CN212379427U - Self-charging integrated rotating machinery rotating speed sensor - Google Patents
Self-charging integrated rotating machinery rotating speed sensor Download PDFInfo
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- CN212379427U CN212379427U CN202020811559.3U CN202020811559U CN212379427U CN 212379427 U CN212379427 U CN 212379427U CN 202020811559 U CN202020811559 U CN 202020811559U CN 212379427 U CN212379427 U CN 212379427U
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Abstract
The utility model discloses a self-charging integral type rotating machinery revolution speed sensor, including power generation facility, a rectifier circuit, filter circuit, the charging circuit module, signal acquisition module and signal processing module, power generation facility produces alternating current with the cooperation of the rotatory main shaft of gear box, power generation facility is connected with rectifier circuit, rectifier circuit is connected with filter circuit, filter circuit is connected with the charging circuit module, the charging circuit module is connected with the signal processing module, the signal acquisition module is connected with power generation facility, signal acquisition module gathers power generation facility's voltage signal, signal acquisition facility is connected with the signal processing module, the signal processing module calculates the rotational speed of the rotatory main shaft of gear box according to the voltage signal who receives. The utility model discloses a power generation facility converts kinetic energy into electric energy, for conversion sensor itself provides reliable and stable power, realizes the self-power, and power generation facility installs in rotatory main shaft one side, and the non-contact installation, simple to operate can not exert an influence to the rotation main shaft.
Description
Technical Field
The utility model relates to a sensor technical field especially relates to a from rotatory mechanical speed sensor of integral type that charges.
Background
The traditional speed sensor comprises a laser rotating speed sensor, an eddy current rotating speed sensor, an encoding type rotating speed sensor and the like, and has the following defects:
(1) the traditional speed sensor generally adopts a wired power supply mode, and cannot realize automatic power supply and rotating speed measurement;
(2) the laser rotating speed sensor needs a laser probe and a smooth reflecting surface, and is inconvenient to install under severe working conditions;
(3) the eddy current speed sensor needs to be provided with a key groove on the rotating shaft, and the rotating speed is calculated by sensing and recording the pulse time interval between the key groove and the eddy current probe. The key groove of the rotating shaft needs to change the design scheme of a shaft system, and is not favorable for later use. The distance between the probe and the rotating shaft has strict requirements, and the field installation and debugging are not facilitated;
(4) the coded rotating speed sensor needs to be arranged in a shaft system to rotate synchronously with the shaft system, so that the coded rotating speed sensor is inconvenient to use after installation and destroys the original shaft system design.
For example, a "torque/rotational speed sensor" disclosed in chinese patent literature has a publication number: CN201233290, application date: 14.07.2008, the device comprises a torque sensor, a rotation speed sensor and a signal processor, wherein the signal processor is connected with the torque sensor and the rotation speed sensor, and converts analog signals output by the torque sensor and the rotation speed sensor into digital signals and outputs the digital signals through a field bus. The external wired power supply mode that the revolution speed transducer of this application adopted can't realize automatic power supply.
Disclosure of Invention
The utility model mainly solves the problems that the rotation speed sensor can not realize self power supply and is inconvenient to install in the prior art; the utility model provides a self-charging integral type rotating machinery revolution speed sensor monitors the rotatory main shaft rotational speed of gear box, simple to operate realizes independently supplying power, and is with low costs.
The above technical problem of the present invention can be solved by the following technical solutions: the utility model provides a self-charging integral type rotating machinery revolution speed sensor, includes gear box rotating main shaft, power generation facility, rectifier circuit, filter circuit, charging circuit module, signal acquisition module and signal processing module, power generation facility produces alternating current with the cooperation of gear box rotating main shaft, power generation facility is connected with rectifier circuit, rectifier circuit is connected with filter circuit, filter circuit is connected with the charging circuit module, the charging circuit module is connected with the signal processing module, the signal acquisition module is connected with power generation facility, the voltage signal of power generation facility is gathered to the signal acquisition module, the signal acquisition facility is connected with the signal processing module, the signal processing module calculates the rotational speed of gear box rotating main shaft according to the voltage signal who receives. The alternating current is generated by matching the power generation device with the gear box rotating main shaft, the alternating current is converted into direct current through the rectifier module and then is supplied to the signal processing module, the independent power supply of the rotating speed sensor is realized, the electric energy is converted through kinetic energy, the energy is saved, the cost is low, the voltage signal of the power generation device is collected through the signal acquisition module, the signal processing module carries out rotating speed calculation of the gear box rotating main shaft according to the collected voltage signal, and the rotating speed of the gear box rotating main shaft is monitored.
Preferably, the power generation device comprises a permanent magnet ring, an outer end cover, a bearing end cover, a stator coil, a stator core, an outer end cover bearing, a non-magnetic conductive outer sleeve, a positioning bearing, a dustproof sealing ring, a circuit board packaging module and a connecting nut, wherein the permanent magnet ring is arranged on the side of a rotating main shaft of the gear box, the permanent magnet ring is matched with the rotating main shaft of the gear box and rotates under the magnetic field coupling action to cut a magnetic induction line to generate alternating current, the outer end cover is arranged on one side of the permanent magnet ring through the outer end cover bearing, the bearing end cover is arranged on the other side of the permanent magnet ring corresponding to the outer end cover, the non-magnetic conductive outer sleeve is covered and arranged on the surface of the permanent magnet ring, the stator coil is arranged in the permanent magnet ring, the stator core is arranged between the stator coil and, the circuit board packaging module is connected with the bearing end cover through the dustproof sealing ring. The permanent magnet ring is installed at one side close to the gear box main shaft and rotates to generate a magnetic field, the eddy current on the surface of the main shaft is coupled with the magnetic field to enable the permanent magnet ring to do relative rotation motion, the magnetic field magnetic induction line inside the permanent magnet ring cuts a stator coil when the permanent magnet ring rotates to generate alternating current, and the alternating current is stored after passing through the rectifying circuit.
Preferably, the permanent magnet ring comprises a plurality of permanent magnets, the number of the permanent magnets is even, and the magnetic poles of the adjacent 2 permanent magnets are opposite. The magnetic poles of the adjacent 2 permanent magnets are opposite, so that the magnetic induction lines of the magnetic fields in the permanent magnet rings can cut the stator coils when the permanent magnet rings rotate, and alternating current is generated.
Preferably, the charging circuit module comprises a voltage stabilizing circuit and an energy storage device. And the direct current is stabilized through a voltage stabilizing circuit.
Preferably, the rectifier circuit is a bridge rectifier circuit. The alternating current is converted to direct current by a bridge rectifier circuit.
Preferably, the energy storage device comprises an energy storage capacitor, a storage battery or a lithium battery. And multiple energy storage devices are selectable, so that the cost is saved.
Preferably, the device further comprises a Bluetooth transmission module, wherein the Bluetooth transmission module is connected with the signal processing module and is used for transmitting the rotating speed signal. The edge computing gateway is arranged and used for receiving the rotating speed signals, networking is formed through the Bluetooth transmission module, and the rotating speed signals measured by the rotating speed sensors in the area are uploaded to the edge computing gateway through the networking.
Preferably, the filter circuit is a filter capacitor. And filtering the converted direct current through a filter capacitor to filter the incompletely converted alternating current.
The utility model has the advantages that: (1) kinetic energy is converted into electric energy through the power generation device, a stable and reliable power supply is provided for the conversion sensor, and self-power supply is realized; (2) the power generation device is arranged on one side of the rotating main shaft, is installed in a non-contact manner, is convenient to install and cannot influence the rotating main shaft; (3) monitoring the rotating speed of the rotating main shaft is realized through a signal acquisition module and a signal processing module; (4) remote signal transmission can be realized through the Bluetooth transmission module.
Drawings
Fig. 1 is a block diagram of a rotational speed sensor according to a first embodiment.
Fig. 2 is an exploded view of the power generation device according to the first embodiment.
Fig. 3 is a sectional view of the power generation device according to the first embodiment.
Fig. 4 is a schematic view of an installation position of the power generation device according to the first embodiment.
Fig. 5 is a schematic diagram of power connection of a signal acquisition module according to the first embodiment.
In the figure, 1, a stator coil, 2, a positioning bearing, 3, a bearing end cover, 4, a dustproof sealing ring, 5, a circuit board packaging module, 6, a connecting nut, 7, a stator iron core, 8, an outer end cover bearing, 9, a non-magnetic-conductive outer sleeve, 10, a permanent magnet ring, 11, an outer end cover, 12, a power generation device, 13, a rectifying circuit, 14, a filter circuit, 15, a charging circuit module, 16, a signal acquisition module and 17, a signal processing module are arranged.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
The first embodiment is as follows: a self-charging integrated rotating machinery rotating speed sensor is disclosed, as shown in figure 1, and comprises a gear box rotating main shaft, a power generation device 12, a rectification circuit 13, a filter circuit 14, a charging circuit module 15, a signal acquisition module 16, a signal processing module 17 and a Bluetooth transmission module, wherein the power generation device 12 is matched with the gear box rotating main shaft to generate alternating current, the power generation device 12 is connected with the rectification circuit 13, the rectification circuit 13 is connected with the filter circuit 14, the filter circuit 14 is connected with the charging circuit module 15, the charging circuit module 15 is connected with the signal processing module 17, as shown in figure 5, the signal acquisition module 16 is connected with the power generation device 12, the signal acquisition module 16 acquires voltage signals of the power generation device, the signal acquisition device 16 is connected with the signal processing module 17, the signal processing module 17 calculates the rotating speed of the gear box rotating main shaft according to the received voltage signals, the Bluetooth transmission module, for communicating the tachometer signal to the edge computing gateway.
As shown in fig. 2 and 3, the power generation device 12 includes a permanent magnet ring 10, an outer end cover 11, a bearing end cover 3, a stator coil 1, a stator core 7, an outer end cover bearing 8, a non-magnetic conductive outer sleeve 9, a positioning bearing 2, a dust seal 4, a circuit board encapsulation module 5 and a connection nut 6, as shown in fig. 4, the permanent magnet ring 10 is matched with a rotating main shaft of the gear box and rotates through magnetic field coupling action to cut a magnetic induction wire to generate alternating current, the outer end cover 11 is installed on one side of the permanent magnet ring 10 through the outer end cover bearing 8, the bearing end cover 3 is installed on the other side of the permanent magnet ring 10 corresponding to the outer end cover 11, the non-magnetic conductive outer sleeve 9 is covered and installed on the surface of the permanent magnet ring 10, the stator coil 1 is installed in the permanent magnet ring 10, the stator core 7 is installed between the stator coil 1 and the permanent magnet ring 10, the circuit board packaging module 5 is connected with the bearing end cover 3 through the dustproof sealing ring 4, the permanent magnet ring 10 comprises a plurality of permanent magnets, the number of the permanent magnets is even, the magnetic poles between every two adjacent permanent magnets are opposite, the charging circuit module 15 comprises a voltage stabilizing circuit and an energy storage device, the rectifying circuit 13 is a bridge rectifying circuit, the filtering circuit 14 is a filtering capacitor, and the energy storage device comprises an energy storage capacitor, a storage battery or a lithium battery.
In the concrete application, when the gear box starts to work, when the main shaft of the gear box starts to rotate, the permanent magnet ring 10 is positioned at a position close to the main shaft of the gear box, a magnetic induction line generated by the permanent magnet ring 10 moves relative to the surface of the main shaft, so that an alternating magnetic field generates an eddy current on the metal surface of the main shaft, the eddy current on the surface of the main shaft is coupled with the magnetic field to drive the permanent magnet ring 10 to rotate, a stator coil 1 is installed inside the permanent magnet ring 10, the magnetic induction line cuts the stator coil 1 when the permanent magnet ring 10 rotates, so that the stator coil 1 generates an alternating current, the alternating current is transmitted to the circuit board packaging module 5, a bridge rectifier circuit, a filter capacitor and a voltage stabilizing circuit are arranged in the circuit board packaging module 5, the alternating current is rectified, filtered and stabilized by a storage battery to store electric energy and is used for supplying power to, and transmit for signal processing module, signal processing module calculates the rotational speed of rotatory main shaft according to the voltage signal of gathering to transmit to the edge calculation gateway through bluetooth transmission module, if there are a plurality of speed sensor, then a plurality of bluetooth transmission module form the network deployment system, make network transmission more stable safety.
In the second embodiment, compared with the first embodiment, the self-charging integrated rotary machine revolution speed sensor is additionally provided with a fixed value resistor R1, a fixed value resistor R2, a fixed value resistor R3, a fixed value resistor R4, a fixed value resistor R5, a fixed value resistor R6, a triode K1, a triode K2, a triode K3, an ohmmeter, a first coil, a second coil and a third coil, the circumference of a permanent magnet ring 10 is divided into three circular arcs with equal length, the fixed value resistor R1, the fixed value resistor R2 and the fixed value resistor R3 are respectively arranged at the intersection points of the circular arcs, the fixed value resistor R1, the fixed value resistor R2 and the fixed value resistor R3 are connected in series and then connected with the ohmmeter, the collector of the triode K1 is connected with one end of the fixed value resistor R1, the emitter of the triode K1 is connected with the other end of the fixed value resistor R1 through the fixed value resistor R4, the base of the triode K1 is connected with the first coil, the collector of the triode K2 is connected with one end of the, an emitting electrode of the triode K2 is connected with the other end of the constant value resistor R2 through the constant value resistor R5, a base electrode of the triode K2 is connected with the second coil, a collecting electrode of the triode K3 is connected with one end of the constant value resistor R3, an emitting electrode of the triode K3 is connected with the other end of the constant value resistor R3 through the constant value resistor R6, a base electrode of the triode K3 is connected with the third coil, and the rest of the structure is the same as that of the first embodiment. When the permanent magnet ring 10 is driven to rotate by the gear box rotating main shaft, the magnetic induction wire cuts the first coil, the second coil and the third coil, so that the coils generate electromotive force, the triode switch is conducted, the ohmmeter displays different readings, and the rotating speed of the permanent magnet ring 10 can be measured according to the known resistance value of the constant resistance and the reading display time of the ohmmeter.
In a third embodiment, compared with the first embodiment, the present embodiment adds a fixed resistor R1, a fixed resistor R2, a fixed resistor R3, a fixed resistor R4, a fixed resistor R5, a fixed resistor R6, a transistor K1, a transistor K2, a transistor K3, an ohmmeter, a first coil, a second coil, and a third coil, divides the circumference of the main shaft of the gear box into three arcs of equal length, installs a fixed resistor R1, a fixed resistor R2, and a fixed resistor R3 at the intersection of the arcs, connects the fixed resistor R1, the fixed resistor R2, and the fixed resistor R3 in series with the ohmmeter, connects the collector of the transistor K1 with one end of the fixed resistor R1, connects the emitter of the transistor K1 with the other end of the fixed resistor R1 through the fixed resistor R4, connects the base of the transistor K1 with the first coil, and connects the collector of the fixed resistor K2 with the collector of the fixed resistor R2, an emitting electrode of the triode K2 is connected with the other end of the constant value resistor R2 through the constant value resistor R5, a base electrode of the triode K2 is connected with the second coil, a collecting electrode of the triode K3 is connected with one end of the constant value resistor R3, an emitting electrode of the triode K3 is connected with the other end of the constant value resistor R3 through the constant value resistor R6, a base electrode of the triode K3 is connected with the third coil, and the rest of the structure is the same as that of the first embodiment. The rotation speed of the rotating main shaft of the gear box can be measured according to the known resistance value of the fixed-value resistor and the reading display time of the ohm meter.
In the fourth embodiment, compared with the first embodiment, the self-charging integrated rotary machine rotation speed sensor is additionally provided with a thermistor R1, a thermistor R2, a thermistor R3, a fixed value resistor R4, a fixed value resistor R5, a fixed value resistor R6, a triode K1, a triode K2, a triode K3, an ohmmeter, a first coil, a second coil and a third coil, the circumference of a main shaft of the gear box is divided into three arcs with equal length, the thermistor R1, the thermistor R2 and the thermistor R3 are respectively arranged at the intersection points of the arcs, the thermistor R1, the thermistor R2 and the thermistor R3 are connected with the ohmmeter after being connected in series, the collector of the triode K1 is connected with one end of the thermistor R1, the emitter of the triode K1 is connected with the other end of the thermistor R1 through the fixed value resistor R4, the base of the triode K1 is connected with the first coil, the collector of the triode K2 is connected with one end of the thermistor R2, an emitting electrode of the triode K2 is connected with the other end of the thermistor R2 through the fixed value resistor R5, a base electrode of the triode K2 is connected with the second coil, a collecting electrode of the triode K3 is connected with one end of the thermistor R3, an emitting electrode of the triode K3 is connected with the other end of the thermistor R3 through the fixed value resistor R6, a base electrode of the triode K3 is connected with the third coil, and the rest of the structure is the same as that of the first embodiment. According to the known resistance value of the constant value resistor and the change of the thermistor, the rotation speed and the temperature of the rotating main shaft of the gear box can be measured simultaneously by combining the number display of an ohm meter.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the scope of the claims.
Claims (8)
1. Self-charging integrated rotating machinery revolution speed sensor, comprising a gear box rotating main shaft and is characterized by also comprising
The device comprises a power generation device, a rectifying circuit, a filter circuit, a charging circuit module, a signal acquisition module and a signal processing module, wherein the power generation device is matched with a rotating main shaft of the gear box to generate alternating current, the power generation device is connected with the rectifying circuit, the rectifying circuit is connected with the filter circuit, the filter circuit is connected with the charging circuit module, the charging circuit module is connected with the signal processing module, the signal acquisition module is connected with the power generation device, the signal acquisition module acquires a voltage signal of the power generation device, the signal acquisition device is connected with the signal processing module, and the signal processing module calculates the rotating speed of the rotating main shaft of the gear box according to the received voltage signal.
2. The self-charging integrated rotating machine speed sensor according to claim 1, wherein the power generation device comprises a permanent magnet ring, an outer end cover, a bearing end cover, a stator coil, a stator core, an outer end cover bearing, a non-magnetic conductive outer sleeve, a positioning bearing, a dust seal ring, a circuit board packaging module and a connecting nut, the permanent magnet ring is installed on the side of a rotating main shaft of the gear box, the permanent magnet ring is matched with the rotating main shaft of the gear box and rotates through magnetic field coupling action to cut the magnetic induction wire to generate alternating current, the outer end cover is installed on one side of the permanent magnet ring through the outer end cover bearing, the bearing end cover is installed on the other side of the permanent magnet ring corresponding to the outer end cover, the non-magnetic conductive outer sleeve is installed on the surface of the permanent magnet ring in a covering manner, the stator, the positioning bearing is connected with the stator core, the positioning bearing is connected with the circuit board packaging module through a connecting nut, and the circuit board packaging module is connected with the bearing end cover through the dustproof sealing ring.
3. The self-charging integrated rotary machine speed sensor according to claim 2, wherein the permanent magnet ring comprises a plurality of permanent magnets, the number of the plurality of permanent magnets is an even number, and the magnetic poles of the adjacent 2 permanent magnets are opposite.
4. The self-charging integrated rotary machine speed sensor according to claim 1 or 2, wherein the charging circuit module comprises a voltage stabilizing circuit and an energy storage device.
5. The self-charging integrated rotary machine rotation speed sensor according to claim 1, wherein the rectifying circuit is a bridge rectifying circuit.
6. The self-charging integrated rotary machine speed sensor according to claim 4, wherein the energy storage device comprises an energy storage capacitor, a secondary battery or a lithium battery.
7. The self-charging integrated rotating machine speed sensor according to claim 1, further comprising a bluetooth transmission module connected with the signal processing module for transmitting a speed signal.
8. The self-charging integrated rotary machine speed sensor according to claim 1, wherein the filter circuit is a filter capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020811559.3U CN212379427U (en) | 2020-05-15 | 2020-05-15 | Self-charging integrated rotating machinery rotating speed sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020811559.3U CN212379427U (en) | 2020-05-15 | 2020-05-15 | Self-charging integrated rotating machinery rotating speed sensor |
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| CN212379427U true CN212379427U (en) | 2021-01-19 |
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| CN202020811559.3U Active CN212379427U (en) | 2020-05-15 | 2020-05-15 | Self-charging integrated rotating machinery rotating speed sensor |
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| CN (1) | CN212379427U (en) |
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- 2020-05-15 CN CN202020811559.3U patent/CN212379427U/en active Active
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