CN203130936U - Planetary gear train of speed reducer - Google Patents
Planetary gear train of speed reducer Download PDFInfo
- Publication number
- CN203130936U CN203130936U CN 201320163495 CN201320163495U CN203130936U CN 203130936 U CN203130936 U CN 203130936U CN 201320163495 CN201320163495 CN 201320163495 CN 201320163495 U CN201320163495 U CN 201320163495U CN 203130936 U CN203130936 U CN 203130936U
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- CN
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- Prior art keywords
- planet carrier
- speed reducer
- planetary
- planetary gear
- gear train
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Abstract
The utility model provides a planetary gear train of a speed reducer, belongs to the technical field of machinery, and solves the problems in the prior art that the planetary gear train is low in transmission efficiency and short in service life. The planetary gear train of the speed reducer comprises a planetary carrier, a planetary gear, a sun gear and a gear ring, wherein a bearing and a pin shaft are arranged in the planetary gear, a sliding chute is arranged at the top of the planetary carrier in the radial direction, a sliding block is sleeved on the upper portion of the pin shaft and is located in the sliding chute, and the sliding block can slide relative to the sliding chute and is limited in the sliding chute through the planetary carrier. The planetary gear train of the speed reducer has the advantages of being high in transmission efficiency, convenient to adjust and long in service life.
Description
Technical field
The utility model belongs to field of mechanical technique, has related to a kind of speed reducer, has especially related to a kind of planetary gear train of speed reducer.
Background technique
Planet-gear speed reducer is a kind of speed reducer of using the Gear Planet Transmission principle, military project, space flight, metallurgy, mine, oil, chemical industry, boats and ships, light industry, food, weaving, printing and dyeing, pharmacy, rubber, plastics, and aspect such as lifting transportation obtain increasingly extensive application.
And planetary gear train is a kind of advanced person's gear drive, advantage such as have that compact structure, volume and quality are little, bearing capacity is big, the transmitted power scope is big, running noises is little and the life-span is long.Planetary gear train mainly is made up of planetary pinion, sun gear, planet carrier and gear ring.Planetary pinion is fixed in the planet carrier, engagement in planetary pinion and the sun gear, planetary pinion and gear ring outer gearing.When the engagement of planetary pinion and sun gear and gear ring is too tight or too loose, because planetary pinion is fixed by planet carrier, therefore can't reasonably regulate the back lash of planetary pinion and sun gear and gear ring, reduce transmission efficiency and the working life of planetary gear train.
Summary of the invention
There are the problems referred to above in the utility model at existing technology, has proposed a kind of planetary gear train of speed reducer of the back lash that can free reasonably adjust planetary pinion and sun gear and gear ring.
The utility model is realized by following technical proposal: a kind of planetary gear train of speed reducer, comprise planet carrier, be arranged in the planet carrier planetary pinion and respectively with sun gear and the gear ring of planetary pinion engagement, be provided with in the described planetary pinion planetary pinion is positioned at bearing and bearing pin in the planet carrier, it is characterized in that, the top of described planet carrier radially has chute, described bearing pin top is arranged with slide block and is arranged in described chute, and described slide block and described chute slide and arrange and be limited in the chute by described planet carrier.
In this planetary gear train, sun gear and planetary pinion are arranged in planet carrier, and sun gear is positioned at the planet carrier center.The top of planet carrier radially arranges chute and can make things convenient for slide block mobile in chute, and slide block is arranged on the top of bearing pin, is used for preventing that bearing pin from deviating from from planetary pinion along chute.When the engagement of planetary pinion and sun gear and gear ring is too tight or too loose, slide block will move in chute, and slide block set is on bearing pin top, thereby bearing pin can drive planetary pinion same moved further in planet carrier of being located by bearing pin, thereby play the free back lash of reasonably adjusting planetary pinion and sun gear and gear ring, make the engagement between the gear more reasonable.
In the planetary gear train of above-mentioned a kind of speed reducer, the middle part of described planet carrier has axis hole, and described chute is communicated with described axis hole.
In the planetary gear train of above-mentioned a kind of speed reducer, described slide block adopts metal to make.
Compared with prior art, the planetary gear train of this speed reducer arranges chute by the top at planet carrier, thereby make slide block and bearing pin in chute, to move, and then drive planetary pinion by bearing pin and move, reach the back lash of adjusting planetary pinion and sun gear and gear ring freely, have easy to adjust, in real time synchronously, advantage that transmission efficiency is high; The wearing and tearing of planetary pinion and sun gear and gear ring have also been reduced simultaneously, the working life of having improved planetary gear train.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure, 1, planet carrier; 2, planetary pinion; 3, sun gear; 4, gear ring; 5, bearing pin; 6, bearing; 7, slide block; 8, chute; 9, axis hole.
Embodiment
Below be specific embodiment of the utility model, and by reference to the accompanying drawings the technical solution of the utility model be further described, but the utility model is not limited to these embodiments.
The planetary gear train of a kind of speed reducer as shown in Figure 1, comprise planet carrier 1, be arranged in the planet carrier 1 planetary pinion 2 and respectively with sun gear 3 and the gear ring 4 of planetary pinion 2 engagement, sun gear 3 and planetary pinion 2 are arranged in planet carrier 1, and sun gear 3 is positioned at planet carrier 1 center; Be provided with in the planetary pinion 2 planetary pinion 2 is positioned at bearing 6 and bearing pin 5 in the planet carrier 1, radially have chute 8 at the top of planet carrier 1, the top of bearing pin 5 is arranged with slide block 7 and is arranged in chute 8; This slide block 7 adopts metals to make, and is used for preventing that bearing pin 5 from 2 deviating from along chute 8 from planetary pinion, and this slide block 7 slides with chute 8 and arranges and be limited in the chute 8 by planet carrier 1.Have axis hole 9 at the middle part of planet carrier 1, chute 8 is communicated with axis hole 9.
When planetary pinion 2 and the engagement of sun gear 3 and gear ring 4 are too tight or too loose, slide block 7 will move in chute 8, and slide block 7 is enclosed within bearing pin 5 tops, thereby bearing pin 5 can drive planetary pinion 2 same moved further in planet carrier 1 of being located by bearing pin 5, thereby play the free back lash of reasonably adjusting planetary pinion 2 and sun gear 3 and gear ring 4, make the engagement between the gear more reasonable.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as planet carrier 1, planetary pinion 2, sun gear 3, gear ring 4, bearing pin 5, bearing 6, slide block 7, chute 8, axis hole 9 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (3)
1. the planetary gear train of a speed reducer, comprise planet carrier (1), be arranged on the planetary pinion (2) in the planet carrier (1), and respectively with sun gear (3) and the gear ring (4) of planetary pinion (2) engagement, be provided with in the described planetary pinion (2) planetary pinion (2) is positioned at bearing (6) and bearing pin (5) in the planet carrier (1), it is characterized in that, the top of described planet carrier (1) radially has chute (8), described bearing pin (5) top is arranged with slide block (7) and is arranged in described chute (8), and described slide block (7) slides with described chute (8) and arranges and be limited in the chute (8) by described planet carrier (1).
2. the planetary gear train of a kind of speed reducer according to claim 1 is characterized in that, the middle part of described planet carrier (1) has axis hole (9), and described chute (8) is communicated with described axis hole (9).
3. the planetary gear train of a kind of speed reducer according to claim 1 and 2 is characterized in that, described slide block (7) adopts metal to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320163495 CN203130936U (en) | 2013-03-20 | 2013-03-20 | Planetary gear train of speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320163495 CN203130936U (en) | 2013-03-20 | 2013-03-20 | Planetary gear train of speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203130936U true CN203130936U (en) | 2013-08-14 |
Family
ID=48938916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320163495 Expired - Lifetime CN203130936U (en) | 2013-03-20 | 2013-03-20 | Planetary gear train of speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203130936U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964003A (en) * | 2015-07-14 | 2015-10-07 | 苏州托玛斯自动化科技有限公司 | Planetary reducer |
-
2013
- 2013-03-20 CN CN 201320163495 patent/CN203130936U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964003A (en) * | 2015-07-14 | 2015-10-07 | 苏州托玛斯自动化科技有限公司 | Planetary reducer |
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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 |
Granted publication date: 20130814 |
|
| CX01 | Expiry of patent term |