Classification of disc ploughs

disc ploughAccording to the disc installation can be divided into ordinary and vertical. There is a deflection angle of 10~30 ° between the rotation plane of the common disc plow and the forward direction of the vertical disc plow, which plays the role of bulldozer and enhancing the ability of the disc to enter the soil. The plane of rotation of an ordinary disc plow is not perpendicular to the ground, but is slightly inclined. There is an angle between the rotating plane and the vertical line of the ground, generally about 30 ° to 45 °. An ordinary disc plow with an inclination angle is represented by the acute angle between the horizontal diameter of the disc and the line of the forward direction. It can make the disc easy to cut soil, lift and flip. Disc plows Usually, a scraper is installed behind and above the concave surface of the disc to prevent soil from sticking. The spatula surface also assists in turning.




Verticaldisc ploughThe rotating surface of the disc is perpendicular to the ground, with only a deflection angle and no inclination. The vertical disc plough has a small disc, and there are many discs on a plough (the number of discs on a large vertical disc plough can reach 30 to 40), which is mainly used for shallow tillage and stubble removal. It can also be equipped with seed boxes and fertilizer boxes for joint operations of tillage and fertilization.
Ordinary disc plow and two-way disc plow can turn left and right. The plow beam on which the plow post is mounted can swing horizontally from left to right relative to the plow frame to accommodate the reversal of the disc. The reversing control mechanism may be mechanical or hydraulic. The two-way disc plow allows the soil to turn all the way to one side of the field, leveling the surface after plowing, leaving no gullies.
Drive typedisc ploughIt was developed in some countries in the 1980 s. The tractor power output shaft drives the group of discs to rotate at a speed of about 120 r/min, which has a good effect of turning the soil. Used in wetlands and rice stubble land, can make full use of tractor power.planterThe use also needs attention.

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The correct use and maintenance of the disc harrow: in operation, the technical condition of the rake, scraper, square shaft, bearing, angle adjuster and connecting parts should be checked frequently, especially the end nut of the disc harrow group and the fixing bolts of each bearing. If it is found loose, tighten it in time, and remove the weeds and dirt on the workpiece in time.

How to maintain planter accessories

Planter A planting machine using crop seeds as a planting object. Planters for a certain type or crop are usually named after the crop type, such as wheat planter, cotton planter, etc. Planter accessories are very effective in farmland operations, so the planter accessories are easily damaged. Next, the planter manufacturer will introduce how to maintain the planter accessories. Before using the planter, we should have a simple and comprehensive understanding of the principles of all planter accessories. The planter manufacturer stated that it can be effective as long as the maintenance is carried out on the correct accessories to ensure the normal use of the planter accessories. The planter will extend its life.

Defects in castings and forgings

The defects produced in the casting and forging process are similar to the defects produced in the ingot, but they are still process defects, including pores, inclusions, shrinkage holes, loose holes, cracks, etc.

Production of castings and forgings

Castings and forgings must be melted by electric furnaces, mainly electric arc furnaces and induction furnaces. According to the different lining materials and slag system, can be divided into acidic furnace and alkaline furnace. Carbon steel and low alloy steel can be smelted in any furnace, but high alloy steel can only be smelted in alkaline furnaces.

Inspection of Casting and Forging

The complex information system management interface of casting and forging, such as poor ultrasonic penetration, coarse grain, uneven organization, etc., all enhance the scattering of an ultrasonic wave by students, and the energy can be effectively attenuated, so that the detectable thickness is smaller than that of forgings.

What are the advantages and disadvantages of casting and forging

One of the advantages of casting and forging is the flexibility of design. Personnel design has a large degree of freedom of design choice for the shape and size of castings, especially for parts with complex shapes and hollow sections. Steel castings can be manufactured using a unique process known as core assembly.