CN103168572B

CN103168572B - Anti-grain on a kind of Double-drum threshing machine structure splashes down device

Info

Publication number: CN103168572B
Application number: CN201310135736.5A
Authority: CN
Inventors: 何培祥; 孔维蓉; 蒋猛; 袁瑛; 何家成; 徐丹; 李博
Original assignee: Southwest University
Current assignee: Southwest University
Priority date: 2013-04-18
Filing date: 2013-04-18
Publication date: 2015-10-28
Anticipated expiration: 2033-04-18
Also published as: CN103168572A

Abstract

The anti-grain that the invention discloses on a kind of Double-drum threshing machine structure splashes down device, key is: described device comprise be arranged at grain header twin-roll below, two pieces of sloping baffles in " eight " set up of character patt ern, one end that baffle plate is low is communicated with collection tanker, a brush roll is respectively equipped with below two pieces of baffle plates, brush roll is driven by driving mechanism and reversely rotates simultaneously, the brush silk of brush roll inserts rice and wheat straw gap and prevents grain from splashing to field, grain in gap can be scanned out during rotation and deliver on baffle plate, distance between brush roll and baffle plate is rotated through after allowing brush deformation of filament.Brush silk before distortion is intensive improves sealing together, catches the grain fallen down and makes it slide on baffle plate to enter collection tanker.The present invention effectively can reduce the percent of loss of tilting twin-roll combine harvester adopting harvest method of threshing prior.

Description

Anti-grain on a kind of Double-drum threshing machine structure splashes down device

Technical field

The present invention relates to a kind of tilting twin-roll combine harvester adopting harvest method of threshing prior, to particularly relate to and the anti-grain of one on this grain header splashes down device.

Background technology

At present most of combine is all threshing mode after traditional first cutting on the market; specifically be divided into again full feeding threshing and half to feed threshing mode, two kinds of modes all more or less have the shortcomings such as separating mechanism is complicated, complete machine weight is large, power consumption is large, efficiency is low, manufacturing cost is high.Along with the propelling of Tendency of Agricultural Machinery in China, Japanese half feed combine harvester has been introduced in recent years in southwest, simultaneously some enterprises of China also independent research part baby combine (only threshing being carried out in the cutting of rice wheat head head), the big-and-middle-sized combine of this two classes grain header relative to the north on weight and volume all decreases, but because mostly Southwestern China area is mountain and hill landform, common rice field area is little, field without tractor road, larger and heavier agricultural machinery is difficult to enter field operation.Therefore for the rural area of hilly regions in south China, the grain header of the above-mentioned type all well can not adapt to local physical geographic environment, the miniature combine harvester little, lightweight in the urgent need to a kind of volume, efficiency is high.

In order to solve the problem, in recent years, a lot of people starts to pay attention to and research and develop the combine harvester adopting harvest method of threshing prior with multiple advantages such as structure are simple, volume is little, power consumption is little, and " threshing prior to cutting " is harvesting approach field directly being carried out to threshing with the grain tassel part that nature grows.Although threshing prior to cutting has many good qualities, but owing to starting to walk evening, combine harvester adopting harvest method of threshing prior still has many shortcomings not yet to solve, as large in spatter loss, leakage receipts phenomenon is many, current combine harvester adopting harvest method of threshing prior is also in development and experimental stage, not yet enters spread.

Tilting twin-roll threshing combine is the one in Preharvest threshing harvester, stalk rice wheat is utilized to be in the state of self-sow, the stalk below rice wheat head head is clamped with clamping chain before not cutting, fringe head is sent between threshing cylinder and carry out threshing, because cylinder makes tilting, make the different fringe head of height obtain threshing, threshing performance is high, solves Lou receipts problem; Have hood above cylinder, grain splashes little to surrounding; Complete machine structure is simply compact, and consumed power is low, and operating efficiency is high.This tilting twin-roll combine harvester adopting harvest method of threshing prior efficiently solves the subject matter in threshing prior to cutting, but when applying above-mentioned technology, finding that grain can splash to field from the space between Double-drum sheller unit, causing damage.

Summary of the invention

The anti-grain that the object of this invention is to provide on a kind of Double-drum threshing machine structure splashes down device.

To achieve these goals, by the following technical solutions: the anti-grain on a kind of Double-drum threshing machine structure splashes down device, it is characterized in that: described device comprise be arranged at grain header twin-roll below, two pieces of sloping baffles in " eight " set up of character patt ern, one end that baffle plate is low is communicated with collection tanker, a brush roll is respectively equipped with below two pieces of baffle plates, brush roll is driven by driving mechanism and reversely rotates simultaneously, the brush silk of brush roll inserts rice wheat straw bar gap and prevents grain from splashing to field, grain in gap can be scanned out during rotation and deliver on baffle plate, distance between brush roll and baffle plate is rotated through after allowing brush deformation of filament.

Described brush silk is the nylon yarn of high resiliency, high abrasion.

The driving mechanism of described brush roll is that the motor of two adjustable rotating speeds drives alone, or by threshing cylinder through deceleration device Direct driver.

The present invention solves grain from the problem splashing to field between threshing cylinder, significantly reduces the percent of loss of grain header, increases work efficiency and reliability.

Accompanying drawing explanation

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

Fig. 2 is the cutaway view of A-A in Fig. 1;

Fig. 3 is the cutaway view of B-B clamping chain in Fig. 2;

Fig. 4 is the structural representation of baffle plate, brush roll, driving mechanism;

Fig. 5 is the structural representation of C-C in Fig. 4.

In figure: 1-field; 2-rice wheat; 3-collection tanker; 4-concave grate; 5-cylinder; 6-spike-tooth; 7-bow tooth; 8-baffle plate; 9-brush roll; 10-clamping chain; 11-driving mechanism.

Embodiment

Below in conjunction with the drawings and specific embodiments, the present invention will be further described.

As shown in Figures 1 to 5, on tilting twin-roll combine harvester adopting harvest method of threshing prior, two cylinder 5 fore-and-aft tilts are placed, low after front height, can carry out threshing by the rice wheat head head different to height; Be concave grate 4 below cylinder 5, be separated grain and foreign material, grain falls into collection tanker 3 below; Clamping chain 10 rotates along with former and later two axles, holds rice wheat head head and enters between threshing cylinder 5 and carry out threshing.

The device that anti-grain splashes down mainly comprises baffle plate 8, brush roll 9, driving mechanism 11.Two pieces of baffle plates 8 are below two cylinders 5, and in " eight " font slant setting, low one end communicates with collection tanker 3, and the shape of baffle plate 8 is as figure, and there is angle in front, and effect facilitates the stalk of rice wheat 2 to enter.A brush roll 9 is respectively settled in the below of two baffle plates 8, brush roll 9 is driven by driving mechanism 11 and reversely rotates simultaneously, the brush silk of brush roll 9 inserts rice wheat straw bar 2 gap and prevents grain from splashing to field, grain in gap can be scanned out during rotation delivers on baffle plate 8, distance between brush roll 9 and baffle plate 8 is rotated through after allowing brush deformation of filament, brush silk before distortion is intensive improves sealing together, catches the grain fallen down and makes it slide into baffle plate 8 to enter collection tanker 3.The driving mechanism 11 of two brush roll 9 can be that the motor of two adjustable rotating speeds drives alone, or by threshing cylinder 5 through deceleration device Direct driver.

During operation, the self-sow state of rice wheat 2 in field 1 is utilized to fix the root of rice wheat 2, clamping chain 10 clamps rice and wheat straw 2, rice wheat head head is along with the movement of clamping chain 10, stable, fully feed between two cylinders 5, two cylinders 5 tilting to lay upwards reversely rotate simultaneously, in the combing of bow tooth 7 and spike-tooth 6 with under hitting, grain comes off, grain enters in collection tanker 3 after concave grate 4 is separated, when having the grain of splashing from when splashing down between two cylinders 5, a part drops to baffle plate 8 or is suppressed the direct baffle plate 8 along tilting on intensive brush silk by baffle plate 8 and puts under in collection tanker 3, some drops in the gap of rice and wheat straw 2, it scans out by the brush roll 9 upwards reversely rotated from gap delivers on baffle plate 8, greatly reducing the grain splashed down.

Simplicity of design of the present invention is compact, can effectively reduce the grain splashed down, tilting twin-roll combine harvester adopting harvest method of threshing prior is made to reduce percent of loss further, increase work efficiency and reliability, the solution of this problem will promote that tilting twin-roll combine harvester adopting harvest method of threshing prior is better applied to the rice wheat harvesting of south China Mountainous areas.

Claims

1. the anti-grain on a Double-drum threshing machine structure splashes down device; it is characterized in that: described device comprise be arranged at grain header twin-roll below; two pieces of sloping baffles in " eight " set up of character patt ern; one end that baffle plate is low is communicated with collection tanker; a brush roll is respectively equipped with below two pieces of baffle plates; brush roll is driven by driving mechanism and reversely rotates simultaneously; the brush silk of brush roll inserts rice wheat straw bar gap and prevents grain from splashing to field; grain in gap can be scanned out during rotation and deliver on baffle plate, the distance between brush roll and baffle plate is rotated through after allowing brush deformation of filament.

2. the anti-grain on Double-drum threshing machine structure as claimed in claim 1 splashes down device, it is characterized in that: described brush silk is the nylon yarn of high resiliency, high abrasion.

3. the anti-grain on Double-drum threshing machine structure as claimed in claim 1 or 2 splashes down device, it is characterized in that: the driving mechanism of described brush roll is that the motor of two adjustable rotating speeds drives alone, or by threshing cylinder through deceleration device Direct driver.