CN202441816U - Decelerator structure for gardening tool - Google Patents
Decelerator structure for gardening tool Download PDFInfo
- Publication number
- CN202441816U CN202441816U CN2011203394878U CN201120339487U CN202441816U CN 202441816 U CN202441816 U CN 202441816U CN 2011203394878 U CN2011203394878 U CN 2011203394878U CN 201120339487 U CN201120339487 U CN 201120339487U CN 202441816 U CN202441816 U CN 202441816U
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- Prior art keywords
- sun gear
- gear
- planet carrier
- primary
- level
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Abstract
The utility model discloses a decelerator structure for a gardening tool. a primary sun gear closely fitted with a motor shaft is arranged at the input port in a casing, a ring gear is arranged on the peripheral casing of the primary sun gear, a plurality of primary planetary gears are uniformly engaged between the primary sun gear and the ring gear, the side of the primary sun gear, which is far away from the input port, is provided with a primary planet carrier, the centers of the primary planetary gears are provided with primary connecting shafts to drive the primary planet carrier to rotate, the side of the primary planet carrier, which is far away from the input port, is provided with a secondary sun gear, a plurality of secondary planetary gears are uniformly engaged between the secondary sun gear and the ring gear, the side of the secondary sun gear, which is far away from the input port, is provided with a secondary planet carrier and a tertiary planet carrier, and the centers of the secondary planetary gears are provided with secondary connecting shafts to drive the secondary planet carrier and the tertiary planet carrier to rotate. The gearbox structure has the advantages of small size, light weight, compact structure, high transmission efficiency, stable movement, high impact and vibration resistance, coaxial input and output, and low cost.
Description
Technical field
The utility model relates to retarder, is specifically related to the speed reducer dedicated structure of a kind of garden instrument.
Background technique
Colleges and universities' saw is a kind of garden instrument of general practicality, and the existing common structure of its gearbox is the gear shift mode formation with the gear outer gearing, and its shortcoming is that the transmission noise is big, and efficient is low, and small product size is big, and weight is big, and cost is high.
The model utility content
The purpose of the utility model is to overcome the defective that exists in the existing technology; A kind of Gao Zhiju gearbox designs is provided; It is little to have volume; Light weight, compact structure, the advantage that bearing capacity is big, transmission efficiency is high, motion is steady, the ability of shock resistance and vibration is strong, input output are coaxial, cost is low.
For realizing above-mentioned purpose; The technological scheme of the utility model is the speed reducer dedicated structure of a kind of garden instrument of design; Comprise casing; It is characterized in that the place, inlet opening in said casing is provided with and the friction tight one-level sun gear of machine shaft, on the casing of said one-level sun gear periphery, is provided with ring gear; Evenly be engaged with some primary planet pinions between said one-level sun gear and ring gear; Said one-level sun gear is provided with primary planet carrier in the side away from the inlet opening, is provided with the one-level coupling shaft at said primary planet pinion center and drives the primary planet carrier rotation, and said primary planet carrier is provided with secondary sun gear in the side away from the inlet opening; Evenly be engaged with some third-level planetary gears between said secondary sun gear and ring gear; Said secondary sun gear is provided with two in the side away from the inlet opening, the third-level planetary frame, is provided with at said secondary planetary gear center that the secondary coupling shaft drives two, the third-level planetary frame rotates, said casing be provided with stretch out the casing output terminal two, active of third-level planetary frame; Said sun gear, ring gear, star gear are helical gear or are the helical tooth opinion, and institute's book gear is the hard flank of tooth.
Wherein, on said primary planet carrier, be provided with the axis hole that the power supply machine rotating shaft is stretched into.
The output terminal of said two, third-level planetary frame and machine shaft are on same axis.
Said secondary sun gear and primary planet carrier are structure as a whole.
The advantage and the beneficial effect of the utility model are: the speed reducer dedicated structure of this garden instrument; Utilizing the planetary pinion transmission to have power dividing constitutes the transmission of coaxial line formula and reasonably uses internal gear pair with each central gear; And several planet wheels that around central gear, distributing equably to share jointly the structure of load; Making garden instrument, speed reducer dedicated to have a volume little; Light weight, compact structure, a series of advantage such as bearing capacity is big, transmission efficiency is high, motion is steady, the ability of shock resistance and vibration is strong, input output are coaxial, cost is low.
Description of drawings
Fig. 1 is the speed reducer dedicated structural representation of the utility model garden instrument;
Fig. 2 is an I place partial enlarged drawing among Fig. 1.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the embodiment of the utility model is further described.Following examples only are used for more clearly explaining the technological scheme of the utility model, and can not limit the protection domain of the utility model with this.
As depicted in figs. 1 and 2; Be the utility model Gao Zhiju gearbox designs; Comprise casing 1, the place, inlet opening in the casing is provided with the one-level sun gear 2 with the machine shaft close-fitting, and one-level sun gear 2 peripheral casings are provided with ring gear 3; 3 of one-level sun gear 2 and ring gears evenly are engaged with some primary planet pinions 4; Said one-level sun gear is provided with primary planet carrier 5 away from a side of inlet opening, and primary planet pinion 4 centers are provided with one-level coupling shaft 41 and drive primary planet carrier 5 rotations, and said primary planet carrier 5 is provided with secondary sun gear 6 away from a side of inlet opening; Secondary sun gear and one-level planetary wheel carrier are structure as a whole; 3 of secondary sun gear 6 and ring gears evenly are engaged with some secondary planetary gears 7, secondary sun gear 6 away from a side of inlet opening be provided with two, third-level planetary frame 8, secondary planetary gear 7 centers are provided with that secondary coupling shaft 71 drives two, third-level planetary frame 8 rotates; Two, third-level planetary frame 8 is active is erected on the casing and is provided with the output terminal 81 that stretches out casing,, the output terminal of third-level planetary frame and machine shaft be on same axis.Said primary planet carrier 5 also is provided with the axis hole 51 that the power supply machine rotating shaft is stretched into, and is used for the active switching of machine shaft and primary planet carrier, makes the primary planet carrier operation more stable.01 is motor among the figure, and 02 is machine shaft, and 10 is the Gao Zhiju sprocket wheel, and 11 is the Gao Zhiju chain, and sprocket wheel 10 is installed in two, on the output terminal 81 of third-level planetary frame 8, and sprocket wheel 10 drives chains 11 and carries out cutting work; Said sun gear, ring gear, star gear are helical gear or are the helical tooth opinion, and institute's book gear is the hard flank of tooth.
Drive primary planet pinion 4 rotations by the one-level sun gear 2 of close-fitting on motor shaft 02 during the work of the utility model Gao Zhiju gearbox designs, primary planet pinion 4 produces revolution through ring gear 3 again, thereby drives primary planet carrier 5 rotations; Drive secondary planetary gears 7 rotations by the secondary sun gear on the primary planet carrier 56 again, secondary planetary gear 7 produces through ring gear 3 again and revolves round the sun: thus drive two, 8 rotations of third-level planetary frame; Two, third-level planetary frame 8 drives sprocket wheel 10 rotations, and sprocket wheel 10 drives chains 11 and carries out cutting work.
The above only is the preferred implementation of the utility model; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model know-why, can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (4)
1. speed reducer dedicated structure of garden instrument; Comprise casing; It is characterized in that the place, inlet opening in said casing is provided with and the friction tight one-level sun gear of machine shaft, on the casing of said one-level sun gear periphery, is provided with ring gear; Evenly be engaged with some primary planet pinions between said one-level sun gear and ring gear; Said one-level sun gear is provided with primary planet carrier in the side away from the inlet opening, is provided with the one-level coupling shaft at said primary planet pinion center and drives the primary planet carrier rotation, and said primary planet carrier is provided with secondary sun gear in the side away from the inlet opening; Evenly be engaged with some third-level planetary gears between said secondary sun gear and ring gear; Said secondary sun gear is provided with two in the side away from the inlet opening, the third-level planetary frame, be provided with the secondary coupling shaft at said secondary planetary gear center and drive the secondary planet frame and rotate, said casing be provided with stretch out the casing output terminal two, active of third-level planetary frame; Said sun gear, ring gear, star gear are helical gear or are the helical tooth opinion, and said gear is the hard flank of tooth.
2. the speed reducer dedicated structure of garden instrument as claimed in claim 1 is characterized in that, on said primary planet carrier, is provided with the axis hole that the power supply machine rotating shaft is stretched into.
3. according to claim 1 or claim 2 colleges and universities saws gearbox designs is characterized in that, the output terminal of said two, third-level planetary frame and machine shaft are on same axis.
4. according to claim 1 or claim 2 Gao Zhiju gearbox designs is characterized in that said secondary sun gear and primary planet carrier are structure as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203394878U CN202441816U (en) | 2011-09-08 | 2011-09-08 | Decelerator structure for gardening tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203394878U CN202441816U (en) | 2011-09-08 | 2011-09-08 | Decelerator structure for gardening tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202441816U true CN202441816U (en) | 2012-09-19 |
Family
ID=46823268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203394878U Expired - Fee Related CN202441816U (en) | 2011-09-08 | 2011-09-08 | Decelerator structure for gardening tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202441816U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106105803A (en) * | 2016-08-12 | 2016-11-16 | 宁波三叶工具有限公司 | A kind of pruner mechanical adjustable speed drive |
-
2011
- 2011-09-08 CN CN2011203394878U patent/CN202441816U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106105803A (en) * | 2016-08-12 | 2016-11-16 | 宁波三叶工具有限公司 | A kind of pruner mechanical adjustable speed drive |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120919 Termination date: 20130908 |