CN205017891U - Rotatory cleaning sieve device of corn thresher - Google Patents

Abstract

The utility model relates to a rotary cleaning and screening device for a corn thresher. In the device of the present utility model, its corn cob feed port (1) is connected with a first cylindrical cavity (2), and a threshing main shaft ( 21), the shell is a first trommel (23); the first trommel (23) is provided with two layers of trommels (30, 40) and a trommel shell with transmission gears (51) at both ends of the outer wall body (50), forming three independent and interlinked cavities (3, 4, 5), the first cylindrical cavity (2), and the left side of other cavities are all connected with the outside world; the drum sieve (30, 40) and the right side of the drum shell (50) are all fixed on the circular end plate (11) and the transmission gear (51) cooperates with the transmission shaft assembly (13). The utility model has the advantages of compact and reasonable structure, multi-layer drum type rotary cleaning, thorough separation effect, and can reduce problems such as device blockage; and can satisfy corn threshing with high water content, and has high practicability.

Description

Rotary cleaning and screening device for corn thresher

technical field

The utility model relates to the technical field of corn thresher equipment, in particular to a corn thresher cleaning and screening device.

Background technique

When threshing corn cobs, most corn threshers or corn combine harvesters adopt a reciprocating cleaning screen structure, which can perform batch and rapid threshing of corn cobs, but the existing technology also has shortcomings, such as long cleaning area, complex structure, The noise is high, especially with snow and other impurities. When the moisture content of corn is 30%~40%, it is easy to block the sieve, resulting in unclean cleaning and snow inclusions, etc., resulting in a high impurity rate in corn. In order to adapt to the smooth threshing and cleaning of corn with different moisture content, the existing technology also has different solutions, such as adding multiple layers of fixed sieves, and implementing multiple diversions of corn kernels, but the structure is complicated, the later maintenance is inconvenient, and the effect is mediocre.

Contents of the invention

The utility model aims at the deficiencies of the prior art, and provides a new type of rotary cleaning and screening device for corn thresher. Through the flexible rotation of the multi-layer screen as a whole, the cleaning and separation of corn grains can be completed under the action of gentle and efficient centrifugal force. The structure is compact and reasonable, the effect is remarkable, and the later maintenance work can be reduced.

In order to achieve the above object, the utility model adopts the following technical solutions:

A rotary cleaning screen device for a corn thresher. The upper right side of the device is provided with a corn cob inlet, a first cylindrical cavity connected with the corn cob inlet, and a spiral screw is arranged in the first cylindrical cavity. The threshing main shaft of the blade, the shell of the first cylindrical cavity is a first drum screen; the second drum screen, the third drum screen and a drum shell with transmission gears at both ends of the outer wall are arranged in sequence outside the first drum screen Body, forming the second cavity, the third cavity and the fourth cavity, the first cylindrical cavity, the second cavity, the third cavity and the left side of the fourth cavity are all connected with the outside world; the second drum screen 1, the third drum screen and the right side of the drum shell are all fixed on the circular end plate, and the inner wall is provided with pushing helical blades; the transmission gear is matched with the transmission shaft assembly.

The technical scheme that the present invention can also adopt:

The threshing main shaft and the transmission shaft assembly are driven through a transmission belt, and the transmission shaft assembly is provided with a reducer.

The said pushing screw blade is perpendicular to the inner wall of the second drum screen, the third drum screen and the drum shell, and forms an angle of 20°~50° with the shaft core.

The first cylindrical cavity is connected to the pulp throwing machine on the left, the second cavity is connected to the first sliding port; the third cavity is connected to the transfer screen; the fourth cavity is connected to the second sliding port .

The rotary cleaning screen device of the corn thresher of the utility model has a compact and reasonable structure. Through the multi-layer drum type rotary cleaning, the effect is remarkable, the impurities are completely separated, and the problems such as blocking of impurities such as snow accumulation can be reduced; and it can meet the requirements of high water content. High-quality corn threshing, high practicability.

Description of drawings

Fig. 1, the three-dimensional cross-sectional structure schematic diagram of the present utility model;

FIG. 2 is a schematic diagram of the structure on the right side of FIG. 1 .

detailed description

The utility model will be further described below with reference to the accompanying drawings.

As shown in Figure 1 and Figure 2, the corn thresher rotary cleaning screen device is provided with a corn cob inlet 1 at its upper right side, and a first cylindrical cavity 2 connected with the corn cob inlet 1, A threshing main shaft 21 with a helical blade 20 is arranged in the first cylindrical cavity 2, and the threshing main shaft 21 is also equipped with a threshing claw 22. The shell of the first cylindrical cavity 2 is a first trommel 23, the first trommel The screen 23 is fixed on the device structure and does not move; the first drum screen 23 is provided with a second drum screen 30, a third drum screen 40, and a drum housing 50 with transmission gears 51 at both ends of the outer wall to form a second drum screen. The cavity 3, the third cavity 4 and the fourth cavity 5, the first cylindrical cavity 2, the second cavity 3, the third cavity 4 and the fourth cavity 5 are independent in space but communicated through the sieve holes, Their left sides are all communicated with the outside world; the right side of the second trommel 30, the third trommel 40 and the drum shell 50 are all fixed on the circular end plate 11, and the inner wall is provided with push screw blades 12; transmission gear 51 Cooperate with the drive shaft assembly 13 to drive the drum shell 50 etc. to rotate. The drive shaft assembly 13 is provided with a speed reducer 14 to adjust or reduce the transmission speed.

The threshing main shaft 21 and the power transmission shaft assembly 13 are driven through transmission belts, and can also be jointly operated by other structures such as gears;

In order to send out corn flakes and corn kernels more effectively, the push screw blade 12 is perpendicular to the inner wall of the second drum screen 30, the third drum screen 40 and the drum shell 50, and forms an angle of 20°~50° with the shaft core.

The left side of the cavity is connected to the outside world, the first cylindrical cavity 2 is connected to the pulp throwing machine 15 on the left side, the second cavity 3 is connected to the first sliding port 31; the third cavity 4 is connected to the transfer screen 41 ; The fourth cavity 5 is connected to the second slide port 52 .

During the operation, the corncob enters the first cylindrical cavity 2 through the corncob feeding port 1, and is threshed under the action of the spiral blade 20 and the threshing claw 22, etc., and the corncob is thrown out by the pulp throwing machine 15, and the corn kernels, Crumbs, snow impurities, etc., stay or pass through the first drum sieve 23, the second drum sieve 30 and the third drum sieve 40 with smaller screen holes under the action of rotating centrifugal force to separate corn kernels, crushed pulp and Impurities.

The rotary cleaning sieve device of the corn thresher of the utility model has a compact and reasonable structure, multi-layer drum type rotary cleaning, the separation effect is thorough, and problems such as device blockage can be reduced; and it can satisfy corn threshing with high water content, and has high practicability .

Claims (4)

1. a husker sheller rotates sorting screen device, on the right side of device, upper end is provided with a corn ear feeding mouth (1), it is characterized in that: first circular cylindrical chamber (2) be connected with corn ear feeding mouth (1), in the first circular cylindrical chamber (2), be provided with the threshing spindle (21) of a band helical blade (20), the shell of the first circular cylindrical chamber (2) is one first rotary screen (23); The drum housing (50) at second tin roller sieve (30), the 3rd rotary screen (40) and outer wall two ends belt driving gear (51) is outwards provided with successively at the first rotary screen (23), form the second cavity (3), the 3rd cavity (4) and the 4th cavity (5), the first circular cylindrical chamber (2), the second cavity (3), the 3rd cavity (4) and the 4th cavity (5) left side all communicate with the external world; The right side of second tin roller sieve (30), the 3rd rotary screen (40) and drum housing (50) is all fixed on (11), and inwall is all provided with and pushes helical blade (12); Travelling gear (51) coordinates with transmission shaft component (13).

2. a kind of husker sheller as claimed in claim 1 rotates sorting screen device; it is characterized in that: described threshing spindle (21) coordinates transmission with transmission shaft component (13) by driving-belt, and transmission shaft component (13) is provided with reductor (14).

3. a kind of husker sheller as claimed in claim 1 rotates sorting screen device; it is characterized in that: described propelling movement helical blade (12) perpendicular to second tin roller sieve (30), the 3rd rotary screen (40) and the inwall of drum housing (50), and with axle core angulation 20 ° ~ 50 °.

4. a kind of husker sheller as described in as arbitrary in claims 1 to 3 rotates sorting screen device, it is characterized in that: described the first circular cylindrical chamber (2) is connected with the throwing flesh machine (15) in left side, the second cavity (3) is connected with the first lubricating substance mouth (31); 3rd cavity (4) sieves (41) and is connected with transfer; 4th cavity (5) is connected with the second lubricating substance mouth (52).