Variable angle environmental vibration sieve

Abstract

The application discloses a variable-angle environment-friendly vibrating chute screen, characterized in that the variable-angle environment-friendly vibrating chute screen comprises a fixed frame, a chute screen box and an air warehouse; a discharge end of the chute screen box is rotatably fixed to the fixed frame, a feeding end of the chute screen box is liftable and liftable fixed to the fixed frame through a lifting device, a vibrating motor is fixed to the chute screen box and is arranged to make the chute screen box reciprocate along a grain rolling direction; and the air warehouse is arranged between the discharge end of the chute screen box and a receiving hopper. The variable-angle environment-friendly vibrating chute screen can adjust the angle of the device according to requirements and improve the chute screening efficiency of grains.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of grain equipment. More particularly, the present application relates to a variable angle environment-friendly vibrating sieve. BACKGROUND

[0002] After the grain is harvested, it is dried, dusted and collected for storage in a granary. In the prior art, a separate vibrating sieve is used to remove dust from the grain. The grain enters the vibrating sieve through the inlet and is discharged from the outlet. This dust removal method has defects. The grain is aggregated in the vibrating sieve, and there is still a lot of dust on the grain after the vibrating sieve treatment. SUMMARY

[0003] The purpose of the present application is to provide a variable angle environment-friendly vibrating sieve, which can adjust the angle of the device according to the needs and improve the efficiency of the grain sieve.

[0004] The technical scheme adopted by the present application to solve the technical problem is: a variable angle environment-friendly vibrating sieve, comprising a fixed frame, a sieve box and an air bin; the discharge end of the sieve box is rotatably fixed to the fixed frame, the feed end of the sieve box is liftable and liftable fixed to the fixed frame by a lifting device, a vibrating motor is fixed to the sieve box, which is arranged to make the sieve box reciprocate along the grain rolling direction; an air bin is arranged between the discharge end of the sieve box and the receiving hopper.

[0005] Preferably, the lifting device comprises a lifting jack, a hand winch and a fixed pulley; one end of the lifting jack is hinged to the sieve box, the other end of the lifting jack is hinged to the fixed frame, and the hand winch is connected to the lifting jack through the fixed pulley and the steel wire rope.

[0006] Preferably, a set of lifting jacks is symmetrically arranged on both sides of the sieve box, the lifting jack comprises two lifting rods hinged to each other, two sets of bases are arranged on the fixed frame, the base corresponds to the lifting jack one by one, the lifting rod located at the upper part of the lifting jack is hinged to the sieve box, the lifting rod located at the lower part of the lifting jack is hinged to the lower part of the base, the top end of the base is provided with a first pulley, the lifting rod located at the lower part of the lifting jack is provided with a second pulley, one side of the base is provided with a third pulley, the hand winch is installed on one of the bases, and the second pulleys on the two sets of lifting jacks and the first pulleys and the third pulleys on the two sets of bases are connected through the steel wire rope and the hand winch.

[0007] Preferably, the feed end of the sieve box is connected with the sieve cascade feed hopper, two layers of sieve nets are arranged in the sieve box to divide the sieve box into upper space, middle space and lower space, the sieve box is provided with upper discharge hole and located in the upper space, the sieve box is provided with lower discharge hole and located in the lower space, the middle space corresponds to the sieve box connected with the sieve discharge bin, the discharge end of the sieve discharge bin is connected with the front end of the air bin through a flexible sealing strip, the air bin is slidingly connected with the track, the track is fixed on the fixed frame, and the lower end of the air bin is connected with a sieve receiving hopper.

[0008] Preferably, the rear end of the air bin is connected with the sieve rear air bin square variable round pipe through an extensible pipe, the sieve rear air bin square variable round pipe is connected with a sieve air pipe, and the sieve air pipe is connected with the sieve pulse dust collector inlet.

[0009] Preferably, the sieve pulse dust collector comprises a sieve pulse dust removal air cover, a sieve air fan square variable round pipe connected with the sieve pulse dust removal air cover, and a sieve air fan connected with the sieve air fan square variable round pipe.

[0010] Preferably, the sieve air fan is fixed on the base.

[0011] Preferably, the discharge end of the sieve box is rotatably fixed on the base, and the base is fixed on the fixed frame.

[0012] The base connected with the discharge end of the sieve box and the base connected with the lifting fork are both fixed on the fixed frame through damping pads.

[0013] Preferably, the bottom of the fixed frame is provided with traveling wheels.

[0014] The present application at least has the following advantages:

[0015] 1) Both ends of the sieve box are rotatably connected, the discharge end of the sieve box is rotatable around a circle, the inclination angle of the sieve box is adjusted through the lifting device, and the accurate screening of different weight grains is realized.

[0016] 2) The sieve box is fixed with a vibration motor, the screening efficiency of grains is improved through the vibration motor, and the vibration angle is adjusted separately when the vibration motor is installed in the previous environmental protection vibration sieve, and the problem is solved.

[0017] 3) The screened grains are further subjected to air separation, and the impurity removal and dust removal quality of the grains is improved.

[0018] Other advantages, objects and features of the present application will be embodied in part by the following description, and will be understood by those skilled in the art through research and practice of the present application. Attached Figure Description

[0019] Fig. 1 This is a schematic diagram of the structure of the variable-angle environmentally friendly vibrating screen of the present invention;

[0020] Fig. 2 This is a schematic diagram of the structure of a lifting device according to an embodiment of the present invention.

[0021] Explanation of reference numerals in the attached diagram: 1 Fixed frame, 2 Screen box, 3 Air chamber, 4 Vibrating motor, 5 Hand winch, 6 Lifting rod, 7 Base, 8 First trolley, 9 Second trolley, 10 Third trolley, 11 Screen waterfall feed hopper, 12 Screen, 13 Upper discharge hole, 14 Lower discharge hole, 15 Screen discharge hopper, 16 Track, 17 Screen receiving hopper, 18 Screen rear air chamber square-to-round pipe, 19 Screen air duct, 20 Screen pulse dust collector, 21 Screen pulse dust collector hood, 22 Screen blower square-to-round pipe, 23 Screen blower, 24 Traveling wheel, 25 Screwdriver, 26 Wire rope lifting lug, 27 Wire rope. Detailed Implementation

[0022] The present invention will now be described in detail and completely with reference to the accompanying drawings. Those skilled in the art will be able to implement the present invention based on these descriptions. Before describing the present invention with reference to the accompanying drawings, it should be particularly noted that the technical solutions and features provided in various parts of the present invention, including the following description, can be combined with each other without conflict.

[0023] Furthermore, the embodiments of the present invention described below are generally only some, not all, of the embodiments of the present invention. Therefore, all other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The specific implementation process is as follows:

[0025] like Figs. 1-2 As shown, the present invention provides an environmentally friendly vibrating screen with a variable angle, including a fixed frame 1, a screen box 2, and an air chamber 3; the discharge end of the screen box 2 is rotatably fixed to the fixed frame 1, and the feed end of the screen box 2 is vertically fixed to the fixed frame 1 via a lifting device; a vibrating motor 4 is fixed on the screen box 2, which is configured to make the screen box 2 reciprocate along the grain rolling direction; an air chamber 3 is provided between the discharge end of the screen box 2 and the receiving hopper.

[0026] In this embodiment, both ends of the sluice box 2 are rotatably connected. With the discharge end of the sluice box 2 as the rotation point, the tilt angle of the sluice box 2 is adjusted by the lifting device to achieve precise screening of grains of different weights. A vibration motor 4 is fixed on the sluice box 2. The number of vibration motors can be one or more. By adjusting the vibration force and frequency of the vibration motor 4, the screening efficiency of grain vibration flotation grading and flow rate is improved. Through the special fixing form of the hinge shafts at both ends of the sluice box 2, the environmentally friendly vibrating sluice box can simultaneously have the functions of a sluice box and a vibrating screen. The included angle of the sluice box can also be adjusted at any time. When the vibration motor 4 of this application is started, the sluice box 2 is allowed to swing back and forth along its axis, and the vibration amount is controlled at about 6mm.

[0027] This technical solution may also include the following technical details to better achieve the technical effect: the lifting device includes a lifting fork, a hand-cranked winch 5 and a fixed pulley; one end of the lifting fork is hinged to the screen box 2, and the other end of the lifting fork is hinged to the fixed frame 1; the hand-cranked winch 5 is connected to the lifting fork through the fixed pulley and the wire rope 27; the included angle of the lifting fork is adjusted by the winding and unwinding of the wire rope 27, thereby adjusting the tilt angle of the screen box 2.

[0028] This technical solution may also include the following technical details to better achieve the technical effect: A set of lifting forks is symmetrically arranged on both sides of the screen box 2. The lifting fork includes two lifting rods 6 that are hinged to each other. Two sets of bases 7 are arranged on the fixed frame 1. The bases 7 correspond one-to-one with the lifting forks. The lifting rods 6 at the upper part of the lifting fork are hinged to the screen box 2. The lifting rods 6 at the lower part of the lifting fork are hinged to the lower part of the base 7. A first trolley 8 is arranged at the top of the base 7. A second trolley 9 is arranged on the lifting rods 6 at the lower part of the lifting fork. A third trolley 10 is arranged on one side of the base 7. The hand-cranked winch 5 is installed on one of the bases 7. The second trolleys 9 on the two sets of lifting forks and the first trolleys 8 and third trolleys 10 on the two sets of bases 7 are linked with the hand-cranked winch 5 through the steel wire rope 27. The angle adjustment of the screen box 2 is completed by the winding and unwinding of the steel wire rope 27.

[0029] In the above embodiment, the wire rope 27 starts from the hand-cranked winch 5, passes sequentially around the first pulley 8 on the same side base 7, the second pulley 9 on the same side lifting fork, then returns to the first pulley 8 on the same side base 7 (therefore, this pulley is a double-wheeled pulley), the third pulley 10, and passes through the third pulley 10, the first pulley 8, and the second pulley 9 on the other base 7, and finally is fixed to the wire rope lug 26 set on the other base 7. By adjusting the winding and unwinding of the wire rope 27, the linkage of the two sets of lifting forks is realized, so that one hand-cranked winch 5 can simultaneously drive the lifting forks on both sides, improving the convenience of operation. Generally, the angle of the screen box 2 is adjusted between 11° and 50° by adjusting the lifting forks.

[0030] This technical solution may also include the following technical details to better achieve the technical effect: the feed end of the sluice box 2 is connected to the sluice waterfall feed hopper 11; the sluice box 2 is provided with two layers of screens 12 that divide the sluice box 2 into an upper space, a middle space, and a lower space; the sluice box 2 is provided with an upper discharge hole 13 located in the upper space, through which impurities in the upper space are discharged; the sluice box 2 is provided with a lower discharge hole 14 located in the lower space, through which impurities in the lower space are discharged; and the middle space corresponds to the sluice... The screen box 2 is connected to the screen discharge hopper 15. The discharge end of the screen discharge hopper 15 is connected to the front end of the air chamber 3 through a flexible sealing strip. When the screen box 2 reciprocates under the action of the vibrating motor 4, it squeezes the flexible sealing strip, and the flexible sealing strip will produce a certain deformation. The air chamber 3 is slidably connected to the track 16. The track 16 is fixed to the fixed frame 1. The lower end of the air chamber 3 is connected to the screen receiving hopper 17. Due to the movement of the screen box 2, the screen discharge hopper 15 will drive the air chamber 3 to have a certain range of movement. Therefore, the track 16 is installed on the fixed frame 1 to ensure the movement of the air chamber 3.

[0031] This technical solution may also include the following technical details to better achieve the technical effect: the rear end of the air chamber 3 is connected to the square-to-round pipe 18 of the air chamber after the screen through a retractable pipe, the square-to-round pipe 18 of the air chamber after the screen is connected to the screen duct 19, and the screen duct 19 is connected to the inlet of the screen pulse dust collector 20.

[0032] This technical solution may also include the following technical details to better achieve the technical effect: The sluice screen pulse dust collector 20 includes a sluice screen pulse dust collector hood 21, a sluice screen fan square-to-round pipe 22 connected to the sluice screen pulse dust collector hood 21, and a sluice screen fan 23 connected to the sluice screen fan square-to-round pipe 22.

[0033] The working principle of the variable-angle environmentally friendly vibrating screen: Grain carrying impurities passes through the screen box 2. Larger impurities are separated from the screen through the upper space, while smaller impurities are discharged through the lower discharge hole 14 in the lower space. Grain in the middle space passes through the middle space, the screen discharge hopper 15, and enters the air chamber 3. The air chamber 3 is used for grain air separation and dust collection. Air enters from the front end of the air chamber 3. Due to the airflow, as the grain falls in the air chamber 3, the airflow passes through the grain layer, carrying away impurities and dust that are lighter than the grain. The dust and impurities pass through the square-to-round pipe 18 and the screen air duct 19 of the screen and enter the screen pulse dust collector 20 for settling, separating the impurities from the air. The impurities enter the auger 25 of the pulse dust collector, and the air is then filtered and discharged through the screen pulse dust collector 20. The grain finally falls into the screen receiving hopper 17, completing the screen process.

[0034] This technical solution may also include the following technical details to better achieve the technical effect: the screen blower 23 is fixed on the base 7.

[0035] This technical solution may also include the following technical details to better achieve the technical effect: the discharge end of the sieve box 2 is rotatably fixed on the base 7, and the base 7 is fixed on the fixed frame 1;

[0036] The base 7 connecting the discharge end of the sluice box 2 and the base 7 connecting the lifting auger are both fixed to the fixed frame 1 by shock-absorbing pads.

[0037] This technical solution may also include the following technical details to better achieve the technical effect: the bottom of the fixed frame 1 is provided with a walking wheel 2424 to facilitate the movement of the environmentally friendly vibrating screen.

[0038] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and embodiments shown and described herein.

Claims

1. A variable-angle environmentally friendly vibrating screen, characterized in that, It includes a fixed frame, a sluice box, and a ventilation chamber; the discharge end of the sluice box is rotatably fixed to the fixed frame, and the feed end of the sluice box is vertically fixed to the fixed frame via a lifting device; a vibrating motor is fixed on the sluice box, which is configured to make the sluice box reciprocate along the grain rolling direction; a ventilation chamber is provided between the discharge end of the sluice box and the receiving hopper; The lifting device includes a lifting fork, a hand-cranked winch, and a fixed pulley. One end of the lifting fork is hinged to the screen box, and the other end is hinged to the fixed frame. The hand-cranked winch is connected to the lifting fork via the fixed pulley and a steel wire rope. A set of lifting forks is symmetrically arranged on both sides of the screen box. Each lifting fork includes two lifting rods that are hinged to each other. Two sets of bases are provided on the fixed frame. Each base corresponds to a lifting fork. The upper lifting rod of the lifting fork is hinged to the screen box, and the lower lifting rod of the lifting fork is hinged to the lower part of the base. A first trolley is provided at the top of the base, a second trolley is provided on the lower lifting rod of the lifting fork, and a third trolley is provided on one side of the base. The hand-cranked winch is installed on one of the bases. The second trolleys on the two sets of lifting forks and the first and third trolleys on the two sets of bases are linked together via a steel wire rope and the hand-cranked winch. The wire rope starts from the hand-cranked winch, passes sequentially around the first pulley on the same side base, the second pulley on the same side lifting fork, then returns to the first pulley and the third pulley on the same side base, passes through the third pulley, the first pulley and the second pulley on another base, and is finally fixed to the wire rope lifting lug on the other base; the angle of the screen box is adjusted between 11° and 50° by adjusting the lifting fork.

2. The variable-angle environmentally friendly vibrating screen as described in claim 1, characterized in that, The feed end of the sluice box is connected to the sluice waterfall feed hopper. The sluice box is equipped with two layers of screens that divide the sluice box into an upper space, a middle space and a lower space. The sluice box is provided with an upper discharge hole located in the upper space and a lower discharge hole located in the lower space. The sluice box corresponding to the middle space is connected to the sluice discharge hopper. The discharge end of the sluice discharge hopper is connected to the front end of the air chamber through a flexible sealing strip. The air chamber is slidably connected to the track, and the track is fixed to the fixed frame. The lower end of the air chamber is connected to the sluice receiving hopper.

3. The variable-angle environmentally friendly vibrating screen as described in claim 2, characterized in that, The rear end of the air chamber is connected to the square-to-round pipe of the air chamber after the screen through a retractable pipe. The square-to-round pipe of the air chamber after the screen is connected to the screen duct. The screen duct is connected to the inlet of the screen pulse dust collector.

4. The variable-angle environmentally friendly vibrating screen as described in claim 3, characterized in that, The sluice screen pulse dust collector includes a sluice screen pulse dust collector hood, a sluice screen fan square-to-round pipe connected to the sluice screen pulse dust collector hood, and a sluice screen fan connected to the sluice screen fan square-to-round pipe.

5. The variable-angle environmentally friendly vibrating screen as described in claim 4, characterized in that, The sieve blower is fixed on the base.

6. The variable-angle environmentally friendly vibrating screen as described in claim 5, characterized in that, The discharge end of the sieve box is rotatably fixed to the base, and the base is fixed to the fixed frame; The base connecting the discharge end of the sluice box and the base connecting the lifting auger are both fixed to the fixed frame by shock-absorbing pads.

7. The variable-angle environmentally friendly vibrating screen as described in claim 6, characterized in that, The bottom of the fixed frame is equipped with wheels.

Images