CN102007836A - Air-aspiration type composite straw returning machine - Google Patents

Abstract

An air-suction compound straw returning machine, including a stubble remover, is characterized in that a support frame is arranged on the stubble remover, a fan is installed on the support frame, and the fan drives the power input wheel of the stubble remover through a transmission belt; the air inlet of the fan is connected in a figure-eight shape Two main suction ports, the main suction port is connected to two auxiliary suction ports on the left and right in a figure-eight shape; the fan outlet is a circular column, and a material guide cylinder that can rotate around it is assembled on it. The advantage of the present invention is that the crushed straw covered on the ground is sucked into the fan by using the negative pressure of the fan, and guided to the field return ditch on the side through the material guide cylinder, so as to prepare for the subsequent deep burial of the straw, and it can be used with the existing general-purpose The stubble cutter is combined together and is conveniently connected to the tractor. One operation can achieve the deep return and surface return of straw. It is convenient to concentrate on improving soil fertility and the decomposition and maturity of straw, with high work efficiency and low power consumption.

Description

Air Suction Straw Composite Returning Machine

technical field

The invention relates to an agricultural machine, in particular to an air-suction compound straw returning machine, which can suck up broken corn or other crop straws on the surface through a fan and direct them into the returning ditch. Carry out stubble removal and return to the field.

Background technique

At present, after the crops are harvested, the straw can be returned to the field, thereby increasing the organic matter content in the soil, changing the soil from compacted to loose, increasing air permeability and water permeability, and improving drought resistance and moisture conservation. However, there are still some problems in the process of returning the existing stubble machines. For example, the straw returning to the field is shallow, and the depth of straw entering the soil in most plots is less than 20 cm, so it is not conducive to the decomposition and maturity of the straw, which affects the root system of the crops; and there are crops. The contradiction between seedlings and straw decomposing and competing for water appeared, resulting in the phenomenon of yellow seedlings and dead seedlings. A better solution is the deep returning technology of straw, that is, to open a ditch of 40 to 50 cm, then introduce the straw into the ditch, and then make a ridge to bury the straw deeply, so as to improve the fertility of the soil and the concentration of the straw. However, how to guide the straw within a certain width on both sides of the deep ditch into the return ditch, there is still a lack of corresponding equipment with high collection efficiency and low power consumption.

Contents of the invention

In order to meet the agronomic requirements of deep straw returning to the field, the present invention provides a field returning machine that uses the negative pressure of the fan to absorb straw debris, and can be combined with the existing general-purpose stubble removing machine, and is conveniently connected with a tractor. Achieve the deep return and surface return of straw.

The technical solution adopted by the present invention to solve its technical problems is: comprising a stubble remover, characterized in that: a support frame is set on the stubble remover, a fan is installed on the support frame, and the fan drives the power input wheel of the stubble remover through a transmission belt; the air inlet of the fan is connected to There are two main suction ports in a splayed shape, and the main suction port is connected to two auxiliary suction ports on the left and right in a splayed shape; the fan outlet is a circular column, and a material guide cylinder that can rotate around it is assembled on it.

Two locating pins are respectively arranged on the support frames on both sides of the blower fan, one locating pin is a movable locating pin, the locating pin is connected with the pull rod, and a compression spring is arranged on the locating pin.

The above-mentioned two auxiliary material suction ports are movably set on the lower end of the main material suction port, and adjusting screws and adjusting elongated mounting holes are arranged at the joints.

The invention has the advantages that: the negative pressure of the fan is used to suck the crushed straw covered on the ground into the fan, and lead it to the field return ditch on the side through the material guide cylinder, so as to prepare for the subsequent deep burial of the straw, and it can be used in common with the existing ones. The special stubble cutter is combined together, and it is conveniently connected with the tractor. One operation can achieve deep returning and surface returning of straw. It is convenient to concentrate on improving soil fertility and the decomposition and maturity of straw, with high work efficiency and low power consumption.

Description of drawings

Figure 1 is a schematic diagram of the general assembly of the present invention.

Figure 2 is a schematic diagram of the installation structure of the main suction port and the auxiliary suction port.

Figure 3 is a schematic diagram of the structure of the main suction port.

Fig. 4 is a schematic diagram of the supporting mechanism of the material guide cylinder and the outlet of the fan.

Fig. 5 is a schematic diagram of the assembly of the guide cylinder and the fan.

The serial numbers of parts in the attached drawings: material guide cylinder 1, fan 2, support frame 3, main suction port 4, long installation hole 4-1, auxiliary suction port 5, stubble remover 6, fan bracket 7, handle 8 , Pull rod 9, guide cylinder 10, movable positioning pin 11, limit pin 12, pressure plate 13, transmission belt a, power input wheel b.

Detailed ways

Example shown in Figure 1-5, a support frame 3 is set on the stubble remover 6, a fan 2 is installed on the support frame 3 through a fan bracket 7, and the input shaft of the fan 2 drives the power input wheel b of the stubble remover 6 through the transmission belt a; The air inlet is connected to two main suction ports 4 in a splayed shape, and the lower end of the main suction port 4 is set in a splayed shape. There are two auxiliary suction ports 5 on the left and right. Adjusting screws and adjusting elongated mounting holes 4-1 are set at the connection. The outlet of the blower is a short vertical cylinder (as shown in Figure 4), on which a material guide cylinder 1 that can rotate around it is assembled, that is, the material guide cylinder 1 is provided with a circumferential installation flange, and a pressure plate with an inner flange is adopted 13 Press the mounting flange of the material guide cylinder 1 onto the outlet plane of the blower fan, fix the pressing plate 13 on the outlet plane with screws, and the material guide cylinder 1 can realize rotation.

Two locating pins 11, 12 are respectively arranged on the support frames 3 on both sides of the fan, one locating pin 11 is a movable locating pin, and the locating pin 11 is assembled on the guide cylinder 10, and the compression of the pop-up locating pin is assembled in the guide cylinder 10. Spring (not represented among the figure, is conventional technology), this positioning pin 11 connects pull bar 9, and the lower end of pull bar 9 establishes handle 8.

Working principle: The fan is driven by the power of the stubble cutter, and the negative pressure generated by the fan is used to suck the crushed straw covered on the ground into the fan through the suction port through the auxiliary suction port 5 and the main suction port 4, and then through the guide The material cylinder 1 is discharged into the straw returning ditch on one side to prepare for the subsequent deep burial of the straw, and the stubble growing on the ground is processed by the stubble cutter; when the material guide cylinder 1 rotates, the handle 8 is pressed down , drive the pull rod 9 to go down along the guide cylinder 10, and the movable positioning pin 11 retracts. When the material guide cylinder 1 is rotated to the position and positioned, it is supported by the support frame 3 to prevent the material guide cylinder 1 from working unstable and falling and causing the fan outlet to be short and vertical. One side is stressed too much, and when the material guide cylinder is limited, the handle 8 is released, and under the action of the compression spring of the guide cylinder 10, the movable positioning pin 11 pops out to limit the material guide cylinder 1 to rotate.

When the machine returns to work, push the material guide cylinder 1 to rotate so that it faces the return collection ditch, and support and limit the position through the side support rod; when the machine stops returning to the field, push the material guide cylinder 1 to the middle support The rod (not shown in the figure, the support rod in the middle) is supported and limited for transportation;

The example shown in Figure 1 can work on the width of four ridges, as shown in Figure 2, each suction port of the auxiliary material suction port 5 is facing the furrow of a ridge, and the auxiliary material suction port 5 is installed with the main material suction port shown in Figure 3 The height from the ground can be adjusted vertically, so that the suction of the fan can be adjusted, so as to avoid excessive suction, sucking too much floating soil, affecting the performance of the fan and speeding up the wear of the fan, or causing the broken straw to be unable to be sucked into the field ditch due to too small suction. Inside. The broken straw within the working width is sucked up and introduced into the return ditch on one side, and the stubble remover breaks up the stubble growing on the surface within the working width and returns it to the field, completing the surface stubble removal and returning operation.

Claims (3)

1. the compound field-returning machine of air-sucking type stalk comprises stubble cleaner, it is characterized in that: bracing frame is set on stubble cleaner, blower fan is installed on the bracing frame, blower fan is by the power input wheel of driving-belt transmission stubble cleaner; The air inlet of blower fan connects two main material sucking ports of class splayed, and main material sucking port connects two auxiliary material sucking ports about the class splayed; The blower fan outlet is circular cylindrical shape, and assembling can be around the guide tube 1 of its rotation on it.

2. the compound field-returning machine of air-sucking type stalk according to claim 1 is characterized in that: two alignment pins respectively are set on the bracing frame of blower fan both sides, and an alignment pin is a loose pin, and this alignment pin cylinder lever connecting rod is provided with the compression spring on the alignment pin.

3. the compound field-returning machine of air-sucking type stalk according to claim 1 is characterized in that: two auxiliary material sucking port movable sets are provided with the adjustment screw and adjust microscler installing hole in the lower end of main material sucking port in the junction.

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