RU172842U1 - STAND FOR ACCELERATED TESTS OF WORKING BODIES OF SOIL PROCESSING MACHINES - Google Patents

Abstract

The utility model relates to agricultural machinery, in particular bench equipment for accelerated testing of the tillage working bodies of agricultural and land reclamation machines. The stand contains a frame on which the gutter with soil is mounted rotatably from the drive, and there is also a bracket for attaching the tested working bodies and devices for leveling and compacting the soil in the gutter, the gutter is made in the form of a cylinder with a vertical wall, the diameter of which is greater than the height of the cylinder. The bracket for fastening the tested working bodies, equipped with a force measuring sensor, has the ability to rotate around its vertical axis by 180 ° together with the working bodies, as well as raising / lowering the tested working bodies using pneumatic cylinders. Effect: improving the quality of tests by ensuring uniform wear of the working bodies. 3 ill.

Description

The invention relates to testing equipment, in particular to stands for testing tillage working bodies.

The purpose of the utility model is to improve the quality of tests by ensuring uniform wear of the working bodies.

Known bench for testing for abrasive wear of the working bodies of tillage machines, containing a movable conveyor, with sealed devices and an additional conveyor that provides continuous circulation [1] and installation for testing the working bodies of agricultural machines, containing a moving trolley, a bearing frame, racks and drive [2 ]. A stand for accelerated testing of tillage tools, containing a frame on which the gutter with soil is mounted rotatably from the drive, and also has a bracket for attaching the tested tools and devices for leveling and compacting the soil in the gutter, the gutter is made in the form of a cylinder with a vertical wall and corrugated base, the diameter of which is greater than the height of the cylinder, and the trough drive in rotation has a pinion gear with a pair of sprockets mounted on diametrically arranged opposite to the outside of the gutter, vertical shafts, and with rollers fixed by axes, located between the annular tires, which are placed on the outer vertical wall of the cylinder, while the gutter is mounted in the frame for rotation with it between pairs of radial bearings diametrically disposed one relative to the other and uniformly elements of horizontal support removed from one another, and the bracket for fastening the tested working bodies is made in the form of a U-shaped beam located along the diameter of the gutter, onto which Oh, with the possibility of displacement along it, grips are installed for attaching the said working bodies and devices for leveling and compacting the soil. [3].

The disadvantages of the known stands is their large metal consumption, energy consumption and, most importantly, the uneven wear of the tested working bodies.

The technical result is achieved in that the bracket for attaching the tested working bodies, equipped with a load sensor, has the ability to rotate around its vertical axis together with the working bodies by 180 °, as well as raising / lowering the tested working bodies using pneumatic cylinders.

In FIG. 1 shows a stand for accelerated testing of working bodies of tillage machines (side view), FIG. 2 stand for accelerated testing of working bodies of tillage machines (top view), in FIG. 3 shows a pneumatic cylinder for raising / lowering the tested working bodies.

The accelerated test bench contains a groove 1 with soil 2, an electric motor 3, a gearbox 4 and a bevel gear 5, a supporting frame 6. The groove 1 is mounted on an angular contact bearing 7 with the possibility of rotation on the lower rollers 8 and side rollers 9. The working bodies 10 are fixed by means of struts 11, in pneumatic cylinders 12, mounted on the beam 13. There is an electric motor 14, sprockets 15 and a chain 16. There are also seals 17 and a shortener 18.

The stand for accelerated wear tests works as follows.

Before testing, the soil trench is freed from the soil. When the gearbox 4 is neutrally transmitted by effort, the human hands rotate the soil chute 1. When seizing, the position of the side rollers 9 and the lower rollers 8 are adjusted accordingly. Then, the grooves 1 are filled with soil with a layer 2–3 times the travel depth of the tested working bodies 10. Next, first reduced gear reduction 4. When the electric motor 3 of the chute drive 1 is turned on, rotation is transmitted through a multi-stage gear 4 to bevel gear 5. Bevel gears have the same direction of rotation I am. A pair of forces at the contact points of the rollers 9 create a moment of forces relative to the horizontal axis, and the rollers 8 of the vertical axis of symmetry of the soil groove 1. Successively increase the gear number and check the rotation of the soil groove 1, increasing the peripheral speed of the soil groove 2 from 0.5 to 30 km / h . Further, depending on the test program, the test working bodies 10 are installed in the bracket 11. The depth of the test working body 10 is set by moving its rack in the bracket 11. In the same way, the position of the packer roller 16 for compaction of the soil is set, with the only difference that the roller moves along soil surface. The displaced soil by the working body 10 is returned to its original position by the earthenware 17 to level the soil. The uniform distribution of the displaced soil over the surface of the soil trough is achieved by selecting the appropriate angle for setting the zagrotcha 17.

The rotation of the groove 1 together with the soil 2 in a wide range of operating speeds allows for accelerated comparative tests for wear of the working bodies 10 and traction resistance.

When a comparative energy assessment of the tested working bodies 10 in the bracket 11 set the load cell to determine the components of traction resistance (not shown).

The stand provides a pneumatic cylinder for deepening and turning the working bodies 10, to automate the testing process and uniform wear of the working bodies. After a certain number of operation cycles of the installation in a given direction, using pneumatic cylinders 12, it is necessary to raise the working bodies 10 by 10 ... 15 cm from the depth of penetration, thereby deepening them from the soil. Next, turn on the electric motor 14, and betray the rotation of the circuit 16, which in turn rotates the sprockets 15 and rotates the working bodies 10 through 180 °. The lower part of the pneumatic cylinder 12 is made in the form of a cone, so when lowering the rod, the working bodies 10 will be rigidly fixed. The rotation of the working bodies 10 by 180 ° will create uniform wear of the less wear part of the working bodies to uneven before turning to the center of rotation. The rotation cycles (electric motor), the raising and lowering of the working bodies (pneumatic cylinders), the rotation of the working bodies by 180 ° (electric motor) are controlled by the controller.

The stand for accelerated testing of the working bodies of tillage machines allows you to improve the quality of testing by ensuring uniform wear of the working bodies of tillage machines.

Sources:

1. A.S. No. 1587417 A1 G01N 3/56

2. A.S. No. 1629779 A1 G01M 19/00, 15/00

3. Patent for invention No. 2078325 RU, stand for accelerated testing of tillage working bodies, G01M 19/00, published on 01/27/1997

Claims (1)

A stand for accelerated testing of the working bodies of tillage machines, containing a frame on which the gutter with soil is mounted rotatably from the drive, and there is also a bracket for attaching the tested working bodies and devices for leveling and compacting the soil in the gutter, the gutter is made in the form of a cylinder with a vertical a wall whose diameter is greater than the height of the cylinder, characterized in that the bracket for attaching the tested working bodies, equipped with a load sensor, has the ability to rotate around with Oei vertical axis together with the working bodies at 180 °, and the lifting / lowering test working organs via the pneumatic cylinders.

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