CN112615505A - Power supply device, sensor device and method for monitoring wheel fault - Google Patents

Power supply device, sensor device and method for monitoring wheel fault Download PDF

Info

Publication number
CN112615505A
CN112615505A CN202011577761.5A CN202011577761A CN112615505A CN 112615505 A CN112615505 A CN 112615505A CN 202011577761 A CN202011577761 A CN 202011577761A CN 112615505 A CN112615505 A CN 112615505A
Authority
CN
China
Prior art keywords
annular channel
power supply
magnetic member
coil
sensor
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.)
Pending
Application number
CN202011577761.5A
Other languages
Chinese (zh)
Inventor
孙亚新
李岩峰
田华
赵峥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BEIJING JYD DIGITAL TECHNOLOGY CO LTD
Original Assignee
BEIJING JYD DIGITAL TECHNOLOGY CO LTD
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BEIJING JYD DIGITAL TECHNOLOGY CO LTD filed Critical BEIJING JYD DIGITAL TECHNOLOGY CO LTD
Priority to CN202011577761.5A priority Critical patent/CN112615505A/en
Publication of CN112615505A publication Critical patent/CN112615505A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K16/00Machines with more than one rotor or stator
    • H02K16/005Machines with only rotors, e.g. counter-rotating rotors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K7/00Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807Rotary generators
    • H02K7/1846Rotary generators structurally associated with wheels or associated parts
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K7/00Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807Rotary generators
    • H02K7/1861Rotary generators driven by animals or vehicles

Abstract

The application relates to the technical field of sensors, in particular to a power supply device, a sensor device and a method for monitoring faults of wheels. The power supply device includes a magnetic member and a coil member; the coil member comprises an annular channel and a conductive coil mounted in the annular channel; the magnetic member is located within the annular channel; the coil component is connected with the moving equipment and driven by the moving equipment to rotate; a frictional force between the magnetic member and the annular channel is less than a preset value to enable the coil member to rotate relative to the magnetic member, and the conductive coil cuts a magnetic induction line of the magnetic member to generate electric energy. The application provides a power supply unit utilizes magnetism component and coil component to form the velocity difference in the direction of rotation and produces the electric energy, and the mechanical energy that rotating equipment such as rational utilization wheel produced to turn into the electric energy with it, thereby realize the power supply to other components. Simple structure is effective, the more energy can be saved.

Description

Power supply device, sensor device and method for monitoring wheel fault
Technical Field
The application relates to the technical field of sensors, in particular to a power supply device, a sensor device and a method for monitoring faults of wheels.
Background
In the running process of the vehicle, the states of the wheels need to be monitored in real time, and the running safety of the vehicle is prevented from being influenced by the fault conditions of cracks and the like of the wheels.
If the existing detection device is installed at the rotating wheel, an independent power supply with larger capacity needs to be equipped for the detection device, or the detection device needs to be electrically connected with a power supply device of a vehicle through a connecting wire.
Disclosure of Invention
The application aims to provide a power supply device, a sensor device and a wheel fault monitoring method, which are used for supplying electric energy to devices such as the sensor device.
The present application provides a power supply device including a magnetic member and a coil member;
the coil member comprises an annular channel and a conductive coil mounted in the annular channel;
the magnetic member is located within the annular channel; the coil component is connected with the moving equipment and driven by the moving equipment to rotate;
a frictional force between the magnetic member and the annular channel is less than a preset value to enable the coil member to rotate relative to the magnetic member, and the conductive coil cuts a magnetic induction line of the magnetic member to generate electric energy.
In the above technical solution, further, the annular channel is a circular channel, and a cross section of the annular channel is circular;
the magnetic member is spherical.
In the above technical solution, further, the annular channel is an annular vacuum tube, and an inner diameter of the annular channel is adapted to an outer diameter of the magnetic member;
or the annular channel is a non-vacuum tube, the inner wall of the annular channel is provided with at least one airflow channel, and the airflow channel extends along a path formed by the annular channel.
In the above technical solution, further, the conductive coil is wound around an outer wall of the annular channel.
In the above technical solution, further, the number of the conductive coils is at least one;
when the number of the conductive coils is multiple, the conductive coils are wound on the outer wall of the annular channel at intervals along the circumferential direction of the annular channel.
The application also provides a sensor device, which comprises the power supply device.
In the above technical solution, further, the power supply device further includes an induction component, a controller and a communication device electrically connected to the power supply device;
the sensing assembly is used for detecting at least one parameter information of the sports equipment; the controller is in communication connection with the sensing assembly and outputs a signal according to at least one parameter information;
the communication device is in communication connection with the controller so as to perform wireless transmission on the signals; and/or the controller is provided with a transmission interface for connecting with an external device to transmit the signal to the external device.
In the above technical solution, further, the sensing assembly includes a rotation speed sensor and/or an acceleration sensor and/or a temperature sensor and/or an acoustic sensor and/or a current-voltage sensor and/or an attitude sensor.
In the above technical solution, further, the mobile phone further comprises a housing, wherein the housing comprises a base and a cover;
the cover body is buckled on the base, and a first accommodating space and a second accommodating space are formed between the cover body and the base;
the first accommodating space is located in the circumferential direction of the second accommodating space, the first accommodating space is annular and used for accommodating the coil component, and the second accommodating space is used for accommodating the induction assembly, the controller and a circuit board of the communication device.
The present application also provides a method for monitoring a wheel failure, applied to a sensor device according to the above solution, the method comprising:
acquiring at least one detection parameter;
and when one of the detection parameters exceeds the corresponding preset range, sending out warning information.
Compared with the prior art, the beneficial effect of this application is:
the application provides a power supply unit utilizes magnetism component and coil component to form the velocity difference in the direction of rotation and produces the electric energy, and the mechanical energy that rotating equipment such as rational utilization wheel produced to turn into the electric energy with it, thereby realize the power supply to other components. Simple structure is effective, the more energy can be saved.
The application also provides a sensor device, which comprises the power supply device. Based on the above analysis, the sensor device also has the above beneficial effects, and the details are not repeated herein.
The application also provides a fault monitoring method for the wheel, which is applied to the sensor device according to the scheme, and has the beneficial effects, and the method is not repeated.
Drawings
In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a power supply device provided in the present application in a first view;
FIG. 2 is a cross-sectional schematic view of a coil member provided herein;
fig. 3 is a schematic structural diagram of a power supply device provided in the present application in a second view;
fig. 4 is a schematic structural diagram of a cover provided in the present application.
In the figure: 101-a magnetic member; 102-a coil member; 103-an annular channel; 104-a conductive coil; 105-an airflow channel; 106-a communication device; 107-a base; 108-a cover; 109-a first accommodation space; 110-a second accommodation space; 111-a carrier; 112-ring-shaped portion; 113-a gap; 114-a sealing ring; 115-a seal groove; 116-a fixation hole; 117-circuit board.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Example one
Referring to fig. 1 to 4, the present application provides a power supply device including a magnetic member 101 and a coil member 102; the coil member 102 includes a loop-shaped passage 103 and a conductive coil 104 installed in the loop-shaped passage 103; the magnetic member 101 is located within the annular channel 103; the coil component 102 is connected with the moving equipment and driven by the moving equipment to rotate; when the friction force between the magnetic member 101 and the annular channel 103 is smaller than a predetermined value, the coil member 102 can rotate relative to the magnetic member 101 under the combined action of the friction force, the supporting force of the annular channel 103 on the magnetic member 101 and the gravity of the magnetic member 101, so that the conductive coil 104 cuts the magnetic induction lines of the magnetic member 101 to generate electric energy.
Specifically, the power supply device provided by the application can be applied to sports equipment which does rotational motion, such as wheels of a vehicle, and the like, and generates electric energy by utilizing the electromagnetic induction principle, so that the power supply device can convert mechanical energy of the sports equipment into the electric energy. Specifically, the power supply device comprises a magnetic member 101 and a coil member 102, wherein the coil member 102 comprises a ring-shaped channel 103, the ring-shaped channel 103 forms a closed loop so that the magnetic member 101 can move along the loop, and the coil member 102 is connected with a moving device which can drive the ring-shaped channel 103 to rotate. When the annular channel 103 rotates, the friction between the annular channel 103 and the magnetic member 101 is small, and the magnetic member 101 cannot be driven by the friction to move synchronously. Therefore, the magnetic member 101 positioned in the annular channel 103 forms a speed difference with the annular channel 103 in the rotation direction, and the conductive coil 104 installed in the annular channel 103 and rotating synchronously with the annular channel 103 can cut the magnetic induction lines of the magnetic member 101, thereby generating electric energy.
According to the power supply device, the magnetic component 101 and the coil component 102 form a speed difference in the rotating direction to generate electric energy, mechanical energy generated by rotating equipment such as wheels is reasonably utilized and converted into the electric energy, and therefore power supply to other elements is achieved. Simple structure is effective, the more energy can be saved.
In an optional scheme of this embodiment, the annular channel 103 is a circular channel, and the cross section of the annular channel 103 is circular; the magnetic member 101 is spherical.
In this embodiment, the annular channel 103 is a circular ring channel, and when the wheel rotates, the annular channel 103 provides a circular motion path for the magnetic member 101, so that the magnetic member 101 moves more smoothly. The magnetic member 101 is spherical, and the cross section of the annular channel 103 is circular, so that the friction force between the magnetic member 101 and the annular channel 103 can be further reduced.
In an alternative of this embodiment, the annular channel 103 is an annular vacuum tube, and the inner diameter of the annular channel 103 is adapted to the outer diameter of the magnetic member 101; or the annular channel 103 is a non-vacuum tube, at least one airflow channel 105 is disposed on the inner wall of the annular channel 103, and the airflow channel 105 extends along the path formed by the annular channel 103.
In this embodiment, the annular channel 103 includes two schemes: first, the annular channel 103 is an annular vacuum tube, that is, a vacuum is pumped into the sealed annular channel 103 to reduce air in the annular channel 103, and when the annular channel 103 rotates, the air resistance between the annular channel 103 and the magnetic member 101 can be reduced by the vacuum state, so that the speed difference between the two is increased in the rotating direction;
secondly, when the annular passage 103 is in a non-vacuum state, in order to reduce air resistance, an air flow passage 105 is opened on the inner wall of the annular passage 103, that is, around the magnetic member 101, and the air flow follows the rounded contour of the magnetic member 101 and flows around the magnetic member 101, and the air flow passage 105 provides a flow space for the air flow. Referring to fig. 2, one configuration of the air flow channel 105 is shown, but the air flow channel 105 is not limited to the configuration shown in the figure, and may be provided in other configurations.
In an alternative scheme of this embodiment, the magnetic member 101 is located in the annular channel 103, and the magnetic density is stronger at a position closer to the annular channel 103, and the conductive coil 104 is wound on the outer wall of the annular channel 103, so that the conductive coil 104 can cut more magnetic induction lines, thereby generating more electric energy.
In an alternative embodiment, the number of conductive coils 104 is at least one; when the number of the conductive coils 104 is plural, the plural conductive coils 104 are wound around the outer wall of the annular passage 103 at intervals along the circumferential direction of the annular passage 103.
In this embodiment, when the annular channel 103 rotates, the conductive coils 104 wound around the annular channel 103 can cut the magnetic induction lines of the magnetic member 101, and the conductive coils 104 cooperate to form more electric energy, so as to achieve a better power supply effect.
In an optional scheme of this embodiment, the conductive coils 104 are uniformly arranged to achieve stability of electric energy output.
In an optional scheme of the embodiment, the energy storage device further comprises an energy storage device, specifically an energy storage battery; the energy storage battery is electrically connected with the coil component 102 through the power management circuit so as to store electric energy into the energy storage battery, supply power for other components through the energy storage battery, output electric energy when the sports equipment is not in a motion state, and the power supply is more stable.
Example two
An embodiment of the present application provides a sensor device, which includes the power supply device of the above embodiment, and therefore, all the beneficial technical effects of the power supply device of the above embodiment are achieved, and are not described herein again.
In an alternative of this embodiment, the sensor device further includes a sensing assembly electrically connected to the power supply device, a controller and a communication device 106; the sensing assembly is used for detecting at least one parameter information of the sports equipment; the controller is in communication connection with the sensing assembly and outputs a signal according to at least one parameter information, wherein the signal specifically comprises state information, alarm information and the like; the communication device 106 is in communication connection with the controller to perform wireless transmission on the signals; and/or the controller is provided with a transmission interface for connecting with an external device to transmit signals to the external device.
In this embodiment, the communication device 106 may include two modes of wireless transmission and wired transmission, wherein the communication device 106 of wireless transmission includes at least one of a beidou antenna, a bluetooth antenna, a radio frequency identifier, a 4G or 5G transmitter, and an LTE-M communication device, so that information can be transmitted by using multiple wireless transmission modes to transmit the detection result in time; or the wired transmission of information is realized through the transmission interface.
In an optional solution of this embodiment, the sensing component includes a rotation speed sensor and/or an acceleration sensor and/or a temperature sensor and/or an acoustic sensor and/or a current-voltage sensor and/or an attitude sensor, etc.
In this embodiment, when a wheel fails, vibration between the axle and the bearing causes changes in motion parameters (such as rotation speed, acceleration), temperature, noise or motion attitude, and the sensors monitor the relevant parameters in real time, and further monitor and compare the running state of the vehicle (such as temperature and vibration of the axle) to provide data support for a maintenance system, thereby ensuring safe and reliable running of the vehicle.
In an optional solution of this embodiment, the sensor device further includes a housing, and the housing includes a base 107 and a cover 108; the base 107 is connected with the sports equipment, the cover 108 is buckled on the base 107, and a first accommodating space 109 and a second accommodating space 110 are formed between the cover and the base 107; the first accommodating space 109 is located in the circumferential direction of the second accommodating space 110, the first accommodating space 109 is annular and is used for accommodating the coil component 102, and the second accommodating space 110 is used for accommodating the circuit board 117 of the induction assembly, the controller and the communication device 106.
In this embodiment, the base 107 includes a carrier portion 111 in the middle and a circumferential ring portion 112, and a circuit board 117 provided with a controller, electric components, and related circuits may be mounted on the carrier portion 111, and the coil member 102 is mounted on the ring portion 112. The bearing portion 111 and the annular portion 112 form a gap 113, the cover 108 is formed with an insertion portion to be inserted into the gap 113, and the cover 108 and the base 107 are partitioned to form a first accommodating space 109 and a second accommodating space 110.
The first accommodation space 109 is ring-shaped to fit the shape of the coil member 102, thereby achieving a reliable fixation of the coil member 102. A second receiving space 110 is defined between the bearing portion 111 and the cover 108, and preferably, the bearing portion 111 or the cover 108 is provided with a sealing groove 115 for installing a sealing ring 114 defined around the circuit board 117 to prevent water from entering the circuit board 117.
Optionally, the base 107 and/or the cover 108 are provided with fastening holes 116 for connecting the sensor device to the sports apparatus.
EXAMPLE III
The third embodiment of the present application provides a method for monitoring a wheel fault, which is applied to the sensor device of the second embodiment, and the method includes:
acquiring at least one detection parameter; the detection parameters are respectively collected by the rotating speed sensor, the acceleration sensor, the temperature sensor, the acoustic sensor and the attitude sensor;
when one of the detection parameters exceeds the corresponding preset range, sending out information such as early warning, alarming and the like; the acquired detection parameters are processed, the detection result is output, and the detection result is timely transmitted through the communication device 106.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application. Moreover, those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the application and form different embodiments.

Claims (10)

1. A power supply device characterized by comprising a magnetic member and a coil member;
the coil member comprises an annular channel and a conductive coil mounted in the annular channel;
the magnetic member is located within the annular channel; the coil component is connected with the moving equipment and driven by the moving equipment to rotate;
a frictional force between the magnetic member and the annular channel is less than a preset value to enable the coil member to rotate relative to the magnetic member, and the conductive coil cuts a magnetic induction line of the magnetic member to generate electric energy.
2. The power supply device according to claim 1, wherein the annular channel is a circular channel, and the cross section of the annular channel is circular;
the magnetic member is spherical.
3. The power supply of claim 2, wherein the annular channel is an annular vacuum tube, the inner diameter of the annular channel fitting the outer diameter of the magnetic member;
or the annular channel is a non-vacuum tube, the inner wall of the annular channel is provided with at least one airflow channel, and the airflow channel extends along a path formed by the annular channel.
4. The power supply of claim 1, wherein the conductive coil is disposed around an outer wall of the annular channel.
5. The power supply of claim 4, wherein the number of said conductive coils is at least one;
when the number of the conductive coils is multiple, the conductive coils are wound on the outer wall of the annular channel at intervals along the circumferential direction of the annular channel.
6. A sensor device, characterized in that it comprises a power supply device according to any one of claims 1 to 5.
7. The sensor device of claim 6, further comprising a sensing assembly electrically connected to the power supply, a controller, and a communication device;
the sensing assembly is used for detecting at least one parameter information of the sports equipment; the controller is in communication connection with the sensing assembly and outputs a signal according to at least one parameter information;
the communication device is in communication connection with the controller so as to perform wireless transmission on the signals; and/or the controller is provided with a transmission interface for connecting with an external device to transmit the signal to the external device.
8. Sensor device according to claim 7, characterized in that the sensing component comprises a rotational speed sensor and/or an acceleration sensor and/or a temperature sensor and/or an acoustic sensor and/or a current-voltage sensor and/or an attitude sensor.
9. The sensor device of claim 7, further comprising a housing comprising a base and a cover;
the cover body is buckled on the base, and a first accommodating space and a second accommodating space are formed between the cover body and the base;
the first accommodating space is located in the circumferential direction of the second accommodating space, the first accommodating space is annular and used for accommodating the coil component, and the second accommodating space is used for accommodating the induction assembly, the controller and a circuit board of the communication device.
10. A method of fault monitoring a wheel, for use with a sensor arrangement according to any of claims 7 to 9, the method comprising:
acquiring at least one detection parameter;
and when one of the detection parameters exceeds the corresponding preset range, sending out warning information.
CN202011577761.5A 2020-12-28 2020-12-28 Power supply device, sensor device and method for monitoring wheel fault Pending CN112615505A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011577761.5A CN112615505A (en) 2020-12-28 2020-12-28 Power supply device, sensor device and method for monitoring wheel fault

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011577761.5A CN112615505A (en) 2020-12-28 2020-12-28 Power supply device, sensor device and method for monitoring wheel fault

Publications (1)

Publication Number Publication Date
CN112615505A true CN112615505A (en) 2021-04-06

Family

ID=75248544

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011577761.5A Pending CN112615505A (en) 2020-12-28 2020-12-28 Power supply device, sensor device and method for monitoring wheel fault

Country Status (1)

Country Link
CN (1) CN112615505A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115469129A (en) * 2022-10-28 2022-12-13 国网山东省电力公司高密市供电公司 Alternating current power grid fault current waveform recording device and recording method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115469129A (en) * 2022-10-28 2022-12-13 国网山东省电力公司高密市供电公司 Alternating current power grid fault current waveform recording device and recording method

Similar Documents

Publication Publication Date Title
CN107031681B (en) Track condition monitoring sensor apparatus and method of detecting condition of track bearing
US8686850B2 (en) Wireless earthquake alarm based on mems accelerometers
CN113039141B (en) Conveyor idler monitoring apparatus, systems, and methods
US20150211580A1 (en) Bearing power embedded generating configuration
CN112615505A (en) Power supply device, sensor device and method for monitoring wheel fault
CN109050895B (en) Multi-rotor unmanned aerial vehicle
US8640545B2 (en) Vibration sensor with mechanical isolation member
KR20150004851A (en) Module for determining an operating characteristic of a bearing
JP4032703B2 (en) Bearing device with sensor
CN103640650A (en) Anti-theft device and method for electric vehicle and storage battery
CN213783106U (en) Power supply device and sensor device
CN109333161A (en) A kind of intelligent bolt monitoring system for machine tool main shaft transmission part fault detection
CN213455835U (en) Vibration state monitoring device for rotating equipment
CN112615506A (en) Power supply device, sensor device and method for monitoring wheel fault
CN109490703A (en) A kind of sensor-based buried cable detection system
CN100410620C (en) On-line mornitoring device for magnetic pump hearing gap
CN111001566A (en) Vibrating screen state monitoring device and vibrating screen
CN213693418U (en) Power supply device and sensor device
CN112622978A (en) Sensor device, wheel and wheel fault monitoring method
CN215214417U (en) Intelligent bearing of wind power motor
CN112564411A (en) Power supply unit and wheel pair sensing system
CN210034196U (en) Monitoring and early warning system for automobile intelligent hub bearing unit
CN110631831B (en) State monitoring system
KR20220011124A (en) Condition monitoring system and method of through-hole slip ring
CN213921037U (en) Sensor device and wheel

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination