CN204553706U - A kind of electric motor active stabilizer bar - Google Patents
A kind of electric motor active stabilizer bar Download PDFInfo
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- CN204553706U CN204553706U CN201520194578.5U CN201520194578U CN204553706U CN 204553706 U CN204553706 U CN 204553706U CN 201520194578 U CN201520194578 U CN 201520194578U CN 204553706 U CN204553706 U CN 204553706U
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- crankshaft
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Abstract
The utility model relates to a kind of electric motor active stabilizer bar.Comprise actuator, left rear stabilizer and right rear stabilizer.Described actuator comprises actuating motor and driving mechanism; Described actuating motor provides power for the utility model device; Described driving mechanism is taken turns formed by sun gear, at least two planet wheels, planet carrier, internal gear and at least one fewer differential teeth planetary.One end of described left rear stabilizer is connected to the casing of actuating motor, and the output shaft of described actuating motor is connected to one end of right rear stabilizer by driving mechanism.Compared with existing active stabilizer bar, the advantages such as the utility model motor type active stabilizer bar has compact structure, weight is little, bearing capacity is strong, cost is low, easy for installation.
Description
Technical field
The utility model belongs to vehicle chassis technology field, is specifically related to automotive driving stabilizer bar.
Background technique
During automobile turning, due to the existence of body quality, vehicle body side direction accelerate under can roll, not only easily cause the accidents such as overturning, and reduce riding comfort, automobile handling.For reducing the inclination of automobile when turning, current most of passenger car has all installed passive stabilization bar at vehicle body or bottom of frame, and its two ends are connected with suspension swing arm or shock absorber column, when automobile occurs to roll, the rear stabilizer reversed can apply an anti-moment resulting from sidesway to vehicle body, thus suppresses to roll.
Although passive stabilization bar inhibits inclination to a certain extent, Active and Real-time can not be carried out to anti-moment resulting from sidesway and regulate to make angle of heel be always zero, therefore can not eliminate inclination completely.Active stabilization lever system (active stabilizer bar system, ASBS) can according to signals such as sensor feedback or the side acceleration calculated, angle of heel, steering wheel angle, the speed of a motor vehicle, actuator is regulated to export the twisting square of tossing about of corresponding size, thus active suppression rolls, and makes angle of heel place within the specific limits.At present, external high-end cross-country, SUV, passenger car have had active stabilizer bar systematic difference example.
Active stabilizer bar can be divided into hydraulic drive type and motor-driven two kinds.Hydraulic drive type mainly comprises linear hydraulic cylinder formula, oil hydraulic motor formula, ball screw type, they all adopt hydraulic oil as power source, its system comprises the parts and components such as fuel tank, oil pump, hydrovalve, valve block, valve core position sensor, hydraulic pipe line, huge structure is complicated, weight is large, larger space, very inconvenient is needed during installation, not only be unfavorable for alleviating of car weight, and cost is higher.
Motor-driven active stabilizer bar mainly adopts harmonic speed reducer as speed reducer, but harmonic speed reducer bearing capacity is poor, especially require that motor shaft frequently commutates, changes moment of torsion rapidly during active stabilizer bar work, harmonic speed reducer long-term larger time varying stress under easy damage inactivation, therefore the lower occasion of the transmitting torques such as minority light-duty passenger-car can only be used for, general passenger car, cross-country and SUV are difficult to meet the demands, apply limited.
For overcoming the defect of harmonic speed reducer bearing capacity difference, at present, the domestic scholar of having proposes and adopts worm and gear as the motor-driven active stabilizer bar of speed reducer and adopt 2K-H planetary gear train as the motor-driven active stabilizer bar of speed reducer.Worm and gear fretting wear is large, transmission efficiency is low, frequently commutate at motor, action time, often consume more electric energy, and worm and gear input shaft is vertical with output shaft, when the upper motor type of connection can cause boundary dimension large, makes troubles to entrucking.Though 2K-H planetary gear train can meet velocity ratio, output torque requirement, component is many, complex structure, and during output same torque, weight is often larger, is unfavorable for vehicle body loss of weight, and boundary dimension is also without obviously reducing.
Model utility content
For the defect that existing active stabilizer bar exists, the utility model provides the electric motor active stabilizer bar that a kind of compact structure, weight are little, bearing capacity is strong, cost is low, easy for installation.
A kind of electric motor active stabilizer bar comprises actuator, left rear stabilizer 12 and right rear stabilizer 14, described actuator comprises actuating motor 1 and driving mechanism, one end of described left rear stabilizer 12 is connected to the casing of actuating motor 1, and the output shaft 10 of described driving mechanism is connected to one end of right rear stabilizer 14;
Described driving mechanism is planetary gears, comprises sun gear 3, at least two planet wheels 4, planet carrier 9, internal gear 7, at least one fewer differential teeth planetary wheel and at least two crankshafts 5; Described sun gear 3 is fixed at the end of the output shaft of actuating motor 1, and planet carrier 9 is located on the output shaft of actuating motor 1 by bearing; Described at least one fewer differential teeth planetary wheel is located on the returnning of at least two crankshafts 5 by bearing; The middle part of every root crankshaft is provided with at least one returnning, and both sides are respectively main shaft, and described planet wheel 4 is fixed on the side main shaft of crankshaft 5 respectively, and planet wheel 4 engages with sun gear 3 respectively; The main shaft of crankshaft 5 one end corresponding with planet wheel 4 is located on planet carrier 9 by bearing; The main shaft of crankshaft 5 the other end is connected to output shaft 10 by bearing; Described internal gear 7 is fixedly connected the casing of actuating motor 1, and takes turns with fewer differential teeth planetary and engage.
A kind of driving mechanism for underloading comprises sun gear 3, three planet wheels 4, planet carrier 9, internal gear 7, fewer differential teeth planetary wheel and three crankshafts 5; Each fewer differential teeth planetary wheel is above uniform offers three crank throw holes, and fewer differential teeth planetary wheel is located on the returnning of three crankshafts 5 by bearing; The main shaft of three crankshaft 5 one end is located on planet carrier 9 by bearing, and the main shaft of the other end is connected to output shaft 10 by bearing.
A kind of driving mechanism for heavy duty comprises sun gear 3, three planet wheels 4, planet carrier 9, internal gear 7, two fewer differential teeth planetary wheels, three crankshafts 5 and three coupling shafts 8; Each fewer differential teeth planetary wheel is above uniform offers three crank throw holes and three connecting shaft holes; The middle part of every root crankshaft 5 is provided with two returnnings, and the direction of two returnnings is contrary; A fewer differential teeth planetary wheel is located on the returnning of three crankshaft 5 the same sides by bearing, and another fewer differential teeth planetary wheel is located on the returnning of three crankshaft 5 opposite sides by bearing; Three coupling shafts 8 are through two upper corresponding connecting shaft holes of fewer differential teeth planetary wheel, and one end respectively connected planet carrier 9, and the other end respectively connected output shaft 10.
Returnning on described crankshaft 5 and the throw of eccentric between main shaft are 3 ~ 50mm.
Advantageous Effects of the present utility model embodies in the following areas:
1.the utility model eliminates the hydraulic system of bulky complex, actuator is by an actuating motor and reduction gears mechanism is integrated forms, reduction gears mechanism is again be made up of a differential planet gear reducing gear and a gear with small teeth difference reducing gear coupling integration, by common sparing parts and components, maximum possible decrease number of components, such that compact structure, boundary dimension are little, easy for installation, cost reduces greatly.
2., compared with common 2K-H type planetary gear train, because reduction gears mechanism of the present utility model itself itself has very large velocity ratio, without the need to double reduction, when realizing identical reduction speed ratio, its component is few, compact structure, weight are little;
The velocity ratio being not difficult to calculate reduction gears mechanism is:
As can be seen from the above equation, by designing each gear number of teeth, reduction gears mechanism of the present utility model can have comparatively big retarding ratio.
3. compared with common 2K-H type planetary gear train, because fewer differential teeth planetary wheel is many with gear ring total number of teeth in engagement, bearing capacity is strong, and the radial dimension transmitting identical moment of torsion needs is less, transmission efficiency is higher than turbine and worm decelerator simultaneously, and bearing capacity and life-span are higher than harmonic speed reducer.
4. the utility model compact structure, weight is little, bearing capacity is strong, cost is low, easy for installation.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is the utility model transmission schematic diagram.
Fig. 3 is the actuator configurations schematic diagram with three sun gears, two fewer differential teeth planetary wheels.
Fig. 4 is the A-A sectional view of Fig. 3.
Fig. 5 is the B-B sectional view of Fig. 3.
Fig. 6 is the C-C sectional view of Fig. 3.
Fig. 7 is the crank shaft structure schematic diagram of embodiment 1.
Fig. 8 is the right elevation of Fig. 7.
Fig. 9 is the fewer differential teeth planetary wheel construction schematic diagram of embodiment 1.
Figure 10 is the actuator configurations schematic diagram with two sun gears, a fewer differential teeth planetary wheel.
Figure 11 is the D-D sectional view of Figure 10.
Figure 12 is the E-E sectional view of Figure 10.
Figure 13 is the crank shaft structure schematic diagram of embodiment 2.
Figure 14 is the left view of Figure 13.
Figure 15 is the fewer differential teeth planetary wheel construction schematic diagram of embodiment 2.
Sequence number in upper figure: actuating motor 1, input shaft 2, sun gear 3, planet wheel 4, crankshaft 5, right fewer differential teeth planetary wheel 6, internal gear 7, coupling shaft 8, planet carrier 9, output shaft 10, end cap 11, left rear stabilizer 12, left fewer differential teeth planetary wheel 13, right rear stabilizer 14.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the utility model is further described.
Embodiment 1
See Fig. 1, a kind of electric motor active stabilizer bar comprises actuator, left rear stabilizer 12 and right rear stabilizer 14, and actuator comprises actuating motor 1 and driving mechanism; One end of left rear stabilizer 12 is connected to the casing of actuating motor 1, and the output shaft 10 of driving mechanism is connected to one end of right rear stabilizer 14.
See Figure 10, Figure 11 and Figure 12, driving mechanism comprises sun gear 3, two planet wheels 4, planet carrier 9, internal gear 7, fewer differential teeth planetary wheel 6 and two crankshafts 5.Sun gear 3 is fixedly installed in the end of the output shaft of actuating motor 1, and planet carrier 9 is installed on the output shaft of actuating motor 1 by bearing.See Figure 13 and Figure 14, the middle part of every root crankshaft 5 is provided with a returnning, and both sides are respectively main shaft, and the throw of eccentric between returnning and main shaft is 10mm.Uniformly on each fewer differential teeth planetary wheel 6 offer two crank throw holes, fewer differential teeth planetary wheel 6 is arranged on the returnning of two crankshafts 5 by bearing, the main shaft of two crankshaft 5 one end is installed on planet carrier 9 by bearing, and the main shaft of the other end is connected to one end of output shaft 10 by bearing.
Driving mechanism in the present embodiment is without coupling shaft, and structure is very simply compact, and bearing capacity is higher than common retarder, is applicable to the dilly of low speed, underloading, as small-sized passenger car.
Working principle is described as follows:
Power is passed to sun gear 3 by input shaft 2 by actuating motor 1, and sun gear 3 drives two planet wheels 4 to rotate.Because output shaft 10 is rotate in power transmission process, planet carrier 9 is fixedly connected with output shaft 10 by two crankshafts 5, so two planet wheels 4 are around crankshaft 5 rotation, while revolution under output shaft 10 drives.Because each planet wheel 4 is fixedly connected with by flat key with corresponding crankshaft 5, therefore, drive fewer differential teeth planetary to take turns 6 by crankshaft 5 when two planet wheels 4 rotate to engage with internal gear 7 and revolve round the sun.Again because fewer differential teeth planetary wheel 6 is installed on the returnning on crankshaft 5, so namely output shaft 10 output is the revolution angular velocity that fewer differential teeth planetary takes turns 6.Finally complete power by the transmittance process of actuating motor 1 to output shaft 10.
Because left rear stabilizer 12 passes through spline joint with the casing of actuating motor 1, right rear stabilizer 14 passes through spline joint with output shaft 10, finally produce the contrary moment of torsion in direction at left rear stabilizer 12 respectively with on right rear stabilizer 14, and then produce anti-moment resulting from sidesway, realize the effect suppressing to roll.
Specific works process is divided into two kinds of operating modes:
1) when automobile turning occurs to roll, actuating motor 1 energized action outputting power, the effect that reaching tosses about inclines;
2) during automobile straight-line travelling, because actuating motor 1 is failure to actuate, left rear stabilizer 12 is equivalent to consolidation with right rear stabilizer 14, and now active stabilizer bar role is identical with passive stabilization bar.
Embodiment 2
See Fig. 2 and Fig. 3, driving mechanism comprises sun gear 3, three planet wheels 4, planet carrier 9, internal gear 7, left fewer differential teeth planetary wheel 13, right fewer differential teeth planetary wheel 6, three crankshafts 5 and three coupling shafts 8.See Fig. 4, Fig. 5 and Fig. 6, sun gear 3 is fixedly installed in the end of the output shaft of actuating motor 1, planet carrier 9 is installed on the output shaft of actuating motor 1 by bearing, and three planet wheels 4 are fixedly installed on the side main shaft of crankshaft 5 respectively, and three planet wheels 4 engage with sun gear 3 respectively.See Fig. 7 and Fig. 8, the middle part of every root crankshaft 5 is provided with two returnnings, and the direction of two returnnings is contrary, and both sides are respectively main shaft; Throw of eccentric between returnning and main shaft is 15mm.
Left fewer differential teeth planetary wheel 13 and right fewer differential teeth planetary wheel 6, above uniformly respectively offer three crank throw holes and three connecting shaft holes; Left fewer differential teeth planetary wheel 13 is installed on the returnning on the left of three crankshafts 5 by bearing, and right fewer differential teeth planetary wheel 6 is installed on the returnning on the right side of three crankshafts 5 by bearing; Three coupling shafts 8 are each passed through connecting shaft hole corresponding on left fewer differential teeth planetary wheel 13 and right fewer differential teeth planetary wheel 6, and one end respectively connected planet carrier 9, and the other end respectively connected output shaft 10.
The present embodiment is large because of the moment transmitted, and is applicable to the large vehicle of high speed, heavy duty, as large-scale size passenger/cargo etc.
Working principle is described as follows:
Power is passed to sun gear 3 by input shaft 2 by actuating motor 1, and sun gear 3 drives three planet wheels 4 to rotate.Because output shaft 10 is rotate in power transmission process, planet carrier 9 is fixedly connected with output shaft 10 with three coupling shafts 8 by three crankshafts 5, so three planet wheels 4 are around crankshaft 5 rotation, while revolution under output shaft 10 drives.Because three planet wheels 4 are fixedly connected with by flat key with crankshaft 5, therefore, when three planet wheels 4 rotate by crankshaft 5 drive right fewer differential teeth planetary take turns 6 and left fewer differential teeth planetary wheel 13 to engage with internal gear 7 and revolve round the sun.Be installed on respectively on returnning corresponding on crankshaft 5 because of right fewer differential teeth planetary wheel 6, left fewer differential teeth planetary wheel 13 again, so namely output shaft 10 output is the revolution angular velocity that right fewer differential teeth planetary takes turns 6 and left fewer differential teeth planetary wheel 13.Finally complete power by the transmittance process of actuating motor 1 to output shaft 10.
Because left rear stabilizer 12 passes through spline joint with the casing of actuating motor 1, right rear stabilizer 14 passes through spline joint with output shaft 10, finally produce the contrary moment of torsion in direction at left rear stabilizer 12 respectively with on right rear stabilizer 14, and then produce anti-moment resulting from sidesway, realize the effect suppressing to roll.
Claims (4)
1. an electric motor active stabilizer bar, comprise actuator, left rear stabilizer (12) and right rear stabilizer (14), described actuator comprises actuating motor (1) and driving mechanism, one end of described left rear stabilizer (12) is connected to the casing of actuating motor (1), the output shaft (10) of described driving mechanism is connected to one end of right rear stabilizer (14), it is characterized in that:
Described driving mechanism is planetary gears, comprises sun gear (3), at least two planet wheels (4), planet carrier (9), internal gear (7), at least one fewer differential teeth planetary wheel and at least two crankshafts (5); Described sun gear (3) is fixed at the end of the output shaft of actuating motor (1), and planet carrier (9) is located at by bearing on the output shaft of actuating motor (1); Described at least one fewer differential teeth planetary wheel is located on the returnning of at least two crankshafts (5) by bearing; The middle part of every root crankshaft is provided with at least one returnning, and both sides are respectively main shaft, and described planet wheel (4) is fixed on the side main shaft of crankshaft (5) respectively, and planet wheel (4) engages with sun gear (3) respectively; The main shaft of crankshaft (5) one end corresponding with planet wheel (4) is located on planet carrier (9) by bearing; The main shaft of crankshaft (5) the other end is connected to output shaft (10) by bearing; Described internal gear (7) is fixedly connected the casing of actuating motor (1), and takes turns with fewer differential teeth planetary and engage.
2. a kind of electric motor active stabilizer bar according to claim 1, is characterized in that: described driving mechanism comprises sun gear (3), three planet wheels (4), planet carrier (9), internal gear (7), a fewer differential teeth planetary wheel and three crankshafts (5); Each fewer differential teeth planetary wheel is above uniform offers three crank throw holes, and fewer differential teeth planetary wheel is located on the returnning of three crankshafts (5) by bearing; The main shaft of three crankshaft (5) one end is located on planet carrier (9) by bearing, and the main shaft of the other end is connected to output shaft (10) by bearing.
3. a kind of electric motor active stabilizer bar according to claim 1, is characterized in that: described driving mechanism comprises sun gear (3), three planet wheels (4), planet carrier (9), internal gear (7), two fewer differential teeth planetary wheels, three crankshafts (5) and three coupling shafts (8); Each fewer differential teeth planetary wheel is above uniform offers three crank throw holes and three connecting shaft holes; The middle part of every root crankshaft (5) is provided with two returnnings, and the direction of two returnnings is contrary; A fewer differential teeth planetary wheel is located on the returnning of three crankshaft (5) the same sides by bearing, and another fewer differential teeth planetary wheel is located on the returnning of three crankshaft (5) opposite sides by bearing; Three coupling shafts (8) are through two upper corresponding connecting shaft holes of fewer differential teeth planetary wheel, and one end respectively connected planet carrier (9), and the other end respectively connected output shaft (10).
4. a kind of electric motor active stabilizer bar according to claim 1 or 2 or 3, is characterized in that: the returnning on described crankshaft (5) and the throw of eccentric between main shaft are 3 ~ 50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520194578.5U CN204553706U (en) | 2015-04-02 | 2015-04-02 | A kind of electric motor active stabilizer bar |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520194578.5U CN204553706U (en) | 2015-04-02 | 2015-04-02 | A kind of electric motor active stabilizer bar |
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| CN204553706U true CN204553706U (en) | 2015-08-12 |
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| CN201520194578.5U Expired - Fee Related CN204553706U (en) | 2015-04-02 | 2015-04-02 | A kind of electric motor active stabilizer bar |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776165A (en) * | 2015-04-02 | 2015-07-15 | 合肥工业大学 | Electric motor type active stabilizer bar |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776165A (en) * | 2015-04-02 | 2015-07-15 | 合肥工业大学 | Electric motor type active stabilizer bar |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 |
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| CF01 | Termination of patent right due to non-payment of annual fee |