CN216116795U - Adjustable lifting type soil tank test bed for detecting performances of multiple test platforms - Google Patents

Abstract

The utility model discloses an adjustable lifting type soil tank test bed for performance detection of various test platforms. The automatic reciprocating of the test platform can be realized through a PLC feedback system, an elastic baffle, a plane pressure sensor, a light screen and an infrared grating signal alarm. The performance detection of various test platforms at different moments can be realized through a three-axis vibration intelligent sensor, a torque sensor, a symmetrical COMS high-speed camera, a data transmission device, MATLAB modeling software and an image acquisition device. The test platform is suitable for a transplanting mechanism module, a rotary tillage module and a seed metering module, and all the modules can meet test requirements through the functions, control and detection. The simulation test has the advantages of strong detection adaptability, good test continuity, high test efficiency, real and reliable test detection data and reasonable test equipment floor area.

Description

Adjustable lifting type soil tank test bed for detecting performances of multiple test platforms

Technical Field

The utility model relates to the technical field of agricultural machinery, in particular to an adjustable lifting soil box test bed for detecting the performance of various test platforms.

Background

The purpose of building the soil tank test bed is to provide an advanced test platform and a detection means for key parts and complete machine performance in the cultivation process of the farmland operation machinery. The soil tank test bed can artificially design corresponding required working conditions according to the working environment and field working conditions of the agricultural machinery, carry out experimental research and performance test on key parts or the whole agricultural machinery, and carry out data acquisition and analysis on the performances or working parameters of the machinery such as vibration, speed, acceleration, torque, ploughing and transplanting depth (rotary tillage depth, sowing depth and transplanting depth) during working through an acquisition system of an instrument, so that the mechanical performance, the working quality and the working efficiency are improved. Compared with field tests, the soil tank test bed has the advantages that the test cost is reduced, the working environment is controllable, all-weather tests can be performed, the test research period is shortened, the influence of accidental factors of the external environment is reduced, and the test reliability can be improved.

The existing soil box test bed is generally used for tests and performance tests of specific field operation machines and parts thereof, and the single soil box test bed for the agricultural machine has large limitation and is influenced by factors such as unidirectional working characteristics, test fields and the like. Therefore, aiming at the defects of the existing soil box test bed and meeting the performance test requirements of different test platforms, a comprehensive soil box test bed which is available for various machines and tools, can be lifted, has high test performance detection precision and complete functions is required to be designed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to make up the defects of the prior art and provides an adjustable lifting type soil box test bed for detecting the performance of various test platforms.

The utility model is realized by the following technical scheme:

an adjustable lifting type soil box test bed for detecting the performance of a plurality of test platforms comprises a soil box base, a soil box, a lifting support and the test platforms, wherein the soil box is fixedly arranged on the soil box base, a guide wheel is arranged below the soil box base, the lifting support is positioned on the outer side of the top of the soil box, the lower side of the lifting support is connected with the soil box base through a plurality of threaded screws and lifting screws, a first motor driving device is arranged on the soil box base and used for driving the lifting screws to move and driving the lifting support to move up and down, the test platforms are arranged on the lifting support, racks are respectively arranged on two sides of the upper part of the lifting support, roller beds are respectively fixed on two inner sides of the lifting support, rollers are respectively arranged on two sides below the test platforms, and a second motor driving device is arranged on the test platforms, the second motor driving device is connected with traveling gears which are positioned on two sides of the test platform, and drives the traveling gears to travel on racks of the lifting support and drive the rollers to travel in the roller way; the high-speed camera is respectively installed on the left side and the right side of the test platform, the light screen is installed at the front end of the test platform, the infrared grating signal alarms are respectively installed on the left side and the right side of the lifting support, the elastic baffles are respectively installed at the front end and the rear end of the lifting support, and the plane pressure sensors are installed on the elastic baffles.

The control system is further included, and the control end of the first motor driving device, the control end of the second motor driving device, the high-speed camera, the infrared grating signal alarm and the plane pressure sensor are all connected with the control system.

The test platform is provided with a rice transplanter module, a seed metering device module or a rotary tillage module, a triaxial vibration intelligent sensor for detecting vibration generated in the process of pushing seedlings by seedling claws of the rice transplanter module, a torque sensor for detecting rotary tillage cutter shafts of the rotary tillage module and a displacement sensor for measuring inter-seed hole distances of the seed metering device module, and a variable frequency speed regulating motor which is respectively used for providing different rotating speeds for the rice transplanter module, the seed metering device module and the rotary tillage module and is also connected with a control system.

The first motor driving device comprises a first driving motor, the first driving motor is connected with the lifting screw rod through a T-shaped steering gear, and the first driving motor is connected with the control system.

The second motor driving device comprises a second driving motor, the output power of the second driving motor is transmitted to a driven gear through a driving gear, the driven gear drives a driving shaft, a walking gear is meshed with a rack, the driving shaft drives the test platform to walk on a roller way, and the second driving motor is connected with a control system.

A pair of soil temperature and humidity sensors are arranged in the soil groove.

The control system comprises a PLC feedback system, MATLAB modeling software, a computer and an operation box. The control system realizes the forward movement, the backward movement and the stop of the test platform and the operation of the three motors. The test platform is suitable for a transplanting mechanism module, a rotary tillage module and a seed metering module.

The COMS high-speed cameras which are symmetrically arranged on two sides of the test platform are used for recording the motion trail of the tip end of a seedling needle and capturing the vibration amplitude generated at the moment that the seedling needle pushes seedlings when a transplanting arm in the transplanting mechanism works. The COMS high-speed camera is also used for recording the number of grains sowed by the seed sowing device during working, transmitting the collected grain number image to computer MATLAB software through the image collecting device for programming processing, and obtaining a corresponding grain number distribution diagram. The COMS high-speed camera is used for recording the movement track of the endpoint of the rotary blade when the rotary blade is used for rotary tillage of soil.

The control method comprises the following steps: (1) when the test platform works, the light screen passes through the RJA10-GS680 type infrared grating signal alarm, the RJA10-GS680 type infrared grating signal alarm is triggered by the light screen, and an alarm signal is transmitted to a feedback system in a PLC in a computer.

(2) And the tester receives the alarm signal and turns on a stop button of a driving motor II on the operation box through the control system, and the test platform walking device stops working.

(3) As the inertia test platform collides with the elastic baffle plate to trigger the plane pressure sensor PLD610, sensing signals are transmitted to a feedback system inside the PLC in the computer through analog quantity output by the transmitter.

(4) The tester receives the induction signal and starts the stop button of the variable frequency speed control motor and the retreat button of the driving motor through the control system, and the test platform can return to the initial position on the original way.

The driving motor II provides walking power for the test platform, the vertical distance of the lifting support moving up and down is controlled through the driving motor I, and the variable-frequency speed regulating motor provides different rotating speeds for the transplanting mechanism module, the rotary tillage module and the seed sowing module during soil box test.

The principle of the utility model is as follows: the soil tank, the lifting support and the soil tank base are assembled into a soil tank test bed, and the transplanting mechanism module to be tested or the rotary tillage module or the seed sowing module is arranged on the test platform. Taking a transplanting mechanism module as an example, adjusting the position of the transplanting mechanism on a test platform to ensure that a transplanting arm can accurately take and transplant rice seedlings from a seedling box, a gear is arranged at the two shaft ends of a driving motor and is meshed with a walking gear train of the test platform to drive the test platform to walk on a soil box test bed, a variable frequency speed regulating motor transmits power to a T-shaped steering gear through a pair of bevel gears in a transmission box, then the T-shaped steering gear transmits the power to a transmission shaft of the transplanting mechanism and a pair of chain wheels on a screw shaft of a box shifting mechanism respectively, the chain wheels provide power for the transverse and longitudinal seedling feeding of the box shifting mechanism, a three-shaft vibration intelligent sensor arranged on the transplanting arm transmits acquired signals to a control system through a data transmission device and then transmits the signals to a computer through the control system, MATLAB software is used for processing and analyzing the acquired signals, and a symmetrical COMS high-speed camera arranged on the test platform, shooting the moving tracks of the tips of the seedling needles of the left and right transplanting mechanisms and the vibration points generated instantly when the seedling needles push the seedlings in real time, collecting the shot images by using an image acquisition device, processing the images by using an image editor (ACDSee Photo Manager), converting the processed images into a seedling needle moving track graph by using an MATLAB programming program in a computer, analyzing the speed and acceleration curve graphs of the seedling needles of the transplanting mechanisms on the computer by using a mathematical model and a programming block diagram, driving a motor to drive a lifting device of a soil tank test bed, adjusting the vertical distance between the soil tank and the test platform when the test platform works according to the requirement of the test platform on the soil tank height, triggering an alarm signal when the test platform works through an RJA10-GS680 type infrared grating, transmitting the signal to a detection device, and transmitting the signal to a computer control system through a feedback system in a PLC (programmable logic controller), the tester opens the stop button of the driving motor II through the control system, the test platform walking device stops, the inertia can continuously move forward for a distance, at the moment, the test platform can stop by the elastic baffle, the elastic baffle is provided with the plane sensor, the test platform triggers the sensing device, a sensing signal is transmitted to the control system through the PLC feedback system, the tester opens the stop button of the variable-frequency speed-regulating motor and the reverse button of the driving motor II according to the signal, and the test platform can return to the initial position in the original way to wait for the next test.

The utility model has the advantages that: firstly, the advantages and the characteristics of the existing soil tank test equipment are integrated. (1) The soil tank test bed is formed by assembling a soil tank base, a soil tank and a lifting support, and is convenient to disassemble, transport and install; (2) compared with the existing soil tank test equipment, the lifting support overcomes the defect that the contact between the soil height in the soil tank and the test farm tool is insufficient in function.

And secondly, the soil tank test bed can be used for different walking modes of various test platforms. (1) The rice transplanter test platform travels in a way that a lifting system rack is meshed with a traveling gear, and a roller is positioned above a roller way. (2) The running mode of the seed metering device test platform unloads the rack of the lifting system, and the roller is arranged on the roller path of the lifting support. (3) The rotary tillage test platform is in a walking mode that a rack of a lifting system is meshed with a walking gear, and a roller is located between two roller ways. The problem that the existing soil box test equipment is limited to a test platform is solved by different walking modes.

And thirdly, the test platform is provided with a test system for detecting the working performance parameters of the test part. (1) The working performance parameters of the agricultural implement to be tested are accurately obtained, and the working mechanism of the agricultural implement to be tested is comprehensively analyzed. (2) All testing devices (the three-axis vibration intelligent sensor, the torque sensor and the temperature and humidity sensor) are integrated, so that the testing link is simplified, and the operation of testing personnel is facilitated.

And fourthly, installing a self-testing device on the soil tank test bed to realize the automatic operation of the test platform. (1) When the test platform works on the soil tank test bed, the test platform can automatically complete a series of working condition actions (advancing, retreating, stopping, detecting and controlling) and automatically return to the initial position.

And fifthly, adjusting the vertical distance (rotary tillage depth, rice transplanting depth and seeding depth) between the soil tank and the test platform when operating according to the requirements of the performance tests of different agricultural machinery test platforms on the soil tank height.

And sixthly, the detection and control devices of different test machines are integrated on the same test platform, so that the problem that performance detection can be completed on the same test platform by various test racks is solved, and a multipurpose soil tank test bench is realized.

The adjustable lifting soil tank test bed for detecting the performance of various test platforms has the advantages of reasonable structural design, compact space arrangement, good test continuity, high efficiency, reliable simulation detection data and reasonable floor area of test equipment.

Drawings

FIG. 1 is a schematic structural view of an earth tank test bed of the present invention.

FIG. 2 is a front view of the soil bin test stand of the present invention.

FIG. 3 is a top view of the soil bin test stand of the present invention.

FIG. 4 is a left side view of the soil bin test stand of the present invention.

Fig. 5 is a partially enlarged view of the soil tank test bed of the rice transplanting module of the present invention.

FIG. 6 is a schematic structural diagram of a test platform according to the present invention.

FIG. 7 is a schematic view of the structure of the operation box of the present invention.

FIG. 8 is a flow chart of the inspection control system of the present invention.

Detailed Description

To further clarify the technical solution and technical object of the present invention, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1-8, an adjustable lifting soil box test bed for performance detection of multiple test platforms is provided, which comprises: soil box base 6 is formed by the welding of a plurality of square long steel, is the frame construction of cuboid on a parallel with ground, has welded 6 "day" font supports in the middle for support soil box 1, 6 leading wheels 12 of frame lower part both sides distribution, leading wheel 12 passes through the bolt and installs at soil box base 6, is used for the walking and the location of soil box test bench. Soil box 1 is formed by the iron sheet welding, arranges soil box base 6 in above, lifting support 7 is "mouthful" shape by a plurality of square long steel material welding, arranges in soil box 1's outside, with soil box base 6 is connected through screw lead screw 10, lifting lead screw 9, rack 8 is equipped with to lifting support 7 upper portion both sides, and the inboard has welded roll table 17. The test platform is installed on the lifting support 7, and the normal walking of the test platform 2 on the soil box test bed is realized through the different installation modes of the gear walking device installed on the test platform 2 and the rack 8 and the roller 32 and the roller way 17.

The test platform 2 is provided with a rice transplanter module, a seed metering device module or a rotary tillage module, a triaxial vibration intelligent sensor 22 for detecting vibration generated by seedling claw pushing of the rice transplanter module, a torque sensor for detecting a rotary tillage cutter shaft of the rotary tillage module and a displacement sensor for measuring the hole distance of the seed metering device module, wherein the sensors are arranged on a left side base plate of the test platform 2 and comprise a testing device, a display device 31, a detachable Z-shaped support 30, a sensor and a transmission line. The test platform is provided with a variable frequency speed regulating motor 25, the variable frequency speed regulating motor 25 respectively provides different rotating speeds for the rice transplanter module, the seed sowing device module and the rotary tillage module, and the variable frequency speed regulating motor 25 is also connected with a control system.

The lifting support 7 comprises a first driving motor, a first T-shaped steering gear 15, a transmission shaft 13, a Tr22 lifting speed reducer 14, a lifting screw rod 9 and a threaded screw rod 10. The driving motor I16 is connected with the T-shaped steering gear I15 through a coupler, the T-shaped steering gear I15 is installed on the soil box base 6 and is connected with the transmission shaft 13, the transmission shaft 13 is connected with the Tr22 lifting reducer 14, the Tr22 lifting reducer 14 is installed on the soil box test bed base and is connected with the lifting screw 9, and the lifting screw 9 is installed on the lifting support 7 and is fixed through bolts. The roller way is welded on the inner side of the lifting support. The rack is installed on the lifting support and is fixed through a bolt.

The working process of the test platform 2 for installing the transplanting mechanism module on the soil tank test bed is further described in detail. The control system comprises a PLC feedback system, MATLAB modeling software, a computer and an operation box 5. The control system realizes the forward movement, the backward movement and the stop of the test platform and the operation of the three motors. The power switch 38 is started, the whole soil box test bed is in a working state, the control system is used for opening the driving motor II 19 on the operation box 5 to move the button 40 and the variable frequency speed control motor starting button 39, the test platform 2 moves on the soil box test bed, the walking gear 33 of the test platform 2 is transmitted to the driven gear 34 through the driving gear 35 by the output power of the driving motor II 19, the driven gear 34 drives the driving shaft 36 fixed by the bearing seat II 37, and the walking gear 33 is meshed with the rack 3 to enable the test platform 4 to walk on the roller way 17 under the driving of the driving shaft 36. The transplanting mechanism arranged on the test platform 2 transmits power output by a variable frequency speed regulating motor 25 to a transmission case 18 through a belt, the transmission case 18 transmits the power to a T-shaped speed steering gear II 20 through the belt, the T-shaped speed steering gear II 20 transmits the power to a rotating shaft connected with a coupler on one hand, the rotating shaft is fixed on the test platform 2 through a bearing seat I26, a chain wheel on the rotating shaft drives a screw shaft of the transplanting mechanism through a chain, the screw shaft provides power for the transverse and longitudinal seedling feeding of the transplanting mechanism, on the other hand, the power is transmitted to a driving device of the transplanting mechanism, the driving device is arranged on a base of the test platform, the driving device drives a transplanting arm 23 of the transplanting mechanism to take and transplant seedlings from a seedling box 24, and a signal collected by a three-shaft vibration intelligent sensor 22 arranged on the transplanting arm 23 is transmitted to a control system through a data transmission device, then the signals are transmitted to a computer by a control system, MATLAB software is used for processing and analyzing the acquired signals, a symmetrical COMS high-speed camera 27 arranged on a test platform is used for shooting the moving tracks of the tips of seedling needles of a left transplanting mechanism and a right transplanting mechanism and vibration points generated at the moment when the seedling needles push seedlings, an image acquisition device is used for collecting the shot images, an image editor (ACDSee Photo Manager) is used for processing the images, an MATLAB programming program in the computer is used for converting the processed images into a seedling needle moving track graph, then a mathematical model and a programming program diagram are used for analyzing the speed and acceleration curve graphs of the seedling needles of the transplanting mechanisms on the computer, a driving motor I16 drives a T-shaped steering gear I15 by a lifting device driving a soil box test bench, power drives the T-shaped steering gear I15 by a coupler, the T-shaped steering gear I15 is transmitted to a Tr22 lifting reducer 14 by a lifting transmission shaft 13, the Tr22 lifting reducer 14 drives the lifting screw rod 9 to adjust the vertical distance between the soil tank and the test platform when the test platform works according to the requirement of the test platform on the soil tank height. When the test platform works through the RJA10-GS680 type infrared grating signal alarm 3, the light screen 21 triggers an alarm signal, the signal is transmitted to the detection device, then the signal is transmitted to the computer control system through the feedback system in the PLC, a tester opens the stop button 28 of the driving motor II through the control system, the test platform walking device stops, the test platform stops due to the fact that inertia moves forwards for a certain distance continuously, the test platform stops at this time due to the elastic baffle, the elastic baffle 4 is provided with the plane sensor, the test platform triggers the sensing device, the sensing signal is transmitted to the control system through the PLC feedback system, the tester opens the stop button 11 of the variable frequency speed control motor and the reverse button 29 of the driving motor II according to the signal, and the test platform can return to the initial position as it is and waits for the next test. The buttons are provided on the operation box 5. The operation box is also provided with a driving motor-stop button 41, a driving motor-overturn button 42, a driving motor-forward button 43 and a water valve starting button 44.

While particular embodiments of the present invention have been described, it is to be understood that the utility model is not limited to the precise embodiments described above, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope of the appended claims. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims (6)

1. The utility model provides an adjustable over-and-under type soil box test bench for multiple test platform performance detects which characterized in that: the soil tank is fixedly arranged on the soil tank base, a guide wheel is arranged below the soil tank base, the lifting support is positioned outside the top of the soil tank, the lower side of the lifting support is connected with the soil tank base through a plurality of threaded lead screws and lifting lead screws, a first motor driving device is arranged on the soil tank base and drives the lifting lead screws to move to drive the lifting support to move up and down, the test platform is arranged on the lifting support, racks are respectively arranged on two sides of the upper part of the lifting support, roller ways are respectively fixed on two inner sides of the lifting support, rollers are respectively arranged on two sides below the test platform, a second motor driving device is arranged on the test platform and is connected with walking gears, and the walking gears are positioned on two sides of the test platform, the motor driving device II drives the traveling gear to travel on the rack of the lifting support, and drives the roller to travel in the roller way; the high-speed camera is respectively installed on the left side and the right side of the test platform, the light screen is installed at the front end of the test platform, the infrared grating signal alarms are respectively installed on the left side and the right side of the lifting support, the elastic baffles are respectively installed at the front end and the rear end of the lifting support, and the plane pressure sensors are installed on the elastic baffles.

2. The adjustable lifting soil box test bed for performance detection of multiple test platforms according to claim 1, wherein: the control system is further included, and the control end of the first motor driving device, the control end of the second motor driving device, the high-speed camera, the infrared grating signal alarm and the plane pressure sensor are all connected with the control system.

3. The adjustable lifting soil box test bed for performance detection of multiple test platforms according to claim 2, wherein: the test platform is provided with a rice transplanter module, a seed metering device module or a rotary tillage module, a triaxial vibration intelligent sensor for detecting vibration generated in the process of pushing seedlings by seedling claws of the rice transplanter module, a torque sensor for detecting rotary tillage cutter shafts of the rotary tillage module and a displacement sensor for measuring inter-seed hole distances of the seed metering device module, and a variable frequency speed regulating motor which is respectively used for providing different rotating speeds for the rice transplanter module, the seed metering device module and the rotary tillage module and is also connected with a control system.

4. The adjustable lifting soil box test bed for performance detection of multiple test platforms according to claim 2, wherein: the first motor driving device comprises a first driving motor, the first driving motor is connected with the lifting screw rod through a T-shaped steering gear, and the first driving motor is connected with the control system.

5. The adjustable lifting soil box test bed for performance detection of multiple test platforms according to claim 2, wherein: the second motor driving device comprises a second driving motor, the output power of the second driving motor is transmitted to a driven gear through a driving gear, the driven gear drives a driving shaft, a walking gear is meshed with a rack, the driving shaft drives the test platform to walk on a roller way, and the second driving motor is connected with a control system.

6. The adjustable lifting soil box test bed for performance detection of multiple test platforms according to claim 1, wherein: a pair of soil temperature and humidity sensors are arranged in the soil groove.

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