CN102466563B - The method of operating of link holding capacity pick-up unit - Google Patents
The method of operating of link holding capacity pick-up unit Download PDFInfo
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- CN102466563B CN102466563B CN201010534230.8A CN201010534230A CN102466563B CN 102466563 B CN102466563 B CN 102466563B CN 201010534230 A CN201010534230 A CN 201010534230A CN 102466563 B CN102466563 B CN 102466563B
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- 238000000034 method Methods 0.000 title claims description 24
- 230000002159 abnormal effect Effects 0.000 claims description 19
- 230000000694 effects Effects 0.000 claims description 11
- 230000002950 deficient Effects 0.000 claims description 7
- 238000005259 measurement Methods 0.000 claims description 3
- 230000035882 stress Effects 0.000 description 7
- 238000001514 detection method Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The invention discloses a kind of link holding capacity pick-up unit, comprising: beam, the two ends of link are fixed on beam; The force bearing plate be arranged in parallel with beam; At least one pressure-strain sheet, pressure-strain sheet is fixed on link; First linkage unit, one end of the first linkage unit is fixed at the bottom of the ring of link, and the other end of the first linkage unit is fixed on described force bearing plate; Second linkage unit, the two ends of the second linkage unit are separately fixed on beam and force bearing plate; Force application element, one end of force application element contacts with beam, and between the first linkage unit and the second linkage unit; Pressure transducer, is placed on the other end of force application element, and contacts with force bearing plate; And the display unit to be connected with described pressure transducer.Detecting element connection is each other simple, and use principle is simple.
Description
Technical field
The present invention relates to the charger detecting holding capacity, particularly relate to a kind of link holding capacity pick-up unit and method of operating thereof.
Background technology
The block components of safeguard protection utensil when high-altitude metal link may be used for work high above the ground; metal link can bear the effect of power to a certain degree usually when operation; Long-Time Service can make metal link occur when concrete operation to come off with mounting article; or self-deformation is bending and cause security incident, therefore changes link in time and seem particularly important.
At present for using the link of a period of time to adopt the mode of periodic replacement to solve potential safety hazard, and the structural strength of each link non-equal, therefore aging degree (i.e. coefficient of depreciation) is not identical, therefore batch replacement, material is caused to waste greatly, in addition, link is carried out removing and reinstall the skilled labour intensity that all can cost a lot of money and very long working time.Change measure for batch blindly, in the urgent need to the measure of the substandard link of a kind of effective detection, change targetedly and solve the problem of potential safety hazard.
Summary of the invention
The object of the present invention is to provide a kind of link holding capacity pick-up unit and method of operating thereof, to solve the problem that existing link carries out without detection method blindly changeing in batches.
For solving the problem, the present invention proposes a kind of link holding capacity pick-up unit, for detecting stress suffered by link, described pick-up unit comprises: beam, and the two ends of link are fixed on described beam; The force bearing plate be arranged in parallel with described beam; At least one pressure-strain sheet, described pressure-strain sheet is fixed on described link; First linkage unit, one end of described first linkage unit is fixed at the bottom of the ring of link, and the other end of described first linkage unit is fixed on described force bearing plate; Second linkage unit, the two ends of described second linkage unit are separately fixed on described beam and force bearing plate; Force application element, one end of described force application element contacts with described beam, and between described first linkage unit and described second linkage unit; Pressure transducer, is placed on the other end of described force application element, and contacts with described force bearing plate; And the display unit to be connected with described pressure transducer.
Optionally, in described link holding capacity pick-up unit, described first linkage unit to bear load capacity stronger than described link.
Optionally, in described link holding capacity pick-up unit, described second linkage unit to bear load capacity stronger than described link.
Optionally, in described link holding capacity pick-up unit, described pressure-strain sheet is fixed on position on described link near described beam.
Optionally, in described link holding capacity pick-up unit, described beam is beams of concrete.
Optionally, in described link holding capacity pick-up unit, described force bearing plate is steel plate.
Optionally, in described link holding capacity pick-up unit, described force application element is lifting jack.
Optionally, in described link holding capacity pick-up unit, described display unit is double screen weight display.
Optionally, in described link holding capacity pick-up unit, described first linkage unit is chain, and described second linkage unit is chain.
The present invention also provides a kind of method of operating of link holding capacity pick-up unit, comprising: force application element applies an original pressure to link; Under original pressure effect, if abnormal occurrence appears in described link, then identify that described link is defective, detect and terminate; If there is not abnormal occurrence in described link, force application element applies a preset pressure to link, wherein, preset pressure value is greater than described initial pressure value, the payload values of described link that described display unit shows described preset pressure value and obtained by the measurement of pressure-strain sheet; Under preset pressure effect, if abnormal occurrence appears in described link, then identify that described link is defective, detect and terminate; If abnormal occurrence does not appear in described link, the payload values of more described preset pressure value and link, if the difference of preset pressure value and payload values is less than or equal to normal value, then identifies that described link is qualified; If the difference of preset pressure value and payload values is greater than normal value, then link holding capacity pick-up unit is in abnomal condition, checks described link holding capacity pick-up unit.
Optionally, in the method for operating of described link holding capacity pick-up unit, described abnormal occurrence comprises described link and fixed position place to be had break-off or described link to have to be out of shape or described link is bending or combinations thereof.
Optionally, in the method for operating of described link holding capacity pick-up unit, described preset pressure value is 2.4-2.6 times of the actual bearing load of described link.
Optionally, in the method for operating of described link holding capacity pick-up unit, the time that force application element applies preset pressure to link is 15-17 minute.
The detecting element comprised in link holding capacity pick-up unit provided by the invention is with low cost, and detecting element connection is each other simple, and use principle is simple.Present invention also offers a kind of method of operating of link holding capacity pick-up unit, simple force application element is utilized indirectly to apply preset pressure to detected object link, the payload values obtaining link is detected by the pressure-strain sheet that link is installed, compare with preset pressure value, if the difference of payload values and preset pressure value is less than or equal to normal value, then link is qualified, in this testing process, simple to operate, accuracy rate is high, and apply the original pressure less than preset pressure by early stage to link, even if ensure that link, under low-force, abnormal conditions occurs, also security incident can not be there is, thus enhance the detection safety of link.
Accompanying drawing explanation
The link holding capacity structure of the detecting device schematic diagram that Fig. 1 provides for the embodiment of the present invention;
The steps flow chart schematic diagram of the method for operating of the link holding capacity pick-up unit that Fig. 2 provides for the embodiment of the present invention.
Embodiment
The link holding capacity pick-up unit proposed the present invention below in conjunction with the drawings and specific embodiments and method of operating thereof are described in further detail.According to the following describes and claims, advantages and features of the invention will be clearer.It should be noted that, accompanying drawing all adopts the form that simplifies very much and all uses non-ratio accurately, only for object that is convenient, the aid illustration embodiment of the present invention lucidly.
Core concept of the present invention is, provide a kind of link holding capacity pick-up unit, detecting element is with low cost, and detecting element connection is each other simple, and use principle is simple.Present invention also offers a kind of method of operating of link holding capacity pick-up unit, in testing process, simple to operate, accuracy rate is high, and apply the original pressure less than preset pressure by early stage to link, even if ensure that link, under low-force, abnormal conditions occurs, also can not there is security incident, thus enhance the detection safety of link.
Please refer to Fig. 1, its link holding capacity structure of the detecting device schematic diagram provided for the embodiment of the present invention, in conjunction with this Fig. 1, this link holding capacity pick-up unit 10 comprises: beam 11, and the two ends of link 12 are fixed on described beam 11; The force bearing plate 13 be arranged in parallel with described beam 11; At least one pressure-strain sheet 14, described pressure-strain sheet 14 is fixed on described link 12; First linkage unit 15, one end of described first linkage unit 15 is fixed at the bottom of the ring of link 12, and the other end of described first linkage unit 15 is fixed on described force bearing plate 13; Second linkage unit 16, the two ends of described second linkage unit 16 are separately fixed on described beam 11 and described force bearing plate 13; Force application element 17, one end of described force application element 17 contacts with described beam 11, and between described first linkage unit 15 and described second linkage unit 16; Pressure transducer 18, is placed on the other end of described force application element 17, and contacts with described force bearing plate 13; The display unit (not shown) be connected with described pressure transducer 18.
Preferably, described first linkage unit 15 or the second linkage unit 16 bear load capacity than described link the last 12, avoid in force process, due to described first linkage unit 15 or the second linkage unit 16 load capacity low and rupture, cause link holding capacity pick-up unit 10 not carry out smoothly.In the present embodiment, described first linkage unit 15 and the second linkage unit 16 are chain, and wherein the setting of the second linkage unit 16 is to ensure whole link holding capacity pick-up unit 10 stress balance.
Preferably, described pressure-strain sheet 14 is fixed on position on described link 12 near described beam 11, because the power acted on link 12 is maximum in the position near described beam 11, be therefore fixed on by pressure-strain sheet 14 on the link 12 of beam 11, the result of detection is the most effective.In the present embodiment, respectively arrange a pressure-strain sheet 14 near link 12 two ends, described pressure-strain sheet 14 can test link 12 stress suffered in loading procedure.
In the present embodiment, described beam 11 is beams of concrete, and the two ends of link 12 are fixed in beams of concrete, ensure that link 12 is connected with beam 11 securely to a certain extent.Described force bearing plate 13 is steel plate, and will be understood by those skilled in the art that, the material of force bearing plate 13 is not only limited as steel, can be the material possessing identical or close hardness.
In the present embodiment, described force application element 17 is lifting jack, and lifting jack applies power in pressure transducer 18, finally by force bearing plate 13 and the first linkage unit 15 indirectly-acting on link 12.Described display unit is double screen weight display, and show two data about power, one is the power that lifting jack puts on pressure transducer 18 simultaneously, and another is that pressure-strain sheet 14 tests link 12 stress suffered in lifting jack loading procedure.
The steps flow chart schematic diagram of the method for operating of the link holding capacity pick-up unit that Fig. 2 provides for the embodiment of the present invention.As shown in Figure 2, the step that the method for operating of described link holding capacity pick-up unit 10 comprises is:
S21, force application element apply an original pressure to link;
S22, under original pressure effect, if abnormal occurrence appears in described link, then identify that described link is defective, detect and terminate;
If there is not abnormal occurrence in the described link of S23, force application element applies a preset pressure to link, wherein, preset pressure value is greater than described initial pressure value, the payload values of described link that described display unit shows described preset pressure value and obtained by the measurement of pressure-strain sheet;
S24, under preset pressure effect, if abnormal occurrence appears in described link, then identify that described link is defective, detect and terminate;
If abnormal occurrence does not appear in the described link of S25, then the payload values of more described preset pressure value and link, if the difference of preset pressure value and payload values is less than or equal to normal value, then identify that described link is qualified; If the difference of preset pressure value and payload values is greater than normal value, then link holding capacity pick-up unit is in abnomal condition, checks described link holding capacity pick-up unit.
With reference to above-mentioned steps and composition graphs 1, the method for operating of the link holding capacity pick-up unit of the embodiment of the present invention is described in more detail.
In step S21, force application element 17 applies an original pressure to pressure transducer 18, because pressure transducer 18 contacts with force bearing plate 13, therefore force bearing plate 13 is also subject to the effect of this original pressure, further, one end of described first linkage unit 15 is fixed at the bottom of the ring of link 12, and the other end of described first linkage unit 15 is fixed on described force bearing plate 13, therefore the original pressure that force bearing plate 13 is subject to acts on link 12 by the first linkage unit 15, makes link 12 be subject to certain stress.
In step S22, under original pressure effect, if there is abnormal occurrence in link 12, such as, described link 12 is with there is break-off at fixed position place, described link 12 has distortion, described link is bending, then identify that described link 12 is defective, detect and terminate, the link 12 carrying out detecting is replaced.
In step S23, the setting of preset pressure value searches its stress reference value allowing to use according to the material of link 12, consider the real work time limit of link 12 again, according to L226-1998 " Hydraulic and Hydro-Power Engineering metal construction Rejection standard ", reduction is carried out to its permissible stress, obtains after getting corresponding reduction coefficient.Preset pressure value is generally the 2.4-2.6 of the actual bearing load of described link 12 doubly, in the present embodiment, get 2.4 times that described preset pressure value is the actual bearing load of described link 12, and, the preset pressure applied continues for some time, for 15-17 minute, in the present embodiment, getting the time applying preset pressure is 15 minutes.
In step S24, because preset pressure value is larger than initial pressure value, therefore there is abnormal occurrence than easier under the effect of original pressure in link 12 under the effect of preset pressure.
In step S25, when link holding capacity pick-up unit 10 is in abnomal condition, pressure-strain sheet 14 Rig up error be arranged on link 12 may be there is, cause the payload values of the link 12 recorded to there is deviation, make the difference of payload values and preset pressure value increase further, thus exceed normal value; Also likely occur that the position that force application element 17 is installed is unfavorable for that force application element 17 accurately exerts a force, cause the preset pressure value generation deviation applied by force application element 17, make the difference of preset pressure value and payload values increase further, thus exceeded normal value.
In sum, the invention provides a kind of link holding capacity pick-up unit, the detecting element of described link holding capacity pick-up unit is with low cost, and detecting element connection is each other simple, and use principle is simple.Present invention also offers a kind of method of operating of link holding capacity pick-up unit, simple force application element 17 is utilized indirectly to apply preset pressure to detected object link 12, the payload values obtaining link 12 is detected by the pressure-strain sheet 14 that link 12 is installed, compare with preset pressure value, if the difference of payload values and preset pressure value is less than or equal to normal value, then link 12 is qualified, in this testing process, simple to operate, accuracy rate is high, and apply the original pressure less than preset pressure by giving link 12 early stage, even if ensure that link 12, under low-force, abnormal conditions occurs, also security incident can not be there is, thus enhance the detection safety of link 12.
Obviously, those skilled in the art can carry out various change and modification to invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (1)
1. a method of operating for link holding capacity pick-up unit, is applied on link holding capacity pick-up unit, it is characterized in that, described link holding capacity pick-up unit comprises:
Beam, the two ends of link are fixed on described beam;
The force bearing plate be arranged in parallel with described beam;
At least one pressure-strain sheet, described pressure-strain sheet is fixed on described link, and described pressure-strain sheet is fixed on position on described link near described beam;
First linkage unit, one end of described first linkage unit is fixed at the bottom of the ring of link, and the other end of described first linkage unit is fixed on described force bearing plate;
Second linkage unit, the two ends of described second linkage unit are separately fixed on described beam and force bearing plate;
Force application element, one end of described force application element contacts with described beam, and between described first linkage unit and described second linkage unit;
Pressure transducer, is placed on the other end of described force application element, and contacts with described force bearing plate; And
The display unit be connected with described pressure transducer;
The method of operating of described link holding capacity pick-up unit comprises:
Force application element applies an original pressure to link;
Under original pressure effect, if abnormal occurrence appears in described link, then identify that described link is defective, detect and terminate;
If there is not abnormal occurrence in described link, force application element applies a preset pressure to link, wherein, preset pressure value is greater than described initial pressure value, the payload values of described link that described display unit shows described preset pressure value and obtained by the measurement of pressure-strain sheet;
Under preset pressure effect, if abnormal occurrence appears in described link, then identify that described link is defective, detect and terminate;
If abnormal occurrence does not appear in described link, the payload values of more described preset pressure value and link, if the difference of preset pressure value and payload values is less than or equal to normal value, then identifies that described link is qualified; If the difference of preset pressure value and payload values is greater than normal value, then link holding capacity pick-up unit is in abnomal condition, checks described link holding capacity pick-up unit;
Wherein, described abnormal occurrence comprises described link and fixed position place to be had break-off or described link to have to be out of shape or described link bends, described preset pressure value is 2.4-2.6 times of the actual bearing load of described link, and the time that force application element applies preset pressure to link is 15-17 minute.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010534230.8A CN102466563B (en) | 2010-11-05 | 2010-11-05 | The method of operating of link holding capacity pick-up unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010534230.8A CN102466563B (en) | 2010-11-05 | 2010-11-05 | The method of operating of link holding capacity pick-up unit |
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| CN102466563A CN102466563A (en) | 2012-05-23 |
| CN102466563B true CN102466563B (en) | 2015-11-25 |
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| CN104198171B (en) * | 2014-09-02 | 2016-10-19 | 南车二七车辆有限公司 | A kind of rolling stock top operation coupler composition assay device and using method thereof |
| CN108304016B (en) * | 2018-02-28 | 2021-01-22 | 京东方科技集团股份有限公司 | Aging protection device, control method thereof and aging protection system |
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2010
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| JPH0498136A (en) * | 1990-08-16 | 1992-03-30 | Yamato Scale Co Ltd | Load cell |
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