CN105402328A - Planetary gear - Google Patents
Planetary gear Download PDFInfo
- Publication number
- CN105402328A CN105402328A CN201510890283.6A CN201510890283A CN105402328A CN 105402328 A CN105402328 A CN 105402328A CN 201510890283 A CN201510890283 A CN 201510890283A CN 105402328 A CN105402328 A CN 105402328A
- Authority
- CN
- China
- Prior art keywords
- gear
- planet gear
- planetary gear
- frame
- planetary
- 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.)
- Pending
Links
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
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
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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
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
- F16H57/082—Planet carriers
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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
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
- F16H2001/327—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear with orbital gear sets comprising an internally toothed ring gear
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The invention discloses a planetary gear. The planetary gear comprises a sun gear, an annular gear and a rack body, wherein the sun gear sleeves an inputting shaft; the annular gear sleeves an outputting shaft; a first planetary gear body, a second planetary gear body, a third planetary gear body and a fourth planetary gear body are arranged between the sun gear and the annular gear; and the first planetary gear body, the second planetary gear body, the third planetary gear body and the fourth planetary gear body are simultaneously meshed with the sun gear and the annular gear. The problem that outputting components cannot be positioned accurately can be solved effectively. The planetary gear has the beneficial effects of easiness in modification, long service life, low cost and the like.
Description
Technical field
The present invention relates to a kind of gear, particularly relating to one can carry out pinpoint gear.
Background technique
Gear is generally as acceleration or deceleration effect, existing gear generally all comprises sun gear, bracket, ring gear and planetary pinion, but the engagement place of planetary pinion and sun gear and ring gear can produce back clearance, due to the existence of this back clearance, can produce cannot be correct control in conjunction with the output link in epicyclic gear mechanism, or be provided with the problem of rotational position of epicyclic gear mechanism arrangement, thus cause output link to position accurately.
Therefore those skilled in the art be devoted to exploitation one can carry out pinpoint gear structure.
Summary of the invention
Because the above-mentioned defect of prior art, those skilled in the art are devoted to exploitation one can carry out pinpoint gear structure.
Technical problem to be solved by this invention is to provide a kind of planetary pinion, comprise sun gear, ring gear and support body, sun gear is set on input shaft, described ring gear is set on described output shaft, is provided with first planet gear, the second planetary pinion, third planet gear and fourth planet gear between sun gear and ring gear;
First planet gear, the second planetary pinion, third planet gear and fourth planet gear engage with sun gear and ring gear simultaneously;
Frame comprises the first frame and the second frame, and the first frame comprises first planet gear supporting portion, and the second frame comprises the second Supporting Planetary Gears portion;
First planet gear and third planet gear is rotatable is arranged on first planet gear supporting portion, the second planetary pinion and fourth planet gear is rotatable is arranged on the second Supporting Planetary Gears portion;
Depressed part is provided with between first planet gear supporting portion and the second Supporting Planetary Gears portion;
Frame is provided with the first screw, the second screw, the 3rd screw and the 4th screw; First screw passes the first frame and the second frame, and between first planet gear second Supporting Planetary Gears portion; Second screw is arranged between third planet gear and fourth planet gear.
In order to extend the working life of support body, support body adopts stainless steel to make.
The invention has the beneficial effects as follows: the present invention effectively can solve the problem that output link cannot position accurately to there is transformation simple, long service life, the beneficial effect such as to reduce costs.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the invention.
Fig. 2 is the A-A sectional structure schematic diagram in Fig. 1 of the present invention.
Fig. 3 is the B-B sectional structure schematic diagram in Fig. 1 of the present invention.
Embodiment
Below in conjunction with drawings and Examples
The invention will be further described:
As shown in Figure 1-Figure 3, a kind of planetary pinion, comprise sun gear 20, ring gear 30 and support body 50, described sun gear 20 is set on input shaft 2, described ring gear 30 is set on output shaft 4, is provided with first planet gear 41, second planetary pinion 42, third planet gear 43 and fourth planet gear 44 between sun gear 20 and ring gear 30;
First planet gear 41, second planetary pinion 42, third planet gear 43 and fourth planet gear 44 engage with sun gear 20 and ring gear 30 simultaneously;
Frame 50 comprises the first frame 52 and the second frame 56, first frame 52 and comprises first planet gear supporting portion 53, second frame 56 and comprise the second Supporting Planetary Gears portion 54;
First planet gear 41 is arranged on first planet gear supporting portion 53 with third planet gear 43 is rotatable, and the second planetary pinion 42 is arranged on the second Supporting Planetary Gears portion 54 with fourth planet gear 44 is rotatable;
Depressed part 55 is provided with between first planet gear supporting portion 53 and the second Supporting Planetary Gears portion 54; First frame 52 and the second frame 56 are positioned at this depressed part 55, are fixed by depressed part 55, to improve the stable degree of the first frame 52 and the second frame 56.
Frame 50 is provided with the first screw 61, second screw 62, the 3rd screw 63 and the 4th screw 64; First screw 61 passes the first frame 52 and the second frame 56, and between first planet gear 41 second Supporting Planetary Gears portion 54; Second screw 63 is arranged between third planet gear 43 and fourth planet gear 44.Support body 50 adopts stainless steel to make.
The first screw 61, second screw 62, the 3rd screw 63 and the 4th screw 64 is utilized to form an adjusting member in the present invention, utilize this adjusting member to adjust the first frame 52 and the second frame 56, by the first screw 61, second screw 62, the 3rd screw 63 and the 4th screw 64, first frame 52 and the second frame 56 are adjusted, so that the rotational position of output link with the correct control problem of highi degree of accuracy, can be able to be solved.
In the present invention, sun gear 20 and ring gear 30 can peripherally rotate in direction, support body 50 then cannot rotate in circumferential direction, that is, in so-called planetary pinion capable (form that ring gear can not rotate), sun gear (form that can not rotate) and planetary gear (form that bracket can not rotate).Sun gear 20 is relative to a housing, with can peripherally direction rotate mode support, in the present embodiment, input shaft 2 is bonded on sun gear 20, and make its rotation axis coincident.When input shaft 2 rotates, sun gear 20 rotates together with input shaft 2.Ring gear 30 be one radially direction be positioned at the gear outside sun gear 20.This ring gear 30 be relative to this housing can peripherally direction rotate mode support, when ring gear 30 rotates, output shaft 4 rotates together with ring gear 30.First planet gear 41, second planetary pinion 42, between third planet gear 43 and fourth planet gear 44, each spacing is 90 °, and arrange in circumferential direction, the order that peripherally direction is arranged such as its grade is planetary pinion 41, second planetary pinion 42, third planet gear 43 and fourth planet gear 44, this planetary pinion 41, second planetary pinion 42, third planet gear 43 and fourth planet gear 44 engage with sun gear 30, thus the spinning force of the sun gear 20 rotated together with output shaft 2 can be passed on the ring gear 30 that output shaft 4 rotates together via planetary pinion.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art just design according to the present invention can make many modifications and variations without the need to creative work.Therefore, all technician in the art, all should by the determined protection domain of claims under this invention's idea on the basis of existing technology by the available technological scheme of logical analysis, reasoning, or a limited experiment.
Claims (2)
1. a planetary pinion, it is characterized in that: comprise sun gear (20), ring gear (30) and support body (50), described sun gear (20) is set on input shaft (2), described ring gear (30) is set on described output shaft (4), is provided with first planet gear (41), the second planetary pinion (42), third planet gear (43) and fourth planet gear (44) between described sun gear (20) and described ring gear (30);
Described first planet gear (41), the second planetary pinion (42), third planet gear (43) and fourth planet gear (44) engage with described sun gear (20) and ring gear (30) simultaneously;
Described frame (50) comprises the first frame (52) and the second frame (56), described first frame (52) comprises first planet gear supporting portion (53), and described second frame (56) comprises the second Supporting Planetary Gears portion (54);
Described first planet gear (41) is arranged on described first planet gear supporting portion (53) with described third planet gear (43) is rotatable, and described second planetary pinion (42) is arranged on described second Supporting Planetary Gears portion (54) with fourth planet gear (44) is rotatable;
Depressed part (55) is provided with between described first planet gear supporting portion (53) and described second Supporting Planetary Gears portion (54).
2. planetary pinion as claimed in claim 1, is characterized in that: support body (50) adopts stainless steel to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510890283.6A CN105402328A (en) | 2015-12-05 | 2015-12-05 | Planetary gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510890283.6A CN105402328A (en) | 2015-12-05 | 2015-12-05 | Planetary gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105402328A true CN105402328A (en) | 2016-03-16 |
Family
ID=55468009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510890283.6A Pending CN105402328A (en) | 2015-12-05 | 2015-12-05 | Planetary gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105402328A (en) |
-
2015
- 2015-12-05 CN CN201510890283.6A patent/CN105402328A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160316 |
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| WD01 | Invention patent application deemed withdrawn after publication |