CN209689644U - A kind of magneto-dependent sensor for the output of RS422 digital signal - Google Patents
A kind of magneto-dependent sensor for the output of RS422 digital signal Download PDFInfo
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- CN209689644U CN209689644U CN201822232703.3U CN201822232703U CN209689644U CN 209689644 U CN209689644 U CN 209689644U CN 201822232703 U CN201822232703 U CN 201822232703U CN 209689644 U CN209689644 U CN 209689644U
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- shaft
- sensor housing
- magnet steel
- digital signal
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 55
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- 238000009434 installation Methods 0.000 claims abstract description 45
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
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- 238000010586 diagram Methods 0.000 description 2
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- 230000005540 biological transmission Effects 0.000 description 1
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Abstract
The utility model discloses a kind of magneto-dependent sensors for the output of RS422 digital signal, including sensor housing, first rotating shaft, second shaft, installation base plate and cover board, there is installation inner cavity inside sensor housing, sensor housing side is provided with installing port, sensor housing other side center is provided with axis hole, first rotating shaft, which is rotatably assorted, to be installed in the axis hole of sensor housing, the second end of first rotating shaft is fixed with the second shaft by screw A, magnet steel mounting groove is provided in the middle part of second shaft, magnet steel is fitted in the magnet steel mounting groove of second shaft, installation base plate is installed in the installation inner cavity of sensor housing, hardware circuit board is installed on installation base plate, in hardware circuit board there is electromagnetic signal to receive circuit, closing is covered with cover board at the installing port of sensor housing.The utility model electromagnetic signal receives circuit reception changes of magnetic field and is converted into RS422 digital signal and exports to host computer, while installation difficulty is low, and output data stability is high.
Description
Technical field
The utility model relates to a kind of magneto-dependent sensor more particularly to a kind of magnetosensitives for the output of RS422 digital signal
Sensor.
Background technique
Magneto-dependent sensor has many advantages, such as that small in size, precision is high, high reliablity, long service life are widely used in because of it
The fields such as Aeronautics and Astronautics, petroleum, automobile, ship.Traditional magneto-dependent sensor shaft is single component, is an entirety, passes through
Fluting carries out axial limiting with retainer ring on axis, and such structure design assembling process is difficult and occupancy assembly space is excessive,
It will lead to the movement that shaft generates axial direction, make magnetic field strength that corresponding variation occur, output data jump is inaccurate.Moreover,
For prior art magneto-dependent sensor mostly all based on analog signal output, RS422 digital signal is a kind of common number letter
Number, existing magneto-dependent sensor can not export RS422 digital signal, this is unable to satisfy the demand of user.
Utility model content
Place in view of the shortcomings of the prior art, the purpose of this utility model is to provide one kind for RS422 number
The rotational motion of first rotating shaft, the second shaft, can be passed to magnet steel by the magneto-dependent sensor of signal output, and magnet steel rotation occurs
Changes of magnetic field, electromagnetic signal reception circuit reception changes of magnetic field are converted into RS422 digital signal and export to host computer；Meanwhile the
One shaft and second shaft two parts detachable connection, magnet steel are installed on the second shaft, can reduce installation difficulty, while the
Axial displacement will not integrally occur for one shaft and the second shaft, improve output data stability.
The purpose of this utility model is achieved through the following technical solutions:
A kind of magneto-dependent sensor for the output of RS422 digital signal, including sensor housing, first rotating shaft, second turn
Axis, installation base plate and cover board, the sensor housing inside have installation inner cavity, and the sensor housing side is provided with and installs
The installing port that inner cavity is connected, sensor housing other side center be provided with the axis hole that is connected of installation inner cavity, described the
One shaft, which is rotatably assorted, to be installed in the axis hole of sensor housing, and the first end of first rotating shaft is placed on the outside of sensor housing, the
The second end of one shaft is placed in installation inner cavity；The second end of the first rotating shaft is fixed with the second shaft by screw A, and second
It is provided with magnet steel mounting groove in the middle part of shaft, magnet steel is fitted in the magnet steel mounting groove of the second shaft, the sensor housing
Installation is equipped with installation base plate in inner cavity, and hardware circuit board corresponding with magnet steel is equipped on the installation base plate, described hard
There is electromagnetic signal to receive circuit, the electromagnetic signal receives circuit for receiving magnetic caused by magnet steel rotation on part circuit board
Variable signal, closing is covered with cover board at the installing port of the sensor housing.
In order to which the utility model is better achieved, second shaft is connected by magnet steel connecting pin and with magnet steel connecting pin
Shaft end, the shaft end of second shaft is fixedly connected with the second end of first rotating shaft by screw A, the magnet steel installation
In on magnet steel connecting pin, the gap washer A that disappears is equipped between the magnet steel connecting pin and sensor housing inner sidewall of second shaft.
Preferably, the sensor housing inner wall has the ring-shaped step being located in installation inner cavity, the installation base plate
Edge be installed on the ring-shaped step of sensor housing by screw B, screw C.
Preferably, being equipped with bearing group in the axis hole of the sensor housing, the bearing group is set side by side by several
The bearing composition set, the first rotating shaft, which is rotatably assorted, to be installed in bearing group.
Preferably, the magnet steel installation slot center of second shaft has the countersunk head slot towards first rotating shaft, the spiral shell
The nut of nail A is coupled in countersunk head slot.
Preferably, the cover board is fixed on sensor housing by screw D, screw E.
It is formed preferably, the bearing group is arranged side by side by two bearings, the axis hole of the sensor housing is close to biography
Sensor hull outside is equipped with the O-shaped washer A of gap that disappears, and the axis hole of the sensor housing is O-shaped equipped with the gap that disappears close to installation inner cavity side
Washer B.
Preferably, the magnet steel connecting pin of second shaft and shaft end are integrally formed and manufacture.
The utility model compared with the prior art, have the following advantages that and the utility model has the advantages that
(1) rotational motion of first rotating shaft, the second shaft can be passed to magnet steel, magnetic by the utility model magneto-dependent sensor
Changes of magnetic field occurs for steel rotation, and electromagnetic signal reception circuit reception changes of magnetic field is converted into RS422 digital signal and exports to upper
Machine；Meanwhile first rotating shaft and second shaft two parts detachable connection, magnet steel are installed on the second shaft, can reduce installation
Difficulty, while axial displacement will not integrally occur for first rotating shaft and the second shaft, improve output data stability.
(2) variation that rotating excitation field occurs is converted into the output of RS422 digital signal by the utility model, while in user's skill
In the case that art parameter changes, magneto-dependent sensor, which uncap without returning factory, reprocesses that software can be carried out at user online
Upgrading is to reach the newest technical indicator demand of user.
(3) baffle is fixed on the first rotating shaft end excircle of the utility model, the magnet steel of the second shaft connects end side
Wall and baffle clamping are installed on the two sides of two bearings, and two bearings are fixed in the axis hole of sensor housing, and such first turn
Axial displacement would not integrally occur for axis and the second shaft, improve the output data stability of magneto-dependent sensor.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the circuit diagram that the utility model electromagnetic signal receives circuit.
Wherein, title corresponding to the appended drawing reference in attached drawing are as follows:
1- first rotating shaft, the second shaft of 2-, 3- bearing group, 4- magnet steel, 5- sensor housing, 51- install inner cavity,
6- hardware circuit board, 7- cover board, 8- installation base plate, 9- screw A, 10- screw B, 11- screw C, 12- screw D, 13-
Screw E, 14- disappear the O-shaped washer A of gap, and 15- disappears the O-shaped washer B of gap.
Specific embodiment
The utility model is described in further detail below with reference to embodiment.
Embodiment
As shown in Figure 1 and Figure 2, a kind of magneto-dependent sensor for the output of RS422 digital signal, including sensor housing 5,
First rotating shaft 1, the second shaft 2, installation base plate 8 and cover board 7 have installation inner cavity 51, sensor housing inside sensor housing 5
5 sides are provided with the installing port being connected with installation inner cavity 51, and 5 other side center of sensor housing is provided with to be connected with installation inner cavity 51
Logical axis hole, first rotating shaft 1 are rotatably assorted in the axis hole for being installed on sensor housing 5, and the first end of first rotating shaft 1 is placed in sensing
5 outside of device shell, the second end of first rotating shaft 1 are placed in installation inner cavity 51.The second end of first rotating shaft 1 is fixed by screw A9
There is the second shaft 2, magnet steel mounting groove is provided in the middle part of the second shaft 2, is fitted with magnet steel in the magnet steel mounting groove of the second shaft 2
4, installation base plate 8 is installed in the installation inner cavity 51 of sensor housing 5, is equipped on installation base plate 8 corresponding with magnet steel 4 hard
Part circuit board 6 there is electromagnetic signal to receive circuit (as shown in Figure 2) in hardware circuit board 6, and electromagnetic signal receives circuit and is used to connect
It receives magnet steel 4 to rotate generated magnetic field variation signal and be converted to RS422 digital signal, be sealed at the installing port of sensor housing 5
It closes and is covered with cover board 7.First rotating shaft 1 is rotated with external sync, and first rotating shaft 1 drives the second shaft 2 to rotate, and then second turn
Axis 2 drives magnet steel 4 to rotate, and magnet steel 4 generates changes of magnetic field due to rotation, in hardware circuit board 6 there is electromagnetic signal to receive electricity
Road, electromagnetic signal receive circuit detect magnet steel 4 rotation and variation magnetic field and obtain analog electrical signal and by analog electrical signal turn
It is changed to RS422 digital signal, then exports RS422 digital signal, can be detected out external rotation situation of change.
As shown in Figure 1, the second shaft 2 is by magnet steel connecting pin and the shaft end being connected with magnet steel connecting pin, the second shaft 2
Shaft end be fixedly connected with the second end of first rotating shaft 1 by screw A9, magnet steel 4 is installed on magnet steel connecting pin, second turn
The gap washer A that disappears is equipped between 5 inner sidewall of magnet steel connecting pin and sensor housing of axis 2.
As shown in Figure 1,5 inner wall of sensor housing has the ring-shaped step being located in installation inner cavity 51, the side of installation base plate 8
Edge is installed on the ring-shaped step of sensor housing 5 by screw B10, screw C11.
As shown in Figure 1, being equipped with bearing group 3 in the axis hole of sensor housing 5, bearing group 3 is arranged side by side by several
Bearing composition, first rotating shaft 1, which is rotatably assorted, to be installed in bearing group 3.Bearing group 3 is arranged side by side by two bearings and is formed, and is sensed
The axis hole of device shell 5 is equipped with the O-shaped washer A14 of gap that disappears on the outside of sensor housing 5, and the axis hole of sensor housing 5 is close to installation
51 side of inner cavity is equipped with the O-shaped washer B15 of gap that disappears.
As shown in Figure 1, the magnet steel installation slot center of the second shaft 2 has the countersunk head slot towards first rotating shaft 1, screw A9's
Nut is coupled in countersunk head slot.The preferred cover board 7 of the utility model is fixed on sensor shell by screw D12, screw E13
On body 5.
The magnet steel connecting pin and shaft end of preferred second shaft 2 of the utility model, which are integrally formed, to be manufactured.
In use, first rotating shaft 1 is rotated with external sync, first rotating shaft 1 drives the rotation of the second shaft 2, then second
Shaft 2 drives magnet steel 4 to rotate, and magnet steel 4 generates changes of magnetic field due to rotation, in hardware circuit board 6 there is electromagnetic signal to receive
Circuit, electromagnetic signal receive circuit detect the rotation of magnet steel 4 and variation magnetic field and obtain analog electrical signal and by analog electrical signal
RS422 digital signal is converted to, RS422 digital signal is then exported, can be detected out external rotation situation of change.Electromagnetic signal
It is fed back after receiving the variation that circuit parsing magnetic field strength occurs by the RS422 digital signal of inter-process output corresponding thereto
To host computer.
2 two parts detachable connection of first rotating shaft 1 and the second shaft of the utility model, first rotating shaft 1 are rotatably assorted
It is installed on two Bearing inners, first rotating shaft 1 only serves the external rotation variation that transmission detects, the second shaft 2 and first turn
Axis 1 is fixedly connected and rotates synchronously, and the second shaft 2 drives magnet steel 4 to rotate synchronously, the magnet steel connecting pin of the second shaft 2 and sensing
It is equipped with the gap washer A that disappears between 5 inner sidewall of device shell, baffle, the magnetic of the second shaft 2 are fixed on 1 end excircle of first rotating shaft
Steel connecting pin side wall and baffle clamping are installed on the two sides of two bearings, and two bearings are fixed in the axis hole of sensor housing 5,
First rotating shaft 1 and the second shaft 2 are whole in this way would not occur axial displacement, and the output data for improving magneto-dependent sensor is stablized
Property.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (8)
1. a kind of magneto-dependent sensor for the output of RS422 digital signal, it is characterised in that: including sensor housing (5), first
Shaft (1), the second shaft (2), installation base plate (8) and cover board (7), the sensor housing (5) is internal to have installation inner cavity
(51), sensor housing (5) side is provided with the installing port being connected with installation inner cavity (51), the sensor housing (5)
Other side center is provided with the axis hole being connected with installation inner cavity (51), and the first rotating shaft (1), which is rotatably assorted, is installed on sensor
In the axis hole of shell (5), the first end of first rotating shaft (1) is placed on the outside of sensor housing (5), the second end of first rotating shaft (1)
It is placed in installation inner cavity (51)；The second end of the first rotating shaft (1) passes through screw A(9) it is fixed with the second shaft (2), second
It is provided with magnet steel mounting groove in the middle part of shaft (2), magnet steel (4), the sensing are fitted in the magnet steel mounting groove of the second shaft (2)
It is equipped with installation base plate (8), is equipped on the installation base plate (8) and magnet steel (4) phase in the installation inner cavity (51) of device shell (5)
Corresponding hardware circuit board (6) there is electromagnetic signal to receive circuit, the sensor housing (5) on the hardware circuit board (6)
Installing port at closing be covered with cover board (7).
2. a kind of magneto-dependent sensor for the output of RS422 digital signal described in accordance with the claim 1, it is characterised in that: institute
The second shaft (2) is stated by magnet steel connecting pin and the shaft end being connected with magnet steel connecting pin, the shaft end of second shaft (2)
Pass through screw A(9 with the second end of first rotating shaft (1)) it is fixedly connected, the magnet steel (4) is installed on magnet steel connecting pin, described
The gap washer A that disappears is equipped between the magnet steel connecting pin and sensor housing (5) inner sidewall of second shaft (2).
3. a kind of magneto-dependent sensor for the output of RS422 digital signal described in accordance with the claim 1, it is characterised in that: institute
Stating sensor housing (5) inner wall has the ring-shaped step being located in installation inner cavity (51), and the edge of the installation base plate (8) passes through
Screw B(10), screw C(11) be installed on the ring-shaped step of sensor housing (5).
4. a kind of magneto-dependent sensor for the output of RS422 digital signal described in accordance with the claim 1, it is characterised in that: institute
It states and is equipped in the axis hole of sensor housing (5) bearing group (3), the bearing group (3) is by several bearing groups arranged side by side
At the first rotating shaft (1), which is rotatably assorted, to be installed in bearing group (3).
5. a kind of magneto-dependent sensor for the output of RS422 digital signal described in accordance with the claim 1, it is characterised in that: institute
State the second shaft (2) magnet steel installation slot center have towards first rotating shaft (1) countersunk head slot, the screw A(9) nut match
Conjunction is installed in countersunk head slot.
6. a kind of magneto-dependent sensor for the output of RS422 digital signal described in accordance with the claim 1, it is characterised in that: institute
State cover board (7) and pass through screw D(12), screw E(13) it is fixed on sensor housing (5).
7. a kind of magneto-dependent sensor for the output of RS422 digital signal according to claim 4, it is characterised in that: institute
State bearing group (3) by two bearings be arranged side by side form, the axis hole of the sensor housing (5) close to sensor housing (5) outside
Side is equipped with the O-shaped washer A(14 of gap that disappears), the axis hole of the sensor housing (5) is O-shaped equipped with the gap that disappears close to installation inner cavity (51) side
Washer B(15).
8. a kind of magneto-dependent sensor for the output of RS422 digital signal described in accordance with the claim 1, it is characterised in that: institute
The magnet steel connecting pin and shaft end for stating the second shaft (2), which are integrally formed, to be manufactured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822232703.3U CN209689644U (en) | 2018-12-28 | 2018-12-28 | A kind of magneto-dependent sensor for the output of RS422 digital signal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822232703.3U CN209689644U (en) | 2018-12-28 | 2018-12-28 | A kind of magneto-dependent sensor for the output of RS422 digital signal |
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| Publication Number | Publication Date |
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| CN209689644U true CN209689644U (en) | 2019-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822232703.3U Active CN209689644U (en) | 2018-12-28 | 2018-12-28 | A kind of magneto-dependent sensor for the output of RS422 digital signal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489695A (en) * | 2018-12-28 | 2019-03-19 | 成都宏明电子股份有限公司 | A kind of magneto-dependent sensor for the output of RS422 digital signal |
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- 2018-12-28 CN CN201822232703.3U patent/CN209689644U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489695A (en) * | 2018-12-28 | 2019-03-19 | 成都宏明电子股份有限公司 | A kind of magneto-dependent sensor for the output of RS422 digital signal |
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