CN105736662A - Two-stage roller screw speed reducer - Google Patents
Two-stage roller screw speed reducer Download PDFInfo
- Publication number
- CN105736662A CN105736662A CN201610162096.0A CN201610162096A CN105736662A CN 105736662 A CN105736662 A CN 105736662A CN 201610162096 A CN201610162096 A CN 201610162096A CN 105736662 A CN105736662 A CN 105736662A
- Authority
- CN
- China
- Prior art keywords
- stage roller
- outfan
- guide rod
- screw
- roller
- 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
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
- F16H25/2247—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rollers
Abstract
The invention discloses a two-stage roller screw speed reducer. The two-stage roller screw speed reducer comprises an input screw, an output end and a housing, wherein the input screw and the output end are connected to the housing; the input screw is connected to a motor; and the output end is connected to a load. The two-stage roller screw speed reducer further comprises a first stage roller, a second stage roller, a transmission guide rod and an intermediate nut, wherein the intermediate nut, which has internal and external threads, is separately connected to internal and external threads of the first stage roller and the second stage roller; one end of the transmission guide rod is connected to the input screw through a rotating disc while the other end of the transmission guide rod is connected to the output end through a hexagonal bolt; and the first stage roller and the second stage roller move in the axial direction along the transmission guide rod. According to the speed reducer disclosed by the invention, the two-stage rollers are connected in the radial direction to convert forward and reverse rotation motions of the motor into rotation output in a range of 180 degrees, and the speed reducer has the characteristics of high bearing capacity, long service life, high speed reducing efficiency and convenience in mounting and maintenance.
Description
Technical field
The present invention relates to decelerator technical field, particularly relate to a kind of two-stage roller screw decelerator.
Background technology
Along with the development of science and technology, people are more and more higher to the requirement of the performance indications such as the transmission accuracy of robot, bearing capacity.The mechanical transmission component of robot is predominantly located at joint, and the quality of robot work quality depends primarily on joint speed reducer.What robot joint speed reducer application was maximum is harmonic speed reducer.Wherein harmonic speed reducer is mainly used in the carpal joint of robot, elbow joint and little shoulder joint, it is little that harmonic speed reducer has volume, lightweight, stable drive, the feature that precision is higher, but the flexbile gear rigidity of harmonic speed reducer is not high, and flexbile gear easily weares and teares in engaging-in and the process of nibbling out, and therefore it is mainly used in the less demanding occasion of bearing capacity.
Summary of the invention
The problems referred to above are the present invention is to solve, provide a kind of two-stage roller screw decelerator, adopt two-stage roller at radial series, it is the gyroscopic output within the scope of 180 ° the rotating conversion of motion of motor, has the advantages that bearing capacity height, long service life, retardation efficiency are high, convenient to install and maintain.
Solve the technical problem that required by the present invention and can be achieved through the following technical solutions:
A kind of two-stage roller screw decelerator, including input leading screw, outfan, housing, described input leading screw, outfan are connected with housing, described input leading screw is connected with motor, described outfan is connected with load, also includes one-level roller, two grades of rollers, transmission guide rod, intermediate nut, and described one-level roller is connected with input leading screw, described intermediate nut is internal and external threads, and intermediate nut is connected with one-level roller, two grades of roller internal and external threads respectively；Described transmission guide rod one end is connected with input leading screw by rotation dish, and the other end is connected with outfan by hex bolts, and described one-level roller, two grades of rollers axially move along transmission guide rod.
Further, described input leading screw is fixed on housing by input bearing, input end cap.
Further, described input bearing is angular contact bearing.
Further, described outfan is fixed on housing by outfan bearing, adjustment pad, outfan end cap.
Further, described outfan bearing is taper roll bearing.
Further, described one-level roller, two grades of rollers are connected with transmission guide rod respectively through retainer.
Further, described transmission guide rod has four.
The medicine have the advantages that a kind of two-stage roller screw decelerator, adopt two-stage roller at radial series, it is the gyroscopic output within the scope of 180 ° the rotating conversion of motion of motor, has the advantages that bearing capacity height, long service life, retardation efficiency are high, convenient to install and maintain.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention will be further described:
Fig. 1 is reducer structure figure of the present invention；
Related elements symbol description:
1, input leading screw；2, input end cap；3, input bearing；4, housing；5, one-level roller；6, transmission guide rod；7, spring bearing；8, hex bolts；9, intermediate nut；10, two grades of rollers；11, outfan bearing；12, pad is adjusted；13, outfan end cap；14, outfan.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and effect and be easy to understand, below in conjunction with being specifically illustrating, the present invention is expanded on further.
Shown in Fig. 1, a kind of two-stage roller screw decelerator, including input leading screw 1, input end cap 2, input bearing 3, housing 4, one-level roller 5, transmission guide rod 6, spring bearing 7, hex bolts 8,9, two grades of rollers 10 of intermediate nut, outfan bearing 11, adjusts pad 12, outfan end cap 13, outfan 14.
Input leading screw 1 one end is connected with motor, and the other end is connected with housing 4.Outfan 14 one end is connected with housing 4, and the other end is connected with load.One-level roller 5 is connected with input leading screw 1, and intermediate nut 9 is internal and external threads, and intermediate nut 9 is connected with 5, two grades of roller 10 internal and external threads of one-level roller respectively.Transmission guide rod 6 one end is connected by spring bearing 7 and rotation dish are fixing, rotation dish is connected with input leading screw, input leading screw is rotated disc spins, and the other end of transmission guide rod 6 is connected with outfan 14 by hex bolts 8, and 5, two grades of rollers 10 of one-level roller axially move along transmission guide rod 6.
Leading screw 1 can pass through input bearing 3, input end cap 2 is fixed on housing 4 in input；Input leading screw is in high speed level, and input bearing 3 can be angular contact bearing.Outfan 14 is fixed on housing 4 by outfan bearing 11, adjustment pad 12, outfan end 13 lid；The speed of outfan is relatively low, and outfan bearing 11 can be taper roll bearing.5, two grades of rollers 10 of one-level roller have many, are connected with transmission guide rod 6 respectively through retainer.Transmission guide rod 6 can have four.Having screw thread inside and outside intermediate nut 5, female thread is as the nut of one-level roller, and external screw thread is as the leading screw of two grades of rollers, and two-stage roller all does planetary motion in corresponding retainer, and retainer is also spinned motion, not only rotates but also move.Input leading screw, one-level roller, two grades of rollers and nut all adopt bearing steel material, and adopt case-carbonizing or Nitrizing Treatment, and when same size specification, it is bigger than the bearing capacity of ball-screw 1.5-2 times.
Two-stage roller screw decelerator of the present invention, adopt two-stage roller at radial series, it is the gyroscopic output within the scope of 180 ° the rotating conversion of motion of motor, has the advantages that bearing capacity height, long service life, retardation efficiency are high, convenient to install and maintain, adaptable.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; described in above-described embodiment and description is that principles of the invention is described; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements both fall within the claimed scope of the invention.Claimed scope is defined by appending claims and equivalent thereof.
Claims (7)
1. a two-stage roller screw decelerator, including input leading screw, outfan, housing, described input leading screw, outfan are connected with housing, described input leading screw is connected with motor, described outfan is connected with load, it is characterised in that: also including one-level roller, two grades of rollers, transmission guide rod, intermediate nut, described one-level roller is connected with input leading screw, described intermediate nut is internal and external threads, and intermediate nut is connected with one-level roller, two grades of roller internal and external threads respectively；Described transmission guide rod one end is connected with input leading screw by rotation dish, and the other end is connected with outfan by hex bolts, and described one-level roller, two grades of rollers axially move along transmission guide rod.
2. a kind of two-stage roller screw decelerator described in claim 1, it is characterised in that: described input leading screw is fixed on housing by input bearing, input end cap.
3. a kind of two-stage roller screw decelerator described in claim 2, it is characterised in that: described input bearing is angular contact bearing.
4. a kind of two-stage roller screw decelerator described in claim 1, it is characterised in that: described outfan is fixed on housing by outfan bearing, adjustment pad, outfan end cap.
5. a kind of two-stage roller screw decelerator described in claim 4, it is characterised in that: described outfan bearing is taper roll bearing.
6. a kind of two-stage roller screw decelerator described in claim 1, it is characterised in that: described one-level roller, two grades of rollers are connected with transmission guide rod respectively through retainer.
7. a kind of two-stage roller screw decelerator described in claim 6, it is characterised in that: described transmission guide rod has four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610162096.0A CN105736662A (en) | 2016-03-21 | 2016-03-21 | Two-stage roller screw speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610162096.0A CN105736662A (en) | 2016-03-21 | 2016-03-21 | Two-stage roller screw speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105736662A true CN105736662A (en) | 2016-07-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610162096.0A Pending CN105736662A (en) | 2016-03-21 | 2016-03-21 | Two-stage roller screw speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105736662A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641157A (en) * | 2017-02-15 | 2017-05-10 | 池州市邦鼐机电科技有限公司 | Screw-driven novel joint speed reducer |
| CN106641150A (en) * | 2017-02-25 | 2017-05-10 | 池州市弥优智能传动部件有限公司 | Series connection type micro ball joint |
| CN106838172A (en) * | 2017-04-10 | 2017-06-13 | 长江大学 | A kind of mud motor spiral steel ball reducer |
| WO2022166402A1 (en) * | 2021-02-02 | 2022-08-11 | 哈尔滨工业大学 | Rolling screw-based precision speed reducer for robot training system |
-
2016
- 2016-03-21 CN CN201610162096.0A patent/CN105736662A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641157A (en) * | 2017-02-15 | 2017-05-10 | 池州市邦鼐机电科技有限公司 | Screw-driven novel joint speed reducer |
| CN106641157B (en) * | 2017-02-15 | 2023-11-17 | 广州弥优机床有限公司 | Novel joint speed reducer of screw drive formula |
| CN106641150A (en) * | 2017-02-25 | 2017-05-10 | 池州市弥优智能传动部件有限公司 | Series connection type micro ball joint |
| CN106641150B (en) * | 2017-02-25 | 2023-09-08 | 广州弥优机床有限公司 | Series miniature ball joint |
| CN106838172A (en) * | 2017-04-10 | 2017-06-13 | 长江大学 | A kind of mud motor spiral steel ball reducer |
| WO2022166402A1 (en) * | 2021-02-02 | 2022-08-11 | 哈尔滨工业大学 | Rolling screw-based precision speed reducer for robot training system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160706 |