CN110439558A - A kind of cantilever excavator pick state of wear detection system and method - Google Patents

A kind of cantilever excavator pick state of wear detection system and method Download PDF

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Publication number
CN110439558A
CN110439558A CN201910580884.5A CN201910580884A CN110439558A CN 110439558 A CN110439558 A CN 110439558A CN 201910580884 A CN201910580884 A CN 201910580884A CN 110439558 A CN110439558 A CN 110439558A
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China
Prior art keywords
pick
cutting
state
cantilever excavator
wear
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CN201910580884.5A
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Chinese (zh)
Inventor
孙延飞
应明
朱朋飞
刘延钊
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Railway Engineering Equipment Group Tunnel Equipment Manufacturing Co Ltd
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Railway Engineering Equipment Group Tunnel Equipment Manufacturing Co Ltd
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Priority to CN201910580884.5A priority Critical patent/CN110439558A/en
Publication of CN110439558A publication Critical patent/CN110439558A/en
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C35/00Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/24Remote control specially adapted for machines for slitting or completely freeing the mineral

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Component Parts Of Construction Machinery (AREA)

Abstract

The present invention relates to cantilever excavator field, specifically a kind of cantilever excavator pick state of wear detection system and method, including main controller, vibrating sensor, current sensor, infrared thermal imager and display output units structure;The vibrating sensor and current sensor are fixedly installed on the cutting arm of cantilever excavator, and the cutting motor of the current sensor and cantilever excavator is electrically connected;The infrared thermal imager is mounted on the cutting arm upper section of cantilever excavator;The display output units structure and main controller are electrically connected, and are exported in the form of figure and/or sound to operator for will test result;The detection system and method can find pick eccentric wear in time, avoid adjacent pick abrasion aggravation failure, pick degree of wear information can be exported, improve drivage efficiency, and the acquisition of pick abrasion detection characteristic is carried out using the practical cutting operation in construction site, the authenticity of characteristic is improved, guarantees detection anticipation effect.

Description

A kind of cantilever excavator pick state of wear detection system and method
Technical field
The present invention relates to cantilever excavator field, specifically a kind of cantilever excavator pick state of wear detection system and Method.
Background technique
A kind of heading equipment of the boom-type roadheader as high efficient and flexible, has been widely used for the excavation in tunnel, tunnel With the exploitation of ore.Pick is the consumables in development machine driving, and manipulator need to pay close attention to the mill of pick in real time in tunneling process Damage state can reduce working efficiency when there is part pick eccentric wear and accelerate the loss of other picks, can seriously damage pick Seat and cutterhead ontology.There is such case and need the prolonged REPAIR WELDING in scene, influences Homes Using TV.Existing scheme It is used in the pick patent of the infrared temperature-sensitive feedback wear-out failure of CN109113740A- and temperature measuring equipment is installed on each pick and is adopted Temperature signal is uploaded with wireless method, this scheme is with small vibration in cutting soft rock and has under the premise of clinging pick there is no soil Have certain practical, and pick needs to increase cost payout by special manufacturing process.Also patent proposition pacifies in pick Electric resistance sensor is filled, as the abrasion resistence signal of pick also changes therewith, pick is judged by the signal of detection variation State of wear, but be all fundamentally all there is above-mentioned disadvantage by wired or wirelessly for the acquisition of wear signal End can not implement at this stage, therefore, above-mentioned technical problem and defect how be overcome to become what emphasis needed to solve Problem.
Summary of the invention
Goal of the invention of the invention is to overcome defect described in background technique, to realize a kind of cantilever excavator Pick state of wear detection system and method, the system and method can find pick eccentric wear in time, and adjacent pick is avoided to wear Aggravation improves drivage efficiency, and the acquisition of pick abrasion detection characteristic is carried out using the practical cutting operation in construction site, The authenticity of characteristic is improved, guarantees detection anticipation effect.
For achieving the above object, the technical scheme is that a kind of cantilever excavator pick state of wear detects System, including main controller, vibrating sensor, current sensor, infrared thermal imager and display output units structure;The vibrating sensing Device and current sensor are fixedly installed on the cutting arm of cantilever excavator, and the vibrating sensor exists for recording cutting arm X, the cutting motor of the vibration data on tri- coordinate directions of Y, Z, the current sensor and cantilever excavator is electrically connected; The infrared thermal imager is mounted on the cutting arm upper section of cantilever excavator, and the alignment lens cutterhead of infrared thermal imager; The display output units structure and main controller are electrically connected, and are exported in the form of figure and/or sound to behaviour for will test result Work person.
Further, the display output units structure is set in the operation cockpit of cantilever excavator, the display output Mechanism includes display and phonetic alarm, is shown for pick state of wear and audio alert.
The cantilever excavator pick state of wear detection method based on said detecting system that the present invention also provides a kind of, including Following steps
A. operation is equipped with the normal cutting of cantilever excavator of completely new pick, completes a cutting working cycles;
B. main controller acquires and stores the specific data under normal condition, obtains different operations under normal pick cutting state The real time on-line monitoring data of operating condition, analysis handle under normal pick cutting state different operating conditions and specific data parameter it Between correlation, form normal pick working status parameter characteristic set;
C. operation cantilever excavator continues cutting operation, until pick is in moderate abrasion and state is seriously worn;
D. main controller acquires and stores the specific data under state of wear, obtains moderate abrasion and is seriously worn under state not With the real time on-line monitoring data of operating condition, analyzes the abrasion of processing moderate and different operating conditions and spy is seriously worn under state Determine the correlation between data parameters, forms abrasion pick working status parameter characteristic set;
E. the cutterhead of cantilever excavator is changed to completely new pick, the normal cutting work of operation cantilever excavator;
F. main controller acquires and monitoring feature data in real time in cutting course, and in real time with normal pick working condition, mill It damages pick working status parameter characteristic set to compare, to assess pick state of wear;
G. pick state of wear is carried out according to the state of wear display and phonetic alarm of assessment to show and phonetic warning;
When cantilever excavator cutting geological condition changes or replace construction site, then repeatedly a~g step carries out feature The foundation and assessment of data acquisition system.
Further, a cutting working cycles are completed in step a refers to manipulator according to the cutting operating method of specification It treats cutting section and carries out primary reciprocal cutting operation, by taking cutterhead backsight rotates clockwise as an example: rock is on the right side of cutterhead When, cutting from up to down, backhaul sky knife.When rock is on the left of cutterhead, bottom-up cutting, backhaul sky knife.Rock is in cutting When head top, cutting from left to right, backhaul sky knife.When rock is below cutterhead, right-to-left cutting, backhaul sky knife.
Further, main controller acquisition stores the specific data under normal or state of wear in step b and d, described specific Data include: in the continuous-stable cutting course of left and right or more, and cutting motor electric current is IaWhen cutting arm vibrating sensor output Data and the cutterhead temperature pattern data of infrared camera acquisition;Vibrating sensor exports on tri- coordinate directions of X, Y, Z Vibration data;Cutting motor electric current IaValue are as follows: 0.8 × Irate≤Ia≤1.1×Irate, IrateFor the specified electricity of cutting motor Stream, value range can utmostly embody the status data of cantilever excavator in normal working conditions, the volume lower than 0.8 times Constant current, equipment belong to light condition, and greater than 1.1 times rated current belong to overload, and underloading and overload cannot be objective Reflect characteristic.
Further, the vibration data includes the vibration acceleration and vibration amplitude of vibrating sensor acquisition, selection vibration Dynamic acceleration information carries out root mean square treated characteristic of the root-mean-square value as vibration data;Vibration acceleration data are equal Root calculation formula are as follows:
XrmsFor vibration acceleration data root mean square,For the square value of i-th of data
Further, when cantilever excavator cutterhead replaces with completely new pick, main controller marks replacing construction, and is output to On display, the prompt of pick inspection or replacement is carried out for manipulator.
Further, signified moderate wears and is seriously worn refer to be zequin at the top of pick alloy head in step c, It is mild wear that abrasion loss, which is less than 10mm, is worn between 10mm~20mm for moderate, is to be seriously worn greater than 20mm, practice of construction In, it is noted that replacement pick, severe answer hard stop to replace pick when wearing when moderate is worn.
Cantilever excavator pick state of wear detection system and method for the invention the utility model has the advantages that
1. cantilever excavator pick state of wear detection system of the invention and method avoid and install resistance in cutterhead Sensor or temperature sensor detect the drawbacks of abrasion is brought by wired or wireless form, can find that in time pick is inclined Mill avoids adjacent pick abrasion aggravation, improves the Homes Using TV of equipment, guarantee tunneling construction efficiency.
2. cantilever excavator pick state of wear detection system of the invention and method are grasped using the practical cutting in construction site The acquisition and foundation for making progress pick abrasion detection characteristic, improve the authenticity of characteristic, ensure that detection anticipation effect Fruit.
3. cantilever excavator pick state of wear detection system of the invention and method select cutting electricity when steady cutting The Rule of judgment that electromechanical flow valuve is acquired as characteristic can exclude complex geological condition and operation randomness to data sample Interference, to keep the reliability of data assessment higher.
Detailed description of the invention
Fig. 1 is the schematic diagram of cantilever excavator pick state of wear detection system of the invention;
Fig. 2 is the control flow chart of cantilever excavator pick state of wear detection method of the invention.
Specific embodiment
Cantilever excavator pick state of wear of the invention is detected with reference to the accompanying drawing and by specific embodiment System and method does more detailed description.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", "top", The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with Specific orientation construction and operation, therefore be not considered as limiting the invention.
Referring to Fig. 1, the cantilever excavator pick state of wear detection system of the present embodiment, including main controller, vibrating sensing Device, current sensor, infrared thermal imager and display output units structure;The vibrating sensor and current sensor are fixedly installed In on the cutting arm of cantilever excavator, the vibrating sensor is for recording vibration of the cutting arm on tri- coordinate directions of X, Y, Z The cutting motor of dynamic data, the current sensor and cantilever excavator is electrically connected;The infrared thermal imager is mounted on outstanding The cutting arm upper section of arm development machine, and the alignment lens cutterhead of infrared thermal imager;The display output units structure and main controller It being electrically connected, being exported in the form of figure and/or sound to operator for will test result.
At the scene under condition of construction, the display output units structure is set in the operation cockpit of cantilever excavator, described Display output units structure includes display and phonetic alarm, is shown for pick state of wear and audio alert.
Referring to fig. 2, the present embodiment also provides a kind of cantilever excavator pick state of wear inspection based on said detecting system Survey method, includes the following steps
A. operation is equipped with the normal cutting of cantilever excavator of completely new pick, completes a cutting working cycles;
B. main controller acquires and stores the specific data under normal condition, obtains different operations under normal pick cutting state The real time on-line monitoring data of operating condition, analysis handle under normal pick cutting state different operating conditions and specific data parameter it Between correlation, form normal pick working status parameter characteristic set;
C. operation cantilever excavator continues cutting operation, until pick is in moderate abrasion and state is seriously worn;
D. main controller acquires and stores the specific data under state of wear, obtains moderate abrasion and is seriously worn under state not With the real time on-line monitoring data of operating condition, analyzes the abrasion of processing moderate and different operating conditions and spy is seriously worn under state Determine the correlation between data parameters, forms abrasion pick working status parameter characteristic set;
E. the cutterhead of cantilever excavator is changed to completely new pick, the normal cutting work of operation cantilever excavator;
F. main controller acquires and monitoring feature data in real time in cutting course, and in real time with normal pick working condition, mill It damages pick working status parameter characteristic set to compare, to assess pick state of wear;
G. pick state of wear is carried out according to the state of wear display and phonetic alarm of assessment to show and phonetic warning;
When cantilever excavator cutting geological condition changes or replace construction site, then repeatedly a~g step carries out feature The foundation and assessment of data acquisition system.
In the present embodiment, a cutting working cycles are completed in step a refers to that manipulator operates according to the cutting of specification Method treats cutting section and carries out primary reciprocal cutting operation, and by taking cutterhead backsight rotates clockwise as an example: rock is in cutterhead When right side, cutting from up to down, backhaul sky knife.When rock is on the left of cutterhead, bottom-up cutting, backhaul sky knife.Rock exists When above cutterhead, cutting from left to right, backhaul sky knife.When rock is below cutterhead, right-to-left cutting, backhaul sky knife.
In the present embodiment, main controller acquisition stores the specific data under normal or state of wear in step b and d, described Specific data includes: up and down in continuous-stable cutting course, cutting motor electric current is I for left and rightaWhen cutting arm vibrating sensor Output data and the cutterhead temperature pattern data of infrared camera acquisition;Vibrating sensor exports tri- coordinate directions of X, Y, Z On vibration data;Cutting motor electric current IaValue are as follows: 0.8 × Irate≤Ia≤1.1×Irate, IrateFor the volume of cutting motor Constant current, value range can utmostly embody the status data of cantilever excavator in normal working conditions, be lower than 0.8 times Rated current, equipment belongs to light condition, and greater than 1.1 times rated current belong to overload, and underloading and overload cannot Objectively respond characteristic.
In the present embodiment, the vibration data includes the vibration acceleration and vibration amplitude of vibrating sensor acquisition, choosing It selects vibration acceleration data and carries out root mean square treated characteristic of the root-mean-square value as vibration data;Vibration acceleration number According to root mean square calculation formula are as follows:
XrmsFor vibration acceleration data root mean square,For the square value of i-th of data
Processing analysis is carried out to infrared temperature image: extracting mean temperature T when cutterhead workaveAnd maximum temperature Tmax, when cutterhead cutting, under normal circumstances, since pick is rotation when cutting works, the pick temperature for participating in cutting is big Body is identical, tends to mean temperature Tave;With the aggravation of abrasion, pick alloy head part becomes larger to the Cutting Drag of rock, pick Mean temperature TaveIt increases with it, therefore judges that the state of wear of pick is to meet reality by the variation tendency of mean temperature Operating condition;(cause since pick and pick box are unable to move relatively) when some pick for participating in cutting generates eccentric wear, this section Tooth temperature can be higher than other pick temperature, and be greater than normal pick cutting when maximum temperature Tmax, judge that cutting is inclined with this Mill, and prompt the pick of replacement eccentric wear.It should be noted that above-mentioned temperature data is I also in cutting motor electric currentaItem It is obtained under part.
In the present embodiment, when cantilever excavator cutterhead replaces with completely new pick, main controller marks replacing construction, and defeated Out on display, the prompt of pick inspection or replacement is carried out for manipulator.
In the present embodiment, signified moderate wears and is seriously worn refer to be to calculate at the top of pick alloy head in step c Starting point, it is mild wear that abrasion loss, which is less than 10mm, is worn between 10mm~20mm for moderate, is to be seriously worn greater than 20mm, real In the construction of border, it is noted that replacement pick, severe answer hard stop to replace pick when wearing when moderate is worn.
Referring to fig. 2, be explained as follows in Fig. 2 process 1: main controller acquisition data include vibration acceleration data, it is infrared Temperature data ultimately forms following specific features data: vibrating sensor X, Y, Z axis vibration acceleration root mean square under normal condition Value Xrms, Yrms,Zrms;Mean temperature Tave, maximum temperature Tmax;X under moderate state of wearrms1, Yrms1,Zrms1, Tmax1, Tave1; X under state is seriously wornrms2, Yrms2,Zrms2, Tmax2, Tave2
It is explained as follows in above-mentioned process 2: in IaUnder the conditions of, real-time data collection is handled, when meeting following item Part a period of time, Tave1>Tave、Tave2>Tave, audio alert and display prompts pick partial friction;When meeting one of following condition When, Xrms1>Xrms、Yrms1>Yrms、Zrms1>Zrms、Tmax1>Tmax, audio alert and display prompts pick moderate wear-out failure;When Meet following condition for the moment, Xrms2>Xrms、Yrms2>Yrms、Zrms2>Zrms、Tmax2>Tmax, audio alert and display prompts are cut Failure is seriously worn in tooth.
Unless otherwise defined, the technical term or scientific term used herein should be in fields of the present invention and has The ordinary meaning that the personage of general technical ability is understood.As used " first ", " the in present specification and claims Two " and similar word be not offered as any sequence, quantity or importance, and be used only to distinguish different composition portions Point.Equally, such as "one" or " one " similar word is used also not necessarily to indicate that quantity limits." comprising " or "comprising" etc. Similar word mean to occur element or object before the word cover the element for appearing in the word presented hereinafter or object and It is equivalent, and is not excluded for other elements or object.The similar word such as " connection " or " connected " not now due to physics or The connection of person's machinery, but may include electrical connection, it is either direct or indirect."upper", "lower", " left side ", " right side " etc. is only used for indicating relative positional relationship, after the absolute position for being described object changes, then the relative positional relationship May correspondingly it change.
It is described in detail exemplary embodiment of the invention above in reference to preferred embodiment, however art technology Personnel it will be appreciated that under the premise of without departing substantially from theory of the present invention, above-mentioned specific embodiment can be made a variety of modifications and Remodeling, and multiple combinations can be carried out to each technical characteristic proposed by the present invention, structure, and without departing from protection model of the invention It encloses.

Claims (8)

1. a kind of cantilever excavator pick state of wear detection system, it is characterised in that: including main controller, vibrating sensor, electricity Flow sensor, infrared thermal imager and display output units structure;The vibrating sensor and current sensor are fixedly installed on outstanding On the cutting arm of arm development machine, the vibrating sensor is for recording vibration number of the cutting arm on tri- coordinate directions of X, Y, Z According to the cutting motor of the current sensor and cantilever excavator is electrically connected;The infrared thermal imager is mounted on cantilever pick Into the cutting arm upper section of machine, and the alignment lens cutterhead of infrared thermal imager;The display output units structure and main controller are electrical Connection, is exported in the form of figure and/or sound to operator for will test result.
2. cantilever excavator pick state of wear detection system according to claim 1, it is characterised in that: the display is defeated Mechanism is set in the operation cockpit of cantilever excavator out, and the display output units structure includes display and phonetic alarm, It is shown for pick state of wear and audio alert.
3. a kind of cantilever excavator pick state of wear detection method based on detection system of any of claims 1 or 2, special Sign is: including the following steps
A. operation is equipped with the normal cutting of cantilever excavator of completely new pick, completes a cutting working cycles;
B. main controller acquires and stores the specific data under normal condition, obtains different operating conditions under normal pick cutting state Real time on-line monitoring data, analysis handles under normal pick cutting state between different operating conditions and specific data parameter Correlation forms normal pick working status parameter characteristic set;
C. operation cantilever excavator continues cutting operation, until pick is in moderate abrasion and state is seriously worn;
D. main controller acquires and stores the specific data under state of wear, obtains moderate abrasion and different fortune are seriously worn under state Different operating conditions and certain number under state are worn and are seriously worn to the real time on-line monitoring data of row operating condition, analysis processing moderate According to the correlation between parameter, abrasion pick working status parameter characteristic set is formed;
E. the cutterhead of cantilever excavator is changed to completely new pick, the normal cutting work of operation cantilever excavator;
F. main controller acquires simultaneously monitoring feature data in real time in cutting course, and cuts in real time with normal pick working condition, abrasion Tooth working status parameter characteristic set compares, to assess pick state of wear;
G. pick state of wear is carried out according to the state of wear display and phonetic alarm of assessment to show and phonetic warning;
When cantilever excavator cutting geological condition changes or replace construction site, then repeatedly a~g step carries out characteristic The foundation and assessment of set.
4. cantilever excavator pick state of wear detection method according to claim 3, it is characterised in that: complete in step a Refer to that manipulator treats cutting section according to the cutting operating method of specification and carries out primary reciprocal section at a cutting working cycles Cut operation.
5. cantilever excavator pick state of wear detection method according to claim 3, it is characterised in that: in step b and d Main controller acquisition stores the specific data under normal or state of wear, and the specific data includes: continuous-stable is cut up and down for left and right During cutting, cutting motor electric current is IaWhen cutting arm vibrating sensor output data and infrared camera acquisition cutterhead Temperature pattern data;Vibrating sensor exports the vibration data on tri- coordinate directions of X, Y, Z;Cutting motor electric current IaValue Are as follows: 0.8 × Irate≤Ia≤1.1×Irate, IrateFor the rated current of cutting motor.
6. cantilever excavator pick state of wear detection method according to claim 5, it is characterised in that: the vibration number According to the vibration acceleration and vibration amplitude for including vibrating sensor acquisition, after selecting vibration acceleration data to carry out root mean square processing Characteristic of the root-mean-square value as vibration data;Vibration acceleration data root mean square calculation formula are as follows:
XrmsFor vibration acceleration data root mean square,For the square value of i-th of data
7. cantilever excavator pick state of wear detection method according to claim 3, it is characterised in that: cantilever excavator When cutterhead replaces with completely new pick, main controller marks replacing construction, and is output on display, carries out pick for manipulator The prompt for checking or replacing.
8. cantilever excavator pick state of wear detection method according to claim 3, it is characterised in that: institute in step c Referring to moderate abrasion and be seriously worn and refers to be zequin at the top of pick alloy head, it is mild wear that abrasion loss, which is less than 10mm, It is worn between 10mm~20mm for moderate, is to be seriously worn greater than 20mm.
CN201910580884.5A 2019-06-29 2019-06-29 A kind of cantilever excavator pick state of wear detection system and method Pending CN110439558A (en)

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CN111322082A (en) * 2020-03-09 2020-06-23 西南交通大学 TBM hob state monitoring and fault diagnosis method and system
CN111502658A (en) * 2020-04-03 2020-08-07 黑龙江科技大学 Intelligent monitoring device for pick state of coal mining machine based on linear Hall multi-probe
CN114004539A (en) * 2021-11-19 2022-02-01 四川启睿克科技有限公司 Method for evaluating abrasion loss in each direction based on vibration data
CN114086954A (en) * 2021-10-29 2022-02-25 中国煤炭科工集团太原研究院有限公司 Automatic control method and device of tunneling and anchoring all-in-one machine, electronic equipment and storage medium
CN114183158A (en) * 2021-11-15 2022-03-15 中铁工程装备集团隧道设备制造有限公司 Motor protection control system and method for cantilever excavator

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CN211287679U (en) * 2019-06-29 2020-08-18 中铁工程装备集团隧道设备制造有限公司 Cantilever entry driving machine pick wearing and tearing state detecting system

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Publication number Priority date Publication date Assignee Title
CN111322082A (en) * 2020-03-09 2020-06-23 西南交通大学 TBM hob state monitoring and fault diagnosis method and system
CN111502658A (en) * 2020-04-03 2020-08-07 黑龙江科技大学 Intelligent monitoring device for pick state of coal mining machine based on linear Hall multi-probe
CN114086954A (en) * 2021-10-29 2022-02-25 中国煤炭科工集团太原研究院有限公司 Automatic control method and device of tunneling and anchoring all-in-one machine, electronic equipment and storage medium
CN114183158A (en) * 2021-11-15 2022-03-15 中铁工程装备集团隧道设备制造有限公司 Motor protection control system and method for cantilever excavator
CN114183158B (en) * 2021-11-15 2023-09-01 中铁工程装备集团隧道设备制造有限公司 Cantilever development machine motor protection control system and method
CN114004539A (en) * 2021-11-19 2022-02-01 四川启睿克科技有限公司 Method for evaluating abrasion loss in each direction based on vibration data
CN114004539B (en) * 2021-11-19 2024-05-14 四川启睿克科技有限公司 Method for evaluating abrasion loss in all directions based on vibration data

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