CN113565867B - Bearing roller self-powered monitoring device for gravitational potential energy power generation - Google Patents
Bearing roller self-powered monitoring device for gravitational potential energy power generation Download PDFInfo
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- CN113565867B CN113565867B CN202110859044.XA CN202110859044A CN113565867B CN 113565867 B CN113565867 B CN 113565867B CN 202110859044 A CN202110859044 A CN 202110859044A CN 113565867 B CN113565867 B CN 113565867B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/36—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
- F16C19/361—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers with cylindrical rollers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G3/00—Other motors, e.g. gravity or inertia motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/34—Rollers; Needles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
- F16C41/004—Electro-dynamic machines, e.g. motors, generators, actuators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2233/00—Monitoring condition, e.g. temperature, load, vibration
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
Abstract
The invention provides a self-powered monitoring device for a bearing roller for gravitational potential energy power generation, which comprises an outer ring, an inner ring, a roller, a retainer, an energy acquisition coil, a magnet, a weight, a power management module, an energy storage battery pack, a state monitoring circuit and an annular transmitting antenna, wherein the energy acquisition coil is arranged on the outer ring; the surface of the roller is uniformly provided with an annular inner groove, and the energy-collecting coil, the magnet and the weight are all arranged in the annular inner groove; the weight is arranged on the magnet, and the magnet is positioned in the energy acquisition coil; stepped grooves are respectively formed in two end faces of the roller, and the power management module and the energy storage battery pack are fixed in the stepped grooves; the power supply management module is connected with the energy storage battery pack; the annular transmitting antenna is fixed on the end surface of the roller, a through cavity is arranged in the roller, and the state monitoring circuit is arranged on the inner wall of the through cavity; the annular transmitting antenna is connected with the state monitoring circuit. The invention fully utilizes the volume advantage of the large bearing to solve the problem that the fault information of the large bearing is difficult to capture.
Description
Technical Field
The invention relates to the technical field of bearings, in particular to a self-powered monitoring device for a bearing roller, which generates electricity by using gravitational potential energy.
Background
With the continuous development of manufacturing intellectualization and industrialization, the rolling bearing is one of the core parts in the heavy industry field, and the damage degree of the rolling bearing is closely related to the operation safety of high-end large-scale mechanical equipment, so that the establishment of a reliable bearing state monitoring system is very important. At present, the traditional bearing monitoring device still adopts to settle the sensor on the spare part casing that is close to the bearing, the fault signal that acquires covers in each spare part and the vibration signal that external noise formed through complicated transfer path, for large-scale bearing, its rotational speed is low, the big characteristic of load makes trouble information more difficult to catch, the monitoring scheme of bearing built-in sensor is proposed in the prior art, the interference of complicated transfer path to bearing fault signal has been reduced, the degree of accuracy of large-scale bearing state monitoring has been improved, however, the spatial structure and the operating efficiency of bearing will directly be influenced in sensor and monitoring circuit's arrangement, simultaneously, the transmission of data and the power supply of circuit receive the restriction, modes such as external power source or battery power supply are difficult to satisfy long period real-time monitoring demand.
Patent document No. CN110552956B discloses a sensing data acquisition and wireless transmission device inside a fully self-powered rolling bearing, where the bearing includes a bearing inner ring, a bearing rolling body, a retainer for the rolling body, and a bearing outer ring, and is characterized by further including a sensor and a conditioning circuit thereof, a sensing data acquisition/output device composed of a sensing data acquisition circuit and a sensing data wireless output circuit, and a self-powered power supply and a wireless signal repeater composed of an energy acquisition coil, an electric energy generator and a power supply management circuit. Patent document CN103982541B discloses a large-scale high-speed tapered roller bearing with self-powered monitoring for electric power facilities, belonging to the field of bearing and monitoring technology. Excitation magnets are embedded at two ends of the cone, stepped shafts are arranged at two ends of the inner ring, and a stepped hole is arranged at the left end of the outer ring; a disk body is arranged on the stepped shaft at the right end of the inner ring and in the stepped hole at the left end of the outer ring, a fan-shaped sinking cavity is arranged on the disk body, and a guide hole is arranged at the bottom of the sinking cavity; a metal film, a pressing plate and a circuit board are sequentially fixed on the tray body, a through cavity is arranged on the pressing plate, and a sensor is arranged on the side wall of the through cavity; the metal film and the piezoelectric film adhered to the surface of the metal film form an energy harvester, the center of the energy harvester is riveted with a stimulated magnet, and the stimulated magnet is sleeved in the guide hole. Patent document No. CN112747032A discloses a self-generating monitoring roller bearing, in which an outer ring is mounted on an inner ring, a shell bottom is mounted at the end of the outer ring, a circuit board, a sensor and a binding post are mounted on the shell bottom, an auxiliary electrode is arranged on the shell bottom or the outer ring, and the sensor, the binding post and the auxiliary electrode are connected with the circuit board through different lead groups; the outer ring is internally provided with an electrode, the outer ring is of a split structure or an integral structure, the electrode is composed of an electrode ring, electrode fingers and a lead terminal, the electrode ring and the electrode fingers are embedded in the outer ring, and the roller is not overlapped with the electrode ring in the length direction and is completely overlapped with the electrode fingers.
However, the above patent documents have a drawback that the bearing space structure is largely changed and the power supply to the monitoring system in the roller cannot be directly performed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a self-powered monitoring device for a bearing roller for generating electricity by gravitational potential energy.
The invention provides a self-powered monitoring device for a bearing roller for gravitational potential energy power generation, which comprises an outer ring, an inner ring, a roller, a retainer, an energy acquisition coil, a magnet, a weight, a power management module, an energy storage battery pack, a state monitoring circuit and an annular transmitting antenna, wherein the energy acquisition coil is arranged on the outer ring;
annular inner grooves are uniformly formed in the surfaces of the rollers, and the energy acquisition coils, the magnets and the weights are all arranged in the annular inner grooves; the weight is arranged on the magnet, and the magnet is positioned in the energy acquisition coil;
stepped grooves are formed in two end faces of the roller respectively, and the power management module and the energy storage battery pack are fixed in the stepped grooves; the power supply management module is connected with the energy storage battery pack;
the annular transmitting antenna is fixed on the end surface of the roller, a through cavity is arranged in the roller, and the state monitoring circuit is arranged on the inner wall of the through cavity; the annular transmitting antenna is connected with the state monitoring circuit.
Preferably, the surface of the roller is provided with a plurality of said annular inner grooves.
Preferably, a plurality of the annular inner grooves are uniformly spaced on the surface of the roller.
Preferably, adjacent said annular inner grooves are spaced 90 ° apart.
Preferably, one end of the magnet, which is close to the bottom side wall of the annular inner groove, is provided with a damping spring in a connected manner, and one end of the damping spring, which is far away from the magnet, is provided on the bottom side wall of the annular inner groove in a connected manner.
Preferably, the weight is provided with a through hole.
Preferably, the weight is made of non-magnetic material.
Preferably, a threaded sealing cover is arranged at the notch of the annular inner groove.
Preferably, the notch of the stepped groove is provided with an end face thread sealing cover.
Preferably, the opening of the through cavity is provided with a through cavity thread sealing cover.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention fully utilizes the volume advantage of the large bearing to solve the problem that the fault information of the large bearing is difficult to capture;
2. according to the invention, the monitoring device is arranged in the bearing roller, so that the influence of an additional sensor and a circuit on the space structure and the operation efficiency of the bearing is reduced;
3. under the condition of no need of an external power supply or battery power supply, the self-powered real-time monitoring function of the large-scale bearing is realized by generating electric energy required by the monitoring device by means of the gravitational potential energy of the magnet when the roller moves.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a cross-sectional view of a bearing structure of the present invention;
FIG. 2 is a front view of a bearing roller configuration of an embodiment;
FIG. 3 is a side view of a bearing roller structure of an embodiment;
FIG. 4 is a schematic view of a bearing according to an embodiment.
The figures show that:
Energy-collecting coil 5 annular transmitting antenna 14
Annular internal groove 16 of weight 7
Damping spring 8 step groove 17
Screw thread cover 9
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
As shown in fig. 1 to 3, the self-powered monitoring device for a gravitational potential energy power generation bearing roller provided by the invention comprises an outer ring 1, an inner ring 2, a roller 3, a retainer 4, an energy collection coil 5, a magnet 6, a weight 7, a power management module 10, an energy storage battery pack 11, a state monitoring circuit 12 and an annular transmitting antenna 14, wherein an annular inner groove 16 is uniformly formed on the surface of the roller 3, and the energy collection coil 5, the magnet 6 and the weight 7 are all arranged in the annular inner groove 16; the weight 7 is arranged on the magnet 6, the magnet 6 is positioned in the energy collecting coil 5, two end faces of the roller 3 are respectively provided with a step groove 17, and the power supply management module 10 and the energy storage battery pack 11 are fixed in the step grooves 17; the power management module 10 is connected with the energy storage battery pack 11, the annular transmitting antenna 14 is fixed on the end face of the roller 3, a through cavity is arranged in the roller 3, and the state monitoring circuit 12 is arranged on the inner wall of the through cavity; the loop transmitting antenna 14 is connected to the condition monitoring circuit 12. The notch of the annular inner groove 16 is provided with a threaded cover 9. The notch of the stepped groove 17 is provided with an end face thread sealing cover 13. The opening of the through cavity is provided with a through cavity thread sealing cover 15.
The surface of the roller 3 is provided with a plurality of annular inner grooves 16, the plurality of annular inner grooves 16 being evenly spaced on the surface of the roller 3 with adjacent annular inner grooves 16 being spaced 90 apart. The end of the magnet 6 close to the bottom side wall of the annular inner groove 16 is provided with a damping spring 8 in a connecting way, and the end of the damping spring 8 far away from the magnet 6 is arranged on the bottom side wall of the annular inner groove 16 in a connecting way. The weight 7 is provided with a through hole, and the weight 7 adopts a non-magnetic material.
The invention is mainly applied to the main bearing of large machinery: the bearing comprises a large bearing, namely a bearing with the nominal outer diameter size range of 200 mm and 430mm, and an extra-large bearing, namely a bearing with the nominal outer diameter size range of more than 440 mm. The self-powered device is also arranged in the roller mainly because the monitoring device is arranged in the roller, the monitoring device and the roller are arranged in the same moving body, so that direct power supply is facilitated, and if the monitoring device and the roller are arranged in different moving bodies and cannot deal with the problem of wire arrangement, the large-sized bearing and the super-sized bearing are convenient to install.
Example 1:
the utility model provides a large-scale bearing roller self-power monitoring devices that gravitational potential energy generated electricity, bearing include outer lane, inner circle, roller and holder, its characterized in that: the bearing also comprises an energy collecting coil, a magnet, a heavy block, a damping spring, a thread sealing cover, a power supply management module, an energy storage battery pack, a state monitoring circuit, an annular transmitting antenna, an end face thread sealing cover and a through cavity thread sealing cover.
The surface of roller evenly is equipped with annular inside groove, adopts energy coil, magnet, pouring weight and damping spring to set up in annular inside groove, and the both ends face of roller is equipped with the ladder groove, and power management module and energy storage battery pack are fixed in the ladder groove, and annular transmitting coil is fixed in the roller terminal surface, is equipped with one in the roller and leads to the chamber, and state monitoring circuit installs in leading to intracavity wall, and in addition, the screw thread closing cap sets up in each notch department.
The surface of the roller is uniformly provided with a plurality of inner grooves, the adjacent inner grooves are spaced by 90 degrees and are not limited in the same plane, the energy collecting coil is arranged in the inner grooves, the heavy blocks are fixed at the two ends of the magnet and are placed in the energy collecting coil, the roller is driven to move by the rotation of the inner rings, the magnet reciprocates under the action of gravity along with the heavy blocks, and the magnetic flux of the energy collecting coil continuously changes to generate electric energy. The weight is a high-density non-magnetic material and used for increasing gravitational potential energy of the magnet, a through hole is formed in the weight to prevent sealing gas from blocking the movement of the magnet, the damping spring is arranged in the inner groove to slow down the impact of the weight on the roller, and the thread sealing cover is arranged at the port of the inner groove to prevent oil from permeating.
The roller both ends face sets up the ladder groove, has arranged power management module and energy storage group battery in proper order, adopts the energy coil to insert the power management module power supply through the wire, and power management module handles the electric current and stores in the energy storage group battery, for the power supply of state monitoring circuit, and the terminal surface screw thread closing cap sets up in ladder groove port department and prevents the fluid infiltration, and annular transmitting antenna installs in the roller terminal surface for transmission roller state data.
The roller is equipped with one and leads to the chamber, and state monitoring circuit installs in leading to intracavity wall, and the last sensor of state monitoring circuit is used for gathering roller state data, carries out fault diagnosis to the host computer through annular transmitting antenna real-time transmission, leads to inside the chamber screw thread closing cap set up and prevent that fluid infiltration roller from leading to the chamber both ends, plays the guard action to the circuit board.
Example 2:
as shown in fig. 1 to 4, the structural schematic diagrams of a self-powered monitoring device for a large bearing roller with gravitational potential energy power generation according to a preferred embodiment of the present invention include: outer lane, inner circle, roller, holder adopt can coil, magnet, pouring weight, damping spring, screw thread closing cap, power management module, energy storage group battery, state monitoring circuit, terminal surface screw thread closing cap, annular transmitting antenna, lead to chamber screw thread closing cap, wherein:
as shown in fig. 1, the surface of the roller is uniformly provided with eight annular inner grooves for installing an energy collecting coil, a magnet, a weight, a damping spring and a thread sealing cover, two end faces of the roller are provided with stepped grooves, a power management module, an energy storage battery pack and an end face thread sealing cover are sequentially fixed in the stepped grooves, an annular transmitting antenna is fixed on the end face of the roller, the roller is provided with a through cavity, a state monitoring circuit is installed on the inner wall of the through cavity, and the through cavity thread sealing covers are arranged at two ends of the through cavity.
As shown in fig. 2 and 3, eight inner grooves are uniformly formed in the surface of the roller, the adjacent inner grooves are spaced by 90 degrees and are respectively arranged in two planes, the energy acquisition coil is arranged in the inner grooves, the weights are fixed at two ends of the magnet and are placed in the energy acquisition coil, the roller is driven to move by the rotation of the inner rings, and the magnet reciprocates under the action of gravity along with the weights, so that the magnetic flux of the energy acquisition coil continuously changes to generate electric energy.
As shown in figure 1, the weight is a high-density non-magnetic material and is used for increasing the gravitational potential energy of the magnet, a through hole is formed in the weight to prevent sealing gas from blocking the movement of the magnet, a damping spring is arranged in the inner groove to slow down the impact of the weight on the roller, and a threaded sealing cover is arranged at the port of the inner groove to prevent oil from permeating.
As shown in fig. 1, stepped grooves are formed in two end faces of the roller, the power management module and the energy storage battery pack are sequentially arranged, the energy acquisition coil is connected to the power management module through a wire to supply power, the power management module processes current and stores the current in the energy storage battery pack to supply power for the state monitoring circuit, the end face threaded sealing cover is arranged at a port of the stepped grooves to prevent oil from permeating, and the annular transmitting antenna is arranged on the end face of the roller and used for transmitting state data of the roller.
As shown in figure 2, the roller is provided with a through cavity, the state monitoring circuit is installed on the inner wall of the through cavity, a sensor on the state monitoring circuit is used for collecting roller state data, fault diagnosis is carried out on the roller through real-time transmission of the annular transmitting antenna to an upper computer, and the through cavity threaded sealing covers are arranged at two ends of the through cavity to prevent oil from permeating into the roller, so that the circuit board is protected.
The working principle is as follows:
when the bearing operates, the roller rotates, the magnet in the inner groove reciprocates along with the weight under the action of gravity, so that the magnetic flux of the energy acquisition coil changes to generate electric energy, the electric energy is processed by the power management module and collected in the energy storage battery pack, the sensor on the state monitoring circuit acquires roller state data and transmits the roller state data to the host computer for processing through the annular transmitting antenna, and therefore the self-powered real-time monitoring function of the large-sized bearing is achieved.
The invention provides a self-powered monitoring device for a large bearing roller with gravitational potential energy power generation, which aims to solve the problem that the existing bearing monitoring system is difficult to meet the real-time monitoring requirement of the large bearing.
Those skilled in the art will appreciate that, in addition to implementing the system and its various devices, modules, units provided by the present invention as pure computer readable program code, the system and its various devices, modules, units provided by the present invention can be fully implemented by logically programming method steps in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers and the like. Therefore, the system and various devices, modules and units thereof provided by the invention can be regarded as a hardware component, and the devices, modules and units included in the system for realizing various functions can also be regarded as structures in the hardware component; means, modules, units for performing the various functions may also be regarded as structures within both software modules and hardware components for performing the method.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. A self-powered monitoring device for a bearing roller for gravitational potential energy power generation comprises an outer ring (1), an inner ring (2), a roller (3) and a retainer (4), and is characterized by further comprising an energy acquisition coil (5), a magnet (6), a weight (7), a power supply management module (10), an energy storage battery pack (11), a state monitoring circuit (12) and an annular transmitting antenna (14);
an annular inner groove (16) is uniformly formed in the surface of the roller (3), and the energy acquisition coil (5), the magnet (6) and the weight (7) are arranged in the annular inner groove (16); the weight (7) is arranged on the magnet (6), and the magnet (6) is positioned in the energy acquisition coil (5);
stepped grooves (17) are respectively formed in two end faces of the roller (3), and the power supply management module (10) and the energy storage battery pack (11) are fixed in the stepped grooves (17); the power supply management module (10) is connected with the energy storage battery pack (11);
the annular transmitting antenna (14) is fixed on the end face of the roller (3), a through cavity is formed in the roller (3), and the state monitoring circuit (12) is installed on the inner wall of the through cavity; the annular transmitting antenna (14) is connected with the state monitoring circuit (12).
2. A gravitational potential power generating bearing roller self-powered monitoring device according to claim 1, characterized in that the surface of the roller (3) is provided with a plurality of said annular inner grooves (16).
3. A gravitational potential power generating bearing roller self-powered monitoring device according to claim 2, characterized in that a plurality of said annular inner grooves (16) are provided at regular intervals on the surface of said roller (3).
4. A gravitational potential power generating bearing roller self-powered monitoring device according to claim 3, characterized in that adjacent annular inner grooves (16) are spaced 90 ° apart.
5. The self-powered monitoring device for a gravitational potential energy power generating bearing roller according to claim 1, characterized in that the end of the magnet (6) close to the bottom side wall of the annular inner groove (16) is provided with a damping spring (8) in a connected manner, and the end of the damping spring (8) far from the magnet (6) is provided on the bottom side wall of the annular inner groove (16) in a connected manner.
6. A gravitational potential power generating bearing roller self-powered monitoring device according to claim 1, characterized in that the weight (7) is provided with a through hole.
7. A gravitational potential energy power generating bearing roller self-powered monitoring device according to claim 1, characterized in that the weight (7) is of non-magnetic material.
8. A gravitational potential power generating bearing roller self-powered monitoring device according to claim 1, characterized in that a threaded cover (9) is provided at the mouth of the annular inner groove (16).
9. A gravitational potential power generating bearing roller self-powered monitoring device according to claim 1, characterized in that an end-face threaded cover (13) is provided at the notch of the stepped groove (17).
10. A gravitational potential power generating bearing roller self-powered monitoring device according to claim 1, characterized in that the opening of the through cavity is provided with a through cavity threaded cover (15).
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| CN202110859044.XA CN113565867B (en) | 2021-07-28 | 2021-07-28 | Bearing roller self-powered monitoring device for gravitational potential energy power generation |
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| CN202110859044.XA CN113565867B (en) | 2021-07-28 | 2021-07-28 | Bearing roller self-powered monitoring device for gravitational potential energy power generation |
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