CN201053475Y - Three-crank planet cycloidal needle wheel reducer - Google Patents
Three-crank planet cycloidal needle wheel reducer Download PDFInfo
- Publication number
- CN201053475Y CN201053475Y CNU2007200963090U CN200720096309U CN201053475Y CN 201053475 Y CN201053475 Y CN 201053475Y CN U2007200963090 U CNU2007200963090 U CN U2007200963090U CN 200720096309 U CN200720096309 U CN 200720096309U CN 201053475 Y CN201053475 Y CN 201053475Y
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- pin
- crankshaft
- gear
- cycloidal
- axis hole
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Abstract
The utility model relates to a three-crank planetary cycloidal-pin gear speed reducer, which is characterized in that: the inside of the central axle hole of a circular frame is provided with a vertical output shaft; the upper end of the frame is provided with a pin wheel housing with a wheel pin; the upper end of the wheel pin is provided with an end cap with a vertical central axle hole; the inside of the vertical central axle hole of the end cap is provided with an input shaft; the circumference of the internal end of the output shaft of the frame is evenly distributed with a plurality of rigid pin shafts; the upper end of each rigid pin shaft is provided with a rigid disc; each rigid pin shaft is provided with an upper cycloidal gear and a lower cycloidal gear meshing with the wheel pin; the circumferences of the end faces of the upper cycloidal gear and the lower cycloidal gear are evenly distributed with three corresponding axle holes; the insides of the corresponding axle holes of the upper cycloidal gear and the lower cycloidal gear are provided with crankshafts with an upper eccentric journal and a lower eccentric journal; both eccentric journals of each crankshaft are at a 180 degrees rotation angle; the upper end of the output shaft is provided with an axle hole matched with the lower end of each crankshaft, while each rigid disc is provided with an axle hole matched with the upper end of each crankshaft; the upper end of each crankshaft is provided with a planetary gear, while the internal end of the input shaft is provided with a sun gear meshing with each planetary gear at the same time. Therefore, the three crankshafts drive the cycloidal gears simultaneously to realize translatory motion, thereby improving bearing capacity; in addition, the utility model has the advantages of high speed ratio, impact resistance and less return difference.
Description
Technical field
The utility model belongs to speed reducer, particularly relates to a kind of three crank cycloidal planetary gear speed reducers.
Background technique
Speed reducer is widely used in mine, metallurgy, cement stirring, presses each field such as sugar, lifting transportation, water power plant and navigation boat, especially steel industry needs all that velocity ratio is big, output torque is big, reliable, shock resistance, retarding device that overload capacity is strong.Domestic known cycloidal planetary gear speed reducer structure is: the support that has output shaft, the pin wheel housing that has gear pin is installed on support, the end cap that has input shaft is installed on pin wheel housing, at inner circumferentially uniform several rigidity bearing pins that is equipped with of output shaft, the cycloid wheel that is meshed with gear pin is installed on the rigidity bearing pin, the capacity eccentric bearing that drives the cycloid wheel translation is installed in input shaft the inner of end cap.The input part of this structure speed reducer is to drive a crank (capacity eccentric bearing) by input shaft to drive cycloid wheel, therefore the bearing on this crank is to be in the high-speed overload situation, and the bearing pin of output is when stressed when big, easily produce crooked, even rupture, therefore restricted the bearing capacity of cycloid speed reducer.
Summary of the invention
The utility model provides a kind of three crank cycloidal planetary gear speed reducers that improve bearing capacity for solving the technical problem that exists in the known technology.
The technological scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
A kind of three crank cycloidal planetary gear speed reducers, comprise the support that has the vertical centre axis hole, be installed in the pin wheel housing that has gear pin of support upper end, be installed in the end cap that has the vertical centre axis hole of pin wheel housing upper end, be installed in the output shaft in the support vertical centre axis hole, circumferentially uniform several rigidity bearing pins that are installed in the output shaft upper end, the rigid disk that is connected with each rigidity bearing pin upper end, be installed in the cycloid wheel that is meshed with gear pin on the rigidity bearing pin, and the input shaft that is installed in the driving cycloid wheel translation in the end cap vertical centre axis hole is formed, described cycloid wheel has two up and down, the end face of cycloid wheel is circumferentially uniform up and down is shaped on three corresponding mutually axis holes, the crankshaft that has the two sections eccentric journal is installed in the corresponding axis hole of cycloid wheel up and down, two eccentric journals of each crankshaft are 180 ° of corners mutually, the output shaft upper end is shaped on the axis hole with crankshaft lower end coupling, be shaped on axis hole on the rigid disk with crankshaft upper end coupling, the upper end of each crankshaft all is equipped with planetary pinion, and the lower end of output shaft is equipped with simultaneously the central gear with each planetary pinion engagement.
Advantage and the good effect that the utlity model has are:
Because the crankshaft of three drivings is installed on cycloid wheel, each crankshaft upper end all is equipped with planetary pinion, central gear with each planetary pinion engagement is installed on input shaft simultaneously, make three cranks drive the cycloid wheel translation simultaneously, the damaged difficult problem of excessive, the easy gummed of shaft strength intensity when having solved a crankshaft drives cycloid wheel, the bearing pin of output shaft upper end has installed rigid disk additional in addition, having improved original output form is the flexible force-bearing situation of beam type bearing pin, thereby improved bearing capacity, its bearing capacity is 2～2.5 times of original structure; The utility model also has the advantage that speed ratio is big, shock-resistant, return difference is little in addition.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1, input shaft; 2, central gear; 3, planetary pinion; 4, crankshaft; 5, rigid disk; 6, cycloid wheel; 7, pin wheel housing; 8, rigidity bearing pin; 9, gear pin; 10, pin gear sleeve; 11, support; 12, output shaft; 13, eccentric journal; 14, eccentric journal; 15, cycloid wheel; 16, end cap.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1, support 11 is rounded, in the central vertical of support output shaft 12 is installed, and the pin wheel housing 7 of ring-type is installed in the upper end of support, the gear pin 9 that has pin gear sleeve 10 is installed in the pin wheel housing, the end cap 16 that has central shaft hole is installed in the upper end of pin wheel housing.Be installed on the output shaft of support circumferentially uniform several rigidity bearing pins 8 that is equipped with, a rigid disk 5 be installed, upper and lower two cycloid wheel 6,15 that are meshed with gear pin are installed on the rigidity bearing pin in each rigidity bearing pin upper end.The end face of upper and lower cycloid wheel is circumferentially uniform to be shaped on three corresponding mutually axis holes, in the corresponding axis hole of cycloid wheel up and down crankshaft 4 is installed, and is shaped on two sections eccentric journal 13,14 on the crankshaft, and two eccentric journals of each crankshaft are 180 ° of corners mutually.The output shaft upper end is shaped on the axis hole with crankshaft lower end coupling, be shaped on axis hole on the rigid disk with crankshaft upper end coupling, the upper end of each crankshaft all is equipped with planetary pinion 3, input shaft 1 is installed in the center hole of end cap, and the inner of input shaft is equipped with simultaneously the central gear 2 with each planetary pinion engagement.Like this, mesh simultaneously, do revolution motion, outputting power around input shaft 1 shaft axis thereby make three crankshafts 4 drive cycloid wheel 6 to same direction simultaneously by input shaft 1 drive central gear 2 and three planetary pinions 3 that are contained in crankshaft.Thereby improved inner force-bearing situation, made this speed reducer have that speed ratio is big, rigidity is shock-resistant greatly, return difference is few, bearing capacity is high, its bearing capacity is compared with the cycloid speed reducer of equal volume and is improved 2～3 times.
Because the utility model is to be the designed structure in basis with the cycloid speed reducer, equally also is applicable to the involute planetary gear drive mechanism.
Claims (1)
1. crank cycloidal planetary gear speed reducer, comprise the support that has the vertical centre axis hole, be installed in the pin wheel housing that has gear pin of support upper end, be installed in the end cap that has the vertical centre axis hole of pin wheel housing upper end, be installed in the output shaft in the support vertical centre axis hole, circumferentially uniform several rigidity bearing pins that are installed in the output shaft upper end, the rigid disk that is connected with each rigidity bearing pin upper end, be installed in the cycloid wheel that is meshed with gear pin on the rigidity bearing pin, and the input shaft that is installed in the driving cycloid wheel translation in the end cap vertical centre axis hole is formed, it is characterized in that: described cycloid wheel has two up and down, the end face of cycloid wheel is circumferentially uniform up and down is shaped on three corresponding mutually axis holes, the crankshaft that has the two sections eccentric journal is installed in the corresponding axis hole of cycloid wheel up and down, two eccentric journals of each crankshaft are 180 ° of corners mutually, the output shaft upper end is shaped on the axis hole with crankshaft lower end coupling, be shaped on axis hole on the rigid disk with crankshaft upper end coupling, the upper end of each crankshaft all is equipped with planetary pinion, and the inner of input shaft is equipped with simultaneously the central gear with each planetary pinion engagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200963090U CN201053475Y (en) | 2007-06-11 | 2007-06-11 | Three-crank planet cycloidal needle wheel reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200963090U CN201053475Y (en) | 2007-06-11 | 2007-06-11 | Three-crank planet cycloidal needle wheel reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201053475Y true CN201053475Y (en) | 2008-04-30 |
Family
ID=39393138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200963090U Expired - Fee Related CN201053475Y (en) | 2007-06-11 | 2007-06-11 | Three-crank planet cycloidal needle wheel reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201053475Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206495A (en) * | 2013-03-25 | 2013-07-17 | 洛阳沃德福工程技术有限公司 | Double-crank cycloidal pin wheel speed reducer |
| CN105023503A (en) * | 2015-08-03 | 2015-11-04 | 南京康尼机电股份有限公司 | High precision economic cycloidal pin-wheel reducer for teaching |
| CN105179602A (en) * | 2015-09-22 | 2015-12-23 | 天津天明科技有限公司 | Double-crank planet gear reducer |
| CN107366716A (en) * | 2017-08-08 | 2017-11-21 | 深圳先进技术研究院 | A kind of three-level reduction planetary decelerator, industrial robot |
| CN107882928A (en) * | 2017-12-13 | 2018-04-06 | 重庆大学 | A kind of compound cycloidal reducer |
| CN108999935A (en) * | 2018-08-16 | 2018-12-14 | 杨荣刚 | Accurate cycloid Roller speed reducer |
-
2007
- 2007-06-11 CN CNU2007200963090U patent/CN201053475Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206495A (en) * | 2013-03-25 | 2013-07-17 | 洛阳沃德福工程技术有限公司 | Double-crank cycloidal pin wheel speed reducer |
| CN105023503A (en) * | 2015-08-03 | 2015-11-04 | 南京康尼机电股份有限公司 | High precision economic cycloidal pin-wheel reducer for teaching |
| CN105179602A (en) * | 2015-09-22 | 2015-12-23 | 天津天明科技有限公司 | Double-crank planet gear reducer |
| CN107366716A (en) * | 2017-08-08 | 2017-11-21 | 深圳先进技术研究院 | A kind of three-level reduction planetary decelerator, industrial robot |
| CN107366716B (en) * | 2017-08-08 | 2019-05-07 | 深圳先进技术研究院 | A kind of three-level reduction planetary retarder, industrial robot |
| CN107882928A (en) * | 2017-12-13 | 2018-04-06 | 重庆大学 | A kind of compound cycloidal reducer |
| CN107882928B (en) * | 2017-12-13 | 2023-12-12 | 重庆大学 | Duplex cycloidal reducer |
| CN108999935A (en) * | 2018-08-16 | 2018-12-14 | 杨荣刚 | Accurate cycloid Roller speed reducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TIANJIN BAILI TIANXING TRANSMISSION CO., LTD. Free format text: FORMER OWNER: TIANJIN SPEED REDUCTORS CO., LTD. Effective date: 20130606 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 300161 HEDONG, TIANJIN TO: 300308 BINHAI NEW DISTRICT, TIANJIN |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130606 Address after: 300308, Tianjin Airport Logistics Processing Zone on the north side of the four road on the eastern side of latitude six (Tianbao, thermoelectric side) Patentee after: Tianjin Baili Tianxing Transmission Co., Ltd. Address before: 300161 Tianjin City Hedong District Weiguo Road No. 112 Patentee before: Tianjin Speed Reducer Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080430 Termination date: 20150611 |
|
| EXPY | Termination of patent right or utility model |