CN111120621A - Harmonic reducer capable of reducing vibration and manufacturing method thereof - Google Patents
Harmonic reducer capable of reducing vibration and manufacturing method thereof Download PDFInfo
- Publication number
- CN111120621A CN111120621A CN202010069568.4A CN202010069568A CN111120621A CN 111120621 A CN111120621 A CN 111120621A CN 202010069568 A CN202010069568 A CN 202010069568A CN 111120621 A CN111120621 A CN 111120621A
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- Prior art keywords
- harmonic reducer
- inner ring
- ball bearing
- flexible
- wheel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H49/00—Other gearings
- F16H49/001—Wave gearings, e.g. harmonic drive transmissions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C39/10—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. casting around inserts or for coating articles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/028—Gearboxes; Mounting gearing therein characterised by means for reducing vibration or noise
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Support Of The Bearing (AREA)
Abstract
The invention discloses a harmonic reducer capable of reducing vibration and a manufacturing method thereof. The manufacturing steps are as follows: preparing a harmonic reducer, wherein a shallow groove is formed in the outer end face of the inner ring; after the oil stain removal treatment of the shallow groove, coating a meshing agent; pouring raw rubber material into the shallow groove to attach and fix the preformed raw rubber blank layer; firstly, adding a zinc oxide vulcanizing agent and a tetramethyl thiuram disulfide accelerator into a raw rubber blank layer for vulcanization treatment; and finally, assembling the crossed ball bearing into the harmonic reducer. The output end of the harmonic reducer obtained by the method can slow down the transmission of the vibration source of the harmonic reducer to the rigid transmission part, and the elasticity and the aging resistance of the rubber layer are improved.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to a harmonic reducer capable of reducing vibration and a manufacturing method thereof, and belongs to the technical field of manufacturing of harmonic reducers.
[ background of the invention ]
The application of the automatic indexing turntable and the SCARA robot in industrial production is gradually popularized, and a harmonic reducer is basically installed on a moving joint to improve the precision. However, in the actual operation process, vibration of different degrees can be generated between the harmonic reducer and the rigid transmission member which drives the indexing turntable to rotate or between the harmonic reducer and the rigid transmission member which drives the movement joint of the robot to move, so that vibration of different degrees can be generated on a turntable platform or a working platform of the SCARA robot, even noise is generated, the product precision is reduced, and meanwhile, the reliability of the product is rejected by customers in sense.
In the operation process of the harmonic reducer, torque is output when gears are meshed, certain vibration and noise are inevitably generated, and the vibration and the noise reflected by the output end of the reducer are also large or small due to the fact that the vibration and the noise are determined by the gear meshing stability of the reducer and the assembly precision of various parts and components.
[ summary of the invention ]
The invention aims to provide a harmonic reducer capable of reducing vibration, wherein the output end of the harmonic reducer can reduce the transmission of the vibration source of the harmonic reducer to a certain extent.
The invention also provides a manufacturing method of the harmonic reducer capable of reducing vibration.
Therefore, the invention provides the following technical scheme:
a harmonic reducer capable of reducing vibration comprises a cross ball bearing, a rigid wheel, a flexible wheel and a wave generator, wherein the cross ball bearing comprises an outer ring and an inner ring, the rigid wheel is provided with an inner ring gear, the flexible wheel is provided with an outer ring gear, the outer ring is fixedly connected with the rigid wheel, the wave generator is positioned in the flexible wheel, the flexible wheel and the rigid wheel are provided with the flexible bearing between the flexible wheel and the rigid wheel, the flexible wheel and the rigid wheel are mutually meshed, the inner ring is fixedly connected with the flexible wheel, the inner ring is an output end, the improvement point is that a shallow groove is formed in the outer end face of the inner ring, a damping piece is fixed in the shallow groove, the damping piece protrudes out of the outer end face.
The flexible gear is fixedly connected with the inner ring through the flexible inner cushion block and the fastener.
The harmonic reducer capable of reducing vibration is realized by the following manufacturing steps:
a) preparing a harmonic reducer, wherein the crossed ball bearings are not assembled;
b) a shallow groove is formed in the outer end face of the inner ring of the crossed ball bearing;
c) firstly, degreasing the shallow groove by using a degreasing agent, and then coating a meshing agent on the shallow groove;
d) pouring 12.5g of raw rubber material into the shallow groove in a pouring manner, and attaching and fixing a preformed raw rubber blank layer on an inner ring of the crossed ball bearing;
e) vulcanization treatment
Firstly, adding a zinc oxide vulcanizing agent with the dosage of 5g and a tetramethyl thiuram disulfide accelerator with the dosage of 5g into a raw rubber blank layer, and then vulcanizing the crossed ball bearing with the raw rubber blank layer, wherein the vulcanizing conditions are as follows: the pressure is 16 MPa-21 MPa, the temperature is 180 ℃, the time is 2min, and after vulcanization treatment, the rubber layer protruding out of the outer end surface of the inner ring is completely fixed on the crossed ball bearing;
f) assembling the crossed ball bearing with the rubber layer on the inner ring obtained in the step e) into a harmonic reducer.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the harmonic reducer capable of damping vibration, the wave generator is an input end, the cross ball bearing is an output end, the damping piece is additionally arranged on the outer end face of the cross ball bearing, the damping piece is a rubber layer, and after the cross ball bearing is isolated from direct contact with the rigid transmission piece through the damping piece, the output end of the harmonic reducer can mitigate the vibration source of the harmonic reducer to be transmitted to the rigid transmission piece to a certain extent, so that the vibration quantity and the vibration noise are effectively reduced, and the working efficiency, the bearing capacity and the service life of the harmonic reducer are improved;
2. the cross ball bearing fixes the rubber layer which protrudes out of the outer end surface (output end surface) of the inner ring, and the rubber layer is optimized by a vulcanization process, so that the elasticity and the aging resistance of the rubber layer are improved.
[ description of the drawings ]
FIG. 1 is a cross-sectional view of a damped harmonic reducer of the present invention;
FIG. 2 is a cross-sectional view of a cross ball bearing machined with shallow grooves;
fig. 3 is a plan view of a crossed ball bearing.
[ detailed description ] embodiments
Referring to fig. 1, 2 and 3, a harmonic reducer capable of reducing vibration includes a cross ball bearing 5, a rigid gear 4, a flexible gear 3 and a wave generator 1, the cross ball bearing 5 includes an outer ring 52 and an inner ring 51, the rigid gear 4 has an inner ring gear, the flexible gear 3 has an outer ring gear, the outer ring 52 is fixedly connected with the rigid gear 4, the wave generator 1 is an input end, the wave generator 1 is located in the flexible gear 3, the flexible bearing 2 is installed between the wave generator 1 and the flexible gear 3, the flexible gear 3 is engaged with the rigid gear 4, the inner ring 51 is fixedly connected with the flexible gear 3, the inner ring 51 is an output end, and the improvement point is that a shallow groove 510 is formed on an outer end surface of the inner ring 51, a damping member 6 is fixed in the shallow groove 510, the damping member 6 protrudes out of an outer end surface of the inner ring 51, and the damping member 6 is a rubber layer attached to.
The cross ball bearing 5 is of the type: LSS-20; the outer ring 52 is a split type, and the two outer rings 52 are fixedly connected together through an outer ring connecting screw K2.
The vibration source is generated by the harmonic reducer during the speed reduction meshing transmission.
The flexible wheel 3 is fixedly connected with the inner ring 51 through the flexible inner cushion block 7 and a fastener K1.
The manufacturing method of the harmonic reducer capable of reducing vibration specifically comprises the following steps:
a) a harmonic speed reducer (known) is prepared in which the cross ball bearing 5 is not assembled.
b) A shallow groove 510 is formed in the outer end surface of the inner race 51 of the crisscross ball bearing 5.
c) Degreasing the shallow groove 510 with a degreasing agent to increase the bondability, wherein the degreasing agent is absolute ethyl alcohol, and then an engaging agent is coated on the bottom surface and the side wall of the shallow groove 510, and the engaging agent is isocyanate.
d) 12.5g of raw rubber compound was poured into the shallow groove 510 in a poured form, and a pre-formed raw rubber blank layer was attached and fixed to the inner ring 51 of the crossed ball bearing 5.
The rubber material adopts natural rubber and chloroprene rubber, wherein the natural rubber accounts for 10 g; the chloroprene rubber accounted for 2.5 g.
e) Vulcanization treatment
Firstly, adding a zinc oxide vulcanizing agent with the dosage of 5g and a tetramethyl thiuram disulfide accelerator with the dosage of 5g into a raw rubber blank layer, and then putting the crossed ball bearing 5 with the raw rubber blank layer into a vulcanizing chamber of a vulcanizing machine for vulcanization treatment, wherein the vulcanization treatment conditions are as follows: the pressure is 16 MPa-21 MPa, the temperature is 180 ℃, the time is 2min (min), and after vulcanization treatment, the rubber layer protruding out of the outer end surface of the inner ring 51 is completely fixed on the crossed ball bearing 5.
A pressure greater than 21MPa leads to rubber sticking, while a pressure lower than 16MPa leads to foaming of the rubber.
f) Assembling the crossed ball bearing 5 with the rubber layer on the inner ring obtained in the step e) into the harmonic reducer.
Claims (3)
1. A harmonic reducer capable of reducing vibration comprises a cross ball bearing, a rigid wheel, a flexible wheel and a wave generator, wherein the cross ball bearing comprises an outer ring and an inner ring, the rigid wheel is provided with an inner ring gear, the flexible wheel is provided with an outer ring gear, the outer ring is fixedly connected with the rigid wheel, the wave generator is positioned in the flexible wheel, the flexible wheel and the rigid wheel are provided with the flexible bearing between the outer ring gear and the rigid wheel, the flexible wheel and the rigid wheel are mutually meshed, the inner ring is fixedly connected with the flexible wheel, and the inner ring is an output end.
2. The vibration dampened harmonic reducer of claim 1 wherein: the flexible gear is fixedly connected with the inner ring through the flexible inner cushion block and the fastener.
3. A method of manufacturing a vibration-damped harmonic reducer according to claim 1 or 2, characterized by the steps of:
a) preparing a harmonic reducer, wherein the crossed ball bearings are not assembled;
b) a shallow groove is formed in the outer end face of the inner ring of the crossed ball bearing;
c) firstly, degreasing the shallow groove by using a degreasing agent, and then coating a meshing agent on the shallow groove;
d) pouring 12.5g of raw rubber material into the shallow groove in a pouring manner, and attaching and fixing a preformed raw rubber blank layer on an inner ring of the crossed ball bearing;
e) vulcanization treatment
Firstly, adding a zinc oxide vulcanizing agent with the dosage of 5g and a tetramethyl thiuram disulfide accelerator with the dosage of 5g into a raw rubber blank layer, and then vulcanizing the crossed ball bearing with the raw rubber blank layer, wherein the vulcanizing conditions are as follows: the pressure is 16 MPa-21 MPa, the temperature is 180 ℃, the time is 2min, and after vulcanization treatment, the rubber layer protruding out of the outer end surface of the inner ring is completely fixed on the crossed ball bearing;
f) assembling the crossed ball bearing with the rubber layer on the inner ring obtained in the step e) into a harmonic reducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010069568.4A CN111120621B (en) | 2020-01-10 | 2020-01-10 | Harmonic reducer capable of reducing vibration and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010069568.4A CN111120621B (en) | 2020-01-10 | 2020-01-10 | Harmonic reducer capable of reducing vibration and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111120621A true CN111120621A (en) | 2020-05-08 |
| CN111120621B CN111120621B (en) | 2023-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010069568.4A Active CN111120621B (en) | 2020-01-10 | 2020-01-10 | Harmonic reducer capable of reducing vibration and manufacturing method thereof |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005233299A (en) * | 2004-02-19 | 2005-09-02 | Koyo Seiko Co Ltd | Roller bearing |
| JP2005308032A (en) * | 2004-04-19 | 2005-11-04 | Ntn Corp | Vibration-damping bearing |
| CN202914532U (en) * | 2012-11-26 | 2013-05-01 | 宁波三泰轴承有限公司 | Vibration-reduction sealing bearing |
| CN103254510A (en) * | 2012-02-20 | 2013-08-21 | 中国石油化工股份有限公司 | Ethylene-propylene-diene monomer damping material |
| CN105387159A (en) * | 2015-12-14 | 2016-03-09 | 山东帅克机械制造股份有限公司 | Robot harmonic reducer device |
| CN105840765A (en) * | 2016-05-25 | 2016-08-10 | 浙江来福谐波传动股份有限公司 | Delta-tooth-shaped harmonic reducer |
| CN107337825A (en) * | 2017-07-31 | 2017-11-10 | 常州杰轩纺织科技有限公司 | A kind of preparation method of yielding rubber |
| CN110513414A (en) * | 2019-09-04 | 2019-11-29 | 浙江三力汽车零部件有限公司 | A kind of rubber composite bush and preparation method thereof |
-
2020
- 2020-01-10 CN CN202010069568.4A patent/CN111120621B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005233299A (en) * | 2004-02-19 | 2005-09-02 | Koyo Seiko Co Ltd | Roller bearing |
| JP2005308032A (en) * | 2004-04-19 | 2005-11-04 | Ntn Corp | Vibration-damping bearing |
| CN103254510A (en) * | 2012-02-20 | 2013-08-21 | 中国石油化工股份有限公司 | Ethylene-propylene-diene monomer damping material |
| CN202914532U (en) * | 2012-11-26 | 2013-05-01 | 宁波三泰轴承有限公司 | Vibration-reduction sealing bearing |
| CN105387159A (en) * | 2015-12-14 | 2016-03-09 | 山东帅克机械制造股份有限公司 | Robot harmonic reducer device |
| CN105840765A (en) * | 2016-05-25 | 2016-08-10 | 浙江来福谐波传动股份有限公司 | Delta-tooth-shaped harmonic reducer |
| CN107337825A (en) * | 2017-07-31 | 2017-11-10 | 常州杰轩纺织科技有限公司 | A kind of preparation method of yielding rubber |
| CN110513414A (en) * | 2019-09-04 | 2019-11-29 | 浙江三力汽车零部件有限公司 | A kind of rubber composite bush and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN111120621B (en) | 2023-07-14 |
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