CN204755770U - Poor high accuracy cycloid gear reduction unit of few tooth - Google Patents
Poor high accuracy cycloid gear reduction unit of few tooth Download PDFInfo
- Publication number
- CN204755770U CN204755770U CN201520439940.0U CN201520439940U CN204755770U CN 204755770 U CN204755770 U CN 204755770U CN 201520439940 U CN201520439940 U CN 201520439940U CN 204755770 U CN204755770 U CN 204755770U
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- shaft
- eccentric
- gear piece
- cycloid gear
- cycloid
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Abstract
The utility model relates to a poor high accuracy cycloid gear reduction unit of few tooth, including input shaft, reduction gears and output shaft, the reduction gears includes ring gear, cycloid bits, does holder and eccentric shaft, the cycloid bits through first eccentric subassembly eccentric settings on the input shaft, the holder includes that two keep end cover and spliced pole, and the spliced pole link bit is in keeping the end cover, the eccentric shaft passes the tooth shaft hole, eccentric shaft and cycloid bits wear to set up the eccentric subassembly of second between the tooth shaft hole, two keep having offered respectively on the end cover chuan gai shaft hole, set up third off -centre subassembly between the both ends of eccentric shaft and the chuangai shaft hole that keeps the end cover, the utility model discloses a cycloid gear reduction unit is small, and each slows down and can realize the close -fitting between the part, improves the precision of whole speed reducer to can realize high drive ratio.
Description
Technical field
The utility model relates to a kind of few teeth difference highi degree of accuracy cycloidal gear speed reducer.
Background technique
At existing planetary speed reducer cycloidal planetary gear speed reducer used on the market, volume is all larger, larger space can be occupied in the process used, especially in cycloidal planetary gear speed reducer, cycloid wheel in speed reducer and the needle roller in outer ring match motion, easily there is larger gap in the cooperation between this cycloid wheel and needle roller, close-fitting cannot be realized, some running clearances can be there are, due to the existence of these running clearances, along with cycloidal planetary gear speed reducer rotates the deceleration precision that can affect speed reducer for a long time.
Secondly, conventional planetary speed reducer cycloidal planetary gear speed reducer cannot realize high transmission ratio.
Model utility content
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, provides a kind of few teeth difference highi degree of accuracy cycloidal gear speed reducer.
The utility model solves the technological scheme that its technical problem adopts: a kind of few teeth difference highi degree of accuracy cycloidal gear speed reducer, and comprise input shaft, reducing gear and output shaft, described reducing gear connects input shaft and output shaft respectively; Described reducing gear comprise gear ring, at least 1 cycloid gear piece being positioned at gear ring, do rotation retainer and at least one is for coordinating with cycloid gear piece and driving retainer to do the eccentric shaft of rotation, described output shaft is fixedly connected with retainer;
Described cycloid gear piece is eccentrically set on input shaft through the first offset assembly, and described cycloid gear piece is cooked eccentric rotary with input shaft rotation in gear ring; Described retainer comprises two maintenance end caps and at least 2 for connecting the attachment post of two maintenance end caps, and described two keep end caps to lay respectively at the both sides of cycloid gear piece; What described cycloid gear piece offers respectively at least 2 post perforation of passing for attachment post and at least 1 passes for eccentric shaft wears tooth axis hole, each described attachment post is each passed through post perforation and connects the maintenance end cap being positioned at cycloid tooth sheet both sides respectively, described attachment post have between boring a hole with post prevent from contacting with cycloid gear piece dodge gap;
Described eccentric shaft is through wearing tooth axis hole and connecting the maintenance end cap laying respectively at cycloid gear piece both sides, described eccentric shaft and wearing between tooth axis hole of described cycloid gear piece arrange the second offset assembly, described two keep end caps offer respectively and wear lid axis hole for what connect eccentric shaft two ends, and two ends and the wearing between lid axis hole of described maintenance end cap of described eccentric shaft arrange three eccentricity assembly;
During work, described input shaft drives described cycloid gear piece to do eccentric rotary in gear ring, rely on the tooth between cycloid gear piece and gear ring poor, described cycloid gear piece is revolved round the sun and spinning motion in gear ring simultaneously, described eccentric shaft is through the effect of described cycloid gear piece rotation power, described in transmission, retainer does rotation movement in gear ring, and the rotation through described retainer drives described output shaft to rotate.
Further, the quantity of described cycloid gear piece is 2, and cycloid gear piece described in two is phase difference 180 ° on input shaft, and wear tooth axis hole and post on cycloid gear piece described in two are bored a hole corresponding setting.
Further, described offset assembly comprises eccentric wheel and bearing, and described eccentric wheel is arranged in the inner ring of bearing;
Described input shaft through the linkage structure between the first offset assembly and cycloid gear piece is: the first described eccentric wheel is fixedly installed on input shaft, described clutch shaft bearing is socketed in the first eccentric outside, and described clutch shaft bearing is fixedly installed in the endoporus of cycloid gear piece;
Described eccentric shaft through the structure of wearing tooth shaft hole matching of the second offset assembly and cycloid gear piece is: the second described eccentric wheel is fixedly installed on eccentric shaft, the second described bearing housing is connected on the second eccentric outside, and the second described bearing is fixedly installed on to be worn in tooth axis hole;
Described eccentric shaft through three eccentricity assembly with keeping the lid shaft hole matching structure of wearing of end cap is: described three eccentricity takes turns the two ends being fixedly installed on eccentric shaft, described 3rd bearing housing is connected on the 3rd Bearing outer, and the 3rd described bearing is fixedly installed on wearing in lid axis hole of maintenance end cap.
Further, described input shaft is in the linkage structure between the first offset assembly and cycloid gear piece, the endoporus of described clutch shaft bearing excessively coordinates or interference fit with adopting between the first eccentric wheel, and the outer ring of described clutch shaft bearing excessively coordinates or interference fit with adopting between cycloid gear piece endoporus;
Described eccentric shaft is worn in the structure of tooth shaft hole matching through the second offset assembly and cycloid gear piece, the second described eccentric wheel excessively coordinates or interference fit with adopting between eccentric shaft, the inner ring of described second bearing excessively coordinates or interference fit with adopting between the second eccentric wheel, and the outer ring of described second bearing excessively coordinates or interference fit with wearing to adopt between tooth axis hole;
Described eccentric shaft through three eccentricity assembly with keep end cap wear in lid shaft hole matching structure, described three eccentricity wheel excessively coordinates or interference fit with adopting between eccentric shaft, the inner ring of described 3rd bearing adopts between taking turns with three eccentricity and excessively coordinates or interference fit, and the outer ring of described 3rd bearing excessively coordinates or interference fit with wearing to adopt between lid axis hole.
Further, the quantity of described cycloid gear piece upper prop perforation is 4, and the quantity of described cycloid gear piece being worn tooth axis hole is 4, and described post is bored a hole and worn tooth axis hole on cycloid gear piece in circumferential spaced apart;
The quantity of described attachment post is 4, and described maintenance end cap is 4 for the post holes quantity of attachment post, and the quantity of described maintenance end cap being worn lid axis hole is 4, and described lid axis hole and the post holes circumference of wearing is distributed on and keeps on end cap.
Further, linkage structure between described output shaft and retainer is: also comprise a land, described attachment post is hollow-core construction, described land and output shaft lay respectively at the both sides of cycloid gear piece group, be fixedly connected with land after screw bolt passes output shaft, attachment post, realize output shaft to be fixedly connected with retainer.
Further, described input shaft is splined shaft, and the first described eccentric wheel offers splined hole, and described splined shaft realizes being connected with the first eccentric close-fitting with input shaft through splined hole.
Further, also comprise stepper motor, arrange coupling between the motor shaft of described stepper motor and input shaft, described motor shaft is connected through shaft coupling transmission with between input shaft.
Further, also comprise the decelerator body, described output shaft, through the decelerator body, is provided with output bearing between described output shaft and the decelerator body.
The beneficial effects of the utility model are: cycloidal gear speed reducer volume of the present utility model is little, can realize close-fitting, improve the precision of whole speed reducer, and can realize high transmission ratio between each deceleration component.
Coordinate between cycloid tooth and gear ring, the tooth that can control between the two is poor, and then can improve the velocity ratio of speed reducer, realizes high transmission ratio.
Splined shaft (i.e. input shaft) coordinates with the first eccentric splined hole, improve the stability connected between the first eccentric wheel and input shaft, and the replaceable structure between the first eccentric wheel and input shaft, the gap coordinated between cycloidal gear and gear ring can be regulated by the eccentric wheel changing different size throw of eccentric, thus control quality of fit, avoid drive gap to affect the transmission accuracy of speed reducer.
Whole speed reducer except gear ring and cycloid gear piece engage be have gap transmission except, remaining part all can realize gapless driving, and the back lash of gear ring and cycloid gear piece can be appropriately adjusted by the first eccentric throw of eccentric, reduce the back lash of gear ring and cycloid gear piece, to improve the output accuracy of speed reducer as far as possible.
Input shaft adopts double cycloid gear piece coordinate with between gear ring, cycloid gear piece and input shaft operation stability can be improved, and then also improve the precision of the utility model speed reducer.
Eccentric shaft with cycloid gear piece and keep end cap to coordinate, can reduce wearing tooth axis hole and keeping the friction of wearing between lid axis hole of end cap of eccentric shaft and cycloid gear piece through each offset assembly like this; Secondly, eccentric wheel in offset assembly excessively coordinates or interference fit with adopting between eccentric shaft, bearing inner race in offset assembly excessively coordinates or interference fit with between eccentric shaft, bearing outer ring excessively coordinates or interference fit with wearing lid axis hole and wear to adopt between tooth axis hole, achieve eccentric shaft and cycloid gear piece and keep the close-fitting between end cap, improve the transmission accuracy of whole speed reducer.
Output shaft connects the Placement of the land on opposite through bolt through the attachment post of hollow-core construction, can improve join strength between output shaft and retainer, improves the stability of output shaft rotation.
Example sentence transmission between the cycloid gear piece of internal messing and retainer have employed the offset assembly of blind-mate, and the output accuracy of speed reducer entirety is improved greatly, and moment transmission is more steady, and noise reduces.
Speed reducer of the present utility model, primary speed-down reduction speed ratio can reach 30:1, is 2-3 times of planet-gear speed reducer.Needing the occasion of big retarding ratio, can simplified structure greatly.
Speed reducer of the present utility model, except gear ring belongs to except friction driving with engaging of cycloid gear piece, remaining part is all rolling transmission, improves the moment transmission efficiency of whole speed reducer, also improves working life simultaneously.
Speed reducer of the present utility model, compact overall structure, the ends such as volume is the 2/3-1/2 of accurate planetary speed reducer, alleviates speed reducer weight, saves the installing space of speed reducer, is applicable to mechanism hand, robot drive.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further illustrated.
Fig. 1 is the explosive view of the utility model cycloidal gear speed reducer;
Fig. 2 is the schematic diagram of cycloid gear piece;
Fig. 3 is output shaft, land and retainer connect into overall schematic diagram;
Fig. 4 is the schematic diagram of reducing gear;
Fig. 5 is the stereogram of Fig. 4;
Wherein, 1, gear ring, 2, cycloid gear piece, 21, tooth axis hole is worn, 22, post perforation, 3, input shaft, 4, output shaft, 5, keep end cap, 51, wear lid axis hole, 6, attachment post, 7, eccentric shaft, the 8, first offset assembly, 9, the second offset assembly, 10, three eccentricity assembly, 11, land, 12, stepper motor, 13, the decelerator body.
Embodiment
By reference to the accompanying drawings the utility model is further described now.The schematic diagram that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, and therefore it only shows the formation relevant with the utility model.
As shown in Figures 1 to 5, a kind of few teeth difference highi degree of accuracy cycloidal gear speed reducer, comprise input shaft 3, reducing gear and output shaft 4, reducing gear connects input shaft 3 and output shaft 4 respectively; Reducing gear comprise gear ring 1, at least 1 be positioned at gear ring 1 cycloid gear piece 2, do rotation retainer and at least one is for coordinating with cycloid gear piece 2 and driving retainer to do the eccentric shaft 7 of rotation, output shaft 4 is fixedly connected with retainer.
Cycloid gear piece 2 is eccentrically set on input shaft 3 through the first offset assembly 8, and cycloid gear piece 2 rotates with input shaft 3 do eccentric rotary in gear ring 1; Retainer comprises two maintenance end caps 5 and at least 2 and keeps end cap 5 to lay respectively at the both sides of cycloid gear piece 2 for the attachment post 6, two connecting two maintenance end caps 5; What cycloid gear piece 2 offers respectively at least 2 post perforation 22 of passing for attachment post 6 and at least 1 passes for eccentric shaft 7 wears tooth axis hole 21, each attachment post 6 is each passed through post perforation 22 and connects respectively and is positioned at the maintenance end cap 5 of cycloid tooth sheet 2 both sides, attachment post 6 and post bore a hole to have between 22 prevent from contacting with cycloid gear piece 2 dodge gap.
Eccentric shaft 7 is through wearing tooth axis hole 21 and connecting the maintenance end cap 5 laying respectively at cycloid gear piece 2 both sides, eccentric shaft 7 and wearing between tooth axis hole 21 of cycloid gear piece 2 arrange the second offset assembly 9, two keep end caps 5 offer respectively and wear lid axis hole 51 for what connect eccentric shaft 7 two ends, the two ends of eccentric shaft 7 and keep wearing between lid axis hole 51 of end cap 5 to arrange three eccentricity assembly 10.
For improving the stability that cycloid gear piece 2 and input shaft 3 operate in gear ring 1, the quantity of cycloid gear piece 2 is 2, and two cycloid gear pieces 2 are phase difference 180 ° on input shaft 3, and wear tooth axis hole 21 and post on two cycloid gear pieces 2 are bored a hole 22 corresponding settings.
Offset assembly comprises eccentric wheel and bearing, and eccentric wheel is arranged in the inner ring of bearing.
Therefore, input shaft 3 through the linkage structure between the first offset assembly 8 and cycloid gear piece 2 is: the first eccentric wheel is fixedly installed on input shaft 3, and clutch shaft bearing is socketed in the first eccentric outside, and clutch shaft bearing is fixedly installed in the endoporus of cycloid gear piece 2; Along with the rotation of input shaft 3, drive two cycloid gear pieces 2 in gear ring 1, do cycloid to rotate, and, in this linkage structure, the endoporus of clutch shaft bearing excessively coordinates or interference fit with adopting between the first eccentric wheel, and the outer ring of clutch shaft bearing excessively coordinates or interference fit with adopting between cycloid gear piece 2 endoporus.By excessively to coordinate or interference fit can improve transmission accuracy between input shaft 3 and cycloid gear piece 2.
Eccentric shaft 7 through the structure that tooth axis hole 21 coordinates of wearing of the second offset assembly 9 and cycloid gear piece 2 is: the second eccentric wheel is fixedly installed on eccentric shaft 7, and the second bearing housing is connected on the second eccentric outside, and the second bearing is fixedly installed on to be worn in tooth axis hole 21; In the structure shown here, adopt between second eccentric wheel with eccentric shaft 7 and excessively coordinate or interference fit, the inner ring of the second bearing excessively coordinates or interference fit with adopting between the second eccentric wheel, and the outer ring of the second bearing excessively coordinates or interference fit with wearing to adopt between tooth axis hole 21.By excessively to coordinate or interference fit can improve transmission accuracy between eccentric shaft 7 and cycloid gear piece 2.
Eccentric shaft 7 through three eccentricity assembly 10 with keeping lid axis hole 51 cooperating structure of wearing of end cap 5 is: three eccentricity takes turns the two ends being fixedly installed on eccentric shaft 7,3rd bearing housing is connected on the 3rd Bearing outer, and the 3rd bearing is fixedly installed on wearing in lid axis hole 51 of maintenance end cap 5.In the structure shown here, three eccentricity wheel excessively coordinates or interference fit with adopting between eccentric shaft 7, the inner ring of the 3rd bearing adopts between taking turns with three eccentricity and excessively coordinates or interference fit, and the outer ring of the 3rd bearing excessively coordinates or interference fit with wearing to adopt between lid axis hole 51.By excessively to coordinate or interference fit can improve eccentric shaft 7 and keep the transmission accuracy between end cap 5.
In the present embodiment, the quantity of cycloid gear piece 2 upper prop perforation 22 is 4, and the quantity of cycloid gear piece 2 being worn tooth axis hole 21 is 4, and post perforation 22 is that circumference is spaced apart with wearing tooth axis hole 21 on cycloid gear piece 2; The quantity of attachment post 6 is 4, keeps the post holes quantity for attachment post 6 on end cap 5 to be 4, keeps the quantity of end cap 5 being worn lid axis hole 51 to be 4, wears lid axis hole 51 and post holes circumference and is distributed on and keeps on end cap 5.
Whole retainer links together through the maintenance end cap 5 of 4 attachment posts 6 by both sides, and the rotation of cycloid gear piece 2 drives retainer to do rotation through eccentric shaft 7.
Linkage structure between output shaft 4 and retainer is: also comprise a land 11, attachment post 6 is hollow-core construction, land 11 and output shaft 4 lay respectively at the both sides of cycloid gear piece 2 groups, be fixedly connected with land 11 after screw bolt passes output shaft 4, attachment post 6, realize output shaft 4 to be fixedly connected with retainer.This Placement, can improve join strength between output shaft 4 and retainer, improves the stability that output shaft 4 rotates.
Input shaft 3 is splined shaft, and the first eccentric wheel offers splined hole, and splined shaft realizes being connected with the first eccentric close-fitting with input shaft 3 through splined hole.Placement between splined shaft and the first eccentric wheel, can improve the stability of connection.
In speed reducer of the present utility model, front end also comprises stepper motor 12, arranges coupling, be connected between motor shaft with input shaft 3 through shaft coupling transmission between the motor shaft of stepper motor 12 and input shaft 3.Rearward end also comprises the decelerator body 13, and output shaft 4, through the decelerator body 13, is provided with output bearing between output shaft 4 and the decelerator body 13.
During work, the motor shaft band driven input shaft 3 (i.e. splined shaft) of stepper motor 12 rotates, splined shaft drives two cycloid gear pieces 2 in gear ring 1, do cycloid through two the first offset assemblies 8 respectively and rotates, not only cycloid gear piece 2 revolves round the sun but also do rotation in gear ring 1, cycloid gear piece 2 is arranged eccentric shaft 7, by eccentric shaft 7, the rotation of cycloid gear piece 2 is driven retainer rotation together; Arrange the second offset assembly 9 respectively between eccentric shaft 7 and two cycloid gear pieces 2, eccentric shaft 7 and two keeps arranging three eccentricity assembly 10 respectively between end cap 5, by the excessive cooperation in offset assembly or interference fit, improves precision during eccentric shaft 7 transmission; Along with retainer does rotation, the output shaft 4 connected with retainer also together with rotate.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this model utility technological thought, can carry out various change and amendment completely.The technical scope of this model utility is not limited to the content on specification, must determine its technical scope according to right.
Claims (9)
1. a few teeth difference highi degree of accuracy cycloidal gear speed reducer, is characterized in that, comprises input shaft (3), reducing gear and output shaft (4), and described reducing gear connects input shaft (3) and output shaft (4) respectively; Described reducing gear comprise gear ring (1), at least 1 cycloid gear piece (2) being positioned at gear ring (1), do rotation retainer and at least one is for coordinating with cycloid gear piece (2) and driving retainer to do the eccentric shaft (7) of rotation, described output shaft (4) is fixedly connected with retainer;
Described cycloid gear piece (2) is eccentrically set on input shaft (3) through the first offset assembly (8), and described cycloid gear piece (2) is cooked eccentric rotary with input shaft (3) rotation in gear ring (1); Described retainer comprises two maintenance end caps (5) and at least 2 for connecting the attachment post (6) of two maintenance end caps (5), and described two keep end cap (5) to lay respectively at the both sides of cycloid gear piece (2); What described cycloid gear piece (2) offers respectively at least 2 posts perforation (22) passed for attachment post (6) and at least 1 passes for eccentric shaft (7) wears tooth axis hole (21), each described attachment post (6) is each passed through post perforation (22) and connects the maintenance end cap (5) being positioned at cycloid tooth sheet (2) both sides respectively, described attachment post (6) bore a hole with post to have between (22) prevent from contacting with cycloid gear piece (2) dodge gap;
Described eccentric shaft (7) is through wearing tooth axis hole (21) and connecting the maintenance end cap (5) laying respectively at cycloid gear piece (2) both sides, described eccentric shaft (7) and wearing between tooth axis hole (21) of described cycloid gear piece (2) arrange the second offset assembly (9), described two keep end cap (5) offer respectively and wear lid axis hole (51) for what connect eccentric shaft (7) two ends, two ends and the wearing between lid axis hole (51) of described maintenance end cap (5) of described eccentric shaft (7) arrange three eccentricity assembly (10),
During work, described input shaft (3) drives described cycloid gear piece (2) to do eccentric rotary in gear ring (1), rely on the tooth between cycloid gear piece (2) and gear ring (1) poor, described cycloid gear piece (2) is revolved round the sun and spinning motion in gear ring (1) simultaneously, described eccentric shaft (7) is through the effect of described cycloid gear piece (2) rotation power, retainer described in transmission does rotation movement in gear ring (1), and the rotation through described retainer drives described output shaft (4) to rotate.
2. few teeth difference highi degree of accuracy cycloidal gear speed reducer according to claim 1, it is characterized in that, the quantity of described cycloid gear piece (2) is 2, cycloid gear piece (2) described in two is at the upper phase difference 180 ° of input shaft (3), and wear tooth axis hole (21) and post on cycloid gear piece (2) described in two are bored a hole (22) corresponding setting.
3. few teeth difference highi degree of accuracy cycloidal gear speed reducer according to claim 2, it is characterized in that, described offset assembly comprises eccentric wheel and bearing, and described eccentric wheel is arranged in the inner ring of bearing;
Described input shaft (3) through the linkage structure between the first offset assembly (8) and cycloid gear piece (2) is: the first described eccentric wheel is fixedly installed on input shaft (3), described clutch shaft bearing is socketed in the first eccentric outside, and described clutch shaft bearing is fixedly installed in the endoporus of cycloid gear piece (2);
Described eccentric shaft (7) through the structure that tooth axis hole (21) coordinates of wearing of the second offset assembly (9) and cycloid gear piece (2) is: the second described eccentric wheel is fixedly installed on eccentric shaft (7), the second described bearing housing is connected on the second eccentric outside, and the second described bearing is fixedly installed on to be worn in tooth axis hole (21);
Described eccentric shaft (7) through three eccentricity assembly (10) with keeping lid axis hole (51) cooperating structure of wearing of end cap (5) is: described three eccentricity takes turns the two ends being fixedly installed on eccentric shaft (7), described 3rd bearing housing is connected on the 3rd Bearing outer, and the 3rd described bearing is fixedly installed on wearing in lid axis hole (51) of maintenance end cap (5).
4. few teeth difference highi degree of accuracy cycloidal gear speed reducer according to claim 3, it is characterized in that, described input shaft (3) is in the linkage structure between the first offset assembly (8) and cycloid gear piece (2), the endoporus of described clutch shaft bearing excessively coordinates or interference fit with adopting between the first eccentric wheel, and the outer ring of described clutch shaft bearing excessively coordinates or interference fit with adopting between cycloid gear piece (2) endoporus;
Described eccentric shaft (7) is worn in the structure that tooth axis hole (21) coordinates through the second offset assembly (9) and cycloid gear piece (2), adopt between the second described eccentric wheel with eccentric shaft (7) and excessively coordinate or interference fit, the inner ring of described second bearing excessively coordinates or interference fit with adopting between the second eccentric wheel, and the outer ring of described second bearing excessively coordinates or interference fit with wearing to adopt between tooth axis hole (21);
Described eccentric shaft (7) through three eccentricity assembly (10) with keep end cap (5) wear in lid axis hole (51) cooperating structure, described three eccentricity wheel excessively coordinates or interference fit with adopting between eccentric shaft (7), the inner ring of described 3rd bearing adopts between taking turns with three eccentricity and excessively coordinates or interference fit, and the outer ring of described 3rd bearing excessively coordinates or interference fit with wearing to adopt between lid axis hole (51).
5. few teeth difference highi degree of accuracy cycloidal gear speed reducer according to claim 1, it is characterized in that, the quantity of described cycloid gear piece (2) upper prop perforation (22) is 4, the quantity of described cycloid gear piece (2) being worn tooth axis hole (21) is 4, and described post is bored a hole (22) and worn tooth axis hole (21) upper at cycloid gear piece (2) is that circumference is spaced apart;
The quantity of described attachment post (6) is 4, post holes quantity for attachment post (6) on described maintenance end cap (5) is 4, the quantity of described maintenance end cap (5) being worn lid axis hole (51) is 4, and described lid axis hole (51) and the post holes circumference of wearing is distributed on and keeps on end cap (5).
6. few teeth difference highi degree of accuracy cycloidal gear speed reducer according to claim 1, it is characterized in that, linkage structure between described output shaft (4) and retainer is: also comprise a land (11), described attachment post (6) is hollow-core construction, described land (11) and output shaft (4) lay respectively at the both sides that cycloid gear piece (2) is organized, screw bolt passes output shaft (4), attachment post (6) are fixedly connected with land (11) afterwards, realize output shaft (4) to be fixedly connected with retainer.
7. few teeth difference highi degree of accuracy cycloidal gear speed reducer according to claim 1, it is characterized in that, described input shaft (3) is splined shaft, the first described eccentric wheel offers splined hole, and described splined shaft realizes being connected with the first eccentric close-fitting with input shaft (3) through splined hole.
8. few teeth difference highi degree of accuracy cycloidal gear speed reducer according to claim 1, it is characterized in that, also comprise stepper motor (12), between the motor shaft of described stepper motor (12) and input shaft (3), coupling is set, is connected through shaft coupling transmission between described motor shaft with input shaft (3).
9. few teeth difference highi degree of accuracy cycloidal gear speed reducer according to claim 1, it is characterized in that, also comprise the decelerator body (13), described output shaft (4), through the decelerator body (13), is provided with output bearing between described output shaft (4) and the decelerator body (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520439940.0U CN204755770U (en) | 2015-06-24 | 2015-06-24 | Poor high accuracy cycloid gear reduction unit of few tooth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520439940.0U CN204755770U (en) | 2015-06-24 | 2015-06-24 | Poor high accuracy cycloid gear reduction unit of few tooth |
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| Publication Number | Publication Date |
|---|---|
| CN204755770U true CN204755770U (en) | 2015-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520439940.0U Expired - Fee Related CN204755770U (en) | 2015-06-24 | 2015-06-24 | Poor high accuracy cycloid gear reduction unit of few tooth |
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| CN (1) | CN204755770U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964000A (en) * | 2015-06-24 | 2015-10-07 | 常州市芯微电子有限公司 | Small-tooth-difference high-precision cycloid gear speed reducer |
-
2015
- 2015-06-24 CN CN201520439940.0U patent/CN204755770U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964000A (en) * | 2015-06-24 | 2015-10-07 | 常州市芯微电子有限公司 | Small-tooth-difference high-precision cycloid gear speed reducer |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 Termination date: 20180624 |