A stone-removing machine for wheat cleaning

Abstract

The present invention discloses a stone-removing machine for wheat cleaning, which relates to the field of wheat processing and includes a housing and a vibrating screen. The vibrating screen is installed inside the housing. A support push rod and a spring support rod are connected to the bottom end of the vibrating screen. Inside the vibrating screen, a first filter screen, a second filter screen and a bottom plate are installed in sequence from top to bottom, and the bottom ends of the first filter screen, the second filter screen and the bottom plate all extend to the outside of the vibrating screen. In the process of screening wheat, the present invention can drive a transmission rod to move up and down reciprocally through a flywheel. The transmission rod drives a transmission gear set to rotate through a toothed plate on the side. The transmission gear set drives a bidirectional lead screw to rotate, and the bidirectional lead screw drives a sliding block to move. The sliding block drives a scraper to move synchronously through a magnet, so as to push the wheat at the top of the first filter screen and make the wheat evenly distributed on the first filter screen, thereby improving the filtering effect.

Description

Technical Field

[0001] The present invention relates to the field of wheat processing, and specifically to a stone-removing machine for wheat cleaning. Background Art

[0002] Wheat is an annual or biennial herbaceous plant of the Gramineae family and the Triticum genus, and is an important agricultural crop. During the wheat harvesting process, it needs to be dried in the sun and other environments, and then the dried wheat is collected. During the collection process, wheat will be mixed with some impurities such as dust and stones. In order to avoid affecting the subsequent processing of wheat, a stone-removing machine is needed to clean the large impurities in the wheat.

[0003] The existing stone-removing machine such as CN113857033B discloses a clogging-preventing cleaning and stone-removing machine for rice processing, including a box body main body, a feed bin and a feed inlet; the feed bin is embedded at the upper end of the box body main body; the feed inlet is opened at one end of the feed bin; it includes a screening module, a turning module, a dredging module, a pushing module, a lifting module, a rice outlet bin, a stone outlet box, a stone outlet bin and a vibration motor; the screening module includes a first screening frame, a second screening frame and a flat plate; the first screening frame is inclined at the lower end of the feed bin, with the end towards the feed inlet being high and the other end being low; the four corners of the first screening frame are hinged to the box body main body; the second screening frame is inclined at the lower end of the first screening frame, with the end towards the feed inlet being low and the other end being high; the four corners of the second screening frame are hinged to the box body main body; the flat plate is inclined at the lower end of the second screening frame, with the end towards the feed inlet being high and the other end being low; the four corners of the flat plate are hinged to the box body main body.

[0004] Although the existing technology can sort grains (wheat) through a multi-layer stratification method and prevent the grains from accumulating at the feed inlet position, during the screening process, the accumulated grains are evenly spread by the movement of the scraper (rake). The operation of the scraper requires driving by a motor and a screw, etc. During the screening process, it is very easy for the grains to accumulate inside the screw, affecting the movement of the scraper. Secondly, during the cleaning process, a motor is needed to drive the flywheel (vibration motor) to drive the overall vibration of the stone-removing machine. However, during the vibration process, the vibration frequencies of the various layers of partition nets inside the stone-removing machine are the same, which will cause the wheat to continuously move to one position during the vibration process, resulting in the accumulation of some wheat and affecting the filtering and feeding efficiency. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a stone-removing machine for wheat cleaning to solve the technical problems that wheat and the like are prone to accumulate outside the screw and the separation effect is poor due to the same frequency of each group of filter meshes.

[0006] To achieve the above object, the present invention provides the following technical solution: A stone-removing machine for wheat cleaning, comprising a housing and a vibrating screen. The vibrating screen is installed inside the housing. The bottom end of the vibrating screen is connected with a support push rod and a spring support rod. Inside the vibrating screen, a first filter screen, a second filter screen and a bottom plate are installed in sequence from top to bottom. The bottom ends of the first filter screen, the second filter screen and the bottom plate all extend to the outside of the vibrating screen. Two groups of motors are installed at the bottom end of the vibrating screen. The output end of each group of motors is connected with a flywheel. A transmission rod is movably connected inside the flywheel. The transmission rod is located outside the vibrating screen. The transmission rod extends upward through the second filter screen and extends to the same height as the first filter screen and is connected with a toothed plate. Bidirectional lead screws are installed on both sides of the vibrating screen. The bidirectional lead screws are in transmission connection with the toothed plate. A sliding block is rotatably connected to the outer wall of the bidirectional lead screw. A magnet is installed at the end of the sliding block. The top end of the first filter screen is connected with a scraper. The end of the scraper is aligned with the magnet, and the end of the scraper also has magnetism.

[0007] By adopting the above technical solution, it is possible to conveniently screen wheat. During the screening process, the bidirectional lead screw is placed outside the vibrating screen, so as to avoid impurities from accumulating in the screw structure, thus facilitating the discharge of wheat and reducing the loss of wheat.

[0008] The present invention is further configured such that three groups of diversion plates are installed on both sides of the housing, and each group of diversion plates is respectively located at the bottom ends of the first filter screen, the second filter screen and the bottom plate.

[0009] By adopting the above technical solution, it is possible to conveniently discharge wheat from the housing and the vibrating screen, and reduce the influence on the housing when the vibrating screen shakes.

[0010] The present invention is further configured such that a feed inlet is opened at the top end of the diversion plate, and the feed inlet is aligned with the first filter screen inside the vibrating screen. A fixing plate is opened at the edge of the feed inlet, and the feed inlet is installed at the top end of the housing through the fixing plate.

[0011] By adopting the above technical solution, it is convenient to inject wheat into the vibrating screen through the feed inlet.

[0012] The present invention is further configured such that the first filter screen and the bottom plate are arranged in parallel, the second filter screen and the first filter screen have opposite inclination angles, and mesh plates are installed inside the first filter screen and the second filter screen. The pore diameter of the mesh plate of the first filter screen is larger than the pore diameter of the mesh plate of the second filter screen.

[0013] By adopting the above technical solution, it is possible to conveniently screen wheat of different sizes.

[0014] The present invention is further configured such that a first transmission gear set is installed on the outer side of the housing on the side of each set of toothed plates. A transmission belt is sleeved outside the first transmission gear set. A second transmission gear set is connected to the inner wall of the transmission belt away from the second transmission gear set. The second transmission gear set is in transmission connection with the bidirectional lead screw.

[0015] By adopting the above technical solution, each transmission gear set can drive the bidirectional lead screw to rotate.

[0016] The present invention is further configured such that the transmission belt includes a one-way gear, a transmission rod, and transmission teeth. The one-way gear meshes with the toothed plate. The second transmission gear set includes a helical gear, a transmission rod, and transmission teeth. The transmission belt is sleeved outside the two sets of transmission teeth. A meshing gear is connected to the end of the bidirectional lead screw. The meshing gear meshes with the helical gear of the second transmission gear set.

[0017] By adopting the above technical solution, the bidirectional lead screw can rotate in one direction.

[0018] The present invention is further configured such that a hammering rod is installed above the second filter screen on the outer side of the transmission rod. A fixing frame is connected to the top end of the hammering rod. A spring is installed inside the fixing frame. The hammering rod is movably connected to the fixing frame through the spring. The transmission rod penetrates through the second filter screen, and a first inclined plate is provided at the connection position between the transmission rod and the second filter screen. The first inclined plate faces the vibrating screen.

[0019] By adopting the above technical solution, the second filter screen can be hammered by the hammering rod, enabling the second filter screen to vibrate with different effects.

[0020] The present invention is further configured such that a sliding groove plate is connected to the bottom end of the transmission rod. The transmission rod is movably connected to the flywheel through the sliding groove plate.

[0021] By adopting the above technical solution, it is convenient to drive the transmission rod to move up and down by the rotation of the flywheel.

[0022] The present invention is further configured such that limiting rods are installed on the outer walls on both sides of the flywheel. A counterweight block is sleeved outside the limiting rods, and the counterweight block is fixed to the outside of the flywheel through a nut.

[0023] By adopting the above technical solution, the self-weight of the flywheel can be changed, thereby changing the vibration frequency and amplitude of the vibrating screen.

[0024] In summary, the present invention mainly has the following beneficial effects:

[0025] In the present invention, through structures such as a vibrating screen, spring support rods, a motor, and a flywheel, after wheat enters the vibrating screen, the motor drives the flywheel to rotate. The flywheel drives the vibrating screen to shake through centrifugal force, thereby shaking and screening the incoming wheat, enabling the wheat to quickly pass through each group of filter meshes and improving the filtering effect.

[0026] In the present invention, through the motor, flywheel, transmission rod, transmission gear set, bidirectional lead screw, and scraper provided, during the screening process of wheat, the flywheel drives the transmission rod to move up and down reciprocally. The transmission rod drives the transmission gear set to rotate through the toothed plate on the side. The transmission gear set drives the bidirectional lead screw to rotate, and the bidirectional lead screw drives the sliding block to move. The sliding block drives the scraper to move synchronously through a magnet, pushing the wheat at the top of the first filter mesh, enabling the wheat to be evenly distributed on the first filter mesh, improving the filtering effect, and avoiding structures such as screw rods above the filter mesh, preventing wheat from accumulating in the bidirectional lead screw and reducing blockages.

[0027] In the present invention, through the transmission rod and the second filter mesh provided, when the wheat falls on the second filter mesh, the transmission rod moves up and down to drive the hammering rod to repeatedly strike the second filter mesh, and the angle of the hammering rod can be adjusted according to requirements, thus facilitating the change of the hammering direction, making the vibration mode of the second filter mesh different from that of the first filter mesh, improving the vibration effect of the second filter mesh, avoiding the same vibration mode causing the wheat to move to one side and resulting in wheat accumulation, and improving the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic structural diagram of the present invention;

[0029] Figure 2 is a schematic structural diagram of the internal vibrating screen of the present invention;

[0030] Figure 3 is a schematic structural diagram of the bottom of the vibrating screen of the present invention;

[0031] Figure 4 is of the present invention Figure 3 is a schematic diagram of the enlarged partial structure at A in the present invention;

[0032] Figure 5 is a schematic structural diagram of the inside of the vibrating screen of the present invention;

[0033] Figure 6 is a schematic connection structural diagram of the bidirectional lead screw and each group of transmission gear sets of the present invention;

[0034] Figure 7 is a schematic structural diagram of the cross-section of the scraper of the present invention;

[0035] Figure 8 is a schematic structural diagram of the installation of the transmission rod of the present invention;

[0036] Figure 9 Schematic diagram of the connection between the transmission rod and the flywheel of the present invention;

[0037] Figure 10 For the present invention Figure 9 Enlarged schematic diagram of part B in the present invention;

[0038] Figure 11 Exploded schematic diagram of the flywheel of the present invention.

[0039] In the figure: 1. Outer shell; 101. Deflector; 102. Feed inlet; 2. Vibrating screen; 201. First filter screen; 202. Second filter screen; 203. Bottom plate; 3. Support push rod; 4. Spring support rod; 5. Motor; 6. Bidirectional lead screw; 601. Meshing gear; 602. Sliding block; 603. Magnet; 7. First transmission gear set; 701. Transmission belt; 702. Second transmission gear set; 8. Transmission rod; 801. Hammering rod; 802. Toothed plate; 803. First inclined plate; 804. Fixed frame; 805. Chute plate; 9. Flywheel; 901. Counterweight; 10. Scraper; 1001. Second inclined plate. Detailed implementation manners

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0041] Next, the embodiments of the present invention will be described according to the overall structure of the present invention.

[0042] A stone removing machine for wheat cleaning, as Figures 1 to 11As shown in the figure, it includes a housing 1 and a vibrating screen 2. The vibrating screen 2 is installed inside the housing 1. Three groups of guide plates 101 are installed on both sides of the housing 1. An inlet 102 is provided at the top of the guide plate 101. A fixed plate is provided at the edge of the inlet 102. The inlet 102 is installed at the top of the housing 1 through the fixed plate. The bottom end of the vibrating screen 2 is connected with a support push rod 3 and a spring support rod 4. During use, first start the support push rod 3 to release the limit on the vibrating screen 2. Inside the vibrating screen 2, a first filter screen 201, a second filter screen 202 and a bottom plate 203 are installed in sequence from top to bottom. And the bottom ends of the first filter screen 201, the second filter screen 202 and the bottom plate 203 all extend to the outside of the vibrating screen 2. The first filter screen 201 is arranged parallel to the bottom plate 203. The second filter screen 202 has an opposite inclination angle to the first filter screen 201. Mesh plates are installed inside the first filter screen 201 and the second filter screen 202. The pore diameter of the mesh plate of the first filter screen 201 is larger than that of the mesh plate of the second filter screen 202. Each group of guide plates 101 is respectively located at the bottom ends of the first filter screen 201, the second filter screen 202 and the bottom plate 203. Wheat is injected into the vibrating screen 2 through the inlet 102. Two motors 5 are installed at the bottom end of the vibrating screen 2. The output end of each motor 5 is connected with a flywheel 9. Start the motor 5 to drive the flywheel 9 to rotate. The flywheel 9 drives the vibrating screen 2 to vibrate through centrifugal force, and cooperates with the filter screen to screen the wheat. A transmission rod 8 is movably connected inside the flywheel 9. The bottom end of the transmission rod 8 is connected with a chute plate 805. The transmission rod 8 is movably connected with the flywheel 9 through the chute plate 805. The transmission rod 8 is located outside the vibrating screen 2. The transmission rod 8 extends upward through the second filter screen 202 and extends to the same height as the first filter screen 201 and is connected with a toothed plate 802. Bidirectional lead screws 6 are installed on both sides of the vibrating screen 2. The bidirectional lead screws 6 are in transmission connection with the toothed plate 802. A sliding block 602 is rotatably connected to the outer wall of the bidirectional lead screw 6. A magnet 603 is installed at the end of the sliding block 602. The top end of the first filter screen 201 is connected with a scraper 10. The end of the scraper 10 is aligned with the magnet 603, and the end of the scraper 10 also has magnetism, which can drive the scraper 10 to move cyclically on the first filter screen 201, so as to push and clean the wheat, and reduce the situation of wheat accumulation in a narrow environment.

[0043] Please refer to Figure 3 , Figure 4 and Figure 6, on the outer side of the housing 1, a first transmission gear set 7 is installed on the side of each set of toothed plates 802. A transmission belt 701 is sleeved on the outer side of the first transmission gear set 7. The inner wall of the transmission belt 701 far from the second transmission gear set 702 is connected with a second transmission gear set 702. The second transmission gear set 702 is in transmission connection with the bidirectional lead screw 6. The transmission belt 701 includes a one-way gear, a transmission rod and transmission teeth. The one-way gear meshes with the toothed plate 802. The second transmission gear set 702 includes a helical gear, a transmission rod and transmission teeth. The transmission belt 701 is sleeved on the outer sides of the two sets of transmission teeth. The end of the bidirectional lead screw 6 is connected with a meshing gear 601. The meshing gear 601 meshes with the helical gear of the second transmission gear set 702, and can mesh with the bidirectional lead screw 6 at different angles, so as to drive the bidirectional lead screw 6 to rotate and improve the adjustment angle.

[0044] Please refer to Figures 8 to 10 , a hammering rod 801 is installed above the second filter screen 202 on the outer side of the transmission rod 8. The top end of the hammering rod 801 is connected with a fixing frame 804. A spring is installed inside the fixing frame 804. The hammering rod 801 is movably connected with the fixing frame 804 through the spring. The transmission rod 8 penetrates through the second filter screen 202, and a first inclined plate 803 is provided at the connection position of the transmission rod 8 and the second filter screen 202. The first inclined plate 803 faces the vibrating screen 2, which is convenient for vibrating the second filter screen 202 in other ways, improving the vibration effect, and reducing the blockage of wheat and the like on the transmission rod 8 through the first inclined plate 803.

[0045] Please refer to Figure 11 , limiting rods are installed on the outer walls on both sides of the flywheel 9. A counterweight 901 is sleeved on the outer side of the limiting rod, and the counterweight 901 is fixed on the outer side of the flywheel 9 through a nut, which is convenient for adjusting the weight of the flywheel 9.

[0046] During assembly, the vibrating screen 2 is installed inside the housing, so that the outlets of the first filter screen 201, the second filter screen 202 and the bottom plate 203 are located above the guide plate 101, the feed inlet 102 is directly opposite to the upper part of the first filter screen 201, and the vibrating screen 2 is supported and fixed by multiple groups of support push rods 3 and spring support rods 4 (the position of the spring support rod 4 can be adjusted, which is convenient for supporting and limiting vibrating screens 2 of different weights);

[0047] During use, first start multiple groups of support push rods 3, drive the support head at the top of the support push rods 3 to separate from the bottom plate 203, and only support the vibrating screen 2 through the shell 1 and multiple groups of spring support rods 4, release the limit of the vibrating screen 2, and put the wheat into the vibrating screen 2 through the feed port 102. The wheat first falls on the first filter screen 201, and the first filter screen 201 screens the wheat. Then start the motor 5, and the output end of the motor 5 drives the flywheel 9 to rotate. The centrifugal force generated by the flywheel 9 drives the vibrating screen 2 to vibrate, and at the same time, the flywheel 9 pushes the inner slide bar and the slide plate 805 to push the wheat into the vibrating screen 2. The driving transmission rod 8 performs reciprocating motion up and down, and the transmission rod 8 drives the tooth plate 802 to move up and down outside the first transmission gear set 7, thereby driving the first transmission gear set 7 to rotate back and forth. The first transmission gear set 7 is composed of a one-way gear (ratchet structure, the prior art is not repeated here), so that the first transmission gear set 7 intermittently drives the second transmission gear set 702 to rotate through the transmission belt 701. The second transmission gear set 702 is connected to the meshing gear 601 through the helical gear, thereby driving the bidirectional screw rod 6 to rotate intermittently, and the bidirectional screw rod 6 drives the sliding block 602 to rotate intermittently. The sliding block 602 drives the scraper 10 at the top of the first filter screen 201 to move synchronously through the magnet 603, thereby reducing the slot structure on the first filter screen 201 and placing the screw structure on the outside of the first filter screen 201, reducing the accumulation of wheat in the bidirectional screw rod 6, causing the bidirectional screw rod 6 to be blocked, improving the feeding effect, and the larger impurities screened out slide down along the first filter screen 201 under the action of gravity, and the larger impurities are discharged through a group of guide plates 101, and the remaining wheat falls on the second filter screen 202, and the wheat is further screened by the second filter screen 202. Select, and at the same time, the up and down movement of the transmission rod 8 will drive the hammer rod 801 to hit the second filter screen 202 back and forth, thereby changing the vibration amplitude and angle of the second filter screen 202 (the angle of the hammer rod 801 can be adjusted), thereby changing the way the second filter screen 202 filters the wheat, and further improving the filtering effect. At this time, the smaller impurities remaining after filtration will roll along the second filter screen 202, and the smaller impurities will fall on a group of guide plates 101 and be discharged. The remaining wheat will fall on the bottom plate 203, and the wheat will slide downward along the bottom plate 203, and the wheat will fall on a group of guide plates 101 and be discharged.

[0048] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiment without creative contribution as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A stone-removing machine for wheat cleaning, comprising a housing (1) and a vibrating screen (2), the vibrating screen (2) being installed inside the housing (1), characterized in that: The bottom end of the vibrating screen (2) is connected to a support push rod (3) and a spring support rod (4). Inside the vibrating screen (2), a first filter screen (201), a second filter screen (202), and a bottom plate (203) are installed in sequence from top to bottom. The bottom ends of the first filter screen (201), the second filter screen (202), and the bottom plate (203) all extend to the outside of the vibrating screen (2). Two groups of motors (5) are installed at the bottom end of the vibrating screen (2). The output end of each group of motors (5) is connected to a flywheel (9). A transmission rod (8) is movably connected inside the flywheel (9). The transmission rod (8) is located outside the vibrating screen (2). The transmission rod (8) extends upward through the second filter screen (202) and extends to the same height as the first filter screen (201) and is connected to a toothed plate (802). Two-way lead screws (6) are installed on both sides of the vibrating screen (2). The two-way lead screws (6) are in transmission connection with the toothed plate (802). A sliding block (602) is rotatably connected to the outer wall of the two-way lead screw (6). A magnet (603) is installed at the end of the sliding block (602). The top end of the first filter screen (201) is connected to a scraper (10). The end of the scraper (10) is aligned with the magnet (603), and the end of the scraper (10) also has magnetism; On the outside of the housing (1), a first transmission gear set (7) is installed on the side of each group of toothed plates (802). A transmission belt (701) is sleeved outside the first transmission gear set (7). A second transmission gear set (702) is connected to the inner wall of the transmission belt (701) far from the second transmission gear set (702). The second transmission gear set (702) is in transmission connection with the two-way lead screw (6); The transmission belt (701) includes a one-way gear, a small transmission rod A, and transmission teeth. The one-way gear meshes with the toothed plate (802). The second transmission gear set (702) includes a helical gear, a small transmission rod B, and transmission teeth. The transmission belt (701) is sleeved outside the two groups of transmission teeth. The end of the two-way lead screw (6) is connected to a meshing gear (601). The meshing gear (601) meshes with the helical gear of the second transmission gear set (702); The flywheel (9) will push the transmission rod (8) to perform reciprocating up and down movements through the inner slide rod and chute plate (805). The transmission rod (8) drives the toothed plate (802) to move up and down outside the first transmission gear set (7), driving the first transmission gear set (7) to perform reciprocating rotation. The first transmission gear set (7) is composed of one-way gears, so that the first transmission gear set (7) intermittently drives the second transmission gear set (702) to rotate through the transmission belt (701). The second transmission gear set (702) is in transmission connection with the meshing gear (601) through a helical gear, thereby driving the two-way lead screw (6) to perform intermittent rotation. The two-way lead screw (6) drives the sliding block (602) to also perform intermittent movement.

2. The stone removing machine for wheat cleaning according to claim 1, characterized in that: Three groups of guide plates (101) are installed on both sides of the housing (1). Each group of guide plates (101) is respectively located at the bottom ends of the first filter screen (201), the second filter screen (202), and the bottom plate (203).

3. The stone separator for wheat cleaning according to claim 2, characterized in that: The top end of the deflector plate (101) is provided with a feed inlet (102), and the feed inlet (102) is aligned with the first filter screen (201) inside the vibrating screen (2). A fixing plate is provided at the edge of the feed inlet (102), and the feed inlet (102) is installed at the top end of the outer shell (1) through the fixing plate.

4. The stone removing machine for wheat cleaning according to claim 1, characterized in that: The first filter screen (201) is arranged parallel to the bottom plate (203), the second filter screen (202) has an inclination angle opposite to that of the first filter screen (201). The inner part of the first filter screen (201) and the second filter screen (202) is provided with a mesh plate, and the pore diameter of the mesh plate of the first filter screen (201) is larger than the pore diameter of the mesh plate of the second filter screen (202).

5. A stone-removing machine for wheat cleaning according to claim 1, characterized in that: A hammering rod (801) is installed above the second filter screen (202) on the outer side of the transmission rod (8). The top end of the hammering rod (801) is connected with a fixing frame (804). A spring is installed inside the fixing frame (804). The hammering rod (801) is movably connected with the fixing frame (804) through the spring. The transmission rod (8) penetrates through the second filter screen (202), and a first inclined plate (803) is provided at the connection position between the transmission rod (8) and the second filter screen (202), and the first inclined plate (803) faces the vibrating screen (2).

6. The stone removing machine for wheat cleaning according to claim 1, characterized in that: The bottom end of the transmission rod (8) is connected with a chute plate (805), and the transmission rod (8) is movably connected with the flywheel (9) through the chute plate (805).

7. A stone-removing machine for wheat cleaning according to claim 1, characterized in that: Limit rods are installed on the outer walls on both sides of the flywheel (9), and a counterweight (901) is sleeved on the outer side of the limit rods, and the counterweight (901) is fixed on the outer side of the flywheel (9) through a nut.

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