburetor to be regulated. The utility model realizes that the rotational speed can relatively increase through filling oil with loads and the rotational speed relatively decreases through reducing the oil without loads. The utility model has the advantages of simple structure, little investment and long service life and can lead the engine to have the advantages of oil saving, low noise, enough power and stable operation.

Description

The petrol engine automatic speed governing device

The utility model relates to a kind of device that is used to control fuel ratio that the Carburetor of petrol engine has under working load generation size variation situation, specifically be meant a kind of petrol engine automatic speed governing device.

Now, extensively being used for the power source on the farm machinery (as making the rice threshing machine), generally is to adopt diesel engine.Yet diesel engine has, and volume is big, heaviness, oil consumption, noise greatly, the operator pays shortcomings such as labor intensity is big, and compare, existing minitype motivation petrol engine (as the petrol engine of motorcycle employing) then has advantages such as volume labor intensity little, in light weight, fuel-efficient, that noise is little, the operator pays is little.But; if with the petrol engine widespread usage to beating on the farm machinery such as rice threshing machine; because petrol engine can not carry out automatic speed regulation along with the size of working load; more particularly; be exactly that petrol engine is prepared in the process of having a rest in the operation of not playing the rice threshing; promptly be working load from large to small the time, petrol engine still keeps high rotational speed constant.Therefore make that the whole work efficiency of petrol engine is low, fuel consumption can not drop to desirable degree, and noise is big, and parts wear is fast, and working life is short, plays the paddy that the rice threshing machine is up to, and contained rice sprout straw is many.Like this, can realize the automatic speed regulation of petrol engine, become the restriction petrol engine and can be widely applied to the key technical problem that agricultural machineries such as playing the rice threshing gets on.

For this reason, the purpose of this utility model is that a kind of petrol engine automatic speed governing device that can follow the working load size variation of petrol engine place machinery and carry out the rotating speed adjustment automatically is provided.

Solution of the present utility model is as follows.It has a wheel shaft, inside from wheel shaft one end, offer the internal thread that is used for fixing wheel shaft and connect blind hole, and should hold from wheel shaft, there is return spring outside sliding sleeve successively, bearing and centrifugal opening and closing wheel slider, wheel shaft the other end end by adjacent centrifugal opening and closing wheel slider, have and be fixed on outer being of wheel shaft and cover the centrifugal opening and closing that shape covers centrifugal opening and closing wheel slider and take turns fixedly cover piece, centrifugal opening and closing wheel fixedly between cover piece and the centrifugal opening and closing wheel slider formation can be with both axial distances variations the opening and closing space of variable sizeization, in this opening and closing space, be provided with centrifugal opening and closing wheel fixedly cover piece be solidly fixed along the equally distributed several ccontaining sliding bullet separate slots of circumference, all be placed with the surperficial slidable sliding bullet that is block in each separate slot, centrifugal opening and closing wheel is the cover piece outside fixedly, fixed cover is equipped with the driving wheel that an outer annulus edge has been offered belt starting groove, be fixed with a lever on the bearing shell, the other end of lever is fixed with pull bar, live mutually and be hinged in the end that the pull bar the other end and is cranked arm, the other end of cranking arm is fixed with a soft throttle line.

Have said structure the utility model device, can match with existing various light vapor oil turbines, use widely and making rice threshing machine etc. similarly on the farm machinery.Internal thread with the wheel shaft end of this device during supporting install connects the blind hole rotation set in petrolic bent axle outer end, being lived in the middle part of cranking arm of this device simultaneously is hinged and connected on the petrolic frame, and also the other end with the throttle line of this device is connected to petrolic carburetor throttle.The working principle of the utility model device is: the driving wheel with this device of belt and so on rotation, drive petrolic bent axle and magnetogenerator flywheel etc. by wheel shaft, and reach the primer fluid normal working of engine.Petrol engine is in having load or no-load running, along with the rotating speed of motor reduces and increases, centrifugal force dwindles and increases, sliding bullet is inside and outside back and forth motion in the opening and closing wheel, force the inside and outside opening and closing of opening and closing wheel slider, make bearing compression retracteding position spring move left and right, be contained in the lever on the bearing, along with the motion of bearing passes motion to pull bar, crank arm, throttle line to carburetor throttle regulates, and to realize having load to refuel, engine speed increased relatively, the zero load oil that subtracts reduces engine speed relatively.

The utility model arrangements for speed regulation have little, simple in structure, the long service life of investment, profitable advantage; being specially adapted to the south rice threshing machine uses; make that engine noise is low, power sufficient, running is steady, fuel-economizing performance good (fuel-economizing can reach more than 20%); the paddy of getting contain straw, rice sprout few, greatly reduce work load, increased working efficiency.

Below in conjunction with drawings and Examples the utility model is made and to further specify.

Fig. 1 is the embodiment and the matched structural representation of petrol engine of a kind of concrete structure of the present utility model;

Fig. 2 and Fig. 3 are respectively A-A and the B-B sectional view of Fig. 1.

Referring to Fig. 1 to Fig. 3.The utility model device has a wheel shaft 1, inside from the right-hand member of wheel shaft 1, offer the internal thread that is used for fixing wheel shaft 1 and connect blind hole, from wheel shaft 1 right-hand member, there is return spring 2 outside sliding sleeve successively, bearing 3 and centrifugal opening and closing wheel slider 4, wheel shaft 1 the other end end by adjacent centrifugal opening and closing wheel slider 4, have and be fixed on outer being of wheel shaft 1 and cover the centrifugal opening and closing that shape covers centrifugal opening and closing wheel slider 4 and take turns fixedly cover piece 5, centrifugal opening and closing wheel fixedly form and can change and the opening and closing space 501 of variable sizeization with both axial distances between cover piece 5 and the centrifugal opening and closing wheel slider 4, in opening and closing space 501, be provided with centrifugal opening and closing wheel fixedly cover piece 5 be solidly fixed along equally distributed three the ccontaining bullet separate slots 502 of sliding of circumference, all be placed with the surperficial slidable sliding bullet 6 that is block in the separate slot 502.In accompanying drawing embodiment, the ccontaining sliding quantity that plays separate slot 502 and sliding bullet 6 is three, also can be other quantity, and being shaped as of sliding bullet 6 is cylindric, also can be other shape.Centrifugal opening and closing wheel fixedly cover piece 5 external stabilities is set with the driving wheel 7 that an outer annulus edge has been offered belt starting groove 701, be fixed with a lever 8 on bearing 3 shells, the other end of lever 8 is fixed with crank arm 10 end of pull bar 9, pull bar 9 the other ends and and lives mutually with hinge 12 and be hinged, and 10 the other end of cranking arm is fixed with a soft throttle line 11.In order to strengthen throttle line 11 and to crank arm 10 be connected, the joint is provided with the aluminium card 13 that blocks throttle line 11 ends.

During the matched use of the utility model device and existing petrol engine, the internal thread of wheel shaft 1 end connects the blind hole rotation set in the outer end of

petrolic bent axle

15, and 10 the middle part of cranking arm of this device is hinged and connected on the petrolic frame with hinge 14 work.Reference character 16 and 17 among Fig. 1 is respectively petrolic cam and magnetogenerator flywheel.

Claims

1, a kind of petrol engine automatic speed governing device, it is characterized in that, has a wheel shaft, inside from wheel shaft one end, offer the internal thread that is used for fixing wheel shaft and connect blind hole, and should hold from wheel shaft, there is return spring outside sliding sleeve successively, bearing and centrifugal opening and closing wheel slider, wheel shaft the other end end by adjacent centrifugal opening and closing wheel slider, have and be fixed on outer being of wheel shaft and cover the centrifugal opening and closing that shape covers centrifugal opening and closing wheel slider and take turns fixedly cover piece, centrifugal opening and closing wheel fixedly between cover piece and the centrifugal opening and closing wheel slider formation can be with both axial distances variations the opening and closing space of variable sizeization, in this opening and closing space, be provided with centrifugal opening and closing wheel fixedly cover piece be solidly fixed along the equally distributed several ccontaining sliding bullet separate slots of circumference, all be placed with the surperficial slidable sliding bullet that is block in each separate slot, centrifugal opening and closing wheel is the cover piece outside fixedly, fixed cover is equipped with the driving wheel that an outer annulus edge has been offered belt starting groove, be fixed with a lever on the bearing shell, the other end of lever is fixed with pull bar, live mutually and be hinged in the end that the pull bar the other end and is cranked arm, the other end of cranking arm is fixed with a soft throttle line.

2, petrol engine automatic speed governing device as claimed in claim 1 is characterized in that, the ccontaining sliding quantity that plays separate slot and sliding bullet is three, and being shaped as of sliding bullet is cylindric.