CN201188751Y - Combined straw chopping rotary tiller - Google Patents

Abstract

The utility model provides a combined straw chopping rotary cultivator. The basic structure includes a frame mounted in front of the tractor, a straw cutter mounted on the frame, and a rotary cultivator mounted behind the tractor. It is characterized in that: The straw shredder is equipped with a straw throwing and gathering baffle at the throwing opening of the rolling cutter, and the straw throwing area of the rolling cutter is interlaced with the rotary tiller attached to the rear of the tractor, and the belt is rotary tilled. The utility model can complete the chopping and breaking of corn stalks in the field and the belt-shaped rotary tillage of the sowing belt at one time.

Description

A Combined Straw Chopping Rotary Tiller

technical field

The utility model relates to a combined straw chopping rotary cultivator, which belongs to the technical field of agricultural seeding machinery.

Background technique

Wheat and corn are the main crops in northern my country. The traditional farming system is to sow wheat after returning corn stalks to the field for plowing in autumn. Straw chopping and returning to the field is one of the main ways of comprehensive utilization of crop straws. It can improve soil structure, enhance soil water and fertilizer retention capacity, and increase soil organic matter content. It can also make full use of straw resources, reduce straw burning, and protect the environment. The commonly used method of straw returning to the field in China is mainly to use combined harvesting machinery to chop the harvested straw, and then use the plow or rotary tiller for secondary operations to turn the straw into the soil to achieve the purpose of cutting the straw and returning it to the field. ; Existing machines and tools often have to perform secondary operations to complete the agronomic requirements of straw returning to the field. The disadvantages are increased operating costs, high compaction of the soil, and low operating efficiency, which also affects the popularization and application of straw returning technology and machines. The outstanding problems are that the cutting effect of corn stalks is inconsistent, the power consumption is large, the vibration is severe, and the pulverizer cannot penetrate into the soil; although the rotary tiller has a strong ability to break stubble into the soil, the crushing effect on the surface straw is not ideal, and it is easy to block After rotary tillage, the straw is mixed into the soil to affect the moisture retention of crops. Therefore adopt pulverizing knife or rotary tiller device to make tractor once enter the land operation and complete the implement of straw chopping and rotary tillage operation, there is no mature product or research report in China.

Contents of the invention

The purpose of the utility model is to provide a combined straw cutting rotary cultivator which is matched with a medium-sized tractor and can not only crush the upright long straw on the ground surface, but also break the stubble at the same time, and has low power consumption. The belts form a staggered distribution, and the field corn crushing and stubble breaking and belt rotary tillage operations are completed at one time.

The technical scheme of the utility model is realized in the following way: the basic structure of this combined straw chopping rotary tiller includes a frame mounted in front of the tractor, a straw chopping machine set on the frame and a rotary tiller mounted behind the tractor. The mechanical structure is characterized in that: the straw shredder is provided with a straw throwing and gathering baffle at the throwing opening of the rolling cutter, and the straw throwing area of the rolling cutter is arranged alternately with the rotary tiller attached to the rear of the tractor, and the belt is rotary tilled.

In the combined straw chopping rotary tiller, the rotary tiller is distributed at intervals in the axial direction of the rotary tiller, and a no-tillage belt is arranged in the middle.

The combined straw chopping rotary tiller, the straw chopping machine is composed of the imitation ground wheel arranged at the front of the frame, the grain divider, and two pairs of feeding rollers arranged under the grain divider. The reel is composed of a group of rolling cutters arranged under the frame and rotating in the same direction as the tractor travels, a straw gathering baffle fixed on the frame and a fixed cutter arranged at the end of the baffle.

In the combined straw shredding rotary cultivator, the hob cutter is composed of a plurality of T-shaped shovel-type cutter heads, which are evenly distributed radially on the cutter shaft through the cutter shafts.

In the combined straw chopping rotary tiller, the feeding rollers are symmetrically arranged with straight ribs.

The technical progress effect of the utility model is manifested in that corn stalks are chopped, strip-shaped stacked, seed belt rotary tillage and other operations are completed in one operation. The rolling cutter and the fixed cutter are used to crush the straw on the sowing belt, which can not only crush the long straight straw on the ground surface, but also have the function of picking up and crushing the lodging straw on the ground surface. Straw throwing is provided with a straw gathering cover, and the chopped straw is stacked in a 200mm wide strip area. Rotary tillage blades are set at intervals for less tillage work, and the uncultivated land accounts for 41.4% of the working width, which can save tractor power.

Description of drawings

Figure 1 is a schematic diagram of the structure of the combined straw chopping rotary tiller

Figure 2 is a top view of Figure 1

Figure 3 is a partial enlarged view of the hob cutter

Figure 4 The three-dimensional assembly diagram of the combined straw chopping rotary tiller

In the figure: 1. Imitation ground wheel 2-1, fixed cutter 2-2, rolling cutter 3, gathering baffle 4, rotary tiller 5, reel 6, grain divider 7, feeding roller 8 , gearbox 9, frame

Detailed ways

Fig. 1 and Fig. 2 are structural diagrams of the utility model. The combined straw chopping rotary tiller is composed of a straw chopping machine and a belt rotary tiller. The straw chopping machine is arranged at the front of the tractor, and its lifting is driven by the tractor cylinder. The belt-shaped rotary tiller is arranged at the rear of the tractor, and its lifting is driven by the rear lifting device of the tractor.

The straw shredder of the utility model is composed of a frame 9, a rotary rolling cutter 2-2, a strip-shaped fixed knife 2-1, a feeding roller 7, a grain divider 6, a straw gathering baffle 3 and a profiling ground wheel. 1, the tractor is used as the driving force to drive the roller cutter wheel equipped with sharp blades to rotate, and at the same time, the feeding roller 7 with straight ribs is set to rotate, and the straw is input between the roller cutter 2-2 and the fixed cutter 2-1. Cut to realize the chopping of straw and save power. The straw collecting device is located behind the straw chopping device, and the chopped straw is stacked in a 200mm wide strip area through gathering baffles 3 .

When the combined straw shredding rotary tiller is working, the supporting cylinder is in a relaxed state, and the straw shredder is supported by the profiling ground wheel to control the working depth of the rolling cutter. When transporting in the field, the supporting cylinder lifts the straw shredder Finally, lower the contoured ground wheel to prevent the cylinder from malfunctioning. In order to ensure the chopping effect of the stalks, a grain lifter 6 can be installed on the front of the tractor during operation to comb the corn stalks smoothly.

The rotary tiller blades of the utility model are distributed at intervals in the axial direction, and a no-tillage belt corresponding to the straw throwing belt is arranged in the middle. The rotary tiller can also be equipped with a fertilization device. The fertilization device is located in front of the rotary tiller, and the seeding belt is applied in a belt before the rotary tillage; Rotary tillage, the depth of rotary tillage is 6-8cm.

The combined straw chopping rotary tiller of the utility model can complete the chopping and breaking of corn stalks in the field at one time, and carry out strip rotary tillage on the sowing belt. Supporting straw chopping and less tillage operations.

The examples listed in the utility model are intended to further clarify the operation process of the combined straw chopping rotary cultivator, without any limitation to the protection scope of the utility model.

Claims (5)

1. A combined straw chopping rotary cultivator, the basic structure of which includes a frame (9) mounted in front of the tractor, a straw cutter mounted on the frame and a rotary cultivator mounted behind the tractor, characterized in that The straw shredder is provided with a straw throwing and gathering baffle plate (3) at the throwing opening of the rolling cutter, and the straw throwing area of the rolling cutter is interlaced with the rotary tiller mounted on the rear of the tractor, and the belt is rotary tilled. 2. The combined straw chopping rotary tiller according to claim 1, characterized in that: the rotary tiller is distributed at intervals in the axial direction of the rotary tiller, and a no-tillage belt is arranged in the middle. 3. The combined straw chopping rotary cultivator according to claim 1, characterized in that: said straw chopping machine is sequentially composed of a profiling ground wheel (1) arranged at the front of the frame (9), The grain divider (6), two pairs of feeding rollers (7) and the reel (5) arranged under the grain divider, and a group of rolling cutters arranged under the frame (9) and rotating in the same direction as the tractor travels Knife (2-2) and the stalk gathering baffle plate (3) that is fixed on the frame and the fixed cutter (2-1) that baffle plate end are provided with constitute. 4. The combined straw chopping rotary tiller according to claim 1, characterized in that: the hob cutter is a plurality of T-shaped hoe-shovel-type cutter heads that are evenly distributed radially on the cutter shaft through the cutter bar constitute. 5. The combined straw chopping rotary tiller according to claim 3, characterized in that: said feeding rollers (7) are symmetrically provided with straight ribs.

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