CN106643438A - Centering method of driving shaft and driven shaft used for installation of rotation equipment - Google Patents

Centering method of driving shaft and driven shaft used for installation of rotation equipment Download PDF

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Publication number
CN106643438A
CN106643438A CN201610875526.3A CN201610875526A CN106643438A CN 106643438 A CN106643438 A CN 106643438A CN 201610875526 A CN201610875526 A CN 201610875526A CN 106643438 A CN106643438 A CN 106643438A
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CN
China
Prior art keywords
dial
shaft
driven shaft
dial framework
adjustment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610875526.3A
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Chinese (zh)
Inventor
陈觉民
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Refine Chemical Equipment Repair Installation Co Ltd
Original Assignee
Shanghai Refine Chemical Equipment Repair Installation Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Refine Chemical Equipment Repair Installation Co Ltd filed Critical Shanghai Refine Chemical Equipment Repair Installation Co Ltd
Priority to CN201610875526.3A priority Critical patent/CN106643438A/en
Publication of CN106643438A publication Critical patent/CN106643438A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/24Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
    • G01B5/25Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
    • G01B5/252Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes

Abstract

The invention relates to a centering method of a driving shaft and a driven shaft used for installation of rotation equipment. The method comprises that a centering device is mounted; racks of dial gauges are mounted on half-couplings respectively, and measuring heads of the indicating gauges abut against the excircle surfaces of the half-couplings respectively; a dial gauge measuring point of the driving shaft is set as an upper zero position, a dial gauge measuring point of the driven shaft is set as a lower zero position, jiggering is carried out according to the same rotation direction, numbers of two dial gauges are recorded after the two shafts are rotated for 90 degrees simultaneously, and the two shafts continue to rotate for 90 degrees; a graph is drawn according to measurement data, a standard is compared to thickness of a pad used for adjustment, the pad of the corresponding thickness is used to adjust the center position of the driving/driven shaft, and the left and right axis of the shaft is adjusted; and after adjustment, the dial gauges are used to measure the coaxiality in up, down, left and right, and whether adjustment reaches an ideal state is detected. In the operation process, left-right adjustment of the driving shaft and the driven shaft can be realized in one time needless of dismounting the racks of the dial gauges, and the efficiency of the centering operation is improved.

Description

A kind of driving shaft installed for rotating machinery and driven shaft centering method
Technical field
The present invention relates to the assembly technology device of mechanized equipment, and in particular to a kind of driving shaft installed for rotating machinery With driven shaft centering method.
Background technology
Driving shaft is also referred to as centering with the coaxiality aligning of driven shaft when rotating machinery is installed, and centering operates the most frequently used survey Amount instrument is exactly dial gauge.The occasion in is being carried out using dial gauge generally using double meter method or single table method.
Single table method is successively to measure the cylindrical same of two shaft ends of driving shaft and driven shaft respectively by using a dial gauge Axle degree, obtains coaxiality deviation, and according to this standard requires the center of adjustment driving shaft or driven shaft.The method is relative to be applied to Two cold conditions axis have inclined occasion (when unit in working order when it is concentric through thermal expansion two axial lines).In petroleum chemical industry In, such as foreign well-known centrifugal compressor manufacturer (Mitsubishi, German graceful turbine) and domestic centrifugal compressor leading firm (Shen Positive air blast group etc.), there are many Large-scale machine sets using single table method centering.
It is by hundred to the conventional method of operating of the single table method for so far, moving the offer of equipment production firm and centering tooling Table skeleton is divided to be fixed on the shaft end of an axle, dial indicator measuring head measures the periphery of another axle shaft end, then switch operation, by percentage Table skeleton moves to the shaft end of another axle, and the periphery of primitive axis shaft end is then measured using dial indicator measuring head.Class need to be measured during measurement Like four points of clock position:12nd, 3,6 and 9 point;First dial gauge arranges zero-bit at 12 points, then driving shaft and driven shaft Synchronous rotary, two axles often rotate percentage meter reading of 90 degree of records, until being rotated further by returning to 12 positions, meter reading is still zero Position, single shaft measures cylindrical end.Then indicator bracket is dismantled, indicator bracket and dial gauge commutation is installed on another axle, hundred Divide table measuring point on the second axis again with same method four location points of measurement.After two axle external diameter axiality numerical value is measured, ability Mapping adjustment (single table method is used mostly graphing method, and less use calculating method, both of which need to measure two cylindrical axialities), Measure again after calculating and adjusting driving shaft and driven shaft center according to measurement data reference standard, i.e., whole centering process needs continuous Dismounting indicator bracket is made the commutation measurement of principal and subordinate's axle and is adjusted to obtain data and make centre deviation.Because conventional method only has single table Show, left and right adjustment cannot accomplish axis (being aligned) change at 2 points in real-time status, so a large-sized unit centering Journey wants switch operation to belong to very normal situation more than five, six times, thus traditional single table method single-point measurement method is whole right Middle process efficiency is low.
The content of the invention
It is an object of the present invention to overcome the deficiencies in the prior art, there is provided a kind of driving shaft installed for rotating machinery With driven shaft centering method, it is applied to single table method centering, traditional single table method centering single-point commutation measurement is made into two point same Survey method, during in, it is not necessary to which midway constantly dismounts dial framework, can be such that driving shaft and driven shaft or so adjustment once arrives Position, so as to reach the effect for improving centering operating efficiency.
For achieving the above object, technical solution of the invention is as follows:
A kind of driving shaft installed for rotating machinery and driven shaft centering method, comprise the steps:
Step 1) centralising device is installed on the driving shaft and driven shaft for needing the rotating machinery in, the centralising device, It is made up of with dial framework is surveyed with dial framework and second is surveyed structure identical first, the first same dial framework and second of surveying is pacified respectively with dial framework is surveyed It is mounted on the shaft end of the driving shaft and driven shaft and position point-symmetrically type, described first with surveying dial framework and second with surveying dial framework Each include centering rack, indicator bracket and dial gauge, the dial gauge is arranged on the indicator bracket, the indicator bracket connection In the front end of the centering rack, the rear end of the centering rack connects on the half a coupler, and two dial indicator measuring heads measure respectively two On individual half a coupler outer round surface.
Step 2) gauge head of the first dial gauge is contacted on the second outer round surface with the half a coupler for surveying dial framework, second Dial gauge is contacted on the first outer round surface with the half a coupler for surveying dial framework, so as to form single table two point with the measurement side for surveying Formula;
Step 3) the dial gauge measuring point on driving shaft is set upper zero-bit, the dial gauge of driven shaft measuring point sets zero-bit, by same One rotation direction jiggering, after two axles have turned 90 degree simultaneously, records respectively the reading of two dial gauges, so continues to rotate 90 degree of two axle, Two dial gauges respectively record four readings of similar clock 12,3,6 and 9 positions;
Step 4) reality that machine adjusts axle (can be driving shaft, or driven shaft) is drawn according to measurement data mapping Axis figure is surveyed, the standard axle line chart of the adjustment axle provided with manufactory is compareed, and obtains the above-below direction to adjust axis In front and back the thickness of leg pad, by the pad plus-minus adjustment of machine support feet respective thickness, makes axis meet the requirements;Adjustment The deviation of the left and right directions actual measurement axis of axle and standard or so axis, the then horizontal branch head screw that placement of foot is supported by before and after is adjusted It is whole, until meeting the requirements.
Step 5) make coaxality measurement up and down with dial gauge again after adjustment, inspection regulates whether to reach preferable shape State, otherwise remakes and repeatedly adjust till the deviation of measured value and standard figures is within the scope of tolerance.
Described centering rack is welded to each other fixation and forms by connecting seat, angle plate and mounting seat, and the mounting seat is flat board Shape component, is connected positioned at the front end of the centering rack and with the indicator bracket, and the connecting seat is disc-shaped component, positioned at institute State the rear end of centering rack and be connected with the half a coupler, described angle plate one end is fixedly connected with the connecting seat, the other end It is fixedly connected with the mounting seat.
The screwed hole for connecting the indicator bracket is provided with described mounting seat.
Described indicator bracket is l-shaped member, includes horizontal part and erection part, is provided with to pacify on the horizontal part The grooved bore of the dial gauge is filled, is offered in the erection part to the long lumbar hole of adjustment position.
The side of described grooved bore is provided with to lock the lock-screw of the dial gauge, and the lock-screw runs through institute State the narrow slot of grooved bore.
The installing hole for installing is provided with described connecting seat, is offered on excircle for the radial direction of the jiggering that exerts a force Hole.
Compared with prior art, the invention has the beneficial effects as follows:
1st, the present invention can be used in single table method centering occasion, change single-point list survey method be two point with survey method to driving shaft and driven Axle carries out centering, improves the only single-point list of traditional single table method and surveys method, eliminates necessary commutation in single table method and measures this One link, indicator bracket need not be again dismounted in measurement process and makees commutation measurement, and successively measurement is formed after two groups of cylindrical numerical value Can be with the actual axis figure of work;But rotated by one week of two axles, two dial gauges are measured and reflect that two shaft ends are cylindrical simultaneously Deviation, centering operating efficiency greatly improved.
2nd, the present invention be symmetrically arranged first with survey dial framework and second with survey dial framework, they when being rotated by 90 ° successively on Under, the position of left and right it is non-interference, will not collide with another dial framework in measurement, realize dial gauge measurement top, it is another Individual dial gauge measurement lower section, a dial gauge measurement left side, another dial gauge measurement right side, non-interfering synchro measure, This is that original single table method centering rack is beyond one's reach.
3rd, in left and right axis trimming, can be visually seen whether left and right axis reaches perfect condition, phase using the present invention When adjusting in real-time status, centering operation is facilitated.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the front view of centering rack.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is the left view of indicator bracket.
Fig. 5 is the top view of Fig. 4.
Specific embodiment
Come the driving shaft to rotating machinery of the present invention and driven shaft with specific embodiment below in conjunction with the accompanying drawings Centralising device is described in further detail, but can not therefore limit the scope of the invention.
Refer to the schematic diagram of Fig. 1 embodiment of the present invention, it is illustrated that centralising device be arranged on and need the rotating machinery of centering Driving shaft 01 and driven shaft 02 on, by structure identical first with survey dial framework 1 and second with survey dial framework 2 constitute.Described first Include centering rack 12, indicator bracket 13 and dial gauge 14 with dial framework 1 is surveyed;The dial gauge 14 is arranged on the indicator bracket 13 On, the indicator bracket 13 is connected to the front end of the centering rack 12, and the rear end of the centering rack 1211 connects the half a coupler 11. Described second is identical with dial framework 1 is surveyed with first with the structure for surveying dial framework 2, including centering rack 22, indicator bracket 23 and dial gauge 24.
Described first is arranged on the shaft end of the driving shaft 01 with dial framework 1 is surveyed, and described second with the survey position of dial framework 2 and institute State first and be point-symmetrically arranged on the shaft end of the driven shaft 02 with dial framework 1 is surveyed;Specifically, described first with survey dial framework 1 is connected on the half a coupler 11 of the shaft end of the driving shaft 01, and the gauge head of first dial gauge 14 contacts at described second On outer round surface with the half a coupler 21 for surveying dial framework 2, the described second same survey dial framework 2 is connected to the shaft end of the driven shaft 02 On half a coupler 21, second dial gauge 24 is contacted on the outer round surface of half a coupler 11, same so as to form single table two point The metering system of survey.
Fig. 2 and Fig. 3 is please referred to, the centering rack 12 is by disc connecting seat 121, angle plate 122 and the phase of mounting seat 123 Mutually it is welded and fixed and integral.The mounting seat 123 is plate-like members, positioned at the front end of the centering rack 12 and with described hundred Divide dial framework 13 to connect, the screwed hole 1231 for connecting the indicator bracket 13 is provided with the mounting seat 123;The connection Seat 121 is disc-shaped component, is connected positioned at the rear end of the centering rack 12 and with the half a coupler 11, is set on the connecting seat The installing hole 1211 for installing is equipped with, stopper is offered on excircle is used for the radial hole 1212 of jiggering force, i.e. barring hole; The angle plate 122 is rigidity preferably triangle, is not likely to produce amount of deflection, and its one end is fixedly connected with the connecting seat 121, separately One end is fixedly connected with the mounting seat 123, and the middle part millable of the angle plate 122 is empty, so that dial framework is made lightly.
Fig. 4 and Fig. 5 is please referred to, described indicator bracket 13 is l-shaped member, includes horizontal part and erection part;Institute The grooved bore 132 for being provided with to install the mounting clip sleeve of the dial gauge 14 on horizontal part is stated, the side of the grooved bore 132 is provided with To the lock-screw 134 (see Fig. 5) of the dial gauge 14 that locks, the lock-screw 134 is narrow through the grooved bore 132 Groove;Long lumbar hole 131 is offered in the erection part, is easy to adjust the position of indicator bracket 13 up and down.
The specific operation process of a kind of driving shaft of rotating machinery of the present invention and the centralising device of driven shaft is as follows, sees Fig. 1:
1) first is arranged on the shaft end of driving shaft 01 with survey dial framework 1, second surveys table with the survey position of dial framework 2 is same with first Frame 1 is point-symmetrically on the shaft end of driven shaft 02;
2) gauge head of dial gauge 14 is contacted on the second outer round surface with the half a coupler 21 for surveying dial framework 2, dial gauge 24 contact on the first outer round surface with the half a coupler 11 for surveying dial framework 1, so as to form single table two point with the metering system surveyed;
3) measuring point of dial gauge 24 on driving shaft 01 is set upper zero-bit, the dial gauge 14 of the measuring point of driven shaft 02 sets zero-bit, By same rotation direction (e.g., peak is moved towards east side) jiggering, after two axles have turned 90 degree simultaneously, two dial gauges of record respectively Reading, so continues to rotate 90 degree of two axle, and last two dial gauge respectively records four readings of similar clock 12,3,6 and 9 positions Number;
4) mapped according to measurement data, and the thickness of pad of the acquisition to adjust, adjusted with the pad of respective thickness The center of driving shaft 01 or driven shaft 02;It is specific as follows:
First, opening away from making according to the manufactory reference axis for providing and the standard value and two cylindrical survey table points for adjusting axle Standard adjusts axle axis figure.And survey support feet before and after tester point and adjustment axle and open away from and mark in same ratio.In graph paper Upper mapping main points:
, in left side, adjustment axis is on right side for a reference axis.
B up can up and down adjust normal line in position, and lower position makees left and right adjustment normal line.
C mapping principles take same ratio mapping actually to open to extend away from left and right.Use dial gauge measured up and down and deviation mark 1/100 millimeter of another scale of unit shown by standard.Principle should facilitate, see figure clearly as criterion to map.
D reference axis are gone up, negative value is under;Adjustment axle negative value upper, on the occasion of under.
Such as axle on the basis of left side when e or so maps, then the benchmark for coming should be conversed with dial gauge far point reading as zero-bit Axle is mapped with the near point numerical value of adjustment axle.To justify right scale as far point during mapping.
With dial gauge standard value or measured value except 2 mappings when f maps.
When g is measured, foot bolt is supported to be in tightening state.
Then, two point with survey method zero-bit is set on the dial gauge measuring point on reference axis, divide into by the dial gauge for adjusting axle measuring point Zero-bit.By same rotation direction (peak such as disk is moved towards east side) jiggering.After two axles have turned 90 degree simultaneously, two are recorded respectively Meter reading.Two tables respectively record four readings.Main points:
The algebraical sum of the upper and lower numerical value of a is consistent with the algebraical sum of left and right numerical value.As difference needs to find reason in more than 0.02mm Remeasure.
It is upper that b is converted into upper point as four numerical value conversion regimes of zero-bit four tabular values of table that point under adjustment axle sets zero-bit Lower numerical value exchange, it is positive and negative good contrary;Left and right numerical value exchange, opposite sign.
C above-below directions are mapped, and according to survey table point position two points are marked, and then make extended line according to shaft length ratio, this It is exactly an adjustment axis.Then adjustment axis is compared with stdaxis in the difference value for supporting placement of foot, calculating needs plus-minus Spacer thickness.
Adjustment axis is such as above stdaxis in two supporting point positions, i.e., to deduct pad, otherwise subtracts pad loosely Pin trip bolt is adjusted.
D or so mappings are set to zero-bit the right reading that measured value is justified, and (i.e. left and right is while add and subtract same numerical value, such as reference axis Measured value right is 0.16mm, then left and right Ge Jia -0.16mm, and when right side becomes zero, left side numerical value is filled in by reading after calculating, adjustment Axle is calculated in the same manner.
E draws two points of survey table point and makees extended line according to the same drawing method of axis is surveyed up and down, then compares again and left and right Stdaxis support the difference of placement of foot to adjust before and after.When measuring reference axis is in your left hand position, that is, tune Bearing line support feet or so jackscrew is adjusted.
F is placed on right position two point when left and right axis trimming is made with two dial gauges of the method for survey, directly sees that two tables are read Whether number reaches perfect condition, and two point can clearly reflect the physical location change of adjustment axis with survey, so a left side can be made Right misalignment of axe is once adjusted in place.Even and if single-spot way is then placed on left or right position measurement table, due to only reflecting axle Some change of line, it is impossible to know the virtual condition of axis, so tradition list table method or so adjustment will form once correct suitable It is difficult.
G is after upper lower gasket is adjusted, then right position is adjusted with branch head screw, and when left and right, axis is transferred to ideal position Afterwards, then the trip bolt of before and after pin strong point is fastened.
Make dial gauge coaxality measurement up and down again, inspection regulates whether to reach perfect condition, due to theoretical meter The difference with virtual condition is calculated, adjustment person's experience whether difference has repeatedly adjustment sometimes.Until upper and lower and left and right actual measurement number Till value and standard figures deviation are within the scope of tolerance.
5) coaxality measurement after adjusting again with dial gauge work up and down, inspection regulates whether to reach perfect condition, Otherwise adjust again till the deviation of measured value and standard figures is within the scope of tolerance.
Our experiments show that, the present invention socializes to while reflect two cylindrical deviations, being not required to dismounting by the one of two axles Dial framework step measurement.In addition in left and right axis trimming, can be visually seen whether left and right axis reaches perfect condition, equivalent to Real-time status is adjusted, and centering efficiency is greatly improved.The dial framework of the design, it is interference-free when measuring at the same time.And dial framework will have Certain rigidity, will not occur to produce amount of deflection phenomenon during measurement, and measured value is accurate.
Above are only presently preferred embodiments of the present invention, not for limit the present invention practical range, Fan Yibenfa The equivalence changes that bright content is made and modification, all should be the claimed scope of the present patent application.

Claims (1)

1. it is a kind of for rotating machinery install driving shaft and driven shaft centering method, it is characterised in that the method include it is as follows Step:
Step 1) centralising device is installed on the driving shaft and driven shaft for needing the rotating machinery in, the device, by structure phase With first with surveying dial framework and second with surveying dial framework composition, this first with survey dial framework and second with survey dial framework be separately mounted to it is described On the shaft end of driving shaft and driven shaft and position point-symmetrically type, described first each includes with dial framework and second is surveyed with dial framework is surveyed Centering rack, indicator bracket and dial gauge, the dial gauge is arranged on the indicator bracket, and the indicator bracket is connected to described right The front end of middle frame, the rear end of the centering rack connects the half a coupler, and described first is connected to the driving shaft with dial framework is surveyed On the half a coupler of shaft end, described second is connected on the half a coupler of the shaft end of the driven shaft with dial framework is surveyed, and described first The same dial indicator measuring head for surveying dial framework is contacted on the second outer round surface with the half a coupler for surveying dial framework, and described second with survey dial framework Dial indicator measuring head contact at first with survey dial framework half a coupler outer round surface on;
Step 2) gauge head of the first dial gauge (14) is contacted on the second outer round surface with the half a coupler (21) for surveying dial framework, The gauge head of the second dial gauge (24) is contacted on the first outer round surface with the half a coupler (11) for surveying dial framework, so as to form single table Two point is with the metering system surveyed;Step 3) the first dial gauge (14) measuring point on driving shaft (02) is set upper zero-bit, driven shaft (11) second dial gauge (24) of measuring point sets zero-bit, by same rotation direction jiggering, after two axles have turned 90 degree simultaneously, two is recorded respectively The reading of individual dial gauge, so continues to rotate 90 degree of two axle, and two dial gauges respectively record the four of similar clock 12,3,6 and 9 positions Individual reading;
Step 4) the actual measurement axis figure that machine adjusts axle is drawn according to measurement data mapping, the mark of the adjustment axle provided with manufactory Fiducial axis line chart is compareed, and the thickness to adjust the pad of rear leg forwardly above and below of axis is obtained, by machine support feet phase The pad for answering thickness adds and subtracts adjustment, makes axis meet the requirements;The left and right directions actual measurement axis of adjustment axle and standard or so axis Deviation, then support the horizontal branch head screw adjustment of placement of foot, until meeting the requirements by before and after
Step 5) make coaxality measurement up and down with dial gauge again after adjustment, inspection regulates whether to reach perfect condition, Otherwise remake and repeatedly adjust till the deviation of measured value and standard figures is within the scope of tolerance.
CN201610875526.3A 2016-09-30 2016-09-30 Centering method of driving shaft and driven shaft used for installation of rotation equipment Pending CN106643438A (en)

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Application Number Priority Date Filing Date Title
CN201610875526.3A CN106643438A (en) 2016-09-30 2016-09-30 Centering method of driving shaft and driven shaft used for installation of rotation equipment

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Application Number Priority Date Filing Date Title
CN201610875526.3A CN106643438A (en) 2016-09-30 2016-09-30 Centering method of driving shaft and driven shaft used for installation of rotation equipment

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CN109990690A (en) * 2019-04-11 2019-07-09 中船澄西船舶修造有限公司 A kind of measurement tooling for driving shaft and driven shaft assignment
CN110553570A (en) * 2019-08-26 2019-12-10 山鹰国际控股股份公司 method for four-point radial correction of coupler centering through double-percentile meter
CN111238437A (en) * 2020-03-10 2020-06-05 中烜航空科技(上海)有限公司 Automatic assembly tracking and monitoring equipment for large-scale hole shaft

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109990690A (en) * 2019-04-11 2019-07-09 中船澄西船舶修造有限公司 A kind of measurement tooling for driving shaft and driven shaft assignment
CN110553570A (en) * 2019-08-26 2019-12-10 山鹰国际控股股份公司 method for four-point radial correction of coupler centering through double-percentile meter
CN111238437A (en) * 2020-03-10 2020-06-05 中烜航空科技(上海)有限公司 Automatic assembly tracking and monitoring equipment for large-scale hole shaft

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Application publication date: 20170510