CN203809665U - Planet gearbox - Google Patents
Planet gearbox Download PDFInfo
- Publication number
- CN203809665U CN203809665U CN201420189574.3U CN201420189574U CN203809665U CN 203809665 U CN203809665 U CN 203809665U CN 201420189574 U CN201420189574 U CN 201420189574U CN 203809665 U CN203809665 U CN 203809665U
- Authority
- CN
- China
- Prior art keywords
- planet carrier
- cover plate
- drive link
- casing
- gear
- 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 - Fee Related
Links
Abstract
The utility model discloses a planet gearbox which comprises a box body, at least one planet carrier and planet carrier cover plates. The box body is in a circular groove shape, an opening is formed in the top of the box body, a hole is formed in the bottom of the box body, a bearing is arranged in the hole, the box body is of a multi-layer box wall structure and is plastic, gaps exist among all box walls, multiple reinforcing ribs are arranged in the gaps, each planet carrier is inserted into the opening of the box body, a transfer bar is arranged on one side of a base plate of each planet carrier, supporting columns are arranged on the other side of the base plate of each planet carrier, the transfer bar is arranged in the bearing in a penetrating mode, gears are arranged on the supporting columns in a sleeved mode and arranged on the supporting columns in a covering and combined mode through the planet carriers so that the gears can be limited, and the inner wall of the box body is provided with inner teeth meshed with the gears. The planet gearbox is simple and compact in structure, capable of effectively lowering noise, good in insulativity and capable of guaranteeing smooth operation.
Description
Technical field
The utility model relates to mechanical transmissioning technology field, particularly a kind of epicyclic gearbox.
Background technique
Epicyclic gearbox is the vitals of extensive use in mechanical transmission, during a pair of gear engagement, owing to inevitably existing tooth pitch, profile of tooth equal error, in operation process, can produce mesh impact and the noise corresponding with gear mesh frequency occurs, between the flank of tooth because frictional noise also occurs relative sliding.Because gear is the fundamental parts in gearbox drive, reduce gear noiose very necessary to control gear case noise.In general, the reason that gear train noise occurs mainly contains the following aspects:
1. design of gears aspect.It is improper that parameter is selected, and contact ratio is too small, and profile modification is improper or there is no correction of the flank shape, and gear box structure is unreasonable etc.Gear Processing aspect base pitch error and tooth profile error are excessive, and backlash is excessive, and surface roughness is excessive etc.
2. train of gearings and gear-box aspect.Assembling is eccentric, and contact precision is low, and the parallelism of axle is poor, axle, and the insufficient rigidity of bearing, supporting, the not high and gap of the rotating accuracy of bearing is improper etc.
3. other aspect input torques.The fluctuation of load torque, the torsional oscillation of axle system, the balance of motor and other transmission etc.
General gear-box is all the metallic material adopting, metallic material rigidity and wear-resistant aspect have certain advantage, and fewer producer is used plastics because plastics hardness and wear-resistant aspect do not have the good of metallic material.Some producer that adopts plastics to manufacture gear-box thickeies the thickness of gear-box simply in the hope of reaching better intensity, but there is no good effect.
Model utility content
The technical problems to be solved in the utility model is for above-mentioned the deficiencies in the prior art, and the epicyclic gearbox of a kind of appearance insulation, minimizing input power and minimizing noise is provided.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of epicyclic gearbox, comprises casing, at least one planet carrier and planet carrier cover plate; Described casing is cylindric, and the open top of this casing and bottom opening are provided with bearing in this perforate, and concentric multilayer next door is set in this casing, between each layer of next door, has space, and some stiffening ribs are set in this space; Described planet carrier inserts from the opening of casing, one side on the chassis of described planet carrier is provided with drive link, the opposite side on this chassis is provided with pillar, this drive link is arranged in described bearing, described geared sleeve is located on this pillar, and cover on pillar by described planet carrier cover plate, with spacing described gear; The inwall of described casing is provided with the internal tooth being meshed with described gear.
In technique scheme, the chassis of described planet carrier comprises the central part of metal and the ring part of plastics, and this drive link is fixed on this central part; The opposite side on described chassis is provided with three described pillars that axially arrange along described drive link.
In technique scheme, described planet carrier cover plate is annular plate-like, and this planet carrier cover plate is provided with the trepanning corresponding with described pillar.
In technique scheme, described planet carrier is provided with two, is respectively primary planet carrier and secondary planet frame, and described planet carrier cover plate and planet carrier support the use; The meshed transmission gear of the drive link of this primary planet carrier and this secondary planet frame.
In technique scheme, the gear in described primary planet carrier is teeth plastic, and the gear in described secondary planet frame is powder metallurgy toothed.
In technique scheme, the multilayer next door of described casing is formed in one.
In technique scheme, described planet carrier cover plate is provided with some blades towards a side of planet carrier.
In technique scheme, described blade is perpendicular to described planet carrier cover plate.
In technique scheme, described in be arranged in the drive link of bearing and be also arranged with the clasp of drive link radial location.
The beneficial effects of the utility model are: the utility model simple and compact structure, the intensity that the structure in multilayer next door makes gear-box more, the gear-box of plastics can also insulate, prevent the electric leakage of metal cabinet, also have the casing of plastics can reduce noise, even use multistage planet carrier structure also can effectively reduce noise; The chassis of planet carrier is comprised of the central part of metal and the ring part of plastics, and the central part of metal is in order to guarantee being rigidly connected of drive link and chassis, and the ring part of plastics is with needs, to reduce weight as far as possible, can effectively reduce the needed power of input; Multistage planet carrier can carry out multistage deceleration effect; As primary planet carrier, use its center of gravity meeting of metal gear more stable, secondary planet frame is as reducing with the gear of plastic cement the required power of input with input stage is direct coupled; On planet carrier cover plate, blade is set, can makes lubricant oil because blade constantly rotates the rotating force producing, lubricant oil be beaten to gear in the process of free fall, working gear is obtained more smooth and easy; Clasp prevents drive link sideslip in rotary course.
Accompanying drawing explanation
Fig. 1 is integrally-built schematic top plan view of the present utility model;
Fig. 2 is the structural representation of the planet carrier cover plate with blade of the present utility model;
Fig. 3 is decomposition texture schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, 2, 3, a kind of epicyclic gearbox, comprise casing 1, primary planet carrier 7, secondary planet frame 2 and with the supporting two planet carrier cover plates 4 of planet carrier.
Casing 1 is cylindric, casing 1 open top, and bottom opening, tapping is provided with bearing 5, is provided with concentric multilayer next door in casing 1, comprises internal layer next door 12 and outer next door 11, between outer next door 11 and internal layer next door 12, leave an annular space, in this space, be provided with and the integrated stiffening rib of casing 1, this double bulkhead makes the casing 1 of plastics have very high intensity, is enough to meet normal running needs.The casing 1 of plastics can reduce noise and play the effect of insulation.
Planet carrier comprises chassis 22, drive link 23 and pillar 21, and drive link 23 is vertically fixed on 22Yi Ce center, chassis, and pillar 21 is vertically installed in the opposite side on chassis 22; Chassis 22 is comprised of the central part of metal and the ring part of plastics, this drive link 23 is just fixed on this central part, between three pillar 21 grades, be arranged on this ring part, three gears 3 are set in respectively on these three pillars 21, and a space is left at the center that these three gears 3 surround.The drive link 23 of primary planet carrier 7 is through the intermediate openings of planet carrier cover plate 4 and be inserted in the space that three gears 3 of secondary planet frame 2 surround, and the drive link 23 of primary planet carrier 7 is provided with the teeth that are meshed with the gear 3 of secondary planet frame 2.The drive link 23 of secondary planet frame 7 is arranged in the bearing 5 of casing 1, and carrys out positioning transmission bar 23 with C type clasp 6, prevents drive link 23 radial deflections.Wherein, the gear in primary planet carrier 7 is teeth plastic, and the gear in secondary planet frame 2 is powder metallurgy toothed.
Planet carrier cover plate 4 is the annular plate-like of plastics, intermediate openings, and this planet carrier cover plate is provided with the trepanning corresponding with above-mentioned pillar 21, and by this trepanning, planet carrier cover plate 4 covers on the pillar 21 of planet carrier, with moving axially of limiting gear 3.
Preferred this planet carrier cover plate 4 is provided with blade 8, this blade 8 is arranged at planet carrier cover plate 4 towards a side of gear 3, three these blades 8 are vertically set on planet carrier cover plate 4, this blade 8 can be for along radius setting or be non-ly radially to arrange, can be therefrom clockwise skew or skew counterclockwise of mind-set surrounding, the direction of apparent rotation and determining.That is to say that the two ends of blade 8 are for to extend to outer rim from the inner edge of planet carrier cover plate 4, the direction of extending and its radius heavily do not fall.Object is that the lubricant oil freely gliding is got rid of back toward gear 3 directions, allows gear 3 keep lubricated, can be rotated swimmingly, keeps the stable of mechanical life and work.
Above embodiment is just explanation rather than restriction the utility model, and the equivalence of doing according to the method described in the utility model patent claim therefore all changes or modifies, and is included in the utility model patent claim.
Claims (9)
1. an epicyclic gearbox, is characterized in that: comprise casing, at least one planet carrier and planet carrier cover plate; Described casing is cylindric, and the open top of this casing and bottom opening are provided with bearing in this perforate, and concentric multilayer next door is set in this casing, between each layer of next door, has space, and some stiffening ribs are set in this space; Described planet carrier inserts from the opening of casing, one side on the chassis of described planet carrier is provided with drive link, the opposite side on this chassis is provided with pillar, this drive link is arranged in described bearing, described geared sleeve is located on this pillar, and cover on pillar by described planet carrier cover plate, with spacing described gear; The inwall of described casing is provided with the internal tooth being meshed with described gear.
2. a kind of epicyclic gearbox according to claim 1, is characterized in that: the chassis of described planet carrier comprises the central part of metal and the ring part of plastics, and this drive link is fixed on this central part; The opposite side on described chassis is provided with three described pillars that axially arrange along described drive link.
3. a kind of epicyclic gearbox according to claim 1, is characterized in that: described planet carrier cover plate is annular plate-like, and this planet carrier cover plate is provided with the trepanning corresponding with described pillar.
4. a kind of epicyclic gearbox according to claim 1, is characterized in that: described planet carrier is provided with two, is respectively primary planet carrier and secondary planet frame, and described planet carrier cover plate and planet carrier support the use; The meshed transmission gear of the drive link of this primary planet carrier and this secondary planet frame.
5. a kind of epicyclic gearbox according to claim 4, is characterized in that: the gear in described primary planet carrier is teeth plastic, and the gear in described secondary planet frame is powder metallurgy toothed.
6. a kind of epicyclic gearbox according to claim 1, is characterized in that: the multilayer next door of described casing is formed in one.
7. a kind of epicyclic gearbox according to claim 1, is characterized in that: described planet carrier cover plate is provided with some blades towards a side of planet carrier.
8. a kind of epicyclic gearbox according to claim 7, is characterized in that: described blade is perpendicular to described planet carrier cover plate.
9. a kind of epicyclic gearbox according to claim 1, is characterized in that: described in be arranged in the drive link of bearing and be also arranged with the clasp of drive link radial location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420189574.3U CN203809665U (en) | 2014-04-18 | 2014-04-18 | Planet gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420189574.3U CN203809665U (en) | 2014-04-18 | 2014-04-18 | Planet gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203809665U true CN203809665U (en) | 2014-09-03 |
Family
ID=51448417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420189574.3U Expired - Fee Related CN203809665U (en) | 2014-04-18 | 2014-04-18 | Planet gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203809665U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822822A (en) * | 2015-01-08 | 2016-08-03 | 艾默生环境优化技术(苏州)有限公司 | Speed reducing mechanism and electronic expansion valve comprising same |
-
2014
- 2014-04-18 CN CN201420189574.3U patent/CN203809665U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822822A (en) * | 2015-01-08 | 2016-08-03 | 艾默生环境优化技术(苏州)有限公司 | Speed reducing mechanism and electronic expansion valve comprising same |
| CN105822822B (en) * | 2015-01-08 | 2019-08-06 | 艾默生环境优化技术(苏州)有限公司 | Speed reducing mechanism and electronic expansion valve comprising same |
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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: 20140903 Termination date: 20200418 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |