CN103920647B - A kind of multifactor adjustable drum sieve and drum sieve distinguish screening device - Google Patents

Abstract

A multi-factor adjustable cylinder screen and cylinder screening and cleaning device, which includes a centrifugal fan (5), an air inlet hood (4), a discharge box (6) and a cylinder screen, an air inlet hood (4) It is funnel-shaped, the small end of the air inlet hood (4) is used as the air inlet to connect with the air outlet of the centrifugal fan (5) through the pipeline, and the large end of the air inlet hood (4) is used as the air outlet to surround the cylindrical screen body (3) One end of the air duct forms an air duct, and a feed inlet (11) is set above the air inlet hood (4), and a feed plate is arranged on the feed port (11), and the outlet of the feed plate extends into the cylindrical sieve body (3) , the output box (6) is placed under the frame (2). The invention has the advantages of simple operation and good screening effect, and the size of the hole diameter of the cylindrical screen can be changed according to different types of materials, and has wide application and strong adaptability.

Description

A multi-factor adjustable cylinder screen and cylinder screening and cleaning device

technical field

The invention relates to the field of sieving and classifying rice seeds, in particular to a multi-factor adjustable cylinder sieve and a cylinder sieving and cleaning device.

Background technique

At present, according to the cleaning principle, there are three main methods of cleaning: plane screening, airflow screening, and pocket screening, and plane screening is the most widely used. However, the planar sieve screens grains through vibration, and the whole machine is heavy, with high vibration and noise and complex structure. Since the 1980s, experts at home and abroad have adjusted the structure of the combine harvester cleaning device. The cylindrical screen is a new type of cleaning device that breaks through the flat screen. It has a simple structure, light weight, and vibration Small size, low noise and high productivity. At present, the existing cylindrical screens are generally of a separate structure, that is, there are main shafts, guide vanes or spiral guide plates inside, which are troublesome to use. It is difficult to replace the screen mesh of the cylindrical screen, which is labor-intensive and time-consuming, and there are many fault points during work. , the production efficiency is not high, and the parameters are not adjustable, too restrictive and poor in practicability.

Contents of the invention

The purpose of the present invention is to solve the above-mentioned problems existing in the existing cylinder screening device, and propose a multi-factor adjustable cylinder screen and cylinder screening and cleaning device, which has good classification effect and is easy to operate.

Technical scheme of the present invention is:

A multi-factor adjustable cylindrical screen, which includes a motor, a pulley, a belt, a cylindrical screen body, a frame, a supporting bearing, lifting ears and a screen mesh, and the cylindrical screen body is arranged in the frame, through The support bearing is fixed on the frame, the pulley is set on the output shaft of the motor, one end of the belt is set on the pulley, and the other end is set on the cylindrical sieve body, which drives the cylindrical sieve body to rotate, and the inside of the cylindrical sieve body There are lugs for fixing the screen.

The motor of the present invention is connected to the first frequency converter.

There are at least three support bearings in the present invention, one end of the support bearing is fixed on the frame, and the other end is equipped with a roller, which is supported by rolling contact with the ring.

The cylindrical sieve body of the present invention includes two circular rings and at least two lifting lugs, the two circular rings are respectively fixed on the frame through supporting bearings, and the lifting lugs are half-frame elements, one side of which faces the central axis of the cylindrical sieve body and Parallel to it, the two ends of the lifting lug are movably fixed on the ring, which is used to adjust the distance between the lifting lug and the central axis of the cylindrical sieve body.

The two ends of the lifting lug of the present invention have a U-shaped groove respectively, and are fixed on the ring by screwing in the U-shaped groove, and the lifting lug is adjusted to face the cylindrical sieve body by changing the position of the screw fixed on the U-shaped groove distance from the central axis.

There are six lifting lugs of the present invention, which are evenly arranged on the ring.

The bottom of the frame of the present invention is provided with supporting feet, and the inclination angle of the cylindrical screening and cleaning device is adjusted by the length of the supporting feet.

A multi-factor adjustable cylindrical screening and cleaning device, which includes a centrifugal fan, an air inlet hood, a discharge box and the aforementioned cylindrical sieve. The road is connected with the air outlet of the centrifugal fan, and the large mouth end of the air inlet hood is used as the air outlet to surround one end of the cylindrical sieve body to form an air duct. The outlet of the plate extends to the cylindrical sieve body, and the discharge box is placed under the frame.

The centrifugal fan of the present invention is connected with the second frequency converter.

Beneficial effects of the present invention:

In the cylindrical screening and cleaning device of the present invention, by adjusting the length of the lifting lugs, the diameter of the cylindrical screen can be adjusted steplessly within a certain range, and the materials are easier to classify during the rotation process, thereby improving the classification quality.

The cylindrical screen body of the present invention has no rotating shaft inside, which reduces the quality of the entire screening structure, and the rotational speed of the cylindrical screen body can be adjusted through a frequency converter connected with the motor. Therefore, the speed of the motor can be adjusted according to the different types, quality and size of the seeds.

In the present invention, the air volume of the cylindrical screening and cleaning device can be adjusted by a frequency converter connected with the centrifugal fan, and the inclination angle of the cylindrical sieve body can be adjusted by the length of the supporting legs at the lower end of the body.

The invention has the advantages of simple operation and good screening effect, and the hole diameter of the cylindrical screen can be changed according to different types of materials, and has wide application and strong adaptability.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a side view of the structure of the present invention.

Among them: 1. Motor; 2. Frame; 3. Cylindrical sieve body; 4. Air inlet hood; 5. Centrifugal fan; 6. Discharge box; 7. First inverter; 8. Pulley; Ear; 10, support bearing; 11, feed port.

detailed description

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

As shown in Figure 1, a multi-factor adjustable cylindrical screening and cleaning device includes a centrifugal fan 5, an air inlet hood 4, a discharge box 6 and a cylindrical screen, and the cylindrical screen includes a motor 1 and a pulley 8 , belt, cylinder sieve body 3, frame 2, support bearing 10, lifting lug 9 and screen cloth, described cylinder screen body 3 is located in the frame 2, is fixed on the frame 2 by support bearing 10, belt The wheel 8 is set on the output shaft of the motor 1, one end of the belt is set on the pulley 8, and the other end is set on the cylindrical sieve body 3, which drives the cylindrical sieve body 3 to rotate. The lifting lug 9 of the fixed screen; the air inlet cover 4 is funnel-shaped, the small mouth end of the air inlet cover 4 is used as the air inlet and connected with the air outlet of the centrifugal fan 5 through the pipeline, and the large mouth end of the air inlet cover 4 is used as the air outlet to surround the circle One end of the cylinder sieve body 3 forms an air duct, and a feed inlet 11 is set above the air inlet hood 4, and a feed plate is arranged on the feed inlet 11, and the outlet of the feed plate extends into the cylinder screen body 3, and the discharge box 6 is placed under the rack 2.

The cylindrical sieve body 3 of the present invention includes two rings and at least two lifting lugs 9, the two rings are respectively fixed on the frame 2 through support bearings 10, the lifting lugs 9 are half frame elements, one side of which faces the cylinder The central axis of the sieve body 3 is parallel to it, and the two ends of the lifting lug 9 are movably fixed on the ring for adjusting the distance between the lifting lug 9 and the central axis of the cylindrical sieve body 3 .

Both ends of the lifting lug 9 of the present invention have a U-shaped groove respectively, and are fixed in the U-shaped groove by screws and fixed on the ring, and the lifting lug 9 is adjusted to face the cylinder by changing the position of the screw fixed on the U-shaped groove The distance between the central axis of the screen body 3; there are six lifting lugs 9, which are evenly arranged on the ring.

The bottom of the frame 2 of the present invention is provided with supporting feet, and the inclination angle of the cylindrical screening and cleaning device is adjusted by the length of the supporting feet.

The centrifugal fan 5 of the present invention is connected with the second frequency converter.

When working, first connect the power supply, and the motor 1 connected to the frequency converter 7 drives the cylindrical screen body 3 and the cylindrical screen inside to rotate together. The speed can be adjusted by the frequency converter 7 as required. Rotation is performed to make the cylindrical sieve body 3 rotate smoothly. After the cylindrical sieve body 3 operates normally, the material enters the cylindrical screen mesh in the cylindrical sieve body 3 through the feed port 11 for classification. When grading, the wind from the centrifugal fan 5 connected to the frequency converter 7 passes through the air inlet hood 4 and enters the cylindrical screen in the cylindrical screen body 3, blowing light debris out of the frame 2, and the air volume can be adjusted according to the needs. Adjustment, and the screened material falls into the discharge box 6 located at the lower side of the frame 2.

The parts not involved in the present invention are the same as the prior art or can be realized by adopting the prior art.

Claims (7)

1. a kind of multifactor adjustable drum sieve, it is characterized in that it includes motor（1）, belt wheel（8）, belt, cylinder sieve nest（3）、 Frame（2）, spring bearing（10）, hanger（9）And screen cloth, the cylinder sieve nest（3）It is located at frame（2）It is interior, by spring bearing （10）It is fixed on frame（2）On, belt wheel（8）It is sleeved on motor（1）Output shaft on, one end of belt is sleeved on belt wheel（8）On, The other end is sleeved on cylinder sieve nest（3）On, drive cylinder sieve nest（3）Rotation, cylinder sieve nest（3）Inside be provided with for gravity flow screen The hanger of net（9）；Cylinder sieve nest（3）Including two annulus and at least two hangers（9）, two annulus are respectively by spring bearing （10）It is fixed on frame（2）On, hanger（9）It is half frame element, wherein while towards cylinder sieve nest（3）Central axis and with Parallel, hanger（9）Two ends be movably fixed on annulus, for adjusting hanger（9）With cylinder sieve nest（3）Central axis The distance between.

2. multifactor adjustable drum sieve according to claim 1, it is characterized in that the motor（1）Connect the first frequency converter （7）.

3. multifactor adjustable drum sieve according to claim 1, it is characterized in that spring bearing（10）At least three, branch Support bearing（10）One end be fixed on frame（2）On, the other end is equipped with roller, and roller is in rolling contact support with annulus.

4. multifactor adjustable drum sieve according to claim 1, it is characterized in that hanger（9）Two ends opened one respectively U-type groove, is stuck in U-type groove by screw and is fixed on annulus, and be fixed on the position in U-type groove by changing screw hangs to adjust Ear（9）Towards cylinder sieve nest（3）The distance of central axis.

5. multifactor adjustable drum sieve according to claim 1, it is characterized in that hanger（9）It is six, uniform arrangement On annulus.

6. a kind of multifactor adjustable drum sieve distinguishes screening device, it is characterized in that it includes centrifugal blower（5）, air intake cover（4）, go out Magazine（6）Described drum sieve any with claim 1-5, air intake cover（4）It is infundibulate, air intake cover（4）The conduct of osculum end Air inlet passes through pipeline and centrifugal blower（5）Air outlet be connected, air intake cover（4）Big opening end as air outlet surround drum sieve Body（3）One end, formed air channel, air intake cover（4）Top open up charging aperture（11）, charging aperture（11）Upper setting feedboard, enters The outlet of flitch extends to cylinder sieve nest（3）It is interior, go out magazine（6）It is placed in frame（2）Lower section.

7. multifactor adjustable drum sieve according to claim 6 distinguishes screening device, it is characterized in that centrifugal blower（5）Connection Second frequency converter.