CN203770543U - Double-helical-tooth planetary gearbox - Google Patents
Double-helical-tooth planetary gearbox Download PDFInfo
- Publication number
- CN203770543U CN203770543U CN201320794485.7U CN201320794485U CN203770543U CN 203770543 U CN203770543 U CN 203770543U CN 201320794485 U CN201320794485 U CN 201320794485U CN 203770543 U CN203770543 U CN 203770543U
- Authority
- CN
- China
- Prior art keywords
- planetary
- gear
- planet
- gears
- gearbox
- 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 - Lifetime
Links
- 125000006850 spacer group Chemical group 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 abstract description 13
- 238000005452 bending Methods 0.000 abstract 1
- 238000012856 packing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Abstract
The utility model relates to a double-helical-tooth planetary gearbox of a planetary gear transmission device. Two inner ring gears of the planetary gearbox are fixed to the box body of the planetary gearbox. Three adjusting pads are installed on three planetary gear shafts respectively. The planetary gear shafts are installed on a planetary carrier. Three planetary gears are installed on the planetary gear shafts through bearings. A center gear is arranged in the middle of the planetary gearbox, and one end of the center gear serves as an input end. A gear sleeve is connected with the planetary carrier, and the end, stretching out of the planetary gearbox, of the gear sleeve serves as an output end. The planetary carrier is meshed with the gear sleeve 7 through crowned teeth. The three planetary gears, the center gear and the two ring gears are double helical gears respectively, and the three planetary gears are meshed with the center gear and the two inner ring gears. According to the double-helical-tooth planetary gearbox, the bearing capacity of the gearbox is improved and load sharing is achieved under the same size, the bending safety factor of the gears is increased by 30%, and the contact safety factor of the gears is increased by 20%.
Description
Technical field
The utility model relates to planetary type gear transmission unit.
Background technique
Gear Planet Transmission is a kind of gear transmission with rotation axis, can be used for deceleration, speedup and differential motion.Planetary Gear Transmission compare with general column gear transmission have lightweight, volume is little, velocity ratio is large, efficiency advantages of higher.Shortcoming is complex structure, and required precision is higher.For the difficulty that reduces design, manufactures and assemble, be all generally to adopt straight-tooth driving mechanism.Straight-tooth transmission can not produce axial force, but its contact ratio and overlap ratio is low, and transmission stability is poor.For meeting torque transmission capacity, the volume of gear-box is often larger.If adopt helical teeth driving mechanism, although it is low to solve contact ratio and overlap ratio, the stationarity of transmission also improves.But helical teeth transmission meeting produces very large axial force, makes the axially locating of driving mechanism very difficult.
Summary of the invention
The utility model is to provide a kind of double helical tooth planetary gear-box, and it is a kind of with the gear-driven epicyclic gearbox of herringbone.
The utility model is realized with following technological scheme:
The utility model comprises the central gear in casing and casing, 3 planet wheels, 3 planet wheel shafts, adjust packing ring for 3, two ring gears, planet carrier, tooth cover, two ring gears are fixed on casing, 3 planet wheel shafts are connected on planet carrier, adjust packing ring respectively on 3 planet wheel shafts for 3, 3 planet wheels are connected on 3 planet wheel shafts by 3 bearings respectively, one end of central gear is input end, tooth is enclosed within on epicyclic gearbox and stretches out epicyclic gearbox is outward output terminal, planet carrier is connected by crowned teeth with tooth cover, 3 planet wheels, central gear, two ring gears are herringbone gear, spacer on planet wheel shaft is adjusted the axial position of planet wheel, make impartial 3 planet wheels of 3 planet wheel stands under load and central gear, two ring gear engagements.
Advantage of the present utility model is:
1, the utility model is simple in structure, under equal volume, can improve the bearing capacity of gear-box, due to adjustment packing ring being housed on planet wheel shaft, being convenient to realize and all carrying.
2, planet wheel of the present utility model, central gear, ring gear are herringbone tooth structure, same load with under coefficient of facewidth prerequisite, compare with monocline tooth, the crooked safety coefficient of gear has improved 30%, touch-safe coefficient has improved 20%.
3, the unsteady planet carrier of the utility model has adopted crowned teeth to be connected with output gear cover, can compensate the angle of deviation and position.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the structural drawing of epicyclic gearbox combination.
Embodiment
In Fig. 1-2: the casing 10 of epicyclic gearbox is fixed in frame, two ring gears 4 and 9 are fixed on casing 10, 3 planet wheel shafts 2 are connected on planet carrier 8, 3 spacers 11 are contained in respectively on 3 planet wheel shafts 2, 3 planet wheels 3 are contained on 3 planet wheel shafts 2 by 3 rolling bearings 6 respectively, spacer 11 can in when assembling, according to planet wheel 3, the actual loading situation during in work be accurately adjusted planet wheel 3 axial position reach the uniform object of 3 planet wheels, 3 load, central gear 1 is at the middle part of epicyclic gearbox 12, one end of central gear 1 is input end, tooth cover 7 output terminals at epicyclic gearbox 12 also stretch out outside epicyclic gearbox 12, central gear 1 and planet wheel 3, planet carrier 8 floating connections, planet carrier 8 meshes by crowned teeth with tooth cover 7.
3 planet wheels 3, central gear 1, two ring gears 4 and 9 be herringbone gear and 3 planet wheels and two ring gears 4 and 9 and central gear 1 by herringbone tooth, mesh simultaneously.During work, power is inputted by input flange 14, parallel stage gear transmission by planet case combination 13 is sent to power the central gear 1 of epicyclic gearbox 12, then by after the herringbone gear transmission in epicyclic gearbox 12, by tooth cover 7, is transmitted power to outside epicyclic gearbox 12.
Claims (1)
1. double helical tooth planetary gear-box, is characterized in that: comprise the casing (10) of epicyclic gearbox (12) and the central gear (1) in casing (10), 3 planet wheels (3), 3 planet wheel shafts (2), 3 spacers (11), two ring gears (4, 9), planet carrier (8), tooth cover (7), two ring gears (4, 9) be fixed on casing (10), 3 planet wheel shafts (2) are connected on planet carrier (8), 3 spacers are respectively on 3 planet wheel shafts (2), 3 planet wheels (3) are connected on 3 planet wheel shafts by 3 bearings (6) respectively, central gear (1) is at the middle part of epicyclic gearbox (12), one end of central gear (1) is input end, tooth cover (7) is connected with planet carrier (8) and stretches out epicyclic gearbox (12) outer is output terminal, planet carrier (8) is connected with a joggle by crowned teeth with tooth cover (7), 3 planet wheels (3), central gear (1), two ring gears (4, 9) be herringbone gear, the spacer (11) on planet wheel shaft (2) is adjusted the axial position of planet wheel (3), makes 3 planet wheels (3) stand under load impartial, and 3 planet wheels (3) and central gear (1), two ring gears (8) are connected with a joggle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320794485.7U CN203770543U (en) | 2013-12-06 | 2013-12-06 | Double-helical-tooth planetary gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320794485.7U CN203770543U (en) | 2013-12-06 | 2013-12-06 | Double-helical-tooth planetary gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203770543U true CN203770543U (en) | 2014-08-13 |
Family
ID=51287735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320794485.7U Expired - Lifetime CN203770543U (en) | 2013-12-06 | 2013-12-06 | Double-helical-tooth planetary gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203770543U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629305A (en) * | 2013-12-06 | 2014-03-12 | 中石化石油工程机械有限公司第四机械厂 | Herringbone-tooth planet gearbox |
-
2013
- 2013-12-06 CN CN201320794485.7U patent/CN203770543U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629305A (en) * | 2013-12-06 | 2014-03-12 | 中石化石油工程机械有限公司第四机械厂 | Herringbone-tooth planet gearbox |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140813 |