CN111564929B - Main and standby motor switching device - Google Patents
Main and standby motor switching device Download PDFInfo
- Publication number
- CN111564929B CN111564929B CN202010454418.5A CN202010454418A CN111564929B CN 111564929 B CN111564929 B CN 111564929B CN 202010454418 A CN202010454418 A CN 202010454418A CN 111564929 B CN111564929 B CN 111564929B
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- motor
- bevel gear
- main shaft
- clutch
- gear
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- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 230000008859 change Effects 0.000 abstract description 4
- 230000009347 mechanical transmission Effects 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/25—Devices for sensing temperature, or actuated thereby
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/11—Structural association with clutches, brakes, gears, pulleys or mechanical starters with dynamo-electric clutches
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention relates to the technical field of mechanical transmission equipment, in particular to a main and standby motor switching device which comprises at least two motors and a main shaft, wherein the main shaft is vertically arranged with the axes of the motors and is in transmission connection with an output shaft through a planetary gear set; can monitor the temperature and the rotational speed of motor operation through temperature sensor and revolution speed sensor, the load appears too big when the motor of operation, when overheated, can shut down to it and break away from the output, and start the idle load of stand-by motor simultaneously, make it reach corresponding rotational speed fast, utilize electric actuator to be connected it with the separation and reunion, accomplish power take off's automatic replacement, and in the clearance of switching, utilize the flywheel can reduce the rotational speed change of main shaft, make the power switching process more smooth-going, and do not have two motors full load operation simultaneously, reduce the electric wire netting influence.
Description
Technical Field
The invention relates to the technical field of mechanical transmission equipment, in particular to a main and standby motor switching device.
Background
Air preheater among the thermal power generating unit is bulky, belong to heavy load starting equipment, in order to guarantee the reliable operation of system, avoid the stoppage of production accident because of motor fault causes, the owner that generally adopts at present, two of auxiliary motor drag one with the speed reducer rigid coupling, the mode of converter speed governing, utility model discloses a master spare motor auto-change over device based on permanent-magnet drive technique is proposed as application number CN201520083146.7, its scheme utilizes magnetic torque transmission, directly provide two power input in to the speed reducer, realize main stand-by motor's free switching, but magnetic torque transmission is inefficient, and when switching master spare motor, need two motors full load operation simultaneously and steady, just can break off another, cause the load of electric wire netting too high.
Disclosure of Invention
The invention aims to provide a main and standby motor switching device to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: the main and standby motor switching device comprises at least two motors and a main shaft which is arranged perpendicular to the axes of the motors, wherein the main shaft is in transmission connection with an output shaft through a planetary gear set, and an inertia wheel is arranged on the output shaft; the motor with be connected through clutch and main shaft gear train transmission between the main shaft, just be equipped with on the motor and be used for detecting the rotational speed detector A of motor shaft rotational speed, install the guide rail between motor and the load face, just one side of motor is equipped with and is used for control clutch divides/closes's electric actuator, still be equipped with the temperature sensor who is used for detecting its temperature signal on the motor, temperature sensor with electric actuator signal connection.
Preferably, the main shaft gear set comprises a main shaft bevel gear, a bevel gear and a rotating shaft support, the main shaft bevel gear is fixed on the main shaft, the bevel gear is coaxially connected with the clutch device, the main shaft bevel gear is meshed with the bevel gear, the rotating shaft support is rotatably connected with the bevel gear, a rotating speed sensor B for detecting the rotating speed of the bevel gear is arranged on the rotating shaft support, and the transmission ratio between the main shaft bevel gear and the bevel gear is 1: 1.
Preferably, the flywheel includes axle sleeve, branch and counter weight ring, the axle sleeve is fixed the outer wall of main shaft, the outer wall of axle sleeve is fixed with at least three branch that are central symmetry and distribute, the other end sliding connection of branch is in the inner wall of counter weight ring, branch with be equipped with extension spring between the counter weight ring.
Preferably, the inner wall of the counterweight ring is provided with an annular groove, one end, far away from the shaft sleeve, of the support rod is provided with a sliding block matched with the groove, a limiting block is fixed on the inner wall of the groove, the extension spring is located between the sliding block and the limiting block, the sliding block and the extension spring are corresponding in number.
Preferably, a roller is arranged between the sliding block and the counterweight ring.
Preferably, the planetary gear set comprises a fixed gear ring, a planet wheel, a sun wheel and a planet carrier, the sun wheel is fixed on the output shaft, the planet carrier is fixedly connected with the output shaft, and the planet carrier is connected with the fixed gear ring and the sun wheel in a meshed mode through the planet wheel.
Preferably, the electric actuator is an electric push rod.
Compared with the prior art, the invention has the beneficial effects that:
the invention can monitor the temperature and the rotating speed of the motor operation through the temperature sensor and the rotating speed sensor, when the load capacity of the motor in operation is overlarge and overheating occurs, the motor can be stopped to be separated from output, and simultaneously the standby motor is started in a no-load way to quickly reach the corresponding rotating speed, the motor is connected with the clutch through the electric actuating mechanism to finish the automatic replacement of power output, in the switching gap, the rotating speed change of the main shaft can be reduced through the inertia wheel, the power switching process is smoother, the two motors do not simultaneously run in a full load way, the influence on a power grid is reduced, and the connection of the teeth and the teeth used by the clutch device is better in transmission efficiency, more accurate in transmission and easy to control a load end.
Drawings
Fig. 1 is a schematic structural diagram of a main/standby motor switching device according to the present invention;
FIG. 2 is a schematic structural diagram of a motor and an electric actuator according to an embodiment of the present invention;
FIG. 3 is a schematic block diagram of the switching apparatus for primary and secondary motors according to the present invention;
fig. 4 is a schematic structural diagram of an inertia wheel according to an embodiment of the invention.
Reference numbers in the figures: 1. a motor; 11. a guide rail; 12. a coupling; 13. an electric actuator; 14. a temperature sensor; 15. a rotation speed detector A; 2. a clutch device; 201. A clutch A part; 202. a clutch B part; 3. a main shaft gear set; 31. a main shaft bevel gear; 32. a bevel gear; 33. a rotating shaft bracket; 34. a rotation speed sensor B; 4. a main shaft; 5. an inertia wheel; 51. a shaft sleeve; 52. a strut; 521. a slider; 53. a counterweight ring; 531. a limiting block; 54. an extension spring; 61. fixing the gear ring; 62. a planet wheel; 63. a sun gear; 64. a planet carrier; 7. and an output shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b): as shown in fig. 1 to 4, the active/standby motor switching device includes at least two motors 1 and a main shaft 4 arranged perpendicular to the axes of the motors 1, the main shaft 4 is in transmission connection with an output shaft 7 through a planetary gear set, an inertia wheel 5 is arranged on the output shaft 7, the inertia wheel 5 can keep the rotation of the output shaft 7 smooth, and when the two motors 1 perform power switching, the change rate of the rotation speed of the output shaft 7 can be reduced in the gap; the motor 1 is in transmission connection with the spindle 4 through the clutch device 2 and the spindle gear set 3, the motor 1 is provided with a rotating speed detector A15 for detecting the rotating speed of a rotating shaft of the motor 1, a guide rail 11 is arranged between the motor 1 and a load surface, one side of the motor 1 is provided with an electric actuator 13 for controlling the on/off of the clutch device 2, the motor 1 is also provided with a temperature sensor 14 for detecting a temperature signal of the motor, the temperature sensor 14 is in signal connection with the electric actuator 13, as shown in figure 3, when the temperature sensor 14 detects that the temperature of the running motor 1 exceeds a preset value or the running time of the motor 1 exceeds a preset value, an action signal is sent out, specifically, the running motor 1 is powered off or stepped down, the electric actuator 13 is disengaged from the clutch device 2 at the same time, and the other motor is powered on to start in an idle load and gradually increase the pressure, until its rotational speed is the same with the rotational speed of main shaft gear train 3, also another electric actuator 13 makes it combine with clutch 2 simultaneously, realize the combination of tooth and tooth between clutch A portion 201 and clutch B portion 202 like this, collision and wearing and tearing between the effectual reduction tooth have increased driven precision and transmission efficiency simultaneously, and whole switching process time consuming is short, it is little to the undulant influence of electric wire netting, output shaft 7 speed fluctuation is little, equipment operation is comparatively smooth-going.
Specifically, the main shaft gear set 3 includes a main shaft bevel gear 31, a bevel gear 32 and a rotating shaft support 33, the main shaft bevel gear 31 is fixed on the main shaft 4, the bevel gear 32 is coaxially connected with the clutch device 2, the main shaft bevel gear 31 is meshed with the bevel gear 32, the rotating shaft support 33 is rotatably connected with the bevel gear 32, and a rotating speed sensor B34 for detecting the rotating speed of the bevel gear 32 is arranged on the rotating shaft support 33, the input power can be perpendicular to the transmission direction of the main shaft 4 through the design of the main shaft bevel gear 31 and the bevel gear 32, that is, a plurality of motors 1 are easily arranged as power input, and the bevel gear 32 is connected with the output end of the motor 1, so that smooth connection between the motors 1 and the bevel.
Specifically, the transmission ratio between the spindle bevel gear 31 and the bevel gear 32 is 1:1, on one hand, because the bevel gear 32 always rotates along with the spindle bevel gear 31 and the spindle 4, when the bevel gear 32 has no power input, the bevel gear becomes a load, if a conventional pinion is adopted, the load resistance is increased, and the efficiency is reduced, therefore, the transmission ratio of 1:1 is adopted, and in addition, because the transmission ratio is connected with the output end of the motor 1, the rotation speed is consistent, calculation is facilitated, and the calculation accuracy is higher.
Specifically, the inertia wheel 5 includes a shaft sleeve 51, a support rod 52 and a counterweight ring 53, the shaft sleeve 51 is fixed on the outer wall of the output shaft 7, at least three support rods 52 which are distributed in central symmetry are fixed on the outer wall of the shaft sleeve 51, the other end of each support rod 52 is slidably connected to the inner wall of the counterweight ring 53, an extension spring 54 is arranged between each support rod 52 and the counterweight ring 53, an annular groove is arranged on the inner wall of the counterweight ring 53, a slider 521 which is matched with the groove is arranged at one end of each support rod 52 far away from the shaft sleeve 51, a limiting block 531 is fixed on the inner wall of each groove, the extension spring 54 is arranged between each slider 521 and the limiting block 531, the limiting blocks 531, the sliders 521 and the extension springs 54 are in corresponding number, when the output shaft 7 is started, the shaft sleeve 51 can rotate first, large torque load cannot be caused on the output shaft 7, the force between the strut 52 and the tension spring 54 increases until equilibrium is reached, and the weight ring 53 follows the rotation of the sleeve 51 more slowly, so that a reduction of the starting load during faster starting is achieved.
Specifically, the roller is disposed between the slider 521 and the weight ring 53, so that frictional resistance with the weight ring 53 can be reduced.
Specifically, the planetary gear set comprises a fixed gear ring 61, a planetary gear 62, a sun gear 63 and a planet carrier 64, the sun gear 63 is fixed on the main shaft 4, the planet carrier 64 is fixedly connected with the output shaft 7, the planet carrier 64 is meshed with the fixed gear ring 61 and the sun gear 63 through the planetary gear 62, and the driving torque of the main shaft 4 is reduced through the planetary gear set, so that the control of the main shaft 4 by the motor 1 can be facilitated, and the faster load regulation of the motor 1 is realized.
Specifically, the electric actuator 13 is an electric push rod, and the electric push rod has the advantages of quick response, high transmission precision and easy control.
The working principle is as follows: when the output shaft 7 is started, the shaft sleeve 51 will follow the rotation first, and will not set a large torque load to the output shaft 7, at the same time, the force between the strut 52 and the extension spring 54 will gradually increase until reaching the balance state, and the counterweight ring 53 will follow the rotation of the shaft sleeve 51 with a delay, so that the purpose of reducing the start load in the faster starting process can be achieved, and when the output shaft 7 loses power, i.e. when the two motors 1 are switched, the rotation of the output shaft 7 can be kept smooth by the inertia wheel 5, and no sudden change of speed will occur, as shown in fig. 3, when the temperature sensor 14 detects that the temperature of the running motor 1 exceeds the preset value, or when the running time of the motor 1 exceeds the preset value, an action signal will be sent, specifically, the running motor 1 is powered off or stepped down, and at the same time the electric actuator 13 disengages the clutch device 2, and another motor is electrified to carry out no-load starting and gradually increase the pressure until the rotating speed of the motor is the same as that of the main shaft gear set 3, and another electric actuating mechanism 13 enables the motor to be combined with the clutch device 2, so that the combination of teeth and teeth between the clutch A part 201 and the clutch B part 202 is realized, the transmission accuracy and the transmission efficiency are increased, the time consumed in the whole switching process is short, the fluctuation influence on a power grid is small, the speed fluctuation of the output shaft 7 is small, and the equipment runs smoothly.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The master and standby motor switching device is characterized in that: the device comprises at least two motors (1) and a main shaft (4) which is arranged perpendicular to the axis of the motors (1), wherein the main shaft (4) is in transmission connection with an output shaft (7) through a planetary gear set, and an inertia wheel (5) is arranged on the output shaft (7); motor (1) with be connected through clutch (2) and main shaft gear set (3) transmission between main shaft (4), just be equipped with on motor (1) and be used for detecting rotational speed detector A (15) of motor (1) pivot rotational speed, install guide rail (11) between motor (1) and the load face, just one side of motor (1) is equipped with and is used for control clutch (2) divides/closes electric actuator (13), still be equipped with temperature sensor (14) that are used for detecting its temperature signal on motor (1), temperature sensor (14) with electric actuator (13) signal connection, clutch (2) are including clutch A portion (201) and clutch B portion (202) of symmetric distribution, clutch A portion (201) are connected on main shaft gear set (3), the clutch B part (202) is connected to the output end of the motor (1) through a coupler (12);
flywheel (5) include axle sleeve (51), branch (52) and counter weight ring (53), axle sleeve (51) are fixed the outer wall of main shaft (4), the outer wall of axle sleeve (51) is fixed with at least three branch (52) that are central symmetry and distribute, the other end sliding connection of branch (52) is in the inner wall of counter weight ring (53), branch (52) with be equipped with extension spring (54) between counter weight ring (53).
2. The active/standby motor switching device according to claim 1, wherein: the spindle gear set (3) comprises a spindle bevel gear (31), a bevel gear (32) and a rotating shaft support (33), the spindle bevel gear (31) is fixed on a spindle (4), the bevel gear (32) is coaxially connected with the clutch device (2), the spindle bevel gear (31) is meshed with the bevel gear (32), the rotating shaft support (33) is rotatably connected with the bevel gear (32), a rotating speed sensor B (34) for detecting the rotating speed of the bevel gear (32) is arranged on the rotating shaft support (33), and the transmission ratio between the spindle bevel gear (31) and the bevel gear (32) is 1: 1.
3. The active/standby motor switching device according to claim 1, wherein: the inner wall of the counterweight ring (53) is provided with an annular groove, one end, far away from the shaft sleeve (51), of the support rod (52) is provided with a sliding block (521) matched with the groove, a limiting block (531) is fixed on the inner wall of the groove, the extension spring (54) is located between the sliding block (521) and the limiting block (531), the sliding block (521) and the extension spring (54) are corresponding in number.
4. The active/standby motor switching device according to claim 3, wherein: and a roller is arranged between the sliding block (521) and the counterweight ring (53).
5. The active/standby motor switching device according to claim 1, wherein: planetary gear set includes fixed ring gear (61), planet wheel (62), sun gear (63) and planet carrier (64), sun gear (63) are fixed on output shaft (7), planet carrier (64) with output shaft (7) fixed connection, planet carrier (64) pass through planet wheel (62) with fixed ring gear (61), sun gear (63) meshing connection, inertia wheel (5) set up on planet carrier (64).
6. The active/standby motor switching device according to any one of claims 1 to 5, characterized in that: the electric actuating mechanism (13) is an electric push rod.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110084504.6A CN112865417A (en) | 2020-05-26 | 2020-05-26 | Main and standby motor switching device |
| CN202110084526.2A CN112865418A (en) | 2020-05-26 | 2020-05-26 | Main and standby motor switching device |
| CN202010454418.5A CN111564929B (en) | 2020-05-26 | 2020-05-26 | Main and standby motor switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010454418.5A CN111564929B (en) | 2020-05-26 | 2020-05-26 | Main and standby motor switching device |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110084526.2A Division CN112865418A (en) | 2020-05-26 | 2020-05-26 | Main and standby motor switching device |
| CN202110084504.6A Division CN112865417A (en) | 2020-05-26 | 2020-05-26 | Main and standby motor switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111564929A CN111564929A (en) | 2020-08-21 |
| CN111564929B true CN111564929B (en) | 2021-02-19 |
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Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010454418.5A Active CN111564929B (en) | 2020-05-26 | 2020-05-26 | Main and standby motor switching device |
| CN202110084504.6A Withdrawn CN112865417A (en) | 2020-05-26 | 2020-05-26 | Main and standby motor switching device |
| CN202110084526.2A Withdrawn CN112865418A (en) | 2020-05-26 | 2020-05-26 | Main and standby motor switching device |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110084504.6A Withdrawn CN112865417A (en) | 2020-05-26 | 2020-05-26 | Main and standby motor switching device |
| CN202110084526.2A Withdrawn CN112865418A (en) | 2020-05-26 | 2020-05-26 | Main and standby motor switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN111564929B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112018950B (en) * | 2020-08-27 | 2021-06-25 | 苏州玛旭自动化科技有限公司 | Active feedback motor for dynamic reconfiguration of drive system |
| CN112413003B (en) * | 2020-11-10 | 2022-07-12 | 中国航空工业集团公司西安飞行自动控制研究所 | Input channel switching mechanism based on electromagnetic clutch |
| CN112546946B (en) * | 2020-12-08 | 2021-08-13 | 山东瑞尚机械有限公司 | Aluminum oxide seed precipitation decomposer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899707A (en) * | 2012-12-27 | 2014-07-02 | 平和离合器工业株式会社 | Dual mass flywheel |
| CN206398010U (en) * | 2016-03-16 | 2017-08-11 | 芜湖东光大华机械制造有限公司 | A kind of engine flywheel assembly |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203332891U (en) * | 2013-05-16 | 2013-12-11 | 宝钢不锈钢有限公司 | Motor rapid online switching device |
| CN108312893B (en) * | 2017-01-17 | 2020-12-04 | 深圳市航盛电子股份有限公司 | Double-motor coordination control system and method |
| CN208169431U (en) * | 2018-03-06 | 2018-11-30 | 欧拓（长沙）汽车配件有限公司 | A kind of stable type Automobile flywheel |
| CN208479379U (en) * | 2018-07-11 | 2019-02-05 | 国家能源集团谏壁发电厂 | A kind of boiler air preheater reduction gearing mechanism for being conducive to protect motor and install convenient |
| CN210003776U (en) * | 2019-04-15 | 2020-01-31 | 刘帅 | novel labor-saving inertia wheel |
| CN209129908U (en) * | 2019-04-18 | 2019-07-19 | 西安联创分布式可再生能源研究院有限公司 | The active and standby air blower of blast furnace and Blast Furnace Gas Turbine machine coaxial electrospinning |
| CN210380515U (en) * | 2019-09-20 | 2020-04-21 | 合肥渥孚电力科技有限公司 | Air preheater main motor driving system |
| CN111025890B (en) * | 2019-12-18 | 2023-10-13 | 国家能源集团谏壁发电厂 | Synchronous permanent magnet coupling driving system of air preheater of power plant |
-
2020
- 2020-05-26 CN CN202010454418.5A patent/CN111564929B/en active Active
- 2020-05-26 CN CN202110084504.6A patent/CN112865417A/en not_active Withdrawn
- 2020-05-26 CN CN202110084526.2A patent/CN112865418A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899707A (en) * | 2012-12-27 | 2014-07-02 | 平和离合器工业株式会社 | Dual mass flywheel |
| CN206398010U (en) * | 2016-03-16 | 2017-08-11 | 芜湖东光大华机械制造有限公司 | A kind of engine flywheel assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111564929A (en) | 2020-08-21 |
| CN112865418A (en) | 2021-05-28 |
| CN112865417A (en) | 2021-05-28 |
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Effective date of registration: 20210202 Address after: 325600 No.98, niubidong village, Lecheng Town, Yueqing City, Wenzhou City, Zhejiang Province Applicant after: Hu Yan Address before: 214400 No.5 Yingbin Avenue, Qiaoqi Town, Jiangyin City, Wuxi City, Jiangsu Province Applicant before: Fang Peng |
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Effective date of registration: 20230807 Address after: No. 34 Xingfu Road, Chengcheng, Boshan District, Zibo City, Shandong Province, 255000 Patentee after: Shandong kaiou Motor Technology Co.,Ltd. Address before: 325600 No.98, niubidong village, Lecheng Town, Yueqing City, Wenzhou City, Zhejiang Province Patentee before: Hu Yan |
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Denomination of invention: Main and backup motor switching device Granted publication date: 20210219 Pledgee: Weihai Commercial Bank Co.,Ltd. Zibo Branch Pledgor: Shandong kaiou Motor Technology Co.,Ltd. Registration number: Y2024980007835 |
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