CN214331453U - Integrated automatic gearbox gear shifting hub driving device - Google Patents
Integrated automatic gearbox gear shifting hub driving device Download PDFInfo
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- CN214331453U CN214331453U CN202120269193.6U CN202120269193U CN214331453U CN 214331453 U CN214331453 U CN 214331453U CN 202120269193 U CN202120269193 U CN 202120269193U CN 214331453 U CN214331453 U CN 214331453U
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Abstract
The utility model provides an integrated form automatic transmission hub drive arrangement that shifts, including the gear shifting motor, few poor planetary gear mechanism of tooth shifts hub mechanism: the gear shifting motor comprises an output shaft; the small tooth difference planetary gear mechanism comprises an inner gear ring fixed on a gearbox shell, a driving shaft meshed with the output shaft and a planetary gear connected with the driving shaft; the hub mechanism of shifting includes the hub gear of shifting and the hub body of shifting, the hub gear of shifting passes through a plurality of mounting screws in one side of the hub of shifting, planetary gear keeps away from shift motor one side and sets up a plurality of round pin axle embedding shift in a plurality of pinholes on the hub gear of shifting. The utility model provides an integrated form automatic transmission hub drive arrangement that shifts realizes the transmission of great velocity ratio through the poor planet reduction gears of few tooth, and the transmission part is few, has saved and has arranged the space, and the hub gear that shifts can external other driven mechanisms that probably need in addition, with other actuating mechanism fast integrated to this driving system in.
Description
Technical Field
The utility model relates to a gearbox technical field that shifts, in particular to integrated form automatic transmission hub drive arrangement that shifts.
Background
The double-Clutch automatic gearbox (DCT) is formed by respectively connecting two clutches and two input shafts which are sleeved together, the power of an engine is respectively transmitted to odd/even gears on the two input shafts, the odd/even gears are controlled by two gear shifting hubs, pre-engagement can be realized, the problems of gear shifting impact and power interruption generated by a manual gearbox (MT) or an electric control mechanical automatic gearbox (AMT) are solved, the gear shifting smoothness can be improved, and the driving comfort is improved.
Among the prior art, thereby two separation and reunion automatic transmission drive through the motor of shifting gears and realize the control of shifting, and is concrete, and the motor of shifting gears connects two pairs of double tooth and again with the gear connection on the hub of shifting gears, and the hub of shifting gears is shifted in the drive, and the gearshift of this structural style occupies great gearbox space, is not conform to the design that automobile parts integrated.
SUMMERY OF THE UTILITY MODEL
Based on this, the utility model aims at providing an integrated form automatic gearbox hub drive arrangement that shifts solves current hub drive arrangement that shifts structure complicacy, and occupation space is big, and the problem that the degree is not high is integrated to spare part.
The utility model adopts the technical proposal that: the utility model provides an integrated form automatic transmission hub drive arrangement that shifts, includes the motor of shifting, few tooth difference planetary gear mechanism, hub mechanism shifts:
the gear shifting motor comprises an output shaft;
the small tooth difference planetary gear mechanism comprises an inner gear ring fixed on a gearbox shell, a driving shaft meshed with the output shaft and a planetary gear connected with the driving shaft;
the hub mechanism of shifting includes the hub gear of shifting and the hub body of shifting, the hub gear of shifting passes through a plurality of mounting screws in one side of the hub of shifting, planetary gear keeps away from shift motor one side and sets up a plurality of round pin axle embedding shift in a plurality of pinholes on the hub gear of shifting.
Furthermore, threaded holes are formed in two sides of the center of a gear wheel disc surface of the gear shifting hub gear, and the gear shifting hub gear is fixed on the gear shifting hub body through three screws.
Furthermore, four pin shafts are arranged on one side, away from the gear shifting motor, of the planetary gear, the pin shafts can be embedded into the gear shifting hub gear, and the planetary gear drives the gear shifting hub mechanism to rotate together when rotating.
Furthermore, the driving shaft comprises a section of eccentric shaft, the planetary gear is fixed on the section of eccentric shaft through a ball bearing, and the planetary gear and the inner gear ring are in the same plane along the axial direction.
Further, a face thrust bearing is included between the drive shaft and the face of the shift hub gear.
Furthermore, the gear shifting hub is connected with the driving shaft through two needle roller bearings, and the needle roller bearings are arranged at two ends of an inner cavity of the gear shifting hub body.
Further, the two ends of the driving shaft comprise two mounting ball bearings.
Further, the joint of the thrust bearing end face and the gear shifting hub body comprises a gasket.
The beneficial effects of the utility model reside in that, realize the transmission of great velocity ratio through the poor planet reduction gears of few tooth, the transmission part is few, has saved and has arranged the space, and the hub gear of shifting can external other driven mechanisms that probably need in addition, with other actuating mechanism fast integrated to this driving system in.
Drawings
Fig. 1 is an exploded assembly schematic view of a shift hub driving device of a middle integrated automatic transmission of the present invention;
fig. 2 is an assembly schematic diagram of the gear shifting hub driving device of the middle integrated automatic transmission of the present invention;
description of the main element symbols:
1. a shift motor; 2. an inner gear ring; 3. a planetary gear; 4. a screw; 5. a shift hub gear; 6. a first needle bearing; 7. a gasket; 8. a second mounting ball bearing; 9. a shift hub body; 10. a second needle bearing; 11. an end face thrust bearing; 12. a first ball bearing; 13. a drive shaft; 14. the first mounting ball bearing.
The following detailed description of the invention will be further described in conjunction with the above-identified drawings.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 2, an integrated automatic transmission gear shifting hub driving device according to an embodiment of the present invention is shown, including a gear shifting motor 1, a small tooth difference planetary gear mechanism, and a gear shifting hub mechanism.
The utility model discloses a most crucial design lies in through the poor planetary gear mechanism of few tooth to the rotation kinetic energy speed reduction increase moment of torsion that shift motor 1 provided, satisfies the demand of shifting of hub mechanism of shifting then, and this device carries out the advantage that slows down and increase the torsion through the poor planetary gear mechanism of few tooth is compact structure, has saved the arrangement space, has realized simultaneously that spare part integrates.
Specifically, the gear shifting motor 1 includes an output shaft, the motor can provide rotational kinetic energy for the output shaft, the planetary gear mechanism with small tooth difference includes an inner gear ring 2 fixed on the casing of the transmission case, a driving shaft 13 engaged with the output shaft, and a planetary gear 3 connected to the driving shaft 13, the driving shaft 13 drives the planetary gear 3 to rotate, the planetary gear 3 is engaged with the inner gear ring 2 when rotating, and according to the principle of the planetary gear mechanism with small tooth difference, the speed ratio is iF/(Zb-Z0), wherein the tooth number of the inner gear ring 2 is Zb, the tooth number of the planetary gear 3 is Z0, that is, the speed ratio is the tooth number of the inner gear ring/the tooth number of the inner gear ring and the tooth number of the planetary gear.
The hub mechanism of shifting includes hub gear 5 and the hub body 9 of shifting, and hub gear 5 of shifting installs in one side of hub body 9 of shifting through a plurality of screws 4, and planetary gear 3 keeps away from 1 one side of the gear motor and sets up a plurality of round pin axle embedding shift among a plurality of pinholes on hub gear 5, wherein round pin axle and pinhole eccentric settings. The planetary gear 3 transfers torque to the shift hub assembly by the pin while rotating.
Preferably, in order to improve the speed reduction and torque increase efficiency of the integrated automatic transmission gear shifting hub driving device, the driving shaft 13 further comprises a section of eccentric shaft, the planetary gear 3 is fixed on the section of eccentric shaft through the first ball bearing 12, the axial directions of the planetary gear 3 and the inner gear ring 2 are in a plane, the inner gear ring 2 and the planetary gear 3 are designed into differential teeth, when the driving shaft 13 rotates, the planetary gear 3 can make a deflection motion around the inner gear ring 2, wherein the planetary gear 3 is arranged on the section of the eccentric shaft, so that the diameter of the planetary gear 3 is greatly reduced, the number of teeth of the planetary gear 3 is reduced, according to a speed ratio formula iF ═ Zb/(Zb-Z0), the speed ratio is increased, and the speed reduction and torque increase effects are better.
In addition, because the number of the meshing teeth of the planetary gear 3 and the inner gear ring 2 is large when the planetary gear works, the bearing capacity is high, and the lightweight design of parts is facilitated.
Specifically, planetary gear 3 keeps away from 1 one side of gear shifting motor and is equipped with four round pins, but round pin axle embedding installation to the hub gear 5 of shifting, and hub gear 5 of shifting passes through screw 4 to be fixed on hub body 9 of shifting. Thereby planetary gear 3 pivoted in through above-mentioned round pin axle transmission kinetic energy, drive hub body 9 and the hub gear 5 rotation of shifting, the chamber both ends set up two bearing and drive shaft 13 and are connected in the hub body 9 that shifts, 9 inner chambers of hub body are close to hub gear 5 one end of shifting and establish to first bearing 6, 9 inner chambers of hub body of shifting are kept away from hub gear 5 one end of shifting and are established to second bearing 10, hub gear 5 departments of shifting can external other actuating mechanism that probably need (like parking, clutch actuating mechanism etc.), consequently the utility model provides an automatic gearbox hub drive arrangement that shifts integrates the degree height, can satisfy the usage that provides multiple annex.
In the present embodiment, preferably, the planetary gear mechanism with small teeth difference 3 and the shift hub mechanism are supported by a driving shaft 13 together, the shift hub body 9 is connected with the driving shaft 13 through the first needle bearing 6 and the second needle bearing 10, both ends of the driving shaft 13 further include a first mounting ball bearing 14 and a second mounting ball bearing 8, and the whole driving device is mounted on the transmission housing through the first mounting ball bearing 14 and the second mounting ball bearing 8.
The first needle bearing 6 and the second needle bearing 10 in this embodiment are merely for convenience of identification, and are not limited to specific ball rods, the first needle bearing 6 may be referred to as the second needle bearing 10, the second needle bearing 10 may also be referred to as the first needle bearing 6, and similarly, the first ball bearing 14 and the second ball bearing 8 may be replaced correspondingly.
Preferably, including an end thrust bearing 11 between drive shaft 13 and the hub body 9 terminal surface of shifting, because be equipped with the spout on the hub body 9 of shifting, the cylindrical cam drives external shift fork at the motion and removes and realize shifting, can drive hub body 9 of shifting and hub gear 5 of shifting to rotate simultaneously when planetary gear 3 rotates, hub body 9 of shifting and drive shaft 13 both sides are connected through first bearing 6 and second bearing 10, drive shaft 13 and hub body 9 axial terminal surface of shifting pass through end thrust bearing 11 and connect, the cylindrical cam in the hub body 9 spout of shifting transmits to drive shaft 13 at the axial force that the motion in-process produced, then transmit to the gearbox casing by end thrust bearing 11, can effectively prevent to shift hub assembly axial float.
Furthermore, in order to facilitate the installation and positioning of the thrust bearing 11 and the driving shaft 13 and to enable the axial force applied to the driving shaft 13 to be better transmitted axially through the thrust bearing 11, a gasket 7 is arranged at the joint of the end face of the thrust bearing 11 applying the moment and the gear shifting hub body 9, so that the flatness of the joint of the end face of the thrust bearing 11 applying the moment and the gear shifting hub body 9 is increased, and the gear shifting hub body 9 is prevented from being damaged.
The utility model discloses a theory of operation is: the gear shifting motor 1 transmits the rotating speed to the driving shaft 13 when in work, drives the planetary gear 3 arranged on the eccentric part of the driving shaft 13 to rotate, the inner gear ring 2 is fixed on a transmission shell and is designed into differential teeth with the planetary gear 3, the speed ratio is the difference of the number of the inner gear ring/the inner gear ring and the number of the teeth of the planetary gear according to the principle of a planetary mechanism with less teeth difference, the power of the motor is reduced and torque-increased by the gear and is transmitted to the planetary gear 3, the planetary gear 3 drives the gear shifting hub gear 5 and the gear shifting hub body 9 to rotate at the same rotating speed through a pin shaft extending out of the side surface, and the groove on the gear shifting hub body 9 forms a cylindrical cam to move to drive an external shifting fork to move so as to realize gear shifting.
The transmission with a larger speed ratio is realized through the planetary speed reducing mechanism with less tooth difference, the number of transmission parts is small, the arrangement space is saved, in addition, the gear shifting hub gear 5 can be externally connected with other driving mechanisms which may be needed, and other executing mechanisms are rapidly integrated into the power system.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (8)
1. The utility model provides an integrated form automatic transmission hub drive arrangement that shifts which characterized in that, includes the motor of shifting, few tooth difference planetary gear mechanism, hub mechanism shifts:
the gear shifting motor comprises an output shaft;
the small tooth difference planetary gear mechanism comprises an inner gear ring fixed on a gearbox shell, a driving shaft meshed with the output shaft and a planetary gear connected with the driving shaft;
the hub mechanism of shifting includes the hub gear of shifting and the hub body of shifting, the hub gear of shifting passes through a plurality of mounting screws in one side of the hub of shifting, planetary gear keeps away from shift motor one side and sets up a plurality of round pin axle embedding shift in a plurality of pinholes on the hub gear of shifting.
2. The integrated automatic transmission shift hub drive of claim 1, wherein threaded holes are provided on both sides of the center of the gear wheel disc face of the shift hub gear, and the shift hub gear is fixed to the shift hub body by three screws.
3. An integrated automatic transmission shift hub drive as claimed in claim 2, wherein the planetary gear has four pins on a side remote from the shift motor, the pins being adapted to be embedded in the shift hub gear, the planetary gear rotating to rotate the shift hub mechanism.
4. The integrated automatic transmission shift hub drive of claim 1, wherein the drive shaft includes an eccentric shaft, the planetary gears are fixed to the eccentric shaft by ball bearings, and the planetary gears are in a plane with the axial direction of the inner gear ring.
5. The integrated automatic transmission shift hub drive of claim 1, including a face thrust bearing between the drive shaft and the face of the shift hub gear.
6. The integrated automatic transmission shift hub drive of claim 1, wherein the shift hub is connected to the drive shaft by two needle bearings disposed at opposite ends of the shift hub body interior cavity.
7. The integrated automatic transmission shift hub drive of claim 1, wherein the drive shaft includes two mounting ball bearings at each end.
8. The integrated automatic transmission shift hub drive of claim 5, wherein an end face of the thrust bearing in combination with the shift hub body includes a spacer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120269193.6U CN214331453U (en) | 2021-01-29 | 2021-01-29 | Integrated automatic gearbox gear shifting hub driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120269193.6U CN214331453U (en) | 2021-01-29 | 2021-01-29 | Integrated automatic gearbox gear shifting hub driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214331453U true CN214331453U (en) | 2021-10-01 |
Family
ID=77907115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120269193.6U Active CN214331453U (en) | 2021-01-29 | 2021-01-29 | Integrated automatic gearbox gear shifting hub driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214331453U (en) |
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2021
- 2021-01-29 CN CN202120269193.6U patent/CN214331453U/en active Active
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