CN203981697U - A kind of magnetic sensing slip ring that tests the speed - Google Patents
A kind of magnetic sensing slip ring that tests the speed Download PDFInfo
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- CN203981697U CN203981697U CN201420331505.1U CN201420331505U CN203981697U CN 203981697 U CN203981697 U CN 203981697U CN 201420331505 U CN201420331505 U CN 201420331505U CN 203981697 U CN203981697 U CN 203981697U
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- velometer
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Abstract
The utility model discloses a kind of magnetic sensing slip ring that tests the speed, comprise magnetic sensing velometer, sensor support frame, magnetic induction line chopping disk, slip-ring rotor, slip ring stator, sensor cable, crimping pin, link, described slip-ring rotor can be with respect to slip ring stator rotation, magnetic sensing velometer is fixedly connected on slip-ring rotor by sensor support frame, described magnetic induction line chopping disk is fixedly installed on slip ring stator and is coaxial with slip-ring rotor, described magnetic sensing velometer connects crimping pin by sensor cable, described crimping cushion connects the link being positioned on slip-ring rotor, measuring principle is under the cooperation of magnetic sensing velometer and magnetic induction line chopping disk, by rotor end, magnetic sensing velometer is recorded through the magnetic strength signal intensity value in hole on magnetic induction line chopping disk and is reached the object testing the speed.Magnetoelectric sensor adaptive capacity to environment is strong simultaneously, not only meets the function of monitoring slip ring rotating speed but also take into account the repairing in later stage and safeguard.
Description
Technical field
The utility model belongs to technical field of wind power generation, specifically a kind of for wind-powered electricity generation communication slip ring and parts thereof on blower fan.
Background technology
China's wind-power electricity generation cause development at present, distributional region is more and more extensive, and blower fan applied environment is more and more severe, as desert, seashore, high temperature or low temperature, even can be subjected to the destruction of thunder and lightning, so propose higher requirement for the accessory on aerogenerator and installation.
Slip ring also referred to as rotary electric interface, electric rotary switch, transmits the electric system maincenter of power supply and data-signal from fixed sturcture to rotational structure while can be used for requiring unrestricted continuous rotation arbitrarily.Slip ring is usually used in and requires unrestricted, continuous or be interrupted in the Mechatronic Systems of rotation, transmission power supply and data-signal, and can simplify and improved system performance, and not damage wire, be the main electric device of realizing rotating Dynamic Signal and power delivery.
The mode that slip ring is mainly contacted by ring body and brush, and do relative rotary motion and realize carrying out the transmission of signal and power on rotary body, his main structure is by conductive shaft (containing lead-in wire), brush (containing brush-lead), slip ring spider, bearing, bearing (ball) cover combines, conductive shaft and rotating object mechanical connection, wire and need to provide the interface of power and signal to connect one to one, slip ring spider is fixed on stationary object, brush-lead access is needed to signal and the power port of input, between conductive shaft and brush, contact is rotated relatively like this, realize the transmission of signal and power.
The tachogenerator of domestic production at present mainly contains two kinds of citation forms, and one is photo-electric, and another kind is magneto-electric.In principle, photoelectric sensor has advantages of highly sensitive.But photosensitive device is subject to light and disturbs, and in the time that dust or greasy dirt etc. are attached to device surface, also can cut off light path and make sensitivity, be that adaptive capacity to environment is poor. from this point, the adaptive capacity to environment of magnetoelectric sensor is stronger, on blower fan, moves and is more suitable for.
Utility model of the present utility model is exactly to utilize this advantage of Magnetic Sensor, installs a set of equipment additional at the rotor of slip ring and the junction of stator, by the rotation that rotarily drives sensor of rotor, reaches by the code-disc that tests the speed that is fixed on stator side the object testing the speed.
Summary of the invention
Wind-powered electricity generation communication slip ring is the vitals of transmission of signal and electric current on blower fan, but he only has the effect of transmission.And in fact can carry out the measurement of blade rotational speed by rotatablely moving between rotor and stator, the utility model is exactly, by the rotor-end at slip ring, a magnetic sensing velometer is installed, the form of a magnetic induction line chopping disk is installed in slip ring stator terminal, by rotation, the magnetic transducing signal that Magnetic Sensor sends is measured the rotating speed of fan blade.The utility model is achieved by the following technical solution.
A kind of magnetic sensing slip ring that tests the speed, comprise magnetic sensing velometer 1, sensor support frame 2, magnetic induction line chopping disk 3, slip-ring rotor 4, slip ring stator 5, sensor cable 6, crimping pin 7, link 8, described slip-ring rotor 4 can rotate with respect to slip ring stator 5, magnetic sensing velometer 1 is fixedly connected on slip-ring rotor 4 by sensor support frame (2), described magnetic induction line chopping disk 3 is fixedly installed on slip ring stator 5 and is coaxial with slip-ring rotor 4, described magnetic sensing velometer 1 connects crimping pin 7 by sensor cable 6, described crimping pin 7 is pegged graft and is positioned at the link 8 on slip-ring rotor 4, by described magnetic induction line chopping disk 3, realize and testing the speed with the relative motion of the magnetic sensing velometer 1 rotating along with slip-ring rotor 4.
As optional mode, above-mentioned a kind of magnetic sensing slip ring that tests the speed, the material of described magnetic induction line chopping disk 3 is magnetic material.
As optional mode, above-mentioned a kind of magnetic sensing slip ring that tests the speed, described magnetic induction line chopping disk 3, for having the annulus of an outstanding end, is evenly provided with the hole 9 that size is identical, described magnetic sensing velometer 1 on described annulus) center of aiming at described hole 9 installs.
As optional mode, above-mentioned a kind of magnetic sensing slip ring that tests the speed, described magnetic induction line chopping disk 3 is fixedly connected on slip ring stator 5 by the first hexagon socket head cap screw 10.
As optional mode, above-mentioned a kind of magnetic sensing slip ring that tests the speed, the cross section of described sensor support frame 2 is L shaped or square, the bottom of sensor support frame 2, by the second hexagon socket head cap screw 11, is fixedly connected on slip-ring rotor 4.
In sum, owing to having adopted technique scheme, the beneficial effects of the utility model are:
Slip ring speed measuring device described in the utility model, rational in infrastructure, easy for installation, adopt magnetic sensing velometer to transmit running speed with the metering system coordinating of magnetic induction line chopping disk, measuring principle is at magnetic sensing velometer and surveys under the help of magnetic induction line chopping disk, by rotor end, magnetic sensing velometer is recorded through the magnetic strength signal intensity value in hole on magnetic induction line chopping disk and is reached the object testing the speed.Not only meet the function of monitoring slip ring rotating speed but also take into account the repairing in later stage and safeguard.Magnetoelectric sensor adaptive capacity to environment is stronger simultaneously, can apply to various special environment, is convenient to again dismounting and changes after damage.
Brief description of the drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is the magnetic sensing slip ring structure schematic diagram that tests the speed;
Fig. 2 is magnetic induction line chopping disk structural drawing;
Fig. 3 is magnetic sensing velometer structural drawing;
Fig. 4 is sensor support frame structural drawing;
Fig. 5 is sensor electrical cable, crimping pin and link schematic diagram;
Fig. 6 is the fundamental diagram of magnetic sensing velometer and magnetic induction line chopping disk.
Reference numeral: 1 is that magnetic sensing velometer, 2 is that sensor support frame, 3 is that magnetic induction line chopping disk, 4 is that slip-ring rotor, 5 is that slip ring stator, 6 is that sensor cable, 7 is that crimping pin, 8 is link, and 9 is that hole, 10 is that the first hexagon socket head cap screw, 11 is that the second hexagon socket head cap screw, 12 is that permanent magnet, 13 is that winding coil, 14 is magnetic induction line.
Embodiment
Disclosed all features in this instructions, or step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
The utility model is to install a set of equipment additional at the rotor of slip ring and the junction of stator, by the rotation that rotarily drives sensor of rotor, reaches by the code-disc that tests the speed that is fixed on stator side the object testing the speed.Measuring principle is under the cooperation of magnetic sensing velometer and magnetic induction line chopping disk, and by rotor end, magnetic sensing velometer is recorded through the magnetic strength signal intensity value in hole on magnetic induction line chopping disk and reached the object testing the speed.
As Fig. 1, shown in Fig. 3, a kind of magnetic sensing slip ring that tests the speed, comprise magnetic sensing velometer 1, sensor support frame 2, magnetic induction line chopping disk 3, slip-ring rotor 4, slip ring stator 5, sensor cable 6, crimping pin 7, link 8, described slip-ring rotor 4 can rotate with respect to slip ring stator 5, magnetic sensing velometer 1 is fixedly connected on slip-ring rotor 4 by sensor support frame 2, described magnetic induction line chopping disk 3 is fixedly installed on slip ring stator 5 and is coaxial with slip-ring rotor 4, described magnetic sensing velometer 1 connects crimping pin 7 by sensor cable 6, described crimping pin 7 is pegged graft and is positioned at the link 8 on slip-ring rotor 4, cut by described magnetic induction line chopping disk 3 magnetic induction line that the magnetic sensing velometer 1 that rotates along with slip-ring rotor 4 produces, the magnetic strength signal of formation and modification, be that electromotive force variable signal is realized and being tested the speed.The permanent magnet 12 of magnetic sensing velometer 1 inside can produce magnetic induction line 14, when the magnetic induction line chopping disk 3 that material is No. 45 steel does after cutting magnetic induction line motion, winding coil 13 can produce electromotive force, when after the circular hole on magnetic induction line chopping disk 3, the corresponding change of electromotive force, and magnetic sensing velometer 1 reaches by the change frequency that records electromotive force the object testing the speed.Magnetic induction line 14 is non-existent thing in fact, be conveniently understand magnetic field for people principle illusion out.
As shown in Figure 2, described magnetic induction line chopping disk 3 is for having the annulus of an outstanding end, and described annulus comprises outer shroud and interior ring, is evenly provided with the hole 9 that size is identical on described annulus outer shroud, and described hole, can be also groove, and its number is 23.Described magnetic sensing velometer 1 is aimed at the center in described hole 9 and is installed.On the interior ring of described annulus, be uniformly distributed the screw hole that is useful on connection, on described magnetic induction line chopping disk 3, be fixedly connected on slip ring stator 5 by the first hexagon socket head cap screw 10.
The material of described magnetic induction line chopping disk 3 is magnetic material, for example No. 45 steel because what select is magnetic sensing velometer, need to have can cutting magnetic induction line material.In the time that Magnetic Sensor passes through the hole on magnetic induction line chopping disk 3, can produce different magnetic strength signal, sensor passes through to measure the speed of magnetic strength signal intensity, and reaches the object testing the speed.
As shown in Figure 4, the cross section of described sensor support frame 2 is L shaped or square, and the bottom of sensor support frame 2, by hexagon socket head cap screw 11, is fixedly connected on slip-ring rotor 4.
As shown in Figure 5, the crimping pin 7 that described sensor cable 6 connects is inserted and is connected on link 8, uses described crimping pin 7 to be connected with the inserting mode of link 8, can play better fixation, makes to connect more stable.
First fixation of sensor bracing frame 2 and magnetic induction line chopping disk 3 when installation, use hexagon socket head cap screw to connect when fixing.Magnetic sensing velometer 1 is installed again, when installation, is noted magnetic sensing velometer 1 to be arranged on the center of the counting hole on sense line chopping disk 3, finally carry out the pressing work of magnetic sensing velometer 1 afterbody connecting line.Contact pin size is determined by model is specifically installed.The crimping pin 7 finally sensing velometer 1 tail sensor cable 6 being connected is connected with the link of slip-ring rotor 4 parts.
The utility model is not limited to aforesaid embodiment.The utility model expands to any new feature or any new combination disclosing in this manual, and the arbitrary new method disclosing or step or any new combination of process.
Claims (5)
1. the magnetic sensing slip ring that tests the speed, comprise magnetic sensing velometer (1), sensor support frame (2), magnetic induction line chopping disk (3), slip-ring rotor (4), slip ring stator (5), sensor cable (6), crimping pin (7), link (8), described slip-ring rotor (4) can rotate with respect to slip ring stator (5), it is characterized in that: magnetic sensing velometer (1) is fixedly connected on slip-ring rotor (4) by sensor support frame (2), it is upper and coaxial with slip-ring rotor (4) that described magnetic induction line chopping disk (3) is fixedly installed on slip ring stator (5), described magnetic sensing velometer (1) connects crimping pin (7) by sensor cable (6), described crimping pin (7) is pegged graft and is positioned at the link (8) on slip-ring rotor (4), by described magnetic induction line chopping disk (3), realize and testing the speed with the relative motion of the magnetic sensing velometer (1) rotating along with slip-ring rotor (4).
2. a kind of magnetic sensing as claimed in claim 1 slip ring that tests the speed, is characterized in that: the material of described magnetic induction line chopping disk (3) is magnetic material, and the material of described sensor support frame (2) is aluminium alloy.
3. a kind of magnetic sensing as claimed in claim 2 slip ring that tests the speed, it is characterized in that: described magnetic induction line chopping disk (3) is for having the annulus of an outstanding end, on described annulus, be evenly provided with the hole (9) that size is identical, described magnetic sensing velometer (1) is aimed at the center in described hole (9) and is installed.
4. a kind of magnetic sensing as claimed in claim 3 slip ring that tests the speed, is characterized in that: described magnetic induction line chopping disk (3) is fixedly connected on slip ring stator (5) by the first hexagon socket head cap screw (10).
5. a kind of magnetic sensing as claimed in claim 3 slip ring that tests the speed, it is characterized in that: the cross section of described sensor support frame (2) is L shaped or square, the bottom of sensor support frame (2), by the second hexagon socket head cap screw (11), is fixedly connected on slip-ring rotor (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420331505.1U CN203981697U (en) | 2014-06-20 | 2014-06-20 | A kind of magnetic sensing slip ring that tests the speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420331505.1U CN203981697U (en) | 2014-06-20 | 2014-06-20 | A kind of magnetic sensing slip ring that tests the speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203981697U true CN203981697U (en) | 2014-12-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420331505.1U Active CN203981697U (en) | 2014-06-20 | 2014-06-20 | A kind of magnetic sensing slip ring that tests the speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203981697U (en) |
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2014
- 2014-06-20 CN CN201420331505.1U patent/CN203981697U/en active Active
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |