CN104364557B - Buncher - Google Patents

Abstract

A kind of buncher that can suppress to correct error is provided.The case of transmission (30) of buncher possesses: end wall portion (32), and it is positioned at the end side of power shaft and output shaft；Another end wall (34), it is positioned at another side of power shaft and output shaft；And surrounding wall portion (40), another end wall (34) and end wall portion (32) are linked together by it to exist in the way of compartment of terrain covers toggle (20).At one end it is provided with end side notch (50 (52,54)) on wall portion (32).Surrounding wall portion (40) is provided with perisporium side notch (56).Perisporium side notch (56) and end side notch (50) are constituted such that case of transmission (30) has flexibility.

Description

Buncher

Technical field

The present invention relates to the buncher of four joint linkage types, it is regulated by the radius of turn being arranged at power shaft The radius of the rotary motion of mechanism's regulation power shaft side, the most freely carries out speed change.

Background technology

In the past, it is known that possess the buncher of four joint linkage types of following part: power shaft, it is communicated to certainly The driving force in the traveling driving sources such as the electromotor being arranged at vehicle；Output shaft, it configures abreast with power shaft；Multiple rotations Radius governor motion, they are arranged at power shaft；Multiple forks, they are supported on output shaft by rotatably axle；And even Bar, this connecting rod has the rotatably outer input side annulus being embedded in radius of turn governor motion, this connecting rod an end The swing end of another end and fork link (for example, referring to Japanese Unexamined Patent Application Publication 2005-502543 publication).

In the technology of patent documentation 1, each radius of turn governor motion is made up of following part: be arranged at input prejudicially The cam disc of axle；Eccentric and be rotatably arranged at the rotating disk of this cam disc；And pinion shaft.It addition, fork with One-way clutch it is provided with between output shaft.One-way clutch will pendulum when fork is intended to rotate against to side relative to output shaft Bar is fixed on output shaft, and makes fork empty relative to output shaft when fork is intended to rotates against to opposite side relative to output shaft Turn.

Each cam disc possesses: through hole, its axially penetrating through along power shaft；And incision hole, its be arranged on relative to The position that the eccentric direction of power shaft is opposed, makes the outer peripheral face of cam disc connect with through hole.It addition, incision hole be arranged on from An axial end face of cam disc is in the range of another end face.Adjacent cam disc is fixed each other by bolt, thus Constitute cam disc union body.Axial one end of cam disc union body links with power shaft, by cam disc union body and power shaft Constitute camshaft.

Cam disc union body becomes hollow, in this cam disc union body by being connected by the through hole of each cam disc Portion is inserted with pinion shaft.The pinion shaft inserted exposes from the incision hole of each cam disc.It is provided with storage on the rotating pan convex The reception hole of wheel shaft.The inner peripheral surface forming this reception hole in rotating disk is formed with internal tooth.

The pinion shaft that internal tooth exposes with the incision hole from camshaft engages.Make power shaft and pinion shaft with same speed When degree rotates, the radius of the rotary motion of the power shaft side of radius of turn governor motion is maintained.Make power shaft and little gear During the rotating speed difference of axle, the radius of the rotary motion of the power shaft side of radius of turn governor motion is changed, and gear ratio becomes Change.

When by making power shaft rotation make radius of turn governor motion rotate, the input side annulus of connecting rod revolves Transhipment is dynamic, and the swing end that another end with connecting rod of fork links swings.That is, radius of turn governor motion, company Bar and fork constitute toggle.Fork is arranged at output shaft via one-way clutch, therefore, only at fork to one Rotary driving force (moment of torsion) is transferred to output shaft when rotating by side.

The eccentric direction of the cam disc of each radius of turn governor motion be configured to make respective phase place different and around input Axle one week.Therefore, by being embedded in outward the connecting rod of each radius of turn governor motion, fork transfers a torque to output shaft successively, because of This can make output shaft rotate swimmingly.

Citation

Patent documentation

Patent documentation 1: Japanese Unexamined Patent Application Publication 2005-502543 publication

Summary of the invention

The problem that invention is to be solved

In buncher, along with the change of the radius of the rotary motion realized by radius of turn governor motion, The load applied on the bearing of supporting power shaft and output shaft changes.It addition, each toggle transmission power Moment is different.Therefore, for buncher, compared with the variator of parallel shaft type or planetary gears type etc., input Axle or output shaft easily bend, thus the angle of the inner ring and outer ring that can support the bearing of these axles offsets such correction Error.

In view of the above problems, it is an object of the invention to provide a kind of buncher that can suppress to correct error.

For solving the means of problem

[1] to achieve these goals, the present invention is a kind of buncher, this buncher, power shaft, and it rotates It is arranged in freely in transmission case body, is communicated to from travelling with the driving force in driving source；Output shaft, its rotatably and It is arranged in abreast in described transmission case body with described power shaft；Multiple toggles, they have and are swung freely Ground axle suspension fork on described output shaft, is converted to the oscillating motion of described fork by the rotary motion of described power shaft； And single direction rotation stops mechanism, it is arranged between described fork and described output shaft, is being intended to relative to described output shaft When rotating against to side, this fork is fixed on described output shaft, rotates against relative to the axial opposite side of described output being intended to Time make this fork dally relative to described output shaft, described toggle possesses and is free to regulate described power shaft side The radius of turn governor motion of radius of rotary motion, described buncher is characterised by, described case of transmission has Standby: end wall portion, it is positioned at described power shaft and the end side of described output shaft；Another end wall, it is positioned at described power shaft Another side with described output shaft；And surrounding wall portion, it will in the way of compartment of terrain covers described toggle to exist Another end wall described and described end wall portion link together, and the end side at described power shaft is provided with one end input side shaft Hold, be provided with storage one end input side fixed part of fixing described one end input side bearing in described end wall portion, described defeated The end side entering axle is supported by described end wall portion, at described output shaft freely via described one end input side bearing rotary End side is provided with one end outlet side bearing, is provided with storage in described end wall portion and fixes described one end outlet side bearing One end outlet side fixed part, the end side of described output shaft via described one end outlet side bearing rotary freely by described one end Wall portion supports, and described end wall portion is provided with end side notch, described surrounding wall portion is provided with perisporium side notch, described Perisporium side notch and described end side notch are constituted such that described case of transmission has flexibility.

According to the present invention, and due to scratching from the power shaft caused by the transmission of the load of toggle or output shaft Bent corresponding, case of transmission also is able to flexure.Thus, the outer ring of bearing is also to follow the side that the angle of the inner ring of bearing changes Formula makes its angle change, therefore, it is possible to reduce the inner ring of bearing and the difference of the angle of outer ring such that it is able to suppression correction error.

[2] it addition, in the present invention, it is preferred that make surrounding wall portion be configured to truss by forming perisporium side notch Shape, utilizes by molded and be arranged at the resin of surrounding wall portion and cover perisporium side notch.

According to this structure, improve the attenuation characteristic of the vibration of surrounding wall portion by resin such that it is able to reduce infinitely variable speeds The noise of device and vibration.Overflow it addition, be prevented from lubricating oil from perisporium side notch such that it is able to moisten in variator The circulation of lubricating oil.

[3] it addition, the most preferably, radius of turn governor motion possesses regulation driving source, regulation is used End wall portion is fixed on via differential attachment in driving source, utilizes the oil lubrication differential attachment flowed out from end side notch.

According to this structure, end side notch has the function of the lubricant oil way leading to differential attachment concurrently, and is different from one The situation of side notch and the lubricant oil way that arranges differential attachment separately on case of transmission etc. is compared, it is possible to realize The miniaturization of buncher.

[4] it addition, the most preferably, other end wall site is made to drive source in traveling.

According to this structure, drive in traveling another end wall of source to be not provided with notch, use driving source in traveling The end wall portion of the opposition side of side is provided with end side notch.Therefore, another end wall is different from end wall portion, it is not easy to scratch Bent, it is possible to prevent the flexure of power shaft from also traveling driving source is produced impact.

Accompanying drawing explanation

Fig. 1 is the sectional view of an embodiment of the buncher illustrating the present invention.

Fig. 2 is from axially illustrating the radius of turn governor motion of present embodiment, connecting rod, the explanatory diagram of fork.

Fig. 3 is the explanatory diagram that the change of the radius of turn of the radius of turn governor motion to present embodiment illustrates.

Fig. 4 is the change oscillating motion with fork of the radius of turn of the radius of turn governor motion illustrating present embodiment Angle of oscillation between the explanatory diagram of relation, the swing of the oscillating motion of fork when wherein (a) shows radius of turn maximum Angle, (b) shows the angle of oscillation of the oscillating motion of fork when radius of turn is medium, and (c) shows radius of turn hour The angle of oscillation of the oscillating motion of fork.

Fig. 5 is the fork corresponding with the change of the radius of turn of radius of turn governor motion illustrating present embodiment The curve chart of the change of angular velocity omega.

Fig. 6 is to be shown in the buncher of present embodiment to utilize phase place to stagger respectively 6 crank connecting links of 60 degree Mechanism makes the curve chart of the state that output shaft rotates.

Fig. 7 is the axonometric chart of the case of transmission illustrating present embodiment when eliminating resin.

Fig. 8 is the axonometric chart of the case of transmission illustrating present embodiment.

Detailed description of the invention

Hereinafter, the embodiment of the buncher of the four joint linkage types of the present invention is illustrated.This embodiment party The buncher of formula be gear ratio i (rotating speed of the rotating speed/output shaft of i=power shaft) can be made for infinitely great (∞) so that The rotating speed of output shaft is the variator of " 0 ", the most so-called Limitless speed variator (Infinity Variable Transmission (IVT) one).

Seeing figures.1.and.2, the buncher 1 of present embodiment possesses；The power shaft 2 of hollow, it accepts from omission Internal combustion engine i.e. electromotor or the motor etc. of diagram travels with the rotary driving force in driving source, thus to input central axis P1 Centered by rotate；Output shaft 3, it is configured to parallel with power shaft 2, and via figure outside differential gear or power transmission shaft etc. will Rotary power is transferred to the driving wheel (omitting diagram) of vehicle；And 6 radius of turn governor motions 4, they are arranged at defeated Enter axle 2.

Each radius of turn governor motion 4 possesses cam disc 5 and rotating disk 6.Cam disc 5 is discoid, and it is with from input Mandrel line P1 mode 2 that is eccentric and that rotate integratedly with power shaft 2 is respectively arranged at power shaft 2 with becoming one group.Every 1 group of cam Dish 5 phase place differs 60 degree respectively, thus configures in the way of one week around the circumference of power shaft 2 by 6 groups of cam discs 5.It addition, possess receipts Receive cam disc 5 reception hole 6a discoid rotating disk 6 by eccentric and rotatable in the way of outside be embedded in every 1 group of cam disc 5.

Rotating disk 6 is eccentric relative to cam disc 5 in the following manner: set the central point of cam disc 5 as P2, if rotating disk 6 Central point is P3, the distance between distance Ra and center point P 2 and center point P 3 between input central axis P1 and center point P 2 Rb is equal.

In the reception hole 6a of rotating disk 6, in the way of between 1 group of cam disc 5, it is provided with internal tooth 6b.At power shaft On 2, between 1 group of cam disc 5 and the position opposed with the eccentric direction of cam disc 5, it is formed and makes inner peripheral surface and periphery Incision hole 2a of face connection.

In the power shaft 2 of hollow, in the way of rotating against freely, it is configured with pinion shaft 7 with power shaft 2, this little tooth Wheel shaft 7 configures with one heart with power shaft 2, and possesses external tooth 7a at the position corresponding with rotating disk 6.The external tooth 7a of pinion shaft 7 Engage with the internal tooth 6b of rotating disk 6 via incision hole 2a of power shaft 2.

Pinion shaft 7 connects and has differential attachment 8.Differential attachment 8 is made up of planetary gears, this differential attachment 8 Possess: central gear 9；The 1st gear ring 10 being linked on power shaft 2；The 2nd gear ring 11 being linked on pinion shaft 7；And planet Frame 13, little for band ladder gear 12 axle is supported to be free to rotation and revolution by it, the described little gear of band ladder 12 by with too The large-diameter portion 12a and the minor diameter part 12b engaged with the 2nd gear ring 11 of sun gear the 9 and the 1st gear ring 10 engagement are constituted.

Being linked with rotary shaft 14a in regulation driving source 14 on central gear 9, this regulation driving source 14 is by little gear The motor of axle 7 is constituted.If the rotating speed making regulation driving source 14 is identical with the rotating speed of power shaft 2, then central gear 9 He 1st gear ring 10 rotates with same speed, and central gear the 9, the 1st gear ring the 10, the 2nd gear ring 11 and these 4 components of planet carrier 13 become The lock-out state that can not rotate against, the pinion shaft 7 linked with the 2nd gear ring 11 rotates with same speed with power shaft 2.

If the rotating speed making the rotating ratio power shaft 2 in regulation driving source 14 is slow, if the rotating speed of central gear 9 is Ns, if The rotating speed of the 1st gear ring 10 is Nr1, if the gear ratio (number of teeth/central gear 9 of the 1st gear ring 10 of central gear the 9 and the 1st gear ring 10 The number of teeth) be j, then the rotating speed of planet carrier 13 is (j Nr1+Ns)/(j+1).Further, if setting central gear the 9 and the 2nd gear ring Gear ratio ((number of teeth of the number of teeth/central gear 9 of the 2nd gear ring 11) × (tooth of the large-diameter portion 12a of the little gear of band ladder 12 of 11 The number of teeth of number/minor diameter part 12b)) be k, then the rotating speed of the 2nd gear ring 11 is { j (k+1) Nr1+ (k-j) Ns}/{ k (j+1) }.

Be fixed with the rotating speed of power shaft 2 of cam disc 5 identical with the rotating speed of pinion shaft 7 in the case of, rotating disk 6 with Cam disc 5 rotates integratedly.In the case of there are differences between the rotating speed and the rotating speed of pinion shaft 7 of power shaft 2, rotating disk 6 centered by the center point P 2 of cam disc 5 cam disc 5 periphery rotate.

As in figure 2 it is shown, due to rotating disk 6 relative to cam disc 5 in the way of distance Ra and distance Rb are equal eccentric, because of This, additionally it is possible to make the distance between input central axis P1 and center point P 3, i.e. offset R1 for " 0 " so that in rotating disk 6 Heart point P3 is positioned on the axis identical with input central axis P1.

Connecting rod 15 possesses the big footpath annulus 15a in big footpath an end, and possesses more ring-type than big footpath in another end The path annulus 15b that the diameter of portion 15a is little, the big footpath annulus 15a of this connecting rod 15 is by the pitman shaft being made up of ball bearing Hold 16 peripheries being rotatably embedded in outward rotating disk 6.On output shaft 3, with connecting rod 15 accordingly via as unidirectional rotation Turn and stop the one-way clutch 17 of mechanism to be provided with 6 forks 18.

The one-way clutch 17 stoping mechanism as single direction rotation is arranged between fork 18 and output shaft 3, and this is unidirectional Fork 18 is fixed on output shaft 3 when being intended to rotate against to side relative to output shaft 3 by clutch 17, is being intended to opposite side phase Fork 18 is made to dally relative to output shaft 3 to when rotating.Fork 18 is being in by one-way clutch 17 relative to output shaft 3 Swing freely relative to output shaft 3 during the state dallied.

Fork 18 is formed as ring-type, is provided with the swing end that the path annulus 15b with connecting rod 15 links above it 18a.Being provided with a pair tab 18b swinging end 18a, this pair tab 18b is to sandwich path annulus 15b in the axial direction Mode highlights.A pair tab 18b is formed the through hole 18c corresponding with the internal diameter of path annulus 15b.At through hole 18c and path annulus 15b is inserted with connecting pin 19.Thus, together with connecting rod 15 is attached at fork 18.

Fig. 3 be pinion shaft under the state that the offset R1 being shown in and making radius of turn governor motion 4 changes 7 with Position relationship between rotating disk 6.(a) of Fig. 3 shows the state making offset R1 " maximum ", pinion shaft 7 and rotating disk 6 It is in the position making input central axis P1, the center point P 2 of cam disc 5, the center point P 3 of rotating disk 6 be arranged in straight line. Gear ratio i now is minimum.

(b) of Fig. 3 shows the state making offset R1 be " medium " less than (a) of Fig. 3, and (c) of Fig. 3 shows and make Offset R1 is the state of " little " less than (b) of Fig. 3.In (b) of Fig. 3, gear ratio i is the gear ratio of (a) than Fig. 3 " medium " that i is big, in (c) of Fig. 3, gear ratio i is " greatly " bigger than gear ratio i of (b) of Fig. 3.(d) of Fig. 3 shows The state making offset R1 be " 0 ", the center point P 3 of input central axis P1 and rotating disk 6 is positioned at concentric position.Now Gear ratio i becomes infinitely great (∞).The buncher 1 of present embodiment utilizes radius of turn governor motion 4 to change offset R1, it is possible to freely regulate the radius of the rotary motion of power shaft 2 side.

As in figure 2 it is shown, the radius of turn governor motion 4 of present embodiment, connecting rod 15, fork 18 constitute crank connecting link machine Structure 20 (four joint linkages).Further, utilize toggle 20 that the rotary motion of power shaft 2 is converted to the pendulum of fork 18 Dynamic motion.The buncher 1 of present embodiment possesses 6 toggles 20 altogether.If not being " 0 " at offset R1 Time make power shaft 2 rotate and make pinion shaft 7 rotate with same speed with power shaft 2, the most each connecting rod 15 every 60 degree change phases Position, is simultaneously based on offset R1 and the most repeatedly pushes or to power shaft 2 to output shaft 3 side between power shaft 2 and output shaft 3 Side-lining and swing.

The path annulus 15b of connecting rod 15 links with fork 18, and this fork 18 is arranged at output via one-way clutch 17 Axle 3, therefore, if fork 18 is swung, the most only at fork 18 to press direction side or lead side by connecting rod 15 push-and-pull Any one side rotate time, output shaft 3 just rotates, and when fork 18 rotates to opposite side, the power of the oscillating motion of fork 18 does not has Being passed to output shaft 3, fork 18 dallies.Each radius of turn governor motion 4 be configured to every 60 degree change phase places, therefore, Output shaft 3 is rotated successively by each radius of turn governor motion 4.

(a) of Fig. 4 shows in the situation (gear ratio i is minimum situation) of " maximum " of (a) that offset R1 is Fig. 3 Hunting range θ 2 of the corresponding fork 18 of the rotary motion with radius of turn governor motion 4, (b) of Fig. 4 shows bias Amount R1 is in the situation (gear ratio i is medium situation) of " medium " of (b) of Fig. 3 and the rotation of radius of turn governor motion 4 Hunting range θ 2 of the dynamic corresponding fork 18 of transhipment, (c) of Fig. 4 shows the situation of " little " of (c) that offset R1 is Fig. 4 The hunting range of the fork 18 that the rotary motion with radius of turn governor motion 4 under (gear ratio i is big situation) is corresponding θ2.Being clear that according to Fig. 4, along with offset R1 diminishes, hunting range θ 2 of fork 18 narrows.Further, at offset R1 During for " 0 ", fork 18 does not swings.It addition, in the present embodiment, by hunting range θ 2 of the swing end 18a of fork 18 The position closest to power shaft 2 as inner dead point, using the position farthest away from power shaft 2 as outer dead point.

Fig. 5 is with anglec of rotation θ of the radius of turn governor motion 4 of buncher 1 as transverse axis and with the angle speed of fork 18 Degree ω is the longitudinal axis, it is shown that the change of the angular velocity omega that the change with the offset R1 of radius of turn governor motion 4 is accompanied Relation.Being clear that according to Fig. 5, offset R1 the biggest (gear ratio i is the least), the angular velocity omega of fork 18 becomes the biggest.

Fig. 6 shows and makes stagger respectively 6 radius of turn governor motions 4 of 60 degree when rotating of phase place (make power shaft 2 and little When gear shaft 7 rotates with same speed) the angle of the corresponding each fork 18 of anglec of rotation θ with radius of turn governor motion 4 Speed omega.According to Fig. 6, by 6 toggles 20, output shaft 3 is rotated swimmingly.

Compartment of terrain is there is and covers in 6 toggles 20 by case of transmission 30.Case of transmission 30 possesses: end wall Portion 32, it is configured with regulation driving source 14 via differential attachment 8；Another end wall 34, it is configured to and end wall portion 32 is opposed, and is positioned at traveling driving source (another side)；And surrounding wall portion 40, its ora terminalis from end wall portion 32 is towards separately End wall portion 34 extends integratedly, and is fixed on another end wall 34 by bolt 36.

At one end wall portion 32 is provided through poroid one end input side fixed part 44, and this one end input side fixed part 44 is used In being supported to be free to rotate via one end input side bearing 42 by the end side of power shaft 2.One end input side bearing 42 It is contained and is fixed on this one end input side fixed part 44.

At one end wall portion 32 is provided through poroid one end outlet side fixed part 48, and this one end outlet side fixed part 48 is used In being supported to be free to rotate via one end outlet side bearing 46 by the end side of output shaft 3.One end outlet side bearing 46 It is contained and is fixed on this one end outlet side fixed part 48.

It addition, at one end wall portion 32 is provided with the multiple end side otch penetratingly carrying out otch along thickness of slab direction and obtain Portion 50.End side notch 50 is made up of following part: multiple radial side notch 52, and they are positioned at poroid one end input side The surrounding of fixed part 44 and run through setting；With multiple between centers notch 54, they are positioned at one end input side fixed part 44 and Hold between outlet side fixed part 48 and run through setting.

Multiple perisporium sides notch 56 of triangle it is provided with in surrounding wall portion 40.By this perisporium side notch 56, week Wall portion 40 is the most so configured to truss-like.

As shown in Figure 8, a part of between centers notch 54 being positioned at radial outside in multiple between centers notch 54 and perisporium Side notch 56 is hidden by being covered by resin 58 that is molded and that arrange.Thus, improve surrounding wall portion by resin 58 The attenuation characteristic of the vibration of 40 such that it is able to reduce noise and the vibration of buncher 1.It addition, be prevented from lubricating oil from Perisporium side notch 56 and a part of between centers notch 54 overflow such that it is able to be lubricated following of oil in buncher 1 Ring.

It addition, the radial side notch 52 in end wall portion 32 is covered by the differential attachment housing 8a of differential attachment 8.And structure Become, the lubricating oil in the case of transmission 30 that the radial side notch 52 of the part as end side notch 50 flows out Flow in differential attachment housing 8a.Thus, differential attachment 8 is flowed into the profit in differential attachment housing 8a from radial side notch 52 Oil lubrication.Therefore, end side notch 50 has the function of the lubricant oil way leading to differential attachment 8 concurrently, and is different from one end Side notch 50 and the situation of the lubricant oil way that arranges differential attachment 8 separately in case of transmission 30 grade are compared, it is possible to Realize the miniaturization of buncher 1.

Buncher 1 according to present embodiment, makes to become by end side notch 50 and perisporium side notch 56 The elasticity (flexible) of speed device housing 30 becomes than ever greatly, and case of transmission 30 also is able to corresponding to power shaft 2 or output shaft 3 Bend and bent by elasticity.Thus, the outer ring of one end input side bearing 42 also is able to follow one end input side bearing The mode of the angle change of the inner ring of 42 makes its angle change, therefore, it is possible to reduce the inner ring of one end input side bearing 42 with outer Angle (plane vertical with the input central axis P1 of power shaft 2 and the inner ring of one end input side bearing 42 or the outer ring institute of circle Formed angle) difference such that it is able to suppression correction error.

It addition, in conventional variator, the rigidity of case of transmission is higher (elastic relatively low), when the load from connecting rod 15 When lotus puts on power shaft 2, power shaft 2 significantly bends.Therefore, the angle of bend of power shaft 2 easily becomes big, by ball bearing structure It is likely to produce big correction error on the inner ring of the connecting-rod bearing 16 become and outer ring.

, according to the buncher 1 of present embodiment, the elasticity of case of transmission 30 is higher, even if from connecting rod 15 Power shaft 2 is applied big load, it is also possible to avoid this load by case of transmission 30 such that it is able to suppression power shaft 2 Bending.Therefore, according to the buncher 1 of present embodiment, it is possible to reduce the inner ring of the connecting-rod bearing 16 and outer ring angle (with The angle that the plane vertical for input central axis P1 of power shaft 2 and the inner ring of one end input side bearing 42 or outer ring are formed) it Difference such that it is able to the inner ring of the suppression connecting-rod bearing 16 and the correction error of outer ring.

It addition, according to the buncher 1 of present embodiment, drive another end wall 34 of source not set in traveling Put notch.Therefore, another end wall 34 is different from end wall portion 32, it is not easy to flexure, it is possible to the flexure preventing power shaft 2 is right Travel and produce impact with driving source.

Further, about the buncher 1 of present embodiment, following situation is illustrated: radial side notch 52 It is provided only on one end input side fixed part 44 around, and is not provided with at one end that outlet side bearing 46 is around., this The radial side notch of bright end side notch is not limited to this, and at one end the surrounding of outlet side fixed part 48 can also be arranged Radial side notch.

It addition, in the present embodiment, stop mechanism as single direction rotation, employ one-way clutch 17, but, this Bright single direction rotation stops mechanism to be not limited to this, it is also possible to by can by moment of torsion from fork 18 be transferred to output shaft 3, be configured to It is free to switch fork 18 constitute relative to the bidirectional clutch (twocouese clutch) of the direction of rotation of output shaft 3.

Label declaration

1: buncher；

2: power shaft；

2a: incision hole；

3: output shaft；

4: radius of turn governor motion；

5: cam disc；

6: rotating disk；

6a: reception hole；

6b: internal tooth；

7: pinion shaft；

7a: external tooth；

8: differential attachment (planetary gears)；

8a: differential attachment housing；

9: central gear；

10: the 1 gear rings；

11: the 2 gear rings；

12: the little gear of band ladder；

12a: large-diameter portion；

12b: minor diameter part；

13: planet carrier；

14: driving source (motor) is used in regulation；

14a: rotary shaft；

15: connecting rod；

15a: big footpath annulus；

15b: path annulus；

16: the connecting-rod bearing；

17: one-way clutch (single direction rotation stops mechanism)；

18: fork；

18a: swing end；

18b: tab；

18c: through hole；

19: connecting pin；

20: toggle (four joint linkages)；

30: case of transmission；

32: end wall portion；

34: another end wall；

36: bolt；

40: surrounding wall portion；

42: one end input side bearing；

44: one end input side fixed part；

46: one end outlet side bearing；

48: one end outlet side fixed part；

50: end side notch；

52: radial side notch；

54: between centers notch；

56: perisporium side notch；

58: resin；

P1: input central axis；

The central point of P2: cam disc；

The central point of P3: rotating disk；

Distance between Ra:P1 and P2；

Distance between Rb:P2 and P3；

R1: offset (distance between P1 and P3)；

θ 2: hunting range.

Claims (6)

1. a buncher, this buncher possesses:

Power shaft, it is rotatably arranged in transmission case body, is communicated to from travelling with the driving force in driving source；

Output shaft, it rotatably and is arranged in described transmission case body abreast with described power shaft；

Multiple toggles, they have and are supported on the fork on described output shaft by rotatably axle, by described defeated The rotary motion entering axle is converted to the oscillating motion of described fork；And

Single direction rotation stops mechanism, and it is arranged between described fork and described output shaft, is being intended to relative to described output shaft When rotating against to side, this fork is fixed on described output shaft, rotates against relative to the axial opposite side of described output being intended to Time make this fork dally relative to described output shaft,

Described toggle possesses the radius of turn being free to regulate the radius of the rotary motion of described power shaft side Governor motion,

Described buncher is characterised by,

Described case of transmission possesses: end wall portion, and it is positioned at described power shaft and the end side of described output shaft；Another end wall Portion, it is positioned at another side of described power shaft and described output shaft；And surrounding wall portion, it covers described song there is compartment of terrain Another end wall described and described end wall portion are linked together by the mode of handle linkage,

End side at described power shaft is provided with one end input side bearing,

Storage one end input side fixed part of fixing described one end input side bearing it is provided with in described end wall portion, described defeated The end side entering axle is supported by described end wall portion freely via described one end input side bearing rotary,

End side at described output shaft is provided with one end outlet side bearing,

Storage one end outlet side fixed part of fixing described one end outlet side bearing it is provided with in described end wall portion, described defeated The end side of shaft is supported by described end wall portion freely via described one end outlet side bearing rotary,

Described end wall portion is provided with end side notch,

Described surrounding wall portion is provided with perisporium side notch,

Described perisporium side notch and described end side notch are constituted such that described case of transmission has flexibility.

Buncher the most according to claim 1, it is characterised in that

Described surrounding wall portion is configured to truss-like by forming described perisporium side notch,

Described perisporium side notch is by by molded and be arranged at the resin of described surrounding wall portion and cover.

Buncher the most according to claim 2, it is characterised in that

Described radius of turn governor motion possesses regulation driving source,

This regulation driving source is fixed in described end wall portion via differential attachment,

The oil lubrication that described differential attachment is flowed out from described end side notch.

Buncher the most according to claim 3, it is characterised in that

Described other end wall site drives source in described traveling.

Buncher the most according to claim 1, it is characterised in that

Described radius of turn governor motion possesses regulation driving source,

This regulation driving source is fixed in described end wall portion via differential attachment,

The oil lubrication that described differential attachment is flowed out from described end side notch.

Buncher the most according to claim 1, it is characterised in that

Described other end wall site drives source in described traveling.