CN108180273A - Multiple harmonic drive with spherical gear - Google Patents
Multiple harmonic drive with spherical gear Download PDFInfo
- Publication number
- CN108180273A CN108180273A CN201810144007.9A CN201810144007A CN108180273A CN 108180273 A CN108180273 A CN 108180273A CN 201810144007 A CN201810144007 A CN 201810144007A CN 108180273 A CN108180273 A CN 108180273A
- Authority
- CN
- China
- Prior art keywords
- gear
- flexible external
- rigid internal
- output shaft
- spherical
- 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
Links
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
- F16H49/00—Other gearings
- F16H49/001—Wave gearings, e.g. harmonic drive transmissions
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The present invention relates to the multiple harmonic drive with spherical gear, feature is to include first and second wave producer, first and second flexible external gear, first and second rigid internal gear, housing, first and second output shaft, the first spherical gear, input shaft and second gear structure；First and second wave producer is respectively provided in first and second flexible external gear；First rigid internal gear sets in the housing and can relatively rotate, and the first flexible external gear is located in the first rigid internal gear, and the first output shaft is connect with the first rigid internal gear, and the first spherical gear is located on the first output shaft；Second flexible external gear is located in the second rigid internal gear, and the second output shaft is fixedly connected with the second flexible external gear；Input shaft is connect with the second wave producer, and second gear structure is located on input shaft, and the first spherical gear is intermeshed with second gear structure.Its advantage is：Two harmonic speed reducers can carry out space pitching and the beat of certain angle.
Description
Technical field
The present invention relates to a kind of multiple harmonic drives with spherical gear.
Background technology
At present, harmonic speed reducer has many advantages, such as that bearing capacity is strong, and gearratio is big, especially when two level harmonic speed reducer string
When using gearratio can be significantly increased, but in existing two level harmonic speed reducer in connection, and when its assembling is completed, two harmonic waves subtract
Angle has been fixed between the axis of rotation of fast device, cannot need real-time angle between adjusting axis according to using in transmission, it is impossible to
Meet the needs of some specific transmissions, reason is that existing roller gear, conical gear and non-cylindrical gear transmission
All only have one degree of freedom, no matter two one rotating shafts of transmission system are to be in relatively parallel, intersecting or position staggeredly, it
Can only transmit the changeless one-dimensional rotary motion of two axis relative positions, it is inconvenient to use.
Invention content
It is big that a kind of gearratio is provided the purpose of the present invention is overcome the deficiencies in the prior art, in use, two is humorous
Wave retarder can carry out space pitching and the beat of certain angle, the multiple harmonic drive easy to use with spherical gear.
In order to achieve the above object, the first technical solution of the invention is achieved in that it is that one kind has button
The multiple harmonic drive of wheel, including：
The flexible external gear of first wave producer, the first flexible bearing and first；First wave producer passes through the first flexible shaft
It holds and is located in the first flexible external gear, the rotation of the first wave producer drives the first flexible external gear rotation；
Clutch shaft bearing group, the first rigid internal gear, housing, the first key, the first output shaft and the first spherical gear；First rigidity
Internal gear is set in the housing and can be relatively rotated by clutch shaft bearing group, and the described first flexible external gear is located at the first rigid internal tooth
It in wheel and is intermeshed, the first flexible external gear can drive the first rigid internal gear to rotate, and the left end of first output shaft leads to
It crosses the first key to be fixedly connected with the first rigid internal gear, the first spherical gear fixation is located at the right part of the first output shaft；
Second flexible external gear, the second flexible bearing and the second wave producer；Second wave producer passes through the second flexible shaft
It holds and is located in the second flexible external gear, the rotation of the second wave producer drives the second flexible external gear rotation；
Second rigid internal gear, the second key and the second output shaft；Described second flexible external gear is located in the second rigid internal gear
And be intermeshed, the second flexible external gear can relatively rotate in the second rigid internal gear, and the left end of second output shaft leads to
The second key is crossed to be fixedly connected with the second flexible external gear；And
Third key, input shaft and second gear structure；The right part of the input shaft is consolidated by third key and the second wave producer
Fixed connection, the second gear structure fixation are located at the left part of input shaft, and the first spherical gear is mutually nibbled with second gear structure
It closes so as to make the angle between the axis of rotation of the first output shaft and the axis of rotation of the second output shaft that can in real time be adjusted in space.
In the technical program, the second gear structure is the second spherical gear or the second roller gear, second ball
Gear or roller gear and the first spherical gear are intermeshed.
In the technical program, second bearing group is further included, second rigid internal gear is arranged by second bearing group
In the second output shaft and relatively rotate.
Second of technical solution of the present invention is achieved in that it is a kind of multiple harmonic drive dress with spherical gear
It puts, including：
The flexible external gear of first wave producer, the first flexible bearing and first；First wave producer passes through the first flexible shaft
It holds and is located in the first flexible external gear, the rotation of the first wave producer drives the first flexible external gear rotation；
Clutch shaft bearing group, the first rigid internal gear, housing, the first key, the first output shaft and first gear structure；Described first just
Property internal gear set by clutch shaft bearing group and in the housing and can relatively rotate, the first flexibility external gear is located in the first rigidity
It in gear and is intermeshed, the first flexible external gear can drive the first rigid internal gear to rotate, the left end of first output shaft
It is fixedly connected by the first key with the first rigid internal gear, the first gear structure fixation is located at the right end of the first output shaft
Portion；
Second flexible external gear, the second flexible bearing and the second wave producer；Second wave producer passes through the second flexible shaft
It holds and is located in the second flexible external gear, the rotation of the second wave producer drives the second flexible external gear rotation；
Second rigid internal gear, the second key and the second output shaft；Described second flexible external gear is located in the second rigid internal gear
And be intermeshed, the second flexible external gear can relatively rotate in the second rigid internal gear, and the left end of second output shaft leads to
The second key is crossed to be fixedly connected with the second flexible external gear；And
Second spherical gear, input shaft and third key；The right part of the input shaft is fixed by third key and the second wave producer
Connection, second spherical gear fixation are located at the left part of input shaft, first gear structure and the second spherical gear be intermeshed from
And make the first output shaft（8）Axis of rotation and the second output shaft（14）Axis of rotation between angle can in real time be adjusted in space
It is whole.
In the technical program, the first gear structure is the first spherical gear or the first roller gear, second ball
Gear and the first spherical gear or the first roller gear are intermeshed.
In the technical program, second bearing group is further included, second rigid internal gear is arranged by second bearing group
On the second output shaft and relatively rotate.
The present invention compared with prior art the advantages of be：Gearratio is big, and in use, two harmonic speed reducers can carry out
The space pitching of certain angle and beat, it is easy to use.
Description of the drawings
Fig. 1 is the structure diagram of the present invention.
Specific embodiment
The specific embodiment of the present invention is described further below in conjunction with the accompanying drawings.It should be noted that for
The explanation of these embodiments is used to help understand the present invention, but do not form limitation of the invention.It is in addition, disclosed below
The each embodiment of the present invention in involved technical characteristic can be combined with each other as long as they do not conflict with each other.
In the present description, term " left side " and " right side ", etc. instructions orientation or position relationship be based on shown in the drawings
Orientation or position relationship are for only for ease of the description present invention rather than require the present invention must be with specific azimuth configuration and behaviour
Make, therefore be not considered as limiting the invention.
In the description of the present invention, term " first " to " third " be only used for description purpose, and it is not intended that instruction or
Imply relative importance.
Embodiment one
As shown in Figure 1, it is the multiple harmonic drive with spherical gear, including：
First wave producer 1, the first flexible bearing 2 and the first flexible external gear 3；First wave producer 1 is soft by first
Property bearing 2 be located in the first flexible external gear 3, the rotation of the first wave producer 1 drives the first flexible external gear 3 to rotate；
Clutch shaft bearing group 5, the first rigid internal gear 4, housing 6, the first key 7, the first output shaft 8 and the first spherical gear 9；Described
One rigid internal gear 4 is located in housing 6 and can be relatively rotated by clutch shaft bearing group 5, and the first flexibility external gear 3 is located at the
It in one rigid internal gear 4 and is intermeshed, the first flexible external gear 3 can drive the first rigid internal gear 4 to rotate, and described first is defeated
The left end of shaft 8 is fixedly connected by the first key 7 with the first rigid internal gear 4, and it is defeated that the fixation of the first spherical gear 9 is located at first
The right part of shaft 8；
Second flexible external gear 12, the second flexible bearing 11 and the second wave producer 16；Second wave producer 16 passes through
Two flexible bearings 11 are located in the second flexible external gear 12, and the rotation of the second wave producer 16 drives the second flexible 12 turns of external gear
It is dynamic；
Second rigid internal gear 10, the second key 13 and the second output shaft 14；Described second flexible external gear 12 is located at the second rigidity
In internal gear 10 and it is intermeshed, the second flexible external gear 12 can relatively rotate in the second rigid internal gear 10, and described second
The left end of output shaft 14 is fixedly connected by the second key 13 with the second flexible external gear 12；And
Third key 17, input shaft 18 and second gear structure 19；The right part of the input shaft 18 passes through third key 17 and second
Wave producer 16 is fixedly connected, and the second gear structure 19 fixes the left part for being located at input shaft 18, the first spherical gear 9 and the
Two gear structures 19 are intermeshed to make the first output shaft（8）Axis of rotation and the second output shaft（14）Axis of rotation it
Between angle can in real time be adjusted in space.
During work, the rotation of the first wave producer 1 drives the first flexible external gear 3 to rotate, and the first flexible external gear 3 rotates band
Dynamic first rigid internal gear 4 rotates, and the rotation of the first rigid internal gear 4 drives the first output shaft 8 to rotate, and the first output shaft 8 is successively
It is rotated by the first spherical gear 9 and second gear structure 19 with driven input shaft 18, the rotation of input shaft 18 drives the second wave producer
16 rotations, the rotation of the second wave producer 16 drive the second output shaft 14 to rotate, and the second gear structure 19 can be Cylinder Gear
Wheel or angular wheel or spur gear or spherical gear, the first output shaft（8）Axis of rotation and the second output shaft（14）Rotating shaft
Angle between line can in real time adjust in space, be suitble to different stations, easy to use.
In the present embodiment, the second gear structure 19 is the second spherical gear or the second roller gear, second ball
Gear or the second roller gear are intermeshed with the first spherical gear 9.
In the present embodiment, second bearing group 15 is further included, second rigid internal gear 10 passes through second bearing group 15
It is set on the second output shaft 14 and relatively rotates.
Embodiment two
As shown in Figure 1, it is the multiple harmonic drive with spherical gear, including
First wave producer 1, the first flexible bearing 2 and the first flexible external gear 3；First wave producer 1 is soft by first
Property bearing 2 be located in the first flexible external gear 3, the rotation of the first wave producer 1 drives the first flexible external gear 3 to rotate；
Clutch shaft bearing group 5, the first rigid internal gear 4, housing 6, the first key 7, the first output shaft 8 and first gear structure 9；It is described
First rigid internal gear 4 is located in housing 6 and can be relatively rotated by clutch shaft bearing group 5, and the described first flexible external gear 3 is located at
In first rigid internal gear 4 and it is intermeshed, the first flexible external gear 3 can drive the first rigid internal gear 4 to rotate, and described first
The left end of output shaft 8 is fixedly connected by the first key 7 with the first rigid internal gear 4, and the first gear structure 9 fixation is located at the
The right part of one output shaft 8；
Second flexible external gear 12, the second flexible bearing 11 and the second wave producer 16；Second wave producer 16 passes through
Two flexible bearings 11 are located in the second flexible external gear 12, and the rotation of the second wave producer 16 drives the second flexible 12 turns of external gear
It is dynamic；
Second rigid internal gear 10, the second key 13 and the second output shaft 14；Described second flexible external gear 12 is located at the second rigidity
In internal gear 10 and it is intermeshed, the second flexible external gear 12 can relatively rotate in the second rigid internal gear 10, and described second
The left end of output shaft 14 is fixedly connected by the second key 13 with the second flexible external gear 12；And
Second spherical gear 19, input shaft 18 and third key 17；The right part of the input shaft 18 passes through 17 and second wave of third key
Generator 16 is fixedly connected, and second spherical gear 19 fixes the left part for being located at input shaft 18, first gear structure 9 and second
Spherical gear 19 is intermeshed to make the first output shaft（8）Axis of rotation and the second output shaft（14）Axis of rotation between
Angle can in real time adjust in space.
During work, the rotation of the first wave producer 1 drives the first flexible external gear 3 to rotate, and the first flexible external gear 3 rotates band
Dynamic first rigid internal gear 4 rotates, and the rotation of the first rigid internal gear 4 drives the first output shaft 8 to rotate, and the first output shaft 8 is successively
It is rotated by 9 and second spherical gear 19 of first gear structure with driven input shaft 18, the rotation of input shaft 18 drives the second wave producer
16 rotations, the rotation of the second wave producer 16 drive the second output shaft 14 to rotate, and the first gear structure 9 can be roller gear
Or angular wheel or spur gear or spherical gear, the first output shaft（8）Axis of rotation and the second output shaft（14）Axis of rotation
Between angle can in real time be adjusted in space, be suitble to different station, it is easy to use.
In the present embodiment, the first gear structure 9 is the first spherical gear or roller gear, second spherical gear 19
It is intermeshed with the first spherical gear or the first roller gear.
In the present embodiment, second bearing group 15 is further included, second rigid internal gear 10 passes through second bearing group 15
It is set on the second output shaft 14 and relatively rotates.
Embodiments of the present invention are explained in detail above in association with attached drawing, but the present invention is not limited to described reality
Apply mode.For the ordinary skill in the art, in the case where not departing from the principle of the present invention and objective to these
Embodiment carries out a variety of variations, modification, replacement and deformation and still falls within the scope of the present invention.
Claims (6)
1. a kind of multiple harmonic drive with spherical gear, it is characterised in that including：
First wave producer（1）, the first flexible bearing（2）And the first flexible external gear（3）；First wave producer（1）It is logical
Cross the first flexible bearing（2）It is located at the first flexible external gear（3）In, the first wave producer（1）Rotation drives the first flexible external tooth
Wheel（3）Rotation；
Clutch shaft bearing group（5）, the first rigid internal gear（4）, housing（6）, the first key（7）, the first output shaft（8）And first button
Wheel（9）；First rigid internal gear（4）Pass through clutch shaft bearing group（5）It is located at housing（6）In and can relatively rotate, described the
One flexible external gear（3）It is located at the first rigid internal gear（4）In and be intermeshed, the first flexible external gear（3）First can be driven
Rigid internal gear（4）Rotation, first output shaft（8）Left end pass through the first key（7）With the first rigid internal gear（4）It is fixed
Connection, first spherical gear（9）Fixation is located at the first output shaft（8）Right part；
Second flexible external gear（12）, the second flexible bearing（11）And second wave producer（16）；Second wave producer
（16）Pass through the second flexible bearing（11）It is located at the second flexible external gear（12）In, the second wave producer（16）Rotation drives second
Flexible external gear（12）Rotation；
Second rigid internal gear（10）, the second key（13）And second output shaft（14）；Described second flexible external gear（12）It is located at
Second rigid internal gear（10）In and be intermeshed, the second flexible external gear（12）It can be in the second rigid internal gear（10）In it is opposite
Rotation, second output shaft（14）Left end pass through the second key（13）With the second flexible external gear（12）It is fixedly connected；And
Third key（17）, input shaft（18）And second gear structure（19）；The input shaft（18）Right part pass through third key
（17）With the second wave producer（16）It is fixedly connected, the second gear structure（19）Fixation is located at input shaft（18）Left end
Portion, first spherical gear（9）With second gear structure（19）Intermeshing is so as to make the first output shaft（8）Axis of rotation with
Second output shaft（14）Axis of rotation between angle can in real time be adjusted in space.
2. the multiple harmonic drive according to claim 1 with spherical gear, it is characterised in that the second gear knot
Structure（19）It is the second spherical gear or the second roller gear, second spherical gear or the second roller gear and the first spherical gear（9）
Intermeshing.
3. the multiple harmonic drive according to claim 1 with spherical gear, it is characterised in that further include second bearing
Group（15）, second rigid internal gear（10）Pass through second bearing group（15）It is set in the second output shaft（14）And opposite turn
It is dynamic.
4. a kind of multiple harmonic drive with spherical gear, it is characterised in that including：
First wave producer（1）, the first flexible bearing（2）And the first flexible external gear（3）；First wave producer（1）It is logical
Cross the first flexible bearing（2）It is located at the first flexible external gear（3）In, the first wave producer（1）Rotation drives the first flexible external tooth
Wheel（3）Rotation；
Clutch shaft bearing group（5）, the first rigid internal gear（4）, housing（6）, the first key（7）, the first output shaft（8）And first gear
Structure（9）；First rigid internal gear（4）Pass through clutch shaft bearing group（5）It is located at housing（6）In and can relatively rotate, it is described
First flexible external gear（3）It is located at the first rigid internal gear（4）In and be intermeshed, the first flexible external gear（3）Can be driven
One rigid internal gear（4）Rotation, first output shaft（8）Left end pass through the first key（7）With the first rigid internal gear（4）Gu
Fixed connection, the first gear structure（9）Fixation is located at the first output shaft（8）Right part；
Second flexible external gear（12）, the second flexible bearing（11）And second wave producer（16）；Second wave producer
（16）Pass through the second flexible bearing（11）It is located at the second flexible external gear（12）In, the second wave producer（16）Rotation drives second
Flexible external gear（12）Rotation；
Second rigid internal gear（10）, the second key（13）And second output shaft（14）；Described second flexible external gear（12）It is located at
Second rigid internal gear（10）In and be intermeshed, the second flexible external gear（12）It can be in the second rigid internal gear（10）In it is opposite
Rotation, second output shaft（14）Left end pass through the second key（13）With the second flexible external gear（12）It is fixedly connected；And
Second spherical gear（19）, input shaft（18）And third key（17）；The input shaft（18）Right part pass through third key
（17）With the second wave producer（16）It is fixedly connected, second spherical gear（19）Fixation is located at input shaft（18）Left part,
First gear structure（9）With the second spherical gear（19）Intermeshing is so as to make the first output shaft（8）Axis of rotation and second defeated
Shaft（14）Axis of rotation between angle can in real time be adjusted in space.
5. the multiple harmonic drive according to claim 4 with spherical gear, it is characterised in that the first gear knot
Structure（9）It is the first spherical gear or the first roller gear, second spherical gear（19）With the first spherical gear or the first roller gear
Intermeshing.
6. the multiple harmonic drive according to claim 4 with spherical gear, it is characterised in that further include second bearing
Group（15）, second rigid internal gear（10）Pass through second bearing group（15）It is set in the second output shaft（14）Upper and opposite turn
It is dynamic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810144007.9A CN108180273A (en) | 2018-02-12 | 2018-02-12 | Multiple harmonic drive with spherical gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810144007.9A CN108180273A (en) | 2018-02-12 | 2018-02-12 | Multiple harmonic drive with spherical gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108180273A true CN108180273A (en) | 2018-06-19 |
Family
ID=62552585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810144007.9A Pending CN108180273A (en) | 2018-02-12 | 2018-02-12 | Multiple harmonic drive with spherical gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108180273A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019153714A1 (en) * | 2018-02-12 | 2019-08-15 | 顺德职业技术学院 | Complex harmonic transmission device capable of regulating angle in real time |
| CN111536217A (en) * | 2020-05-06 | 2020-08-14 | 北京国华恒源科技开发有限公司 | Harmonic reducer with adjustable input shaft angle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6318210B1 (en) * | 1998-03-25 | 2001-11-20 | Harmonic Drive Systems, Inc. | Phase regulating apparatus |
| CN202108943U (en) * | 2011-05-31 | 2012-01-11 | 国营红峰机械厂 | Skew angle harmonic speed reducer |
| CN103758932A (en) * | 2014-01-26 | 2014-04-30 | 浙江来福谐波传动股份有限公司 | Large-reduction-ratio angular harmonic speed reduction device |
| CN203962865U (en) * | 2014-07-22 | 2014-11-26 | 湖北诺伯特科技有限公司 | A kind of micro-line segment other than ring type continuous tooth spherical crown gear drive |
| CN106641108A (en) * | 2016-12-19 | 2017-05-10 | 杭州航验环境技术有限公司 | Closed harmonic gear speed reducer |
| CN207975224U (en) * | 2018-02-12 | 2018-10-16 | 顺德职业技术学院 | Multiple harmonic drive with spherical gear |
-
2018
- 2018-02-12 CN CN201810144007.9A patent/CN108180273A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6318210B1 (en) * | 1998-03-25 | 2001-11-20 | Harmonic Drive Systems, Inc. | Phase regulating apparatus |
| CN202108943U (en) * | 2011-05-31 | 2012-01-11 | 国营红峰机械厂 | Skew angle harmonic speed reducer |
| CN103758932A (en) * | 2014-01-26 | 2014-04-30 | 浙江来福谐波传动股份有限公司 | Large-reduction-ratio angular harmonic speed reduction device |
| CN203962865U (en) * | 2014-07-22 | 2014-11-26 | 湖北诺伯特科技有限公司 | A kind of micro-line segment other than ring type continuous tooth spherical crown gear drive |
| CN106641108A (en) * | 2016-12-19 | 2017-05-10 | 杭州航验环境技术有限公司 | Closed harmonic gear speed reducer |
| CN207975224U (en) * | 2018-02-12 | 2018-10-16 | 顺德职业技术学院 | Multiple harmonic drive with spherical gear |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019153714A1 (en) * | 2018-02-12 | 2019-08-15 | 顺德职业技术学院 | Complex harmonic transmission device capable of regulating angle in real time |
| CN111536217A (en) * | 2020-05-06 | 2020-08-14 | 北京国华恒源科技开发有限公司 | Harmonic reducer with adjustable input shaft angle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2699690A (en) | Speed reduction gearing | |
| CN108194612A (en) | The multiple harmonic drive that can be adjusted the angle in real time | |
| CN108180273A (en) | Multiple harmonic drive with spherical gear | |
| CN108312175A (en) | A kind of wrist joint and its method of operating of mechanical arm | |
| CN105333079B (en) | A kind of single shaft is at the uniform velocity inputted, biaxial variable-speed swings the oscillating tooth cam mechanism exported | |
| JPH0585785B2 (en) | ||
| CN207975224U (en) | Multiple harmonic drive with spherical gear | |
| CN207975221U (en) | The multiple harmonic drive that can be adjusted the angle in real time | |
| US6571652B2 (en) | Gyroscopic torque converter | |
| US6729197B2 (en) | Gyroscopic torque converter | |
| CN202122677U (en) | Two-degree of freedom differential external skeleton | |
| CN109773813A (en) | A kind of stepless speed change type flexible finger | |
| CN206703061U (en) | Robot principal arm and three axles crawl robot | |
| CN206296934U (en) | Robot two-freedom degree joint structure | |
| CN209665425U (en) | A kind of robot wrist structure | |
| CN207750456U (en) | One kind thickens joint of robot drive mechanism | |
| CN108591429A (en) | A kind of gear reduction unit | |
| RU2008106747A (en) | DRIVE DEVICE FOR ROLLERS OF MACHINES USED FOR PROCESSING METAL PRODUCTS | |
| JPS5996450U (en) | Marine gear transmission | |
| US3260070A (en) | Universal joint | |
| CN106438738A (en) | Vertical connecting universal joint rotating in manner of forward-reverse alternating manner | |
| CN208958165U (en) | Three-D ultrasonic mechanical probe | |
| US9743998B2 (en) | Dental preparation instrument having a tool that rotates in an alternately reversible manner | |
| CN106545632B (en) | A kind of efficient Purely mechanical reversing mechanism | |
| CN207648067U (en) | Contiuously variable transmission |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180619 |
|
| WD01 | Invention patent application deemed withdrawn after publication |