CN104196966A - High-accuracy rotation-joint speed reducer - Google Patents
High-accuracy rotation-joint speed reducer Download PDFInfo
- Publication number
- CN104196966A CN104196966A CN201410392626.1A CN201410392626A CN104196966A CN 104196966 A CN104196966 A CN 104196966A CN 201410392626 A CN201410392626 A CN 201410392626A CN 104196966 A CN104196966 A CN 104196966A
- Authority
- CN
- China
- Prior art keywords
- eccentric
- gear
- cycloid wheel
- speed reducer
- arranged outside
- 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.)
- Pending
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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
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- 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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The invention discloses a high-accuracy rotation-joint speed reducer. A sun gear is arranged on the right side of a driving shaft. The upper portion and the lower portion of the sun gear are respectively provided with a driven planet gear. The sun gear is meshed with the driven planet gears. The driven planet gears are fixedly connected with eccentric shafts. A supporting flange is arranged on the outer sides of the left ends of the eccentric shafts. Two eccentric parts are arranged on each eccentric shaft, wherein the phase difference of the two eccentric parts is 180 degrees, and a left cycloidal gear and a right cycloidal gear are arranged on the outer sides of the two eccentric parts. An outer shell gear pin is arranged on the outer sides of the left cycloidal gears and the outer sides of the right cycloidal gears. An output base is arranged on the outer side of the outer shell gear pin. The left side of the left cycloidal gear and the right side of the right cycloidal gear are respectively provided with a positioning bearing. The left sides and the right sides of the two eccentric shafts are respectively provided with a clamping spring. The outer sides of the left ends of the two eccentric shafts are provided with a radial bearing.
Description
Technical field
The present invention relates to power transmission, refer to particularly a kind of high-precision rotary joint speed reducer.
Background technique
At present extensive use high precision machines people's retarder take Japanese harmonic speed reducer and RV retarder as main, their common features are small volume, big speed ratio, highi degree of accuracy, high moment of torsion.Wherein harmonic wave is relatively simple for structure, but because the rigidity of flexbile gear is not enough, so performance is not good enough aspect torque transmitting.And the complicated structure of RV retarder and first will pass through primary gear speed reducing, then use 2-3 eccentric shaft and two to three planet gear transmissions, assemble also more difficultly, thereby its manufacture cost is higher.
Summary of the invention
The object of this invention is to provide a kind of delicate structure, assembling simply, lower-cost high-precision rotary joint speed reducer.
The present invention clicks technological scheme and realizes:
A high-precision rotary joint speed reducer, driving shaft right side is provided with central gear; Described central gear is respectively provided with a driven planetary pinion up and down; Described central gear and described driven planetary pinion engagement; Described driven planetary pinion and eccentric shaft connect firmly; Described eccentric shaft left end arranged outside has pivot flange.
On described eccentric shaft, be furnished with two eccentric parts, the phase difference of two eccentric parts is 180 degree; Described two eccentric part arranged outside have left cycloid wheel and right cycloid wheel.
Described left cycloid wheel and described right cycloid wheel arranged outside have surgeon's needle alligator; Described surgeon's needle alligator arranged outside has output seat.
Further, described left cycloid wheel left side and described right cycloid wheel right side are respectively provided with a positioning bearing.
Again further, two described eccentric shafts are each side provided with a jump ring; Two described eccentric shaft left end arranged outside have radial bearing.
Usefulness of the present invention is:
1, have round pin tooth in traditional cycloid transmission, but cycloid wheel is the symmetrical driving of double-eccentric shaft (three axles are uniform driving), level has the advantage of harmonic gear and without flexbile gear transmission, collects few teeth difference transmission and Gear Planet Transmission at a high speed, and velocity ratio is interfered greatly and not.
2, multiple tooth engagement, bearing capacity is large.
Owing to taking double-impeller cycloid wheel transmission, total number of teeth in engagement can reach 50% simultaneously, and general Spur Gear Driving only has 1-2 tooth, and helical gear can not surpass 4 teeth yet, so bearing capacity is larger than the gear transmission power of the same terms.
3, stable drive, noise is low.
This machine in design, rotate by the couple in applied mechanics, and input shaft is in centre, and two of transmissions are simultaneously distributed in the eccentric row axle rotation on 180 °.Because two two-row structure mechanism balances that are distributed on 180 °, between rolling and side, clearance can be avoided gear tooth interference, makes mechanical shock and noise be limited in minimum degree.
4, transmission is accurate, and error is less.
Owing to taking multiple tooth engagement, gear error can compensate mutually, Gu driving error value is 25% of ordinary gear speed reducer.
5, roller flute profile, long service life.
Internal tooth is all taked oscillating tooth mechanism, and technique is better, processes simple and easyly, and low cost of manufacture, adds and have gongylodont, cohesive force is strong, is difficult for collapsing tooth, maintenance easily, long service life.
6, power consumption economizes, good economy performance.
Due to High power output, efficiency is high, and energy loss is little, and working load alleviates, and can turn round for a long time, and economic benefit is more remarkable.
Accompanying drawing explanation
Fig. 1 is high-precision rotary of the present invention joint speed reducer schematic cross-section.
Fig. 2 is high-precision rotary of the present invention joint speed reducer
In figure: driving shaft 1; Pivot flange 2; Eccentric shaft 3; Output seat 4; Driven planetary pinion 5; Surgeon's needle alligator 6; Positioning bearing 7; Jump ring 8; Radial bearing 9; Central gear 10; Left cycloid wheel 11, right cycloid wheel 12, roller bearing 13.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
A high-precision rotary joint speed reducer, driving shaft 1 right side is provided with central gear 10; Central gear 10 is respectively provided with a driven planetary pinion 5 up and down; Central gear 10 and driven planetary pinion 5 engagements; Driven planetary pinion 5 connects firmly with eccentric shaft 3; Eccentric shaft 3 left end arranged outside have pivot flange 2.
On eccentric shaft 3, are furnished with two eccentric part 3a, 3b; The phase difference of two eccentric parts is 180 degree; Two eccentric part 3a, 3b arranged outside has left cycloid wheel 11 and right cycloid wheel 12.
Left cycloid wheel 11 and right cycloid wheel 12 arranged outside have surgeon's needle alligator 6; Surgeon's needle alligator 6 arranged outside have output seat 4.
Left cycloid wheel 11 left sides and right cycloid wheel 12 right sides are respectively provided with a positioning bearing 7.
Two eccentric shafts 3 are each side provided with a jump ring 8; Two eccentric shaft 3 left end arranged outside have radial bearing 9; Two described eccentric shaft 3 outsides, middle part respectively arrange four ball bearings 13.
When the present invention works, power is inputted by driving shaft 1, central gear 10 and driving shaft 1 one rotation; Central gear 10 drives driven planetary pinion 5; Driven planetary pinion 5 connects firmly with eccentric shaft 3, one rotation; Two eccentric shafts 3 are staggered and drive left cycloid wheel 11, right cycloid wheel 12; Left cycloid wheel 11, right cycloid wheel 12 alternately drive output seat 4 to rotatablely move.
Claims (3)
1. a high-precision rotary joint speed reducer, is characterized in that: driving shaft (1) right side is provided with central gear (10); Described central gear (10) is respectively provided with a driven planetary pinion (5) up and down; Described central gear (10) and described driven planetary pinion (5) engagement; Described driven planetary pinion (5) connects firmly with eccentric shaft (3); Described eccentric shaft (3) left end arranged outside has pivot flange (2);
Described eccentric shaft is furnished with two eccentric parts (3a, 3b) on (3), and the phase difference of two eccentric parts is 180 degree; Described two eccentric parts (3a, 3b) arranged outside has left cycloid wheel (11) and right cycloid wheel (12);
Described left cycloid wheel (11) and described right cycloid wheel (12) arranged outside have surgeon's needle alligator (6); Described surgeon's needle alligator (6) arranged outside has output seat (4).
2. high-precision rotary according to claim 1 joint speed reducer, is characterized in that: described left cycloid wheel (11) left side and described right cycloid wheel (12) right side are respectively provided with a positioning bearing (7).
3. high-precision rotary according to claim 1 joint speed reducer, is characterized in that: two described eccentric shafts (3) are each side provided with a jump ring (8); Two described eccentric shafts (3) left end arranged outside has radial bearing (9); Outside, two described eccentric shafts (3) middle part respectively arranges four ball bearings (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410392626.1A CN104196966A (en) | 2014-08-11 | 2014-08-11 | High-accuracy rotation-joint speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410392626.1A CN104196966A (en) | 2014-08-11 | 2014-08-11 | High-accuracy rotation-joint speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104196966A true CN104196966A (en) | 2014-12-10 |
Family
ID=52082307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410392626.1A Pending CN104196966A (en) | 2014-08-11 | 2014-08-11 | High-accuracy rotation-joint speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104196966A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008101235A1 (en) * | 2007-02-16 | 2008-08-21 | Delbert Tesar | Manufacture and use of parallel eccentric electro-mechanical actuator |
| TW200918790A (en) * | 2007-10-23 | 2009-05-01 | Univ Nat Formosa | Roller drives with two-tooth difference and its fabrication method |
| JP2010032038A (en) * | 2008-07-02 | 2010-02-12 | Ntn Corp | Cycloid speed reduction gear, in-wheel motor driving device, and motor driving device for vehicle |
| CN101749411A (en) * | 2009-11-27 | 2010-06-23 | 昆山华恒机械制造有限公司 | Planet carrier of cycloidal needle wheel decelerator |
| CN203743324U (en) * | 2014-03-25 | 2014-07-30 | 李辛 | Pure-roller needle meshing RV speed reducer |
| CN204114018U (en) * | 2014-08-11 | 2015-01-21 | 武汉市精华减速机制造有限公司 | High-precision rotary joint speed reducer |
-
2014
- 2014-08-11 CN CN201410392626.1A patent/CN104196966A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008101235A1 (en) * | 2007-02-16 | 2008-08-21 | Delbert Tesar | Manufacture and use of parallel eccentric electro-mechanical actuator |
| TW200918790A (en) * | 2007-10-23 | 2009-05-01 | Univ Nat Formosa | Roller drives with two-tooth difference and its fabrication method |
| JP2010032038A (en) * | 2008-07-02 | 2010-02-12 | Ntn Corp | Cycloid speed reduction gear, in-wheel motor driving device, and motor driving device for vehicle |
| CN101749411A (en) * | 2009-11-27 | 2010-06-23 | 昆山华恒机械制造有限公司 | Planet carrier of cycloidal needle wheel decelerator |
| CN203743324U (en) * | 2014-03-25 | 2014-07-30 | 李辛 | Pure-roller needle meshing RV speed reducer |
| CN204114018U (en) * | 2014-08-11 | 2015-01-21 | 武汉市精华减速机制造有限公司 | High-precision rotary joint speed reducer |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141210 |
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| RJ01 | Rejection of invention patent application after publication |