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WO2023246049A1 - Mécanisme de réglage d'inertie et moteur électrique - Google Patents

Mécanisme de réglage d'inertie et moteur électrique Download PDF

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Publication number
WO2023246049A1
WO2023246049A1 PCT/CN2022/141687 CN2022141687W WO2023246049A1 WO 2023246049 A1 WO2023246049 A1 WO 2023246049A1 CN 2022141687 W CN2022141687 W CN 2022141687W WO 2023246049 A1 WO2023246049 A1 WO 2023246049A1
Authority
WO
WIPO (PCT)
Prior art keywords
inertia
rotating shaft
end cover
axis
rear end
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.)
Ceased
Application number
PCT/CN2022/141687
Other languages
English (en)
Chinese (zh)
Inventor
陈应翔
陈飞龙
刘娜
华贤龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Publication of WO2023246049A1 publication Critical patent/WO2023246049A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • H02K7/02—Additional mass for increasing inertia, e.g. flywheels
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids

Definitions

  • the present application relates to the field of motor technology, specifically, to an inertia adjustment mechanism and a motor.
  • servo motors are widely used in industrial production equipment due to their advantages such as high control accuracy and fast response speed.
  • the servo motor's rotating shaft drives the load to rotate, the inertia ratio of the motor itself and its load has a great impact on the control stability and response speed of the servo system.
  • the moment of inertia of most servo motors has been determined after the whole machine leaves the factory and cannot be adjusted.
  • the moment of inertia of the load changes, it may not match the moment of inertia of the servo motor, causing the performance of the servo motor to degrade or Problems such as large position deviations may occur in a short period of time.
  • the main purpose of this application is to provide an inertia adjustment mechanism and a motor to solve the problem in the prior art that the rotational inertia of the servo motor cannot be adjusted.
  • an inertia adjustment mechanism including: a plurality of inertia disks, each inertia disk is rotatably disposed on the inertia disk mounting part around the axis of the rotating shaft, the plurality of inertia disks They are sleeved in sequence along the direction away from the axis of the rotating shaft, and are spaced between any two adjacent inertia disks;
  • the multi-claw chuck includes a chuck body and a plurality of clamping jaws, and the chuck body is sleeved on the rotating shaft.
  • a plurality of clamping jaws are arranged at intervals around the axis of the rotating shaft, and each clamping jaw is movably arranged on the chuck body in a direction approaching or away from the rotating shaft for grabbing one of the multiple inertia disks. , and drive the corresponding inertia disk to rotate with the rotating shaft to adjust the rotational inertia of the rotating shaft.
  • the chuck body is provided with: a central hole, the chuck body is sleeved on the rotating shaft through the central hole; a plurality of chute, the plurality of chute is spaced around the outer peripheral surface of the central hole, and the extension direction of each chute is uniform.
  • multiple chute and multiple clamping jaws Perpendicular to the center line of the central hole, multiple chute and multiple clamping jaws are arranged in one-to-one correspondence, and each clamping jaw is installed in the corresponding chute to move along the corresponding chute; multiple adjustment holes, multiple adjustment holes A plurality of chutes are arranged in one-to-one correspondence.
  • Each adjustment hole is located on the side of the corresponding chute away from the corresponding clamping jaw.
  • Each adjustment hole is connected with the corresponding chute and extends to the outer peripheral surface of the chuck body. , a part of each clamping jaw is located in the corresponding adjusting hole, so that the adjusting wrench extends into each adjusting hole to drive the movement of the corresponding clamping jaw to adjust the position of the
  • each clamping jaw includes: a moving part, which is used to be installed in the corresponding chute; and a grabbing part, which is provided on the moving part and is located on a side of the moving part away from the chuck body for use.
  • the connecting part is provided on the moving part and is located on the side of the moving part close to the chuck body for insertion into the corresponding adjustment hole.
  • each inertia disk includes a main disk body and a plurality of grasped parts arranged on a side of the main disk body close to the multi-claw chuck.
  • the plurality of grasped parts are arranged at intervals around the axis of the rotating shaft to form multiple grasped parts.
  • An escape groove, a plurality of grabbed parts and a plurality of escape grooves are arranged in one-to-one correspondence with the plurality of clamping claws; wherein each escape groove is used to avoid the corresponding clamping claw, and the grasping part of each clamping claw passes through The corresponding escape groove moves between the inner side and the outer side of the corresponding inertia plate, and the grabbing portion of each clamping claw is used to grab or release the corresponding grabbed portion.
  • the shortest distance a between two adjacent grasped parts is greater than the maximum width b of the grasping part; or the shortest distance between two adjacent inertia disks is greater than the maximum thickness c of the grasping part; or the clamping jaw and the number of grasped parts are both N; the angle between the two first side surfaces of the grabbing part that are spaced along the circumferential direction of the rotating shaft is ⁇ , and the first plane where each first side surface is located passes through the axis of the rotating shaft.
  • the angle between the two second side surfaces of the grasped part that are spaced apart along the circumferential direction of the rotating shaft is ⁇ , and the second plane where each second side surface is located passes through the axis of the rotating shaft; where, ( ⁇ + ⁇ ) ⁇ 360°/N, and ⁇ >180°/N; or the shortest distance a between two adjacent grabbed parts is greater than the maximum width b of the grabbing part, and the shortest distance between two adjacent inertia disks is greater than the maximum thickness c of the gripping part; or the shortest distance a between two adjacent gripped parts is greater than the maximum width b of the gripping part, and the number of grippers and gripped parts is both N; gripping The angle between the two first side surfaces of the part that are spaced apart along the circumferential direction of the rotating shaft is ⁇ , and the first plane where each first side is located passes through the axis of the rotating shaft; the gripped part is spaced apart along the circumferential direction of the rotating shaft.
  • the angle between the two second sides is ⁇ , and the second plane where each second side is located passes through the axis of the rotating shaft; where ( ⁇ + ⁇ ) ⁇ 360°/N, and ⁇ >180°/N; Or the shortest distance between two adjacent inertia disks is greater than the maximum thickness c of the gripping part, and the number of clamping claws and gripped parts is N; the two gripping parts are spaced apart along the circumferential direction of the rotating shaft.
  • the included angle between the first side surfaces is ⁇ , and the first plane where each first side surface is located passes through the axis of the rotating shaft; the included angle between the two second side surfaces of the grabbed part that are spaced along the circumferential direction of the rotating shaft is ⁇ , the second plane where each second side is located passes through the axis of the rotating shaft; where ( ⁇ + ⁇ ) ⁇ 360°/N, and ⁇ >180°/N.
  • the inertia disk mounting part is provided with a plurality of annular installation grooves, and the plurality of annular installation grooves are arranged in one-to-one correspondence with the plurality of inertia disks.
  • Each annular installation groove is used to install a corresponding inertia disk, and each inertia disk is connected to a corresponding inertia disk.
  • a lubricating oil film is coated between the outer surface of the inertia disk and the groove wall surface of the annular mounting groove.
  • a motor including the above-mentioned inertia adjustment mechanism.
  • the motor also includes: a front end cover and a rear end cover.
  • the front end cover and the rear end cover are arranged oppositely to jointly form a housing of the motor.
  • the rear end cover The end cover is the installation part of the inertia plate;
  • the encoder is set on the side of the rear end cover away from the front end cover;
  • the rotating shaft one end of the rotating shaft passes through the front end cover and the rear end cover and is connected to the encoder, and the other end of the rotating shaft is located on the front end cover
  • the inertia adjustment mechanism is located on the side of the rear end cover close to the front end cover.
  • Multiple inertia disks in the inertia adjustment mechanism are installed on the rear end cover.
  • the multi-claw chuck in the inertia adjustment mechanism is installed on the spindle.
  • the rear end cover is provided with an insertion hole.
  • One end of the insertion hole is connected to the internal space of the rear end cover, and the other end of the insertion hole is connected to the external space of the rear end cover.
  • the insertion hole is used for adjusting the multi-claw chuck.
  • the adjusting wrench passes through, and one end of the adjusting wrench passes through the insertion hole and is inserted into one of the adjusting holes of the multi-jaw chuck to drive the corresponding jaw to move.
  • the insertion holes are threaded holes for installing sealing screws so that the insertion holes are blocked by the sealing screws when the adjusting wrench is not used; or the number of the insertion holes is two, and the two insertion holes are respectively located at the rear end cover. on opposite sides of the Opposite sides of the rear end cap.
  • the inertia adjustment mechanism of the present application includes: a plurality of inertia disks, each inertia disk is rotatably arranged on the inertia disk mounting part around the axis of the rotation shaft, and the plurality of inertia disks are arranged in a direction away from the axis of the rotation shaft. They are set in sequence, and any two adjacent inertia disks are spaced apart; a multi-claw chuck.
  • the multi-claw chuck includes a chuck body and a plurality of clamping jaws. The chuck body is set on the rotating shaft and is fixedly connected to the rotating shaft.
  • the clamping jaws are arranged at intervals around the axis of the rotating shaft.
  • Each clamping jaw is movably arranged on the chuck body in a direction approaching or away from the rotating shaft, for grabbing one of the plurality of inertia disks and driving the corresponding inertia disk.
  • the inertia adjustment mechanism of the present application can realize the connection between the multi-claw chuck and the inertia plates with different inertia sizes through the movement of each jaw on the multi-claw chuck, so that the connection between the multi-claw chuck and the corresponding inertia plate can be realized.
  • Figure 1 shows a cross-sectional view of an embodiment of an electric motor according to the present application taken by a first plane passing through the axis of the rotating shaft when the multi-jaw chuck is not connected to the inertia plate;
  • Figure 2 shows a cross-sectional view of an embodiment of an electric machine according to the present application taken through a first plane passing through the axis of the rotational shaft when the multi-jaw chuck is connected to one of the inertia disks;
  • Figure 3 shows a schematic structural view of the inertia plate of the inertia adjustment mechanism of the motor shown in Figures 1 and 2;
  • Figure 4 shows a schematic structural view of the multi-jaw chuck of the inertia adjustment mechanism of the motor shown in Figures 1 and 2;
  • Figure 5 shows a cross-sectional view of the inertia adjustment mechanism of the motor shown in Figures 1 and 2 taken by a second plane perpendicular to the axis of the rotating shaft when the first inertia plate is in the initial position;
  • Figure 6 shows a cross-sectional view of the inertia adjustment mechanism of the motor shown in Figures 1 and 2 taken by a second plane perpendicular to the axis of the rotating shaft when the first inertia plate is in a non-initial position;
  • FIG. 7 shows a schematic structural diagram of the motor shown in FIGS. 1 and 2 .
  • Multi-jaw chuck 21. Chuck body; 211. Center hole; 212. Slide groove; 213. Adjustment hole; 22. Clamp; 2201. First clamping jaw; 2202. Second clamping jaw; 2203. No. Three clamping jaws; 221, moving part; 222, grabbing part;
  • the present application provides an inertia adjustment mechanism, including: a plurality of inertia disks 1, each inertia disk 1 is rotatably arranged on the inertia disk mounting part around the axis of the rotating shaft 3, and a plurality of inertia disks 1.
  • the inertia disks 1 are arranged one after another in the direction away from the axis of the rotating shaft 3, and any two adjacent inertia disks 1 are spaced apart;
  • the multi-claw chuck 2 includes a chuck body 21 and a plurality of clamping jaws 22 , the chuck body 21 is sleeved on the rotating shaft 3 and is fixedly connected to the rotating shaft 3.
  • a plurality of clamping jaws 22 are arranged at intervals around the axis of the rotating shaft 3. Each clamping jaw 22 is movably arranged on the chuck in a direction approaching or away from the rotating shaft 3.
  • the disk body 21 is used to grab one of the plurality of inertia disks 1 and drive the corresponding inertia disk 1 to rotate with the rotating shaft 3 to adjust the rotational inertia of the rotating shaft 3 .
  • the inertia adjustment mechanism of the present application can realize the connection between the multi-claw chuck 2 and the inertia disk 1 of different inertia sizes through the movement of each clamp 22 on the multi-claw chuck 2, so that the multi-claw chuck 2 can be connected with the corresponding inertia disk 1.
  • the inertia disks 1 can form a whole body and rotate together with the rotating shaft 3 to achieve the purpose of changing the rotational inertia of the motor, solving the problem that the rotational inertia of the servo motor in the prior art cannot be adjusted, so as to prevent the external load of the motor from occurring. It can maintain better working performance during changes and improve the control accuracy and response speed of the motor.
  • the plurality of inertia disks 1 include a first inertia disk 101 and a second inertia disk 102.
  • the second inertia disk 102 is set outside the first inertia disk 101 and is spaced apart from the first inertia disk 101.
  • the first inertia disk 102 is The sizes of the disk 101 and the second inertia disk 102 can be designed according to different usage conditions.
  • the number of jaws 22 in the multi-jaw chuck 2 may be two, three, four or more.
  • the number of clamping jaws 22 in the multi-jaw chuck 2 of the present application is three.
  • the three clamping jaws 22 include a first clamping jaw 2201, a second clamping jaw 2202 and a The third clamping jaw 2203, wherein the angle between the line connecting the center of the first clamping jaw 2201 and the axis of the rotating shaft 3 and the connecting line between the center of the second clamping jaw 2202 and the axis of the rotating shaft 3 is 90 degree, the angle between the line connecting the center of the second clamping jaw 2202 and the axis of the rotating shaft 3 and the connecting line between the center of the third clamping jaw 2203 and the axis of the rotating shaft 3 is also 90 degrees.
  • the included angle between the line connecting the center of the claw 2201 and the axis of the rotating shaft 3 and the connecting line between the center of the third clamping claw 2203 and the axis of the rotating shaft 3 is 180 degrees.
  • the number of clamping jaws 22 in the multi-jaw chuck 2 is three, and the angle between two adjacent clamping jaws 22 is 90°.
  • the multi-jaw chuck 2 of the present application has an interference fit between the chuck body 21 and the rotating shaft 3.
  • the rotating shaft 3 is provided with a shoulder, and the shoulder is located on the side of the chuck body 21 away from the inertia plate 1 to adjust the clamping force.
  • the disc body 21 performs axial limitation to ensure that the multi-claw chuck 2 can rotate synchronously with the rotating shaft 3; in addition, when the motor is not working, each jaw 22 of the multi-claw chuck 2 is clamped on the rotating shaft 3.
  • the clamping jaws 22 of the multi-jaw chuck 2 will move along the radial direction of the rotating shaft 3.
  • the distance between each clamping jaw 22 and the axis of the rotating shaft 3 is Changes in the distance between them will affect the overall moment of inertia. Therefore, the clamping jaw 22 needs to be made of materials with a smaller density to reduce the impact on the overall moment of inertia.
  • the chuck body 21 is provided with: a central hole 211 through which the chuck body 21 is sleeved on the rotating shaft 3; a plurality of slide grooves 212 surrounding the outer periphery of the central hole 211 The extending direction of each chute 212 is perpendicular to the center line of the central hole 211.
  • the plurality of chute 212 and the plurality of clamping claws 22 are arranged in one-to-one correspondence. Each clamping claw 22 is installed in the corresponding chute 212.
  • each adjustment hole 213 is connected with the corresponding slide groove 212 and extends to the outer peripheral surface of the chuck body 21.
  • a part of each clamp 22 is located in the corresponding adjustment hole 213, so that the adjustment wrench can pass through
  • Each adjustment hole 213 is used to drive the movement of the corresponding clamping jaw 22 to adjust the position of the corresponding clamping jaw 22 in the corresponding slide groove 212 .
  • each clamping jaw 22 includes: a moving part 221, which is used to be installed in the corresponding chute 212; a grabbing part 222, which is disposed on the moving part 221 and located on the moving part 221
  • the side away from the chuck body 21 is used to contact or separate from the inertia plate 1; the connecting part is provided on the moving part 221 and is located on the side of the moving part 221 close to the chuck body 21, for Insert into the corresponding adjustment hole 213.
  • each inertia disk 1 includes a main disk body 11 and a plurality of grasped parts 12 arranged on the side of the main disk body 11 close to the multi-claw chuck 2 , and surrounded by the plurality of grasped parts 12
  • the axes of the rotating shaft 3 are arranged at intervals to form a plurality of escape grooves 13.
  • the plurality of grabbed parts 12 and the plurality of escape grooves 13 are arranged in one-to-one correspondence with the plurality of clamping claws 22; wherein each escape groove 13 is used for To avoid the corresponding clamping jaw 22, the grabbing portion 222 of each clamping jaw 22 moves between the inside and outside of the corresponding inertia plate 1 through the corresponding avoiding groove 13, and the grabbing portion 222 of each clamping jaw 22 is used for Grab or release the corresponding grabbed part 12.
  • the number of grasped parts 12 in the inertia disk 1 may be two, three, four or more.
  • the number of captured parts 12 in the inertia plate 1 of the present application is three.
  • the three captured parts 12 are evenly arranged at 360 degrees around the axis of the rotating shaft 3, and two adjacent ones are
  • the connection between the center of the grasped part 12 and the axis of the rotating shaft 3 is 120 degrees.
  • the shortest distance a between two adjacent grabbed parts 12 is greater than the maximum width b of the grabbing part 222 ; or the shortest distance between two adjacent inertia disks 1 is greater than the maximum thickness of the grabbing part 222 c; Or the number of the clamping claws 22 and the grasped parts 12 is both N; the angle between the two first sides of the grabbing part 222 that are spaced along the circumferential direction of the rotating shaft 3 is ⁇ , and each first side The first plane where they are located all passes through the axis of the rotating shaft 3; the angle between the two second side surfaces of the grasped part 12 that are spaced along the circumferential direction of the rotating shaft 3 is ⁇ , and the second plane where each second side surface is located is The axis passing through the rotating shaft 3; wherein, ( ⁇ + ⁇ ) ⁇ 360°/N, and ⁇ >180°/N; or the shortest distance a between two adjacent grabbed parts 12 is greater than the maximum distance of the grabbing part 222 Width b
  • the first planes all pass through the axis of the rotating shaft 3; the angle between the two second side surfaces of the grasped part 12 that are spaced along the circumferential direction of the rotating shaft 3 is ⁇ , and the second planes where each second side is located all pass through the rotating axis.
  • the shortest distance a between two adjacent grasped parts 12 is greater than the maximum width b of the grasping part 222 .
  • the shortest distance between two adjacent inertia disks 1 is greater than the maximum thickness c of the gripping portion 222 , where the thickness of the gripping portion 222 is the diameter of the gripping portion 222 on the rotating shaft 3 size in the direction.
  • the number of the clamping jaws 22 and the grasped parts 12 is N; is ⁇ , the first plane where each first side is located passes through the axis of the rotating shaft 3; the angle between the two second side surfaces of the grasped part 12 spaced along the circumferential direction of the rotating shaft 3 is ⁇ , and each second side is ⁇ .
  • the second plane where the side is located all passes through the axis of the rotating shaft 3; among them, ( ⁇ + ⁇ ) ⁇ 360°/N, and ⁇ >180°/N; in this way, through the angle design of ⁇ and ⁇ , multi-claw control is achieved
  • the optional connection or disconnection between the chuck 2 and the plurality of inertia disks 1 makes the inertia adjustment mechanism of the present application simpler in structure, more convenient in operation, and more universal.
  • the shortest distance a between two adjacent grasped parts 12 is greater than the maximum width b of the grasping part 222
  • the shortest distance between two adjacent inertia plates 1 is greater than the maximum width b of the grasping part 222 .
  • the shortest distance a between two adjacent grabbed parts 12 is greater than the maximum width b of the grabbing part 222 , and the number of the clamping claws 22 and the grabbed parts 12 is N
  • the angle between the two first side surfaces of the grabbing portion 222 that are spaced apart along the circumferential direction of the rotating shaft 3 is ⁇ , and the first plane where each first side surface is located passes through the axis of the rotating shaft 3; the grabbed portion 12
  • the angle between the two second sides spaced apart along the circumferential direction of the rotating shaft 3 is ⁇ , and the second plane where each second side is located passes through the axis of the rotating shaft 3; where, ( ⁇ + ⁇ ) ⁇ 360°/ N, and ⁇ >180°/N;
  • the shortest distance between two adjacent inertia disks 1 is greater than the maximum thickness c of the grasping part 222, and the number of the clamping claws 22 and the grasped parts 12 is N;
  • the included angle between the two first side surfaces of the grabbing portion 222 that are spaced apart along the circumferential direction of the rotating shaft 3 is ⁇ , and the first plane where each first side surface is located passes through the axis of the rotating shaft 3;
  • the angle between the two second sides spaced apart in the circumferential direction of 3 is ⁇ , and the second plane where each second side is located passes through the axis of the rotating shaft 3; where ( ⁇ + ⁇ ) ⁇ 360°/N, and ⁇ >180°/N.
  • the included angle ⁇ of the grabbed part 12 of each inertia plate 1 should be as large as possible, but it also needs to be reserved.
  • An escape groove 13 with sufficient width is provided to avoid the grasping portion 222 of the corresponding clamping claw 22 , so that the grasping portion 222 of each clamping claw 22 can pass through the corresponding escape slot 13 between the inner and outer sides of the inertia plate 1 Movement, under the premise that ⁇ and ⁇ satisfy ( ⁇ + ⁇ ) ⁇ 360°/N, and ⁇ >180°/N, the specific angle values of ⁇ and ⁇ need to be calculated according to the specific structure and functional requirements of the inertia adjustment mechanism. .
  • the inertia disk mounting part is provided with a plurality of annular installation grooves, and the plurality of annular installation grooves are arranged in one-to-one correspondence with the plurality of inertia disks 1.
  • Each annular installation groove is used to install a corresponding inertia disk 1.
  • a lubricating oil film is coated between the outer surface of the inertia disk 1 and the groove wall surface of the annular installation groove, so that when the inertia disk 1 rotates under the action of external force, the friction force between it and the annular installation groove can be as high as possible. Minimum.
  • this application also provides a motor, including the above-mentioned inertia adjustment mechanism.
  • the motor also includes: a front end cover 4 and a rear end cover 5.
  • the front end cover 4 and the rear end cover 5 are arranged oppositely, so that Together they form the housing of the motor.
  • the rear end cover 5 is the inertia disk mounting part; the encoder 6 is arranged on the side of the rear end cover 5 away from the front end cover 4; the encoder end cover is arranged on the side of the rear end cover 5 away from the front end.
  • the cover 4 is used to cover the encoder 6; the rotating shaft 3, one end of the rotating shaft 3 passes through the front end cover 4 and the rear end cover 5 and is connected to the encoder 6, and the other end of the rotating shaft 3 is located away from the front end cover 4
  • One side of the rear end cover 5; the inertia adjustment mechanism is located on the side of the rear end cover 5 close to the front end cover 4.
  • Multiple inertia disks 1 in the inertia adjustment mechanism are rotatably installed on the rear end cover 5.
  • the inertia adjustment mechanism The multi-jaw chuck 2 is installed on the rotating shaft 3.
  • the rear end cover 5 is provided with an insertion hole 8.
  • One end of the insertion hole 8 is connected to the internal space of the rear end cover 5, and the other end of the insertion hole 8 is connected to the external space of the rear end cover 5.
  • the insertion hole 8 8 is used to pass the adjustment wrench for adjusting the multi-claw chuck 2.
  • One end of the adjustment wrench passes through the insertion hole 8 and is inserted into one of the adjustment holes 213 of the multi-claw chuck 2 to drive the corresponding jaw 22 to move. Adjust the motor's moment of inertia without disassembling the motor.
  • the insertion hole 8 is a threaded hole for installing a sealing screw to block the insertion hole 8 by the sealing screw when the adjusting wrench is not used; or the number of the insertion holes 8 is two, and the two insertion holes 8 respectively located on opposite sides of the rear end cover 5; or the insertion holes 8 are threaded holes for installing sealing screws so that the insertion holes 8 are blocked by the sealing screws when the adjusting wrench is not used, and the number of the insertion holes 8 is Two, two insertion holes 8 are respectively located on opposite sides of the rear end cover 5 .
  • the insertion hole 8 is a threaded hole for installing a sealing screw, so that the insertion hole 8 is blocked by the sealing screw when the adjusting wrench is not used to ensure the dustproof and waterproof performance of the motor.
  • the number of insertion holes 8 is two, and the two insertion holes 8 are respectively located on opposite sides of the rear end cover 5; wherein, one side of the rear end cover 5 is provided with a waterproof cover 7, The two insertion holes 8 are respectively located on opposite sides of the waterproof cover 7 .
  • the insertion holes 8 are threaded holes for installing sealing screws to block the insertion holes 8 with the sealing screws when the adjusting wrench is not used, and the number of the insertion holes 8 is two. , the two insertion holes 8 are respectively located on opposite sides of the rear end cover 5 .
  • the installation method of the motor of this application is: first install the multi-claw chuck 2 and the rear bearing on the rotating shaft 3, and install the first inertia plate 101 and the second inertia plate 102 on the rear end cover 5 in sequence, and then install the rear end cover 5.
  • the end cover 5 is installed on the rear bearing on the rotating shaft 3, and then the encoder 6 and the encoder end cover 9 are installed.
  • the used inertia plate 1 When any inertia plate 1 needs to be changed after use, the used inertia plate 1 must first be reset to the initial position as shown in Figure 7 to facilitate subsequent adjustment and use; if the multi-jaw chuck 2 is not clamped Whether the clamping jaw 22 is clamped on the left side or the clamping jaw 22 on the right side, after operating the inertia plate 1 according to the reset steps, first release it from either the left or right side.
  • Each clamp 22 then rotates one of the adjustment holes 213 above the rotating shaft 3; if the clamp 22 corresponding to the adjusting hole 213 can move in the direction close to the axis of the rotating shaft 3, it means that the reset is correct and the inertia plate 1 is already in the initial position; if the clamping jaw 22 cannot move in the direction close to the axis of the rotating shaft 3, it means that the reset is wrong and it can be reset again.
  • the inertia adjustment mechanism of the present application includes: a plurality of inertia disks 1. Each inertia disk 1 is rotatably arranged on the inertia disk mounting part around the axis of the rotating shaft 3. The plurality of inertia disks 1 are sleeved in sequence in a direction away from the axis of the rotating shaft 3. Assume that any two adjacent inertia plates 1 are spaced apart; a multi-claw chuck 2.
  • the multi-claw chuck 2 includes a chuck body 21 and a plurality of jaws 22. The chuck body 21 is sleeved on the rotating shaft 3 and connected with the rotating shaft 3.
  • the rotating shaft 3 is fixedly connected, and a plurality of clamping jaws 22 are arranged at intervals around the axis of the rotating shaft 3.
  • Each clamping jaw 22 is movably arranged on the chuck body 21 in a direction approaching or away from the rotating shaft 3 for grabbing multiple inertias.
  • the inertia adjustment mechanism of the present application can realize the connection between the multi-claw chuck 2 and the inertia disk 1 of different inertia sizes through the movement of each clamp 22 on the multi-claw chuck 2, so that the multi-claw chuck 2 and the inertia disk 1 can be connected to each other.
  • the corresponding inertia disks 1 can form a whole body and rotate together with the rotating shaft 3 to achieve the purpose of changing the rotational inertia of the motor, solving the problem that the rotational inertia of the servo motor in the prior art cannot be adjusted, so that the rotational inertia of the servo motor cannot be adjusted outside the motor. It can maintain better working performance when the load changes, and improve the control accuracy and response speed of the motor.
  • spatially relative terms can be used here, such as “on", “on", “on the upper surface of", “above”, etc., to describe what is shown in the figure.
  • the exemplary term “over” may include both orientations “above” and “below.”
  • the device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

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  • Load-Engaging Elements For Cranes (AREA)

Abstract

La présente demande concerne un mécanisme de réglage d'inertie et un moteur électrique. Le mécanisme de réglage d'inertie comprend : une pluralité de disques d'inertie, chaque disque d'inertie étant agencé de manière rotative sur une partie de montage de disque d'inertie autour de l'axe d'un arbre rotatif, la pluralité de disques d'inertie étant séquentiellement emmanchés dans un sens à l'opposé de l'axe de l'arbre rotatif, et deux disques d'inertie adjacents étant agencés à un intervalle ; et un disque de serrage à mâchoires multiples, le disque de serrage à mâchoires multiples comprenant un disque de serrage et une pluralité de mâchoires de serrage, le disque de serrage étant emmanché sur l'arbre rotatif et étant relié à demeure à l'arbre rotatif, la pluralité de mâchoires de serrage étant agencées à des intervalles autour de l'axe de l'arbre rotatif, et chaque mâchoire de serrage étant agencée de manière mobile sur le disque de serrage dans un sens à proximité ou à l'opposé de l'arbre rotatif de façon à saisir un disque de la pluralité de disques d'inertie et à entraîner le disque d'inertie correspondant pour qu'il tourne avec l'arbre rotatif de façon à régler une inertie de rotation de l'arbre rotatif, de telle sorte que le problème selon lequel l'inertie de rotation d'un servomoteur dans l'état de la technique ne peut pas être réglée est résolu.
PCT/CN2022/141687 2022-06-21 2022-12-23 Mécanisme de réglage d'inertie et moteur électrique Ceased WO2023246049A1 (fr)

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CN118523540B (zh) * 2024-05-22 2024-11-29 北京北控环境保护有限公司 一种转轴启动辅助动力装置及引风机

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