CN111219452A - Large-aperture hollow shaft double-body RV speed reducer - Google Patents
Large-aperture hollow shaft double-body RV speed reducer Download PDFInfo
- Publication number
- CN111219452A CN111219452A CN201811424977.0A CN201811424977A CN111219452A CN 111219452 A CN111219452 A CN 111219452A CN 201811424977 A CN201811424977 A CN 201811424977A CN 111219452 A CN111219452 A CN 111219452A
- Authority
- CN
- China
- Prior art keywords
- hollow
- gear
- needle
- input shaft
- end cover
- 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.)
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Classifications
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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
- 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
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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
- 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
- F16H2001/323—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 eccentric crankshafts driving or driven by a gearing
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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
- 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
- F16H2001/327—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 with orbital gear sets comprising an internally toothed ring gear
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a large-aperture hollow shaft double-body RV reducer, which comprises a hollow crank input shaft, an output end cover, an outer ring needle gear shell and an inner ring needle gear shell, wherein the output end cover, the outer ring needle gear shell and the inner ring needle gear shell are sequentially sleeved on the periphery of the hollow crank input shaft, the input end cover, outer lane pin wheel housing have part cover locate the periphery of inner lane pin wheel housing, the periphery of inner lane pin wheel housing is equipped with the cross roller that the cover was equipped with the matching outer lane pin wheel housing, be equipped with the cycloidal gear dish of cover locating the periphery of hollow crank input shaft between output end cover and the input end cover, be equipped with the needle roller holder bearing of cover locating the hollow crank input shaft between cycloidal gear dish and the hollow crank input shaft, the periphery of cycloidal gear dish is equipped with the first pin wheel tooth that matches outer lane pin wheel housing respectively, the second pin wheel tooth that matches the inner lane pin wheel housing, the input end covers and is equipped with the first socket head cap screw of connecting the inner lane pin wheel housing, the output end covers and is equipped with the second socket head cap screw of connecting the outer lane pin wheel housing.
Description
Technical Field
The invention relates to the field of industrial manufacturing automation, in particular to a large-aperture hollow shaft double-body RV speed reducer.
Background
Most suppliers of the wrist structures of the existing light-load robots (with rated load of 10KG or below) adopt harmonic reducers for reducing speed, the advantages of the harmonic reducers are self-evident, but the disadvantages of the harmonic reducers are also obvious, one is weaker than RV, the other is short in service life and high in failure rate, the third is high in manufacturing cost, the fourth is that the supply quantity of finished products is limited by production bottlenecks, and the like. Based on the background that the product cost performance of the company is high, the market share is continuously improved, the product supply quantity gradually becomes the shipment bottleneck, the purchasing quantity and the supply quantity of harmonic products are the bottlenecks in the bottleneck, the company develops a RV reducer capable of replacing harmonic waves, and the company manufactures the RV reducer to break the current bottleneck. The invention aims to provide a large-aperture hollow shaft double-body RV reducer structure to meet the production requirements of the company.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a large-aperture hollow shaft double-body RV speed reducer, which can simplify the assembly of robot products by adopting a fully-closed structure, reduce the production cost, has a simple structure and is convenient to use, and is used for solving the defects caused by the prior art.
In order to solve the technical problems, the invention provides the following technical scheme: a large-aperture hollow shaft double-body RV reducer comprises a hollow crank input shaft, an output end cover, an outer ring needle gear shell, an inner ring needle gear shell and an input end cover, wherein the output end cover, the outer ring needle gear shell, the inner ring needle gear shell and the input end cover are sequentially sleeved on the periphery of the hollow crank input shaft, part of the outer ring needle gear shell is sleeved on the periphery of the inner ring needle gear shell, a cross roller matched with the outer ring needle gear shell is sleeved on the periphery of the inner ring needle gear shell, a cycloid gear disc sleeved on the periphery of the hollow crank input shaft is arranged between the output end cover and the input end cover, a needle roller retainer bearing sleeved on the hollow crank input shaft is arranged between the cycloid gear disc and the hollow crank input shaft, a first needle roller tooth matched with the outer ring needle gear shell and a second needle roller tooth matched with the inner ring needle gear shell are respectively arranged on the periphery of the cycloid gear disc, a first inner hexagon cylinder head screw connected with the inner ring needle gear shell, and the output end cover is provided with a second inner hexagonal socket head cap screw connected with the outer ring needle gear shell.
In the large-aperture hollow shaft double-body RV speed reducer, an input gear fixing hole is formed in one end, away from the output end cover, of the hollow crank input shaft, an outer ring pin gear shell fixing hole is formed in one end, away from the output end cover, of the outer ring pin gear shell, and an inner ring pin gear shell fixing hole is formed in one end, away from the output end cover, of the inner ring pin gear shell.
The large-aperture hollow shaft double-body RV reducer is characterized in that the number of the cycloid gear discs is four, and the number of the needle roller retainer bearings is three.
In the large-aperture hollow shaft double-body RV speed reducer, framework oil seals are arranged between the hollow crank input shaft and the outer ring needle gear shell, between the hollow crank input shaft and the input end cover, and between the outer ring needle gear shell and the inner ring needle gear shell.
In the large-aperture hollow shaft double-body RV reducer, angular contact ball bearings are arranged between the hollow crank input shaft and the outer ring pin gear shell and between the hollow crank input shaft and the input end cover.
In the large-aperture hollow shaft double-body RV reducer, a retainer ring is arranged between the first needle roller teeth and the second needle roller teeth.
According to the technical scheme provided by the large-aperture hollow shaft double-body RV speed reducer, the invention has the following technical effects: the robot has the advantages of simplifying the assembly of robot products by adopting a totally-enclosed structure, reducing the production cost, along with simple structure and convenient use.
Drawings
FIG. 1 is a schematic diagram of the internal structure of a large-aperture hollow shaft double-body RV reducer of the invention;
fig. 2 is a schematic external structural view of a large-aperture hollow shaft double-body RV reducer of the present invention.
Wherein the reference numbers are as follows: the crank shaft comprises a hollow crank input shaft 101, an output end cover 102, an outer ring needle gear shell 103, an inner ring needle gear shell 104, an input end cover 105, a crossed roller 106, a cycloid gear disc 107, a needle roller cage bearing 108, first needle roller teeth 109, second needle roller teeth 110, a first inner hexagonal socket head cap screw 111, a retainer ring 112, an input gear fixing hole 201, an outer ring needle gear shell fixing hole 202, an inner ring needle gear shell fixing hole 203 and a second inner hexagonal socket head cap screw 204.
Detailed Description
In order to make the technical means, the characteristics, the purposes and the functions of the invention easy to understand, the invention is further described with reference to the specific drawings.
A preferred embodiment of the present invention provides a large-aperture hollow shaft dual-body RV reducer, aiming to simplify the assembly of robot products by adopting a fully-closed structure, reduce the production cost, have a simple structure, and be convenient for use.
As shown in fig. 1-2, a large-aperture hollow shaft double-body RV reducer comprises a hollow crank input shaft 101, an output end cover 102, an outer ring needle gear case 103, an inner ring needle gear case 104 and an input end cover 105 which are sequentially sleeved on the periphery of the hollow crank input shaft 101, wherein a part of the outer ring needle gear case 103 is sleeved on the periphery of the inner ring needle gear case 104, a cross roller 106 sleeved with the outer ring needle gear case 103 is arranged on the periphery of the inner ring needle gear case 104, a cycloid gear disc 107 sleeved on the periphery of the hollow crank input shaft 101 is arranged between the output end cover 102 and the input end cover 105, a needle roller cage bearing 108 sleeved on the hollow crank input shaft 101 is arranged between the cycloid gear disc 107 and the hollow crank input shaft 101, a first needle roller gear 109 matched with the outer ring needle gear case 103 and a second needle roller gear 110 matched with the inner ring needle gear case 104 are respectively arranged on the periphery of the cycloid gear disc 107, a first inner hexagon head screw 111 connected with the inner ring needle gear case 104 is arranged on the input end, the output end cover 102 is provided with a second inner hexagonal socket head cap screw 204 connected with the outer ring pin gear shell 103.
In the large-aperture hollow shaft double-body RV speed reducer provided by this embodiment, an input gear fixing hole 201 is formed in one end of the hollow crank input shaft 101 away from the output end cover 102, an outer ring pin gear case fixing hole 202 is formed in one end of the outer ring pin gear case 103 away from the output end cover 102, and an inner ring pin gear case fixing hole 203 is formed in one end of the inner ring pin gear case 104 away from the output end cover 102.
In the large-aperture hollow-shaft double-body RV reducer provided by the embodiment, four cycloid gear discs 107 are adopted, three needle roller cage bearings 108 are arranged, two cycloid gear discs 107 are respectively arranged between an outer ring needle gear shell 103 and a hollow crank input shaft 101 and between an inner ring needle gear shell 104 and the hollow crank input shaft 101, so that two RV reducers are formed, two groups of reducers share one hollow crank input shaft 101, the number of teeth of a first cycloid gear 109 and the number of teeth of a second cycloid gear 110 are respectively one more than the number of teeth of the cycloid gear discs 107, during operation, the rotation periods of the cycloid gear discs 107 of the two groups of RV reducers are different, and under the common constraint of the common crank input shaft and the cycloid gear discs 107, power can only be transmitted to the outer ring needle gear shell 103 and the inner ring needle gear shell 104 of the two groups of RVs, and finally the double-rest cross bearing inner ring reducer is completed, Relative rotation of the outer race.
In the large-aperture hollow shaft double-body RV speed reducer provided by this embodiment, framework oil seals are disposed between the hollow crank input shaft 101 and the outer ring pin gear housing 103, between the hollow crank input shaft 101 and the input end cover 105, and between the outer ring pin gear housing 103 and the inner ring pin gear housing 104.
In the large-aperture hollow shaft double-body RV reducer provided by the embodiment, angular contact ball bearings are arranged between the hollow crank input shaft 101 and the outer ring pin gear housing 103, and between the hollow crank input shaft 101 and the input end cover 105.
In the large-aperture hollow-shaft double-body RV reducer provided by this embodiment, a retainer ring 112 is disposed between the first needle gear 109 and the second needle gear 110.
In conclusion, the large-aperture hollow shaft double-body RV speed reducer has the advantages that the assembly of robot products is simplified by adopting a fully-closed structure, the production cost is reduced, the structure is simple, and the use is convenient.
Specific embodiments of the invention have been described above. It is to be understood that the invention is not limited to the particular embodiments described above, in that devices and structures not described in detail are understood to be implemented in a manner common in the art; various changes or modifications may be made by one skilled in the art within the scope of the claims without departing from the spirit of the invention, and without affecting the spirit of the invention.
Claims (6)
1. A large-aperture hollow shaft double-body RV reducer is characterized by comprising a hollow crank input shaft, an output end cover, an outer ring needle gear shell, an inner ring needle gear shell and an input end cover, wherein the output end cover, the outer ring needle gear shell, the inner ring needle gear shell and the input end cover are sequentially sleeved on the periphery of the hollow crank input shaft, part of the outer ring needle gear shell is sleeved on the periphery of the inner ring needle gear shell, a cross roller matched with the outer ring needle gear shell is sleeved on the periphery of the inner ring needle gear shell, a cycloid gear disc sleeved on the periphery of the hollow crank input shaft is arranged between the output end cover and the input end cover, a needle roller retainer bearing sleeved on the hollow crank input shaft is arranged between the cycloid gear disc and the hollow crank input shaft, a first needle roller tooth matched with the outer ring needle gear shell and a second needle roller tooth matched with the inner ring needle gear shell are respectively arranged on the periphery of the cycloid gear disc, a first inner hexagon cylinder head screw connected with the inner ring needle gear, and the output end cover is provided with a second inner hexagonal socket head cap screw connected with the outer ring needle gear shell.
2. The large-aperture hollow-shaft twin-body RV reducer according to claim 1, wherein an input gear fixing hole is provided at an end of said hollow crank input shaft facing away from said output end cap, an outer ring needle gear housing fixing hole is provided at an end of said outer ring needle gear housing facing away from said output end cap, and an inner ring needle gear housing fixing hole is provided at an end of said inner ring needle gear housing facing away from said output end cap.
3. A large-aperture hollow-shaft twin-body RV reducer according to claim 2, in which there are four of said cycloidal gear discs and three of said needle-cage bearings.
4. The large-aperture hollow-shaft double-body RV reducer as claimed in claim 3, characterized in that framework oil seals are arranged between said hollow crank input shaft and said outer ring pin gear case, between said hollow crank input shaft and said input end cover, and between said outer ring pin gear case and said inner ring pin gear case.
5. The large-aperture hollow-shaft double-body RV reducer as claimed in claim 4, characterized in that angular contact ball bearings are arranged between said hollow crank input shaft and said outer ring pin gear housing, and between said hollow crank input shaft and said input end cover.
6. The large-aperture hollow-shaft twin-body RV reducer of claim 5, wherein a retainer ring is provided between said first needle teeth and said second needle teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811424977.0A CN111219452A (en) | 2018-11-27 | 2018-11-27 | Large-aperture hollow shaft double-body RV speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811424977.0A CN111219452A (en) | 2018-11-27 | 2018-11-27 | Large-aperture hollow shaft double-body RV speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111219452A true CN111219452A (en) | 2020-06-02 |
Family
ID=70828842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811424977.0A Withdrawn CN111219452A (en) | 2018-11-27 | 2018-11-27 | Large-aperture hollow shaft double-body RV speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111219452A (en) |
-
2018
- 2018-11-27 CN CN201811424977.0A patent/CN111219452A/en not_active Withdrawn
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220216 Address after: 242000 No. 8, baijianshan Road, Feicai office, Xuanzhou District, Xuancheng City, Anhui Province Applicant after: Anhui Yunhua Intelligent Equipment Co.,Ltd. Address before: 242000 No.8 baijianshan Road, Xuancheng economic and Technological Development Zone, Xuancheng City, Anhui Province Applicant before: Anhui huanting Intelligent Technology Co.,Ltd. |
|
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200602 |