CN203929801U - Axle sleeve type permanent magnetism rotating angular acceleration sensor - Google Patents
Axle sleeve type permanent magnetism rotating angular acceleration sensor Download PDFInfo
- Publication number
- CN203929801U CN203929801U CN201420309940.4U CN201420309940U CN203929801U CN 203929801 U CN203929801 U CN 203929801U CN 201420309940 U CN201420309940 U CN 201420309940U CN 203929801 U CN203929801 U CN 203929801U
- Authority
- CN
- China
- Prior art keywords
- winding
- axle sleeve
- rotor
- fixed
- stator core
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
The utility model discloses a kind of axle sleeve type permanent magnetism rotating angular acceleration sensor, comprise output winding, stator core, permanent magnet excitation magnet steel, nonferromagnetic material metal sleeve, rotor winding, rotor core, axle sleeve, front end end cover, front bearing, support, rear bearing and rear end cap; Stator core is fixed in nonferromagnetic material metal sleeve, nonferromagnetic material metal sleeve is fixed in support, permanent magnet excitation magnet steel is embedded in stator core, output winding is embedded in the slot for winding of stator core, axle sleeve outside is fixed in rotor core with one heart, rotor winding is fixed on rotor core outside with one heart, rotor winding outside is fixed in stator core with one heart, rotor integral winding, axle sleeve is fixed in front bearing, rear bearing, and front bearing, rear bearing are fixedly connected with support by front end end cover, rear end cap respectively; The utlity model has higher sensitivity; Another adopt axle sleeve type structure, just can use as long as be enclosed within the rotating shaft outside of rotary system when use, so convenient, installation simply.
Description
Technical field
The utility model relates to a kind of sensor, is specifically related to a kind of axle sleeve type permanent magnetism rotating angular acceleration sensor.
Background technology
Rotation (angle) acceleration analysis is one of the most common measurement in mechanical value measuring, known magneto rotation (angle) acceleration adopts cup-shaped rotor structure, and inner stator adopts overall permanent magnetic steel, because permanent magnetic steel magnetic resistance is very large, quadrature axis direct axis reluctance equates, and the induced potential size being produced in cup-shaped rotor by rotating angular acceleration is limited, so, the electric current that this electromotive force produces and the magnetic flux that produces can be very little, thereby the induced potential producing in output winding can be very little, the sensitivity of sensor is very low, and, sensor adopts connector that sensor is coaxially connected with tested rotary system while use.
Summary of the invention
The utility model is for the deficiencies in the prior art, proposed a kind of axle sleeve type permanent magnetism rotating angular acceleration sensor, it compared with prior art has higher sensitivity, the in the situation that of same rotating angular acceleration when output umber of turn is when constant, in output winding, can export larger induced potential,, when use, sensor is directly enclosed within the rotating shaft of rotary system meanwhile, be more convenient for using, and, without cup-shaped rotor, make processing simpler.
A kind of axle sleeve type permanent magnetism rotating angular acceleration sensor, comprises output winding, stator core, permanent magnet excitation magnet steel, nonferromagnetic material metal sleeve, rotor core, rotor winding, axle sleeve, front end end cover, front bearing, support, rear bearing and rear end cap; Described stator core is fixed in nonferromagnetic material sleeve, nonferromagnetic material sleeve is fixed in support, permanent magnet excitation magnet steel is embedded in stator core, output winding is embedded in the slot for winding of stator core, axle sleeve outside is fixed in rotor core with one heart, rotor winding is fixed on rotor core outside with one heart, rotor winding outside is fixed in stator core with one heart, rotor winding adopts thickness circular tubular entirety winding, axle sleeve is fixed in front bearing, rear bearing, and front bearing, rear bearing are fixedly connected with support by front end end cover, rear end cap respectively;
The axis of described output winding and the magnetic field axis of permanent magnetic steel are mutually orthogonal, and the magnetic resistance of the output axis magnetic circuit of winding and the magnetic field axis magnetic circuit of permanent magnetic steel is different.
Described axle sleeve, front end end cover, support, rear end cap adopt ferromagnetic material to make, and stator core adopts siliconized plate, and described rotor winding adopts copper or aluminium.
Described output winding adopts copper magnet wire.
Beneficial effect: in the utility model, due to d-axis, the quadrature-axis reluctance difference of sensor iron circuit, so compared with situation about all being formed by permanent magnetic steel with magnetic circuit material, there is higher sensitivity; Another adopt axle sleeve type structure, just can use as long as be enclosed within the rotating shaft outside of rotary system when use, so convenient, installation simply; Rotor does not adopt cup-shaped rotor, makes processing simpler, and cost declines; Rotor winding adopts thickness circular tubular entirety winding instead of adopts common cage-type rotor winding, makes to export in winding, to produce induced electricity potential energy and overcome the noise that cage-type rotor winding brings.
Brief description of the drawings
Fig. 1 is the utility model one-piece construction schematic diagram;
Fig. 2 is the sectional view along rotor shaft direction in support;
Fig. 3 is Fig. 2 A-A cut-open view.
Embodiment
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of axle sleeve type permanent magnetism rotating angular acceleration sensor, comprises output winding 1, stator core 2, rotor winding 3, permanent magnet excitation magnet steel 4, rotor core 5, axle sleeve 6, front end end cover 7, front bearing 8, support 9, rear bearing 10 and rear end cap 11, nonferromagnetic material sleeve 12, described stator core 2 is fixed on nonferromagnetic material metal sleeve 12, nonferromagnetic material metal sleeve 12 is fixed in support 9, permanent magnet excitation magnet steel 4 is embedded in stator core 2, output winding 1 is embedded in the slot for winding of stator core, axle sleeve 6 outsides are fixed in rotor core 5 with one heart, rotor winding 3 is fixed on rotor core outside with one heart, rotor winding outside is fixed in stator core with one heart, rotor winding adopts thickness circular tubular entirety winding, axle sleeve is fixed on front bearing 8, in rear bearing 10, front bearing, rear bearing is respectively by front end end cover 7, rear end cap 11 is fixedly connected with support 9,
The axis of described output winding and the magnetic field axis of permanent magnet excitation magnet steel are mutually orthogonal, and the magnetic resistance of the output axis magnetic circuit of winding and the magnetic field axis magnetic circuit of permanent magnetic steel is different.
When concrete use, sensor sleeve, outside the rotating shaft of rotary system, support and rotary system end cap are fixed, and the axle rotor driven of rotary system rotates together.Make permanent rotary speed movement as the transmission shaft of system under test (SUT), rotor is also made permanent rotary speed movement, in rotor winding, produces electromotive force, and this electromotive force produces rotor current, and rotor current produces magnetic field, now, this magnetic field magnetic potential constant amplitude, stator output winding electromotive force is zero, as the transmission shaft of system under test (SUT) is made non-permanent rotary speed movement, there is rotation (angle) acceleration, rotor is also made non-permanent rotary speed movement, because excitation field is constant, the electromotive force size producing in rotor winding is corresponding with the rotating speed of the non-permanent rotary speed movement of system, this electromotive force produces rotor current, thereby in rotor, produce time dependent current component, this rotor current component produces also temporal evolution of magnetic field magnetic potential amplitude, this time dependent magnetic field of magnetic potential amplitude and stator output winding interlinkage, thereby produce output potential in stator output winding, this output potential is corresponding with the rotation speed change of system.And, because direct axis reluctance is little more than quadrature-axis reluctance, so, the induction electromotive force situation identical with quadrature axis d-axis magnetic circuit reluctance and that be all made up of permanent magnetic steel producing in output winding is compared, corresponding to same output umber of turn, same magnetic field intensity, same rotating angular acceleration, this sensor can be exported larger output electromotive force, i.e. sensitivity improves.
Claims (5)
1. axle sleeve type permanent magnetism rotating angular acceleration sensor, comprises output winding, stator core, permanent magnet excitation magnet steel, nonferromagnetic material metal sleeve, rotor core, rotor winding, axle sleeve, front end end cover, front bearing, support, rear bearing and rear end cap, it is characterized in that: described stator core is fixed in nonferromagnetic material metal sleeve, nonferromagnetic material metal sleeve is fixed in support, permanent magnet excitation magnet steel is embedded in stator core, output winding is embedded in the slot for winding of stator core, axle sleeve outside is fixed in rotor core with one heart, rotor winding is fixed on rotor core outside with one heart, rotor winding outside is fixed in stator core with one heart, rotor winding adopts thickness circular tubular entirety winding, axle sleeve is fixed on front bearing, in rear bearing, front bearing, rear bearing passes through respectively front end end cover, rear end cap is fixedly connected with support,
The axis of described output winding and the magnetic field axis of permanent magnet excitation magnet steel are mutually orthogonal, and the magnetic resistance of the output axis magnetic circuit of winding and the magnetic field axis magnetic circuit of permanent magnetic steel is different.
2. axle sleeve type permanent magnetism rotating angular acceleration sensor according to claim 1, is characterized in that: described axle sleeve, front end end cover, support, rear end cap adopt ferromagnetic material to make.
3. axle sleeve type permanent magnetism rotating angular acceleration sensor according to claim 1, is characterized in that: described stator core adopts siliconized plate.
4. axle sleeve type permanent magnetism rotating angular acceleration sensor according to claim 1, is characterized in that: described rotor winding adopts copper or aluminium.
5. axle sleeve type permanent magnetism rotating angular acceleration sensor according to claim 1, is characterized in that: described output winding adopts copper magnet wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420309940.4U CN203929801U (en) | 2014-06-11 | 2014-06-11 | Axle sleeve type permanent magnetism rotating angular acceleration sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420309940.4U CN203929801U (en) | 2014-06-11 | 2014-06-11 | Axle sleeve type permanent magnetism rotating angular acceleration sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203929801U true CN203929801U (en) | 2014-11-05 |
Family
ID=51825599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420309940.4U Withdrawn - After Issue CN203929801U (en) | 2014-06-11 | 2014-06-11 | Axle sleeve type permanent magnetism rotating angular acceleration sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203929801U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034917A (en) * | 2014-06-11 | 2014-09-10 | 杭州电子科技大学 | Shaft sleeve type permanent magnet rotation angle acceleration sensor |
| CN108398569A (en) * | 2018-02-26 | 2018-08-14 | 杭州电子科技大学 | Roller permanent magnetism rotary acceleration sensors and its measurement method and assembly method |
-
2014
- 2014-06-11 CN CN201420309940.4U patent/CN203929801U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034917A (en) * | 2014-06-11 | 2014-09-10 | 杭州电子科技大学 | Shaft sleeve type permanent magnet rotation angle acceleration sensor |
| CN108398569A (en) * | 2018-02-26 | 2018-08-14 | 杭州电子科技大学 | Roller permanent magnetism rotary acceleration sensors and its measurement method and assembly method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104034917B (en) | A kind of axle sleeve type permanent magnetism rotating angular acceleration sensor | |
| CN103731077B (en) | The checkout gear of motor rotor position and rotating speed and method | |
| CN101299048B (en) | Rotating angular acceleration sensor | |
| EP2078931A3 (en) | Rotational angle detection device and method for permanent magnet dynamo-electric machine and electric power steering device | |
| CN105634235B (en) | Axle sleeve generator that is a kind of while measuring angular velocity of rotation, angular acceleration | |
| EP3134741A1 (en) | Rotational sensing with inductive sensor and rotating axial target surface | |
| WO2009099300A3 (en) | Electric motor | |
| CN103986397B (en) | Brshless DC motor permanent magnet fault detection method | |
| CN105634234B (en) | A kind of brushless DC tachometer generator | |
| CN203929801U (en) | Axle sleeve type permanent magnetism rotating angular acceleration sensor | |
| CN110224555B (en) | Low-magnetic-resistance magnetoelectric device | |
| CN105610289A (en) | Alternating current/direct current tachogenerator | |
| CN106526333B (en) | A method of obtaining permanent magnet synchronous motor quadrature axis and d-axis inductance | |
| CN104483510B (en) | A kind of measuring method for measuring rotary acceleration sensors | |
| CN109341913A (en) | A kind of torque measuring device | |
| CN105467150A (en) | Portable power generator for measuring rotation angular velocity and angular acceleration simultaneously | |
| CN106248996B (en) | A kind of AC servo angle measurement acceleration unit | |
| CN204065130U (en) | D-axis and quadrature-axis reluctance permanent magnetism rotating angular acceleration sensor not etc. | |
| CN103270688B (en) | For the method determining the position of the armature of motor | |
| JP2015152473A (en) | Detector | |
| CN104034916B (en) | The permanent magnetism rotating angular acceleration sensor that a kind of d-axis and quadrature-axis reluctance do not wait | |
| CN204330808U (en) | A kind of measurement rotary acceleration sensors | |
| CN103618410B (en) | A kind of generator system | |
| CN103270687B (en) | For measuring the equipment of the rotor anglec of rotation position of motor | |
| EP2337216A3 (en) | Dual purpose permanent magnets for a speed sensor and a generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141105 Effective date of abandoning: 20160824 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20141105 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |