CN101976927B - High-precision efficient straight reciprocating driving system - Google Patents
High-precision efficient straight reciprocating driving system Download PDFInfo
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- CN101976927B CN101976927B CN2010105227297A CN201010522729A CN101976927B CN 101976927 B CN101976927 B CN 101976927B CN 2010105227297 A CN2010105227297 A CN 2010105227297A CN 201010522729 A CN201010522729 A CN 201010522729A CN 101976927 B CN101976927 B CN 101976927B
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Abstract
The invention relates to a high-precision efficient straight reciprocating driving system, belonging to the technical field of electrical machines, solving the problem of over-high temperature rise of winding caused by the fact that the straight reciprocating driving system composed of linear electric motors needs to increase the winding current for obtaining larger accelerated speed. The output end of a controller is connected with the primary winding of the linear motor; the moving starting point and the end point of a motor stator are respectively fixed with a buffer stator which is positioned at two ends of the moving direction of the motor rotator; two end surfaces of the motor stator opposite to the buffer stator are respectively fixed with a buffer rotator; the buffer rotator can be respectively inserted into the centers of the inner space of the two buffer stators during moving; the stator permanent magnet of the buffer stator is fixed on the inner side surface of a stator magnet yoke; a rare earth permanent magnet is fixed with the end surface of the motor stator through a connection body; the rare earth permanent magnet is inserted into the inner space of the buffer stator and forms a uniform and repellent magnetic force with the stator permanent magnet. The invention is suitable for the straight reciprocating driving system.
Description
Technical field
The present invention relates to a kind of high-accuracy high-efficiency rate straight line reciprocating drive, belong to technical field of motors.
Background technology
The mode that the linear reciprocation drive system can adopt electric rotating machine to add movement conversion mechanism constitutes, and also can adopt linear electric motors to constitute.The existing linear reciprocation drive system that is made up of linear electric motors when stroke fixedly the time, must be controlled linear electric motors and quicken in start of a run; In the stroke terminal slowdown, if obtain bigger acceleration, just need bigger motor volume or bigger winding current; Thus, cause the capacity of driving governor and cost higher, and simultaneously; Bigger winding current causes big, the temperature rise of the loss of winding again; Make the burden of motor cooling system, the too high electric machine structure that also can cause of temperature rise deforms, and influences the control precision of whole drive system.
Summary of the invention
The objective of the invention is in order to solve the existing linear reciprocation drive system that is made up of linear electric motors is to obtain bigger acceleration, needs to strengthen winding current and causes the too high problem of winding temperature rise thus, and a kind of high-accuracy high-efficiency rate straight line reciprocating drive is provided.
High-accuracy high-efficiency rate straight line reciprocating drive according to the invention, it is made up of controller, linear electric motors and two linear electromagnetic buffers,
The output of said controller links to each other with the elementary winding of linear electric motors,
Linear electric motors comprise motor stator and electric mover,
Each linear electromagnetic buffer comprises buffer stator and buffer mover,
The fixing respectively buffer stator in the motion starting point of motor stator and exercise end place, the buffer stator is positioned at the two ends of the electric mover direction of motion,
On two end faces of electric mover and buffer stator opposite side, fixing respectively buffer mover, when electric mover moved, the buffer mover can be inserted into the inner space of two buffer stators respectively, and was positioned at the center in buffer stator interior space;
The buffer stator is made up of hollow type stator yoke and stator permanent magnet, and stator permanent magnet is fixed on the inner surface of stator yoke;
The buffer mover is made up of rare-earth permanent magnet and connector, and rare-earth permanent magnet is fixed through the end face of connector and electric mover.
Advantage of the present invention is:
The present invention utilize the linear electromagnetic buffer when linear electric motors slow down stored energy, when motor oppositely quickens, release energy; Can reduce electric current and the winding loss of linear electric motors when whole start of a run and destination county acceleration and deceleration greatly; Reduced the temperature rise of winding; Reduce the malformation of the too high motor that brings of temperature rise simultaneously, simplified cooling system structure, improved the efficient and the control precision of whole drive system.
Description of drawings
Fig. 1 is the structural representation of execution mode three said high-accuracy high-efficiency rate straight line reciprocating drives, and the stator permanent magnet of figure cathetus electromagnetic buffer is a horizontal positioned;
Fig. 2 is the structural representation of execution mode three said high-accuracy high-efficiency rate straight line reciprocating drives, and the stator permanent magnet of figure cathetus electromagnetic buffer is vertically to place;
Fig. 3 is the decomposition texture sketch map of execution mode three described linear electromagnetic buffers;
Fig. 4 is the decomposition texture sketch map of execution mode five described linear electromagnetic buffers;
Fig. 5 is the decomposition texture sketch map of execution mode six described linear electromagnetic buffers;
Fig. 6 is the structural representation of execution mode nine said high-accuracy high-efficiency rate straight line reciprocating drives.
Embodiment
Embodiment one: below in conjunction with Fig. 1 to Fig. 6 this execution mode is described, the described high-accuracy high-efficiency rate of this execution mode straight line reciprocating drive, it is made up of controller, linear electric motors and two linear electromagnetic buffers,
The output of said controller links to each other with the elementary winding of linear electric motors,
Linear electric motors comprise motor stator 11 and electric mover 12,
Each linear electromagnetic buffer comprises buffer stator 21 and buffer mover 22,
The fixing respectively buffer stator 21 in the motion starting point of motor stator 11 and exercise end place, buffer stator 21 is positioned at the two ends of electric mover 12 directions of motion,
On two end faces of electric mover 12 and buffer stator 21 opposite sides; Fixing respectively buffer mover 22; When electric mover 12 motions, buffer mover 22 can be inserted into the inner space of two buffer stators 21 respectively, and is positioned at the center of buffer stator 21 inner spaces;
When buffer mover 22 is inserted into the inner space of buffer stator 21, leave air gap between buffer mover 22 and the buffer stator 21.
The said high-accuracy high-efficiency rate of this execution mode straight line reciprocating drive in the specific implementation; Can be according to needed braking force characteristic; Confirm the shape of the buffer stator 21 and the rare-earth permanent magnet 22-1 of linear electromagnetic buffer; The mutual expelling force that utilizes stator permanent magnet 21-2 and rare-earth permanent magnet 22-1 to form is each other realized reciprocating motion.
Embodiment two: this execution mode is for to the further specifying of execution mode one, and said rare-earth permanent magnet 22-1 and the formed magnetic field force of stator permanent magnet 21-2 are the direction of repelling each other.Other composition and annexation are identical with execution mode one.
Embodiment three: this execution mode is described below in conjunction with Fig. 1, Fig. 2 and Fig. 3; This execution mode is for to the further specifying of execution mode two, and said hollow type stator yoke 21-1 is made up of four yoke plates, and said four yoke plates are flat; Said four yoke plates form prismatic space or terrace with edge space; The cross section of said prism is a rectangle, and the axis of the last bottom surface of said terrace with edge overlaps, and the bottom surface of said terrace with edge is relative with buffer mover 22; Said stator permanent magnet 21-2 is two,
On two yoke plate inner surfaces that are oppositely arranged of said stator yoke 21-1 a stator permanent magnet 21-2 is set respectively;
Rare-earth permanent magnet 22-1 and connector 22-2 are flat,
The transverse width of stator permanent magnet 21-2 is greater than the transverse width of rare-earth permanent magnet 22-1, and the direction of motion length of stator permanent magnet 21-2 is greater than the direction of motion length of rare-earth permanent magnet 22-1;
The magnetizing direction of stator permanent magnet 21-2 is vertical with the yoke plate at its place, and the magnetizing direction of rare-earth permanent magnet 22-1 and stator permanent magnet 21-2 is opposite.Other composition and annexation are identical with execution mode two.
The bottom surface of terrace with edge described in this execution mode is meant the bottom surface that its area is bigger.
Embodiment four: below in conjunction with Fig. 1 and Fig. 2 this execution mode is described, this execution mode is for to the further specifying of execution mode three, said two stator permanent magnet 21-2 for up and down relatively or about relative.Other composition and annexation are identical with execution mode three.
Embodiment five: this execution mode is described below in conjunction with Fig. 1, Fig. 2 and Fig. 4; This execution mode is for to the further specifying of execution mode two, and said hollow type stator yoke 21-1 is made up of four yoke plates, and said four yoke plates are flat; Said four yoke plates form prismatic space or terrace with edge space; The cross section of said prism is a rectangle, and the axis of the last bottom surface of said terrace with edge overlaps, and the bottom surface of said terrace with edge is relative with buffer mover 22; Said stator permanent magnet 21-2 is four,
A stator permanent magnet 21-2 is set respectively on the every yoke plate of said stator yoke 21-1,
The end surfaces center of connector 22-2 is provided with stem stem 22-21 along the direction of motion, and rare-earth permanent magnet 22-1 socket is fixed on the stem stem 22-21, and the direction of motion cross section of said connector 22-2 and rare-earth permanent magnet 22-1 is rectangle,
The transverse width of every stator permanent magnet 21-2 greater than with the transverse width of the rare-earth permanent magnet 22-1 of its opposite side, the direction of motion length of stator permanent magnet 21-2 is greater than the direction of motion length of rare-earth permanent magnet 22-1;
Stator permanent magnet 21-2 all adopts parallel magnetization, and its magnetizing direction is vertical with the yoke plate at its place, and the homopolarity of all stator permanent magnet 21-2 is inside, and the magnetizing direction of rare-earth permanent magnet 22-1 and stator permanent magnet 21-2 is opposite.Other composition and annexation are identical with execution mode two.
Embodiment six: this execution mode is described below in conjunction with Fig. 1, Fig. 2 and Fig. 5; This execution mode is further specifying execution mode two; The inner space of said hollow type stator yoke 21-1 is cylindrical or truncated cone-shaped, and the bottom surface of said truncated cone-shaped hollow type stator yoke 21-1 is relative with buffer mover 22, and the madial wall of the profile of stator permanent magnet 21-2 and hollow type stator yoke 21-1 is complementary; And be fixed on the madial wall of this hollow type stator yoke 21-1
The end surfaces center of connector 22-2 is provided with stem stem 22-21 along the direction of motion, and rare-earth permanent magnet 22-1 socket is fixed on the stem stem 22-21, and the direction of motion cross section of said connector 22-2 and rare-earth permanent magnet 22-1 is circle,
Stator permanent magnet 21-2 adopts radial magnetizing, and the magnetizing direction of the magnetizing direction of stator permanent magnet 21-2 and rare-earth permanent magnet 22-1 is opposite.Other composition and annexation are identical with execution mode two.
The bottom surface of truncated cone-shaped hollow type stator yoke 21-1 is meant the bottom surface that its area is bigger in this execution mode.
Embodiment seven: this execution mode is with execution mode three, four, five or six difference; Said high-accuracy high-efficiency rate straight line reciprocating drive also comprises 2n linear electromagnetic buffer; Wherein n is a positive integer; The motion starting point of motor stator 11 and exercise end place are fixed with n+1 linear electromagnetic buffer respectively, and said n+1 linear electromagnetic buffer is connected in parallel.Other composition and annexation and execution mode three, four, five or six phase are together.
When the bigger braking force of needs, the number of the linear electromagnetic buffer that can select as the case may be to be in parallel.
Embodiment eight: this execution mode is for to the further specifying of execution mode three, four, five or six, and said electric mover 12 adopts that air-float guide rails support, Magnetically suspended guide rail supports or mechanical line slideway supports.Other composition and annexation and execution mode three, four, five or six phase are together.
Embodiment nine: this execution mode is described below in conjunction with Fig. 6; This execution mode is the further qualification to execution mode three; The rare-earth permanent magnet 22-1 of said each buffer mover 22 is two; The upper and lower surfaces of said connector 22-2 forms a shoulder respectively, and said two shoulder places embed respectively and fixing rare-earth permanent magnet 22-1;
The magnetizing direction of said two rare-earth permanent magnet 22-1 is identical.Other composition and annexation are identical with execution mode three.
Embodiment ten: this execution mode is for to the further specifying of execution mode three, four, five or six, and said linear electric motors are a cover winding or overlap winding more.Other composition and annexation and execution mode three, four, five or six phase are together.
High-accuracy high-efficiency rate straight line reciprocating drive of the present invention, said linear electric motors are moving primary structure or moving secondary structure; Described linear electric motors can be single-side structural or bilateral structure.
The present invention is not limited to above-mentioned execution mode, can also be the reasonable combination of technical characterictic described in above-mentioned each execution mode.
Claims (9)
1. high-accuracy high-efficiency rate straight line reciprocating drive, it is characterized in that: it is made up of controller, linear electric motors and two linear electromagnetic buffers,
The output of said controller links to each other with the elementary winding of linear electric motors,
Linear electric motors comprise motor stator (11) and electric mover (12),
Each linear electromagnetic buffer comprises buffer stator (21) and buffer mover (22),
The fixing respectively buffer stator (21) in the motion starting point of motor stator (11) and exercise end place, buffer stator (21) is positioned at the two ends of electric mover (12) direction of motion,
On two end faces of electric mover (12) and buffer stator (21) opposite side; A fixing respectively buffer mover (22); When electric mover (12) moves; Buffer mover (22) can be inserted into the inner space of two buffer stators (21) respectively, and is positioned at the center of buffer stator (21) inner space;
Buffer stator (21) is made up of hollow type stator yoke (21-1) and stator permanent magnet (21-2), and stator permanent magnet (21-2) is fixed on the inner surface of stator yoke (21-1);
Buffer mover (22) is made up of rare-earth permanent magnet (22-1) and connector (22-2), and rare-earth permanent magnet (22-1) is fixed through the connector (22-2) and the end face of electric mover (12);
Rare-earth permanent magnet (22-1) is the direction of repelling each other with the formed magnetic field force of stator permanent magnet (21-2).
2. high-accuracy high-efficiency rate straight line reciprocating drive according to claim 1; It is characterized in that: said hollow type stator yoke (21-1) is made up of four yoke plates; Said four yoke plates are flat, and said four yoke plates form prismatic space or terrace with edge space, and the cross section of said prism is a rectangle; The axis of the last bottom surface of said terrace with edge overlaps, and the bottom surface of said terrace with edge is relative with buffer mover (22); Said stator permanent magnet (21-2) is two,
On two yoke plate inner surfaces that are oppositely arranged of said stator yoke (21-1) stator permanent magnet (21-2) is set respectively;
Rare-earth permanent magnet (22-1) and connector (22-2) are flat,
The transverse width of stator permanent magnet (21-2) is greater than the transverse width of rare-earth permanent magnet (22-1), and the direction of motion length of stator permanent magnet (21-2) is greater than the direction of motion length of rare-earth permanent magnet (22-1);
The magnetizing direction of stator permanent magnet (21-2) is vertical with the yoke plate at its place, and rare-earth permanent magnet (22-1) is opposite with the magnetizing direction of stator permanent magnet (21-2).
3. high-accuracy high-efficiency rate straight line reciprocating drive according to claim 2 is characterized in that: said two stator permanent magnets (21-2) for up and down relatively or about relatively.
4. high-accuracy high-efficiency rate straight line reciprocating drive according to claim 1; It is characterized in that: said hollow type stator yoke (21-1) is made up of four yoke plates; Said four yoke plates are flat, and said four yoke plates form prismatic space or terrace with edge space, and the cross section of said prism is a rectangle; The axis of the last bottom surface of said terrace with edge overlaps, and the bottom surface of said terrace with edge is relative with buffer mover (22); Said stator permanent magnet (21-2) is four,
A stator permanent magnet (21-2) is set respectively on the every yoke plate of said stator yoke (21-1),
One end surfaces center of connector (22-2) is provided with stem stem (22-21) along the direction of motion, and rare-earth permanent magnet (22-1) socket is fixed on the stem stem (22-21), and said connector (22-2) is rectangle with the direction of motion cross section of rare-earth permanent magnet (22-1),
The transverse width of every stator permanent magnet (21-2) greater than with the transverse width of the rare-earth permanent magnet (22-1) of its opposite side, the direction of motion length of stator permanent magnet (21-2) is greater than the direction of motion length of rare-earth permanent magnet (22-1);
Stator permanent magnet (21-2) all adopts parallel magnetization, and its magnetizing direction is vertical with the yoke plate at its place, and the homopolarity of all stator permanent magnets (21-2) is inside, and rare-earth permanent magnet (22-1) is opposite with the magnetizing direction of stator permanent magnet (21-2).
5. high-accuracy high-efficiency rate straight line reciprocating drive according to claim 1; It is characterized in that: the inner space of said hollow type stator yoke (21-1) is cylindrical or truncated cone-shaped; The bottom surface of said truncated cone-shaped hollow type stator yoke (21-1) and buffer mover (22) are relative; The madial wall of the profile of stator permanent magnet (21-2) and hollow type stator yoke (21-1) is complementary, and is fixed on the madial wall of this hollow type stator yoke (21-1)
One end surfaces center of connector (22-2) is provided with stem stem (22-21) along the direction of motion, and rare-earth permanent magnet (22-1) socket is fixed on the stem stem (22-21), and said connector (22-2) is circle with the direction of motion cross section of rare-earth permanent magnet (22-1),
Stator permanent magnet (21-2) adopts radial magnetizing, and the magnetizing direction of the magnetizing direction of stator permanent magnet (21-2) and rare-earth permanent magnet (22-1) is opposite.
6. according to claim 2,3,4 or 5 described high-accuracy high-efficiency rate straight line reciprocating drives; It is characterized in that: said high-accuracy high-efficiency rate straight line reciprocating drive also comprises 2n linear electromagnetic buffer; Wherein n is a positive integer; The motion starting point of motor stator (11) and exercise end place are fixed with n+1 linear electromagnetic buffer respectively, and said n+1 linear electromagnetic buffer is connected in parallel.
7. according to claim 2,3,4 or 5 described high-accuracy high-efficiency rate straight line reciprocating drives, it is characterized in that: said electric mover (12) adopts air-float guide rail support, Magnetically suspended guide rail to support or mechanical line slideway supports.
8. high-accuracy high-efficiency rate straight line reciprocating drive according to claim 2; It is characterized in that: the rare-earth permanent magnet (22-1) of said each buffer mover (22) is two; The upper and lower surfaces of said connector (22-2) forms a shoulder respectively, and said two shoulder places embed respectively and a fixing rare-earth permanent magnet (22-1);
The magnetizing direction of said two rare-earth permanent magnets (22-1) is identical.
9. according to claim 2,3,4 or 5 described high-accuracy high-efficiency rate straight line reciprocating drives, it is characterized in that: said linear electric motors are a cover winding or overlap winding more.
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| CN2010105227297A CN101976927B (en) | 2010-10-28 | 2010-10-28 | High-precision efficient straight reciprocating driving system |
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| CN2010105227297A CN101976927B (en) | 2010-10-28 | 2010-10-28 | High-precision efficient straight reciprocating driving system |
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| CN101976927B true CN101976927B (en) | 2012-07-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102632491B (en) * | 2012-05-14 | 2014-02-26 | 青岛同日电机有限公司 | Full-enclosed type three-dimensional direct-driving motor platform device |
| CN105750387B (en) * | 2016-05-13 | 2018-10-26 | 苏州飞华铝制工业有限公司 | A kind of horizontal punching press assembly line |
| CN106026609B (en) * | 2016-05-13 | 2018-07-03 | 中南大学 | A kind of voice coil motor |
| CN109149895B (en) * | 2018-10-08 | 2019-08-02 | 哈尔滨工业大学 | A kind of novel vibration motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4542311A (en) * | 1983-12-27 | 1985-09-17 | North American Philips Corporation | Long linear stroke reciprocating electric machine |
| CN1599213A (en) * | 2004-08-20 | 2005-03-23 | 清华大学 | Permanent-magnet synchronous planar motor |
| CN1675818A (en) * | 2002-08-20 | 2005-09-28 | 株式会社安川电机 | Coreless linear motor |
| CN101009455A (en) * | 2006-12-12 | 2007-08-01 | 大连交通大学 | Long range big-push force permanent-magnet brushless linear DC motor |
-
2010
- 2010-10-28 CN CN2010105227297A patent/CN101976927B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4542311A (en) * | 1983-12-27 | 1985-09-17 | North American Philips Corporation | Long linear stroke reciprocating electric machine |
| CN1675818A (en) * | 2002-08-20 | 2005-09-28 | 株式会社安川电机 | Coreless linear motor |
| CN1599213A (en) * | 2004-08-20 | 2005-03-23 | 清华大学 | Permanent-magnet synchronous planar motor |
| CN101009455A (en) * | 2006-12-12 | 2007-08-01 | 大连交通大学 | Long range big-push force permanent-magnet brushless linear DC motor |
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