CN113915314A - Improved one-way coupling belt pulley of automobile generator - Google Patents
Improved one-way coupling belt pulley of automobile generator Download PDFInfo
- Publication number
- CN113915314A CN113915314A CN202111233099.6A CN202111233099A CN113915314A CN 113915314 A CN113915314 A CN 113915314A CN 202111233099 A CN202111233099 A CN 202111233099A CN 113915314 A CN113915314 A CN 113915314A
- Authority
- CN
- China
- Prior art keywords
- unidirectional
- star wheel
- belt pulley
- section
- arc
- 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
- 230000008878 coupling Effects 0.000 title claims abstract description 32
- 238000010168 coupling process Methods 0.000 title claims abstract description 32
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 238000005096 rolling process Methods 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 5
- 230000006978 adaptation Effects 0.000 claims description 4
- 230000006872 improvement Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/32—Friction members
- F16H55/36—Pulleys
-
- 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
- F16D41/00—Freewheels or freewheel clutches
- F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
- F16D41/064—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls
- F16D41/066—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls all members having the same size and only one of the two surfaces being cylindrical
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pulleys (AREA)
Abstract
The invention relates to an improved automobile generator unidirectional coupling belt pulley, which comprises a guide cylinder, a belt pulley shell which is concentric with the guide cylinder and used for bearing a belt, wherein the belt pulley shell is connected with the guide cylinder through a unidirectional rolling mechanism, the unidirectional rolling mechanism comprises a unidirectional star wheel, sealing rings arranged at two ends of the unidirectional star wheel and a plurality of rollers arranged in the unidirectional star wheel at intervals, the rollers are kept in the unidirectional star wheel through the sealing rings, the unidirectional coupling structure is circumferentially arranged on the unidirectional star wheel and comprises mounting grooves which are circumferentially distributed at equal intervals on the inner wall of the unidirectional star wheel, each mounting groove is composed of a smooth section and an arc-shaped section, flat springs with cross-sectional areas of two ends smaller than that of the middle part are arranged in the smooth section, and embedding grooves with the width consistent with the thickness of the inner wall of the unidirectional star wheel are arranged on the end parts of the mounting grooves, far away from the arc-shaped sections, through wire cutting, the embedded groove is embedded with a limiting part for limiting the flat spring.
Description
Technical Field
The invention relates to the field of unidirectional coupling belt pulleys, in particular to an improved unidirectional coupling belt pulley of an automobile generator.
Background
The automobile generator is one of the core power supplies of an automobile, and is used for continuously supplying power to required electric equipment and simultaneously charging a storage battery in the normal running process of an automobile engine. With the change of automobile technology, the power demand of passenger automobiles is continuously improved, and 10 years ago, the power of a generator of a common car is about 400 watts, but the power of the generator of the car in the current market is generally about 1200 watts or even higher.
The improvement of generator power is because of the increase of the consumer needs on the car, and the improvement of generator power can lead to the increase of the volume and the inertia of generator, traditional generator belt pulley is the rigidity belt pulley, when the engine stops or the derailleur is shifted gears, the belt pulley linear velocity can change, the generator rotor is very fast of moving under powerful inertia, lead to taking place "the external sound of" sing, sing ", system's wearing and tearing, the life-span is reduced, simultaneously because of the inherent irregular vibration of engine, lead to the instantaneous moving irregularity of belt pulley, this irregularity is asynchronous with generator rotor operation, consume a large amount of available power, lose a large amount of energy.
Therefore, there are generators unidirectional coupling pulleys for generators on the market, known by its english acronym OAP, known in full: the generator one-way belt Pulley consists of an outer ring matched with the cross section shape of the V-ribbed belt, a clutch unit consisting of a stamped inner ring, an outer ring and a double-needle bearing, a shaft sleeve and two sealing rings. To prevent the effects of water and other dirt, a protective cover is mounted on its outer end face, which functions to decouple the alternator from the engine front end accessory belt drive because the alternator has the highest rotational moment of inertia in the engine front end accessory belt drive, which means that the alternator one-way pulley allows the v-belt to drive the alternator in one direction only.
However, the unidirectional belt pulley of the generator on the market has the problems of complex structure, low strength and poor stability, if the concrete structure is basically consistent with that of the overrunning belt pulley disclosed in the publication No. CN 103016684A, the overrunning belt pulley comprises a mandrel, a shell and a one-way rolling mechanism arranged between the mandrel and the shell, the one-way rolling mechanism comprises a one-way clutch ring sleeved on the outer surface of the mandrel and a one-way retainer sleeved on the inner surface of the shell, a one-way roller pin is arranged between the one-way clutch ring and the one-way retainer, however, the products in the market are small-diameter roller belt plastic cages, the plastic cages are easy to break after being used for a period of time to cause product failure, so that the durability and the stability of the products are poor, and because the retainer is of a plastic structure, the reverse moment of the product is also larger, so that the dynamic response capability of the belt pulley is poorer, and the improvement is needed.
Therefore, the applicant proposes a unidirectional coupling belt pulley of an automobile generator, with patent number CN 214367600U, which not only simplifies the parts of the unidirectional holding mechanism by improving the unidirectional holding mechanism, directly installing the rollers in the unidirectional star wheel through the unidirectional coupling structure circumferentially arranged on the unidirectional star wheel, arranging sealing rings at two ends to hold the rollers in the unidirectional star wheel, and thus, the unidirectional coupling belt pulley simplifies the parts of the unidirectional holding mechanism
The quantity and the rollers are not required to be arranged between the guide cylinder and the belt pulley shell by adopting a retainer, when the engine normally drives the overrunning damping belt pulley to rotate, the belt drives the belt pulley shell to rotate, the rollers are coupled on the outer surface of the guide cylinder by the belt pulley shell through a one-way coupling structure arranged on a one-way star wheel to be linked with the guide cylinder to rotate, and when the rotating speed of the engine is lower, if an inner ring is the guide cylinder (guide cylinder), the rollers are arranged
The unidirectional coupling structure is directly arranged in the unidirectional star wheel, the response speed is high, and a plastic retainer is not arranged in a product, so that a series of problems caused by the fracture of the retainer can not occur, and the durability and the stability of the generator exceeding the damping belt pulley are improved;
however, in actual production, it is found that when the unidirectional coupling structure in the unidirectional star wheel is assembled, because the unidirectional star wheel is not provided with a positioning to position the flat spring mounting position, the cooperation between the flat spring and the roller during assembly needs a skilled operator to operate, the experience requirement of the operator is high, the assembly efficiency is difficult to improve, and the production efficiency is low, so that improvement is needed.
Disclosure of Invention
The technical problem to be solved by the present invention is to solve the above-mentioned deficiencies of the prior art,
an improved automotive alternator unidirectional coupling pulley is provided with a spring mounting location limitation.
In order to achieve the purpose, the invention provides the following technical scheme: an improved unidirectional coupling belt pulley of an automobile generator comprises a guide cylinder, a belt pulley shell which is concentrically arranged with the guide cylinder and used for bearing a belt, wherein the belt pulley shell is connected with the guide cylinder through a unidirectional rolling mechanism, the unidirectional rolling mechanism comprises a unidirectional star wheel, sealing rings arranged at two ends of the unidirectional star wheel and a plurality of rollers which are arranged in the unidirectional star wheel at intervals, the rollers are kept in the unidirectional star wheel through the sealing rings, a unidirectional coupling structure which can enable the rollers to be coupled with the guide cylinder or decoupled is circumferentially arranged on the unidirectional star wheel, the unidirectional coupling structure comprises mounting grooves which are circumferentially distributed at equal intervals on the inner wall of the unidirectional star wheel, each mounting groove is composed of a smooth section and an arc-shaped section, flat springs with cross section areas of two ends smaller than that of the middle part are arranged in the smooth sections, one ends of the flat springs are abutted against the mounting grooves, the other ends of the flat springs are extended into the arc-shaped sections to be abutted against the rollers to keep the rollers in the arc-shaped sections, the method is characterized in that: the mounting groove is seted up the unanimous groove of inlaying of width and one-way star gear inner wall thickness at the tip that the arc section was kept away from to level and smooth section through wire cut's mode, it has to carry out spacing locating part to flat spring to inlay in the groove.
By adopting the technical scheme, because the assembly position of the flat spring is not limited by the limiting part during installation in the prior art, an assembly master with rich experience is often required for assembly, the assembly threshold is high, the assembly efficiency is low, and the production efficiency is influenced.
The improved automobile generator unidirectional coupling belt pulley can be further provided with: the locating part includes with inlay the locating part body of groove shape adaptation, locating part body one end is equipped with the arch segment extension protruding, a pot head of flat spring is established outside protruding and is supported with the mounting groove.
By adopting the technical scheme, the protrusion is processed on the limiting part, namely, other parts except the part needing to be processed with the protrusion are milled flat, so that the limiting part with the protrusion can be obtained, the limiting part is embedded into the embedding groove again, and one end of the flat spring is sleeved on the protrusion, and the other end of the flat spring is abutted against the roller during assembly, so that the roller and the flat spring can be installed.
The improved automobile generator unidirectional coupling belt pulley can be further provided with: the outer shape of the protrusion is matched with the inner diameter shape of the flat spring.
By adopting the technical scheme, the protrusion is arranged to be matched with the shape of the inner cavity of the flat spring, so that the positioning effect of the protrusion on the mounting position of one end of the flat spring during the mounting of the flat spring is further improved.
The improved automobile generator unidirectional coupling belt pulley can be further provided with: the arc section is sequentially provided with a first arc section connected with the smooth section, an inclined section connected with the first arc section and a second arc section connected with the inclined section.
By adopting the technical scheme, the roller is directly kept in the arc-shaped section by adopting the flat spring with the cross sections at the two ends smaller than the cross section at the middle part as the elastic retainer, the stress of the spring is more concentrated because the cross sections at the two ends are smaller than the cross section at the middle part, and because the sealing rings are arranged at the two ends of the one-way star wheel, the roller cannot deviate towards the two ends in the motion process, and meanwhile, the roller cannot deviate up and down in the working process because the cross sections at the two ends of the flat spring are smaller than the cross section area of the cross section at the middle part, and the roller is prevented from deviating by arranging the spring retainer.
The improved automobile generator unidirectional coupling belt pulley can be further provided with: both ends of the one-way star wheel in the belt pulley shell are provided with bearings.
By adopting the technical scheme, the concentricity of the belt pulley shell and the guide cylinder is ensured through the bearing.
The invention has the beneficial effects that: reduce the spring mounting degree of difficulty through setting up the locating part, promote production efficiency and locating part and form by the waste material processing, material utilization is high.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic axial sectional structure of an embodiment of the present invention.
Fig. 2 is a schematic cross-sectional view of the interior of a unidirectional star wheel according to an embodiment of the present invention.
Fig. 3 is a schematic internal cross-sectional view of the unidirectional star-wheel unidirectional coupling structure and the position-limiting member according to the embodiment of the present invention.
Fig. 4 is an enlarged schematic view of a front view angle of a position-limiting element according to an embodiment of the invention.
Detailed Description
Referring to fig. 1-4: an improved unidirectional coupling belt pulley of an automobile generator comprises a guide cylinder 2, a belt pulley shell 1 which is concentric with the guide cylinder 2 and used for bearing a belt, the belt pulley shell 1 and the guide cylinder 2 are connected through a unidirectional rolling mechanism, the unidirectional rolling mechanism comprises a unidirectional star wheel 3, sealing rings 6 arranged at two ends of the unidirectional star wheel 3 and 7 rollers 4 arranged in the unidirectional star wheel 3 at intervals, a unidirectional coupling structure capable of enabling the rollers 4 to be coupled with or decoupled from the guide cylinder 2 is arranged in the circumferential direction of the unidirectional star wheel 3, the unidirectional coupling structure comprises mounting grooves 31 which are distributed at equal intervals in the circumferential direction of the inner wall of the unidirectional star wheel 3, each mounting groove 31 comprises a smooth section 311 and an arc-shaped section 312, a flat spring 32 with the cross section area of two ends smaller than the cross section area of the middle part is arranged in the smooth section 311, one end of the flat spring 32 is abutted against the mounting groove 31, the other end extends into the arc-shaped section 312 and is abutted against the rollers 4 to keep the rollers 4 in the arc-shaped section 312, the segmental arc sets gradually the first circular arc 3121 that links to each other with smooth section 311, the oblique section 3122 that links to each other with first circular arc 3121 and the second circular arc 3123 that links to each other with oblique section 3122, the slot 7 of inlaying that width and one-way star gear 3 inner wall thickness are unanimous is seted up through wire-cut at the tip that the segmental arc 312 was kept away from to smooth section 311 to mounting groove 31, it has to carry out spacing locating part 8 to flat spring 32 to inlay in inlaying the slot 7, locating part 8 includes with the locating part body 81 of inlaying 7 shape adaptations of groove, locating part body 81 one end is equipped with the protruding 82 that extends to the segmental arc 312, flat spring 32 pot head is established outside protruding 82 and is offset with mounting groove 31, protruding 82 appearance and the inside diameter shape adaptation of flat spring 32.
Claims (5)
1. An improved unidirectional coupling belt pulley of an automobile generator comprises a guide cylinder, a belt pulley shell which is concentrically arranged with the guide cylinder and used for bearing a belt, wherein the belt pulley shell is connected with the guide cylinder through a unidirectional rolling mechanism, the unidirectional rolling mechanism comprises a unidirectional star wheel, sealing rings arranged at two ends of the unidirectional star wheel and a plurality of rollers which are arranged in the unidirectional star wheel at intervals, the rollers are kept in the unidirectional star wheel through the sealing rings, a unidirectional coupling structure which can enable the rollers to be coupled with the guide cylinder or decoupled is circumferentially arranged on the unidirectional star wheel, the unidirectional coupling structure comprises mounting grooves which are circumferentially distributed at equal intervals on the inner wall of the unidirectional star wheel, each mounting groove is composed of a smooth section and an arc-shaped section, flat springs with cross section areas of two ends smaller than that of the middle part are arranged in the smooth sections, one ends of the flat springs are abutted against the mounting grooves, the other ends of the flat springs are extended into the arc-shaped sections to be abutted against the rollers to keep the rollers in the arc-shaped sections, the method is characterized in that: the mounting groove is seted up the unanimous groove of inlaying of width and one-way star gear inner wall thickness at the tip that the arc section was kept away from to level and smooth section through wire cut's mode, it has to carry out spacing locating part to flat spring to inlay in the groove.
2. An improved unidirectional coupling pulley for automobile generator as claimed in claim 1, wherein: the locating part includes with inlay the locating part body of groove shape adaptation, locating part body one end is equipped with the arch segment extension protruding, a pot head of flat spring is established outside protruding and is supported with the mounting groove.
3. An improved unidirectional coupling pulley for automobile generator as claimed in claim 2, wherein: the outer shape of the protrusion is matched with the inner diameter shape of the flat spring.
4. An improved unidirectional coupling pulley for automobile generator as claimed in claim 1, 2 or 3, wherein: the arc section is sequentially provided with a first arc section connected with the smooth section, an inclined section connected with the first arc section and a second arc section connected with the inclined section.
5. An improved unidirectional coupling pulley for automobile generator as claimed in claim 4, wherein: both ends of the one-way star wheel in the belt pulley shell are provided with bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111233099.6A CN113915314A (en) | 2021-10-22 | 2021-10-22 | Improved one-way coupling belt pulley of automobile generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111233099.6A CN113915314A (en) | 2021-10-22 | 2021-10-22 | Improved one-way coupling belt pulley of automobile generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113915314A true CN113915314A (en) | 2022-01-11 |
Family
ID=79242403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111233099.6A Pending CN113915314A (en) | 2021-10-22 | 2021-10-22 | Improved one-way coupling belt pulley of automobile generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113915314A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003139166A (en) * | 2001-11-01 | 2003-05-14 | Koyo Seiko Co Ltd | Method of manufacturing inner ring of one-way clutch |
| JP2007198504A (en) * | 2006-01-26 | 2007-08-09 | Nsk Ltd | One-way clutch and one-way clutch built-in type pulley device |
| CN101539194A (en) * | 2009-04-09 | 2009-09-23 | 李志敏 | Unidirectional pulley of automobile generator |
| KR100982418B1 (en) * | 2010-03-24 | 2010-09-15 | (주)와토코리아 | One way clutch pulley |
| CN201582376U (en) * | 2009-12-18 | 2010-09-15 | 宁波市江北海通汽车配件有限公司 | Unidirectional belt wheel of electric generator of automobile |
| KR101581344B1 (en) * | 2014-09-02 | 2015-12-30 | 주식회사 창진테크 | Auto-pully for generator of automobile |
| CN107191575A (en) * | 2016-10-09 | 2017-09-22 | 台州振鹏单向器有限公司 | A kind of damper pulley of roller type one way coupling |
| CN212959762U (en) * | 2020-07-22 | 2021-04-13 | 台州振鹏单向器有限公司 | One-way clutch belt pulley of automobile generator |
| CN214367600U (en) * | 2021-01-22 | 2021-10-08 | 瑞安市悦华汽车单向器有限公司 | One-way coupling belt pulley of automobile generator |
-
2021
- 2021-10-22 CN CN202111233099.6A patent/CN113915314A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003139166A (en) * | 2001-11-01 | 2003-05-14 | Koyo Seiko Co Ltd | Method of manufacturing inner ring of one-way clutch |
| JP2007198504A (en) * | 2006-01-26 | 2007-08-09 | Nsk Ltd | One-way clutch and one-way clutch built-in type pulley device |
| CN101539194A (en) * | 2009-04-09 | 2009-09-23 | 李志敏 | Unidirectional pulley of automobile generator |
| CN201582376U (en) * | 2009-12-18 | 2010-09-15 | 宁波市江北海通汽车配件有限公司 | Unidirectional belt wheel of electric generator of automobile |
| KR100982418B1 (en) * | 2010-03-24 | 2010-09-15 | (주)와토코리아 | One way clutch pulley |
| KR101581344B1 (en) * | 2014-09-02 | 2015-12-30 | 주식회사 창진테크 | Auto-pully for generator of automobile |
| CN107191575A (en) * | 2016-10-09 | 2017-09-22 | 台州振鹏单向器有限公司 | A kind of damper pulley of roller type one way coupling |
| CN212959762U (en) * | 2020-07-22 | 2021-04-13 | 台州振鹏单向器有限公司 | One-way clutch belt pulley of automobile generator |
| CN214367600U (en) * | 2021-01-22 | 2021-10-08 | 瑞安市悦华汽车单向器有限公司 | One-way coupling belt pulley of automobile generator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6768215B2 (en) | High rotational speed optimized engine starter having clutch connection to engine | |
| KR101603364B1 (en) | Torque transfer unit with sealed one way clutch for an engine starting system | |
| CN101936348A (en) | Belt pulley of over-travel alternating current generator decoupler | |
| CN101539194A (en) | Unidirectional pulley of automobile generator | |
| CN202220807U (en) | Coupling tuning pulley | |
| CN216112042U (en) | Unidirectional star wheel of generator unidirectional coupling belt pulley with positioning structure | |
| CN214367600U (en) | One-way coupling belt pulley of automobile generator | |
| CN113915314A (en) | Improved one-way coupling belt pulley of automobile generator | |
| CN208221537U (en) | A kind of mandrel of belt wheel of automobile engine | |
| CN216252432U (en) | Manpower-driven generator device | |
| CN102359508B (en) | Coupling tuning pulley | |
| CN106884965A (en) | The frictional one-way belt sheave of roller | |
| CN101476570A (en) | Water draining pump | |
| CN212959762U (en) | One-way clutch belt pulley of automobile generator | |
| CN212297341U (en) | One-way clutch with overload protection structure | |
| CN100540952C (en) | Belt drive with friction wheel | |
| CN205978351U (en) | One -way belt pulley of spring friction formula | |
| CN210007521U (en) | Generator capable of preventing bearing from running out of outer ring | |
| CN215058872U (en) | Bearing fixing seat for washing machine | |
| CN106195218B (en) | Spring friction one-way belt sheave | |
| CN215058873U (en) | Bearing fixing seat | |
| CN218408473U (en) | Driving shaft with planetary gear structure | |
| CN218862137U (en) | Be applied to supplementary bearing structure of concrete vibrator axis of rotation | |
| CN213235956U (en) | Fatigue-resistant gear structure for agricultural machinery | |
| CN215646467U (en) | Outer rotor brushless direct current motor |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220111 |
|
| RJ01 | Rejection of invention patent application after publication |