CN111299142A

CN111299142A - Seed sieving mechanism

Info

Publication number: CN111299142A
Application number: CN202010006845.7A
Authority: CN
Inventors: 李燕芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-03
Filing date: 2020-01-03
Publication date: 2020-06-19

Abstract

The present invention provides a seed screening apparatus, comprising: the device comprises a support, a cross beam and a turntable, wherein the turntable comprises a gear ring and a chassis, the gear ring is rotatably connected with the chassis, and the chassis is provided with a first strip-shaped structure and a second strip-shaped structure which are vertically crossed; a gear ring is arranged on the outer side of the gear ring, and an arc-shaped bulge is arranged on the inner side of the gear ring; the first driving mechanism comprises a first motor, a disc and a connecting rod which are connected in turn, and the connecting rod is hinged with the chassis; the second driving mechanism is arranged on the outer side of the chassis and comprises a base, a second motor and a gear, the base is connected with the chassis, the gear is meshed with the gear ring, and the first driving mechanism and the second driving mechanism are started to complete screening of seeds. This sieving mechanism uses manpower sparingly, and easy and simple to handle and screening efficiency are high.

Description

Seed sieving mechanism

Technical Field

The invention relates to the technical field of agricultural equipment, in particular to a seed screening device.

Background

The seeds are the specific propagules of gymnosperms and angiosperms and are formed by pollination and fertilization of ovules, the formation of the seeds ensures that young sporophyte ovules are protected by a mother and obtain sufficient nutrients like a fetus of a mammal, and the seeds also have various structures suitable for spreading or resisting adverse conditions, thereby creating good conditions for the ethnic continuation of the plants. Before vegetable sowing, seeds to be sown need to be selected due to the fact that the seeds are different in size and quality, screening and classification are carried out according to the size and the fullness degree of the seeds, the seeds with larger or smaller particles are not beneficial to cultivation, various problems are easy to occur in the planting process, and the planting efficiency of the vegetables can be effectively improved only by selecting the seeds with moderate particle size for planting; the traditional seed classification screening adopts manual picking or screening by a sieve, and the method has high labor intensity and low screening efficiency; screening equipment is adopted for screening, but the structure is too complex, the use cost is high, and the screening and classifying effects are not ideal.

Disclosure of Invention

The invention mainly aims to provide a seed screening device which can effectively solve the problems in the background technology.

In order to achieve the purpose, the invention adopts the technical scheme that: a screening apparatus, comprising:

a bracket for supporting the screening device, the bracket being divided into a first bracket and a second bracket,

the cross beam is connected with the first support and the second support and is provided with a first sliding groove;

the turntable is arranged on the cross beam and comprises a gear ring and a chassis, the gear ring is rotationally connected with the chassis, and the chassis is provided with a first strip-shaped structure and a second strip-shaped structure which are vertically crossed; the outer side of the gear ring is provided with teeth, the inner side of the gear ring is provided with arc-shaped bulges, and the arc-shaped bulges are arranged at intervals along the circumferential direction of the gear ring; the first strip-shaped structure is provided with a first sliding rail, and the first sliding rail is matched with the first sliding groove; a second sliding groove is arranged on the second strip-shaped structure,

the screen drum is arranged in the rotary table, positioned on the second bar-shaped structure and connected with the second bar-shaped structure; a second sliding rail is arranged at the bottom of the screen cylinder and is connected with the second sliding groove, the screen cylinder can move along the length direction of the second strip-shaped structure, a screen plate is arranged in the screen cylinder, and a plurality of screen holes are formed in the screen plate;

the first driving mechanism is arranged on the first support and comprises a first motor, a disc and a connecting rod which are sequentially connected, and the connecting rod is hinged with the chassis;

the second driving mechanism is arranged on the outer side of the chassis and comprises a base, a second motor and a gear, the output end of the second motor is connected with the gear, the base is connected with the chassis, and the gear is meshed with the gear ring;

when the first motor is started, the first driving mechanism can enable the rotary table to move along the direction of the cross beam so as to drive the screen drum to move along the length direction of the cross beam;

when the second motor is started, the gear ring is driven to rotate by the second motor, so that the outer wall of the screen drum is intermittently abutted to the arc-shaped protrusion, and the arc-shaped protrusion pushes the screen drum to move along the length direction of the second bar-shaped structure when rotating.

Furthermore, a support column is arranged on the first strip-shaped structure, a buffer spring is connected between the outer wall of the screen drum and the support column, and the buffer spring is distributed along the length direction of the second strip-shaped structure.

Further, the screening device comprises two screen drums, and the two screen drums are respectively connected with the supporting column through the buffer springs.

Furthermore, the two screen drums are symmetrically distributed by taking the supporting column as the center.

Furthermore, a vertical sliding groove is formed in the inner wall of the screen cylinder, and the screen plate can be arranged in the screen cylinder along the vertical sliding groove or taken out of the screen cylinder.

Further, the diameter of the sieve holes ranges from 0.5 cm to 0.8 cm.

Further, the screen cylinder is a cylinder with a sealed bottom and an opened top.

According to the screening device provided by the invention, the motor drives the connecting rod to drive the turntable to move, so that the turntable and the gear are meshed to rotate; the protruding extrusion sieve section of thick bamboo of arc of carousel takes place the displacement, realizes the screening of rocking of a sieve section of thick bamboo inside material, and this sieving mechanism uses manpower sparingly, and easy and simple to handle and screening efficiency are high.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic diagram of a seed screening apparatus according to an embodiment of the present invention;

FIG. 2 is a bottom view of a seed screening apparatus according to an embodiment of the present invention;

FIG. 3 is a partial enlarged view of a seed screening apparatus according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a seed screening apparatus according to an embodiment of the present invention;

FIG. 5 is a structural diagram of a screen drum of a seed screening apparatus according to an embodiment of the present invention;

FIG. 6 is a structural diagram of a gear ring of a seed screening apparatus according to an embodiment of the present invention;

FIG. 7 is a structural diagram of a turntable of a seed screening apparatus according to an embodiment of the present invention;

FIG. 8 is a structural diagram of a screen drum of a seed screening apparatus according to an embodiment of the present invention;

reference numerals: 101 — a first support; 102 — a first drive mechanism; 104 — a first runner; 105-a cross beam; 106-sieve plate; 107-screen cylinder; 108-vertical chute; 109 — first bar form; 110-a pillar; 111-a spring; 112-a second support; 113 — a second drive mechanism; 114-teeth; 115-arc shaped protrusions; 116 — a second bar structure; 117 — a second runner; 118-a second slide rail, 119-a gear ring, 120-a first slide rail; 121-a chassis; 1021 — a first motor; 1022 — a disc; 1023-connecting rod; 1131 — a base; 1132 — a second motor; 1133, gear.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The embodiment of the invention provides a seed screening device, which comprises:

a support for supporting the screening device, the support being divided into a first support 101 and a second support 112.

And the cross beam 105 is connected with the first bracket 101 and the second bracket 112, and the first sliding groove 104 is formed in the cross beam 105.

And the turntable is arranged on the cross beam 105 and comprises a gear ring 119 and a chassis 121.

Further, the gear ring 119 is rotatably connected with the chassis 121;

further, the bottom of the chassis 121 is provided with a first bar-shaped structure 109 and a second bar-shaped structure 116 which are vertically intersected;

further, the first bar-shaped structure 109 and the second bar-shaped structure 116 are integrally formed, so as to ensure that the chassis 121 has better stability;

furthermore, teeth 114 are arranged on the outer side of a gear ring 119 of the turntable, arc-shaped bulges 115 are arranged on the inner side of the gear ring 119 of the turntable, and the arc-shaped bulges 115 are distributed irregularly;

further, a first slide rail 120 is arranged at the bottom of the first bar-shaped structure 109, and the first slide rail 120 is matched with the first slide groove 104 of the cross beam 105;

further, a second sliding slot 117 is disposed on the second bar structure 116.

The screen drum 107 is arranged in the turntable, positioned on the second bar-shaped structure 116 and connected with the second bar-shaped structure 116;

further, the bottom of the screen drum 107 is provided with a second slide rail 118, the second slide rail 118 is connected with a second slide groove 117 on the second bar-shaped structure 116, and the screen drum 107 can move along the direction of the second bar-shaped structure 116;

further, a sieve plate 106 is arranged in the sieve cylinder 107, and a plurality of sieve holes are arranged on the sieve plate 106;

furthermore, the sieve plate 106 is provided with a plurality of sieve holes, and the diameter range of the sieve holes is 0.5-0.8 cm.

The first driving mechanism 102 is arranged on the first bracket 101 and fixedly connected with the first bracket 101;

further, the first driving mechanism 102 includes a first motor 1021, a disk 1022 and a link 1023 connected in this order, and the link 1023 is hinged with the chassis 121 of the turntable.

The second driving mechanism 113 is arranged outside the chassis 121 of the turntable, and includes a base 1131, a second motor 1132 and a gear 1133;

further, the base 1131 of the second driving mechanism 113 is connected to the chassis 121 of the turntable, and the gear 1133 is engaged with the teeth 114 outside the gear ring 119 of the turntable.

Furthermore, a support column 110 is arranged on the first bar-shaped structure 109, and a buffer spring 111 is arranged on the surface of the support column 110;

further, the screening device comprises two screen cylinders 107, the screen cylinders 107 are respectively connected with the support column 110 through springs 111, and when the screen cylinders 107 are displaced, the springs 111 can ensure the stability of the displacement.

Further, the two screen cylinders 107 are symmetrically distributed around the support column 110.

Furthermore, a vertical sliding groove 108 is formed in the inner wall of the screen cylinder 107, and the screen plate 106 can be easily placed in the screen cylinder 107 or taken out of the screen cylinder 107 through the vertical sliding groove 108, so that the taking and placing convenience is guaranteed.

Further, the screen cylinder 107 is a cylinder with a sealed bottom and an open top.

Furthermore, the proper sieve plate can be replaced according to the screening requirement of the seed size.

When the first motor 1021 is started, the first driving mechanism 102 can make the turntable move along the cross beam 105 to drive the screen drum 107 to move along the length direction of the cross beam 105;

when the second motor 1132 is started, the gear ring 119 is driven to rotate by the second motor 1132, so that the outer wall of the screen cylinder 107 is intermittently abutted to the arc-shaped protrusion 115, and the arc-shaped protrusion 115 pushes the screen cylinder 107 to move along the length direction of the second bar-shaped structure 116 when rotating.

The seed screening device provided by the embodiment of the invention has three screening modes, wherein:

in the first screening mode, only the first motor 1021 is activated, and the second motor 1132 is not activated. The chassis 121 of the turntable is driven by the first driving mechanism 102 and moves along the length direction of the cross beam 105, so that the whole turntable moves along the length direction of the cross beam 105, the chassis 121 is rotatably connected with the gear ring 119, the gear ring 119 is meshed with the gear 1133, when the turntable moves along the length direction of the cross beam 105, the gear ring 119 rotates with the gear 1133, the arc-shaped bulge 115 on the inner side of the gear ring 119 rotates on the gear ring 119, the sieve drum 107 is pushed to move along the length direction of the second bar-shaped structure 116, and then the screening of seeds is completed.

In the second screening mode, only the second motor 1132 is activated, and the first motor 1021 is not activated. The gear 1133 in the second driving mechanism 113 rotates, so that the gear ring 119 rotates relative to the chassis 121, and the arc-shaped protrusion 115 on the inner side of the gear ring 119 pushes the screen drum 107 to rotate in place, thereby completing the screening of seeds.

In the third screening mode, the first motor 1021 and the second motor 1132 are simultaneously started, the first driving mechanism 102 drives the chassis 121 of the turntable to move along the length direction of the cross beam 105, and then the whole turntable moves along the length direction of the cross beam 105; and the gear ring 119 is rotated relative to the chassis 121 by the rotation of the gear 1133 in the second driving mechanism 113; the arc-shaped bulge 115 on the inner side of the gear ring 119 pushes the screen drum 107 to rotate, and then the screening of the seeds is completed.

First screening mode and second kind screening mode are single motor drive, and the screening dynamics is less strong compared in third kind screening mode, can accomplish the screening to less seed, and third kind screening mode is two motor drive, carries out on the carousel through two kinds of screening modes, and the screening dynamics is strong, can accomplish and filter more kinds of seed.

The embodiment of the invention provides a seed screening device which has multiple screening modes, can be switched freely according to screening conditions, is simple, convenient and quick to operate and has high practicability.

The embodiment of the invention also provides an instruction for using the seed screening device, which comprises the following steps:

selecting a proper sieve plate according to the screening requirement;

placing the sieve plate into a sieve cylinder;

selecting different screening modes to start the motor according to different screening conditions for screening;

and after the screening is finished, the motor is turned off, the screen drum is taken out, the screen plate is taken out from the screen drum, and the seeds meeting the screening requirement after the screening are poured out from the screen drum.

Although the present invention has been described herein with reference to the illustrated embodiments thereof, which are intended to be preferred embodiments of the present invention, it is to be understood that the invention is not limited thereto, and that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure.

Claims

1. A seed screening apparatus, comprising:

2. A seed screening apparatus according to claim 1, wherein: the first bar-shaped structure is provided with a supporting column, a buffer spring is connected between the outer wall of the screen drum and the supporting column, and the buffer spring is distributed along the length direction of the second bar-shaped structure.

3. A seed screening apparatus according to claim 2, wherein: the screening device comprises two screen drums, and the two screen drums are respectively connected with the supporting columns through the buffer springs.

4. A seed screening apparatus according to claim 3, wherein: the two screen drums are symmetrically distributed by taking the supporting column as the center.

5. A seed screening apparatus according to claim 1, wherein: the screen plate can be arranged in the screen cylinder along the vertical sliding groove or taken out from the screen cylinder.

6. A seed screening apparatus according to claim 1, wherein: the diameter range of the sieve holes is 0.5-0.8 cm.

7. A seed screening apparatus according to claim 1, wherein: the screen cylinder is a cylinder with a sealed bottom and an open top.