CN113380013A - Bolt pre-tightening force alarm ring piece with installation prompting function and installation method thereof - Google Patents
Bolt pre-tightening force alarm ring piece with installation prompting function and installation method thereof Download PDFInfo
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- CN113380013A CN113380013A CN202110642246.9A CN202110642246A CN113380013A CN 113380013 A CN113380013 A CN 113380013A CN 202110642246 A CN202110642246 A CN 202110642246A CN 113380013 A CN113380013 A CN 113380013A
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000001514 detection method Methods 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 16
- 238000012545 processing Methods 0.000 claims description 14
- 239000000758 substrate Substances 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 abstract description 14
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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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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
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Abstract
The invention discloses a bolt pretightening force alarm ring piece with an installation prompting function and an installation method thereof. By adopting the technical scheme, an alarm signal can be sent out when the bolt is loosened, so that maintenance personnel can overhaul the loosened bolt as soon as possible, the alarm device for insufficient load cannot be activated as long as the pretightening force of bolt connection is within a safe preset range, unnecessary overhaul by operation and maintenance personnel is avoided, meanwhile, an effective prompt can be provided for installation personnel in the bolt connection pretightening process, a bolt connecting piece or the bolt pretightening force alarm ring piece is prevented from being damaged, the bolt pretightening difficulty and the requirement on personnel quality are greatly reduced, and meanwhile, the investment cost is also reduced; therefore, the method plays an important role in improving the effectiveness and safety of the structural connection of the equipment.
Description
Technical Field
The invention relates to the technical field of bolt connection reliability detection devices, in particular to a bolt pre-tightening force alarm ring piece with an installation prompting function and an installation method thereof.
Background
Under the action of long-time pressure, material creep and contact surface plastic deformation are easy to occur on the contact surface in bolt connection, so that the stress of the bolt connection is relaxed. Therefore, in engineering applications, even if the bolt or the nut is not loosened, the tensile force of the bolt connection is gradually reduced due to creep of the connected material and plastic deformation of the contact surface, thereby reducing the reliability of the bolt connection. When the bolt connection tension drops to a certain degree, the bolt or the nut is further loosened, and equipment failure or safety accidents are caused in serious cases. Therefore, a series of bolt connection early warning devices are produced in the market, when the bolts or nuts are found to be loosened, an alarm is sent outwards, so that people can conveniently and quickly identify the bolts or nuts, and overhaul and maintenance are carried out.
The pretightening force (load) of the bolt connection is in accordance with the safety requirement as long as the pretightening force (load) is within a set range, and the reliability of the bolt connection is not influenced. However, the existing bolt connection early warning device needs to send out an alarm under a larger loosening condition due to the problems of principle design and structural design, and the actual load of bolt connection is far lower than the rated load, so that the alarm time is delayed, and the equipment has a dangerous operation state.
In addition, in the bolt connection pre-tightening process, due to the fact that the bolt connection early warning device is additionally arranged, whether the bolt is loosened or not can be detected, whether the pre-tightening force (load) of bolt connection meets the requirement of rated load or not cannot be judged, the threaded connecting piece can be damaged by the overlarge pre-tightening force (load), the connected piece can be possibly damaged, and the requirement of the installation process on the quality of installation personnel is extremely high. Therefore, the designed bolt connection early warning device can assist in prompting whether the pretightening force (load) reaches the preset range or not during bolt connection.
It is urgent to solve the above problems.
Disclosure of Invention
In order to solve the technical problems, the invention provides a bolt pre-tightening force alarm ring piece with an installation prompting function and an installation method thereof.
The technical scheme is as follows:
the bolt pretightening force alarm ring piece with the installation prompt function is characterized by comprising a ring piece base body, a rated load detection contact switch, an overload trigger switch, a battery, an underload alarm device and an overload alarm device, wherein the rated load detection contact switch, the overload trigger switch and the battery are installed on the ring piece base body;
a first pressure-bearing ring sheet and a second pressure-bearing ring sheet are arranged at two ends of the ring piece substrate in a mutually opposite mode, and the distance between the first pressure-bearing ring sheet and the second pressure-bearing ring sheet is reduced along with the increase of pre-tightening force applied to the first pressure-bearing ring sheet and the second pressure-bearing ring sheet by a bolt and a nut;
the rated load detection contact switch comprises a switch bracket and an insulating contact which are respectively arranged on one side of a first pressure-bearing ring sheet and one side of a second pressure-bearing ring sheet which are close to each other, wherein the switch bracket is provided with a fixed conductive contact which is fixedly arranged and a movable conductive contact which is movably arranged, and the movable conductive contact can be abutted against the fixed conductive contact under the driving of an elastic element and can be separated from the fixed conductive contact under the driving of the insulating contact;
the overload trigger switch comprises a first overload conductive contact and a second overload conductive contact which are respectively arranged at the sides of the first pressure-bearing ring sheet and the second pressure-bearing ring sheet, which are close to each other;
when the pretightening force borne by the first pressure-bearing ring sheet and the second pressure-bearing ring sheet is smaller than the set range, the movable conductive contact is abutted against the fixed conductive contact, and the distance between the first overload conductive contact and the second overload conductive contact is larger than the distance between the insulating contact and the fixed conductive contact, so that the rated load detection contact switch is switched on and the overload trigger switch is switched off.
By adopting the structure, when the load borne by the ring base body is smaller than the set range, the movable conductive contact is contacted with the fixed conductive contact, the distance between the first overload conductive contact and the second overload conductive contact is larger than the distance between the insulated contact and the fixed conductive contact, so that the underload alarm device is started, the overload alarm device is stopped, the activated underload alarm device sends out an alarm signal, maintenance personnel can overhaul the loosened bolt connecting piece as soon as possible, and the effectiveness and the safety of bolt connection are ensured; when the load borne by the ring base body is in a set range, the insulating contact drives the movable conductive contact to be separated from the fixed conductive contact, and a space is reserved between the first overload conductive contact and the second overload conductive contact, so that the underload alarm device and the overload alarm device are shut down, and the underload alarm device cannot be activated as long as the pretightening force (load) of the bolt connection is in a safe preset range, thereby avoiding unnecessary overhaul by operation and maintenance personnel and greatly reducing the labor intensity and the operation and maintenance cost; when the load borne by the ring base body is larger than a set range, the insulating contact drives the movable conductive contact to separate from the fixed conductive contact, the first overload conductive contact contacts with the second overload conductive contact, so that the under-load alarm device is stopped, the overload alarm device is started, and therefore, in the bolt connection pre-tightening process, the start of the overload alarm device can intuitively prompt an installer, the installer can stop continuing to twist in time, and the bolt is reversely twisted for a certain angle (until the under-load alarm device and the overload alarm device are both stopped) under the prompt of the under-load alarm device and the overload alarm device, so that the pre-tightening force (load) of the bolt connecting piece is in a safe preset range, and therefore, effective prompt can be provided for the installer, the damage to the bolt connecting piece, a workpiece to be locked or the bolt pre-tightening force alarm ring is avoided, and the bolt pre-tightening difficulty and the requirements on the quality of the personnel are greatly reduced, meanwhile, the investment cost is also reduced.
Preferably, the method comprises the following steps: the load shortage warning device comprises a load shortage indicator light and a signal processing module used for sending out a warning signal, one end of the rated load detection contact switch is connected with the negative pole of the battery, the other end of the rated load detection contact switch is connected with the positive pole of the battery after being sequentially connected with the load shortage indicator light and the signal processing module in series, the overload warning device is an overload indicator light or a buzzer, and the power indicator light is a power indicator light.
By adopting the structure, visual signals can be sent through the indicating lamps, the current state of the contact type fixed-load intelligent early warning nut of the installation personnel and the operation and maintenance personnel can be intuitively reminded, wireless signals can be sent outwards through the signal processing module, and the difficulty of finding loose bolt connecting pieces by the operation and maintenance personnel is greatly reduced.
Preferably, the method comprises the following steps: and a power switch and a power indicating device are arranged in the ring substrate, one end of the power indicating device is connected with the negative electrode of the battery in series, and the other end of the power indicating device is connected with the common end of the rated load detection contact switch and the overload trigger switch.
By adopting the structure, the bolt pre-tightening force alarm ring can be in a power-off state after leaving the factory, and the power switch is turned on before use, so that the electric quantity of the battery is effectively prevented from being fearless lost, and the service life is prolonged.
Preferably, the method comprises the following steps: the power switch comprises a door-shaped support arranged on one side of the second pressure-bearing ring piece close to the first pressure-bearing ring piece, a press switch arranged on one side of the door-shaped support close to the second pressure-bearing ring piece and a switch trigger screw which is arranged on the second pressure-bearing ring piece in a threaded fit manner in a penetrating manner; when the switch trigger screw compresses the push type switch, the push type switch is conducted, and when the switch trigger screw releases the push type switch, the push type switch is disconnected.
Structure more than adopting not only can effectively avoid the maloperation, avoids taking place to interfere the scheduling problem moreover, can continuously support tightly by switch trigger screw after the push type switch starts moreover, has guaranteed the reliability of operation.
Preferably, the method comprises the following steps: the switch support comprises a support base, a fixed contact mounting column and a movable contact mounting column, wherein the support base is mounted on one side, close to the second pressure-bearing ring piece, of the first pressure-bearing ring piece, the fixed contact mounting column and the movable contact mounting column extend to the second pressure-bearing ring piece from the support base, one end, close to the second pressure-bearing ring piece, of the fixed contact mounting column is provided with a fixed conductive contact extending to the movable contact mounting column, one end of the movable conductive contact is rotatably mounted at one end, far away from the support base, of the movable contact mounting column, so that the movable conductive contact can rotate between the fixed conductive contact and the support base, and an elastic element is arranged between the other end of the movable conductive contact and the support base, so that the movable conductive contact has a tendency of being abutted to the fixed conductive contact.
By adopting the structure, the safety range of the pretightening force of the bolt connecting piece can be accurately set by controlling the protruding height of the insulating contact, and the elastic element can ensure that the movable conductive contact has the tendency of being abutted against the fixed conductive contact, so that the bolt connecting piece is sensitive in response, simple and reliable in structure and durable in use.
Preferably, the method comprises the following steps: and a supporting ring sleeve is arranged between the first pressure-bearing ring piece and the second pressure-bearing ring piece, and two ends of the supporting ring sleeve are respectively connected with the inner edges of the first pressure-bearing ring piece and the second pressure-bearing ring piece and form a U-shaped ring groove structure with an opening on the outer peripheral surface in a surrounding manner.
By adopting the structure, the change of the pretightening force of the bolt connection can be accurately identified, and the built-in mechanical element and electronic element are convenient.
Preferably, the method comprises the following steps: the outer peripheral surface of the supporting ring sleeve is provided with reinforcing ribs which are uniformly distributed, and two ends of each reinforcing rib respectively support the first pressure-bearing ring piece and the second pressure-bearing ring piece.
By adopting the structure, the torsion resistance of the ring piece base body can be greatly improved, and the alarm ring piece with the pre-tightening force of the bolt is prevented from being easily damaged by being screwed during bolt connection.
Preferably, the method comprises the following steps: the dustproof sealing ring sleeve is arranged on the ring piece base body and is embedded into the notch of the ring piece base body, and the elastic modulus of the ring piece base body is larger than that of the dustproof sealing ring sleeve.
By adopting the structure, not only can a good rainproof and dustproof effect be achieved, the weather resistance of the bolt pretightening force alarm ring piece is improved, but also the deformation resistance of the ring piece base body is hardly increased, so that the bolt pretightening force alarm ring piece can accurately set the safety range of pretightening force (load).
Preferably, the method comprises the following steps: the ring piece base body is provided with a data output interface which penetrates out of the dustproof sealing ring sleeve.
By adopting the structure, the more detailed data information of operation and maintenance personnel is facilitated, and the problem that the data reading is difficult to perform after the battery is in short of electricity can be solved.
A mounting method of a bolt pretightening force alarm ring piece with a mounting prompt function is carried out according to the following steps:
s1, penetrating a bolt on a workpiece to be locked;
s2, turning on a power switch, and checking whether a power supply indicating device and an under-load alarm device are started and whether an overload alarm device is stopped: if yes, entering the next step; if not, replacing the bolt pretightening force alarm ring piece, and executing the step S2 again;
s3, sequentially sleeving the ring base body and the nut on the bolt, and rotating the nut or the bolt until the power supply indicating device, the underload alarm device and the overload alarm device are all stopped;
s4, continuing to rotate the nut or the bolt in the same direction according to the rotating direction of the nut or the bolt in the step S3 until the power supply indicating device and the overload alarming device are started and the underload alarming device is stopped;
and S5, reversely rotating the nut or the bolt according to the rotating direction of the nut or the bolt in the step S3 and the set angle until the power supply indicating device, the underload alarming device and the overload alarming device are all stopped, and finishing the installation of the bolt pre-tightening force alarming ring piece.
By adopting the method, the pretightening force of the bolt and the nut is in a safe preset range, effective prompt can be provided for installation personnel, damage to a bolt connecting piece or a workpiece to be locked or a bolt pretightening force alarm ring piece is avoided, the bolt pretightening difficulty and the requirement on personnel quality are greatly reduced, the investment cost is indirectly reduced, the bolt and the nut can be in the pretightening force as large as possible in the safe range, and the workpiece can be locked more reliably and for a longer period.
Compared with the prior art, the invention has the beneficial effects that:
by adopting the bolt pretightening force alarm ring piece with the installation prompting function and the installation method thereof, an alarm signal can be sent outwards when the load is insufficient, so that maintenance personnel can overhaul the loosened bolt as soon as possible, and the effectiveness and the safety of bolt connection are ensured; moreover, as long as the pretightening force (load) of the bolt connection is within a safe preset range, the alarm device for insufficient load cannot be activated, so that unnecessary overhaul by operation and maintenance personnel is avoided, and the labor intensity and the operation and maintenance cost are greatly reduced; meanwhile, in the process of bolt connection pre-tightening, an installer can be prompted to have overlarge pre-tightening force (load), the continuous twisting can be stopped in time, and the pre-tightening force of the bolt connecting piece is enabled to be as large as possible in a safe preset range under the prompting of the underload alarm device and the overload alarm device (the bolt is screwed to the underload alarm device and the overload alarm device and is stopped), so that the workpiece can be locked more reliably and for a longer period of time, an effective prompt is provided for the installer, the damage to the bolt connecting piece, the workpiece to be locked or the bolt pre-tightening force alarm ring piece is avoided, the bolt pre-tightening difficulty and the requirement on the quality of personnel are greatly reduced, and the investment cost is also reduced; therefore, the method plays an important role in improving the effectiveness and safety of the structural connection of the equipment.
Drawings
FIG. 1 is a schematic structural diagram of a bolt pre-tightening force alarm ring;
FIG. 2 is a schematic view of one of the viewing angles of the bolt pre-tightening force alarm ring member after the dust-proof sealing ring sleeve is removed;
FIG. 3 is a schematic view of another view angle of the bolt pre-tightening force alarm ring member after the dustproof sealing ring sleeve is removed;
FIG. 4 is a schematic view of a view angle left after the dust-proof sealing ring sleeve of the bolt pre-tightening force alarm ring member is removed;
FIG. 5 is a cross-sectional view of the bolt pre-tightening force alarm ring with the dust seal ring removed;
FIG. 6 is a schematic view of a matching relationship between the bolt pre-tightening force alarm ring and the bolt connecting piece;
FIG. 7 is a schematic circuit diagram of a bolt pretension alarm ring.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
As shown in fig. 1-5, the bolt pretightening force alarm ring with the installation prompting function mainly comprises a ring base body 1, and a rated load detection contact switch 2, an overload trigger switch 3, a battery 4, an underload alarm device 5, an overload alarm device 6, a power switch 7 and a power indicator device 8 which are arranged on the ring base body 1. Wherein, the underload alarm device 5 is connected with the battery 4 in series through the rated load detection contact switch 2, and the overload alarm device 6 is connected with the battery 4 in series through the overload trigger switch 3.
Referring to fig. 1-4 and 6, the ring base 1 is integrally formed, and the ring base 1 includes a supporting ring sleeve 11 having a cylindrical structure, and a first pressure-bearing ring piece 12 and a second pressure-bearing ring piece 13 disposed at two ends of the supporting ring sleeve 11, the first pressure-bearing ring piece 12 and the second pressure-bearing ring piece 13 are both circular rings and are opposite to each other, meanwhile, two ends of the supporting ring sleeve 11 are respectively connected with the inner edges of the first pressure-bearing ring sheet 12 and the second pressure-bearing ring sheet 13, and form a U-shaped ring groove structure with an opening on the outer peripheral surface in a surrounding manner, therefore, during the process of screwing the nut A2 and the bolt A1, the nuts of the nut A2 and the bolt A1 respectively press the first pressure-bearing ring sheet 12 and the second pressure-bearing ring sheet 13, so that the distance between the first pressure-bearing ring sheet 12 and the second pressure-bearing ring sheet 13 can be reduced, when the pretension force of the nut a2 and the bolt a1 is reduced, the distance between the first pressure-bearing ring plate 12 and the second pressure-bearing ring plate 13 is increased.
Furthermore, the outer peripheral surface of the support ring sleeve 11 is provided with reinforcing ribs 14 which are uniformly distributed, two ends of each reinforcing rib 14 are respectively connected with the first pressure-bearing ring piece 12 and the second pressure-bearing ring piece 13 and support the first pressure-bearing ring piece 12 and the second pressure-bearing ring piece 13, so that the torsion resistance of the ring piece base body 1 can be greatly improved, and the bolt pretightening force alarm ring piece is prevented from being easily damaged when being connected by bolts.
In addition, the dustproof sealing ring sleeve 9 is arranged on the ring piece base body 1, the dustproof sealing ring sleeve 9 is embedded into the notch of the ring piece base body 1, and the elastic modulus of the ring piece base body 1 is larger than that of the dustproof sealing ring sleeve 9. In this embodiment, the elastic modulus of the ring substrate 1 is much larger than that of the dustproof sealing ring sleeve 9, and the difference is large to the extent that the elastic modulus of the dustproof sealing ring sleeve 9 can be ignored, so that the dustproof sealing ring sleeve 9 can not only play a good rainproof and dustproof effect, improve the weather resistance of the bolt pretightening force alarm ring, but also hardly increase the deformation resistance of the ring substrate, thereby facilitating the bolt pretightening force alarm ring to accurately set the safety range of the pretightening force (load).
Referring to fig. 2 and 5, the rated load detection contact switch 2 includes a switch bracket 22 and an insulating contact 21 respectively installed at one side of the first pressure-bearing ring 12 and the second pressure-bearing ring 13 close to each other, the switch bracket 22 is provided with a fixed conductive contact 23 fixedly installed and a movable conductive contact 24 movably installed, and the movable conductive contact 24 can be abutted to the fixed conductive contact 23 under the driving of an elastic element 25 and separated from the fixed conductive contact 23 under the driving of the insulating contact 21.
Specifically, the switch bracket 22 includes a bracket base 221 mounted on the side of the first pressure-bearing ring piece 12 close to the second pressure-bearing ring piece 13, and a fixed contact mounting post 222 and a movable contact mounting post 223 extending from the bracket base 221 to the second pressure-bearing ring piece 13, one end of the fixed contact mounting post 222 close to the second pressure-bearing ring piece 13 is provided with a fixed conductive contact 23 extending to the movable contact mounting post 223, one end of the movable conductive contact 24 is rotatably mounted on one end of the movable contact mounting post 223 far from the bracket base 221 so that the movable conductive contact 24 can rotate between the fixed conductive contact 23 and the bracket base 221, and an elastic element 25 is provided between the other end of the movable conductive contact 24 and the bracket base 221 so that the movable conductive contact 24 has a tendency to abut against the fixed conductive contact 23.
Therefore, when the first pressure-bearing ring piece 12 and the second pressure-bearing ring piece 13 approach each other, the insulating contact 21 pushes the movable conductive contact 24 away from the fixed conductive contact 23, so that the load-rated detection contact switch 2 is turned off. When the first pressure-bearing ring piece 12 and the second pressure-bearing ring piece 13 are far away from each other, the movable conductive contact 24 is reset under the action of the elastic element 25, so that the movable conductive contact 24 is abutted against the fixed conductive contact 23, and the rated load detection contact switch 2 is switched on.
In this embodiment, the elastic element 25 is preferably a return compression spring, which is simple and reliable. In addition, the insulating contact 21 is mounted on the second pressure-bearing ring piece 13 through the insulating base 26, so that the length of the insulating contact 21 is reduced, the structural strength of the insulating contact 21 is increased, and the problems of breakage and the like are avoided.
Referring to fig. 3, the overload trigger switch 3 includes a first overload conductive contact 31 and a second overload conductive contact 32 respectively installed at sides of the first pressure-bearing ring 12 and the second pressure-bearing ring 13, which are close to each other. Therefore, when the first pressure-bearing ring piece 12 and the second pressure-bearing ring piece 13 approach each other and exceed the rated load setting range, the first overload conductive contact 31 and the second overload conductive contact 32 contact each other, and the overload trigger switch 3 is turned on. When the first pressure-bearing ring piece 12 and the second pressure-bearing ring piece 13 are far away from each other, the first overload conductive contact 31 and the second overload conductive contact 32 are separated, and the overload trigger switch 3 is turned off.
Similarly, the second overload conductive contact 32 is mounted on the second pressure ring 13 through the insulating base 33, so as to reduce the length of the second overload conductive contact 32, increase the structural strength of the second overload conductive contact 32, and avoid the problems of breakage and the like.
Referring to fig. 2, 4 and 7, the underload warning device 5 includes an underload indicator 51 and a signal processing module 52 for sending out a warning signal, one end of the rated load detection contact switch 2 is connected to the negative pole of the battery 4, and the other end is connected to the positive pole of the battery 4 after being serially connected with the underload indicator 51 and the signal processing module 52. Not only can send visual signal through pilot lamp 51, can also outwards send wireless signal through signal processing module 52, greatly reduced fortune dimension personnel find not hard up bolted connection's the degree of difficulty.
Referring to fig. 1, 4 and 7, a power switch 7 and a power indicator 8 are arranged in the ring base 1, one end of the power indicator 8 is connected in series with the power switch 7 and the negative electrode of the battery 4, and the other end is connected with the common end of the rated load detection contact switch 2 and the overload trigger switch 3.
Specifically, the power switch 7 comprises a door-shaped bracket 71 arranged on one side of the second pressure-bearing ring piece 13 close to the first pressure-bearing ring piece 12, a press switch 72 arranged on one side of the door-shaped bracket 71 close to the second pressure-bearing ring piece 13, and a switch trigger screw 73 arranged on the second pressure-bearing ring piece 13 in a threaded fit manner; when the switch trigger screw 73 presses the push switch 72, the push switch 72 is turned on, and when the switch trigger screw 73 releases the push switch 72, the push switch 72 is turned off.
Similarly, the overload warning device 6 is an overload indicator or a buzzer, and the power indicator 8 is a power indicator, which can visually indicate the overload.
In addition, the ring base body 1 is provided with a data output interface 10, and the data output interface 10 penetrates out of the dustproof sealing ring sleeve 9, so that more detailed data information of operation and maintenance personnel is facilitated, and the problem that data reading is difficult to perform after the battery is in short of electricity can be solved.
A mounting method of a bolt pretightening force alarm ring piece with a mounting prompt function is carried out according to the following steps:
and S1, a bolt A1 is arranged on the workpiece B to be locked in a penetrating mode.
S2, turning on the power switch 7, checking whether the power indicating device 8 and the underload warning device 5 are activated and whether the overload warning device 6 is deactivated: if yes, entering the next step; and if not, replacing the bolt pretightening force alarm ring piece and re-executing the step S2.
For step S1 and step S2: the bolt A1 is pre-arranged on a workpiece B to be locked in a penetrating mode, then the bolt pre-tightening force alarm ring piece is firstly sleeved on the bolt A1 and then screwed into the nut A2, and the bolt pre-tightening force alarm ring piece is located between the nut A2 and a nut of the bolt A1. Namely: the switch trigger screw 73 is screwed into the ring base body 1, so that the switch trigger screw 73 pushes the pressing type switch 72 tightly, the pressing type switch 72 is conducted, and the power indicator lamp is lightened. At this time, the first pressure-bearing ring piece 12 and the second pressure-bearing ring piece 13 do not bear any pressure, so that the movable conductive contact 24 is in contact with the fixed conductive contact 23, the insulating contact 21 is not in contact with the fixed conductive contact 23, the rated load detection contact switch 2 is turned on, the under-load indicator lamp 51 is turned on, and the signal processing module 52 emits a signal outwards; the first overload conductive contact 31 is not in contact with the second overload conductive contact 32, the overload trigger switch 3 is turned off, and the overload indicator lamp is turned off.
And S3, sequentially sleeving the ring body 1 and the nut A2 on the bolt A1, and rotating the nut A2 or the bolt A1 until the power supply indicating device 8, the underload alarm device 5 and the overload alarm device 6 are stopped.
Specifically, the nut a2 is continuously screwed, the distance between the first pressure-bearing ring piece 12 and the second pressure-bearing ring piece 13 is continuously reduced, when the pretightening force (load) borne by the first pressure-bearing ring piece 12 and the second pressure-bearing ring piece 13 is in a set range, the insulating contact 21 pushes open the movable conductive contact 24, so that the movable conductive contact 24 is separated from the fixed conductive contact 23, the rated load detection contact switch 2 is disconnected, the insufficient load indicator lamp 51 is turned off, and the signal processing module 52 stops emitting signals outwards; meanwhile, the first overload conductive contact 31 and the second overload conductive contact 32 are kept out of contact, the overload trigger switch 3 is kept off, the overload indicator lamp is kept off, and at the moment, the power indicator lamp is also turned off.
S4, according to the rotation direction of the nut a2 or bolt a1 in step S3, continuing to rotate the nut a2 or bolt a1 in the same direction until the power indicating device 8 and the overload warning device 6 are activated and the underload warning device 5 is deactivated.
In step S4, in order to maximize the pretightening force (load) of the nut a2 and to make the pretightening force (load) of the nut a2 less likely to be insufficient, the nut a2 needs to be tightened as much as possible and it is ensured that excessive overload is not used. Specifically, the distance between the first pressure-bearing ring piece 12 and the second pressure-bearing ring piece 13 is continuously reduced, when the load borne by the ring member substrate 1 is larger than the set range, the first overload conductive contact 31 is in contact with the second overload conductive contact 32, the overload trigger switch 3 is turned on, the overload indicator lamp is turned on, and meanwhile, the power indicator lamp is turned on; the insulating contact 21 drives the movable conductive contact 24 to keep separated from the fixed conductive contact 23, the rated load detection contact switch 2 keeps disconnected, the under-load indicator lamp 51 keeps turned off, and the signal processing module 52 keeps stopping transmitting signals outwards. Then, step S5 is executed.
S5, reversely rotating the nut A2 or the bolt A1 according to the rotating direction of the nut A2 or the bolt A1 in the step S3 and the set angle until the power supply indicating device 8, the underload alarming device 5 and the overload alarming device 6 are all stopped, and the installation of the bolt pretightening force alarming ring is completed. At this time, the nut A2 is at or near the maximum pretension in a reasonable pretension range, so that the bolt A1 and the nut A2 lock the workpiece B more reliably and for a longer period of time.
Specifically, the distance between the first pressure-bearing ring piece 12 and the second pressure-bearing ring piece 13 is increased, when the load borne by the ring base 1 returns to the set range, the first overload conductive contact 31 is separated from the second overload conductive contact 32, the overload trigger switch 3 is turned off, the overload indicator lamp is turned off, and meanwhile, the power indicator lamp is turned off; the insulating contact 21 drives the movable conductive contact 24 to keep separated from the fixed conductive contact 23, the rated load detection contact switch 2 keeps disconnected, the under-load indicator lamp 51 keeps turned off, and the signal processing module 52 keeps stopping transmitting signals outwards.
When the nut A2 and the bolt A1 lock the workpiece B, looseness may occur, so that when the pretightening force is smaller than the preset range, the distance between the first pressure-bearing ring piece 12 and the second pressure-bearing ring piece 13 is continuously increased, the movable conductive contact 24 is contacted with the fixed conductive contact 23, the insulating contact 21 is not contacted with the fixed conductive contact 23, the rated load detection contact switch 2 is switched on, the insufficient load indicator lamp 51 is lightened, the signal processing module 52 emits a signal outwards, and meanwhile, the power indicator lamp is lightened; the first overload conductive contact 31 and the second overload conductive contact 32 are kept out of contact, the overload trigger switch 3 is kept off, and the overload indicator lamp is kept off. After receiving the signal sent by the signal processing module 52, the maintenance personnel overhauls the bolt pretightening force alarm ring piece.
Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a bolt pretightning force warning ring spare with installation prompt facility which characterized in that: the ring element comprises a ring element base body, a rated load detection contact switch, an overload trigger switch, a battery, an underload alarm device and an overload alarm device, wherein the rated load detection contact switch, the overload trigger switch and the battery are arranged on the ring element base body;
a first pressure-bearing ring sheet and a second pressure-bearing ring sheet are arranged at two ends of the ring piece substrate in a mutually opposite mode, and the distance between the first pressure-bearing ring sheet and the second pressure-bearing ring sheet is reduced along with the increase of pre-tightening force applied to the first pressure-bearing ring sheet and the second pressure-bearing ring sheet by a bolt and a nut;
the rated load detection contact switch comprises a switch bracket and an insulating contact which are respectively arranged on one side of a first pressure-bearing ring sheet and one side of a second pressure-bearing ring sheet which are close to each other, wherein the switch bracket is provided with a fixed conductive contact which is fixedly arranged and a movable conductive contact which is movably arranged, and the movable conductive contact can be abutted against the fixed conductive contact under the driving of an elastic element and can be separated from the fixed conductive contact under the driving of the insulating contact;
the overload trigger switch comprises a first overload conductive contact and a second overload conductive contact which are respectively arranged at the sides of the first pressure-bearing ring sheet and the second pressure-bearing ring sheet, which are close to each other;
when the pretightening force borne by the first pressure-bearing ring sheet and the second pressure-bearing ring sheet is smaller than a set range, the movable conductive contact is abutted against the fixed conductive contact, and the distance between the first overload conductive contact and the second overload conductive contact is larger than the distance between the insulating contact and the fixed conductive contact, so that the rated load detection contact switch is switched on and the overload trigger switch is switched off; when the pretightening force borne by the first pressure-bearing ring sheet and the second pressure-bearing ring sheet is in a set range, the movable conductive contact is separated from the fixed conductive contact, and a gap is reserved between the first overload conductive contact and the second overload conductive contact, so that the rated load detection contact switch and the overload trigger switch are both switched off; when the pretightening force borne by the first pressure-bearing ring sheet and the pretightening force borne by the second pressure-bearing ring sheet are larger than the set range, the movable conductive contact is separated from the fixed conductive contact, and the first overload conductive contact is contacted with the second overload conductive contact, so that the rated load detection contact switch is switched off, and the overload trigger switch is switched on.
2. The bolt pre-tightening force alarm ring member with the installation prompting function according to claim 1, wherein: the load shortage warning device comprises a load shortage indicator light and a signal processing module used for sending out a warning signal, one end of the rated load detection contact switch is connected with the negative pole of the battery, the other end of the rated load detection contact switch is connected with the positive pole of the battery after being sequentially connected with the load shortage indicator light and the signal processing module in series, the overload warning device is an overload indicator light or a buzzer, and the power indicator light is a power indicator light.
3. The bolt pre-tightening force alarm ring member with the installation prompting function according to claim 1, wherein: and a power switch and a power indicating device are arranged in the ring substrate, one end of the power indicating device is connected with the negative electrode of the battery in series, and the other end of the power indicating device is connected with the common end of the rated load detection contact switch and the overload trigger switch.
4. The bolt pre-tightening force alarm ring member with the installation prompting function according to claim 3, wherein: the power switch comprises a door-shaped support arranged on one side of the second pressure-bearing ring piece close to the first pressure-bearing ring piece, a press switch arranged on one side of the door-shaped support close to the second pressure-bearing ring piece and a switch trigger screw which is arranged on the second pressure-bearing ring piece in a threaded fit manner in a penetrating manner; when the switch trigger screw compresses the push type switch, the push type switch is conducted, and when the switch trigger screw releases the push type switch, the push type switch is disconnected.
5. The bolt pretension warning ring member with installation prompting function according to any one of claims 1-3, wherein: the switch support comprises a support base, a fixed contact mounting column and a movable contact mounting column, wherein the support base is mounted on one side, close to the second pressure-bearing ring piece, of the first pressure-bearing ring piece, the fixed contact mounting column and the movable contact mounting column extend to the second pressure-bearing ring piece from the support base, one end, close to the second pressure-bearing ring piece, of the fixed contact mounting column is provided with a fixed conductive contact extending to the movable contact mounting column, one end of the movable conductive contact is rotatably mounted at one end, far away from the support base, of the movable contact mounting column, so that the movable conductive contact can rotate between the fixed conductive contact and the support base, and an elastic element is arranged between the other end of the movable conductive contact and the support base, so that the movable conductive contact has a tendency of being abutted to the fixed conductive contact.
6. The bolt pretension warning ring member with installation prompting function according to any one of claims 1-3, wherein: and a supporting ring sleeve is arranged between the first pressure-bearing ring piece and the second pressure-bearing ring piece, and two ends of the supporting ring sleeve are respectively connected with the inner edges of the first pressure-bearing ring piece and the second pressure-bearing ring piece and form a U-shaped ring groove structure with an opening on the outer peripheral surface in a surrounding manner.
7. The bolt pre-tightening force alarm ring member with the installation prompting function according to claim 6, wherein: the outer peripheral surface of the supporting ring sleeve is provided with reinforcing ribs which are uniformly distributed, and two ends of each reinforcing rib respectively support the first pressure-bearing ring piece and the second pressure-bearing ring piece.
8. The bolt pre-tightening force alarm ring piece with the installation prompting function according to claim 7, wherein: the dustproof sealing ring sleeve is arranged on the ring piece base body and is embedded into the notch of the ring piece base body, and the elastic modulus of the ring piece base body is larger than that of the dustproof sealing ring sleeve.
9. The bolt pre-tightening force alarm ring piece with the installation prompting function according to claim 8, wherein: the ring piece base body is provided with a data output interface which penetrates out of the dustproof sealing ring sleeve.
10. The mounting method of the bolt pretightening force alarm ring piece with the mounting prompt function is characterized by comprising the following steps of:
s1, penetrating a bolt on a workpiece to be locked;
s2, turning on a power switch, and checking whether a power supply indicating device and an under-load alarm device are started and whether an overload alarm device is stopped: if yes, entering the next step; if not, replacing the bolt pretightening force alarm ring piece, and executing the step S2 again;
s3, sequentially sleeving the ring base body and the nut on the bolt, and rotating the nut or the bolt until the power supply indicating device, the underload alarm device and the overload alarm device are all stopped;
s4, continuing to rotate the nut or the bolt in the same direction according to the rotating direction of the nut or the bolt in the step S3 until the power supply indicating device and the overload alarming device are started and the underload alarming device is stopped;
and S5, reversely rotating the nut or the bolt according to the rotating direction of the nut or the bolt in the step S3 and the set angle until the power supply indicating device, the underload alarming device and the overload alarming device are all stopped, and finishing the installation of the bolt pre-tightening force alarming ring piece.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110642246.9A CN113380013B (en) | 2021-06-09 | 2021-06-09 | Bolt pretightening force alarm ring piece with installation prompt function and installation method thereof |
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| CN202110642246.9A CN113380013B (en) | 2021-06-09 | 2021-06-09 | Bolt pretightening force alarm ring piece with installation prompt function and installation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115070661A (en) * | 2022-07-19 | 2022-09-20 | 重庆大学 | Bolt fastening load intelligent control monitoring system and application method thereof |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1458833A (en) * | 1972-12-27 | 1976-12-15 | Piroska J | Bolt pretensioning device |
| EP0345377A1 (en) * | 1988-06-09 | 1989-12-13 | Kaliber Müszer-Es Merestechnika Vallalat | Method and apparatus for continuously checking and examining the tightening and condition of screw connections |
| CN102466531A (en) * | 2010-11-10 | 2012-05-23 | 三一电气有限责任公司 | Bolt fault monitoring system and monitoring method thereof |
| KR20140008618A (en) * | 2012-07-09 | 2014-01-22 | 한국철도기술연구원 | Detecting apparatus for loosen bolt with piezoelectric film |
| CN103670473A (en) * | 2013-11-28 | 2014-03-26 | 尤洛卡矿业安全工程股份有限公司 | Anchor bolt fastening force status indication washer |
| CN107379880A (en) * | 2017-09-04 | 2017-11-24 | 郭子涵 | A kind of anti-loose anti-theft electronics bolt and system |
| CN108150516A (en) * | 2016-12-06 | 2018-06-12 | 上海丞捷机电有限公司 | A kind of locking stretching dynamometry washer |
| CN110094402A (en) * | 2018-01-31 | 2019-08-06 | 沈俊彤 | A kind of bolt with warning function |
| CN110487472A (en) * | 2019-09-12 | 2019-11-22 | 广东工业大学 | A kind of bolt loaded state test device |
| CN110542443A (en) * | 2019-08-29 | 2019-12-06 | 无锡必创传感科技有限公司 | Intelligent sensor for preventing nut from loosening and falling |
| CN211317342U (en) * | 2019-08-29 | 2020-08-21 | 无锡必创传感科技有限公司 | Intelligent sensor for preventing nut from loosening and falling |
| CN212225730U (en) * | 2020-05-14 | 2020-12-25 | 罗洋 | Low-creep intelligent bolt |
| CN212320975U (en) * | 2020-05-28 | 2021-01-08 | 深圳市彬玉科技有限公司 | Wireless alarm device for detecting nut looseness |
| CN112362327A (en) * | 2020-11-12 | 2021-02-12 | 重庆大学 | Application method of intelligent threaded fastener |
-
2021
- 2021-06-09 CN CN202110642246.9A patent/CN113380013B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1458833A (en) * | 1972-12-27 | 1976-12-15 | Piroska J | Bolt pretensioning device |
| EP0345377A1 (en) * | 1988-06-09 | 1989-12-13 | Kaliber Müszer-Es Merestechnika Vallalat | Method and apparatus for continuously checking and examining the tightening and condition of screw connections |
| CN102466531A (en) * | 2010-11-10 | 2012-05-23 | 三一电气有限责任公司 | Bolt fault monitoring system and monitoring method thereof |
| KR20140008618A (en) * | 2012-07-09 | 2014-01-22 | 한국철도기술연구원 | Detecting apparatus for loosen bolt with piezoelectric film |
| CN103670473A (en) * | 2013-11-28 | 2014-03-26 | 尤洛卡矿业安全工程股份有限公司 | Anchor bolt fastening force status indication washer |
| CN108150516A (en) * | 2016-12-06 | 2018-06-12 | 上海丞捷机电有限公司 | A kind of locking stretching dynamometry washer |
| CN107379880A (en) * | 2017-09-04 | 2017-11-24 | 郭子涵 | A kind of anti-loose anti-theft electronics bolt and system |
| CN110094402A (en) * | 2018-01-31 | 2019-08-06 | 沈俊彤 | A kind of bolt with warning function |
| CN110542443A (en) * | 2019-08-29 | 2019-12-06 | 无锡必创传感科技有限公司 | Intelligent sensor for preventing nut from loosening and falling |
| CN211317342U (en) * | 2019-08-29 | 2020-08-21 | 无锡必创传感科技有限公司 | Intelligent sensor for preventing nut from loosening and falling |
| CN110487472A (en) * | 2019-09-12 | 2019-11-22 | 广东工业大学 | A kind of bolt loaded state test device |
| CN212225730U (en) * | 2020-05-14 | 2020-12-25 | 罗洋 | Low-creep intelligent bolt |
| CN212320975U (en) * | 2020-05-28 | 2021-01-08 | 深圳市彬玉科技有限公司 | Wireless alarm device for detecting nut looseness |
| CN112362327A (en) * | 2020-11-12 | 2021-02-12 | 重庆大学 | Application method of intelligent threaded fastener |
Non-Patent Citations (2)
| Title |
|---|
| 刘坤;刘文雨;: "基于ABAQUS的螺栓预紧分析", 机械制造与自动化, no. 02, pages 78 - 86 * |
| 郭世忠;赵小映;: "水轮发电机组安装中螺栓连接的预紧与防松", 水利水电技术, no. 04, pages 105 - 107 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115070661A (en) * | 2022-07-19 | 2022-09-20 | 重庆大学 | Bolt fastening load intelligent control monitoring system and application method thereof |
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|---|---|
| CN113380013B (en) | 2023-11-03 |
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