CN113358508A - Device and method for evaluating wear-resisting and impact-resisting comprehensive performance of coating - Google Patents
Device and method for evaluating wear-resisting and impact-resisting comprehensive performance of coating Download PDFInfo
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- CN113358508A CN113358508A CN202110320908.0A CN202110320908A CN113358508A CN 113358508 A CN113358508 A CN 113358508A CN 202110320908 A CN202110320908 A CN 202110320908A CN 113358508 A CN113358508 A CN 113358508A
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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
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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
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
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Abstract
The invention discloses a device and a method for evaluating the comprehensive performance of wear resistance and impact resistance of a coating, wherein the evaluation device comprises: a base plate; the soil test box is arranged on the bottom plate and is used for filling simulation test soil; the rotating device is arranged on the bottom plate and comprises a driving system and a rotating system, and the driving system provides power for the rotating system; the lifting device is arranged on the bottom plate and used for lifting the rotating system of the rotating device; and the multi-specification coating samples are arranged on the rotating system of the rotating device and extend into the soil test box, and can rotate and do planetary motion along with the rotation of the rotating system. The method can more accurately simulate the actual working condition and evaluate the performance of the coating on the surface of the agricultural machine soil-entering part.
Description
Technical Field
The invention relates to a surface functional material detection and evaluation technology, in particular to a device and a method for experimental evaluation of wear resistance and impact resistance of a surface coating of an agricultural machine buried part.
Background
The members inserted into the soil of agricultural mechanized equipment such as ploughshares, rotary blades and disc rakes are directly contacted and rubbed with soil and sand and stones in the operation process, thereby causing serious abrasion or impact fracture and causing early failure. In order to improve the wear resistance and the shock resistance of the embedded part, surfacing, cladding and other technologies are generally adopted at home and abroad to prepare the surface coating, but an experimental evaluation device and method capable of simulating actual working conditions are lacked under laboratory conditions. The evaluation experiment directly carried out in the field is greatly influenced by factors such as seasons, climate and the like, the field experiment period is long, the cost is high, and the working conditions of soil in the evaluation process are inconsistent, so that accurate and effective data cannot be obtained. The dry rubber wheel abrasive wear test method or the wet rubber wheel abrasive wear test method which is usually adopted in a laboratory cannot evaluate the impact performance of sand and stone in soil, the experimental result is far away from the actual application condition, and the optimization design and the production engineering application of a high-reliability coating cannot be effectively guided.
Therefore, how to design a device and a method for evaluating the comprehensive wear resistance and impact resistance of the surface coating of the agricultural machine soil-entering part becomes a problem to be solved by the technical personnel in the field.
Disclosure of Invention
The invention aims to provide a device and a method for evaluating the comprehensive performance of wear resistance and impact resistance of a coating, so that the device and the method can more accurately simulate the actual working condition and evaluate the performance of the coating on the surface of an agricultural machine soil-entering part.
In order to achieve the above object, the present invention provides an evaluation device for the comprehensive properties of wear resistance and impact resistance of a coating, comprising:
a base plate;
the soil test box is arranged on the bottom plate and is used for filling simulation test soil;
the rotating device is arranged on the bottom plate and comprises a driving system and a rotating system, and the driving system provides power for the rotating system;
the lifting device is arranged on the bottom plate and used for lifting the rotating system of the rotating device; and
the multi-specification coating test samples are arranged on the rotating system of the rotating device and extend into the soil test box, and can rotate and do planetary motion along with the rotation of the rotating system.
Wherein, the simulation test soil of the soil test box can simulate the soil of different areas and mix some sand and stones.
The soil moisture simulation test box also comprises a soil firmness sensor and a soil moisture sensor which are placed in the simulation test soil of the soil test box so as to accurately simulate and verify the soil condition.
The driving system comprises a variable frequency motor, a speed reducer, a telescopic transmission shaft and a driving gear; the variable frequency motor and the speed reducer are fixed on the bottom plate and are connected with the driving gear through the telescopic transmission shaft, and the driving gear is driven by the variable frequency motor, the speed reducer and the telescopic transmission shaft so as to realize stepless speed regulation.
The telescopic transmission shaft is composed of an inner shaft and an outer shaft which is tightly matched with the inner shaft, the inner shaft is connected with the speed reducer, and the outer shaft is connected with the driving gear, so that transmission torque is realized, and the lifting motion of the driving gear is not influenced.
The outer shaft of the telescopic transmission shaft comprises a coupler, a transmission shaft and a bearing seat which are sequentially connected from bottom to top.
The rotating system comprises a gear disc, at least two gear shafts, a large gear, a rotating disc and a pressing wheel set; the gear disc is fixed on the rotating disc and meshed with the driving gear, so that the rotating disc can be driven by the driving gear to rotate; the upper end of the gear shaft is arranged on the rotating disc through an outer spherical surface bearing seat, and the lower end of the gear shaft is provided with an internal spline, so that the multi-specification coating sample can be mounted or dismounted in the gear shaft; the large gear is arranged below the rotating disc; the covering pressing wheel set comprises a soil covering wheel and a soil pressing wheel, the soil covering wheel set is fixed below the rotating disk through a supporting rod, and the covering pressing wheel set and the gear shaft are arranged on the same circumference in a 90-degree-difference crossed mode.
The surface of one end of the multi-specification coating sample is provided with a coating, the other end of the multi-specification coating sample is provided with a spline shaft, and the spline shaft can be inserted into the gear shaft and is self-locked so as to be meshed with the large gear.
The specification style of one end of the multi-specification coating sample surface for preparing the coating is standard cylindrical, conical, rhombic or cylindrical spiral.
The multi-specification coating sample can rotate in the soil of the soil test box and does planetary motion along with the rotating device, and the turned-up soil is restored to the original state by the covering and pressing wheel set (wherein the soil covering wheel, the soil pressing wheel and the multi-specification coating sample are arranged on the same circumference in a crossed mode), so that the operation condition of the surface coating agricultural machine soil entering piece is simulated and verified under various soil environments.
The lifting device comprises a sliding positioning block, a sliding positioning disc, a guide system, a spiral lifter and a motor; the sliding positioning disc is fixed below the gear disc through the sliding positioning block, and the sliding positioning disc is lifted through the spiral lifter below the sliding positioning disc and is oriented by the guide system; the screw elevator and the motor driving the screw elevator are mounted on the base plate through a bracket.
The guide system comprises two groups of guide shafts and guide sleeves which are distributed on two sides of the soil test box; the guide sleeve is arranged on the bottom plate and fixed on the periphery of the soil test box, and the guide shaft is tightly matched with the guide sleeve through two groups of sliding bearings at the upper end of the guide sleeve.
Wherein, the sliding positioning block is an annular engineering plastic sliding positioning block, and the sliding bearing is a stroke plastic sliding bearing. The engineering plastic sliding bearing has the excellent characteristics of dust resistance, maintenance-free property, self-lubrication and corrosion resistance.
The invention also provides a method for evaluating the comprehensive wear-resistant and impact-resistant performance of the coating, which is carried out by utilizing the device for evaluating the comprehensive wear-resistant and impact-resistant performance of the coating, and the method comprises the following steps:
1) lifting the lifting device to lift the rotating system and install the multi-specification coating sample under the rotating system; loading simulation test soil for simulation verification in the soil test box;
2) descending the lifting device to lower the rotating system and insert the multi-specification coating samples into the simulated test soil;
3) starting the driving system of the rotating device to drive the rotating system to rotate, driving the multi-specification coating sample to start to rotate in the simulated test soil of the soil test box and perform planetary motion along with the revolution of the rotating device, and then restoring the turned-up simulated test soil to the original state by the pressing wheel covering group which is arranged on the same circumference with the multi-specification coating sample in a crossed manner;
4) when the revolution of the rotating system reaches the set revolution, stopping the operation of the device, taking down the multi-specification coating sample, observing the abrasion and the surface of an impacted part of the multi-specification coating sample, weighing, and measuring the weight loss condition;
5) and recording the surface abrasion and weight loss conditions of the multi-specification coating sample, and evaluating the coating effect.
Wherein, in the step 1), the gear plate of the rotating system is lifted up through the lifting device; further mixing a quantity of sand and water after filling the simulated test soil; further placing a soil firmness sensor and a soil moisture sensor in the simulation test soil to accurately simulate and verify the soil condition; if necessary, the coated multi-gauge samples and uncoated multi-gauge samples were installed simultaneously.
Wherein, in step 2), the lifting device is lowered to lower the gear plate of the rotating system; the soil covering wheel and the soil pressing wheel of the covering and pressing wheel set fall on the soil surface of the simulation test, and the soil pressure and the soil humidity meet the requirements.
In step 3), the driving system is started, the driving gear of the driving system drives the gear disc of the rotating system to rotate, the gear disc and the multi-specification coating samples arranged below the rotating disc are meshed with the large gear through the gear shaft, the multi-specification coating samples start to rotate in the simulated test soil of the soil test box and do planetary motion along with the revolution of the rotating device, and the turned simulated test soil is restored to the original state by the soil covering wheels and the soil pressing wheels which are arranged on the same circumference in a crossed mode with the multi-specification coating samples.
The invention discloses a device and a method for evaluating the comprehensive wear-resistant and impact-resistant performance of a coating, which can repeatedly and accurately simulate the soil working condition environment coupling multiple factors such as soil, sand and stone, firmness, moisture and the like, can evaluate the comprehensive wear-resistant and impact-resistant performance of the coating on the surface of an agricultural machinery embedded part in different soil environments, realize the all-weather reliability experiment evaluation in a laboratory, and solve the problem of the influence and limitation of factors such as field seasons, climate and the like on the evaluation period and repeatability.
Specifically, the invention achieves the following technical effects:
(1) the invention can simulate the soil in different areas, mixes a plurality of sand and stones, places a soil firmness sensor and a soil moisture sensor between the soils, accurately simulates and verifies the soil condition, and keeps consistent test conditions.
(2) The method is used for simulating and verifying the comprehensive wear-resistant and impact-resistant performance of the surface coating of the agricultural machine soil-entering part, is not limited by time, does not need to be interrupted, and can greatly shorten the test period.
(3) The multi-specification coating samples are respectively made into a cylinder, a cone, a diamond and a cylinder spiral, the surface of the multi-specification coating sample is provided with a coating, the surface coatings of agricultural machinery buried parts such as plough points of ploughshares, disc rakes and rotary cultivators can be simulated, and the comparison is realized by simultaneously installing the coating sample and the uncoated sample.
The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.
Drawings
FIG. 1 is a schematic view of an apparatus for evaluating the abrasion resistance and impact resistance of a coating according to a preferred embodiment of the present invention;
FIGS. 2a and 2b are a top view and a front view of a multi-gauge coated sample according to an embodiment of the present invention (a schematic diagram of a standard sample structure);
FIGS. 3a and 3b are top and front views of a multi-gauge coated sample according to another embodiment of the present invention (schematic diagram of diamond-shaped sample structure);
FIGS. 4a and 4b are top and front views of a multi-gauge coated sample according to another embodiment of the present invention (schematic view of a tapered sample structure);
FIGS. 5a and 5b are top and front views of a multi-gauge coated sample according to yet another embodiment of the present invention (schematic diagram of spiral sample structure);
wherein, the reference numbers:
1-base plate
2-frequency conversion motor
3-speed reducer
4-telescopic transmission shaft
5-guide shaft
6-guide sleeve
7-plain bearing
8-shaft coupling
9-drive shaft
10-bearing seat
11-drive gear
12-Gear plate
13-Gear shaft
14-insert bearing seat
15-big gear
16-rotating disc
17-support rod
18-covered pressure wheel set
19-Multi-Specification coating test specimen
20-sliding positioning block
21-sliding positioning disk
22-spiral elevator
23-electric machine
24-soil
25-soil firmness sensor
26-soil moisture sensor
27-soil test box
Detailed Description
In order to clarify the technical features of the present invention and to make the structure, features, usage and technical effects of the present invention clear to those skilled in the art, the following description of the present invention with reference to the accompanying drawings will be provided for the purpose of illustration. However, the following description is only for illustrative purposes and is not intended to limit the present invention.
Referring to fig. 1, the present invention provides an evaluation apparatus for evaluating the wear resistance and impact resistance of a coating, the evaluation apparatus comprising: a base plate 1; a soil test box 27 disposed on the bottom plate 1, the soil test box 27 being filled with simulation test soil 24, the simulation test soil 24 of the soil test box 27 being capable of simulating soils of different regions and mixing a plurality of sands and stones; the rotating device is arranged on the bottom plate 1 and comprises a driving system and a rotating system, and the driving system provides power for the rotating system; a lifting device arranged on the bottom plate 1 and used for lifting the rotating system of the rotating device; and at least two multi-specification coating samples 19, wherein the multi-specification coating samples 19 are arranged on the rotating system of the rotating device, extend into the soil test box 27 and can rotate and do planetary motion along with the rotation of the rotating system.
The evaluation device for the comprehensive wear and impact resistance of the coating can also comprise a soil firmness sensor 25 and a soil moisture sensor 26 which are placed in the simulation test soil 24 of the soil test box 27 so as to accurately simulate and verify the soil condition.
The driving system comprises a variable frequency motor 2, a speed reducer 3, a telescopic transmission shaft 4 and a driving gear 11; the variable frequency motor 2 and the speed reducer 3 are fixed on the bottom plate 1 and are connected with the driving gear 11 through the telescopic transmission shaft 4, and the driving gear 11 is driven by the variable frequency motor 2, the speed reducer 3 and the telescopic transmission shaft 4 to realize stepless speed regulation. The telescopic transmission shaft 4 is composed of an inner shaft and an outer shaft which are tightly matched, the inner shaft is connected with the speed reducer 3, and the outer shaft is connected with the driving gear 11, so that transmission torque is realized, and the lifting motion of the driving gear 11 is not influenced. The outer shaft of the telescopic transmission shaft 4 comprises a coupling 8, a transmission shaft 9 and a bearing seat 10 which are sequentially connected from bottom to top.
The rotating system comprises a gear disc 12, at least two gear shafts 13, a large gear 15, a rotating disc 16 and a pressing wheel set 18; the gear plate 12 is fixed on the rotating plate 16 and meshed with the driving gear 11, so that the rotating plate 16 can be driven by the driving gear 11 to rotate; the upper end of the gear shaft 13 is arranged on the rotating disc 16 through an outer spherical bearing seat 14, and the lower end of the gear shaft 13 is provided with an internal spline, so that the multi-specification coating sample 19 can be installed or disassembled in the gear shaft; the large gear 15 is arranged below the rotating disc 16; the covering pressing wheel set 18 comprises a covering soil wheel and a soil pressing wheel, and is fixed below the rotating disc 16 through a supporting rod 17, and the covering pressing wheel set 18 and the gear shaft 13 are arranged on the same circumference in a crossed mode with a 90-degree difference.
Referring to fig. 2a to 5b, the multi-gauge coated sample 19 has a coating on one end surface and a spline shaft on the other end, and the spline shaft can be inserted into the gear shaft 13 and self-locked to mesh with the bull gear 15. The specification style of one end of the multi-specification coating sample 19, on which the coating is prepared, is a standard cylinder, a cone, a diamond or a cylindrical spiral.
The multi-specification coating sample 19 can rotate in the soil of the soil test box 27 and move in a planetary manner along with the rotating device, and the turned-up soil is restored to the original state by the covering and pressing wheel set 18 (wherein the soil covering wheel and the soil pressing wheel are arranged on the same circumference in a crossed manner with the multi-specification coating sample 19), so that the operation condition of the surface coating agricultural machine soil-entering part prepared under various soil environments is simulated and verified.
The lifting device comprises a sliding positioning block 20, a sliding positioning disc 21, a guide system, a spiral lifter 22 and a motor 23; the sliding positioning plate 21 is fixed below the gear plate 12 through the sliding positioning block 20, and the sliding positioning plate 21 is lifted through the spiral lifter 22 below the sliding positioning plate and is oriented by the guide system; the screw lift 22 and the motor 23 driving the screw lift 22 are mounted on the base plate 1 through brackets. The guide system comprises two groups of guide shafts 5 and guide sleeves 6 which are distributed at two sides of the soil test box 27; the guide sleeve 6 is installed on the bottom plate 1 and fixed on the periphery of the soil test box 27, and the guide shaft 5 is tightly matched with the guide sleeve 6 through two groups of sliding bearings 7 at the upper end of the guide sleeve 6. The sliding positioning block 20 is an annular engineering plastic sliding positioning block 20, and the sliding bearing 7 is a stroke plastic sliding bearing 7. The engineering plastic sliding bearing 7 has the excellent characteristics of dust resistance, maintenance-free property, self-lubrication and corrosion resistance.
The invention also provides a method for evaluating the comprehensive wear-resistant and impact-resistant performance of the coating, which is carried out by utilizing the device for evaluating the comprehensive wear-resistant and impact-resistant performance of the coating, and the method comprises the following steps:
step 1) lifting the lifting device to lift the rotating system and install the multi-specification coating sample 19 below the rotating system; loading a simulation test soil 24 to be subjected to simulation verification in the soil test chamber 27;
specifically, the gear plate 12 of the rotation system is lifted by the lifting device; further mixing some sand and water after filling the simulated test soil 24; further placing a soil firmness sensor 25 and a soil moisture sensor 26 in the simulation test soil 24 to accurately simulate and verify the soil condition; if the comparison is needed, a coated multi-specification coating sample 19 and an uncoated multi-specification coating sample 19 are installed at the same time;
step 2) descending the lifting device to lower the rotating system, and inserting the multi-specification coating sample 19 into the simulation test soil 24;
specifically, the lifting device is lowered to lower the gear plate 12 of the rotating system; the soil covering wheels and the soil pressing wheels of the covering and pressing wheel set 18 fall on the surface of the simulated test soil 24, and the soil pressure and the soil humidity meet the requirements;
step 3) starting the driving system of the rotating device to drive the rotating system to rotate, wherein the multi-specification coating sample 19 is driven by the rotating system to start to rotate in the simulated test soil 24 of the soil test box 27 and to make planetary motion along with the revolution of the rotating device, and the turned-up simulated test soil 24 is recovered to the original state by the pressure covering wheel set 18 which is arranged on the same circumference with the multi-specification coating sample 19 in a crossed manner;
specifically, the driving system is started, the driving gear 11 of the driving system drives the gear plate 12 of the rotating system to rotate, the gear plate 12 and the multi-specification coating sample 19 mounted below the rotating disc 16 are meshed with the large gear 15 through the gear shaft 13, the multi-specification coating sample starts to rotate in the simulated test soil 24 of the soil test box 27 and rotates in a planetary motion along with the revolution of the rotating device, and the turned-up simulated test soil 24 is recovered to the original state by the soil covering wheels and the soil pressing wheels which are arranged on the same circumference in a crossed manner with the multi-specification coating sample 19;
step 4) when the revolution of the rotating system reaches the set revolution, stopping the operation of the device, taking down the multi-specification coating sample 19, observing the abrasion and the surface of the impacted part of the multi-specification coating sample 19, weighing, and measuring the weight loss condition;
and step 5) recording the surface abrasion and weight loss conditions of the multi-specification coating sample 19, and evaluating the coating effect.
The invention discloses a device and a method for evaluating the comprehensive wear-resistant and impact-resistant performance of a coating, which can repeatedly and accurately simulate the soil working condition environment coupling multiple factors such as soil, sand and stone, firmness, moisture and the like, can evaluate the comprehensive wear-resistant and impact-resistant performance of the coating on the surface of an agricultural machinery embedded part in different soil environments, realize the all-weather reliability experiment evaluation in a laboratory, and solve the problem of the influence and limitation of factors such as field seasons, climate and the like on the evaluation period and repeatability.
Specifically, the invention achieves the following technical effects:
(1) the invention can simulate the soil in different areas, mixes a plurality of sand and stones, places a soil firmness sensor and a soil moisture sensor between the soils, accurately simulates and verifies the soil condition, and keeps consistent test conditions.
(2) The method is used for simulating and verifying the comprehensive wear-resistant and impact-resistant performance of the surface coating of the agricultural machine soil-entering part, is not limited by time, does not need to be interrupted, and can greatly shorten the test period.
(3) The multi-specification coating samples are respectively made into a cylinder, a cone, a diamond and a cylinder spiral, the surface of the multi-specification coating sample is provided with a coating, the surface coatings of agricultural machinery buried parts such as plough points of ploughshares, disc rakes and rotary cultivators can be simulated, and the comparison is realized by simultaneously installing the coating sample and the uncoated sample.
The present invention is capable of other embodiments, and various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (12)
1. The utility model provides a coating wear-resisting and shock resistance comprehensive properties evaluation device which characterized in that, this evaluation device includes:
a base plate;
the soil test box is arranged on the bottom plate and is used for filling simulation test soil;
the rotating device is arranged on the bottom plate and comprises a driving system and a rotating system, and the driving system provides power for the rotating system;
the lifting device is arranged on the bottom plate and used for lifting the rotating system of the rotating device; and
the multi-specification coating test samples are arranged on the rotating system of the rotating device and extend into the soil test box, and can rotate and do planetary motion along with the rotation of the rotating system.
2. The apparatus of claim 1, further comprising a soil firmness sensor and a soil moisture sensor, which are disposed in the soil of the soil test chamber for accurate simulation and verification of soil conditions.
3. The device for evaluating the wear resistance and impact resistance of a coating according to claim 1, wherein the driving system comprises a variable frequency motor, a speed reducer, a telescopic transmission shaft and a driving gear; the variable frequency motor and the speed reducer are fixed on the bottom plate and are connected with the driving gear through the telescopic transmission shaft, and the driving gear is driven by the variable frequency motor, the speed reducer and the telescopic transmission shaft so as to realize stepless speed regulation.
4. The device for evaluating the comprehensive properties of wear resistance and impact resistance of a coating according to claim 3, wherein the telescopic transmission shaft is composed of an inner shaft and a closely matched outer shaft, the inner shaft is connected with the speed reducer, and the outer shaft is connected with the driving gear, so that the transmission torque is realized, and the lifting motion of the driving gear is not influenced.
5. The apparatus for evaluating the combination of wear resistance and impact resistance of a coating according to claim 4, wherein the outer shaft of the telescopic transmission shaft comprises a coupling, a transmission shaft and a bearing seat sequentially connected from bottom to top.
6. The apparatus for evaluating the combination of wear resistance and impact resistance of a coating according to claim 3, wherein the rotary system comprises a gear plate, at least two gear shafts, a gear wheel, a rotary plate and an overlaying wheel set; the gear disc is fixed on the rotating disc and meshed with the driving gear, so that the rotating disc can be driven by the driving gear to rotate; the upper end of the gear shaft is arranged on the rotating disc through an outer spherical surface bearing seat, and the lower end of the gear shaft is provided with an internal spline, so that the multi-specification coating sample can be mounted or dismounted in the gear shaft; the large gear is arranged below the rotating disc; the covering pressing wheel set comprises a soil covering wheel and a soil pressing wheel, the soil covering wheel set is fixed below the rotating disk through a supporting rod, and the covering pressing wheel set and the gear shaft are arranged on the same circumference in a 90-degree-difference crossed mode.
7. The apparatus for evaluating the combination of wear resistance and impact resistance of a coated steel sheet according to claim 6, wherein the multi-gauge coated steel sheet has a coating layer on one surface and a spline shaft on the other surface, and the spline shaft is inserted into the gear shaft and self-locked to be engaged with the gear wheel.
8. The apparatus for evaluating the combination of abrasion resistance and impact resistance of a coating according to claim 7, wherein the specification pattern of one end of the multi-specification coating sample surface where the coating is prepared is a standard cylinder, cone, diamond or cylindrical spiral.
9. The apparatus for evaluating the wear resistance and impact resistance of a coating according to claim 6, wherein the elevating means comprises a slide positioning block, a slide positioning plate, a guide system, a screw elevator and a motor; the sliding positioning disc is fixed below the gear disc through the sliding positioning block, and the sliding positioning disc is lifted through the spiral lifter below the sliding positioning disc and is oriented by the guide system; the screw elevator and the motor driving the screw elevator are mounted on the base plate through a bracket.
10. The apparatus for evaluating the combination of abrasion resistance and impact resistance of a coating according to claim 9, wherein the guide system comprises two sets of guide shafts and guide sleeves distributed on both sides of the soil test chamber; the guide sleeve is arranged on the bottom plate and fixed on the periphery of the soil test box, and the guide shaft is tightly matched with the guide sleeve through two groups of sliding bearings at the upper end of the guide sleeve.
11. The device for evaluating the combination of wear resistance and impact resistance of a coating according to claim 10, wherein the sliding locating block is an annular engineering plastic sliding locating block, and the sliding bearing is a thermoplastic sliding bearing.
12. A method for evaluating the comprehensive performance of wear resistance and impact resistance of a coating is carried out by utilizing the device for evaluating the comprehensive performance of wear resistance and impact resistance of the coating, and is characterized by comprising the following steps:
1) lifting the lifting device to lift the rotating system and install the multi-specification coating sample under the rotating system; loading simulation test soil for simulation verification in the soil test box;
2) descending the lifting device to lower the rotating system and insert the multi-specification coating samples into the simulated test soil;
3) starting the driving system of the rotating device to drive the rotating system to rotate, driving the multi-specification coating sample to start to rotate in the simulated test soil of the soil test box and perform planetary motion along with the revolution of the rotating device, and then restoring the turned-up simulated test soil to the original state by the pressing wheel covering group which is arranged on the same circumference with the multi-specification coating sample in a crossed manner;
4) when the revolution of the rotating system reaches the set revolution, stopping the operation of the device, taking down the multi-specification coating sample, observing the abrasion and the surface of an impacted part of the multi-specification coating sample, weighing, and measuring the weight loss condition;
5) and recording the surface abrasion and weight loss conditions of the multi-specification coating sample, and evaluating the coating effect.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235616A (en) * | 2022-02-24 | 2022-03-25 | 艾瑞森表面技术（苏州）股份有限公司 | Coating testing equipment and coating testing method |
| WO2024088331A1 (en) * | 2022-10-26 | 2024-05-02 | 中国农业机械化科学研究院集团有限公司 | Soil-touching component impact and abrasive wear test bed and test method therefor |
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