CN102691759A - Tractor differential planetary speed-regulating mechanism allowing for infinitely variable speeds - Google Patents
Tractor differential planetary speed-regulating mechanism allowing for infinitely variable speeds Download PDFInfo
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- CN102691759A CN102691759A CN2012101759091A CN201210175909A CN102691759A CN 102691759 A CN102691759 A CN 102691759A CN 2012101759091 A CN2012101759091 A CN 2012101759091A CN 201210175909 A CN201210175909 A CN 201210175909A CN 102691759 A CN102691759 A CN 102691759A
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Abstract
A tractor differential planetary speed-regulating mechanism allowing for infinitely variable speeds comprises a mechanical input shaft, a gear ring output hollow shaft, three bearings, a casing, a gear ring connecting disk, two planet carriers, two planet gears, two gear rings, two planet gear shafts, a planet carrier output hollow shaft and a hydraulic input shaft. The gear ring output hollow shaft is sleeved on the bearings which are fixedly mounted on the casing. The gear ring connecting disk is sleeved on the gear ring output hollow shaft through splines and is connected with the gear rings through bolts. The mechanical input shaft is nested into the gear ring output hollow shaft and is connected with the planet carriers through splines. The two planet gear shafts are mounted on the two planet carriers respectively. One planet gear is connected with one gear ring. The planet carrier output hollow shaft is sleeved on the bearings. The hydraulic input shaft is nested into the planet carrier output hollow shaft. Two sun gears on the hydraulic input shaft are meshed with the two planet gears respectively.
Description
Technical field
The invention belongs to the tractor field, relate to a kind of tractor speed regulating mechanism, relate in particular to a kind of infinite variable speed tractor differential planetary speed regulating mechanism of realizing.
Background technique
At present, the large power wheel tractor of domestic production generally adopts engagement cover or synchronizer gearshift step type gearbox, and its operating speed can only be adjusted through engine speed.Therefore, tractor is difficult to take into account and both can obtains the desirable operating rate of various farmland operations, can make full use of engine power again and make it in best operating point work.Stepless change (CVT) then can reach this requirement, thereby can raise the efficiency, and is energy-saving and cost-reducing.The present American-European CVT of developed country tractor technology is ripe, and the tractor product of being produced is received by the market.What we were developing realizes that infinite variable speed tractor differential planetary speed regulating mechanism is exactly a kind of of CVT, can develop the stepless speed changing tractor that is fit to China's national situation, improves the scientific and technological content of China's tractor product, accelerates to realize agricultural modernization.
Summary of the invention
The object of the present invention is to provide and a kind ofly be applied to infinite variable speed tractor and can realize infinite variable speed tractor differential planetary speed regulating mechanism.
Technological scheme of the present invention is: can realize infinite variable speed tractor differential planetary speed regulating mechanism, comprise: mechanical input shaft, gear ring output hollow shaft, clutch shaft bearing, housing, gear ring land, first planet carrier, first planetary pinion, first gear ring, planet wheel shaft, second planetary pinion, second planet carrier, second gear ring, second bearing, the 3rd bearing, planet carrier output hollow shaft, hydraulic pressure input shaft; The gear ring output hollow shaft is sleeved on the clutch shaft bearing, and clutch shaft bearing is fixedly mounted on the housing, and the gear ring land passes through spline package on the gear ring output hollow shaft; And link together through bolt and gear ring, mechanical input shaft is sleeved in the gear ring output hollow shaft, is connected with first planet carrier through spline; Two planet wheel shafts are installed in respectively on first planet carrier and second planet carrier; First planetary pinion is installed on the planet wheel shaft through needle bearing, and first planet carrier is connected through second gear ring of spline with another planet row, and second gear ring is sleeved on second bearing; Second bearing, planet carrier back-up ring are installed on second planet carrier; The 3rd bearing fixing is installed on the housing, and the planet carrier output hollow shaft is sleeved on the 3rd bearing, and the hydraulic pressure input shaft is sleeved in the planet carrier output hollow shaft; Two sun gears on the hydraulic pressure input shaft are meshed with first planetary pinion and second planetary pinion respectively, and second planetary pinion is sleeved on the planet wheel shaft through needle bearing.
Described gear ring land one end withstands on the bearing, and the other end is locked through locking nut and is connected on the gear ring output hollow shaft.
Be set with needle bearing on the described planet wheel shaft, two thinner termination portions of planet wheel shaft and first planet carrier, the second planet carrier exterior edge face intersection are set with back-up ring.
Described two pairs of friction rings are set in end, both sides on first planetary pinion, second planetary pinion.
The present invention can reach following beneficial effect after adopting technique scheme: utilize this differential planetary speed regulating mechanism can develop stepless speed changing tractor; Can make tractor obtain desirable operating rate and also can make full use of engine power; Enhance productivity; Energy-saving and cost-reducing, electrodeless variable-speed tractor handiness simultaneously alleviates driver's labor intensity.
Description of drawings
Fig. 1 can realize the structural representation of infinite variable speed tractor differential planetary speed regulating mechanism for the present invention.
Embodiment
As shown in Figure 1; Can realize infinite variable speed tractor differential planetary speed regulating mechanism, mainly comprise: the little back-up ring of the big back-up ring of mechanical input shaft 1, gear ring output hollow shaft 2, clutch shaft bearing 3, housing 4, locking nut 5, gear ring land 6, bolt 7, back-up ring 8, first planet carrier 9, friction ring 10, first planetary pinion 11, needle bearing 12, first gear ring 13, planet wheel shaft 14, gear ring 15, second planetary pinion 16, second planet carrier 17, second gear ring 18, gear ring 19, second bearing 20, planet carrier back-up ring 21, the 3rd bearing 22, planet carrier output hollow shaft 23, hydraulic pressure input shaft 24; Gear ring output hollow shaft 2 is sleeved on the clutch shaft bearing 3, and clutch shaft bearing 3 is fixed on the housing 4, and gear ring land 6 passes through spline package on gear ring output hollow shaft 2; Gear ring land 6 one ends withstand on the clutch shaft bearing 3, and the other end is locked through locking nut 5 and is connected gear ring output hollow shaft 2, and gear ring land 6 links together through the bolt 7 and first gear ring 13; Machinery input shaft 1 is sleeved in the gear ring output hollow shaft 2, is connected with first planet carrier 9 through spline, and planet wheel shaft 14 is installed on first planet carrier 9; Back-up ring 8 is stuck in and plays the axial restraint effect on the planet wheel shaft 14, and needle bearing 12 is sleeved on the planet wheel shaft 14, and first planetary pinion 11 is installed on the planet wheel shaft 14 through needle bearing 12; Two friction rings 10 are sleeved on end, first planetary pinion, 11 both sides; First planet carrier 9 is connected through second gear ring 18 of spline with another planet row, and second gear ring 18 is sleeved on second bearing 20, and second bearing 20 is installed on second planet carrier 17; The little back-up ring 19 of gear ring is stuck on second gear ring 18; Planet carrier back-up ring 21 is stuck on second planet carrier 17, and second bearing 20 is between little back-up ring 19 of gear ring and planet carrier back-up ring 21, and the 3rd bearing 22 is fixedly mounted on the housing 4; Planet carrier output hollow shaft 23 is sleeved on the 3rd bearing 22; The 3rd bearing 22 left sides withstand on second planet carrier, 17 right sides, and hydraulic pressure input shaft 24 is sleeved in the planet carrier output hollow shaft 23, and two sun gears on the hydraulic pressure input shaft 24 are meshed with first planetary pinion 11 and second planetary pinion 16 respectively; Second planetary pinion 16 is sleeved on the planet wheel shaft 14 through needle bearing 12; Two friction rings 10 are sleeved on the planet wheel shaft 14 and are installed in second planetary pinion, 16 two end faces, and planet wheel shaft 14 is installed on second planet carrier 17, and back-up ring 8 is stuck in and plays the axial restraint effect on the planet wheel shaft 14.
The mechanical output that motor the transmits mechanical input shaft 1 of flowing through passes to first planet carrier, 9, the first planet carriers 9 and is connected with second gear ring 18 and has identical rotating speed, and the hydraulic power that oil hydraulic motor the transmits hydraulic pressure input shaft 24 of flowing through is delivered to the sun gear on it; Left side planet row is planet carrier input and sun gear input, and power flow concentration is after first gear ring 13 is exported, and first gear ring 13 is connected with gear ring land 6; Land 6 is connected with gear ring output hollow shaft 2; During left side planet row work, mechanical input shaft 1 rotating speed remains unchanged, and hydraulic pressure input shaft 24 is through after the oil hydraulic motor speed governing; The linear stepless variation of its rotating speed; After planet row is confluxed, the also linear stepless variation of output hollow shaft 2 rotating speeds, thus realized function of stepless speed regulation.In like manner, planet row in right side is gear ring input and sun gear input, and power flow concentration is after 17 outputs of second planet carrier; Second planet carrier 17 is connected with planet carrier output hollow shaft 23, and during the planet row work of right side, second gear ring 18 is connected with mechanical input shaft 1; Second gear ring, 18 rotating speeds remain unchanged; Hydraulic pressure input shaft 24 is through after the oil hydraulic motor speed governing, and the linear stepless variation of its rotating speed is after planet row is confluxed; The also linear stepless variation of planet carrier output hollow shaft 23 rotating speeds, thus realized function of stepless speed regulation.
Claims (4)
1. can realize infinite variable speed tractor differential planetary speed regulating mechanism, comprise: mechanical input shaft (1), gear ring output hollow shaft (2), clutch shaft bearing (3), housing (4), gear ring land (6), first planet carrier (9), first planetary pinion (11), first gear ring (13), planet wheel shaft (14), second planetary pinion (16), second planet carrier (17), second gear ring (18), second bearing (20), the 3rd bearing (22), planet carrier output hollow shaft (23), hydraulic pressure input shaft (24); It is characterized in that: gear ring output hollow shaft (2) is sleeved on the clutch shaft bearing (3); Clutch shaft bearing (3) is fixedly mounted on the housing (4); Gear ring land (6) passes through spline package on gear ring output hollow shaft (2); And link together through bolt (7) and gear ring (13), mechanical input shaft (1) is sleeved in the gear ring output hollow shaft (2), is connected with first planet carrier (9) through spline; Two planet wheel shafts (14) are installed in respectively on first planet carrier (9) and second planet carrier (17); First planetary pinion (11) is installed on the planet wheel shaft (14) through needle bearing (12), and first planet carrier (9) is connected through second gear ring (18) of spline with another planet row, and second gear ring (18) is sleeved on second bearing (20); Second bearing (20), planet carrier back-up ring (21) are installed on second planet carrier (17); The 3rd bearing (22) is fixedly mounted on the housing (4), and planet carrier output hollow shaft (23) is sleeved on the 3rd bearing (22), and hydraulic pressure input shaft (24) is sleeved in the planet carrier output hollow shaft (23); Two sun gears on the hydraulic pressure input shaft (24) are meshed with first planetary pinion (11) and second planetary pinion (16) respectively, and second planetary pinion (16) is sleeved on the planet wheel shaft (14) through needle bearing (12).
2. according to claim 1ly realize infinite variable speed tractor differential planetary speed regulating mechanism; It is characterized in that: gear ring land (6) one ends withstand on the bearing (3), and the other end is locked through locking nut (5) and is connected on the gear ring output hollow shaft (2).
3. according to claim 1ly realize infinite variable speed tractor differential planetary speed regulating mechanism; It is characterized in that: be set with needle bearing (12) on the planet wheel shaft (14), thinner termination portion of two planet wheel shafts (14) and first planet carrier (9), second planet carrier (17) exterior edge face intersection are set with back-up ring (8).
4. according to claim 1ly realize infinite variable speed tractor differential planetary speed regulating mechanism, it is characterized in that: first planetary pinion (11), second planetary pinion (16) are gone up end face place, both sides and are set with friction ring (10) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101759091A CN102691759A (en) | 2012-05-31 | 2012-05-31 | Tractor differential planetary speed-regulating mechanism allowing for infinitely variable speeds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101759091A CN102691759A (en) | 2012-05-31 | 2012-05-31 | Tractor differential planetary speed-regulating mechanism allowing for infinitely variable speeds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102691759A true CN102691759A (en) | 2012-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101759091A Pending CN102691759A (en) | 2012-05-31 | 2012-05-31 | Tractor differential planetary speed-regulating mechanism allowing for infinitely variable speeds |
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| Country | Link |
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| CN (1) | CN102691759A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758950A (en) * | 2014-02-09 | 2014-04-30 | 北京阳铭诚科技有限责任公司 | Continuously variable transmission of electric vehicle |
| WO2020168910A1 (en) * | 2019-02-21 | 2020-08-27 | 威海团中变速器有限公司 | Continuously variable transmission |
| CN113586677A (en) * | 2021-08-31 | 2021-11-02 | 瞿庆涛 | Two-gear speed change mechanism |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2606219Y (en) * | 2003-03-13 | 2004-03-10 | 桑恭 | Hydrostatic transmission of nonpolarized speed variable tractor |
| DE102010003944A1 (en) * | 2010-04-14 | 2011-12-01 | Zf Friedrichshafen Ag | Transmission device for drive train of tractor, has two planetary gear devices coaxial arranged to each other, and manual transmission formed with one of planetary gear devices to represent translation regions |
| CN102359567A (en) * | 2011-10-13 | 2012-02-22 | 南京农业大学 | Full-automatic continuously variable transmission of tractor |
| CN202646560U (en) * | 2012-05-31 | 2013-01-02 | 洛阳拖拉机研究所有限公司 | Tractor differential planet speed governing mechanism capable of achieving infinite variable speed |
-
2012
- 2012-05-31 CN CN2012101759091A patent/CN102691759A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2606219Y (en) * | 2003-03-13 | 2004-03-10 | 桑恭 | Hydrostatic transmission of nonpolarized speed variable tractor |
| DE102010003944A1 (en) * | 2010-04-14 | 2011-12-01 | Zf Friedrichshafen Ag | Transmission device for drive train of tractor, has two planetary gear devices coaxial arranged to each other, and manual transmission formed with one of planetary gear devices to represent translation regions |
| CN102359567A (en) * | 2011-10-13 | 2012-02-22 | 南京农业大学 | Full-automatic continuously variable transmission of tractor |
| CN202646560U (en) * | 2012-05-31 | 2013-01-02 | 洛阳拖拉机研究所有限公司 | Tractor differential planet speed governing mechanism capable of achieving infinite variable speed |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758950A (en) * | 2014-02-09 | 2014-04-30 | 北京阳铭诚科技有限责任公司 | Continuously variable transmission of electric vehicle |
| CN103758950B (en) * | 2014-02-09 | 2016-05-04 | 北京阳铭诚科技有限责任公司 | Electric motor car buncher |
| WO2020168910A1 (en) * | 2019-02-21 | 2020-08-27 | 威海团中变速器有限公司 | Continuously variable transmission |
| CN113586677A (en) * | 2021-08-31 | 2021-11-02 | 瞿庆涛 | Two-gear speed change mechanism |
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Application publication date: 20120926 |