CN-122016282-A - Elliptical soil trough device for testing cultivation resistance of subsoiler

CN122016282ACN 122016282 ACN122016282 ACN 122016282ACN-122016282-A

Abstract

The invention belongs to the technical field of agricultural machinery, and provides an oval soil trough device for testing the cultivation resistance of a subsoiler, which comprises a trough body, a portal frame group, a measuring part, a leveler, two driving groups and a terminal, wherein the trough body comprises an inner side track and an outer side track, soil is paved in the trough body, the portal frame group comprises a testing portal frame and a leveling portal frame, the measuring part is fixed on a beam of the testing portal frame, the leveler is fixed on the leveling portal frame, the two driving groups are respectively fixed on two upright posts of the testing portal frame and the lower ends of two upright posts of the leveling portal frame, and the driving groups are matched with the inner side track and the outer side track so as to drive the testing portal frame and the leveling portal frame to displace. The terminal is respectively connected with the measuring component and the driving piece in a communication way, and the terminal is used for receiving the measuring result of the measuring component and controlling the driving piece to work. The invention can ensure that the evenness of the soil surface in multiple tests is consistent with the initial compactness, so that the tests are repeated and reproduced.

Inventors

CHEN YU
CHENG ANQI
HE XIANTAO
YANG LI
ZHANG DONGXING
PENG XINHUA
CUI TAO
GUO ZICHUN

Assignees

中国农业大学

Dates

Publication Date: 20260512
Application Date: 20260212

Claims (10)

1. An elliptical soil box device for testing subsoiler tillage resistance, comprising: An annular groove body, an inner side rail is arranged at the outer side of the inner side plate, an outer side rail is arranged at the outer side of the outer side plate, soil is paved in the tank body; The portal frame group comprises a test portal frame and a leveling portal frame, wherein the cross beams of the test portal frame and the leveling portal frame are hinged through connecting rods; The measuring component is fixed on the cross beam of the test portal frame and is used for installing the subsoiler and measuring the resistance of the subsoiler; The leveler is fixed on the leveling portal frame and is used for leveling soil; The driving groups comprise two driving pieces, the two driving groups are respectively fixed at the lower ends of the two upright posts of the testing portal frame and the two upright posts of the leveling portal frame, and the driving groups are matched with the inner side rail and the outer side rail so as to drive the testing portal frame and the leveling portal frame to displace; and the terminal is respectively in communication connection with the measuring component and the driving piece and is used for receiving the measuring result of the measuring component and controlling the driving piece to work.
2. An elliptical soil trough device for testing subsoiler cultivation resistance as defined in claim 1 wherein said inboard and outboard tracks each include an annular support track and a rack secured to the outboard wall of the support track; The driving piece comprises a first motor and a gear, the first motor is fixed in the upright posts of the test portal frame and the leveling portal frame, the output shaft extends out of the upright posts, the gear is fixed on the output shaft of the first motor and is meshed with the rack, and the first motor rotates through the gear, so that the test portal frame and the leveling portal frame are driven to move; the first motor is in communication connection with the terminal.
3. The elliptical soil trough device for testing the cultivation resistance of the subsoiler according to claim 2, wherein annular limiting protrusions are arranged on the inner side walls of the supporting rails, sliding wheels are rotatably connected to the lower ends of the upright posts of the testing portal frame and the leveling portal frame through supporting rods, grooves are formed in the middle of the sliding wheels, the limiting protrusions are in clearance fit with the grooves, and the sliding wheels are in butt joint with the side walls of the supporting rails.
4. An elliptical soil trough device for testing subsoiler cultivation resistance as defined in claim 2 wherein said drive member further includes a planetary reducer positioned between the first motor and the gear; The planetary reducer is in communication connection with the terminal.
5. An elliptical soil trough device for testing subsoiler cultivation resistance as defined in claim 4, including a positioning member comprising: two annular magnetic encoder strips which are respectively fixed at the upper ends of the two support rails; the four encoder reading modules are respectively fixed at the lower ends of the two upright posts of the testing portal frame and the two upright posts of the leveling portal frame, and are in communication connection with the terminal; the encoder reading module is used for reading information corresponding to the magnetic encoder strips, so that positions of two stand columns of the testing portal frame and positions of two stand columns of the leveling portal frame are obtained.
6. The elliptical soil trough device for testing the cultivation resistance of the subsoiler as defined in claim 1, further comprising a first lifting component and a second lifting component, wherein the first lifting component and the second lifting component are respectively fixed on the test portal frame and the leveling portal frame, the first lifting component is fixedly connected with the measuring component and used for driving the measuring component to lift, and the second lifting component is fixedly connected with the leveler and used for driving the leveler to lift; The first lifting component and the second lifting component are both in communication connection with the terminal.
7. An elliptical soil trough device for testing subsoiler cultivation resistance as defined in claim 6, wherein said first and second lifting members each comprise: the two opposite side walls of the inner side of the supporting frame are provided with sliding grooves along the height direction; the screw rod assembly, two sides of the nut are positioned in the chute, the screw rod is arranged along the height direction, the upper end of the screw rod extends out of the supporting frame, and the leveler or the measuring component is fixedly connected with the nut; The second motor is fixed at the upper end of the supporting frame, an output shaft of the second motor is fixedly connected with the screw rod, and the second motor is in communication connection with the terminal.
8. An elliptical soil trough device for testing subsoiler cultivation resistance as defined in claim 6 wherein said measuring means comprises: The base is fixedly connected with the first lifting component, and a hook is arranged above the base; The support is fixed on the base and used for installing the subsoiler, and the middle section of the subsoiler is rotationally connected with the support; And one end of the tension sensor is connected with the hook, the other end of the tension sensor is connected with the upper end of the subsoiler, and the tension sensor is in communication connection with the terminal.
9. An elliptical soil trough device for testing subsoiler cultivation resistance as defined in claim 8 wherein said stand includes: The two support frames are positioned on two sides of the base, and bearing seats are arranged on the support frames; The two ends of the rotating rod are connected with bearings, the bearings are clamped in the bearing seats, and the subsoiler is fixedly connected with the rotating rod.
10. An elliptical soil trough device for testing subsoiler cultivation resistance as defined in claim 1 wherein said leveler is a rake.

Description

Elliptical soil trough device for testing cultivation resistance of subsoiler Technical Field The invention belongs to the technical field of agricultural machinery, and provides an elliptical soil trough device for testing the cultivation resistance of a subsoiler. Background Subsoilers are key tillage components for improving soil structure and breaking the plow bottom, and the shape of the cutting edge influences the tillage resistance, traction energy consumption and tillage effect in the advancing direction of the work. Therefore, the cultivation resistance of different shovel tip shapes is accurately researched, and the cultivation resistance has important significance for energy conservation and consumption reduction, optimization design and performance improvement of agricultural machinery. Currently, research in this area is mainly dependent on two approaches: The field test refers to a method for directly carrying out scientific research on crops, soil, agronomic measures and the like in a real farmland environment. The method is a final link of testing and evaluating laboratory or theoretical achievements under natural conditions. The method is greatly influenced by natural environment (such as soil type, humidity, density non-uniformity and weather), test conditions are uncontrollable, so that test data are greatly fluctuated, the influence of a single variable of 'shape' on resistance cannot be effectively isolated, and the method is long in test period and high in cost. Indoor soil tank test device an experimental method for simulating farmland soil conditions in a controllable indoor environment by using manually filled soil tanks (soil tanks) so as to conduct agricultural machinery, cultivation tools or soil dynamics research. The existing indoor soil tank test device comprises a linear soil tank, an annular soil tank, an elliptical soil tank and the like, and is difficult to ensure that the flatness of the soil surface in multiple tests is consistent with the initial compactness, so that the test repeatability and the reproducibility are poor. Disclosure of Invention In order to solve the technical problems, the invention provides an elliptical soil trough device for testing the tillage resistance of a subsoiler, which can ensure that the flatness of the soil surface in multiple tests is consistent with the initial compactness, so that the tests are repeated and reproduced. The technical scheme of the invention comprises the following steps: An annular groove body, an inner side rail is arranged at the outer side of the inner side plate, an outer side rail is arranged at the outer side of the outer side plate, soil is paved in the groove body. The portal frame group comprises a test portal frame and a leveling portal frame, and the cross beams of the test portal frame and the leveling portal frame are hinged through connecting rods. And the measuring component is fixed on the cross beam of the testing portal frame and is used for installing the subsoiler and measuring the resistance of the subsoiler. And the leveler is fixed on the leveling portal frame and used for leveling soil. The two driving groups comprise two driving pieces, the two driving groups are respectively fixed at the lower ends of the two upright posts of the testing portal frame and the lower ends of the two upright posts of the leveling portal frame, and the driving groups are matched with the inner side rail and the outer side rail so as to drive the testing portal frame and the leveling portal frame to move. And the terminal is respectively in communication connection with the measuring component and the driving piece and is used for receiving the measuring result of the measuring component and controlling the driving piece to work. The driving piece comprises a first motor and a gear, wherein the first motor is fixed in the upright posts of the test portal frame and the leveling portal frame, an output shaft extends out of the upright posts, the gear is fixed on the output shaft of the first motor and meshed with the gear, the first motor rotates through the gear to drive the test portal frame and the leveling portal frame to move, and the first motor is in communication connection with the terminal. Further, be equipped with annular spacing arch on the support rail's the inside wall, the stand lower extreme of test portal frame and level portal frame is connected with the movable pulley through the bracing piece rotation, is equipped with the recess in the middle of the movable pulley, spacing arch and recess clearance fit, and movable pulley and support rail's lateral wall butt. Further, the driving piece further comprises a planetary reducer, the planetary reducer is located between the first motor and the gear, and the planetary reducer is in communication connection with the terminal. Further, including positioning member, positioning member includes: Two annular magnetic encoder strips are fixed at the upper ends