CN114593167B - Friction plate loss alarm system based on optical signals - Google Patents
Friction plate loss alarm system based on optical signals Download PDFInfo
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- CN114593167B CN114593167B CN202210305296.2A CN202210305296A CN114593167B CN 114593167 B CN114593167 B CN 114593167B CN 202210305296 A CN202210305296 A CN 202210305296A CN 114593167 B CN114593167 B CN 114593167B
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- friction plate
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- 230000003287 optical effect Effects 0.000 title claims abstract description 76
- 239000013307 optical fiber Substances 0.000 claims abstract description 64
- 238000003780 insertion Methods 0.000 claims description 20
- 230000037431 insertion Effects 0.000 claims description 20
- 210000001503 joint Anatomy 0.000 claims description 13
- 239000000835 fiber Substances 0.000 claims description 8
- 230000000007 visual effect Effects 0.000 claims description 8
- 238000010030 laminating Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 46
- 238000001514 detection method Methods 0.000 abstract description 14
- 230000007547 defect Effects 0.000 abstract description 5
- 238000011179 visual inspection Methods 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 abstract 1
- 238000003032 molecular docking Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000007790 scraping Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 229920001875 Ebonite Polymers 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D66/02—Apparatus for indicating wear
- F16D66/021—Apparatus for indicating wear using electrical detection or indication means
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D66/02—Apparatus for indicating wear
- F16D66/021—Apparatus for indicating wear using electrical detection or indication means
- F16D66/022—Apparatus for indicating wear using electrical detection or indication means indicating that a lining is worn to minimum allowable thickness
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D66/02—Apparatus for indicating wear
- F16D66/021—Apparatus for indicating wear using electrical detection or indication means
- F16D66/028—Apparatus for indicating wear using electrical detection or indication means with non-electrical sensors or signal transmission, e.g. magnetic, optical
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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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a friction plate loss alarm system based on an optical signal, which relates to the technical field of real-time monitoring and alarm and comprises a fixed seat, a limiting assembly and a touch assembly, wherein the outer side of the bottom of the fixed seat is connected with a first electric push rod, the outer side of the bottom of the first electric push rod is provided with a connecting seat, and the outer side of the bottom of the connecting seat is connected with a brake block. According to the invention, the friction loss is judged by judging whether the replaceable contact optical fiber is broken or not by adopting a mode of reading the optical signal, compared with a visual inspection method, the cost of paving a camera can be reduced, and the replaceable contact optical fiber and the touch sensing component are integrated on the surface of the brake pad, so that the system can be operated in various narrow and complicated environments, the application range of equipment can be increased, various defects caused by manual detection can be avoided compared with a sound judging method, and the application of electricity on a brake piece can be avoided compared with an electric loop method, so that the adaptable range of the brake piece of the loss alarm system is wider.
Description
Technical Field
The invention relates to the technical field of real-time monitoring and alarming, in particular to a friction plate loss alarming system based on an optical signal.
Background
In a braking system, a mode of friction loss of kinetic energy of a friction plate and a rotating piece is generally used, the friction plate is lost in the braking process, the thickness of the friction plate is slowly reduced for a long time, and after the thickness is reduced to a certain thickness, the braking performance of the friction plate is also reduced, so that the performance of the whole set of braking system is influenced, the safety of the whole set of braking system is influenced, three methods of a visual inspection method, sound judgment and an electric loop method are generally adopted in a friction plate alarm system in a conventional braking system, and more electric loop methods are used.
In the common detection method in the market, the inspection method is a method of manual inspection or long-term monitoring by a camera, the method is time-consuming and labor-consuming, and is extremely difficult to operate in a narrow environment, namely, a friction plate is installed at the loss limit point position of the friction plate, and the friction plate emits sharp sound to judge when the friction plate is lost to a certain limit value, but the method needs manual detection, the electric circuit method is more currently used, the principle is that the electric circuit is judged by utilizing the on-off of the electric circuit, the electric circuit probe is usually installed on the side surface of the friction plate, the electric circuit is formed or cut off by the electric circuit probe, the method needs the conductivity of a braked part, and the whole braking system is electrified, so that the brake part which cannot be electrified is difficult to use, and the brake system which is wide in application range, simple in detection and wide in application range is lacked in the market.
Disclosure of Invention
The invention aims to provide a friction plate loss alarm system based on an optical signal so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a friction disc loss alarm system based on optical signal, includes fixing base, spacing subassembly and touch subassembly, the bottom outside of fixing base is connected with first electric putter, and the bottom outside of first electric putter is provided with the connecting seat, the bottom outside of connecting seat is connected with the brake block, the outside both ends of first electric putter are provided with spacing subassembly, the top outer end of brake block is connected with touch subassembly, touch subassembly includes casing, inferior valve, ejecting piece, docking rod, spring holder and contact member, the bottom outside of going up the casing is provided with down the casing, and the inboard middle-end of inferior valve is connected with ejecting piece, the inboard of ejecting piece is provided with docking rod, and docking rod's outer end is provided with the spring holder, docking rod's bottom outside is connected with the contact member, it has contact fiber to settle between casing and the inferior valve, and go up the outer end of casing and inferior valve body is connected with the linking board, contact fiber outer end electric connection has the extension optical cable.
Further, the inner surface of the connecting seat is attached to the outer surface of the brake pad, and the brake pad is fixedly connected with the upper shell through bolts.
Further, the contact optical fiber is connected with the upper shell and the lower shell in a clamping way, and the outer surface of the contact optical fiber is attached to the upper surface of the ejection block.
Further, the butt joint rod is in threaded connection with the ejection block, and the butt joint rod is in sleeved connection with the spring seat.
Furthermore, the ejection block is elastically connected with the spring seat through the butt joint rod, the butt joint rod and the contact piece are integrated, and the contact piece is semicircular.
Further, the limiting component comprises a telescopic rod, a second electric push rod and an insertion pin, wherein the outer end of the telescopic rod is connected with the second electric push rod, and the insertion pin is arranged on the outer side of the second electric push rod.
Furthermore, the connecting seat is connected with the brake pad in a clamping way through the inserting pin, and the inserting pin and the brake pad are distributed in a vertical way.
Further, the extension optical cable is electrically connected with an optical signal output/receiving module, the optical signal output/receiving module is electrically connected with a computer, and the extension optical cable is electrically connected with an audible and visual alarm.
Further, the contact optical fiber is electrically connected with the extension optical cable in series, and the extension optical cable is in a spring shape.
Further, the optical signal output/receiving module is electrically connected with the extension optical cable, and the optical signal output/receiving module is electrically connected with the extension optical cable.
The invention provides a friction plate loss alarm system based on optical signals, which has the advantages that friction loss is judged by judging whether a replaceable contact optical fiber is broken or not through adopting a mode of reading the optical signals, compared with a visual inspection method, the cost of laying a camera can be reduced, the replaceable contact optical fiber and a touch sensing component are integrated on the surface of a brake plate, the system can operate in various narrow and complicated environments, the application range of equipment can be improved, various defects caused by manual detection can be avoided compared with a sound judgment method, meanwhile, the influence of factors such as external noise on detection accuracy can be avoided, compared with an electric loop method, the power on a brake piece can be avoided, the adaptive brake piece range of the loss alarm system is wider, the shock absorption caused by contact between the contact piece and a rotating piece can be avoided through the design of a spring seat, the situation that the replaceable contact optical fiber breaks before the brake plate reaches the friction loss limit due to the fact that the ejection distance of the rotating piece is too long can be avoided, the equipment cannot generate report in the vibration environment, and meanwhile, the waste of the replaceable contact optical fiber cannot be guaranteed.
1. In the invention, in the process of contacting the brake pad with an external rotating member, the contact member is attached to the external rotating member, the contact member applies upward force to the ejection block under the action of external force, the ejection block applies pressure to the replaceable contact optical fiber until the replaceable contact optical fiber breaks, the optical signal disappears after the replaceable contact optical fiber breaks, the extension optical cable is responsible for transmitting the optical signal of the replaceable contact optical fiber to the optical signal output/receiving module, the computer can read the data received by the optical signal output/receiving module, when the computer cannot read the optical signal of the replaceable contact optical fiber, the computer can judge that the replaceable contact optical fiber breaks, and the computer can control the audible and visual alarm to send an alarm to remind that the friction loss of the brake pad reaches the limit.
2. According to the invention, the friction loss is judged by judging whether the replaceable contact optical fiber is broken or not by adopting a mode of reading the optical signal, compared with a visual inspection method, the cost of paving a camera can be reduced, and the replaceable contact optical fiber and the touch sensing assembly are integrated on the surface of the brake pad, so that the system can be operated in various narrow and complicated environments, the application range of equipment can be improved, various defects caused by manual detection can be avoided compared with a sound judgment method, meanwhile, the influence of factors such as external noise on the detection accuracy can be avoided, compared with an electric loop method, the electrifying on a brake piece can be avoided, the adaptable range of the loss alarm system is wider, and the application range of the equipment can be effectively improved.
3. The contact surface of the contact piece and the rotating piece is in a sphere shape, the contact area of the contact piece and the rotating piece can be greatly reduced by adopting the sphere shape, the damage of scraping the rotating piece caused by the contact of the hard contact piece and the rotating piece can be avoided, in addition, the design of the spring seat can absorb vibration caused by the contact between the contact piece and the rotating piece, the situation that the ejection distance of the ejection block is overlong due to overlarge vibration of the rotating piece, and the replaceable contact optical fiber is broken before the brake pad reaches the friction loss limit can be avoided, the equipment can be ensured not to generate false alarm in a vibration environment, meanwhile, the waste of the replaceable contact optical fiber can be ensured not to be generated, and in addition, the spring seat can enable the contact piece and the rotating piece to form soft contact to reduce friction, so that the use safety of the equipment can be further improved.
4. The extension optical cable is in a spring shape, the spring-shaped extension optical cable can be straightened in the process of driving the brake pad to displace by the first electric push rod, the situation that the replaceable contact optical fiber is directly stretched due to overlarge displacement force can be effectively avoided, in addition, the upper shell and the lower shell can be fixed into a whole by the connecting plate, in the process of fixing the replaceable contact optical fiber by the upper shell and the lower shell, the two ends of the replaceable contact optical fiber can be clamped, the replaceable contact optical fiber in the upper shell and the lower shell can be always in a straightened state, so that the ejection stretch-breaking sensitivity of equipment is ensured, in addition, the two ends of the replaceable contact optical fiber can be clamped, the situation that the replaceable contact optical fiber cannot deviate in the use process is effectively ensured, and the working stability of the equipment can be effectively ensured.
5. When the brake pad reaches the wear limit and needs to be replaced, the second electric push rod works to drive the insertion pin to displace, so that the insertion pin can withdraw from the clamping hole between the connecting seat and the brake pad, the clamping limit of equipment on the brake pad can be released, the brake pad can be quickly replaced, the replacement convenience of the brake pad can be improved, in addition, the upper shell and the brake pad can be separated by unscrewing the fixing bolt at the top of the upper shell, the touch sensing assembly can be disassembled and reused, the broken contact optical fiber in the touch sensing assembly can be replaced by disassembling the upper shell and the lower shell, and the detection cost of the equipment can be greatly reduced by the repeated utilization of the touch sensing assembly and the disassembly and replacement of the contact optical fiber
Drawings
FIG. 1 is a schematic diagram of the whole structure of a friction plate loss alarm system based on optical signals in front view;
FIG. 2 is a schematic diagram of a limit component of a friction plate loss alarm system based on optical signals;
FIG. 3 is a schematic diagram of the overall structure of a touch module of a friction plate loss alarm system based on optical signals according to the present invention;
FIG. 4 is a schematic diagram of the external structure of a touch module of a friction plate loss alarm system based on optical signals according to the present invention;
FIG. 5 is a schematic diagram of an induction flow of a friction plate loss alarm system based on optical signals according to the present invention.
In the figure: 1. a fixing seat; 2. a first electrical push rod; 3. a connecting seat; 4. a brake pad; 5. a limit component; 501. a telescopic rod; 502. a second electric push rod; 503. inserting a pin; 6. a touch sensing assembly; 601. an upper housing; 602. a lower housing; 603. an ejection block; 604. a butt joint rod; 605. a spring seat; 606. a contact; 7. contacting the optical fiber; 8. a splice plate; 9. extending the optical cable; 10. an optical signal output/receiving module; 11. a computer; 12. an audible and visual alarm.
Detailed Description
Referring to fig. 1-5, the present invention provides the following technical solutions: the utility model provides a friction disc loss alarm system based on optical signal, including fixing base 1, spacing subassembly 5 and sense of touch subassembly 6, the bottom outside of fixing base 1 is connected with first electric putter 2, and the bottom outside of first electric putter 2 is provided with connecting seat 3, the bottom outside of connecting seat 3 is connected with brake block 4, the outside both ends of first electric putter 2 are provided with spacing subassembly 5, the top outer end of brake block 4 is connected with sense of touch subassembly 6, sense of touch subassembly 6 includes casing 601, lower casing 602, ejecting piece 603, docking rod 604, spring holder 605 and contact 606, the bottom outside of casing 601 is provided with casing 602 down, and the inboard middle-end of casing 602 is connected with ejecting piece 603 down, the inboard of ejecting piece 603 is provided with docking rod 604, and the outer end of docking rod 604 is provided with spring holder 605, the bottom outside of docking rod 604 is connected with contact 606, it has contact fiber 7 to settle between casing 601 and the casing 602 down, and the outer end of casing 601 and 602 is connected with linking plate 8 down, contact 7 outer end electric connection has extension optical cable 9.
Referring to fig. 1, 3, 4 and 5, the inner surface of the connection seat 3 is attached to the outer surface of the brake pad 4, the brake pad 4 is fixedly connected with the upper housing 601 through bolts, the contact optical fiber 7 is in snap connection with the upper housing 601 and the lower housing 602, the outer surface of the contact optical fiber 7 is attached to the upper surface of the ejection block 603, the butt rod 604 is in threaded connection with the ejection block 603, the butt rod 604 is in sleeved connection with the spring seat 605, the ejection block 603 is elastically connected with the spring seat 605 through the butt rod 604, the butt rod 604 is integrated with the contact 606, the contact 606 is semicircular, the extension optical cable 9 is electrically connected with the optical signal output/receiving module 10, the optical signal output/receiving module 10 is electrically connected with the computer 11, the computer 11 is electrically connected with the audible and visual alarm 12, the contact optical fiber 7 is electrically connected with the extension optical cable 9 in series, the extension optical cable 9 is in a spring shape, the optical signal output/receiving module 10 is electrically connected with the extension optical cable 9, and the optical signal output/receiving module 10 is electrically connected with the computer 11;
the system is specifically operated as follows, in the braking process, the first electric push rod 2 at the outer end of the fixed seat 1 can be controlled to push out, in the pushing-out process, the first electric push rod 2 can enable the connecting seat 3 to drive the brake block 4 to displace, the brake block 4 can be contacted with a rotating object, the brake block 4 is made of hard rubber materials, the rotating object can be rapidly stopped rotating through extrusion friction between the rubber materials and the rotating object, the purpose of braking is achieved, the thickness of the brake block 4 can be gradually thinned due to friction effect after long-time use, when the wear position of the brake block 4 is in a horizontal position with the contact piece 606, in the contacting process of the brake block 4 and an external rotating piece, the contact piece 606 can be attached with the external rotating piece, and under the action of external force, the contact piece 606 can apply upward moving force to the ejection block 603, at this time, the ejector 603 applies pressure to the contact optical fiber 7 until the contact optical fiber 7 is broken, the optical signal disappears after the contact optical fiber 7 is broken, the extension optical cable 9 is responsible for transmitting the optical signal of the contact optical fiber 7 to the optical signal output/receiving module 10, the computer 11 can read the data received by the optical signal output/receiving module 10, when the computer 11 cannot read the optical signal of the contact optical fiber 7, the computer 11 can determine that the contact optical fiber 7 has broken, at this time, the computer 11 can control the audible and visual alarm 12 to send out an alarm to remind the brake pad 4 that the friction loss reaches the limit, the friction loss is determined by adopting the mode of reading the optical signal to determine whether the contact optical fiber 7 is broken, compared with the observation method, the cost of paving a camera can be reduced, and the contact optical fiber 7 and the touch sensing component 6 are integrated on the surface of the brake pad 4, the system can operate in various narrow and complicated environments, the application range of the equipment can be improved, various defects caused by manual detection can be avoided compared with a sound judging method, the influence of external noise and other factors on detection accuracy can be avoided, compared with an electric loop method, the braking part range which can be matched with a loss alarm system is wider, the application range of the equipment can be effectively improved, the contact surface of the contact piece 606 and the rotating part is in a sphere shape, the contact area of the contact piece 606 and the rotating part can be greatly reduced by adopting the sphere shape, the damage of scraping of the rotating part caused in the process of contacting the hard contact piece 606 and the rotating part can be avoided, in addition, the design of the spring seat 605 can absorb shock caused by contact between the contact piece 606 and the rotating part, the situation that the ejection block 603 is excessively long due to overlarge vibration of the rotating piece, so that the contact optical fiber 7 breaks before the brake block 4 reaches the friction loss limit can be avoided, false alarm is not generated in the vibration environment of the equipment, waste is not generated in the contact optical fiber 7, in addition, the spring seat 605 can enable soft contact between the contact element 606 and the rotating piece to reduce friction, the use safety of the equipment can be further improved, the extension optical cable 9 is spring-shaped, the spring-shaped extension optical cable 9 can be straightened in the process that the first electric push rod 2 drives the brake block 4 to displace, the situation that the contact optical fiber 7 is directly stretched due to overlarge displacement force can be effectively avoided, in addition, the upper shell 601 and the lower shell 602 can be fixed into a whole by the connecting plate 8, in the fixing process of the upper shell 601 and the lower shell 602 to the contact optical fiber 7, the two ends of the contact optical fiber 7 can be clamped, this can guarantee that the contact fiber 7 in upper casing 601 and the lower casing 602 is in the state of stretching all the time to ensure the sensitivity that equipment is ejecting to stretch out, in addition to carry out the centre gripping to the both ends of contact fiber 7, can effectively guarantee that it can not take place the skew in the use, this makes the job stabilization nature of equipment effectively ensured.
Referring to fig. 1 and 2, the limiting assembly 5 includes a telescopic rod 501, a second electric push rod 502 and an insertion pin 503, the outer end of the telescopic rod 501 is connected with the second electric push rod 502, the outer side of the second electric push rod 502 is provided with the insertion pin 503, the connection seat 3 is in clamping connection with the brake pad 4 through the insertion pin 503, and the insertion pin 503 and the brake pad 4 are vertically distributed;
the brake pad 4 reaches the wear limit, when the brake pad 4 needs to be replaced, the second electric push rod 502 works, the second electric push rod 502 can drive the insertion pin 503 to displace, the insertion pin 503 can withdraw from the clamping hole between the connecting seat 3 and the brake pad 4, so that the clamping limit of the device to the brake pad 4 can be released, the brake pad 4 can be replaced quickly, the replacement convenience of the brake pad 4 can be improved, in the process that the first electric push rod 2 drives the brake pad 4 to displace, the telescopic rod 501 can drive the insertion pin 503 to displace synchronously, the insertion pin 503 can be guaranteed to be clamped and fixed to the brake pad 4 all the time, in addition, the upper shell 601 and the brake pad 4 can be separated by unscrewing the fixing bolt at the top of the upper shell 601, the touch sensing assembly 6 can be disassembled and reused, the broken contact optical fiber 7 in the touch sensing assembly 6 can also be replaced through the upper shell 601 and the lower shell 602, and the cost of the device can be greatly reduced.
In summary, when the friction plate loss alarm system based on the optical signal is used, firstly, in the braking process of the system, the first electric push rod 2 at the outer end of the fixed seat 1 can be controlled to push out, and in the pushing-out process of the first electric push rod 2, the connecting seat 3 can drive the brake plate 4 to displace, so that the brake plate 4 can be in contact with a rotating object, the brake plate 4 is made of a hard rubber material, and the rotating object can be rapidly stopped to rotate by extrusion friction between the rubber material and the rotating object, so that the purpose of braking is realized;
then the thickness of the brake pad 4 becomes thinner gradually due to friction after long-time use, when the wear position of the brake pad 4 and the contact piece 606 are in the horizontal position, the contact piece 606 is attached to an external rotating piece in the process of contacting the brake pad 4 with the external rotating piece, the contact piece 606 applies upward force to the ejection piece 603 under the action of external force, at this moment, the ejection piece 603 applies pressure to the contact optical fiber 7 until the contact optical fiber 7 breaks, after the contact optical fiber 7 breaks, the optical signal disappears, the extension optical cable 9 is responsible for transmitting the optical signal of the contact optical fiber 7 to the optical signal output/receiving module 10, the computer 11 can read the data received by the optical signal output/receiving module 10, when the computer 11 cannot read the optical signal of the contact optical fiber 7, the contact optical fiber 7 can be judged to have broken, at this time, the computer 11 can control the audible and visual alarm 12 to give an alarm to remind the brake pad 4 of reaching the limit of friction loss, and judge the friction loss by judging whether the contact optical fiber 7 is broken or not by adopting a mode of reading an optical signal, compared with a visual method, the cost of laying a camera can be reduced, and the contact optical fiber 7 and the touch sensing component 6 are integrated on the surface of the brake pad 4, so that the system can operate in various narrow and complicated environments, the application range of the equipment can be improved, various defects caused by manual detection can be avoided compared with an audible judging method, meanwhile, the influence of factors such as external noise on the detection accuracy can be avoided, and compared with an electric loop method, the power on a brake piece can be avoided, so that the adaptable brake piece range of the loss alarm system is wider, and the application range of the equipment can be effectively improved;
then in the process of contacting the contact piece 606 with the rotating piece, the design of the spring seat 605 can absorb vibration caused by contacting the contact piece 606 with the rotating piece, so that the situation that the ejection distance of the ejection block 603 is too long due to overlarge vibration of the rotating piece, and the contact optical fiber 7 breaks before the brake pad 4 reaches the friction loss limit can be avoided, false alarm is avoided in a vibration environment, meanwhile, waste of the contact optical fiber 7 can be avoided, in addition, the spring seat 605 can enable soft contact between the contact piece 606 and the rotating piece to be formed, friction is reduced, in addition, the contact piece 606 is spherical, the contact area of the contact piece 606 and the rotating piece can be greatly reduced by adopting the spherical shape, the damage caused by scraping of the rotating piece in the process of contacting the hard contact piece 606 with the rotating piece can be avoided, and the use safety of the device can be further improved;
then in the process that the first electric push rod 2 drives the brake block 4 to displace, the spring-shaped extension optical cable 9 can be straightened, so that the situation that the contact optical fiber 7 is directly stretched due to overlarge displacement force can be effectively avoided, in addition, the upper shell 601 and the lower shell 602 can be fixed into a whole by the connecting plate 8, in the process that the upper shell 601 and the lower shell 602 are fixed with the contact optical fiber 7, the two ends of the contact optical fiber 7 can be clamped, the contact optical fiber 7 in the upper shell 601 and the lower shell 602 can be always in a straightened state, the ejection stretch-breaking sensitivity of equipment is ensured, in addition, the two ends of the contact optical fiber 7 can be clamped, the situation that the contact optical fiber 7 is not deflected in the use process is effectively ensured, and the working stability of the equipment can be effectively ensured;
finally, when the brake pad 4 reaches the wear limit and needs to be replaced, the second electric push rod 502 works, the second electric push rod 502 can drive the insertion pin 503 to displace, the insertion pin 503 can withdraw from the clamping hole between the connecting seat 3 and the brake pad 4, so that the clamping limit of the device to the brake pad 4 can be released, the brake pad 4 can be replaced quickly, the replacement convenience of the brake pad 4 can be improved, in the process that the first electric push rod 2 drives the brake pad 4 to displace, the telescopic rod 501 can drive the insertion pin 503 to displace synchronously, the insertion pin 503 can be guaranteed to be clamped and fixed to the brake pad 4 all the time, in addition, the upper shell 601 and the brake pad 4 can be separated by unscrewing the fixing bolt at the top of the upper shell 601, the device can be disassembled and reused, the broken contact optical fiber 7 in the touch sensing assembly 6 can also be replaced by disassembling the upper shell 601 and the lower shell 602, and the detection cost of the device can be greatly reduced by disassembling and replacing the contact optical fiber 7.
Claims (6)
1. The friction plate loss alarm system based on the optical signals is characterized by comprising a fixed seat (1), a limit component (5) and a touch sensing component (6), wherein the outer side of the bottom of the fixed seat (1) is connected with a first electric push rod (2), the outer side of the bottom of the first electric push rod (2) is provided with a connecting seat (3), the outer side of the bottom of the connecting seat (3) is connected with a brake block (4), the two ends of the outer part of the first electric push rod (2) are provided with limit components (5), the outer end of the top of the brake block (4) is connected with the touch sensing component (6), the touch sensing component (6) comprises an upper shell (601), a lower shell (602), an ejection block (603), a butt joint rod (604), a spring seat (605) and a contact piece (606), the outer side of the upper shell (601) is provided with a lower shell (602), the inner middle end of the inner side of the lower shell (602) is connected with the ejection block (603), the outer end of the butt joint rod (604) is provided with the spring seat (605), the butt joint rod (604), the outer end of the butt joint rod (604) is connected with the outer side of the lower shell (606) and the contact piece (7), and go up the outer end of casing (601) and casing (602) down and be connected with adapter plate (8), contact optic fibre (7) outer end electric connection has extension optical cable (9), contact optic fibre (7) and last casing (601), lower casing (602) block are connected, and contact optic fibre (7) surface and ejecting piece (603)'s upper surface laminating mutually, butt joint pole (604) and ejecting piece (603) threaded connection, and butt joint pole (604) cup joint with spring holder (605), ejecting piece (603) are through butt joint pole (604) and spring holder (605) elastic connection, and butt joint pole (604) are as an organic whole with contact (606), and contact (606) are semicircle.
2. The friction plate loss alarm system based on the optical signal according to claim 1, wherein the inner surface of the connecting seat (3) is attached to the outer surface of the brake pad (4), and the brake pad (4) is fixedly connected with the upper shell (601) through bolts.
3. The friction plate loss alarm system based on the optical signal according to claim 1, wherein the limiting assembly (5) comprises a telescopic rod (501), a second electric push rod (502) and an insertion pin (503), the outer end of the telescopic rod (501) is connected with the second electric push rod (502), and the outer side of the second electric push rod (502) is provided with the insertion pin (503).
4. A friction plate loss alarm system based on optical signals according to claim 3, wherein the connecting seat (3) is in clamping connection with the brake pad (4) through the insertion pin (503), and the insertion pin (503) and the brake pad (4) are vertically distributed.
5. The friction plate loss alarm system based on the optical signal according to claim 1, wherein the extension optical cable (9) is electrically connected with an optical signal output/receiving module (10), the optical signal output/receiving module (10) is electrically connected with a computer (11), and the computer (11) is electrically connected with an audible and visual alarm (12).
6. The friction plate loss alarm system based on optical signals according to claim 1, characterized in that the contact optical fiber (7) is electrically connected in series with the extension optical cable (9), and the extension optical cable (9) is spring-shaped.
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| CN202210305296.2A CN114593167B (en) | 2022-03-25 | 2022-03-25 | Friction plate loss alarm system based on optical signals |
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| JP2000018295A (en) * | 1998-07-01 | 2000-01-18 | Nisshinbo Ind Inc | Abrasion warning device for frictional material |
| EP1243808A1 (en) * | 2001-03-23 | 2002-09-25 | ROBERT BOSCH GmbH | Friction lining wear sensor and procedure for the detection of wear by such a sensor |
| JP2008144914A (en) * | 2006-12-12 | 2008-06-26 | Toyota Motor Corp | Wear alarm device of disk brake device |
| JP2009299714A (en) * | 2008-06-10 | 2009-12-24 | Akebono Brake Ind Co Ltd | Abrasion detection device of brake shoe, brake shoe having the same and abrasion detection system |
| CN109027072A (en) * | 2018-08-27 | 2018-12-18 | 上海新奥林汽车传感器有限公司 | A kind of brake block wear sensor |
| CN213628614U (en) * | 2020-09-25 | 2021-07-06 | 恒大新能源汽车投资控股集团有限公司 | Excessive wear alarm system for pressing block friction plate of steering gear and automobile |
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2022
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Patent Citations (6)
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|---|---|---|---|---|
| JP2000018295A (en) * | 1998-07-01 | 2000-01-18 | Nisshinbo Ind Inc | Abrasion warning device for frictional material |
| EP1243808A1 (en) * | 2001-03-23 | 2002-09-25 | ROBERT BOSCH GmbH | Friction lining wear sensor and procedure for the detection of wear by such a sensor |
| JP2008144914A (en) * | 2006-12-12 | 2008-06-26 | Toyota Motor Corp | Wear alarm device of disk brake device |
| JP2009299714A (en) * | 2008-06-10 | 2009-12-24 | Akebono Brake Ind Co Ltd | Abrasion detection device of brake shoe, brake shoe having the same and abrasion detection system |
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