CN103573994B

CN103573994B - Stepless speed variator

Info

Publication number: CN103573994B
Application number: CN201210282492.9A
Authority: CN
Inventors: 赖建宏
Original assignee: Kwang Yang Motor Co Ltd
Current assignee: Kwang Yang Motor Co Ltd
Priority date: 2012-08-09
Filing date: 2012-08-09
Publication date: 2017-02-08
Anticipated expiration: 2032-08-09
Also published as: CN103573994A

Abstract

A stepless speed variator is suitable for an engine of a car; the engine comprises a crankshaft box; the stepless speed variator comprises a transmission box combined with the crankshaft box, a stepless speed varying unit arranged in the transmission box and a wind guiding unit arranged in the transmission box by corresponding to the stepless speed varying unit; the stepless speed varying unit comprises a driving wheel, a driven wheel and a transmission part sleeved on the driving wheel and the driven wheel; the driven wheel and the driving wheel are arranged in a spaced and pivoting mode; the wind guiding unit comprises a first wind guiding wall and a second wind guiding wall, which surround the outer edge of the driving wheel at an interval; the wind guiding unit also comprises a first notch facing the direction of the driven wheel, and a second notch opposite to the first notch; an air flow can uniformly flow by all parts of the stepless speed varying unit, and the cooling effect of the stepless varying unit is more uniform.

Description

Continuously variable transmission device

Technical field

The present invention, with regard to a kind of speed change gear, particularly relates to a kind of continuously variable transmission device.

Background technology

Refering to Fig. 1,2, TaiWan, China announce No. I308613 " the strap speed varying system cooling body of engine " patent of invention Disclose a crankcase 12, stretch through this crankcase 12 bent axle 13, be covered on this crankcase 12 side and with this crankcase 12 Match define an accommodation space 100 enclosing cover 14, be arranged in this accommodation space 100 be subject to this bent axle 13 drive belt Speed change system 15, and a wind scooper 16.

This crankcase 12 has the air inlet 121 connecting this accommodation space 100 and an air outlet 122；This strap speed varying System 15 has a drivewheel 151, one and this spaced follower (not shown) of drivewheel 151, and a set of covers this active Wheel 151 and the belt 154 of this follower；And this wind scooper 16 has one around this drivewheel 151 and is formed with one and goes out towards this The bulge loop 161 of the opening 162 in air port 122.This drivewheel 151 includes a drive disk 152, and a slider disc 153, this bulge loop 161 It is around this drive disk 152.

Via the guide function of this bulge loop 161, can make to be directed to drive disk 152 by the gas that this air inlet 121 flows into, join The rotation closing this drive disk 152 can make gas import this accommodation space 100 backward via this opening 162, then by this air outlet 122 Discharge, to cool down strap speed varying system 15.

Because this slider disc 153 and this bulge loop 161 are in the opposition side of this drive disk 152, and this bulge loop 161 only shape The Cheng Youyi opening 162 towards this air outlet 122, therefore, most gas is all driven by this drive disk 152 directly to be opened through this Mouthfuls 162 and flow out towards this air outlet 122, and do not flow towards this slider disc 153 direction, cause the cooling of this slider disc 153 to imitate Fruit is not good.

Content of the invention

Therefore, the purpose of the present invention, that is, be the continuously variable transmission device providing a kind of cooling effect to be more uniformly distributed.

Then, continuously variable transmission device of the present invention is it is adaptable on the engine of a vehicle, and this engine includes one and be formed with one entering The crankcase in air port, and a main shaft stretching through out this crankcase.

This continuously variable transmission device is comprised a change speed gear box being combined with this crankcase, one is arranged at the no section in this change speed gear box Variable-speed unit, and a pair should continuous variable speed unit and be arranged at the wind deflector unit in this change speed gear box.This change speed gear box is formed with one The opening being connected with the air inlet of this crankcase, and this main shaft stretches into this change speed gear box by this opening.

This continuous variable speed unit includes one and is arranged on this main shaft and to should opening and the active that is located in this change speed gear box Wheel, one with this main shaft interval be hubbed at the power transmission shaft of this change speed gear box, one be arranged on this power transmission shaft and be located at this change speed gear box in Follower, and one be sheathed on driving member on this drivewheel and this follower, this drivewheel includes being arranged at intervals on this main shaft An active drive disk and an active slip disk, the passive matrix disk that this follower includes being arranged at intervals on this power transmission shaft with One passive slider disc, this driving member is to be sheathed on this active drive disk and this active slip disk, and this passive matrix disk and this quilt Between dynamic slider disc.

This wind deflector unit include one be located at this change speed gear box in and along this drivewheel outer rim curved arc extend the first air guiding wall, one At intervals along the second air guiding wall, a shape of the extension of this drivewheel outer rim curved arc in this change speed gear box and with this first air guiding wall Become between this first air guiding wall and this second air guiding wall and the first breach towards this follower direction, and one first is lacked with this Mouthful contrary and the second breach between this first air guiding wall and this second air guiding wall.

The beneficial effects of the present invention is：Using this first air guiding wall separately and this second air guiding wall, and this One breach and this second breach, enable to flow uniformly through active drive disk and this active slip by the air-flow that this air inlet flows into Disk, this passive matrix disk and this passive slider disc and this driving member, make the cooling effect of this continuous variable speed unit be more uniformly distributed.

Brief description

Fig. 1 is a three-dimensional exploded view, illustrates that TaiWan, China announces No. I308613 " the strap speed varying system cooling of engine Mechanism " patent of invention；

Fig. 2 is a part of sectional view, aids in illustrating Fig. 1；

Fig. 3 is a three-dimensional exploded view, and the first preferred embodiment of continuously variable transmission device of the present invention is described；

Fig. 4 is a sectional view, aids in illustrating Fig. 3；

Fig. 5 is side view diagram, and the position relationship of gearbox body and wind deflector unit in this first preferred embodiment is described, its In, clipped component；And

Fig. 6 is side view diagram, and the second preferred embodiment of continuously variable transmission device of the present invention is described.

Specific embodiment

For the present invention aforementioned and other technology contents, feature and effect, at two of following cooperation refer to the attached drawing relatively In the detailed description of good embodiment, can clearly present.

Before the present invention is described in detail it is noted that, in the following description content, similar element is with phase With numbering representing.

Refering to Fig. 3,4, the first preferred embodiment of continuously variable transmission device 2 of the present invention is applied on the engine 200 of a vehicle, This engine 200 includes a crankcase 201 being formed with an air inlet 202, and a main shaft 203 stretching through out this crankcase 201. In Fig. 4, arrow F is the forward direction representing engine 200, and in Fig. 4, arrow R is the rear direction representing engine 200.

This continuously variable transmission device 2 is comprised a change speed gear box 21, being combined with this crankcase 201 and is arranged at this change speed gear box 21 In continuous variable speed unit 22, and a pair should continuous variable speed unit 22 and be arranged at the wind deflector unit 23 in this change speed gear box 21.

This change speed gear box 21 includes one and is incorporated into the gearbox body 211, of this crankcase 201 and this gearbox body 211 matches Close the gear shift cover 215 defining an accommodation space 216, and one convexedly stretches in this gearbox body 211 and connects this accommodation space 216 Air outlet 217.

This gearbox body 211 have one towards this crankcase 201 body 212, around this body 212 periphery Around portion 213, and one is formed on this body 212 to connect air inlet 202 and this accommodation space 216 of this crankcase 201 Opening 214.And the body 212 of this gearbox body 211 has a court and protrudes from crankcase away from this air inlet 202 direction 201 and be formed with the nose section 218 of an outlet 219.

This main shaft 203 is to be stretched in this accommodation space 216 by this opening 214, and this air outlet 217 is by this change speed gear box The nose section 218 that 211 body 212 protrudes from crankcase 201 backward extends obliquely out towards this crankcase 201 rear.

Because this air outlet 217 is the nose section being protruded from crankcase 201 by the body 212 of this change speed gear box 211 backward 218 extend obliquely out towards this crankcase 201 rear, not only can make full use of the space between this crankcase 201 and this change speed gear box 21 Avoid space waste moreover it is possible to avoid the length of this engine 200 and the increase of width.

In this preferred embodiment, the gearbox body 211 of this change speed gear box 21 is all to be projected into plastic cement with gear shift cover 215 Type is made, not only make upper more convenient simple moreover it is possible to reduce overall weight.

This continuous variable speed unit 22 include one be arranged on this main shaft 203 and to should opening 214 and be located at this accommodating sky Between drivewheel 221, in 216 and this main shaft 203 interval stretch through the transmission of the body 212 being hubbed at this gearbox body 211 Axle 224, one is arranged on this power transmission shaft 224 and is located at the follower 225 in this accommodation space 216, and one is sheathed on this active Driving member 228 on wheel 221 and this follower 225.

This drivewheel 221 includes an active drive disk 222 being arranged on this main shaft 203, and one and this active drive disk 222 are arranged at intervals on this main shaft 203 and between the active slip disk between this active drive disk 222 and this gear shift cover 215 223.This follower 225 includes a passive slider disc 226 being arranged on this power transmission shaft 224, and one and this passive slider disc 226 It is arranged at intervals on power transmission shaft 224 and between the passive matrix disk 227 between this passive slider disc 226 and this gear shift cover 215. This driving member 228 is to be sheathed between this active drive disk 222 and this active slip disk 223, and this passive slider disc 226 with should Between passive matrix disk 227.

In this preferred embodiment, drivewheel 221 and this follower 225 are all belt pulleys, and this driving member 228 is one Belt.

Refering to Fig. 3,5, this wind deflector unit 23 includes one and is protruded out towards this gear shift cover 215 direction by this body 212 First air guiding wall 231, one and this first air guiding wall 231 are convex towards this gear shift cover 215 direction by this body 212 at intervals The second air guiding wall 234, stretched is formed between this first air guiding wall 231 and this second air guiding wall 234 and towards this follower First breach 237 in 225 directions, and one is contrary with this first breach 237 and between this first air guiding wall 231 and this second wind-guiding The second breach 238 between wall 234.In Fig. 5, this drivewheel 221, follower 225 are changed with main shaft 203 with vacation for convenience of description Think that line is drawn, and clipped component.

This first air guiding wall 231 have one towards this follower 225 direction the first initiating terminal 232, and one by this first Initiating terminal 232 with the counter clockwise direction of Fig. 5 along this drivewheel 221 active drive disk 222 outer rim curved arc extend first terminal 233, the beeline between this first initiating terminal 232 and this main shaft 203 is less than between this first terminal 233 and this main shaft 203 Short distance.

This second air guiding wall 234 have one towards this first terminal 233 direction the second initiating terminal 235, and one by this Two initiating terminals 235 are extended and towards this along the active drive disk 222 outer rim curved arc of this drivewheel 221 with the counter clockwise direction of Fig. 5 The second terminal 236 in follower 225 direction, the beeline between this second initiating terminal 235 and this main shaft 203 is less than this second end Beeline between end 236 and this main shaft 203.This first breach 237 is between this first initiating terminal 232 and this second terminal Between 236, and this second breach 238 is between this first terminal 233 and this second initiating terminal 235.

Refering to Fig. 4,5, and look back Fig. 3 in the lump, the gas being flowed into by this air inlet 202 can flow to this appearance through this opening 214 216 between being empty, not only can cool down this active drive disk 222, coordinate the rotation of this active drive disk 222 also to drive air-flow such as Fig. 5 Direction shown in middle arrow 31 is mobile along this first air guiding wall 231.

When air-flow movement is to this second breach 238, has portion gas and flowed out by this second breach 238, and as in Fig. 4 Direction shown in arrow 32 is moved towards this active slip disk 223 direction, and portion gas then continue side as shown in arrow 33 in Fig. 5 Move to along this second air guiding wall 234.

This active slip disk 223 not only can be cooled down towards the gas of this active slip disk 223 direction movement moreover it is possible to as Fig. 4 Arrow 34 cools down this passive matrix disk 227 towards this passive matrix disk 227 direction movement to continue along this gear shift cover 215；And Gas along this second air guiding wall 234 movement is finally as shown in Fig. 4 arrow 35, flows to this passive cunning by this first breach 237 Moving plate 226, with this passive slider disc 226 of cooling and this driving member 228 of continuing, eventually via this outlet 219 and this air-out Mouth 217 discharge.Thereby, this active drive disk 222, active slip disk 223, passive matrix disk 227 and this passive slider disc are made 226, and this driving member 228 can equably accept gas cooling, and then make the cooling effect of this continuous variable speed unit 22 more For uniform.

Refering to Fig. 6, the second preferred embodiment of continuously variable transmission device 2 of the present invention, generally with this first preferred embodiment Similar, the place differing is：This wind deflector unit 23 also include one by this first air guiding wall 231 towards away from this main shaft 203 with The retaining wall 239 that this second air guiding wall 234 direction is extended and is connected around portion 213 with this gearbox body 211.

Due to this preferred embodiment be about similar to this first preferred embodiment, therefore, except can reach with this Moreover it is possible to flow to the gas in this air outlet 217 direction using this retaining wall 239 block outside one preferred embodiment identical effect, it is subject to The rotation of this drivewheel 221 affects and adverse current, to maintain stable specific gas flow rate.

In sum, continuously variable transmission device 2 of the present invention is using this first air guiding wall 231 separately and this second air guiding wall 234, and this first breach 237 and this second breach 238, enable the air-flow being flowed into by this air inlet 202 to flow uniformly through master Dynamic drive disk 222 and this active slip disk 223, this passive slider disc 226 and this passive matrix disk 227 and this driving member 228, So that the cooling effect of this continuous variable speed unit 22 is more uniformly distributed, therefore really can reach the purpose of the present invention.

The above, only presently preferred embodiments of the present invention and it is impossible to this limit the present invention enforcement scope, that is, all The simple equivalence changes made according to claims of the present invention and description of the invention and modification, all still belong to patent of the present invention In the range of covering.

Reference numerals list

2 continuously variable transmission devices

200 engines

201 crankcases

202 air inlets

203 main shafts

21 change speed gear boxes

211 gearbox bodys

212 bodies

213 around portion

214 openings

215 gear shift covers

216 accommodation spaces

217 air outlets

218 nose sections

219 outlets

22 continuous variable speed units

221 drivewheels

222 active drive disks

223 active slip disks

224 power transmission shafts

225 followers

226 passive slider disc

227 passive matrix disks

228 driving members

23 wind deflector unit

231 first air guiding walls

232 first initiating terminals

233 first terminals

234 second air guiding walls

235 second initiating terminals

236 second terminals

237 first breach

238 second breach

239 retaining walls

31～35 arrows

R arrow

F arrow

Claims

1. a kind of continuously variable transmission device is it is adaptable on the engine of a vehicle, this engine includes a song being formed with an air inlet Axle box, and a main shaft stretching through out this crankcase, this continuously variable transmission device comprise a change speed gear box combining with this crankcase, one It is arranged at the continuous variable speed unit in this change speed gear box, and one is correspondingly arranged in the wind-guiding in this change speed gear box with this continuous variable speed unit Unit, this change speed gear box is formed with an opening being connected with the air inlet of this crankcase, and this main shaft stretches into this speed change by this opening Case, this continuous variable speed unit include one be arranged on this main shaft and to should opening and be located in this change speed gear box drivewheel, one With this main shaft interval be hubbed at the power transmission shaft of this change speed gear box, one be arranged on this power transmission shaft and be located in this change speed gear box passive Wheel, and one be sheathed on driving member on this drivewheel and this follower, this drivewheel includes be arranged at intervals on this main shaft one Active drive disk and an active slip disk, this follower includes the passive matrix disk being arranged at intervals on this power transmission shaft and a quilt Dynamic slider disc, this driving member is to be sheathed on this active drive disk and this active slip disk, and this passive matrix disk and this passive cunning Between Moving plate it is characterised in that：

Wind deflector unit this include one be located at this change speed gear box in and along this active drive disk outer rim curved arc extend the first air guiding wall, one In this change speed gear box and with this first air guiding wall at intervals along this active drive disk outer rim curved arc extend the second air guiding wall, One is formed between this first air guiding wall and this second air guiding wall and the first breach towards this follower direction, and one with this One breach contrary and between this first air guiding wall and this second air guiding wall the second breach.

2. continuously variable transmission device according to claim 1, wherein, this first air guiding wall has one towards this follower direction The first initiating terminal, and one along this drivewheel outer rim curved arc extend and the first terminal in contrast to this first initiating terminal, this first Beeline between initiating terminal and this main shaft is less than the beeline between this first terminal and this main shaft, and this second air guiding wall has One towards this first terminal direction the second initiating terminal, and one along this drivewheel outer rim curved arc extend and towards this follower direction Second terminal, the beeline between this second initiating terminal and this main shaft is less than short distance between this second terminal and this main shaft It is between this first initiating terminal and this second terminal from, this first breach, and this second breach is between this first terminal And this second initiating terminal between.

3. continuously variable transmission device according to claim 2, wherein, this change speed gear box includes a speed change being incorporated into this crankcase Casing, one match with this gearbox body and define the gear shift cover of an accommodation space, and one convexedly stretches in this gearbox body and company Lead to the air outlet of this accommodation space, this opening is formed at housing with this to connect the air inlet of this crankcase on this gearbox body Space, and this continuous variable speed unit and this wind deflector unit are in this accommodation space.

4. continuously variable transmission device according to claim 3, wherein, this air outlet is to protrude from song backward by this gearbox body The part of axle box extends obliquely out towards this crankcase rear.

5. continuously variable transmission device according to claim 3, wherein, this gearbox body have one towards this crankcase body Portion, and one around this body periphery around portion, this opening is formed on this body to connect the air intake of this crankcase Mouth and this accommodation space, and this first air guiding wall and this second air guiding wall are convex towards this gear shift cover direction by this body Stretch, this air outlet is to be extended obliquely out towards this crankcase rear by the part that the body of this change speed gear box protrudes from crankcase backward.

6. continuously variable transmission device according to claim 5, wherein, this wind deflector unit also includes one by this first air guiding wall court The retaining wall extending with this second air guiding wall direction away from this main shaft and being connected around portion with this gearbox body.

7. continuously variable transmission device according to claim 3, wherein, the gearbox body of this change speed gear box and gear shift cover be all with Plastic cement ejection formation is made.

8. the continuously variable transmission device according to claim 5 or 6, wherein, the body of this gearbox body have one towards away from This air inlet direction protrudes from crankcase and is formed with the nose section of an outlet, this air outlet be by this outlet towards after this crankcase Side extends obliquely out.