CN209375380U - A kind of magnetic hysteresis device capable of measuring speed - Google Patents
A kind of magnetic hysteresis device capable of measuring speed Download PDFInfo
- Publication number
- CN209375380U CN209375380U CN201920125208.4U CN201920125208U CN209375380U CN 209375380 U CN209375380 U CN 209375380U CN 201920125208 U CN201920125208 U CN 201920125208U CN 209375380 U CN209375380 U CN 209375380U
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- stator
- magnetic
- axle bed
- magnetic pole
- sensitive element
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Abstract
A kind of magnetic hysteresis device capable of measuring speed, including rotor, magnetic pole of the stator；The front end rotation of rotor shaft is arranged in the center of magnetic pole of the stator；The rear end of shaft is fixedly arranged on the center of rotation of axle bed, is coaxially installed with magnetic bowl on axle bed, and the annulus peripheral wall of magnetic bowl protrudes into magnetic pole of the stator clearance fit therewith；Further include photoelectricity measures the structure, is mainly made of detection marker and photo electric sensitive element；It detects marker to be set on the rear end face of axle bed, photo electric sensitive element covers after being fixedly arranged on and corresponds to detection marker setting with shaft eccentric setting, the light transmitting of photo electric sensitive element and receiving end, while photo electric sensitive element and control unit are electrically connected.The utility model smart structural design can accurately and efficiently detect the real-time revolving speed of rotor by the setting of photoelectricity measures the structure, have preferable practical improvement.
Description
Technical field
The utility model relates to hysteresis brakes, and in particular to a kind of measurable magnetic hysteresis device of rotor speed is usually used in having
In the spooling equipment of tension force.
Background technique
Hysteresis brake (referred to as " magnetic hysteresis device ") is a kind of superior Torque Control component, it utilizes magnetic hysteresis principle, passes through
The exciting current size for controlling input generates the torque of needs, and electric current and torque have preferable linear relationship.Magnetic hysteresis device energy
Smooth, stepless adjustable, unrelated with revolving speed direct torque is provided.Other than bearing, without other frictions in system, has and stablize
Reliably, the small, long service life using revolving speed high noisy, the advantages such as maintenance cost is low.
In general, magnetic hysteresis device is made of rotor and magnetic pole of the stator two large divisions.Rotor is made of special hysteresis material, stator
There is certain gap in magnetic pole, rotor rotates in gap.When stator coil is powered, magnetic field is generated in gap, produces rotor
Raw hysteresis effect.However, existing magnetic hysteresis device does not detect the function of rotor speed.
Therefore, above-mentioned the shortcomings of the prior art how is solved, is become as the class to be researched and solved of the utility model
Topic.
Summary of the invention
The purpose of the utility model is to provide a kind of magnetic hysteresis devices capable of measuring speed.
In order to achieve the above objectives, the technical solution adopted in the utility model is:
A kind of magnetic hysteresis device capable of measuring speed, including rotor, magnetic pole of the stator and rear cover are wound with coil in the magnetic pole of the stator；
The rotor includes a shaft, and the front end of the shaft is arranged in the center of the magnetic pole of the stator, and passes through bearing
With magnetic pole of the stator rolling assembling；The rear end of the shaft is fixedly arranged on the center of rotation of an axle bed, is coaxially installed on the axle bed
The annulus peripheral wall of one magnetic bowl, the magnetic bowl protrudes into forward in the magnetic pole of the stator, and clearance fit therewith；The rear cover covers at institute
The periphery of rotor is stated, and is fixedly connected with magnetic pole of the stator；
It wherein, further include photoelectricity measures the structure, which includes detection marker and photo electric sensitive element；
It is described detection marker be set to the axle bed rear end face on, the photo electric sensitive element be fixedly arranged on it is described after cover and with it is described
Shaft eccentric setting, the light transmitting of photo electric sensitive element and receiving end correspond to the detection marker setting, while photoelectricity
Sensing element and a control unit are electrically connected.
Related content in above-mentioned technical proposal is explained as follows:
1. in above scheme, described control unit can be upper PC machine, it is also possible to other classes with processing capacity
Like control device or equipment.
2. in above scheme, the magnetic pole of the stator includes inner stator and external stator, the external stator is sheathed on described default
Sub- outside is simultaneously fixedly connected；
The rear end of the inner stator is coaxially provided with a ring gear structure, and the center of the ring gear structure is equipped with an inner hole, this is interior
Hole wears for the shaft of the rotor and is used；The magnetic bowl of the rotor protrudes between the inner stator and the external stator, and same
When with both clearance fit.
3. in above scheme, the magnetic bowl is made of hysteresis material, such as permanent-magnet alloy.
4. in above scheme, the detection marker is reflecting surface, which includes rotating and alternating with the axle bed
The reflecting region and non-reflecting regions of variation.
The photo electric sensitive element is emitted by light and receiving end is towards reflection surface launching infrared light, and reflecting surface is with axis
When seat rotation, reflecting region and non-reflecting regions alternately change relative to photo electric sensitive element, and photo electric sensitive element will be alternate
Optical signal is converted into pulse electrical signal, and pulse signal is sent to control unit by photo electric sensitive element, is calculated by control unit
When the rotary speed information of lower rotor part.
Alternatively, the detection marker is reflected ray, which is arranged along the diametrical direction of the axle bed rear end face.Institute
Photo electric sensitive element is stated by light transmitting and receiving end towards reflection surface launching infrared light, when reflecting surface is rotated with axle bed
When, light transmitting and receiving end can capture the reflected ray, the pulse signal that photo electric sensitive element will receive with gap
It is sent to control unit, the rotary speed information for working as lower rotor part is calculated by control unit.
Alternatively, the detection marker is reflection point, the reflection point eccentric setting is on the rear end face of the axle bed.It is described
Photo electric sensitive element is emitted by light and receiving end is towards reflection surface launching infrared light, when reflecting surface with axle bed when rotating,
Light transmitting and receiving end can capture the reflection point with gap, and photo electric sensitive element sends the pulse signal received
To control unit, the rotary speed information for working as lower rotor part is calculated by control unit.
The calculation method of described control unit will appreciate that for those skilled in the art, and the mature prior art can be used,
Not this case main points, therefore do not repeat.
5. in above scheme, the reflecting region and the non-reflecting regions are fan-shaped, and the quantity of the two is at least
Two, and alternately on the rear end face that circumferencial direction is arranged in the axle bed.Quantity is more, and pulse frequency is higher, then detects
Precision is higher.
The working principle and advantage of the utility model are as follows:
A kind of magnetic hysteresis device capable of measuring speed of the utility model, including rotor, magnetic pole of the stator；The front end rotation of rotor shaft is worn
In the center of magnetic pole of the stator；The rear end of shaft is fixedly arranged on the center of rotation of axle bed, and magnetic bowl, the circle of magnetic bowl are coaxially installed on axle bed
Peripheral wall protrudes into magnetic pole of the stator clearance fit therewith；It further include photoelectricity measures the structure, mainly by detection marker and photoelectric transfer
Sensing unit composition；Detect marker be set to axle bed rear end face on, photo electric sensitive element covered after being fixedly arranged on and with shaft bias
Setting, the corresponding detection marker setting of the light transmitting of photo electric sensitive element and receiving end, while photo electric sensitive element and control
Unit is electrically connected.
Compared to existing technologies, the utility model smart structural design passes through the setting of photoelectricity measures the structure, Neng Gouzhun
It really and efficiently detects the real-time revolving speed of rotor, there is preferable practical improvement.
Detailed description of the invention
Attached drawing 1 is the schematic diagram of the section structure of the utility model embodiment；
Attached drawing 2 is the decomposition explosion figure of the utility model embodiment.
In the figures above: 1. rear covers；2. coil；3. shaft；4. bearing；5. axle bed；6. magnetic bowl；7. photo electric sensitive element；
8. inner stator；9. external stator；10. ring gear structure；11. inner hole；12. reflecting region；13. non-reflecting regions.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and embodiments:
Embodiment: referring to shown in attached drawing 1,2, a kind of magnetic hysteresis device capable of measuring speed, including rotor, magnetic pole of the stator and rear cover 1, institute
It states and is wound with coil 2 in magnetic pole of the stator.
The rotor includes a shaft 3, and the front end of the shaft 3 is arranged in the center of the magnetic pole of the stator, and passes through axis
Hold 4 and magnetic pole of the stator rolling assembling；The rear end of the shaft 3 is fixedly arranged on the center of rotation of an axle bed 5, coaxial on the axle bed 5
It is installed with a magnetic bowl 6, the annulus peripheral wall of the magnetic bowl 6 protrudes into forward in the magnetic pole of the stator, and clearance fit therewith；The rear cover
1 covers at the periphery of the rotor, and is fixedly connected with magnetic pole of the stator.
It wherein, further include photoelectricity measures the structure, which includes detection marker and photo electric sensitive element
7；The detection marker is set on the rear end face of the axle bed 5, and the photo electric sensitive element 7 is fixedly arranged on the rear cover 1 simultaneously
With 3 eccentric setting of shaft, the light transmitting of photo electric sensitive element 7 and receiving end correspond to the detection marker setting,
Photo electric sensitive element 7 and a control unit are electrically connected simultaneously.Described control unit can be upper PC machine, be also possible to other
Similar control device or equipment with processing capacity.
Wherein, the magnetic pole of the stator includes inner stator 8 and external stator 9, and the external stator 9 is sheathed on outside the inner stator 8
Portion is simultaneously fixedly connected；The rear end of the inner stator 8 is coaxially provided with a ring gear structure 10, and the center of the ring gear structure 10 is equipped with one
Inner hole 11, the inner hole 11 wear for the shaft 3 of the rotor and are used；The magnetic bowl 6 of the rotor protrude into the inner stator 8 with it is described
Between external stator 9, and simultaneously with the two clearance fit.The magnetic bowl 6 is made of hysteresis material, such as permanent-magnet alloy.
Wherein, the detection marker is reflecting surface, which includes rotating and alternately changing anti-with the axle bed 5
Penetrate region 12 and non-reflecting regions 13.
The photo electric sensitive element 7 by light emit and receiving end towards reflection surface launching infrared light, reflecting surface with
When axle bed 5 rotates, reflecting region 12 and non-reflecting regions 13 alternately change relative to photo electric sensitive element 7, photo electric sensitive element 7
Alternate optical signal is converted into pulse electrical signal, pulse signal is sent to control unit by photo electric sensitive element 7, passes through control
Unit calculates the rotary speed information for working as lower rotor part.The reflecting region 12 and the non-reflecting regions 13 are fan-shaped, the number of the two
Equal at least two are measured, and alternately on the rear end face that circumferencial direction is arranged in the axle bed 5.Quantity is more, pulse frequency
Higher, then detection accuracy is higher.The calculation method of described control unit will appreciate that for those skilled in the art, and maturation can be used
The prior art, not this case main points, therefore do not repeat.
Alternatively, the detection marker is reflected ray (non-attached drawing shows), diameter of the reflected ray along 5 rear end face of axle bed
Direction setting.The photo electric sensitive element 7 is emitted by light and receiving end is towards reflection surface launching infrared light, when reflecting surface exists
When rotating with axle bed 5, light transmitting and receiving end can capture the reflected ray with gap, and photo electric sensitive element 7 will receive
The pulse signal be sent to control unit, by control unit calculate work as lower rotor part rotary speed information.
Alternatively, the detection marker is reflection point (non-attached drawing shows), the reflection point eccentric setting is after the axle bed 5
On end face.The photo electric sensitive element 7 by light emit and receiving end towards reflection surface launching infrared light, when reflecting surface with
When axle bed 5 rotates, light transmitting and receiving end can capture the reflection point with gap, and photo electric sensitive element 7 will receive
The pulse signal is sent to control unit, and the rotary speed information for working as lower rotor part is calculated by control unit.
Compared to existing technologies, the utility model smart structural design passes through the setting of photoelectricity measures the structure, Neng Gouzhun
It really and efficiently detects the real-time revolving speed of rotor, there is preferable practical improvement.
The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement accordingly, do not limit the protection scope of the present invention.
All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover the protection scope of the utility model it
It is interior.
Claims (7)
1. a kind of magnetic hysteresis device capable of measuring speed, including rotor, magnetic pole of the stator and rear cover, coil is wound in the magnetic pole of the stator；Its
It is characterized in that:
The rotor includes a shaft, and the front end of the shaft is arranged in the center of the magnetic pole of the stator, and by bearing and determines
Sub- magnetic pole rolling assembling；The rear end of the shaft is fixedly arranged on the center of rotation of an axle bed, is coaxially installed with a magnetic on the axle bed
Bowl, the annulus peripheral wall of the magnetic bowl protrudes into forward in the magnetic pole of the stator, and clearance fit therewith；The rear cover covers at described turn
The periphery of son, and be fixedly connected with magnetic pole of the stator；
It wherein, further include photoelectricity measures the structure, which includes detection marker and photo electric sensitive element；It is described
Detect marker be set to the axle bed rear end face on, the photo electric sensitive element be fixedly arranged on it is described after cover and with the shaft
Eccentric setting, the light transmitting of photo electric sensitive element and receiving end correspond to the detection marker setting, while photoelectric sensing
Element and a control unit are electrically connected.
2. magnetic hysteresis device according to claim 1, it is characterised in that: the magnetic pole of the stator includes inner stator and external stator, institute
External stator is stated to be sheathed on outside the inner stator and be fixedly connected；
The rear end of the inner stator is coaxially provided with a ring gear structure, and the center of the ring gear structure is equipped with an inner hole, which supplies
The shaft of the rotor, which is worn, to be used；The magnetic bowl of the rotor protrudes between the inner stator and the external stator, and simultaneously with
The two clearance fit.
3. magnetic hysteresis device according to claim 1, it is characterised in that: the magnetic bowl is made of hysteresis material.
4. magnetic hysteresis device according to claim 1, it is characterised in that: the detection marker is reflecting surface, the reflection bread
Include the reflecting region and non-reflecting regions for rotating with the axle bed and alternately changing.
5. magnetic hysteresis device according to claim 4, it is characterised in that: the reflecting region and the non-reflecting regions are in fan
Shape, the quantity of the two equal at least two, and alternately on the rear end face that circumferencial direction is arranged in the axle bed.
6. magnetic hysteresis device according to claim 1, it is characterised in that: the detection marker is reflected ray, the reflected ray edge
The diametrical direction of the axle bed rear end face is arranged.
7. magnetic hysteresis device according to claim 1, it is characterised in that: the detection marker is reflection point, and the reflection point is inclined
The heart is set on the rear end face of the axle bed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920125208.4U CN209375380U (en) | 2019-01-24 | 2019-01-24 | A kind of magnetic hysteresis device capable of measuring speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920125208.4U CN209375380U (en) | 2019-01-24 | 2019-01-24 | A kind of magnetic hysteresis device capable of measuring speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209375380U true CN209375380U (en) | 2019-09-10 |
Family
ID=67826876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920125208.4U Active CN209375380U (en) | 2019-01-24 | 2019-01-24 | A kind of magnetic hysteresis device capable of measuring speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209375380U (en) |
-
2019
- 2019-01-24 CN CN201920125208.4U patent/CN209375380U/en active Active
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