CN106321673A - Thermal-insulation and vibration attenuationslide bar type universal coupling - Google Patents
Thermal-insulation and vibration attenuationslide bar type universal coupling Download PDFInfo
- Publication number
- CN106321673A CN106321673A CN201611011780.5A CN201611011780A CN106321673A CN 106321673 A CN106321673 A CN 106321673A CN 201611011780 A CN201611011780 A CN 201611011780A CN 106321673 A CN106321673 A CN 106321673A
- Authority
- CN
- China
- Prior art keywords
- heat insulation
- slide bar
- vibration
- fork arm
- coupling
- 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
- 238000009413 insulation Methods 0.000 title claims abstract description 78
- 230000008878 coupling Effects 0.000 title claims abstract description 73
- 238000010168 coupling process Methods 0.000 title claims abstract description 73
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 73
- 230000000694 effects Effects 0.000 claims abstract description 7
- 238000013016 damping Methods 0.000 claims description 58
- 230000000712 assembly Effects 0.000 claims description 15
- 238000000429 assembly Methods 0.000 claims description 15
- 239000007943 implant Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 3
- 230000015556 catabolic process Effects 0.000 claims description 2
- 239000000428 dust Substances 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 5
- 239000002360 explosive Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
- F16D3/202—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints
- F16D3/205—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part
- F16D3/2055—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part having three pins, i.e. true tripod joints
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2300/00—Special features for couplings or clutches
- F16D2300/22—Vibration damping
Abstract
The invention discloses a thermal insulation and vibration attenuationslide bar type universal coupling which comprises an input shaft, a driving shaft connecting disc, a trifurcate rod assembly, a sliding rod assembly, a knuckle bearing, a thermal insulation and vibration attenuation sleeve, a driven shaft connecting disc and an output shaft. The input shaft is connected with the driving shaft connecting disc through a spline, the driving shaft connecting disc is in corresponding connection with the trifurcate rod assembly, the head of the sliding rod assembly is in fastened connection with the trifurcate rod assembly through the knuckle bearing, the tail portion of the sliding rod assembly is in corresponding connection with the driven shaft connecting disc, the thermal insulation and vibration attenuation sleeve is installed in a round through hole of the driven shaft connecting disc, and the output shaft is connected with the driven shaft connecting disc through a spline. The thermal insulation and vibration attenuationslide bar type universal coupling adopts multiple different thermal insulation and vibration attenuation measures to isolate heat produced during machine operation and vibration steps and achieves a thermal insulation and vibration attenuation effect to the most degree, and the service life of the coupling is prolonged.
Description
Technical field
The present invention relates to a kind of heat insulation damping type Hooks coupling universal coupling, a kind of in mechanical driving device
Heat insulation damping type slide bar type Hooks coupling universal coupling.
Background technology
Along with development and the improving constantly of people's exploratory development level of science and technology, people are to the exploration in the world and research
More and more deep.Simultaneously in order to enable deeper into carry out scientific and technical research, people are more and more higher to the requirement of mechanical device, because of
This, in order to meet the Production requirement of people, preferably manufactures, it would be desirable to a kind of high-strength high temperature-resistant of design is heat insulation
The shaft coupling of vibration damping makes machine to be preferably operated.
But, but there is certain deficiency in existing Hooks coupling universal coupling, Hooks coupling universal coupling on the market is in machine driving mistake
Journey can not control temperature well, it is easy to the phenomenon such as dilatancy or stuck sintering occurs；It is mechanical in transmission process,
Also vibration can be inevitably generated.And the most heat insulation damping type Hooks coupling universal coupling extremely lacks, this causes machinery
Reliable power transmission smoothly can not be carried out, also shorten the service life of machinery simultaneously and cause its especially heavy machine in machinery
Tool can not be widely applied.
Summary of the invention
The present invention is the deficiency overcoming existing Hooks coupling universal coupling, it is provided that a kind of heat insulation and heat control, vibration damping, easy to use, life-span
The slide bar type Hooks coupling universal coupling long, work efficiency is high.
For reaching above-mentioned purpose, the technical solution adopted in the present invention is as follows:
A kind of heat insulation damping type slide bar type Hooks coupling universal coupling, including: power shaft, driving shaft connection dish, three fork arm assemblies, cunning
Bar assembly, oscillating bearing, heat insulation vibration reducing sleeve, driven axle connection dish and output shaft；Described power shaft is with described driving shaft even
Flange is connected by spline；Described driving shaft connection dish is connected with described three fork arm assemblies；The head annulus of described slide bar assembly
Shape cylinder is fastenedly connected with described three fork arm assemblies by described oscillating bearing, and afterbody is connected the circle of dish and leads to described driven axle
Hole connects；Described heat insulation vibration reducing sleeve is embedded in three manholes of described driven axle connection dish；Described output shaft and institute
State driven axle connection dish to be connected by spline.
Further, described power shaft is connected the connection spline of dish with described driving shaft, and described output shaft is with described
The connection spline of driven axle connection dish is rectangular spline, and compared to other types spline, rectangular spline processing is convenient, also
It is easier to ensure the precision of centering.
Further, described three fork arm assemblies are installed on inside described driving shaft connection dish, the key position to shaft coupling
There is certain protected effect, prevent from the foreign material dropped inside dust and machine from falling into inside shaft coupling causing shaft coupling to block,
Abrasion aggravation or breakdown.
Further, described driving shaft connection dish coupling is 120 ° around axis and three circular holes is distributed, for described three
Fixing of three of fork arm assembly radially fork arm；Described driven axle connection coiling axis is 120 ° and three manholes is distributed,
Connection for described slide bar assembly afterbody.
Further, described three fork arm assemblies include three fork arms, heat insulation damping pad, heat insulation vibration damping implant, vibration damping bullet
Spring, three fork arm union joints, the radially built-in described heat insulation vibration damping implant of fork arm head perforate of three on described three fork arms, in institute
Stating and insert described heat insulation damping pad on the radial direction fork arm connection dish of three fork arms, described shock-absorbing spring is placed in the footpath of described three fork arms
Inside fork arm connection dish, the radial direction fork arm connection dish opening of described three fork arms seals with described three fork arm union joints, thus
Forming one and close complete structure, the most described three fork arm assemblies absorb heat and the vibration that all directions produce, make ten thousand
To shaft coupling, there is obvious heat insulation effectiveness in vibration suppression.
Further, described slide bar assembly includes slide bar and heat insulation damping washer, and described slide bar is described slide bar assembly
Main body, described heat insulation damping washer is arranged on described slide bar head circular cylinder internal ring, and connects with the fastening of described oscillating bearing
Connecing, described slide bar afterbody is cylindrical bar, and cylindrical bar is arranged in the manhole of described driven axle connection dish, can be in circular hole
Slide.
Further, three cylindrical holes in described driven axle connection dish coupling are embedded with described heat insulation vibration reducing sleeve,
The vibration passed over and heat are completely cut off outside in the lump.
Further, described heat insulation damping pad, described heat insulation damping washer, described heat insulation vibration reducing sleeve and described every
Hot vibration damping implant uses rubber-like high temperature resistant heat insulation damping material, wherein said heat insulation damping washer and described heat insulation subtract
The sleeve that shakes uses ripple glaze design Anti-skid shock-absorbing；Described shock-absorbing spring is noiseless alloy material, all optimal in order to realize
Heat insulation vibration-damping function.
The work process of this heat insulation damping type slide bar type Hooks coupling universal coupling approximately as: in the course of the work, power shaft band
Dynamic driving shaft connection dish rotates, and driving shaft connection dish is by driving the rotation of three fork arm assemblies to carry out band moving slide-bar component operation, sliding
In bar assembly, the head of slide bar is fastenedly connected by oscillating bearing and three fork arm assemblies, and slide bar afterbody is the three of driven axle connection dish
Sliding in individual manhole and drive driven axle connection dish to produce displacement, driven axle connects dribbling and moves the rotation of output shaft to realize ten thousand
To the operating of shaft coupling, absorb vibration to the full extent and cut off the transmission of heat, serving heat insulation and heat control vibration damping
Effect.
The invention has the beneficial effects as follows:
1, three fork arm assemblies utilize heat insulation damping pad and shock-absorbing spring, the vibration produced when absorbing machine operation and heat
And set up first heat insulation vibration damping defence line.
2, heat insulation damping washer use high temperature resistant heat insulation damping material make, the oscillating bearing of each slide bar and correspondence thereof it
Between be all embedded with heat insulation damping washer, position is compact, further increasing the heat insulation damping capacity of Hooks coupling universal coupling, and it is overheated to prevent
Deformation, improves ability to work and the service life of Hooks coupling universal coupling.
3, the heat insulation vibration reducing sleeve in driven axle connection dish circular hole, strengthens the heat insulation vibration damping effect of Hooks coupling universal coupling again
Really, three heat insulation vibration damping defence lines, road, has cut off the transmission of vibration and heat to the full extent altogether.
4, in the key component of shaft coupling is built in driving shaft connection dish, decreases unexpected generation, extend shaft coupling
Service life.
5, the present invention has simple in construction, and it is convenient to change, and processing cost is low, good heat-insulation effect, and service life is long, and application is more
Add and extensively wait remarkable advantage.
Accompanying drawing explanation
Fig. 1: the present invention heat insulation damping type slide bar type Hooks coupling universal coupling three-dimensional structure diagram.
Fig. 2: the present invention heat insulation damping type slide bar type Hooks coupling universal coupling explosive view.
Fig. 3: the present invention heat insulation damping type slide bar type Hooks coupling universal coupling three fork arm assembly explosive view.
Fig. 4: the present invention heat insulation damping type slide bar type Hooks coupling universal coupling slide bar assembly explosive view.
In figure: 1-power shaft, 2-driving shaft connection dish, 3-tri-fork arm, the heat insulation damping pad of 4-, the heat insulation vibration damping of 5-is filled
Thing, 6-shock-absorbing spring, 7-slide bar, the heat insulation damping washer of 8-, 9-oscillating bearing, 10-tri-fork arm union joint, the heat insulation shock-reducing sleeve of 11-
Cylinder, 12-driven axle connection dish, 13-output shaft.
Detailed description of the invention
The present invention will be further described below in conjunction with the accompanying drawings.
Heat insulation damping type slide bar type Hooks coupling universal coupling as shown in Figure 1,2,3, 4, including power shaft 1, driving shaft connection dish
2, three fork arm assemblies 3,4,5,6,10, slide bar assembly 7,8, oscillating bearing 9, heat insulation vibration reducing sleeve 11, driven axle connection dish 12 with
And output shaft 13.
Power shaft 1 is connected by rectangular spline interference with being actively connected dish 2, driving shaft connection dish 2 and three of three fork arms 3
Radially fork arm correspondence connects, and three of three fork arms 3 are filled with heat insulation vibration damping inside the radial direction fork arm that 120 ° of axis is distributed and fill
Thing 5, is inserted with heat insulation damping pad 4 in the radial direction fork arm connection dish of three fork arms 3, and shock-absorbing spring 6 is pressed into by three fork arm union joints 10
In three fork arms 3 and seal whole three fork arm modular constructions, the head circular cylinder internal ring of slide bar 7 is provided with heat insulation damping washer
8, it is fastenedly connected by oscillating bearing 9 with the radial direction fork arm of three fork arms 3, the afterbody cylindrical bar of slide bar 7 is in driven axle connection dish 12
Three manholes in slide, it is 120 ° of distributions that heat insulation vibration reducing sleeve 11 is embedded in three of driven axle connection dish 12 around axis
In manhole, driven axle connection dish 12 is connected by rectangular spline interference with output shaft 13.
In the course of the work, power shaft 1 is connected dish 2 and is connected by rectangular spline with driving shaft, and driving shaft connection dish 2 drives
Three of three fork arms 3 radially fork arm produces motion, utilizes the heat insulation damping pad 4 of three fork arm assemblies, heat insulation vibration damping to fill simultaneously
Thing 5 and shock-absorbing spring 6 absorb heat and the vibration that machine operation produces, and the radial direction fork arm of three fork arms 3 leads to the head of slide bar 7
Crossing oscillating bearing 9 and be fastenedly connected transmission moment of torsion, the afterbody of slide bar 7 is slip band in three manholes of driven axle connection dish 12
Dynamic driven axle connection dish 12 produces displacement, heat insulation on heat insulation damping washer 8 in slide bar assembly and driven axle connection dish 12
Vibration reducing sleeve 11 will absorb vibration and the heat of remnants, farthest isolation vibration and the propagation of heat, driven axle further
Connection dish 12 drives the rotation of output shaft 13 with the operating realizing Hooks coupling universal coupling.
Protection scope of the present invention is not limited thereto, and any those familiar with the art the invention discloses
Technical scope in, the change that can readily occur in or replacement, all should contain within protection scope of the present invention.Therefore, this
Bright protection domain should be as the criterion with the protection domain that claim is defined.
Claims (7)
1. a heat insulation damping type slide bar type Hooks coupling universal coupling, it is characterised in that: include power shaft, driving shaft connection dish, trident
Bar assembly, slide bar assembly, oscillating bearing, heat insulation vibration reducing sleeve, driven axle connection dish and output shaft；Described power shaft is with described
Driving shaft connection dish is connected by spline；Described driving shaft connection dish is connected with described three fork arm assemblies；Described slide bar assembly
The circular cylinder of head is fastenedly connected with described three fork arm assemblies by described oscillating bearing, and afterbody is connected dish with described driven axle
Manhole connect；Described heat insulation vibration reducing sleeve is embedded in three manholes of described driven axle connection dish；Described defeated
Shaft is connected dish with described driven axle and is connected by spline.
A kind of heat insulation damping type slide bar type Hooks coupling universal coupling the most as claimed in claim 1, it is characterised in that: described power shaft with
The connection spline of described driving shaft connection dish, and described output shaft is connected the connection spline of dish and is rectangle with described driven axle
Spline, compared to other types spline, rectangular spline processing is convenient, is also easier to ensure the precision of centering.
A kind of heat insulation damping type slide bar type Hooks coupling universal coupling the most as claimed in claim 1, it is characterised in that: described three fork arm groups
Part is installed on inside described driving shaft connection dish, and the key position of shaft coupling is had certain protected effect, prevent dust and
The foreign material dropped inside machine fall into cause shaft coupling to block inside shaft coupling, wear and tear aggravation or breakdown.
A kind of heat insulation damping type slide bar type Hooks coupling universal coupling the most as claimed in claim 1, it is characterised in that: described driving shaft is even
Flange coupling is 120 ° around axis and three circular holes is distributed, fixing for three of described three fork arm assemblies radially fork arms；
Described driven axle connection coiling axis is 120 ° and three manholes is distributed, for the connection of described slide bar assembly afterbody.
A kind of heat insulation damping type slide bar type Hooks coupling universal coupling the most as claimed in claim 1, it is characterised in that: described three fork arm groups
Part includes three fork arms, heat insulation damping pad, heat insulation vibration damping implant, shock-absorbing spring, three fork arm union joints, on described three fork arms
Three the radially built-in described heat insulation vibration damping implant of fork arm head perforate, insertions on the radial direction fork arm connection dish of described three fork arms
Described heat insulation damping pad, described shock-absorbing spring is placed in inside the radial direction fork arm connection dish of described three fork arms, described three fork arms
Radially fork arm connection dish opening seals with described three fork arm union joints, thus forms one and close complete structure, is conducive to
Described three fork arm assemblies absorb heat and the vibration that all directions produce, and make Hooks coupling universal coupling have obvious heat insulation vibration damping effect
Really.
A kind of heat insulation damping type slide bar type Hooks coupling universal coupling the most as claimed in claim 1, it is characterised in that: described slide bar assembly
Including slide bar and heat insulation damping washer, described slide bar is the main body of described slide bar assembly, and described heat insulation damping washer is arranged on institute
Stating slide bar head circular cylinder internal ring, and be fastenedly connected with described oscillating bearing, described slide bar afterbody is cylindrical bar, cylindrical bar
It is arranged in the manhole of described driven axle connection dish, can slide in circular hole.
A kind of heat insulation damping type slide bar type Hooks coupling universal coupling the most as claimed in claim 1, it is characterised in that: described driven axle is even
Three cylindrical holes in flange coupling are embedded with described heat insulation vibration reducing sleeve, the vibration passed over is completely cut off in the lump with heat
Outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611011780.5A CN106321673A (en) | 2016-11-17 | 2016-11-17 | Thermal-insulation and vibration attenuationslide bar type universal coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611011780.5A CN106321673A (en) | 2016-11-17 | 2016-11-17 | Thermal-insulation and vibration attenuationslide bar type universal coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106321673A true CN106321673A (en) | 2017-01-11 |
Family
ID=57816174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611011780.5A Pending CN106321673A (en) | 2016-11-17 | 2016-11-17 | Thermal-insulation and vibration attenuationslide bar type universal coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106321673A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061528A (en) * | 2017-03-23 | 2017-08-18 | 青岛科技大学 | The Non-centering CV joint that simply connected vibration shock isolation is hit |
| CN108591295A (en) * | 2018-07-02 | 2018-09-28 | 青岛科技大学 | A kind of sliding constant angular velocity Hooks coupling universal coupling of compact |
| CN108916258A (en) * | 2018-09-17 | 2018-11-30 | 青岛科技大学 | Three fork arm spring column pin formula Hooks coupling universal couplings |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5590723A (en) * | 1978-12-29 | 1980-07-09 | Toyota Motor Corp | Tripod type equal-velocity universal joint |
| US4336696A (en) * | 1979-02-09 | 1982-06-29 | Toyota Jidosha Kogyo Kabushiki Kaisha | Tripod type constant velocity universal joint |
| JP2008045571A (en) * | 2006-08-10 | 2008-02-28 | Ntn Corp | Vibration absorbing and sliding type constant velocity joint |
| CN101725643A (en) * | 2008-10-13 | 2010-06-09 | 现代自动车株式会社 | Constant velocity joint |
| CN103470649A (en) * | 2013-09-26 | 2013-12-25 | 青岛科技大学 | Shock-absorbing three-fork-rod axially-and-fixedly-connected constant-angular-velocity universal coupling |
| CN203477113U (en) * | 2013-09-26 | 2014-03-12 | 青岛科技大学 | Vibration-reducing tripod inclined sliding block type constant angular velocity universal joint |
| CN206458731U (en) * | 2016-11-17 | 2017-09-01 | 青岛科技大学 | A kind of heat-insulated damping type slide bar type Hooks coupling universal coupling |
-
2016
- 2016-11-17 CN CN201611011780.5A patent/CN106321673A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5590723A (en) * | 1978-12-29 | 1980-07-09 | Toyota Motor Corp | Tripod type equal-velocity universal joint |
| US4336696A (en) * | 1979-02-09 | 1982-06-29 | Toyota Jidosha Kogyo Kabushiki Kaisha | Tripod type constant velocity universal joint |
| JP2008045571A (en) * | 2006-08-10 | 2008-02-28 | Ntn Corp | Vibration absorbing and sliding type constant velocity joint |
| CN101725643A (en) * | 2008-10-13 | 2010-06-09 | 现代自动车株式会社 | Constant velocity joint |
| CN103470649A (en) * | 2013-09-26 | 2013-12-25 | 青岛科技大学 | Shock-absorbing three-fork-rod axially-and-fixedly-connected constant-angular-velocity universal coupling |
| CN203477113U (en) * | 2013-09-26 | 2014-03-12 | 青岛科技大学 | Vibration-reducing tripod inclined sliding block type constant angular velocity universal joint |
| CN206458731U (en) * | 2016-11-17 | 2017-09-01 | 青岛科技大学 | A kind of heat-insulated damping type slide bar type Hooks coupling universal coupling |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061528A (en) * | 2017-03-23 | 2017-08-18 | 青岛科技大学 | The Non-centering CV joint that simply connected vibration shock isolation is hit |
| CN107061528B (en) * | 2017-03-23 | 2023-10-10 | 青岛科技大学 | Single-connection vibration-damping impact-resistant non-centering constant-angular-speed universal joint |
| CN108591295A (en) * | 2018-07-02 | 2018-09-28 | 青岛科技大学 | A kind of sliding constant angular velocity Hooks coupling universal coupling of compact |
| CN108916258A (en) * | 2018-09-17 | 2018-11-30 | 青岛科技大学 | Three fork arm spring column pin formula Hooks coupling universal couplings |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170111 |