CN110068412A - A kind of experimental rig and method measuring the quiet frictional resistance of gate - Google Patents
A kind of experimental rig and method measuring the quiet frictional resistance of gate Download PDFInfo
- Publication number
- CN110068412A CN110068412A CN201910396766.9A CN201910396766A CN110068412A CN 110068412 A CN110068412 A CN 110068412A CN 201910396766 A CN201910396766 A CN 201910396766A CN 110068412 A CN110068412 A CN 110068412A
- Authority
- CN
- China
- Prior art keywords
- gate
- frictional resistance
- force
- downstream
- steel plate
- 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
Links
- 238000000034 method Methods 0.000 title abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 57
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 39
- 239000010959 steel Substances 0.000 claims abstract description 39
- 230000002045 lasting effect Effects 0.000 claims abstract description 21
- 230000000694 effects Effects 0.000 claims abstract description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 34
- 238000005259 measurement Methods 0.000 claims description 11
- 238000010998 test method Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims 1
- 230000007812 deficiency Effects 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 6
- 238000011160 research Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 201000004569 Blindness Diseases 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 102100023170 Nuclear receptor subfamily 1 group D member 1 Human genes 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Abstract
A kind of experimental rig and method measuring the quiet frictional resistance of gate, the invention belongs to hydraulic and hydroelectric engineering field of steel structure, pass through two triaxial force sensors arranged in the downstream side of gate panel, and the tension sensor arranged on gate lifting eye, under different apertures, gate vertical force is measured using two triaxial force sensors, measures lasting force using tension sensor, the two subtracts each other the frictional resistance that can be calculated between gate downstream side and gate slot.When solving the problems, such as that gate hoist Capacity Selection and gate fall, due to that can not overcome the problems, such as frictional resistance to frictional resistance force evaluating deficiency, achieve the effect that gate is smoothly closed in dynamic water.
Description
Technical field
The invention belongs to hydraulic and hydroelectric engineering field of steel structure, be measured using triaxial force sensor and tension sensor it is perpendicular
To power to the method for frictional resistance when the landing of Calculation Plane gate, mainly solve when calculating gate frictional resistance because coefficient of friction selects
Take error and directly result in that headstock gear Capacity Selection is improper and plane gate in dynamic water because friction resistance gauge is not calculated accurately it is true caused by
Gate falls Practical Project problem not in place.
Background technique
Gate is movable water-retaining structure in hydraulic structure, is closed with it, opens or locally open water hole mouth, with
Control water level, adjust flow etc..Therefore, the safety and stability of gate is of great significance for the normal operation of key water control project.It is flat
Face gate because of simple structure, using light and handy, maintenance is convenient, it is cheap, the arrangement of building is required it is lower and easy to accomplish,
It is widely used in hydraulic engineering all the time.However, often needing to meet with the construction of the big library water-control project of high dam
The service condition of high water head, big discharge, plane emergency gate in the dynamic water can normal switching-off and its during the shutdown process
Hydrodynamic characterisitic is always focal issue of interest in gate design and utilization.In engineering practice, Chang Fasheng gate closes door
Shi Menye self weight and water column pressure are not enough to overcome frictional resistance, to cause plane emergency gate to close badge resistance, or even can not be complete
The engineering problem of contract fully seriously threatens the safety of unit and upstream and downstream building.
At present in China existing " hydraulic and hydroelectric engineering steel-slag sand design specification " (SL74-95), plane gate is given
With the calculation formula of the Qi Menli of gates of segmental shape.The research of forefathers is directed to the hoisting capacity of common down-the-hole type plane gate mostly, and
It is less to the test of frictional resistance suffered by gate to refer to, " hydraulic and hydroelectric engineering steel-slag sand design specification " (SL74-can only be passed through
95) several typical coefficient of frictions are selected within the scope of one.The coefficient of friction of steel to steel (dry friction) be 0.15~
0.60；Sliding bearing coefficient of friction: steel is 0.16~0.30 to the coefficient of friction of bronze (dry friction), steel-base copper-plastic compound material
Coefficient of friction to chromium-plated steel (stainless steel) is 0.05~0.14 ".These coefficient of frictions have been merely given as a range, specifically take
How much depending on situation at that time, just bear the character of much blindness when calculating frictional force in this way, it is easy to because value it is improper caused by
Gained frictional force is bigger than normal or less than normal, and it is improper that this will result directly in headstock gear Capacity Selection.Such as the Yi Taipu water power of Brazil, Paraguay
The bottom diversion outlet plane gate stood, water blocking area is 7.6m × 22m, head 140m, total water pressure be 199.81MN (about
19000t).Assuming that the coefficient of friction of selection is 0.1, the meter of frictional force when the design phase carrying out the calculating of walking support frictional force
Calculation result is 1900t.If the coefficient of friction selected differs 10% with practical coefficient of friction, walking support calculated rubs
It wipes power and just differs 190t.Here it is a very surprising deviations, thus the design phase it is how more scientific, reasonably calculate
Frictional resistance is extremely important for the selection of high pressure gate headstock gear capacity.Less serious case leads to that selected headstock gear capacity is bigger than normal, makes
At waste, severe one causes selected headstock gear capacity is less than normal cannot lead to major accident by starting gate in time, so to gate frictional resistance
The research of power just seems very necessary.The present invention is that a kind of innovation can use matching for triaxial force sensor and tension sensor
It closes using the method that can immediately arrive at frictional resistance size, the advantage is that gate is directly measured during dynamic water closes door and produced
Raw frictional resistance avoids selection coefficient of friction and causes to calculate frictional force error, so as to accurately select headstock gear capacity
With lasting force when increaseing or decreasing gate operation, that realizes gate smoothly closes door.
Summary of the invention
The method of the present invention produced frictional resistance when being a kind of measurement gate operation, to solve plane emergency gate dynamic
Water closes during door, caused by the error chosen by coefficient of friction headstock gear capacity choose it is improper and to the estimation of practical frictional resistance not
Foot causes to be difficult to overcome the problems, such as to close badge resistance caused by frictional resistance, gate falls the Practical Projects such as not in place.Meanwhile for reality
In put into long-term running plane emergency gate, will lead to gate due to water quality and gate slot material corrosion etc. at runtime
Frictional resistance becomes larger, and, by laying sensor on gate structure, can calculate gate operation under the conditions of gate slot is limited
When frictional resistance, to determining that headstock gear capacity and lasting force have directive significance again.
The technical solution adopted by the present invention is that:
A kind of experimental rig measuring the quiet frictional resistance of gate, including gate, gate shaft, gate are by door leaf crossbeam, door leaf
The plate sluice gate body of stringer, gate upstream face plate composition, gate upstream face plate are located at gate upstream side, are equipped with gate at the top of gate
Lifting lug；Including tension sensor and triaxial force sensor, the tension sensor is connected on gate lifting eye, three-axis force sensing
Device is arranged in the downstream side of gate upstream face plate；Including steel plate, when for measuring vertical force of the gate in dynamic water, by steel plate
One end is connect by screw with triaxial force sensor, and triaxial force sensor is fixed on gate；The steel plate other end by rivet with
Gate shaft is fixedly connected.
Further, gate bottom of the present invention is equipped with gate root edge, when gate falls, gate root edge and gate
The water inlet passage contacts baseplate of bottom.Gate two sides are equipped with emergency gate gate slot, and both ends are runner side wall.
Further, triaxial force sensor of the present invention is two, is arranged in the gate flap in gate panel downstream side or more
In the beam lattice at both ends, and welded with the downstream side of gate panel.
Further, gate longitudinal direction of the present invention two sides are equipped with support slipper, and support slipper is arranged in gate two sides
On the stringer of end, the resistance slided in emergency gate gate slot for reducing gate when gate is gone up and down, and make gate in thing
Therefore water (flow) direction is played a supporting role in gate recess.
A kind of test method measuring the quiet frictional resistance of gate, by triaxial force sensor and tension sensor with the use of survey
Frictional resistance when gate operation is tried, triaxial force sensor is arranged in gate beam lattice and is welded with panel, gate panel exists
One piece of rectangle steel plate is added in the downstream face of sensor in upstream；Gate uses upstream and downstream can work as gate with the pattern of water shutoff
When measuring vertical force with triaxial force sensor, then upstream water seal is only carried out, water seal pattern in upstream is p-type water seal and smears a large amount of
Lubriation material；When measuring the frictional resistance of a certain aperture of gate, to guarantee that the general safety of gate structure is stablized, by steel plate
The other end is fixed on gate shaft with rivet；When measuring gate lasting force using the tension sensor on wirerope, under gate
Trip carries out water seal, and gate upstream water seal at this time is still in action；It is made the difference when measuring vertical force with lasting force, so that it may count
Calculate the frictional resistance between gate downstream side and gate slot.
Further, the steel plate that the present invention adds on triaxial force sensor, it is intended to calculate gate rubbing in a certain aperture
Gate and gate shaft can be fixed when resistance, steel plate one end and the triaxial force sensor added are fixed, the other end and lock
Door well fix and with gate flap keeping parallelism, make gate against upstream gate slot and be in upstream water shutoff state, with downstream gate
Slot will generate certain gap, at this point, tension sensor and wirerope are in the state that do not stress, steel plate bears the weight of entire gate
Power.
Further, the tension sensor of the present invention using on wirerope measures gate lasting force, refers to gate
The lasting force that steel plate is measured is not added after laying tension sensor and, it is because of gate meeting under the impact of water flow that steel plate, which is not added,
Against downstream gate slot, at this point, the distance between gate and gate shaft are smaller, not influence the water seal of gate downstream and gate just
Often opening and closing, so not increasing steel plate when measuring lasting force using tension sensor.
Further, the calculating of frictional resistance of the present invention refers to and is measuring the vertical of a certain aperture using triaxial force sensor
When power, because steel plate abuts upstream gate slot with the fixation of gate shaft and separates with downstream gate slot, the vertical force measured at this time is gate flap
There is no the case where frictional resistance；Using tension sensor measure lasting force when gate flap because water impact abut downstream gate slot, such two
Person subtracts each other the frictional resistance that can obtain gate flap and downstream gate slot under a certain aperture.
The beneficial effects of the present invention are:
1, a kind of method that measurement gate moves frictional resistance when water closes, the advantage is that can be without value coefficient of friction
Under the conditions of, by laying sensor, practical frictional resistance can be measured, thus reach the accurate capacity for choosing gate hoist,
Avoid unnecessary loss.
2, the method that frictional resistance is measured in the present invention is passed under different apertures using two three-axis forces are laid on gate
Sensor measures gate vertical force, measures lasting force using tension sensor, the two, which is subtracted each other, can obtain frictional resistance, to solve gate
When headstock gear Capacity Selection problem and gate fall, due to that can not overcome the problems, such as frictional resistance, reach to frictional resistance force evaluating deficiency
The effect that gate is smoothly closed in dynamic water.
3, the triaxial force sensor in the present invention, which measures the vertical force acted on gate while can also measure, acts on
Flowing pressure on gate panel can then be compared multiplied by the coefficient of friction of selection with the frictional force measured, and judge this
The correctness of invention, meanwhile, and the calculating time to flowing pressure can be saved.
4, the triaxial force sensor in the present invention can also measure the cross force to gate action of Transverse to the flow direction, laterally
Whether active force is 0, can judge whether the gate being fixed on gate shaft in the present invention occurs tilting or upstream water shutoff
Imprecise situation.
5, the present invention has self check, easily operated, function and effect clear advantage.
Detailed description of the invention
Fig. 1 is the main view for laying the emergency gate of triaxial force sensor and steel plate.
Fig. 2 is Figure 1A-A sectional view.
Fig. 3 is Figure 1B-B sectional view.
Fig. 4 be measured using tension sensor former gate during dynamic water closes door lasting force with aperture situation of change
Figure.
Figure label, 1 gate lifting eye；2 bearing sliding blocks；3 door leaf stringers；4 triaxial force sensors；5 steel plates；6 door leaf crossbeams；
7 gate upstream face plates；8 screws；9 rivets；10 gate shafts；11 tension sensors；12 gate root edges；13 water inlet passage bottom plates；
14 water inlet passage side walls；15 emergency gate gate slotes.
Specific embodiment
Referring to Fig. 1, Fig. 2, attached drawing 3, experimental provision of the present invention includes gate, gate shaft 10, and gate includes 6 He of door leaf crossbeam
The plate sluice gate body that door leaf stringer 3, gate upstream face plate 7 form, gate upstream face plate 7 are located at gate upstream side, gate top
Equipped with gate lifting eye 1.Including tension sensor 11 and triaxial force sensor 4, the tension sensor 11 is connected to gate and hangs
On ear 1, triaxial force sensor 4 is arranged in the downstream side of gate upstream face plate 7, the upper and lower ends beam appropriate mainly in gate flap
Case set it is interior triaxial force sensor is placed respectively, the one side of sensor and the downstream side of gate panel are welded.Gate two
Side is equipped with emergency gate gate slot 15, and both ends are runner side wall.The gate bottom is equipped with gate root edge 12, when gate falls
When, gate root edge 12 is contacted with the water inlet passage bottom plate 13 of 10 bottom of gate shaft.The gate longitudinal direction two sides are equipped with support
Sliding block 2, support slipper 2 are arranged on the stringer of gate both side ends, for reducing gate in emergency gate in gate lifting
The resistance slided in gate slot 15, and gate water (flow) direction in emergency gate gate slot 15 is made to play a supporting role.In sensor
Downstream face adds one piece of rectangle steel plate 5, and the steel plate 5 added should choose the biggish steel of rigidity, is not influencing gate whereabouts
On the basis of according to the reasonable wide design size between gate and gate shaft 10.Gate uses upstream and downstream can be with the type of water shutoff
Formula then only carries out upstream water seal when gate measures vertical force with triaxial force sensor 4, in rubbing for the measurement a certain aperture of gate
When resistance, one end of steel plate 5 is connect by screw 8 with triaxial force sensor 4；General safety to guarantee gate structure is steady
It is fixed, 5 other end of steel plate be fixedly connected by rivet 9 with gate shaft 10 and with gate flap keeping parallelism, pass through three axis of support of screw 8
Force snesor 4 makes gate against 15 upstream of emergency gate gate slot and is in the state of upstream water shutoff, makes support slipper 2 and thing
Therefore 15 downstream side of gate recess generates gap.Tension sensor 11 is in the state that do not stress at this time, and steel plate bears entire gate
Gravity, triaxial force sensor 4 can measure vertical water flow vertical force；When measuring lasting force, steel plate 5 is removed, steel plate is not added
It is because gate can be against downstream gate slot, at this point, the distance between gate and gate shaft are smaller, for not under the impact of water flow
The normal opening and closing of the water seal of gate downstream and gate is influenced, so not increasing steel when measuring lasting force using tension sensor 11
Plate.Triaxial force sensor 4 keeps the state that do not stress, support slipper 2 meeting and 15 downstream of emergency gate gate slot under the action of water flow
Side is adjacent to, and tension sensor 11 measures lasting force.The power that triaxial force sensor 4 is measured with tension sensor 11 is made the difference, so that it may
Acquire gate support slipper 2 and frictional resistance caused by 15 downstream side of emergency gate gate slot at work.
Triaxial force sensor 4 in the present invention is two, is arranged in the gate flap upper and lower ends in gate panel downstream side
Beam lattice in, and welded with the downstream side of gate panel.
As upstream water level 2515.0m, water flow is that lock hole goes out to flow, and measures former gate using tension sensor and closes a mistake in dynamic water
Lasting force is with the situation of change of aperture as shown in figure 4, in gate 10%, 20%, 30%, 40%, 50%, 60%, 80% in journey
Aperture under to measure lasting force with tension sensor be the 1st row acquired results of following table.By physical experiments, three-axis force is measured
The vertical force of sensor vertical water flow is the 2nd row as a result, it is the 3rd row result that the two, which subtracts each other to rub frictional force a,；It is public according to frictional force
Formula, the synthesis dynamic friction coefficient for measuring the gate is 0.28, is by calculating the hydrostatic pressure result acted on gate panel
Shown in 4th row, frictional force b is obtained multiplied by coefficient of friction 0.28 with the 4th row data, frictional force a and frictional force b are compared into discovery
As a result very little is differed, i.e. this test is effective and feasible.
Claims (9)
1. a kind of experimental rig for measuring the quiet frictional resistance of gate, it is characterized in that: including gate, gate shaft (10), gate is by door
The plate sluice gate body that page crossbeam (6), door leaf stringer (3), gate upstream face plate (7) form, gate upstream face plate (7) are located at gate
Upstream side, gate top are equipped with gate lifting eye (1)；Including tension sensor (11) and triaxial force sensor (4), the pulling force
Sensor (11) is connected on gate lifting eye (1), and triaxial force sensor (4) is arranged in the downstream side of gate upstream face plate (7), packet
Steel plate (5) being included, when for measuring vertical force of the gate in dynamic water, one end of steel plate (5) being passed by screw (8) and three-axis force
Sensor (4) connection, triaxial force sensor (4) are fixed on gate, and steel plate (5) other end passes through rivet (9) and gate shaft (10)
It is fixedly connected.
2. the experimental rig of the measurement quiet frictional resistance of gate according to claim 1, it is characterized in that: the gate bottom is set
There are gate root edge (12), when gate falls, the water inlet passage bottom plate (13) of gate root edge (12) and gate shaft (10) bottom
Contact.
3. the experimental rig of the measurement quiet frictional resistance of gate according to claim 1, it is characterized in that: gate two sides are equipped with accident
Gate recess (15), both ends are runner side wall.
4. the experimental rig of the measurement quiet frictional resistance of gate according to claim 1, it is characterized in that: triaxial force sensor (4)
Be two, be arranged in the beam lattice of the gate flap upper and lower ends in gate panel downstream side, and with the downstream side of gate panel into
Row welding.
5. the experimental rig of the measurement quiet frictional resistance of gate according to claim 1, it is characterized in that: the gate longitudinal two
Side is equipped with support slipper (2), and support slipper (2) is arranged on the stringer of gate both side ends, for reducing when gate is gone up and down
The resistance that gate slides in emergency gate gate slot (15), and gate is made to play branch in emergency gate gate slot (15) interior water (flow) direction
Support effect.
6. a kind of test method for measuring the quiet frictional resistance of gate, including the described in any item devices of claim 1-5, feature
Be: frictional resistance when by triaxial force sensor (4) and tension sensor (11) with the use of test strobe operation passes three-axis force
Sensor (4) is arranged in gate beam lattice and is welded with panel, and gate panel adds one in upstream, in the downstream face of sensor
Block rectangle steel plate (5)；Gate uses upstream and downstream that can erect with the pattern of water shutoff when gate is measured with triaxial force sensor (4)
When to power, then upstream water seal is only carried out, water seal pattern is p-type water seal and smears a large amount of lubriation material；In measurement gate
When the frictional resistance of one aperture, to guarantee that the general safety of gate structure is stablized, the other end of steel plate is fixed on lock with rivet (9)
On Men Jing (10)；When measuring gate lasting force using the tension sensor (11) on wirerope, gate downstream carries out water seal, this
When gate upper water envelope still in action；It is made the difference when measuring vertical force with lasting force, so that it may calculate gate downstream
Frictional resistance between side and gate slot.
7. the test method of the measurement quiet frictional resistance of gate according to claim 6, it is characterized in that: in triaxial force sensor
(4) steel plate (5) added on, it is intended to which gate and gate shaft (10) can be carried out in the frictional resistance of a certain aperture by calculating gate
Fixed, steel plate (10) one end and triaxial force sensor (4) added are fixed, and the other end is fixed with gate shaft (10) and and gate flap
Keeping parallelism makes gate against upstream gate slot and is in the state of upstream water shutoff, will generate certain gap with downstream gate slot,
At this point, tension sensor (11) and wirerope are in the state that do not stress, steel plate (5) bears the gravity of entire gate.
8. the test method of the measurement quiet frictional resistance of gate according to claim 6, it is characterized in that: described utilizes wirerope
On tension sensor (11) measure gate lasting force, refer to gate lay tension sensor (11) add steel plate afterwards and not
(5) lasting force measured.
9. the test method of the measurement quiet frictional resistance of gate according to claim 6, it is characterized in that: the wherein meter of frictional resistance
It calculates, refers to that gate flap is because of steel plate (5) and gate shaft (10) when measuring the vertical force of a certain aperture using triaxial force sensor (4)
Fixation against upstream gate slot and being separated with downstream gate slot, the vertical force measured at this time is that do not have the case where frictional resistance；Utilize drawing
For gate flap because water impact is against downstream gate slot, the two, which is subtracted each other, in this way can obtain a certain open when force snesor (11) measures lasting force
Spend the frictional resistance of lower gate flap and downstream gate slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910396766.9A CN110068412A (en) | 2019-05-14 | 2019-05-14 | A kind of experimental rig and method measuring the quiet frictional resistance of gate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910396766.9A CN110068412A (en) | 2019-05-14 | 2019-05-14 | A kind of experimental rig and method measuring the quiet frictional resistance of gate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110068412A true CN110068412A (en) | 2019-07-30 |
Family
ID=67370675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910396766.9A Pending CN110068412A (en) | 2019-05-14 | 2019-05-14 | A kind of experimental rig and method measuring the quiet frictional resistance of gate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110068412A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06109621A (en) * | 1992-09-28 | 1994-04-22 | Kinugawa Rubber Ind Co Ltd | Rotational friction resistance test device |
| JP2001200830A (en) * | 2000-01-18 | 2001-07-27 | Chuo Spring Co Ltd | Friction hinge device and portable business equipment utilizing it |
| JP2002081043A (en) * | 2000-09-08 | 2002-03-22 | Kubota Corp | Gate with built-in pump |
| KR20020033662A (en) * | 2002-01-29 | 2002-05-07 | 문동신 | Water gate rim construction of minimum friction resistance to easy open and crose for water gate |
| CN101221075A (en) * | 2007-12-24 | 2008-07-16 | 中国水电顾问集团中南勘测设计研究院 | Frictional resistance meter and its testing method |
| KR20110003318U (en) * | 2009-09-18 | 2011-04-01 | 전상준 | Gate for controlling water level |
| CN102226730A (en) * | 2011-05-17 | 2011-10-26 | 天津大学 | Model test method for testing influence of sediments located in front of gate on lifting force of gate |
| CN103400002A (en) * | 2013-07-30 | 2013-11-20 | 天津大学 | Plane gate design simulation platform |
| CN105568935A (en) * | 2016-01-14 | 2016-05-11 | 中国电建集团贵阳勘测设计研究院有限公司 | Opening and closing method for small-orifice gate and adopted small-orifice gate |
| CN107202706A (en) * | 2017-06-07 | 2017-09-26 | 中国矿业大学 | A kind of scrapper conveyor frictional resistance experimental rig and method for simulating coal heaver's condition |
| CN109084921A (en) * | 2018-07-17 | 2018-12-25 | 中铁工程装备集团有限公司 | A kind of push-bench tube coupling frictional resistance Detecting data and detection method |
| CN109537535A (en) * | 2018-11-30 | 2019-03-29 | 天津大学 | A kind of plane binodal emergency gate closing door conducive to dynamic water |
| CN209727322U (en) * | 2019-05-14 | 2019-12-03 | 天津大学前沿技术研究院 | A kind of experimental rig measuring the quiet frictional resistance of gate |
-
2019
- 2019-05-14 CN CN201910396766.9A patent/CN110068412A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06109621A (en) * | 1992-09-28 | 1994-04-22 | Kinugawa Rubber Ind Co Ltd | Rotational friction resistance test device |
| JP2001200830A (en) * | 2000-01-18 | 2001-07-27 | Chuo Spring Co Ltd | Friction hinge device and portable business equipment utilizing it |
| JP2002081043A (en) * | 2000-09-08 | 2002-03-22 | Kubota Corp | Gate with built-in pump |
| KR20020033662A (en) * | 2002-01-29 | 2002-05-07 | 문동신 | Water gate rim construction of minimum friction resistance to easy open and crose for water gate |
| CN101221075A (en) * | 2007-12-24 | 2008-07-16 | 中国水电顾问集团中南勘测设计研究院 | Frictional resistance meter and its testing method |
| KR20110003318U (en) * | 2009-09-18 | 2011-04-01 | 전상준 | Gate for controlling water level |
| CN102226730A (en) * | 2011-05-17 | 2011-10-26 | 天津大学 | Model test method for testing influence of sediments located in front of gate on lifting force of gate |
| CN103400002A (en) * | 2013-07-30 | 2013-11-20 | 天津大学 | Plane gate design simulation platform |
| CN105568935A (en) * | 2016-01-14 | 2016-05-11 | 中国电建集团贵阳勘测设计研究院有限公司 | Opening and closing method for small-orifice gate and adopted small-orifice gate |
| CN107202706A (en) * | 2017-06-07 | 2017-09-26 | 中国矿业大学 | A kind of scrapper conveyor frictional resistance experimental rig and method for simulating coal heaver's condition |
| CN109084921A (en) * | 2018-07-17 | 2018-12-25 | 中铁工程装备集团有限公司 | A kind of push-bench tube coupling frictional resistance Detecting data and detection method |
| CN109537535A (en) * | 2018-11-30 | 2019-03-29 | 天津大学 | A kind of plane binodal emergency gate closing door conducive to dynamic water |
| CN209727322U (en) * | 2019-05-14 | 2019-12-03 | 天津大学前沿技术研究院 | A kind of experimental rig measuring the quiet frictional resistance of gate |
Non-Patent Citations (8)
| Title |
|---|
| 刘昉: "水流脉动壁压特性及其相似律研究", 中国博士学位论文全文数据库 工程科技II辑, no. 4, 15 April 2009 (2009-04-15), pages 037 - 1 * |
| 唐琳;: "瓦屋山水电站右岸泄洪洞事故闸门设计分析", 机电信息, no. 15, 25 May 2012 (2012-05-25) * |
| 李国庆, 杨纪伟, 杨波, 李冰: "天桥水电站泄洪洞工作闸门启闭力原型观测成果分析", 水利水电技术, no. 10, 20 October 2005 (2005-10-20) * |
| 杨敏;牛利敏;陈林;李会平;: "长输水隧洞中段有压平面闸门启闭力及稳定性试验", 水利水电科技进展, no. 03, 5 May 2016 (2016-05-05) * |
| 梁超等: "高坝泄流诱发事故闸门的爬行振动研究", 水利学报, vol. 49, no. 12, 31 December 2018 (2018-12-31), pages 1503 - 1510 * |
| 牛占，白东义，杜军，王正军: "闸门淤沙摩阻力试验", 泥沙研究, no. 01, 30 March 1996 (1996-03-30) * |
| 程展林;左永振;姜景山;丁红顺;: "粗粒料试验中界面摩阻力的试验研究", 岩土工程学报, no. 03, 15 March 2009 (2009-03-15) * |
| 陈端;王忠亮;陈秀玲;: "偏心铰式弧形闸门启闭力试验研究", 长江科学院院报, no. 05, 15 May 2010 (2010-05-15) * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105714730B (en) | Hydraulic engineering multidimensional adjusts test platform | |
| CN209727322U (en) | A kind of experimental rig measuring the quiet frictional resistance of gate | |
| Liu et al. | Impact characteristics of free over-fall in pool zone with upstream bed slope | |
| Al-Naely et al. | Effect of opening holes on the hydraulic performance for crump weir | |
| CN114001710B (en) | High-precision channel flow cross-section area measuring device and measuring method | |
| CN110068412A (en) | A kind of experimental rig and method measuring the quiet frictional resistance of gate | |
| Xia et al. | Stability criterion for people in floods for various slopes | |
| Chen et al. | Scale effects of air-water flows in stilling basin of multi-horizontal submerged jets | |
| CN209802556U (en) | Test device for measuring dynamic frictional resistance when gate moves water to open and close | |
| CN107447719B (en) | The method for eliminating gates of segmental shape bottom seal and connector cavitation corrosion and flutter failure | |
| Li et al. | Numerical simulation of dissolved oxygen supersaturation flow over the Three Gorges Dam spillway | |
| CN109537535B (en) | Planar double-section accident gate beneficial to closing door by moving water | |
| Ma et al. | Failure analysis of a leaf gate jammed in closing process | |
| CN116625439A (en) | Real-time monitoring device for drainage flow under hydraulic and hydroelectric engineering | |
| Gupta et al. | Prediction of depth ratio, jump length and energy loss in sloped channel hydraulic jump for environmental sustainability | |
| CN110068411A (en) | A kind of measurement gate moves the experimental rig and method of dynamic frictional resistance when water closes | |
| CN205138830U (en) | Touch end from hairdo bed material sample thief | |
| CN211824573U (en) | Small-flow irregular river flow measurement auxiliary device | |
| CN209310875U (en) | A kind of Hydraulic Projects installation water level detecting device structure | |
| CN105180895A (en) | Device and method used for monitoring maximum settlement of concrete faced rockfill dam | |
| CN212110241U (en) | Water level measuring device for hydraulic engineering | |
| CN208384570U (en) | For the calibration model sluice in numerical simulation | |
| Markovic–Brankovic et al. | New high head leaf gate form with smooth upstream face | |
| CN111121854A (en) | Device for measuring energy dissipation rate of trajectory jet energy dissipater and using method | |
| CN117057282B (en) | Method for calculating split ratio of hub building in ship lock pass lock operation period and application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |