CN105082995A - Automatic gear shifting rear axle assembly - Google Patents
Automatic gear shifting rear axle assembly Download PDFInfo
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- CN105082995A CN105082995A CN201510440833.4A CN201510440833A CN105082995A CN 105082995 A CN105082995 A CN 105082995A CN 201510440833 A CN201510440833 A CN 201510440833A CN 105082995 A CN105082995 A CN 105082995A
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- gear
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- reducing gear
- shifting
- fork
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Abstract
The invention discloses an automatic gear shifting rear axle assembly which comprises a multi-gear main reducing gear, a differential mechanism, a left axle pipe and a right axle pipe. A left half axle and a right half axle of the differential mechanism are in rotary fit with the left axle pipe and the right axle pipe in a corresponding supporting manner respectively, and power is output to a left wheel axle and a right wheel axle of a vehicle. The multi-gear main reducing gear is provided with an engagement sleeve used for gear shifting, a shifting fork assembly used for driving the engagement sleeve to move in the axial direction, a power assembly used for driving the shifting fork assembly to do reciprocating motion for gear shifting and a shifting fork position detection device, and the shifting fork position detection device is used for detecting the position of the shifting fork assembly, and therefore the power assembly is controlled to move. The automatic gear shifting rear axle assembly has few gear shifting elements, is fast in gear shifting response and meanwhile has high gear shifting precision, and therefore the situation that gear shifting is not in place is avoided.
Description
Technical field
The present invention relates to vehicle rear axle field, specifically a kind of self shifter back axle assembly.
Background technology
For giving full play to the dynamic property of automobile and improving fuel economy, some self-propelled vehicle fills the rear axle structure with there being two gear speed ratio dual ratio final drives.This dual ratio final drive, when gear shift, by shift motor providing source power or rotating speed, after speed reduction gearing slows down, is converted to the rotary motion of cam, and the rotation forces of cam is enclosed within the shift fork rectilinear movement on declutch shift shaft, and then realizes gear switch.Adopt this structure, many owing to participating in gear shift original paper quantity, transferring power is complicated, add the rate of breakdown of gearshift, worm and gear, the manufacturing and designing of cam mechanism also exist product design hidden danger, and worm and gear, cam mechanism difficulty of processing are large, manufacturing cost is high.In addition, when gear shift, due to cam mechanism generation undue wear after accuracy of manufacture factor or Long-Time Service, always there is gap in cam mechanism, thus the phenomenon easily causing gear shift not in place.
Therefore, for overcoming the above problems, needing that a kind of shifting element is few, gearshift reaction is fast, there is higher gearshift precision simultaneously, thus avoid self shifter back axle assembly not in place of shifting gears.
Summary of the invention
In view of this, the object of the invention is to overcome defect of the prior art, provide that a kind of shifting element is few, gearshift reaction is fast, there is higher gearshift precision simultaneously, thus avoid self shifter back axle assembly not in place of shifting gears.
Self shifter back axle assembly of the present invention, comprises many grades of main reduction gears, diff, left bridge tube and right bridge tube; The left half axle of described diff and right axle shaft respectively normal-running fit correspondence are supported in described left bridge tube and right bridge tube and output power to the revolver axle of vehicle and right wheel shaft; Described many grades of main reduction gears are provided with sliding hub for shifting gears, for driving the pull-fork assembly of combined cover movement vertically, for driving described pull-fork assembly to move back and forth to carry out the Power Component of shifting gears and for detecting pull-fork assembly position thus controlling the shift fork position detecting device of Power Component action;
Further, described shift fork position detecting device comprises and is arranged at the magnetic induction part on pull-fork assembly and the sensor for gathering described magnetic induction part location information;
Further, described pull-fork assembly comprises declutch shift shaft and is fixed on the shift fork of described declutch shift shaft; Described Power Component is comprised and is rotatably arranged at many grades of bevel housings around axial single degree of freedom and the driven gear being carried out worm drive with described declutch shift shaft by screw thread fit;
Further, described declutch shift shaft is provided with and carries out locking stopper assembly for sliding axially to it, and described stopper assembly comprises the stopper groove being arranged at declutch shift shaft and the stopper body that can slip into or skid off this stopper groove;
Further, described many grades of main reduction gears comprise the first reducing gear and the second reducing gear; Described sliding hub is between described first reducing gear and the second reducing gear, and described sensor comprises for judging first sensor that combined cover engages with the first reducing gear, for judging the second sensor that combined cover engages with the second reducing gear and for judging that combined cover is positioned at the 3rd sensor of meta;
Further, described diff comprises differential casing and differential gear assembly, described differential casing is fixedly installed the first input gear engaged with described first reducing gear and the second input gear engaged with described second reducing gear;
Further, described stopper groove comprises the right cell body engaged with the first reducing gear for locking knot trap, the middle cell body keeping meta for locking knot trap and the left cell body engaged with the second reducing gear for locking knot trap;
Further, described Power Component also comprises gear shifting drive motor and transmission is equipped with in described gear shifting drive motor output shaft and the driving gear engaged with described driven gear.
The invention has the beneficial effects as follows: self shifter back axle assembly of the present invention, power is by being passed to diff after main reduction gear deceleration increment and by diff by the left half axle of a power distribution vehicle and right axle shaft, wherein main reduction gear has many mark structures, and utilize motor, the equipment such as cylinder realize gearshift as Power Component with shift fork assembly crank motion, shift fork position detecting device can adopt the position detecting elements such as existing magnetic-inductive device to detect the location information of pull-fork assembly, control unit for controlling Power Component action accepts this location information and judges whether the gear shift action of pull-fork assembly puts in place and control the start and stop of Power Component by this location information, therefore, utilize the shift fork location information of shift fork position detecting device collection can ensure accuracy and the reliability of retarder gear shifting action with the action controlling Power Component.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of many gear main reduction gears of the present invention.
Detailed description of the invention
Fig. 1 is structural representation of the present invention, the self shifter back axle assembly of the present embodiment, comprises many grades of main reduction gears, diff, left bridge tube 1 and right bridge tube 10, the left half axle of described diff and right axle shaft respectively normal-running fit correspondence are supported in described left bridge tube 1 and right bridge tube 10 and output power to revolver axle 2 and the right wheel shaft 11 of vehicle, described many grades of main reduction gears are provided with the sliding hub 5 for shifting gears, for driving the pull-fork assembly of combined cover movement vertically, the Power Component carrying out shifting gears is moved back and forth and for detecting pull-fork assembly position thus controlling the shift fork position detecting device of Power Component action for driving described pull-fork assembly, in the present embodiment, utilize motor 15, the equipment such as cylinder realize gearshift as Power Component with shift fork assembly crank motion, shift fork position detecting device can adopt the position detecting elements such as existing magnetic-inductive device to detect the location information of pull-fork assembly, control unit for controlling Power Component action accepts this location information and judges whether the gear shift action of pull-fork assembly puts in place and control the start and stop of Power Component by this location information, therefore, utilize the shift fork location information of shift fork position probing collection can ensure accuracy and the reliability of two grades or many gear retarder gear shifting action with the action controlling Power Component.
In the present embodiment, described shift fork position detecting device comprises the magnetic induction part 19 that is arranged on pull-fork assembly and is arranged at retarder for detecting the sensor of described magnetic induction part 19 position, sensor setting has two and correspondence is arranged at two engage positions of pull-fork assembly respectively, after pull-fork assembly drives gear shift combined cover to engage, sensor receives magnetic signal and sends control signal and controls Power Component stopping driving, avoids gearshift.
In the present embodiment, described pull-fork assembly comprises declutch shift shaft and is fixed on the shift fork of described declutch shift shaft, and described declutch shift shaft is provided with outside thread, described Power Component comprise around axial single degree of freedom be rotatably arranged at retarder and with the driven gear 17 of described declutch shift shaft by screw thread fit, Power Component can adopt motor 15 grade to export the engine installation of rotary motion, and its clutch end and driven gear 17 are in transmission connection, rotate by driving driven gear 17, screw thread can be utilized to carry out worm drive thus shift fork axle moves vertically, driven gear 17 is installed on reducer shell by bearing, end float misalignment is there is for avoiding driven gear 17, can install on shaft part at the bearing of driven gear 17 and a back-up ring is set, driven gear 17 and bearing inner ring is made to realize axial restraint.
In the present embodiment, described declutch shift shaft is provided with and carries out locking stopper assembly for sliding axially to it, described stopper assembly comprises the stopper groove being arranged at declutch shift shaft and the stopper body 14 that can slip into or skid off this stopper groove, when declutch shift shaft slide into predeterminated position be stopper body 14 slip into time, stopper body 14 can lock the slip of declutch shift shaft, thus make selector fork rest on a certain gear positions, after the propulsive effort of outer bound pair declutch shift shaft exceedes particular value, stopper body 14 can skid off this stopper groove, and then the locking removed declutch shift shaft, thus realize off-gear.
In the present embodiment, described many grades of main reduction gears comprise the first reducing gear 4 and the second reducing gear 8; Described sliding hub 5 is between described first reducing gear 4 and the second reducing gear 8, described sensor comprises for judging first sensor 22 that combined cover engages with the first reducing gear 4, for judging the second sensor 20 that combined cover engages with the second reducing gear 8 and for judging that combined cover is positioned at the 3rd sensor 21 of meta, judge whether pull-fork assembly is positioned at the engage position with the first reducing gear 4 or the second reducing gear 8 accurately by sensor, avoid sliding hub 5 shift gears not in place or cross gearshift.
In the present embodiment, described diff comprises differential casing 13 and differential gear assembly 12, described differential casing 13 is fixedly installed the first output gear 3 engaged with described first reducing gear 4 and the second input gear 9 engaged with described second reducing gear 8, differential gear assembly 12 belongs to existing structure, comprise planetary wheel, left half axle gear and right axle shaft gear, do not repeat them here, wherein, first reducing gear 4 and the first output gear 3 engage and the second reducing gear 8 and the second input gear 9 engage the messenger chain forming two different drive ratios, two messenger chains can be made alternately to engage or disconnect according to power demand by combined cover.
In the present embodiment, described stopper groove comprises the right cell body engaged with the first reducing gear 4 for locking knot trap, the middle cell body keeping meta for locking knot trap and the left cell body engaged with the second reducing gear 8 for locking knot trap, thus avoid off-gear occurs.
In the present embodiment, described Power Component also comprises gear shifting drive motor 15 and transmission is equipped with in described gear shifting drive motor 15 output shaft and the driving gear 16 engaged with described driven gear 17, moves back and forth vertically by controlling drive motor 15 forward and reverse shift fork axle.
The self shifter back axle assembly of the present embodiment also comprises power input shaft 6, this power input shaft upper driving is combined with output bevel gear wheel 7, the rotating shaft of many grades of main reduction gears is provided with takes turns the 7 input finishing bevel gear cuters 23 engaged with this output bevel gear, power input shaft 6 is arranged with the rotating shaft of many grades of main reduction gears is mutually vertical, by output bevel gear wheel 7 with input the engaging transmission of power to back axle of finishing bevel gear cuter 23.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (8)
1. a self shifter back axle assembly, is characterized in that: comprise many grades of main reduction gears, diff, left bridge tube and right bridge tube; The left half axle of described diff and right axle shaft respectively normal-running fit correspondence are supported in described left bridge tube and right bridge tube and output power to the revolver axle of vehicle and right wheel shaft;
Described many grades of main reduction gears are provided with sliding hub for shifting gears, for driving the pull-fork assembly of combined cover movement vertically, for driving described pull-fork assembly to move back and forth to carry out the Power Component of shifting gears and for detecting pull-fork assembly position thus controlling the shift fork position detecting device of Power Component action.
2. self shifter back axle assembly according to claim 1, is characterized in that: described shift fork position detecting device comprises and is arranged at the magnetic induction part on pull-fork assembly and the sensor for gathering described magnetic induction part location information.
3. self shifter back axle assembly according to claim 1, is characterized in that: described pull-fork assembly comprises declutch shift shaft and is fixed on the shift fork of described declutch shift shaft; Described Power Component is comprised and is rotatably arranged at many grades of bevel housings around axial single degree of freedom and the driven gear being carried out worm drive with described declutch shift shaft by screw thread fit.
4. self shifter back axle assembly according to claim 3, it is characterized in that: described declutch shift shaft is provided with and carries out locking stopper assembly for sliding axially to it, and described stopper assembly comprises the stopper groove being arranged at declutch shift shaft and the stopper body that can slip into or skid off this stopper groove.
5. self shifter back axle assembly according to claim 2, is characterized in that: described many grades of main reduction gears comprise the first reducing gear and the second reducing gear; Described sliding hub is between described first reducing gear and the second reducing gear, and described sensor comprises for judging first sensor that combined cover engages with the first reducing gear, for judging the second sensor that combined cover engages with the second reducing gear and for judging that combined cover is positioned at the 3rd sensor of meta.
6. self shifter back axle assembly according to claim 5, it is characterized in that: described diff comprises differential casing and differential gear assembly, described differential casing is fixedly installed the first input gear engaged with described first reducing gear and the second input gear engaged with described second reducing gear.
7. self shifter back axle assembly according to claim 4, it is characterized in that: described stopper groove comprises the right cell body engaged with the first reducing gear for locking knot trap, the middle cell body keeping meta for locking knot trap and the left cell body engaged with the second reducing gear for locking knot trap.
8. self shifter back axle assembly according to claim 3, is characterized in that: described Power Component also comprises gear shifting drive motor and transmission is equipped with in described gear shifting drive motor output shaft and the driving gear engaged with described driven gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510440833.4A CN105082995B (en) | 2015-07-24 | 2015-07-24 | Self shifter rear axle assy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510440833.4A CN105082995B (en) | 2015-07-24 | 2015-07-24 | Self shifter rear axle assy |
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| Publication Number | Publication Date |
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| CN105082995A true CN105082995A (en) | 2015-11-25 |
| CN105082995B CN105082995B (en) | 2018-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510440833.4A Active CN105082995B (en) | 2015-07-24 | 2015-07-24 | Self shifter rear axle assy |
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| CN (1) | CN105082995B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106114202A (en) * | 2016-07-26 | 2016-11-16 | 连云港北方变速器有限责任公司 | Two grades of AMT rear axle assys of electric automobile |
| CN109421527A (en) * | 2017-08-31 | 2019-03-05 | 东风德纳车桥有限公司 | A kind of 2AMT electric axle assembly |
| CN109421526A (en) * | 2017-08-31 | 2019-03-05 | 东风德纳车桥有限公司 | A kind of 2AMT electric axle assembly |
| CN111677858A (en) * | 2019-03-11 | 2020-09-18 | 舍弗勒技术股份两合公司 | Power coupling control device |
| CN114458702A (en) * | 2022-02-18 | 2022-05-10 | 中国第一汽车股份有限公司 | Reduction gear disconnecting device, reduction gear and vehicle |
| CN115431675A (en) * | 2022-09-27 | 2022-12-06 | 中国重汽集团济南动力有限公司 | Penetrating type axle housing integrated with gear shifting mechanism |
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| CN201875115U (en) * | 2010-07-20 | 2011-06-22 | 浙江中马汽车变速器股份有限公司 | Second gear reducer assembly automatic gear shifting executing mechanism for electric vehicle |
| CN201963858U (en) * | 2010-11-26 | 2011-09-07 | 长城汽车股份有限公司 | Automatic gearshift of automobile transmission |
| CN202182174U (en) * | 2011-07-31 | 2012-04-04 | 长城汽车股份有限公司 | Automobile electric gearshift mechanism |
| CN203713520U (en) * | 2013-12-27 | 2014-07-16 | 重庆隆旺机电有限责任公司 | Hybrid power driving rear axle |
| CN103935238A (en) * | 2014-04-14 | 2014-07-23 | 大陆汽车投资（上海）有限公司 | Electric vehicle and electric drive system for electric vehicle |
| CN104747662A (en) * | 2015-01-14 | 2015-07-01 | 昆山德拉特兰传动科技有限公司 | Two-gear automatic transmission assembly |
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2015
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201875115U (en) * | 2010-07-20 | 2011-06-22 | 浙江中马汽车变速器股份有限公司 | Second gear reducer assembly automatic gear shifting executing mechanism for electric vehicle |
| CN201963858U (en) * | 2010-11-26 | 2011-09-07 | 长城汽车股份有限公司 | Automatic gearshift of automobile transmission |
| CN202182174U (en) * | 2011-07-31 | 2012-04-04 | 长城汽车股份有限公司 | Automobile electric gearshift mechanism |
| CN203713520U (en) * | 2013-12-27 | 2014-07-16 | 重庆隆旺机电有限责任公司 | Hybrid power driving rear axle |
| CN103935238A (en) * | 2014-04-14 | 2014-07-23 | 大陆汽车投资（上海）有限公司 | Electric vehicle and electric drive system for electric vehicle |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106114202A (en) * | 2016-07-26 | 2016-11-16 | 连云港北方变速器有限责任公司 | Two grades of AMT rear axle assys of electric automobile |
| CN109421527A (en) * | 2017-08-31 | 2019-03-05 | 东风德纳车桥有限公司 | A kind of 2AMT electric axle assembly |
| CN109421526A (en) * | 2017-08-31 | 2019-03-05 | 东风德纳车桥有限公司 | A kind of 2AMT electric axle assembly |
| CN111677858A (en) * | 2019-03-11 | 2020-09-18 | 舍弗勒技术股份两合公司 | Power coupling control device |
| CN111677858B (en) * | 2019-03-11 | 2023-01-31 | 舍弗勒技术股份两合公司 | Power coupling control device |
| CN114458702A (en) * | 2022-02-18 | 2022-05-10 | 中国第一汽车股份有限公司 | Reduction gear disconnecting device, reduction gear and vehicle |
| WO2023155388A1 (en) * | 2022-02-18 | 2023-08-24 | 中国第一汽车股份有限公司 | Speed reducer disconnecting device, speed reducer, and vehicle |
| CN115431675A (en) * | 2022-09-27 | 2022-12-06 | 中国重汽集团济南动力有限公司 | Penetrating type axle housing integrated with gear shifting mechanism |
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| CN105082995B (en) | 2018-05-04 |
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