CN114047069A - Tensile experimental apparatus of unilateral breach under marine steel stress control - Google Patents
Tensile experimental apparatus of unilateral breach under marine steel stress control Download PDFInfo
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 83
- 239000010959 steel Substances 0.000 title claims abstract description 83
- 238000009864 tensile test Methods 0.000 claims abstract description 46
- 230000001681 protective effect Effects 0.000 claims abstract description 38
- 238000002474 experimental method Methods 0.000 claims abstract description 33
- 238000003825 pressing Methods 0.000 claims abstract description 30
- 238000004891 communication Methods 0.000 claims description 18
- 238000003860 storage Methods 0.000 claims description 13
- 230000000694 effects Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 22
- 238000012360 testing method Methods 0.000 abstract description 16
- 238000010586 diagram Methods 0.000 description 9
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000012780 transparent material Substances 0.000 description 3
- 230000009172 bursting Effects 0.000 description 2
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/26—Investigating twisting or coiling properties
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/025—Geometry of the test
- G01N2203/0258—Non axial, i.e. the forces not being applied along an axis of symmetry of the specimen
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
- G01N2203/0282—Two dimensional, e.g. tapes, webs, sheets, strips, disks or membranes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0641—Indicating or recording means; Sensing means using optical, X-ray, ultraviolet, infrared or similar detectors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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Abstract
The invention discloses a tensile experimental device of a unilateral notch under the stress control of marine steel, which comprises a base and a control unit, wherein the base is provided with a notch opening; the upper part of the base is provided with a tensile experiment mechanism and a protection assembly, the tensile experiment mechanism is electrically connected with the control unit, and the tensile experiment mechanism is used for carrying out tensile experiment test on steel stress of the unilateral notch of the ship steel plate; the protective assembly is used for surrounding the tensile experiment mechanism; the stretching experiment mechanism comprises an inverted L-shaped fixing plate, a portal frame, a first electric cylinder, a force measuring sensor, a square pull rod, an upper U-shaped clamping plate, an upper pressing plate, an upper electric push rod, a fixing seat, a supporting rod, a lower U-shaped clamping plate, a lower pressing plate and a lower electric push rod. The tensile experimental device for the unilateral notch under the stress control of the marine steel can effectively prevent experimenters from being damaged when the marine steel plate is accidentally cracked in the experimental process, and can meet the requirement of tensile test on the marine steel plate needing torsion test in the tensile test process.
Description
Technical Field
The invention relates to the technical field of shipbuilding, in particular to a single-side notch tensile experimental device under marine steel stress control.
Background
With the rapid development of the marine vessel industry, the requirements for the performance of the structural members of the vessels are more and more strict, the main manufacturing materials of the vessels or the vessels are steel materials, such as EH36 marine vessel steel, the mechanical properties of the steel materials directly relate to the performance and the quality of the vessels, and the marine vessel steel is usually subjected to continuous external force of seawater in the marine service process and inevitably suffers from the loss of tension, compression, torsion, fatigue and the like. At present, the mechanical properties of the marine steel are generally detected through a position extension experiment to judge whether the steel can be used in actual marine engineering.
The potential safety hazard that an experimenter is accidentally cracked and burst during the process of testing a workpiece exists in the conventional marine steel stress tensile experimental device; in addition, the existing tensile test device can only carry out tensile test on the workpiece, cannot apply torsional force to the workpiece in the tensile test process, and cannot meet the requirement of carrying out tensile test on the ship steel plate which needs torsional test in the tensile test process.
Therefore, the single-side notch tensile experiment device under the control of the marine steel stress is provided.
Disclosure of Invention
The technical task of the invention is to provide a tensile test device with a single-side notch under the control of marine steel stress, which can effectively prevent experimenters from being damaged when a marine steel plate is accidentally cracked in the test process, and can meet the requirement of tensile test testing on the marine steel plate needing torsion test in the tensile test process, so as to solve the problems.
The technical scheme of the invention is realized as follows:
a tensile experimental apparatus of unilateral breach under marine steel stress control, including base and control unit;
the tensile experiment mechanism is electrically connected with the control unit and used for carrying out tensile experiment test on steel stress of a single-side notch of the ship steel plate;
wherein the protective component is used for surrounding the tensile experiment mechanism;
the control unit is used for controlling the control unit to work.
Preferably, the tensile test mechanism comprises an inverted-L-shaped fixed plate, a portal frame, a first electric cylinder, a force measuring sensor, a square pull rod, an upper U-shaped clamp plate, an upper pressure plate, an upper electric push rod, a fixed seat, a support rod, a lower U-shaped clamp plate, a lower pressure plate and a lower electric push rod, wherein the inverted-L-shaped fixed plate is vertically and fixedly arranged on the upper portion of the base, the portal frame is vertically and fixedly arranged at the top of the inverted-L-shaped fixed plate, the first electric cylinder is vertically and fixedly arranged at the bottom of the inner top wall of the portal frame, the force measuring sensor is fixedly arranged at the telescopic end portion of the first electric cylinder, the square pull rod is vertically and slidably arranged on the top wall of the inverted-L-shaped fixed plate, the upper end of the square pull rod is fixedly connected with the force measuring portion at the bottom of the force measuring sensor, the upper U-shaped clamp plate is fixedly arranged at the bottom end portion of the square pull rod, the upper pressure plate is movably arranged on the inner side of the upper U-shaped clamping plate, the upper electric push rod is fixedly arranged on the outer side wall of the upper U-shaped clamping plate, the telescopic end of the upper electric push rod movably extends into the inner side of the upper U-shaped clamping plate and is fixedly connected with one side face of the upper pressure plate, the fixing seat is fixedly arranged on the upper portion of the base, the supporting rod is vertically and rotatably arranged on the top wall of the fixing seat, the lower U-shaped clamping plate is fixedly arranged at the upper end portion of the supporting rod, the lower pressure plate is movably arranged on the inner side of the lower U-shaped clamping plate, the lower electric push rod is fixedly arranged on the outer side wall of the lower U-shaped clamping plate, and the telescopic end of the lower electric push rod movably extends into the inner side of the lower U-shaped clamping plate and is fixedly connected with one side face of the lower pressure plate.
Preferably, tensile experimental mechanism still includes gear, two uide bushings, sharp rack and second electric jar, gear revolve installs the inside of fixing base, two the equal fixed mounting of uide bushing is in the upper portion of base, sharp rack slidable mounting is two in the uide bushing, just sharp rack with gear intermeshing, second electric jar fixed mounting be in the upper portion of base, just the flexible end of second electric jar with the one end fixed connection of sharp rack.
Preferably, the bracing piece pass through antifriction bearing with the roof of fixing base is rotated and is connected, the lower surface of gear with the upper surface of base is laminated mutually and is set up, just the upper surface of gear with the laminating of the interior roof of fixing base mutually sets up.
Preferably, the inner side wall of the upper U-shaped clamping plate, the side surface of the upper pressing plate, the inner side wall of the lower U-shaped clamping plate and the side surface of the lower pressing plate are all provided with anti-skid grains.
Preferably, the protection component comprises two sliding rods, a protection cover, a side plate and a handle, the two sliding rods are fixedly arranged at the upper part of the base through an assembly block, the two slide bars are symmetrically distributed on two sides of the inverted L-shaped fixing plate, the bottom of the protective housing is fixedly provided with a sliding sleeve, the protective housing is slidably arranged on the two slide bars through the sliding sleeve, and one side surface of the protective cover casing facing the side plate is of an opening structure, the sliding sleeve is sleeved on the sliding rod in a sliding manner, the side plate is vertically and fixedly arranged at the upper part of the assembling block, and when the side plate is jointed with one side surface of the protective cover casing which is an opening structure, an accommodating space is formed between the side plate and the protective cover casing, the accommodating space completely surrounds the tensile experiment mechanism, and the handle is fixedly installed on the outer side surface of the protective housing.
Preferably, the control unit comprises a control box, a touch display screen and a controller, the control box is fixedly mounted on the outer side surface of the protective housing, the touch display screen is fixedly mounted on the outer side surface of the control box, the controller is fixedly mounted inside the control box, and the controller is electrically connected with the first electric cylinder, the force measuring sensor, the upper electric push rod, the lower electric push rod, the second electric cylinder and the touch display screen respectively.
Preferably, the control unit comprises a buzzer, a reset button and a status indicator lamp, the buzzer, the reset button and the status indicator lamp are fixedly mounted on the outer side surface of the control box, and the buzzer, the reset button and the status indicator lamp are electrically connected with the controller.
As preferred, the control unit includes cloud platform camera, communication module and storage module, cloud platform camera fixed mounting be in on the inside wall of protective housing, communication module and the equal fixed mounting of storage module is in the inside of control box, just communication module and storage module with cloud platform camera all with controller electric connection.
Preferably, the protection component further comprises a position locking electric push rod, a top plate and a control button, the position locking electric push rod is vertically and fixedly installed on the inner side wall of the protection casing, the position locking electric push rod is close to the bottom of the protection casing, the top plate is fixedly installed at the telescopic end part of the position locking electric push rod, the control button is fixedly installed on the outer side surface of the protection casing, the control button is close to the handle, and the control button and the position locking electric push rod are electrically connected with the controller.
Compared with the prior art, the invention has the advantages and positive effects that:
1. the marine steel stress control lower single-side notch tensile experiment device provided by the invention consists of a base, a tensile experiment mechanism, a protection assembly and a control unit, the safety of the device can be effectively improved under the action of the protection assembly, and experimenters can be effectively prevented from being damaged when a marine steel plate is accidentally cracked in the experiment process; the automation degree of the device can be effectively improved under the action of the control unit, so that the working intensity of experimenters is reduced, and the experimental efficiency can be improved;
2. the tensile experiment device for the ship steel with the unilateral notch under stress control provided by the invention is characterized in that the tensile experiment mechanism is also provided with a gear, two guide sleeves, a linear rack, a second electric cylinder and other structures, the gear, the two guide sleeves, the linear rack and the second electric cylinder are mutually matched to drive the lower U-shaped clamping plate to rotate and apply torsional force to the ship steel plate, so that the problem that the conventional tensile experiment device can only perform tensile test on a workpiece and cannot apply torsional force to the workpiece in the tensile test process can be solved, and the device can meet the requirement of performing tensile test on the ship steel plate which needs torsional test simultaneously in the tensile test process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a single-side notch tensile experimental device under marine steel stress control according to an embodiment of the invention;
FIG. 2 is a schematic structural diagram of another view of a single-side notch tensile testing apparatus under marine steel stress control according to an embodiment of the present invention;
FIG. 3 is a second schematic structural diagram of another view of the single-side notch tensile testing apparatus under the stress control of the marine steel according to the embodiment of the invention;
FIG. 4 is a schematic partial structural diagram I of a single-side notch tensile experimental device under marine steel stress control according to an embodiment of the invention;
FIG. 5 is a schematic partial structural diagram II of a single-side notch tensile experimental device under marine steel stress control according to an embodiment of the invention;
FIG. 6 is a schematic view of a partial structure of a single-side notch tensile test device under marine steel stress control according to an embodiment of the invention;
FIG. 7 is a schematic partial structural diagram of a single-side notch tensile test device under marine steel stress control according to an embodiment of the invention;
FIG. 8 is an enlarged schematic view of the detail view A of FIG. 7;
FIG. 9 is a schematic partial structural diagram I of a single-side notch tensile experimental apparatus under marine steel stress control according to an embodiment of the present invention;
FIG. 10 is a first schematic structural diagram of a control unit of the single-side notch tensile testing apparatus under marine steel stress control according to an embodiment of the present invention;
fig. 11 is a second structural schematic diagram of a control unit of the single-side notch tensile testing apparatus under marine steel stress control according to the embodiment of the invention.
In the figure:
1. a base;
2. a tensile test mechanism; 201. an inverted L-shaped fixing plate; 202. a gantry; 203. a first electric cylinder; 204. a force sensor; 205. a square pull rod; 206. an upper U-shaped clamping plate; 207. an electric push rod is arranged; 208. an upper compression plate; 209. a fixed seat; 210. a lower U-shaped splint; 211. a lower compression plate; 212. a lower electric push rod; 213. a gear; 214. a guide sleeve; 215. a linear rack; 216. a second electric cylinder; 217. a support bar;
3. a guard assembly; 301. a slide bar; 302. a protective housing; 303. assembling the block; 304. a sliding sleeve; 305. a side plate; 306. a handle; 307. a position locking electric push rod; 308. a top plate; 309. a control button;
4. a control unit; 401. a control box; 402. a controller; 403. a communication module; 404. a storage module; 405. a touch display screen; 406. a status indicator light; 407. a reset button; 408. a buzzer; 409. cloud platform camera.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
The invention is further described with reference to the accompanying figures 1-11 and the specific embodiments.
As shown in fig. 1, the single-side notch tensile test device under marine steel stress control according to the embodiment of the invention comprises a base 1 and a control unit 4;
the upper part of the base 1 is provided with a tensile experiment mechanism 2 and a protection component 3, the tensile experiment mechanism 2 is electrically connected with a control unit 4, and the tensile experiment mechanism 2 is used for carrying out tensile experiment test on steel stress of a single-side notch of the marine steel plate;
wherein, protection component 3 is used for surrounding tensile experimental mechanism 2 to prevent that the marine steel sheet of test from bursting apart the experimenter when accidental bursting apart, thereby improve the security of the device.
Wherein, the control unit 4 is used for the work of control unit 4, can improve the device's degree of automation to reduce experimenter's working strength, can improve experimental efficiency simultaneously.
The ship steel stress control lower unilateral notch tensile experiment device adopting the technical scheme is composed of a base 1, a tensile experiment mechanism 2, a protection component 3 and a control unit 4, the safety of the device can be effectively improved under the action of the protection component 3, and experimenters can be effectively prevented from being damaged when a ship steel plate is accidentally cracked in the experiment process; can effectively improve the degree of automation of the device under the effect of the control unit 4 to reduce experimenter's working strength, can improve experimental efficiency simultaneously.
Specifically, as shown in fig. 1-2 and 4-6, in the present embodiment, the tensile testing mechanism 2 includes an inverted L-shaped fixing plate 201, a gantry 202, a first electric cylinder 203, a load cell 204, a square pull rod 205, an upper U-shaped clamping plate 206, an upper pressing plate 208, an upper electric push rod 207, a fixing seat 209, a support rod 217, a lower U-shaped clamping plate 210, a lower pressing plate 211 and a lower electric push rod 212, the inverted L-shaped fixing plate 201 is vertically and fixedly installed on the upper portion of the base 1, the gantry 202 is vertically and fixedly installed on the top of the inverted L-shaped fixing plate 201, the first electric cylinder 203 is vertically and fixedly installed on the bottom of the inner top wall of the gantry 202, the load cell 204 is fixedly installed on the telescopic end portion of the first electric cylinder 203, the square pull rod 205 is vertically and slidably installed on the top wall of the inverted L-shaped fixing plate 201, and the upper end of the square pull rod 205 is fixedly connected with the bottom load cell 204, the upper U-shaped clamping plate 206 is fixedly arranged at the bottom end part of the square pull rod 205, the upper pressing plate 208 is movably arranged at the inner side of the upper U-shaped clamping plate 206, the upper electric push rod 207 is fixedly arranged on the outer side wall of the upper U-shaped clamping plate 206, the telescopic end of the upper electric push rod 207 movably extends into the inner side of the upper U-shaped clamping plate 206 and is fixedly connected with one side face of the upper pressing plate 208, the fixed seat 209 is fixedly arranged at the upper part of the base 1, the supporting rod 217 is vertically and rotatably arranged on the top wall of the fixed seat 209, the lower U-shaped clamping plate 210 is fixedly arranged at the upper end part of the supporting rod 217, the lower pressing plate 211 is movably arranged at the inner side of the lower U-shaped clamping plate 210, the lower electric push rod 212 is fixedly arranged on the outer side wall of the lower U-shaped clamping plate 210, and the telescopic end of the lower electric push rod 212 movably extends into the inner side of the lower U-shaped clamping plate 210 and is fixedly connected with one side face of the lower pressing plate 211.
The tensile experiment mechanism 2 arranged by adopting the technical scheme mainly comprises an inverted L-shaped fixing plate 201, a portal frame 202, a first electric cylinder 203, a load cell 204, a square pull rod 205, an upper U-shaped clamping plate 206, an upper pressing plate 208, an upper electric push rod 207, a fixed seat 209, a supporting rod 217, a lower U-shaped clamping plate 210, a lower pressing plate 211 and a lower electric push rod 212, when the tensile experiment mechanism is used, a marine steel plate to be tested with a single-side notch is placed between the upper U-shaped clamping plate 206 and the lower U-shaped clamping plate 210, then the upper pressing plate 208 is driven by the upper electric push rod 207, the lower pressing plate 211 is driven by the lower electric push rod 212 to clamp the marine steel plate, so that the marine steel plate can be firmly fixed between the upper U-shaped clamping plate 206 and the lower U-shaped clamping plate 210, then the square pull rod 205 is driven by the first electric cylinder 203 to pull the upper U-shaped clamping plate 206 to move upwards to stretch the marine steel plate, and the load cell 204 is used for detecting tensile force, when the tensile strength detected by the force sensor 204 meets the experimental requirements, the steel plate for the ship still remains intact, which indicates that the quality of the steel plate for the ship is qualified, otherwise, the steel plate for the ship is not qualified;
when the tested marine steel plate is dismounted, the upper electric push rod 207 is controlled to drive the upper pressing plate 208, and the lower electric push rod 212 drives the lower pressing plate 211 to loosen the marine steel plate, so that the tested marine steel plate can be dismounted.
Specifically, as shown in fig. 1-2 and 4-5, in this embodiment, the tensile testing mechanism 2 further includes a gear 213, two guide sleeves 214, a linear rack 215, and a second electric cylinder 216, the gear 213 is rotatably installed inside the fixing base 209, an upper portion of the gear 213 is fixedly connected to a bottom end of the supporting rod 217, the two guide sleeves 214 are both fixedly installed on an upper portion of the base 1, the linear rack 215 is slidably installed in the two guide sleeves 214, the linear rack 215 is engaged with the gear 213, the second electric cylinder 216 is fixedly installed on an upper portion of the base 1, and a telescopic end of the second electric cylinder 216 is fixedly connected to one end of the linear rack 215.
The tensile test mechanism 2 arranged by adopting the technical scheme also comprises a gear 213, two guide sleeves 214, a linear rack 215, a second electric cylinder 216 and other structures, the gear 213, the two guide sleeves 214, the linear rack 215 and the second electric cylinder 216 are matched with each other to drive the lower U-shaped clamping plate 210 to rotate and apply torsional force to the marine steel plate, so that the problem that the conventional tensile test device can only perform tensile test on a workpiece and cannot apply torsional force to the workpiece in the tensile test process can be solved, the device can meet the requirement of performing tensile test on the marine steel plate which needs torsional test simultaneously in the tensile test process, and particularly when the device is used, the second electric cylinder 216 drives the linear rack 215 to do linear motion in the two guide sleeves 214, and the linear rack 215 can drive the gear 213 to rotate in the linear motion process, the gear 213 can drive the support rod 217 to rotate, and the support rod 217 can drive the support rod 217 to rotate, so as to apply a torsional force to the marine steel plate.
Specifically, as shown in fig. 5, in the present embodiment, the supporting rod 217 is rotatably connected to the top wall of the fixing base 209 through a rolling bearing, the lower surface of the gear 213 is attached to the upper surface of the base 1, and the upper surface of the gear 213 is attached to the inner top wall of the fixing base 209.
Through adopting above-mentioned technical scheme for bracing piece 217 can rotate on fixing base 209 steadily, and the lower surface of gear 213 is laminated with the upper surface of base 1 mutually simultaneously, and the upper surface of gear 213 and the interior top wall of fixing base 209 are laminated mutually, makes gear 213 can carry on spacingly to bracing piece 217, can prevent that bracing piece 217 from upwards or the downstream leads to antifriction bearing to damage, thereby guarantees antifriction bearing's life.
Specifically, as shown in fig. 5 to 6, in the present embodiment, the inner sidewall of the upper U-shaped clamp plate 206, the side surface of the upper pressing plate 208, the inner sidewall of the lower U-shaped clamp plate 210, and the side surface of the lower pressing plate 211 are all provided with anti-slip threads.
By adopting the technical scheme, the friction coefficients of the upper U-shaped clamping plate 206, the upper pressing plate 208, the lower U-shaped clamping plate 210 and the lower pressing plate 211 can be effectively increased by the arranged anti-slip threads, so that the fixing effect of the upper U-shaped clamping plate 206 and the lower U-shaped clamping plate 210 on the marine steel plate is better, and the experimental test can be smoothly carried out.
Specifically, as shown in fig. 1-3 and fig. 7-8, in the present embodiment, the protection assembly 3 includes two sliding rods 301, a protection casing 302, a side plate 305 and a handle 306, the two sliding rods 301 are both fixedly mounted on the upper portion of the base 1 through a fitting block 303, the two sliding rods 301 are symmetrically distributed on two sides of the inverted L-shaped fixing plate 201, the sliding sleeve 304 is fixedly installed at the bottom of the protective housing 302, the protective housing 302 is slidably installed on the two sliding rods 301 through the sliding sleeve 304, and one side of the protective casing 302 facing the side plate 305 is an open structure, the sliding sleeve 304 is slidably sleeved on the sliding rod 301, the side plate 305 is vertically and fixedly installed on the upper part of the assembling block 303, when the side plate 305 is attached to one side of the protective housing 302, the side plate 305 and the protective housing 302 form an accommodating space therebetween, the accommodating space completely surrounds the tensile testing mechanism 2, and the handle 306 is fixedly mounted on the outer side of the protective housing 302.
The protection component 3 set by the technical scheme mainly comprises two sliding rods 301, a protection cover shell 302, a side plate 305 and a handle 306, when the protection component is used, the protection cover shell 302 is pulled to the side plate 305 through the handle 306 to move so that an accommodating space can be formed between the side plate 305 and the protection cover shell 302, and the tensile experiment mechanism 2 is just completely positioned in the accommodating space, so that the experimental personnel can be prevented from being burst even if the marine steel plate is burst accidentally in the experiment process.
In order to observe the working state of the tensile testing mechanism 2 conveniently, the protective housing 302 is made of a transparent material, and the transparent material can be a plastic transparent material.
Specifically, as shown in fig. 1 to 8 and fig. 10 to 11, in this embodiment, the control unit 4 includes a control box 401, a touch display screen 405, and a controller 402, the control box 401 is fixedly installed on an outer side surface of the protective housing 302, the touch display screen 405 is fixedly installed on an outer side surface of the control box 401, the controller 402 is fixedly installed inside the control box 401, and the controller 402 is electrically connected to the first electric cylinder 203, the load cell 204, the upper electric push rod 207, the lower electric push rod 212, the second electric cylinder 216, and the touch display screen 405 respectively.
The control unit 4 set by the technical scheme mainly comprises a control box 401, a touch display screen 405 and a controller 402, when in use, the touch display screen 405 is used for displaying the working states of the controller 402, the first electric cylinder 203, the load cell 204, the upper electric push rod 207, the lower electric push rod 212 and the second electric cylinder 216, and is used for inputting control instructions and setting data, the controller 402 is used for controlling the first electric cylinder 203, the upper electric push rod 207, the lower electric push rod 212 and the second electric cylinder 216 to work, the load cell 204 uploads the detected tensile force and torsional force data to the controller 402, and the controller 402 analyzes and processes the received tensile force data and displays the data through the display controller 402 for reference of experimenters.
It should be noted that the controller 402 may be a PLC controller.
Specifically, as shown in fig. 1-2 and 10-11, in the present embodiment, the control unit 4 includes a buzzer 408, a reset button 407, and a status indicator 406, the buzzer 408, the reset button 407, and the status indicator 406 are all fixedly mounted on an outer side surface of the control box 401, and the buzzer 408, the reset button 407, and the status indicator 406 are all electrically connected to the controller 402.
The buzzer 408 arranged by adopting the technical scheme is used for giving an alarm to inform experimenters of timely repairing the device when the device works abnormally, the reset button 407 is used for inputting a reset signal to the controller 402, the controller 402 receives the reset signal and then controls the buzzer 408 to stop alarming, the state indicator lamp 406 is used for displaying the working state of the device, when the state indicator lamp 406 is turned on green, the device is normally operated, and when the state indicator lamp 406 is turned on red, the device is abnormally operated.
Specifically, as shown in fig. 1-2 and 10-11, in this embodiment, the control unit 4 includes a pan/tilt head camera 409, a communication module 403, and a storage module 404, the pan/tilt head camera 409 is fixedly mounted on an inner side wall of the protective housing 302, both the communication module 403 and the storage module 404 are fixedly mounted inside the control box 401, and both the communication module 403, the storage module 404, and the pan/tilt head camera 409 are electrically connected to the controller 402.
The control unit 4 arranged by adopting the technical scheme is also provided with a holder camera 409, a communication module 403 and a storage module 404, wherein the holder camera 409 is used for recording the working process of the tensile experiment mechanism 2, so that the test condition of the marine steel plate can be conveniently recorded, and the quality problem of the marine steel plate can be conveniently analyzed in the later period; the communication module 403 enables the device to have a communication function, so as to achieve the purpose of remotely controlling the device; the storage module 404 is used for storing data generated by the pan-tilt camera 409.
The communication module 403 includes at least one of a wireless network card, a Lora communication module, an NB-iot communication module, a 4G communication module, and a 5G communication module;
the storage module 404 is a mechanical hard disk or a solid state hard disk.
Specifically, as shown in fig. 1-2 and 8-9, in the present embodiment, the protection assembly 3 further includes a position-locking electric push rod 307, a top plate 308 and a control button 309, the position-locking electric push rod 307 is vertically and fixedly installed on an inner side wall of the protection casing 302, the position-locking electric push rod 307 is disposed near a bottom of the protection casing 302, the top plate 308 is fixedly installed at an end portion of a telescopic end of the position-locking electric push rod 307, the control button 309 is fixedly installed on an outer side surface of the protection casing 302, the control button 309 is disposed near the handle 306, and both the control button 309 and the position-locking electric push rod 307 are electrically connected to the controller 402.
The position locking electric push rod 307, the top plate 308 and the control button 309 which are arranged by adopting the technical scheme are used for locking the position of the protective enclosure 302, when the position of the protective enclosure 302 needs to be locked, the control button 309 is pressed, the control button 309 sends a signal to the controller 402, the controller 402 receives the signal and then controls the position locking electric push rod 307 to drive the top plate 308 to be tightly pressed against the upper part of the base 1, so that the aim of locking the position of the protective enclosure 302 is achieved, when the position of the protective enclosure 302 needs to be unlocked, the control button 309 is pressed again, the control button 309 sends a signal to the controller 402, and the controller 402 receives the signal and then controls the position locking electric push rod 307 to drive the top plate 308 to be away from the upper part of the base 1, so that the aim of unlocking the position of the protective enclosure 302 is achieved.
For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.
In the actual application of the method, the device is used,
the first step is as follows: the protective cover 302 is pulled open by the handle 306, then the marine steel plate with a single-side notch to be tested is placed between the upper U-shaped clamping plate 206 and the lower U-shaped clamping plate 210, the protective cover 302 is closed by the handle 306, then the control button 309 is pressed, the control button 309 sends a signal to the controller 402, and the controller 402 receives the signal and then controls the position locking electric push rod 307 to drive the top plate 308 to be tightly pressed on the upper part of the base 1, so that the aim of locking the position of the protective cover 302 is fulfilled;
the second step is that: then the upper electric push rod 207 is controlled by the touch display screen 405 to drive the upper pressing plate 208, the lower electric push rod 212 drives the lower pressing plate 211 to clamp the marine steel plate, the marine steel plate is firmly fixed between the upper U-shaped clamping plate 206 and the lower U-shaped clamping plate 210, then the first electric cylinder 203 is controlled by the touch display screen 405 to drive the square pull rod 205 to pull the upper U-shaped clamping plate 206 to move upwards to stretch the marine steel plate, the force sensor 204 uploads the detected stretching force data to the controller 402, the controller 402 analyzes and processes the received stretching force data and displays the data through the display controller 402 for reference of an experimenter, when the stretching force detected by the force sensor 204 meets the experimental requirements, the marine steel plate still keeps intact, which indicates that the quality of the marine steel plate is qualified, or else, the marine steel plate is not qualified;
the third step: the touch display screen 405 controls the second electric cylinder 216 to work, the second electric cylinder 216 drives the linear rack 215 to do linear motion in the two guide sleeves 214, the linear rack 215 can drive the gear 213 to rotate in the process of doing linear motion, the gear 213 drives the supporting rod 217 to rotate, the supporting rod 217 drives the supporting rod 217 to rotate, torsional force is applied to the marine steel plate, after the test is finished, the touch display screen 405 controls the upper electric push rod 207 to drive the upper pressing plate 208 and the lower electric push rod 212 to drive the lower pressing plate 211 to loosen the marine steel plate.
The second step and the third step can be continuously and automatically completed under the control of the controller 402, so that the experimental testing efficiency is effectively improved.
The present invention can be easily implemented by those skilled in the art from the above detailed description. It should be understood, however, that the intention is not to limit the invention to the particular embodiments described. On the basis of the disclosed embodiments, a person skilled in the art can combine different technical features at will, thereby implementing different technical solutions.
Claims (10)
1. A tensile experimental apparatus of unilateral breach under marine steel stress control, characterized by, including base (1) and control unit (4);
the tensile test mechanism (2) is electrically connected with the control unit (4), and the tensile test mechanism (2) is used for carrying out tensile test on steel stress of a single-side notch of the ship steel plate;
wherein the protective assembly (3) is used for surrounding the tensile experiment mechanism (2);
the control unit (4) is used for controlling the control unit (4) to work.
2. The marine steel stress control lower single-side notch tensile test device according to claim 1, wherein the tensile test mechanism (2) comprises an inverted L-shaped fixing plate (201), a portal frame (202), a first electric cylinder (203), a load cell (204), a square pull rod (205), an upper U-shaped clamping plate (206), an upper pressing plate (208), an upper electric push rod (207), a fixing seat (209), a supporting rod (217), a lower U-shaped clamping plate (210), a lower pressing plate (211) and a lower electric push rod (212), the inverted L-shaped fixing plate (201) is vertically and fixedly installed on the upper portion of the base (1), the portal frame (202) is vertically and fixedly installed on the top of the inverted L-shaped fixing plate (201), the first electric cylinder (203) is vertically and fixedly installed on the bottom of the inner top wall of the portal frame (202), the force measuring device is characterized in that the force measuring sensor (204) is fixedly installed at the end part of the telescopic end of the first electric cylinder (203), the square pull rod (205) is vertically and slidably installed on the top wall of the inverted L-shaped fixing plate (201), the upper end of the square pull rod (205) is fixedly connected with the force measuring part at the bottom of the force measuring sensor (204), the upper U-shaped clamping plate (206) is fixedly installed at the end part of the bottom end of the square pull rod (205), the upper pressing plate (208) is movably installed on the inner side of the upper U-shaped clamping plate (206), the upper electric push rod (207) is fixedly installed on the outer side wall of the upper U-shaped clamping plate (206), the telescopic end of the upper electric push rod (207) movably extends into the inner side of the upper U-shaped clamping plate (206) and is fixedly connected with one side face of the upper pressing plate (208), and the fixing seat (209) is fixedly installed at the upper part of the base (1), the utility model discloses a set up the bracing piece, including bracing piece (217), U-shaped splint (210), lower electric putter (212) and lower electric putter (212) are fixed mounting on the lateral wall of lower U-shaped splint (210), just the flexible end activity of lower electric putter (212) stretches into the inboard of lower U-shaped splint (210) and with a side fixed connection of lower pinch plate (211).
3. The marine steel stress control single-side notch tensile test device according to claim 2, wherein the tensile test mechanism (2) further comprises a gear (213), two guide sleeves (214), a linear rack (215), and a second electric cylinder (216), the gear (213) is rotatably mounted inside the fixed base (209), the two guide sleeves (214) are both fixedly mounted on the upper portion of the base (1), the linear rack (215) is slidably mounted in the two guide sleeves (214), the linear rack (215) and the gear (213) are engaged with each other, the second electric cylinder (216) is fixedly mounted on the upper portion of the base (1), and the telescopic end of the second electric cylinder (216) is fixedly connected with one end of the linear rack (215).
4. The marine steel stress control lower unilateral notch tensile test device according to claim 3, characterized in that the support rod (217) is rotatably connected with the top wall of the fixed seat (209) through a rolling bearing, the lower surface of the gear (213) is attached to the upper surface of the base (1), and the upper surface of the gear (213) is attached to the inner top wall of the fixed seat (209).
5. The marine steel stress control lower single-side notch tensile test device according to claim 3, wherein anti-slip threads are formed on the inner side wall of the upper U-shaped clamping plate (206), the side surface of the upper pressing plate (208), the inner side wall of the lower U-shaped clamping plate (210) and the side surface of the lower pressing plate (211).
6. The marine steel stress control lower single-edge notch tensile test device according to claim 3, wherein the protection assembly (3) comprises two sliding rods (301), a protection cover (302), a side plate (305) and a handle (306), the two sliding rods (301) are fixedly mounted on the upper portion of the base (1) through an assembling block (303), the two sliding rods (301) are symmetrically distributed on two sides of the inverted L-shaped fixing plate (201), a sliding sleeve (304) is fixedly mounted at the bottom of the protection cover (302), the protection cover (302) is slidably mounted on the two sliding rods (301) through the sliding sleeve (304), one side of the protection cover (302) facing the side plate (305) is of an open structure, the sliding sleeve (304) is slidably sleeved on the sliding rods (301), the side plate (305) is vertically and fixedly mounted on the upper portion of the assembling block (303), when the side plate (305) is attached to one side face of the protective housing (302) in an opening structure, an accommodating space is formed between the side plate (305) and the protective housing (302), the accommodating space completely surrounds the tensile experiment mechanism (2), and the handle (306) is fixedly installed on the outer side face of the protective housing (302).
7. The marine steel stress control lower unilateral notch tensile test device according to claim 6, wherein the control unit (4) comprises a control box (401), a touch display screen (405) and a controller (402), the control box (401) is fixedly installed on the outer side surface of the protective housing (302), the touch display screen (405) is fixedly installed on the outer side surface of the control box (401), the controller (402) is fixedly installed inside the control box (401), and the controller (402) is electrically connected with the first electric cylinder (203), the load cell (204), the upper electric push rod (207), the lower electric push rod (212), the second electric cylinder (216) and the touch display screen (405) respectively.
8. The marine steel stress control lower single-side notch tensile test device according to claim 7, wherein the control unit (4) comprises a buzzer (408), a reset button (407) and a status indicator lamp (406), the buzzer (408), the reset button (407) and the status indicator lamp (406) are all fixedly mounted on the outer side surface of the control box (401), and the buzzer (408), the reset button (407) and the status indicator lamp (406) are all electrically connected with the controller (402).
9. The marine steel stress control lower unilateral notch tensile experiment device according to claim 8, wherein the control unit (4) comprises a pan-tilt camera (409), a communication module (403) and a storage module (404), the pan-tilt camera (409) is fixedly installed on the inner side wall of the protective housing (302), the communication module (403) and the storage module (404) are both fixedly installed inside the control box (401), and the communication module (403), the storage module (404) and the pan-tilt camera (409) are both electrically connected with the controller (402).
10. The marine steel stress control lower single-side notch tensile test device according to claim 9, characterized in that the protective component (3) also comprises a position locking electric push rod (307), a top plate (308) and a control button (309), the position locking electric push rod (307) is vertically and fixedly installed on the inner side wall of the protective casing (302), and the position locking electric push rod (307) is arranged near the bottom of the protective casing (302), the top plate (308) is fixedly arranged at the end part of the telescopic end of the position locking electric push rod (307), the control button (309) is fixedly mounted on the outer side of the protective casing (302), the control button (309) is arranged close to the handle (306), and the control button (309) and the position locking electric push rod (307) are electrically connected with the controller (402).
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