CN112678419A - Can realize equipment that engine cylinder lid was transported - Google Patents
Can realize equipment that engine cylinder lid was transported Download PDFInfo
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- CN112678419A CN112678419A CN202011412809.7A CN202011412809A CN112678419A CN 112678419 A CN112678419 A CN 112678419A CN 202011412809 A CN202011412809 A CN 202011412809A CN 112678419 A CN112678419 A CN 112678419A
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- engine cylinder
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Abstract
The invention relates to equipment capable of realizing the transfer of an engine cylinder cover, which comprises a frame body, wherein a plurality of straight rods are arranged on the frame body in parallel, and a fixed roller way and a moving roller way are sleeved on the outer walls of the straight rods; according to the invention, the hydraulic cylinder pushes the moving roller way to slide on the straight rod, so that when the moving roller way is spliced with the fixed roller way, the moving roller way and the fixed roller way form a single roller way to synchronously operate, and the single roller way is used for transporting large-size engine cylinder covers; when the movable roller way is separated from the fixed roller way and the driven power wheel disc is spliced with the power gear, the fixed roller way and the movable roller way form double roller ways to move in the same direction and are used for the same-direction transportation of the small-volume engine cylinder cover; when the movable roller way drives the power wheel disc to be inserted with the output gear sleeve of the planetary gear set, and the power gear is separated from the power wheel disc and is inserted with the output gear of the planetary gear set, the movable roller way and the power roller way form double-roller way reverse motion and are used for simultaneously feeding and discharging the engine cylinder cover.
Description
Technical Field
The invention relates to the technical field of engine cylinder cover processing, in particular to equipment capable of realizing transfer of an engine cylinder cover.
Background
The engine cylinder cover is one of the most critical parts in the engine, the precision requirement is high, the processing technology is complex, the processing quality directly influences the overall performance and quality of the engine, therefore, the processing of the engine cylinder cover is particularly important, the processing of the valve seat ring and the guide pipe hole at the key part is more important, and the existing engine cylinder cover is usually transferred and connected among equipment in each processing step by adopting a roller type conveying belt in the processing process.
The existing roller type conveying belt can only carry out the transportation of a single roller way at the same time, and the single-roller way single-directional transportation mode is single, so that the practicability is poor.
Disclosure of Invention
The invention provides equipment capable of realizing the transfer of an engine cylinder cover, aiming at meeting the requirements of multi-roller way and multi-direction transportation of a pair of roller type conveyer belt.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
the equipment capable of achieving engine cylinder cover transfer comprises a frame body, wherein a plurality of straight rods are installed on the frame body in parallel, a fixed roller way and a moving roller way are sleeved on the outer wall of each straight rod, one side, close to the frame body, of the fixed roller way is connected to one end of a double-end motor through chain transmission, the moving roller way moves close to or away from the fixed roller way along the straight rods under the action of a hydraulic cylinder, and the moving roller way is close to the fixed roller way and is used for synchronous operation through insertion of first conical blocks on the end face; the moving roller way moves along the direction far away from the fixed roller way, and a power wheel disc in transmission connection with the other end face is fixedly inserted with a power gear which slides on an output shaft at the other end of the double-head motor; the movable roller way moves to the other side of the frame body along the direction far away from the fixed roller way, one side of the power gear is separated from the power wheel disc, the other side of the power gear is inserted into an input gear of the planetary gear set, and the power wheel disc is inserted into an output gear sleeve of the planetary gear set.
The outer wall cover of removal roll table is equipped with the bearing housing, and the equal fixedly connected with of lower extreme of a plurality of this bearing housing links the board, the side fixedly connected with of linking the board is installed the pneumatic cylinder of support body medial surface.
And three first conical blocks are arranged on one end face of the moving roller way at equal intervals and are inserted into first slots on the end face of the fixed roller way.
The other side of the moving roller way is connected with the power wheel disc which is sleeved on the output shaft at the other end of the double-head motor through chain transmission, one side of the power wheel disc is provided with a flywheel for being meshed with the chain for transmission, and the other side of the power wheel disc is provided with a connecting disc which is respectively in plug-in fit with the power gear and the output gear sleeve of the planetary gear set.
The inner wall of the power gear is provided with a sliding foot which slides in a sliding groove in the outer wall of the output shaft of the double-head motor, a spring used for pushing the power gear to move and reset is arranged in the sliding groove, one side end face of the power gear is provided with a second conical block, the second conical block is inserted into a second slot in the end face of the connecting disc, the other side end face of the power gear is provided with a third conical block, and the third conical block is inserted into a third slot in the end face of the input gear.
Planetary gear set the input gear passes through the bearing housing and establishes on the output shaft of the double-end motor other end, the input gear encircles the three transfer gear that sets up through outside equidistance and is connected with the output gear cover meshing transmission in the outside mutually, the outer wall of output gear cover is provided with the fourth slot, this fourth slot with the cooperation of pegging graft mutually of the fourth taper block of linking up the dish terminal surface.
It is used for with to join in marriage the inner wall equidistance of dish the power gear is followed divided lever spare on the power wheel dish, what this lever spare included in gliding first pole in the fourth cone block the one end of first pole slides in the bar groove of intermediate lamella through the pivot, drives the intermediate lamella rotates with the axis of rotation, and the other end of this intermediate lamella passes through the cooperation of bar groove and pivot and drives the second pole and slide and stretch out and draw back, first pole with the second pole all by horizontal slip is injectd to the spacing groove in joining in the dish, and the front end of second pole is provided with the ball.
The invention has the beneficial effects that:
according to the invention, the hydraulic cylinder pushes the moving roller way to slide on the straight rod, so that when the moving roller way is spliced with the fixed roller way, the moving roller way and the fixed roller way form a single roller way to synchronously operate, and the single roller way is used for transporting large-size engine cylinder covers; when the movable roller way is separated from the fixed roller way and the driven power wheel disc is spliced with the power gear, the fixed roller way and the movable roller way form double roller ways to move in the same direction and are used for the same-direction transportation of the small-volume engine cylinder cover; when the movable roller way drives the power wheel disc to be inserted with the output gear sleeve of the planetary gear set, and the power gear is separated from the power wheel disc and is inserted with the output gear of the planetary gear set, the movable roller way and the power roller way form double-roller way reverse motion for simultaneously feeding and discharging the engine cylinder cover, and the arrangement of various forms is used for transferring the engine cylinder cover under different conditions.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is an overall perspective view of the present invention;
FIG. 2 is a first general cross-sectional view of the present invention;
FIG. 3 is a second schematic overall cross-sectional view of the present invention;
FIG. 4 is an enlarged view of a portion A of FIG. 3;
FIG. 5 is an enlarged view of a portion B of FIG. 4;
FIG. 6 is a schematic illustration of the planetary gear set of the present invention.
In the figure: 1. a frame body; 2. a straight rod; 3. fixing the roller way; 31. a first slot; 4. moving the roller way; 41. a first cone block; 5. a hydraulic cylinder; 51. a bearing housing; 52. connecting plates; 6. a double-headed motor; 61. an output shaft; 62. a chute; 63. a spring; 64. a chain; 7. a power wheel disc; 71. a flywheel; 72. a splice tray; 721. a second slot; 722. a fourth cone block; 73. a lever member; 731. a first lever; 732. a middle plate; 733. a second lever; 734. a ball bearing; 8. a power gear; 81. a second taper block; 82. a third cone block; 83. a sliding foot; 9. a planetary gear set; 91. an input gear; 911. a third slot; 92. a transfer gear; 93. an output gear sleeve; 931. and a fourth slot.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be described more clearly and more completely with reference to the drawings in the following embodiments, and it is understood that the described embodiments are only a part of the present invention, rather than all of the present invention, and based on the embodiments, other embodiments obtained by those skilled in the art without inventive exercise are within the protection scope of the present invention.
As shown in fig. 1 to 6, an apparatus capable of realizing engine cylinder head transfer comprises a frame body 1, wherein a plurality of straight rods 2 are arranged on the frame body 1 in parallel, two parts, namely a fixed roller way 3 and a movable roller way 4, are sleeved on the outer walls of the straight rods 2, one side, close to the frame body 1, of the fixed roller way 3 is in transmission connection with one end of a double-end motor 6 through a chain 64, the movable roller way 4 moves close to or away from the fixed roller way 3 along the straight rods 2 under the action of a hydraulic cylinder 5, and the movable roller way 4 is close to the fixed roller way 3 and is inserted and connected through first conical blocks 41; the movable roller way 4 moves along the fixed roller way 3, a power wheel disc 7 in transmission connection with the other end face is fixedly inserted with a power gear 8, and the power gear 8 slides on an output shaft 61 at the other end of the double-head motor 6; the movable roller way 4 moves to the other side of the frame body 1 along the direction far away from the fixed roller way 3, one side of the power gear 8 is separated from the power wheel disc 7, the other side of the power wheel disc is inserted into the input gear 91 of the planetary gear set 9, and the power wheel disc 7 is inserted into the output gear sleeve 93 of the planetary gear set 9.
The outer wall cover of travelling table 4 is equipped with bearing housing 51, and the equal fixedly connected with of lower extreme of a plurality of this bearing housing 51 links board 52, links the side fixedly connected with of board 52 and installs the pneumatic cylinder 5 at 1 medial surface of support body.
Three first conical blocks 41 are equidistantly arranged on one end face of the movable roller way 4, and the first conical blocks 41 are inserted into the first slots 31 on the end face of the fixed roller way 3. The first conical block 41, the second conical block 81, the third conical block 82 and the fourth conical block 722 are all arranged in an annular shape at equal intervals, so that the parts between the first conical block and the second conical block can be conveniently connected and matched, and the parts can be driven to rotate mutually. All set up the guiding groove that extends out between first slot 31, second slot 721, third slot 911 and the fourth slot 931, when the front end of awl piece is inserted in the guiding groove, drop the slotted hole along the guiding groove automatically when rotating and realize mutual locking, conveniently peg graft and avoid unable grafting cooperation.
The other side of the moving roller way 4 is connected with a power wheel disc 7 which is sleeved on an output shaft 61 at the other end of the double-head motor 6 through a chain 64 in a transmission manner, one side of the power wheel disc 7 is provided with a flywheel 71 for being meshed with the chain 64 for transmission, and the other side of the power wheel disc 7 is provided with an engaging disc 72 which is respectively matched with an output gear sleeve 93 of the power gear 8 and the planetary gear set 9 in an inserted manner. The moving roller way 4 drives the power wheel disc 7 below to slide on the output shaft 61 through the chain 64, so as to provide a foundation for subsequent operation.
The inner wall of the power gear 8 is provided with a sliding foot 83, the sliding foot 83 slides in a sliding groove 62 on the outer wall of the output shaft 61 of the double-head motor 6, a spring 63 for pushing the power gear 8 to move and reset is arranged in the sliding groove 62, one side end face of the power gear 8 is provided with a second taper block 81, the second taper block 81 is inserted into a second insertion groove 721 on the end face of the connecting disc 72, the other side end face of the power gear 8 is provided with a third taper block 82, and the third taper block 82 is inserted into a third insertion groove 911 on the end face of the input gear 91. The sliding foot 83 of the power gear 8 is arranged to enable the output shaft 61 to drive the power gear 8 to rotate when rotating, the rotation of the power gear 8 is used as the rotation power of the movable roller way 4, and the spring 63 is arranged to enable the power gear 8 to automatically return and separate from the planetary gear set 9 when the hydraulic cylinder 5 extends to push the movable roller way 4 to be combined with the fixed roller way 3.
An input gear 91 of the planetary gear set 9 is arranged on an output shaft 61 at the other end of the double-head motor 6 through a bearing sleeve 51, the input gear 91 is in meshing transmission connection with an output gear sleeve 93 at the outer side through three transfer gears 92 arranged at equal intervals around the outer side, a fourth insertion groove 931 is arranged on the outer wall of the output gear sleeve 93, and the fourth insertion groove 931 is in insertion fit with a fourth conical block 722 on the end face of the connecting disc 72. The planetary gear set 9 is arranged to change the rotation in the same direction as the fixed roller way 3 into the rotation in the opposite direction, so that the rotation speed is the same and the directions of the two are opposite, and the planetary gear set is used for synchronous feeding and discharging.
Three groups of lever pieces 73 used for separating the power gear 8 from the power wheel disc 7 are arranged on the inner wall of the connecting disc 72 at equal intervals, the lever pieces 73 comprise first rods 731 sliding in the fourth conical blocks 722, one ends of the first rods 731 slide in strip-shaped grooves of the middle plate 732 through rotating shafts to drive the middle plate 732 to rotate through rotating shafts, the other ends of the middle plate 732 drive the second rods 733 to slide and stretch through matching of the strip-shaped grooves and the rotating shafts, the first rods 731 and the second rods 733 are limited by limiting grooves in the connecting disc 72 to slide horizontally, and balls 734 are arranged at the front ends of the second rods 733. When the power gear 8 is spliced with the connecting disc 72 through the second taper block 81, the second rod 733 is extruded, so that the second rod 733 horizontally contracts along the limiting groove, the second rod 733 drives the lower end of the middle plate 732 to rotate inwards, and the upper end of the middle plate 732 rotates outwards at the same time, so that the first rod 731 is driven to extend outwards along the limiting groove and protrude out of the fourth taper block 722; when the connecting disc 72 of the power wheel disc 7 is inserted into the output gear sleeve 93 through the fourth taper block 722, the first rod 731 is pressed and recovered, the second rod 733 is pushed to move outwards through the middle plate 732 in the opposite direction, the second rod 733 pushes the power gear 8 to further compress the spring 63, and meanwhile, the power gear 8 is pushed to the side surface of the input gear 91 on the other side, so that the power gear 8 and the input gear 91 are inserted and fixed through the third taper block 82, and the reverse rotation is realized. The balls 734 at the front end of the second rod 733 are arranged to reduce friction with the power gear 8 when the power gear rotates, avoid interference between the power gear and the power gear, and prolong the service life.
When the single roller way operates synchronously: the connecting rod is pushed by extending the hydraulic cylinder 5, the connecting rod drives the whole movable roller way 4 to slide to one side of the fixed roller way 3 through the bearing sleeve 51, the first taper block 41 of the movable roller way 4 is inserted into the first slot 31 of the fixed roller way 3, the combination of the fixed roller way 3 and the movable roller way 4 is realized, the double-end motor 6 drives the fixed roller way 3 to rotate through the chain 64, the fixed roller way 3 drives the movable roller way 4 to rotate synchronously along with the movement to realize the transfer purpose, the fixed roller way 3 is spliced with the movable roller way 4, and the connecting rod is used for completing the transfer of a large-size automobile engine cylinder cover.
When the double roller ways rotate in the same direction: the connecting rod is driven to be recovered through contraction of the hydraulic cylinder 5, the connecting rod drives the moving roller way 4 to be far away from the fixed roller way 3 through the bearing sleeve 51 to move until the moving roller way 4 moves and is attached to the power gear 8 along the output shaft 61 through the power wheel disc 7 driven by the chain 64, the connecting disc 72 of the power wheel disc 7 is connected with the second taper block 81 on the end face of the power gear 8 in a plugging mode to realize fixation, the double-end motor 6 is started, one end of the double-end motor drives the fixed roller way 3 to rotate through the chain 64, the other end of the double-end motor drives the power gear 8 through the output shaft 61, the power gear 8 drives the power wheel disc 7, the power wheel disc 7 drives the moving roller way 4 to rotate through the chain 64, double-roller way movement of the fixed roller way 3 and.
When the double roller way rotates reversely: the hydraulic cylinder 5 is contracted to drive the connecting rod to be further recovered, the connecting rod drives the moving roller way 4 to move in the direction away from the fixed roller way 3 through the bearing sleeve 51, meanwhile, the power wheel disc 7 drives the power gear 8 to press the spring 63 to further move until the fourth conical block 722 on the connecting disc 72 on the power wheel disc 7 is inserted into the fourth slot 931 on the end surface of the output fluted disc, meanwhile, the first rod 731 is extruded and contracted, the first rod 731 is contracted to drive the end of the middle rod to go deep, so that the other end of the middle rod moves outwards, the other end of the middle rod drives the second rod 733 to move outwards to push the power gear 8 matched with the plug-in connection away from the power wheel disc 7, the power gear 8 is pushed into the third conical block 82 on the other side to be inserted into the third slot 911 of the input gear 91, the double-head motor 6 is started, one end of the double-head motor 6 drives the fixed roller way 3 to, the other end drives a power gear 8 through an output shaft 61, the power gear 8 drives an input gear 91, the input gear 91 drives a transfer gear 92, the transfer gear 92 drives an output gear sleeve 93 to rotate reversely, the output gear sleeve 93 drives a power wheel disc 7 to rotate reversely, the power wheel disc 7 drives a moving roller way 4 through a chain 64 to rotate reversely, the double roller ways of the fixed roller way 3 and the moving roller way 4 rotate in opposite directions, and the double roller ways are used for carrying out reverse synchronous transportation on engine cylinder covers with small sizes and simultaneously feeding and discharging.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides an equipment that can realize that engine cylinder lid transports which characterized in that: the automatic feeding device comprises a frame body (1), wherein a plurality of straight rods (2) are arranged on the frame body (1) in parallel, a fixed roller way (3) and a moving roller way (4) are sleeved on the outer wall of each straight rod (2), one side, close to the frame body (1), of each fixed roller way (3) is connected to one end of a double-end motor (6) in a transmission mode through a chain (64), each moving roller way (4) moves close to or away from the corresponding fixed roller way (3) along the corresponding straight rod (2) under the action of a hydraulic cylinder (5), and each moving roller way (4) is close to the corresponding fixed roller way (3) and is inserted and connected through a first conical block (41) of the end face to run synchronously; the moving roller way (4) moves along the fixed roller way (3) and a power wheel disc (7) which is in transmission connection with the other end face is fixedly inserted with a power gear (8), and the power gear (8) slides on an output shaft (61) at the other end of the double-head motor (6); the movable roller way (4) moves to the other side of the frame body (1) along the direction far away from the fixed roller way (3), one side of the power gear (8) is separated from the power wheel disc (7), the other side of the power gear is inserted into an input gear (91) of the planetary gear set (9), and the power wheel disc (7) is inserted into an output gear sleeve (93) of the planetary gear set (9).
2. The device capable of achieving engine cylinder head transfer according to claim 1, is characterized in that: the outer wall cover of removal roll table (4) is equipped with bearing housing (51), and the equal fixedly connected with of lower extreme of a plurality of this bearing housing (51) links board (52), the side fixedly connected with of linking board (52) is installed pneumatic cylinder (5) of support body (1) medial surface.
3. The device capable of achieving engine cylinder head transfer according to claim 1, is characterized in that: three first conical blocks (41) are arranged on one end face of the movable roller way (4) at equal intervals, and the first conical blocks (41) are inserted into first slots (31) on the end face of the fixed roller way (3).
4. The device capable of achieving engine cylinder head transfer according to claim 1, is characterized in that: the opposite side of removal roll table (4) passes through chain (64) transmission connect in the cover is established gliding on double-end motor (6) other end output shaft (61) power rim plate (7), one side of power rim plate (7) set up to flywheel (71) be used for with chain (64) mesh transmission mutually, the opposite side set up to join in marriage for linking up dish (72) respectively with power gear (8) with the cooperation of pegging graft mutually in output tooth cover (93) of planetary gear set (9).
5. The device capable of achieving engine cylinder head transfer according to claim 4, is characterized in that: the inner wall of the power gear (8) is provided with a sliding foot (83), the sliding foot (83) slides in a sliding groove (62) in the outer wall of an output shaft (61) of the double-head motor (6), a spring (63) used for pushing the power gear (8) to move and reset is arranged in the sliding groove (62), one side end face of the power gear (8) is provided with a second taper block (81), the second taper block (81) is inserted into a second inserting groove (721) in the end face of the connecting disc (72), the other side end face of the power gear (8) is provided with a third taper block (82), and the third taper block (82) is inserted into a third inserting groove (911) in the end face of the input gear (91).
6. The device capable of achieving engine cylinder head transfer according to claim 5, is characterized in that: planetary gear set (9) input gear (91) are established through the bearing housing on output shaft (61) of double-end motor (6) other end, input gear (91) encircle output tooth cover (93) the transmission of three transfer gear (92) and the outside that set up through the outside equidistance and are connected, the outer wall of output tooth cover (93) is provided with fourth slot (931), this fourth slot (931) with join in marriage mutually in pegging graft of fourth taper block (722) of dish (72) terminal surface.
7. The device for realizing the transfer of the engine cylinder cover is characterized in that, three groups of lever pieces (73) used for separating the power gear (8) from the power wheel disc (7) are arranged on the inner wall of the connecting disc (72) at equal intervals, the lever member (73) comprises a first rod (731) sliding in said fourth cone (722), one end of the first rod (731) slides in the strip-shaped groove of the middle plate (732) through a rotating shaft to drive the middle plate (732) to rotate through the rotating shaft, the other end of the middle plate (732) drives the second rod (733) to slide and stretch through the matching of the strip-shaped groove and the rotating shaft, the first rod (731) and the second rod (733) are limited by a limiting groove (723) in the connecting disc (72) to slide horizontally, and a ball (734) is arranged at the front end of the second rod (733).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011412809.7A CN112678419B (en) | 2020-12-03 | 2020-12-03 | Can realize equipment that engine cylinder lid was transported |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011412809.7A CN112678419B (en) | 2020-12-03 | 2020-12-03 | Can realize equipment that engine cylinder lid was transported |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112678419A true CN112678419A (en) | 2021-04-20 |
| CN112678419B CN112678419B (en) | 2022-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011412809.7A Active CN112678419B (en) | 2020-12-03 | 2020-12-03 | Can realize equipment that engine cylinder lid was transported |
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| CN (1) | CN112678419B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023142327A1 (en) * | 2022-01-26 | 2023-08-03 | 北京国承万通信息科技有限公司 | Roller device, roller apparatus, and method for using roller device |
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| CN102191663A (en) * | 2010-03-08 | 2011-09-21 | 常州至精精机有限公司 | Linkage clutch of washing machine |
| CN107600952A (en) * | 2017-09-26 | 2018-01-19 | 杨有锁 | The conveying carrier roller of full-automatic variable-width |
| CN209367051U (en) * | 2018-12-22 | 2019-09-10 | 大通物流(深圳)有限公司 | A kind of logistics packaging process Transmission system |
| CN111086825A (en) * | 2019-11-08 | 2020-05-01 | 安徽省无为煤矿机械制造有限公司 | Belt conveying equipment capable of being combined and disassembled |
| CN211034064U (en) * | 2020-03-30 | 2020-07-17 | 海口力神咖啡饮品有限公司 | Reverse driving device of conveyer belt |
| CN211569057U (en) * | 2019-12-25 | 2020-09-25 | 成都鸿信木业有限公司 | Power roller table |
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2020
- 2020-12-03 CN CN202011412809.7A patent/CN112678419B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102191663A (en) * | 2010-03-08 | 2011-09-21 | 常州至精精机有限公司 | Linkage clutch of washing machine |
| CN107600952A (en) * | 2017-09-26 | 2018-01-19 | 杨有锁 | The conveying carrier roller of full-automatic variable-width |
| CN209367051U (en) * | 2018-12-22 | 2019-09-10 | 大通物流(深圳)有限公司 | A kind of logistics packaging process Transmission system |
| CN111086825A (en) * | 2019-11-08 | 2020-05-01 | 安徽省无为煤矿机械制造有限公司 | Belt conveying equipment capable of being combined and disassembled |
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| WO2023142327A1 (en) * | 2022-01-26 | 2023-08-03 | 北京国承万通信息科技有限公司 | Roller device, roller apparatus, and method for using roller device |
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| Publication number | Publication date |
|---|---|
| CN112678419B (en) | 2022-10-18 |
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