CN107830064B - A kind of aero-engine bearing supporting device - Google Patents
A kind of aero-engine bearing supporting device Download PDFInfo
- Publication number
- CN107830064B CN107830064B CN201710980752.2A CN201710980752A CN107830064B CN 107830064 B CN107830064 B CN 107830064B CN 201710980752 A CN201710980752 A CN 201710980752A CN 107830064 B CN107830064 B CN 107830064B
- Authority
- CN
- China
- Prior art keywords
- retainer ring
- column
- bearing
- gauge
- snap
- 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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Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000000741 silica gel Substances 0.000 claims description 7
- 229910002027 silica gel Inorganic materials 0.000 claims description 7
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241000239290 Araneae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002360 preparation method Methods 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Support Of The Bearing (AREA)
Abstract
The invention discloses a kind of aero-engine bearing supporting devices, including bearing, the bearing includes inner ring body, the outer wall of the inner ring body is equipped with multiple balls, the inner cavity of the card slot is equipped with snap-gauge, and the upper surface of the snap-gauge is equipped with inserted link, and the top of the inserted link is connected with the second column, the bottom of the snap-gauge is equipped with second spring, and the second spring is connected with the inner wall of card slot.The aero-engine bearing supporting device, intermediate bearing is clamped by the first retainer ring and the second retainer ring, by way of turning bolt, it is made to tighten nut, compress snap-gauge, make the first retainer ring and the second clip bearing, and make when being shaken, the first spring withstands the second column, reduce vibration, and snap-gauge not only limits the relative position of the first column and the second column, the second spring of bottom can also reduce impact force when being impacted, and bring guarantee for the safety of people.
Description
Technical field
The present invention relates to technical field of bearings, specially a kind of aero-engine bearing supporting device.
Background technique
In modern industrial production and daily life, it is seen everywhere the figure of bearing, and the fixation device as bearing,
Bearing bearing, which has been obtained, to be widely applied, such as application No. is the patents of invention of CN 203130990U, including transmission shaft, axis
Hold, the structures such as bearing spider and fixing piece, although the structure of the patent of invention is simple, due to its cannot effective damping,
Cause the shaft rapid wear of engine during aviation, is not only brought for the trip of people and inconvenient also bring security risk.
Summary of the invention
The purpose of the present invention is to provide a kind of aero-engine bearing supporting devices, to solve in above-mentioned background technique
The problem of proposition.
To achieve the above object, the invention provides the following technical scheme: a kind of aero-engine bearing supporting device, packet
Bearing is included, the bearing includes inner ring body, and the outer wall of the inner ring body is equipped with multiple balls, the external installation of the inner ring body
There is outer ring body, the ball is connected with outer ring body overlap joint, and the right hand external of the bearing is equipped with the first retainer ring, first card
Circle is connected by first rotating shaft with the second retainer ring, and the top left of first retainer ring is inserted into the second retainer ring, second card
Circle is connected with bearing overlap joint, and the top of second retainer ring is equipped with nut, and the top of first retainer ring is equipped with the second card
Plate, the inner cavity of second snap-gauge are equipped with bolt, and the bolt sequentially passes through the second snap-gauge and nut, the bolts and nuts
Match, the second shaft, the bottom of second shaft are mounted on the left of the right side of first retainer ring and the second retainer ring
First column is installed, the inner cavity of first column is equipped with the second column, and second column is connected with the second shaft, institute
The bottom for stating the second column is equipped with the first spring, and the bottom end of first spring is connected with the first column, first column
Bottom inner cavity be provided with card slot, the inner cavity of the card slot is equipped with the first snap-gauge, and the upper surface of first snap-gauge is equipped with slotting
Bar, the inserted link run through the first spring, and the top of the inserted link is connected with the second column, and the bottom of first snap-gauge is equipped with
Second spring, the second spring are connected with the inner wall of card slot.
Preferably, the outer wall of first retainer ring and the second retainer ring is mounted on backing plate, and the outer wall of the backing plate is equipped with
The front end of multiple third springs, the third spring is equipped with baffle.
Preferably, pedestal, the bottom installation of the pedestal are mounted at left and right sides of the bottom outer wall of first column
There is rubber pad.
Preferably, the top left hand of first retainer ring is equipped with silica gel head, and the upper and lower surface of the silica gel head is respectively mounted
There is clamping plate, the clamping plate is connected with the first retainer ring.
Preferably, the right end of the bolt is mounted on stubborn bar up and down, and the right end of the stubborn bar is equipped with cotton-padded covering.
Compared with prior art, the beneficial effects of the present invention are:
1. the invention patent clamps intermediate bearing in such a way that the first retainer ring and the second retainer ring are inserted into mutually, prevent
Only it is loosened.
2. the invention patent makes it tighten nut by way of turning bolt, the second snap-gauge is compressed, the first retainer ring is made
With the second clip bearing.
3. the invention patent, and when being shaken, the first spring withstands the second column, reduces vibration.
4. the invention patent, the first snap-gauge of card slot inner cavity not only limits the opposite position of the first column and the second column
It sets, the second spring of bottom can also reduce impact force when being impacted.
5. the invention patent, first rotating shaft and the second shaft make between the first retainer ring and the second retainer ring and the second column
It junction will not be stuck.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is bearing arrangement schematic diagram of the invention；
Fig. 3 is the first pillar construction schematic diagram of the invention；
Fig. 4 is bolt arrangement schematic diagram of the invention；
Fig. 5 is backing structure schematic diagram of the invention.
In figure: 1, bearing, 101, inner ring body, 102, outer ring body, 103, ball, the 2, first retainer ring, the 3, second retainer ring, 4,
One shaft, the 5, second shaft, the 6, first column, the 7, second column, the 8, first spring, 9, inserted link, the 10, first snap-gauge, 11, card
Slot, 12, second spring, 13, bolt, 14, nut, the 15, second snap-gauge, 16, backing plate, 17, third spring, 18, baffle, 19, bottom
Seat, 20, rubber pad, 21, clamping plate, 22, silica gel head, 23, stubborn bar, 24, cotton-padded covering.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-5 is please referred to, the present invention provides a kind of technical solution: a kind of aero-engine bearing supporting device, including
Bearing 1, bearing 1 include inner ring body 101, the teamed ball 103 of inner ring body 101, and the outer wall of inner ring body 101 is equipped with ten balls
103, the outside of inner ring body 101 is equipped with outer ring body 102, and ball 103 is connected with the overlap joint of outer ring body 102, turns bearing 1 freely
Dynamic, the right hand external of bearing 1 is equipped with the first retainer ring 2, and the first retainer ring 2 is connected by first rotating shaft 4 with the second retainer ring 3, makes two
Retainer ring can be opened, and the top left of the first retainer ring 2 is inserted into the second retainer ring 3, and the second retainer ring 3 is connected with the overlap joint of bearing 1, and second
The top of retainer ring 3 is equipped with nut 14, and the top of the first retainer ring 2 is equipped with the second snap-gauge 15, the inner cavity installation of the second snap-gauge 15
Have bolt 13, bolt 13 sequentially passes through the second snap-gauge 15 and nut 14, keep the first retainer ring 2 and the second retainer ring 3 fixed, bolt 13 with
Nut 14 matches, and the left side of the right side of the first retainer ring 2 and the second retainer ring 3 is mounted on the second shaft 5, the bottom of the second shaft 5
Portion is equipped with the first column 6, and the inner cavity of the first column 6 is equipped with the second column 7, and the second column 7 is connected with the second shaft 5, prevents
Only the first retainer ring 2 with the second retainer ring 3 is stuck on the second column 7 does not open, the bottom of the second column 7 is equipped with the first spring 8,
The bottom end of first spring 8 is connected with the first column 6, reduces vibration, the bottom inner cavity of the first column 6 is provided with card slot 11, card slot 11
Inner cavity the first snap-gauge 10 is installed, the upper surface of the first snap-gauge 10 is equipped with inserted link 9, and inserted link 9 runs through the first spring 8, inserted link 9
Top be connected with the second column 7, limit the relative position of the first column 6 and the second column 7, the bottom peace of the first snap-gauge 10
Equipped with second spring 12, second spring 12 is connected with the inner wall of card slot 11, and the outer wall of the first retainer ring 2 and the second retainer ring 3 is respectively mounted
There is backing plate 16, protects the first retainer ring 2 and the second retainer ring 3, there are three third spring 17, third springs for the outer wall installation of backing plate 16
17 front end is equipped with baffle 18, reduces vibration, is mounted on pedestal 19, bottom at left and right sides of the bottom outer wall of the first column 6
The bottom of seat 19 is equipped with rubber pad 20, and the top left hand of the first retainer ring 2 is equipped with silica gel head 22, prevents two retainer rings from having when accessing
It collides with, the upper and lower surface of silica gel head 22 is mounted on clamping plate 21, and clamping plate 21 is connected with the first retainer ring 2, above and below the right end of bolt 13
It is mounted on stubborn bar 23, the right end for twisting bar 23 is equipped with cotton-padded covering 24.
Bearing 1 is fixed on the shaft end for needing to install its engine, bolt 13 is turned, exits it in nut 14,
The second snap-gauge 15 is unclamped, the first retainer ring 2 and the second retainer ring 3 is unclamped, aero-engine is fixed on axis with bearing supporting device
The first retainer ring 2 and the second retainer ring 3 are pulled in the bottom for holding 1, are mutually inserted the two, clamp bearing 1, turn bolt 13, twisted
Into in nut 14, the second snap-gauge 15 is compressed, so that the first retainer ring 2 is clamped bearing 1 with the second retainer ring 3 and does not loosen, if in the mistake of operation
Cheng Zhong, engine receive vibration, and the second column 7, which is jolted, to be taken in the first column 6, and the first spring 8 of its bottom pushes up
Firmly the second column 7 slows down the trend that the second column 7 moves downward, and reduces vibration and brings aero-engine and is supported with bearing
The impact force of device, and the first snap-gauge 10 has limited the position of the second column 7, prevents it excessively downward or drops out the first column
In 6, and the second spring 12 of its bottom slows down the vibration amplitude of the second column 7, plays damping also when being shaken
Effect.
In the description of the present invention, it is to be understood that, term " coaxial ", " bottom ", " one end ", " top ", " middle part ",
The orientation or positional relationship of the instructions such as " other end ", "upper", " side ", " top ", "inner", " front ", " center ", " both ends " is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " setting ", " connection ", " fixation ",
Terms such as " being screwed on " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be with
It is mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside a element, unless otherwise restricted clearly, for the common of this field
For technical staff, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of aero-engine bearing supporting device, including bearing (1), it is characterised in that: the bearing (1) includes inner ring
The outer wall of body (101), the inner ring body (101) is equipped with multiple balls (103), and the outside of the inner ring body (101) is equipped with
Outer ring body (102), the ball (103) and outer ring body (102) overlap joint are connected, and the right hand external of the bearing (1) is equipped with the
One retainer ring (2), first retainer ring (2) are connected by first rotating shaft (4) with the second retainer ring (3), the top of first retainer ring (2)
Portion left end is inserted into the second retainer ring (3), and second retainer ring (3) is connected with bearing (1) overlap joint, the top of second retainer ring (3)
End be equipped with nut (14), the top of first retainer ring (2) is equipped with the second snap-gauge (15), second snap-gauge (15) it is interior
Chamber is equipped with bolt (13), and the bolt (13) sequentially passes through the second snap-gauge (15) and nut (14), the bolt (13) and spiral shell
Female (14) match, and are mounted on the second shaft (5) on the left of the right side of first retainer ring (2) and the second retainer ring (3), described
The bottom of second shaft (5) is equipped with the first column (6), and the inner cavity of first column (6) is equipped with the second column (7), institute
The second column (7) to be stated to be connected with the second shaft (5), the bottom of second column (7) is equipped with the first spring (8), and described
The bottom end of one spring (8) is connected with the first column (6), and the bottom inner cavity of first column (6) is provided with card slot (11), the card
The inner cavity of slot (11) is equipped with the first snap-gauge (10), and the upper surface of first snap-gauge (10) is equipped with inserted link (9), the inserted link
(9) run through the first spring (8), the top of the inserted link (9) is connected with the second column (7), the bottom of first snap-gauge (10)
It is equipped with second spring (12), the second spring (12) is connected with the inner wall of card slot (11).
2. a kind of aero-engine bearing supporting device according to claim 1, it is characterised in that: first retainer ring
(2) it is mounted on backing plate (16) with the outer wall of the second retainer ring (3), the outer wall of the backing plate (16) is equipped with multiple third springs
(17), the front end of the third spring (17) is equipped with baffle (18).
3. a kind of aero-engine bearing supporting device according to claim 1, it is characterised in that: first column
(6) it is mounted on pedestal (19) at left and right sides of bottom outer wall, the bottom of the pedestal (19) is equipped with rubber pad (20).
4. -3 described in any item a kind of aero-engine bearing supporting devices according to claim 1, it is characterised in that: institute
The top left hand for stating the first retainer ring (2) is equipped with silica gel head (22), and the upper and lower surface of the silica gel head (22) is mounted on clamping plate
(21), the clamping plate (21) is connected with the first retainer ring (2).
5. -3 described in any item a kind of aero-engine bearing supporting devices according to claim 1, it is characterised in that: institute
The right end for stating bolt (13) is mounted on stubborn bar (23) up and down, and the right end of the stubborn bar (23) is equipped with cotton-padded covering (24).
6. a kind of application method of aero-engine bearing supporting device, it is characterised in that: be fixed on bearing (1) and need to pacify
On the shaft end for filling its engine, bolt (13) are turned, exit it in nut (14), unclamps the second snap-gauge (15), makes first
Retainer ring (2) and the second retainer ring (3) are unclamped, and aero-engine is fixed on to the bottom of bearing (1) with bearing supporting device, pull the
One retainer ring (2) and the second retainer ring (3) are mutually inserted the two, clamp bearing (1), turn bolt (13), be screwed into nut
(14) it in, compresses the second snap-gauge (15), so that the first retainer ring (2) is clamped bearing (1) with the second retainer ring (3) and do not loosen, if running
During, engine receives vibration, and the second column (7), which is jolted, to be taken in the first column (6), and the first of its bottom
Spring (8) withstands the second column (7), slows down the trend that the second column (7) moves downward, reduces vibration and bring aeroplane engine
The impact force of machine bearing supporting device, and the first snap-gauge (10) has limited the position of the second column (7), prevent its excessively to
It is lower or drop out in the first column (6), and the second spring (12) of its bottom slows down the second column (7) also when being shaken
Vibration amplitude, play the role of damping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710980752.2A CN107830064B (en) | 2017-10-19 | 2017-10-19 | A kind of aero-engine bearing supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710980752.2A CN107830064B (en) | 2017-10-19 | 2017-10-19 | A kind of aero-engine bearing supporting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107830064A CN107830064A (en) | 2018-03-23 |
| CN107830064B true CN107830064B (en) | 2019-07-12 |
Family
ID=61648556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710980752.2A Active CN107830064B (en) | 2017-10-19 | 2017-10-19 | A kind of aero-engine bearing supporting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107830064B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111779768B (en) * | 2020-06-16 | 2022-01-18 | 临清市百诺轴承有限公司 | Long service life's bearing ring |
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|---|---|---|---|---|
| CN2830762Y (en) * | 2005-09-22 | 2006-10-25 | 中冶南方工程技术有限公司 | Rolling bearing block |
| KR20080037290A (en) * | 2006-10-25 | 2008-04-30 | 주식회사 케이피에스 | Propeller shaft center bearing support assembly |
| CN201487127U (en) * | 2009-07-29 | 2010-05-26 | 东莞宏威数码机械有限公司 | Vibration reduction mechanism |
| CN202274041U (en) * | 2011-09-28 | 2012-06-13 | 华锐风电科技(集团)股份有限公司 | Shock-absorption mechanism of wind generating set gear box torque arm |
| CN202338571U (en) * | 2011-12-15 | 2012-07-18 | 无锡光群雷射科技有限公司 | Bearing seat for inflatable shaft of coating machine |
| CN202812144U (en) * | 2012-08-24 | 2013-03-20 | 华锐风电科技(集团)股份有限公司 | Support device of gear case and wind driven generator |
| RU2578817C1 (en) * | 2015-02-24 | 2016-03-27 | Мария Олеговна Стареева | Stareeva vibration isolator for equipment |
| CN106931040A (en) * | 2017-04-03 | 2017-07-07 | 响水县自行车三套轴有限公司 | One kind has automatic oiling function bearing block |
| CN106931041A (en) * | 2017-05-21 | 2017-07-07 | 响水县永恒传动件制造有限公司 | A kind of duplex bearing fixed bearing block |
-
2017
- 2017-10-19 CN CN201710980752.2A patent/CN107830064B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2830762Y (en) * | 2005-09-22 | 2006-10-25 | 中冶南方工程技术有限公司 | Rolling bearing block |
| KR20080037290A (en) * | 2006-10-25 | 2008-04-30 | 주식회사 케이피에스 | Propeller shaft center bearing support assembly |
| CN201487127U (en) * | 2009-07-29 | 2010-05-26 | 东莞宏威数码机械有限公司 | Vibration reduction mechanism |
| CN202274041U (en) * | 2011-09-28 | 2012-06-13 | 华锐风电科技(集团)股份有限公司 | Shock-absorption mechanism of wind generating set gear box torque arm |
| CN202338571U (en) * | 2011-12-15 | 2012-07-18 | 无锡光群雷射科技有限公司 | Bearing seat for inflatable shaft of coating machine |
| CN202812144U (en) * | 2012-08-24 | 2013-03-20 | 华锐风电科技(集团)股份有限公司 | Support device of gear case and wind driven generator |
| RU2578817C1 (en) * | 2015-02-24 | 2016-03-27 | Мария Олеговна Стареева | Stareeva vibration isolator for equipment |
| CN106931040A (en) * | 2017-04-03 | 2017-07-07 | 响水县自行车三套轴有限公司 | One kind has automatic oiling function bearing block |
| CN106931041A (en) * | 2017-05-21 | 2017-07-07 | 响水县永恒传动件制造有限公司 | A kind of duplex bearing fixed bearing block |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107830064A (en) | 2018-03-23 |
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| CP02 | Change in the address of a patent holder |
Address after: 251717 east of Wenhua Road, zaohuli Town, Huimin County, Binzhou City, Shandong Province (600m east of zaohuli town government) Patentee after: Liu Helai Address before: 315171 189 collection ring road, Ji Shi Gang Town, Haishu District, Ningbo, Zhejiang Patentee before: Liu Helai |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Yongli Inventor after: Liu Helai Inventor before: Liu Helai |
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| TR01 | Transfer of patent right |
Effective date of registration: 20240328 Address after: No. 285 Lingyun Street, Nanshi District, Baoding City, Hebei Province, 071000 Patentee after: Wang Yongli Country or region after: China Address before: 251717 east of Wenhua Road, zaohuli Town, Huimin County, Binzhou City, Shandong Province (600m east of zaohuli town government) Patentee before: Liu Helai Country or region before: China |