CN106368810A - Engine idle wheel assembly - Google Patents
Engine idle wheel assembly Download PDFInfo
- Publication number
- CN106368810A CN106368810A CN201610763019.0A CN201610763019A CN106368810A CN 106368810 A CN106368810 A CN 106368810A CN 201610763019 A CN201610763019 A CN 201610763019A CN 106368810 A CN106368810 A CN 106368810A
- Authority
- CN
- China
- Prior art keywords
- bearing
- idle pulley
- cover plate
- ring
- belt wheel
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 22
- 235000015250 liver sausages Nutrition 0.000 abstract 1
- 235000014593 oils and fats Nutrition 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 241000521257 Hydrops Species 0.000 description 4
- 206010030113 Oedema Diseases 0.000 description 4
- 239000002360 explosive Substances 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 239000004519 grease Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002028 premature Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000002207 thermal evaporation Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
- F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
- F02B67/06—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Pulleys (AREA)
Abstract
The invention discloses an engine idle wheel assembly which comprises a belt wheel, a bearing, a front cover plate, a rear cover plate and a bolt. The bearing is sleeved with the belt wheel. The front cover plate and the rear cover plate abut against the two sides of the bearing correspondingly. The bolt penetrates the front cover plate, the rear cover plate and the bearing so as to fix the engine idle wheel assembly to an engine support. A radial plate is arranged on the belt wheel. The two side faces of the radial pate are each provided with an annular groove with a set depth. Check rings are arranged on the edge of the front cover plate and the edge of the rear cover plate, the axis directions of the check rings are consistent to the axis direction of the belt wheel, and one part of each check ring extends into the corresponding annular groove. According to the engine idle wheel assembly, through an arranged baffle and groove, water is effectively prevented from entering the bearing in all directions, the water is gradually eliminated before entering the bearing through the centrifugal force and heat generated during work of an idle wheel, and the waterproof performance of the idle wheel is effectively achieved.
Description
Technical field
The present invention relates to a kind of automobile engine driven accessary, more particularly, to a kind of electromotor idle pulley assembly.
Background technology
Roller bearing is widely used in motor head accessory wheel system, such as electromotor, air compressor machine, automatic tensioner and lazy
In wheel, electromotor, compressor of air conditioner have bearing waterproof construction (by bearing chamber by bearing and water segregation), but only lean on idle pulley
The centrifugal force that idle pulley rotation itself produces prevents bearing from intaking, and this mode can not be effectively prevented the water inlet of idle pulley bearing, the water capacity
Easily arriving at bearing thus entering oils and fatss room in end ring lip with inner ring matching part from idle pulley front and rear cover, so that idle pulley is produced
Abnormal sound, has a strong impact on driver comfort, can lead to bearing premature failure in the course of time, and then increases replacing or maintenance cost.Special
Other, in order to improve car load riding comfort, motor head accessory drive system needs to be equipped with more adnexaes, and train often needs
To arrange idle pulley at nearly crank pulley position, at this moment, idle pulley is by from the ground closer to it is easier to be subject to from ground or wheel
Dabble so that the risk of bearing water inlet is bigger.
Fig. 1 is the sectional view of electromotor idle pulley assembly in prior art, and Fig. 2 is electromotor idle pulley assembly in prior art
Explosive view.
Referring to Fig. 1 and Fig. 2, in the prior art, idle pulley mainly include belt wheel 01, bearing 02, front shroud 03, after
Cover plate 04, bolt 05, wherein front shroud 03, back shroud 04 are the torus that there is hole centre, and the central authorities of forward and backward cover plate 03,04 have
In order to position the boss 031,041 of bearing 02 endoporus, the card of the outer annular region 032,042 near outer ring of boss 031,041
Perpendicular to the axis of forward and backward cover plate 03,04, the cover plate outside diameter d of forward and backward cover plate 03,04 0 big 2 millimeter than bearing outside diameter d0,
Front and rear cover plate effect is to prevent dust from entering bearing 02.The oils and fatss room closure 021 of bearing 02,022 one end embed outer ring 023,
Rotate together with bearing 02 outer ring, the other end contacts seal grease by sealing lip 0211,0221 with bearing 02 inner ring 024.Axle
Hold 02 to be pressed in belt shaft bearing bore with certain magnitude of interference, bolt 05 passes through interstitial hole and the bearing 02 of front and rear cover plate 03,04
Endoporus, when idle pulley is installed on electromotor, tightening under effect in bolt 05, because front and rear cover plate 03,04 circular orientation are convex
The effect of platform 031,041, front and rear cover plate 03,04 is coaxial with bearing 02 and front and rear cover plate 03,04 is divided with bearing 02 inner ring both ends of the surface
It is not close to, the card in the first annular region in close outer ring 032,042 of front and rear cover plate 03,04 is parallel to bearing 02 front/rear end.
During idle pulley work, belt wheel is rotated together with bearing 02 outer ring and oils and fatss room closure under the driving of wheel train belt, front and rear cover plate
03rd, 04 is remained stationary as with bearing 02 inner ring.When vehicle travels on the road surface having water or in the rainy day, inevitably wheel is by water
Splash on the train idle pulley of enging cabin, absorption throws away axle in the water on idle pulley rotary part under the effect of idle pulley rotary centrifugal force
Hold 02, thus preventing water from entering oils and fatss room from bearing 02 back-up ring lip with inner ring 024 matching part.
But, prior art does not account for being splashed to the water entrance bearing near bearing face side on front and rear cover plate
Situation.When vehicle travels on the road surface of hydrops or in the rain, cover plate race diameter d0 differs more with idle pulley internal diameter d20, generally
Difference 14～16mm, water is easy on front and rear cover plate near bearing face side, when splashing water herein and being few, such as vehicle row
Sail little in the rain or on the few road surface of hydrops when, the heat that water herein can be produced by idle pulley motion, electromotor work produce
Thermal evaporation is fallen；But, when splashing water herein and being more, such as vehicle travel big in the rain or on the more road surface of hydrops when, this
A little water will be along on cover plate near bearing face side, and joint portion j10 and j20 through cover plate and bearing inner race, inflow axle
Hold inner ring, because when idle pulley works, bearing inner race does not rotate, these water will not be thrown off bearing, and then water will be along bearing
Inner ring outward flange enters oils and fatss room through end ring lip 0211,0221 with inner ring matching part, makes grease deterioration, and then leads
Cause idle pulley insufficient lubrication so as to produce abnormal sound in operation process, have a strong impact on driver comfort, bearing can be led in the course of time
Premature failure, and then increase replacing or maintenance cost.
Content of the invention
It is an object of the invention to provide a kind of electromotor idle pulley assembly, to avoid moisture to join from end ring lip and inner ring
Close position and enter oils and fatss room, eliminate bearing abnormal noise, improve driver comfort, also avoid leading to because of bearing premature failure simultaneously
The cost that bearing replacing or maintenance are produced.
The invention provides a kind of electromotor idle pulley assembly, including belt wheel, bearing, front shroud, back shroud and bolt；Described
Belt wheel is set on described bearing, and described front shroud and described back shroud deduct in the both sides of described bearing respectively, described bolt
Through described forward and backward cover plate and described bearing to be fixed on described electromotor idle pulley assembly on engine support, wherein,
It is provided with disc on described belt wheel, the annular with set depth is offered respectively on the two sides of described disc
Groove；
The edge of described front shroud and described back shroud is provided with back-up ring, the axis direction of described back-up ring and described belt wheel
Axis is to consistent, and a part for described back-up ring extends in described cannelure.
Electromotor idle pulley assembly as above, these, it is preferred to, described front shroud and described back shroud are provided with
First annular region, described first annular region is arranged perpendicular to the axis of described belt wheel, and described back-up ring is vertically set on institute
State the end in first annular region.
Electromotor idle pulley assembly as above, these, it is preferred to, the end of described back-up ring is to described annular groove bottom
Distance be 1～3mm.
Electromotor idle pulley assembly as above, these, it is preferred to, the external diameter of described back-up ring is outer with described cannelure
Footpath is at a distance of 1～2mm.
Electromotor idle pulley assembly as above, these, it is preferred to, described front shroud and described back shroud also set up
There is the second annular region, described second annular region deducts on the inner ring of described bearing, and described second annular region and institute
State first annular region formed stepped.
Electromotor idle pulley assembly as above, these, it is preferred to, described first annular region, described second annular
Region is formed in one with described back-up ring.
Electromotor idle pulley assembly as above, these, it is preferred to, described belt wheel is additionally provided with wheel rim, described wheel
The distance that edge height in the axial direction is formed in the axial direction more than two symmetrical described first annular regions.
Electromotor idle pulley assembly as above, these, it is preferred to, described belt wheel is additionally provided with wheel rim, described wheel
Edge internal diameter is 2～4mm with the distance of described front shroud and the external diameter of described back shroud.
A kind of electromotor idle pulley assembly that the present invention provides, by the setting of baffle plate and groove, effectively from all directions
Block moisture to enter in bearing, then the centrifugal force that produces in working by idle pulley and heat, make moisture before entrance bearing by
Step eliminates, and has effectively achieved idle pulley water resistance.
Brief description
Below in conjunction with the accompanying drawings the specific embodiment of the present invention is described in further detail.
Fig. 1 is the sectional view of electromotor idle pulley assembly in prior art；
Fig. 2 is the explosive view of electromotor idle pulley assembly in prior art；
Fig. 3 is a kind of structural representation of electromotor idle pulley assembly provided in an embodiment of the present invention；
Fig. 4 is a kind of explosive view of electromotor idle pulley assembly provided in an embodiment of the present invention.
Description of reference numerals:
01- belt wheel 011- dead eye 02- bearing
021st, 022- grease seal lid 0211,0221- sealing lip 023- outer ring
024- inner ring 03- front shroud 031,041- boss
032nd, 042- annular region 04- back shroud 05- bolt
J10, j20- joint portion d0- bearing outside diameter d0- cover plate external diameter
D20- idle pulley internal diameter 08- belt wheel 06- front shroud
07- back shroud 09- cannelure 10- disc
11- back-up ring 12- first annular region 13- the second annular region
14- wheel rim 15- groove
Specific embodiment
Embodiments of the invention are described below in detail, the example of described embodiment is shown in the drawings, wherein from start to finish
The element that same or similar label represents same or similar element or has same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
Fig. 3 is a kind of structural representation of electromotor idle pulley assembly provided in an embodiment of the present invention, and Fig. 4 is implemented for the present invention
A kind of explosive view of electromotor idle pulley assembly that example provides.
Referring to Fig. 3 and Fig. 4, embodiments provide a kind of electromotor idle pulley assembly, including belt wheel 08, axle
Hold 02, front shroud 06, back shroud 07 and bolt 05, wherein belt wheel 08 is set on bearing 02, front shroud 06 and 07 point of back shroud
Do not deduct in the both sides of bearing 02, bolt 05 passes through forward and backward cover plate 06,07 and bearing 02 to be fixed on electromotor idle pulley assembly
On engine support；
Wherein, belt wheel 08 is provided with disc 10, the two sides of disc 10 offers respectively there is set depth
Cannelure 09；The edge of front shroud 06 and back shroud 07 is provided with back-up ring 11, the axis of the axis direction of back-up ring 11 and belt wheel 08
To consistent, and a part for back-up ring 11 extends in cannelure 09.
It should be noted that the inner surface of disc 10 constitutes dead eye, after bearing 02 is arranged in dead eye, bearing 02
Outer ring 023 is in close contact with disc 10, and in belt wheel 08 operation process, the outer ring 023 of bearing 02 together rotates with belt wheel 08.
Because a part for back-up ring 11 has extend in cannelure 09 so that bearing 02 is formed about a kind of more closing
Region, when automobile travels in road conditions that are overcast and rainy or having hydrops, moisture is disperseed so that remaining in due to clashing into back-up ring 11
Moisture on back-up ring 11 or in cannelure 09 is little, simultaneously because the centrifugal force that belt wheel 08 rotation produces can throw away residual water again
A part in point, is left little portion of water and is then dissipated by the heat and negative electrode work of the generation of belt wheel 08 operating friction
The heat of vaporization sent out become gas it is often more important that, because the setting of back-up ring 11 is so that front shroud 06 and back shroud 07 and bearing 02
Between form a kind of region of more closing, in terms of existing technologies, heat can be gathered in described envelope by this kind of setting
In the region closed, it is to avoid heat runs off rapidly at the opening that front shroud 06 and back shroud 07 are formed with disc 10, accelerates
The evaporation of moisture on belt wheel 08, thus effectively achieved the performance of idle pulley assembly waterproof.
Further, front shroud 06 and back shroud 07 are provided with first annular region 12, hang down in first annular area 12 domain
The straight axis setting in belt wheel 08, and back-up ring 11 is vertically set on the end in first annular region 12, wherein, first annular region
12 setting can keep out the moisture being splashed and being come by the direction of vertical belt wheel 08 sheave surface, prevents the oils and fatss on bearing 02 from connecing
Contact moisture and go bad, damage bearing 02；And the setting of back-up ring 11 can be kept out by the side splashing of belt wheel 08 wheel disc
The moisture coming, the moisture coming from all directions splashing can be effectively kept out in the collocation in back-up ring 11 and first annular region 12, play
The function of protection bearing 02.
Further, the distance of the end of back-up ring 11 to cannelure 09 bottom is 1～3mm.
Further, the external diameter of back-up ring 11 and the external diameter of cannelure 09 are at a distance of 1～2mm.
Due to the deviation in the size that can exist in back-up ring 11 or forward and backward cover plate 06,07 course of processing, back-up ring 11 is made to exist
Height dimension in axial direction or forward and backward cover plate 06,07 overall dimensions in the axial direction are excessive or too small, or the size of radial direction is not
Or even cannot assemble, for avoiding leading to assembling tired due to scale error uniformly, and then lead to the assembling of forward and backward cover plate 06,07 difficult,
Difficult problem, therefore the distance of the end of back-up ring 11 to cannelure 09 bottom can be adjusted, the external diameter of back-up ring 11 and cannelure 09
Distance between external diameter, to eliminate the impact that scale error is brought to assembling.
Further, front shroud 06 and back shroud 07 are additionally provided with the second annular region 13, the second annular region 13 is supported
Be buckled on bearing 02 inner ring 024, and the second annular region 13 and first annular region 12 formed stepped, wherein, the second annular
The setting in region 13 ensure that steadiness in belt wheel 08 for the bearing 02；Due to belt wheel 08 in working order when, bearing 02 outer
Circle 023 together rotates with belt wheel 08, and the inner ring 024 of bearing 02 and forward and backward cover plate 06,07 are motionless, therefore first annular region 12
Separately positioned with disc 10 with bearing 02 outer ring 023, can avoid belt wheel 08 rotate during due to forward and backward cover plate 06,
07 contact with bearing 02 outer ring 023 and giving causes to wear and tear each other.
It should be noted that the connected mode between first annular region 12, the second annular region 13 and back-up ring 11 is permissible
Have multiple it is preferred that first annular region 12, the second annular region 13 can be formed in one with back-up ring, its process is simple,
Convenient.
Further, belt wheel 08 is additionally provided with wheel rim 14, wheel rim 14 height in the axial direction be more than forward and backward cover plate 06,
The distance that two on 07 symmetrical first annular regions 12 are formed in the axial direction, and the side plane of wheel rim 14 and bearing 02
Side plane between form fluted 15 so that forward and backward cover plate 06,07 complete assembling after, front/rear cover plate 06,07 can be made complete
Entirely it is embedded in groove 15, it is to avoid because the first annular region 12 on forward and backward cover plate 06,07 exceeds the side plane of wheel rim 14
And lead to moisture can to enter from the side of cover plate, it also avoid forward and backward cover plate 06,07 and produce interference with other parts and knock
Touch.
A kind of electromotor idle pulley assembly provided in an embodiment of the present invention, by the setting of baffle plate and groove, effectively from each
Individual direction blocks moisture and enters in bearing, then the centrifugal force that produces in working by idle pulley and heat, makes moisture in entrance axle
Brought forward successive elimination, has effectively achieved idle pulley water resistance.
Construction, feature and the action effect of the present invention, above institute are described in detail above according to the embodiment shown in schema
State only presently preferred embodiments of the present invention, but the present invention is not to limit practical range, every structure according to the present invention shown in drawing
Want made change, or be revised as the Equivalent embodiments of equivalent variations, when still covered with diagram without departing from description spiritual,
All should be within the scope of the present invention.
Claims (7)
1. a kind of electromotor idle pulley assembly, including belt wheel, bearing, front shroud, back shroud and bolt；Described belt wheel is set in described
On bearing, described front shroud and described back shroud deduct in the both sides of described bearing respectively, and described bolt passes through described front/rear cover
Plate and described bearing so that described electromotor idle pulley assembly to be fixed on engine support it is characterised in that:
It is provided with disc on described belt wheel, the cannelure with set depth is offered respectively on the two sides of described disc；
The edge of described front shroud and described back shroud is provided with back-up ring, the axis of the axis direction of described back-up ring and described belt wheel
To consistent, and a part for described back-up ring extends in described cannelure.
2. electromotor idle pulley assembly according to claim 1 is it is characterised in that set on described front shroud and described back shroud
It is equipped with first annular region, described first annular region is arranged perpendicular to the axis of described belt wheel, and described back-up ring is vertically arranged
End in described first annular region.
3. electromotor idle pulley assembly according to claim 2 is it is characterised in that the end of described back-up ring is to described cannelure
The distance of bottom is 1～3mm.
4. electromotor idle pulley assembly according to claim 2 is it is characterised in that the external diameter of described back-up ring and described cannelure
External diameter at a distance of 1～2mm.
5. electromotor idle pulley assembly according to claim 2 is it is characterised in that go back on described front shroud and described back shroud
It is provided with the second annular region, described second annular region deducts on the inner ring of described bearing, and described second annular region
With described first annular region formed stepped.
6. the electromotor idle pulley assembly according to any one of claim 2-5 it is characterised in that described first annular region,
Described second annular region and described back-up ring are formed in one.
7. electromotor idle pulley assembly according to claim 2 is it is characterised in that be additionally provided with wheel rim on described belt wheel, institute
State the distance that wheel rim height in the axial direction is formed in the axial direction more than two symmetrical described first annular regions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610763019.0A CN106368810A (en) | 2016-08-29 | 2016-08-29 | Engine idle wheel assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610763019.0A CN106368810A (en) | 2016-08-29 | 2016-08-29 | Engine idle wheel assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106368810A true CN106368810A (en) | 2017-02-01 |
Family
ID=57901452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610763019.0A Pending CN106368810A (en) | 2016-08-29 | 2016-08-29 | Engine idle wheel assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106368810A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111570824A (en) * | 2020-05-20 | 2020-08-25 | 无锡永凯达齿轮有限公司 | Idler wheel assembly and machining method for optimizing roundness of belt pulley assembly in idler wheel assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010270882A (en) * | 2009-05-25 | 2010-12-02 | Ntn Corp | Bearing with pulley, and dust cover used for the same |
| CN101968107A (en) * | 2010-09-03 | 2011-02-09 | 重庆长安汽车股份有限公司 | Idler assembly of high-sealing engine accessory gear train |
| CN202883957U (en) * | 2012-08-31 | 2013-04-17 | 浙江瑞德利汽车部件有限公司 | Idle wheel and engine provided with idle wheel and vehicle provided with the same |
| JP2015017666A (en) * | 2013-07-11 | 2015-01-29 | Ntn株式会社 | Idler pulley supporting device |
| CN205479181U (en) * | 2016-01-14 | 2016-08-17 | 浙江瑞德利汽车部件有限公司 | Automatic take -up pulley assembly |
-
2016
- 2016-08-29 CN CN201610763019.0A patent/CN106368810A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010270882A (en) * | 2009-05-25 | 2010-12-02 | Ntn Corp | Bearing with pulley, and dust cover used for the same |
| CN101968107A (en) * | 2010-09-03 | 2011-02-09 | 重庆长安汽车股份有限公司 | Idler assembly of high-sealing engine accessory gear train |
| CN202883957U (en) * | 2012-08-31 | 2013-04-17 | 浙江瑞德利汽车部件有限公司 | Idle wheel and engine provided with idle wheel and vehicle provided with the same |
| JP2015017666A (en) * | 2013-07-11 | 2015-01-29 | Ntn株式会社 | Idler pulley supporting device |
| CN205479181U (en) * | 2016-01-14 | 2016-08-17 | 浙江瑞德利汽车部件有限公司 | Automatic take -up pulley assembly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111570824A (en) * | 2020-05-20 | 2020-08-25 | 无锡永凯达齿轮有限公司 | Idler wheel assembly and machining method for optimizing roundness of belt pulley assembly in idler wheel assembly |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant before: Anhui Jianghuai Automotive Co., Ltd. |
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| COR | Change of bibliographic data | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170201 |
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| RJ01 | Rejection of invention patent application after publication |