AU2021203046A1

AU2021203046A1 - Vertical green seedcase removing device with conical spiral laminated knife

Info

Publication number: AU2021203046A1
Application number: AU2021203046A
Authority: AU
Inventors: Ji CHE; Guangzan He; Changhe LI; Jiakun Li; Xinping Li; Mingzheng LIU; Tuluhon TURDI; Guoqing Wang; Kai Wang; Huimin Yang; Chentian Zhang; Ziwei ZHANG; Huayang ZHAO
Original assignee: Sichuan Jieneng Drying Equipment Co Ltd; Qingdao University of Technology
Current assignee: Sichuan Jieneng Drying Equipment Co Ltd; Qingdao University of Technology
Priority date: 2020-05-14
Filing date: 2021-05-13
Publication date: 2021-12-02
Anticipated expiration: 2041-05-13
Also published as: CN111557454A; AU2021203046B2

Abstract

The present invention discloses a vertical green seedcase removing device with a conical spiral laminated knife, including a conical funnel, the conical spiral laminated knife, a separation grid plate with a funnel, a fixed supporting mechanism, and a power 5 mechanism. The conical funnel and the conical spiral laminated knife are mounted on the fixed supporting mechanism. The conical funnel includes an upper portion and a lower portion, and the upper portion and the lower portion have different conicities. A plurality of green seedcase outlets are formed in a side wall of the upper portion of the conical funnel, and a plurality of cutting knife blades are disposed on an inner wall of the upper portion of 10 the conical funnel. Steel wire brushes are mounted on an inner wall of the lower portion of the conical funnel. The conical spiral laminated knife is located in the conical funnel, and is driven by the power mechanism to rotate in the conical funnel. The separation grid plate with the funnel is disposed under the conical funnel. 15 5/13 - - _ FIG. 5

Description

5/13

-- _

FIG. 5

VERTICAL GREEN SEEDCASE REMOVING DEVICE WITH CONICAL SPIRAL LAMINATED KNIFE BACKGROUND

Technical Field

The present invention relates to the technical field of agricultural machinery, and more particularly relates to a vertical green seedcase removing device with a conical spiral laminated knife.

Related Art

China, as a main producing country and consuming country of walnuts, has the largest cultivation area and yield in the world. The efficiency and the effects of a traditional green seedcase removal technology (hand green seedcase removal, piling green seedcase removal, chemical green seedcase removal and freeze-thaw green seedcase removal) cannot meet the walnut processing requirements. The development of mechanical seedcase removal technology and green walnut seedcase removing equipment is necessary for improving the seedcase removal efficiency and walnut quality in the walnut processing industry. The walnut green seedcase removal technology in China started late, and the patent application of walnut green seedcase removing equipment was firstly proposed in 2002. Since 2007, the development of the green walnut seedcase removing equipment in China has gradually emerged. At present, the walnut processing industry in China is small in scale and low in technical level, and is far behind that of developed countries. The walnut green seedcase removing equipment has the problems of high energy consumption, poor adaptability, and incapability of considering both removal rate and breakage rate. The industrialization, the scale, and the modernization of the walnuts in China can be effectively promoted only by optimizing the current green walnut seedcase removing equipment and further improving the edible value, medicinal value, and economic value of the walnuts.

The prior art is as follows:

The patent with the patent number of 201310608038.2 discloses an automatic screening and seedcase removing machine. A seedcase removing device includes a rotating box, a brush disc, a turntable, and a motor. A feeding inlet is formed in the top of the rotating box, the turntable is disposed in the rotating box and moves in the rotating box, the motor drives the turntable, the brush disc is disposed in the rotating box and corresponds to a position under the feeding inlet, and brush bristles matched with the turntable are disposed on a bottom surface of the brush disc to remove seedcases from walnuts with green seedcases. The machine has the advantage of high adaptability to the walnuts of different sizes, but has the defect that green seedcases at two ends of long axes of the walnuts are prone to remaining.

The patent with the patent number of 201611013136.1 discloses a vertical green walnut seedcase removing machine. According to the disclosed green walnut seedcase removing machine, a feeding hopper is disposed above a cover plate, and communicates with a cylindrical casing, a first seedcase removing mechanism and a second seedcase removing mechanism are disposed in the cylindrical casing, a water supply mechanism and a walnut outlet are disposed on the cylindrical casing, meshes are formed in a supporting seat, and a collecting pipe is disposed at the lower side. The machine has the advantage that twice seedcase removal processes are included, additionally, water is added for flushing the walnuts subjected to seedcase removal, so that the walnuts are cleanly peeled, and the completeness of the walnuts is maintained after core removal. However, the defects are that the walnuts cannot be well separated from the green seedcases, mixing is easy to occur, and secondary pollution can be caused.

The patent with the patent number of 201910580920.8 discloses progressive green walnut seedcase removing equipment with an auxiliary feeding function. A feeding hopper is fixedly connected to the top of a peeling device, and is in a reversed cone frustum shape with a bigger upper side and a smaller lower side, a pair of extrusion rollers are disposed at an opening of the lower side of the feeding hopper, a horizontal rotating shaft is fixedly connected to the middle of each of the extruding rollers, the two ends of the horizontal rotating shaft are erected on a side wall of a casing, an outer end of the horizontal rotating shaft is connected to a driving device, a rubber layer is disposed on an outer surface of each of the extruding rollers, and an auxiliary feeding device is disposed above the feeding hopper. The advantage is that green walnuts are enabled to smoothly pass through the extrusion rollers by using the auxiliary feeding device, so that the feeding of the green walnuts is ensured. The defect is that the extrusion is performed one by one, so that the feeding efficiency is low.

The study on the walnut green seedcase removing device in China started late, but develops rapidly. Particularly, since 1980s, with the continuous development of agricultural machinery and the great demand of fruit farmers on modern mechanical equipment, the walnut green seedcase removing devices are continuously developed and utilized, but the existing equipment has many defects, and cannot well adapt to market demands.

SUMMARY

In order to solve the above problems, the present invention provides a vertical green seedcase removing device with a conical spiral laminated knife integrating spiral seedcase removal and friction type cleaning. The device uses a conical spiral laminated knife and a conical funnel for removing green seedcases of walnuts. Additionally, the green seedcases are timely separated out in the seedcase removal process, so that the objectives of high seedcase removal efficiency and reduced pollution of green seedcases on the walnuts are achieved, and convenience is provided for cleaning at a later stage.

To achieve the foregoing objectives, the present invention uses the following technical solutions:

In the first aspect, provided is a vertical green seedcase removing device with a conical spiral laminated knife, including a conical funnel, a conical spiral laminated knife, a separation grid plate with a funnel, a fixed supporting mechanism, and a power mechanism.

The conical funnel and the conical spiral laminated knife are mounted on the fixed supporting mechanism. The conical funnel includes an upper portion and a lower portion, and the upper portion and the lower portion have different conicities. A plurality of green seedcase outlets are formed in a side wall of the upper portion of the conical funnel, and cutting knife blades are disposed on an inner wall of the upper portion of the conical funnel. Steel wire brushes are mounted on an inner wall of the lower portion of the conical funnel. The conical spiral laminated knife is located in the conical funnel, and is driven by the power mechanism to rotate in the conical funnel, and the separation grid plate with the funnel is disposed under the conical funnel.

As a further technical solution, the conicity of the conical spiral laminated knife is the same as the conicity of the lower portion of the conical funnel, and the conicity of the conical spiral laminated knife is a little smaller than the conicity of the upper portion of the conical funnel.

As a further technical solution, the conical spiral laminated knife includes a conical tube, and a plurality of spiral knife blades with the conicity are disposed on an outer surface of the conical tube in an axial direction of the conical tube.

As a further technical solution, the cutting knife blade is inclined for a set angle relative to an axial direction of the conical funnel.

As a further technical solution, an inclination direction of the cutting knife blade is opposite to a tangential direction of a spiral line strike of the spiral knife blade.

As a further technical solution, the separation grid plate is in a shape of being concave in the middle and convex on two sides, and one end of the separation grid plate is provided with a funnel.

As a further technical solution, a shell is disposed at an outer circle of the conical funnel, and the separation grid plate with the funnel penetrates through the shell to extend to a position under the conical funnel.

As a further technical solution, a transmission connecting shaft is disposed in the center of the conical spiral laminated knife; the conical spiral laminated knife is fixedly connected to the transmission connecting shaft; and the top of the transmission connecting shaft is connected to the power mechanism through a transmission mechanism.

As a further technical solution, a plurality of steel wire brushes are included, and are uniformly distributed on an inner wall of the lower portion of the conical funnel.

As a further technical solution, a height of the upper portion of the conical funnel is 2/3 of an overall height of the conical funnel, and a height of the lower portion is 1/3 of the overall height of the conical funnel.

Compared to the prior art, the present invention has the following advantages:

1. By using a vertical integral structure, an occupied area of equipment can be reduced, and the equipment is miniaturized. By using a vertical processing mode, from top to bottom, the processing efficiency can be improved by using a gravity factor of the walnuts per se.

2. Compared with an existing vertical processing device, the present invention is characterized in that the defects of the gravity factor are overcome while the gravity factor is utilized. By using a processing mode of the conical funnel and the spiral knife blade, accumulation of the walnuts due to the gravity, the processing efficiency reduction caused by accumulation and the pollution caused by timely separation incapability of the green seedcases on the walnuts are prevented.

3. The present invention uses the conical spiral laminated knife, such mechanism uses the principle of a screw conveyer to help the smooth walnut processing, and the influence on the processing efficiency due to accumulation and clamping of the walnuts in the processing process can be prevented. The conical spiral laminated knife is different from a single knife blade, and has the advantages that the quantity of knife blade can be greatly increased through laminating the knife blades, so that the contact probability of the walnuts and the green seedcases is increased, and the seedcase removal efficiency is greatly improved.

4. The conical funnel of the present invention includes two portions, the conicity of the upper portion is a little greater than the conicity of the conical spiral laminated knife. The tendency that the space between the conical funnel and the conical spiral laminated knife is gradually reduced can be used and cooperates with the knife blades with angles uniformly distributed on the inner wall of the conical funnel to achieve the effects of extrusion, cutting, and peeling for seedcase removal. The steel wire brushes with high elasticity are disposed on the inner wall of the lower portion of the conical funnel, and the pressure of the conical spiral laminated knife and the funnel on the walnuts can be buffered, such that the walnut damage caused by too great pressure is avoided, and the adaptive capability of the device to the walnut size is further improved.

5. Compared with an existing green seedcase removing device, the prevent invention has a continuous processing process, has higher adaptability to the market, can meet the requirements of small farmers, and can also be used for processing and production in large-scale flow line factories.

6. The existing walnut green seedcase removing device generally has the defects that the seedcase removal process and the cleaning process are not separated, which adversely affects both the green seedcase recovery and the cleaning efficiency during walnut cleaning in the processing process, increasing the water consumption during cleaning. The present invention only focuses on the walnut seedcase removal process, the processing process is refined, and the condition that a great number of green seedcases are mixed in the subsequent cleaning process to affect the cleaning can be avoided. A parallelogram-shaped hollow portion is formed in the upper portion of the conical funnel, so that the removed green seedcases can be timely separated in the seedcase removal process. Therefore, the water consumption in the subsequent cleaning process can be reduced, water resources are saved, and the green seedcases can be separated out in a solid block form, and be conveniently collected and stored.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an axonometric view of a vertical green seedcase removing device with a conical spiral laminated knife of the present invention.

FIG. 2 is a right view of the vertical green seedcase removing device with a conical spiral laminated knife of the present invention.

FIG. 3 is a left view of the vertical green seedcase removing device with a conical spiral laminated knife of the present invention.

FIG. 4 is an axonometric view of a partial structure of the vertical green seedcase removing device with a conical spiral laminated knife of the present invention.

FIG. 5 is a sectional view of the vertical green seedcase removing device with a conical spiral laminated knife of the present invention.

FIG. 6 is a sectional view of a conical funnel and a conical spiral laminated knife of the vertical green seedcase removing device with a conical spiral laminated knife of the present invention.

FIG. 7 is a three-dimensional schematic diagram of the conical funnel and the conical spiral laminated knife of the vertical green seedcase removing device with a conical spiral laminated knife of the present invention.

FIG. 8 is a sectional view of the conical spiral laminated knife of the vertical green seedcase removing device with a conical spiral laminated knife of the present invention.

FIG. 9 is an axonometric view of a knife blade internally attached to the vertical green seedcase removing device with a conical spiral laminated knife of the present invention.

FIG. 10 is an axonometric view of an insertion groove of a knife blade internally attached to the conical funnel of the vertical green seedcase removing device with a conical spiral laminated knife of the present invention.

FIG. 11 is an axonometric view of the conical funnel of the vertical green seedcase removing device with a conical spiral laminated knife of the present invention.

FIG. 12 is a sectional view of the conical funnel of the vertical green seedcase removing device with a conical spiral laminated knife of the present invention.

FIG. 13 is an axonometric view of a separation grid plate with a funnel of the vertical green seedcase removing device with a conical spiral laminated knife of the present invention.

FIG. 14 is a lateral view of the separation grid plate with the funnel of the vertical green seedcase removing device with a conical spiral laminated knife of the present invention.

FIG. 15 is a schematic diagram of stress of walnuts in an upper portion of the conical funnel.

FIG. 16 is a schematic diagram of stress of walnuts in a lower portion of the conical funnel.

In the drawings, 01 connecting screw bolt, 02 belt pulley sleeve ring with a connecting hole, 03 transmission connecting shaft, 04 conical funnel, 05 knife blade, 06 conical spiral laminated knife, 07 steel wire brush, 08 first thrust bearing, 09 transmission rod, 10 bearing, 11 separation grid plate with a funnel, 12 motor, 13 bevel gear, 14 second thrust bearing, 15 belt, 16 support, 17 supporting plate, 18 shell, 19 transmission rod first support, 20 green seedcase discharging plate, 21 transmission rod second support, and 22 green seedcase outlet.

DETAILED DESCRIPTION

It should be pointed out that the following detailed descriptions are all illustrative and are intended to provide further descriptions of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those usually understood by a person of ordinary skill in the art to which the present invention belongs.

It should be noted that the terms used herein are merely used for describing specific implementations, and are not intended to limit exemplary implementations of the present invention. As used herein, the singular form is also intended to include the plural form unless the present invention clearly dictates otherwise. In addition, it should further be understood that, terms "comprise" and/or "include" used in this specification indicate that there are features, steps, operations, components, assemblies, and/or combinations thereof.

For convenience of description, the words "upper", "lower", "left" and "right", if exist in the present invention, only indicate upper, lower, left and right directions consistent with those of the accompanying drawings, are not intended to limit the structure, and are used only for ease of description of the present invention and brevity of description, rather than indicating or implying that the mentioned device or element needs to have a particular orientation or needs to be constructed and operated in a particular orientation. Therefore, such terms should not be construed as a limitation on the present invention.

For the part of term explanation, terms in the present invention such as "mount", "connect", "connection", and "fix" should be understood in a broad sense. For example, the connection may be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection by using an intermediate medium, an interior connection between two elements, or interaction between two elements. A person of ordinary skill in the art may understand specific meanings of the foregoing terms in the present invention according to a specific situation.

As described in the related art, the prior art has defects. In order to solve the technical problems in the prior art, the present invention provides a vertical green seedcase removing device with a conical spiral laminated knife. The green seedcase removing device with a conical spiral laminated knife uses the conical spiral laminated knife and the conical funnel to remove green seedcases of walnuts. The green seedcases are timely separated out in the seedcase removal process, so that the objectives of high seedcase removal efficiency and reduced pollution of the green seedcases on the walnuts are achieved, and convenience is provided for cleaning at a later stage.

Refer to FIG. 1 to FIG. 5 for an integral structure of the device. The vertical green seedcase removing device with a conical spiral laminated knife includes a conical funnel 04, a conical spiral laminated knife 06, a separation grid plate 11 with a funnel, a shell 18, a fixed supporting mechanism, and a power mechanism. The conical funnel 04 is mounted on the fixed supporting mechanism. The conical spiral laminated knife 06 is located in the conical funnel, and is driven to rotate through the power mechanism and a transmission mechanism. The separation grid plate 11 with the funnel is disposed under the conical funnel 04.

The above structure will be illustrated in detail hereafter.

As shown in FIG. 6 and FIG. 7, the conical funnel 04 includes an upper portion and a lower portion, and the upper portion and the lower portion have different conicities. A plurality of green seedcase outlets are formed in a side wall of the upper portion of the conical funnel 04, and a plurality of knife blades 05 are disposed on an inner wall of the upper portion of the conical funnel. Steel wire brushes 07 are mounted on an inner wall of the lower portion of the conical funnel 04.

Further, the upper portion and the lower portion of the conical funnel 04 can be welded together, and can be detachably connected together through a connecting member (screw bolt), depending on practical requirements.

Further, a height of the upper portion of the conical funnel 04 is 2/3 of an overall height of the conical funnel 04, and a height of the lower portion is 1/3 of the overall height of the conical funnel 04. The upper portion and the lower portion have different conicities. With sufficient consideration to the size and the processing efficiency of the device, the conicity of the upper portion can be designed to be 25, and the conicity of the lower portion can be designed to be 16. Of course, it is not difficult to understand that the conicities of the upper portion and the lower portion may also be deigned into other conicities.

Further, a specific size of the green seedcase outlet 22 can be set according to practical requirements. For example, the green seedcase outlet can be designed into a parallelogram with an edge length of 2 cm, and the main effect of the green seedcase outlet is to separate out the peeled walnut green seedcases. Additionally, it should be noted that the shape of the green seedcase outlet 22 is not limited to the parallelogram disclosed by the present invention, and may also be designed into other shapes such as a rectangle and a triangle, and the quantity and the arrangement mode of the green seedcase outlet 22 are not limited.

Further, a height of the knife blade 05 at the inner wall of the upper portion of the conical funnel 04 can be designed to be 1 cm. Additionally, the knife blade 05 has a certain inclination angle. The inclination angle can be designed to be 10°C, which is approximately identical to the movement tracks of walnuts. An inclination direction is opposite to a tangential direction of a spiral line strike of the conical spiral laminated knife 06. The strike of the internally attached knife blade 05 and the strike of the conical spiral laminated knife 06 are projected onto the same plane and are crossed, specifically as shown in FIG. 6, FIG. 7 and FIG. 12. Moreover, considering the abrasion and damage in the work process, the knife blade 05 on the inner wall of the conical funnel 04 can be mounted onto the inner wall through a clamp groove, thus facilitating the replacement at the later stage, and the reference can be made to FIG. 9 and FIG. 10 for detailed drawing of the knife blade 05 and details of an insertion groove in the inner wall of the conical funnel 04.

Further, the conicity of the upper portion of the conical funnel 04 is a little greater than the conicity of the conical spiral laminated knife 06, and the conicity of the conical spiral laminated knife 06 is 16, so that a space between the conical funnel and the conical spiral laminated knife can be gradually reduced, the extrusion to the walnuts in the downwards movement also accordingly increases, and the effects of extrusion, cutting, and peeling is achieved, as shown in FIG. 6. The conicity of the lower portion of the conical funnel 04 is the same as the conicity of the conical spiral laminated knife 06, and a space between the inner wall of the conical funnel 04 and the conical spiral laminated knife 06 is unchanged.

Further, the steel wire brush 07 is attached to the inner wall of the lower portion of the conical funnel 04, and a detachable connecting mode or a non-detachable connecting mode can be used between the steel wire brush 07 and the conical funnel 04. When the detachable connecting mode is used, the steel wire brush is riveted on the conical funnel by rivets. The steel wire brush 07 is not in an integral form, but in a funnel shape spliced by a plurality of blocks, and can be regularly replaced according to the abrasion. A length of the steel wire brush 07 is 1.5 cm, and the steel wire brush 07 use 304# curve wires, so that the elasticity of the steel wire brush can be ensured, the friction of the steel wire brush can be increased, and the seedcase removal effect is more obvious.

As shown in FIG. 8, the conicity of the conical spiral laminated knife 06 is the same as the conicity of the lower portion of the conical funnel 04. The conical spiral laminated knife 06 is formed by laminating a plurality of spiral knife blades with the conicities, i.e., the conical spiral laminated knife includes a plurality of conical spiral knife blades, and the plurality of spiral knife blades are sequentially connected onto an outer wall of a conical tube at intervals from top to bottom to form a laminated shape. A screw pitch of the conical spiral laminated knife 06 is 8 cm. Both the conical spiral laminated knife 06 and the conical funnel 04 are fixedbythefixed supporting mechanism. The green seedcase removing device with the conical spiral laminated knife 06 is entirely mounted on an integral outer frame.

As shown in FIG. 13, the separation grid plate 11 with the funnel is located under the conical funnel 04, and is configured to separate walnut green seedcases from walnuts. The separation grid plate 11 with the funnel is welded onto the shell 18, the separation grid plate is in a shape of being concave in the middle and convex on two sides, thus ensuring that the walnuts cannot fall off from the two sides of the grid plate, and the funnel on the grid plate is considered for the requirements in the subsequent cleaning process.

Further, the relevant power mechanism and the transmission mechanism include a motor 12 located at an outer side of the bottom of the outer frame, a bearing 10, a second thrust bearing 14, a first thrust bearing 08, a transmission rod first support 19, a transmission rod second support 21 are coaxially mounted and fix the supported transmission rod 09. The transmission rod first support 19 and the transmission rod second support 21 are welded and fixed onto the outer frame, and the bearing 10 is welded in a hole of the transmission rod second support 21. The fourth bearing 10 is mainly configured to maintain the position of the transmission rod 09, and is little in abrasion, having no need of frequent replacement, so that a welding mode is used. The second thrust bearing 14 is disposed in a groove of the transmission rod first support 19, and is configured to support the transmission rod 09, the bearing 10 is disposed in the transmission rod first support 19, the bearing 10 is located at an upper portion of the second thrust bearing, and the transmission position is firmly fixed through the bearings 10 in the transmission rod first support 19 and the transmission rod second support 21. Each of the lower portion of the transmission rod 09 and the motor 12 is sleeved with a bevel gear 13. The bevel gear on the transmission rod 09 is mounted on the transmission rod in a key joint form. The bevel gear on the motor 12 is also mounted on the motor in a key joint form. Through key joint, dismounting and replacement are convenient. The two bevel gears are engaged, and the motor drives the transmission rod to rotate. A belt groove is formed in the top of the transmission rod, a belt can be mounted, a belt pulley sleeve ring 02 with a connecting hole is connected by the belt 15, and the transmission rod 09 drives the belt pulley sleeve ring 02 with the connecting hole to rotate. The belt pulley sleeve ring 02 with the connecting hole is connected and fixed by two first connecting screw bolts, and the belt drives the conical spiral laminated knife to rotate for removing the walnut green seedcases. The belt pulley sleeve ring 02 with the connecting hole and the first thrust bearing 08 are coaxially placed, and are supported by the transmission connecting shaft support 16, and the supporting of the conical spiral laminated knife 06 is finally realized. The conical funnel 04 is welded onto a conical funnel support plate 17, and the conical funnel support plate 17 is welded onto the whole outer frame. The lower portion of the conical funnel 04 is the separation grid plate 11 with the funnel. The shell 18 is disposed outside the device. The shell 18 consists of four steel plates in different shapes, each steel plate is welded to the whole outer frame in a welded mode, a cut is formed in one of the steel plates, the separation grid plate with the funnel passes through the cut, and the shell 18 is configured to collect the green seedcases.

The present invention has the following working principle:

Walnuts are equivalently fed into the vertical green seedcase removing device with a conical spiral laminated knife of the present invention by a relevant feeding system. The present invention mainly uses the knife blade 05 internally attached to the conical funnel 04 and the conical spiral laminated knife 06 for green seedcase extrusion, cutting and peeling. The specific principle is as follows: the conicity of the upper portion of the conical funnel 04 is 250, and the conicity of the conical spiral laminated knife 06 is 16, so that a space between the conical funnel 04 and the conical spiral laminated knife 06 is gradually reduced from top to bottom at the upper portion of the conical funnel 04, as shown in FIG. 6. After the walnuts are added into the conical funnel 04, in the downward movement process, since the space between the conical funnel 04 and the conical spiral laminated knife 06 is gradually reduced from top to bottom, the extrusion to the walnuts from the conical spiral laminated knife 06 and the conical funnel 04 is gradually increased. At this moment, the knife blade 05 internally attached to the conical funnel 04 starts to play a role. When the extrusion to the walnuts from the conical spiral laminated knife 06 and the conical funnel 04 is gradually increased, the knife blade 05 internally attached to the conical funnel 04 and the conical spiral laminated knife 06 can cut the walnut green seedcases. The design of the conical spiral laminated knife 06 use the principle of a screw conveyor. That is, when the conical spiral laminated knife rotates, the walnuts can be downwards conveyed while being cut, and downward thrust is generated on the walnuts. Finally, the walnuts receive a plurality of pairs of radial cutting force generated by the internally attached knife blade 05 and the conical spiral laminated knife 06 on the walnuts. When the walnuts are downwards pushed and conveyed by the conical spiral laminated knife 06, the knife blades inserted into the walnut green seedcases generate a plurality of pairs of tangential force on the walnut green seedcases to peel off the walnut green seedcases, such a seedcase removal mode well simulates a manual seedcase removal stress mode, and the peeled walnut green seedcases are separated out from the conical funnel 04 through the parallelogram-shaped hollow portion in the upper portion of the conical funnel 04. The internally attached knife blade has an inclination angle of 10, and the strike of the knife blade is approximately identical to the movement tracks of the walnuts, such that the cutting effect of the knife blade on the walnut green seedcases can be improved, as shown in FIG. 12. In order to overcome the defect that under the gravity factor generated due to the vertical type, the walnuts directly fall to the bottom of a processing device since there is no vertical space flow process in the processing process, and the space between the conical spiral laminated knife 06 and the internally attached knife blade 05 will be smaller than the size of the walnuts which are not subjected to green seedcase removal, through the blocking effect of the knife blade 05 internally attached to the conical funnel 04 and the conical spiral laminated knife 06, the fact that the processing process of cutting and peeling cannot be carried out since the walnuts directly fall to the bottom of the funnel is avoided. The heights (widths) of each layer of knife blades of the conical spiral laminated knife 06 are different with the fluctuation, thus achieving the effect of the screw conveyor overall. The processing of the present invention on the walnuts is continuous, and the processed materials subjected to seedcase removal can be continuously output while the materials are continuously added, so that the accumulation of the materials is prevented, and the continuity of the processing and seedcase removal process is ensured. By using the downward pushing action of the spiral knife blade on the walnuts, it is ensured that the walnuts can be smoothly output from the conical funnel 04. Considering the high efficiency of processing, the spiral knife blade is formed by laminating a plurality of knife blades, which ensures the contact probability of the knife blades and the walnuts, and improves the cutting effect. Based on the above, the conical spiral laminated knife 06 achieves the effects of cutting, peeling, blockage and falling prevention, pushing conveyance and the like in the processing process.

When the walnuts continuously and downwards move to the lower portion of the conical funnel 04 under the pushing action of the conical spiral laminated knife 06, the conicity of the lower portion of the conical funnel 04 is 160 and is the same as the conicity of the conical spiral laminated knife 06. When the walnuts are cut and peeled to remove most green seedcases and reach the lower portion of the conical funnel, the space between the conical funnel 04 and the conical spiral laminated knife 06 has been relatively smaller, but not enough to break the walnuts through extrusion. The 304# curve wire steel wire brush 07 with a length of 1.5 cm is disposed on the inner wall of the lower portion of the conical funnel 04. Good elasticity and friction performance of the steel wire brush 07 are used. Therefore, when the walnuts reach the lower portion of the conical funnel 04, the steel wire brush 07 can adapt to the walnuts in different sizes through the elasticity, and achieves the blocking effect, preventing the walnuts from falling out immediately. At the same time, through the friction of the steel wire brush 07 on the walnut surfaces, the effect of removing the green seedcases through friction is further achieved. In conjunction with the downward walnut pushing and conveyance by the conical spiral laminated knife 06, green seedcase residues which are not removed by the knife blade are removed through friction by the steel wire brush 07. Finally, the walnuts subjected to green seedcase removal fall onto the separation grid plate 11 with the funnel from the bottom of the conical funnel 04, the walnuts roll and fall into a cleaning system in a next step along with the grid plate, a tail end of the grid plate is provided with the funnel, which aims to enable the walnuts to smoothly roll into the cleaning system and prevent the walnuts from falling out. At the same time, the grid plate separates out the green seedcase fragments of the walnuts falling through the friction by the steel wire brush in the previous step. Finally, all separated green seedcases roll out from a green seedcase discharging plate and are collected.

The theoretical calculation and principle analysis are as follows:

(1) The rotating speed of a conical spiral rod will directly influence the production efficiency of a green seedcase removing machine, the higher the rotating speed is, the greater the processing amount is, but the greater the damage to walnuts is, and the expected production efficiency cannot be achieved when the rotating speed is too low. Therefore, the rotating speed of an inner roller should select the proper rotating speed by comprehensively considering the processing efficiency and the breakage rate, so that the breakage rate can be reduced while the processing efficiency is ensured, the peeling effect and the walnut quality are greatly improved, and the win-win situation of yield and benefit is achieved.

2 Tr((D + 2)2 - d Q=x6Osnpp

) 4

Q represents the production capacity of a screw conveyor, and the unit is t/h;

D represents a blade diameter of the screw conveyor, and the unit is m;

r is a minimum gap between an outer diameter of a spiral blade and an inner wall of a spiral groove, and the unit is m;

d represents a diameter of a spiral shaft, and the unit is m;

s represents a screw pitch, and the unit is m;

n represents a spiral rotating speed, and the unit is r/min;

cp represents a filling coefficient of a material;

# represents a spiral inclination coefficient; and

p represents a density of the material.

4Q n 60Soppfl((D + 2T)2 - d 2 )

According to the characteristics of the material and the inclination angle, the value of cp is 0.33, and the value of # is 1. In order to ensure the reduction of the breakage rate of the walnuts in the processing process, the production capacity is set to be 3t/h - 5 t/h to obtain the rotating speed of the conical laminated knife blade of 7 - 12 r/min.

Table 1 Relation table of material characteristics and material filling coefficient Material Easy flow and little Little abrasion and Great abrasion and characteristics abrasion blocky aggressiveness p 0.45 0.33 0.15

Table 2 Relation table of inclination angle and spiral inclination coefficient Inclination 00 2 50 100 <15° 20° angle f 1.0 0.90 0.80 0.70 0.65

(2) In this system device, during seedcase removal on the walnuts, the conical spiral laminated knife and the internally attached knife blades generate a pair of radial cutting force and tangential peeling force on the walnuts, and the specific stress is as shown in FIG. 14. When the walnuts are collected in a green seedcase removing system with the conical spiral laminated knife, downward thrusts Fs and F6 are received, and the walnuts are promoted to downwards move. The green seedcases are cut by the radial force F1 and F4 of the knife blades on the walnuts, and F1 , F2 , F3 , F4 , Fs and F6 are balanced force, so that the internally attached knife blades and the laminated knife blade cut into the green seedcases will generate tangential force of F2 , F3 and F6 on the green seedcases of the walnuts to peel away the green seedcases, and the green seedcases fall off from the walnuts to achieve the objective of removing the green seedcases.

(3) Referring to FIG. 15, the schematic stress diagram of the walnuts at the lower portion of the conical funnel is as shown in FIG. 15. The walnuts receive the self-gravity G, the downward thrust Fpush of the conical spiral knife blade on the walnuts, the elasticity Felasticity of the steel wire brush on the walnuts and the frictionfriction of the steel wire brush on the walnuts. Under the joint action of the force, the walnuts will receive the friction of frictiononthe surfaces of the walnuts in the downward movement process, and the walnuts are driven to roll. In this process, the walnuts can comprehensively receive the friction of frictionto realize seedcase removal.

(4) The motor with different power and the transmission mechanism are selected according to the rotating speed of the conical spiral laminated knife.

Referring to following formulas:

n P =T x 9500

5~ 1j Z2 51 n2 Z1

T2 Ti x i x r;

d T= F-tan(c+ p)- 2

P is a rated power (KW); n is a rotating speed (r/min); T is a rated torque N m; Z is a tooth number; i is a transmission ratio;r is a transmission efficiency (a value is set to be 1); c is a lead angle; p is an equivalent friction angle; and d is a pitch diameter of thread.

A transmission ratio of the motor to the transmission rod is 1: 1. The transmission ratio of the transmission rod to the conical spiral knife blade is 10: 1. The processing efficiency can be determined according to different processing requirements, and thus the rotating speed and power of the motor are determined.

The foregoing descriptions are merely exemplary embodiments of the present invention, but not intended to limit the present invention. Those skilled in the art may make various alterations and variations to the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

CLAIMS What is claimed is:

1. A vertical green seedcase removing device with a conical spiral laminated knife, comprising a conical funnel, the conical spiral laminated knife, a separation grid plate with a funnel, a fixed supporting mechanism, and a power mechanism;

the conical funnel and the conical spiral laminated knife are mounted on the fixed supporting mechanism; the conical funnel comprises an upper portion and a lower portion, and the upper portion and the lower portion have different conicities; a plurality of green seedcase outlets are formed in a side wall of the upper portion of the conical funnel, and a plurality of cutting knife blades are disposed on an inner wall of the upper portion of the conical funnel; steel wire brushes are mounted on an inner wall of the lower portion of the conical funnel; the conical spiral laminated knife is located in the conical funnel, and is driven by the power mechanism to rotate in the conical funnel; and the separation grid plate with the funnel is disposed under the conical funnel.

2. The vertical green seedcase removing device with a conical spiral laminated knife according to claim 1, wherein the conicity of the conical spiral laminated knife is the same as the conicity of the lower portion of the conical funnel, and the conicity of the conical spiral laminated knife is a little smaller than the conicity of the upper portion of the conical funnel.

3. The vertical green seedcase removing device with a conical spiral laminated knife according to claim 1, wherein the conical spiral laminated knife comprises a conical tube, and a plurality of knife blades integrally in spiral distribution are disposed on an outer surface of the conical tube in an axial direction of the conical tube.

4. The vertical green seedcase removing device with a conical spiral laminated knife according to claim 3, wherein the cutting knife blades are inclined for a set angle relative to an axial direction of the conical funnel.

5. The vertical green seedcase removing device with a conical spiral laminated knife according to claim 4, wherein an inclination direction of the cutting knife blades is opposite to a tangential direction of a spiral line strike of the spiral knife blades.

6. The vertical green seedcase removing device with a conical spiral laminated knife according to claim 1, wherein the separation grid plate is in a shape of being concave in the middle and convex in two sides; and one end of the separation grid plate is provided with a funnel.

7. The vertical green seedcase removing device with a conical spiral laminated knife according to claim 1, wherein a shell is disposed at an outer circle of the conical funnel, and the separation grid plate with the funnel penetrates through the shell to extend to a position under the conical funnel.

8. The vertical green seedcase removing device with a conical spiral laminated knife according to claim 1, wherein a transmission connecting shaft is disposed in the center of the conical spiral laminated knife; the conical spiral laminated knife is fixedly connected to the transmission connecting shaft; and the top of the transmission connecting shaft is connected to the power mechanism through a transmission mechanism.

9. The vertical green seedcase removing device with a conical spiral laminated knife according to claim 1, wherein a plurality of steel wire brushes are comprised, and are uniformly distributed on the inner wall of the lower portion of the conical funnel.

10. The vertical green seedcase removing device with a conical spiral laminated knife according to claim 1, wherein a height of the upper portion of the conical funnel is 2/3 of an overall height of the conical funnel, and a height of the lower portion is 1/3 of the overall height of the conical funnel.