CN105090444B

CN105090444B - Buncher

Info

Publication number: CN105090444B
Application number: CN201510229736.0A
Authority: CN
Inventors: 高杉将司
Original assignee: Honda Motor Co Ltd
Current assignee: Honda Motor Co Ltd
Priority date: 2014-05-07
Filing date: 2015-05-07
Publication date: 2017-08-08
Anticipated expiration: 2035-05-07
Also published as: JP2015214991A; CN105090444A; JP6180993B2

Abstract

The present invention provides a kind of buncher, and it realizes the expansion in the gap between the lasso and rolling element of the bearing that can suppress to support input shaft and output shaft and improves the structure of NVH deterioration.Buncher has input shaft, output shaft, toggle, single direction rotation prevents mechanism and case of transmission, the case of transmission has side of sidewall portion, the side of sidewall portion supports the both ends of the input shaft by means of input shaft bearing, and by means of the both ends for exporting output shaft described in bearings, the position of the lasso for supporting the input shaft bearing and the output bearing on the side of sidewall portion is relative to the center in the input shaft bearing and the axial direction of the rolling element of the output bearing, offset to the shaft end side of the input shaft and the nearside of the output shaft supported respectively by the input shaft bearing and the output bearing.

Description

Buncher

Technical field

The present invention relates to the vibration attenuating structure of the buncher of four section linkage types.

Background technology

For example, four following section linkage type bunchers are described in Japanese Unexamined Patent Publication 2012-1048 publications, It is by the reciprocating motion for being converted to connecting rod for the input shaft being connected with engine, by one-way clutch by the reciprocal of connecting rod Motion is converted to the rotary motion of output shaft.

In above-mentioned Japanese Unexamined Patent Publication 2012-1048 publications, the both ends of input shaft and output shaft are via a pair of bearings Axle is supported on the side of sidewall portion of case of transmission in the way of it can rotate freely.The lasso (outer ring and inner ring) of this pair of bearings Gap with rolling element (spheroid) can be according to input shaft when being transmitted from moment of torsion and the loading direction and size of output shaft input Change, i.e., by the expansion and diminution of the bearing clearance of the opposite side of loading direction lasso is repeated with rolling element Separation and contact, so that the impact sound of rolling element and lasso can be produced, the evil as NVH (noise, vibration and sound vibration roughness) Change reason.

The content of the invention

The present invention in view of above-mentioned problem and complete, its object is to realize one kind can suppress support input shaft with The expansion in the gap between the lasso and rolling element of the bearing of output shaft and improve NVH deterioration structure.

In order to solve above-mentioned problem, reached purpose, the 1st form of the invention is a kind of buncher 1, and it has：It is defeated Enter axle 2, it is inputted driving force from traveling with driving source；Output shaft 3, it is abreast configured with the input shaft 2；Crank connecting link Mechanism 20, it has the swing rod 18 linked with the output shaft 3, by by the driving force input unit 4 of the rotation driving of input shaft 2 ~7 rotary motion is converted to the oscillating motion of the swing rod 18, described when the driving force input unit 4~7 rotation 1 is enclosed Swing rod 18 carries out 1 reciprocal oscillating motion；Single direction rotation prevents mechanism 17, and it will when the swing rod 18 is to be swung aside The swing rod 18 is fixed on the output shaft 3, is intended in the swing rod 18 to making the swing rod 18 during another side oscillation relative to institute Output shaft 3 is stated to dally；And case of transmission 100, it supports the input shaft 2 and described defeated in the way of it can rotate freely Shaft 3, and house the input shaft 2, the output shaft 3, the toggle 20 and single direction rotation prevention machine Structure 17, the case of transmission 100 has side of sidewall portion 101,102, and the side of sidewall portion 101,102 is by means of input shaft bearing 40A, 40B The both ends of the input shaft 2 are supported, and the both ends of the output shaft 3 are supported by means of exporting bearing 50A, 50B, it is described The lasso 40A1 of described input shaft bearing 40A, the 40B of support and described output bearing 50A, 50B on side of sidewall portion 101,102,40B1, Rolling element 40A2 of 50A1,50B1 position relative to described input shaft bearing 40A, 40B and described output bearing 50A, 50B, Center 101A, 102A in 40B2,50A2,50B2 axial direction, to by described input shaft bearing 40A, 40B and the output shaft Hold the shaft end side skew of the nearside of the input shaft 2 that 50A, 50B support respectively and the output shaft 3.

In addition, the 2nd form of the present invention is that on the basis of above-mentioned 1st form, the side of sidewall portion 101,102 has：It is defeated Enter region 101B, 102B, it is located at than sides of the 1st line L1 away from the output shaft 3, and wherein the 1st line L1 passes through described defeated Enter center 101A, 102A in bearing 40A, 40B axial direction, and with acting on the input shaft bearing from the input shaft 2 Loading direction when load F1, F4 on 40A, 40B is maximum is vertical；Output area 101C, 102C, it is located at than the 2nd line L2 Side away from the input shaft 2, the center in axial direction that wherein the 2nd line L2 passes through described output bearing 50A, 50B 101A, 102A, and with being acted on from the output shaft 3 when load F1 ', the F4 ' exported on bearing 50A, 50B is maximum Loading direction is vertical；And intermediate region 101D, 102D, it is clipped between the input area and the output area, described Side of sidewall portion 101,102 is configured to, and prevents mechanism 17 from being when the swing rod 18 is pushed away from the side of input shaft 2 in the single direction rotation In the case of the mechanism for fixing the swing rod 18 during 3 side of output shaft, described input area 101B, 102B and the output area Domain 101C, 102C rigidity are higher than described intermediate region 101D, 102D rigidity, prevent mechanism 17 from being to work as in the single direction rotation In the case of the mechanism for fixing the swing rod 18 when the swing rod 18 is by from the layback of output shaft 3 to 2 side of input shaft, Described input area 101B, 102B and described output area 101C, 102C rigidity are less than described intermediate region 101D, 102D's Rigidity.

According to the present invention, can be achieved a kind of lasso and rolling element that can suppress to support the bearing of input shaft and output shaft it Between gap expansion and improve NVH deterioration structure.

Specifically, according to the 1st form of the present invention, the expansion in the gap of bearing is suppressed by the moment of flexure resulted from shaft end Greatly, and by toppling over for bearing cause the power for suppressing to bend to act on shaft end, thus will not damage axis body durability, can By property and moment of torsion transmission efficiency, NVH can be improved.

In addition, according to the 2nd form of the present invention, the region of the opposite side of the loading direction inputted from input shaft and output shaft Be easy to flexure and to the lasso reacting axial loads of bearing, therefore, it is possible to help to suppress the gap between rolling element and lasso The effect of expansion, can be achieved NVH improvement.

Description according to a preferred embodiment of the present invention, present invention others feature and advantage are for art technology It will be apparent from for personnel.In the description, refer to the attached drawing shows the example of the present invention.However, such Example is not intended to exhaustive various embodiments of the present invention, therefore, should refer to claims following the description to determine The scope of the present invention.

Brief description of the drawings

Fig. 1 is the sectional view of the structure for the buncher for representing present embodiment.

Fig. 2 is the figure from the offset governor motion, connecting rod and swing rod of end on observation Fig. 1 buncher.

Fig. 3 A-3D are the figures of the change of offset that are brought of offset governor motion for the buncher for representing Fig. 1.

Fig. 4 A-4C are change and the pendulum of swing rod for representing the offset that the offset governor motion of present embodiment is brought The figure of the relation of the swing angle scope of dynamic motion.

Fig. 5 be the buncher for illustrating present embodiment input shaft and output shaft bearing support structure figure.

Fig. 6 A-6C are to represent that the power when toggle of present embodiment carries out moment of torsion transmission by pushing mode is closed The figure of system.

Fig. 7 A-7C are to represent that the power when toggle of present embodiment carries out moment of torsion transmission by drawing mode is closed The figure of system.

Fig. 8 A-8B are the outside drawings of the side of sidewall portion of the case of transmission shown in Fig. 5.

Fig. 9 be the side of sidewall portion for the case of transmission for illustrating present embodiment to the expansion inhibitory action in the gap of bearing and To input shaft and the figure of the flexure inhibitory action of output shaft.

Label declaration

1：Buncher, 2：Input shaft, 3：Output shaft, 4：Offset governor motion, 5：Cam disc, 6：Eccentric disc, 6a： Reception hole, 6b：Internal tooth, 7：Pinion shaft, 7a：External tooth, 7b：Pinion bearing, 14：Offset regulation driving source, 14a：Rotation Rotating shaft, 15：Connecting rod, 15a：Big footpath annulus, 15b：Path annulus, 16：The connecting-rod bearing, 17：One-way clutch, 18：Swing rod, 20：Toggle, 40A：1st input shaft bearing, 40B：2nd input shaft bearing, 50A：1st output bearing, 50B：2nd output shaft Hold, 100：Case of transmission, 101：1st side of sidewall portion, 102：2nd side of sidewall portion.

Embodiment

Hereinafter, the embodiment that present invention will be described in detail with reference to the accompanying.In addition, embodiments described below is to be used as this One of the realization rate of invention, the present invention can be applied to carry out to mode is implemented as follows in the range of its purport is not departed from Structure after modification or deformation.In addition, the buncher of the present invention can also be applied to other purposes beyond automobile, this is Self-evident.

The structure ＞ of ＜ bunchers first, referring to Figures 1 and 2, illustrates the knot of the buncher of present embodiment Structure.

The buncher 1 of present embodiment is can to make the gear ratio i (rotations of rotary speed/output shaft of i=input shafts Rotary speed) make the rotary speed of output shaft be the speed changer of " 0 ", i.e. so-called IVT (Infinity for infinitely great (∞) Variable Transmission：Limitless speed variator) one kind.

The buncher 1 of present embodiment has input shaft 2, output shaft 3 and 6 offset governor motions 4.

Input shaft 2, output shaft 3, offset governor motion 4 are contained in the inside of case of transmission 100.Case of transmission 100 have the 1st side of sidewall portion 101 and the 2nd side of sidewall portion 102 of the configured separate in the axial direction of input shaft 2 and output shaft 3.From input When axle 2 is observed, the 1st side of sidewall portion 101 is the upstream side that driving force is inputted from engine, and the 2nd side of sidewall portion 102 is downstream. , whereas if from output shaft 3, then the 1st side of sidewall portion 101 is and the 2nd side wall by from the downstream of engine output driving power Portion 102 is upstream side.

The one end of the upstream side of input shaft 2 is supported in via the 1st input shaft bearing 40A in the way of it can rotate freely On 1st side of sidewall portion 101, the other end in the downstream of input shaft 2 is via the 2nd input shaft bearing 40B can rotate freely Mode is supported on the 2nd side of sidewall portion 102.Input shaft 2 is made up of hollow part, and it receives from the row such as engine or motor The driving force of driving source is sailed, is driven in rotation centered on center of rotation axis P1.

In addition, the one end in the downstream of output shaft 3 via the 1st output bearing 50A and in the way of it can rotate freely It is supported on the 1st side of sidewall portion 101, the other end of the upstream side of output shaft 3 is via the 2nd output bearing 50B with can be free The mode of rotation is supported on the 2nd side of sidewall portion 102.Output shaft 3 is abreast configured at input shaft 2 in level side with input shaft 2 The position separated upwards, driving force is transmitted via forward-reverse switching mechanism and differential gear etc. to the axletree of automobile.

Offset governor motion 4 is driving force input unit respectively, be arranged to using the center of rotation axis P1 of input shaft 2 as Central rotation, with the cam disc 5 as cam part, the eccentric disc 6 as eccentric part and pinion shaft 7.

Cam disc 5 is disc-shape, to rotate integrally from the center of rotation axis P1 of input shaft 2 bias and with input shaft 2 Mode 21 group be arranged at input shaft 2.Each group cam disc 5 is each set to 60 ° of phase shifting, is configured to by 6 groups Cam disc 5 is in input shaft 2 circumferentially around one week.

Eccentric disc 6 is disc-shape, reception hole 6a is provided with heart P3 eccentric positions therefrom, to clip the reception hole 6a mode, 1 group of cam disc 5 is supported to rotate.

The reception hole 6a of eccentric disc 6 center is formed such that from the center of rotation axis P1 of input shaft 2 to cam disc 5 center P2 (reception hole 6a center) the center P2 apart from Ra and from cam disc 5 is to the center P3 of eccentric disc 6 apart from Rb It is identical.In addition, being formed with internal tooth 6b on the reception hole 6a of eccentric disc 6 inner peripheral surface clamped by 1 group of cam disc 5.

Pinion shaft 7 is concentrically arranged in the hollow bulb of input shaft 2 with input shaft 2, and via pinion bearing 7b The inner peripheral surface of input shaft 2 is supported in the way of it can rotate against.In addition, being provided with external tooth on the outer peripheral face of pinion shaft 7 7a.And then, differential attachment 8 is connected with pinion shaft 7.

Incision hole 2a is formed between 1 group of cam disc 5 on input shaft 2, incision hole 2a is in the bias with cam disc 5 The opposed position in direction connects inner peripheral surface with outer peripheral face, via incision hole 2a, the external tooth 7a and eccentric disc of pinion shaft 7 6 reception hole 6a internal tooth 6b engagements.

Differential attachment 8 is planetary gears, its have central gear 9, with input shaft 2 link the 1st gear ring 10, with it is small The 2nd gear ring 11 that gear shaft 7 links and by ladder little gear 12 by being capable of axle is supported in the way of rotation and revolution planet carrier 13, what the ladder little gear 12 was engaged by the large-diameter portion 12a that is engaged with the gear ring 10 of central gear 9 and the 1st and with the 2nd gear ring 11 Minor diameter part 12b is constituted.In addition, the central gear 9 of differential attachment 8 with by the driving of pinion shaft 7 motor drive mechanism into bias Regulation is measured with the rotary shaft 14a of driving source 14 to be linked.

Moreover, in the rotary speed and the rotary speed identical feelings of input shaft 2 that make the offset regulation driving source 14 Under condition, central gear 9 is rotated with the 1st gear ring 10 with identical speed, as central gear 9, the 1st gear ring 10, the 2nd gear ring 11 and row The lock-out state that this 4 key elements of carrier 13 can not be rotated against, with the 2nd gear ring 11 link pinion shaft 7 with input The same speed of axle 2 rotates.

In addition, make offset regulation driving source 14 rotary speed it is slower than the rotary speed of input shaft 2 in the case of, If setting the rotating speed of central gear 9 as gear ratio that Ns, the 1st gear ring 10 rotating speed are NR1, the gear ring 10 of central gear 9 and the 1st (number of teeth of the number of teeth/central gear 9 of the 1st gear ring 10) is j, then the rotating speed of planet carrier 13 is (jNR1+Ns)/(j+1).This Outside, if setting gear ratio ((number of teeth of the number of teeth/central gear 9 of the 2nd gear ring 11) × (rank of the gear ring 11 of central gear 9 and the 2nd The large-diameter portion 12a of the terraced little gear 12 number of teeth/minor diameter part 12b number of teeth)) be k, then the rotating speed of the 2nd gear ring 11 is { j (k+1) NR1+(k-j)Ns}/{k(j+1)}。

Therefore, make the rotary speed of offset regulation driving source 14 slower than the rotary speed of input shaft 2 and be fixed with In the case of the rotary speed of the input shaft 2 of cam disc 5 and the rotary speed identical of pinion shaft 7, eccentric disc 6 and cam disc 5 Rotate integrally.On the other hand, in the case where the rotary speed of input shaft 2 and the rotary speed of pinion shaft 7 have differences, partially Cartridge 6 is rotated centered on the center P2 of cam disc 5 in the periphery of cam disc 5.

As shown in Fig. 2 eccentric disc 6 is relative to cam disc 5, with from P1 to P2 apart from Ra with from P2 to P3 apart from Rb phases Same mode is eccentric.Therefore, it is possible to make the center P3 of eccentric disc 6 positioned at the center of rotation axis P1 identical lines with input shaft 2 On, it is " 0 " to make the distance between the center of rotation axis P1 of input shaft 2 and the center P3 of eccentric disc 6, i.e. offset R1.

Connecting rod 15 is supported by the way of it can rotate on the outer edge of eccentric disc 6.Connecting rod 15 has an end The big footpath annulus 15a in big footpath, has the path annulus 15b of path in another end.The big footpath annulus 15a of connecting rod 15 The outer edge of eccentric disc 6 is supported in via the connecting-rod bearing 16.

On output shaft 3, the one-way clutch 17 of mechanism is prevented to be linked with swing rod 18 via as single direction rotation.It is unidirectional from Swing rod 18 is fixed on output by clutch 17 in the case where being intended to rotate to side centered on the center of rotation axis P4 of output shaft 3 Axle 3, makes swing rod 18 be dallied relative to output shaft 3 in the case where being intended to rotate to opposite side.

Provided with end 18a is swung on swing rod 18, it is provided with swinging on the 18a of end so that path ring-type axially can be being clamped A pair of tab 18b that portion 15b mode is formed.The internal diameter pair with path annulus 15b is provided through on a pair of tab 18b The through hole 18c answered.Connecting pin 19 is inserted in through hole 18c and path annulus 15b, so that connecting rod 15 be connected with swing rod 18 Knot gets up.In addition, being provided with annulus 18d on swing rod 18.

Then, reference picture 2~Fig. 4 A-4C illustrate the song of the buncher of present embodiment to ＜ toggles ＞ Handle linkage.

As shown in Fig. 2 in the buncher 1 of present embodiment, offset governor motion 4, connecting rod 15 and swing rod 18 Constitute toggle 20 (four section linkages).

By toggle 20, by the rotary motion of input shaft 2 be converted to swing rod 18 with the rotation of output shaft 3 Oscillating motion centered on heart axis P4.The buncher 1 of present embodiment is as shown in figure 1, with total 6 crank connecting links Mechanism 20.

In toggle 20, in the offset R1 not in the case of " 0 " of offset governor motion 4, if made Input shaft 2 and pinion shaft 7 are rotated with identical speed, then each connecting rod 15 staggers 60 degree of phase respectively, and input shaft 2 with Alternately repeat to be pushed to the side of output shaft 3 between output shaft 3 or be pulled to the side of input shaft 2, swing swing rod 18.

Moreover, one-way clutch 17 is provided between swing rod 18 and output shaft 3, therefore in the case where pushing swing rod 18, Swing rod 18 is fixed and transmitted to output shaft 3 by the moment of torsion of the oscillating motion generation of swing rod 18 so that output shaft 3 rotates, and is leading In the case of drawing swing rod 18, swing rod 18 dallies without being transmitted to output shaft 3 by the moment of torsion of the oscillating motion generation of swing rod 18.6 Individual offset governor motion 4 be stagger respectively 60 degree phase and configure, therefore output shaft 3 is by 6 offset governor motions 4 Rotation driving in order.

In addition, in the buncher 1 of present embodiment, as shown in figs. 3 a-3d, offset governor motion can be passed through 4 regulation offset R1.

Fig. 3 A represent to make the state that offset R1 is " maximum ", and pinion shaft 7 and eccentric disc 6 are to cause the rotation of input shaft 2 Turn the central axis P1 and center P2 of the cam disc 5 and center P3 of eccentric disc 6 modes being arranged on straight line to be positioned.This When gear ratio i for minimum.Fig. 3 B represent to make offset R1 for less than Fig. 3 A " in " state, Fig. 3 C represent to make offset R1 For the state of " small " that is further less than Fig. 3 B.On gear ratio i, represent in figure 3b gear ratio i more than Fig. 3 A " in " State, in fig. 3 c represent more than Fig. 3 B gear ratio i " big " state.Fig. 3 D represent the shape for making offset R1 be " 0 " State, the center of rotation axis P1 of input shaft 2 is positioned with one heart with the center P3 of eccentric disc 6.Gear ratio i now is infinity (∞)。

Fig. 4 A-4C represent change and the swing rod 18 for the offset R1 that the offset governor motion 4 of present embodiment is brought Oscillating motion swing angle scope relation.

Fig. 4 A represent during " maximum " that offset R1 is Fig. 3 A the swing rod 18 of (when gear ratio i is minimum) relative to offset The hunting range θ 2 of the rotary motion (anglec of rotation θ 1) of governor motion 4, Fig. 4 B represent offset R1 for Fig. 3 B " in " when (become Speed than i for it is middle when) hunting range θ 2 of the swing rod 18 relative to the rotary motion (anglec of rotation θ 1) of offset governor motion 4, The swing rod 18 of when big (gear ratio i for) is relative to offset governor motion 4 when Fig. 4 C represent " small " that offset R1 is Fig. 3 C The hunting range θ 2 of rotary motion (anglec of rotation θ 1).Here, from the center of rotation axis P4 of output shaft 3 to connecting rod 15 with swinging End 18a point of contact, the length R2 that the distance for the center P5 for arriving connecting pin 19 is swing rod 18.

It can be seen from Fig. 4 A-4C, as offset R1 diminishes, the swing angle range Theta 2 of swing rod 18 also diminishes, in bias In the case that amount R1 is changed into " 0 ", swing rod 18 is no longer swung.

Then, reference picture 5 to Fig. 9 illustrates the defeated of present embodiment to the bearing support structure ＞ of ＜ input shafts and output shaft Enter the bearing support structure of axle 2 and output shaft 3.

In the present embodiment, as shown in figure 5, making the 1st side of sidewall portion 101 of case of transmission 100 support the 1st input shaft bearing Center in 40A lasso (outer ring) 40A1 rolling element 40A2 of the position relative to the 1st input shaft bearing 40A axial direction 101A is offset to the shaft end side of the one end of input shaft 2.Similarly, the 2nd side of sidewall portion 102 of case of transmission 100 is made to support the 2nd In in input shaft bearing 40B lasso (outer ring) 40B1 rolling element 40B2 of the position relative to the 2nd input shaft bearing 40B axial direction Heart position 102A is offset to the shaft end side of the other end of input shaft 2.

In addition, making the 1st side of sidewall portion 101 of case of transmission 100 support the 1st lasso 50A1 for exporting bearing 50A position The center 101A in axial direction relative to the 1st output bearing 50A rolling element 50A2 is to the shaft end of the one end of output shaft 3 Side is offset.Similarly, the 2nd side of sidewall portion 102 of case of transmission 100 is made to support the 2nd lasso 50B1 for exporting bearing 50B position Axle from the center 102A in axial direction relative to the 2nd output bearing 50B rolling element 50B2 to the other end of output shaft 3 Side is offset.

That is, the 1st side of sidewall portion 101 and the input shaft 2 and the supporting construction of the bearing of output shaft 3 on the 2nd side of sidewall portion 102 are pass The symmetrical relation in center in axial direction.

Here, on present embodiment to input shaft bearing and output bearing gap expansion inhibitory action and to input The flexure inhibitory action of axle and output shaft, using one end of the input shaft 2 as the structural element in the Z of region in Fig. 6 A and Fig. 7 A Portion, the 1st side of sidewall portion 101 and the 1st input shaft bearing 40A are illustrated as one.

Fig. 6 A-6C are shown when single direction rotation prevents mechanism 17 to push swing rod 18 to output shaft 3 side from the side of input shaft 2 The pushing mode of fixed swing rod 18 carries out power relation during moment of torsion transmission.

In the case where carrying out moment of torsion transmission by pushing mode, as shown in Figure 6B, the 1st input is input to from input shaft 2 Bearing 40A load F1 position occurs with the position for the load F1 reaction force F2 applied from the 1st side of sidewall portion 101 Offset and produce moment M 1.Moreover, as shown in Figure 6 C, the moment M 1 can produce the 1st input shaft bearing 40A lasso (outer ring) 40A1 Life is toppled over, so that the direction of from lasso (outer ring) 40A1 raceway to contact rolling element 40A2 are shifted, therefore when moment of torsion is transmitted, can Between between the lasso 40A1 and rolling element 40A2 of the opposite direction (lower section in figure) for suppressing load F1 on the 1st input shaft bearing 40A The expansion of gap.Even if in addition, the 1st input shaft bearing 40A lasso (outer ring) 40A1 is generated and toppled over, because radial load is in effect It is top dog in the load on rolling element 40A2, therefore rolling element 40A2 distributed load has almost no change, and can recognize For influence will not be brought on the bearing performance (durability and wear resistance) of script.

And then, when moment of torsion is transmitted, from the reaction force of the lateral side of input shaft 2 input of output shaft 3 and in input shaft 2 The moment M 1 that both ends are produced is acted on input shaft 2 in the way of producing the flexure B1 shown in Fig. 6 A, but passes through the 1st input Bearing 40A lasso (outer ring) 40A1's topples over, and is changed for load F1 reaction force F3 loading direction, to suppress Flexure B1 mode acts on moment M 1 in the reverse direction, therefore can suppress the expansion of the flexure of axis body, will not damage input shaft 2 Durability, reliability and moment of torsion transmission efficiency, NVH can be improved.

Fig. 7 A-7C are shown when single direction rotation prevents mechanism 17 that swing rod 18 is pulled into the side of input shaft 2 from the side of output shaft 3 When fix the power relation when drawing mode of swing rod 18 carries out moment of torsion transmission.

Based on same principle, in the case where carrying out moment of torsion transmission by pulling mode, as shown in Figure 7 B, from input shaft 2 reaction forces applied to the 1st input shaft bearing 40A load F4 inputted position and for load F4 from the 1st side of sidewall portion 101 F5 position shifts and produces moment M 2.Moreover, as seen in figure 7 c, the moment M 2 makes the 1st input shaft bearing 40A lasso (outer ring) 40A1, which is produced, to be toppled over, so that the direction of from lasso (outer ring) 40A1 raceway to contact rolling element 40A2 are shifted, therefore When moment of torsion is transmitted, the lasso 40A1 and rolling element of the opposite direction (top in figure) of load F4 on the 1st input shaft bearing 40A can be suppressed The expansion in the gap between 40A2.

And then, when moment of torsion is transmitted from the reaction force of the lateral side of input shaft 2 input of output shaft 3 and in input shaft 2 The moment M 2 that both ends are produced is acted on input shaft 2 in the way of producing the flexure B2 shown in Fig. 7 A, but passes through the 1st input Bearing 40A lasso (outer ring) 40A1's topples over, and is changed for load F4 reaction force F6 loading direction, to suppress Flexure B2 mode acts on moment M 2 in the reverse direction, therefore can suppress the expansion of the flexure of axis body, will not damage input shaft 2 Durability, reliability and moment of torsion transmission efficiency, NVH can be improved.

In addition, the expansion inhibitory action in above-mentioned gap similarly acts on the 2nd defeated of the other end of axle support input shaft 2 On 1st and the 2nd output bearing 50A, the 50B at the both ends for entering bearing 40B and axle support output shaft 3.In addition, input shaft 2 Flexure inhibitory action on one end is relatively symmetric relation with the flexure inhibitory action on the other end and produces and cooperate with work With.And then, for being input to the 1st and the 2nd output bearing 50A, 50B load F1 ', F4 ' from output shaft 3, based on same Principle, also in the way of suppressing the expansion in gap to the 1st and the 2nd output bearing 50A, 50B and suppress the flexure of output shaft 3 Play a role.

In the present embodiment, also directed to the rigidity of the 1st side of sidewall portion 101 and the 2nd side of sidewall portion 102, according to from the He of input shaft 2 Output shaft 3 receive load F1 and F4 direction and strong and weak rank is set, so as to improve NVH improvement.

As shown in figures 8 a-8b, the 1st side of sidewall portion 101 and the 2nd side of sidewall portion 102 are divided into region below：Input area 101B, 102B, its than line L1 in the outer part, the center in axial direction that wherein line L1 passes through the 1st and the 2nd input shaft bearing 40A, 40B Position 101A, 102A, and loading direction during with being input to the load F1 of input shaft bearing 40A, 40B from input shaft 2 for maximum is vertical Directly；Output area 101C, 102C, its than line L2 in the outer part, wherein line L2 passes through the 1st and the 2nd output bearing 50A, 50B axle Upward center 101A, 102A, and when exporting bearing 50A, 50B load F1 ' with being input to from output shaft 3 for maximum Loading direction is vertical；And intermediate region 101D, 102D, it is clipped in input area 101B, 102B and output area 101C, 102C Between, in this case, strong and weak rank is set for rigidity according to each region as follows.

I.e., as shown in Figure 8 A, mechanism 17 is prevented to push swing rod 18 to output shaft 3 from the side of input shaft 2 to work as in single direction rotation In the case that the pushing mode of fixation swing rod 18 carries out moment of torsion transmission during side, make input area 101B, 102B and output area 101C, 102C rigidity are higher than intermediate region 101D, 102D rigidity.

On the other hand, as shown in Figure 8 B, single direction rotation prevent mechanism 17 with when by swing rod 18 from the layback of output shaft 3 to defeated In the case that the drawing mode of fixation swing rod 18 carries out moment of torsion transmission when entering 2 side of axle, make input area 101B, 102B and output area Domain 101C, 102C rigidity are less than intermediate region 101D, 102D rigidity.

By being constructed as described above, so that positioned at the side wall in the reverse direction from input shaft 2 and the loading direction of the input of output shaft 3 The rigidity in the region in portion dies down, therefore the lasso (outer ring or inner ring) in the region of the opposite side of loading direction is easy to follow load side Shifted to the toppling over for lasso of side, i.e., in Fig. 6 A-6C example, as shown in figure 9, on the 1st side of sidewall portion 101 with load F1 Side in opposite direction region 101D be easy to flexure, and be easy on the lasso 40A1 of region 101D sides produce axially carry Lotus, therefore contribute to the expansion inhibitory action in gap, NVH improvement can be realized.In addition, the expansion inhibitory action in above-mentioned gap Similarly act on the other end of input shaft 2 and the both ends of output shaft 3.

In addition, according to from the direction and size of input shaft 2 and the load of the input of output shaft 3, by the side wall of case of transmission The rigidity in portion is adjusted to optimum, so as to be constituted case of transmission with the weight of required bottom line, therefore can either be real Existing lightweight, again can efficiency improve NVH well.

As described above, according to present embodiment, a kind of bearing that can suppress to support input shaft 2 and output shaft 3 can be achieved Lasso and rolling element between gap expansion and improve NVH deterioration structure.

The present invention is not limited to above-described embodiment, can within the spirit and scope of the present invention make a variety of changes and repair Change.Therefore, in order that public awareness the scope of the present invention, herein proposes claims below.

Claims

1. a kind of buncher (1), it has：

Input shaft (2), it is inputted driving force from traveling with driving source；

Output shaft (3), it is abreast configured with the input shaft (2)；

Toggle (20), it has the swing rod (18) linked with the output shaft (3), will revolved by the input shaft (2) The rotary motion for turning the driving force input unit (4~7) of driving is converted to the oscillating motion of the swing rod (18), when the driving force When input unit (4~7) rotation 1 is enclosed, the swing rod (18) carries out 1 reciprocal oscillating motion；

Single direction rotation prevents mechanism (17), and the swing rod (18) is fixed on institute by it when the swing rod (18) is to be swung aside Output shaft (3) is stated, is intended in the swing rod (18) to making the swing rod (18) empty relative to the output shaft (3) during another side oscillation Turn；And

Case of transmission (100), it supports the input shaft (2) and the output shaft (3) in the way of it can rotate freely, and And house the input shaft (2), the output shaft (3), the toggle (20) and single direction rotation prevention mechanism (17),

The buncher (1) is characterised by,

The case of transmission (100) has side of sidewall portion (101,102), and the side of sidewall portion (101,102) is by means of input shaft bearing (40A, 40B) supports the both ends of the input shaft (2), and supports the output shaft by means of exporting bearing (50A, 50B) (3) both ends,

The support input shaft bearing (40A, 40B) on the side of sidewall portion (101,102) and the output bearing (50A, 50B) The position of lasso (40A1,40B1,50A1,50B1) relative to the input shaft bearing (40A, 40B) and it is described output bearing (50A, Center (101A, 102A) in the axial direction of rolling element (40A2,40B2,50A2,50B2) 50B), to by the input shaft Hold the near of (40A, 40B) and output bearing (the 50A, 50B) input shaft (2) that supports respectively and the output shaft (3) The shaft end side skew of side,

The side of sidewall portion (101,102) has：

Input area (101B, 102B), it is located at the side away from the output shaft (3), wherein the 1st line than the 1st line (L1) (L1) by the center (101A, 102A) in the input shaft bearing (40A, 40B) axial direction, and with from the input shaft (2) loading direction when load (F1, F4) acted in the input shaft bearing (40A, 40B) is maximum is vertical；

Output area (101C, 102C), it is located at the side away from the input shaft (2), wherein the 2nd line than the 2nd line (L2) (L2) by the center (101A, 102A) in the axial direction of the output bearing (50A, 50B), and with from the output shaft (3) loading direction when load (F1 ', F4 ') acted on the output bearing (50A, 50B) is maximum is vertical；And

Intermediate region (101D, 102D), it is clipped between the input area and the output area,

The side of sidewall portion (101,102) is configured to,

Mechanism (17) is prevented to be when the swing rod (18) is pushed to output shaft from the input shaft (2) side in the single direction rotation (3) in the case of the mechanism for fixing the swing rod (18) during side, the input area (101B, 102B) and the output area The rigidity of (101C, 102C) is higher than the rigidity of the intermediate region (101D, 102D),

Mechanism (17) is prevented to be when the swing rod (18) is by from the output shaft (3) layback to the input in the single direction rotation In the case of the mechanism for fixing the swing rod (18) during axle (2) side, the input area (101B, 102B) and the output area The rigidity in domain (101C, 102C) is less than the rigidity of the intermediate region (101D, 102D).