CN104612099B - A kind of gate support experiment of friction performance device and method calculating force of opening and closing - Google Patents

A kind of gate support experiment of friction performance device and method calculating force of opening and closing Download PDF

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Publication number
CN104612099B
CN104612099B CN201510003986.2A CN201510003986A CN104612099B CN 104612099 B CN104612099 B CN 104612099B CN 201510003986 A CN201510003986 A CN 201510003986A CN 104612099 B CN104612099 B CN 104612099B
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test
gate
support
value
force
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CN104612099A (en
Inventor
陈发展
严根华
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Nanjing Hydraulic Research Institute of National Energy Administration Ministry of Transport Ministry of Water Resources
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Nanjing Hydraulic Research Institute of National Energy Administration Ministry of Transport Ministry of Water Resources
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B1/00Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
    • E02B1/02Hydraulic models
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B7/00Barrages or weirs; Layout, construction, methods of, or devices for, making same
    • E02B7/20Movable barrages; Lock or dry-dock gates
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N19/00Investigating materials by mechanical methods
    • G01N19/02Measuring coefficient of friction between materials

Abstract

A kind of gate support experiment of friction performance device and method calculating force of opening and closing, it is to provide a kind of experimental rig and method for the frictional behavior of test backing material and water-blocking material, and provide a kind of method that the frictional behavior obtained based on this equipment calculates force of opening and closing, it is characterised by comprising: the present apparatus includes: support section, translation part, press perpendicular part, test for added water component, tension measurement part and other assemblies;Based on support section, other each sections and test specimen are supported;Translation is partially installed on support section, and test specimen is pulled to slide in the horizontal direction;Press perpendicular is partially installed on translation part and pressurizes to test specimen, and test for added water component, which is mounted on support section, adds water for test specimen, and tension measurement is partially installed on support section, measures horizontal pull.Belong to model tests of hydraulic engineering field.The present invention gives the gate support frictional behavior test and calculation method of relatively truth using test method;The gate support frictional behavior and its hoisting capacity calculated value provided by this test method gives headstock gear minimum safe capacity, saves investment.

Description

A kind of gate support experiment of friction performance device and method calculating force of opening and closing
Technical field
The present invention relates to a kind of gates for calculating force of opening and closing to support experiment of friction performance device and method, especially one Kind while the test method for simulating each sections frictions such as hydraulic engineering gate sliding block, idler wheel, sprocket wheel, water seal, belong to hydraulic engineering Test field.
Background technique
The support of hydraulic engineering gate and sealing new material continue to bring out, and frictional behavior is had nothing in common with each other.The friction of material Characteristic produces a very large impact accurately calculating for force of opening and closing.In the prior art, the method for measuring coefficient of friction is exactly normal The normal pressure of rule and the ratio of pulling force.But the gate of hydraulic engineering generally high pressure, high humidity environment in use for a long time, and Support and water-blocking material section configuration are irregular, and the material friction coefficient measured using conventional means cannot really be reflected in height Practical frictional behavior under the conditions of pressure, high humidity, complicated contact surface.Some complicated high molecular materials, be more than under certain pressure very Pressure inelastic region can extremely be entered.During gate design, the calculating Primary Reference gate backing material of headstock gear capacity and The frictional behavior of water-blocking material, if therefore gate support frictional behavior cannot accurately obtain, force of opening and closing calculating in will lack Few critical data, is unable to complete the type selecting of headstock gear;Or since frictional behavior measures inaccuracy, headstock gear selects improper initiation Engineering accident and economic loss.
Summary of the invention
A kind of gate support experiment of friction performance device and method for calculating force of opening and closing of the present invention are exactly test branch The frictional behavior of timbering material and water-blocking material provides a kind of experimental rig and method, and provides and a kind of being rubbed based on what this equipment obtained Wipe the method that characteristic calculates force of opening and closing.
Specifically the present apparatus includes: support section, translation part, press perpendicular part, test for added water component, pulling force survey Amount part and other assemblies;Based on support section, other each sections and test specimen are supported;Translation is partially installed on support section On, pull test specimen to slide in the horizontal direction;Press perpendicular is partially installed on translation part and pressurizes to test specimen, test for added water component It is mounted on support section and adds water for test specimen, tension measurement is partially installed on support section, measures horizontal pull;
The support section includes:
Bracket, temple, strut (side), strut (in), inner support, guide rod, upper beam, bottom beam, test specimen cushion, bracket, motor peace Loading board;
The translation part includes:
Travel switch seat, rope sheave frame (lower-left), rope sheave frame (upper left), rope sheave, wirerope, steel wire rope clamp (8mm), wirerope It presss from both sides (6mm), base of the carrier head, rack support, rack gear, rope sheave frame pad, rope sheave frame (left side), traverse gear, be translatable motor transmission, rack gear Seat;
The press perpendicular part includes:
Cross-arm, lifting gear, motor gear, lower left-handed screw, upper right handed screw, gravity steel, lifting motor, specimen stage, Elevator, compression bar, limit switch seat (under), limit switch seat (on);
The test for added water component includes:
Discharging valve, water accumulating disc;
The tension measurement part includes:
Pull head, tension sensor, connector, test specimen;
The other assemblies include:
Right shell body afterwards, left back baffle control box, preceding right shell body lifter plate pad, preceding right baffle-plate, housing, o type sealing ring (A012), o type sealing ring (A016).
The backing material test section that fixed gate is selected on level table intends gate slot sliding rail with gravity beam form, and in weight Accurate pressurizing device is set above power beam, simulates the actual pressure that the supporting section is born under gate operating condition, (M1) meter Supporting section frictional behavior when gate is run, then (M2) simulation gate starting speed of service and mode are calculated, is obtained in full simulation side Coefficient of friction under formula.
(M1) calculates supporting section frictional behavior when gate is run and refers to:
(1) for routine use gate: carrying out fatigue test to backing material test section first: in design conditions pressure Under, water state fatigue friction has been carried out, has been rubbed 1000 times;Secondly backing material test section frictional behavior is measured: setting fid Material test section is operating condition actual pressure;Gross head pressure when the actual pressure refers to check operating condition at Jeakage through Sluice Sealant By force;It under the pressure, executes experiment of friction performance 30 times, records pulling force graph, take maximum value conduct in 30 graphs Calculate the value of thrust f of supporting section frictional behavior when gate is run;Inventor has found that the method is obtained after test of many times Value of thrust f is greater than and closest day commonly uses the value of thrust of gate;
(2) door is enabled for accident: linkage voltage test is carried out to backing material test section first: checking working condition pressure Under, water state pressurization is carried out, the continuous pressure time is 15 days;Followed by measure backing material test section frictional behavior: setting Backing material test section is to check operating condition actual pressure, is executed experiment of friction performance 30 times, records pulling force graph, takes 30 mistakes Maximum value is as the value of thrust f for calculating supporting section frictional behavior when gate is run in journey line;Inventor sends out after test of many times Existing, the method value of thrust f obtained is greater than and closest accident enables the value of thrust of door;
(M2) simulation gate starting speed of service and mode, the coefficient of friction obtained under full analog form are Refer to:
For gate, different headstock gear capacity, the process that gate is mentioned out is different, therefore is adopted in the present invention The backing material test section method of operation is set with feedback analysis method, specifically includes:
A, initial setting headstock gear capacity, calculation method are as follows:
The theoretical net hydrodynamic force of hoisting capacity=f+G+;Headstock gear capacity is chosen using theoretical hoisting capacity, according to headstock gear Capacity obtains the hoisting capacity F for selecting headstock gear1
Above-mentioned f is the value of thrust obtained in (M1), and G is gate gravity, and net hydrodynamic force is measured by model test;
Due to being participated in during test without gate, also participated in without net hydrodynamic force, therefore the pulling force of experimental rig Value are as follows:
f1The hoisting capacity F of=selection headstock gear1The net hydrodynamic force of-G-;
B, experimental rig value of thrust is set as f1, routine use gate is tested according to (1) step, for accident It enables door to be tested according to (2) step, records pulling force graph;
C, select maximum pull as experimental rig value of thrust f on the pulling force graph recorded1Repeat step b;
D, when the pulling force graph maximum pull value difference recorded twice is less than 3%, terminate test, take and finally measure twice Pulling force graph in maximum value as frictional force fend
E, formula μ=f is utilizedend/ N calculates coefficient of friction;
F, headstock gear capacity=fendThe net hydrodynamic force of+G+.
The method have the advantages that:
(1) present invention gives gate support frictional behavior test and the meter of relatively truth using test method Calculation method;
(2) the gate support frictional behavior and its hoisting capacity calculated value provided by this test method gives headstock gear most Small safe capacity saves investment.
Detailed description of the invention
The gate that Fig. 1 calculates force of opening and closing supports experiment of friction performance device uncovered front view;
The gate that Fig. 2 calculates force of opening and closing supports experiment of friction performance device uncovered rearview;
The gate that Fig. 3 calculates force of opening and closing supports experiment of friction performance device uncovered top view;
The gate that Fig. 4 calculates force of opening and closing supports experiment of friction performance device uncovered side view;
The gate support experiment of friction performance device that Fig. 5 calculates force of opening and closing covers other direction side view;
The gate support experiment of friction performance device that Fig. 6 calculates force of opening and closing covers rear front view;
The gate that Fig. 7 calculates force of opening and closing supports the position experiment of friction performance device I enlarged drawing;
Fig. 8 calculates rear left view stereo figure on the gate support experiment of friction performance device of force of opening and closing;
The gate support experiment of friction performance device that Fig. 9 calculates force of opening and closing is gone forward LOOK RIGHT perspective view;
The gate that Figure 10 calculates force of opening and closing supports front left view stereo figure under experiment of friction performance device;
The gate that Figure 11 calculates force of opening and closing supports rear left view stereo figure under experiment of friction performance device;
Figure 12 calculates rear left view stereo figure on the gate support experiment of friction performance device covering shell of force of opening and closing.
1 bracket, right shell body after 2,3 temples, 4 struts (side), 5 guide rods, 6 lifting gears, 7 struts (in), 8 limit switch seats (under), 9 lower left-handed screws, 10 cross-arms, 11 inner supports, 12 travel switch seats, 13 discharging valves, 14 left back baffles, 15 water accumulating discs, 16 ropes Wheel carrier (lower-left), 17 rope sheave framves (upper left), 18 rope sheaves, 19 wirerope, 20 steel wire rope clamps (8mm), 21 steel wire rope clamps (6mm), 22 Base of the carrier head, 23 rack supports, 24 rack gears, right handed screw on 25,26 upper beams, 27 rope sheave framves (left side), 28 bottom beams, 29 gravity steel, 30 Control box, 31 motor gears, 32 lifting motors, 33 traverse gears, 34 translation motor transmissions, 35 pull heads, 36 tension sensors, 37 connectors, 38o type sealing ring (A012), right shell body lifter plate pad before 39,40 test specimen cushions, 41o type sealing ring (A016), 43 Test specimen, 44 rack gear seats, 45 limit switch seats (on), 46 specimen stages, right baffle-plate before 47,48 rope sheave frame pads, 49 brackets, 50 compression bars, 51 motor mounting plates, 52 elevators, 53 housings, 54 gravity beams.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the present invention is described in detail.
A kind of gate support experiment of friction performance device and method for calculating force of opening and closing of the present invention are exactly test branch The frictional behavior of timbering material and water-blocking material provides a kind of experimental rig and method, and provides and a kind of being rubbed based on what this equipment obtained Wipe the method that characteristic calculates force of opening and closing.
Specifically the present apparatus includes: support section, translation part, press perpendicular part, test for added water component, pulling force survey Amount part and other assemblies;Based on support section, other each sections and test specimen are supported;Translation is partially installed on support section On, pull test specimen to slide in the horizontal direction;Press perpendicular is partially installed on translation part and pressurizes to test specimen, test for added water component It is mounted on support section and adds water for test specimen, tension measurement is partially installed on support section, measures horizontal pull;
The support section includes:
Bracket 1, temple 3, strut (side) 4, strut (in) 7, inner support 11, guide rod 5, upper beam 26, bottom beam 28, test specimen cushion 40, bracket 49, motor mounting plate 51;
The translation part includes:
Travel switch seat 12, rope sheave frame (lower-left) 16, rope sheave frame (upper left) 17, rope sheave 18, wirerope 19, steel wire rope clamp (8mm) 20, steel wire rope clamp (6mm) 21, base of the carrier head 22, rack support 23, rack gear 24, rope sheave frame pad 48, rope sheave frame (left side) 27 are put down Moving gear 33, be translatable motor transmission 34, rack gear seat 44;
The press perpendicular part includes:
Cross-arm 10, lifting gear 6, motor gear 31, lower left-handed screw 9, upper right handed screw 25, gravity steel 29, lifting electricity Machine 32, specimen stage 46, elevator 52, compression bar 50, limit switch seat (under) 8, limit switch seat (on) 45;
The test for added water component includes:
Discharging valve 13, water accumulating disc 15;
The tension measurement part includes:
Pull head 35, tension sensor 36, connector 37, test specimen 43;
The other assemblies include:
Right shell body 2 afterwards, left back baffle 14 control box 30, preceding right shell body lifter plate pad 39, preceding right baffle-plate 47, housing 53, o Type sealing ring (A012) 38, o type sealing ring (A016) 41.
The backing material test section that gate is selected is placed on specimen stage 46 as test specimen 43, with 54 analog gate of gravity beam Slot sliding rail, and accurate pressurizing device is set above gravity beam 54, the backing material test section is simulated under gate operating condition The actual pressure born, (M1) are tested and are calculated backing material test section frictional behavior, (M2) Analog Gate in gate operation The door starting speed of service and mode, obtain the coefficient of friction under full analog form.
(M1), which is tested and calculated backing material test section frictional behavior in gate operation, to be referred to:
(1) for routine use gate: carrying out fatigue test to backing material test section (supporting section) first: in design work 1.78MPa under condition pressure has carried out water state fatigue friction, rubs 1000 times;Secondly the friction of measurement backing material test section is special Property: setting backing material test section is operating condition actual pressure 1.78MPa;The actual pressure refers to design conditions time gating Gross head pressure at door water seal;It under the pressure, executes experiment of friction performance 30 times, records pulling force graph, take 30 times Maximum value is as the value of thrust f for calculating supporting section frictional behavior when gate is run in graphIt is daily=203kN;Calculate entire lock The frictional force of door are as follows: FT is daily=20fIt is daily=4060kN surveys the frictional force of prototype gate are as follows: FP is daily=3798kN;Inventor's warp It is found after test of many times, the method value of thrust F obtainedT is dailyIt is greater than and commonly uses closest day the value of thrust of gate;
(2) door is enabled for accident: linkage voltage test is carried out to backing material test section first: checking operating condition pressure Lower 1.95MPa has carried out water state pressurization, and the continuous pressure time is 15 days;Followed by the friction of measurement backing material test section is special Property: setting backing material test section is to check operating condition actual pressure 1.95MPa, is executed experiment of friction performance 30 times, and pulling force is recorded Graph takes value of thrust f of the maximum value as calculating supporting section frictional behavior in gate operation in 30 graphsAccident= 227kN;Calculate the frictional force of entire gate are as follows: FT accident=20f=4540kN surveys the frictional force of prototype gate are as follows: FP accident= 4250kN;Inventor has found after test of many times, the method value of thrust F obtainedT accidentIt is greater than and closest accident enables The value of thrust of door;
(M2) simulation gate starting speed of service and mode, the coefficient of friction obtained under full analog form are Refer to:
For gate, different headstock gear capacity, the process that gate is mentioned out is different, therefore is adopted in the present invention The backing material test section method of operation is set with feedback analysis method, specifically includes:
A, initial setting headstock gear capacity, calculation method are as follows:
The theoretical net hydrodynamic force of hoisting capacity F=f+G+;Headstock gear capacity is chosen using theoretical hoisting capacity, according to headstock gear Capacity obtains the hoisting capacity F for selecting headstock gear1
The f above-mentioned for routine use gate is that the value of thrust 4060kN, G obtained in (M1) is gate gravity 1200kN, Net hydrodynamic force 11153kN is measured by model test;Theoretical hoisting capacity=4060+1200+11153=16413kN;It selects Headstock gear hoisting capacity F1=18000kN;
Due to being participated in during test without gate, also participated in without net hydrodynamic force, therefore the pulling force of experimental rig Value are as follows:
f1The hoisting capacity F of=selection headstock gear1The net hydrodynamic force of-G-;f1=18000-1200-11153=5647kN;
Enabling value of thrust 4250kN, G that the above-mentioned f of gate is acquisition in (M2) for accident is gate gravity 980kN, only Hydrodynamic force 10167kN is measured by model test;Theoretical hoisting capacity=4250+980+10167=15397kN;It selects The hoisting capacity F of headstock gear1=16000kN;
Due to being participated in during test without gate, also participated in without net hydrodynamic force, therefore the pulling force of experimental rig Value are as follows:
f1The hoisting capacity F of=selection headstock gear1The net hydrodynamic force of-G-;f1=16000-980-10167=4853kN
B, for routine use gate, experimental rig value of thrust is set as f1=5647kN is surveyed according to (1) step Examination enables door for accident, sets experimental rig value of thrust as f1=4853kN is tested according to (2) step, records pulling force Graph;
C, select maximum pull as experimental rig value of thrust f on the pulling force graph recorded1Step b is repeated,
For routine use gate f1=5742kN enables door f for accident1=4894kN;
D, when the pulling force graph maximum pull value difference recorded twice is less than 3%, terminate test, take and finally measure twice Pulling force graph in maximum value as frictional force fend
For routine use gate (5742-5647)/5647=1.7% < 3%, so fend=5742kN;For accident Door (4894-4853)/4853=0.8% < 3% is enabled, so fend=4894kN;
E, formula μ=f is utilizedend/ N calculates coefficient of friction;
For routine use gate μ=fend/ N=5742kN/ (1.78MPa × 20m2)=0.161
Gate μ=f is enabled for accidentend/ N=4894kN/ (1.92MPa × 12m2)=0.212
F, for routine use gate: headstock gear hoisting capacity=fendNet hydrodynamic force=the 5742+1200+11153 of+G+ =18095kN, therefore routine use gate hoist capacity is 18200kN;
Gate: headstock gear hoisting capacity=f is enabled for accidentendNet hydrodynamic force=the 4894+980+10167=of+G+ 16041kN is 16200kN because the accident enables gate hoist capacity.

Claims (4)

1. a kind of gate for calculating force of opening and closing supports experiment of friction performance device, which is characterized in that the device includes: Support section, translation part, press perpendicular part, test for added water component, tension measurement part and other assemblies;Support section is Basis supports other each sections and test specimen;Translation is partially installed on support section, and test specimen is pulled to slide in the horizontal direction; Press perpendicular is partially installed on translation part and pressurizes to test specimen, and test for added water component is mounted on support section to be added for test specimen Water, tension measurement are partially installed on support section, measure horizontal pull
The support section includes:
Bracket, temple, strut, inner support, guide rod, upper beam, bottom beam, test specimen cushion, bracket, motor mounting plate;
The translation part includes:
Travel switch seat, rope sheave frame, rope sheave, wirerope, steel wire rope clamp, base of the carrier head, rack support, rack gear, rope sheave frame pad, translation Gear, be translatable motor transmission, rack gear seat;
The press perpendicular part includes:
Cross-arm, lifting gear, motor gear, lower left-handed screw, upper right handed screw, gravity steel, lifting motor, specimen stage, lifting Block, compression bar, limit switch seat;
The test for added water component includes:
Discharging valve, water accumulating disc;
The tension measurement part includes:
Pull head, tension sensor, connector, test specimen;
The other assemblies include:
Right shell body afterwards, left back baffle control box, preceding right shell body lifter plate pad, preceding right baffle-plate, housing, o type sealing ring.
2. a kind of gate for calculating force of opening and closing supports experiment of friction performance method, it is characterised in that: use claim 1 institute A kind of gate support experiment of friction performance device for the calculating force of opening and closing stated is tested;
The backing material test section that fixed gate is selected on level table intends gate slot sliding rail with gravity beam form, and in gravity beam Accurate pressurizing device is arranged in top, simulates the actual pressure that the supporting section is born under gate operating condition, and (M1) calculates branch Section frictional behavior when gate is run, then (M2) simulation gate starting speed of service and mode are supportted, is obtained under full analog form Coefficient of friction.
3. a kind of gate for calculating force of opening and closing according to claim 2 supports experiment of friction performance method, feature Be: (M1) calculates supporting section frictional behavior in gate operation and refers to:
(1) for routine use gate: fatigue test is carried out to backing material test section first: under design conditions pressure, into Row has water state fatigue friction, rubs 1000 times;Secondly measure backing material test section frictional behavior: setting backing material is tested Section is operating condition actual pressure;Gross head pressure when the actual pressure refers to check operating condition at Jeakage through Sluice Sealant;Institute It states under pressure, executes experiment of friction performance 30 times, record pulling force graph, maximum value in 30 graphs is taken to support as calculating The value of thrust f of section frictional behavior in gate operation;Inventor has found after test of many times, the method value of thrust f obtained It is greater than and commonly uses closest day the value of thrust of gate;
(2) door is enabled for accident: linkage voltage test is carried out to backing material test section first: in the case where checking working condition pressure, Water state pressurization is carried out, the continuous pressure time is 15 days;Followed by measure backing material test section frictional behavior: setting support Testing of materials section is to check operating condition actual pressure, is executed experiment of friction performance 30 times, records pulling force graph, takes 30 graphs Middle maximum value is as the value of thrust f for calculating supporting section frictional behavior when gate is run;Inventor has found after test of many times, this Method value of thrust f obtained is greater than and closest accident enables the value of thrust of door.
4. a kind of gate for calculating force of opening and closing according to claim 2 supports experiment of friction performance method, feature Be: (M2) simulation gate starting speed of service and mode, the coefficient of friction obtained under full analog form refer to:
For gate, different headstock gear capacity, gate is raised open process and is different, therefore adopts in the present invention The backing material test section method of operation is set with feedback analysis method, specifically includes:
A, initial setting headstock gear capacity, calculation method are as follows:
The theoretical net hydrodynamic force of hoisting capacity=f+G+;Headstock gear capacity is chosen using theoretical hoisting capacity, according to headstock gear capacity Obtain the hoisting capacity F for selecting headstock gear1
Above-mentioned f is the value of thrust obtained in (M1), and G is gate gravity, and net hydrodynamic force is measured by model test;
Due to being participated in during test without gate, also participated in without net hydrodynamic force, therefore the value of thrust of experimental rig are as follows:
f1The hoisting capacity F of=selection headstock gear1The net hydrodynamic force of-G-;
B, experimental rig value of thrust is set as f1, tested according to (M1) method, record pulling force graph;
C, select maximum pull as experimental rig value of thrust f on the pulling force graph recorded1Repeat step b;
D, when the pulling force graph maximum pull value difference recorded twice is less than 3%, terminate test, take the drawing finally measured twice Maximum value is as frictional force f in power graphend
E, formula μ=f is utilizedend/ N calculates coefficient of friction;
F, headstock gear capacity=fendThe net hydrodynamic force of+G+.
CN201510003986.2A 2015-01-05 2015-01-05 A kind of gate support experiment of friction performance device and method calculating force of opening and closing Active CN104612099B (en)

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Publication number Priority date Publication date Assignee Title
CN2136320Y (en) * 1992-08-07 1993-06-16 许昌继电器厂 Automatic opening device for rolling shutter door
CN102169072A (en) * 2011-01-27 2011-08-31 黄河水利水电开发总公司 Test device for simulating and testing abrasion resistance of coating
CN103362104A (en) * 2012-04-08 2013-10-23 苏振荣 Translational start-stop plane gate system for ship lock

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