CN204443134U - A kind of air negative pressure differential cutter head leaf grain header - Google Patents

Abstract

The utility model discloses an air negative pressure differential speed cutter head leaf harvester, which comprises a tubular machine head, a collection box, a negative pressure machine, a corrugated pipe, a support pipe and a trolley. The invention utilizes air negative pressure transmission to drive and realize the differential rotation of multiple sets of cutting blades of the tubular head, thereby realizing multiple cuttings of leaves to obtain smaller leaf fragments, and collecting and processing the cut leaf fragments. The utility model can not only realize the harvesting of leaves and twigs of the glabra tree in a large space range, but also can be widely used in the pruning of jungles and shrubs in the field of landscaping, and realizes the integrated operation of harvesting, pruning and collection, greatly improving Reduce labor intensity and improve work efficiency.

Description

An air negative pressure differential speed cutter head leaf harvester

technical field

The invention relates to an air negative pressure leaf harvester, in particular to a differential-speed leaf harvesting cutter head, which is widely used in the harvesting and collection of forage leaves of trees such as eucalyptus glabra, as well as the pruning of horticultural jungles and shrubs, and belongs to the field of agricultural and forestry machinery .

Background technique

Guangyechu is a variety of the genus Moraceae that has been selected and bred from wild paper mulberry in Japan in recent years. Its bark and trunk are high-quality paper-making raw materials; its leaves are fodder and rich in nutrition. According to the measurement, the crude protein content of the leaves of Mulan glabrata is 23.48% (twice that of bran), and contains trace elements such as copper, iron, zinc, manganese, etc. It is a high-quality feed for animals and fish.

Planting glabra is a short, flat and fast project for rural prosperity. The glabra belongs to an ultra-short rotation tree species. The harvesting cycle is 1 year. It has high economic and social benefits, and the promotion prospect is very broad. Guangyechu can be used all over the body. The bark fiber is white and slender. It is a high-grade papermaking and textile raw material with high value and large market demand. The wooden pole is a good raw material for the production of ordinary paper and fiberboard; the leaves are rich in crude protein , amino acids, and trace elements are high-quality feed for animals; sprouts can also be used as health food. C. glabra can grow in various site conditions in subtropical and northern temperate zones. Now in the subtropical regions of my country, there have been large-area high-density fast-growing forests for paper-making industry raw materials of eucalyptus glabra, and the use of non-test tube high-efficiency rapid propagation technology to accelerate the rapid propagation of eucalyptus glabra is a good project to quickly bring my country's agriculture into the track of economic globalization.

Due to the ease of planting and fast growth, especially the improved leaf growth cycle and long collection time of the leaves of the glabra, in recent years, there has been a large planting area in the vast rural areas of our country, and it is showing an increasing trend.

The existing method of harvesting the leaves of the glabra leaves is usually directly pulled by hand, which is labor-intensive and inefficient during harvesting. For high leaves, it is necessary to use ladders and other working tools, which is not conducive to safe and efficient picking. On the other hand, pulling leaves manually often hurts the buds, which is unfavorable for the continuous periodic growth of leaves. Therefore particularly need a kind of efficient, safe glabra leaf harvesting device.

In the field of landscaping, most of the pruning of horticultural jungles and shrubs also use simple hand-held tools; the pruning of taller trees also requires the operator to use auxiliary devices such as ladders; the pruned leaves or twigs are scattered on the ground, It is not easy to collect and handle, and the pruning efficiency is low. Such as the Chinese invention patent "horticultural pruning machine" (ZL200410002699.1) discloses a gardening pruning machine for trimming shrub branches. Driven by the impeller, the invention throws broken branches and leaves out of the discharge port of the cutter head cover and enters the collection machine. Although the work efficiency of the box is improved compared with manual work, the two transmission wheels of this invention are connected by a transmission belt. The transmission load capacity of the belt is relatively poor. It is suitable for pruning higher plants, and a single blade cannot determine complete cutting; although the pruning machine disclosed in the Chinese invention patent "Water Spraying, Flower Pruning Electric Vehicle" (ZL200910161625.5) is driven by a DC motor, it integrates pruning, blowing, water spraying, etc. Multiple functions in one, but the pruned branches and leaves scattered on the ground need to be cleaned up manually again, which is inefficient.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the existing methods and products, to provide a simple and practical glabra leaf harvester, which can be widely used in the pruning of jungles and shrubs in the field of landscaping.

The technical solution implemented by the present invention is: an air negative pressure differential cutter head harvester, comprising a tubular head, a collection box, a negative pressure machine, a trolley and a pipeline; the negative pressure machine is an exhaust fan or a vacuum pump, and the collection The box is a box with a sealed cover. The negative pressure machine and the collection box are fixedly connected to the trolley. One end of the collection box is connected to the negative pressure machine by a pipeline, and the other end of the collection box is connected to the tubular head through a pipeline. ; It is characterized in that: at least two groups of coaxial cutting heads are arranged side by side inside the tubular head, each group of cutting heads includes a fixed cutting head and a rotating cutting head, and the rotating cutting head is composed of at least two fan-like It consists of leaf-shaped arc cutting blades, which are symmetrically installed on the circumference, and the inner arc edges of the arc cutting blades have serrated edges, and the fixed cutter heads are at least three Straight ribs with cutting edges, the serrated cutting edge on the rotating cutter head and the cutting edge on the fixed cutter head form a shearing surface. Its working principle is: when the negative pressure machine is working, the external air is sucked into the machine head, and then sucked to the air outlet at the other end of the negative pressure machine through the connecting pipe, collection box, and the air inlet of the negative pressure machine. The rotating cutter head produces a rotating motion under the action of the wind, cutting and sucking the outer blades into the collection box for storage.

The above-mentioned air negative pressure differential cutter head leaf harvester is characterized in that: when there are two or more groups of cutting heads in the head, from the outside of the head to the inside of the head, the rotating head The windward angle of the blade-shaped curved surface of the fan is reduced from a large step to a small one. The beneficial effect is that the rotation speeds of multiple sets of rotating cutter heads decrease step by step from the outside to the inside due to the difference in the windward angle, realizing the differential rotation of the rotating cutter heads, which is beneficial to further cutting and thinning the blades.

The above-mentioned air negative pressure differential cutter head leaf harvester is characterized in that: the outermost first fixed cutter head of the machine head and the tubular shell of the machine head are connected with each other by a buckle structure, and each group inside the machine head is connected with each other. The shaft cutting cutter heads are fixed by shaft retaining rings. Its beneficial effect is: favorable disassembly and replacement of each group of cutter heads, for different leaves, leaf structures are different, different harvesting cutter heads can more effectively harvest leaves, so the function of the harvester is greatly expanded.

The air negative pressure differential speed cutter head leaf harvester as described above is characterized in that: a layer of fine mesh collection bag is placed inside the collection box to collect leaves without affecting the flow of air, and when the leaves are full, , easy to replace.

Working principle of the present invention is:

(1) Using the principle of vacuum adsorption, it integrates negative pressure transmission, cutting and collection, and realizes the simple and easy collection of leaves. The leaves are adsorbed into the cutting head, and the cut leaves or twigs are passed through the air. The negative pressure pipeline is transported to the aggregate collection box;

(2) The cutting blade of the cutting head is driven by air negative pressure transmission, and the leaves or twigs adsorbed in the cutting head are cut and separated from the branches.

(3) There are multiple groups of cutting blades installed in the cutting head, each group of blades can rotate independently under the action of air negative pressure, and each group of blades adopts different structures and parameters to realize differential movement, so as to cut the first group of blades The lower leaves or twigs are further cut to obtain smaller leaves or twig fragments, so as to pass through the negative pressure pipeline smoothly.

(4) The support rod between the head of the harvester and the bellows is made into a hollow rod structure, the front part is used to support and fix the cutting head, and the rear part can be used as a hand-held part at the same time, which can carry out leaf cutting in a large space. The harvesting and collection process is also the circulation channel for the blades to enter the collection box driven by the wind.

The beneficial effects of the present invention are:

(1) The air negative pressure differential cutter head leaf harvester described in the present invention can not only realize the harvesting of leaves and tender branches in a large space range, but also can be widely used in the pruning of jungles and shrubs in the field of landscaping , which realizes the integrated operation of harvesting, pruning and collection, which can greatly reduce labor intensity and improve work efficiency.

(2) The present invention uses a negative pressure machine to achieve negative pressure transmission, which is different from the existing motor direct connection or belt-driven cutter heads, and adopts two sets of coaxial differential cutter heads to better cut the leaves. There are a fixed cutter head and a rotating cutter head, which constitute the scissors cutting method to prevent the single rotating cutter head from driving the leaves to turn and get stuck.

(3) The curved surface of the blade adopts the structure of the fan blade of a wind turbine. Compared with the ordinary curved surface structure, it is easier to rotate under the action of wind.

(4) The cut leaves are directly sent to the collection box by the airflow, which is convenient for collection and utilization; at the same time, the cutter head part is easy to replace.

(5) The device is applicable to trees of different heights. Because of the bellows connection, for higher places, due to the negative pressure, the leaves will be moved to the front of the cutter head, and the support pipe has the effect of lengthening the distance.

(6) The shape of the whole device is similar to that of a vacuum cleaner, which is smaller than existing machines and is easy to use and store. Moreover, the negative pressure leaf harvester has a simple structure, and the negative pressure machine behind it is driven by a trolley, which is movable and easy to use. Good practicality.

Description of drawings

Accompanying drawing 1 is the overall schematic diagram of air negative pressure differential speed cutter head harvester.

Accompanying drawing 2 is a schematic diagram of the internal structure of the machine head.

Accompanying drawing 3 is the overall axonometric view of the air negative pressure differential speed cutter head harvester.

In the figure, negative pressure machine 1, corrugated pipe with filter screen 2, collection box 3, corrugated pipe 4, trolley handle 5, support rod 6, tubular head 7, wheel 8, fixed cutter head 9 of the first group, and One set of rotary cutter heads 10 , the second set of rotary cutter heads 11 , the second set of fixed cutter heads 12 , the shaft 13 , the casing 14 , the retaining ring 15 for the shaft, and the rolling bearing 16 .

Detailed ways

As shown in Figure 1, the present invention mainly consists of negative pressure machine (1), collection box (3), corrugated pipeline (2,4), dolly handle (5), support tube (6), tubular nose (7), Car composition. The rear end of the tubular head (7) is connected to one end of the support rod (6), the other end of the support rod is connected to the corrugated pipe (4), the other end of the corrugated pipe is connected to the collection box (3), and the collection box is connected to the negative pressure machine ( 1) are connected by a corrugated pipe (2), and the bellows contains a filter, the negative pressure machine and the collection box (3) are fixedly placed on the trolley, and the negative pressure machine is located at the rear of the collection box, in the collection box A mesh collection belt is installed, a handle (5) is arranged in front of the trolley, and a universal wheel (8) is arranged in the lower part.

As shown in Figure 2, at least two groups of coaxial cutting heads are arranged side by side inside the tubular head of the present invention, and each group of cutting heads includes a fixed cutting head and a rotating cutting head, and the rotating cutting head is composed of at least two fan-like It consists of leaf-shaped arc cutting blades; the arc cutting blades are symmetrically installed on the circumference, and the inner arc edge of the arc cutting blades has a serrated edge; the fixed cutter head is at least three blades with edges evenly distributed on the circumference Straight ribs; the serrated cutting edge on the rotary cutter head and the cutting edge on the fixed cutter head form a shearing surface, and the serrated cutting edge on the rotating cutter head and the cutting edge on the fixed cutter head form a shearing surface.

As shown in Figure 3, the first group of fixed cutter heads (9) of the tubular head can be used as the front end cover of the casing (14), and are connected with each other by a buckle structure between the tubular shell of the head; Axle (13) and the center coincide, and are connected by slide bearing (16) between the axle, and axle is fixed with back-up ring between each group of coaxial cutting cutter heads inside the head.

In conjunction with the accompanying drawings, the working process of the present invention is briefly described: first open the negative pressure machine, the device generates a pressure difference with the outside world, generates airflow inside the harvester, and the generated airflow makes the cutter head rotate, because the air enters the device after the cutter head rotates The deflected airflow is turned to the axial airflow along the flow direction of the blades of the rotating cutter head. When the support rod is facing the leaves, the leaves will be sucked into the head of the harvester. Due to the different structural parameters of two or more sets of coaxial cutter heads, each group of rotating cutter heads will rotate at a differential speed and form a shear with the fixed cutter head. On the surface, the cut leaves follow the airflow into the collection box. When the collection box is full, turn off the negative pressure machine, replace the mesh collection bag, and repeat the original operation for the next collection. This method is more efficient than other harvesting methods, and the collected leaves can be reused. The first fixed cutter head and the front shell are fixed by buckles, which is convenient to replace the cutter head. For different leaves collected, the cutter head of the harvester can be replaced, which can be applied to different leaves and prevent damage to other cutter heads. , the corresponding leaves correspond to the corresponding cutter heads, which improves the efficiency and achieves the purpose of one machine with multiple functions.

Claims (5)

1. An air negative pressure differential speed cutter head leaf harvester comprises a tubular head, a collection box, a negative pressure machine, a corrugated pipe, a support pipe and a dolly, and the negative pressure machine is an exhaust fan or a vacuum pump, and the collection box It is a box with a sealed cover, and the negative pressure machine and the collection box are fixedly connected to the trolley. One end of the collection box is connected to the negative pressure machine with a corrugated pipe, and the other end of the collection box is connected to one end of the support rod through the corrugated pipe. , the other end of the support rod communicates with the tubular head; it is characterized in that: at least two groups of coaxial cutting heads are arranged side by side inside the tubular head, and each group of cutting heads includes a fixed cutting head and a rotating cutting head, so The rotary cutter head is composed of at least two arc-shaped cutting blades similar to fan blades. The arc-shaped cutting blades are symmetrically installed on the circumference, and the inner arc edge of the arc-shaped cutting blades has a serrated edge. The head is at least three straight ribs with cutting edges evenly distributed on the circumference, and the serrated cutting edge on the rotating cutting head and the cutting edge on the fixed cutting head form a shearing surface. 2. The air negative pressure differential speed cutter head leaf harvester as claimed in claim 1 is characterized in that: when the cutting cutter head in the tubular head has two groups or more than two groups, from the outside of the head to the inside of the head , the windward angle of the fan blade-shaped arc surface of the rotary cutter head becomes smaller from a large step. 3. The air negative pressure differential speed cutter head leaf harvester as claimed in claim 1, characterized in that: the outermost first fixed cutter head of the tubular head and the tubular shell of the head are connected with each other by a buckle structure, Each group of coaxial cutting heads inside the machine head is fixed by shaft retaining rings. 4. The air negative pressure differential cutter head leaf harvester as claimed in claim 1, characterized in that: said support rod is empty heart structure. 5. An air negative pressure differential speed cutter head leaf harvester according to claim 1, characterized in that: the collection box is covered with a layer of fine mesh collection bag.