CN111716087A - Motor replacing device for air cooler of converter station - Google Patents
Motor replacing device for air cooler of converter station Download PDFInfo
- Publication number
- CN111716087A CN111716087A CN202010762612.XA CN202010762612A CN111716087A CN 111716087 A CN111716087 A CN 111716087A CN 202010762612 A CN202010762612 A CN 202010762612A CN 111716087 A CN111716087 A CN 111716087A
- Authority
- CN
- China
- Prior art keywords
- motor
- air cooler
- converter station
- base
- replacing
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/0006—Disassembling, repairing or modifying dynamo-electric machines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to the field of replacement of air cooler motors, and discloses a replacement device of a converter station air cooler motor. The motor replacing device can flexibly clamp and fix the motor at the high position and convey the motor to the ground for replacement, the whole process can be completed by one person, and the operation intensity is low. Most importantly, after the motor is conveyed to the ground, the heavy motor does not need to be manually disassembled from the supporting platform, and then disassembly and maintenance work are carried out, the motor can be directly rotated in a clamping and fixing state, so that maintenance personnel can directly maintain the motor on the replacing device, and can directly convey the motor to a high position after maintenance, thereby greatly reducing maintenance time and labor cost and improving maintenance efficiency.
Description
Technical Field
The invention relates to the technical field of replacement of air cooler motors, in particular to a replacement device of a converter station air cooler motor.
Background
At present, an external air cooling system (such as an air cooler) is adopted in a converter station in an electric power system to cool internal cold water, so that a converter valve is ensured to work within a proper temperature range. The air cooler is the core equipment of (special) high-voltage converter station cooling system, often involves work such as mechanical seal change, motor bearing change and ally oneself with uranium ware change among the air cooler maintenance process, and the most important one of above-mentioned multinomial work is the motor change. The motor belongs to an inverted hanging type structure, a bracket is not arranged at the bottom, the whole weight is about 40-200Kg, the weight is heavier, and the motor is inconvenient to carry manually.
The Chinese patent application No. CN201310409579.2 discloses a motor replacing device for an air cooling system outside a valve, which comprises a manual lifting platform, wherein universal wheels are installed at the bottom of the manual lifting platform, at least 2 positioning frames are installed at the top of the manual lifting platform, an adjusting screw rod is installed on each positioning frame, one end of each adjusting screw rod is provided with a rotating handle, the other end of each adjusting screw rod penetrates through the positioning frame and then is connected with a motor fixing sleeve, and the adjusting screw rods are in threaded connection with the positioning frames; the technical scheme of the replacing device solves the problem of replacing the field motor, eliminates the hidden danger of equipment, brings safety benefits, reduces the time for replacing the motor, and can timely replace the abnormal motor while ensuring the safe and stable operation of a direct current system.
However, in the technical scheme, the matching of the 2 positioning frames can only ensure that the motor is clamped, and a specially-assigned person is required to carry the motor to the lifting platform beside the motor at a high position in the clamping process, and the motor is fixed by the motor fixing clamping sleeve through the screw rod adjusted by an operator, so that the motor can be fixed only by the mutual matching between ground operators and high-position operators; in addition, after the motor descends to ground, still need the cooperation of multiple maintainers to carry the heavier motor off by lift platform and be horizontal with the motor from vertical adjustment, carry out the maintenance work of motor again, consequently, change 1 trouble motor and need more manpowers, consuming time for a long time, influenced maintenance efficiency to a certain extent.
Disclosure of Invention
The invention aims to provide a converter station air cooler motor replacing device which is convenient for clamping and fixing a motor without manual intervention, convenient for overhauling the motor on the replacing device, free from disassembling the motor from the replacing device, convenient to operate, time-saving and labor-saving and capable of improving the overhauling efficiency.
The embodiment of the invention is realized by the following steps:
the utility model provides a device is changed to converter station air cooler motor, includes lift platform, lift platform top is equipped with and is used for treating the clamping mechanism who presss from both sides tight of motor of changing to and be used for the rotary mechanism with the clamping mechanism rotation.
Further, the clamping mechanism comprises two movable jaws which are symmetrically arranged, and a driving mechanism for driving the openings of the two movable jaws to open and close.
Furthermore, actuating mechanism includes a pair of fixed jack catch, one fixed jack catch and one the activity jack catch passes through first activity hinge connection, and is a pair of still be provided with a pneumatic cylinder between the fixed jack catch, the output shaft end of pneumatic cylinder is provided with a hinge seat, the both sides of hinge seat respectively through second activity hinge with first activity hinge is articulated.
Furthermore, the rotating mechanism comprises a rotating shaft and a driving motor, and the output end of the rotating shaft is fixedly connected with the hydraulic cylinder; and a protective cover is arranged on the outer side of the driving motor.
Furthermore, a fixed seat is arranged above the lifting platform, the rotating shaft penetrates through the fixed seat and is connected with the hydraulic cylinder, and a hydraulic control pipeline is further arranged on the fixed seat and is connected with a hydraulic control box.
Further, lift platform includes the base and sets up the supporting platform in the base top, be connected through a plurality of hydraulic telescoping rod between supporting platform and the base.
Furthermore, the clamping mechanism and the rotating mechanism are both arranged on the supporting platform.
Furthermore, a hydraulic control box is further arranged on the base, and a plurality of control rods are arranged on the hydraulic control box.
Furthermore, the bottom of the base is provided with a plurality of self-locking universal wheels, and one side of the base is provided with a fixed handle.
The invention has the beneficial effects that:
the motor replacing device is low in cost, can flexibly clamp and fix the motor at a high position and convey the motor to the ground for replacement, can be operated by one person in the whole process, is low in operation intensity, greatly reduces the operation cost, saves labor force, and is safe in operation process. Most importantly, after the motor is conveyed to the ground, the heavy motor does not need to be manually disassembled from the supporting platform, and then disassembly and maintenance work are carried out, the motor can be directly rotated in a clamping and fixing state, so that maintenance personnel can directly maintain the motor on the replacing device, and can directly convey the motor to a high position after maintenance, thereby greatly reducing maintenance time and labor cost and improving maintenance efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of an air cooler motor replacing device of a converter station according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a clamping mechanism and a rotating mechanism according to an embodiment of the present invention;
fig. 3 is a top view of a clamping mechanism and a rotating mechanism according to an embodiment of the present invention.
Icon: 1-lifting platform, 11-supporting platform, 12-hydraulic telescopic rod, 13-base, 14-self-locking universal wheel, 15-fixed handle, 2-clamping mechanism, 21-movable jaw, 22-driving mechanism, 221-first movable hinge, 222-fixed jaw, 223-second movable hinge, 224-hinge seat, 225-hydraulic cylinder, 23-fixed seat, 24-hydraulic control pipeline, 3-rotating mechanism, 31-rotating shaft, 32-driving motor, 33-protective cover, 4-hydraulic control box and 41-control rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Examples
Referring to fig. 1-3, the present embodiment provides a converter station air cooler motor replacing device, which includes a lifting platform 1, a clamping mechanism 2 for clamping a motor to be replaced and a rotating mechanism 3 for rotating the clamping mechanism 2 are disposed above the lifting platform 1.
In this embodiment, the clamping mechanism 2 includes two movable jaws 21 symmetrically arranged, and a driving mechanism 22 for driving the openings of the two movable jaws 21 to open and close; specifically, the driving mechanism 22 includes a pair of fixed claws 222, and each movable claw 21 is connected to one fixed claw 222 by a first movable hinge 221; a hydraulic cylinder 225 is arranged between the pair of fixed claws 222, a hinge base 224 is arranged at the output shaft end of the hydraulic cylinder 225, and two sides of the hinge base 224 are respectively hinged with the first movable hinge 221 through a second movable hinge 223.
In this embodiment, the rotating mechanism 3 includes a rotating shaft 31 and a driving motor 32, and an output end of the rotating shaft 31 is fixedly connected to the hydraulic cylinder 225; a protective cover 33 is arranged outside the driving motor 32.
In this embodiment, a fixing seat 23 is disposed above the lifting platform 1, the rotating shaft 31 penetrates through the fixing seat 23 and is connected to the hydraulic cylinder 225, and a hydraulic control pipeline 24 is further disposed on the fixing seat 23.
In this embodiment, the lifting platform 1 includes a base 13 and a supporting platform 11 disposed above the base 13, and the supporting platform 11 and the base 13 are connected through a plurality of hydraulic telescopic rods 12.
In this embodiment, the clamping mechanism 2 and the rotating mechanism 3 are both disposed on the supporting platform 11.
In this embodiment, the base 13 is further provided with a hydraulic control box 4.
In this embodiment, the bottom of the base 13 is provided with a plurality of self-locking universal wheels 14, and one side of the base 13 is provided with a fixed handle 15.
The working principle is as follows: it should be noted that the base 13 of the device can be driven by an electric motor, thereby saving manpower; the hydraulic control box 4 is provided with a plurality of control circuits including control of the hydraulic telescopic rod 12, control of the hydraulic cylinder 225, control of the rotating shaft 31, and the like; when the motor at the high position needs to be replaced, the device is pushed to a preset position, and then the control rod 41 of the control circuit for controlling the hydraulic telescopic rod 12 to stretch and contract on the hydraulic control box 4 is adjusted to control the hydraulic telescopic rod 12 to lift upwards, the support platform 11 is raised to contact the motor base 13, clamping the motor by the clamping mechanism 2, specifically, the control rod 41 of the control circuit for controlling the extension and contraction of the hydraulic cylinder 225 on the hydraulic control box 4 can be adjusted to extend the hydraulic cylinder 225 forwards, so that the hinge base 224 can be driven forward, and the second movable hinge 223 at both sides of the hinge base 224 drives the first movable hinge 221 to expand to both sides, so that the openings of the two movable jaws 21 are opened to surround the motor, then the hydraulic cylinder 225 is controlled to retract, the principle is opposite to the above, so that the two movable jaws 21 clamp and fix the motor; after the motor is clamped, the hydraulic telescopic rod 12 can be controlled to retract so as to lower the supporting platform 11, and then the control rod 41 of the control circuit on the hydraulic control box 4 for controlling the driving motor 32 (not shown in the figure) can be adjusted, the driving motor 32 (not shown in the figure) is used for driving the rotating shaft 31 to rotate, in this embodiment, the protective cover 33 is arranged outside the driving motor 32 (not shown in the figure) for protecting the driving motor 32 (not shown in the figure); in order to facilitate the operation of disassembling and overhauling the motor or replace a new motor, the motor can be rotated from the vertical direction to the horizontal direction, namely the motor is controlled to rotate for 90 degrees; after the maintenance or the replacement, the motor to be replaced can be sent to the motor placing platform at the high position again according to the method. It should be noted that, in the present invention, the telescopic hydraulic rod 12 disposed between the supporting platform 11 and the base 13 can control the telescopic height of the front and rear telescopic hydraulic rods 12 when being used on uneven ground, so as to keep the supporting platform 11 in a horizontal state all the time, which is more beneficial to fixing and clamping the motor, and more convenient to replace the motor.
In conclusion, the motor replacing device is low in cost, can flexibly clamp and fix the motor at a high position without manual intervention, can transport the motor to the ground for replacement, can complete the whole process by one person, is low in operation intensity, greatly reduces the operation cost, saves the labor force, and is safe in operation process. Most importantly, after the motor is conveyed to the ground, the heavy motor does not need to be manually disassembled from the supporting platform, and then disassembly and maintenance work are carried out, the motor can be directly rotated in a clamping and fixing state, so that maintenance personnel can directly maintain the motor on the replacing device, and can directly convey the motor to a high position after maintenance, thereby greatly reducing maintenance time and labor cost and improving maintenance efficiency.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The device for replacing the motor of the air cooler of the convertor station comprises a lifting platform and is characterized in that a clamping mechanism for clamping the motor to be replaced and a rotating mechanism for rotating the clamping mechanism are arranged above the lifting platform.
2. The converter station air cooler motor exchange device according to claim 1, characterized in that said clamping mechanism comprises two movable jaws arranged symmetrically and a driving mechanism for driving the openings of the two movable jaws to open and close.
3. The device for replacing the motor of the air cooler in the converter station according to claim 2, wherein the driving mechanism comprises a pair of fixed jaws, one of the fixed jaws is connected with one of the movable jaws through a first movable hinge, a hydraulic cylinder is further arranged between the pair of fixed jaws, a hinge base is arranged at an output shaft end of the hydraulic cylinder, and two sides of the hinge base are respectively hinged with the first movable hinge through second movable hinges.
4. The converter station air cooler motor exchange arrangement according to claim 3, characterized in that said rotating mechanism comprises a rotating shaft and a driving motor, the output end of said rotating shaft being connected to a hydraulic cylinder.
5. The device for replacing a motor of an air cooler in a converter station according to claim 4, wherein a fixed seat is arranged above the lifting platform, the rotating shaft penetrates through the fixed seat and is fixedly connected with the hydraulic cylinder, and a hydraulic control pipeline is further arranged on the fixed seat.
6. The device for replacing a converter station air cooler motor according to claim 1, wherein the lifting platform comprises a base and a support platform disposed above the base, and the support platform is connected to the base through a plurality of hydraulic telescopic rods.
7. The converter station air cooler motor exchange arrangement according to claim 6, wherein said clamping mechanism and said rotation mechanism are both disposed on said support platform.
8. The converter station air cooler motor exchange arrangement of claim 6, further comprising a hydraulic control box disposed on said base.
9. The device for replacing a converter station air cooler motor according to claim 6, wherein a plurality of self-locking universal wheels are arranged at the bottom of the base, and a fixed handle is arranged at one side of the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010762612.XA CN111716087A (en) | 2020-07-31 | 2020-07-31 | Motor replacing device for air cooler of converter station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010762612.XA CN111716087A (en) | 2020-07-31 | 2020-07-31 | Motor replacing device for air cooler of converter station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111716087A true CN111716087A (en) | 2020-09-29 |
Family
ID=72574396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010762612.XA Pending CN111716087A (en) | 2020-07-31 | 2020-07-31 | Motor replacing device for air cooler of converter station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111716087A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112271883A (en) * | 2020-12-06 | 2021-01-26 | 龚爽 | High-power motor slip ring replacing device |
| CN112623216A (en) * | 2020-12-28 | 2021-04-09 | 大连大学 | Rescue aircraft for passenger plane in distress in air |
| CN112660379A (en) * | 2020-12-28 | 2021-04-16 | 大连大学 | Method for rescuing passenger plane in distress by using aircraft |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400750A (en) * | 2014-12-08 | 2015-03-11 | 国家电网公司 | Pipeline valve dismounting assistive tool and pipeline valve dismounting method |
| CN208027599U (en) * | 2017-12-06 | 2018-10-30 | 叶明利 | A kind of liftable roll-over stand for dismounting engine |
| CN109531606A (en) * | 2018-11-27 | 2019-03-29 | 山东大学 | A kind of electro-hydraulic pair is driven direct-push manipulators and working method |
| CN109849029A (en) * | 2018-11-29 | 2019-06-07 | 安徽康乐机械科技有限公司 | A kind of hydraulic efficiency manipulator |
| CN110239277A (en) * | 2019-05-14 | 2019-09-17 | 西安理工大学 | A kind of band tyre assembly system based on cylindrical-coordinate system |
| CN110293508A (en) * | 2019-08-02 | 2019-10-01 | 广东电网有限责任公司 | A kind of switch cabinet current transformer more changing device |
| CN210973744U (en) * | 2019-09-27 | 2020-07-10 | 谷建一 | Movable mounting platform capable of overturning at full angle |
-
2020
- 2020-07-31 CN CN202010762612.XA patent/CN111716087A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400750A (en) * | 2014-12-08 | 2015-03-11 | 国家电网公司 | Pipeline valve dismounting assistive tool and pipeline valve dismounting method |
| CN208027599U (en) * | 2017-12-06 | 2018-10-30 | 叶明利 | A kind of liftable roll-over stand for dismounting engine |
| CN109531606A (en) * | 2018-11-27 | 2019-03-29 | 山东大学 | A kind of electro-hydraulic pair is driven direct-push manipulators and working method |
| CN109849029A (en) * | 2018-11-29 | 2019-06-07 | 安徽康乐机械科技有限公司 | A kind of hydraulic efficiency manipulator |
| CN110239277A (en) * | 2019-05-14 | 2019-09-17 | 西安理工大学 | A kind of band tyre assembly system based on cylindrical-coordinate system |
| CN110293508A (en) * | 2019-08-02 | 2019-10-01 | 广东电网有限责任公司 | A kind of switch cabinet current transformer more changing device |
| CN210973744U (en) * | 2019-09-27 | 2020-07-10 | 谷建一 | Movable mounting platform capable of overturning at full angle |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112271883A (en) * | 2020-12-06 | 2021-01-26 | 龚爽 | High-power motor slip ring replacing device |
| CN112623216A (en) * | 2020-12-28 | 2021-04-09 | 大连大学 | Rescue aircraft for passenger plane in distress in air |
| CN112660379A (en) * | 2020-12-28 | 2021-04-16 | 大连大学 | Method for rescuing passenger plane in distress by using aircraft |
| CN112660379B (en) * | 2020-12-28 | 2023-04-07 | 大连大学 | Method for rescuing passenger plane in distress by using aircraft |
| CN112623216B (en) * | 2020-12-28 | 2023-04-07 | 大连大学 | Rescue aircraft for passenger plane in distress in air |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111716087A (en) | Motor replacing device for air cooler of converter station | |
| CN110834315B (en) | New forms of energy motor stator shrink fit assembly robot | |
| CN110182700B (en) | GIS metal tank body disassembling tool | |
| CN108100944A (en) | Pipeline wrecking truck and pipeline grabbing device | |
| CN207668878U (en) | A kind of efficient mechanical repair skid mounted equipment | |
| CN209999126U (en) | airplane engine non-dead-angle overhaul workbench | |
| CN212887611U (en) | Tray carrying manipulator | |
| CN215699038U (en) | Speed reducer frame welding device | |
| CN212945225U (en) | Forge piece feeding and discharging grabbing manipulator | |
| CN111908370B (en) | Cantilever type liftable installation maintenance mechanism | |
| CN209364610U (en) | A kind of manipulator | |
| CN205702917U (en) | A kind of grabbing workpiece automation equipment | |
| CN213261673U (en) | Digital composite printing machine capable of quickly replacing transfer printing marks | |
| CN110625636A (en) | Clamping jaw convenient to disassemble and assemble for industrial robot | |
| CN214989722U (en) | Axle box spring lifting device | |
| CN216786215U (en) | Clamping device for gear quenching | |
| CN214030783U (en) | Engine flywheel handling device | |
| CN217992413U (en) | Tool for replacing torsion spring on looping car | |
| CN216583915U (en) | Steel construction is with frame of lifting by crane of centre gripping of being convenient for | |
| CN211249233U (en) | Machining fixing device | |
| CN220741050U (en) | Be used for boiler to overhaul maintenance equipment | |
| CN220056194U (en) | Universal tool for replacing vacuum steel wire mesh | |
| CN220999024U (en) | Material loading and unloading vehicle | |
| CN211136158U (en) | Tear jar machine positioner open | |
| CN214002737U (en) | Lifting type cold-chain logistics cold insulation box |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200929 |