• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Abstract An axial light sensing type deflection monitoring apparatus for a hoist braking disc,comprising a base (10) and a sliding rod (14). The sliding rod (14) can slide in acentral axis direction of the base (1 O). A light source generating unit and a light sourcereceiving unit are symmetrically disposed on the inner sides of two side walls of thecentral axis of the base (14). Square holes, nam ely first light-transmitting holes (25)and second light-transmitting holes (22) having the same size in the same axis areprovided on two opposite side faces of the light source generating unit and the lightsource receiving unit. Square through holes (24) as large as the square holes areprovided on the sliding rod (14). By converting axial jumping of a hoist braking discinto movement of square through holes on a sliding rod, an axial jum ping value of thebraking disc is obtained using a light sensing principle, and a deflection quantity of thehoist braking disc is obtained by conversion. The deflection of the hoist braking disccan be monitored in real time. The apparatus can monitor, without changing anoriginal hoisting device, a deflection situation of the hoist braking disc in real time, and can monitor the state of the hoist braking disc.
    公开号:SE1730246A1
    申请号:SE1730246
    申请日:2015-08-10
    公开日:2017-09-12
    发明作者:Zhu Zhencai；TENG Wenxiang；Shen Gang；Li Xiang；Li Wei；Zhou Gongbo；Cao Guohua；Peng Yuxing
    申请人:Univ China Mining & Tech；
    IPC主号:
    专利说明:

    Axial Light Sensing Type Deflection Monitoring Apparatus and Method for HoistBraking Disc Field of the lnvention The present invention relates to the field of real-time monitoring of hoists brake discsof mine shaft, in particular to axiai light sensing type deflection monitoring apparatus and method for hoist brake disc.
    Background of the lnvention Mine shaft hoists are one of the important and essential equipment in mines, and aremainly used for hoisting and lowering personnel, hoisting coal, ores, and transportingmaterials and equipment in coal mines, metal mines, and non-metal mines. They areimportant transport means for connecting the surface installations with theunderground installations, take an important role in mine shafts, and are importantapparatuses in mines. Therefore, safe, reliable, effective, and high-speed operation ofhoists has direct influences on the production situation and economic benefits ofenterprises. The brake is one of the indispensable and important components of ahoist, and is the most important and the last safeguard means for a hoist. Therefore,the reliability of the brake has direct influences on the safe operation of a hoist. Atpresent, most mine hoists employ a disc brake, wherein, the brake disc of the hoist ismounted on the drum of the hoist, and is an important component of the mine shafthoist. The braking process of a hoist is accomplished by the friction force generated bythe friction between the brake disc and the brake shoe of the hoist. The performanceof the brake disc of hoist has direct influences on the normal operation and safety of a mine shaft.
    The "Coal Mine Safety Regulation" in China specifies: "the end face deflection of thebrake disc of a mine shaft hoist shall not be greater than 0.50mm before use and shallnot be greater than 1mm in use". ln recent years, a problem of out-of-limit brake discdeflection of the disc-type braking system for mine shaft hoist is very common. Thesymptoms include: the brake holder sways, the brake shoe plays, and the clearancebetween the brake disc and the brake shoe is not uniform. During braking, the main shaft plays, the braking torque is insufficient severely, a risk of slide-down always exists, and personal safety is endangered. Hence, it is very important to monitor the brake disc deflection in real time during the operation of a hoist.
    At present, some domestic and foreign researchers have put forward some preventivemeasures against the problem of out-of-limit brake disc deflection of hoists. Thesepreventive measures mainly focus on manufacturing, transportation, storage, andinstallation of brake discs, etc., so as to ensure the quality of brake discs. However,during the operation of a hoist, out-of-limit brake disc deflection is mainly judgedacoustically and visually for a person, such as cylinder jamming and oil circuit clogging, etc. Such an approach has a lagging characteristic, and may result in misjudgment.
    Contents of the lnvention Object of the invention: To overcome the drawbacks in the prior art, the presentinvention provides an axial light sensing type deflection monitoring apparatus andmethod for a hoist brake disc, which measure the quantity of deflection of a hoistbrake disc in real time under a photosensitive principle, and thereby monitor brake disc failures of the hoist.
    Technical scheme: To attain the object described above, the present invention em ploys the following technical scheme: An axial light sensing type deflection monitoring apparatus for a hoist brake disc,com prising a base and a slide rod, the tail part of the slide rod passes through one endof the base in the central axis direction of the base that is in a rectangular shape andis arranged in the base, and the slide rod can slide in the central axis direction of thebase; a light source generating unit and a light source receiving unit aresymmetrically disposed on the inner sides of two side walls of the central axis of thebase, the light source generating unit and the light source receiving unit have squareholes with the same size in the same axial line arranged on opposite sides, which aredenoted as first light hole and second light hole, and the slide rod has a square through-hole with the same size as the square holes.
    Furthermore, in the present invention, the light source generating unit comprises alight source generating box fixed to a side wall of the base, and a power supply unit,an optical source, and a first lens disposed in the light source generating box and connected sequentially; the light source receiving unit comprises a light source receiving box fixed to aside wall of the base, and a signal processing unit, an optical sensor, and a second lens disposed in the light source receiving box and connected sequentially.
    Furthermore, in the present invention, the optical source, first lens, and first light hole are in the same axial line as the optical sensor, second lens, and second light hole.
    Furthermore, in the present invention, a slide plate is fixed vertically to the tail part ofthe slide rod, a pair of guide rods are fixed symmetrically on the upper part and lowerpart of the slide plate, the tail parts of the guide rods are connected with a base platearranged in parallel to the slide plate, and the base plate is fixedly connected to the base; springs fitted over the guide rods are arranged between the base plate and the slideplate.
    Furthermore, in the present invention, first guide holes are arranged symmetrically inthe upper part and lower part of the base plate, first guide sleeves are mounted in the first guide holes, and the guide rods are in clearance fit with the first guide sleeves.
    Furthermore, in the present invention, a second guide hole is arranged in a frontside wall of the base, a second guide sleeve is mounted in the second guide hole, and the slide rod is in clearance fit with the second guide sleeve; the base is arranged in a rectangular casing, a rear side wall of the base closelyadheres to the inner wall of a back plate of the casing, and the central axis of the baseis in the same axial line as the central axis of the casing; a third guide hole is arrangedin a front plate of the casing, a third guide sleeve is mounted in the third guide hole, and the slide rod is in clearance fit with the third guide sleeve.
    A monitoring method of the axial light sensing type deflection for a hoist brake disc,monitoring at test points of a brake disc of the hoist, and comprises the followingsteps: 1) initial state: the square through-hole is in the same axial line asthe first light hole and the second light hole, and the springs are in a compressed state; 2) movement and displacement: when the brake disc rotates and has deflection, theslide rod will be driven to have a displacement that varies with time, andmisalignment value that varies with time will occur between the square through-hole and the first light hole and second light hole, and the quantity of light that reaches to the optical sensor will vary accordingly, the quantity ofdeflection of the brake disc is in a linear relationship with the quantity of light that reaches to the optical sensor; 3) signal processing: the optical sensor outputs a varying signal, the signal isprocessed by the signal processing unit and then transmitted to an industrial PC, so that the deflection of the brake disc is monitored in real time.
    Furthermore, in the present invention, a roller that abuts against the brake disc isarranged on a head part of the slide rod; in the step 1), the angular velocity directionof the roller is in the orientation from the measuring point to the center of a main shaftof the hoist; namely, the linear velocity direction of the brake disc at the measuringpoint is perpendicular to the angular velocity direction of the roller in the end face of the brake disc.
    Furthermore, in the present invention, two or more test points are selected to carry out monitoring sim ultaneously.
    Beneficial effects: ln the present invention, the axial jumping of the brake disc of ahoist is converted into the movement of the square through-hole in the slide rod, andthe axial jumping value of the brake disc is measured under a photosensitive principle,and the quantity of deflection of the hoist brake disc is obtained through conversion;the varying signal of the optical sensor is processed by the signal processing unit, andthen transmitted via a wireless transmitter chip to an industrial PC, so that thedeflection of the hoist brake disc is monitored in real time. The present invention canmonitor the deflection of a hoist brake disc in real time without modifying the originalhoist device, and thereby realizes monitoring of the state of the hoist brake disc, andis of guiding significance for monitoring the operating state of a hoist braking system.The axial light sensing type deflection monitoring apparatus for a hoist brake disc issimple in structure and easy to use, reduces manual intervention, and improves the accuracy of deflection failure diagnosis for a hoist brake disc.
    Description of the Drawings Fig. 1 is a schem atic diagram of operation of the apparatus according to the present invenflon; Fig. 2 is a schem atic diagram of the internal structure of the apparatus according to the present invention; Fig. 3 is a schematic diagram of the base of the apparatus according to the present invention. ln the figures: 1 - brake support; 2 - brake; 3 - brake disc; 4 - hoist drum; 5 - supportplate of the apparatus according to the present invention; 6 - apparatus according tothe present invention; 7 - main shaft of hoist; 8 - bearing seat; 9 - casing; 10 - base;11 - front plate; 12 - guide sleeve; 13 - roller; 14 - slide rod; 15 - base plate; 16 -guide sleeve; 17 - slide plate; 18 - signal processing unit; 19 - optical sensor; 20 -light source receiving box; 21 - second lens; 22 - second light hole; 23 - guide sleeve;24 - square through-hole; 25 - first light hole; 26 -first lens; 27 - optical source; 28- power supply; 29 - light source generating box; 30 - spring; 31 - guide rod.
    Embodiments Hereunder the present invention will be further detailed in embodiments, with reference to the accompanying drawings.
    As shown in Figs. 2 and 3, an axial light sensing type deflection monitoring apparatusfor a hoist brake disc, comprising a base 10 and a slide rod 14, the tail part of the sliderod 14 passes through an end of the base 10 in the central axis direction of the base10 that is in a rectangular shape and is arranged in the base 10, and the slide rod 14can slide in the central axis direction of the base 10; a light source generating unit anda light source receiving unit are symmetrically disposed on the inner sides closing tothe front plate of two side walls of the central axis of the base (10), the light sourcegenerating unit and the light source receiving unit have square holes with the samesize in the same axial line arranged on opposite sides, which are denoted as first lighthole 25 and second light hole 22, and the slide rod 14 has a square through-hole 24 with the same size as the square holes.
    Wherein, the light source generating unit comprises a light source generating box 29fixed to a side wall of the base 10, and a power supply unit 28, an optical source 27,and a first lens 26 disposed in the light source generating box 29 and connectedsequentially; the light source receiving unit com prises a light source receiving box 20fixed to a side wall of the base 10, and a signal processing unit 18, an optical sensor19, and a second lens 21 disposed in the light source receiving box 20 and connectedsequentially. Wherein, the optical source 27, first lens 26, and first light hole 25 are in the same axial line as the optical sensor 19, second lens 21, and second light hole 22.
    Aslide plate 1 7 is fixed vertically to the tail part of the slide rod 14, a pair of guide rods31 are fixed symmetrically on the upper part and lower part of the slide plate 17, thetail parts of the guide rods 31 are connected with a base plate 15 arranged in parallelto the slide plate 17, and the base plate 15 isfixedly connected to the base 10; springs30 fitted over the guide rods 31 are arranged between the base plate 15 and the slideplate 17, so that the slide plate 17 and the slide rod 14 move in relation to the fixedbase plate 15 with the springs. First guide holes are arranged symmetrically in theupper part and lower part of the base plate 15, first guide sleeves 16 are mounted inthe first guide holes, and the guide rods 31 are in clearance fit with the first guide sleeves 16.
    A second guide hole is arranged in a front side wall of the base 10, a second guidesleeve 23 is mounted in the second guide hole, and the slide rod 14 is in clearancefit with the second guide sleeve 23; the base 10 is arranged in a rectangular casing 9,the casing 9 is fixed to a foundation, a rear side wall of the base 10 closely adheres tothe inner wall of a back plate of the casing 9, and the central axis of the base 10 is inthe same axial line as the central axis of the casing 9; a third guide hole is arrangedin a front plate of the casing 9, a third guide sleeve 12 is mounted in the third guide hole, and the slide rod 14 is in clearance fit with the third guide sleeve 12.
    Em bodiment 1 As shown in Fig. 1, the main shaft assembly of a hoist comprises a hoist drum 4, ahoist main shaft 7, and a main bearing 8. A brake disc 3 is fixed to an end face of thehoist drum 4, the hoist drum 4 is fixed to the hoist main shaft 7, the hoist main shaft7 is fixed to a bearing seat 8 via the main bearing, and a casing 9 of the apparatus 6according to the present invention is fixed to a brake support 1 via a support plate 5.When the hoist operates, the hoist main shaft 7 drives the hoist drum 4 to rotate, and the brake disc 3 rotates at the same time; thus, the apparatus 6 according to the present invention starts to work. lf safety braking is required owing to a failure in thehoisting system during operation or service braking is required during normaloperation, a brake shoe of the brake 2 clings to the brake disc 3 closely and generates a braking torque to stop the brake disc 3.
    The apparatus 6 according to the present invention is placed at a test point of the hoistbrake disc 3 for monitoring; a roller 13 that abuts against the brake disc 3 is arrangedon the head part of the slide rod 14; first, an appropriate measuring point is selectedon the brake disc 3 of the hoist according to the height of the apparatus 6 provided inthe present invention, the rotation positions of the slide rod 14 and the slide plate 17are adjusted, so that the angular velocity direction of the roller 13 on the detectingapparatus is in the orientation from the measuring point to the center of the mainshaft of the hoist; namely, the linear velocity direction of the brake disc 3 at themeasuring point is perpendicular to the angular velocity direction of the roller 13 inthe end face of the brake disc 3. On a premise that the movement of the oil cylinderof the brake is not interfered, the mounting position of the apparatus 6 provided in thepresent invention on the brake support 1 is determined, so that the two springs 30fitted over the guide rods 31 are in a com pressed state, and the signal output from theapparatus provided in the present invention reaches the strongest signal. To ensurethe accuracy of measurement, a plurality of the apparatuses provided in the presentinvention could be mounted at appropriate positions on the brake support, and a plurality of test points could be selected to carry out monitoring sim ultaneously.
    A monitoring method of the axial light sensing type deflection for a hoist brake disc, comprising the following steps: 1) initial state: in the initial state of the apparatus, the square through-hole 24 is inthe same axial line as the first light hole 25 and the second light hole 22, and the springs 30 are in a compressed state; 2) movement and displacement: when the brake disc 3 rotates and has deflection,the slide rod 14 will be driven to have a displacem ent that varies with time, andmisalignment value that varies with time willthrough-hole 24 and the first light hole 25 and second light hole 22, and the light that 19 will occur between the square quantity of reaches to the optical sensor vary accordingly, wherein, the quantity of deflection of the brake disc 3 is in a linear relationship with the quantity of light that reaches to the optical sensor 19; 3) signal processing: the optical sensor 19 outputs a varying signal, the signal isprocessed by the signal processing unit 18, and then transmitted via a wirelesstransmitter chip to an industrial PC, so that the deflection of the hoist brake disc 3 is monitored in real time. ln the present invention, the axial jum ping of the brake disc 3 of a hoist is convertedinto the movement of the square through-hole 24 in the slide rod 14, and the axialjum ping value of the brake disc 3 is measured under a photosensitive principle, andthe quantity of deflection of the hoist brake disc 3 is obtained throughconversion; when the quantity of deflection of the hoist brake disc 3 is O, the opticalsensor 19 receives the largest quantity of light, and the signal output from the opticalsensor 19 is the strongest signal; when the quantity of deflection of the hoist brakedisc 3 is not O, misalignment will occur between the square through-hole 24 in theslide rod 14 and the first light hole 25 and second light hole 22; consequently, thequantity of light that reaches to the optical sensor 19 will be decreased, and the signaloutput will be decreased accordingly; the varying signal of the optical sensor 19 isprocessed by the signal processing unit 18, and then transmitted via a wirelesstransmitter chip to an industrial PC, so that the deflection of the hoist brake disc 3 ismonitored in real time. The present invention can monitor the deflection of a hoistbrake disc in real time without modifying the original hoist device; to ensure theaccuracy of the measured data, the apparatus can be used simultaneously at twomeasuring points of the hoist, and the average value of the measurements can beobtained via the signal processing unit 18; and thereby realizes monitoring of thestate of the hoist brake disc, and is of guiding significance for monitoring the operating state of a hoist braking system.
    While the present invention has been illustrated and described with reference to somepreferred embodiments, the present invention is not limited to these. Those skilled inthe art should recognize that various variations and modifications can bemade without departing from the spirit and scope of the present invention. All of suchvariations and modifications shall be deem ed as falling into the protected scope of the present invention.
    权利要求:
    Claims (4)
    [1] 1. ) initial state: the square through-hole (24) is in the same axial line as thefirst light hole (25) and the second light hole (22), and the springs (30) are in a compressed state;
    [2] 2. ) movement and displacement: when the brake disc (3) rotates and hasdeflection, the slide rod (14) will be driven to have a displacement thatvaries with time, and misalignment value that varies with time will occurbetween the square through-hole (24) and the first light hole (25) andsecond light hole (22), and the quantity of light that reaches to the opticalsensor (19) will vary accordingly, the quantity of deflection of the brakedisc (3) is in a linear relationship with the quantity of light that reaches to the optical sensor (19); 11
    [3] 3. ) signal processing: the optical sensor (19) outputs a varying signal, thesignal is processed by the signal processing unit (18) and then transmittedto an industrial PC, so that the deflection of the brake disc (3) is monitored in real time. The monitoring method of the axial light sensing type deflection for a hoist brakedisc according to claim 7, wherein, a roller (13) that abuts against the brake disc(3) is arranged on a head part of the slide rod (1
    [4] 4. ); in the step 1), the angularvelocity direction of the roller (13) is in the orientation from the measuring pointto the center of a main shaft of the hoist; nam ely, the linear velocity direction ofthe brake disc (3) at the measuring point is perpendicular to the angular velocity direction of the roller (13) in the end face of the brake disc (3). The monitoring method of the axial light sensing type deflection for a hoist brakedisc according to claim 7 or 8, wherein, two or more test points are selected to carry out monitoring simultaneously.
    类似技术:
    公开号 | 公开日 | 专利标题
    CN203644404U|2014-06-11|Device for detecting thrusting resistance of nuclear power reactor internal member control rod guide cylinder component
    WO2016082527A1|2016-06-02|Device for detecting swing of steel wire-rope of vertical shaft cage guide
    US20180229941A1|2018-08-16|Chain fault diagnosis system and method for scraper conveyor
    AU2016401400A1|2018-04-12|A monitoring device and method for dynamic radial deformation and dynamic tension of wire ropes on double broken line multi-layer winding hoists for deep mines
    CN104326360B|2016-09-14|High pedestal jib crane holographic measuring method
    CN104515572A|2015-04-15|Belt weigher based on laser ranging
    US2708316A|1955-05-17|Tubing caliper
    SE1730246A1|2017-09-12|AXIAL LIGHT SENSING TYPE DEFLECTION MONITORING
    CN107144260A|2017-09-08|Cage guide gauge and perpendicularity automatic measuring instrument
    CN203359719U|2013-12-25|Tension detection device of elevator steel wire rope
    CN205506815U|2016-08-24|Nondestructive test equipment for circular rods and circular pipe metal materials
    CN110031394A|2019-07-19|A kind of sliding compound friction testing machine of drop hammer type punching
    CN205743880U|2016-11-30|The imaging system of crevice space occurrence in boring
    CN207007067U|2018-02-13|The gap detection device of screw body
    CN208751528U|2019-04-16|A kind of detection device applied to handware
    CN107505071A|2017-12-22|Moment of friction detection means for ball screw assembly,
    CN209166366U|2019-07-26|A kind of novel top panel separation indicator based on fiber grating sensing technology
    CN207366112U|2018-05-15|A kind of moment of friction detection device for ball screw assembly,
    CN203079262U|2013-07-24|Fiber temperature measurement system of carrier rollers of port belt conveyor
    CN207336559U|2018-05-08|Laser fiber tachogenerator, Boolean value output sensor
    CN109027071A|2018-12-18|A kind of brake for elevator lock rear-cover type disc spring force monitoring sensor
    RU168387U1|2017-02-01|DEVICE FOR MEASURING TENSION, MOVEMENT SPEED, CABLE LENGTH AND READING OF MAGNETIC LABELS
    CN204079294U|2015-01-07|Telescopic suspension hook deviation angle detection device
    CN206804001U|2017-12-26|Cage guide gauge and perpendicularity automatic measuring instrument
    CN107628138A|2018-01-26|A kind of climbing robot for detecting cage guide multi-parameter
    同族专利:
    公开号 | 公开日
    WO2016165246A1|2016-10-20|
    SE542663C2|2020-06-23|
    AU2015391570B2|2018-05-31|
    CN104847817A|2015-08-19|
    AU2015391570A1|2017-04-13|
    CN104847817B|2017-11-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP0255300A3|1986-07-29|1989-04-26|Unisearch Limited|High sensitivity strain detector|
    US5754295A|1996-12-20|1998-05-19|Microe, Inc.|Non-contacting torque sensor and displacement measuring apparatus and method|
    CN2802242Y|2003-10-30|2006-08-02|陈中和|Anti-vibration expansion joint structure|
    CN201037795Y|2007-04-26|2008-03-19|中国矿业大学|Braking performance detecting device for disc type damper brake|
    CN100526833C|2007-04-26|2009-08-12|中国矿业大学|Disc type brake performance detection method and device|
    US9452916B2|2011-04-20|2016-09-27|Zantho Tools Llc|Electrically non-conductive calibrated mechanical winch and method of manufacture|
    CN102303800A|2011-09-26|2012-01-04|烟台金建冶金科技有限公司|Mine hoist disc brake detecting device and detecting method thereof|
    US9150391B2|2012-03-30|2015-10-06|Harnischfeger Technologies, Inc.|Hoist drive for mining machine|
    CN102607432B|2012-04-06|2014-12-03|成都零光量子科技有限公司|Optical fiber displacement sensor, intensity modulation type sensor system formed by same and application method of system|
    CN203127949U|2013-03-22|2013-08-14|湘煤立达矿山装备股份有限公司|Device for monitoring deflection of hoist brake disc|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CN201510181928.9A|CN104847817B|2015-04-16|2015-04-16|A kind of axial Photoinduction type elevation scheme Moving plate beat monitoring device and method|
    [返回顶部]