CN206728598U - A kind of impurities removal mechanism of maize harvesting machine - Google Patents

Abstract

The utility model discloses a miscellaneous removal mechanism of a corn harvester, which comprises: an elevator; a fan, which is arranged below the elevator to provide uniform wind force upward along the elevator; a pair of stem pullers Roller, a pair of stem pulling rollers are set on the exit side of the elevator; the crushing knife device, the crushing knife device is set on the side of the stem pulling roller away from the elevator; the trash discharge port is welded, and the trash discharge port is welded on The crushing knife device is away from the side of the stem pulling roller, and is used to discharge the chopped straw and weeds; the crushing knife device includes: knife shaft welding, several moving knives, fixed knife and fixed knife fixing plate, knife shaft welding Rotating around its own axis, a number of moving knives are evenly arranged on the knife shaft welding, the fixed knife is fixed on the fixed plate of the fixed knife, there is a gap between the moving knife and the fixed knife, and the fixed knife is located between the moving knife and the pull between stem rolls. The trash removal mechanism has good crushing and trash removal performance, low cost, is not easy to be damaged and is convenient to replace.

Description

A kind of impurity discharge mechanism of corn harvester

technical field

The utility model relates to the mechanical design field of a miscellaneous removal device, in particular to a miscellaneous removal mechanism of a corn harvester.

Background technique

The corn harvester is an agricultural machine that mechanically completes multiple operations such as ear picking, stacking, and stalk returning to the field at one time when the corn is mature. The technological process of the corn harvester is to use the corn harvester to pick the ear under the corn growth state. Under the action of the ear picking roller and the ear picking board, the ear handle is pulled off; due to the height difference between the inner and outer picking rollers, the ear ear falls into the Ear box, open the box and stack after the ear is full; the high-speed rotating cutter cuts the straw from the root and enters the crushing mechanism to chop it into 3-5cm long pieces, and the straw falls to the ground naturally after cutting; then transport the ear to the field , peeled with a peeling machine, and threshed after drying.

Chinese invention patent CN201410091535.4, the subject name is a corn harvester impurity removal device, which discloses a corn harvester impurity removal device, including elevators, impurity removal rollers, pulverizers, Grass discharge port and miscellaneous removal fan, use the miscellaneous discharge roller to transport the straw and weeds passed by the elevator to the pulverizer for crushing and then discharge through the grass discharge port, wherein the crushing drum of the pulverizer is made into a Y-shaped throwing knife Type, straight throwing knife type, hammer claw type or nail tooth type, this type of pulverizer has high production cost and is easy to damage, and it is troublesome to replace the pulverizer.

Therefore, the applicant is committed to providing a novel corn harvester's trash removal mechanism.

Contents of the invention

The purpose of the utility model is to provide a trash removal mechanism for a corn harvester, which has good crushing and trash removal performance, low cost, is not easily damaged and is easy to replace.

In order to solve the above-mentioned technical problems, the utility model provides a miscellaneous removal mechanism of a corn harvester, including: an elevator; The uniform wind force upward of the device; a pair of stem pulling rollers, and a pair of stem pulling rollers are arranged on the outlet side of the elevator; a crushing knife device, and the crushing knife device is arranged on the stem pulling rollers away from the One side of the elevator; the miscellaneous discharge port is welded, and the miscellaneous discharge port is welded and arranged on the side of the crushing knife device away from the stem pulling roller, for discharging chopped straw and weeds; wherein The crushing knife device includes: knife shaft welding, several moving knives, fixed knife and fixed knife fixing plate, the knife shaft welding rotates around its own axis, and several moving knives are evenly arranged on the knife shaft welding Above, the fixed knife is fixed on the fixed plate of the fixed knife, there is a gap between the movable knife and the fixed knife, and the fixed knife is located between the movable knife and the stem pulling roller.

Preferably, the cross-sectional shape formed by the welding of the moving knife and the knife shaft is S-shaped; the welding of the knife shaft includes a knife shaft and a mounting plate, the knife shaft is connected with the mounting plate, and the mounting plate is A symmetrical structure, and the symmetrical axis of the mounting plate coincides with the central axis of the knife shaft, the moving knife is provided on both sides of the mounting plate, the moving knife is an L-shaped structure, and the L One folded edge of the type structure is connected to the installation board, and the other folded edge extends away from the installation board.

Preferably, the welded shape of the miscellaneous outlet is streamlined.

Preferably, the fixed knife is fixedly connected to the fixed knife fixing plate by bolts.

Preferably, the movable knife is fixedly connected to the knife shaft by welding.

Preferably, the miscellaneous discharge mechanism of the corn harvester further includes: a casing, the elevator, the stalk pulling roller and the crushing knife device are all arranged in the casing, and the miscellaneous discharge port is welded and arranged on the casing. One or both sides of the casing, and the fan is fixed to the outside of the casing through an arm.

Preferably, the miscellaneous outlet is welded and connected to the housing through bolts.

Preferably, the elevator is an elevator chain rake.

Preferably, the miscellaneous removal mechanism of the rice harvester further includes: an ear outlet, the ear outlet is arranged below the outlet of the elevator and in front of the air outlet of the fan.

Preferably, the fan is a cross-flow fan.

The miscellaneous mechanism of the rice harvester of the utility model can realize at least one of the following beneficial effects.

1. Since the crushing knife device used in the utility model is a combination of a fixed knife and a moving knife to crush straw and weeds, and the cross-sectional shape formed by the welding of the moving knife and the knife shaft is S-shaped, when the straw and weeds are chopped Afterwards, the groove formed by the welding of the passive knife and the knife shaft is thrown to the miscellaneous discharge port. This method can prevent the straw and weeds from being blocked at the pulverizer device, thereby achieving better pulverization performance, and because the pulverizer The device is a simple device, which is convenient to install and replace, and requires less material to make the crushing knife device, and the manufacturing cost is low.

2. The welding design of the miscellaneous discharge port is streamlined, which is convenient for the discharge of chopped straw and weeds, and will not be blocked at the miscellaneous discharge port.

3. Since the wind blown by the cross-flow fan can reach a long distance, the straw and weeds transported from the elevator can be blown into the stem roller more easily, and the wind blown out also promotes The crushed straw and weeds are welded and discharged from the miscellaneous discharge port.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail:

Fig. 1 is a structural representation of a specific embodiment of the miscellaneous mechanism of the corn harvester of the present utility model;

Fig. 2 is a partially enlarged view of the crushing knife device of Fig. 1;

Explanation of reference numbers:

1-lifting chain rake, 2-stem pulling roller, 3-casing, 4-knife shaft welding, 5-moving knife, 6-fixed knife fixed plate, 7-fixed knife, 8-cross-flow fan, 9- Support arm, 10-the miscellaneous mouth welding, 11-ear outlet, the running direction of A-elevating chain rake, the rotating direction of B-stem pulling roller, the common rotating direction of C-moving knife and knife shaft welding.

detailed description

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Embodiment one

As shown in Figure 1 and Figure 2, Embodiment 1 discloses a specific embodiment of the trash removal mechanism of a corn harvester, including a lifting chain rake 1, a pair of stem pulling rollers 2, Knife shaft welding 4, moving knife 5, fixed knife 6 and fixed knife fixing plate 7; the miscellaneous discharge port arranged on one side of the casing is welded 10; the cross-flow fan 8 arranged under the casing 3 through the support arm 9; The fruit ear outlet 11 that is arranged on the lower front of the lifting chain rake 1 and is positioned at the outlet front of the cross-flow fan 8 .

A pair of stemming rollers 2 are arranged on the front top of the outlet of the lifting chain rake 1, and the cross-flow fan 8 is arranged below the outlet of the lifting chain rake 1, and the cross-flow fan provides an upward wind along the direction of the lifting chain rake. . Knife shaft welding 4, moving knife 5, fixed knife 6 and fixed knife fixing plate 7 together form a crushing knife device and are arranged in front of a pair of stem pulling rollers 2 for crushing the straw transported by the stem pulling rollers 2 with weeds. And discharge through the streamlined miscellaneous outlet welding 10 on one side. The miscellaneous discharge port welding 10 is divided into a section of small arc type and a straight section of the miscellaneous discharge port. 10 is positioned at the place ahead of pulverizer device. The fruit ears transported up by the lifting chain rake 2 are discharged through the fruit ear outlet 11 due to self gravity and carry out other corresponding treatments.

As shown in FIG. 2 , the crushing knife device includes a knife shaft welding 4 , a moving knife 5 , a fixed knife 6 and a fixed knife fixing plate 7 . The moving knife 5 is an L-shaped sheet structure. The knife shaft welding 4 includes a knife shaft and mounting plates arranged at both ends of the knife shaft. The mounting plate is a symmetrical sheet structure, and the axis of symmetry of the mounting plate and the axis of the knife shaft Coincidentally, one folded edge of the movable knife 5 is fixed to the mounting plate by bolts and locked with nuts and lock nuts to ensure that the movable knife 5 is tightly assembled, and the other folded edge extends away from the mounting plate. The cross-sectional shape formed by the movable knife 5 and the knife shaft welding 4 is S-shaped.

The fixed knife fixed plate 7 is fixedly connected in the casing 3, and the fixed knife 6 is fixedly connected to the fixed knife fixed plate 7 by bolts and nuts, and there is a gap between the movable knife 5 and the fixed knife 6 for cutting straw and weeds , because the movable knife 5 and the knife shaft welding 4 jointly form an S-shaped section, so after the movable knife 5 and the fixed knife 6 cut and crush the straw and weeds, the crushed straw and weeds can be thrown to the miscellaneous discharge port, and then The crushed straw and weeds at the miscellaneous outlet are blown by the cross-flow fan 8 to be discharged through the miscellaneous outlet welding 10, which prevents the straw and weeds from staying at the crushing knife device and the miscellaneous outlet and eventually causing blockage. Greatly increased trash removal performance.

Compared with the existing crushing device, the crushing knife device in this embodiment is simple in structure, easy to install and disassemble, and has less manufacturing consumables, thereby saving manufacturing costs and achieving a better crushing effect. In addition, in this embodiment The advanced miscellaneous discharge mechanism can throw the crushed straw and weeds to the miscellaneous discharge port for discharge, thus effectively avoiding the blockage of the straw and weeds at the crushing knife device and the miscellaneous discharge port, and ensuring the smooth operation of the miscellaneous discharge.

Embodiment two

Embodiment 2 discloses another specific embodiment of the miscellaneous discharge mechanism of the corn harvester. The structure of embodiment 2 is basically the same as that of embodiment 1, except that the miscellaneous discharge port in embodiment 2 is welded and arranged on On both sides of the casing, the straw and weeds crushed by the crushing knife device can be welded and discharged through any trash discharge port on both sides. The trash discharge mechanism in this embodiment increases the trash discharge capacity and improves the trash discharge performance. .

Of course, in other specific embodiments, the welding of the miscellaneous discharge port in the utility model can also be other streamline shapes, such as the entire miscellaneous discharge port is welded into an arc shape, etc.; The chain rake can also be other devices used to lift fruit ears and straw; the fan is not limited to the cross-flow fan, as long as it can provide uniform and stable blowing, it will not be repeated here.

Exemplary, as shown in Figure 1, the specific application of the specific embodiment of the miscellaneous mechanism of the corn harvester of the present invention is as follows:

1. The lifting chain harrow 1 runs along the running direction A of the lifting chain harrow, and the ears, straw and weeds are lifted to the exit of the lifting chain harrow 1 through the lifting chain harrow 1;

2. The ear falls into other processing devices through the ear outlet 11 due to its own gravity, and the straw and weeds are blown to the stem pulling roller by the wind of the cross-flow fan 8;

3. The stem pulling roller 2 rotates according to the rotation direction B of the stem pulling roller, and sends the straw and weeds into the crushing knife device;

4. The moving knife 5 and the knife shaft welding 4 in the crushing knife device rotate along the common rotation direction C of the welding of the moving knife and the knife shaft, and the moving knife 5 and the fixed knife 7 cooperate to chop straw and weeds and crush them The stalks and weeds are thrown to the miscellaneous outlet for welding 10;

5. The cross-flow fan 8 blows the crushed straw and weeds to the outside of the corn harvester through the streamlined miscellaneous discharge port 10.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made. Retouching should also be regarded as the scope of protection of the present utility model.

Claims (10)

1. A kind of 1. impurities removal mechanism of maize harvesting machine, it is characterised in that：

   Elevator；

   Blower fan, the blower fan are arranged at the lower section of the elevator, for providing along the upward uniform wind-force of the elevator；

   A pair of stem pulling rollers, a pair of stem pulling rollers are arranged on the outlet side of the elevator；

   Knife system is crushed, the crushing knife system is arranged at the side of the stem pulling roller away from the elevator；

   Impurity discharging port soldering, the impurity discharging port soldering is arranged at the side of the crushing knife system away from the stem pulling roller, for arranging The stalk gone out after chopping and weeds；

   Wherein crushing knife system includes：Cutter shaft soldering, some moving knife, stationary knife and stationary knife fixed plate, the cutter shaft soldering is around it The axle rotation of itself, some moving knife are evenly arranged in the cutter shaft soldering, and the stationary knife is fixedly arranged on the stationary knife and fixed On plate, there is gap, the stationary knife is between the moving knife and the stem pulling roller between the moving knife and the stationary knife.
2. 2. the impurities removal mechanism of maize harvesting machine according to claim 1, it is characterised in that：

   The cross sectional shape that the moving knife is collectively forming with cutter shaft soldering is S types；

   The cutter shaft soldering includes a cutter shaft and installing plate, and the cutter shaft is connected with the installing plate, and the installing plate is a pair Claim structure, and the center overlapping of axles of the symmetry axis of the installing plate and the cutter shaft, the both sides of the installing plate are equipped with described Moving knife, the moving knife are a L-type structure, and a flanging of the L-type structure is connected with the installing plate, and another flanging is along remote The direction extension of the installing plate.
3. 3. the impurities removal mechanism of maize harvesting machine according to claim 1, it is characterised in that：

   The impurity discharging port soldering is shaped as streamline shape.
4. 4. the impurities removal mechanism of maize harvesting machine according to claim 1, it is characterised in that：

   The stationary knife is bolted to connection in the stationary knife fixed plate.
5. 5. the impurities removal mechanism of maize harvesting machine according to claim 1, it is characterised in that：

   The moving knife is bolted to connection in the cutter shaft soldering.
6. 6. the impurities removal mechanism of maize harvesting machine according to claim 1, it is characterised in that also include：

   Casing, the elevator, stem pulling roller be may be contained within the casing with crushing knife system, and the impurity discharging port soldering is arranged on The one side of the casing or bilateral, the blower fan are fixed on the outside of the casing by a support arm.
7. 7. the impurities removal mechanism of maize harvesting machine according to claim 6, it is characterised in that：

   The impurity discharging port soldering is connected by bolt with the casing.
8. 8. the impurities removal mechanism of maize harvesting machine according to claim 1, it is characterised in that：

   The elevator is elevator chain harrow.
9. 9. the impurities removal mechanism of maize harvesting machine according to claim 1, it is characterised in that also include：

   Fruit ear is exported, and the fruit ear outlet is arranged at below the outlet of the elevator and before the air outlet of the blower fan Side.
10. 10. the impurities removal mechanism of maize harvesting machine according to claim 1, it is characterised in that：

    The blower fan is cross flow fan.