CN107437882A - A kind of stepping motor - Google Patents

A kind of stepping motor Download PDF

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Publication number
CN107437882A
CN107437882A CN201710722491.4A CN201710722491A CN107437882A CN 107437882 A CN107437882 A CN 107437882A CN 201710722491 A CN201710722491 A CN 201710722491A CN 107437882 A CN107437882 A CN 107437882A
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CN
China
Prior art keywords
rotor
casing
gap
disappears
screw mandrel
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.)
Pending
Application number
CN201710722491.4A
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Chinese (zh)
Inventor
陈寅
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.)
Ningbo Dingxiang Electric Appliance Manufacturing Co Ltd
Original Assignee
Ningbo Dingxiang Electric Appliance Manufacturing Co Ltd
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 Ningbo Dingxiang Electric Appliance Manufacturing Co Ltd filed Critical Ningbo Dingxiang Electric Appliance Manufacturing Co Ltd
Priority to CN201710722491.4A priority Critical patent/CN107437882A/en
Publication of CN107437882A publication Critical patent/CN107437882A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K37/00Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
    • H02K37/24Structural association with auxiliary mechanical devices

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The invention provides a kind of stepping motor, and it includes:Casing;Rotor, by axial limiting on casing;Stator, it is fixedly mounted on casing and is placed in rotor periphery;Screw mandrel, axially penetrate through casing and be connected with rotor threads, the rotor, which circumferentially rotates, can drive screw mandrel axial displacement;Gap-eliminating structure, the gap nut that disappears of casing side, the retainer ring for fixing disappear gap nut and rotor, the spring for being connected to retainer ring between the gap nut that disappears are placed in outside screw mandrel including being set in, the retainer ring is spacing by alignment pin and the gap nut that disappears, and the spring is set in outside screw mandrel and is placed in the gap nut interior that disappears.This stepping motor, which has, to be reduced the wasting of resources, can improve the advantages of positioning precision and service life.

Description

A kind of stepping motor
Technical field
The invention belongs to field of mechanical technique, is related to a kind of stepping motor.
Background technology
In the prior art, should there be cylinder-driven structure, cylinder in the field such as medical treatment, manipulator, 3D printer, Aero-Space The problem of transmission link generally existing positioning precision is not high and service life is short, original cylinder-driven must be equipped with air pump, also greatly Improve production cost greatly;On the other hand, the present invention devises a kind of stepping electricity for being used for Linear transmission, positioning, transmission operating position Motivation structure originally used the link of cylinder-driven with replacement.
In summary, it is necessary to design a kind of stepping motor that can improve positioning precision and service life.
The content of the invention
The purpose of the present invention is above mentioned problem be present for existing technology, it is proposed that one kind reduces the wasting of resources, can carried The stepping motor of high position precision and service life.
The purpose of the present invention can be realized by following technical proposal:A kind of stepping motor, including:
Casing;
Rotor, by axial limiting on casing;
Stator, it is fixedly mounted on casing and is placed in rotor periphery;
Screw mandrel, axially penetrate through casing and be connected with rotor threads, the rotor, which circumferentially rotates, can drive screw mandrel axial displacement;
Gap-eliminating structure, including be set in be placed in outside screw mandrel casing side the gap nut that disappears, for it is fixed disappear gap nut and The retainer ring of rotor, the spring for being connected to retainer ring between the gap nut that disappears, the retainer ring pass through alignment pin and the gap nut that disappears Spacing, the spring is set in outside screw mandrel and is placed in the gap nut interior that disappears.
As a further improvement on the present invention, hollow connecting shaft, the connecting shaft axially are inserted with the middle part of the rotor With being provided with the female thread structure being connected with wire rod thread inside rotor correspondence position, described connecting shaft one end is limited by chassis axial Position, the other end stretch into the gap nut and by axial limiting of disappearing through casing, and the Fixing shrink ring is located at connecting shaft correspondence position, described Screw mandrel axially penetrates through connecting shaft.
As the further improvement of the present invention, a point bearing for row rotor both sides, the company are arranged with the connecting shaft Spindle is connected by the bearing with casing.
As the further improvement of the present invention, the casing is fastened by drive end bearing bracket and rear end cap and formed, the stator with Casing structure is adapted to and is close-coupled between drive end bearing bracket and rear end cap, and three is fixed together.
As the further improvement of the present invention, the rotor is by two iron cores laminated and is clamped between two iron cores Magnetic rings composition.
As a further improvement on the present invention, described disappear has gap between gap nut and casing.
As a further improvement on the present invention, the retainer ring submerges the gap nut interior that disappears completely, and alignment pin is arranged to Symmetrical a pair, the alignment pin gap nut and insert retainer ring along perpendicular to screw mandrel axial direction through disappearing.
Based on above-mentioned technical proposal, the embodiment of the present invention can at least produce following technique effect:This stepping motor is whole Body structure can replace the occasion cylinder-driven link such as original manipulator, reduce the wasting of resources, such as motor operating power consumption about 5W, Cylinder-driven energy consumption is in 200W, and motor drive position can be realized that multistage multiple speed is complicated by host computer and be run, and gas Cylinder then can not;The positioning physical life of cylinder is typically within 2 years, and typically at 10 years or so, high makes the service life of motor The optimization of electromechanics structure of the present invention is depended on the life-span, is eliminated by motor rear portion backlass, on the one hand can improved Positioning precision, operation noise is reduced, on the other hand can greatly improve service life, specifically, the present invention passes through the gap spiral shell that disappears Female, spring and alignment pin eliminate the axial gap of screw mandrel and rotor position internal thread, so as to reach the principle for the gap that disappears;The gap that disappears nut Fixed position corresponding with rotor is integrally connected by retainer ring, can so allow the gap nut that disappears to serve as the function of trimming hand wheel again, Above-mentioned alignment pin is used to dock and spacing retainer ring, the gap that disappears nut.
Brief description of the drawings
The embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings, wherein:
Fig. 1 is the structural representation of a preferred embodiment of the present invention.
Fig. 2 is the sectional view of a preferred embodiment of the present invention.
Fig. 3 is the explosive view of a preferred embodiment of the present invention.
Fig. 4 is the explosive view at another visual angle of a preferred embodiment of the present invention.
In figure, 10, casing;11st, drive end bearing bracket;12nd, rear end cap;20th, rotor;30th, stator;40th, screw mandrel;51st, the gap that disappears nut; 52nd, retainer ring;53rd, spring;54th, alignment pin;60th, connecting shaft;70th, bearing;80th, screw.
Embodiment
It is the specific embodiment of the present invention and with reference to accompanying drawing below, technical scheme is further described, But the present invention is not limited to these embodiments.
Technical scheme provided by the invention is illustrated in more detail with reference to Fig. 1 to Fig. 4.
As shown in Figures 1 to 4, this stepping motor includes:
Casing 10;
Rotor 20, by axial limiting on casing 10;
Stator 30, it is fixedly mounted on casing 10 and is placed in the periphery of rotor 20;
Screw mandrel 40, it is a kind of elongated rod shape screw-rod structure, it axially penetrates through casing 10 and is threadedly coupled with rotor 20, described turn Son 20, which circumferentially rotates, can drive the axial displacement of screw mandrel 40;I.e. the position of rotor 20 has female thread structure, and screw mandrel 40 passes through rotor 20 And it is threadedly coupled with rotor 20;
Gap-eliminating structure, including be set in and the gap nut 51 that disappears of the side of casing 10 is placed in outside screw mandrel 40, for the fixed gap that disappears The retainer ring 52 of nut 51 and rotor 20, the spring 53 for being connected to retainer ring 52 between the gap nut 51 that disappears, the retainer ring 52 Spacing by alignment pin 54 and the gap nut 51 that disappears, the spring 53 is set in outside screw mandrel 40 inside the gap nut 51 that is placed in disappearing.
The present invention protects a kind of stepping motor, for Linear transmission, positioning, transmits operating position, can be applied to machinery Original link for using cylinder-driven is replaced in the occasions such as hand, positioning precision is substantially increased, reduces operation noise, because motor Transmission only needs corresponding control panel to can be achieved with the corresponding method of operation.
In the present case, amplifying circuit controlled motor can be controlled by single-chip microcomputer.
This stepping motor integral structure layout is compact, reasonable, during work, motor can by single-chip microcomputer and host computer or Remote control, the back and forth movement of simple realization screw mandrel 40, is rotated by rotor 20, and the inside of rotor 20 carries internal thread, by screw mandrel 40 One is fixed on the position for needing to be driven, so as to realize the displacement of workpiece or position.
This stepping motor structure can replace originally using cylinder-driven link, reduce the wasting of resources, such as motor work energy About 5W is consumed, cylinder-driven energy consumption is in 200W, and motor drive position can realize the complicated fortune of multistage multiple speed by host computer OK, and cylinder then can not.
The positioning physical life of cylinder is typically within 2 years, and typically at 10 years or so, high makes the service life of motor The optimization of electromechanics structure of the present invention is depended on the life-span, is eliminated by motor rear portion backlass, on the one hand can improved Positioning precision, operation noise is reduced, on the other hand can greatly improve service life.
Specifically, the present invention is eliminated in screw mandrel 40 and the position of rotor 20 by the gap nut 51 that disappears, spring 53 and alignment pin 54 The axial gap of screw thread, so as to reach the principle for the gap that disappears;The gap that disappears nut 51 passes through retainer ring 52 with 20 corresponding fixed position of rotor It is integrally connected, can so allows the gap nut 51 that disappears to serve as the function of trimming hand wheel again, above-mentioned alignment pin 54 is used to dock and spacing Retainer ring 52, the gap that disappears nut 51.
In the present invention, there is gap between the gap that disappears nut 51 and casing 10, avoid component interference, also ensure the gap nut that disappears Reliability during 51 regulation.
Further, to ensure docking for gap-eliminating structure and rotor 20, the connection of screw mandrel 40 and rotor 20, and rotor 20 Axial limiting effect.
The middle part of preferred rotor 20 is axially inserted with hollow connecting shaft 60, the connecting shaft 60 with the correspondence position of rotor 20 Portion is provided with the female thread structure being threadedly coupled with screw mandrel 40, and described one end of connecting shaft 60 is worn by the axial limiting of casing 10, the other end Cross casing 10 and stretch into and disappear gap nut 51 and the correspondence position of connecting shaft 60, the silk are set in by axial limiting, the retainer ring 52 Bar 40 axially penetrates through connecting shaft 60, drives connecting shaft 60 to rotate and then drive screw mandrel axial action when rotor rotates.
Further, a point bearing 70 for the both sides of row rotor 20 is preferably arranged with connecting shaft 60, the connecting shaft 60 is logical The bearing 70 is crossed to be connected with casing 10.
Bearing 70 in the present invention not only ensures the reliability that connecting shaft 60 circumferentially rotates, and is also corresponded to on casing 10 spacing Respective outer side edges, ensure connecting shaft 60 and the reliability of the axial limiting of rotor 20, avoid axial float, rotor 20 circumferentially rotates flat Surely.
Preferably, retainer ring 52 is submerged inside the gap nut 51 that disappears completely, and alignment pin 54 is arranged to symmetrical a pair, The alignment pin 54 gap nut 51 and inserts retainer ring 52 along perpendicular to the axial direction of screw mandrel 40 through disappearing, to ensure limit effect Eliminated with the axial gap of the position internal thread of rotor 20 so that the gap that disappears nut 51 is relatively reliable when being used as trimming hand wheel.
To improve the reasonability of the compactedness of topology layout and space layout, it is preferable that casing 10 is by drive end bearing bracket 11 with after End cap 12 is fastened and formed, and the stator 30 and the physical fit of casing 10 are simultaneously close-coupled between drive end bearing bracket 11 and rear end cap 12, And three is fixed together.
It is preferred that drive end bearing bracket 11, stator 30 and rear end cap 12 are fixed together by screw 80 and form overall fixed structure (i.e. relative position is fixed), rotor 20 are located in stator 30, and screw 80 sequentially passes through drive end bearing bracket 11, stator 30 and rear end cap 12.
Further, the overall structure after above-mentioned drive end bearing bracket 11, rear end cap 12 and stator 30 assemble is preferably square body, on State four that screw 80 is preferably arranged to be loaded on four edges respectively.
It is worth mentioning that:Gap-eliminating structure in this case can be placed in the outside of rear end cap 12, can also be placed in the outside of drive end bearing bracket 11, Its position outside of rear end cap 12 i.e. as depicted is not limited to.
To ensure that the reliability of work and rotor 20, stator 30 closely coordinate, preferred rotor 20 is laminated by two Iron core and be clamped between two iron cores magnetic rings composition.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.

Claims (7)

  1. A kind of 1. stepping motor, it is characterised in that:Including:
    Casing;
    Rotor, by axial limiting on casing;
    Stator, it is fixedly mounted on casing and is placed in rotor periphery;
    Screw mandrel, axially penetrate through casing and be connected with rotor threads, the rotor, which circumferentially rotates, can drive screw mandrel axial displacement;
    Gap-eliminating structure, including be set in and the gap nut that disappears of casing side is placed in outside screw mandrel, for fixed disappear gap nut and rotor Retainer ring, the spring that is connected to retainer ring between the gap nut that disappears, the retainer ring is spacing by alignment pin and the gap nut that disappears, The spring is set in outside screw mandrel and is placed in the gap nut interior that disappears.
  2. A kind of 2. stepping motor according to claim 1, it is characterised in that:Axially it is inserted with the middle part of the rotor hollow Connecting shaft, be provided with the female thread structure being connected with wire rod thread, the connection inside the connecting shaft and rotor correspondence position Axle one end is spacing by chassis axial, and the other end is stretched into disappear through casing and gap nut and is located at by axial limiting, the Fixing shrink ring Connecting shaft correspondence position, the screw mandrel axially penetrate through connecting shaft.
  3. A kind of 3. stepping motor according to claim 2, it is characterised in that:A point row rotor is arranged with the connecting shaft The bearing of both sides, the connecting shaft are connected by the bearing with casing.
  4. A kind of 4. stepping motor according to claim 1, it is characterised in that:The casing is by drive end bearing bracket and rear end cover buckle Conjunction forms, and the stator is adapted to and is close-coupled between drive end bearing bracket and rear end cap with casing structure, and three is fixed together.
  5. A kind of 5. stepping motor according to claim 1, it is characterised in that:The rotor is by two iron cores laminated And the magnetic rings composition being clamped between two iron cores.
  6. A kind of 6. stepping motor according to claim 1, it is characterised in that:Described disappear has between gap nut and casing Gap.
  7. A kind of 7. stepping motor according to claim 1, it is characterised in that:The retainer ring submerges the gap nut that disappears completely Inside, and alignment pin is arranged to symmetrical a pair, the alignment pin passes through the gap nut that disappears along perpendicular to screw mandrel axial direction And insert retainer ring.
CN201710722491.4A 2017-08-22 2017-08-22 A kind of stepping motor Pending CN107437882A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710722491.4A CN107437882A (en) 2017-08-22 2017-08-22 A kind of stepping motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710722491.4A CN107437882A (en) 2017-08-22 2017-08-22 A kind of stepping motor

Publications (1)

Publication Number Publication Date
CN107437882A true CN107437882A (en) 2017-12-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710722491.4A Pending CN107437882A (en) 2017-08-22 2017-08-22 A kind of stepping motor

Country Status (1)

Country Link
CN (1) CN107437882A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111135021A (en) * 2020-01-21 2020-05-12 橙象医疗科技(广州)有限公司 Power source transmission structure
CN112886771A (en) * 2021-02-02 2021-06-01 宁波鼎祥电器制造有限公司 Self-cleaning stepping motor

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3041034U (en) * 1997-02-28 1997-09-05 日本サーボ株式会社 Laminated core inner rotor type rotating electric machine
US20040250637A1 (en) * 2003-05-26 2004-12-16 Yutaka Hosokai Anti-backlash nut
US20080115605A1 (en) * 2006-11-16 2008-05-22 Erikson Kenneth W Motor assembly with anti-backlash nut and thermal insensitive mechanism
CN202798417U (en) * 2012-07-26 2013-03-13 常州市金杯控制电机有限公司 Hybrid stepping-motor rotor
CN204741396U (en) * 2015-05-20 2015-11-04 常州市鼎智机电有限公司 Link up a linear stepping motor
CN204794541U (en) * 2015-07-09 2015-11-18 常州市鼎智机电有限公司 Compact lead screw motor
JP2016032422A (en) * 2014-07-30 2016-03-07 ミネベア株式会社 Inner rotor motor
CN206036160U (en) * 2016-08-29 2017-03-22 常州市三协电机电器有限公司 Screw thread interstitial structure is eliminated to lead screw motor
CN206117336U (en) * 2016-10-31 2017-04-19 常州富兴机电有限公司 High -speed low inertia stepping motor rotor that is just reversing
CN207098914U (en) * 2017-08-22 2018-03-13 宁波鼎祥电器制造有限公司 A kind of stepping motor

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3041034U (en) * 1997-02-28 1997-09-05 日本サーボ株式会社 Laminated core inner rotor type rotating electric machine
US20040250637A1 (en) * 2003-05-26 2004-12-16 Yutaka Hosokai Anti-backlash nut
US20080115605A1 (en) * 2006-11-16 2008-05-22 Erikson Kenneth W Motor assembly with anti-backlash nut and thermal insensitive mechanism
CN202798417U (en) * 2012-07-26 2013-03-13 常州市金杯控制电机有限公司 Hybrid stepping-motor rotor
JP2016032422A (en) * 2014-07-30 2016-03-07 ミネベア株式会社 Inner rotor motor
CN204741396U (en) * 2015-05-20 2015-11-04 常州市鼎智机电有限公司 Link up a linear stepping motor
CN204794541U (en) * 2015-07-09 2015-11-18 常州市鼎智机电有限公司 Compact lead screw motor
CN206036160U (en) * 2016-08-29 2017-03-22 常州市三协电机电器有限公司 Screw thread interstitial structure is eliminated to lead screw motor
CN206117336U (en) * 2016-10-31 2017-04-19 常州富兴机电有限公司 High -speed low inertia stepping motor rotor that is just reversing
CN207098914U (en) * 2017-08-22 2018-03-13 宁波鼎祥电器制造有限公司 A kind of stepping motor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111135021A (en) * 2020-01-21 2020-05-12 橙象医疗科技(广州)有限公司 Power source transmission structure
CN112886771A (en) * 2021-02-02 2021-06-01 宁波鼎祥电器制造有限公司 Self-cleaning stepping motor
CN112886771B (en) * 2021-02-02 2022-03-25 宁波鼎祥电器制造有限公司 Self-cleaning stepping motor

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