CN108093882A - Maize sheller - Google Patents

Abstract

The invention discloses a corn thresher, which comprises a bracket, a thresher main body arranged on the bracket, and a corn feeding rod for sending corn into the thresher main body; The casing below the feed inlet, the threshing cutter assembly arranged in the casing, and the separation device arranged under the casing; the threshing cutter assembly includes a shaft mounted on the An annular knife rest in the casing, a plurality of threshing knives that are evenly distributed along the circumferential direction of the knife rest and elastically connected to the knife rest in the axial direction, and a driving device for driving the rotation of the knife rest; the separation device It includes a separation plate arranged obliquely; the separation plate is distributed with screening openings that allow corn kernels to pass through but not corn cobs; the thresher has a compact structure and low cost, and can be used for threshing small batches of corn.

Description

corn thresher

technical field

The invention relates to the field of corn threshing equipment, in particular to a corn thresher.

Background technique

Corn is rich in nutrients: per kilogram, it contains 74.8 grams of carbohydrates, 29 grams of protein, 16.6 grams of fat, and 6.9 grams of dietary fiber. It can be said to be the well-deserved "No. 1 golden staple food". According to nutrition experts, the "universal nutrition" contained in corn is suitable for people of all ages. Its rich glutamic acid can promote brain development and is the best "education food" for children; , is a "decompression food" suitable for white-collar workers; rich in linoleic acid and calcium, which can help regulate fat and lower blood pressure, and the high fiber content makes corn a good "intestinal scraping food" that can prevent middle-aged fat In addition, the glutathione rich in corn is the most effective anti-cancer ingredient, and the rich vitamin E it contains can also help anti-aging and soften blood vessels. Corn is an important food crop and an important source of feed. It is rich in nutrition and is also the food crop with the highest total output in the world. However, due to the large volume of corn, and only corn kernels can be eaten, in order to improve the storage efficiency of corn, it is necessary to store the corn after threshing. In the past, corn threshing was done manually, which was not only extremely inefficient, but also labor-intensive. Therefore, in order to solve the problem of corn threshing efficiency, corn threshers appeared on the market. The corn thresher can quickly separate corn kernels and corn cobs, and is suitable for food processing plants to cooperate with quick freezing and corn canning manufacturers. However, the traditional corn threshers are mainly large-scale threshing equipment. Large-scale equipment is often expensive, and the field of small-batch corn thresher equipment is not yet mature. need.

Therefore, need a kind of corn thresher with compact structure, lower cost, can be used for small batch corn thresher.

Contents of the invention

In view of this, the present invention provides a corn thresher with compact structure and low cost, which can be used for small batch corn thresher.

The corn thresher of the present invention includes a support, a thresher main body arranged on the support, and is used to send corn into the corn feeding rod of the thresher main body; the thresher main body includes a feed port, located on the feed The casing below the mouth, the threshing cutter assembly arranged in the casing, and the separation device arranged under the casing; the threshing cutter assembly includes An annular knife rest, a plurality of threshing knives that are evenly distributed along the circumferential direction of the knife rest and elastically connected to the knife rest in the axial direction, and a driving device for driving the rotation of the knife rest; the separation device includes an inclined setting A separation plate; the separation plate is distributed with screening openings that allow corn kernels to pass through and do not allow corn cobs to pass through;

Further, the knife holder includes an inner ring and an outer ring coaxially fixed to each other; the threshing knife includes a knife bar and a blade fixed at the end of the knife bar; the blade is located in the inner circle space of the inner ring, and the knife bar passing through the inner ring and the outer ring in the radial direction; the tool rod is provided with an external thread, and the first nut and the second nut are connected through the external thread, and the first nut is located outside the outer ring, and the second nut is located on the outer ring Inside; there is a spring on the top between the second nut and the inner circle of the outer ring;

Further, the cutter rod passes through the inner ring through the installation hole provided on the inner ring; the outer circle of the cutter rod is provided with a strip-shaped anti-rotation groove along the axial direction, and the installation hole is provided with a The projection that fits the anti-rotation groove;

Further, the casing includes an upper casing and a lower casing that are detachably fixedly connected; the tool holder is rotatably supported on the upper casing through bearings; the inner ring of the bearing is interference fit in the inner ring of the tool holder Ring, the outer ring of the bearing is interference fit on the upper housing;

Further, the tool holder is fixedly mounted with a driven bull gear through a gear fixing frame; the driving device is installed in the lower housing, and the output shaft of the driving device is provided with a driving pinion meshing with the driven bull gear;

Further, the angle range between the normal line of the blade and the horizontal plane is 30°-60°;

Further, the separation device also includes a separation box with a corn kernel outlet and a corn cob outlet, a first guide groove arranged at the corn kernel outlet and a second guide groove arranged at the corn cob outlet; the separation plate is arranged obliquely on the separation Between the corn grain outlet and the corncob outlet in the box;

Furthermore, the corn feeding stick includes a long rod, handles and tips respectively fixed on both ends of the long rod; a limiting baffle is provided at the connection between the long rod and the tip.

Beneficial effects of the present invention: the corn thresher of the present invention, according to the circumference size of the corn that needs to be threshed, adjusts the length of the threshing knife radially extending into the annular knife holder, so as to adapt to the corn thresher of this batch, start the corn thresher, The driving device drives the ring knife holder to rotate, and inserts the corn feeding rod into the corn cob (unthreshed corn), inserts the corn into the center of the knife holder through the feeding port, and the knife holder drives each threshing knife to revolve around the corn feeding rod, and the threshing knife The blade acts on the corn kernels of the corn cob for threshing until the threshing is completed, and the corn feeding cob is pulled out. When the corn feeding cob is pulled out, the threshed corn cob moves upward due to the blocking effect of the threshing knife so that it is separated from the corn The feeding rod is separated, and then the above steps are repeated again to complete the small batch threshing of corn. During the threshing process, the manual only needs to insert the corn into the corn feeding rod and send it to the thresher without manual labor. Pulling corn kernels, this thresher has a simple and compact structure and low cost, and is suitable for small batches of corn threshing operations.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is an exploded view of the thresher main body of the present invention;

Fig. 3 is a structural schematic diagram of the lower casing of the present invention;

Fig. 4 is the structural representation of threshing cutter assembly of the present invention;

Figure 5 is an exploded view of the threshing cutter assembly of the present invention;

Fig. 6 is the schematic diagram of the threshing knife of the present invention;

Fig. 7 is a schematic structural view of the corn feeding cob of the present invention.

Detailed ways

Fig. 1 is a schematic view of the overall structure of the present invention; Fig. 2 is an exploded view of a thresher main body 2 of the present invention, and Fig. 4 is a schematic structural view of a threshing cutter 6 assembly of the present invention, as shown in the figure: the corn thresher of the present embodiment , including a bracket 3, a thresher main body 2 arranged on the bracket 3, and a corn feeding rod 4 for sending corn into the thresher main body 2; wherein, the bracket 3 is a quadrangular pyramid structure formed by connecting rods, and the top is The ring is used to support the threshing machine main body 2; the threshing machine main body 2 includes a feed inlet 1, a casing positioned below the feed inlet 1, a threshing cutter 6 assembly arranged in the casing, and a set Separation device 8 below the casing; the feed inlet 1 is funnel-shaped, used to guide corn into the casing, and the threshing tool 6 assembly is installed on the casing in a manner that can rotate around the axis. The annular knife holder in the shell, a plurality of threshing knives that are evenly distributed along the circumferential direction of the knife holder and elastically connected to the knife holder in the axial direction, and a driving device for driving the rotation of the knife holder, before threshing, according to the needs The size of the circumference of the threshed corn, adjust the length of the threshing knife extending radially into the ring knife holder to suit the batch of corn threshing, start the corn thresher, the driving device drives the ring knife holder to rotate, and insert the corn feeding rod 4 into the corn In the core (unthreshed corn), insert the corn into the center of the knife holder through the feed port 1, the threshing knives are pressed against the surface of the corn cob by elastic force, the knife holder drives each threshing knife to revolve around the corn feeding rod, and the threshing knife The blade 21 acts on the corn grains of the corn cob to perform threshing until the threshing is completed, and the corn feeding cob 4 is pulled out. The corn cob is separated from the corn feeding rod 4, and then the small batch threshing of corn can be completed by repeating the above steps. The threshed corn kernels and corn cobs all fall to the separation device 8; Separation plate; the separation plate is distributed with screening openings that allow corn grains to pass through and do not allow corncobs to pass through; the separation plate is welded by steel plates, wherein the separation plate is covered with horizontal slits as screening openings, and its size allows corn grains to pass through. Pass through without allowing the corn cob to pass through, the corn kernels directly reach the corn kernel outlet after passing through the separation plate, and the corn cob can only flow out from the corn cob outlet.

In this embodiment, the knife holder includes an inner ring 14 and an outer ring 15 coaxially fixed to each other; as shown in Figure 6, the threshing knife includes a knife bar and a blade 21 fixed at the end of the knife bar; the blade 21 is located in the inner circle space of the inner ring 14, and the knife rod passes through the inner ring 14 and the outer ring 15 in the radial direction; the knife rod is provided with an external thread, and is connected with the first nut 17 and the second Nut 19, and the first nut 17 is positioned at the outside of outer ring 15, and the second nut 19 is positioned at the inner side of outer ring 15; Spring 18 is arranged on the top between described second nut 19 and the inner circle of outer ring 15; Spring 18 is used for providing threshing Knife acts on the elastic force on the surface of the corn cob. When the size of the elastic force needs to be increased, the second nut 19 can be screwed to further compress the spring 18; The inward maximum extension length is limited, and the maximum extension length of the threshing knife can be adjusted by screwing the first nut 17, so as to adapt to corn cobs of different sizes.

In this embodiment, the cutter rod passes through the inner ring 14 through the installation hole provided on the inner ring 14; the outer circle of the cutter rod is provided with a bar-shaped anti-rotation groove 20 along the axial direction, and the installation The hole is provided with a bump that cooperates with the anti-rotation groove 20. When the knife rod stretches, the bump slides reciprocally relative to the anti-rotation groove 20. While rotating around the axis, the posture of the blade 21 is maintained.

In this embodiment, the casing includes an upper casing 5 and a lower casing 7 that are detachably fixedly connected; the upper casing 5 is fixed on the lower casing 7 by screws, and the separating device 8 is also fixed on the lower casing 7, The lower housing 7 is welded on the bracket 3; the tool holder is rotatably supported on the upper housing 5 through a bearing 13; the inner ring of the bearing 13 is interference fit on the journal of the inner ring 14 of the tool holder, and the bearing 13 The outer ring of the outer ring is interference fit on the upper housing 5 to ensure that the tool holder can rotate freely around the axis.

In this embodiment, the tool holder is fixedly mounted with a driven gear 16 through the gear holder 12, and the inner ring 14 and the outer ring 15 of the tool holder are fixedly connected through a connecting plate, and the gear holder 12 is a T-shaped structure. Its web is provided with a slot, and the connecting plate can be inserted into the slot, and then the gear fixing frame 12 and the tool holder are fixed by bolts passing through the connecting plate and the web, and the gear fixing frame 12 of the T-shaped mechanism is fixed on the flange. A connection hole is provided, and a bolt is used to pass through the connection hole and the end face of the driven gear 16 to realize the relative fixing of the two; as shown in FIG. 3 , the driving device is a motor 10 and is installed in the lower housing 7 , the output shaft of the motor 10 is provided with a driving pinion 9 meshing with the driven bull gear 16 .

In this embodiment, the included angle range between the normal line of the blade 21 and the horizontal plane is 30°-60°, so as to ensure the high efficiency of threshing when the corn moves downward.

In the present embodiment, the separation device 8 also includes a separation box with a corn kernel outlet and a corn cob outlet, a first guide groove arranged at the corn kernel outlet and a second guide groove arranged at the corn cob outlet; the separation plate It is installed obliquely between the corn kernel outlet and the corn cob outlet in the separation box; the separated corn cobs and corn kernels fall on the separation plate, and the corn kernels are exported from the corn kernel outlet through the screening port, and the corn cobs rely on gravity to the corn cob Exit scroll.

In this embodiment, the corn feeding rod 4 includes a long rod, handles and tips respectively fixed on both ends of the long rod; The baffle can prevent the tip from being inserted too deeply into the corn cob, and it is difficult to disengage from the tip, which acts as a limiter.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be carried out Modifications or equivalent replacements without departing from the spirit and scope of the technical solution of the present invention shall be covered by the claims of the present invention.

Claims (8)

1. a kind of maize sheller, it is characterised in that：Including stent, the thresing machine main body being arranged on the stent, for inciting somebody to action Corn is sent into the corn feeding stick of thresing machine main body；The thresing machine main body includes feed inlet, below the feed inlet Casing, the threshing toolbox being arranged in the casing and the separator being arranged at below the casing；

The threshing toolbox includes annular knife rest can be installed in a manner of axis rotation in the casing, along described Knife rest circumferencial direction is uniformly distributed and is resiliently attached to multiple threshing knives of knife rest vertically and for driving the knife rest The driving device of rotation；

The separator includes the separating plate being obliquely installed；The separating plate be distributed with allow niblet by and do not allow jade Meter Xin by screening mouth.

2. maize sheller according to claim 1, it is characterised in that：The knife rest includes mutual co-axially fixed inner ring And outer ring；The threshing knife includes knife bar and the blade for being fixed on knife bar end；The blade is located in inner ring in space of circles, institute It states knife bar and passes radially through inner ring and outer ring；The knife bar be equipped with external screw thread, and pass through the external screw thread be connected with the first nut and Second nut, and the first nut is located on the outside of outer ring, the second nut is located on the inside of outer ring；Second nut and outer ring inner circle it Between bullet top have spring.

3. maize sheller according to claim 2, it is characterised in that：The knife bar passes through the installation that is arranged on inner ring Hole passes through the inner ring；The knife bar outer circle is equipped with the anti-rotation groove of bar shaped vertically, be equipped in the mounting hole with it is described The convex block of anti-rotation groove cooperation.

4. maize sheller according to claim 3, it is characterised in that：The casing includes detachable be fixedly connected Upper shell and lower housing；The knife rest is by bearing rotating support in the upper shell；The inner ring of the bearing in interference fit with The inner ring of knife rest, the outer ring of bearing is in interference fit with upper shell.

5. maize sheller according to claim 4, it is characterised in that：The knife rest is fixedly mounted by gear fixed frame There is driven gear wheel；The driving device is installed in the lower housing, driving device output shaft be provided with it is described driven big The driver pinion of gear engagement.

6. maize sheller according to claim 5, it is characterised in that：Folder between the normal and horizontal plane of the blade Angular region is 30 ° -60 °.

7. maize sheller according to claim 6, it is characterised in that：The separator is further included to be gone out with niblet Mouthful and corncob outlet separator box, be arranged at the first guide groove of niblet outlet and be arranged at second leading for corncob outlet Slot；The separating plate is obliquely installed between the niblet outlet in separator box and corncob outlet.

8. maize sheller according to claim 7, it is characterised in that：The corn feeding stick includes stock, right respectively Handle and the tip at the stock both ends should be fixed on；The stock is equipped with postive stop baffle with tip junction.