CN201377551Y - Planetary cycloidal reducer of cycloid output - Google Patents
Planetary cycloidal reducer of cycloid output Download PDFInfo
- Publication number
- CN201377551Y CN201377551Y CN200920012505U CN200920012505U CN201377551Y CN 201377551 Y CN201377551 Y CN 201377551Y CN 200920012505 U CN200920012505 U CN 200920012505U CN 200920012505 U CN200920012505 U CN 200920012505U CN 201377551 Y CN201377551 Y CN 201377551Y
- Authority
- CN
- China
- Prior art keywords
- output
- input
- external gear
- gear
- cycloid
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
- F16H2001/324—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear comprising two axially spaced, rigidly interconnected, orbital gears
Abstract
The utility model relates to a planetary cycloidal reducer of cycloid output. An input shaft in a circular shell is provided with an eccentric bushing and a balancing block, wherein the eccentric bushing is provided with a roller bearing; an input internal gear and a cycloid wheel with an input external gear and an output external gear which are homocentric are arranged in the shell, the center of the cycloid wheel is provided with a ball track of a roller, the input external gear and the input internal gear form input mesh with small teeth difference, an output device is provided with a circular supporting disc, the axis of one side of the supporting disc is provided with a bearing seat at the back end of the input shaft and the homocentric output internal gear, the axis of the other side of the supporting disc is provided with an output shaft extending out from a back-end cover, the output external gear and the output internal gear form output mesh with small teeth difference, the input small teeth difference is the same with the output small teeth difference, and the modules of the input internal gear, the input external gear, the output external gear and the output internal gear are the same. The planetary cycloidal reducer only has one cycloid output used for the eccentric bushing, and has the advantages of simpler structure, lower cost and large range of reduction ratio, and can carry out forward output and reverse output.
Description
Technical field
The utility model relates to the output unit of a kind of cycloidal planetary gear speed reducer, particularly a kind of cycloidal planetary gear speed reducer.
Background technique
Cycloidal planetary gear speed reducer is that a kind of reduction speed ratio is big, efficient is high, running is steady, input shaft and output shaft on same axis, the novel speed reducer of compact structure.Cycloidal planetary gear speed reducer has housing, input device is arranged in the housing, three parts of speed reducer and output unit, in the prior art, input device has input shaft, have dislocation two eccentric bushings of 180 ° on the input shaft, roller bearing (being called H mechanism) is housed on eccentric bushing, speed reducer has pin gear with internal tooth and the cycloid wheel with external tooth, there is the raceway of roller bearing on the eccentric bushing at the center of cycloid wheel, the pin-and-hole that is uniformly distributed along the circumference is arranged on the cycloid wheel, the pin gear of internal tooth is formed few tooth difference engagement with cycloid wheel cycloid wheel with external tooth and pin gear, output unit has the circular support dish, on the axis of supporting disk one side output shaft is arranged, opposite side is uniformly distributed along the circumference, the bearing pin that matches with the pin-and-hole that is uniformly distributed along the circumference on the cycloid wheel.Because cycloid wheel and pin gear are formed few tooth difference engagement, when the input shaft band the eccentric bushing rotation during one week, the existing revolution of cycloid wheel has spinning motion again, when input shaft just circled, eccentric bushing also just circled, the angle of a few tooth difference of reverse rotation when the cycloid wheel public affairs circle, thereby obtain slowing down, relend and help hole-pin output mechanism (being called the W output mechanism), the low speed spinning motion of cycloid wheel is passed to output shaft, thereby obtain lower output speed.
This cycloidal planetary gear speed reducer has following deficiency:
1. have dislocation two eccentric bushings of 180 ° on the input shaft of input device, the hole-pin output mechanism is one of key link of restriction retarder bearing capacity, major influence factors is flexural strength, the rigidity that contacts intensity, rigidity and bearing pin between bearing pin, pin-and-hole, its structure is complicated, and its design, manufacturing is pretty troublesome, processing cost is higher, influence system accuracy;
2. cycloidal planetary gear speed reducer is made up of input device, speed reducer and three parts of output unit, gear ratio is only relevant with the tooth difference of cycloid wheel and pin gear, reduction speed ratio is limited, if increase reduction speed ratio, also will increase by cover input device, speed reducer and an output unit;
3. can only be counter-rotating output, can not be designed to just transfer out, also will join reverse drive gear in addition what some need just transfer out.
Summary of the invention
The purpose of this utility model is in order to overcome above-mentioned deficiency, proposes that a kind of structure is simple, the one-level gear ratio is bigger, both can be designed to just transferring out and also can be designed to reverse the planet cycloid speed reducer of cycloid output of output.
The utility model is realized with the following method.
The planet cycloid speed reducer of cycloid output has housing, and input device, speed reducer and three parts of output unit are arranged in the housing,
Input device has the input shaft that inserts housing, the equilibrium block that eccentric bushing and eccentric bushing are arranged on the input shaft, roller bearing is housed on the eccentric bushing, speed reducer has the input internal gear in circular front case and has concentric input external gear and the cycloid wheel of output external gear, there is the raceway of roller bearing on the eccentric bushing at the center of cycloid wheel, the input external gear is formed the few tooth difference engagement of input with the input internal gear, output unit has the circular support dish, the bearing support of input shaft rear end and concentric output inner gear are arranged on the axis of supporting disk one side, on the axis of supporting disk opposite side output shaft is arranged, output shaft stretches out from rear end cover, output external gear and output inner gear are formed the few tooth difference engagement of output, the few tooth difference of above-mentioned input is identical with the few tooth difference of output, the input internal gear, the input external gear, the modulus of output external gear and output inner gear is identical.
The utility model is formed few tooth difference engagement of input and output external gear and output inner gear by input external gear and input internal gear and is formed the few tooth difference engagement of output.During use, the few tooth difference of input of forming input external gear and input internal gear meshes identical with cycloidal planetary gear speed reducer in the prior art, when input shaft just circles, eccentric bushing also rotates a week, thereby cycloid wheel turns over the angle of a tooth difference and obtains the cycloid wheel deceleration on opposite direction, and the output external gear of cycloid wheel and output inner gear are formed the few tooth difference engagement of output, and the rotation postive direction after output inner gear can slow down cycloid wheel is exported away.
The utility model meshes and can oppositely be slowed down the few tooth difference of input of rotation through importing external gear and input internal gear composition of input, and the engagement of tooth difference is lacked in the output that output external gear and output inner gear are formed can obtain the forward deceleration.The rotating speed that obtains exporting rotation is with to turn to the relative size with the input external gear external diameter of cycloid wheel and output external gear external diameter relevant.
When importing the external gear external diameter greater than output external gear external diameter, because the few tooth difference of input is identical with the few tooth difference of output, oppositely the tooth declinate (the tooth declinate is the pairing central angle of the arc length of tooth difference) of speed change is less than the tooth declinate of forward speed change, tooth declinate after the output is the algebraic sum of the tooth declinate of the tooth declinate of reverse speed change and forward speed change, this algebraic sum be on the occasion of, then Shu Chu rotation is the rotation of slowing down through forward
When importing the external gear external diameter less than output external gear external diameter, because the few tooth difference of input is identical with the few tooth difference of output, oppositely the tooth declinate of speed change is greater than the tooth declinate of forward speed change, tooth declinate after the output is the algebraic sum of the tooth declinate of the tooth declinate of reverse speed change and forward speed change, this algebraic sum is a negative value, and then Shu Chu rotation is the rotation through reverse deceleration.
When importing the external gear external diameter greater than output external gear external diameter, oppositely the algebraic sum of the tooth declinate of the tooth declinate of speed change and forward speed change be on the occasion of, the speed ratio of the big more forward speed change of the absolute value of this algebraic sum is more little, otherwise, the speed ratio of the more little forward speed change of the absolute value of this algebraic sum is big more, promptly import the external gear external diameter and differ big more with output external gear external diameter, the speed ratio of forward speed change is more little, otherwise, input external gear external diameter is approaching more with output external gear external diameter, and the speed ratio of forward speed change is big more, when input external gear external diameter and output external gear external diameter during approaching equating, output speed is approaching zero, the gear ratio approach infinity.
When importing the external gear external diameter less than output external gear external diameter, oppositely the algebraic sum of the tooth declinate of the tooth declinate of speed change and forward speed change is a negative value, the speed ratio of the big more reverse speed change of the absolute value of this algebraic sum is more little, otherwise, the speed ratio of the more little reverse speed change of absolute value of this algebraic sum is big more, promptly import the external gear external diameter and differ big more with output external gear external diameter, oppositely the speed ratio of speed change is more little, otherwise input external gear external diameter is approaching more with output external gear external diameter, and oppositely the speed ratio of speed change is big more, equally, when input external gear external diameter and output external gear external diameter when equating, output speed is approaching zero, the gear ratio approach infinity.
The utility model has been compared following advantage with the cycloidal planetary gear speed reducer in the above-mentioned prior art:
1. have only an eccentric bushing on the input shaft of input device, output unit is that the cycloid that output external gear and output inner gear are formed few tooth difference engagement is exported, and structure is simpler, and its design, manufacturing is easy to, processing cost is lower, system accuracy is higher;
2. reduction speed ratio of the present utility model not only with cycloid wheel on the input external gear relevant with the tooth difference between the input internal gear in the housing, also with cycloid wheel on the output external gear relevant with the tooth difference between the output inner gear, particularly with cycloid wheel on input external gear external diameter relevant with output external gear external diameter difference, only with cover input device, speed reducer and an output unit, pass through design of Structural Parameters, just can produce the speed reducer of any reduction speed ratio, the scope of reduction speed ratio is big;
3. by the structure and parameter design, can design, produce the speed reducer that is just transferring out, also can design, produce into the speed reducer of counter-rotating output.
Below in conjunction with accompanying drawing, the utility model is further described.
Description of drawings
Fig. 1 is the rough schematic view by the planet cycloid speed reducer of a kind of cycloid output of invention scheme proposition of the present utility model;
Fig. 2 is the main cross-sectional schematic by the planet cycloid speed reducer of a kind of cycloid output of invention scheme proposition of the present utility model;
Fig. 3 is the fractionation schematic representation of Fig. 2 by axis;
Fig. 4 is the rough schematic view of input external gear diameter less than the planet cycloid speed reducer of the cycloid output of output external gear diameter;
Fig. 5 is that schematic representation is looked on the left side of input shaft among Fig. 2;
Fig. 6 is that schematic representation is looked on the right side of input shaft among Fig. 2;
Fig. 7 is that schematic representation is looked on the right side of Fig. 2 middle shell;
Fig. 8 is that schematic representation is looked on the right side of cycloid wheel among Fig. 2;
Fig. 9 is that schematic representation is looked on the left side of supporting disk among Fig. 2;
Figure 10 is that schematic representation is looked on the left side of equilibrium block among Fig. 2;
Figure 11 is that schematic representation is looked on the left side of rear end cover among Fig. 2.
Embodiment
Among Fig. 1～Fig. 3, the planet cycloid speed reducer of cycloid output has housing 1, and input device, speed reducer and three parts of output unit are arranged in the housing,
Input device has the input shaft 2 that inserts housing, eccentric bushing 3 is arranged on the input shaft and be used for when rotating and the equilibrium block 4 of eccentric bushing balance, roller bearing 5 is housed on the eccentric bushing, speed reducer has the input internal gear 6 in circular front case and has concentric input external gear 7 and the cycloid wheel 9 of output external gear 8, the diameter of input external gear is greater than the diameter of output external gear, there is the raceway 10 of roller bearing on the eccentric bushing at the center of cycloid wheel, the input external gear is formed the few tooth difference engagement of input with the input internal gear, output unit has circular support dish 11, the bearing support 12 of input shaft rear end and concentric output inner gear 13 are arranged on the axis of supporting disk one side, output shaft 14 is arranged on the axis of supporting disk opposite side, output shaft stretches out from rear end cover 15, output external gear and output inner gear are formed the few tooth difference engagement of output, the few tooth difference of above-mentioned input is identical with the few tooth difference of output, the input internal gear, the input external gear, the modulus of output external gear and output inner gear is identical.
The diameter of the input external gear of the planet cycloid speed reducer cycloid wheel of above-mentioned cycloid output is greater than the diameter of output external gear, and the sense of rotation of input is identical with the sense of rotation of output.
If the diameter of the input external gear of cycloid wheel is less than the diameter of output external gear, the then direction of rotation of Shu Ru sense of rotation and output.
Among Fig. 4, input external gear 16 diameters are less than output external gear 17 diameters.
Claims (3)
1. the planet cycloid speed reducer of a cycloid output has housing, and input device, speed reducer and three parts of output unit are arranged in the housing, it is characterized in that:
Input device has the input shaft that inserts housing, the equilibrium block that eccentric bushing and eccentric bushing are arranged on the input shaft, roller bearing is housed on the eccentric bushing, speed reducer has the input internal gear in circular front case and has concentric input external gear and the cycloid wheel of output external gear, there is the raceway of roller bearing on the eccentric bushing at the center of cycloid wheel, the input external gear is formed the few tooth difference engagement of input with the input internal gear, output unit has the circular support dish, the bearing support of input shaft rear end and concentric output inner gear are arranged on the axis of supporting disk one side, on the axis of supporting disk opposite side output shaft is arranged, output shaft stretches out from rear end cover, output external gear and output inner gear are formed the few tooth difference engagement of output, the few tooth difference of above-mentioned input is identical with the few tooth difference of output, the input internal gear, the input external gear, the modulus of output external gear and output inner gear is identical.
2. by the planet cycloid speed reducer of the described cycloid output of claim 1, it is characterized in that: the diameter of the input external gear of described cycloid wheel is greater than the diameter of output external gear.
3. by the planet cycloid speed reducer of the described cycloid output of claim 1, it is characterized in that: the diameter of the input external gear of described cycloid wheel is less than the diameter of output external gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920012505U CN201377551Y (en) | 2009-03-30 | 2009-03-30 | Planetary cycloidal reducer of cycloid output |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920012505U CN201377551Y (en) | 2009-03-30 | 2009-03-30 | Planetary cycloidal reducer of cycloid output |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201377551Y true CN201377551Y (en) | 2010-01-06 |
Family
ID=41517659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920012505U Expired - Fee Related CN201377551Y (en) | 2009-03-30 | 2009-03-30 | Planetary cycloidal reducer of cycloid output |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201377551Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058391A (en) * | 2018-11-02 | 2018-12-21 | 重庆大学 | Mini-type tubular cycloidal pinwheel planetary gear speed reducer |
| CN111022587A (en) * | 2019-11-18 | 2020-04-17 | 衡阳翔润机械有限公司 | Cycloidal speed reducer |
-
2009
- 2009-03-30 CN CN200920012505U patent/CN201377551Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058391A (en) * | 2018-11-02 | 2018-12-21 | 重庆大学 | Mini-type tubular cycloidal pinwheel planetary gear speed reducer |
| CN111022587A (en) * | 2019-11-18 | 2020-04-17 | 衡阳翔润机械有限公司 | Cycloidal speed reducer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204828503U (en) | Double pendulum line RV reduction gear for robot | |
| CN101881318B (en) | General reducer with eccentric engagement pairs | |
| CN202833878U (en) | Robot recreational vehicle (RV) speed reducer | |
| CN203130928U (en) | RV double-cycloidal-pin-wheel speed reducer | |
| CN201196247Y (en) | Fixed-shaft eccentric center cycloid wheel speed reducer | |
| CN101183816A (en) | Decelerator for control motor | |
| CN103016634A (en) | RV (rotate vector) double-cycloidal pin gear speed reducer | |
| CN201377551Y (en) | Planetary cycloidal reducer of cycloid output | |
| CN109723799A (en) | A kind of combined harmonic retarder | |
| CN1043678C (en) | Differential type internally meshing planetary gear structure | |
| CN100414139C (en) | Planetary balance-wheel speed reducer | |
| CN104061295A (en) | Friction planetary reducer | |
| CN101509537A (en) | Cycloid output planet cycloid speed reducer | |
| CN201613998U (en) | Speed reducer for electric bicycle | |
| CN105402321A (en) | Eccentric double-tooth-difference speed-changing device | |
| CN209212899U (en) | The cascade retarder of balance wheel gear unit | |
| CN201137685Y (en) | Multishock cylinder roller speed changing bearing | |
| CN201916426U (en) | Cycloidal speed reducer | |
| CN104653716B (en) | Compound full-tooth driven eccentric movable tooth driving device | |
| CN2758562Y (en) | Speed reducing transmission bearing | |
| CN204459011U (en) | A kind of compound full-depth tooth drives eccentric active-tooth transmission | |
| CN107575541A (en) | Has the planetary reduction gear of few teeth difference reducing gear | |
| CN205479158U (en) | Few number of teeth gear reducer of miniature planet | |
| CN201909008U (en) | Centralized differential reducer | |
| CN209309233U (en) | Multiple tooth difference ring plate cascades retarder |
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: 20100106 Termination date: 20110330 |