CN103029561A - Vehicle drive unit - Google Patents
Vehicle drive unit Download PDFInfo
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- CN103029561A CN103029561A CN201210288608XA CN201210288608A CN103029561A CN 103029561 A CN103029561 A CN 103029561A CN 201210288608X A CN201210288608X A CN 201210288608XA CN 201210288608 A CN201210288608 A CN 201210288608A CN 103029561 A CN103029561 A CN 103029561A
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Abstract
The invention provides a vehicle drive unit which absorbs the wheel displacement caused by wearing of wheel hub bearing instead of transferring the displacement to a motor drive unit. Rotation of a motor is transmitted to the wheel hub (wheel) via an output shaft. The motor drive unit is formed by supporting both ends of the output shaft on a unit case through bearings, so that the protruding end of the output shaft is in rigid combination with the wheel hub. The motor drive unit is installed on a wheel support portion by extending axially outwards from the central portion of the internal end of the unit case to an elastic circular ring at the internal end opening portion of the wheel support portion. When the wheel hub (wheel) is displaced due to shaking of the wheel hub bearings, the linked elastic circular ring elastically deforms through the motor drive unit (output shaft and the unit case) Therefore, the displacement of the wheel hub (wheel) may not be transmitted to the internal of the motor drive unit, thereby preventing interference of rotor and stator of the motor.
Description
Technical field
The present invention relates to the improvement motion for the wheel driver of the electronlmobil that can travel by each wheel driving motor.
Background technology
As this wheel driver, the present known device that has patent documentation 1 for example to put down in writing.
This wheel driver has by electrical motor and obtains the electric motor drive unit that the output shaft from the rotation of this electrical motor consists of, make output shaft and the wheel of this electric motor drive unit drive combination, drive each wheel by each electric motor drive unit, make electric automobile during traveling.
But, in above-mentioned wheel driver, owing to the hub bearing that rotates supporting wheel freely rock and dimension limit makes wobbling of wheels or when moving to axis direction, need to absorb with what position the displacement of these wheels.
In patent documentation 1 in the representational existing wheel driver, between the motor reel of electric motor drive unit and output shaft, insert the absorption driving combining mechanism of displacement of the displacement that can absorb above-mentioned wheel, in electric motor drive unit, will drive combination between motor reel and the output shaft via the absorption driving combining mechanism of this displacement.
The absorption driving combining mechanism of this displacement can absorb because of the rocking and the displacement of the wheel that dimension limit causes of hub bearing, can avoid making transmission system be subject to the impact of " tilting (こ じ り) " etc. owing to the displacement of wheel.
Patent documentation 1:(Japan) JP 2009-190440 communique
But, in the existing wheel driver of the representative that patent documentation 1 is put down in writing, be provided with the absorption driving combining mechanism of displacement owing between motor reel and output shaft, being situated between, therefore, between motor reel and output shaft crossed-axes angle occurs when the absorption driving combining mechanism of displacement absorbs the displacement of above-mentioned wheel, the displacement of above-mentioned wheel involves in the electric motor drive unit unavoidably.
When the displacement of above-mentioned wheel arrives electric motor drive unit and between motor reel and output shaft crossed-axes angle occurs, not only produce the rotor of electrical motor and the phenomenon that stator is interfered, the engagement that produces gear as the gear cluster of electric motor drive system is bad, cause shake aspect and durability aspect of sound unfavorable, and produce the phenomenon that makes wheel decelerates.
In addition, the absorption driving combining mechanism of above-mentioned displacement is arranged in the motor reel of electric motor drive unit and the axis direction position between output shaft and series connection to be arranged, therefore, the absorption driving combining mechanism of displacement also easily maximizes at axis direction, and electric motor drive unit and then wheel driver are created in axis direction length and become large and so on problem and weight and become heavy problem.
In addition, the absorption driving combining mechanism of displacement is positioned at the axis direction position that approaches with hub bearing, in order to absorb rocking and the swing displacement of the wheel that dimension limit causes by hub bearing, the absorption driving combining mechanism of displacement needs large swing displacement to absorb the angle, has also produced to avoid becoming problem large-scale and that change is heavy.
In addition, owing to the absorption driving combining mechanism of displacement is inserted in the electric motor drive system of electric motor drive unit, therefore, the torsional rigid that also produces electric motor drive system reduces, the responsibility of moment of torsion control worsens, the torsion oscillations eigen value of electric motor drive system reduces, the problem that the travelling comfort in the low-frequency vibration zone worsens and so on.
Summary of the invention
The purpose of this invention is to provide a kind of wheel driver, wheel because of bearing portion rock and dimension limit is former thereby during displacement, if the mode with the whole interlock of electric motor drive unit is carried out floating support to this displacement, then can absorb this displacement by this floating support section, from preventing that this displacement is delivered to the viewpoint consideration of the inside transmission system of electric motor drive unit, this idea is specialized can not produce above-mentioned problems.
For realizing this purpose, wheel driver of the present invention has following formation.At first, the wheel driver that becomes prerequisite of the present invention is described, it has: electric motor drive unit, and it is built in electrical motor in the Cell, and makes the output shaft that obtains from the rotation of this electrical motor outstanding from described Cell; The wheel support parts, its supporting wheel makes this rotation of wheel freely, drives described wheel by outstanding the bringing in from the outstanding output shaft of described Cell.
Described wheel driver of the present invention is characterized in that it constitutes, and with jag and the described wheel driving combination of described output shaft, but described Cell is installed with respect to described wheel support parts relative displacement ground.
According to wheel driver of the present invention, but the Cell of electric motor drive unit is installed with respect to wheel support parts relative displacement ground, therefore, when wheel produces displacement because of the wearing and tearing of bearing portion and tolerance, electric motor drive unit integral body and this displacement interlock, can absorb this displacement, this displacement can not be delivered to the inside transmission system of the electric motor drive unit that contains electrical motor.
Therefore, even when wheel produces displacement, the phenomenon that the swivel that also can prevent electrical motor and other parts are interfered and the bad phenomenon such as prevent that component parts that the electrical motor rotary drive is is interfered mutually.
In addition, but be used for the Cell of electric motor drive unit with respect to the Cell installation constitution of wheel support parts relative displacement ground installation on himself little basis of axis direction size, may not be with respect to Cell in the axis direction alignment arrangements, also can be disposed at the periphery of Cell, therefore, wheel driver can not become large in axis direction length, or weight can not increase, compare with existing structure, can realize miniaturization and the lightweight of wheel driver.
In addition, according to the present invention, described Cell installation constitution is positioned at the axis direction position away from wheel support section.Therefore, absorption by wheel support section rock and the swing displacement of the Cell installation constitution that the swing displacement of the wheel that dimension limit causes is required to absorb the angle little, this Cell installation constitution is small-sized and light weight enough, also can make wheel driver miniaturization and lightweight in this.
In addition, the transmission system of Cell installation constitution and electric motor drive unit is without any relation, therefore, the problem that the torsional rigid that can not produce electric motor drive system reduces and the responsibility of moment of torsion control worsens and so on, the torsion oscillations eigen value that also can not produce electric motor drive system reduce and in the problem of the travelling comfort ground in low-frequency vibration zone deterioration and so on.
Description of drawings
Fig. 1 is the longitudinal cross-section lateral plan of entity structure of the wheel driver of expression first embodiment of the invention;
Fig. 2 is the longitudinal cross-section lateral plan of the wheel driver summary of presentation graphs 1;
Fig. 3 is for Fig. 1,2 in-wheel motor (in wheel motor) driver element are installed on the front elevation of the Elastic Circular ring body of wheel support parts;
Fig. 4 is the longitudinal cross-section lateral plan of the wheel driver summary of expression second embodiment of the invention;
Fig. 5 is the longitudinal cross-section lateral plan of the wheel driver summary of expression third embodiment of the invention;
Fig. 6 is the front elevation that is installed on the absorption installation constitution of relative displacement of wheel support parts for the in-wheel motor driver element with Fig. 5;
Fig. 7 is the longitudinal cross-section lateral plan of the wheel driver summary of expression fourth embodiment of the invention;
Fig. 8 is the longitudinal cross-section lateral plan of the wheel driver summary of expression fifth embodiment of the invention;
Fig. 9 is the longitudinal cross-section lateral plan of entity structure of the wheel driver of expression sixth embodiment of the invention;
Figure 10 is the longitudinal cross-section lateral plan of the wheel driver summary of presentation graphs 9;
Figure 11 is the longitudinal cross-section lateral plan of the wheel driver summary of expression seventh embodiment of the invention;
Figure 12 is the longitudinal cross-section lateral plan of the wheel driver summary of expression eighth embodiment of the invention;
Figure 13 is the longitudinal cross-section lateral plan of the wheel driver summary of expression ninth embodiment of the invention;
Figure 14 is the longitudinal cross-section lateral plan of the wheel driver summary of expression tenth embodiment of the invention;
Figure 15 is the front elevation that drives the absorption driving combining mechanism of relative displacement of combination for output shaft and wheel hub with the in-wheel motor driver element of Figure 14.
Nomenclature:
1, wheel
2, wheel support parts
3a, 3b, suspension member
4, hub bearing
5, wheel hub
7, wheel bolt
8, wheel nut
11, in-wheel motor driver element (electric motor drive unit)
12, Cell
13, electrical motor
14, output shaft
14a, output shaft jag
21, Elastic Circular ring body (elastic body: the absorption installation constitution of relative displacement)
31, planetary gear type train of reduction gears
32, input shaft
36, sun gear
37, gear ring
38, planet pinion gear
39, planetary gear carrier
41, the absorption installation constitution of relative displacement
42, discoideus installation component
43, shaft-like installation component
44, sleeve-shaped elastomeric material
51, the absorption installation constitution of relative displacement
52, discoideus installation component
53, shaft-like installation component
54, mechanism's joint
57, axial region
58, connecting piece
59, tubular installation component
61, the absorption driving combining mechanism of relative displacement (engagement type coupling mechanism)
62, mechanism's joint
71, the absorption driving combining mechanism of relative displacement (elastic coupling mechanism)
72, elastic circular plate
73, rigid circular plate
81, the absorption driving combining mechanism of relative displacement
82, discoideus drive member
83, discoideus driven member
84, sleeve-shaped elastomeric material
The specific embodiment
Below, explain embodiments of the present invention based on embodiment shown in the drawings.
(formation of the first embodiment)
Fig. 1 is the longitudinal cross-section lateral plan of entity structure of the wheel driver of expression first embodiment of the invention, and Fig. 2 is the longitudinal cross-section lateral plan of its summary of expression.
In these figure, 1 expression wheel, the freely wheel support parts of supporting wheel 1 are rotated in 2 expressions.
By up and down suspension member 3a, 3b and not shown vehicle body link, the draft hitch by containing these suspension member 3a, 3b hangs wheel support parts 2 wheel support parts 2 with respect to the mode that vehicle body can carry out suspension travel with direction up and down with the inner of overall width direction inboard.
Concentric one is provided with brake disc 6 in combination in the outer end of wheel hub 5, is embedded with a plurality of wheel bolts 7 with outer end and the brake disc 6 that connects these wheel hubs 5 in the mode of giving prominence to axis direction.
When wheel 1 is installed with respect to wheel hub 5, the mode that connects wheel bolt 7 with the bolt hole at the wheel disc that passes wheel 1 is close to the side of this wheel disc and brake disc 6, wheel nut 8 and wheel bolt 7 are tightened screwed togather, carry out wheel 1 with respect to the installation of wheel hub 5.
Therefore, wheel 1 is rotatably freely supported on wheel support parts 2 via wheel hub 5 and hub bearing 4.
Periphery at brake disc 6 configures and is provided with brake clamp 9 in the mode of crossing over, and this brake clamp 9 is installed on wheel support parts 2.
In-wheel motor driver element 11 and wheel 1(wheel hub 5) concentric arrangement and being built in the wheel support parts 2.
And in-wheel motor driver element 11 possesses Cell 12, has taken in electrical motor 13 in this Cell 12.
The bearing 15,16 of the axis direction both sides of output shaft 14 by being disposed at rotor 13r is rotatably freely supported on Cell 12.
When in-wheel motor driver element 11 is installed on wheel support parts 2, by from away from wheel hub 5(wheel 1) the inner central part radius vector direction outside of Cell 12 extend until the Elastic Circular ring body 21 of wheel support parts 2 carries out in-wheel motor driver element 11 with respect to the installation of wheel support parts 2.
The circular manufacturing that Elastic Circular ring body 21 is shown in Figure 3 for the elastic plate with metal-made or rubber system etc. forms, perimembranous is equipped with a plurality of through hole 21a within it, is equipped with a plurality of through hole 21b at peripheral part.
This Elastic Circular ring body 21 is installed on perimembranous utilization in it and slotting all bolts 22 of hole 21a the inner central part of Cell 12, the slotting all bolts 23 of hole 21b of its peripheral part utilization is installed on the inner peristome 2b of wheel support parts 2.
Therefore, Elastic Circular ring body 21 can circumferencial direction and the footpath direction with the regulation rigidity with in-wheel motor driver element 11(Cell 12) be fixed with respect to wheel support parts 2.
But, because of hub bearing 4 rock and dimension limit causes wheel 1(wheel hub 5) during with respect to the relative displacement of wheel support parts 2 adippings and axis direction, Elastic Circular ring body 21 produces elastic deformation via in-wheel motor driver element 11 and this direction of tilt displacement and axis direction displacement interlock, thus, can absorb this displacement.
Therefore, Elastic Circular ring body 21 is configured for in-wheel motor driver element 11(Cell 12) but the absorption installation constitution of relative displacement installed with respect to wheel support parts 2 relative displacement ground.
But, as long as the identical function of the absorption installation constitution performance of relative displacement, be not limited to above-mentioned Elastic Circular ring body 21, it also can be the structure of using the pipeline flexible joint type of other pattern such as spring, or used the structure of the fluid coupling type of fluid coupling and gas impact etc., also can be the structure of the gap joint-type of spherical key and spline etc.
(effect of the first embodiment)
When the stator 13s to electrical motor 13 switches on, by the electromagnetic force from these rotor 13r is driven in rotation.
Rotary driving force from electrical motor 13 transmits to wheel hub 5 via output shaft 14, makes wheel 1 and the rotation of output shaft 14 one, thus, can realize travelling of electronlmobil.
(effect of the first embodiment)
Because of the rocking of hub bearing 4, dimension limit and then deflection, wheel hub 5(wheel 1) relatively swings (adipping displacement) with respect to wheel support parts 2, or during to the axis direction displacement, Elastic Circular ring body 21 is via in-wheel motor driver element 11(output shaft 14 and Cell 12) produce elastic deformation with above-mentioned direction of tilt displacement and axis direction displacement interlock, thus, can absorb this displacement.
Therefore, even wheel hub 5(wheel 1) above-mentioned direction of tilt displacement or axis direction displacement, owing to electric motor drive unit 11 integral body produce displacement with this displacement interlock, therefore, this displacement can not be delivered to electrical motor 13 and the electric motor drive system in the in-wheel motor driver element 11 yet.
Therefore, even wheel hub 5(wheel 1) above-mentioned displacement, the unfavorable conditions such as the rotor 13r of electrical motor 13 and stator 13s interference also can not occur.
In addition, but for the Elastic Circular ring body 21 that the Cell 12 of in-wheel motor driver element 11 is installed with respect to wheel support parts 2 relative displacement ground, the axis direction size of himself is little, and may not need as shown like that with respect to Cell 12 in the axis direction alignment arrangements, as long as be disposed at the periphery of Cell 12, therefore, wheel driver can not increase at axis direction, can not increase weight, compare with above-mentioned existing structure, can realize miniaturization and the lightweight of wheel driver.
In addition, according to the present embodiment, but the Cell 12 that is used for making in-wheel motor driver element 11 is positioned at axis direction position away from hub bearing 4 with respect to the Elastic Circular ring body 21 of wheel support parts 2 relative displacement ground installation.Therefore, absorption is rocked and wheel hub 5(wheel 1 that dimension limit causes by hub bearing 4) the swing displacement of the required Elastic Circular ring body 21 of direction of tilt displacement to absorb the angle little, this Elastic Circular ring body 21 can be realized small-sized and light weight, also can make wheel driver miniaturization and lightweight in this point.
In addition, above-mentioned Elastic Circular ring body 21 and the transmission system of in-wheel motor driver element 11 are without any relation, therefore, the torsional rigid that can not produce this transmission system reduces and problem that the responsibility of moment of torsion control worsens and so on, and the torsion oscillations eigen value that can not produce transmission system reduces and problem that travelling comfort in the low-frequency vibration zone worsens.
(formation of the second embodiment)
Fig. 4 represents the wheel driver of second embodiment of the invention, in the figure, is represented and Fig. 12 identical parts by prosign.
In the present embodiment, in-wheel motor driver element 11 is set as and Fig. 1,2 different following formations.
Namely, in Fig. 1,2, the rotation of the electrical motor 13 in the in-wheel motor driver element 11 is directly transmitted to output shaft 14, and still, the in the present embodiment rotation with electrical motor 13 consists of in-wheel motor driver element 11 via planetary gear type train of reduction gears 31 to the mode of output shaft 14 transmission.
Therefore, being coaxial docking with output shaft 14 is provided with input shaft 32, and output shaft 14 is rotatably freely supported on Cell 12 via bearing 33, and input shaft 32 is rotatably freely supported on Cell 12 via bearing 34.And, make the end that is coaxial docking of input shaft 32 and output shaft 14 chimeric each other, clamp bearing 35 at this fitting portion and make input shaft 32 and output shaft 14 for can relatively rotating.
On bearing 34,35, make rotor 13r and input shaft 32 combinations of electrical motor 13, transmit from this electrical motor 13(rotor 13r to output shaft 14) consisted of by sun gear 36, gear ring 37, planet pinion gear 38, planetary gear carrier 39 to the planetary gear type train of reduction gears 31 of the electrical motor rotation of input shaft 32.
Ladder planet pinion gear 38 as 4 one group equally spaced be disposed at input shaft 32 around, planetary gear carrier 39 keeps this uniformly-spaced and planet pinion gear 38 is supported in rotation freely.
This planetary gear carrier 39 arranges integratedly in the inner near the output shaft 14 of input shaft 32, and the outer end 14a of output shaft 14 is outstanding from Cell 12, is combined with wheel hub 5 rigidity.
When the in-wheel motor driver element 11 with above-mentioned formation is installed on wheel support parts 2, identical with the first above-mentioned among Fig. 1,2 embodiment, by from away from wheel hub 5(wheel 1) the inner central part radius vector direction foreign side of Cell 12 extend until the Elastic Circular ring body 21(structure identical with Fig. 3 of the inner peristome 2b of wheel support parts 2), carry out in-wheel motor driver element 11 with respect to the installation of wheel support parts 2.
(effect of the second embodiment)
From electrical motor 13(rotor 13r) sun gear 36 to from the rotary power of input shaft 32 to planetary gear type train of reduction gears 31 transmits.
Thus, sun gear 36 makes 38 rotations of ladder planet pinion gear via large footpath pinion part 38a, but, at this moment fixing gear ring 37 bears antagonistic force and brings into play function, therefore, ladder planet pinion gear 38 is with the interior week rolling of path pinion part 38b along gear ring 37, and the mode that large footpath pinion part 38a rolls along the periphery of sun gear 36 is carried out planet motion.
The planet motion of this ladder planet pinion gear 38 is delivered to output shaft 14 via planetary gear carrier 39, by wheel hub 5(wheel 1) rotary actuation can realize travelling of electronlmobil.
By above-mentioned gearing, train of reduction gears 31 can with from electrical motor 13 to input shaft 32 rotation slow down with the gear ratio that the number of teeth was determined by the number of teeth of sun gear 36 and gear ring 37 and to wheel hub 5(wheel 1) transmit.
(effect of the second embodiment)
Even in the present embodiment, when making wheel hub 5(wheel 1 because of the rocking of hub bearing 4, dimension limit and deflection) relatively swing (adipping displacement) with respect to wheel support parts 2, or during to the axis direction displacement, Elastic Circular ring body 21 is via in-wheel motor driver element 11(output shaft 14 and Cell 12) carry out elastic deformation with above-mentioned direction of tilt displacement and axis direction displacement interlock, thus, can absorb this displacement.
Therefore, even wheel hub 5(wheel 1) above-mentioned direction of tilt displacement or axis direction displacement, owing to electric motor drive unit 11 integral body produce displacement with this displacement interlock, therefore, this displacement can not be delivered to electrical motor 13 and the electric motor drive system (planetary gear type train of reduction gears 31) in the in-wheel motor driver element 11 yet.
Therefore, even wheel hub 5(wheel 1) above-mentioned displacement, the unfavorable conditions such as the rotor 13r of electrical motor 13 and stator 13s interference also can not occur, and, can not produce the bad situation of planetary gear type train of reduction gears 31 engagements.
When 31 engagements of generation planetary gear type train of reduction gears are bad, can produce the generation noise or make driving efficiency reduce, make the unfavorable conditions such as wheel decelerates, still, because it is bad that the engagement of planetary gear type train of reduction gears 31 can not occur, therefore, can avoid reliably these unfavorable conditions.
In addition, be used for realizing that the Elastic Circular ring body 21 of this effect is the little structure of axis direction size, and, can be disposed at the periphery of Cell 12, therefore, wheel driver can not increase at axis direction yet, or weight is increased, can realize its miniaturization and lightweight.
In addition, Elastic Circular ring body 21 is positioned at the axis direction position away from hub bearing 4, therefore, absorption is rocked and wheel hub 5(wheel 1 that dimension limit causes by hub bearing 4) the swing displacement of the required Elastic Circular ring body 21 of direction of tilt displacement to absorb the angle little, this Elastic Circular ring body 21 can be realized small-sized and light weight, also can make wheel driver miniaturization and lightweight in this point.
In addition, the transmission system of Elastic Circular ring body 21 and in-wheel motor driver element 11 is without any relation, the torsional rigid that can not produce this transmission system reduces, and the problem that the responsibility of moment of torsion control worsens and so on, the torsion oscillations eigen value that also can not produce transmission system reduce and problem that travelling comfort in the low-frequency vibration zone worsens and so on.
(formation of the 3rd embodiment)
Fig. 5 represents the wheel driver of third embodiment of the invention, in the figure, is represented and Fig. 1,2 identical parts by prosign.
In the present embodiment, in-wheel motor driver element 11 is set as and Fig. 1,2 identical formations, but, with in-wheel motor driver element 11(Cell 12) when being installed on wheel support parts 2, even the Elastic Circular ring body among Fig. 1,2 21 is identical pipeline flexible joint type, also can use to consist of the different absorption installation constitutions 41 of relative displacement.
The absorption installation constitution 41 of this relative displacement by from the inboard discoideus installation component 42 as shown in Figure 6 that extends of the inner peristome 2b radius vector direction of wheel support parts 2, away from the end face of the Cell 12 of wheel hub 5 with the shaft-like installation component 43 that arranges to the outstanding mode of axis direction, consist of at be situated between the as described later elastomeric material 44 of the sleeve-shaped established of these members 42,43.
As shown in Figure 6, wear a plurality of through hole 42a at the peripheral part of discoideus installation component 42, discoideus installation component 42 is installed on the inner peristome 2b of wheel support parts 2 by being inserted in bolt 45 in these through holes 42a.
A plurality of shaft-like installation components 43 as one group, uniformly-spaced are configured in circumferencial direction at the end face central part away from the Cell 12 of wheel hub 5, to be combined with this end face one of Cell 12 to the outstanding mode of axis direction.
Be provided with the opening 42b of shaft-like installation component 43 trip embeddings at the central part of discoideus installation component 42.And, to sleeve-shaped elastomeric materials 44 such as filled rubbers between the opening 42b of discoideus installation component 42 and the shaft-like installation component 43, make the absorption installation constitution 41 of relative displacement integrated with Cell 12.
In addition, be set with at sleeve-shaped elastomeric material 44 and hold yielding " gooseberry (The ぐ り) 44a " be used to its elasticity modulus is reduced.
(effect of the 3rd embodiment, effect)
Identical from the rotary driving force of electrical motor 13 and Fig. 1, the first embodiment of 2, transmit to wheel hub 5 via output shaft 14, make wheel 1 and the rotation of output shaft 14 one, thus, electronlmobil can travel.
Make wheel hub 5(wheel 1 because of the rocking of hub bearing 4, dimension limit and deflection) relatively swing (adipping displacement) with respect to wheel support parts 2, or during to the axis direction displacement, even sleeve-shaped elastomeric material 44 also carries out the setting of " gooseberry 44a ", via in-wheel motor driver element 11(output shaft 14 and Cell 12) carry out elastic deformation with above-mentioned direction of tilt displacement and axis direction displacement interlock, thus, can absorb this displacement.
Therefore, even in the present embodiment, even wheel hub 5(wheel 1) produce above-mentioned direction of tilt displacement or axis direction displacement, owing to electric motor drive unit 11 integral body produce displacement with this displacement interlock, therefore, this displacement can not be delivered to electrical motor 13 and the electric motor drive system in the in-wheel motor driver element 11 yet.
Therefore, even wheel hub 5(wheel 1) above-mentioned displacement, the unfavorable condition that the rotor 13r of electrical motor 13 and stator 13s interfere etc. also can not occur.
In addition, in the present embodiment, the absorption installation constitution 41 of relative displacement that is used for but the Cell 12 of in-wheel motor driver element 11 is installed with respect to wheel support parts 2 relative displacement ground is as main above-mentioned formation take sleeve-shaped elastomeric material 44, therefore, corresponding with the setting of " gooseberry 44a ", the relative displacement absorption power is excellent, can obtain the more significant above-mentioned effect than the first embodiment.
In addition, in the present embodiment, the absorption installation constitution 41 of relative displacement also is positioned at the axis direction position away from hub bearing 4, therefore, absorption is rocked and wheel hub 5(wheel 1 that dimension limit causes because of hub bearing 4) the swing displacement of the required sleeve-shaped elastomeric material 44 of direction of tilt displacement to absorb the angle little, this sleeve-shaped elastomeric material 44 can be realized small-sized and light weight, can make wheel driver miniaturization and lightweight.
In addition, above-mentioned sleeve-shaped elastomeric material 44 and the transmission system of in-wheel motor driver element 11 are without any relation, therefore, the torsional rigid that can not produce this transmission system reduces and problem that the responsibility of moment of torsion control worsens and so on, the problem that the torsion oscillations eigen value that also can not produce transmission system reduces and the travelling comfort in the low-frequency vibration zone worsens and so on.
(formation of the 4th embodiment)
Fig. 7 represents the wheel driver of fourth embodiment of the invention, represents and Fig. 1,2 identical parts with prosign in the figure.
In the present embodiment, in-wheel motor driver element 11 is set as and Fig. 1,2 identical formation, but, with this in-wheel motor driver element 11(Cell 12) when being installed on wheel support parts 2, the pattern that use and Fig. 1,2 Elastic Circular ring body 21 are different, the absorption installation constitution 51 of relative displacement of the mechanism's joint-type that consists of with Constant Velocity Joint and gear coupling etc.
The absorption installation constitution 51 of this relative displacement by from the inboard discoideus installation component 52 that extends of the inner peristome 2b radius vector direction of wheel support parts 2, away from the end face of the Cell 12 of wheel hub 5 with the shaft-like installation component 53 that arranges to the outstanding mode of axis direction, make these members 52,53 rotation engagings but allow and consist of to mechanism's joints 54 such as the Constant Velocity Joint of the relative displacement of axis direction and swaying direction and gear couplings.
Shaft-like installation component 53 concentric arrangement are installed on the end face of this Cell 12 in the end face away from the Cell 12 of wheel hub 5 by bolt 56.
(effect of the 4th embodiment, effect)
Identical from the rotary driving force of electrical motor 13 and Fig. 1, the first embodiment of 2, transmit to wheel hub 5 via output shaft 14, make wheel 1 and the rotation of output shaft 14 one, thus, electronlmobil can travel.
When making wheel hub 5(wheel 1 because of the rocking of hub bearing 4, dimension limit and deflection) relatively swing (adipping displacement) or during to the axis direction displacement with respect to wheel support parts 2, in-wheel motor driver element 11 allows and above-mentioned direction of tilt displacement and axis direction displacement interlock by mechanism's joint 54, can absorb this displacement in mechanism's joint 54.
Therefore, even in the present embodiment, even wheel hub 5(wheel 1) above-mentioned direction of tilt displacement or axis direction displacement, owing to electric motor drive unit 11 integral body produce displacement with this displacement interlock, therefore, this displacement can not be delivered to electrical motor 13 and the electric motor drive system in the in-wheel motor driver element 11 yet.
Therefore, even wheel hub 5(wheel 1) above-mentioned displacement, the unfavorable conditions such as the rotor 13r of electrical motor 13 and stator 13s interference also can not occur.
In addition, in the present embodiment, be used for but the absorption installation constitution 51 of relative displacement that the Cell 12 of in-wheel motor driver element 11 is installed with respect to wheel support parts 2 relative displacement ground is the above-mentioned formation of mechanism's joint 54 as leading take Constant Velocity Joint and gear coupling etc., therefore, the relative displacement absorption power is excellent, can obtain the more significant above-mentioned effect than the first～the 3rd embodiment.
In addition, even in the present embodiment, the absorption installation constitution 51 of relative displacement also is positioned at the axis direction position away from hub bearing 4, therefore, absorption is rocked and wheel hub 5(wheel 1 that dimension limit causes because of hub bearing 4) the swing displacement of the required mechanism's joint 54 of direction of tilt displacement to absorb the angle little, this mechanism's joint 54 can be realized small-sized and light weight, can make wheel driver miniaturization and lightweight.
(formation of the 5th embodiment)
Fig. 8 represents the wheel driver of fifth embodiment of the invention, in the figure, with prosign represent with Fig. 1,2,7 in identical parts.
In the present embodiment, in-wheel motor driver element 11 is set as and Fig. 1,2,7 identical formation, but, with this in-wheel motor driver element 11(Cell 12) when being installed on wheel support parts 2, identical with Fig. 7, the absorption installation constitution 51 of relative displacement of mechanism's joint-type that use is made of Constant Velocity Joint and gear coupling etc. still, adopts the following formation different from Fig. 7.
That is, in the present embodiment, by the joint 54a of mechanism of two arranged in series, 54b consists of mechanism's joint 54 of the absorption installation constitution 51 of relative displacement.
Therefore, be provided with at the center of discoideus installation component 52 towards shaft-like installation component 53 and concentric outstanding axial region 57.
The two ends covering of end with connecting piece 58 that be coaxial docking of shaft-like installation component 53 and axial region 57.By the relative displacement of the joint 54a of mechanism such as Constant Velocity Joint and gear coupling permission to axis direction and swaying direction, simultaneously, make it the rotation engaging between shaft-like installation component 53 and the connecting piece 58.
In addition, by the relative displacement of the joint 54b of mechanism such as Constant Velocity Joint and gear coupling permission to axis direction and swaying direction, simultaneously, make it the rotation engaging between axial region 57 and the connecting piece 58.
(effect of the 5th embodiment, effect)
The present embodiment is except the joint 54a of mechanism by two arranged in series, 54b consists of outside mechanism's joint 54 of the absorption installation constitution 51 of relative displacement, be identical formation with the 4th embodiment of Fig. 7, therefore, can play effect and the effect identical with the 4th embodiment.
But, because mechanism's joint 54 of the absorption installation constitution 51 of relative displacement is by the joint 54a of mechanism of two arranged in series, 54b consists of, therefore, the absorbed displacement of mechanism's joint 54 is larger than the 4th embodiment of Fig. 7, can obtain effect, the effect of more significant the 4th embodiment.
(formation of the 6th embodiment)
Fig. 9 represents the longitudinal cross-section lateral plan of entity structure of the wheel driver of sixth embodiment of the invention, and Figure 10 is the longitudinal cross-section lateral plan of its summary of expression.In these Fig. 9,10, represent the parts identical with Fig. 1～8 with prosign.
In the present embodiment, in-wheel motor driver element 11 is set as and Fig. 1,2,7,8 identical formation, but, with this in-wheel motor driver element 11(Cell 12) when being installed on the wheel support parts 2, with Fig. 7,8 identical, the absorption installation constitution 51 of relative displacement of mechanism's joint-type that use is made of Constant Velocity Joint and gear coupling etc., but employing and Fig. 7,8 some different formations.
Namely, in the present embodiment, by the tubular installation component 59 that arranges with one heart at the end face away from the Cell 12 of wheel hub 5, at the center of discoideus installation component 52 to be embedded in the outstanding axial region 57 that arranges of mode tubular installation component 59 in, to consist of the absorption installation constitution 51 of relative displacement at mechanism's joint 54 of the Constant Velocity Joint of the fitting portion setting of these tubular installation components 59 and axial region 57 and gear coupling etc.
Like this, even in the present embodiment, the absorption installation constitution 51 of relative displacement also become by mechanism's joint 54 allow in-wheel motor driver element 11(Cells 12) with respect to discoideus installation component 52(wheel support parts 2) to the relative displacement of axis direction and swaying direction, simultaneously, making it revotating card share.
In addition, in the present embodiment, will be from jag 14a and the wheel hub 5(wheel 1 of the outstanding output shaft 14 of Cell 12) driving in conjunction with the time, not the such rigidity combinations of the various embodiments described above, but can make output shaft 14(jag 14a by the absorption driving combining mechanism 61 of relative displacement) and wheel hub 5(wheel 1) under the state of axis direction and swaying direction relative displacement, make it the rotation engaging.
The jag 14a that the absorption driving combining mechanism 61 of the relative displacement of the present embodiment is set as at output shaft 14 and the fitting portion of wheel hub 5 are situated between mechanism's joints 62 such as establishing Constant Velocity Joint and gear coupling and the engagement type coupling mechanism that consists of.
(effect of the 6th embodiment, effect)
From the rotary driving force of electrical motor 13 via the absorption driving combining mechanism of relative displacement 61(mechanism joint 62) be delivered to wheel hub 5 from output shaft 14, make wheel 1 and the rotation of output shaft 14 one, thus, electronlmobil can travel.
When making wheel hub 5(wheel 1 because of the rocking of hub bearing 4, dimension limit and deflection) relatively swing (adipping displacement) or during to the axis direction displacement with respect to wheel support parts 2, the part of these direction of tilt displacements and axis direction displacement is by the absorption driving combining mechanism of relative displacement 61(mechanism joint 62) absorb, and remainder is by the absorption installation constitution 51(of relative displacement mechanism joint 54) absorb via the direction of tilt displacement of in-wheel motor driver element 11 and axis direction displacement.
Therefore, even above-mentioned direction of tilt displacement wheel hub 5(wheel 1), axis direction displacement, because the electric motor drive unit 11 whole displacements with this displacement (displacement suitable with above-mentioned remainder) interlock, this displacement can not be delivered to electrical motor 13 and the electric motor drive system (planetary gear type train of reduction gears 31) in the in-wheel motor driver element 11 yet.
Therefore, even wheel hub 5(wheel 1) above-mentioned displacement, the unfavorable condition that the rotor 13r of electrical motor 13 and stator 13s interfere etc. also can not occur.
And, in the present embodiment, wheel hub 5(wheel 1) above-mentioned direction of tilt displacement and the part in the axis direction displacement are by the absorption driving combining mechanism of relative displacement 61(mechanism joint 62) absorb, remainder is by the absorption installation constitution 51(of relative displacement mechanism joint 54) absorb via the continued moving displacement of electric motor drive unit 11, therefore, the absorption driving combining mechanism of relative displacement 61(mechanism joint 62) displacement uptake and the absorption installation constitution 51(of relative displacement mechanism joint 54) the displacement uptake reduce respectively, as wheel driver integral body its absorbable displacement is increased, for large-scale displacement, can bring into play above-mentioned effect.
In addition, according to identical reason, can make the absorption driving combining mechanism of relative displacement 61(mechanism joint 62) displacement uptake and the absorption installation constitution 51(of relative displacement mechanism joint 54) their burdens separately reduce by half, therefore, their miniaturizations and lightweight be can make, small-sized, the lightweight of wheel driver also are conducive to a great extent.
In addition, there is respectively displacement absorbing mechanism 61,51 in axis direction two ends at in-wheel motor driver element 11, thus, with these displacement absorbing mechanisms 61,51 noise and the vibrations that can interdict reliably from electrical motor 13, can suppress it and transmit to outside of in-wheel motor driver element 11, make the sound countermeasure of shaking also become easy.
In addition, because identical reason, can relax towards the input of the outside of in-wheel motor driver element 11, also become easily for the countermeasure of shock input, also can realize miniaturization and lightweight in this point.
(formation of the 7th embodiment)
Figure 11 represents the wheel driver of seventh embodiment of the invention, in the figure, represents and Fig. 9,10 identical parts with prosign.
In the present embodiment, in-wheel motor driver element 11 is set as and Fig. 9,10 different following formations, in addition is and Fig. 9,10 identical formations.
Aforesaid identical among the in-wheel motor driver element 11 of the present embodiment and Fig. 4, represent the parts identical with Fig. 4 with prosign.
That is, being coaxial docking at output shaft 14 arranges input shaft 32, and output shaft 14 is rotatably freely supported on Cell 12 via bearing 33, and input shaft 32 is rotatably freely supported on Cell 12 via bearing 34.
And, make the end that is coaxial docking of input shaft 32 and output shaft 14 chimeric each other, this fitting portion be situated between establish bearing 35 and make input shaft 32 and output shaft 14 for can relatively rotating.
When the in-wheel motor driver element 11 with above-mentioned formation is installed on wheel support parts 2, identical with Fig. 9,10 aforesaid the 6th embodiment, carry out this installation via the absorption installation constitution 51 of relative displacement.
In addition, at outstanding end 14a and the wheel hub 5(wheel 1 with output shaft 14) drive in conjunction with the time, identical with Fig. 9,10 aforesaid the 6th embodiment, carry out this driving combination via the absorption driving combining mechanism 61 of relative displacement.
(effect of the 7th embodiment, effect)
From electrical motor 13(rotor 13r) to the rotary power of input shaft 32 by planetary gear type train of reduction gears 31 with the backward wheel hub 5(wheel 1 that slows down of the ratio of number of teeth that the number of teeth was determined by the number of teeth of sun gear 36 and gear ring 37) transmit, can make Vehicle Driving Cycle.
In the present embodiment, also identical with the 6th embodiment, when rocking because of hub bearing 4, dimension limit and deflection and make wheel hub 5(wheel 1) relatively swing (adipping displacement) with respect to wheel support parts 2, or during to the axis direction displacement, the part of these direction of tilt displacements and axis direction displacement can be passed through the absorption driving combining mechanism of relative displacement 61(mechanism joint 62) absorb, remainder is by the absorption installation constitution 51(of relative displacement mechanism joint 54) absorb via direction of tilt displacement and the axis direction displacement of in-wheel motor driver element 11.
Therefore, even above-mentioned direction of tilt displacement wheel hub 5(wheel 1), axis direction displacement, because the electric motor drive unit 11 whole displacements with this displacement (displacement suitable with above-mentioned remainder) interlock, this displacement can not be delivered to electrical motor 13 and the electric motor drive system (planetary gear type train of reduction gears 31) in the in-wheel motor driver element 11 yet.
Therefore, even because wheel hub 5(wheel 1) above-mentioned displacement, the unfavorable conditions such as the rotor 13r that electrical motor 13 also can not occur and stator 13s interference, and, planetary gear type reducing gear car group 31 can not produce mesh bad.
When the 31 generation engagements of planetary gear type train of reduction gears are bad, noise can produce occur or driving efficiency is reduced or make the unfavorable condition such as wheel decelerates, but, because it is bad that the engagement of planetary gear type train of reduction gears 31 does not occur, thereby can avoid reliably these unfavorable conditions.
(formation of the 8th embodiment)
Figure 12 represents the wheel driver of eighth embodiment of the invention, represents the parts identical with Figure 10 with prosign in the figure.
In the present embodiment, in-wheel motor driver element 11 is set as the following formation different from Figure 10, in addition is set as the formation identical with Figure 10.
In the present embodiment, in-wheel motor driver element 11 is made as planetary gear type deceleration group 31 be configured to Figure 10 in the rightabout formation of axis direction.Therefore, on Cell 12, support freely input shaft 32 via the freely periphery rotation of the output shaft 14 of supporting of bearing 15,16 rotations.
Be combined the rotor 13r of electrical motor 13 in the end of the input shaft 32 close with wheel hub 5, in the opposition side end of input shaft 32 sun gear 36 be set.At the distance wheel hub 5 axis direction position configuration gear ring 37 more farther than sun gear 36, this this gear ring 37 is fixed in Cell 12.
Support freely one by planetary gear carrier 39 rotations and have the pinion part 38a that meshes respectively with sun gear 36 and gear ring 37, the elementary miniature gears 38 of the ladder of 38b makes this planetary gear carrier 38 and output shaft 14 combinations.
Planetary gear type train of reduction gears 31 by above formation drives in conjunction with 14 of input shaft 32 and output shafts, the in-wheel motor driver element 11 that under will being slowed down by gear cluster 31 from the electrical motor rotation of electrical motor 13, will take out from output shaft 14, utilize the absorption installation constitution 51 of relative displacement of the mechanism joint-type identical with Figure 11 that Cell 12 is installed on wheel support parts 2, in addition, utilize the absorption driving combining mechanism 61 of relative displacement of the mechanism joint-type identical with Figure 11 with jag 14a and the wheel hub 5(wheel 1 of output shaft 14) the driving combination.
(effect of the 8th embodiment, effect)
The wheel driver of the present embodiment is configured to the opposite sense except the axis direction such as above-mentioned planetary gear type train of reduction gears 31, be the formation identical with Figure 10, therefore, can bring into play the function identical with the 7th embodiment shown in Figure 10 and identical effect.
(formation of the 9th embodiment)
Figure 13 is the longitudinal cross-section lateral plan of the wheel driver summary of expression ninth embodiment of the invention.
In the present embodiment, the formation of in-wheel motor driver element 11 and this structure that is installed on wheel support parts 2 is identical with Fig. 2 respectively, but, being used for jag 14a and wheel hub 5(wheel 1 with output shaft 14) and the structure of driving combination is set as the following formation different with Fig. 2.
That is, at jag 14a and the wheel hub 5(wheel 1 with output shaft 14) drive in conjunction with the time, use the absorption driving combining mechanism 71 of the relative displacement that is consisted of by elastic coupling mechanism to carry out this driving combination.
The absorption driving combining mechanism 71 of this relative displacement have the elastic circular plate 72 of being combined with jag 14a concentric arrangement and the one of output shaft 14, with these plectane 72 concentric subtends configurations and with the rigid circular plate 73 of wheel hub 5 combinations, the periphery pawl 73a of rigid circular plate 73 is consisted of as the elastic coupling mechanism with the peripheral part link of elastic circular plate 72.
Elastic circular plate 72 forms discoideus forming with elastic plates such as metal-made or rubber systems, and the jag 14a of its central part and output shaft 14 is linked, and its peripheral part links the periphery pawl 73a that has with the rigid circular plate 73 of wheel hub 5 rotations.
Elastic circular plate 72 has the rigidity of regulation at circumferencial direction and footpath direction, still, has elastic deformation with respect to the external force of axis direction, allows the displacement that causes because of this external force.
(effect of the 9th embodiment, effect)
From electrical motor 13(rotor 13r) to the rotary power of output shaft 14 via the absorption driving combining mechanism of relative displacement 71(elastic circular plate 72 and rigid circular plate 73) to wheel hub 5(wheel 1) transmit, can make Vehicle Driving Cycle.
When making wheel hub 5(wheel 1 because of the rocking of hub bearing 4, dimension limit and deflection) relatively swing (adipping displacement) or during to the axis direction displacement with respect to wheel support parts 2, the elastic deformation of the part of these direction of tilt displacements and axis direction displacement by the absorption driving combining mechanism of relative displacement 71(elastic circular plate 72) absorb, remainder is by the absorption installation constitution of Elastic Circular ring body 21(relative displacement) elastic deformation absorb via direction of tilt displacement and the axis direction displacement of in-wheel motor driver element 11.
Therefore, even above-mentioned direction of tilt displacement wheel hub 5(wheel 1), axis direction displacement, because the electric motor drive unit 11 whole displacements with this displacement (displacement suitable with above-mentioned remainder) interlock, this displacement can not be delivered to electrical motor 13 and electric motor drive system in the in-wheel motor driver element 11 yet.
Therefore, even because wheel hub 5(wheel 1) above-mentioned displacement, the unfavorable conditions such as the rotor 13r of electrical motor 13 and stator 13s interference also can not occur.
(formation of the tenth embodiment)
Figure 14 is the longitudinal cross-section lateral plan of the wheel driver summary of expression tenth embodiment of the invention.
In the present embodiment, the formation of in-wheel motor driver element 11 and this structure that is installed on wheel support parts 2 is set as respectively the formation identical with Fig. 5, but, being used for jag 14a and wheel hub 5(wheel 1 with output shaft 14) and the structure of driving combination is made as the following formation different with Fig. 5.
Namely, at jag 14a and the wheel hub 5(wheel 1 with output shaft 14) drive in conjunction with the time, even the absorption driving combining mechanism 71 of the relative displacement of Figure 13 is the elastic coupling mechanism with pattern, also carry out this driving combination by consisting of the absorption driving combining mechanism 81 of relative displacement different from it.
The discoideus drive member 82 shown in Figure 15 that the absorption driving combining mechanism 81 of this relative displacement is linked by the mode of extending with radius vector direction foreign side from then at the jag 14a of output shaft 14, the identical discoideus driven member 83 that links with wheel hub 5, Jie is located at these members 82 as described later, 83 the elastomeric material 84 of sleeve-shaped consists of.
As shown in figure 15, be equipped with a plurality of opening 82a at the peripheral part of discoideus drive member 82, be equipped with at the peripheral part of discoideus actuator 83 and have the axis direction bar 83a of section that the opening 82a of discoideus drive member 82 is invaded in the gap.
And, between the axis direction bar 83a of section of the opening 82a of discoideus drive member 82 and discoideus actuator 83, be filled with the sleeve-shaped elastomeric materials 84 such as rubber, make absorption driving combining mechanism 81 modularity of relative displacement.
In addition, be set with easily to be out of shape be used to its elasticity modulus is reduced at sleeve-shaped elastomeric material 84 and form " gooseberry 84a ".
(effect of the tenth embodiment, effect)
Rotary driving force from electrical motor 13 transmits to wheel hub 5 via the absorption driving combining mechanism 81 of relative displacement from output shaft 14, makes wheel 1 and the rotation of output shaft 14 one, and thus, electronlmobil can travel.
When rocking because of hub bearing 4, dimension limit and deflection and make wheel hub 5(wheel 1) relatively swing (adipping displacement) with respect to wheel support parts 2, or during to the axis direction displacement, the elastic deformation of the part of these direction of tilt displacements and axis direction displacement by the absorption driving combining mechanism of relative displacement 81(sleeve-shaped elastomeric material 84) absorb, remainder is by the elastic deformation of the absorption installation constitution 41(of relative displacement sleeve-shaped elastomeric material 44) can absorb via direction of tilt displacement and the axis direction displacement of in-wheel motor driver element 11.
Therefore, even above-mentioned direction of tilt displacement wheel hub 5(wheel 1), axis direction displacement, because the electric motor drive unit 11 whole displacements with this displacement (displacement suitable with above-mentioned remainder) interlock, this displacement can not be delivered to electrical motor 13 and electric motor drive system in the in-wheel motor driver element 11 yet.
Therefore, even because wheel hub 5(wheel 1) above-mentioned displacement, the unfavorable conditions such as the rotor 13r of electrical motor 13 and stator 13s interference also can not occur
In addition, in the present embodiment, because the absorption driving combining mechanism 81 of the absorption installation constitution 41 of relative displacement and relative displacement is as main above-mentioned formations take sleeve-shaped elastomeric material 44,84, therefore, combine with the setting of " gooseberry 44a, 84a ", the relative displacement absorption power is excellent, can realize significantly above-mentioned effect.
(other embodiment)
In addition, the absorption driving combining mechanism 61 of relative displacement of the absorption installation constitution 21 of the relative displacement of the first embodiment～the tenth embodiment, the 41,51, the 6th～the tenth embodiment, 81 be combined and be not limited to illustrated example and can be structure arbitrarily are even any combination can both obtain identical effect, effect certainly.
Claims (8)
1. wheel driver has: electric motor drive unit, and it is built in electrical motor in the Cell, and makes the output shaft that obtains from the rotation of this electrical motor outstanding from described Cell; The wheel support parts, its supporting wheel makes this rotation of wheel freely, drives described wheel by outstanding the bringing in from the outstanding output shaft of described Cell, it is characterized in that,
Jag and the described wheel of described output shaft are driven combination, but described Cell is installed with respect to described wheel support parts relative displacement ground.
2. wheel driver as claimed in claim 1 is characterized in that,
But be used for the relative displacement absorption installation constitution of described Cell with respect to the installation of described wheel support parts relative displacement ground, by consisting of to the elastic body that extends between these Cells and wheel support parts.
3. wheel driver as claimed in claim 1 is characterized in that,
But be used for the absorption installation constitution of relative displacement that described Cell is installed with respect to described wheel support parts relative displacement ground, by the installation component that extends from described Cell, consist of from the installation component of described wheel support parts extension and with the elastomeric material of combination between these members.
4. wheel driver as claimed in claim 1 is characterized in that,
But be used for the absorption installation constitution of relative displacement that described Cell is installed with respect to described wheel support member relative displacement ground, by the installation component that extends from described Cell, consist of from the installation component of described wheel support parts extension and with mechanism's joint of combination between these members.
5. such as each described wheel driver in the claim 1～4, it is characterized in that,
But the jag of described output shaft is driven combination with respect to described wheel relative displacement ground.
6. wheel driver as claimed in claim 5 is characterized in that,
Described wheel is rotatably freely supported on described wheel support parts via the wheel hub that rotates with this wheel,
But for the jag with described output shaft with respect to the absorption driving combining mechanism of relative displacement that described wheel relative displacement ground drives combination be, between the jag of described output shaft and the engagement type coupling mechanism between the described wheel hub.
7. wheel driver as claimed in claim 5 is characterized in that,
Described wheel is rotatably freely supported on described wheel support parts via the wheel hub that rotates with this wheel,
But be used for the jag of described output shaft with respect to the absorption driving combining mechanism of relative displacement of described wheel relative displacement ground driving combination be, to the elastic coupling mechanism of extending between the jag of described output shaft and wheel hub.
8. wheel driver as claimed in claim 5 is characterized in that,
Described wheel is rotatably freely supported on described wheel support parts via the wheel hub that rotates with this wheel,
Be used for but the jag of described output shaft is driven with respect to described wheel relative displacement ground the absorption driving combining mechanism of relative displacement of combination, the drive member of being extended by the jag from described output shaft, the driven member that extends from described wheel hub and the elastomeric material of driving combination between these drive member and driven member consisted of.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-212537 | 2011-09-28 | ||
| JP2011212537A JP2013071613A (en) | 2011-09-28 | 2011-09-28 | Wheel driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103029561A true CN103029561A (en) | 2013-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210288608XA Pending CN103029561A (en) | 2011-09-28 | 2012-08-14 | Vehicle drive unit |
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| Country | Link |
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| JP (1) | JP2013071613A (en) |
| CN (1) | CN103029561A (en) |
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| CN105691104A (en) * | 2014-11-28 | 2016-06-22 | 舍弗勒技术有限两合公司 | Hub driving assembly |
| CN109121405A (en) * | 2016-08-24 | 2019-01-01 | 圣彼得堡波利马格尼特有限责任公司 | The Electric Motor Wheel of vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP7199217B2 (en) * | 2018-12-20 | 2023-01-05 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | In-wheel motor unit and elastic coupling |
| JP2020100188A (en) * | 2018-12-20 | 2020-07-02 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | In-wheel motor unit |
| DE102019129985A1 (en) * | 2019-11-07 | 2021-05-12 | Schaeffler Technologies AG & Co. KG | Wheel module with side surface sections and vehicle with the wheel module |
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| JP2013071613A (en) | 2013-04-22 |
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Application publication date: 20130410 |