CN204996720U - Multistage variable speed seed sieve separator - Google Patents

Abstract

A multi-stage variable-speed seed screening machine belongs to the field of seed processing equipment. In order to solve the problems of the existing seed screening machines, such as flying impurities and dust, high noise, serious environmental pollution, unfavorable health and operation of users, low screening accuracy and single function when the existing seed screening machines are in use. There is a first-stage fan installed on the upper end of the frame, and a second-stage fan is located in front of the four-layer screen in the box. The driving gear is fixed on the transmission shaft, and the driven gear is connected to the crankshaft connecting rod at one end. One end is rotatably connected to the left end of horizontal screen 1, driven gear 2 is rotatably connected to crankshaft connecting rod 2 at one end, the other end of crankshaft connecting rod 2 is rotatably connected to the left end of horizontal screen 2, driven gear 3 is connected to crankshaft connecting rod 3 at one end Rotationally connected, the other end of the crankshaft connecting rod 3 is rotatably connected with the left end of the horizontal screen 3, and the narrower end of the inclined screen is rotatably connected with the eccentric rocker arm driven by the motor. The utility model is used for seed screening.

Description

A multi-stage variable speed seed screening machine

technical field

The utility model relates to a seed screening machine, in particular to a multi-stage variable speed seed screening machine, which belongs to the field of seed processing equipment.

Background technique

At present, the seed screening machines widely used in the market include linear seed screening machines and cylindrical seed screening machines. Among them, linear seed screening machines are the most widely used. At present, domestic and foreign seed screening machines are mainly mechanical, and the screening form is relatively simple. Mainly through the vibrating motor and the electric motor to vibrate the screen to separate impurities, and most of them are open box design. However, when the existing seed screening machine is in use, impurities and dust are flying, the noise is large, the environment is seriously polluted, it is not conducive to the health and operation of the user, the screening accuracy is not high, and the function is single.

Contents of the invention

The purpose of this utility model is to provide a multi-stage variable-speed seed screening machine to solve the problem of flying impurities and dust when the existing seed screening machine is in use, the noise is large, the environmental pollution is serious, and it is not conducive to the health and operation of users Not high, single-function problem.

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

A multi-stage variable-speed seed screening machine, which includes a frame, a feed hopper, an impurity outlet, and a box body. The top of the frame is provided with a feed hopper, and the lower end of the rear side wall of the feed hopper is provided with an impurity outlet. , the front side wall of the feed hopper is an inclined side wall, and the box is arranged in the frame,

The multi-stage variable speed seed screening machine also includes a four-layer screen, an impurity tank, a motor, a belt one, a two-stage fan, a driving gear, a transmission shaft, a belt two, a crankshaft connecting rod one, a one-stage fan, a wind speed adjustment switch, an input Material conveyor belt, discharge port, crankshaft connecting rod 2, crankshaft connecting rod 3, belt 3, driven gear 1, driven gear 2, driven gear 3; the four layers of screens are horizontal screen 1, horizontal screen Net two, horizontal screen three and inclined screen,

The feeding conveyor belt is arranged inside the feed hopper, and a first-stage fan is installed on the upper end of the frame, and the first-stage fan is located on the front side of the front side wall of the feed hopper. There is an air inlet at the corresponding place, a wind speed adjustment switch is installed on the first-level fan, the outlet of the feeding hopper is connected with the feeding port at the upper end of the box, and horizontal screens are arranged in the box from top to bottom. 2. The third horizontal screen and the inclined screen. The mesh diameters of the first horizontal screen, the second horizontal screen, the third horizontal screen and the inclined screen decrease successively. The motor is arranged at the bottom of the box body. There is a secondary fan located in front of the four-layer screen in the body. The output shaft of the motor is fixedly equipped with a pulley 1, and the pulley 1 fixed on the output shaft of the motor is connected to the secondary fan through a belt. The fan is connected to the second pulley fixed on the transmission shaft through the belt three, and the two ends of the transmission shaft are connected to the front and rear side walls of the box in rotation, and the second pulley is connected to the first-stage fan through the belt two. The drive shaft is fixed with a driving gear, the driving gear meshes with the driven gear one and the driven gear two respectively, the driven gear two meshes with the driven gear three, and the driven gear one and the crankshaft connecting rod one end Rotationally connected, the other end of the crankshaft connecting rod is rotationally connected with the left end of the horizontal screen one,

The driven gear 2 is rotatably connected to one end of the crankshaft connecting rod 2, and the other end of the crankshaft connecting rod 2 is rotatably connected to the left end of the horizontal screen 2,

Driven gear three is rotationally connected to one end of crankshaft connecting rod three, and the other end of said crankshaft connecting rod three is rotationally connected to the left end of horizontal screen mesh three,

The inclined screen has a trapezoidal shape, and the narrower end of the inclined screen passes through the outlet on the front side wall of the box and is placed outside the box, and the narrower end of the inclined screen rotates with the eccentric rocker arm driven by the motor The impurity tank is arranged on the rear side of the horizontal screen one.

The beneficial effects of adopting the above technical solutions are: the multi-stage variable-speed seed screening machine of the present invention adopts a four-layer screen structure and two-stage wind screening, and through the screening of different screens, different impurities can be passed through different screens. The net is separated to realize the selection of seeds. The utility model has the advantages of convenient operation, high work efficiency and low labor intensity, and can effectively improve the working environment quality.

Description of drawings

Fig. 1 is a schematic diagram of the front view of a multi-stage variable speed seed screening machine of the present invention.

In the figure: 1—feed hopper; 2—impurity outlet; 3—horizontal screen 1; 4—impurity tank; 5—horizontal screen 2; 6—horizontal screen 3; 7—inclined screen; 8—walking wheel 9—motor; 10—belt one; 11—secondary fan; 12—driving gear; 13—drive shaft; 14—belt two; 15—crankshaft connecting rod one; 18—feeding conveyor belt; 19—box; 20—outlet; 21—crankshaft connecting rod 2; 22—crankshaft connecting rod 3; 23—belt 3; 24—frame; 25—driven gear 1; 26— Driven gear two; 27—driven gear three; 28—belt pulley one; 29—belt pulley two.

detailed description

A preferred embodiment of a multi-stage variable-speed seed screening machine of the present invention will be described in detail below in conjunction with the accompanying drawings.

As shown in Figure 1, a kind of multistage variable speed seed screening machine, it comprises frame 24, feed hopper 1, impurity outlet 2, casing 19, and the top of described frame 24 is provided with feed hopper 1, described The lower end of the rear side wall of the feed hopper 1 is provided with an impurity outlet 2, the front side wall of the feed hopper 1 is an inclined side wall, and the box 19 is arranged in the frame 24,

Described multi-stage variable-speed seed screening machine also includes four layers of screens, impurity tank 4, motor 9, belt one 10, secondary fan 11, driving gear 12, transmission shaft 13, belt two 14, crankshaft connecting rod one 15, one Stage fan 16, wind speed adjustment switch 17, material feeding conveyor belt 18, material outlet 20, crankshaft connecting rod 2 21, crankshaft connecting rod 3 22, belt 3 23, driven gear 1 25, driven gear 2 26, driven gear Three 27; the four layers of screens are respectively a horizontal screen one 3, a horizontal screen two 5, a horizontal screen three 6 and an inclined screen 7,

The feeding conveyor belt 18 is arranged in the inside of the feed hopper 1, and a primary fan 16 is installed on the upper end of the frame 24, and the primary fan 16 is positioned at the front side of the front side wall of the feed hopper 1. The side wall is provided with an air inlet corresponding to the first-level fan 16, and the first-level fan 16 is provided with a wind speed adjustment switch 17. Horizontal screen one 3, horizontal screen two 5, horizontal screen three 6 and inclined screen 7 are arranged in turn from top to bottom, and the horizontal screen one 3, horizontal screen two 5, horizontal screen three 6 and inclined The mesh diameter of screen cloth 7 decreases successively, and described motor 9 is arranged on the below in casing 19, and the front that is positioned at four layers of screen cloth is provided with secondary fan 11 in casing 19, and the output shaft of motor 9 is fixedly equipped with Pulley one 28, the pulley one 28 that is fixedly installed on the motor 9 output shaft is connected with secondary fan 11 by belt one 10, and described secondary fan 11 is fixedly mounted on the belt on transmission shaft 13 by belt three 23 Wheel two 29 transmission connections, the two ends of the transmission shaft 13 are rotationally connected with the front and rear side walls of the casing 19, the belt pulley two 29 are transmission connected with the primary fan 16 through the belt two 14, and the transmission shaft 13 is fixedly equipped with Driving gear 12, described driving gear 12 meshes with driven gear one 25 and driven gear two 26 respectively, described driven gear two 26 meshes with driven gear three 27, driven gear one 25 and crankshaft connecting rod one 15 One end is rotationally connected, and the other end of the crankshaft connecting rod-15 is rotationally connected with the left end of the horizontal screen cloth-3,

Driven gear 2 26 is rotationally connected with crankshaft connecting rod 2 21 one end, and described crankshaft connecting rod 2 21 other ends are rotationally connected with the left end of horizontal screen cloth 2 5,

The driven gear 3 27 is rotationally connected to one end of the crankshaft connecting rod 3 22, and the other end of the crankshaft connecting rod 22 is rotationally connected to the left end of the horizontal screen 3 6,

Described inclined screen cloth 7 is trapezoidal shape, and the narrower end of inclined screen cloth 7 passes through the discharge port 20 on the front side wall of casing 19 and is placed outside casing 19, and the narrower end of inclined screen cloth 7 is connected with motor 9 The driven eccentric rocker is connected in rotation, and the impurity tank 4 is arranged on the rear side of the horizontal screen one 3 .

The upper surface of the feeding conveyor belt 18 is provided with rib-shaped protrusions.

Four traveling wheels 8 are installed on the bottom of the box body 19 .

When working: before the utility model is connected to the power supply, first clean up the screening machine, pour the seeds to be selected into the feed hopper 1 that can adjust the feeding amount, switch on the power supply, and adjust the wind speed adjustment switch 17 according to the size and weight of the seeds , the feeding conveyor belt 18 with prismatic protrusions can evenly send the seeds into the feeding hopper 1, and the first-stage fan 16 can blow out the lighter impurities and unfulfilled seeds from the impurity outlet 2. In order to protect the environment, the impurities Outlet 2 can be covered with an impurity collection bag for collection; the seeds screened by the first-level wind force enter the box body 19, and are screened by four layers of screen vibration (the crankshaft connecting rod drives the screen to perform circular reciprocating motion) and two-stage wind screen. The seeds are screened, and the large impurities that cannot be missed are removed by the impurity tank 4 through vibration. In order to protect the environment, the impurity tank 4 can also be collected with an impurity collection bag. The secondary fan 11 can be screened by wind while vibrating. The remaining dust, light impurities and particles are blown to the impurity tank 4 by the secondary fan 11. The three-layer horizontal screen is composed of screen pieces of different specifications, which can be finely screened step by step. The inclined screen 7 is driven by the eccentric rocker arm to reciprocate and swing. The seeds are discharged from the outlet 20 at a constant speed, the inclined screen 7 is in a trapezoidal shape, and the narrower end of the inclined screen 7 passes through the outlet 20 on the front side wall of the casing 19 and is placed outside the casing 19 to facilitate seed collection. , The inclined screen mesh 7 has smaller meshes, and the seeds cannot be leaked, and mainly screens sand and pebbles; the walking wheels 8 can be self-locking, which is convenient for moving and fixing during work.

Organically combine vibration screening and wind screening to realize multi-level wind screening and multi-layer vibration screening, which greatly saves human resources and reduces environmental pollution at the same time.

Claims (3)

1. A multi-stage variable-speed seed screening machine, which includes a frame (24), a feed hopper (1), an impurity outlet (2), and a box body (19), and the top of the frame (24) is provided with an inlet Hopper (1), the lower end of the rear side wall of the feed hopper (1) is provided with an impurity outlet (2), the front side wall of the feed hopper (1) is a sloped side wall, and the box (19) is set Inside the frame (24), It is characterized in that: the multi-stage variable speed seed screening machine also includes a four-layer screen, an impurity tank (4), a motor (9), a belt one (10), a secondary fan (11), a driving gear (12), a transmission Shaft (13), belt two (14), crankshaft connecting rod one (15), primary fan (16), wind speed adjustment switch (17), feeding conveyor belt (18), material outlet (20), crankshaft connecting rod Two (21), crankshaft connecting rod three (22), belt three (23), driven gear one (25), driven gear two (26), driven gear three (27); the four layers of screens are respectively It is horizontal screen one (3), horizontal screen two (5), horizontal screen three (6) and inclined screen (7), The feeding conveyor belt (18) is arranged inside the feeding hopper (1), and a primary fan (16) is installed on the upper end of the frame (24), and the primary fan (16) is located in front of the feeding hopper (1). On the front side of the side wall, the inclined side wall of the feed hopper (1) is provided with an air inlet corresponding to the primary fan (16), and the primary fan (16) is provided with a wind speed adjustment switch (17). The outlet of (1) is connected with the feed inlet on the upper end of the box body (19), and the box body (19) is provided with a horizontal screen one (3), a horizontal screen two (5), a horizontal screen from top to bottom Net three (6) and inclined screen (7), the mesh diameters of horizontal screen one (3), horizontal screen two (5), horizontal screen three (6) and inclined screen (7) reduce, the motor (9) is arranged below the box body (19), and a secondary fan (11) is arranged in front of the four-layer screen in the box body (19), and the output shaft of the motor (9) is fixed The first pulley (28) is installed, and the first pulley (28) fixed on the output shaft of the motor (9) is connected to the secondary fan (11) through the belt one (10). The secondary fan (11) The belt three (23) is connected with the pulley two (29) fixedly mounted on the transmission shaft (13), and the two ends of the transmission shaft (13) are rotationally connected with the front and rear side walls of the box body (19). The second pulley (29) is connected to the primary fan (16) through the second belt (14), and the drive shaft (13) is fixedly equipped with a driving gear (12), and the driving gear (12) is connected with the driven gear respectively. The first (25) meshes with the second driven gear (26), the second driven gear (26) meshes with the third driven gear (27), and the first driven gear (25) rotates with one end of the crankshaft connecting rod one (15) connection, the other end of the crankshaft connecting rod one (15) is rotationally connected with the left end of the horizontal screen one (3), The driven gear 2 (26) is rotatably connected to one end of the crankshaft connecting rod 2 (21), and the other end of the crankshaft connecting rod 2 (21) is rotatably connected to the left end of the horizontal screen 2 (5). The driven gear 3 (27) is rotationally connected to one end of the crankshaft connecting rod 3 (22), and the other end of the crankshaft connecting rod 3 (22) is rotationally connected to the left end of the horizontal screen 3 (6). The inclined screen (7) has a trapezoidal shape, and the narrower end of the inclined screen (7) passes through the discharge port (20) on the front side wall of the box (19) and is placed outside the box (19). The narrower end of the screen (7) is rotatably connected to the rocker arm of the eccentric wheel driven by the motor (9), and the impurity tank (4) is arranged on the rear side of the horizontal screen one (3). 2. A multi-stage variable-speed seed screening machine according to claim 1, characterized in that: the upper surface of the feeding conveyor belt (18) is provided with rib-shaped protrusions. 3. A multi-stage variable speed seed screening machine according to claim 1 or 2, characterized in that four traveling wheels (8) are installed at the bottom of the box (19).