CN104564332B - Universal single-cylinder large-displacement gasoline engine device - Google Patents
Universal single-cylinder large-displacement gasoline engine device Download PDFInfo
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- CN104564332B CN104564332B CN201510055099.XA CN201510055099A CN104564332B CN 104564332 B CN104564332 B CN 104564332B CN 201510055099 A CN201510055099 A CN 201510055099A CN 104564332 B CN104564332 B CN 104564332B
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- oil duct
- push rod
- casing
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Abstract
The invention discloses a universal single-cylinder large-displacement gasoline engine device which comprises a box body, a box cover and a cylinder head which are connected with one another, wherein a crankshaft is in direct revolute-pair connection with the box body and the box cover; oil ducts communicated with one another are arranged on the box body, the box cover and the cylinder head; the oil ducts in the box body and the box cover respectively reach a rotation pair formed by the crankshaft, the box body and the box cover; a first branch oil duct and a second branch oil duct from which lubricating oil can flow out are arranged at the rotation pair; the first branch oil duct is communicated with an oil duct in the crankshaft to reach a crankshaft link; the second branch oil duct reaches the top of an air valve, a rocker arm and a push rod after being communicated with the oil duct in the cylinder head; and the oil ducts in the box body are simultaneously communicated with a balance shaft rotationally connected with the box body. The universal single-cylinder large-displacement gasoline engine device realizes diversification of universal engine products and remedies market shortage. More importantly, the universal single-cylinder large-displacement gasoline engine device can be used for completely replacing a double-cylinder engine with the same displacement. The universal single-cylinder large-displacement gasoline engine device is 30% lower than the double-cylinder engine in cost and can meet a hot market demand.
Description
Technical field
The utility model is related to a kind of engine.
Background technology
The bent axle rotating connection on engine is attached to engine piston by crankshaft-link rod, simultaneously as common knowledge institute
Know, bent axle drives camshaft, push rod and rocking arm normally to work ordering about valve successively.When at engine in working order,
The movement velocity of piston is very fast, and speed is very uneven, and other inertia force can not be fully achieved poised state, now
Engine just creates vibration.
In order to eliminate the vibration that engine crankshaft brings, increasing balance shaft is one of method, and balance shaft is exactly one in fact
The axle rotating equipped with eccentric weight and with crankshaft-synchronous, using vibrations power produced by eccentric weight, makes engine obtain
Good counterbalance effect, reduces engine luggine, and balance shaft is typically rotatably connected on casing or case lid.
Existing general dynamic trunnion axis single-cylinder engine maximum pump discharge only has 459cc, and cylinder diameter stroke is 92 × 66, maximum
Power 9.5kW（3600RPM）.Huge discharge is exactly bi-block engine again（Bi-block engine cost is very high）.And grow stronger day by day now
Logical machine market develop to huge discharge, the single-cylinder engine of 459cc cannot meet the market demand at all.Market demand single cylinder
The engine of more huge discharge.
Any discussion to background technology for the entire disclosure, not representing this background technology must be art technology people
The prior art that member is known；In entire disclosure to prior art any discuss not represent think the prior art one
Surely it is the common knowledge of widely known or certain composition this area.
Utility model content
The utility model is intended to provide a kind of general single cylinder huge discharge petrol engine device, realizes big row with brand new
Amount single-cylinder engine.
General single cylinder huge discharge petrol engine device in this programme, including joining casing, case lid and cylinder head, bent
Axle directly forms rotation duplicate invoice with casing and case lid and connects, casing, case lid with the oil duct being connected, casing and case are equipped with cylinder head
Oil duct in lid arrives separately at the rotation pair that described bent axle is formed with casing and case lid, and described rotation vice division chief is provided with and supplies lubricating oil
The first branch's oil duct flowing out and second branch's oil duct, the first branch oil duct connects oil duct in bent axle to reach crankshaft-link rod,
Valve top, rocking arm and push rod is reached successively, the oil duct in casing connects simultaneously after oil duct in second branch's oil duct connection cylinder head
Pass to the balance shaft that connection is rotated on casing.
Machine oil oil in cylinder head flows into the oil sump of bottom in casing by pushrod chamber.
Above-mentioned " bent axle directly formed with casing and case lid rotate duplicate invoice connect " refers to bent axle and casing or bent axle and case
Lid is no longer provided with the devices such as bearing therebetween, but realizes rotation duplicate invoice by total pressure forced feed lubrication and connect.
Bent axle is connected with casing, case lid bearing-free, and machine oil is entered bent axle by lubricating oil pump pressurization and coordinated with casing, case lid
In gap.（Bent axle is coordinated for gap with casing, case lid）Form very thin oil film, thus it is secondary to lubricate rotation.
The technical program takes the lubricating system of two oil ducts, using this scheme, can be fully by crankshaft hole and cylinder head cover, cylinder
Body combines and rocking arm, push rod etc. are lubricated, and can get sufficient lubrication, oil duct warp everywhere with this whole machine of scheme engine
The effect of the temperature reducing cylinder head when crossing near cylinder head, being played, ensureing that cylinder head bolt torsion is unattenuated, thus ensureing cylinder head
Sealing.Engine whole machine bearing-free, greatly reduces manufacturing cost, improves competitiveness.Ensure that lubrication arrives each of engine
Routing motion part, has prevented engine because of insufficient lubrication locking phenomenon.Greatly improve security, the durability of engine.
Realize the variation of logical machine product, make up market not enough.Prior can replace same discharge capacity twin-tub type completely.Than same discharge capacity
Twin-tub type low cost 30%, is market focus demand.
Further, including camshaft, camshaft has been provided with admission cam, and camshaft is provided with chute, spacing in chute
It is slidably connected the slide block with respect to cam eccentric shaft, in admission cam, is provided with slide opening, in slide opening, be slidably connected push rod, slide opening
Opening on admission cam surface is located at the side of lug boss, and the opening of slide opening the opposing party corresponds to slide block, and the length of push rod is more than
The length of slide opening, slide block is provided with recess, and after slide block centrifugation is mobile, described recess is just to push rod.
When camshaft is static, slide block is blocked in the inboard opening of slide opening, because the length of push rod is more than the length of slide opening,
The afterbody of push rod withstands on slide block, and the head of push rod is inevitable to be protruded from the surface of admission cam, can be certain by IO Intake Valve Opens
Gap, make engine in-cylinder pressure close to atmospheric pressure, engine easily starts.
When cam axle, the spacing slide block being slidably connected whipping certain distance under the action of the centrifugal force in chute, this
When slide block on recess just to push rod, the depth of recess adds that the length of slide opening is more than the length of push rod, and push rod can be retracted cunning
In hole, no longer jack-up exhaust valve is so that gasoline engine normal work.
This structure of relief pressure valve, while both ensureing to have good startability and start feel, can be effectively prevented again and send out
Motivation is blown out.Its principle enters temperature after cylinder block is compressed for gas and raises, and is not reaching to pressure-reducing valve in engine speed and gets rid of
During de- rotating speed, the portion gas after being heated can return in air filter, after entering next circulation.Then the concentration of air inlet becomes
Greatly, temperature is higher, so that startability is improved, improves the efficiency of combustion of engine, can effectively prevent muffler explosion.
Further, coupling between push rod and slide opening has the resetting means ordering about push rod retraction.Can effectively ensure that push rod exists
In retraction slide opening after rotation.
Further, including fixing bearing on the engine and two rocking arms being arranged on bearing, rocking arm is connect with push rod
Tactile one end is force side, and the one end contacting with valve stem is contact jaw, and two rocking arms are to be detachably connected with bearing, rocking arm footpath
To being provided with through hole, in through hole, it is provided with bearing pin, bearing pin two ends are fixed on bearing, the angle of inclination of rocking arm swinging plane and valve
The angle of inclination of bar is consistent.
This programme operation principle is as follows：By one bearing pin of middle setting in rocking arm, realize rocking arm only on a plane
Interior rotary freedom, limits push rod swing in the other direction, it is to avoid valve top, push rod and its push rod limiting plate
The problem swinging in multiple frees degree, wearing and tearing because of rocking bar, because structure simplifies, therefore can improve the accuracy of manufacture and assembling effect
Rate, extends engine life, the security of lifting engine.
Further, push rod is the hollow-core construction of aluminum alloy material.
1st, the material of aluminium alloy push rod and casing, cylinder head the same, the coefficient of expansion is consistent.Stretch with casing, cylinder head after being heated
Length is isometric.Thus reducing valve clearance variable quantity, reduce the impact to power.
2nd, aluminium alloy push rod weight saving, improves the acceleration (F=ma) of whole valve actuating mechanism, thus improve starting
Machine fly off rotating speed.Improve the security performance of engine.
Further, engine includes taking the cooling system of the common cooling of wind, oil.
Brief description
Fig. 1 is embodiment one schematic perspective view；
Fig. 2 is the left view of embodiment one Fig. 1；
Fig. 3 is the rearview of embodiment one Fig. 1；
Fig. 4 is case lid schematic diagram in embodiment one Fig. 1；
Fig. 5 is the schematic perspective view of embodiment two；
Fig. 6 is the schematic front view of embodiment two；
Fig. 7 is the A-A of Fig. 2 in embodiment two to regarding schematic diagram.
Fig. 8 is the structural scheme of mechanism of embodiment three；
Fig. 9 is A direction view in embodiment three Fig. 1.
Specific embodiment
Below by specific embodiment, the utility model is described in further detail：
In the present embodiment, engine parameter is as described below：
Cylinder diameter：98mm pattern：Single cylinder trunnion axis
Cylinder diameter stroke is：98×87
Discharge capacity：656cc peak power：14kW（3600RPM）
Cooling system：Wind, oil are common to be cooled down（Brand-new system）
Lubricating system：Total pressure forced feed lubrication bearing-free（Brand-new system）
Air distribution system：Completely newly wear pin rocker structure, forge rocking arm, hollow aluminium alloy push rod, completely newly subtract air inlet pressure-reducing valve convex
Wheel construction.
Embodiment one respective figure 1～4, the reference in embodiment one includes：Oil duct first 1, oil duct second 2, oil duct third
3rd, oil duct fourth 4, oil duct penta 5, oil duct oneself, oil duct be pungent 8 in 6, oil duct heptan 7, oil duct nonyl 9, casing oil groove 10, casing crankshaft hole 11, case
Body balance shaft 12, case lid balance shaft 13, case lid oil groove 14, case lid crankshaft hole, lubricating oil pump 16, filter 17, casing 18, case lid
19th, cylinder head 20, cylinder head cover 21, composition surface 22.
Oil duct is arranged on engine housing 18, case lid 19, cylinder head 20, so that oil duct is connected by machine add mode.Machine oil passes through
Lubricating oil pump 16 enters oil duct after filter 17 by oil duct first 1 and is divided into two branch roads, and a branch road is oil duct second 2, oil duct second 2 cloth
Put on case lid 19, oil duct second inherent filtration device 17 reaches case lid oil groove 10, connecting rod is lubricated by the oil duct that bent axle in the hole is arranged and joins
Close end, oil duct second 2 balances axis hole 13 lubrication balance axle by way of case lid.
, through the oil duct fourth 4 being arranged on casing 18, oil duct fourth 4 connects and is equally arranged in for another branch road inherent filtration device 17
Oil duct on casing 18 penta 5, oil duct penta 5 connects casing oil groove 10, lubricates the cooperation of casing 18 and bent axle by casing oil groove 10
End, oil duct penta 5 balances axis hole 12 lubrication balance axle by way of casing.Oil duct penta 5 extends to cylinder head 20 from casing oil groove 10, arrives at cylinder
20 with the composition surface 22 of cylinder head cover 21, is disposed with composition surface 22, from oil duct heptan 7 to cylinder head cover 21 to cylinder head oil duct heptan 7
The valve actuating mechanisms such as 20 internal arrangement oil ducts are pungent 8., oil duct nonyl 9 lubrication valve top, rocking arm and push rod.
Oil duct first 1, oil duct second 2, oil duct the third 3, oil duct fourth 4, oil duct penta 5, oneself 6, oil duct heptan 7, oil of casing oil groove 10, oil duct
Road is pungent 8, oil duct nonyl 9 is interconnected, and finally reaches cylinder head.Realize casing 18, cylinder head cover 19 two ends lubricate entirely, eventually pass oil duct
The ventilation mechanisms such as nonyl 9, lubrication rocking arm, valve and push rod.
Embodiment two respective figure 5～7, the reference in embodiment two includes：Camshaft 1, positive stop lug boss 11, exhaust
Groove 43 in the middle part of cam 2, admission cam 3, slide block 4, bolt 41, balancing weight 42, slide block, slide opening 5, push rod 6, stage clip 7.
Embodiment two includes the full content described in embodiment one, also includes the description below, and camshaft is provided with exhaust
Cam and admission cam, the mechanism of this device is predominantly located at the admission cam position on camshaft, and slide block is in a C-shaped and embraces
On the camshaft of gas cam side, slide block is located between the positive stop lug boss 11 on admission cam and camshaft, can be used for guiding
Bolt passes through the parallel upper following and camshaft of slide block, and balancing weight is fixed on slide block, because bolt radial direction has gap
Through camshaft, under the guide effect of bolt, slide block can slide in radially certain stroke range of camshaft, when
During cam axle, due to the presence of balancing weight, whole slide block can be maintained at eccentric position under the influence of centrifugal force, now slide
Groove in the middle part of block can be at the inboard opening of slide opening.
It is drilled with the slide opening of radial direction in the admission cam on camshaft, the opening on admission cam surface for the slide opening is located at convex
The side of wheel protuberance, on admission cam, the normal of peak and the axis of slide opening are vertical, have been slidably connected push rod, push rod in slide opening
It is provided with the stage clip ordering about push rod retraction and slide opening between, the tail end of push rod withstands on the waist of slide block, and now the head end of push rod is convex
Go out slide opening a bit of, when gasoline engine stops this bit of just by a bit of for inlet valve jack-up stroke.When slide block is in centrifugal force
When being displaced outwardly under effect, the tail end of push rod withstands in the groove in the middle part of slide block, and push rod is no longer come in contact with inlet valve.
As the improvement of scheme, it is additionally provided with the resetting means ordering about the centripetal movement of slide block, this resetting means is back-moving spring
Pressure-reducing valve is controlled to get rid of de- rotating speed.
Embodiment three respective figure 8～9, the reference in embodiment three includes：Bearing 1, bearing pin 2, rocking arm 3, stress
End 4, lock-screw 5, contact jaw 6, axis pin base 7, screw 8.
Embodiment three includes the full content described in embodiment one and two, also includes the description below, the shaking of the present embodiment
Arm configuration, including bearing 1 and rocking arm 3, bearing 1 is symmetrical structure, and bearing 1 is provided with screw 8, facilitates bearing 1 to be fixed on and start
On machine, two rocking arms 3 are symmetrically respectively provided at bearing 1 symmetrical center line both sides, due to exhaust valve and inlet valve on usual engine
The distance between the distance between more than push rod, therefore, two rocking arms 3 are simultaneously not parallel, as shown in figure 1, being in inverted "eight" shape, rocking arm
3 is arc structure.Rocking arm 3 is axially arranged with through hole, is cased with bearing pin 2 in through hole, and bearing 1 is provided with axis pin base 7, and axis pin base 7 sets
There is pin-and-hole, the two ends of bearing pin 2 are sheathed in pin-and-hole, and the axis pin base 7 of bearing pin 2 one end is provided with lock-screw 7, and in installation, bearing pin 2 is worn
It is inserted in rocking arm 3 through hole, bearing pin 2 one end is set in the pin-and-hole of axis pin base 7, and other end lock-screw 5 is fixed on another
On axis pin base 7, can achieve unloading process in the same manner, can reach the Quick Release fast-assembling of rocking arm 3 accordingly, in being embodied as, send out to improve
Motivation operating efficiency, usual valve is obliquely installed, therefore, and stress for convenience, the plane that rocking arm 3 is swung is corresponding with valve stem
It is obliquely installed.Contacting one end in rocking arm 3 with push rod, because being that rocking arm 3 is applied to by push rod force, therefore for force side 4, being subject to
Power end adopts socket arrangement, when push rod is mobile, realizes the conversion of push rod and rocking arm 3 angle, rocking arm 3 is contacted with valve stem
One end is contact jaw, and rocking arm 3 is plane with contact jaw 6 face of valve stem, is set to bulb shape, shape with the valve stem of end contact
Become point face contact, traditional sliding friction is changed into rolling friction, reduces abrasion.
In one bearing pin of middle setting of rocking arm, rocking arm, with bearing pin as fulcrum, when push rod acts on to rocking arm 3, shakes
Arm 3 has rotary freedom only in a plane, can effectively improve rocking arm 3 accuracy of manufacture, anti-throw-out lever is in its other party
Swing upwards, and cause the problem at valve stem top, push rod and its abrasion of push rod limiting plate.
Above-described is only embodiment of the present utility model, the general knowledge here such as known concrete structure and characteristic in scheme
Excessively describe.It should be pointed out that for a person skilled in the art, in the premise without departing from the utility model structure
Under, some deformation can also be made and improve, these also should be considered as protection domain of the present utility model, and these are all without impact
Effect and practical applicability that the utility model is implemented.This application claims protection domain should be with the content of its claim
It is defined, specific embodiment in specification etc. records the content that can be used for explaining claim.
Claims (6)
1. general single cylinder huge discharge petrol engine device, including joining casing, case lid and cylinder head it is characterised in that song
Axle directly forms rotation duplicate invoice with casing and case lid and connects, casing, case lid with the oil duct being connected, casing and case are equipped with cylinder head
Oil duct in lid arrives separately at the rotation pair that described bent axle is formed with casing and case lid, and described rotation vice division chief is provided with and supplies lubricating oil
The first branch's oil duct flowing out and second branch's oil duct, the first branch oil duct connects oil duct in bent axle to reach crankshaft-link rod,
Valve top, rocking arm and push rod is reached successively, the oil duct in casing connects simultaneously after oil duct in second branch's oil duct connection cylinder head
Pass to the balance shaft that connection is rotated on casing.
2. general single cylinder huge discharge petrol engine device according to claim 1 it is characterised in that：Including camshaft,
Camshaft has been provided with admission cam, and camshaft is provided with chute, spacing in chute has been slidably connected with respect to cam eccentric shaft
Slide block, be provided with slide opening in admission cam, in slide opening, be slidably connected push rod, the opening on admission cam surface for the slide opening be located at convex
The side in the portion of rising, the opening of slide opening the opposing party corresponds to slide block, and the length of push rod is more than the length of slide opening, and slide block is provided with recess,
After slide block centrifugation is mobile, described recess is just to push rod.
3. general single cylinder huge discharge petrol engine device according to claim 2 it is characterised in that：Push rod and slide opening it
Between connection have order about push rod retraction resetting means.
4. general single cylinder huge discharge petrol engine device according to claim 1 it is characterised in that：Send out including being fixed on
Bearing in motivation and two rocking arms being arranged on bearing, one end that rocking arm is contacted with push rod is force side, connects with valve stem
Tactile one end is contact jaw, and two rocking arms are to be detachably connected with bearing, and rocking arm has been radially arranged through hole, is provided with pin in through hole
Axle, bearing pin two ends are fixed on bearing, and the angle of inclination of rocking arm swinging plane is consistent with the angle of inclination of valve stem.
5. general single cylinder huge discharge petrol engine device according to claim 1 it is characterised in that：Push rod is aluminium alloy
The hollow-core construction of material.
6. general single cylinder huge discharge petrol engine device according to claim 1 it is characterised in that：Engine includes adopting
Take the cooling system of the common cooling of wind, oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510055099.XA CN104564332B (en) | 2015-02-03 | 2015-02-03 | Universal single-cylinder large-displacement gasoline engine device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510055099.XA CN104564332B (en) | 2015-02-03 | 2015-02-03 | Universal single-cylinder large-displacement gasoline engine device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104564332A CN104564332A (en) | 2015-04-29 |
| CN104564332B true CN104564332B (en) | 2017-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510055099.XA Active CN104564332B (en) | 2015-02-03 | 2015-02-03 | Universal single-cylinder large-displacement gasoline engine device |
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| CN (1) | CN104564332B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6660259B2 (en) * | 2016-06-23 | 2020-03-11 | ヤンマー株式会社 | Engine equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB802220A (en) * | 1956-06-05 | 1958-10-01 | Fiat Spa | Pump and filter unit for the lubrication oil of internal combustion engines |
| JP4545361B2 (en) * | 2001-09-18 | 2010-09-15 | 株式会社やまびこ | Cooling device for four-cycle internal combustion engine |
| CN201045307Y (en) * | 2007-06-25 | 2008-04-09 | 翁光敏 | Motorcycle engine having completely machine coolant oil path |
| CN201232576Y (en) * | 2008-05-30 | 2009-05-06 | 隆鑫工业有限公司 | Lubricating oil path of motorcycle engine |
| CN104074568B (en) * | 2014-06-24 | 2016-05-18 | 力帆实业(集团)股份有限公司 | Motorcycle engine oil cooling lubricating system |
| CN204492979U (en) * | 2015-02-03 | 2015-07-22 | 重庆大江动力设备制造有限公司 | General single cylinder huge discharge gasoline engine machine |
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| CN104564332A (en) | 2015-04-29 |
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