A mobile rice-rough separator with adjustable shaking amplitude

Abstract

The present invention discloses a mobile grain-rough separator with adjustable shaking amplitude, which relates to the technical field of grain machinery, and comprises a bracket, on which two symmetrically installed first adjusting devices are installed, on which a shaking screen is installed, and on which a driving box is installed, in which a rotating shaft is installed, on which a plurality of eccentric wheels are installed, and the eccentric wheels are connected to the shaking screen through a shaking amplitude adjusting device, and the shaking amplitude adjusting device comprises a pin shaft, on which a second connecting rod, a third connecting rod and a telescopic member are rotatably installed. When the present invention is used, the shaking amplitude and angle can be adjusted by the shaking amplitude adjusting device according to the specific gravity and particle size of the grain-rough mixture, which greatly improves the applicability of the present invention and effectively reduces the difficulty and investment of the screening and separation operation of a single batch of grain-rough mixture.

Description

Technical Field

[0001] The invention relates to the technical field of grain machinery, in particular to a mobile grain-rough separator with adjustable shaking amplitude. Background Art

[0002] The rice-brown separation screen is an important grain processing equipment, which is mainly used to effectively separate the brown rice and husk in the rice for subsequent processing and utilization. The rice-brown separation screen mainly uses the physical property differences of the specific gravity, particle size, friction coefficient, etc. of the rice and brown rice to separate. Under the action of the separation plate with horizontal reciprocating shaking or vibration, the rice-brown mixture gradually separates automatically. The brown rice with a large specific gravity and a small particle size will sink. Through the action of the bidirectional inclined convex separation plate or screen, the brown rice moves obliquely upward and flows out from the separation plate or screen. The rice with a small specific gravity and a large particle size floats on the upper layer of the brown rice, slides obliquely downward to the lower outlet of the separation, and then flows out, so as to achieve the purpose of separation by quality.

[0003] However, the grains in the current grain-rough mixture are of different sizes, and the same specific gravity and particle size are also different. However, the angle of the current grain-rough separation screen cannot be adjusted, and the shaking amplitude is also not adjustable, and it cannot adapt to multiple batches of grain-rough mixtures with different specific gravities and particle sizes. Summary of the invention

[0004] In order to solve the problem mentioned in the background technology that the current grain-rough separation screen cannot adapt to multiple batches of grain-rough mixtures with different specific gravities and particle sizes, the purpose of the present invention is to provide a mobile grain-rough separator with adjustable shaking amplitude.

[0005] To achieve the above object, the present invention provides the following technical solution: a mobile rice-rough separator with adjustable shaking amplitude, comprising a bracket, on which two symmetrically installed first adjustment devices are mounted, on which a shaking screen is mounted, and on which a driving box is mounted, the driving box is located between the two shaking screens, a rotating shaft is mounted in the driving box, on which a plurality of eccentric wheels are mounted, and the eccentric wheels are connected to the shaking screens through the shaking amplitude adjustment device;

[0006] The shaking amplitude adjustment device includes a pin shaft, on which a second connecting rod, a third connecting rod and a telescopic member are rotatably mounted. One end of the second connecting rod is hinged to one side of the shaking screen, and the third connecting rod is sleeved on the eccentric wheel and rollingly cooperates with it. A support plate is provided in the drive box, and one end of the telescopic member is hinged to the support plate.

[0007] Preferably, the first adjustment device comprises a support frame, the support frame is hinged on the bracket, the support frame is arranged at an angle with the horizontal plane, a third support rod is plugged and installed at one end of the support frame, the third support rod is slidably matched with the support frame, an adjustment bolt is hingedly installed at one end of the third support rod, the adjustment bolt passes through the bracket and slidably matches therewith, and a plurality of locking bolts are threadedly connected to the adjustment bolt;

[0008] Preferably, a slide rail is provided on the support plate, and a lead screw is installed in the drive box. The lead screw is arranged parallel to the slide rail. A servo motor is installed on one side of the drive box. The servo motor drives the lead screw. A nut seat is installed on the lead screw, and one end of the telescopic member is hinged on the nut seat.

[0009] Two first support rods and two second support rods are cooperatively mounted on the support frame, and the upper ends of the first support rods and the second support rods are hingedly mounted below the shaking screen.

[0010] Preferably, the shaking screen includes a shaking box, which is arranged at an angle, and an observation box is installed at one end of the shaking box. A plurality of shaking screen plates are installed in the shaking box and the observation box, and the distance between every two adjacent shaking screen plates is equal.

[0011] Preferably, a conveying trough is installed above the observation box, and a material balancing plate is installed in the conveying trough;

[0012] The other end of the shaking box is matched with a discharge box, and the discharge box is provided with a first discharge port, a second discharge port and a third discharge port.

[0013] Preferably, a material distribution trough is installed on the bracket, and a first discharge pipe, a second discharge pipe and a third discharge trough are provided on the material distribution trough, and the first discharge pipe, the second discharge pipe and the third discharge trough are respectively arranged in one-to-one correspondence with the first discharge port, the second discharge port and the third discharge port.

[0014] Preferably, an elevator is installed on one side of the bracket, a feed hopper is installed on one side of the elevator, and a distribution pipe is installed at the discharge port of the elevator.

[0015] Preferably, a distribution hopper is mounted on one side of the bracket, and two discharge ports are arranged on the lower side of the distribution hopper, and the two discharge ports are arranged corresponding to the conveying trough.

[0016] Preferably, the second discharge pipe is connected with a screening trough, a filter plate is provided in the screening trough, a second discharge trough and a third discharge trough are installed at one end of the screening trough, and one end of the second discharge trough is connected with a feed hopper.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The telescopic part of the present invention can adopt a buffer hydraulic cylinder. When the machine is running, the buffer hydraulic cylinder can undergo a certain amount of telescopic deformation, thereby effectively changing the distance of the single displacement of the shaking screen, so that the present invention can cope with the separation operation of grains with different specific gravities. The reciprocating telescopic amplitude of the buffer hydraulic cylinder can be changed by controlling the pressure of the hydraulic oil inside it, thereby greatly improving the applicability, and the hydraulic cylinder can effectively buffer the impact force, ensuring that the equipment runs more smoothly and with lower noise. In addition, the present invention also provides another equally efficient telescopic support solution, that is, using an electric push rod with a self-locking function as a rigid telescopic support. This choice stands out for its high-precision control ability, which can achieve precise control of the shaking amplitude of the shaking box, thereby further ensuring that the quality of the screened products is purer, meeting higher standards of production requirements, and bringing unprecedented flexibility and precision to the grain separation operation.

[0019] 2. When the present invention is in use, the shaking amplitude can be adjusted according to the specific gravity and particle size of the grain-rough mixture through the shaking amplitude adjusting device. By adjusting the length of the telescopic part, we can accurately change the position of the pin shaft. As shown in the figure, when the telescopic part is extended, the pin shaft will rise accordingly, causing the shaking box to shift to the left, and the offset angle will decrease accordingly. Such a design enables the present scheme to better adapt to the screening needs of smaller grain particles. On the contrary, when the telescopic part is contracted, the pin shaft drops, and the shaking box shifts to the right, and the offset angle increases, which is more suitable for the screening and separation operations of larger grain particles. Through the above operation, the applicability of the present invention can be greatly improved, and the difficulty and investment of the screening and separation operations of a single batch of grain-rough mixture can be effectively reduced.

[0020] 3. The first adjusting device of the present invention can lift a fixed hinge point at the bottom of the planar four-bar linkage supporting the shaking screen, thereby raising the side of the shaking screen close to the motor. Under the pulling action of the first connecting rod, the shaking screen is prompted to tilt toward the side of the motor. On the contrary, the buffer hydraulic cylinder in the first adjusting device contracts, which can make the shaking screen tilt toward the side away from the motor. Therefore, the present invention can adapt to grain-rough mixtures of different specific gravities and particle sizes, thereby improving adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The basic structural diagram of a mobile rough rice separator with adjustable shaking amplitude according to the present invention.

[0022] Figure 2 For the present invention Figure 1 Side view of.

[0023] Figure 3 It is a schematic diagram of the internal structure of the screening tank of the present invention.

[0024] Figure 4 It is a schematic diagram of the matching relationship between the sloshing box and the material distribution trough of the present invention.

[0025] Figure 5 For the present invention Figure 1 Another perspective of the picture.

[0026] Figure 6 For the present invention Figure 5 main view.

[0027] Figure 7 It is a schematic diagram of the installation position of the eccentric wheel of the present invention.

[0028] Figure 8 It is a schematic diagram of the matching relationship between the support frame, the first connecting rod and the second connecting rod of the present invention.

[0029] Fig. 9 It is a schematic diagram of the positions of points A, B, C, and D of the present invention.

[0030] Fig.10 This is a schematic diagram of the installation position of the first connecting rod of the present invention.

[0031] Fig.11 For the present invention Fig.10 Schematic diagram of the connection relationship between the eccentric wheel and the first connecting rod.

[0032] Fig.12 For the present invention Fig.11 Schematic diagram of the structure after the eccentric wheel rotates 90 degrees clockwise.

[0033] Fig.13 For the present invention Fig.11 Schematic diagram of the structure after the eccentric wheel rotates 180 degrees clockwise.

[0034] Fig.14 It is a schematic diagram of the installation position of the telescopic member of the present invention.

[0035] Fig.15 For the present invention Fig.14 Partial view of a top view.

[0036] Fig.16 For the present invention Fig.14 Schematic diagram of the positional relationship between the eccentric wheel and telescopic parts.

[0037] Fig.17 For the present invention Fig.14 Schematic diagram of the structure after the eccentric wheel rotates 90 degrees clockwise.

[0038] Fig.18 For the present invention Fig.14 Schematic diagram of the structure after the eccentric wheel rotates 180 degrees clockwise.

[0039] Fig.19 For the present invention Fig.19 Schematic diagram of the structure when the telescopic part is contracted.

[0040] Fig. 20 It is the installation position of the hydraulic cylinder of the present invention.

[0041] Fig.21 Another structural diagram of the present invention is shown in FIG.

[0042] Fig. 22 For the present invention Fig. 22 Partial view of a top view.

[0043] Fig.23 It is a schematic diagram of the connection relationship between the eccentric wheel and the rotating shaft of the present invention.

[0044] Fig.24 This is a distribution diagram of the products obtained after screening by the rough rice separator of the present invention.

[0045] In the figure: 101, first bracket; 102, second bracket; 103, third bracket; 104, fourth bracket; 105, universal wheel; 201, elevator; 202, feed hopper; 203, distribution hopper; 204, conveying trough; 205, material distribution plate; 206, observation box; 207, distribution pipe; 301, shaking box; 302, shaking screen plate; 303, discharge box; 304, first discharge port; 305, second discharge port; 306, third discharge port; 401, distribution trough; 402, first discharge pipe; 403, second discharge pipe; 404, third discharge pipe; 405, first discharge trough; 501, screening trough; 502, second discharging trough; 503, third discharging trough; 504, screening plate; 601, support frame; 602, adjusting bolt; 603, first support rod; 604, second support rod; 606, third support rod; 607, hydraulic cylinder; 701, drive box; 702, motor; 703, rotating shaft; 704, eccentric wheel; 705, first connecting rod; 706, mounting seat; 707, second connecting rod; 708, third connecting rod; 709, support plate; 710, telescopic member; 711, buffer seat; 712, pin shaft; 714, servo motor; 715, slide rail; 716, lead screw; 717, nut seat. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, this embodiment provides a mobile grain-rough separator with adjustable shaking amplitude, including a bracket, the bracket including a first bracket 101, a second bracket 102 is fixedly mounted on the first bracket 101, a third bracket 103 is fixedly mounted on the first bracket 101, and a plurality of universal wheels 105 are mounted on the lower side of the first bracket 101.

[0048] A hoist 201 is installed on one side of the first bracket 101, and a feed hopper 202 is installed on one side of the hoist 201. A distribution hopper 203 is fixedly installed on one side of the third bracket 103. The distribution hopper 203 has a feed port on the upper side and two oppositely arranged feed ports on the lower side. The two feed ports are respectively arranged in cooperation with two shaking screens. When in use, the grain to be screened only needs to be directly put into the feed hopper 202, and the grain to be screened is lifted to a suitable height by the hoist 201.

[0049] The shaking screen includes a shaking box 301, in which a plurality of shaking screen plates 302 are installed. The shaking screen plates 302 are in a zigzag shape and are arranged in an array so that the distance between two adjacent shaking screen plates 302 is equal. A distribution pipe 207 is provided at the discharge port of the elevator 201. The distribution pipe 207 has two discharge ports, which can better adapt to the distribution hopper 203.

[0050] Before the material to be screened enters the shaking box 301, the material to be screened can be separated into several parts by the vibrating screen plates arranged in an array, so as to facilitate shaking screening. A material leveling plate 205 is installed in the conveying trough 204. The material leveling plate 205 can level the material to be screened in the conveying trough 204, so that the material to be screened falling into the screening box is evenly distributed between two adjacent vibrating screen plates, thereby effectively preventing the food to be screened from being blocked between two adjacent vibrating screen plates.

[0051] Reference Fig. 9 and Fig.10 The shaking box 301 is tilted, and the four vertices A, B, C, and D on the upper side of the shaking box 301 (refer to Fig. 9 ), point A in the figure is the highest point, D is the lowest point, and the four points A, B, C, and D are not in the same horizontal plane, so that the shaking box 301 is tilted from point A to point D.

[0052] In this way, when the shaking box 301 shakes, the material to be screened will fall on point A and gradually move to point D due to gravity. Under the corresponding shaking, the heavier material in the material to be screened will gradually move to point A, and the lighter material in the material to be screened will gradually move to point B. Finally, the material distribution between point D and point B will present the unshelled rice m1, the mixture of rice and brown rice m2 and the brown rice m3 according to their own weight (refer to Fig.24 ).

[0053] Each shaking screen has a material distribution trough 401 for receiving various materials screened by the shaking screen. The bottom end of the shaking box 301 is equipped with a discharge box 303, and the discharge box 303 is provided with three discharge ports. Figure 4 The first discharge port 304 is located at the highest position and can discharge the screened completely hulled rice m1. The third discharge port 306 is located at the lowest position and can discharge the screened brown rice m3. The second discharge port 305 is located in the middle and can discharge the screened mixture of rice and brown rice m2.

[0054] Reference Figure 4 The material distribution trough 401 is sleeved on the bottom of the discharge box 303, and three corresponding discharge pipes are opened on the material distribution trough 401. The first discharge pipe 402 is corresponding to the first discharge port 304, the second discharge pipe 403 is corresponding to the second discharge port 305, and the third discharge pipe 404 is corresponding to the third discharge port 306.

[0055] The separated completely husked rice m1 passes through the corresponding first discharge port 304 and the first discharge pipe 402, and finally falls into the first discharge slot 405 on the first bracket 101; the separated brown rice m3 is discharged through the corresponding third discharge port 306 and the third discharge pipe 404; the separated mixture of rice and brown rice m2 is screened through the screening slot 501 in the first bracket 101 (refer to Figure 3 ), screening and filtering operations are performed through the screening plate 504, the brown rice is screened and separated, and the brown rice is poured into the feed hopper 202 again through the second discharging chute 502, and the separated dust or contaminated broken grains are discharged through the third discharging chute 503.

[0056] The above method can effectively prevent dust or small grain particles in the mixture m2 of rice and brown rice from entering the shaking screen again to contaminate the grain to be screened, thereby effectively reducing the load of the shaking screen during multiple operations and the probability of damage to the shaking screen.

[0057] When in use, the completely hulled rice m1 is generally used or made into various products, the brown rice m3 is pounded by a rice pounding machine and screened again, and the mixture m2 of rice and brown rice is screened and separated again. The current recovery operation of the mixture m2 of rice and brown rice is to directly put the mixture m2 of rice and brown rice into the feed hopper 202, and separate it again by a rice-brown separator. However, this will cause the mixture m2 of rice and brown rice to be mixed into the material to be screened, making the screening operation of the shaking box 301 more complicated, thereby increasing the probability of failure of the shaking screen.

[0058] An observation box 206 is provided on one side of the shaking box 301 , and a plurality of observation windows are provided on the observation box 206 . The shaking screen plate 302 is bent, and one end of the shaking screen plate 302 is located in the observation box 206 , and the other end of the shaking screen plate 302 is located in the shaking box 301 .

[0059] Reference Figure 8 , a first adjusting device is provided on the second bracket 102, the first adjusting device includes a support frame 601, the support frame 601 is hingedly mounted on the second bracket 102, a third support rod 606 is plugged and mounted on one side of the support frame 601, the third support rod 606 is slidably matched with the support frame 601, an adjusting bolt 602 is hingedly mounted on one end of the third support rod 606, the upper end of the adjusting bolt 602 passes through the second bracket 102, and two locking nuts are threadedly matched on the adjusting bolt 602, and the length of the adjusting bolt 602 passing through the second bracket 102 is adjusted by the two locking nuts, and the two locking nuts can fix the adjusting bolt 602;

[0060] Two first support rods 603 are hingedly mounted on the support frame 601, and the upper ends of the first support rods 603 are hingedly mounted on the lower side of the shaking box 301. Two second support rods 604 are hingedly mounted on the support frame 601, and the upper ends of the second support rods 604 are hingedly mounted on the lower side of the shaking box 301. In this embodiment, the two first support rods 603 and the second support rods 604 form four support points on the lower side of the vibration box.

[0061] A four-bar linkage is formed between the support frame 601, the first support rod 603, the second support rod 604 and the shaking box 301. A driving box 701 is fixedly mounted on the second bracket 102, and the interior of the driving box 701 is hollow.

[0062] Reference Figure 10-13A rotating shaft 703 is installed in the driving box 701, and a plurality of eccentric wheels 704 are fixedly installed on the rotating shaft 703. A mounting seat 706 is fixedly installed on the shaking box 301, and a rotating rod is installed on the mounting seat 706. The eccentric wheel 704 and the rotating rod are connected by a first connecting rod 705, one end of the first connecting rod 705 is hinged on the rotating rod, and the other end of the first connecting rod 705 is sleeved on the eccentric wheel 704 and rolls with it. A motor 702 is fixedly installed in the driving box 701, and the motor 702 is connected to the rotating shaft 703 through corresponding belts and pulley drives. A fourth bracket 104 is provided between the driving box 701 and the distribution hopper 203, and the fourth bracket 104 can effectively absorb the impact force of grain brought by the elevator 201.

[0063] In this embodiment, when the rotating shaft 703 rotates, the eccentric wheel 704 also rotates in the first connecting rod 705, so that the first connecting rod 705 obtains a reciprocating push-pull force when the rotating shaft 703 rotates, thereby causing the first connecting rod 705 to shake the shaking box 301, and the first connecting rod 705 can support the shaking box 301 supported by the four-bar mechanism to prevent the shaking box 301 from collapsing.

[0064] When this embodiment is in use, the function of controlling the shaking amplitude can be achieved by replacing different eccentric wheels 704. The larger the distance between the axis of the eccentric wheel 704 and the axis of the rotating shaft 703, the greater the shaking amplitude of the shaking box 301 during operation.

[0065] In another embodiment, please refer to Fig.14 and Fig.15 This solution does not continue to use the first connecting rod 705 to pull the shaking box 301, but innovatively adopts a controllable shaking amplitude adjustment device to achieve the reciprocating pulling action of the shaking box 301.

[0066] The swing amplitude adjustment device includes a pin 712, which is inside the drive box 701 and can be flexibly moved inside the drive box 701. The pin 712 is connected to the second connecting rod 707 and the third connecting rod 708 by hinged connection, wherein one end of the second connecting rod 707 is connected to the mounting seat 706, and one end of the third connecting rod 708 is cleverly sleeved on the eccentric wheel 704 to form a rolling fit therewith, thereby ensuring the smoothness of movement.

[0067] The mounting seat 706 is connected to the sway box 301 via the buffer seat 711. In the present embodiment, the buffer seat 711 is made of rubber material, which can effectively prevent the separation screen from being damaged due to misalignment, thereby further improving the stability of the present invention.

[0068] In addition, a support plate 709 is firmly installed in the drive box 701, and a telescopic member 710 is hinged on the support plate 709. By adjusting the length of the telescopic member 710, we can accurately change the position of the pin 712. Figure 16-19 As shown, when the telescopic member 710 is extended, the pin 712 will rise accordingly, causing the shaking box 301 to shift to the left, and the offset distance will be reduced accordingly. This design enables the present solution to better meet the needs of screening smaller grain particles. On the contrary, when the telescopic member 710 is retracted, the pin 712 drops, and the shaking box 301 shifts to the right, and the offset distance increases, making it more suitable for the screening and separation operation of larger grain particles.

[0069] It should be noted that the telescopic member 710 of the present invention can adopt a buffer hydraulic cylinder. When the machine is running, the buffer hydraulic cylinder can undergo a certain amount of telescopic deformation, thereby effectively changing the distance of the single displacement of the shaking screen, so that the present invention can cope with the separation operation of grains with different specific gravities. The reciprocating telescopic amplitude of the buffer hydraulic cylinder can be changed by controlling the pressure of its internal hydraulic oil, thereby greatly improving the applicability, and the buffer hydraulic cylinder can effectively buffer the impact force, ensuring that the equipment runs more smoothly and with lower noise. In addition, the present invention also provides another equally efficient telescopic support solution-using an electric push rod with a self-locking function as a rigid telescopic support member. This choice stands out for its high-precision control capability, which can achieve precise control of the shaking amplitude of the shaking box 301, thereby further ensuring that the quality of the screened products is purer, meeting higher standards of production requirements, and bringing unprecedented flexibility and precision to the grain separation operation.

[0070] In this embodiment, refer to Fig.19 When the buffer hydraulic cylinder contracts, it will pull the shaking screen in the eccentric direction, and when the eccentric wheel 704 rotates, the shaking amplitude of the shaking screen will decrease. Correspondingly, when the buffer hydraulic cylinder extends, it will push the shaking screen in the direction away from the eccentricity, and when the eccentric wheel 704 rotates, the shaking amplitude of the shaking screen will increase. When the eccentric wheel 704 drives the shaking screen to rotate, the pressure in the buffer hydraulic cylinder is reduced, so that the second connecting rod 707 squeezes and stretches the buffer hydraulic cylinder to a greater extent, thereby making the shaking amplitude of the shaking screen larger. Correspondingly, the pressure in the buffer hydraulic cylinder is increased, so that the second connecting rod 707 squeezes and stretches the buffer hydraulic cylinder to a smaller extent, thereby making the shaking amplitude of the shaking screen larger.

[0071] In another embodiment, please refer to Fig. 20We fixedly installed the hydraulic cylinder 607 on the second bracket 102, and the hinged seat of the support frame 601 was cleverly installed on the end face of the piston rod of the hydraulic cylinder 607. When the hydraulic cylinder 607 extends, the lowest end of the support frame 601 rises, causing the shaking box 301 to shift to the right, and the offset distance increases. This design is more conducive to the screening of larger grain particles. When the hydraulic cylinder 607 contracts, the lowest end of the support frame 601 drops, and the shaking box 301 shifts to the left, and the offset distance decreases, thereby better adapting to the screening needs of smaller grain particles.

[0072] In another embodiment, based on the above embodiment, referring to Figure 21-23 A slide rail 715 is provided on the support plate 709, and a lead screw 716 is installed in the drive box 701. The lead screw 716 is arranged parallel to the slide rail 715. A servo motor 714 with a self-locking device is installed on one side of the drive box 701. The servo motor 714 drives the lead screw 716. Two nut seats 717 arranged oppositely are threadedly installed on the lead screw 716. One end of the telescopic member 710 is hinged on the nut seat 717. The thread directions of the two nut seats 717 are opposite. When the lead screw 716 rotates, the two nut seats 717 move in opposite directions, so that when the lead screw 716 rotates, the position of the pin shaft 712 can be changed by changing the nut seat 717, thereby changing the offset distance of the shaking screen when the eccentric wheel 704 rotates.

[0073] It should be noted that when the two nut seats 717 are reduced, the offset shaking distance of the shaking screen controlled by a single rotation of the eccentric wheel 704 is reduced. When the two nut seats 717 are reduced, the offset shaking distance of the shaking screen controlled by a single rotation of the eccentric wheel 704 is increased. Through the above operations, this implementation can adapt to grain-rough separation operations with different specific gravities.

[0074] In this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0075] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mobile rice-rough separator with adjustable shaking amplitude, characterized in that: The device comprises a bracket, on which two symmetrically mounted first adjustment devices are mounted, on which a shaking screen is mounted, and on which a driving box (701) is mounted. The driving box (701) is located between the two shaking screens, and a rotating shaft (703) is mounted in the driving box (701). A plurality of eccentric wheels (704) are mounted on the rotating shaft (703). The eccentric wheels (704) are connected to the shaking screen via a shaking amplitude adjustment device. The shaking amplitude adjustment device includes a pin shaft (712), and the pin shaft (712) is located in the driving box (701). A second connecting rod (707), a third connecting rod (708) and a telescopic member (710) are rotatably mounted on the pin shaft (712). One end of the second connecting rod (707) is hinged to one side of the shaking screen, and the third connecting rod (708) is sleeved on the eccentric wheel (704) and rollingly cooperates with it. A support plate (709) is provided in the driving box (701), and one end of the telescopic member (710) is hinged to the support plate (709).

2. The mobile rice-rough separator with adjustable shaking amplitude according to claim 1, characterized in that: The support plate (709) is provided with a slide rail (715), and a lead screw (716) is installed in the drive box (701). The lead screw (716) is arranged parallel to the slide rail (715). A servo motor (714) is installed on one side of the drive box (701). The servo motor (714) drives the lead screw (716). A nut seat (717) is installed on the lead screw (716), and one end of the telescopic member (710) is hinged on the nut seat (717).

3. The mobile rice-rough separator with adjustable shaking amplitude according to claim 1, characterized in that: The first adjustment device comprises a support frame (601), the support frame (601) is hinged on the bracket, the support frame (601) is arranged at an angle with a horizontal plane, one end of the support frame (601) is plugged with a third support rod (606), the third support rod (606) and the support frame (601) are arranged to slide together, one end of the third support rod (606) is hinged with an adjustment bolt (602), the adjustment bolt (602) passes through the bracket and slides together with the bracket, and a plurality of locking bolts are threadedly connected to the adjustment bolt (602); The support frame (601) is cooperatively mounted with two first support rods (603) and two second support rods (604), and the upper ends of the first support rods (603) and the second support rods (604) are hingedly mounted below the shaking screen.

4. The mobile rice-rough separator with adjustable shaking amplitude according to claim 1, characterized in that: The shaking screen comprises a shaking box (301), the shaking box (301) is arranged in an inclined manner, one end of the shaking box (301) is co-operatingly mounted with an observation box (206), a plurality of shaking screen plates (302) are co-operatingly mounted in the shaking box (301) and the observation box (206), and the distance between every two adjacent shaking screen plates (302) is equal.

5. The mobile rice-rough separator with adjustable shaking amplitude according to claim 4 is characterized in that: A conveying trough (204) is installed above the observation box (206), and a material distribution plate (205) is installed inside the conveying trough (204); The other end of the shaking box (301) is matched with a discharge box (303), and the discharge box (303) is provided with a first discharge port (304), a second discharge port (305) and a third discharge port (306).

6. The mobile rice-rough separator with adjustable shaking amplitude according to claim 1, characterized in that: A material distribution trough (401) is installed on the bracket, and a first discharge pipe (402), a second discharge pipe (403) and a third discharge trough (404) are provided on the material distribution trough (401). The first discharge pipe (402), the second discharge pipe (403) and the third discharge trough (404) are respectively arranged in a one-to-one correspondence with the first discharge port (304), the second discharge port (305) and the third discharge port (306).

7. The mobile rice-rough separator with adjustable shaking amplitude according to claim 6, characterized in that: A hoist (201) is installed on one side of the bracket, a feed hopper (202) is installed on one side of the hoist (201), and a material distribution pipe (207) is installed at the discharge port of the hoist (201).

8. The mobile rice-rough separator with adjustable shaking amplitude according to claim 6, characterized in that: A material distribution hopper (203) is mounted on one side of the bracket, and two discharge ports are arranged on the lower side of the material distribution hopper (203), and the two discharge ports are arranged corresponding to the conveying trough (204).

9. The mobile rice-rough separator with adjustable shaking amplitude according to claim 8, characterized in that: The second discharge pipe (403) is connected with a screening trough (501), a filter plate (504) is provided in the screening trough (501), a second discharge trough (502) and a third discharge trough (503) are installed at one end of the screening trough (501), and one end of the second discharge trough (502) is connected with the feed hopper (202).

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