CN201763899U - Combined double-helical-tooth planetary transmission mechanism - Google Patents
Combined double-helical-tooth planetary transmission mechanism Download PDFInfo
- Publication number
- CN201763899U CN201763899U CN2010205184780U CN201020518478U CN201763899U CN 201763899 U CN201763899 U CN 201763899U CN 2010205184780 U CN2010205184780 U CN 2010205184780U CN 201020518478 U CN201020518478 U CN 201020518478U CN 201763899 U CN201763899 U CN 201763899U
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- Prior art keywords
- helical
- planet wheel
- gear
- transmission mechanism
- tooth
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- Expired - Fee Related
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The utility model discloses a combined double-helical-tooth planetary transmission mechanism, comprising a sun wheel, a planet wheel and an internal gear; the planet wheel is installed on a planet carrier through a planet wheel shaft; the sun wheel, the planet wheel and the internal gear are all composed of two helical gears having the same size, opposite rotary directions and the same gear parameter; the two helical gears on the sun wheel are respectively engaged with the two helical gears on the planet wheel; and the two helical gears on the planet wheel are respectively engaged with the two helical gears on the internal gear. In the utility model, a double-helical-tooth planetary transmission mechanism is used, besides all characteristics of double-helical-tooth planetary transmission mechanism such as small floor area, high bearing ability, high complete machine transmission efficiency and long service life, and the mechanism has the advantages of convenience in processing, relatively small volume, low dependence on processing equipment, and the like.
Description
Technical field
The utility model relates to the Gear Planet Transmission field, specifically, is a kind of combination diclinic tooth epicyclic transmission mechanism.
Background technique
Epicyclic transmission mechanism is generally used for the occasion of low-speed heave-load, is widely used in industries such as metallurgy, building materials, electric power.Along with the develop rapidly of production technology, the transmitted power of planetary gear mechanism is increasing, and requires the volume of driving mechanism, weight more and more littler, and reliability and demands for bearing capacity are also more and more higher.Relative helical teeth of diclinic tooth epicyclic transmission mechanism and straight-tooth have more superiority, to satisfy the demand for development of epicyclic transmission mechanism.Diclinic tooth epicyclic transmission mechanism commonly used as shown in Figure 2, is made up of sun gear 1, many planet wheels 2 and internal gear 3, and many planet wheels 2 are installed on the planet carrier 5 through each planet wheel shaft 4.Sun gear 1 is provided with rotation direction opposite helical teeth 1a, 1b, and planet wheel 2 is provided with rotation direction opposite helical teeth 2a, 2b, and internal gear 3 is made up of two opposite helical gear 3a, 3b of rotation direction.Helical teeth 1a, 1b on the sun gear 1 respectively with many planet wheels 2 on helical teeth 2a, 2b engagement, helical teeth 2a, the 2b on many planet wheels 2 respectively with internal gear 3 on two helical gear 3a, 3b engagements.Internal gear 3 is arranged to be made up of two opposite helical gear 3a, 3b of rotation direction, the angular pitch of helical gear 3a, 3b that its two rotation direction is opposite from people's tooth tool withdrawal groove equal in length of sun gear 1 and planet wheel 2, its objective is easy for installation for internal gear 3.
The subject matter that this structure exists is: the herringbone tooth on (1) processing sun gear and the planet wheel is cumbersome, after processing helical teeth on one side, needs centering could process the opposite helical teeth of rotation direction of another side; (2) the processing herringbone tooth can stay long tool withdrawal groove between the opposite helical teeth of rotation direction, and the volume of epicyclic transmission mechanism is increased; When (3) processing long gear, very strong to the dependence of equipment.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of centering that do not need, the diclinic tooth epicyclic transmission mechanism that volume is less relatively and little to device dependence.
For solving above technical problem, the combination diclinic tooth epicyclic transmission mechanism that the utility model provides, comprise sun gear, planet wheel and internal gear, described planet wheel is installed on the planet carrier through planet wheel shaft, its key is: described sun gear is identical by two sizes, rotation direction is opposite, the helical gear that tooth portion parameter is identical is formed, described planet wheel is identical by two sizes, rotation direction is opposite, the helical gear that tooth portion parameter is identical is formed, described internal gear is identical by two sizes, rotation direction is opposite, the helical gear that tooth portion parameter is identical is formed, two helical gears on the sun gear respectively with planet wheel on the engagement of two helical gears, two helical gears on the planet wheel respectively with internal gear on the engagement of two helical gears, two helical gears of described sun gear connect by bolt, two helical gears of described planet wheel connect by bolt, and two helical gears of described internal gear connect by bolt.
Described internal gear is connected by bolt with casing, and described planet wheel two ends are provided with roller bearing or sliding bearing.
The utility model has adopted diclinic tooth epicyclic transmission mechanism, except that have diclinic tooth epicyclic transmission mechanism take up room little, bearing capacity is high, all characteristics of complete machine transmission efficiency height, long service life, also have more beneficial effect:
(1) sun gear, planet wheel and internal gear helical gear identical by size respectively, that rotation direction is opposite is formed, and the processing helical gear is simple more, convenient, and does not need to need centering as the processing herringbone tooth.
(2) processing helical gear does not separately need tool withdrawal groove as the processing herringbone tooth, and its sun gear, planet wheel and internal gear helical teeth end are much smaller apart from relative tool withdrawal groove length after the assembling, and under the situation of transmitting same power, its volume is less relatively.
(3) because herringbone tooth is divided into two, its helical gear length has reduced half, and its dependence to process equipment also reduces greatly, has improved the processing versatility.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is common diclinic tooth epicyclic transmission mechanism.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Combination diclinic tooth epicyclic transmission mechanism shown in Figure 1 mainly is made up of sun gear 1, planet wheel 2 and internal gear 3, planet wheel shaft 4, planet carrier 5, casing 6.Planet wheel 2 is connected on the planet axis 4 by interference, is installed on the planet carrier 5.Sun gear 1 is made up of two helical gear 1a, 1b that size is identical, rotation direction opposite, tooth portion parameter is identical, planet wheel 2 is made up of two helical gear 2a, 2b that size is identical, rotation direction opposite, tooth portion parameter is identical, and internal gear 3 is made up of two helical gear 3a, 3b that size is identical, rotation direction opposite, tooth portion parameter is identical.Two helical gear 1a, 1b on the sun gear 1 respectively with planet wheel 2 on two helical gear 2a, 2b engagement, two helical gear 2a, 2b on the planet wheel 2 respectively with internal gear 3 on two helical gear 3a, 3b engagements.Two helical gear 1a, 1b of sun gear 1 are bolted to connection together, and two helical gear 2a, 2b of planet wheel 2 are bolted to connection together, and two helical gear 3a, 3b of internal gear 3 are bolted to connection.
Internal gear 3 is bolted to connection together with casing 6, forms a firm body.Planet wheel 2 two ends are provided with roller bearing or sliding bearing, are supported on the planet carrier 5 by roller bearing or sliding bearing, and planet wheel 2 is move left and right in the axial direction, also can adopt the bearing of other axial delocalizations.Planet carrier 5 is supported on the casing 6 by bearing 7 and 8, sun gear 1 axial delocalization.Internal gear 3 axially can not move, planet wheel 2 and sun gear 1 can move axially, internal gear 3, planet wheel 2 and sun gear 1 are rigidly connected into an integral body by link by bolt, therefore have the automatic centering characteristic of diclinic tooth epicyclic transmission mechanism, can locate centering automatically during engagement.Planet carrier 5 drives planet wheel 2 and rotates as input component, passes out power through sun gear 1 again.Also can be reverse, be input component with sun gear 1, planet carrier 5 output powers.For the axial force of avoiding producing in the gear engagement exerts an influence to structure, two helical gear 2a of planet wheel 2 and the axial force direction of 2b are relative, and be promptly stressed face-to-face.Also can sun gear 3 be set to axial restraint according to the structure needs, planet wheel 2 and internal gear 3 axial unfixed combination diclinic tooth epicyclic transmission mechanisms all drop within the protection domain of the present utility model.
Sun gear 1, planet wheel 2 and internal gear 3 all adopt compound mode to constitute the diclinic tooth, can reduce difficulty of processing, adopt general manufacturing equipment just can process.With respect to straight-tooth and monocline tooth epicyclic transmission mechanism, under the situation of transmitting equal-wattage, volume energy reduces 15%, still leave small boss between the two helical teeth ends shown in Fig. 1, mainly be the arts demand that is limited to present processing end face, be generally several millimeters, at most also be no more than 5mm, tool withdrawal groove length with respect to common double helical teeth epicyclic transmission mechanism herringbone tooth is much smaller, and its volume also reduces relatively; Technological development in the future, end face can not reserved small boss fully.Simultaneously, the work sheet helical teeth also reduces greatly to the dependence of equipment, has improved the processing versatility.
Claims (2)
1. one kind is made up diclinic tooth epicyclic transmission mechanism, comprise sun gear (1), planet wheel (2) and internal gear (3), described planet wheel (2) is installed on the planet carrier (5) through planet wheel shaft (4), it is characterized in that: described sun gear (1) is identical by two sizes, rotation direction is opposite, helical gear (the 1a that tooth portion parameter is identical, 1b) form, described planet wheel (2) is identical by two sizes, rotation direction is opposite, helical gear (the 2a that tooth portion parameter is identical, 2b) form, described internal gear (3) is identical by two sizes, rotation direction is opposite, helical gear (the 3a that tooth portion parameter is identical, 3b) form, two helical gear (1a on the sun gear (1), 1b) respectively with planet wheel (2) on two helical gear (2a, 2b) engagement, two helical gear (2a on the planet wheel (2), 2b) respectively with internal gear (3) on two helical gear (3a, 3b) engagement, two helical gear (1a of described sun gear (1), 1b) connect by bolt, two helical gear (2a of described planet wheel (2), 2b) connect two helical gear (3a of described internal gear (3) by bolt, 3b) connect by bolt.
2. according to the described combination diclinic of claim 1 tooth epicyclic transmission mechanism, it is characterized in that: described internal gear (3) is connected by bolt with casing (6), and described planet wheel (2) two ends are provided with roller bearing or sliding bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205184780U CN201763899U (en) | 2010-09-07 | 2010-09-07 | Combined double-helical-tooth planetary transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205184780U CN201763899U (en) | 2010-09-07 | 2010-09-07 | Combined double-helical-tooth planetary transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201763899U true CN201763899U (en) | 2011-03-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205184780U Expired - Fee Related CN201763899U (en) | 2010-09-07 | 2010-09-07 | Combined double-helical-tooth planetary transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201763899U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018049711A1 (en) * | 2016-09-14 | 2018-03-22 | 大连理工大学 | Combination herringbone planetary transmission device having adjustable backlash |
-
2010
- 2010-09-07 CN CN2010205184780U patent/CN201763899U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018049711A1 (en) * | 2016-09-14 | 2018-03-22 | 大连理工大学 | Combination herringbone planetary transmission device having adjustable backlash |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20170907 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |