CN208870981U - A kind of automatic transmission of servo direct driving shift - Google Patents
A kind of automatic transmission of servo direct driving shift Download PDFInfo
- Publication number
- CN208870981U CN208870981U CN201820914237.4U CN201820914237U CN208870981U CN 208870981 U CN208870981 U CN 208870981U CN 201820914237 U CN201820914237 U CN 201820914237U CN 208870981 U CN208870981 U CN 208870981U
- Authority
- CN
- China
- Prior art keywords
- gear
- output shaft
- driven gear
- gears
- nut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Gear-Shifting Mechanisms (AREA)
- Structure Of Transmissions (AREA)
Abstract
A kind of automatic transmission of servo direct driving shift, including main control unit, five pairs of roller gear groups, the output shaft 8, one of input shaft 7, one leadscrew-nut mechanism, a shell 1 and an AC servo motor 18；Each driving gear sequentially passes through key and is fixedly connected with input shaft 7 in five pairs of roller gear groups；Driven gear sequentially empty set on output shaft 8；The center of each driven gear is circular hole, circular hole two sides are arranged symmetrically two special-shaped indent through-holes, lead screw 9 in screw pair is embedded in the hollow position of output shaft 8, AC servo machinery driving screw pair and interior and exterior cam mechanism are controlled using main control unit, so that engagement and disengagement between driven gear and output shaft, to realize that input shaft carries out power transmitting or even on-off by different gear ratio from output shaft；The present apparatus is not necessarily to manual intervention, and the intermediate transmissions element such as no synchronizer has many advantages, such as that compact-sized, control is simple, can promote in internal combustion automobile and pure electric automobile.
Description
Technical field
The utility model belongs to technical field of mechanical automation, is related to a kind of automatic transmission of servo direct driving shift, uses
Make the drive transmission device in automobile chassis.
Background technique
With the swift and violent raising of national economy, auto industry level, automatic gear-box simplifies the operation stream of manual shift
Journey can provide smooth gear shifting, easy to operate, the stable function of starting for automobile, it is in vehicle transmission technology development process
One important invention.In automotive field, the entrucking rate of automatic gear-box has been obtained very big raising, and existing automobile
Automatic gear-box includes: automatic gear-box (AT), stepless transmission (CVT) and double three kinds of clutch gearboxes (DCT), and is become automatically
Two kinds of patterns of semi-automatic transmission (AMT) included by fast case (AT) and list type gearbox, it is less due to carrying vehicle,
It gradually fades out automobile market.
Existing automatic gear-box, instead of the dry clutch in traditional manual gearbox, will be sent out using fluid torque-converter
The power of motivation is transmitted to planetary gear mechanism, has many advantages, such as that technology maturation, cost is relatively low, power bearing capacity is big for research and development, still
There is also mechanism complexity, repair the disadvantages of difficult and maintenance cost is high, increase especially with the gear of automatic gear-box, planet
The structure of gear mechanism is more complicated, huger, and the more complicated gearshift the more clumsy, and the volume and research and development cost of gearbox substantially increase
Add.
Stepless transmission (CVT) is also known as continuous variable transmission or infinitely variable transmission, and this gearbox is more automatic than traditional
Gearbox (AT) structure is simpler, using the combination of cone pulley group and metallic link belt, instead of the gear drive in conventional gearbox,
Power transmission continuously without breakpoint is realized, allows and function is started to be maintained under ideal operating condition for a long time.With stable drive, zero
The advantages that component is few, light-weight, small in size especially can guarantee the effect of engine continuous work and fuel-economizing under economic speed
Fruit.But because the service life of its metallic link belt is low, it is easy the defects of skidding, so that the carrying of its power is limited, maintenance cost is high.
Double clutch gearboxes use driving mechanism identical with transmission manual transmission and two groups of the independent of clutch are handed over
For running, can achieve stepless transmission (CVT) without breakpoint power output, there is the high-bearing capacity with conventional manual transmission
Advantage, fast advantage corresponding to the shift of stepless transmission (CVT), but since its technique requires height, technical maturity is opposite
Lower, failure rate is higher；The specific heat load and bearing capacity size of double clutch become the contradiction of one group of inevitability.
Several existing common automotive transmissions are compared, find different speed changers in transmission efficiency, bearing capacity, manufacture
All there is defect outstanding in technique and reliability etc., therefore, invent a kind of gear drive and electric-machine directly-driven shift combines
Servo direct driving shift automatic transmission, meet the actual demands such as transmission efficiency is high, manufacturing process is simple, reliability is high, tool
There is engineering practical value outstanding.
Summary of the invention
The utility model provides a kind of automatic transmission of servo direct driving shift, realizes AC servo by main control unit
Motor automatically controls leadscrew-nut mechanism, to realize self shifter process, slippage is greatly reduced and manufacture adds
The difficulty of work.
The technical solution adopted in the utility model is as follows:
A kind of automatic transmission of servo direct driving shift, including main control unit, five pairs of roller gear groups, an input shaft
7,8, leadscrew-nut mechanisms of an output shaft, a shell 1 and an AC servo motor 18；Shell 1 is that axial direction is parallel,
Two opposite taper hollow shell structures of the vertex of a cone；One AC servo motor 18 drives a leadscrew-nut mechanism by shaft coupling 16
In lead screw 9 rotate, the lead screw 9 of rotation drives nut 15 to slide along lead screw axis；The shell of AC servo motor 18 and output
Axis 8 is fixedly connected；Lead screw 9 is not moved relative to AC servo motor 18 by bearing and is only rotated；Input shaft 7 and output shaft 8 are mutual
In parallel, 7 both ends of input shaft are mounted on shell 1 by bearing, and output shaft 8 is fixed on the both ends of shell 1 by bearing, pass through method
Output shaft 8 is fixedly connected by blue disk 17 with AC servo motor 18.
Output shaft 8 is the plain shaft structure of hollow arbor braid sliding slot, and the lead screw 9 in screw pair is embedded in the hollow of output shaft 8
Position；Nut 15 is the cam structure with two outward flanges, and two outward flanges of nut 15 can slide axially in sliding slot, nut
15 two outward flange maximum gauges are greater than the diameter of output shaft 8.
Five pairs of roller gear groups include driving gear group and driven gear group two parts, and wherein driving gear group includes a gear
Driving gear 2, two gear driving gear 3, three keep off driving gear 4, four and keep off the gear driving gear 6 of driving gear 5, five；Driven gear group
Driven gear 12, four, which is kept off, including a gear driven gear 14, second gear driven gear 13, three keeps off the gear driven gear of driven gear 11, five
10；One gear driving gear 2 is engaged with a gear driven gear 14, and the end face of the driving and driven gear of same gear is concordant；Second gear is actively
Gear 3 is engaged with second gear driven gear 13, and the end face of two gears is concordant, and three gears, four gears, five gears are also such；Driving gear group
In each gear sequentially pass through key and be fixedly connected on input shaft 7；Each gear of driven gear group sequentially empty set in output shaft 8
On, and can be rotated relative to output shaft 8, the spacing of adjacent two gear is slightly larger than the axial length of nut 15 in driven gear group.
Each gear centre of driven gear group is that round tube hole adds two special-shaped indent through-hole structures, and the diameter of round tube hole is than defeated
The elongated slot section diameter of shaft 8 is bigger, and the two sides of round tube hole are arranged symmetrically the shape and the two of nut 15 of two special-shaped indent through-holes
The profile of a external cam is close, and two external cams of nut 15 can be from the special-shaped indent through-hole of each gear in driven gear group
It slides in or out.
The utility model has the beneficial effects that a kind of automatic transmission of servo direct driving shift is handed over using main control unit control
Flow servo motor drives screw pair and interior and exterior cam mechanism, realizes engagement and disengagement between driven gear and output shaft,
Power transmitting or even on-off are carried out according to different gear ratio between input shaft and output shaft to realize；The present apparatus is not necessarily to people
Work intervention, and without the intermediate transmissions element such as synchronizer, has compact-sized, controls outstanding advantages of simple, can be in internal combustion engine
It is promoted in automobile, especially pure electric automobile.
Detailed description of the invention
Fig. 1 is the outline drawing of the utility model；
Fig. 2 is the A-A cross-sectional view in Fig. 1；
Fig. 3 is the B-B cross-sectional view in Fig. 2；
Fig. 4 is figure nut and screw structure figure；
Fig. 5 is the structure chart of nut driven gear.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawing.
As shown in Figure 1, Figure 2 and Fig. 3, the automatic transmission of servo direct driving shift, including main control unit, five pairs of roller gears
Group, the output shaft 8, one of input shaft 7, one leadscrew-nut mechanism, a shell 1 and an AC servo motor 18；Shell
Body 1 is axial parallel, two opposite taper hollow shell structures of the vertex of a cone；One AC servo motor 18 drives one by shaft coupling 16
Lead screw 9 in a leadscrew-nut mechanism rotates, and the lead screw 9 of rotation drives nut 15 to slide along lead screw axis；Pass through ring flange 17
Output shaft 8 is fixedly connected with AC servo motor 18, output shaft 8 and lead screw 9 output shaft with AC servo motor 18 simultaneously
Connection, realizes the synchronous rotation of three；Lead screw 9 is not moved relative to AC servo motor 18 by bearing and is only rotated；7 He of input shaft
Output shaft 8 is parallel to each other, and 7 both ends of input shaft are mounted on shell 1 by bearing, and output shaft 8 is fixed on shell 1 by bearing
Both ends.All in all, the automatic transmission of servo direct driving shift is made of the two parts that are driven and shift gears, and the function of running part is
The output power of engine or motor is passed to from input shaft, by one group of gear shift in five pairs of roller gear groups it
Afterwards, it is exported by output shaft；And there is AC servo machinery driving leadscrew-nut mechanism in part of shifting gears, realizes abnormity nut along sky
The axial sliding of heart output shaft is achieved that the gear of the position becomes transmission gear when nut is moved to different axial positions
Group, and other four pairs of roller gears in five pairs of roller gears become idle pulley and dally.
Output shaft 8 is the plain shaft structure of hollow arbor braid sliding slot, and the lead screw 9 in screw pair is embedded in the hollow of output shaft 8
Two outward flanges of position, nut 15 can slide axially in sliding slot, and two outward flange maximum gauges of nut 15 are greater than output shaft 8
Outside maximum gauge；Lead screw 9 is axially fixed, by the driving of AC servo motor 18 around own axis, and nut 15
It is slid in the sliding slot of output shaft 8；Screw pair is driven by AC servo motor 18, therefore nut 15 and output shaft 8
Specific location can be realized and the accurate control to AC servo motor 18.
Five pairs of roller gear groups include driving gear group and driven gear group two parts, and wherein driving gear group includes a gear
Driving gear 2, two gear driving gear 3, three keep off driving gear 4, four and keep off the gear driving gear 6 of driving gear 5, five；Driven gear group
Driven gear 12, four, which is kept off, including a gear driven gear 14, second gear driven gear 13, three keeps off the gear driven gear of driven gear 11, five
10；One gear driving gear 2 is engaged with a gear driven gear 14, and the end face of the driving and driven gear of same gear is concordant；Second gear is actively
Gear 3 is engaged with second gear driven gear 13, and the end face of two gears is concordant, and three gears, four gears, five gears are also such；Driving gear group
In each gear sequentially pass through key and be fixedly connected on input shaft 7；Each gear of driven gear group sequentially empty set in output shaft 8
On, and can be rotated relative to output shaft 8, the spacing of adjacent two gear is slightly larger than the axial length of nut 15 in driven gear group.
Each gear centre of driven gear group is that round tube hole adds two special-shaped indent through-hole structures, and the diameter of round tube hole is than defeated
The elongated slot section diameter of shaft 8 is bigger, and the two sides of round tube hole are arranged symmetrically the shape and the two of nut 15 of two special-shaped indent through-holes
The profile of a outward flange is close, and two outward flanges of nut 15 can be from the special-shaped indent through-hole of each gear in driven gear group
In slide in or out.
Working principle of the utility model is:
It is provided with main control unit in the automatic transmission of servo direct driving shift, for the shift of real-time monitoring servo direct driving
The actual moving process of automatic transmission；Main control unit exports revolving speed, dtc signal and wheel according to the engine of acquisition
Actual speed, dtc signal judge automatically the specific gear and gear shift operation process of the automatic transmission of servo direct driving shift；When
When needing to shift gears, main control unit sends instruction to the drive control device of AC servo motor 18, is driven with AC servo motor
The forward and backward of lead screw 9, to realize that nut 15 slides along the axial direction of output shaft 8, in the external cam and driven gear of nut 15
The switching between two neighboring gear is realized in engagement between recessed through-hole.
The specific work process of the automatic transmission of servo direct driving shift:
When automobile is inactive or when being in neutral gear, nut 15 is between shell 1 and a gear driven gear 14, input shaft 7
It is rotated under the dragging of engine or motor, and output shaft 8 does not turn.
When hand engaging gear, AC servo motor 18 work, drive lead screw 9 rotate, nut 15 move right to one gear from
The inside of moving gear 14, the power of engine or motor keeps off driving gear 2, one by input shaft 8, one and keeps off driven gear at this time
14, output shaft 8, reduction of speed torque increase are exported from output shaft 8 later.
When engine accelerates, the engine of the automatic transmission of servo direct driving shift being collected into according to central processing unit
Revolving speed, the revolving speed of dtc signal and wheel, dtc signal, driving AC servo motor 18 rotate, and drive the rotation of lead screw 9 and nut
15 move right, and after nut is deviate from by gear 14 center portion of driven gear, slide into 13 center portion of second gear driven gear, engine rapidly
Or the power of motor passes through input shaft 7, two gear driving gear 3, second gear driven gear 13, output shaft 8, after reduction of speed torque increase from
Output shaft 8 exports, and realizes speedup shift process；Engine further accelerates, and can sequentially change to three gears, four gears and five gears.
When engine retard, central processing unit according to the revolving speed of the engine speed, dtc signal and the wheel that are collected into,
Dtc signal issues control signal to the drive control device of AC servo motor 18, and AC servo motor 18 rotates backward, and drives
Lead screw 9 is rotated backward to be moved to the left with nut 15, nut by five gear 10 center portions of driven gear deviate from after, rapidly slide into four gear from
The power of the center portion of moving gear 11, engine or motor by input shaft 7, four keep off driving gear 5, four keep off driven gear 11,
It after output shaft 8, is exported from output shaft 8, realizes reduction of speed shift process；Engine slows down again, can sequentially change to three gears, second gear
With a gear, neutral gear position is finally entered.
Claims (4)
1. a kind of automatic transmission of servo direct driving shift, it is characterised in that: including main control unit, five pairs of roller gear groups,
One input shaft (7), an output shaft (8), a leadscrew-nut mechanism, a shell (1) and an AC servo motor
(18)；Shell (1) is axial parallel, two opposite taper hollow shell structures of the vertex of a cone；One AC servo motor (18) passes through connection
Axis device (16) drives lead screw (9) rotation in a leadscrew-nut mechanism, and the lead screw (9) of rotation drives nut (15) along lead screw shaft
Line sliding；Output shaft (8) is fixedly connected with AC servo motor (18) by ring flange (17), output shaft (8) and lead screw (9)
Output axis connection with AC servo motor (18) simultaneously, realizes the synchronous rotation of three；Lead screw (9) is exchanged by the way that bearing is opposite
Servo motor (18), which does not move, only to be rotated；Input shaft (7) and output shaft (8) are parallel to each other, and input shaft (7) both ends are pacified by bearing
On shell (1), output shaft (8) is fixed on the both ends of shell (1) by bearing.
2. a kind of automatic transmission of servo direct driving shift according to claim 1, it is characterised in that: output shaft (8) is
The plain shaft structure of hollow arbor braid sliding slot, the lead screw (9) in screw pair are embedded in the hollow position of output shaft (8)；Nut (15)
It is the cam structure with two outward flanges, two outward flanges of nut (15) can slide axially in sliding slot, and the two of nut (15)
Outward flange maximum gauge is greater than the outside maximum gauge of output shaft (8).
3. a kind of automatic transmission of servo direct driving shift according to claim 1, it is characterised in that: five pairs of roller gears
Group includes driving gear group and driven gear group two parts, and wherein driving gear group includes gear driving gear (2), second gear active
Gear (3), three gears driving gear (4), four gears driving gear (5), five gears driving gear (6)；Driven gear group include one gear from
Moving gear (14), second gear driven gear (13), three gears driven gear (12), four gears driven gear (11), five gear driven gears
(10)；One gear driving gear (2) is engaged with gear driven gear (14), and the end face of the driving and driven gear of same gear is concordant；Two
Gear driving gear (3) is engaged with second gear driven gear (13), and the end face of two gears is concordant, and three gears, four gears, five gears are also such；
Each gear of driving gear group sequentially passes through key and is fixedly connected with input shaft (7)；Sequentially empty set exists each gear of driven gear group
It on output shaft (8), and can be rotated relative to output shaft (8), the spacing of adjacent two gear is slightly larger than nut (15) in driven gear group
Axial length.
4. a kind of automatic transmission of servo direct driving shift according to claim 1 or 2, it is characterised in that: driven gear
Each gear centre of group is that round tube hole adds two special-shaped indent through-hole structures, the elongated slot section of the diameter of round tube hole than output shaft (8)
Diameter is bigger, and the two sides of round tube hole are arranged symmetrically the exterior feature of the shape of two special-shaped indent through-holes and two outward flanges of nut (15)
Shape is close, and two outward flanges of nut (15) can slide into or slide from the special-shaped indent through-hole of each gear in driven gear group
Out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820914237.4U CN208870981U (en) | 2018-06-13 | 2018-06-13 | A kind of automatic transmission of servo direct driving shift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820914237.4U CN208870981U (en) | 2018-06-13 | 2018-06-13 | A kind of automatic transmission of servo direct driving shift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208870981U true CN208870981U (en) | 2019-05-17 |
Family
ID=66462207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820914237.4U Expired - Fee Related CN208870981U (en) | 2018-06-13 | 2018-06-13 | A kind of automatic transmission of servo direct driving shift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208870981U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506429A (en) * | 2018-06-13 | 2018-09-07 | 陕西理工大学 | The automatic transmission of servo direct driving shift |
| CN110385700A (en) * | 2019-08-13 | 2019-10-29 | 中国科学院深圳先进技术研究院 | Transmission device and exoskeleton robot |
| CN111451289A (en) * | 2020-04-08 | 2020-07-28 | 扬州泰富智造传动装备有限公司 | Speed reducer of vertical rolling mill |
| WO2022112506A1 (en) * | 2020-11-27 | 2022-06-02 | Valeo Embrayages | Gear shift device and associated mobility vehicle |
| FR3116795A1 (en) * | 2020-11-27 | 2022-06-03 | Valeo Embrayags | Speed change device and associated mobility device. |
| CN115263938A (en) * | 2022-06-30 | 2022-11-01 | 中国第一汽车股份有限公司 | Clutch actuating mechanism and vehicle |
-
2018
- 2018-06-13 CN CN201820914237.4U patent/CN208870981U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506429A (en) * | 2018-06-13 | 2018-09-07 | 陕西理工大学 | The automatic transmission of servo direct driving shift |
| CN110385700A (en) * | 2019-08-13 | 2019-10-29 | 中国科学院深圳先进技术研究院 | Transmission device and exoskeleton robot |
| CN111451289A (en) * | 2020-04-08 | 2020-07-28 | 扬州泰富智造传动装备有限公司 | Speed reducer of vertical rolling mill |
| CN111451289B (en) * | 2020-04-08 | 2022-04-08 | 扬州泰富智造传动装备有限公司 | Speed reducer of vertical rolling mill |
| WO2022112506A1 (en) * | 2020-11-27 | 2022-06-02 | Valeo Embrayages | Gear shift device and associated mobility vehicle |
| FR3116795A1 (en) * | 2020-11-27 | 2022-06-03 | Valeo Embrayags | Speed change device and associated mobility device. |
| CN115263938A (en) * | 2022-06-30 | 2022-11-01 | 中国第一汽车股份有限公司 | Clutch actuating mechanism and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208870981U (en) | A kind of automatic transmission of servo direct driving shift | |
| CN102678839B (en) | Double-clutch transmission used in tractor | |
| CN101713448B (en) | Double clutch type automatic gearbox | |
| CN201705861U (en) | Double-clutch automatic transmission | |
| JP2022503343A (en) | All-gear stepless automatic transmission and rotation ratio active control system | |
| CN201827306U (en) | Double-clutch type automatic transmission | |
| CN101949430A (en) | Novel double clutch type automatic transmission (DCT) layout structure | |
| CN108131426A (en) | A kind of friction disk clutch formula two-stage self shifter, which becomes, turns round gear mechanism | |
| CN201390152Y (en) | Automatic gear shifting power system of electric vehicle | |
| CN111677821A (en) | Gear drive stepless speed changer | |
| CN102102738B (en) | Multi-clutch transmission | |
| CN203627679U (en) | Manual multiple-shift transmission | |
| CN202349119U (en) | Double-clutch transmission for tractor | |
| CN202628959U (en) | Automatic speed changer with two clutches | |
| CN204226621U (en) | A kind of mixed power speed variator system | |
| CN204312693U (en) | A kind of motor drives the gearbox of gearshift | |
| CN108506429A (en) | The automatic transmission of servo direct driving shift | |
| CN104315140A (en) | Speed changing box of motor-driven gear shifting mechanism | |
| CN101769364A (en) | Vehicle dual-clutch transmission | |
| CN204878684U (en) | Shifter suitable for 6 shelves gearbox | |
| CN204312692U (en) | Motor drives the gearbox of gearshift | |
| CN217422057U (en) | Coaxial double-clutch pneumatic gear shifting gearbox | |
| CN208381240U (en) | A kind of stage-geared gearbox of self shifter | |
| CN204253831U (en) | Mixed power speed variator system | |
| CN104315141A (en) | Gearbox for motor-driven gear shift mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190517 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |