CN202759808U

CN202759808U - Corn harvester

Info

Publication number: CN202759808U
Application number: CN 201220432992
Authority: CN
Inventors: 盛庆军
Original assignee: Henan Yushou Agricultural Machinery Manufacturing Co Ltd
Current assignee: HENAN KAINONG MACHINERY CO., LTD.
Priority date: 2012-08-29
Filing date: 2012-08-29
Publication date: 2013-03-06
Anticipated expiration: 2022-08-29

Abstract

The utility model provides a corn harvester, and aims at solving the problems that in the prior art, picking efficiency is low, and corn stalk crushing effect is poor. The corn harvester comprises a picking device and a corn stalk crushing device, wherein the picking device comprises two gearboxes and two short augers, the two gearboxes and the two short augers are arranged in a one-to-one correspondence mode, spiral bevel gears which are arranged in a pair and meshed with each other are arranged in each gearbox, and one end of each short auger stretches into the corresponding gearbox and is matched with a first spiral bevel gear. The corn harvester further comprises a power input shaft, and two ends of the power input shaft stretch into the two gearboxes and are matched with second spiral bevel gears. By means of the corn harvester, the rate of unbroken corn cobs which are picked and the corn yield are increased, and the corn stalks can be crushed thoroughly.

Description

A kind of maize harvesting machine

Technical field

The utility model relates to the harvest machinery technical field, refers to especially a kind of maize harvesting machine.

Background technology

Existing maize harvesting machine, be provided with ear-picking unit and straw millstone, gearbox in the ear-picking unit plays the outputting power that transmits engine, drive the effect that snapping bar rotates, adopt gear train in the gearbox in the past, gear is per two and cooperatively interacts and then drive snapping bar running during work, and noise is large, and make the discontinuity of snapping bar, affect the normal harvest operation.And some maize harvesting machine, it is tripartite that the break bar in the straw millstone adopts, and intensity is low, pulverizing is incomplete, also can affect normal harvest operation.

The utility model content

The utility model proposes a kind of maize harvesting machine, solved the inefficient problem of harvesting in the prior art.

The technical solution of the utility model is achieved in that and comprises ear-picking unit, straw millstone, described ear-picking unit comprise two gearboxes and with described gearbox two short screw feeders one to one, be respectively equipped with a pair of intermeshing spiral bevel gear in described two gearboxes, one end of described short screw feeder stretches in the described gearbox, and match with the first spiral bevel gear, also comprise power input shaft, the two ends of described power input shaft are stretched into respectively in two gearboxes, and match with the second spiral bevel gear.

As one preferred embodiment, described straw millstone comprises six side's break bars, and described six side's break bars comprise hexagonal base and three blades, and described three blades are uniform being installed on the described hexagonal base counterclockwise.

As one preferred embodiment, described blade is bolted on the described hexagonal base.

As one preferred embodiment, described short screw feeder drives long screw feeder rotation by spur gear, and central point line and the angle between the horizontal line of described short screw feeder and described long screw feeder are 29 °.

The utility model is compared the beneficial effect that produces with background technology: adopt spiral bevel gear in the gearbox, bearing capacity is strong, and wildhaber-novikov gear becomes the line contact at the flank profil normal plane, improves 1-1.5 doubly than the involute gear bearing capacity.Relative sliding velocity along tooth depth direction each point between the flank of tooth equates, so tooth surface abrasion is even, and the easy running-in of the flank of tooth has good running-in characteristic.Adopt six side's break bars, break bar intensity is high, and installation cost is low, and guarantees that blade cuts at same plane, and crushed stalk is more thorough.Two screw feeder relative angles in the gearbox change to 29 ° by before 23 °, and this angle is easier blanking in use, has avoided corncob to fall on the screw feeder owing to angle is little when blanking, has caused infringement.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is the structural representation of gearbox in the utility model maize harvesting machine;

Fig. 2 is the structural representation of spiral bevel gear in the utility model maize harvesting machine;

Fig. 3 is the structural representation of six side's break bars in the utility model maize harvesting machine;

Fig. 4 is A-A cross-sectional schematic among Fig. 1.

Among the figure: the 1-gearbox; 2-the first spiral bevel gear; 3-the second spiral bevel gear; 4-bores tooth; 5-spiral bevel gear base; The 6-spur gear; The 7-power input shaft; The short screw feeder of 8-; The long screw feeder of 9-; The 10-blade; The 11-hexagonal base; The 12-cutter shaft bearing block.

Embodiment

Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.

Fig. 1 is the structural representation of gearbox in the utility model maize harvesting machine.

As shown in Figure 1, the utility model maize harvesting machine is provided with ear-picking unit, ear-picking unit comprise two gearboxes 1 and with described gearbox 1 two short screw feeders 8 one to one, be respectively equipped with the first spiral bevel gear 2 and the second spiral bevel gear 3 in described two gearboxes 1, the first spiral bevel gear 2 and the second spiral bevel gear 3 are intermeshing, one end of described short screw feeder 8 stretches in the described gearbox 1, and match with the first spiral bevel gear 2, also comprise power input shaft 7, described power input shaft 7 two ends are stretched into respectively in two gearboxes 1, and match with the second spiral bevel gear 3.As shown in Figure 2, so-called spiral bevel gear is exactly that its cone tooth 4 is arcuation, and cone tooth 4 is fixed on the spiral bevel gear base 5, and the gear of this structure is when work, and its curved tooth becomes the line contact at the flank profil normal plane, improves 1-1.5 doubly than the involute gear bearing capacity.Relative sliding velocity along tooth depth direction each point between the flank of tooth equates, so tooth surface abrasion is even, and the easy running-in of the flank of tooth has good running-in characteristic.

The maize harvesting machine dynamical system drives power input shaft 7 by spur gear 6 and rotates, power input shaft 7 matches with the second spiral bevel gear 3 in the gearbox 1, and drive the second spiral bevel gear 3 and rotate, the first spiral bevel gear 2 that is meshed with the second spiral bevel gear 3 drives short screw feeder 8, short screw feeder 8 drives long screw feeder 9 by spur gear 6 and rotates, be respectively equipped with the section of haling, harvesting section and helical feed section on short screw feeder 8 and the long screw feeder 9, the harvesting section arranges spiral bar outward, and an end of long screw feeder 9 arranges straw shift wheel and driven by worm reducer.

As shown in Figure 3, maize harvesting machine is provided with straw millstone, straw millstone comprises six side's break bars, six side's break bars comprise hexagonal base 11, three blades 10, described three blades, 10 counterclockwise uniform being installed on the described hexagonal base 11, blade 10 is bolted on the hexagonal base 11, and hexagonal base 11 is fixed on the cutter shaft bearing block 12, and cutter shaft bearing block 12 matches with rotating shaft by bearing.

As shown in Figure 4, the angle between short screw feeder 8 and long screw feeder 9 central point lines and the horizontal line is 29 °, and the change of the relative angle of two screw feeders is so that the drop of two screw feeders increases to 3.8cm.

The maize harvesting machine course of work: during operation, reaping machine is along the maize ridge-till direction, milpa is under the effect of straw shift wheel, enter in the screw feeder of opposite direction rotating, the helical feed section is delivered to the harvesting section with the fruit ear handle, and under the effect of spiral bar and the section of haling, corncob falls in the fruit-ear box of below, simultaneously the cutter of harvesting section below is sent into the reducing mechanism after with straw cutting from root and is shredded, and the stalk after the chopping is trickled down naturally.

The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. a maize harvesting machine is characterized in that, comprising:

Ear-picking unit, straw millstone;

Described ear-picking unit comprise two gearboxes and with described gearbox two short screw feeders one to one, be respectively equipped with a pair of intermeshing spiral bevel gear in described two gearboxes, one end of described short screw feeder stretches in the described gearbox, and matches with the first spiral bevel gear;

Also comprise power input shaft, the two ends of described power input shaft are stretched into respectively in two gearboxes, and match with the second spiral bevel gear.

2. maize harvesting machine as claimed in claim 1 is characterized in that:

Described straw millstone comprises six side's break bars;

Described six side's break bars comprise hexagonal base and three blades, and described three blades are uniform being installed on the described hexagonal base counterclockwise.

3. maize harvesting machine as claimed in claim 2 is characterized in that:

Described blade is bolted on the described hexagonal base.

4. such as each described maize harvesting machine of claims 1 to 3, it is characterized in that:

Described short screw feeder drives long screw feeder by spur gear and rotates;

Central point line and the angle between the horizontal line of described short screw feeder and described long screw feeder are 29 °.