CN114651593A - a separation device - Google Patents

Abstract

The invention discloses a separation device, which comprises a vibrating separation screen; one side of the separation screen is provided with an excavation mechanism for conveying the mixture to the separation screen; The excavation mechanism is provided with a number of hanging teeth matched with the separation screen. When the separation screen vibrates, the edge of the separation screen moves in the gap between the plurality of hanging teeth. The invention is used in the process of separating finished products and impurities in the mixture, realizes the automatic separation process, saves labor cost and increases work efficiency. It is convenient to remove the impurities carried on the finished product, to ensure that the least amount of impurities can be attached to the finished product, so that the surface of the finished product is clean enough, and the workload of post-cleaning is reduced. The finished product and impurities are thrown up by the separation screen, so that the adhering mixture is beaten and broken, and the function of throwing impurities and separation of the separation screen is realized.

Description

a separation device

technical field

The invention relates to the technical field of screening, in particular to a separation device.

Background technique

In the process of modern production, it is often necessary to separate two objects of different sizes and materials, and a special separation screen is required for separation. However, when separating objects with high viscosity and difficult separation, the separation effect of ordinary separation screens Poor, the yield of separation is low. In order to increase the efficiency of separation and realize automatic production, it is necessary to realize line separation and reduce the labor intensity of labor, but the separation effect of the separation device in the prior art is poor, and the situation of sieve jamming is prone to occur.

SUMMARY OF THE INVENTION

In view of the above deficiencies of the prior art, the present invention provides a separation device that can effectively avoid sieve jamming.

In order to achieve the above-mentioned purpose of the invention, the technical scheme adopted in the present invention is:

A separation device is provided, which includes a separation screen that throws the mixture backwards by vibration;

One side of the separation screen is provided with an excavation mechanism for conveying the mixture to the separation screen; a gap is provided between the excavation mechanism and the separation screen to facilitate the vibration of the separation screen;

The excavation mechanism is provided with a plurality of hanging teeth matched with the separation screen. When the separation screen vibrates, the edge of the separation screen moves in the gap between the plurality of hanging teeth.

This solution is used to separate mixtures of different sizes or materials. The mixture is excavated from the ground by the excavating mechanism and transported to the separation screen. Through the vibration of the separation screen, the mixture is subjected to impact and collision on the separation screen, so that the mixture is Separation to avoid sticking together, the separated large-sized objects are transported to the next process along the separation screen, and the small-sized objects fall from the gaps of the separation screen to realize the separation of the mixture. A number of hanging teeth fill the gap between the excavation mechanism and the separation screen to prevent objects from running out of the gap. Even during the vibration of the separation screen, a number of hanging teeth can well prevent objects from entering the gap without affecting the vibration of the separation screen.

Further, the separation screen is inclined and the excavating mechanism includes a shovel plate spliced on one side of the bottom of the separation screen, one side of the shovel plate is evenly provided with a number of shovel teeth, and a number of hanging teeth are arranged on the other side of the shovel plate.

The beneficial effects of adopting the above technical scheme are: the mixture enters the separation screen from the lower end of the separation screen, and is transported out from the upper end of the separation screen, thereby increasing the residence time of the mixture on the separation screen and increasing the separation effect. In this embodiment, the mixture is shoveled onto the separation screen through the shovel plate and the shovel teeth, and the hanging teeth and the separation screen are seamlessly connected.

Further, the shovel plate is a folded structure protruding toward the outside of the separation screen, and a plurality of shovel teeth are arranged in a protruding shape on the shovel plate.

The beneficial effects of adopting the above technical scheme are: forming a tip on the shovel plate, reducing the resistance of the mixture to dig out, and increasing the effect of shoveling the mixture onto the separation screen.

Further, the hanging teeth have a U-shaped structure, and the openings of the hanging teeth face the separation screen.

The beneficial effects of adopting the above technical scheme are: the hanging teeth form a sufficient gap between the shovel plate and the separating screen, and the structural strength is high.

Further, the separation screen is arranged between two parallel support frames, the upper ends of the two support frames are connected by several cross beams, the two sides of the separation screen are respectively arranged on the two support frames by the driving mechanism, and the two sides of the separation screen pass through. The vibrating side plate is connected with the driving mechanism.

Further, the driving mechanism includes a reduction box that is connected to the rear power output shaft of the tractor, and the output shafts on both sides of the reduction box are provided with driving pulleys. The utility model is arranged on two support frames, and the two ends of the output shaft are respectively connected with the vibration side plate through a crank transmission mechanism.

The beneficial effects of adopting the above technical solution are: the solution can be installed on a tractor, and the rear power output shaft of the tractor is used to drive the separation screen to vibrate, which is suitable for various mixture separation scenarios. At the same time, it is driven by the tractor to achieve flow separation.

Further, the crank transmission mechanism includes cranks arranged at both ends of the output shaft, the crank is hinged with a driving connecting rod, and the driving connecting rod is hinged with the end of the driven connecting rod; the driven connecting rod is hinged on the support frame, and the driving connecting rod is connected with the end of the driven connecting rod. The hinge points between the driven links are all set on the vibrating side plates.

The beneficial effect of adopting the above technical scheme is: by swinging the driving link, the driving link drives the driven link to swing, and then the side plate starts to vibrate, and drives the separation screen to vibrate. Under the pushing action of the previous mixture, the shoveled mixture enters the separation screen. The vibration of the separation screen causes the mixture to be thrown in the backward conveying direction. When it falls down, it hits the separation screen, and the adhering mixture will be broken and finely divided. The mixture is passed through a separating sieve as an undersize to complete the separation.

Further, the vibration side plates on both sides are connected by a vibration intermediate shaft, and the hinge point between the driving link and the driven link is set at the end of the vibration intermediate shaft.

The beneficial effect of adopting the above technical scheme is that the intermediate shaft connects two vibrating side plates, so as to ensure the synchronism of the vibrating process and make the vibrating structure of the separation screen stable.

Further, the driven link includes a first link and a second link that are parallel to each other, the drive link is hinged with the first link, and one ends of the first link and the second link are both hinged on the support frame, and the first link is hinged with the first link. The other ends of the first connecting rod and the second connecting rod are both hinged on the vibration side plate, and the first connecting rod and the second connecting rod are connected by a fixed connecting rod.

The beneficial effect of adopting the above technical solution is that in the process of driving the vibrating side plate to move up and down, the first connecting rod and the second connecting rod can further increase the stability of the vibrating side plate.

Further, the output shafts on both sides of the reduction box are provided with driving pulleys, the output shaft is provided with driven pulleys that cooperate with the driving pulleys on both sides, the driving pulleys and the driven pulleys are connected by belts, and the reduction box is The belts on both sides are symmetrical about the gearbox input axis.

The beneficial effect of adopting the above technical scheme is that two belts are simultaneously driven to rotate by one reduction box, and the output shaft is provided with rotating power at the same time, with sufficient power, high simultaneity, and uniform force.

Further, a gap is provided between the vibration side plates on both sides and the support frame, the vibration side plates are fixed on both sides of the separation screen, and the sides of the vibration side plates are provided with front baffles that fill the gap between the vibration side plates and the support frame, An active connection is made between the front baffle and the support frame.

Further, a smooth transition plate is arranged between the front baffle plate and the vibrating side plate to facilitate the conveying of the mixture.

The beneficial effect of adopting the above technical solution is that during the conveying process of the mixture, the separated objects can be conveyed smoothly, and leakage from the gap of the support frame is avoided.

Further, the upper end of the support frame is provided with a connecting frame connected with the tractor.

Further, the connecting frame includes two figure-eight suspension plates, the lower ends of the two suspension plates are both provided with two vertical fixing plates, and the upper ends of the suspension plates and the fixing plates are both fixed to the upper end of the support frame.

Further, the two suspension plates are respectively fixed on the beam of the support frame through two steel pipes in a figure-eight shape.

The beneficial effects of adopting the above technical scheme are as follows: the entire support frame can be stably fixed on the tractor, and the moving process is stable.

The beneficial effects of the present invention are as follows: the present invention is used in the process of separating finished products and impurities in the mixture, realizes an automatic separation process, saves labor costs and increases work efficiency. It is convenient to remove impurities carried on the finished product, to ensure that the least amount of impurities can be attached to the finished product, so that the surface of the finished product is clean enough, and the workload of post-cleaning is reduced. The finished product and impurities are thrown up by the separation screen, so that the adhering mixture is beaten and broken, and the function of throwing impurities and separation of the separation screen is realized.

Description of drawings

FIG. 1 is a structural diagram of a separation device.

Figure 2 is a structural diagram of a separation screen.

Among them, 1. Reducer, 2. Beam, 3. Steel pipe, 4. Driven pulley, 5. Output shaft, 6. Drive connecting rod, 7. First connecting rod, 8. Support frame, 9. Fixed connecting rod , 10, second connecting rod, 11, vibrating side plate, 12, hanging teeth, 13, suspension plate, 14, shovel teeth, 15, shovel plate, 16, driving pulley, 17, separating screen, 18, vibrating intermediate shaft, 19, crank, 20, shovel plate connecting plate, 21, smooth transition plate.

Detailed ways

The specific embodiments of the present invention are described below to facilitate those skilled in the art to understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Such changes are obvious within the spirit and scope of the present invention as defined and determined by the appended claims, and all inventions and creations utilizing the inventive concept are within the scope of protection.

Example 1

As shown in Figures 1 and 2, a separation device includes a separation screen 17 that throws the mixture backward through vibration; one side of the separation screen 17 is provided with a digging mechanism for conveying the mixture to the separation screen 17; the digging mechanism and the Between the separation screens 17, there is a space that is convenient for the separation screen 17 to vibrate; the excavation mechanism is provided with a number of hanging teeth 12 that cooperate with the separation screen 17. When the separation screen 17 is vibrating, the edge of the separation screen 17 is between the plurality of hanging teeth 12. activities in the interval.

This embodiment is used to separate mixtures of different sizes or materials. The mixture is excavated from the ground by the excavating mechanism and transported to the separation screen 17. Through the vibration of the separation screen 17, the mixture is subjected to impact and collision on the separation screen 17, so that the The mixtures are separated to avoid sticking together, the separated large-sized objects are transported to the next process along the separation screen 17, and the small-sized objects fall from the gaps of the separation screen 17 to realize the separation of the mixture. A number of hanging teeth 12 fill the gap between the excavating mechanism and the separation screen 17 to prevent objects from running out of the gap. Even during the vibration of the separation screen 17, the plurality of hanging teeth 12 can well prevent objects from entering the gap without affecting the separation. The sieve 17 is vibrated.

This embodiment can be installed on the vibration mechanism of an excavator for harvesting rhizomes or fruits. The digging mechanism digs out the rhizomes or fruits underground, and then transports them to the separation screen 17. The separation screen 17 vibrates up and down, so that the roots or fruits are The attached soil quickly falls off, and the fallen soil falls to the ground from the gap of the separation screen 17, and during the vibration process, the large pieces of soil can also be dispersed with the vibration and fall from the gap, avoiding the rhizomes or rhizomes. Fruit is harvested.

In the implementation of this embodiment, the separation screen 17 is inclined, and the excavation mechanism includes a shovel plate 15 spliced on one side of the bottom of the separation screen 17 . A plurality of shovel teeth 14 are evenly arranged on one side of the shovel plate 15 , and a plurality of hanging teeth 12 are arranged on the other side of the shovel plate 15 . The mixture enters the separation screen 17 from the bottom of the separation screen 17, and is transported out from the upper end of the separation screen 17, which increases the residence time of the mixture on the separation screen 17 and increases the separation effect. In this embodiment, the mixture is shoveled onto the separation screen 17 through the shovel plate 15 and the shovel teeth 14, and the hanging teeth 12 and the separation screen 17 are seamlessly connected.

The shovel plate 15 is a folded structure protruding to the outside of the separation screen 17 . Several shovel teeth 14 are arranged in a protruding shape on the shovel plate 15 ; The hanging teeth 12 have a U-shaped structure, and the openings of the hanging teeth 12 face the separation screen 17; the hanging teeth 12 form a sufficient gap between the shovel plate 15 and the separation screen 17, and have high structural strength.

This embodiment can also be applied to the harvest of Angelica rhizomes. The Angelica rhizomes planted in the ground are shoveled on the separation screen 17 through the shovel plate 15, and the Angelica Roots and the soil are separated through the separation screen 17 to realize the harvest of Angelica Roots.

This embodiment can also be applied to the separation process of sediment and large impurities, the fine sediment falls from the gap, and the large impurities are separated along the separation screen 17, and accompanied by the vibration of the separation screen 17, The agglomerated sediment can also be broken well, which promotes the separation of sediment and impurities.

Example 2

As shown in Figures 1 and 2, a separation device includes a vibrating separation screen 17; one side of the separation screen 17 is provided with an excavation mechanism for conveying the mixture to the separation screen 17; between the excavation mechanism and the separation screen 17 A space is provided to facilitate the vibration of the separation screen 17; the excavation mechanism is provided with a number of hanging teeth 12 that cooperate with the separation screen 17. When the separation screen 17 is vibrating, the edge of the separation screen 17 moves in the gap between the plurality of hanging teeth 12.

This embodiment is used to separate mixtures of different sizes or materials. The mixture is excavated from the ground by the excavating mechanism and transported to the separation screen 17. Through the vibration of the separation screen 17, the mixture is subjected to impact and collision on the separation screen 17, so that the The mixtures are separated to avoid sticking together, the separated large-sized objects are transported to the next process along the separation screen 17, and the small-sized objects fall from the gaps of the separation screen 17 to realize the separation of the mixture. A number of hanging teeth 12 fill the gap between the excavating mechanism and the separation screen 17 to prevent objects from running out of the gap. Even during the vibration of the separation screen 17, the plurality of hanging teeth 12 can well prevent objects from entering the gap without affecting the separation. The sieve 17 is vibrated.

This embodiment can be installed on the vibration mechanism of an excavator for harvesting rhizomes or fruits. The digging mechanism digs out the rhizomes or fruits underground, and then transports them to the separation screen 17. The separation screen 17 vibrates up and down, so that the roots or fruits are The attached soil quickly falls off, and the fallen soil falls to the ground from the gap of the separation screen 17, and during the vibration process, the large pieces of soil can also be dispersed with the vibration and fall from the gap, avoiding the rhizomes or rhizomes. Fruit is harvested.

In the implementation of this embodiment, the separation screen 17 is inclined, and the excavation mechanism includes a shovel plate 15 spliced on one side of the bottom of the separation screen 17 . A plurality of shovel teeth 14 are evenly arranged on one side of the shovel plate 15 , and a plurality of hanging teeth 12 are arranged on the other side of the shovel plate 15 . The mixture enters the separation screen 17 from the lower end of the separation screen 17, and is transported out from the upper end of the separation screen 17, which increases the residence time of the mixture on the separation screen 17 and increases the separation effect. In this embodiment, the mixture is shoveled onto the separation screen 17 through the shovel plate 15 and the shovel teeth 14, and the hanging teeth 12 and the separation screen 17 are seamlessly connected.

The shovel plate 15 is a folded structure protruding to the outside of the separation screen 17 . Several shovel teeth 14 are arranged in a protruding shape on the shovel plate 15 ; The hanging teeth 12 have a U-shaped structure, and the opening of the hanging teeth 12 faces the separation screen 17; the hanging teeth 12 form a sufficient gap between the shovel plate 15 and the separation screen 17, and have high structural strength.

This embodiment can also be applied to the harvest of Angelica rhizomes. The Angelica rhizomes planted in the ground are shoveled on the separation screen 17 through the shovel plate 15, and the Angelica Roots and the soil are separated through the separation screen 17 to realize the harvest of Angelica Roots.

This embodiment can also be applied to the separation process of sediment and large impurities, the fine sediment falls from the gap, and the large impurities are separated along the separation screen 17, and accompanied by the vibration of the separation screen 17, The agglomerated sediment can also be broken well, which promotes the separation of sediment and impurities.

In this embodiment, the separation screen 17 is arranged between two parallel support frames 8, the upper ends of the two support frames 8 are connected by a plurality of beams 2, and the two sides of the separation screen 17 are respectively arranged on the two support frames 8 by the driving mechanism , the two sides of the separation screen 17 are connected with the drive mechanism through the vibrating side plate 11 .

The driving mechanism includes a reduction box 1 that is connected to the rear power output shaft of the tractor. The output shafts 5 on both sides of the reduction box 1 are provided with driving pulleys 16, and the driving pulleys 16 are connected to the output shaft 5 through the transmission mechanism. 5 is arranged on the two support frames 8 through the bearing seat, and the two ends of the output shaft 5 are respectively connected with the vibration side plate 11 through the crank transmission mechanism. This embodiment can be installed on a tractor, and the rear power output shaft of the tractor is used to drive the separation screen 17 to vibrate, which is suitable for various mixture separation scenarios. At the same time, it is driven by the tractor to achieve flow separation.

Example 3

The difference between this embodiment and Embodiment 2 is:

This embodiment is based on Embodiment 2, and limits the specific structure of the crank transmission mechanism. The crank transmission mechanism includes cranks 19 arranged at both ends of the output shaft 5. The cranks 19 are hinged with a driving connecting rod 6, and the driving connecting rod 6 and the The end of the driven link is hinged; the driven link is hinged on the support frame 8 , and the hinge points between the driving link 6 and the driven link are all set on the vibration side plate 11 .

In this embodiment, the driving link 6 swings, and the driving link 6 drives the driven link to swing, which in turn causes the side plate to vibrate, and drives the separation screen 17 to vibrate. Under the pushing action of the mixture, the shoveled mixture enters the separation screen 17, and the vibration of the separation screen 17 will throw the mixture in the backward conveying direction. The mixture passes through the separating sieve 17 and becomes undersize to complete the separation.

In this embodiment, the vibration side plates 11 on both sides are connected by a vibration intermediate shaft 18 , and the hinge point between the driving link 6 and the driven link is set at the end of the vibration intermediate shaft 18 . The intermediate shaft connects the two vibrating side plates 11 to ensure the synchronization of the vibrating process, so that the vibrating structure of the separation screen 17 is stable.

In this embodiment, the driven link includes a first link 7 and a second link 10 that are parallel to each other, the drive link 6 is hinged with the first link 7, and one end of the first link 7 and the second link 10 Both are hinged on the support frame 8 , the other ends of the first link 7 and the second link 10 are hinged on the vibration side plate 11 , and the first link 7 and the second link 10 are connected by the fixed link 9 .

In the process of driving the vibration side plate 11 to move up and down, the first link 7 and the second link 10 can further increase the stability of the vibration side plate 11 .

In this embodiment, the output shafts 5 on both sides of the reduction box 1 are provided with driving pulleys 16, and the output shaft 5 is provided with driven pulleys 4 that cooperate with the driving pulleys 16 on both sides. The moving pulley 4 is connected by a belt, and the belts on both sides of the reduction box 1 are symmetrical about the input axis of the reduction box 1 . The two belts are simultaneously driven to rotate by one reduction box 1, and the output shaft 5 is provided with rotational power at the same time, with sufficient power, high simultaneity, and uniform force.

In the present embodiment, a gap is set between the vibrating side plates 11 on both sides and the support frame 8 , the vibrating side plates 11 are fixed on both sides of the separation screen 17 , and the sides of the vibrating side plate 11 are provided to fill the vibrating side plate 11 and the supporting frame The front baffle of the gap between 8, the front baffle and the support frame 8 are movably connected. A smooth transition plate 21 is arranged between the front baffle plate and the vibrating side plate 11 to facilitate the conveying of the mixture. In the process of conveying the mixture, it is ensured that the separated objects can be conveyed smoothly to avoid leakage from the gap of the support frame 8 .

Example 4

As shown in Figures 1 and 2, a separation device includes a vibrating separation screen 17; one side of the separation screen 17 is provided with an excavation mechanism for conveying the mixture to the separation screen 17; between the excavation mechanism and the separation screen 17 A space is provided to facilitate the vibration of the separation screen 17; the excavation mechanism is provided with a number of hanging teeth 12 that cooperate with the separation screen 17. When the separation screen 17 is vibrating, the edge of the separation screen 17 moves in the gap between the plurality of hanging teeth 12.

This embodiment is used to separate mixtures of different sizes or materials. The mixture is excavated from the ground by the excavating mechanism and transported to the separation screen 17. Through the vibration of the separation screen 17, the mixture is subjected to impact and collision on the separation screen 17, so that the The mixtures are separated to avoid sticking together, the separated large-sized objects are transported to the next process along the separation screen 17, and the small-sized objects fall from the gaps of the separation screen 17 to realize the separation of the mixture. A number of hanging teeth 12 fill the gap between the excavating mechanism and the separation screen 17 to prevent objects from running out of the gap. Even during the vibration of the separation screen 17, the plurality of hanging teeth 12 can well prevent objects from entering the gap without affecting the separation. The sieve 17 is vibrated.

This embodiment can be installed on the vibration mechanism of an excavator for harvesting rhizomes or fruits. The digging mechanism digs out the rhizomes or fruits underground, and then transports them to the separation screen 17. The separation screen 17 vibrates up and down, so that the roots or fruits are The attached soil quickly falls off, and the fallen soil falls to the ground from the gap of the separation screen 17, and during the vibration process, the large pieces of soil can also be dispersed with the vibration and fall from the gap, avoiding the rhizomes or rhizomes. Fruit is harvested.

In the implementation of this embodiment, the separation screen 17 is inclined, and the excavation mechanism includes a shovel plate 15 spliced on one side of the bottom of the separation screen 17 . A plurality of shovel teeth 14 are evenly arranged on one side of the shovel plate 15 , and a plurality of hanging teeth 12 are arranged on the other side of the shovel plate 15 . The mixture enters the separation screen 17 from the lower end of the separation screen 17, and is transported out from the upper end of the separation screen 17, which increases the residence time of the mixture on the separation screen 17 and increases the separation effect. In this embodiment, the mixture is shoveled onto the separation screen 17 through the shovel plate 15 and the shovel teeth 14, and the hanging teeth 12 and the separation screen 17 are seamlessly connected.

The shovel plate 15 is a folded structure protruding to the outside of the separation screen 17 . Several shovel teeth 14 are arranged in a protruding shape on the shovel plate 15 ; The hanging teeth 12 have a U-shaped structure, and the opening of the hanging teeth 12 faces the separation screen 17; the hanging teeth 12 form a sufficient gap between the shovel plate 15 and the separation screen 17, and have high structural strength.

This embodiment can also be applied to the harvest of Angelica rhizomes. The Angelica rhizomes planted in the ground are shoveled on the separation screen 17 through the shovel plate 15, and the Angelica Roots and the soil are separated through the separation screen 17 to realize the harvest of Angelica Roots.

This embodiment can also be applied to the separation process of sediment and large impurities, the fine sediment falls from the gap, and the large impurities are separated along the separation screen 17, and accompanied by the vibration of the separation screen 17, The agglomerated sediment can also be broken well, which promotes the separation of sediment and impurities.

In this embodiment, the separation screen 17 is arranged between two parallel support frames 8, the upper ends of the two support frames 8 are connected by a plurality of beams 2, and the two sides of the separation screen 17 are respectively arranged on the two support frames 8 by the driving mechanism On the upper side, both sides of the separation screen 17 are connected with the driving mechanism through the vibrating side plate 11 .

The driving mechanism includes a reduction box 1 that is connected to the rear PTO shaft of the tractor in a transmission connection. The output shafts 5 on both sides of the reduction box 1 are provided with driving pulleys 16. The driving pulley 16 is connected to the output shaft through the transmission mechanism. 5. Transmission connection, the output shaft 5 is arranged on the two support frames 8 through the bearing seat, and the two ends of the output shaft 5 are respectively connected with the vibration side plate 11 through the crank transmission mechanism.

In this embodiment, the upper end of the support frame 8 is provided with a connecting frame connected to the tractor. The connecting frame includes two hanging plates 13 in a figure-eight shape. The lower ends of the two hanging plates 13 are provided with two vertical fixing plates. 13 are respectively fixed on the beam 2 of the support frame 8 through two splayed steel pipes 3 . Make sure that the entire support frame 8 can be stably fixed on the tractor, and the moving process is stable.

The invention is used in the process of separating finished products and impurities in the mixture, realizes the automatic separation process, saves labor cost and increases work efficiency. It is convenient to remove impurities carried on the finished product, to ensure that the least amount of impurities can be attached to the finished product, so that the surface of the finished product is clean enough, and the workload of post-cleaning is reduced. The finished product and impurities are thrown up by the separation screen 17, so that the adhering mixture is beaten and broken, and the separation screen 17 can realize the function of throwing impurities and separating.

Claims (10)

1. A separating apparatus comprising a separating screen for throwing the mixture rearwardly by vibration;

one side of the separation screen is provided with an excavating mechanism for conveying the mixture onto the separation screen; a gap which is convenient for the separation screen to vibrate is arranged between the excavating mechanism and the separation screen;

the digging mechanism is provided with a plurality of hanging teeth matched with the separating screen, and when the separating screen vibrates, the edge of the separating screen moves in the gap between the hanging teeth.

2. The separating device according to claim 1, wherein the separating screen is arranged obliquely, the excavating mechanism comprises a shovel plate spliced on one side of the bottom of the separating screen, a plurality of shovel teeth are uniformly arranged on one side of the shovel plate, and a plurality of hanging teeth are arranged on the other side of the shovel plate; the shovel plate is of a folded structure protruding towards the outer side of the separation screen, and a plurality of shovel teeth are arranged on the shovel plate in a protruding shape; the hanging teeth are of a U-shaped structure, and the openings of the hanging teeth face the separating screen.

3. The separation device of claim 1, wherein the separation screen is arranged between two parallel support frames, the upper ends of the two support frames are connected through a plurality of cross beams, two sides of the separation screen are respectively arranged on the two support frames through a driving mechanism, and two sides of the separation screen are connected with the driving mechanism through vibrating side plates.

4. The separation device according to claim 3, wherein the driving mechanism comprises a reduction gearbox in transmission connection with a rear power output shaft of the tractor, driving belt wheels are arranged on output shafts on two sides of the reduction gearbox, the driving belt wheels are in transmission connection with the output shafts through a transmission mechanism, the output shafts are arranged on the two support frames through bearing seats, and two ends of each output shaft are respectively connected with the vibration side plates through crank transmission mechanisms.

5. The separating device of claim 4, wherein the crank transmission mechanism comprises cranks arranged at two ends of the output shaft, a driving connecting rod is hinged on each crank, and the driving connecting rod is hinged with the end part of the driven connecting rod; the driven connecting rod is hinged to the supporting frame and comprises a first connecting rod and a second connecting rod which are parallel to each other, the vibrating side plates on the two sides are connected through a vibrating middle shaft, a hinged point of the first connecting rod and the driving connecting rod is arranged at the end part of the vibrating middle shaft, and one end of each of the first connecting rod and the second connecting rod is hinged to the supporting frame; the other end of the second connecting rod is hinged to the vibrating side plate, and the first connecting rod is connected with the second connecting rod through the fixed connecting rod.

6. The separating device as claimed in claim 3, wherein the output shaft on both sides of the reduction box is provided with a driving pulley, the output shaft is provided with a driven pulley matched with the driving pulleys on both sides, the driving pulley and the driven pulley are connected through a belt, and the belt on both sides of the reduction box is symmetrical about the input shaft of the reduction box.

7. The separating device as claimed in claim 3, wherein a gap is provided between the vibrating side plate and the supporting frame at both sides, the vibrating side plate is fixed at both sides of the separating screen, a front baffle plate for filling the gap between the vibrating side plate and the supporting frame is provided at the side surface of the vibrating side plate, and the front baffle plate is movably connected with the supporting frame; and a smooth transition plate which is convenient for conveying the mixture is arranged between the front baffle and the vibration side plate.

8. The separation device of claim 1, wherein the upper end of the support frame is provided with a connection frame connected with a tractor.

9. The separating device as claimed in claim 1, wherein the connecting frame comprises two hanging plates in a splayed shape, two vertical fixing plates are arranged at the lower ends of the two hanging plates, and the upper ends of the hanging plates and the fixing plates are fixed at the upper end of the supporting frame.

10. The separation device of claim 9, wherein the two suspension plates are fixed to the cross beam of the support frame by two steel tubes in a splayed shape.

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