CN202338582U - Planetary clutch reversing mechanism in automobile transmission system - Google Patents
Planetary clutch reversing mechanism in automobile transmission system Download PDFInfo
- Publication number
- CN202338582U CN202338582U CN2011205301971U CN201120530197U CN202338582U CN 202338582 U CN202338582 U CN 202338582U CN 2011205301971 U CN2011205301971 U CN 2011205301971U CN 201120530197 U CN201120530197 U CN 201120530197U CN 202338582 U CN202338582 U CN 202338582U
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- China
- Prior art keywords
- friction plate
- gear
- clutch
- forward gear
- external tooth
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Abstract
The utility model provides a planetary clutch reversing mechanism in an automobile transmission system. The planetary clutch reversing mechanism comprises a sun wheel welding piece, a planetary retainer welding piece, four planetary wheels and a clutch, wherein the clutch comprises a forward gear friction plate group and a reverse gear clutch friction plate group; the forward gear friction plate group comprises a forward gear internal tooth friction plate and a forward gear external tooth friction plate; the reverse gear clutch friction plate group comprises a reverse gear internal tooth friction plate and a reverse gear external tooth friction plate; the diameter of the forward gear internal tooth friction plate is the same as that of the reverse gear internal tooth friction plate; and the diameter of the forward gear external tooth friction plate is the same as that of the reverse gear external tooth friction plate. The planetary clutch reversing mechanism in the automobile transmission system provided by the utility model has low manufacturing cost; and on the other hand, the size of the reverse gear clutch friction plate group is reduced to be consistent with that of the forward gear friction plate group, so that idling power consumption is lowered, and the transfer efficiency loss is reduced to the maximum extent.
Description
Technical field
The utility model relates to a kind of car transmissions, particularly relates to the planetary clutch changement in a kind of car transmissions.
Background technique
Motor car engine can only provide the rotation of a direction, so a cover switching-over mechanism must be set in the gearbox of car transmissions, realizes the function of forward transmission, reversing drive and neutral.Planetary clutch changement in the common car transmissions comprises sun gear soldering member, planet retainer soldering member, four planet wheels and clutch.Wherein four planet wheels are uniformly distributed on the circumference between gear ring and the sun gear soldering member.The sun gear soldering member is connected with stepless speed variator driving pulley axle through internal spline.Clutch comprises forward gear friction plate group and reverses gear the clutch friction plate group.Forward gear friction plate group comprises forward gear internal toothed friction plate and forward gear external tooth friction plate.The clutch friction plate group of reversing gear comprises the reverse gear internal toothed friction plate and the external tooth friction plate that reverses gear.Be generally the mobility that guarantees that automobile reverses gear and goes; The size of the clutch friction plate group of reversing gear is greater than the size of forward gear friction plate group; Because under cruising, the clutch friction plate group of reversing gear is in long idling conditions, form bigger transmission efficiency loss thus; The entire mechanism fuel consumption is bigger, and the part processing cost is higher.
The model utility content
The purpose of the utility model provides a kind of low cost of manufacture, transmission efficiency is lost the planetary clutch changement in the less car transmissions.
Planetary clutch changement in the car transmissions of the utility model; Comprise sun gear soldering member, planet retainer soldering member, four planet wheels and clutch; Said clutch comprises forward gear friction plate group and reverses gear the clutch friction plate group; Said forward gear friction plate group comprises forward gear internal toothed friction plate and forward gear external tooth friction plate; The said clutch friction plate group of reversing gear comprises the reverse gear internal toothed friction plate and the external tooth friction plate that reverses gear, and the diameter of said forward gear internal toothed friction plate is identical with the diameter of the said internal toothed friction plate that reverses gear, and the diameter of said forward gear external tooth friction plate is identical with the diameter of the said external tooth friction plate that reverses gear.
Planetary clutch changement in the car transmissions of the utility model, wherein, said forward gear internal toothed friction plate be a plurality of with the said internal toothed friction plate that reverses gear, the quantity of said forward gear internal toothed friction plate is identical with the quantity of the said internal toothed friction plate that reverses gear.
Planetary clutch changement in the car transmissions of the utility model, wherein, said forward gear external tooth friction plate and the said external tooth friction plate that reverses gear are a plurality of, and the quantity of said forward gear external tooth friction plate is identical with the quantity of the said external tooth friction plate that reverses gear
The diameter that advances to keep off internal toothed friction plate in the planetary clutch changement in the car transmissions of the utility model is identical with the diameter of the internal toothed friction plate that reverses gear, and the diameter of forward gear external tooth friction plate is identical with the diameter of the external tooth friction plate that reverses gear, low cost of manufacture; The dimension shrinks of the clutch friction plate group of will reversing gear on the other hand arrives the consistent size with forward gear friction plate group, has reduced idle running consumption oil, has reduced the transmission efficiency loss to greatest extent.
Description of drawings
Fig. 1 is the structural representation of the planetary clutch changement in the car transmissions of the utility model;
Fig. 2 is the assembling schematic representation of clutch among Fig. 1.
Embodiment
Like Fig. 1, shown in Figure 2, the planetary clutch changement in the car transmissions of the utility model comprises sun gear soldering member 2, planet retainer soldering member 13, four planet wheels 9 and clutches 30.Wherein four planet wheels are uniformly distributed on the circumference between gear ring 8 and the sun gear soldering member 2.Sun gear soldering member 2 is connected with stepless speed variator driving pulley axle 18 through internal spline.Clutch 30 comprises forward gear friction plate group 6 and reverses gear clutch friction plate group 10.Forward gear friction plate group 6 comprises forward gear internal toothed friction plate 61 and forward gear external tooth friction plate 62.The clutch friction plate group 10 of reversing gear comprises the reverse gear internal toothed friction plate 101 and the external tooth friction plate 102 that reverses gear.
The diameter of forward gear internal toothed friction plate 61 is identical with the diameter of the internal toothed friction plate 101 that reverses gear, and the diameter of forward gear external tooth friction plate 62 is identical with the diameter of the external tooth friction plate 102 that reverses gear.
Forward gear internal toothed friction plate 61 be a plurality of with the internal toothed friction plate 101 that reverses gear, the quantity of forward gear internal toothed friction plate 61 is identical with the quantity of the internal toothed friction plate 101 that reverses gear.
The forward gear external tooth friction plate 62 and the external tooth friction plate 102 that reverses gear are a plurality of, and the quantity of forward gear external tooth friction plate 62 is identical with the quantity of the external tooth friction plate 102 that reverses gear.
Sun gear soldering member 2 is connected with the forward gear internal toothed friction plate 61 of forward gear friction plate group 6, and the forward gear external tooth friction plate 62 of forward gear friction plate group 6 is fixedly connected with forward gear clutch retainer soldering member 5.Forward gear clutch retainer soldering member 5 is fixed together with input shaft 15 and gear ring 8.Planet retainer soldering member 13 is connected with the internal toothed friction plate 101 that reverses gear of the clutch friction plate group 10 of reversing gear, and the external tooth friction plate 102 that reverses gear of the clutch friction plate group 10 of reversing gear is fixedly connected with the housing 17 of stepless speed variator.
One, the planetary clutch changement in the car transmissions of the utility model is in the working state of forward gear
Oil flows into the forward gear oil cylinder along oil duct; Oil pressure rises rapidly in the forward gear oil cylinder, and forward gear piston 3 is pushed to the right under the effect of oil pressure gradually; Forward gear friction plate group 6 and clutch steel disc 7 are compressed; Because the forward gear internal toothed friction plate 61 of forward gear friction plate group 6 is fixed together through spline and sun gear soldering member 2, so sun gear soldering member 2 will rotate with forward gear friction plate group 6 synchronously.
When the forward gear oil cylinder was oil-filled, the in-oil cylinder oil that reverses gear then was released, and oil pressure reduces rapidly in the oil cylinder that reverses gear; The oil pressure that acts on the piston 11 that reverses gear also disappears thereupon, and piston 11 beginnings of reversing gear move right gradually, at this moment; Second return spring 12 no longer receives the extruding of the piston 11 that reverses gear; Receive its flexible influence, return to original position rapidly, so; The clutch friction plate group 10 of reversing gear becomes loosening state by pressing state, and the planet retainer soldering member 13 that combines with it is in the state of not stressing.
Be under the state that runs up at input shaft 15 and forward gear clutch retainer soldering member 5; Because the forward gear internal toothed friction plate that combines through spline with sun gear soldering member 2 61 is compacted and gear ring 8 rotatablely moves synchronously, and while planet retainer soldering member 13 is in the state that does not stress; So; Gear ring 8 is when rotating along with input shaft 15, and planet retainer soldering member 13 combines with sun gear soldering member 2 as a wholely to move in the same way, thereby realizes the forward gear function.
The rigid body that whole changement is equivalent to rotate, because not quite motion, so the mechanical efficiency of changement is the highest.
Two, the working state of reversing gear of the planetary clutch changement in the car transmissions of the utility model
Oil flows into the oil cylinder that reverses gear along oil duct; The interior oil pressure of the oil cylinder that reverses gear rises rapidly, reverses gear piston 11 under the effect of oil pressure, is pushed to left gradually; The clutch friction plate group 10 of will reversing gear compresses; The internal toothed friction plate 101 of clutch friction plate group 10 mutually combines through spline and planet retainer soldering member 13 owing to reverse gear, and when the clutch friction plate group 10 of reversing gear is compacted can not be rotated motion the time, the while that rotatablely moves also of planet retainer soldering member 13 is by locking.
When the oil cylinder that reverses gear was oil-filled, the in-oil cylinder oil of forward gear then was released, and oil pressure reduces rapidly in the forward gear oil cylinder; The oil pressure that acts on the forward gear piston 3 also disappears thereupon, and forward gear piston 3 begins direction motion left, and this moment, first return spring 4 no longer received the extruding of forward gear piston 3; Receive its flexible influence, return to original position rapidly, so; Forward gear friction plate group 6 becomes loosening state by pressing state, and the sun gear soldering member 2 that combines with it is in the state that does not stress.
Be under the rotation status through spline and forward gear clutch retainer soldering member 5 at input shaft 15, owing to planet retainer soldering member 13 can not be turned round by locking, and sun gear soldering member 2 is in the state that does not stress; So gear ring 8 is along with input shaft 15 rotations the time, planetary pinion 9 rotates; Give sun gear in the sun gear soldering member 2 with transmission of power; But because the effect of planetary pinion 9, gear ring 8 be rotated in the forward the counterrotating campaign that motion will convert above-mentioned sun gear into, thereby realization is reversed gear.
Three, the planetary clutch changement in the car transmissions of the utility model is in the working state of neutral
When the forward gear oil cylinder and the oil of oil cylinder in it that reverses gear are discharged; The forward gear oil cylinder all will reduce rapidly with the in-oil cylinder oil pressure that reverses gear; The oil pressure that acts on the forward gear piston 4 and the piston 11 that reverses gear also disappears thereupon; As previously mentioned, consequent result makes planet retainer soldering member 13 and sun gear soldering member 2 be in the state that does not stress, therefore can't transmitting torque.
Because above-mentioned sun gear is bearing the large drag forces of stepless speed variator driving pulley axle 18, and planet retainer soldering member 13 do not stress, therefore; When gear ring 8 runs up along with input shaft 15; Above-mentioned sun gear can not rotate, and planet wheel 9 rotates round above-mentioned sun gear, thereby realizes neutral.
The diameter that advances to keep off internal toothed friction plate in the planetary clutch changement in the car transmissions of the utility model is identical with the diameter of the internal toothed friction plate that reverses gear; The diameter of forward gear external tooth friction plate is identical with the diameter of the external tooth friction plate that reverses gear, and has saved great amount of cost during manufacturing; The dimension shrinks of the clutch friction plate group of will reversing gear on the other hand arrives the consistent size with forward gear friction plate group, has reduced idle running consumption oil, has reduced the transmission efficiency loss to greatest extent.
Planetary clutch changement compact structure in the car transmissions of the utility model operates steadily, and is easy to realize automatic control, and structural manufacturing process is simple, and manufacture cost is reduced, and operational reliability is improved, and has reduced mechanically operated loss in efficiency.
The above only is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (3)
1. the planetary clutch changement in the car transmissions; Comprise sun gear soldering member, planet retainer soldering member, four planet wheels and clutch; Said clutch comprises forward gear friction plate group and reverses gear the clutch friction plate group; Said forward gear friction plate group comprises forward gear internal toothed friction plate and forward gear external tooth friction plate, and the said clutch friction plate group of reversing gear comprises the reverse gear internal toothed friction plate and the external tooth friction plate that reverses gear, and it is characterized in that; The diameter of said forward gear internal toothed friction plate is identical with the diameter of the said internal toothed friction plate that reverses gear, and the diameter of said forward gear external tooth friction plate is identical with the diameter of the said external tooth friction plate that reverses gear.
2. the planetary clutch changement in the car transmissions according to claim 1; It is characterized in that; Said forward gear internal toothed friction plate be a plurality of with the said internal toothed friction plate that reverses gear, the quantity of said forward gear internal toothed friction plate is identical with the quantity of the said internal toothed friction plate that reverses gear.
3. the planetary clutch changement in the car transmissions according to claim 2; It is characterized in that; Said forward gear external tooth friction plate and the said external tooth friction plate that reverses gear are a plurality of, and the quantity of said forward gear external tooth friction plate is identical with the quantity of the said external tooth friction plate that reverses gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205301971U CN202338582U (en) | 2011-12-16 | 2011-12-16 | Planetary clutch reversing mechanism in automobile transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205301971U CN202338582U (en) | 2011-12-16 | 2011-12-16 | Planetary clutch reversing mechanism in automobile transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202338582U true CN202338582U (en) | 2012-07-18 |
Family
ID=46487274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205301971U Expired - Lifetime CN202338582U (en) | 2011-12-16 | 2011-12-16 | Planetary clutch reversing mechanism in automobile transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202338582U (en) |
-
2011
- 2011-12-16 CN CN2011205301971U patent/CN202338582U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120718 |
|
| CX01 | Expiry of patent term |