CN114636399A - New energy vehicle electronic water pump rotor axial clearance detection device and control method thereof - Google Patents
New energy vehicle electronic water pump rotor axial clearance detection device and control method thereof Download PDFInfo
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- CN114636399A CN114636399A CN202210533796.1A CN202210533796A CN114636399A CN 114636399 A CN114636399 A CN 114636399A CN 202210533796 A CN202210533796 A CN 202210533796A CN 114636399 A CN114636399 A CN 114636399A
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- displacement sensor
- jacking
- rotor shaft
- impeller
- magnetic
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/16—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring distance of clearance between spaced objects
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0088—Testing machines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a new energy vehicle electronic water pump rotor axial clearance detection device and a control method thereof, belonging to the technical field of electronic water pump rotor axial clearance detection equipment. The magnetic jacking assembly of the rotor shaft comprises a jacking frame, a top plate is arranged in the jacking frame, a magnetic jacking seat which is jacked by the magnetic force of the rotor shaft is arranged between the upper end of the top plate and the rotor shaft, and a magnetic ring which is clamped and embedded with the magnetic jacking seat is arranged on the magnetic jacking seat. The device has the advantages of simple structure, convenience in detection and high use efficiency. The problem that the impeller and the spacer sleeve are scrapped due to the fact that no gap exists or the gap is too large after the impeller and the spacer sleeve are assembled is solved. The magnetic principle is adopted to realize non-contact displacement sensing detection, so that the structural integrity of the rotor shaft is protected while the detection accuracy is ensured.
Description
Technical Field
The invention relates to the technical field of electronic water pump rotor axial clearance detection equipment, in particular to an electronic water pump rotor axial clearance detection device of a new energy vehicle and a control method thereof.
Background
When the engineering machinery runs, particularly the pump shaft of the submersible pump of the water pump machinery, such as a vertical axial flow pump, a long-axis axial flow pump and the like, can generate the situation of movement. The reasons for this can be basically divided into two cases: firstly, a gap exists between the bearing and the end cover, and the bearing is not fixed by the end face; secondly, the thrust bearing is abraded after long-term operation, and the bearing cannot support the pressure of the axial force. In addition, the normal rolling bearing also has play due to the axial play, but the play amount is different depending on the type of the pump body. Generally, the larger the pump, the greater the axial play of the pump.
The existing detection equipment adopts a cylinder clamping jaw to grab an impeller and lift or extract in an air suction manner, and gap size detection is carried out. But the air suction is easy to cause insufficient suction force and drop, so that the detection result is inaccurate.
Disclosure of Invention
The invention mainly solves the defects of high detection difficulty, complex structure and low use efficiency in the prior art, and provides the device for detecting the axial clearance of the electronic water pump rotor of the new energy vehicle and the control method thereof. The problem that the impeller and the spacer sleeve are scrapped due to the fact that no gap exists or the gap is too large after the impeller and the spacer sleeve are assembled is solved.
The technical problem of the invention is mainly solved by the following technical scheme:
the utility model provides a new forms of energy car electronic water pump rotor axial internal clearance detection device, includes rotor shaft magnetic force jacking subassembly, rotor shaft magnetic force jacking subassembly on be equipped with the rotor shaft, rotor shaft magnetic force jacking subassembly side be equipped with the movable displacement sensing detection subassembly that touches and connect of rotor shaft. The magnetic jacking assembly of the rotor shaft comprises a jacking frame, a top plate is arranged in the jacking frame, a magnetic jacking seat which is jacked by the magnetic force of the rotor shaft is arranged between the upper end of the top plate and the rotor shaft, and a magnetic ring which is clamped and embedded with the magnetic jacking seat is arranged on the magnetic jacking seat.
Preferably, the upper end of the jacking frame is provided with a pair of rotor shaft limiting blocks which are in sleeve joint with the rotor shaft for limiting and are fixedly connected with the jacking frame through bolts, the upper end of the top plate is provided with a pair of magnetic jacking seat limiting blocks which are in sleeve joint with the magnetic jacking seat for limiting and are fixedly connected with the top plate through bolts, the lower end of the top plate is provided with a mandril cylinder which is fixedly connected with the top plate in an inserted manner, and the side edge of the mandril cylinder is fixedly connected with the jacking frame through a clamp.
Preferably, the displacement sensing detection assembly comprises an isolation sleeve displacement sensor fixing seat, an impeller displacement sensor penetrating through the isolation sleeve displacement sensor fixing seat and connected with a rotor shaft in a crimping mode is arranged at the upper end of the isolation sleeve displacement sensor fixing seat, a lifting cylinder II is arranged between the impeller displacement sensor and the isolation sleeve displacement sensor fixing seat, an impeller displacement sensor fixing block connected and fixed with the impeller displacement sensor is arranged between the lifting cylinder II and the impeller displacement sensor, and an isolation sleeve displacement sensor penetrating through the isolation sleeve displacement sensor fixing seat and connected with the rotor shaft in a crimping mode is arranged on the side edge of the impeller displacement sensor.
Preferably, a displacement ejector rod connected and fixed with the impeller displacement sensor is arranged between the lower end of the impeller displacement sensor and the rotor shaft, and a plurality of spacing ejector rods which are distributed in an equidistant annular mode and are fixedly connected with the displacement sensor fixing seats through bolts are arranged on the periphery of the displacement ejector rod.
Preferably, the rear end of the fixed seat of the displacement sensor of the isolation sleeve is provided with a lifting cylinder I, the side end of the lifting cylinder I is provided with a sensing transverse moving cylinder which is connected with the lifting cylinder I in a sliding type inserting and embedding manner, and one side edge of the sensing transverse moving cylinder is provided with a detection support column which is fixedly connected with the sensing transverse moving cylinder in a hooping type inserting and embedding manner.
Preferably, the rotor shaft comprises an isolation sleeve, the isolation sleeve is provided with an impeller movably connected with the isolation sleeve in a nested manner, and an axial clearance is formed between the upper end of the isolation sleeve and the impeller.
A control method of an electronic water pump rotor axial clearance detection device of a new energy vehicle comprises the following operation steps:
the first step is as follows: the rotor shaft assembled by the impeller and the isolation sleeve is placed on a jacking rack of the rotor shaft magnetic jacking assembly, and the rotor shaft is transversely limited by a pair of rotor shaft limiting blocks.
The second step: the sensing transverse moving cylinder on the detection supporting column drives the fixed seat of the isolation sleeve displacement sensor to move above the rotor shaft, then the lifting cylinder I enables the limiting ejector rod at the lower end of the fixed seat of the isolation sleeve displacement sensor to descend to be in contact type crimping limiting with the upper end face of the isolation sleeve, at the moment, the isolation sleeve displacement sensor is in crimping with the upper end face of the isolation sleeve, and the numerical value generated by the isolation sleeve displacement sensor is X1.
The third step: and the lifting cylinder II drives the impeller displacement sensor on the impeller displacement sensor fixing block to move downwards, so that a displacement ejector rod at the lower end of the impeller displacement sensor is in pressure joint with the upper end face of the impeller, and the numerical value generated by the impeller displacement sensor is Y1.
The fourth step: the ejector rod cylinder stretches to enable the magnetic jacking seat on the top plate to repel the jacking isolation sleeve through magnetic force, when the isolation sleeve displacement sensor and the impeller displacement sensor both generate numerical value changes, the ejector rod cylinder stops jacking, the numerical value generated by the isolation sleeve displacement sensor is X2, and the numerical value generated by the impeller displacement sensor is Y2.
The fifth step: the clearance value = X2-X1- (Y2-Y1) of the axial play is obtained by the numerical difference of the impeller displacement sensor and the isolation sleeve displacement sensor.
Preferably, the magnetic jacking seat is provided with a magnetic ring which is repulsive to the isolation sleeve, so that the magnetic jacking seat and the isolation sleeve realize non-contact jacking.
Preferably, the distance between the limiting ejector rod at the lower end of the fixed seat of the spacing sleeve displacement sensor and the end face of the spacing sleeve is adjusted by the sensing transverse cylinder at the installation height of the detection support column.
The invention can achieve the following effects:
the invention provides a new energy vehicle electronic water pump rotor axial clearance detection device and a control method thereof. The problem that the impeller and the spacer sleeve are scrapped due to the fact that no gap exists or the gap is too large after the impeller and the spacer sleeve are assembled is solved. The magnetic principle is adopted to realize non-contact displacement sensing detection, so that the structural integrity of the rotor shaft is protected while the detection accuracy is ensured.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of the displacement sensing and detecting assembly of the present invention.
FIG. 3 is a schematic structural view of a rotor shaft magnetic jacking assembly of the present invention.
FIG. 4 is a cross-sectional view of the rotor shaft magnetic jacking assembly of the present invention.
Fig. 5 is a schematic view of the structure of the rotor shaft of the present invention.
Fig. 6 is a structural sectional view of a rotor shaft of the present invention.
In the figure: displacement sensing detection subassembly 1, rotor shaft 2, rotor shaft magnetic force jacking subassembly 3, sensing sideslip cylinder 4, detect support column 5, lift cylinder I6, lift cylinder II 7, impeller displacement sensor 8, keep apart cover displacement sensor 9, impeller displacement sensor fixed block 10, spacing ejector pin 11, displacement ejector pin 12, keep apart cover displacement sensor fixing base 13, jacking frame 14, rotor shaft stopper 15, magnetic force jacking seat 16, magnetic ring 17, magnetic force jacking seat stopper 18, roof 19, ejector pin cylinder 20, the separation sleeve 21, impeller 22, axial internal clearance 23.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example (b): as shown in fig. 1-6, the new energy vehicle electronic water pump rotor axial clearance detection device comprises a rotor shaft magnetic jacking assembly 3, a rotor shaft 2 is arranged on the rotor shaft magnetic jacking assembly 3, the rotor shaft 2 comprises an isolation sleeve 21, an impeller 22 movably connected with the isolation sleeve 21 in a nested manner is arranged on the isolation sleeve 21, and an axial clearance 23 is arranged between the upper end of the isolation sleeve 21 and the impeller 22. The side of the rotor shaft magnetic jacking component 3 is provided with a displacement sensing detection component 1 which is movably contacted with the rotor shaft 2.
Displacement sensing detection subassembly 1 includes separation sleeve displacement sensor fixing base 13, and separation sleeve displacement sensor fixing base 13 rear end is equipped with lift cylinder I6, and lift cylinder I6 side is equipped with and inserts the sensing sideslip cylinder 4 of inlaying the connection with I6 looks slidingtype of lift cylinder, and 4 sides of sensing sideslip cylinder are equipped with and hold hoop formula inlay card with sensing sideslip cylinder 4 and are connected fixed detection support column 5. Isolation sleeve displacement sensor fixing base 13 upper end is equipped with the impeller displacement sensor 8 that runs through isolation sleeve displacement sensor fixing base 13 and 2 looks crimps of rotor shaft, is equipped with between 8 lower extremes of impeller displacement sensor and rotor shaft 2 to be connected fixed displacement ejector pin 12 with impeller displacement sensor 8, and displacement ejector pin 12 periphery is equipped with 4 and is equidistant annular distribution and isolation sleeve displacement sensor fixing base 13 looks screwed connection fixed spacing ejector pin 11. Be equipped with lift cylinder II 7 between impeller displacement sensor 8 and isolation sleeve displacement sensor fixing base 13, be equipped with between lift cylinder II 7 and impeller displacement sensor 8 and be connected the impeller displacement sensor fixed block 10 of fixing with impeller displacement sensor 8, impeller displacement sensor 8 side is equipped with the isolation sleeve displacement sensor 9 that runs through isolation sleeve displacement sensor fixing base 13 and rotor shaft 2 looks crimping.
The rotor shaft magnetic jacking assembly 3 comprises a jacking frame 14, a top plate 19 is arranged in the jacking frame 14, a magnetic jacking seat 16 which is magnetically jacked with the rotor shaft 2 is arranged between the upper end of the top plate 19 and the rotor shaft 2, and a magnetic ring 17 which is clamped and sleeved with the magnetic jacking seat 16 is arranged on the magnetic jacking seat 16. The upper end of the jacking rack 14 is provided with a pair of rotor shaft limiting blocks 15 which are sleeved with the rotor shaft 2 for limiting and are fixedly connected with the jacking rack 14 through bolts, the upper end of the top plate 19 is provided with a pair of magnetic jacking seat limiting blocks 18 which are sleeved with the magnetic jacking seat 16 for limiting and are fixedly connected with the top plate 19 through bolts, the lower end of the top plate 19 is provided with a push rod cylinder 20 which is fixedly connected with the top plate 19 in an inserted manner, and the side edge of the push rod cylinder 20 is fixedly connected with the jacking rack 14 in a clamping manner.
A control method of an electronic water pump rotor axial clearance detection device of a new energy vehicle comprises the following operation steps:
the first step is as follows: the rotor shaft 2 assembled by the impeller 22 and the isolation sleeve 21 is placed on the jacking machine frame 14 of the rotor shaft magnetic jacking assembly 3, and the rotor shaft 2 is transversely limited by a pair of rotor shaft limiting blocks 15.
The second step is that: the sensing transverse moving cylinder 4 on the detection supporting column 5 drives the isolation sleeve displacement sensor fixing seat 13 to move to the position above the rotor shaft 2, then the lifting cylinder I6 enables the limiting ejector rod 11 at the lower end of the isolation sleeve displacement sensor fixing seat 13 to descend to be in contact type crimping limit with the upper end face of the isolation sleeve 21, and the distance between the limiting ejector rod 11 at the lower end of the isolation sleeve displacement sensor fixing seat 13 and the end face of the isolation sleeve 21 is adjusted through the mounting height of the sensing transverse moving cylinder 4 on the detection supporting column 5. At this time, the spacer sleeve displacement sensor 9 is in press-contact with the upper end face of the spacer sleeve 21, and the value generated by the spacer sleeve displacement sensor 9 is X1.
The third step: the lifting cylinder II 7 drives the impeller displacement sensor 8 on the impeller displacement sensor fixing block 10 to move downwards, so that the displacement ejector rod 12 at the lower end of the impeller displacement sensor 8 is in pressure joint with the upper end face of the impeller 22, and the value generated by the impeller displacement sensor 8 is Y1.
The fourth step: the ejector rod cylinder 20 stretches to enable the magnetic jacking seat 16 on the top plate 19 to jack the isolation sleeve 21 through magnetic repulsion, and the magnetic ring 17 which is mutually repulsive with the isolation sleeve 21 is arranged on the magnetic jacking seat 16, so that the magnetic jacking seat 16 and the isolation sleeve 21 are enabled to realize non-contact jacking. When the numerical values of the isolation sleeve displacement sensor 9 and the impeller displacement sensor 8 are changed, the push rod cylinder 20 stops jacking, the numerical value generated by the isolation sleeve displacement sensor 9 is X2, and the numerical value generated by the impeller displacement sensor 8 is Y2.
The fifth step: the clearance value = X2-X1- (Y2-Y1) of the axial play 23 is obtained by the value difference of the impeller displacement sensor 8 and the isolation sleeve displacement sensor 9.
In summary, the device for detecting the axial clearance of the rotor of the electronic water pump of the new energy vehicle and the control method thereof have the advantages of simple structure, convenience in detection and high use efficiency. The problem that the impeller and the spacer sleeve are scrapped due to the fact that no gap exists or the gap is too large after the impeller and the spacer sleeve are assembled is solved. The magnetic principle is adopted to realize non-contact displacement sensing detection, so that the structural integrity of the rotor shaft is protected while the detection accuracy is ensured.
The above description is only an embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any changes or modifications within the scope of the present invention by those skilled in the art are covered by the present invention.
Claims (9)
1. The utility model provides a new forms of energy car electronic water pump rotor axial internal clearance detection device which characterized in that: the device comprises a rotor shaft magnetic jacking assembly (3), wherein a rotor shaft (2) is arranged on the rotor shaft magnetic jacking assembly (3), and a displacement sensing detection assembly (1) in movable contact with the rotor shaft (2) is arranged on the side edge of the rotor shaft magnetic jacking assembly (3); rotor shaft magnetic force jacking subassembly (3) include jacking frame (14), jacking frame (14) in be equipped with roof (19), roof (19) upper end and rotor shaft (2) between be equipped with magnetic force jacking seat (16) of rotor shaft (2) looks magnetic force jacking, magnetic force jacking seat (16) on be equipped with magnetic force jacking seat (16) looks inlay card formula magnetic ring (17) that cup joint.
2. The new energy vehicle electronic water pump rotor axial clearance detection device of claim 1, characterized in that: jacking frame (14) upper end be equipped with a pair ofly cup joint spacing and with jacking frame (14) looks bolted connection fixed rotor shaft stopper (15) with rotor shaft (2) mutually, roof (19) upper end be equipped with a pair ofly cup joint spacing and with roof (19) looks bolted connection fixed magnetic force jacking seat stopper (18) mutually with magnetic force jacking seat (16), roof (19) lower extreme be equipped with roof (19) fixed ejector pin cylinder (20) of pegging graft mutually, ejector pin cylinder (20) side be connected fixedly with jacking frame (14) looks clamp formula.
3. The new energy vehicle electronic water pump rotor axial clearance detection device of claim 1, characterized in that: displacement sensing test subassembly (1) include separation sleeve displacement sensor fixing base (13), separation sleeve displacement sensor fixing base (13) upper end be equipped with impeller displacement sensor (8) that run through separation sleeve displacement sensor fixing base (13) and rotor shaft (2) looks crimping, impeller displacement sensor (8) and separation sleeve displacement sensor fixing base (13) within a definite time be equipped with lift cylinder II (7), lift cylinder II (7) and impeller displacement sensor (8) within a definite time be equipped with and be connected fixed impeller displacement sensor fixed block (10) with impeller displacement sensor (8), impeller displacement sensor (8) side be equipped with and run through separation sleeve displacement sensor fixing base (13) and rotor shaft (2) looks crimping separation sleeve displacement sensor (9).
4. The new energy vehicle electronic water pump rotor axial clearance detection device of claim 3, characterized in that: the impeller displacement sensor (8) lower extreme and rotor shaft (2) between be equipped with and be connected fixed displacement ejector pin (12) with impeller displacement sensor (8), displacement ejector pin (12) periphery be equipped with a plurality of be equidistant annular distribution and keep apart cover displacement sensor fixing base (13) looks screwed connection fixed spacing ejector pin (11).
5. The new energy vehicle electronic water pump rotor axial clearance detection device of claim 3, characterized in that: isolation sleeve displacement sensor fixing base (13) rear end be equipped with lift cylinder I (6), lift cylinder I (6) side be equipped with lift cylinder I (6) looks slidingtype insert inlay the sensing sideslip cylinder (4) of being connected, sensing sideslip cylinder (4) one side be equipped with sensing sideslip cylinder (4) the hooping formula inlay card of phase and be connected fixed detection support column (5).
6. The new energy vehicle electronic water pump rotor axial clearance detection device of claim 1, characterized in that: rotor shaft (2) including spacer sleeve (21), spacer sleeve (21) on be equipped with spacer sleeve (21) movable nested connection's mutually impeller (22), spacer sleeve (21) upper end and impeller (22) between be equipped with axial internal clearance (23).
7. A control method of an electronic water pump rotor axial clearance detection device of a new energy vehicle is characterized by comprising the following operation steps:
the first step is as follows: a rotor shaft (2) assembled by an impeller (22) and an isolation sleeve (21) is placed on a jacking rack (14) of a rotor shaft magnetic jacking assembly (3), and the rotor shaft (2) is transversely limited by a pair of rotor shaft limiting blocks (15);
the second step is that: a sensing transverse moving cylinder (4) on a detection supporting column (5) drives an isolation sleeve displacement sensor fixing seat (13) to displace to the upper part of a rotor shaft (2), then a lifting cylinder I (6) enables a limiting ejector rod (11) at the lower end of the isolation sleeve displacement sensor fixing seat (13) to descend to be in contact type pressure connection limiting with the upper end face of an isolation sleeve (21), at the moment, an isolation sleeve displacement sensor (9) is in pressure connection with the upper end face of the isolation sleeve (21), and the numerical value generated by the isolation sleeve displacement sensor (9) is X1;
the third step: the lifting cylinder II (7) drives the impeller displacement sensor (8) on the impeller displacement sensor fixing block (10) to move downwards, so that a displacement ejector rod (12) at the lower end of the impeller displacement sensor (8) is in pressure joint with the upper end face of the impeller (22), and the numerical value generated by the impeller displacement sensor (8) is Y1;
the fourth step: the jacking rod cylinder (20) is stretched to enable the magnetic jacking seat (16) on the top plate (19) to jack the isolation sleeve (21) in a repelling mode through magnetic force, when the isolation sleeve displacement sensor (9) and the impeller displacement sensor (8) generate numerical value changes, the jacking rod cylinder (20) stops jacking, the numerical value generated by the isolation sleeve displacement sensor (9) is X2, and the numerical value generated by the impeller displacement sensor (8) is Y2;
the fifth step: the clearance value = X2-X1- (Y2-Y1) of the axial clearance (23) is obtained through the value difference of the impeller displacement sensor (8) and the spacer sleeve displacement sensor (9).
8. The control method of the new energy vehicle electronic water pump rotor axial clearance detection device according to claim 7, characterized in that: because the magnetic force jacking seat (16) is provided with the magnetic force ring (17) which is repulsive to the isolation sleeve (21), the magnetic force jacking seat (16) and the isolation sleeve (21) realize non-contact jacking.
9. The control method of the new energy vehicle electronic water pump rotor axial clearance detection device according to claim 7, characterized in that: the distance between a limiting ejector rod (11) at the lower end of a fixed seat (13) of the isolating sleeve displacement sensor and the end face of an isolating sleeve (21) is adjusted by the sensing transverse cylinder (4) at the installation height of the detection supporting column (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210533796.1A CN114636399B (en) | 2022-05-17 | 2022-05-17 | New energy vehicle electronic water pump rotor axial clearance detection device and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210533796.1A CN114636399B (en) | 2022-05-17 | 2022-05-17 | New energy vehicle electronic water pump rotor axial clearance detection device and control method thereof |
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| CN114636399A true CN114636399A (en) | 2022-06-17 |
| CN114636399B CN114636399B (en) | 2022-11-18 |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN114636399B (en) | 2022-11-18 |
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Address after: 310018 No. 66, Xianglong Road, Qiantang District, Hangzhou, Zhejiang Applicant after: Hangzhou Taishang Intelligent Equipment Co.,Ltd. Address before: 310018 No. 66, Xianglong Road, Qiantang District, Hangzhou, Zhejiang Applicant before: Hangzhou Taishang Intelligent Equipment Co.,Ltd. |
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