CN87201298U - Sleeving-shaft feedback type planetary differential-speed device - Google Patents
Sleeving-shaft feedback type planetary differential-speed device Download PDFInfo
- Publication number
- CN87201298U CN87201298U CN 87201298 CN87201298U CN87201298U CN 87201298 U CN87201298 U CN 87201298U CN 87201298 CN87201298 CN 87201298 CN 87201298 U CN87201298 U CN 87201298U CN 87201298 U CN87201298 U CN 87201298U
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- differential
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- planetary
- shaft
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- 241000270728 Alligator Species 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 3
- 241001347978 Major minor Species 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model discloses a sleeving-shaft feedback type planetary differential-speed device, which is an improved planetary differential-speed device. An output shaft is positioned on the same side of an input shaft, and is covered on a main input shaft. The utility model has characteristics of compact conformation and the uniform stress of fixing screws, and can be used on various cable hoists.
Description
The utility model belongs to planetary differential
Planetary differential is widely used on crane gear and the motor vehicle as speed-change gear box, compares with other forms of differential mechanism, has simple in structure, easily manufactured and low cost and other advantages.Present domestic planetary differential and foreign data with Dual-motors Driving are as the patent 4 of the U.S..423。644, the planetary differential that the patent 1146220A of the Soviet Union and D.B.P. 2921195 are introduced, its output shaft is positioned at the opposite side of input shaft, it is applied on the cable hoist, reel is positioned at an end of winch, makes whole winch structure compact inadequately, and support set screw unbalance stress.
The purpose of this utility model provides a kind of improved planetary differential, and its output shaft is made tubular, is enclosed within outward on the primary input axle, forms output shaft and input shaft the same side at differential mechanism.
Accompanying drawing 1 is a principle schematic of the present utility model.
Primary input axle 1, output shaft 2, second level planet carrier 3, duplex alligator 4, second level planetary pinion 5, the differential ring gear 6 in the second level, first order planet carrier 7, differential 8 of the first order, the differential ring gear 9 of the first order, the differential external toothing 10 of the first order, first order planetary pinion 11, first order central gear 12, middle driving gear 13, jack shaft 14, housing 15, middle driven gear 16, secondary input gear 17, secondary input shaft 18 among the figure.
Accompanying drawing 2 is the connection diagram between first and second grade planet device.
Primary input axle 1, duplex alligator 4, biserial is spherical bearing 20 entad, first order planet pin 21, first order planet carrier 7, first order planetary pinion 11, steel ball seat 22, steel ball 23, first order central gear 12, housing 15.
The utility model is made up of main transmission, auxiliary driving system, housing and bearing as shown in Figure 1. Main transmission is a two-stage planetary reducer, comprising: primary input axle 1, first order central gear 12, the differential ring gear 9 of the first order, first order planet carrier 7, duplex alligator 4, second level planetary gear 5, the second level differential ring gear 6, second level planet carrier 3 and output shaft 2. The primary input axle directly connects with first order sun gear shaft. The moment of torsion of first order planetary gear is to be delivered on the planetary gear of the second level by a hollow duplex alligator that is enclosed within on the primary input axle, hollow duplex alligator is actually alligator and an external gear of a jaw clutch and makes an integral body, the tooth cover of the jaw clutch on the former and the first order planet carrier links, and the latter is the central gear of second level planet device. The planet carrier of the second level and the tubular outer output shaft that is enclosed within on the power shaft join. The auxiliary driving system is a two-stage mechanical reduction gear, by secondary power shaft 18, and secondary input gear 17, middle driven gear 16, jackshaft 14, middle driving wheel 13, differential 8 of the first order and differential external toothing 10 form. The moment of torsion of secondary power shaft is given differential external toothing through the two-stage gear transmission, and differential ring gear is connected with differential external toothing, and last moment reaches output shaft through the two-stage planet device. Housing 15 is screwed by casing and case lid and forms. Support by bearing at the axle bearing place.
When the utility model is braked at secondary input shaft 18 (braking is carried out by the break on the motor), differential 8 middle driving wheel 13 engagements by its first order external toothing 10 and auxiliary driving system of the first order are braked, at this moment the rotation speed n of primary input axle 1 transmission output shaft 2 behind the two-stage planetary reduction gear, the rotating speed of output shaft can calculate according to the input speed and the number of teeth, supposes that its velocity ratio is i
1, then this moment output shaft rotation speed n
1=n/i
1, be that first order central gear 12 is braked when primary input axle 1 is braked, the rotation speed n of secondary input shaft 18 ' through the differential external toothing of auxiliary driving system transmission, behind the two-stage planetary reduction gear, transmission output shaft supposes that the velocity ratio of this moment is i again
2(can calculate), the then rotation speed n of output shaft 2 according to the number of teeth
2=n '/i
2, when the major-minor input shaft is imported n and n ' rotating speed, the at this moment rotation speed n of output shaft 2 simultaneously respectively
3=n/i
1+ n '/i
2, if the counter-rotating of secondary input shaft, the then rotation speed n of output shaft
4=n/i
1-n '/i
2, so the utility model can be by changing, major-minor input shaft working state reaches the purpose of speed change.
The utility model is loaded on the cable hoist more even more ideal than existing planetary differential mounting point, compact integral structure, and the space availability ratio height, the situation of support set screw unbalance stress is significantly improved.
In order to make the utility model noise low, the planet wheel effect of load balancing mechanism is good, reliable operation, first order planet device of the present utility model adopts planet carrier to float, second level planet device adopts central gear to float, the jaw clutch structure is adopted in the connection of inter-stage, and for increasing unsteady effect, it is circular-arc that tooth top vertically is.As shown in Figure 2, and at first order planetary carrier 7(Fig. 2, down together) be that tooth puts three uniform steel ball seat 22, in the seat steel ball 23 is housed, duplex alligator 4 is the ring-type arc groove with the steel ball contacting point, steel ball not only plays the axially locating effect of two couplings, also plays the effect of floating relatively between two couplings, avoids the phase mutual interference of two planet devices, increased effect of load balancing mechanism, this method is simple in structure, and is easy to process, reliable operation.
Claims (2)
1, a kind of planetary differential, by primary input axle 1, first order central gear 12, first order planetary pinion 11, first order planet carrier 7 links by duplex alligator 4 and second level planet carrier 3, output shaft 2, second level planetary pinion 5, secondary input shaft 18, differential 8 of the first order, differential external toothing 10 of the first order and the differential ring gear 9 of the first order fuse, and are meshed with middle driving gear 13, and bearing, casing are formed, feature of the present utility model is, output shaft 2 is tubular, is enclosed within outward on the primary input axle, and is positioned at the homonymy of two input shafts.
2, planetary differential according to claim 1 is characterized in that being equipped with on the first order planet carrier 7 three uniform steel ball seat 22, in the seat steel ball 23 is housed, and duplex alligator 4 is the ring-type arc groove with the steel ball contacting point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87201298 CN87201298U (en) | 1987-04-28 | 1987-04-28 | Sleeving-shaft feedback type planetary differential-speed device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87201298 CN87201298U (en) | 1987-04-28 | 1987-04-28 | Sleeving-shaft feedback type planetary differential-speed device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87201298U true CN87201298U (en) | 1988-04-20 |
Family
ID=4817612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87201298 Withdrawn CN87201298U (en) | 1987-04-28 | 1987-04-28 | Sleeving-shaft feedback type planetary differential-speed device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87201298U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102328885A (en) * | 2010-07-14 | 2012-01-25 | 四川宏华石油设备有限公司 | Two-speed planetary speed reducer device |
| CN108194515A (en) * | 2017-12-21 | 2018-06-22 | 南京航空航天大学 | Hub-bearing unit based on double reduction mechanism |
-
1987
- 1987-04-28 CN CN 87201298 patent/CN87201298U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102328885A (en) * | 2010-07-14 | 2012-01-25 | 四川宏华石油设备有限公司 | Two-speed planetary speed reducer device |
| CN108194515A (en) * | 2017-12-21 | 2018-06-22 | 南京航空航天大学 | Hub-bearing unit based on double reduction mechanism |
| CN108194515B (en) * | 2017-12-21 | 2019-07-19 | 南京航空航天大学 | Wheel hub bearing unit based on two-stage reduction mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |