A performance testing device for soil-contacting parts of field tillage machinery

Abstract

The present invention discloses a performance testing device for soil-contacting parts of field tillage machinery, which belongs to the field of agricultural machinery. Its main features are: it is composed of a soil-contacting part, a three-dimensional resistance sensor, a temperature sensor, an excitation source, an excitation spring, a high-speed camera and a three-dimensional strain gauge, etc., which can realize the observation and measurement of three-dimensional resistance, temperature, soil particle throwing and soil strain during the test of the soil-contacting part. The soil parameters in the soil trough can be guaranteed to be uniform and consistent, and can simulate the performance of the soil-contacting part under actual vibration conditions. This test device is rich in functions, covering the core macro and micro performance testing methods of the soil-contacting part, and can meet the optimization design and performance verification experiments of the soil-contacting part.

Description

Technical Field

[0001] The invention relates to a performance testing device, in particular to a performance testing device for soil-contacting parts of a field tillage machinery. Background Art

[0002] The working effect of field tillage machinery is directly related to the performance of its soil-contacting parts, such as tillage quality, power consumption and working comfort. Field tests of soil-contacting parts of field tillage machinery have disadvantages such as difficulty in arranging the measuring device, difficulty in supplying energy to the measuring device and inconsistent soil parameters. Therefore, soil trough test is the best test method and device.

[0003] At present, the research and development and performance optimization of soil-contacting parts of field tillage machinery mainly rely on soil trough tests. Existing soil trough tests have inconsistent soil parameters, simple and single test content, and extensive and low-end measurement means and methods, and cannot accurately reflect the working performance or mechanism of the designed soil-contacting parts through microscopic measurements.

[0004] In order to solve the above problems, the present invention provides a new technical solution. Summary of the invention

[0005] The performance testing device for the soil-contacting parts of field tillage machinery of the present invention is characterized in that it can ensure the consistency of soil parameters in the soil trough, and can perform three-dimensional resistance measurement of the soil-contacting parts of field operation machinery, temperature measurement during tillage, and observation of soil strain and soil particle movement trajectory, and has the advantages of rich functions and strong practicality.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a performance testing device for the soil-contacting parts of a field tillage machinery, characterized in that: the performance testing device for the soil-contacting parts of a field tillage machinery is composed of a frame, a frame power source, a soil-contacting part, a three-way resistance sensor, a temperature sensor, a support frame, a lower soil trough, an upper soil trough, a speed regulator, an excitation source, an excitation spring, a right cantilever, a high-speed camera, a hinge, a soil trough power source, a control box, a rotating shaft, a three-dimensional strain gauge, a left cantilever and a data collector.

[0007] The soil trough consists of an upper soil trough and a lower soil trough, and the upper soil trough and the lower soil trough are connected by a hinge.

[0008] The soil contact component, data collector, rack power source, control box and speed regulator are installed on the rack.

[0009] The temperature sensor and the three-way resistance sensor are installed on the soil contacting component.

[0010] The speed regulator is connected to the rack power source.

[0011] The excitation source is connected to the soil contact component.

[0012] The exciting spring is installed on the soil contacting component.

[0013] The three-dimensional strain gauge is installed on the left cantilever.

[0014] The high-speed camera is installed on the right cantilever.

[0015] The left cantilever and the right cantilever are installed on the soil contacting part.

[0016] The rotating shaft is connected to the supporting frame and the lower soil trough (upper soil trough) respectively.

[0017] The upper soil trough and the lower soil trough are made of transparent polyurethane plates.

[0018] Furthermore, the performance testing device for the soil-contacting parts of field tillage machinery can ensure the consistency of soil parameters in the soil trough, specifically by driving the soil trough to rotate through a soil trough power source, thereby achieving consistency of soil parameters in the soil trough, especially basic parameters such as moisture content, internal friction angle, surface energy, and particle static friction coefficient.

[0019] Furthermore, the field tillage machinery soil-contacting component performance testing device can simulate the performance of the soil-contacting component under actual working conditions, which is specifically achieved by the excitation source acting on the excitation spring and the soil-contacting component. This is consistent with the actual working condition of the soil-contacting component moving forward under vibration due to changes in soil resistance, etc.

[0020] Furthermore, the performance testing device for the soil-contacting parts of field tillage machinery can explore the relationship between the vibration of the soil-contacting parts and the viscosity reduction and soil detachment. Specifically, the vibration source acts on the vibration spring and the soil-contacting parts to achieve vibrations at different frequencies and amplitudes, and the relationship between the vibration and the viscosity reduction and soil detachment is established based on the shedding of soil on the soil-contacting parts.

[0021] Furthermore, the field tillage machinery soil contact component performance testing device can check the power consumption of the soil contact component, which is achieved based on measuring the three-way resistance of the soil contact component when it is working, specifically through a three-way resistance sensor arranged on the soil contact component.

[0022] Furthermore, the field tillage machinery soil contact component performance testing device can test the relationship between the surface temperature and wear of the soil contact component when it is working, which is achieved based on measuring the surface temperature and surface wear of the soil contact component when it is working, specifically through a three-dimensional strain gauge and a temperature sensor arranged on the soil contact component.

[0023] Furthermore, the field tillage machinery soil contact component performance testing device can test the tillage effect of the soil contact component, which is based on measuring the scattering pattern of soil particles in the soil trough when the soil contact component is working, and is specifically implemented by a high-speed camera arranged on the right cantilever.

[0024] Furthermore, the field tillage machinery soil contact component performance testing device can check the soil flatness after the soil contact component is working, which is achieved based on measuring the soil strain in the soil trough when the soil contact component is working, and is specifically implemented through a three-dimensional strain gauge arranged on the left cantilever.

[0025] Figure 1 The present invention is a front view of a device for testing the performance of soil-contacting parts of a field tillage machinery.

[0026] Figure 2 The present invention is a left view of a device for testing the performance of soil-contacting parts of a field tillage machinery.

[0027] Figure 3 The present invention is a working principle diagram of a device for testing the performance of soil-contacting parts of a field tillage machinery.

[0028] In the figure: 1. frame; 2. frame power source; 3. soil contact part; 4. three-way resistance sensor; 5. temperature sensor; 6. support frame; 7. lower soil trough; 8. upper soil trough; 9. speed regulator; 10. excitation source; 11. excitation spring; 12. right cantilever; 13. high-speed camera; 14. hinge; 15. soil trough power source; 16. control box; 17. rotating shaft; 18. three-dimensional strain gauge; 19; left cantilever; 20. data collector.

[0029] Combination Figure 1-2A field tillage machinery soil contact component performance test device of the present invention is further described. A field tillage machinery soil contact component performance test device of the present invention is composed of a frame 1, a frame power source 2, a soil contact component 3, a three-way resistance sensor 4, a temperature sensor 5, a support frame 6, a lower soil trough 7, an upper soil trough 8, a speed regulator 9, an excitation source 10, an excitation spring 11, a right cantilever 12, a high-speed camera 13, a hinge 14, a soil trough power source 15, a control box 16, a rotating shaft 17, a three-dimensional strain gauge 18, a left cantilever 19 and a data collector 20. The soil trough is composed of an upper soil trough 8 and a lower soil trough 7, and the upper soil trough 8 and the lower soil trough 7 are connected by a hinge 14. The soil contact part 3, data acquisition device 20, rack power source 2, control box 16, and speed regulator 9 are installed on the rack 1; the temperature sensor 5 and the three-way resistance sensor 4 are installed on the soil contact part 3; the speed regulator 9 is connected to the rack power source 2; the excitation source 10 is connected to the soil contact part 3; the excitation spring 11 is installed on the soil contact part 3; the three-dimensional strain gauge 18 is installed on the left cantilever 19; the high-speed camera 13 is installed on the right cantilever 12; the left cantilever 19 and the right cantilever 12 are installed on the soil contact part 3; the rotating shaft 17 is respectively connected to the support frame 6 and the lower soil trough 7 (upper soil trough 8); the upper soil trough 8 and the lower soil trough 7 are made of transparent polyurethane plates. The speed regulator 9 changes the speed of the soil contact part 3 by adjusting the speed of the rack power source 2. The control box 16 changes the speed of the soil trough power source 15. The data of the three-way resistance sensor 4, the temperature sensor 5, the high-speed camera 13 and the three-dimensional strain gauge 18 are collected and stored by the data acquisition device 20.

[0030] Combination Figure 1-3 The working principle of a performance testing device for the soil-contacting parts of a field tillage machinery of the present invention is explained. The soil trough rotates under the action of the soil trough power source 15, which promotes the uniform mixing of the soil in the soil trough and ensures that the soil parameters are uniform. When the soil-contacting part 3 is tested on the soil trough, the upper soil trough 8 is first removed to expose the upper half of the soil in the soil trough, and the soil-contacting part 3 acts on the soil under the action of the frame power source 2. When the soil-contacting part 3 is actually working, it vibrates due to changes in soil resistance, etc., and the excitation source 10 acts on the excitation spring 11 and then transmits the vibration to the soil-contacting part 3, simulating the performance of the soil-contacting part 3 under actual vibration conditions. The strain and spreading process of the soil during the working process of the soil-contacting part 3 are difficult to be observed by the naked eye, and the two are the core indicators of the performance of the soil-contacting part 3. The three-dimensional strain gauge 18 can penetrate the soil trough made of a transparent polyurethane plate to measure the soil strain during the tillage process of the soil-contacting part 3; the high-speed camera 13 follows the movement of the soil-contacting part 3 to shoot the microscopic process of soil particle spreading during the working process of the soil-contacting part 3. The resistance of the soil contacting component 3 during operation is related to its energy consumption, which can be achieved by a three-way resistance sensor 4 arranged on the soil contacting component 3. The temperature of the soil contacting component 3 during operation is related to its strength and life, which can be measured by a temperature sensor 5 arranged thereon.

[0031] The above detailed description of the present invention is intended to enable persons familiar with the art to understand the contents of the present invention and implement them. It does not limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A performance testing device for soil contacting parts of field operation machinery, characterized in that: The field operation machine soil contact component performance testing device comprises a frame (1), a frame power source (2), a soil contact component (3), a three-way resistance sensor (4), a temperature sensor (5), a support frame (6), a lower soil trough (7), an upper soil trough (8), a speed regulator (9), an excitation source (10), an excitation spring (11), a right cantilever (12), a high-speed camera (13), a hinge (14), a soil trough power source (15), a control box (16), a rotating shaft (17), a three-dimensional strain gauge (18), a left cantilever (19) and a data acquisition device (20); The soil trough is composed of an upper soil trough (8) and a lower soil trough (7), and the upper soil trough (8) and the lower soil trough (7) are connected by a hinge (14); The soil contact component (3), the data collector (20), the frame power source (2), the control box (16), and the speed regulator (9) are installed on the frame (1); The temperature sensor (5) and the three-way resistance sensor (4) are installed on the soil contacting component (3); The speed regulator (9) is connected to the frame power source (2); The excitation source (10) is connected to the soil contact component (3); The exciting spring (11) is installed on the soil contacting component (3); The three-dimensional strain gauge (18) is mounted on the left cantilever (19); The high-speed camera (13) is installed on the right cantilever (12); The left cantilever (19) and the right cantilever (12) are mounted on the soil contacting component (3); The rotating shaft (17) is respectively connected to the supporting frame (6), the lower soil trough (7), and the upper soil trough (8); The upper soil trough (8) and the lower soil trough (7) are made of transparent polyurethane plates; The field operation machinery soil contact component performance testing device can ensure that the soil parameters in the soil trough are consistent, specifically by driving the soil trough to rotate through the soil trough power source (15), thereby achieving the consistency of the soil parameters in the soil trough, especially the basic parameters such as water content, internal friction angle, surface energy, particle static friction coefficient, etc. The field operation machine soil contact component performance testing device can simulate the performance of the soil contact component (3) under actual working conditions, specifically by the excitation source (10) acting on the excitation spring (11) and the soil contact component (3), which conforms to the working conditions when the soil contact component (3) is vibrated by changes in soil resistance, etc. during actual operation; The field operation machinery soil contact component performance testing device can explore the relationship between the vibration of the soil contact component (3) and the viscosity reduction and soil detachment, specifically, by causing the excitation source (10) to act on the excitation spring (11) and the soil contact component (3) to achieve vibrations at different frequencies and amplitudes, and based on the shedding of soil on the soil contact component (3), establish the relationship between the vibration and the viscosity reduction and soil detachment; The field operation machine soil contact component performance testing device is capable of testing the power consumption of the soil contact component (3) when it is working, based on measuring the three-way resistance of the soil contact component (3) when it is working, and is specifically implemented by a three-way resistance sensor (4) arranged on the soil contact component (3); The field operation machine soil contact component performance testing device is capable of testing the relationship between the surface temperature and wear of the soil contact component (3) when it is working, based on measuring the surface temperature and surface wear of the soil contact component (3) when it is working, and is specifically implemented by a three-dimensional strain gauge (18) and a temperature sensor (5) arranged on the soil contact component (3); The field operation machine soil contact component performance testing device can test the tillage effect of the soil contact component (3) based on measuring the soil particle throwing law in the soil trough when the soil contact component (3) is working, and is specifically implemented by a high-speed camera (13) arranged on the right cantilever (12); The field operation machine soil contact component performance testing device is characterized in that: it is capable of testing the soil flatness after the soil contact component (3) is in operation, based on measuring the soil strain in the soil trough when the soil contact component (3) is in operation, and is specifically implemented by a three-dimensional strain gauge (18) arranged on the left cantilever (19); In the field operation machinery soil contact component performance testing device, the soil trough rotates under the action of the soil trough power source (15), so that the soil in the soil trough is mixed evenly, ensuring that the soil parameters are uniform; when the soil contact component (3) is tested on the soil trough, the upper soil trough (8) is first removed to expose the upper half of the soil in the soil trough, and the soil contact component (3) acts on the soil under the action of the frame power source (2); when the soil contact component (3) is actually working, it vibrates due to changes in soil resistance, etc., and the excitation source (10) acts on the excitation spring (11) and then transmits the vibration to the soil contact component (3), simulating the performance of the soil contact component (3) under actual vibration conditions; the stress of the soil during the working process of the soil contact component (3) is tested. The strain and spreading process are difficult to be observed by naked eyes, and both are core indicators of the performance of the soil contact component (3); the three-dimensional strain gauge (18) can penetrate the soil groove made of transparent polyurethane plate to measure the soil strain of the soil contact component (3) during the tillage process; the high-speed camera (13) follows the movement of the soil contact component (3) to shoot the microscopic process of soil particle spreading during the working process of the soil contact component (3); the resistance of the soil contact component (3) during the working process is related to its energy consumption, which is achieved by a three-way resistance sensor (4) arranged on the soil contact component (3); the temperature of the soil contact component (3) during the working process is related to its strength and life, which is measured by a temperature sensor (5) arranged thereon.

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