CN204387228U - A kind of Gear Planet Transmission two-shift automatic variable speed device - Google Patents
A kind of Gear Planet Transmission two-shift automatic variable speed device Download PDFInfo
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- CN204387228U CN204387228U CN201420773620.4U CN201420773620U CN204387228U CN 204387228 U CN204387228 U CN 204387228U CN 201420773620 U CN201420773620 U CN 201420773620U CN 204387228 U CN204387228 U CN 204387228U
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- gear
- lock ring
- variable speed
- brake hoop
- automatic variable
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Abstract
A kind of Gear Planet Transmission two-shift automatic variable speed device, comprise sun gear, double-planetary gear, planet carrier, gear ring, belt brake hoop, lock ring, described planet carrier is provided with annular boss, lock ring is provided with between described gear ring outer surface and described annular boss internal surface, and the internal surface of described lock ring is fixedly connected with gear ring outer surface, a part for described lock ring outer surface contacts with described annular boss internal surface, another part is set with described belt brake hoop, one end and the mechanism housing of belt brake hoop are connected, and the other end is connected with shift actuator.The Engage and disengage that the utility model adopts lock ring, brake hoop realizes gear ring and planet carrier, reaches the effect of gearshift, fast response time, and stable movement, nothing are impacted, and can omit clutch, synchronizer and gearshift, number of spare parts is few, and structure is simple; By changing the gear ratio of planetary system, expand the excursion of velocity ratio.Be suitable for industrial applications.
Description
Technical field
The utility model discloses a kind of Gear Planet Transmission two-shift automatic variable speed device; Belong to variable transmission art field, especially the gearshift control technique field of new energy car.
Background technique
On orthodox car, for adapting to the performance characteristic of motor, meeting the usage requirement of automobile, have employed multi-speed transmission.For electric vehicle, speed changer is one of important assembly affecting electric vehicle performance, use the multi-speed transmission same with fuel vehicle unnecessary, if but cancel variable speed drive, then be difficult to take into account automobile climbing and run at high speed and wait requirement, be therefore necessary the performance characteristic redesign electric motor car variable speed drive for motor.Existing electric vehicle transmission mainly contains single reduction gear, two grades of manual transmissions (MT), two-shift automatic variable speed device (AT) and two grades of automatic mechanical transmissions (AMT).
The speed ratio of single reduction gear is definite value, causes the max. climb slope of electric motor car, highest speed and motor working efficiency to mate and is difficult to meet simultaneously; Two grades of manual transmission input ends need add manned clutch; The two-shift automatic variable speed device being similar to traditional automatic transmission needs the part such as oil pump, clutch, has both increased assembly size and weight, and processing technology is complicated, amount of parts is many, turn increases cost; And two grades of automatic mechanical transmissions also exist power interruption in shift process, affect the defect of travelling comfort.
Model utility content
The technical problems to be solved in the utility model overcomes the deficiencies in the prior art, there is provided a kind of structure simple, reliable performance, with low cost, transmission efficiency is high, stable movement, shock resistance, energy-saving safety and Gear Planet Transmission two-shift automatic variable speed device easy to utilize.
For solving the problem, the utility model by the following technical solutions:
A kind of Gear Planet Transmission two-shift automatic variable speed of the utility model device, comprise sun gear, double-planetary gear, planet carrier, gear ring, belt brake hoop, lock ring, described planet carrier one end is provided with output shaft, the other end is provided with described double-planetary gear, a planet wheel in described double-planetary gear engages with sun gear, another planet wheel engages with gear ring, described sun gear is provided with input shaft, described planet carrier is provided with annular boss, lock ring is provided with between described gear ring outer surface and described annular boss internal surface, and the internal surface of described lock ring is fixedly connected with gear ring outer surface, a part for described lock ring outer surface contacts with described annular boss internal surface, another part is set with described belt brake hoop, one end of belt brake hoop is fixed end, be connected with mechanism housing, the other end is movable end, be connected with shift actuator.
A kind of Gear Planet Transmission two-shift automatic variable speed of the utility model device, described lock ring outer surface is evenly equipped with and outwardly sticks up relative to lock ring the spring sheet; Described lock ring is prepared by spring steel, adopts stamping process to form at lock ring outer surface and outwardly sticks up relative to it spring sheet.
A kind of Gear Planet Transmission two-shift automatic variable speed of the utility model device, described lock ring is evenly provided with and outwardly sticks up relative to it wedge-shaped blocks; Described wedge-shaped blocks one end is arranged on described lock ring, and outwardly sticking up relative to lock ring the one end is outer end, is provided with spring and realizes elasticity and locate between described wedge-shaped blocks outer end and lock ring outer surface.
A kind of Gear Planet Transmission two-shift automatic variable speed of the utility model device, one end of described wedge-shaped blocks is arranged on described lock ring by setting-in or hinged mode.
A kind of Gear Planet Transmission two-shift automatic variable speed of the utility model device, belt brake hoop is circular snap ring, its movable end makes belt brake hoop radius-zoom-out at shift actuator move under influence, or after removing shift actuator effect, make belt brake hoop radius increase to relaxed state.
A kind of Gear Planet Transmission two-shift automatic variable speed of the utility model device, when described belt brake hoop is in relaxed state, the annular boss internal surface close contact that the spring sheet that described lock ring is arranged or wedge-shaped blocks and planet carrier are arranged.
A kind of Gear Planet Transmission two-shift automatic variable speed of the utility model device, described shift actuator is a kind of executive component in oil hydraulic cylinder, motor, solenoid valve or the hand of operator.
Belt brake hoop one end of Gear Planet Transmission two-shift automatic variable speed device described in the utility model is fixed on the housing of transmission case, the other end is movable end, is connected with shift actuator, when shift actuator action, movable end is pulled, and makes reduced or the increase of belt brake hoop.
Gear Planet Transmission two-shift automatic variable speed device described in the utility model by the compression of belt brake hoop with unclamp, realize gearshift.When brake hoop radius-zoom-out under the effect of outside final controlling element, the spring sheet that brake hoop internal surface compact lock stop ring outer surface is arranged or elastic wedge block, the radius D of lock ring is reduced, lock ring is separated with the inner ring of planet carrier, realize being separated of gear ring and planet carrier inner ring, now, lock ring and gear ring stop the rotation, sun gear is rotated by double-planetary gear Direct driver planet carrier, realizes gearing down.When belt brake hoop unclamp diameter become large time, belt brake hoop unclamps lock ring, under the effect of elastic force, the radius D of lock ring increases, and the spring sheet that lock ring is arranged or elastic wedge block are pressed on the annular boss internal surface that planet carrier is arranged, now, lock ring, gear ring and planet carrier are connected as a single entity, sun gear drives the synchronized rotation of planet carrier, i.e. direct-drive by double-planetary gear, gear ring, thus transmission case changes to second gear from one grade.Special proposition, the spring sheet that lock ring is arranged or elastic wedge block are pressed on planet carrier inner ring, and the direction of the two friction will make to form friction self-locking each other, are formed and connect reliably.
Gear Planet Transmission two-shift automatic variable speed device described in the utility model is provided with self-shifting control module, control module inspection vehicle wheel speed and motor speed, when the speed of a motor vehicle reaches certain setting value, control module sends instruction, final controlling element action, tighten up or decontrol brake hoop, reduce or increase the radius of lock ring, make lock ring and planet carrier realize being separated or contacting, thus make gear ring or be fixed on gear box casing, or realize being connected with planet carrier, realize gearshift.
Described Gear Planet Transmission two-shift automatic variable speed device, by regulating the gear ratio of duplicate gear in planetary system, makes the excursion of the more single single planetary velocity ratio of the velocity ratio of speed changer much larger.
Compared with prior art, the utility model advantage is:
Described Gear Planet Transmission two-shift automatic variable speed device, due to the Engage and disengage adopting lock ring, brake hoop realizes gear ring and planet carrier, can omit clutch, synchronizer and gearshift, become complete notional automatic speed changing.
Described Gear Planet Transmission two-shift automatic variable speed device only needs a set of planet row, a lock ring, a brake hoop, and number of spare parts is few, and structure is simple, and volume is little, and quality is light.
Described Gear Planet Transmission two-shift automatic variable speed device when not changing sun gear and gear ring, by changing the gear ratio of two planet wheels, can change the velocity ratio of system, expands the application area of transmission case.
Described Gear Planet Transmission two-shift automatic variable speed device by the compression of brake hoop with unclamp, reach the effect of gearshift, fast response time; And compressed by brake hoop or unclamp, control locking or the unblock of lock ring and gear ring, stable movement, nothing are impacted.
Accompanying drawing illustrates:
The following drawings only does schematic view and explanation to the utility model, is a kind of embodiment of model utility, does not limit scope of the present utility model.
Accompanying drawing 1 is Gear Planet Transmission two-shift automatic variable speed device structural principle sketch of the present utility model.
Accompanying drawing 2 is Gear Planet Transmission two-shift automatic variable speed device of the present utility model assembling perspective view.
Accompanying drawing 3 is lock ring structural representations in the utility model.
Accompanying drawing 4 is lock ring structural representations in the utility model embodiment 1.
Accompanying drawing 5 is lock ring structural representations in the utility model embodiment 2.。
Accompanying drawing 6 is belt brake hoop structural representations in the utility model.
Drawing reference numeral illustrates:
1: input shaft; 21: sun gear; 22: planet carrier; 23: gear ring; 24: compound planet gear;
3: belt brake hoop; 4: lock ring; 41: lock ring spring sheet; 42: wedge-shaped blocks;
43: spring; 5: output shaft;
embodiment:
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Embodiment 1
See accompanying drawing 1, 2, 3, 4, 6, a kind of Gear Planet Transmission two-shift automatic variable speed of the utility model device, comprise sun gear 21, double-planetary gear 24, planet carrier 22, gear ring 23, belt brake hoop 3, lock ring 4, described planet carrier 22 one end is provided with output shaft 5, the other end is provided with described double-planetary gear 24, a planet wheel in described double-planetary gear 24 engages with sun gear 21, another planet wheel engages with gear ring 23, described sun gear 21 is provided with input shaft 1, described planet carrier 22 is provided with annular boss 221, lock ring 4 is provided with between described gear ring 23 outer surface and described annular boss 221 internal surface, and the internal surface of described lock ring 4 is fixedly connected with gear ring 23 outer surface, a part for described lock ring 4 outer surface contacts with described annular boss 221 internal surface, another part is set with described belt brake hoop 3, one end of belt brake hoop 3 is fixed end, be connected with mechanism housing, the other end is movable end, be connected with shift actuator,
Described lock ring 4 outer surface is evenly equipped with and outwardly sticks up relative to lock ring 4 spring sheet 41; Described lock ring 4 is prepared by spring steel, and spring sheet 41 adopts stamping process shaping;
Described belt brake hoop 3 is circular snap ring, and its movable end is at shift actuator move under influence, and after making brake hoop 3 radius-zoom-out or removing final controlling element effect, diameter becomes large, realizes holding lock ring 4 tightly or unclamping lock ring 4; Belt brake hoop 3, when removing final controlling element effect, compresses and the annular boss 221 internal surface close contact that arranges on planet carrier 22 by the spring sheet 41 that described lock ring 4 is arranged;
Embodiment 2
See accompanying drawing 1,2,3,5,6, a kind of Gear Planet Transmission two-shift automatic variable speed of the utility model device, the present embodiment 2 is all identical with other parts of embodiment 1, and difference is only:
Described lock ring 4 is evenly hinged with and outwardly sticks up wedge-shaped blocks 42 relative to it; Described wedge-shaped blocks 42 is inlaid on lock ring 4, wedge-shaped blocks 42 can be made to be pressed in annular boss 221 internal surface of planet carrier 22, be similar to traditional overrunning clutch by spring 43.
Described belt brake hoop 3 is circular snap ring, its movable end is at shift actuator move under influence, make brake hoop 3 radius-zoom-out or after removing shift actuator effect, make belt brake hoop radius increase to relaxed state, realize holding lock ring 4 tightly or unclamping lock ring 4.
The utility model Gear Planet Transmission two-shift automatic variable speed device, is inputted through sun gear 21 by input shaft 1, after double-planetary gear 24, exports to output shaft 5 through planet carrier 22.Compressed by brake hoop 3 or unclamp lock ring 4, carrying out being separated or combining of control lines carrier 22 and gear ring 23, form two kinds of different operating states, thus reach different gears.
In the present embodiment 2, the wedge-shaped blocks 42 of lock ring 4 keeps attitude and reset itself by spring 43.When brake hoop 3 is performed the tension of device, when radius reduces, wedge-shaped blocks 42 outer end is separated with annular boss 221 internal surface of planet carrier 22; Unclamp when brake hoop 3 is performed device, when radius increases, the annular boss 221 internal surface close contact of wedge-shaped blocks 42 outer end and planet carrier 22, and when rotating along a direction, wedge-shaped blocks 42 can form friction self-locking with the friction of annular boss 221 internal surface of planet carrier 22, is formed and connects reliably.
The people of related domain is appreciated that final controlling element can be oil hydraulic cylinder, motor, solenoid valve or artificial direct control etc. perform.
The present embodiment serves as " example, example and explanation ", should not be construed as optimum or has more the technological scheme of advantage.
Claims (9)
1. a Gear Planet Transmission two-shift automatic variable speed device, comprise sun gear, double-planetary gear, planet carrier, gear ring, belt brake hoop, lock ring, described planet carrier one end is provided with output shaft, the other end is provided with described double-planetary gear, a planet wheel in described double-planetary gear engages with sun gear, another planet wheel engages with gear ring, described sun gear is provided with input shaft, it is characterized in that: described planet carrier is provided with annular boss, lock ring is provided with between described gear ring outer surface and described annular boss internal surface, and the internal surface of described lock ring is fixedly connected with gear ring outer surface, a part for described lock ring outer surface contacts with described annular boss internal surface, another part is set with described belt brake hoop, one end of belt brake hoop is fixed end, be connected with mechanism housing, the other end is movable end, be connected with shift actuator.
2. a kind of Gear Planet Transmission two-shift automatic variable speed device according to claim 1, is characterized in that: described lock ring outer surface is evenly equipped with and outwardly sticks up relative to lock ring the spring sheet.
3. a kind of Gear Planet Transmission two-shift automatic variable speed device according to claim 2, is characterized in that: described lock ring is prepared by spring steel, adopts stamping process to form at lock ring outer surface and outwardly sticks up relative to it spring sheet.
4. a kind of Gear Planet Transmission two-shift automatic variable speed device according to claim 1, is characterized in that: described lock ring is evenly provided with and outwardly sticks up relative to it wedge-shaped blocks.
5. a kind of Gear Planet Transmission two-shift automatic variable speed device according to claim 4, it is characterized in that: described wedge-shaped blocks one end is arranged on described lock ring, outwardly sticking up relative to lock ring the one end is outer end, is provided with spring and realizes elasticity and locate between described wedge-shaped blocks outer end and lock ring outer surface.
6. a kind of Gear Planet Transmission two-shift automatic variable speed device according to claim 5, is characterized in that: one end of described wedge-shaped blocks is arranged on described lock ring by setting-in or hinged mode.
7. a kind of Gear Planet Transmission two-shift automatic variable speed device according to claim 1-6 any one, it is characterized in that: belt brake hoop is circular snap ring, its movable end makes belt brake hoop radius-zoom-out at shift actuator move under influence, or after removing shift actuator effect, make belt brake hoop radius increase to relaxed state.
8. a kind of Gear Planet Transmission two-shift automatic variable speed device according to claim 7, it is characterized in that: when described belt brake hoop is in relaxed state, the annular boss internal surface close contact that the spring sheet that described lock ring is arranged or wedge-shaped blocks and planet carrier are arranged.
9. a kind of Gear Planet Transmission two-shift automatic variable speed device according to claim 8, is characterized in that: described shift actuator is a kind of executive component in oil hydraulic cylinder, motor, solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420773620.4U CN204387228U (en) | 2014-12-10 | 2014-12-10 | A kind of Gear Planet Transmission two-shift automatic variable speed device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420773620.4U CN204387228U (en) | 2014-12-10 | 2014-12-10 | A kind of Gear Planet Transmission two-shift automatic variable speed device |
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| Publication Number | Publication Date |
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| CN204387228U true CN204387228U (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420773620.4U Active CN204387228U (en) | 2014-12-10 | 2014-12-10 | A kind of Gear Planet Transmission two-shift automatic variable speed device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482139A (en) * | 2014-12-10 | 2015-04-01 | 长丰集团有限责任公司 | Planetary-drive two-gear automatic transmission |
| WO2021073184A1 (en) * | 2019-10-14 | 2021-04-22 | 舍弗勒技术股份两合公司 | Two-gear variable-speed bridge driving system without driving force interruption |
-
2014
- 2014-12-10 CN CN201420773620.4U patent/CN204387228U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482139A (en) * | 2014-12-10 | 2015-04-01 | 长丰集团有限责任公司 | Planetary-drive two-gear automatic transmission |
| WO2021073184A1 (en) * | 2019-10-14 | 2021-04-22 | 舍弗勒技术股份两合公司 | Two-gear variable-speed bridge driving system without driving force interruption |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |