CN111219453A - Large-aperture hollow shaft RV speed reducer - Google Patents
Large-aperture hollow shaft RV speed reducer Download PDFInfo
- Publication number
- CN111219453A CN111219453A CN201811424980.2A CN201811424980A CN111219453A CN 111219453 A CN111219453 A CN 111219453A CN 201811424980 A CN201811424980 A CN 201811424980A CN 111219453 A CN111219453 A CN 111219453A
- Authority
- CN
- China
- Prior art keywords
- end cover
- input shaft
- hollow
- output end
- sleeved
- 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.)
- Withdrawn
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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
- 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Transmission (AREA)
- Retarders (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a large-aperture hollow shaft RV reducer, which comprises a hollow crank input shaft, an input end cover and a cycloid gear disc, wherein the input end cover and the cycloid gear disc are sequentially sleeved on the periphery of the hollow crank input shaft, the hollow crank input shaft is provided with an input shaft threaded hole at one end deviating from the output end cover, a bearing support seat sleeved on the hollow crank input shaft is arranged inside the input end cover, a crossed roller bearing outer ring is sleeved on the periphery of the output end cover, a needle roller retainer bearing sleeved on the hollow crank input shaft is arranged on the inner wall of the cycloid gear disc, a needle gear shell with two ends respectively connected with the input end cover and the crossed roller bearing outer ring is sleeved on the periphery of the cycloid gear disc, a plurality of needle rollers are arranged between the needle gear shell and the cycloid gear disc, a first inner hexagonal cylinder head screw connected with the needle gear shell is arranged on the input end cover, and a second inner hexagonal cylinder head screw connected with the input end cover is arranged on the output end cover.
Description
Technical Field
The invention relates to the field of industrial manufacturing automation, in particular to a large-aperture hollow shaft RV 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 RV reducer structure to meet the production requirements of the company.
Disclosure of Invention
The invention aims to solve the technical problem of providing a large-aperture hollow shaft RV speed reducer which is capable of simplifying the assembly of robot products by adopting a fully-closed structure, reducing the production cost, and is simple in structure and convenient to use, so as to solve 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 RV speed reducer comprises a hollow crank input shaft, an input end cover, a cycloid gear disc and an output end cover, wherein the input end cover, the cycloid gear disc and the output end cover are sequentially sleeved on the periphery of the hollow crank input shaft, an input shaft threaded hole is formed in one end, deviating from the output end cover, of the hollow crank input shaft, a bearing support seat is arranged in the input end cover and sleeved on the hollow crank input shaft, a crossed roller bearing outer ring is sleeved on the periphery of the output end cover, a needle gear shell is arranged on the inner wall of the cycloid gear disc and sleeved on the hollow crank input shaft, needle gear shells are sleeved on the periphery of the cycloid gear disc, two ends of each needle gear shell are respectively connected with the input end cover and the crossed roller bearing outer ring, a plurality of needle gears are arranged between the needle gear shells and the cycloid gear disc, and a first inner hexagonal socket head screw connected with the, and the output end cover is provided with a second inner hexagonal socket head cap screw connected with the input end cover.
In the large-aperture hollow shaft RV reducer, a roller is disposed between the output end cover and the outer ring of the crossed roller bearing.
In the large-aperture hollow shaft RV reducer, a transmission pin bush is sleeved on the periphery of the second hexagon socket head cap screw.
In the large-aperture hollow shaft RV reducer, skeleton oil seals are arranged between the hollow crank input shaft and the input end cover, between the hollow crank input shaft and the output end cover, and between the output end cover and the crossed roller bearing outer ring.
In the large-aperture hollow shaft RV reducer, deep groove ball bearings are arranged between the input end cover and the bearing support seat, between the bearing support seat and the hollow crank input shaft, and between the hollow crank input shaft and the output end cover.
According to the technical scheme provided by the invention, the effect is as follows: 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 view of the internal structure of a large-aperture hollow shaft RV reducer of the present invention;
FIG. 2 is a schematic diagram of an external side structure of a large-aperture hollow shaft RV reducer according to the present invention;
fig. 3 is a schematic view of the structure of the other side of the outside of a large-aperture hollow shaft RV reducer of the present invention.
Wherein the reference numbers are as follows: the device comprises a hollow crank input shaft 101, an input end cover 102, a cycloid gear disc 103, an output end cover 104, a bearing support base 105, a crossed roller bearing outer ring 106, a needle roller cage bearing 107, a needle tooth shell 108, needle roller teeth 109, a first inner hexagonal socket head cap screw 110, a second inner hexagonal socket head cap screw 111, a roller 112, a transmission pin sleeve 113 and an input shaft threaded hole 201.
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 RV reducer, which aims to simplify the assembly of robot products, reduce the production cost, and have a simple structure and convenient use by adopting a fully-enclosed structure.
As shown in fig. 1-3, a large-aperture hollow shaft RV reducer comprises a hollow crank input shaft 101, and an input end cover 102, a cycloid gear disc 103, and an output end cover 104 sequentially sleeved on the periphery of the hollow crank input shaft 101, wherein one end of the hollow crank input shaft 101, which is away from the output end cover 104, is provided with an input shaft threaded hole 201, the inside of the input end cover 102 is provided with a bearing support base 105 sleeved on the hollow crank input shaft 101, the periphery of the output end cover 104 is sleeved with a crossed roller bearing outer ring 106, the inner wall of the cycloid gear disc 103 is provided with a needle roller retainer bearing 107 sleeved on the hollow crank input shaft 101, the periphery of the cycloid gear disc 103 is sleeved with a needle gear shell 108, two ends of which are respectively connected with the input end cover 102 and the crossed roller bearing outer ring 106, a plurality of needle rollers 109 are arranged between the needle gear shell 108 and the cycloid gear disc 103, the input end cover 102 is provided with a first inner, the output end cover 104 is provided with a second hexagon socket cap screw 111 connected to the input end cover 102, when in use, the hollow crank input shaft 101 rotates for 1 circle, the cycloid gear disc 103 rotates for 1 tooth in the opposite direction, the number of the rotation circles of the hollow crank input shaft 101 is the number of pin teeth, the cycloid gear disc 103 rotates for 1 whole circle in the opposite direction, and the reduction ratio at this time is the number of the pin teeth.
In the large-aperture hollow shaft RV reducer provided in this embodiment, a roller 112 is disposed between an output end cover 104 and a cross roller bearing outer ring 106.
In the large-aperture hollow shaft RV reducer provided in this embodiment, a driving pin sleeve 113 is sleeved on the periphery of a second hexagon socket head cap screw 111.
In the large-aperture hollow shaft RV reducer provided in this embodiment, skeleton oil seals are disposed between the hollow crank input shaft 101 and the input end cover 102, between the hollow crank input shaft 101 and the output end cover 104, and between the output end cover 104 and the crossed roller bearing outer ring 106.
In the large-aperture hollow shaft RV reducer provided in this embodiment, deep groove ball bearings are disposed between the input end cap 102 and the bearing support base 105, between the bearing support base 105 and the hollow crank input shaft 101, and between the hollow crank input shaft 101 and the output end cap 104.
In conclusion, the large-aperture hollow shaft 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 (5)
1. A large-aperture hollow shaft RV speed reducer is characterized by comprising a hollow crank input shaft, an input end cover, a cycloid gear disc and an output end cover, wherein the input end cover, the cycloid gear disc and the output end cover are sequentially sleeved on the periphery of the hollow crank input shaft, an input shaft threaded hole is formed in one end, deviating from the output end cover, of the hollow crank input shaft, a bearing support seat is arranged in the input end cover and sleeved on the hollow crank input shaft, a crossed roller bearing outer ring is sleeved on the periphery of the output end cover, a needle gear shell is arranged on the inner wall of the cycloid gear disc and sleeved on the hollow crank input shaft, a needle gear shell is sleeved on the periphery of the cycloid gear disc, two ends of the needle gear shell are respectively connected with the input end cover and the crossed roller bearing outer ring, a plurality of needle rollers are arranged between the needle gear shell and the cycloid gear disc, and a first inner hexagonal socket head screw connected, and the output end cover is provided with a second inner hexagonal socket head cap screw connected with the input end cover.
2. The large aperture hollow shaft RV reducer of claim 1, wherein rollers are provided between said output end cap and said crossed roller bearing outer race.
3. The large-aperture hollow shaft RV reducer as claimed in claim 2, characterized in that the periphery of said second socket head cap screw is sleeved with a drive pin sleeve.
4. The large-aperture hollow shaft RV reducer of claim 3, characterized in that skeleton oil seals are arranged between the hollow crank input shaft and the input end cover, between the hollow crank input shaft and the output end cover, and between the output end cover and the crossed roller bearing outer ring.
5. The large-aperture hollow shaft RV reducer of claim 4, characterized in that deep groove ball bearings are arranged between said input end cap and said bearing support seat, between said bearing support seat and said hollow crank input shaft, and between said hollow crank input shaft and said output end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811424980.2A CN111219453A (en) | 2018-11-27 | 2018-11-27 | Large-aperture hollow shaft RV speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811424980.2A CN111219453A (en) | 2018-11-27 | 2018-11-27 | Large-aperture hollow shaft RV speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111219453A true CN111219453A (en) | 2020-06-02 |
Family
ID=70830408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811424980.2A Withdrawn CN111219453A (en) | 2018-11-27 | 2018-11-27 | Large-aperture hollow shaft RV speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111219453A (en) |
-
2018
- 2018-11-27 CN CN201811424980.2A patent/CN111219453A/en not_active Withdrawn
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Legal Events
| 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 |