CN115694058A - Miniature electric linear transmission device - Google Patents
Miniature electric linear transmission device Download PDFInfo
- Publication number
- CN115694058A CN115694058A CN202211435506.6A CN202211435506A CN115694058A CN 115694058 A CN115694058 A CN 115694058A CN 202211435506 A CN202211435506 A CN 202211435506A CN 115694058 A CN115694058 A CN 115694058A
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- China
- Prior art keywords
- ball screw
- guide rail
- rotor
- linear actuator
- miniature electric
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- 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.)
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- 230000005540 biological transmission Effects 0.000 title abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 6
- 239000010935 stainless steel Substances 0.000 claims abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 15
- 238000004804 winding Methods 0.000 claims description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
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Abstract
The invention discloses a miniature electric linear transmission device, which comprises: a guide rail; the sliding block is connected with the guide rail in a sliding manner; the driving mechanism is fixedly connected with the guide rail and comprises a nut rotor and a hollow rotor which are made of stainless steel materials; one end of the ball screw is fixedly connected with the sliding block, and the driving mechanism drives the ball screw to drive the sliding block to reciprocate along the guide rail. The nut rotor and the hollow rotor are integrated, a connecting part is not needed, so that the space of the linear module is more simplified, the structure is compact, the operation precision is higher, and the linear module is suitable for small and high-precision mechanisms. Be different from the SCM45H material that prior art generally adopted, adopt the SCM45H material, can make the magnetic conductivity of rotor, reduced the influence to the motor power transmission by a wide margin, so all adopt the nut to link up out outward on the existing market, can not make the integral type.
Description
Technical Field
The invention relates to the technical field of miniature linear modules, in particular to a miniature electric linear transmission device.
Background
The linear module has several kinds of calling, is the automation upgrading unit that follows linear guide, ball screw linear transmission mechanism, can realize the straight line of load, curvilinear motion through the combination of each unit, makes the automation of light load more nimble, the location is more accurate, along with the development of linear module, has been widely used in the middle of the various equipment, and the linear module that current application is comparatively extensive has synchronous belt type and ball screw type, linear motor type.
In miniature straight line module field, because the scene that the straight line module was used all is the module of precision equipment, these equipment require each component part to be as small as possible, in order to practice thrift the space, so need multiple functional but the straight line module that the volume is littleer, but because prior art's motor all is the removal through the spiale drive ball screw, the rotor inertia that makes the straight line module like this is big, length itself also can be very long, make the precision reduction of straight line module under such length, the part makes the installation also become complicated in addition many. The SCM45H material that prior art generally adopted adopts SCM45H material, can make the magnetic conductivity of rotor, has reduced the influence to the motor power transmission by a wide margin, so all adopt the nut to link up out outward on the existing market, can not make the integral type.
Disclosure of Invention
The present invention is directed to a micro electric linear actuator, which solves the above problems.
In order to achieve the purpose, the invention provides the following technical scheme: a miniature electric linear actuator comprising:
a guide rail;
the sliding block is connected with the guide rail in a sliding manner;
the driving mechanism is fixedly connected with the guide rail and comprises a nut rotor and a hollow rotor which are made of stainless steel materials;
one end of the ball screw is fixedly connected with the sliding block, and the driving mechanism drives the ball screw to drive the sliding block to reciprocate along the guide rail.
Preferably, the driving mechanism comprises a stator, a front bearing and a rear bearing, the front bearing is arranged at the front end of an inner cavity of the stator, the nut rotor is sleeved with the front bearing, and the rear bearing is sleeved at the rear end of the inner cavity of the stator.
Preferably, the hollow rotor comprises a winding and an iron core, the winding is wound on the iron core, and the iron core and the nut rotor are integrally formed.
Preferably, the slider is L-shaped, the long edge of the slider is connected with the guide rail in a sliding mode, and the short edge of the slider is fixedly connected with the ball screw.
Preferably, one end of the stator is provided with an encoder, and the encoder is movably sleeved with the ball screw.
Preferably, a plurality of nut balls are arranged between the ball screw and the nut rotor.
Preferably, the winding is made of copper wire;
or the winding is made of copper-clad aluminum wires;
or the winding is made of aluminum wires.
Preferably, one end of the ball screw, which is connected with the sliding block, is provided with a limiting block.
Preferably, the ball screw is connected to the slider by a hexagonal screw.
Preferably, the iron core is a stator iron core made of silicon steel sheets.
Compared with the prior art, the invention has the beneficial effects that: the nut rotor and the hollow rotor are integrated, and a connecting part is not needed, so that the space of the linear module is more simplified, the structure is compact, the operation precision is higher, and the linear module is suitable for small and high-precision mechanisms; the nut rotor adopts stainless steel material, is different from the SCM45H material that prior art generally adopted, makes the nut rotor be difficult to thermal treatment, has improved the magnetic conductivity of nut rotor, has reduced the driven influence of motor power by a wide margin.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic side sectional view of the present invention.
In the figure: 1. a guide rail; 2. a slider; 3. a drive mechanism; 31. a nut rotor; 32. a stator; 33. a front bearing; 34. a rear bearing; 35. a nut ball; 36. a winding; 37. an iron core; 4. a ball screw; 41. and a limiting block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a miniature electronic linear transmission, including guide rail 1, slider 2, actuating mechanism 3 and ball screw 4, slider 2 and 1 sliding connection of guide rail, actuating mechanism 3 and 1 fixed connection of guide rail, nut rotor 31 and cavity rotor including stainless steel, nut rotor adopts stainless steel, be different from the SCM45H material of prior art universal adoption, make nut rotor be difficult to heat treatment, the magnetic conductivity of nut rotor has been improved, the driven influence of motor power has been reduced by a wide margin, ball screw 4's one end and slider 2 fixed connection, actuating mechanism 3 drive ball screw 4 drives slider 2 along guide rail 1 reciprocating motion.
In the embodiment provided by the invention, the driving mechanism 3 further comprises a stator 32, a front bearing 33 and a rear bearing 34, the front bearing 33 is arranged at the front end of the inner cavity of the stator 32, the nut rotor 31 is sleeved with the front bearing 32, the rear bearing 33 is sleeved at the rear end of the inner cavity of the stator 32, one end of the stator is provided with an encoder 38, and the encoder 38 is movably sleeved with the ball screw 4.
Specifically, the hollow rotor comprises a winding 36 and an iron core 37, the winding 36 is wound on the iron core 37, the iron core 37 and the nut rotor 31 are integrally formed, the space is simplified, the response speed is high, the winding 36 is made of copper wires or copper-clad aluminum wires or aluminum wires, and the iron core 37 is made of silicon steel sheets.
Specifically, slider 2 is the L type, and slider 2's long limit and 3 sliding connection of guide rail, slider 2's minor face and ball screw 4 fixed connection, and actuating mechanism 3 drive ball screw 4 is rotatory to be stretched out or to contract, and then drives slider 2 along 1 reciprocating sliding of guide rail.
Specifically, a plurality of nut balls 35 are arranged between the ball screw 4 and the nut rotor 31, and the nut balls 35 roll in the groove of the ball screw 4.
Specifically, the end of the ball screw 4 connected with the slider 2 is provided with a limiting block 41, and the ball screw is connected with the slider through a hexagon screw.
It should be noted that, unless otherwise defined, technical terms or scientific terms used herein should have the ordinary meaning as understood by those having ordinary skill in the art to which the present invention belongs. The terms "connected" or "coupled" and the like as used in the description and claims of the present patent application are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object to be described is changed, the relative positional relationships are changed accordingly.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any uses or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the present invention is not limited to the structures that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (10)
1. A miniature electric linear actuator comprising:
a guide rail;
the sliding block is connected with the guide rail in a sliding manner;
the driving mechanism is fixedly connected with the guide rail and comprises a nut rotor and a hollow rotor which are made of stainless steel materials;
one end of the ball screw is fixedly connected with the sliding block, and the driving mechanism drives the ball screw to drive the sliding block to reciprocate along the guide rail.
2. A miniature electric linear actuator as claimed in claim 1, wherein: the driving mechanism comprises a stator, a front bearing and a rear bearing, the front end of an inner cavity of the stator is provided with the front bearing, the nut rotor is sleeved with the front bearing, and the rear bearing is sleeved at the rear end of the inner cavity of the stator.
3. A miniature electric linear actuator as set forth in claim 2 wherein: the hollow rotor comprises a winding and an iron core, the winding is wound on the iron core, and the iron core and the nut rotor are integrally formed.
4. A miniature electric linear actuator as claimed in claim 3, wherein: the slider is the L type, the long limit of slider with guide rail sliding connection, the minor face of slider with ball screw fixed connection.
5. The miniature electric linear actuator of claim 4, wherein: and one end of the stator is provided with an encoder, and the encoder is movably sleeved with the ball screw.
6. The micro electro-kinetic linear actuator of claim 5, wherein: and a plurality of nut balls are arranged between the ball screw and the nut rotor.
7. The micro electro-kinetic linear actuator of claim 6, wherein: the winding is made of copper wires;
or the winding is made of copper-clad aluminum wires;
or the winding is made of aluminum wires.
8. A miniature electric linear actuator as claimed in claim 7, wherein: and a limiting block is arranged at one end of the ball screw connected with the sliding block.
9. A miniature electric linear actuator as set forth in claim 8, wherein: the ball screw is connected with the sliding block through a hexagon screw.
10. A miniature electric linear actuator as claimed in claim 9, wherein: the iron core is a stator iron core made of silicon steel sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211435506.6A CN115694058A (en) | 2022-11-16 | 2022-11-16 | Miniature electric linear transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211435506.6A CN115694058A (en) | 2022-11-16 | 2022-11-16 | Miniature electric linear transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115694058A true CN115694058A (en) | 2023-02-03 |
Family
ID=85053638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211435506.6A Pending CN115694058A (en) | 2022-11-16 | 2022-11-16 | Miniature electric linear transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115694058A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102820730A (en) * | 2012-09-19 | 2012-12-12 | 哈尔滨工业大学 | Permanent magnet brushless direct current linear motor with structure of rotor screw |
| CN202934754U (en) * | 2012-11-19 | 2013-05-15 | 广州数控设备有限公司 | Direct-drive servomotor used for all-electric injection molding machine |
| CN104909209A (en) * | 2015-06-03 | 2015-09-16 | 深圳市沃尔核材股份有限公司 | Winding and wire-arranging device |
| CN206195539U (en) * | 2016-11-22 | 2017-05-24 | 深圳市马太智能科技有限公司 | Motor system is directly driven to high accuracy |
| CN206313598U (en) * | 2017-01-12 | 2017-07-07 | 杭州宇树科技有限公司 | A kind of linear drive apparatus of the high power mass density for simplifying structure |
-
2022
- 2022-11-16 CN CN202211435506.6A patent/CN115694058A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102820730A (en) * | 2012-09-19 | 2012-12-12 | 哈尔滨工业大学 | Permanent magnet brushless direct current linear motor with structure of rotor screw |
| CN202934754U (en) * | 2012-11-19 | 2013-05-15 | 广州数控设备有限公司 | Direct-drive servomotor used for all-electric injection molding machine |
| CN104909209A (en) * | 2015-06-03 | 2015-09-16 | 深圳市沃尔核材股份有限公司 | Winding and wire-arranging device |
| CN206195539U (en) * | 2016-11-22 | 2017-05-24 | 深圳市马太智能科技有限公司 | Motor system is directly driven to high accuracy |
| CN206313598U (en) * | 2017-01-12 | 2017-07-07 | 杭州宇树科技有限公司 | A kind of linear drive apparatus of the high power mass density for simplifying structure |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20230203 |
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| RJ01 | Rejection of invention patent application after publication |