CN112392830B - High-precision anti-loosening early warning intelligent nut and intelligent threaded fastener - Google Patents
High-precision anti-loosening early warning intelligent nut and intelligent threaded fastener Download PDFInfo
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- CN112392830B CN112392830B CN202011263930.8A CN202011263930A CN112392830B CN 112392830 B CN112392830 B CN 112392830B CN 202011263930 A CN202011263930 A CN 202011263930A CN 112392830 B CN112392830 B CN 112392830B
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- 230000008054 signal transmission Effects 0.000 claims abstract description 29
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 230000005669 field effect Effects 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 17
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims 1
- 230000035945 sensitivity Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Classifications
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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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
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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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
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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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
- F16B41/002—Measures against loss of bolts, nuts or pins
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The invention discloses a high-precision anti-loose early warning intelligent nut which comprises a nut main body with an internal thread hole, and a detection device and a signal transmission device which are arranged in the nut main body, wherein a friction roller is rotatably arranged in the nut main body, and the outer edge of the friction roller protrudes into the internal thread hole and can be abutted against a bolt matched with the nut main body. The invention also discloses an intelligent threaded fastener, the nut main body is in threaded fit with the bolt, and the outer edge of the friction roller is abutted against the outer thread of the bolt. Technical scheme's locking early warning intelligence nut of high accuracy and intelligent threaded fastener more than adopting, novel structure, design benefit easily realizes, reliable and stable, even small not hard up also can be discerned, and sensitivity is high, can use in the working scene that the precision requirement is very strict.
Description
Technical Field
The invention relates to the technical field of threaded connecting parts, in particular to a high-precision anti-loosening early warning intelligent nut and an intelligent threaded fastener.
Background
The bolt and the nut are matched to form threaded connection, the threaded connection belongs to detachable connection, and the bolt and the nut are widely applied to various fields such as machinery, chemical engineering, wind power generation, railway bridges and building structures. The load that the bolt is subjected to during use fluctuates, and therefore, the nut is likely to loosen after long-term use. For part of application scenarios, the nut is not acceptable to be loosened, and even slight loosening can bring about serious influence.
Therefore, a series of intelligent nuts and intelligent bolts are produced on the market, so that the tiny looseness of the nuts is expected to be found in time, an alarm is given out immediately, people can conveniently and quickly identify the nuts, and the nuts are overhauled and maintained.
However, in practical application, it is found that the existing intelligent nut and intelligent bolt are not applicable to a use scene with extremely high precision requirement due to the structural design problem, poor sensitivity and difficulty in identifying the tiny rotation of the nut.
Therefore, a new high-sensitivity intelligent nut and threaded fastener is urgently needed to be designed so as to meet the use requirement of a high-precision application scene.
Disclosure of Invention
In order to solve the technical problems, the invention provides a high-precision anti-loose early warning intelligent nut and an intelligent threaded fastener.
The technical scheme is as follows:
a high-precision anti-loose early warning intelligent nut is characterized by comprising a nut main body with an internal thread hole, a detection device and a signal transmission device, wherein the detection device and the signal transmission device are arranged in the nut main body;
when the nut main part rotated relative to the bolt, can drive the friction roller and rotate, detection device will detect the outside transmission of friction roller pivoted information passing signal transmission module simultaneously.
Structure more than adopting, the rotation of nut main part can drive the friction gyro wheel and rotate, because the radius of rotation of friction gyro wheel is far less than the radius of rotation of nut main part, even the nut main part only takes place small rotation, the friction gyro wheel also can take place rotation by a relatively large margin, can accurately be discerned by detection device, consequently, not hard up early warning sensitivity of early warning intelligence nut that becomes flexible is high, can use in the work scene that has strict requirement.
Preferably, the method comprises the following steps: the detection device comprises a rotation sensor trigger switch and a signal processing module, wherein the rotation sensor trigger switch comprises a switch shell and a switch rotating shaft which is rotatably arranged on the switch shell in a penetrating way, a trigger ring and a rotating pointer which are coaxially arranged are arranged in the switch shell, the trigger ring consists of a conducting area and a non-conducting area which are alternately arranged, the conducting area and the rotating pointer are both made of conducting materials, the non-conducting area is made of insulating materials, the trigger ring and the rotating pointer can relatively rotate, and one of the trigger ring and the rotating pointer is fixedly arranged in the switch shell;
when the rotating pointer relatively rotates to any non-conducting area, the rotating sensor triggers the switch to be switched off; when the rotating pointer relatively rotates to any conducting area, the rotating sensor triggers the switch to be conducted, and the signal processing module transmits the information of the friction roller to the outside through the signal transmission module.
By adopting the structure, the initial position of the rotary pointer in the non-conduction area is adjusted, the rotary conduction angle of the rotary sensor trigger switch can be accurately controlled, so that the detection precision of the rotary sensor can be accurately controlled, the precision adjusting process can be completed by rotating the rotary switch rotating shaft, the operation is simple, and even a common installer can independently complete the detection according to actual requirements.
Preferably, the method comprises the following steps: the trigger ring, the rotary pointer, the signal processing module and the signal transmission module form a sensor control circuit together with a power supply U, a photoelectric coupling switch U1, a field effect transistor Q1 and a reset switch S1;
each conducting area of the trigger ring is connected with the anode of the power supply U, the rotary pointer sequentially serially connects the resistor R1, the resistor R2 and the reset switch S1 are connected with the cathode of the power supply U, the common end of the resistor R1 and the resistor R2 is connected with the grid of the field-effect tube Q1, the source electrode of the field-effect tube Q1 serially connects the reset switch S1 and then is connected with the cathode of the power supply U, the resistor R3 serially connects the photoelectric coupling switch U1 and then is connected between the anode of the power supply U and the drain of the field-effect tube Q1 in parallel with the signal processing module and the signal transmission module, and the two ends of the light receiver of the photoelectric coupling switch U1 are respectively connected with the anode of the power supply U and the common end of the rotary pointer and the resistor R1.
By adopting the circuit, even if the rotary sensor trigger switch is disconnected again after the rotary sensor trigger switch is switched on for the first time, the power supply U can still continuously supply power to the signal processing module and the signal transmission module, the signal processing module and the signal transmission module can be continuously in a starting state and cannot be powered off unless the reset switch S1 is manually switched off or the power supply U is exhausted, so that people can accurately position the triggered rotary sensor.
Preferably, the method comprises the following steps: the trigger ring is fixedly installed in the switch shell, a switch rotating shaft which synchronously rotates with the rotating pointer penetrates through the rotating pointer, and the switch rotating shaft penetrates out of the switch shell. By adopting the structure, the design is more reasonable, the arrangement and the assembly of related parts are easy, and meanwhile, the switch rotating shaft is additionally arranged, so that the use is easier.
Preferably, the method comprises the following steps: the nut is characterized in that a contraposition indicating mark is arranged on the nut body, one end of the switch rotating shaft penetrates out from the center position of the contraposition indicating mark, and the contraposition indicating mark is provided with conducting area marks which are respectively in one-to-one correspondence with the conducting areas and non-conducting area marks which are respectively in one-to-one correspondence with the non-conducting areas. By adopting the structure, the precision adjustment can be conveniently and visually carried out by an operator.
Preferably, the method comprises the following steps: a straight groove is concavely formed on the end face of one end of the switch rotating shaft, and the extending direction of the straight groove is consistent with the direction of the rotating pointer. By adopting the structure, the pointing direction of the straight-line groove is the pointing direction of the rotary pointer, the switch starting precision can be adjusted very intuitively by matching with the alignment indicating mark, and meanwhile, the structure of the straight-line groove is convenient for rotating the switch rotating shaft.
Preferably, the method comprises the following steps: the nut main part is including the hexagonal nut base member that is hexagonal prism structure and the part installation cover that outwards extends along the axial from hexagonal nut base member one end terminal surface, hexagonal nut base member and part installation cover integrated into one piece, and the two constitutes jointly the internal thread hole, detection device and signal transmission module all install along circumference and sheathe in the part installation. By adopting the structure, the nut can be conveniently installed by using tools, components can be conveniently installed, and the integrated structure has high strength.
Preferably, the method comprises the following steps: the detachable nut cover is sleeved outside the component mounting sleeve and is in a ring shape, the nut cover and the component mounting sleeve surround to form a mounting space, and the detection device and the signal transmission module are arranged in the mounting space. Structure more than adopting forms relative confined installation space, has fine protection, waterproof and dustproof effect to components and parts, simultaneously because the structure of nut lid and hexagon nut base member is different completely, easily recognizes, avoids workman's instrument extrusion, further plays the guard action to internal element.
Preferably, the method comprises the following steps: and one end of the inner wall of the component mounting sleeve, which is far away from the hexagonal nut base body, is provided with an anti-loosening sealing ring, and the anti-loosening sealing ring is inwards protruded out of the internal thread hole of the nut main body. By adopting the structure, the anti-loosening sealing ring can be in interference fit with the external thread of the bolt, so that the nut can be effectively prevented from loosening, and the waterproof and dustproof effects can be greatly improved.
The utility model provides an intelligence threaded fastener which the main points lie in: including bolt and foretell high sensitivity integral type intelligence nut, nut main part and bolt screw-thread fit, the outer fringe of friction roller and the external screw thread butt of bolt.
By adopting the structure, the fastening device not only has the connection fastening effect which is not weaker than that of the traditional threaded fastener, but also has extremely high sensitivity, can be identified even if tiny looseness exists, outputs an early warning signal outwards, and can be applied to a working scene with extremely strict precision requirement.
Compared with the prior art, the invention has the beneficial effects that:
technical scheme's locking early warning intelligence nut of high accuracy and intelligent threaded fastener more than adopting, novel structure, design benefit easily realizes, reliable and stable, even small not hard up also can be discerned, and sensitivity is high, can use in the working scene that the precision requirement is very strict.
Drawings
FIG. 1 is a schematic structural view of a smart threaded fastener;
FIG. 2 is a schematic view of the internal structure of the smart threaded fastener;
FIG. 3 is a schematic structural diagram of a high-precision anti-loose early warning intelligent nut;
FIG. 4 is a schematic diagram of a high-precision anti-loose early warning intelligent nut with a nut cover removed;
FIG. 5 is a schematic view of a rotary sensor trigger switch without a switch shaft;
FIG. 6 is a schematic view of a rotary sensor trigger switch with a switch shaft;
fig. 7 is a circuit diagram of a sensor control circuit.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
As shown in fig. 2-4, the high-precision anti-loose early warning intelligent nut mainly comprises a nut main body 2 with an internal threaded hole 2b, and a detection device and a signal transmission device both arranged inside the nut main body 2, wherein a roller mounting seat 2e is arranged inside the nut main body 2, and a friction roller 4 is rotatably arranged on the roller mounting seat 2 e. The rotation axis of the friction roller 4 forms a certain angle with the central axis of the nut main body 2, and the outer edge of the friction roller 4 protrudes into the internal thread hole 2b and can be abutted against the bolt 1 matched with the nut main body 2; when the nut body 2 rotates relative to the bolt 1, the friction roller 4 can be driven to rotate, and meanwhile, the detection device transmits the information detected by the rotation of the friction roller 4 to the outside through the signal transmission module 9.
Nut main part 2 is including the hexagonal nut base member 2d that is hexagonal prism structure and the part installation cover 2a that outwards extends along the axial from hexagonal nut base member 2d one end terminal surface, and hexagonal nut base member 2d and part installation cover 2a integrated into one piece, and the two constitutes internal thread hole 2b jointly, and detection device and signal transmission module 9 all follow circumference and install on part installation cover 2 a. Simultaneously, the overcoat has detachable nut lid 2c on the part installation cover 2a, nut lid 2c is the ring shape, and surround with part installation cover 2a and form the installation space, detection device and signal transmission module 9 all set up in the installation space, form relative confined installation space, have fine protection to components and parts, waterproof and dustproof effect, simultaneously because nut lid 2c is different completely with hexagon nut base member 2 d's structure, easily recognition, avoid the workman to use the instrument extrusion, further play the guard action to internal element.
Further, the one end that hexagon nut base member 2d was kept away from to the inner wall of part installation cover 2a is provided with locking seal 8, and locking seal 8 inwards protrudes in the internal thread hole 2b of nut main part 2, and locking seal 8 can be with the external screw thread 1a interference fit of bolt 1, not only can prevent very effectively that the nut is not hard up, can promote waterproof dustproof effect moreover by a wide margin.
Referring to fig. 2-7, the detecting device includes a rotation sensor trigger switch 3 and a signal processing module 5, the rotation sensor trigger switch 3 includes a switch housing 3a and a switch rotating shaft 3b rotatably disposed through the switch housing 3a (the rotation sensor trigger switch 3 may not have the switch rotating shaft 3 b), the switch housing 3a has a trigger ring 3c and a rotating pointer 3d coaxially disposed therein, the trigger ring 3c is composed of conductive areas 3c1 and non-conductive areas 3c2 alternately disposed, the conductive areas 3c1 and the rotating pointer 3d are both made of conductive materials, the non-conductive areas 3c2 are made of insulating materials, one of the trigger ring 3c and the rotating pointer 3d is fixedly mounted in the switch housing 3a, and the other is fixedly sleeved on the switch rotating shaft 3b. In this embodiment, the trigger ring 3c is fixedly installed in the switch housing 3a, and the rotary pointer 3d is fixedly sleeved on the switch rotating shaft 3b, so that the design is more reasonable, and the arrangement and assembly of related parts are easy.
The rotary pointer 4 comprises a pointer sleeve 4a and a contact 4b which are integrally formed, the pointer sleeve 4a is fixedly sleeved on the switch rotating shaft 3b, and the contact 4b extends outwards along the radial direction of the pointer sleeve 4 a. When the rotating pointer 4 relatively rotates to any conducting area 3c1, the contact 4b is in contact with the conducting area 3c1, and the rotating sensor triggers the switch to be conducted; when the rotating pointer 4 relatively rotates to any one non-conducting area 3c2, the contact 4b is contacted with the non-conducting area 3c2, and the rotating sensor trigger switch is opened.
Referring to fig. 7, the trigger ring 3c, the rotary pointer 3d, the signal processing module 5, the signal transmission module 9, the power supply U, the photoelectric coupling switch U1, the field effect transistor Q1, and the reset switch S1 form a sensor control circuit. Wherein, the inner wall of the outer baffle 2a is provided with a power supply U for supplying power to the sensor control circuit. Power U, rotation sensor trigger switch 3, signal transmission module 9 and signal processing module 5 distribute on the inner wall of outside baffle 2a along circumference, and in this embodiment, outside baffle 2a is regular hexagon ring structure, and power U, rotation sensor trigger switch 3, signal transmission module 9 and signal processing module 5 are respectively on an independent lateral wall of regular hexagon ring structure, not only the installation is reliable, reduces the interference moreover.
Specifically, each conducting area 3c1 of the trigger ring 3c is connected with the positive electrode of the power supply U, the rotary pointer 3d is sequentially connected with the resistor R1 in series, the resistor R2 and the reset switch S1 and then connected with the negative electrode of the power supply U, the common end of the resistor R1 and the resistor R2 is connected with the grid electrode of the field-effect tube Q1, the source electrode of the field-effect tube Q1 is connected with the negative electrode of the power supply U in series, the resistor R3 is connected with the light emitter of the photoelectric coupling switch U1 and then connected in parallel with the signal processing module 5 and the signal transmission module 9 between the positive electrode of the power supply U and the drain electrode of the field-effect tube Q1, and the two ends of the light receiver of the photoelectric coupling switch U1 are respectively connected with the positive electrode of the power supply U and the common ends of the rotary pointer 3d and the resistor R1.
When the nut body 2 rotates, the friction roller 4 is driven to rotate, so that the switch rotating shaft 3b drives the rotating pointer 3d to rotate synchronously, and when the contact 3d1 of the rotating pointer 3d contacts the conducting area 3c1, the voltage is applied to the grid electrode of the field effect transistor Q1 through the resistor R1, so that the field effect transistor Q1 is conducted. When the field effect transistor Q1 is conducted, a light emitter in the photoelectric coupling switch U1 is electrified, a light receiver of the photoelectric coupling switch U1 is conducted, the sensor control circuit is self-locked, and the field effect transistor Q1 is always in a conducting state. Even if the contact 3d1 of the rotating pointer 3d contacts the non-conducting area 3c2, the non-conducting area is not disconnected, and the effect of continuously supplying power to the signal processing module 5 and the signal transmission module 9 is achieved. The system does not stop until the normally closed reset switch S1 is opened.
The nut body 2 is printed with a nut identity code, the identity code is transmitted to a receiving terminal through a signal transmission device, and the position of a loosened bolt can be quickly judged by the receiving terminal when the nut is applied to engineering.
In this embodiment, the field effect transistor Q1 may also be replaced with a triode, and the signal transmission module 9 preferably adopts a wireless transmission module, which is more convenient to use and easy to assemble compared with wired transmission.
Referring to fig. 3, 5 and 6, the nut body 2 is provided with a positioning indicator 10, one end of the switch rotating shaft 3b penetrates out of the center of the positioning indicator 10, and the positioning indicator 10 is provided with conducting area identifiers 10a corresponding to the conducting areas 3c1 and non-conducting area identifiers 10b corresponding to the non-conducting areas 3c 2. And, switch pivot 3b passes on the terminal surface of the one end of nut lid 2c and caves in and is formed with a word groove 3b1, and the extending direction of this word groove 3b1 is unanimous with the direction of rotatory pointer 3d, and the direction of word groove 3b1 is exactly the direction of contact 3d1, cooperates with counterpoint indicator 10, and operating personnel can adjust switch start-up precision very directly perceivedly, and the structure of word groove 3b1 also is convenient for rotate switch pivot 3b simultaneously.
The utility model provides an intelligence threaded fastener, including bolt 1 and foretell high sensitivity integral type intelligence nut, nut main part 2 and 1 screw-thread fit of bolt, the outer fringe of friction roller 4 and the external screw thread 1a butt of bolt 1, this intelligence threaded fastener not only has the connection fastening effect that is not weak in traditional threaded fastener, and sensitivity is high moreover, even small not hard up also can be discerned to outwards export early warning signal, can use in the extremely harsh working scene of required precision.
Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and that those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.
Claims (9)
1. The utility model provides a locking early warning intelligent nut of high accuracy which characterized in that: the nut comprises a nut main body (2) with an internal thread hole (2 b), and a detection device and a signal transmission module (9) which are arranged inside the nut main body (2), wherein a roller mounting seat (2 e) is arranged inside the nut main body (2), a friction roller (4) is rotatably mounted on the roller mounting seat (2 e), the outer edge of the friction roller (4) protrudes into the internal thread hole (2 b), and can be abutted to a bolt (1) matched with the nut main body (2);
when the nut main body (2) rotates relative to the bolt (1), the friction roller (4) can be driven to rotate, and meanwhile, the detection device transmits the information of the rotation of the friction roller (4) to the outside through the signal transmission module (9);
the detection device comprises a rotary sensor trigger switch (3) and a signal processing module (5), wherein the rotary sensor trigger switch (3) comprises a switch shell (3 a) and a switch rotating shaft (3 b) which is rotatably arranged on the switch shell (3 a) in a penetrating mode, a trigger ring (3 c) and a rotary pointer (3 d) which are coaxially arranged are arranged in the switch shell (3 a), the trigger ring (3 c) is composed of conducting areas (3 c 1) and non-conducting areas (3 c 2) which are alternately arranged, the conducting areas (3 c 1) and the rotary pointer (3 d) are both made of conducting materials, the non-conducting areas (3 c 2) are made of insulating materials, the trigger ring (3 c) and the rotary pointer (3 d) can rotate relatively, and one of the trigger ring (3 c) and the rotary pointer (3 d) is fixedly installed in the switch shell (3 a);
when the rotating pointer (3 d) relatively rotates to any non-conducting area (3 c 2), the rotating sensor triggers the switch to be switched off; when the rotating pointer (3 d) relatively rotates to any one conducting area (3 c 1), the rotating sensor trigger switch is conducted, and the signal processing module (5) transmits the information of the friction roller (4) to the outside through the signal transmission module (9).
2. The high-precision anti-loose early-warning intelligent nut as claimed in claim 1, wherein: the trigger ring (3 c), the rotary pointer (3 d), the signal processing module (5) and the signal transmission module (9) form a sensor control circuit together with a power supply U, a photoelectric coupling switch U1, a field effect transistor Q1 and a reset switch S1;
each conducting area (3 c 1) of the trigger ring (3 c) is connected with the anode of a power supply U, a rotary pointer (3 d) is sequentially connected with a resistor R1 in series, a resistor R2 and a reset switch S1 are connected with the cathode of the power supply U, the common end of the resistor R1 and the resistor R2 is connected with the grid of a field-effect tube Q1, the source of the field-effect tube Q1 is connected with the cathode of the power supply U in series after being connected with the reset switch S1, the resistor R3 is connected with a light emitter of a photoelectric coupling switch U1 in series and then is connected between the anode of the power supply U and the drain of the field-effect tube Q1 in parallel with a signal processing module (5) and a signal transmission module (9), and the two ends of a light receiver of the photoelectric coupling switch U1 are respectively connected with the anode of the power supply U and the common end of the rotary pointer (3 d) and the resistor R1.
3. The high-precision anti-loose early-warning intelligent nut as claimed in claim 1, wherein: trigger ring (3 c) fixed mounting in switch casing (3 a), wear to be equipped with rather than synchronous pivoted switch pivot (3 b) on rotatory pointer (3 d), this switch pivot (3 b) outwards wears out switch casing (3 a).
4. The high-precision anti-loose early warning intelligent nut as claimed in claim 3, wherein: the nut is characterized in that a contraposition indicating mark (10) is arranged on the nut main body (2), one end of the switch rotating shaft (3 b) penetrates out of the center position of the contraposition indicating mark (10), and the contraposition indicating mark (10) is provided with conducting area marks (10 a) which are in one-to-one correspondence with the conducting areas (3 c 1) and non-conducting area marks (10 b) which are in one-to-one correspondence with the non-conducting areas (3 c 2).
5. The high-precision anti-loose early warning intelligent nut as claimed in claim 1, wherein: a linear groove (3 b 1) is formed in a concave mode on the end face of one end of the switch rotating shaft (3 b), and the extending direction of the linear groove (3 b 1) is consistent with the direction of the rotating pointer (3 d).
6. The high-precision anti-loose early warning intelligent nut as claimed in claim 1, wherein: nut main part (2) are including hexagonal nut base member (2 d) that are hexagonal prism structure and from hexagonal nut base member (2 d) one end terminal surface along the outside part installation cover (2 a) that extends of axial, hexagonal nut base member (2 d) and part installation cover (2 a) integrated into one piece, and the two constitutes jointly internal thread hole (2 b), detection device and signal transmission module (9) are all installed on part installation cover (2 a) along circumference.
7. The high-precision anti-loose early warning intelligent nut as claimed in claim 6, wherein: the component mounting sleeve (2 a) is externally sleeved with a detachable nut cover (2 c), the nut cover (2 c) is annular and surrounds the component mounting sleeve (2 a) to form a mounting space, and the detection device and the signal transmission module (9) are arranged in the mounting space.
8. The high-precision anti-loose early warning intelligent nut as claimed in claim 7, wherein: one end, far away from the hexagonal nut base body (2 d), of the inner wall of the component mounting sleeve (2 a) is provided with an anti-loosening sealing ring (8), and the anti-loosening sealing ring (8) protrudes inwards out of the inner threaded hole (2 b) of the nut main body (2).
9. An intelligent threaded fastener, characterized in that: the high-precision anti-loose early warning intelligent nut comprises a bolt (1) and the intelligent nut as claimed in any one of claims 1 to 8, wherein the nut body (2) is in threaded fit with the bolt (1), and the outer edge of the friction roller (4) is abutted to the outer thread (1 a) of the bolt (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011263930.8A CN112392830B (en) | 2020-11-12 | 2020-11-12 | High-precision anti-loosening early warning intelligent nut and intelligent threaded fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011263930.8A CN112392830B (en) | 2020-11-12 | 2020-11-12 | High-precision anti-loosening early warning intelligent nut and intelligent threaded fastener |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112392830A CN112392830A (en) | 2021-02-23 |
| CN112392830B true CN112392830B (en) | 2023-03-21 |
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| CN202011263930.8A Active CN112392830B (en) | 2020-11-12 | 2020-11-12 | High-precision anti-loosening early warning intelligent nut and intelligent threaded fastener |
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| CN113380012B (en) * | 2021-06-09 | 2023-11-07 | 重庆大学 | Contact type fixed-load intelligent early warning nut and installation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004046568A1 (en) * | 2002-11-19 | 2004-06-03 | Telezygology Inc | Bolt assembly, method and device for release, and computer system |
| CN102840971B (en) * | 2012-08-29 | 2014-10-29 | 江苏法尔胜泓昇集团有限公司 | Looseness detecting device of bolt and nut fastening piece |
| DE202014104451U1 (en) * | 2014-09-18 | 2015-12-21 | Maxion Wheels Germany Holding Gmbh | Nut, in particular wheel or axle nut, washer, control device for wheel or axle nuts on vehicles and vehicle hereby |
| CN104614775A (en) * | 2015-02-25 | 2015-05-13 | 云南酷联科技有限公司 | Bolt looseness on-line monitoring device |
| CN108071655A (en) * | 2016-11-16 | 2018-05-25 | 孙愉后 | Indicate the fastener of the loose amount of moving back |
| CN107013553B (en) * | 2017-06-13 | 2024-02-23 | 魏向东 | Anti-loosening gasket structure |
| CN109034340A (en) * | 2018-08-06 | 2018-12-18 | 天津云拓网络科技有限公司 | A kind of electronic tag that monitoring bolt loosens |
| CN110126680A (en) * | 2019-04-30 | 2019-08-16 | 扬州市金诺尔不锈钢有限公司 | A kind of high-speed railway touching net fastener |
| CN110273909A (en) * | 2019-06-05 | 2019-09-24 | 上海应谱科技有限公司 | A kind of intelligent fastener and on-line monitoring system that can perceive fastener nut loosening |
| CN211827530U (en) * | 2020-05-25 | 2020-10-30 | 合肥嘉联智能科技有限公司 | Nut looseness intelligent monitoring early warning device |
-
2020
- 2020-11-12 CN CN202011263930.8A patent/CN112392830B/en active Active
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| Publication number | Publication date |
|---|---|
| CN112392830A (en) | 2021-02-23 |
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