CN108469320A - A kind of hydraulic steel gate of integrated hoisting capacity detection function - Google Patents
A kind of hydraulic steel gate of integrated hoisting capacity detection function Download PDFInfo
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- CN108469320A CN108469320A CN201810604312.1A CN201810604312A CN108469320A CN 108469320 A CN108469320 A CN 108469320A CN 201810604312 A CN201810604312 A CN 201810604312A CN 108469320 A CN108469320 A CN 108469320A
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- steel
- hoisting capacity
- slag sand
- lifting lug
- hydraulic
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 36
- 239000010959 steel Substances 0.000 title claims abstract description 36
- 238000001514 detection method Methods 0.000 title claims abstract description 18
- 239000004576 sand Substances 0.000 claims abstract description 38
- 239000002893 slag Substances 0.000 claims abstract description 38
- 238000005259 measurement Methods 0.000 claims abstract description 27
- 238000012546 transfer Methods 0.000 claims abstract description 7
- 239000011888 foil Substances 0.000 claims description 12
- 230000002459 sustained effect Effects 0.000 claims description 10
- 210000001015 abdomen Anatomy 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 238000000034 method Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 230000002045 lasting effect Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000002592 echocardiography Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000005483 Hooke's law Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
- G01L1/225—Measuring circuits therefor
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/26—Vertical-lift gates
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
A kind of hydraulic steel gate of integrated hoisting capacity detection function, it is related to hydraulic engineering technical field, lifting lug including steel-slag sand, equipped with lifting hole(eyelet) and two groups of webs arranged symmetrically, sensing device is also set up above steel-slag sand, the sensing device includes stress strain gauge, electrical measurement transmitting module, electrical measurement armouring and transfer wire, the present invention integrates the direct, convenient of hoisting capacity on hydraulic steel gate and detects function and information is observed and predicted, change existing in-service steel-slag sand hoisting capacity and can only measure indirectly, the insufficient present situation of accuracy, may advantageously facilitate engineering safety reliability service.The present invention, which solves, detects the in-service of hoisting capacity in steel-slag sand operation so that when steel-slag sand dispatches from the factory, just have hoisting capacity detects technology, is conducive to be promoted the use of in hydraulic and hydroelectric engineering field, more preferable to ensure hydraulic steel gate equipment safety reliability service.
Description
Technical field
The present invention relates to hydraulic engineering technical fields, and in particular to the keying control technology field of hydraulic steel gate.
Background technology
With the construction and development of hydraulic engineering, the hydraulic steel gate as hydraulic and hydroelectric engineering key equipment is also towards more
Sample, enlarged direction are developed, and reinforcing its safety monitoring becomes the important directions of engineering management.
Hydraulic steel gate be hydraulic and hydroelectric engineering realize safety cross flood, rational allocation water resource key equipment.Wherein, it opens
Close one of the key index that power is hydraulic steel gate safe operation, the safe operation of direct relation hydraulic structure.
There is a variety of operating conditions in hydraulic steel gate opening-closing process, the case where hoisting capacity, is more complicated when operation, meets
It is also bigger to failure and ill effect, jeopardize the normal operation of hydraulic steel gate, there are hidden to the operation of whole water conservancy system
Suffer from.Thus, on-line checking hoisting capacity and the in time dynamic data of acquisition hoisting capacity, can to hydraulic steel gate operation character offer
Depending on the presentation of information of change, the state of steel-slag sand operation is effectively detected.
Active service hydraulic steel gate has a single function, acts on simply, and do not have hoisting capacity detects ability.Need also separately it increase
Detection device is obtained by the stand under load indirect detection of the components such as reel, steel wire rope, transmission shaft, information accuracy and engineering economy
The needs of modernized water conservancy development are not adapted to.
Invention content
Purpose of the present invention is to propose a kind of hydraulic steel gate, it is integrated with the function of monitoring hoisting capacity size simultaneously.
The present invention includes steel-slag sand, the lifting lug equipped with lifting hole(eyelet) and two groups of webs arranged symmetrically, the lower end connection of the lifting lug
In the upper end of steel-slag sand, it is characterised in that also set up sensing device above steel-slag sand, the sensing device includes ess-strain
Sensor, electrical measurement transmitting module, electrical measurement armouring and transfer wire, the stress strain gauge are compounded in the web table of lifting lug
Face, the signal input part of the signal output end connection electrical measurement transmitting module of stress strain gauge, the signal of electrical measurement transmitting module
Output end connects transfer wire;The electrical measurement armouring is arranged in the periphery of stress strain gauge and electrical measurement transmitting module.
The stress strain gauge of the present invention obtains the stand under load deformation microstrain of shackle plate using Hui Shi bridge measurement methods
Information;Electrical measurement transmitting module accurately detects stress strain gauge stand under load deformation microstrain information, and is detected by hooke theorem
Steel-slag sand hoisting capacity.Electrical measurement armouring is then used to protect the components such as stress strain gauge and electrical measurement transmitting module, avoids by nearly water
Or endangered caused by the bad working environments such as underwater, it is ensured that reliably working under the conditions of engineering is in-service.
The present invention makes that hydraulic steel gate has online hoisting capacity detectability and information is observed and predicted, and adapts to modernized water conservancy development
Target trend, to reinforce the soft technique supporting method of hydraulic steel gate security information.The present invention collects on hydraulic steel gate
Direct, convenient at hoisting capacity detects function and information is observed and predicted, and changing existing in-service steel-slag sand hoisting capacity can only measure, is accurate indirectly
The insufficient present situation of true property, may advantageously facilitate engineering safety reliability service.Structure of the invention technical concept is novel, echoes modernization water
The requirement of profit is solved and is detected to the in-service of hoisting capacity in steel-slag sand operation so that when steel-slag sand dispatches from the factory, just has hoisting capacity
Technology is detected, is conducive to be promoted the use of in hydraulic and hydroelectric engineering field, it is more preferable to ensure that hydraulic steel gate equipment safety
By operation.
The present invention is applied in hydraulic engineering equipment, is detected by integrating the direct, convenient of hoisting capacity on hydraulic steel gate
Function and information are observed and predicted, change existing in-service steel-slag sand hoisting capacity can only measure indirectly, the insufficient present situation of accuracy, be conducive to promote
Into engineering safety reliability service;Detection work of the Guan Yang departments to hydraulic steel gate hoisting capacity is also avoided simultaneously, is water conservancy project steel
Gate equipment safe operation offer effectively ensures.By Wheatstone bridge measuring principle, by ess-strain signal autoreduction
The dynamic data of hoisting capacity in steel-slag sand operation is obtained, the instantaneity analysis for opening and closing force data is provided for Guan Yang departments in time,
Have great importance to the safe operation of hydraulic steel gate.
Invention advantageous effect:Active service hydraulic steel gate has a single function, acts on simply for a long time, does not have detecing for hoisting capacity
Know ability, mainly separately increases detection device and obtained by the stand under load indirect detection of the components such as reel, steel wire rope, transmission shaft, letter
Breath accuracy and engineering economy do not adapt to the needs of modernized water conservancy development.
Compared with the hydraulic steel gate of active service, the present invention integrates the detection function of hoisting capacity by foundation, greatly enhances
The dynamic detection of hoisting capacity detects the timely acquisition with information in hydraulic steel gate operational process.The present invention uses Hui Shi electric bridges
Measuring principle effectively detects steel-slag sand hoisting capacity, preferably can provide visualization for the dynamic change of hoisting capacity
Display runs existing hidden danger so as to avoid steel-slag sand.By establishing hoisting capacity detection function, water conservancy project steel lock is effectively detected
The hoisting capacity of door, had not only alleviated the work of administrative staff in this way, but also can achieve the effect that ensure steel-slag sand.Structure of the invention system
Make simple for process, technical concept is novel, echoes the requirement of modernized water conservancy, is conducive to carry out promoting in hydraulic engineering industry to make
With to improve the effective guarantee of hydraulic steel gate equipment safety.
Further, in order to obtain more objective lifting lug deformation data, lifting lug of the present invention is two, sensing device
It it is four groups, each stress strain gauge of two groups of sensing devices is separately positioned on two groups of webs of a lifting lug, another two groups of biographies
Each stress strain gauge of induction device is separately positioned on two groups of webs of another lifting lug, and four groups of sensing devices is each
Stress strain gauge is arranged in below the lifting hole(eyelet) of corresponding lifting lug, on sustained height placed in the middle.
More into preferably, the stress strain gauge of each group of sensing device of the invention by least two pieces vertical foil gauges with
At least two pieces of transverse strain piece compositions, each vertical foil gauge are arranged on sustained height, and the vertical center of lifting hole(eyelet) of opposite lifting lug
Axial symmetry is arranged;Each transverse strain piece is arranged on sustained height, and the vertical arrangement substantially symmetrical about its central axis of the lifting hole(eyelet) of opposite lifting lug, with
Multiple spot series connection obtains the relevant deformation amount of being slightly variable of abdomen stand under load of lifting lug.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the present invention.
Fig. 2 is the portions I enlarged drawing in Fig. 1.
Fig. 3 is the connection relationship diagram of foil gauge and lifting lug in one group of sensing device.
Fig. 4 is the directly measurement actual strain schematic diagram of the present invention.
Fig. 5 is the schematic diagram of the Hui Shi bridge measurement principles of the present invention.
Fig. 6 is that the signal of sensing device transmits schematic diagram.
Specific implementation mode
One, structure explanation:
As shown in Figure 1, 2, 3, the present invention is equipped with steel-slag sand 1, two lifting lugs 2 with lifting hole(eyelet) 2-1, the lower end point of two lifting lugs 2
Upper end not with steel-slag sand 1 is welded and fixed, and between two lifting lugs 2, places connecting pin 3 by lifting hole(eyelet) 2-1, every lifting lug 2 is set
There are opposite and symmetrical two groups of web 2-2.
Two groups of sensing devices A and B are respectively set on two groups of web 2-2 of a lifting lug 2 wherein, 2 are hung in another
Two groups of sensing devices C and D are respectively set on two groups of web 2-2.
As shown in Figure 2,6, each group of sensing device is equipped with stress strain gauge 4, electrical measurement transmitting module 5, electrical measurement armouring 6
With transfer wire 7, the signal input part of the signal output end connection electrical measurement transmitting module 5 of stress strain gauge 4, electrical measurement pick-up
The signal output end of module 5 connects transfer wire 7, and 6 clad type of electrical measurement armouring is arranged in stress strain gauge 4 and electrical measurement pick-up
The periphery of module 5, to water proof and dust proof.
As shown in figure 3, the stress strain gauge 4 of each group of sensing device is by four pieces of vertical foil gauge 4-1 and four pieces of cross
It is formed to foil gauge 4-2, each vertical foil gauge 4-1 is arranged on the sustained height of web 2-2, and the lifting hole(eyelet) 2-1 of opposite lifting lug 2
Vertical arrangement substantially symmetrical about its central axis, each transverse strain piece 4-2 are arranged on the sustained height of web 2-2, and the lifting hole(eyelet) of opposite lifting lug 2
The vertical arrangements substantially symmetrical about its central axis of 2-1.
Each vertical foil gauge of each stress strain gauge of four groups of sensing devices is arranged in the lifting hole(eyelet) of corresponding lifting lug
On the sustained height of lower section web, each transverse strain piece is arranged in the sustained height of web below the lifting hole(eyelet) of corresponding lifting lug
On.
Two, it is illustrated in conjunction with Fig. 4,5 pairs of operation principles of the invention:
1, bridge measurement principle:
Foil gauge generally uses Wheatstone bridge to carry out circuit measuring.Wheatstone bridge converts the resistance that foil gauge strain generates
For differential voltage ,+Exc and-Exc are terminal loads driving voltage ,+VOUTWith-VOUTFor the terminal differential electrical directly proportional to strain
Pressure, formula(1.1)Output voltage Vo is given, it is the function of driving voltage and all resistance of electric bridge.When Vo+ and Vo- is equal to Ve
1/2 when, electric bridge output it is very sensitive to the change of resistance, this be Wheatstone bridge carry out strain measurement basic principle.
(1.1)
In formula:Ve is bridge excitation voltage, (++ Exc)-(- Exc);R1~R2 is bridge resistor.
Formula (1.1) is more complicated, and conventionally used four resistance uses same nominal value R.Consider that resistance has 4,2
Or the case where 1 resistance variations increment, is simplified, and is that dR is indicated with the increments of change of resistance value R to be measured, it is assumed that dR is positive value,
If actual resistance reduces, indicated with-dR.
)4 resistance variations increments
The resistance value of R2 and R4 increases with increase to be measured in four bridge resistors, and the resistance value of R1 and R3 then accordingly reduce,
Such case is common in the detection of full-bridge four stress gauges.Formula(1.2)Give output voltage (Vo) and resistance relative variation
(dR/R) in a linear relationship.
(1.2)
2)2 resistance variations increments
For in half-bridge wheatstone bridge circuits, there is the same side (R1 and R2 or R3 and R4) two resistance in four bridge resistors
Change in resistance spy's increment, and opposite (dR and-dR), another two panels are compensation resistance.Such case is common in using half-bridge two and answers
Become meter detection, position voltage during another two resistance only provides occurs as compensating plate.Formula(1.3)Give output voltage (Vo) with
Resistance relative variation (dR/R) is still in a linear relationship, and sensitivity is the half of four resistance variations increment electric bridges.
(1.3)
3)1 resistance variations increment
There is a resistance R1 or R2 or R3 or R4 to have change in resistance increment (dR and-dR) in electric bridge.Formula(1.4)Provide output electricity
The relationship for pressing (Vo) and resistance relative variation (dR/R), due to occurring dR in denominator, it is necessary to which its is non-by software calibration
Linear convergent rate, common cost or wiring occasion more prior than signal amplitude.
(1.4)
Slight deformation occurs when rigid structure is by outer force effect, is located under 1V driving voltages, by formula(1.2)It is known that electric bridge is full
Width output 2mV, which is equivalent to resistance value, is expired amplitude variationization 0.2%.
The force of opening and closing that shackle plate is presented, according to Hooke's law, the force of opening and closing that shackle plate is presented is obtained by formula 1.5.
(1.5)
In formula, Fn indicates that gate stand under load hoisting capacity, S are the areas of Fn effects,It is that elastomer original is grown,It is the elongation after stress
Amount, proportionality coefficient E are known as elasticity modulus, also referred to as Young's modulus, due to strainFor cardinar number, therefore elasticity modulus and answer
PowerUnit having the same, elasticity modulus are the physical quantitys for describing material itself, from the above equation, we can see that, stress is big and answers
Become smaller, then elasticity modulus is larger;Conversely, elasticity modulus is smaller.
2, in hydraulic steel gate operational process of the present invention hoisting capacity feature application:
1)It is when steel-slag sand is not by water pressure, process operation of the steel-slag sand from closing to opening is primary, steel-slag sand can be measured at this time
The size of hoisting capacity measures the dead weight of door, is checked before can also be used as flood, learns whether steel-slag sand operation conditions is good;Work as flood
It after phase, when water remains static, is acted on by uplift force at gate lifting eye, steel-slag sand hoisting capacity when can measure this state
Size.
2)It when steel-slag sand remains static, is acted on by upper launching stress, at this point, main in steel-slag sand operational process
If lasting force, by integrating the hydraulic steel gate of hoisting capacity detection function, the size of lasting force at this time can be measured.
3)When steel-slag sand, which sluices, to be run, acted on by sluicing torrent, gate is fixed on certain aperture, can obtain
The lasting force of steel-slag sand at this time.
4)When steel-slag sand needs operation, gate starts operation from static, and the power of steel-slag sand being subject to is Qi Menli at this time,
The Qi Menli in operational process can be detected through the invention.
5)When steel-slag sand standard-sized sheet or shutdown operation, it can obtain in this operational process and close power.
Through the invention, make hydraulic steel gate in opening and closing operational process, either the closing of steel-slag sand or steel-slag sand
Unlatching operation or the various operating modes of steel-slag sand operation, hoisting capacity can be detected accurately, to ensure water conservancy project steel lock
The safe operation of door.
3, Force sensor is opened and closed:
1)Open and close the dynamometry principle of Force sensor
(1)The dynamometry principle of hoisting capacity foil gauge
If metallic resistance silk, the resistivity of material is ρ, original length L, transversal if its cross section is the circle of a diameter of D
Area is A, its resistance value R is shown in formula when initial(2.1)It is shown.
(2.1)
Under external force, resistance wire deforms, if resistance wire is axially elongated, lateral dimension can accordingly reduce, transversal
The radius reduction in face causes cross-sectional area to change.The cross section original area of conducting wire is, it is with respect to variation.Wherein u is the Poisson's ratio of Metal wire material;Strain, it is plain conductor length
Opposite variation, see formula(2.2)It is shown.
(2.2)
Resistance change dR/R caused by being extended in resistance wire, is shown in formula(2.3)It is shown.In formula(2.3)In formula, previous item be by
Resistivity changes caused after metal deformation of filament;Latter is to be changed to be drawn by geometric dimension after metal deformation of filament
It rises.It is recognised that metal material is in certain range of strain, the relative resistance change of resistance wire and the axial length of silk
Opposite variation is directly proportional, sees formula(2.4)It is shown.After sensitive grid strain ga(u)ge is adhered to component surface, member stress and
When deformation, the strain of characterization component can be changed by test resistance.
In formula:Ks is the sensitivity coefficient of single metal wire, is had with ingredient, process and the condition of heat treatment of conductor material
It closes, and and stress(It stretches or compresses)It is unrelated.
(2)Dynamometry principle-hooke theorem of hoisting capacity
(2.5)
Fn indicates that internal force, S are the areas of Fn effects in formula,It is that elastomer original is grown,It is the elongation after stress, ratio system
Number E is known as elasticity modulus, also referred to as Young's modulus, due to strainFor cardinar number, therefore elasticity modulus and stress
Unit having the same, elasticity modulus are the physical quantitys for describing material itself, from the above equation, we can see that, stress is big and should become smaller, then bullet
Property modulus is larger;Conversely, elasticity modulus is smaller.
The survey calculation formula of hoisting capacity, is shown in formula(2.6)It is shown,
(2.6)
In formula:F is hoisting capacity, and k is calibration coefficient,For the size of stress.
2)The information for opening and closing Force sensor transmits communications protocol:
Modbus communication standards are an industry communications, are passed through by the programmable controller with intelligent terminal and computer
Public line or locally specified connection form, and are mainly used in acquisition and the process monitoring of various data.In the present invention, lead to
News agreement is mainly successfully transmitted to the related data of hoisting capacity detection in the place of data receiver, and establishing criteria requirement is write
The data communication protocol of the present invention.
Communications protocol coded format, sees below shown in formula:
In formula:ID is monitoring address;XX is function code:03 be query-relevant data function code/05 is the related operand of input
According to;LL is the correspondence register number that sensor is read or inputted;YYYY is the corresponding specific data of register number.
Claims (3)
1. a kind of hydraulic steel gate of integrated hoisting capacity detection function, including steel-slag sand, it is equipped with lifting hole(eyelet) and is symmetrical arranged two groups of abdomens
The lower end of the lifting lug of plate, the lifting lug is connected to the upper end of steel-slag sand, it is characterised in that sensing dress is also set up above steel-slag sand
It sets, the sensing device includes stress strain gauge, electrical measurement transmitting module, electrical measurement armouring and transfer wire, and the stress is answered
Become the web surface that sensor is compounded in lifting lug, the signal of the signal output end connection electrical measurement transmitting module of stress strain gauge
The signal output end of input terminal, electrical measurement transmitting module connects transfer wire;The electrical measurement armouring is arranged in stress strain gauge
With the periphery of electrical measurement transmitting module.
2. integrating the hydraulic steel gate of hoisting capacity detection function according to claim 1, it is characterised in that the lifting lug is two
Only, sensing device is four groups, and each stress strain gauge of two groups of sensing devices is separately positioned on two groups of webs of a lifting lug
On, each stress strain gauge of another two groups of sensing devices is separately positioned on two groups of webs of another lifting lug, and four groups
Each stress strain gauge of sensing device is arranged in below the lifting hole(eyelet) of corresponding lifting lug, on sustained height placed in the middle.
3. integrating the hydraulic steel gate of hoisting capacity detection function according to claim 2, it is characterised in that each group of sensing dress
The stress strain gauge set is by least two pieces vertical foil gauges and at least two pieces of transverse strain pieces form, each vertical foil gauge cloth
It sets on sustained height, and the vertical arrangement substantially symmetrical about its central axis of the lifting hole(eyelet) of opposite lifting lug;Each transverse strain piece is arranged in sustained height
On, and the vertical central shaft of lifting hole(eyelet) of opposite lifting lug is arranged symmetrically between two parties.
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Cited By (3)
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---|---|---|---|---|
CN110082079A (en) * | 2019-04-10 | 2019-08-02 | 河海大学 | Standing wire hydraulic steel gate hoisting capacity condition monitoring device |
CN110082015A (en) * | 2019-04-10 | 2019-08-02 | 河海大学 | A kind of anchoring dynamic search hydraulic steel gate hoisting capacity dynamic monitor and monitoring method |
CN110095269A (en) * | 2019-04-10 | 2019-08-06 | 河海大学 | Duplex dynamic search hydraulic steel gate hoisting capacity condition monitoring device |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110082079A (en) * | 2019-04-10 | 2019-08-02 | 河海大学 | Standing wire hydraulic steel gate hoisting capacity condition monitoring device |
CN110082015A (en) * | 2019-04-10 | 2019-08-02 | 河海大学 | A kind of anchoring dynamic search hydraulic steel gate hoisting capacity dynamic monitor and monitoring method |
CN110095269A (en) * | 2019-04-10 | 2019-08-06 | 河海大学 | Duplex dynamic search hydraulic steel gate hoisting capacity condition monitoring device |
CN110095269B (en) * | 2019-04-10 | 2021-02-23 | 河海大学 | Double-linkage cable hydraulic steel gate opening and closing force performance monitoring device |
CN110082015B (en) * | 2019-04-10 | 2021-04-16 | 河海大学 | Dynamic monitoring method for opening and closing force of hydraulic steel gate of anchoring movable cable |
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Application publication date: 20180831 |