Header for harvesting green soy beans

Abstract

The utility model discloses a header for harvesting green soy beans. The header comprises a frame, a harvesting head and a transmission assembly. The whole green soybean pod picking device is miniaturized and modularized, green soybean pods are separated from plants through the multiple rows of elastic teeth, the picking roller rotates around the fixed shaft, the multiple rows of arc-shaped picking elastic teeth rotate around the fixed shaft along with the roller in the same direction, and due to the fact that the front portion of the cam is in a protruding shape, when the multiple arc-shaped picking elastic teeth in each row rotate to the front portion of the cam, the green soybean pods are picked up. The lower ends are extruded, so that the upper parts of the arc-shaped picking elastic teeth are extruded outwards; when rotating to the rear portion of the cam, the upper portions of the arc picking elastic teeth contract inwards under the pulling force of the spiral compression spring, and therefore station stretching and contracting actions are achieved, green soy bean pods are separated from plants, green soy bean harvesting clamping and scraping to the ground are prevented, stable green soy bean harvesting is guaranteed, and efficient green soy bean harvesting is guaranteed. The problems that manual green soy bean harvesting is low in production efficiency, high in labor intensity and high in cost are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural machinery and relates to a cutting platform used for harvesting green soybeans. Background Art

[0002] Green edamame, also known as fresh soybean or vegetable soybean, refers to soybeans with full pods, emerald green pods and seeds, seeds that are not fully mature, and beans that are 80% to 90% of the pod. Green edamame is delicious, nutritious, uses less medicine in production, and is wrapped in pods, making it a natural, pollution-free, healthy food.

[0003] my country is the world's largest producer and exporter of edamame soybeans. Edamame has a short growth cycle and can be planted twice a year. It has a high output value and significant economic benefits. With the continuous improvement of living standards, the dietary structure has gradually changed. In addition, people's understanding of the nutritional value of edamame soybeans has deepened. The demand for edamame soybeans in the domestic and foreign markets has increased day by day. Edamame soybean production has shown huge market potential and international competitiveness. In addition, edamame soybean straw is rich in nutrients and is an excellent feed that can reduce the production costs of farmers. Therefore, it is of great significance to carry out research on edamame soybeans and develop the edamame soybean industry. There is a large gap with actual production needs.

[0004] At present, except for the harvesting stage, the mechanized technology and equipment for land preparation, sowing, fertilization and plant protection in the production of edamame in my country are relatively mature. The pod maturity characteristics of edamame are different from those of soybeans, so it is impossible to directly use the existing soybean harvester for edamame picking and harvesting operations. At present, the pod harvesting of edamame in my country basically relies on manual operation or semi-mechanized operation (that is, manual harvesting followed by centralized mechanical pod removal). The full mechanized picking and harvesting technology is still in the experimental and development stage, and there is a large gap with actual production needs. The manual harvesting of edamame has low production efficiency, high labor intensity and high cost, which seriously restricts the industrial development of edamame. With the increase in planting area and the increase in labor costs, growers are more and more urgent in their demand for mechanization of edamame production.

[0005] The "bottleneck" of the full mechanization of edamame production in my country lies in the harvesting process. The development of edamame harvesters to replace manual harvesting has become an urgent problem to be solved in the current development of the edamame industry. In recent years, some planting companies have introduced large-scale edamame harvesters from France, Japan and other countries, which can harvest, harvest and separate leaves, straws and pods of edamame at one time. However, these large harvesters have large supporting power, complex structure, large size, and high requirements for later maintenance; they are only suitable for use in large-scale farms, not suitable for operations in some small and medium-sized farmlands, and even less suitable for operations in greenhouses; the purchase price is high, and the pressure to recover costs is relatively high; due to differences in planting patterns and planting varieties, there is a problem of "not being able to adapt to the local environment".

[0006] In general, existing green soybean harvesters generally have problems such as low efficiency, high pod loss rate, high breakage rate, high impurity content and poor adaptability, and there is a lack of particularly mature models on the market. Utility Model Content

[0007] The utility model aims to provide a cutting platform for harvesting green soybeans which can effectively overcome many shortcomings of existing green soybean harvesters.

[0008] The technical solution adopted by the utility model is: the harvesting platform includes a frame, a harvesting head and a transmission component, and its characteristics are:

[0009] The lower part of the frame is provided with front and rear wheels, and the rear part is provided with a handle;

[0010] The harvesting head is installed at the front of the frame, and includes a picking roller, a fixed shaft, a cam, a sprocket and spring teeth; wherein:

[0011] The pickup roller rotates around a fixed axis, and sprockets are fixed at the center positions on both sides of the roller;

[0012] Both ends of the fixed shaft are fixedly connected to the vehicle frame;

[0013] The cam is fixed on a fixed shaft located in the inner cavity of the pickup drum, and its front part is convex;

[0014] Multiple rows of spring teeth are evenly spaced and arranged on the spring tooth mounting plate on the surface of the pickup roller, and a roller guard plate is provided between adjacent spring tooth mounting plates; each row of spring teeth is composed of multiple arc-shaped pickup spring teeth; the middle part of each arc-shaped pickup spring tooth is clamped on the spring tooth mounting plate, and the lower end penetrates into the inner cavity of the pickup roller and slides along the cam surface; the outer side of the arc-shaped pickup spring tooth inserted into the inner cavity of the pickup roller is provided with a spiral compression spring that can reset and limit it on the pickup roller;

[0015] The transmission assembly is installed on the upper part of the frame, and includes a driving device, a transmission shaft, a transmission sprocket and a chain;

[0016] Wherein: the transmission sprocket is fixed on both sides of the transmission shaft, and the transmission sprocket is connected with the sprockets on both sides of the pickup roller through a chain. The driving device drives the pickup roller to rotate around the fixed axis through the transmission shaft, the transmission sprocket and the sprocket.

[0017] Preferably, the multiple rows of spring teeth are arranged in a staggered manner in groups of three in the circumferential direction of the picking drum, and the center distance of the spring teeth is adjustable.

[0018] Preferably, there are two cams, which are centrally symmetrically mounted on the fixed shaft, and there are twelve roller guard plates, which are evenly distributed between the spring tooth mounting plates along the circumference of the picking roller, and rotary heads are respectively mounted on both sides of the fixed shaft.

[0019] Preferably, the diameter of the pickup roller is 800-1100 mm; the maximum length of the arc-shaped pickup spring teeth on each row of spring teeth extending out of the roller guard plate is 200 mm.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] The utility model is overall miniaturized and modularized. Multiple rows of spring teeth separate the green bean pods from the plants. The picking roller rotates around the fixed axis. Multiple rows of arc-shaped picking spring teeth rotate along the same direction with the roller around the fixed axis. Since the front part of the cam is convex, when multiple arc-shaped picking spring teeth on each row are rotated to the front part of the cam, the lower ends are squeezed, so that the upper parts of the arc-shaped picking spring teeth are squeezed outward; when they are rotated to the rear part of the cam, the upper parts of the arc-shaped picking spring teeth are contracted inward under the tension of the spiral compression spring, thereby realizing the extension and contraction station action, separating the green bean pods from the plants, preventing the green bean harvest from being clamped and scraped to the ground, ensuring the stability of the green bean harvest, and thus ensuring the efficient harvest of the green bean. The utility model solves the problems of low production efficiency, high labor intensity and high cost of manual harvesting of green bean. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0023] Figure 2 It is a structural schematic diagram of the utility model;

[0024] Figure 3 for Figure 2 AA section view;

[0025] Figure 4 for Figure 2 BB cross-sectional view;

[0026] Figure 5 for Figure 2 A partial enlarged view of zone II;

[0027] Figure 6 for Figure 3 A partial enlarged view of zone VI.

[0028] In the figure: 1, frame; 2, front wheel bracket; 3, front wheel support; 4, handle; 5, protective cover; 6, bracket I; 7, swivel head; 8, cam; 9, spring tooth mounting plate; 10, chain; 11, arc-shaped pickup spring tooth; 12, clip; 13, rear wheel; 14, support rod; 15, sprocket; 16, fixed shaft; 17, bearing sleeve; 18, bearing inner ring bushing; 19, bearing sleeve ring bushing; 20, front wheel; 21, support plate; 22, side protective cover; 23, chain guard; 24, transmission shaft; 25, pickup roller; 26, connecting ring; 27, transmission sprocket; 28, roller guard plate; 29, pulley; 30, bracket II; 31, spiral compression spring; 32, bearing; 33, side bracket. DETAILED DESCRIPTION

[0029] As shown in the figure, the utility model comprises a frame 1, a harvesting head and a transmission assembly.

[0030] The lower part of the frame 1 is provided with front and rear wheels 20, 13, and the rear part is provided with a handle 4. The front wheel 20 is connected to the frame 1 through a front wheel bracket 2 and a front wheel support 3 (see Figure 4 ).

[0031] The harvesting head is mounted on the front of the frame 1 and includes a pick-up roller 25, a fixed shaft 16, a cam 8, a sprocket 15 and spring teeth.

[0032] The pick-up roller 25 is composed of a cylinder and multiple spoke-shaped side brackets 33 on both sides thereof. The multiple spoke-shaped side brackets 33 on both sides are connected and supported by multiple support rods 14, and side protection covers 22 are arranged on the outer sides of the multiple spoke-shaped side brackets 33. The pick-up roller 25 is supported on the fixed shaft 16 by a bearing 32 and rotates around the fixed shaft 16. The bearing 32 is installed in a bearing sleeve 17 on the support rod 14 of the pick-up roller 25, and the inner ring is fixed on the fixed shaft 16, and the inner and outer rings are respectively provided with a bearing inner ring bushing 18 and a bearing sleeve ring bushing 19 (see FIG. Figure 6 The center positions of the multiple spoke-shaped side brackets 33 on both sides of the picking roller 25 are fixedly connected to the sprockets 15 through the connecting rings 26 respectively.

[0033] Both ends of the fixed shaft 16 are fixedly connected to the frame 1 through brackets 16.

[0034] The cam 8 is fixed on a fixed shaft 16 located in the inner cavity of the pickup roller 25, and its front portion is convex.

[0035] Multiple rows of spring teeth are evenly spaced and arranged on the spring tooth mounting plate 9 on the surface of the pickup roller 25, and a roller guard plate 28 is provided between adjacent spring tooth mounting plates 9. Each row of spring teeth is composed of a plurality of arc-shaped pickup spring teeth 11 arranged in parallel. The middle part of each arc-shaped pickup spring tooth 11 is clamped on the spring tooth mounting plate 9 through a clip 12, and the lower end is inserted into the inner cavity of the pickup roller 25, and a pulley 29 sliding along the cam surface is provided. The arc-shaped pickup spring tooth 11 can realize telescopic action when clamped by the clip 12. The outer side of the arc-shaped pickup spring tooth 11 inserted into the inner cavity of the pickup roller is provided with a spiral compression spring 31 that can reset and limit it on the pickup roller 25.

[0036] The transmission assembly is installed on the upper part of the frame 1, and includes a driving device, a transmission shaft 24, a transmission sprocket 27 and a chain 10, wherein: the transmission sprocket 27 is fixed on both sides of the transmission shaft 24, and the transmission sprocket 27 is connected to the sprockets 15 on both sides of the pickup roller 25 through the chain 10, and the driving device drives the pickup roller 25 to rotate around the fixed shaft 16 through the transmission shaft 24, the transmission sprocket 27 and the sprocket 15. The transmission shaft 24 is supported on a bracket II30, and a protective cover 5 is provided on the outer side of the bracket II30. A chain guard 23 fixed on the support plate 21 is provided on the outer side of the transmission sprocket 27, the chain 10 and the sprocket 15.

[0037] The multiple rows of spring teeth are arranged in a staggered manner, with three rows forming a group in the circumferential direction of the picking roller 25, and the center distance of the spring teeth is adjustable.

[0038] There are two cams 8, which are centrally symmetrically mounted on the fixed shaft 16; there are twelve roller guard plates 28, which are evenly distributed between the spring tooth mounting plates 9 along the circumference of the picking roller 25, and a swivel head 7 is installed on both sides of the fixed shaft 16.

[0039] The diameter of the pickup roller 25 is 800-1100 mm; the maximum length of the arc-shaped pickup spring teeth 11 on each row of spring teeth extending out of the roller guard plate 28 is 200 mm.

Claims

1. A harvesting platform for harvesting green soybeans, the harvesting platform comprising a frame (1), a harvesting head and a transmission assembly, wherein: The frame (1) is provided with a front wheel (20) and a rear wheel (13) at the lower part, and a handle (4) at the rear part; The harvesting head is mounted on the front of the frame (1), and comprises a picking roller (25), a fixed shaft (16), a cam (8), a sprocket (15) and spring teeth; wherein: The pick-up roller (25) rotates around the fixed shaft (16), and sprockets (15) are respectively fixed at the center positions on both sides of the pick-up roller; Both ends of the fixed shaft (16) are fixedly connected to the vehicle frame (1); The cam (8) is fixed on a fixed shaft (16) located in the inner cavity of the pickup roller (25), and its front part is convex; A plurality of rows of spring teeth are evenly spaced and arranged on a spring tooth mounting plate (9) on the surface of a pickup roller (25), and a roller guard plate (28) is provided between adjacent spring tooth mounting plates (9); each row of spring teeth is composed of a plurality of arc-shaped pickup spring teeth (11); the middle portion of each arc-shaped pickup spring tooth (11) is clamped on the spring tooth mounting plate (9), and the lower end thereof penetrates into the inner cavity of the pickup roller (25) and slides along the surface of the cam (8); a spiral compression spring (31) is provided on the outer side of the arc-shaped pickup spring tooth (11) inserted into the inner cavity of the pickup roller (25) so as to reset the spring tooth and limit the spring tooth on the pickup roller (25); The transmission assembly is installed on the upper part of the frame, and comprises a driving device, a transmission shaft (24), a transmission sprocket (27) and a chain (10); Wherein: a transmission sprocket (27) is fixed on both sides of a transmission shaft (24), the transmission sprocket (27) is connected to sprockets (15) on both sides of a pickup roller (25) through a chain (10), and a driving device drives the pickup roller (25) to rotate around a fixed shaft (16) through the transmission shaft (24), the transmission sprocket (27) and the sprocket (15).

2. The header for harvesting green soybeans according to claim 1, characterized in that: The multiple rows of spring teeth are arranged in a staggered manner, with three rows forming a group in the circumferential direction of the picking roller (25), and the center distance of the spring teeth is adjustable.

3. The header for harvesting green soybeans according to claim 1 or 2, characterized in that: There are two cams (8) which are centrally symmetrically mounted on the fixed shaft (16); there are twelve roller guard plates (28) which are evenly distributed between the spring tooth mounting plates (9) along the circumference of the pickup roller (25); and rotary heads (7) are respectively mounted on both sides of the fixed shaft (16).

4. The header for harvesting green soybeans according to claim 1 or 2, characterized in that: The diameter of the pickup roller (25) is 800-1100 mm; the maximum length of the arc-shaped pickup spring teeth (11) on each row of spring teeth extending out of the roller guard plate (28) is 200 mm.

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