CN201714917U - Planetary gear speed reducer - Google Patents
Planetary gear speed reducer Download PDFInfo
- Publication number
- CN201714917U CN201714917U CN2010202075283U CN201020207528U CN201714917U CN 201714917 U CN201714917 U CN 201714917U CN 2010202075283 U CN2010202075283 U CN 2010202075283U CN 201020207528 U CN201020207528 U CN 201020207528U CN 201714917 U CN201714917 U CN 201714917U
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- China
- Prior art keywords
- planetary gear
- planet
- planet wheel
- wheel
- speed reducer
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Abstract
The utility model discloses a planetary gear speed reducer which comprises a more than two-stage planetary gear train drive mechanism arranged between an input device and an output device, wherein a planetary gear bracket in the planetary gear train drive mechanism consists of a hollow wheel carrier shell and at least three of planetary gear shafts which are fixed in the hollow wheel carrier shell and are evenly distributed along the periphery; the wheel carrier shell comprises an annular cylinder-shaped peripheral wall as well as a front end wall and a back end wall which are fixedly connected with the front end face and the back end face of the peripheral wall; the front end and the back end of each planetary gear shaft are respectively fixed on the front end wall and the back end wall; the planetary gear is rotatably assembled on each corresponding planetary gear shaft by a plurality of bearings; and the peripheral wall is provided with a through hole which is elicited out of the peripheral wall corresponding to the gear body of the planetary gear which is far away from the center. As the planetary gear bracket adopts the hollow shell structure which can pack the planetary gear shafts and the planetary gear therein, the planetary gear speed reducer is compact in structure and is convenient to wholly disassemble and assemble; and as the planetary gear shafts are fixed front and back, the planetary gear speed reducer overcomes the defect caused by the fixation mode of an unilateral cantilever in the prior art.
Description
Technical field
The utility model relates to the speed reducer of the lifting mechanism of electric hoist crane.
Background technique
In the electric hoist crane that planet-gear speed reducer is applied to generally use at home, existing this type of planet-gear speed reducer generally comprises the input device that is installed in the reel, output unit and the multistage sun gear that is provided with between the two, planet wheel, planet carrier, the planetary gear train driving mechanism that gear ring constitutes, planet carrier of the prior art is the annulus sheet structure that an end end face is fixed with planet wheel shaft, planet wheel shaft one end is hung on the planet carrier, the other end rotates by bearing and is assemblied on the planet wheel, and the planet wheel shaft of this cantilever structure makes it cause noise bigger in the steadily easy inadequately generation circular runout of high speed rotating.
The model utility content
The purpose of this utility model is to provide a kind of compact structure, stable transmission planet-gear speed reducer.
The technical solution of the utility model is: a kind of plane table thermoconductivity meter, comprise the above planetary gear train driving mechanism of being located between input device and the output unit of two-stage, planetary gear train driving mechanisms at different levels are by sun gear, ring gear, planet wheel, planet carrier constitutes, described planet carrier is by the wheel rack enclosure of hollow and is fixed in constituting along the equally distributed planet wheel shaft more than three of circumference in the wheel rack enclosure, the described rack enclosure of taking turns comprises the perisporium of cylinder shape and is fixed on the front bulkhead of perisporium front/rear end, aft bulkhead, the rear and front end of described each planet wheel shaft fix respectively described before, on the aft bulkhead, described planet wheel rotates by bearing and is assemblied on each corresponding planet wheel shaft, offers deep wheel body for the corresponding row star-wheel on the described perisporium and leans out through hole outside the perisporium.
Described planet wheel shaft inserting is fixed in the corresponding mounting hole of offering and by jump ring on wheel rack enclosure front and back ends wall.
State front bulkhead and offer the center hole that the sun gear for the planetary gear train driving mechanism of input device or upper level stretches into, described aft bulkhead extends axially and is provided with inner spline housing.
Planet carrier of the present utility model adopts the hollow casing structure that planet wheel shaft and planet wheel can be wrapped into wherein, compact structure and be convenient to integral disassembly, assembly, fixing before and after the employing of planet wheel shaft simultaneously, on the opposite end walls that is fixed in hollow casing that can be stable, avoid the defective that one-sided cantilever means of fixation is brought in the prior art, and the planet wheel shaft that is provided with of being uniformly distributed along the circumference makes the radial component of each each engagement place of planet wheel and centrifugal inertia force that planetary gear revolution is produced be able to balance separately, to reduce the active force in the main bearing, the stationarity that increases running increases working life.
Further, planet wheel shaft adopts jump ring to be fixed in the corresponding mounting hole of planet carrier, is convenient to dismounting.
In addition, the end wall of planet carrier one end is provided with inner spline housing, realizes and the output unit of corresponding end or the transmission of sun gear.
Description of drawings
Fig. 1 is an embodiment's of the present utility model structural representation;
Fig. 2 is the first order planet wheel among Fig. 1 and the cooperating structure schematic representation of first order ring gear;
Fig. 3 is the first order planet carrier among Fig. 1 and the cooperating structure schematic representation of first order sun gear.
Embodiment
As shown in Figure 1, the embodiment of planet-gear speed reducer of the present utility model, comprise that housing 4, coaxial rotation are assemblied in the input device 1 of housing 4 front and back positions, output unit 15, and housing 4 inside are arranged at the third-level planetary train driving mechanism between input, the output unit, input device 1 in the present embodiment is an input shaft, and output unit 15 is an inner spline housing.Planetary gear train driving mechanisms at different levels by sun gear, and fixing ring gear, the engagement of housing 4 be assemblied in three planet wheels between sun gear and the ring gear, rotate the planet carrier that assembling is provided with described each planet wheel and constitute, first order sun gear 7 is wholely set with input device 1, remove on the third level planet carrier 17 and be wholely set output unit 15, the planet carrier in remaining I and II planet wheel train driving mechanism all cooperates with shaft drive by spline with the sun gear of subordinate.
Because the structure of planetary gear train driving mechanisms at different levels is identical, with first order planetary gear train driving mechanism is that example is introduced, as Fig. 1, Fig. 2, shown in Figure 3, first order planet carrier 3 is by the wheel rack enclosure 40 of hollow and is fixed in constituting along equally distributed three planet wheel shafts 41 of circumference in the wheel rack enclosure 40, describedly take turns the front bulkhead 402 that rack enclosure 40 comprises the perisporium 401 of cylinder shape and is fixed on perisporium 401 front/rear ends, aft bulkhead 403, front bulkhead 402 offers the center hole for the input device inserting, and aft bulkhead 403 offers center hole and outwards extends axially on center hole and is provided with the inner spline housing 404 that cooperates by the spline transmission with second level sun gear 18.The rear and front end of described planet wheel shaft 41 is inserting corresponding mounting hole of offering and fix by jump ring on wheel rack enclosure 40 forward and backward end walls respectively, and each first order planet wheel 20 rotates by bearing and is assemblied on each corresponding planet wheel shaft 41.The deep wheel body that offers three each planet wheels of confession on the described perisporium 401 leans out the through hole 405 outside the perisporium 401.Make each first order planet wheel 20 be able to and 5 engagements of corresponding first order ring gear by this through hole 405.
Embodiment of the present utility model is when work, motor links to each other with speed reducer input device 1 by shaft coupling, drive first order sun gear 7, sun gear drives first order planet wheel 20, driving first order planet carrier 3 rotates around the sun gear axis, thereby drive second level sun gear 18, and drive second, third grade planetary gear train driving mechanism successively, at last by output unit 15 output torques.
Planet wheel in the planetary gear train driving mechanisms at different levels in the foregoing description also can be more than four.
Claims (3)
1. plane table thermoconductivity meter, comprise the above planetary gear train driving mechanism of being located between input device and the output unit of two-stage, planetary gear train driving mechanisms at different levels are by sun gear, ring gear, planet wheel, planet carrier constitutes, its spy is: described planet carrier is by the wheel rack enclosure of hollow and is fixed in constituting along the equally distributed planet wheel shaft more than three of circumference in the wheel rack enclosure, the described rack enclosure of taking turns comprises the perisporium of cylinder shape and is fixed on the front bulkhead of perisporium front/rear end, aft bulkhead, the rear and front end of described each planet wheel shaft fix respectively described before, on the aft bulkhead, described planet wheel rotates by bearing and is assemblied on each corresponding planet wheel shaft, offers deep wheel body for the corresponding row star-wheel on the described perisporium and leans out through hole outside the perisporium.
2. plane table thermoconductivity meter according to claim 1 is characterized in that: described planet wheel shaft inserting is fixed in the corresponding mounting hole of offering and by jump ring on wheel rack enclosure front and back ends wall.
3. plane table thermoconductivity meter according to claim 1 and 2 is characterized in that: described front bulkhead offers the center hole that the sun gear for the planetary gear train driving mechanism of input device or upper level stretches into, and described aft bulkhead extends axially and is provided with inner spline housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202075283U CN201714917U (en) | 2010-05-28 | 2010-05-28 | Planetary gear speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202075283U CN201714917U (en) | 2010-05-28 | 2010-05-28 | Planetary gear speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201714917U true CN201714917U (en) | 2011-01-19 |
Family
ID=43460913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202075283U Expired - Fee Related CN201714917U (en) | 2010-05-28 | 2010-05-28 | Planetary gear speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201714917U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322138A (en) * | 2013-06-28 | 2013-09-25 | 上海新跃仪表厂 | Multi-stage planet gear reducer |
| CN105962809A (en) * | 2016-06-30 | 2016-09-28 | 九阳股份有限公司 | Multifunctional cooking platform |
| CN108178078A (en) * | 2018-03-06 | 2018-06-19 | 上海振华重工(集团)股份有限公司 | A kind of lifting mechanism and lifting equipment |
| CN108343711A (en) * | 2018-04-26 | 2018-07-31 | 郑州机械研究所有限公司 | Coaxial-type large torque hollow shaft input and output planetary driving device |
| CN108757842A (en) * | 2018-07-16 | 2018-11-06 | 宁津县金宏机械有限责任公司 | Planetary reduction gear and transmission system |
-
2010
- 2010-05-28 CN CN2010202075283U patent/CN201714917U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322138A (en) * | 2013-06-28 | 2013-09-25 | 上海新跃仪表厂 | Multi-stage planet gear reducer |
| CN105962809A (en) * | 2016-06-30 | 2016-09-28 | 九阳股份有限公司 | Multifunctional cooking platform |
| CN108178078A (en) * | 2018-03-06 | 2018-06-19 | 上海振华重工(集团)股份有限公司 | A kind of lifting mechanism and lifting equipment |
| CN108178078B (en) * | 2018-03-06 | 2024-04-23 | 上海振华重工(集团)股份有限公司 | Hoisting mechanism and hoisting equipment |
| CN108343711A (en) * | 2018-04-26 | 2018-07-31 | 郑州机械研究所有限公司 | Coaxial-type large torque hollow shaft input and output planetary driving device |
| CN108757842A (en) * | 2018-07-16 | 2018-11-06 | 宁津县金宏机械有限责任公司 | Planetary reduction gear and transmission system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Niu Kelun (Xinxiang) Crane Co., Ltd. Assignor: Weihua Co., Ltd. Contract record no.: 2012410000003 Denomination of utility model: Planet gear reducer Granted publication date: 20110119 License type: Exclusive License Record date: 20120215 |
|
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Niu Kelun (Xinxiang) Crane Co., Ltd. Assignor: Weihua Co., Ltd. Contract record no.: 2012410000003 Date of cancellation: 20120321 |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Niu Kelun (Xinxiang) Crane Co., Ltd. Assignor: Weihua Co., Ltd. Contract record no.: 2012410000026 Denomination of utility model: Planet gear reducer Granted publication date: 20110119 License type: Exclusive License Record date: 20120321 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20150528 |
|
| EXPY | Termination of patent right or utility model |