CN211100015U

CN211100015U - Drum-type corn seed screening installation

Info

Publication number: CN211100015U
Application number: CN201921982440.6U
Authority: CN
Inventors: 董中民
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-07-28
Anticipated expiration: 2029-11-18

Abstract

Drum-type maize seed screening installation, including the drum sieve, the outside fixedly connected with of screen cloth one or the rigid steel ring of multichannel, radial lug has on the steel ring, radial outside that corresponds at the steel ring is provided with the arc circle, the arc circle be the reducing circle, the diameter of arc circle both ends subtotal is greater than the diameter of mid portion, the mid portion inner surface is the profile of tooth, the lug does not interfere with arc circle both ends part when the arc circle, interferes with the profile of tooth part mutually, the outside face fixedly connected with many normal directions's of arc circle slide bar, the slide bar slides and wears to establish in the hole on the connecting plate, wears to be equipped with the spring on the slide bar between arc circle and the connecting plate, the slide bar swivelling joint has the nut, the bottom surface of nut is located the connecting plate. This screening equipment efficiency is high, and is effectual.

Description

Drum-type corn seed screening installation

Technical Field

The utility model relates to a maize sorting facilities, in particular to formula of circling round maize seed screening installation belongs to agricultural machine technical field.

Background

The screening and grading of corn seeds is a necessary process before the corn seeds are sold and used, the initial screening of the corn seeds is carried out manually, with the development of science and technology, a plurality of types of corn screening machines appear, for example, agricultural mechanical equipment for efficiently screening corn seeds, which is disclosed in chinese patent application No. 2018206107218, a corn seed screening machine, which is disclosed in 2015209959733, a corn seed screening machine, which is disclosed in 2018205959314, etc., the conventional idea of such equipment is to separate seeds of different sizes by using screens of different mesh numbers, and a drum screen (also called a rotary screen) can be applied to the classification of materials, the method has mature application in agriculture, for example, the Chinese date grading drum screen disclosed in Chinese patent No. 2017215934605, the fruit and vegetable grading drum screen classifier disclosed in 2018206502749 and other equipment can be applied to the grading of corn seeds after selecting a screen with a proper mesh number, but the drum screen classifier has the following problems in the corn seed screening: because the hole of screen cloth is crescent after the past, so little granule can fall from the front, but because the shape of maize seed is one big one little one end "trapezoidal", can not pass through anterior screen cloth can its less tip block in the sieve mesh, moreover because the existence of screen cloth rotation centrifugal force, the granule that blocks can block more tightly more, so often need shut down the manual work and take out, the granule that blocks still can influence normal unloading, so in drum sieve maize is hierarchical, this is the problem that needs to solve.

Disclosure of Invention

An object of the utility model is to overcome the above-mentioned problem that present drum sieve exists in maize classification operation, provide a drum-type maize seed screening installation.

In order to realize the purpose of the utility model, the following technical proposal is adopted: the drum-type corn seed screening equipment comprises a drum screen, wherein the drum screen is connected with a central driving shaft, the central driving shaft is driven by a motor, the drum screen inclines downwards from a feeding end to the back, the screen meshes of the drum screen are in various mesh numbers from front to back, the mesh numbers are sequentially reduced from front to back, a receiving hopper is arranged below each mesh number, one or more rigid steel rings are fixedly connected to the outer parts of the screen meshes of the drum screen, radial convex blocks are arranged on the steel rings, arc rings are arranged on the radial outer parts corresponding to the steel rings, the arc rings are variable-diameter rings, the diameters of the two end parts of the arc rings are larger than the diameters of the middle parts, the inner surfaces of the middle parts are in a tooth shape, the convex blocks do not interfere with the two end parts of the arc rings when passing through the arc rings and interfere with the tooth-shaped parts, a plurality of sliding rods in the normal direction are fixedly connected to the outer side surfaces of, the sliding rod between the arc-shaped ring and the connecting plate is provided with a spring in a penetrating way, the sliding rod is screwed with a nut, and the bottom surface of the nut is positioned on the connecting plate.

Further, the method comprises the following steps of; the top of the lug is arc-shaped.

The utility model discloses an actively beneficial technological effect lies in: because the screening device is provided with the rigid steel ring and the convex blocks, in the rotating process of the roller, the convex block lines are guided to enter the arc-shaped rings through the arc sections at the two ends of the arc-shaped rings, when the tooth-shaped parts are rotated, the convex blocks interfere with the tooth shapes, the radial outward compression springs continue to rotate, the roller screen can vibrate under the action of the tooth shapes in the rotating process, corn particles clamped in the screen holes can be timely vibrated off in the vibrating process, the screen holes are not blocked so as to influence normal screening, and the phenomenon that the clamping is tighter and tighter in the rotating process is also avoided.

Drawings

Figure 1 is a schematic diagram of the cross section of the screen and the steel ring of the present invention.

Fig. 2 is a schematic view of a trommel screen.

Detailed Description

In order to explain the utility model more fully, the utility model provides an implementation example. These examples are merely illustrative of the present invention and do not limit the scope of the present invention.

The invention is explained in further detail with reference to the drawings, in which the reference symbols are: 1: a drum screen; 2: a central drive shaft; 3: a receiving hopper; 4, steel ring; 5: a bump; 6: an arc-shaped ring; 7: a slide bar; 8: a spring; 9: a connecting plate; 10: a nut; 11: tooth shape.

As shown in the attached drawings, the drum type corn seed screening device comprises a drum screen 1, the drum screen is connected with a central driving shaft 2, the central driving shaft is driven by a motor, the drum screen inclines downwards from the feeding end to the back, the screen mesh of the drum screen has a plurality of mesh numbers from front to back, the mesh numbers from front to back are sequentially reduced, a receiving hopper 3 is arranged below each mesh with the mesh number, one or more rigid steel rings are fixedly connected to the outside of the screen mesh, 4 are the steel rings, two steel rings are arranged in the embodiment, radial lugs 5 are arranged on the steel rings, the tops of the lugs are arc-shaped, the arc-shaped is shown in figure 1, the arc-shaped is favorable for being combined with a tooth-shaped part to pass through, the lugs on the two steel rings in the embodiment can be right front and back and can also be staggered from front to back, arc-shaped rings 6 are arranged on the radial outside corresponding to the, the diameters of the two end parts of the arc ring are larger than that of the middle part, the inner surface of the middle part is in a tooth shape, 11 shows in the tooth shape, a bump does not interfere with the two end parts of the arc ring when passing through the arc ring and interferes with the tooth-shaped part, the outer side surface of the arc ring is fixedly connected with a plurality of sliding rods 7 in the normal direction, 3 sliding rods are arranged in the embodiment and are arranged in holes in a sliding mode, springs 8 penetrate through the sliding rods between the arc ring and the connecting plate, nuts 10 are screwed on the sliding rods, the bottom surfaces of the nuts are located on the connection 9, the connecting plate is also in an arc shape, and the connecting plate is fixedly connected.

This equipment during operation, add the drum sieve with the maize from the front end, the drum sieve rotates, because the slope of drum sieve is downward, the material is at the rotation in-process backward movement naturally, less material falls to corresponding hopper that connects in the sieve mesh of front portion, the head card is gone into the sieve mesh but the material that can't pass through is at cylinder pivoted in-process, the lug line gets into the arc circle through the segmental arc at arc circle both ends guide, when rotating the profile of tooth position, the lug produces the interference with the profile of tooth, radial outside compression spring continues to rotate, can make the drum sieve produce the vibration owing to the effect of profile of tooth in the rotation in-process, the vibration in-process can in time shake the maize granule of card in the sieve mesh and fall, make the sieve mesh not blockked up so that influence normal screening, also avoided rotating the phenomenon that the in-process card.

After the embodiments of the present invention have been described in detail, those skilled in the art can clearly understand that various changes and modifications can be made without departing from the scope and spirit of the above claims, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention all fall within the scope of the technical solution of the present invention, and the present invention is not limited to the embodiments of the examples given in the specification.

Claims

1. Drum-type maize seed screening installation, including the drum sieve, the drum sieve be connected with central drive shaft, central drive shaft passes through motor drive, and the drum sieve slopes downwards backward from the feed end, the screen cloth of drum sieve be multiple mesh number from the front to the back, mesh number reduces from the front to the back in proper order, the screen cloth below of every mesh number all is provided with and connects hopper, its characterized in that: the outside fixedly connected with of screen cloth of drum sieve has one or multichannel rigid steel ring, has radial lug on the steel ring, is provided with the arc circle in the radial outside that the steel ring corresponds, the arc circle be the reducing circle, the diameter of arc circle both ends part is greater than the diameter of mid portion, mid portion inner surface is the profile of tooth, the lug does not interfere with arc circle both ends part when passing through the arc circle, interferes with the profile of tooth part mutually, the outside face fixedly connected with many normal direction's of arc circle slide bar, the slide bar radially slides and wears to establish in the hole on the connecting plate, wears to be equipped with the spring on the slide bar between arc circle and the connecting plate, the nut has been screwed on the slide bar, the bottom surface of nut is located the connecting plate.

2. The roller-type corn seed screening apparatus as claimed in claim 1, wherein: the top of the lug is arc-shaped.