WO2020061757A1 - Moteur linéaire tubulaire intégré avec un piston - Google Patents

Moteur linéaire tubulaire intégré avec un piston Download PDF

Info

Publication number
WO2020061757A1
WO2020061757A1 PCT/CN2018/107372 CN2018107372W WO2020061757A1 WO 2020061757 A1 WO2020061757 A1 WO 2020061757A1 CN 2018107372 W CN2018107372 W CN 2018107372W WO 2020061757 A1 WO2020061757 A1 WO 2020061757A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston
piston rod
motor stator
linear motor
piston cylinder
Prior art date
Application number
PCT/CN2018/107372
Other languages
English (en)
Chinese (zh)
Inventor
张婷
刘伟平
刘剑
Original Assignee
深圳超磁机器人科技有限公司
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 深圳超磁机器人科技有限公司 filed Critical 深圳超磁机器人科技有限公司
Priority to PCT/CN2018/107372 priority Critical patent/WO2020061757A1/fr
Publication of WO2020061757A1 publication Critical patent/WO2020061757A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors

Definitions

  • the invention relates to the technical field of mechanical parts, in particular to a piston-integrated tubular linear motor.
  • Linear drives are widely used in machinery production, manufacturing and other industrial fields.
  • the technical problem to be solved by the present invention is to provide a piston-integrated tubular linear motor.
  • the structure is small in size and the control accuracy is high.
  • a piston-integrated tubular linear motor includes a piston cylinder and a piston rod
  • a first motor stator is provided on the peripheral side of the piston cylinder, and a linear magnetic pole array formed by sequentially superposing N poles, S poles, N poles, and S stages in the high direction of the piston rod;
  • the linear magnetic pole array drives the piston rod to reciprocate along the axis of the piston cylinder to complete the linear drive.
  • the piston rod includes a piston rod and a piston rod head
  • the upper part of the piston rod is open, the inside of the piston rod is hollow, and the bottom of the piston rod is closed;
  • the linear magnetic pole array is filled in the hollow portion of the piston rod, and the linear magnetic pole array is disposed in the hollow portion of the piston rod;
  • the piston rod head is provided at an upper end portion of the piston rod.
  • the linear magnetic pole array is plastically sealed inside the piston rod, and the linear magnetic pole array is integrated with the piston rod.
  • it further comprises a magnetic scale and a position sensor, the position sensor is connected to the side of the magnetic scale, and the top of the magnetic scale is connected to the piston rod head;
  • the position sensor is disposed on one side of the piston cylinder; the position sensor is disposed between the piston cylinder and the magnetic scale.
  • it further comprises a battery and power board, a linear motor driver and a charging interface, and the battery and the power board and the linear motor driver are located outside the lower part of the piston cylinder;
  • the linear motor driver is electrically connected to the battery and the power board; the linear motor driver is electrically connected to the first motor stator;
  • the charging interface is set on the battery and power board; the charging interface is electrically connected to the battery and power board.
  • annular receiving cavity is provided on the outer side of the upper portion of the piston cylinder, and the first motor stator is disposed in the annular receiving cavity.
  • it further includes a second motor stator, the second motor stator is disposed on the peripheral side of the lower portion of the piston cylinder; the linear motor driver is electrically connected to the second motor stator;
  • the second motor stator and the first motor stator work at the same time; when the liquid is in the middle section of the piston cylinder, the pumping and draining process, The second motor stator is powered off and the first motor stator is energized to work; when the liquid is drained to the bottom section of the piston cylinder, the second motor stator and the first motor stator are energized to work simultaneously.
  • the base further comprises a base.
  • the base is provided at the bottom of the piston cylinder.
  • the base is provided with a first liquid inlet hole, a first liquid outlet hole, and a first pipe interface.
  • the first pipe interface is located in the middle of the bottom wall of the base.
  • a plug is provided at a pipe interface.
  • the base is provided with a rotary electric machine stator, and the second electric machine stator also serves as a rotor of the rotary electric machine, and the base is rotatably connected to the bottom of the piston cylinder;
  • the bottom of the piston cylinder body is provided with a second liquid inlet hole, a second liquid outlet hole and a second pipe interface;
  • the first liquid inlet is in communication with the second liquid inlet, and the first pipe connection, the first liquid outlet and the second liquid outlet are blocked;
  • B The first liquid outlet is in communication with the second liquid outlet, and the first tube interface, the first liquid inlet and the second liquid inlet are blocked;
  • C The first tube interface is connected with the outside, the first liquid inlet, the first A liquid inlet hole, a second liquid inlet hole, and a second liquid outlet hole are blocked;
  • D The first liquid inlet hole, the first liquid outlet hole, the first tube interface, the second liquid inlet hole, and the second liquid outlet The holes were blocked.
  • the piston rod is a housing made of a ferromagnetic material
  • the first motor stator is movably disposed in a high direction of the piston cylinder.
  • a piston-integrated tubular linear motor comprising a piston cylinder and a piston rod
  • a first motor stator is provided on the peripheral side of the piston cylinder, and N poles, S poles, A linear magnetic pole array composed of N poles and S stages stacked in turn.
  • the linear magnetic pole array drives the piston rod to reciprocate along the axis of the piston cylinder to complete linear driving.
  • a linear magnetic pole array is embedded inside the piston rod, and the structure is small. Based on the limitation of the piston cylinder, the linear motion has high accuracy. Based on the power of the first motor stator, the speed of the linear drive can be accurately controlled. control.
  • FIG. 1 is an exploded view of a piston-integrated tubular linear motor according to the present invention.
  • FIG. 2 is a cross-sectional view of a piston-integrated tubular linear motor according to the present invention.
  • FIG. 3 is a perspective structural diagram of a piston cylinder of a piston-integrated tubular linear motor according to the present invention.
  • FIG. 4 is a sectional view of a piston cylinder of a piston-integrated tubular linear motor according to the present invention.
  • 1-piston cylinder body 11-ring receiving cavity; 12-second liquid inlet; 13-second liquid outlet; 14-second pipe interface; 2-piston rod; 21-piston rod; 22-piston rod head ; 31- first motor stator; 32- second motor stator; 4- linear magnetic pole array; 5- magnetic scale; 6-position sensor; 7- battery and power board; 8- linear motor driver; 9- charging interface; 10-base; 101-first liquid inlet; 102-first liquid outlet; 103-first tube interface; 20-plug; 30-rotary motor stator.
  • the invention provides a piston-integrated tubular linear motor.
  • a piston-integrated tubular linear motor includes a piston cylinder 1 and a piston rod 2;
  • a first motor stator 31 is provided on the peripheral side of the piston cylinder 1, and a linear magnetic pole array 4 composed of N poles, S poles, N poles, and S stages is sequentially stacked in the high direction of the piston rod 2;
  • the linear magnetic pole array 4 drives the piston rod 2 to reciprocate along the axis of the piston cylinder 1.
  • a linear magnetic pole array 4 is embedded inside the piston rod 2, the structure is small, and based on the limitation of the piston cylinder 1, the linear motion has high accuracy.
  • the power of the first motor stator 31 can be accurately controlled, making the linear drive The speed can be precisely controlled.
  • the piston rod 2 includes a piston rod body 21 and a piston rod head 22;
  • the upper part of the piston rod body 21 is opened, the inside of the piston rod body 21 is hollow, and the bottom of the piston rod body 21 is closed;
  • the linear magnetic pole array 4 is filled in the hollow portion of the piston rod body 21;
  • the piston rod head 22 is provided at an upper end portion of the piston rod body 21.
  • the linear magnetic pole array 4 is plastically sealed inside the piston rod body 21, and the linear magnetic pole array and the piston rod body 21 are integrated.
  • a magnetic scale 5 and a position sensor 6 are further included.
  • the position sensor 6 is connected to the side of the magnetic scale 5, and the top of the magnetic scale 5 is connected to the piston rod head 22;
  • the position sensor 6 is provided on one side of the piston rod body 21.
  • This embodiment further includes a battery and power board 7, a linear motor driver 8, and a charging interface 9.
  • the battery and power board 7, the linear motor driver 8 are located outside the lower portion of the piston cylinder 1.
  • the linear motor driver 8 is electrically connected to the battery and the power board 7; the linear motor driver 8 is electrically connected to the first motor stator 31;
  • the charging interface 9 is electrically connected to a battery and a power board 7.
  • annular receiving cavity 11 is provided on the outer side of the upper portion of the piston cylinder 1, and the first motor stator 31 is disposed in the annular receiving cavity 11.
  • a second motor stator 32 is further included, and the second motor stator 32 is disposed on the peripheral side of the lower portion of the piston cylinder 1; the linear motor driver 8 is electrically connected to the second motor stator 32;
  • the second motor stator 32 and the first motor stator 31 work simultaneously; when the liquid is in the middle section of the piston cylinder 1, the pumping and During the draining process, the second motor stator 32 is powered off and the first motor stator 31 is powered on to work; when the liquid is drained to the bottom of the piston cylinder 1, the second motor stator 32 and the first motor stator 31 are powered on to work at the same time.
  • a base 10 is further included.
  • the base 10 is disposed at the bottom of the piston cylinder 1.
  • the base 10 is provided with a first liquid inlet 101, a first liquid outlet 102, and a first pipe interface 103; the first pipe interface 103 is located in the middle of the bottom wall of the base 10, and a plug 20 is provided at the first pipe joint 103.
  • the base 10 is provided with a rotary electric machine stator 30, and the second electric machine stator 32 also serves as a rotor of the rotary electric machine, and the base 10 is rotatably connected to the bottom of the piston cylinder 1;
  • the bottom of the piston cylinder 1 is provided with a second liquid inlet hole 12, a second liquid outlet hole 13, and a second pipe interface 14;
  • the first liquid inlet 101 is in communication with the second liquid inlet 12, the first tube interface 103, the first liquid outlet 102, and the second outlet Liquid hole 13 is blocked;
  • the first liquid outlet hole 102 is in communication with the second liquid outlet hole 13, the first tube interface 103, the first liquid inlet hole 101 and the second liquid inlet hole 12 are blocked;
  • the first tube The interface 103 communicates with the outside, and the first liquid inlet 101, the first liquid outlet 102, the second liquid inlet 12 and the second liquid outlet 13 are all blocked;
  • D The first liquid inlet 101 and the first liquid outlet The liquid hole 102, the first pipe interface 103, the second liquid inlet hole 12 and the second liquid outlet hole 13 are all blocked.
  • the piston rod body 21 is a housing made of a ferromagnetic material
  • the first motor stator 31 is movably disposed in a high direction of the piston cylinder 1.
  • a rotating electric machine driver is further included. Under the control of the rotating electric machine driver, the rotating electric machine stator 30 drives the second electric machine stator 32 to rotate, thereby realizing the four states of A, B, C, and D described above.
  • the present invention is not limited to the above embodiments, and the technical solutions of the foregoing embodiments of the present invention can be cross-combined with each other to form a new technical solution.
  • any technical solution formed by equivalent replacement falls within the protection scope claimed by the present invention. .

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Linear Motors (AREA)

Abstract

Un moteur linéaire tubulaire intégré avec un piston comprend un corps cylindrique (1) et une tige de piston (2). Un premier stator de moteur (31) est disposé à la périphérie du corps cylindrique (1). Un réseau de pôles magnétiques linéaires (4) est constitué de N et S pôles disposés en alternance dans une direction axiale de la tige de piston (2). Le réseau de pôles magnétiques linéaires (4) entraîne, sous l'action du premier stator de moteur (31), la tige de piston (2) pour effectuer un mouvement de va-et-vient le long d'un axe du corps cylindrique (1) de façon à effectuer un entraînement linéaire. En termes d'entraînement linéaire, étant donné que le réseau de pôles magnétiques linéaires (4) est inséré dans la tige de piston (2), le moteur de l'invention présente une petite taille de structure, et le confinement du corps cylindrique (1) assure un mouvement linéaire très précis. De plus, la puissance du premier stator de moteur (31) peut être commandée avec précision, ce qui assure une commande précise d'une vitesse d'entraînement linéaire.
PCT/CN2018/107372 2018-09-25 2018-09-25 Moteur linéaire tubulaire intégré avec un piston WO2020061757A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/107372 WO2020061757A1 (fr) 2018-09-25 2018-09-25 Moteur linéaire tubulaire intégré avec un piston

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/107372 WO2020061757A1 (fr) 2018-09-25 2018-09-25 Moteur linéaire tubulaire intégré avec un piston

Publications (1)

Publication Number Publication Date
WO2020061757A1 true WO2020061757A1 (fr) 2020-04-02

Family

ID=69950188

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/107372 WO2020061757A1 (fr) 2018-09-25 2018-09-25 Moteur linéaire tubulaire intégré avec un piston

Country Status (1)

Country Link
WO (1) WO2020061757A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090169399A1 (en) * 2007-12-27 2009-07-02 Metal Industries Research&Development Centre Ultra-thin miniature pump
CN101980037A (zh) * 2010-11-08 2011-02-23 清华大学 一种直线电机运动系统综合试验装置
CN102723838A (zh) * 2012-07-02 2012-10-10 朱厚林 一种电磁驱动机构及应用该机构的电磁水泵
CN102748277A (zh) * 2012-07-27 2012-10-24 徐荣兰 一种永磁直线活塞泵
CN104883013A (zh) * 2015-06-18 2015-09-02 中国北方车辆研究所 一种双向驱动机构
CN206448917U (zh) * 2017-01-20 2017-08-29 闽江学院 一种新型电动打气筒

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090169399A1 (en) * 2007-12-27 2009-07-02 Metal Industries Research&Development Centre Ultra-thin miniature pump
CN101980037A (zh) * 2010-11-08 2011-02-23 清华大学 一种直线电机运动系统综合试验装置
CN102723838A (zh) * 2012-07-02 2012-10-10 朱厚林 一种电磁驱动机构及应用该机构的电磁水泵
CN102748277A (zh) * 2012-07-27 2012-10-24 徐荣兰 一种永磁直线活塞泵
CN104883013A (zh) * 2015-06-18 2015-09-02 中国北方车辆研究所 一种双向驱动机构
CN206448917U (zh) * 2017-01-20 2017-08-29 闽江学院 一种新型电动打气筒

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