CN111487154A - High-temperature erosion experimental device - Google Patents

High-temperature erosion experimental device Download PDF

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Publication number
CN111487154A
CN111487154A CN202010398011.5A CN202010398011A CN111487154A CN 111487154 A CN111487154 A CN 111487154A CN 202010398011 A CN202010398011 A CN 202010398011A CN 111487154 A CN111487154 A CN 111487154A
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box
box body
fixed
horizontal
plate
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CN111487154B (en
Inventor
郭华锋
王彦淞
朱聪聪
于萍
李龙海
赵恩兰
陆兴华
赵朝俊
朱可欣
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Xuzhou University of Technology
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Xuzhou University of Technology
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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
    • G01N3/56—Investigating resistance to wear or abrasion
    • G01N3/567—Investigating resistance to wear or abrasion by submitting the specimen to the action of a fluid or of a fluidised material, e.g. cavitation, jet abrasion
    • 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
    • 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
    • G01N3/04—Chucks
    • 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
    • G01N3/56—Investigating resistance to wear or abrasion
    • G01N3/565—Investigating resistance to wear or abrasion of granular or particulate material
    • 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
    • G01N2203/0005—Repeated or cyclic
    • 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
    • G01N2203/003—Generation of the force
    • G01N2203/0042—Pneumatic or hydraulic means
    • G01N2203/0048—Hydraulic means
    • 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
    • G01N2203/022—Environment of the test
    • G01N2203/0222—Temperature
    • G01N2203/0226—High temperature; Heating means
    • 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
    • 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
    • G01N2203/0682—Spatial dimension, e.g. length, area, angle
    • 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
    • G01N2203/0694—Temperature

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)

Abstract

The invention discloses a high-temperature erosion experimental device, which belongs to the technical field of erosion experiments on surfaces of parts and coatings, and is characterized in that a C51 single chip microcomputer is used as a core processor, a touch L ED display screen is used as an input end and an operation end display window, so that control over two stepping motors, an air switch, a laser range finder, an infrared thermometer and a heating plate can be realized, and further, the erosion distance, the erosion angle, the erosion time, the erosion temperature, the erosion gas pressure and the heating box temperature of a workpiece can be controlled.

Description

High-temperature erosion experimental device
Technical Field
The invention relates to the field of erosion experiments, in particular to a high-temperature erosion experiment device for testing erosion resistance of surfaces of workpieces and coatings.
Background
At present, the erosion phenomenon widely exists in many fields such as machinery, aerospace and the like, and the erosion phenomenon becomes one of important reasons of material damage or equipment failure. Erosive wear refers to a phenomenon or process in which loose solid or liquid particles impact the surface of an object at a certain speed or angle to cause material loss on the surface of the object. Erosive wear can be generally divided into air-jet sand erosion and slurry erosion. The invention is only aimed at the air flow sand blasting type erosion abrasion test. The sand blasting type erosion is the loss generated by high-speed airflow carrying small solid particles impacting the surface of a material, and the erosion abrasion is the most common in engineering.
The prior erosion experiment machine in China generally aims at erosion under the normal temperature condition, and few reports of high-temperature erosion experiment equipment are provided. In addition, most of the existing equipment adopts pure mechanical devices or manual adjustment for adjusting parameters such as an erosion angle, an erosion distance and the like, and has the problems of inconvenient operation, low precision, low efficiency and the like. Therefore, a numerical control device based on an automation technology is needed to realize standardization and simplification of erosion experiment operation and synchronous visualization of experiment data and operation data.
Disclosure of Invention
In order to overcome the technical defects, the invention provides an automatic erosion experimental device.
The invention is realized by the following technology: a high-temperature erosion experimental device comprises a box body, a horizontal ball screw guide rail kinematic pair, a workbench, a laser range finder, an infrared thermometer, a camera, a sprayer and a sprayer clamp, a tool table, a heating box, a pedal mechanism and an infrared emitter; a horizontally arranged horizontal lead screw guide rail kinematic pair is arranged between the front wall and the rear wall in the box body; a workbench is arranged on the horizontal lead screw guide rail kinematic pair; a spray head is fixed outside the front wall of the box body, and a hole for the spray head to pass through is formed in the front wall of the box body; a laser range finder, a camera and an infrared thermometer are fixed on the front wall of the box body; a tool table, a heating box and a pedal mechanism are arranged below the box body;
the horizontal ball screw guide rail kinematic pair comprises two pairs of supporting pieces which are respectively fixed on the front wall and the rear wall in the box body; a pair of parallel horizontal linear guide rails is fixed between the supporting pieces; a rotatable horizontal ball screw is arranged between the two horizontal linear guide rails; the rear end of the horizontal ball screw is connected with a horizontal stepping motor through a screw coupling; the front end of the horizontal ball screw is connected with the horizontal bearing seat;
the workbench comprises a substrate, a motor supporting seat, a rotary stepping motor and a workpiece clamp device; the middle of the lower end of the base plate is connected with a horizontal ball screw through a screw nut seat, and two sides of the lower end of the base plate are connected with a horizontal linear guide rail through linear bearings; the base plate is provided with a motor supporting seat; a fixed rotary stepping motor is arranged on the motor supporting seat; a coupler which synchronously rotates is arranged on the rotary stepping motor; one end of the coupler is connected with a rotary stepping motor, and the other end of the coupler is connected with a rotary shaft; a workpiece clamp device is arranged on the rotating shaft;
the nozzle is of a three-way structure, the upper opening of the nozzle is an air inlet pipeline, the lower opening of the nozzle is a sand inlet pipeline, and the right opening of the nozzle is a sand outlet; the sand inlet pipeline is connected with a sand suction pipe; the air inlet pipeline is connected with an electromagnetic valve; the air inlet pipe is connected with the air inlet pipeline of the spray head through an electromagnetic valve; a sand outlet of the spray head penetrates through a hole in the rear wall of the box body; the spray head is fixed on the spray head fixture.
Furthermore, the box body is square, and a transparent box cover is arranged at the upper end of the box body; the left side of the box body is provided with a ventilation opening, and the ventilation opening is connected with a ventilation pipe; the right side of the box body is provided with an operation screen and a transparent observation port; the four corners of the lower end of the box body are provided with corner supports; the bottom surface of the box body is a funnel-shaped conical surface protruding downwards; the interior of the box body is provided with a lighting device.
Further, the horizontal ball screw and the screw nut seat are ball screw nuts without backlash; the horizontal stepping motor is installed on the front wall of the box body.
Further, the workpiece clamp device is fixed on the rotating shaft; the workpiece clamp device comprises a workpiece fine adjustment table and a workpiece clamp; a rear fixing plate is arranged on the workpiece fine adjustment table; a Z-axis moving plate is mounted on the rear fixed plate; an X-axis fixed plate is arranged on the Z-axis moving plate; an X-axis movable clamp plate is arranged on the X-axis fixed plate; a workpiece is arranged on the X-axis movable clamp plate;
further, the spray head clamp comprises an upper bayonet, a left side plate, a right side plate, a front fixing plate and a rear fixing plate; the front fixing plate is fixed on the rear wall of the box body through bolts and nuts; the left side plate and the right side plate are welded on the front fixing plate; the rear fixing plate is fixed on the left side plate and the right side plate through angle irons; the upper bayonet is fixed between the left side plate and the right side plate through a bolt.
Further, the laser range finder is fixed on the rear wall of the box body through bolts.
Further, the heating box is mounted on a corner bracket below the box body; the heating box comprises an outer box and an inner box; a box door is arranged on the left side of the outer box; the box door is fixed on the outer box through a hinge; the upper part of the inner box and the top cover of the outer box are the same top cover, and the peripheral box walls are fixed with the top cover through threads; the bottom of the inner box is provided with an inclined groove close to the box door end; the top cover of the outer box is provided with two holes; the outer container bottom has funnel-shaped funnel face, and open at the bottom of the face of funnel face has a through-hole.
Furthermore, the pedal mechanism is a plane rocker mechanism and comprises four rods, two horizontal bearing seats, four vertical bearing seats, a pedal and two fisheye bearings; two protruding parts are respectively provided with holes below the middle part of the pedal and are connected with two vertical bearing seats through a first rod; one end of the vertical bearing seat is fixed on the pedal support triangular iron; two protruding parts are arranged at the upper part of the inner side of the pedal and are respectively provided with holes and connected with the fisheye bearing through a rod four; the rear end of the fisheye bearing is connected with the fisheye bearing through a second rod; the fisheye bearing is connected with a supporting angle iron below the heating box through a supporting piece; the horizontal bearing seat is fixed on the supporting angle frame below the heating box; the left end and the right end of the third rod are connected with the horizontal bearing seat, and the middle of the third rod is connected with the vertical bearing seat of the heating box; the heating box vertical bearing seat is connected with one end of the heating box.
Further, the tool table is mounted on a foot support between the box body and the heating box.
Compared with the prior art, the invention has the advantages of simple structure, reasonable design, realization of accurate time control, accurate positioning of the center of a workpiece, realization of accurate positioning of variable angles and variable distances, real-time observation of erosion conditions, video recording processing, dynamic demonstration of erosion process, humanized operation interface, L ED liquid crystal display of various experimental data, strong operation performance, low cost, high efficiency, convenience in disassembly, assembly and maintenance and the like, and is suitable for teaching, scientific research and production.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the case of the present invention;
FIG. 3 is a schematic view of the horizontal ball screw guide kinematic pair of the present invention;
FIG. 4-1 is a schematic view of the table of the present invention;
FIG. 4-2 is a perspective view of the rotating shaft of the present invention;
FIG. 5-1 is a schematic view of a workholding fixture apparatus of the present invention;
FIG. 5-2 is an isometric view of a trimmer of the present invention;
FIG. 6-1 is a schematic view of a sprinkler head according to the present invention;
FIG. 6-2 is a schematic view of a feeding system of the present invention;
FIG. 7 is a schematic view of the showerhead and showerhead fixture of the present invention;
FIG. 8-1 is a schematic view of a heating chamber configuration of the present invention;
FIG. 8-2 is a schematic view of a second perspective configuration of the heating chamber of the present invention;
FIG. 9 is a schematic view of a heater box and pedal mechanism of the present invention;
FIG. 10 is a schematic view of the pedal mechanism of the present invention;
FIG. 11 is a schematic view of the construction of the inner box of the heating box of the present invention;
FIG. 12 is a schematic view of the outer case structure of the heating cabinet of the present invention;
FIG. 13 is a control circuit diagram of the present invention;
fig. 14 shows an L ED display screen and operation buttons according to the present invention.
In the figure: 1. a box body; 1-1, ventilating pipe; 1-2, left sidewall; 1-3, a box cover; 1-4, rear wall; 1-5, a viewing port; 1-6, right sidewall; 1-7, an operation screen; 1-8, front wall; 1-9, supporting corner frames; 1-10, conical surface; 2. a work table; 2-1, a substrate; 2-2, angle iron; 2-3, a motor supporting seat; 2-4, a rotating shaft; 2-5, a workpiece fixture device; 2-5-1, a rear fixing plate; 2-5-2, moving the clamp plate along the X axis; 2-5-3 and a second sleeve; 2-5-4, a second fine adjuster; 2-5-5, X-axis fixing plate; 2-5-6, moving the plate along the Z axis; 2-5-7, sleeve I; 2-5-8, a first fine adjuster; 2-6, a coupler; 2-7, rotating the stepping motor; 3. a spray head fixture; 3-1, infrared ray emitter; 3-2, a front fixing plate; 3-3, a left side plate; 3-4, fixing the rear plate; 3-5, angle iron; 3-6, a spray head; 3-6-1, a sand inlet pipeline; 3-6-2, an air inlet pipeline; 3-6-3, electromagnetic valve; 3-6-4, bayonet; 3-6-5, a sand outlet; 3-7, mounting a bayonet; 3-8, bolts; 3-9, right side plate; 4. a laser range finder; 5. an infrared thermometer; 6. an infrared emitter; 7. a horizontal ball screw guide rail kinematic pair; 7-1, horizontal bearing seats; 7-2, a support member; 7-3, horizontal linear guide rail; 7-4, a horizontal ball screw; 7-5, a screw rod nut seat; 7-6, linear bearings; 7-7, a screw rod coupler; 7-8, a stepping motor frame; 7-9, a horizontal stepping motor; 8. a tool table; 9. a heating box; 9-1, an outer box; 9-1-1, a box door; 9-1-2, rear wall; 9-1-3, a top cover; 9-1-4, front wall; 9-1-5 parts of funnel surface; 9-2, an inner box; 9-2-1, inner box front plate; 9-2-2, heating the inner box back plate; 9-2-3, right heating plate of inner box; 9-2-4, heating the bottom plate of the inner box; 9-2-5, heating the front plate by the inner box; 9-3, a sand conveying pipe; 9-4, trigon iron; 9-5, horizontal angle iron; 9-6, a hinge; 10. a pedal mechanism; 10-1, heating box vertical bearing seats; 10-2 and a third rod; 10-3, horizontal bearing seats; 10-4, a support member; 10-5, supporting angle iron; 10-6, fisheye bearing; 10-7, a second rod; 10-8, a pedal; 10-9, supporting triangular iron by a pedal; 10-10, rod one; 10-11, a vertical bearing seat; 10-12, bar four; 11. an air inlet pipe; 12. a sand suction pipe.
Detailed Description
The following is a specific embodiment of the present invention, which will be further described with reference to the accompanying drawings.
As shown in figure 1, a high-temperature erosion experimental device is characterized in that a horizontally-arranged horizontal ball screw guide rail motion pair 7 is arranged between a front wall 1-8 and a rear wall 1-4 in a box body 1, a workbench 2 is arranged on the horizontal ball screw guide rail motion pair 7, a workpiece clamp device 2-5 is arranged on the workbench 2, and the workpiece clamp device 2-5 can horizontally and linearly move on the horizontal ball screw guide rail motion pair 7 along with the workbench 2. The workpiece clamp device 2-5 can rotate 360 degrees under the driving of a rotary stepping motor 2-7 in the workbench 2, the workpiece clamp device 2-5 is used for fixing a workpiece and finely adjusting the position of the workpiece, and the workpiece clamp device 2-5 can be adjusted according to different thicknesses of the workpiece to be overlapped with the surface of the X-axis movable clamp so that the side surface of the workpiece is not eroded. The spray heads 3-6 are fixed outside the rear wall 1-4 of the box body 1 through the spray head clamp 3, holes for the spray heads 3-6 to pass through are formed in the rear wall 1-4 of the box body 1, and the spray heads 3-6 are used for spraying sand grains on a workpiece. The rear wall 1-4 of the box body 1 is also fixed with a laser range finder 4, a camera and an infrared thermometer 5 for measuring some necessary data. A tool table 8, a heating box 9 and a pedal mechanism 10 are arranged below the box body 1, the heating box 9 is used for heating sand grains to achieve high-temperature erosion, and the pedal mechanism 10 is used for inverting the sand grains in the heating box 9 into an outer box of the heating box 9 to absorb the sand to erode.
As shown in fig. 1 and 2, the box body 1 is square, the front wall 1-8 and the rear wall 1-4 of the box body 1 are parallel, and the front wall 1-8 and the rear wall 1-4 are vertical to the ground. The upper end of the box body 1 is provided with a transparent box cover 1-3, the left side wall 1-2 of the box body 1 is provided with a vent, the vent is connected with the vent pipe 1-1 to facilitate the removal of floaters after erosion, the right side wall 1-6 of the box body 1 is provided with an operation screen 1-7 and a transparent observation port 1-5, and the box body 1 is internally provided with a lighting device to facilitate the observation of experimental conditions; four corners at the lower end of the box body 1 are provided with corner supports 1-9; the bottom surface of the box body 1 is a funnel-shaped conical surface 1-10 which protrudes downwards; the sand used for spraying erodes the workpiece and then falls into the bottom surface of the box body 1 again and enters the heating box 9 through the sand conveying pipe 9-3, the sand can be recycled within the service life, and the environment-friendly experiment is realized.
Referring to fig. 1 and 3, the horizontal ball screw guide kinematic pair 7 includes two pairs of parallel supporting members 7-2 fixed to the front and rear walls (i.e., the front wall 1-8 and the rear wall 1-4 of the box 1) in the box 1; a pair of parallel horizontal linear guide rails 7-3 is fixed between the two pairs of supporting pieces 7-2, a rotatable horizontal ball screw 7-4 is arranged between the two horizontal linear guide rails 7-3, the rear end of the horizontal ball screw 7-4 is connected with a horizontal stepping motor 7-9 through a screw shaft coupling 7-7, and the front section of the horizontal ball screw 7-4 is connected with a horizontal bearing seat 7-1. The horizontal stepping motors 7-9 are fixed on the outer side of the front wall of the box body 1 through stepping motor frames 7-8.
As shown in fig. 4-1 and 4-2, the table 2: the middle of the lower end of the base plate 2-1 is connected with a horizontal ball screw 7-4 through a screw nut seat 7-5, and two sides of the lower end of the base plate 2-1 are connected with a horizontal linear guide rail 7-3 through linear bearings; the horizontal ball screw 7-4 and the screw nut seat 7-5 are ball screw nuts without backlash, and the ball screw nuts without backlash are matched with the linear bearings 7-6 for use, so that the friction force in the moving process of the workbench 2 is reduced, and the motion precision of the substrate is improved. The horizontal stepping motor 7-9 drives the substrate 2-1 to do linear motion along the horizontal linear guide rail 7-3 and the horizontal ball screw 7-4 so as to control the erosion distance of the workpiece. The erosion distance between the sand outlet 3-6-5 in the spray head 3-6 and the workpiece on the workpiece fixture device 2-5 takes 150mm as the optimal experimental distance. The base plate 2-1 is provided with a motor supporting seat 2-3, a rotary stepping motor 2-7 and a workpiece clamp device 2-5. A fixed rotary stepping motor 2-7 is arranged on the motor supporting seat 2-3, a coupler 2-6 which synchronously rotates is arranged on the rotary stepping motor 2-7, one end of the coupler 2-6 is connected with the rotary stepping motor 2-7, and the other end of the coupler 2-6 is connected with a rotating shaft 2-4. The rotating shaft 2-4 penetrates through the motor supporting seat 2-3 to be connected with the workpiece clamp device 2-5, the workpiece clamp device 2-5 is driven to rotate for 360 degrees, and the rotating angle can be accurately controlled through the rotating stepping motor 2-7. An angle scale with the precision of 0.1 degree is engraved on the upper plate of the motor supporting seat so as to calibrate the rotating angle of the workpiece. The erosion angle between the sand outlet 3-6-5 in the nozzle 3-6 and the workpiece on the workpiece clamp device 2-5 is 30 degrees, 60 degrees and 90 degrees which are the most common experimental angles.
With reference to fig. 4-1, 4-2, 5-1 and 5-2, a workpiece clamp device 2-5 includes a workpiece fine adjustment table and a workpiece clamp plate, wherein the workpiece fine adjustment table is provided with a rear fixed plate 2-5-1, the rear fixed plate 2-5-1 is connected with a rotating shaft 2-4, the rotating shaft 2-4 is an incomplete cylinder, and is a plane at a position 2.5mm away from the center, the rear fixed plate 2-5-1 is provided with a hole for a matching shaft, the rear fixed plate 2-5-1 is provided with a Z-axis moving plate 2-5-6, the Z-axis moving plate 2-5-6 is provided with an X-axis fixed plate 2-5-5, the X-axis fixed plate 2-5-5 is provided with an X-axis moving clamp plate 2-5-2, the X-axis moving clamp plate 2-5-2 is provided with four threaded holes, four bolts form a workpiece clamp by matching with the threaded holes, the workpiece clamp can be provided with workpieces of different sizes, the workpiece clamps can be provided, the workpieces of different sizes can be provided, the workpieces of which are etched 50mm × 50mm can be mounted, the workpiece can be fixed on the workpiece clamp plate by matching with a fixed by matching with a lead screw of the X-5-5, the fixed on the fixed plate 2-5-5, the fixed by a rotating shaft, the fixed rod of a second rotating shaft 2-5-5 screw, the rotating shaft, the first screw rod 2-5-5 screw, the rotating sleeve can control rod of the rotating sleeve, the rotating sleeve of the second.
Referring to fig. 7, the nozzle 3-6 is a three-way structure, the upper opening of the nozzle 3-6 is an air inlet pipe 3-6-2, the lower opening of the nozzle 3-6 is a sand inlet pipe 3-6-1, and the right opening of the nozzle 3-6 is a sand outlet 3-6-5. The sand outlet 3-6-5 of the nozzle 3-6 passes through a hole on the rear wall of the box body 1. The spray heads 3-6 are fixed on the spray head fixture 3. The spray head clamp 3 comprises an upper bayonet 3-7, a left side plate 3-3, a right side plate 3-9, a front fixing plate 3-2 and a rear fixing plate 3-4; the front fixing plate 3-2 is fixed on the rear wall 1-4 of the box body 1 through bolts and nuts; the left side plate 3-3 and the right side plate 3-9 are welded on the front fixing plate 3-2; the rear fixing plate 3-4 is fixed on the left side plate 3-3 and the right side plate 3-9 through angle irons 3-5; the upper bayonet 3-7 is fixed between the left side plate 3-3 and the right side plate 3-9 through bolts 3-8. When the sand outlet device is used, the sand outlet 3-6-5 and a workpiece on the workpiece clamp device 2-5 are relatively static. The air inlet pipe 11 is connected with an air compressor to provide a motive force for sand blasting.
Referring to fig. 6-1 and 6-2, the air inlet pipe 3-6-2 is connected with an electromagnetic valve 3-6-3, the air inlet pipe 11 is connected with the electromagnetic valve 3-6-3 and then connected with the air inlet pipe 3-6-2, wherein the electromagnetic valve 3-6-3 is used for controlling the erosion time, and the erosion time is 10s and 15s in general. The sand inlet pipe 3-6-1 is connected with a sand suction pipe 12, one end of the sand suction pipe 12 extends into the bottom of the outer box of the heating box 9, namely the funnel surface 9-1-5, and the bottom of the box is provided with erosion sand particles which are generally natural corundum (Al)2O3). When the air compressor works, the interface of the air inlet pipe 11 and the sand suction pipe 12 is a low-pressure area, and the erosion sand in the box body 1 enters the air inlet pipe 11 from the sand suction pipe 12 under the action of external atmospheric pressure and is sprayed out from the sand outlet 3-6-5.
As shown in fig. 8-1, 8-2, 11 and 12, the heating box 9 is mounted on a corner bracket 1-9 under the cabinet 1. The heating compartment 9 includes an outer compartment 9-1 and an inner compartment 9-2. The upper part of the inner box 9-2 and the top cover 9-1-3 of the outer box 9-1 are the same top cover, and the peripheral box walls are fixed with the top cover through threads. The bottom of the inner box 9-2 is provided with an inclined groove near the end of the box door 9-1-1. The top cover 9-1-3 of the outer box 9-1 is provided with two holes, one of which is connected with the bottom of the box 1 through a sand conveying pipe 9-3, and the other hole can be directly poured with sand grains and can be sealed during working. The bottom of the outer box is provided with a funnel-shaped funnel surface 9-1-5, the bottom of the funnel-shaped funnel surface is provided with a through hole which is connected with a sand suction pipe 12, the left side of the outer box 9-1 is provided with a box door 9-1-1, the box door 9-1-1 is fixed on the outer box 9-1 through a hinge 9-6, and the box door 9-1-1 can be closed during work. The outer box 9-1 is placed on the horizontal triangular iron 9-5 during heating. The horizontal triangular iron 9-5 is fixed on the supporting angle frame 1-9 through welding.
As shown in fig. 9 and 10, the pedal mechanism 10 is a planar rocker mechanism including four rods, two horizontal bearing blocks 10-3, four vertical bearing blocks 10-11, a pedal 10-8 and two fisheye bearings 10-5; two protruding parts are respectively provided with holes below the middle part of the pedal 10-8 and are connected with two vertical bearing seats 10-11 through a first rod 10-10; one end of a vertical bearing seat 10-11 is fixed on a pedal support triangular iron 10-9; two protruding parts are respectively provided with holes at the upper part of the inner side of the pedal 10-8 and are connected with a fisheye bearing 10-5 through a rod four 10-12; the rear end of the fisheye bearing 10-5 is connected with a fisheye bearing 10-6 through a second rod 10-7; the fisheye bearing 10-6 is connected with a supporting angle iron 10-5 below the heating box 9 through a supporting piece 10-4; the horizontal bearing seat 10-3 is fixed below the heating box 9 and on the supporting angle bracket 1-9 of the box body 1; the left end and the right end of the third rod 10-2 are connected with a horizontal bearing seat 10-3, and the middle of the third rod is connected with a vertical bearing seat 10-1 of a heating box; the heating box vertical bearing seat 10-1 is connected with one end of the heating box 9.
As shown in FIG. 11, the inner box 9-2 comprises an inner box front plate 9-2-1, an inner box rear heating plate 9-2-2, an inner box right heating plate 9-2-3, an inner box heating bottom plate 9-2-4 and an inner box heating front plate 9-2-5.
Wherein:
as shown in connection with fig. 1, the tool table 8 is mounted on a foot rest between the cabinet 1 and the heating cabinet 9.
Referring to fig. 1 and 13, the automatic erosion experimental apparatus further includes a control circuit for controlling the horizontal stepping motor 7-9, the rotary stepping motor 2-7, the laser range finder 4, the infrared thermometer 5 and the electromagnetic valve 3-6-3;
the control circuit takes a 51 single chip microcomputer as a core, an L ED touch screen as an operation end, a L ED liquid crystal display screen as an operation display end, and horizontal stepping motors 7-9 and rotating motors all adopt stepping motors.
Electromagnetic valve: the working state of the electromagnetic valve is controlled by a 51 single chip microcomputer, and the pressure intensity at the sand outlet can be accurately controlled and the sand blasting time can be controlled. The barometer synchronously monitors the pressure at the mouth;
a horizontal stepping motor: the horizontal stepping motor 7-9 drives the substrate 2-1 to do linear motion along the horizontal linear guide 7-3 and the horizontal ball screw 7-4 so as to control the erosion distance.
Rotating the stepping motor 2-7: the rotary stepping motors 2-7 drive the workbench to rotate so as to control the erosion angle.
An electronic control section:
the power supply is converted into a required stabilized power supply by a household power supply and a 24V250W switching power supply.
The stepping motor is driven by a 17HD004-23D stepping motor and is connected with a port P1 and a port P3 of the singlechip;
as shown in fig. 14, the display adopts a 12864 liquid crystal display screen, and is connected with the P2 port of the single chip microcomputer, and the data transmission speed of the parallel transmission mode is high.
The invention takes a single chip as a core processor, realizes the angular rotation of the stepping motor by operating an operating button, controls a lead screw and further controls the erosion angle and distance of a workpiece. The respective functions of the present work can be realized as follows.
Function one: the button controls the stepping motor to realize rotation of the workpiece fixture and translation of the workpiece fixture platform.
And the L ED display screen synchronously displays the relative angle of the workpiece clamp and the vertical position, the erosion distance and the erosion angle according to the working condition of the stepping motor fed back by the singlechip, and prompts the input of an operation instruction.
And function III: the button controls the sand blasting time.
And the function is four: the temperature of the heating box is controlled to realize the switching between the high-temperature environment and the normal-temperature environment.
The specific operation process of the invention is as follows:
one, normal temperature erosion
(1) Mounting a test workpiece;
(2) after the power supply is turned on, the lighting device in the box body is turned on, whether the workpiece clamp platform is fixed or not is checked, and the workpiece clamp is in an angle relative to the vertical position;
(3) the workpiece clamp is operated to step by 0.1 degree, 1 degree, 5 degree and 10 degree at each time according to the angle of a rotating button workpiece clamp in a motor in the touch screen and rotate continuously, the position of the workpiece clamp is adjusted by the distance of a key to step by 0.1mm, 1mm, 5mm and 10mm at each time and the workpiece clamp moves continuously;
(4) setting the sand blasting time by a key time setting, and adjusting and controlling the required erosion time by the keys '+', '-';
(5) after the rotation angle and the position relative to the nozzle of the workpiece are confirmed to be correct, starting sand blasting by pressing a START key;
(6) stopping sand blasting by automatically stopping or manually pressing a STOP;
(7) and taking out the test workpiece.
Second, high temperature erosion
(1) Mounting a test workpiece;
(2) after the power supply is turned on, the lighting device in the box body is turned on, whether the workpiece clamp platform is fixed or not is checked, and the workpiece clamp is in an angle relative to the vertical position;
(3) the workpiece clamp is operated to step by 0.1 degree, 1 degree, 5 degree and 10 degree at each time according to the angle of a rotating button workpiece clamp in a motor in the touch screen and rotate continuously, the position of the workpiece clamp is adjusted by the distance of a key to step by 0.1mm, 1mm, 5mm and 10mm at each time and the workpiece clamp moves continuously;
(4) adjusting the temperature in the heating box according to the actual requirement by operating the temperature plus or the temperature minus in the heating box in the touch screen and performing feedback adjustment according to an L ED display screen;
(5) setting the sand blasting time by a key time setting, and adjusting and controlling the required erosion time by the keys '+', '-';
(6) after confirming that the rotation angle of the workpiece, the position relative to the nozzle and the temperature in the heating box are correct, starting sand blasting by pressing a START button;
(7) stopping sand blasting by automatically stopping or manually pressing a STOP;
(8) and taking out the test workpiece after cooling.

Claims (9)

1. A high-temperature erosion experimental device comprises a box body (1), a horizontal ball screw guide rail kinematic pair (7), a workbench (2), a laser range finder (4), an infrared thermometer (5), a camera, spray heads (3-6) and a spray head clamp (3), a tool table (8), a heating box (9), a pedal mechanism (10) and an infrared emitter (6); the method is characterized in that: a horizontally arranged horizontal lead screw guide rail kinematic pair (7) is arranged between a front wall (1-8) and a rear wall (1-4) in the box body (1); a workbench (2) is arranged on the horizontal lead screw guide rail kinematic pair (7); a spray head (3-6) is fixed outside the front wall (1-8) of the box body (1), and a hole for the spray head (3-6) to pass through is formed in the front wall (1-8) of the box body (1); a laser range finder (4), a camera and an infrared thermometer (5) are fixed on the front wall (1-8) of the box body (1); a tool table (8), a heating box (9) and a pedal mechanism (10) are arranged below the box body (1);
the horizontal ball screw guide rail kinematic pair (7) comprises two pairs of supporting pieces (7-2) which are respectively fixed on the front wall and the rear wall in the box body (1); a pair of parallel horizontal linear guide rails (7-3) is fixed between the supporting pieces (7-2); a rotatable horizontal ball screw (7-4) is arranged between the two horizontal linear guide rails (7-3); the rear end of the horizontal ball screw (7-4) is connected with a horizontal stepping motor (7-9) through a screw shaft coupling (7-7); the front end of the horizontal ball screw (7-4) is connected with the horizontal bearing seat (7-1);
the workbench (2) comprises a substrate (2-1), a motor supporting seat (2-3), a rotary stepping motor (2-7) and a workpiece clamp device (2-5); the middle of the lower end of the base plate (2-1) is connected with a horizontal ball screw (7-4) through a screw nut seat (7-5), and two sides of the lower end of the base plate (2-1) are connected with a horizontal linear guide rail (7-3) through linear bearings (7-6); a motor supporting seat (2-3) is arranged on the substrate (2-1); a fixed rotary stepping motor (2-7) is arranged on the motor supporting seat (2-3); a coupler (2-6) which synchronously rotates is arranged on the rotary stepping motor (2-7); one end of the coupler (2-6) is connected with a rotary stepping motor (2-7), and the other end of the coupler (2-6) is connected with a rotary shaft (2-4); a workpiece clamp device (2-5) is arranged on the rotating shaft (2-4);
the nozzle (3-6) is of a three-way structure, the upper opening of the nozzle (3-6) is an air inlet pipeline (3-6-2), the lower opening of the nozzle (3-6) is a sand inlet pipeline (3-6-1), and the right opening of the nozzle (3-6) is a sand outlet (3-6-5); the sand inlet pipeline (3-6-1) is connected with a sand suction pipe (12); the air inlet pipeline (3-6-2) is connected with an electromagnetic valve (3-6-3); the air inlet pipe (11) is connected with the nozzle air inlet pipeline (3-6-2) through the electromagnetic valve (3-6-3); a sand outlet (3-6-5) of the spray head (3-6) penetrates through a hole in the rear wall (1-4) of the box body (1); the spray heads (3-6) are fixed on the spray head clamp (3).
2. The high-temperature erosion experimental apparatus according to claim 1, characterized in that: the box body (1) is square, and a transparent box cover (1-3) is arranged at the upper end of the box body (1); a ventilation opening is arranged on the left side of the box body (1) and is connected with the ventilation pipe (1-1); the right side of the box body (1) is provided with an operation screen (1-7) and a transparent observation port (1-5); four corners at the lower end of the box body (1) are provided with corner supports (1-9); the bottom surface of the box body (1) is a funnel-shaped conical surface (1-10) which protrudes downwards; the interior of the box body (1) is provided with a lighting device.
3. The high-temperature erosion experimental apparatus according to claim 1, characterized in that: the horizontal ball screw (7-4) and the screw nut seat (7-5) are ball screw nuts without backlash; the horizontal stepping motors (7-9) are arranged on the front walls (1-8) of the box body (1).
4. The high-temperature erosion experimental apparatus according to claim 1, characterized in that: the workpiece clamp device (2-5) is fixed on the rotating shaft (2-4); the workpiece clamp device (2-5) comprises a workpiece fine adjustment table and a workpiece clamp; a rear fixing plate (2-5-1) is arranged on the workpiece fine adjustment table; a Z-axis moving plate (2-5-6) is arranged on the rear fixing plate (2-5-1); an X-axis fixed plate (2-5-5) is arranged on the Z-axis moving plate (2-5-6); an X-axis movable clamp plate (2-5-2) is arranged on the X-axis fixed plate (2-5-5); and a workpiece is arranged on the X-axis movable clamp plate (2-5-2).
5. The high-temperature erosion experimental apparatus according to claim 1, characterized in that: the spray head clamp (3) comprises an upper bayonet (3-7), a left side plate (3-3), a right side plate (3-9), a front fixing plate (3-2) and a rear fixing plate (3-4); the front fixing plate (3-2) is fixed on the rear wall (1-4) of the box body (1) through bolts and nuts; the left side plate (3-3) and the right side plate (3-9) are welded on the front fixing plate (3-2); the rear fixing plate (3-4) is fixed on the left side plate (3-3) and the right side plate (3-9) through angle irons (3-5); the upper bayonet (3-7) is fixed between the left side plate (3-3) and the right side plate (3-9) through bolts (3-8).
6. The high-temperature erosion experimental apparatus according to claim 1, characterized in that: the laser range finder (4) is fixed on the rear wall (1-4) of the box body (1) through bolts.
7. The high-temperature erosion experimental apparatus according to claim 1, characterized in that: the heating box (9) is arranged on an angle bracket (1-9) below the box body (1); the heating box (9) comprises an outer box (9-1) and an inner box (9-2); a box door (9-1-1) is arranged on the left side of the outer box (1); the box door (9-1-1) is fixed on the outer box (9-1) through a hinge (9-6); the upper part of the inner box (9-2) and the top cover of the outer box (9-1) are the same, and the peripheral box walls are fixed with the top cover through threads; the bottom of the inner box (9-2) close to the box door (9-1-1) is provided with an inclined groove; the top cover (9-1-3) of the outer box (9-1) is provided with two holes; the bottom of the outer box (9-1) is provided with a funnel-shaped funnel surface (9-1-5), and the bottom of the funnel surface (9-1-5) is provided with a through hole.
8. The high-temperature erosion experimental apparatus according to claim 1, characterized in that: the pedal mechanism (10) is a plane rocker mechanism and comprises four rods, two horizontal bearing seats (10-3), four vertical bearing seats (10-11), a pedal (10-8) and two fisheye bearings (10-6); two protruding parts are respectively provided with holes below the middle part of the pedal (10-8) and are connected with two vertical bearing seats (10-11) through a first rod (10-10); one end of the vertical bearing seat (10-11) is fixed on the pedal support triangular iron (10-9); two protruding parts are respectively provided with holes at the upper part of the inner side of the pedal (10-8) and are connected with the fisheye bearing (10-6) through a rod four (10-12); the rear end of the fisheye bearing (10-6) is connected with the fisheye bearing (10-6) through a second rod (10-7); the fisheye bearing (10-6) is connected with a supporting angle iron (10-5) below the heating box (9) through a supporting piece (10-4); the horizontal bearing seat (10-3) is fixed on an angle bracket (1-9) below the heating box (9); the left end and the right end of the third rod (10-2) are connected with a horizontal bearing seat (10-3), and the middle of the third rod is connected with a vertical bearing seat (10-1) of a heating box; the heating box vertical bearing seat (10-1) is connected with one end of the heating box (9).
9. The high-temperature erosion experimental apparatus according to claim 1, characterized in that: the tool table (8) is arranged on the foot support (1-9) between the box body (1) and the heating box (9).
CN202010398011.5A 2020-05-12 2020-05-12 High-temperature erosion experimental device Active CN111487154B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101477011A (en) * 2009-01-16 2009-07-08 北京工业大学 High-temperature erosion abrasion test device and method
CN201340370Y (en) * 2009-01-16 2009-11-04 北京工业大学 High-temperature erosion wear testing device
CN106525628A (en) * 2016-11-08 2017-03-22 浙江理工大学 Erosion test device and method with capacity of controlling temperature, angle, flow velocity and time
CN108053735A (en) * 2017-07-13 2018-05-18 徐州工程学院 Automatic erosion experiment apparatus
CN207908261U (en) * 2018-03-19 2018-09-25 徐州工程学院 Erosion testing machine spray nozzle fixture
CN109030268A (en) * 2018-09-07 2018-12-18 山东大学 A kind of adjustable gas fixed double phase flow tester for testing scouring wear structure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101477011A (en) * 2009-01-16 2009-07-08 北京工业大学 High-temperature erosion abrasion test device and method
CN201340370Y (en) * 2009-01-16 2009-11-04 北京工业大学 High-temperature erosion wear testing device
CN106525628A (en) * 2016-11-08 2017-03-22 浙江理工大学 Erosion test device and method with capacity of controlling temperature, angle, flow velocity and time
CN108053735A (en) * 2017-07-13 2018-05-18 徐州工程学院 Automatic erosion experiment apparatus
CN207908261U (en) * 2018-03-19 2018-09-25 徐州工程学院 Erosion testing machine spray nozzle fixture
CN109030268A (en) * 2018-09-07 2018-12-18 山东大学 A kind of adjustable gas fixed double phase flow tester for testing scouring wear structure

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