CN105626800B - Ball reducer - Google Patents
Ball reducer Download PDFInfo
- Publication number
- CN105626800B CN105626800B CN201610185270.3A CN201610185270A CN105626800B CN 105626800 B CN105626800 B CN 105626800B CN 201610185270 A CN201610185270 A CN 201610185270A CN 105626800 B CN105626800 B CN 105626800B
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- China
- Prior art keywords
- inner ring
- chute
- installation portion
- disk
- ball
- 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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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 31
- 238000009434 installation Methods 0.000 claims abstract description 50
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 abstract description 14
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000010935 stainless steel Substances 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
- F16H—GEARING
- F16H13/00—Gearing for conveying rotary motion with constant gear ratio by friction between rotary members
- F16H13/02—Gearing for conveying rotary motion with constant gear ratio by friction between rotary members without members having orbital motion
- F16H13/04—Gearing for conveying rotary motion with constant gear ratio by friction between rotary members without members having orbital motion with balls or with rollers acting in a similar manner
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Friction Gearing (AREA)
- Gear Transmission (AREA)
Abstract
The present invention relates to decelerator technical field, in particular disclose ball reducer, including axis body, axis body includes installation portion and the eccentric part being connected with installation portion, eccentric part is equiped with drive disk, installation portion is equiped with output panel, output panel includes inner ring, outer ring and multiple balls, inner ring is sheathed on installation portion, outer ring is sheathed on inner ring, and multiple balls are installed between inner ring and outer ring, and drive disk is provided with hypocycloid annular groove close to the side of inner ring, inner ring is provided with epicycloid annular groove close to the side of drive disk, and multiple spin are equiped between hypocycloid annular groove and epicycloid annular groove;During actual use, the axis body and motor connection of ball reducer of the present invention, inner ring is as output shaft, motion is transmitted using the rolling of spin, realize the deceleration to motor, friction when rolling friction during rolling ball rolls is engaged compared to conventional gears decelerator middle gear is smaller, and loss is small, greatly promotes transmission efficiency.
Description
Technical field
The present invention relates to decelerator technical field, ball reducer is in particular disclosed.
Background technology
Decelerator can be used in most machinery production equipments, traditional decelerator is realized using the engagement of gear to be subtracted
Speed, with the progress of industrial modernization technology, increasing product realizes automated production, in the production process of automation
In, it is necessary to using robot replace it is original manually carry out every operation, each robot is required to use multiple decelerators.
Frictional force when being engaged due to conventional gears decelerator middle gear is bigger, and loss during transmission is also just bigger,
Transmission efficiency is relatively low, it is contemplated that a robot can use multiple decelerators, and a complete production line generally require it is multiple
Robot, in this way, will result in larger energy loss.
The content of the invention
In order to overcome shortcoming and defect present in prior art, it is an object of the invention to provide ball reducer, rubs
Consumption of wearing is small, greatly promotes transmission efficiency.
To achieve the above object, ball reducer of the invention, including axis body, axis body include installation portion and connected with installation portion
The eccentric part connect, eccentric part are equiped with drive disk, and installation portion is equiped with output panel, and output panel includes inner ring, outer ring and multiple rollings
Pearl, inner ring are sheathed on installation portion, and outer ring is sheathed on inner ring, and multiple balls are installed between inner ring and outer ring, and drive disk is close to interior
The side of circle is provided with hypocycloid annular groove, and inner ring is provided with epicycloid annular groove, hypocycloid annular groove and epicycloid close to the side of drive disk
Multiple spin are equiped between annular groove.
Preferably, the outer ring includes the first circle body and the second circle body being connected with the first circle body, the first circle body and second
Circle body is sheathed on inner ring.
Preferably, retainer is also equiped between the inner ring and outer ring, ball is located in retainer, multiple balls that
This is arranged at intervals.
Preferably, the installation portion includes the first installation portion and the second installation portion, and eccentric part is located at the first installation portion and
Between two installation portions, inner ring is sheathed on the first installation portion, and the second installation portion is arranged with fixed disk.
Preferably, the decelerator also includes locking disk, and locking disk is provided with through hole, and outer ring is installed in through hole, and lock disk
It is connected with fixed disk.
Preferably, the decelerator also includes sleeve, and one end of sleeve is connected with outer ring, the other end and fixed disk of sleeve
Connection, drive disk are located in sleeve.
Preferably, the sleeve is made of aluminum or aluminum alloy.
Preferably, second installation portion is also arranged with bracket panel, and bracket panel is between drive disk and fixed disk, driving
Disk is provided with multiple first chutes close to the side of bracket panel, and multiple first chutes are parallel to each other, bracket panel close to drive disk one
Side is provided with multiple second chutes, and multiple second chutes are parallel to each other, and the first chute is parallel to each other with the second chute, the first chute with
Steel ball is equiped between second chute.
Preferably, the length of first chute is more than the length of the second chute.
Preferably, the bracket panel is provided with multiple 3rd chutes close to the side of fixed disk, and multiple 3rd chutes are mutually flat
OK, the 3rd chute is mutually perpendicular to the second chute, and fixed disk is provided with multiple 4th chutes close to the side of bracket panel, and multiple four
Chute is parallel to each other, and the 4th chute is parallel to each other with the 3rd chute, and steel ball is equiped between the 3rd chute and the 4th chute.
Beneficial effects of the present invention:During actual use, the axis body and motor connection of ball reducer of the present invention, axis body drive
Drive disk is rotated, and drives dish driving rolling ball rolls, due to the restriction effect of hypocycloid annular groove and epicycloid annular groove so that inner ring is sent out
It is raw to rotate, and then used inner ring as output shaft.The present invention transmits motion using the rolling of spin, realizes and motor is subtracted
Speed, friction when rolling friction during rolling ball rolls is engaged compared to conventional gears decelerator middle gear is smaller, and frictional dissipation is small,
Greatly promote transmission efficiency.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the present invention;
Fig. 2 is the dimensional structure diagram at another visual angle of the present invention;
Fig. 3 is the decomposition texture schematic diagram of the present invention;
Fig. 4 is the decomposition texture schematic diagram at another visual angle of the present invention;
Fig. 5 is the front view of the drive disk of the present invention;
Fig. 6 is the front view of the output panel of the present invention.
Reference includes:
The installation portion of 1-axis body, 10-eccentric part 11-the first
12-the second installation portion 2-drive disk, 21-hypocycloid annular groove
22-the first chute 3-output panel, 31-inner ring
32-epicycloid annular groove the 34-the second circle body of the 33-the first circle body
4-fixed disk, 5-sleeve, 6-bracket panel
61-the second chute.
Embodiment
For the ease of the understanding of those skilled in the art, the present invention is made further with reference to embodiment and accompanying drawing
Bright, the content that embodiment refers to not is limitation of the invention.
Fig. 1, Fig. 2, Fig. 3, Fig. 5 and Fig. 6, ball reducer of the invention, including axis body 1 are referred to, axis body 1 includes installation
Portion and the eccentric part 10 being connected with installation portion, eccentric part 10 are equiped with drive disk 2, and installation portion is equiped with output panel 3, output panel 3
Including inner ring 31, outer ring and multiple balls(Not shown in figure), inner ring 31 is set on installation portion, and outer ring is set in inner ring 31
On, multiple balls are installed between inner ring 31 and outer ring, and drive disk 2 is provided with hypocycloid annular groove 21 close to the side of inner ring 31, interior
The outer surface of the self-powered Moving plate 2 of cycloid annular groove 21 is recessed to be formed, and inner ring 31 is provided with epicycloid annular groove 32 close to the side of drive disk 2,
Epicycloid annular groove 32 forms from the outer surface of inner ring 31 is recessed, is equiped between hypocycloid annular groove 21 and epicycloid annular groove 32 multiple
Spin(Not shown in figure).
During actual use, the axis body 1 and motor connection of ball reducer of the present invention, axis body 1 drive drive disk 2 to rotate, and drive
Moving plate 2 drives rolling ball rolls, due to the restriction effect of hypocycloid annular groove 21 and epicycloid annular groove 32 so that inner ring 31 occurs to turn
It is dynamic, and then used using inner ring 31 as output shaft.The present invention transmits motion using the rolling of spin, realizes the deceleration to motor,
Friction when rolling friction during rolling ball rolls is engaged compared to conventional gears decelerator middle gear is smaller, and frictional dissipation is small, greatly
Big lifting transmission efficiency.
In the present embodiment, output panel 3 is combined type part, i.e. the inner ring 31 of output panel 3, outer ring and multiple balls first assembles
A combined type part is formed together, then whole output panel 3 is set on the installation portion of axis body 1.Compared to by inner ring 31,
Outer ring and multiple balls are installed one by one, reduce the alignment error between each element, lifted ball reducer each element it
Between fit precision, and then lifted ball reducer transmission accuracy.In addition, output panel 3 is also big for the mode of combined type part
Reduce the installation time of whole ball reducer, improving production efficiency greatly.
Fig. 3, Fig. 4, Fig. 5 and Fig. 6 are referred to, the drive disk 2 is generally circular, sets between eccentric part 10 and installation portion
Eccentric distance be a, a diameter of b of pitch circle, the profile of hypocycloid annular groove 21 is an amplitude for a and is inscribed in pitch circle(It is i.e. straight
Footpath is b circle)Loop wire, the profile of epicycloid annular groove 32 is an amplitude for a and is external in pitch circle(I.e. a diameter of b circle)'s
Loop wire.
The shape of the inner ring 31 is roughly annular, during actual installation, bearing is arranged on installation portion, inner ring 31 is set in
On bearing, inner ring 31 is made of high-hardness, wearable steel, such as high-carbon chromium steel.Outer ring includes the first circle body 33 and and first lap
The second circle body 34 that body 33 connects, the second circle body 34 is between the first circle body 33 and drive disk 2, the first circle body 33 and the second circle
Body 34 can be fixed together using bolts and nuts, and the first circle body 33, the shape of the second circle body 34 are identical, and both profiles are big
Cause equally to be made of high-hardness, wearable steel for annular, the first circle body 33, the second circle body 34, the first circle body 33 and the second circle body
34 are set in the outside of inner ring 31.
In the present embodiment, retainer is also equiped between the inner ring 31 and outer ring(Not shown in figure), ball is installed with
In retainer, retainer is used for spacing ball, and the opposite sides of ball contacts inner ring 31, the first circle body 33, the second circle body respectively
34, multiple balls are intervally installed, and avoid contacting with each other between ball and causing the abrasion of ball to accelerate, and extend output panel 3
Service life.In the present embodiment, ball, spin are made of high-hardness, wearable steel, retainer can use brass or
Stainless steel is made.
The installation portion includes the first installation portion 11 and the second installation portion 12, and eccentric part 10 is located at the first installation portion 11 and
Between two installation portions 12, the first installation portion 11, the second installation portion 12 form from the both sides one projection of eccentric part 10 respectively, inner ring
31 are set in the periphery of the first installation portion 11, fixed disk 4 are also arranged with the second installation portion 12, fixed disk 4 is substantially annular in shape, interior
Circle 31 is located at the left and right sides of drive disk 2 with fixed disk 4 respectively.In the present embodiment, the first circle body 33, the second circle body 34 are with fixing
Disk 4 is fixed together, without the structure design of additional parts, the further simplified ball reducer of auxiliary, so that
Reduce the volume of ball reducer of the present invention;During actual manufacture, it is respectively provided with the first circle body 33, the second circle body 34, fixed disk 4
There are multiple perforation, coordinated again with nut through fixed disk 4, the first circle body 33, the second circle body 34 with bolt and then fix three
Together.
Certainly, ball reducer of the present invention can also include locking disk(Not shown in figure), the profile for the disk that locks is annular,
Locking disk is provided with through hole, and through hole is installed in through hole through locking disk, the first circle body 33, and inner ring 31 reveals from through hole,
In order to reduce the frictional force of inner ring 31 and the disk that locks, the external diameter of inner ring 31 is less than the diameter of through hole, and locking disk is connected with fixed disk 4
Together.For the ease of the assembling of locking disk and outer ring, first one end of circle body 33 away from drive disk 2 is provided with insertion section, inserts
The external diameter for entering portion is less than external diameter of first circle body 33 close to the one end of drive disk 2, and back-up ring is provided with through hole, and back-up ring is integral from the disk that locks
Projection forms, and back-up ring avoids the first circle body 33 from being excessively inserting for block insertion section.Connect in order to facilitate inner ring 31 and external member
Connect, it is preferable that the one end of inner ring 31 away from drive disk 2 from through hole projection and go out.
Refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, in the present embodiment, the decelerator also includes sleeve 5, and sleeve 5 is arranged on the
Between two circle bodies 34 and fixed disk 4, one end of sleeve 5 is fixedly connected with the first circle body 33, the second circle body 34, sleeve 5 it is another
End is fixedly connected with fixed disk 4, and drive disk 2 is located in sleeve 5.In order to reduce rubbing between drive disk 2, inner ring 31 and sleeve 5
Power is wiped, the internal diameter of sleeve 5 is more than the external diameter of drive disk 2, and more than the external diameter of inner ring 31.By setting sleeve 5, the external world is avoided
Object collides drive disk 2 or inner ring 31, extends the service life of ball reducer.Preferably, sleeve 5 uses aluminum or aluminum alloy
It is made, using the characteristic of aluminum or aluminum alloy light weight, rapid heat dissipation, on the one hand mitigates the weight of ball reducer, it is on the other hand auxiliary
Help ball reducer quick heat radiating.
Second installation portion 12 is also arranged with bracket panel 6, and bracket panel 6 is roughly annular, and the internal diameter of bracket panel 6 is more than the
The external diameter of two installation portions 12, between drive disk 2 and fixed disk 4, drive disk 2 is provided with bracket panel 6 close to the side of bracket panel 6
Multiple first chutes 22, multiple first chutes 22 are parallel to each other, and the outer surface of the self-powered Moving plate 2 of the first chute 22 is recessed to be formed, the
One chute 22 is substantially in strip, and bracket panel 6 is provided with multiple second chutes 61, multiple second chutes 61 close to the side of drive disk 2
It is parallel to each other, the second chute 61 forms from the outer surface of bracket panel 6 is recessed, and the second chute 61 is similarly strip, the first chute 22
It is parallel to each other with the second chute 61, steel ball is equiped between the first chute 22 and the second chute 61.By setting steel ball(In figure not
Show)So that the sliding friction between drive disk 2 and bracket panel 6 is converted into rolling friction, and further auxiliary reduces friction damage
Consumption.Preferably, the length of the first chute 22 is more than the length of the second chute 61 so that sliding distance of the steel ball on bracket panel 6
It is smaller, avoid the excessive play in the plane vertical with axis body 1 of bracket panel 6.
The bracket panel 6 is provided with multiple 3rd chutes close to the side of fixed disk 4(Not shown in figure), multiple 3rd chutes
It is parallel to each other, the 3rd chute is formed from the surface of bracket panel 6 is recessed, and the 3rd chute is mutually perpendicular to the second chute 61, and the 3rd slides
Groove is identical with the shape of the second chute 61, and fixed disk 4 is provided with multiple 4th chutes close to the side of bracket panel 6(Do not show in figure
Go out), multiple 4th chutes are parallel to each other, and the surface of the 4th chute self-retaining disk 4 is recessed to be formed, the 4th chute and the 3rd chute phase
Mutually parallel, the 3rd chute is identical with the 4th chute shape, and steel ball is equiped between the 3rd chute and the 4th chute(Do not show in figure
Go out).In the present embodiment, steel ball is same with steel ball to be made of high-hardness, wearable steel, such as high-carbon chromium steel.
By setting up the bracket panel 6 so that play variable when drive disk 2 rotates in the plane vertical with axis body 1
The play of bracket panel 6 is converted into, avoids drive disk 2 from being directly connected with fixed disk 4, so, it is ensured that fixed disk 4 can be fixed not
It is dynamic, it is convenient ball reducer to be fixed installation.By setting steel ball and steel ball so that between drive disk 2 and bracket panel 6
Sliding friction between sliding friction, bracket panel 6 and fixed disk 4 is converted into rolling friction, and further auxiliary reduces friction damage
Consumption.In addition, by the way that the first chute 22 and the second chute 61 are be arranged in parallel, the second chute 61 and the 3rd chute be vertically arranged,
Three chutes be arranged in parallel with the 4th chute, avoid opening up hypocycloid annular groove on drive disk 2 and the side close to each other of bracket panel 6
With epicycloid annular groove, simplify the difficulty of processing technology, reduce the processing cost of ball reducer, while also service hoisting ball subtracts
The production efficiency of fast device.
Above content is only presently preferred embodiments of the present invention, for one of ordinary skill in the art, according to the present invention's
Thought, there will be changes, this specification content should not be construed as to the present invention in specific embodiments and applications
Limitation.
Claims (10)
1. ball reducer, including axis body, axis body includes installation portion and the eccentric part being connected with installation portion, eccentric part are equiped with drive
Moving plate, installation portion are equiped with output panel, it is characterised in that:Output panel includes inner ring, outer ring and multiple balls, and inner ring is sheathed on peace
Dress portion, outer ring are sheathed on inner ring, and multiple balls are installed between inner ring and outer ring, and drive disk is provided with interior pendulum close to the side of inner ring
Wire loop groove, inner ring are provided with epicycloid annular groove close to the side of drive disk, are equiped between hypocycloid annular groove and epicycloid annular groove more
Individual spin.
2. ball reducer according to claim 1, it is characterised in that:The outer ring includes the first circle body and and first lap
Second circle body of body connection, the first circle body and the second circle body are sheathed on inner ring.
3. ball reducer according to claim 1, it is characterised in that:Holding is also equiped between the inner ring and outer ring
Frame, ball are located in retainer, and multiple balls are intervally installed.
4. ball reducer according to claim 1, it is characterised in that:The installation portion includes the first installation portion and second
Installation portion, for eccentric part between the first installation portion and the second installation portion, inner ring is sheathed on the first installation portion, the second installation portion set
Provided with fixed disk.
5. ball reducer according to claim 4, it is characterised in that:The decelerator also includes locking disk, and lock disk
Provided with through hole, outer ring is installed in through hole, and locking disk is connected with fixed disk.
6. ball reducer according to claim 4, it is characterised in that:The decelerator also includes sleeve, and the one of sleeve
End is connected with outer ring, and the other end of sleeve is connected with fixed disk, and drive disk is located in sleeve.
7. ball reducer according to claim 6, it is characterised in that:The sleeve is made of aluminum or aluminum alloy.
8. ball reducer according to claim 4, it is characterised in that:Second installation portion is also arranged with bracket panel,
For bracket panel between drive disk and fixed disk, drive disk is provided with multiple first chutes close to the side of bracket panel, and multiple first
Chute is parallel to each other, and bracket panel is provided with multiple second chutes close to the side of drive disk, and multiple second chutes are parallel to each other, and first
Chute is parallel to each other with the second chute, and steel ball is equiped between the first chute and the second chute.
9. ball reducer according to claim 8, it is characterised in that:The length of first chute is more than the second chute
Length.
10. ball reducer according to claim 8, it is characterised in that:The bracket panel is set close to the side of fixed disk
There are multiple 3rd chutes, multiple 3rd chutes are parallel to each other, and the 3rd chute is mutually perpendicular to the second chute, and fixed disk is close to auxiliary
The side of disk is provided with multiple 4th chutes, and multiple 4th chutes are parallel to each other, and the 4th chute is parallel to each other with the 3rd chute, and the 3rd
Steel ball is equiped between chute and the 4th chute.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201610185270.3A CN105626800B (en) | 2016-03-29 | 2016-03-29 | Ball reducer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610185270.3A CN105626800B (en) | 2016-03-29 | 2016-03-29 | Ball reducer |
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Publication Number | Publication Date |
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CN105626800A CN105626800A (en) | 2016-06-01 |
CN105626800B true CN105626800B (en) | 2017-11-10 |
Family
ID=56042010
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CN201610185270.3A Active CN105626800B (en) | 2016-03-29 | 2016-03-29 | Ball reducer |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109578540B (en) * | 2018-12-29 | 2024-04-12 | 王小三 | Straight tooth planet wheel ball combined type speed reducer |
CN109538706B (en) * | 2018-12-29 | 2020-12-25 | 王小三 | Helical gear planet wheel ball combined speed reducer |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN86104457A (en) * | 1985-06-27 | 1986-12-24 | 加茂精工株式会社 | The differential speed reducer of gearless |
CN2544136Y (en) * | 2002-05-29 | 2003-04-09 | 刘兴荣 | Ball bearing type speed variator |
CN201129416Y (en) * | 2007-12-20 | 2008-10-08 | 陕西工业职业技术学院 | Novel cycloidal steel ball speed reducer |
CN104864049A (en) * | 2015-04-22 | 2015-08-26 | 苏州市恒加新精密机械科技有限公司 | Flexible roller-meshed harmonic reducer |
CN205001416U (en) * | 2015-10-08 | 2016-01-27 | 李林 | Power conversion device |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5544147A (en) * | 1978-09-22 | 1980-03-28 | Toshio Yamashita | Speed reducer |
-
2016
- 2016-03-29 CN CN201610185270.3A patent/CN105626800B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN86104457A (en) * | 1985-06-27 | 1986-12-24 | 加茂精工株式会社 | The differential speed reducer of gearless |
CN2544136Y (en) * | 2002-05-29 | 2003-04-09 | 刘兴荣 | Ball bearing type speed variator |
CN201129416Y (en) * | 2007-12-20 | 2008-10-08 | 陕西工业职业技术学院 | Novel cycloidal steel ball speed reducer |
CN104864049A (en) * | 2015-04-22 | 2015-08-26 | 苏州市恒加新精密机械科技有限公司 | Flexible roller-meshed harmonic reducer |
CN205001416U (en) * | 2015-10-08 | 2016-01-27 | 李林 | Power conversion device |
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Effective date of registration: 20190808 Address after: 528100 No. 4 Lehua South Road, Leping Town, Sanshui District, Foshan City, Guangdong Province Patentee after: Foshan Lipuxin Precision Technology Co., Ltd. Address before: 523622 Zhangmu Town, Dongguan City, Guangdong Province, Zhangluo Community No. 1, 6 buildings 1302 Patentee before: Wang Xiaosan |