A fertilizer screening machine with replaceable screen deck

Abstract

The utility model relates to a kind of fertilizer screening machine convenient to replace screen plate, belong to fertilizer screening technical field.The fertilizer screening machine convenient to replace screen plate, it includes: mounting bracket and screening frame, the screening frame is installed in the inboard of mounting bracket, the inboard of screening frame is rotatably connected with circular frame, the side of mounting bracket is fixedly connected with motor;By splitting the integral screen into multiple screening plates, while ensuring the screening effect, avoid the problem that installation is inconvenient due to large volume when replacing and installing screening plate, and in the screening plate replacement installation process, under the action of multiple fixed rods and corresponding strip-shaped grooves, preliminary limiting of the screening plate being replaced and installed can be realized, and by connecting and fixing two arc-shaped frames, multiple screening plates can be re-pressed and fixed, and the installation of screening plate is completed, the scheme is more convenient for replacement operation when replacing screening plate, thereby improving the replacement efficiency of screening plate by staff.

Description

Technical Field

[0001] This utility model relates to the field of fertilizer screening technology, and in particular to a fertilizer screening machine that is easy to replace the screen plate. Background Technology

[0002] Fertilizer refers to substances that provide essential nutrients to plants, improve soil properties, and enhance soil fertility. It is an important material basis for agricultural production. During the processing of fertilizer, screening is required. Currently, drum screens are a common screening method for fertilizers. A drum screen is formed by installing a screen and a rotating circular frame. When screening fertilizer, the fertilizer to be screened is poured into the rotating drum screen, and the drum screen is driven to rotate, thus performing the screening operation. In order to ensure the screening effect during the use of a drum screen, the screen needs to be replaced regularly.

[0003] Currently, in existing technologies, the screens of drum screeners are usually one-piece. When installing the screen with the rotating circular frame, the one-piece rolled screen needs to be unfolded along the surface of the circular frame and aligned with the installation point of the circular frame. At the same time, multiple bolts are needed for synchronous fixing and limiting. However, due to the large size of the one-piece screen, the installation operation is inconvenient, which affects the efficiency of screen replacement by the staff. Utility Model Content

[0004] Therefore, it is necessary to provide a fertilizer screening machine that facilitates screen plate replacement, addressing the problem that the existing integrated screens are bulky and inconvenient to install, thus affecting the efficiency of screen replacement for workers.

[0005] Includes: a mounting frame and a screening frame, wherein the screening frame is installed inside the mounting frame, and a circular frame is rotatably connected to the inside of the screening frame; a motor is fixedly connected to one side of the mounting frame, and the output shaft of the motor is installed at one end of the rotating shaft of the circular frame. The convenient replacement mechanism includes four screening plates and two arc-shaped frames. The surface of the screening plates is curved into an arc shape, and the curvature of the screening plate surface is the same as that of the circular frame surface. Four fixing rods are fixedly connected to the surface of the circular frame in a ring shape. The fixing rods have slots on both sides. The inner wall of the arc-shaped frame is threaded with a threaded rod on one side. Two of the fixing rods have threaded holes on one side of their surfaces, and the two threaded holes are symmetrically distributed.

[0006] In one embodiment, the convenient replacement mechanism further includes multiple bolts and nuts, and mounting plates are fixedly connected to both sides of the surface of the arc-shaped frame. The mounting plates of the two arc-shaped frames are fixedly installed together by multiple bolts and nuts. This facilitates the connection and fixation of the two arc-shaped frames.

[0007] In one embodiment, a limiting groove is formed on the inner wall of the arc-shaped frame, and the vertical cross-section of the arc-shaped frame is a half-circular ring. This facilitates better clamping and fixing of the screening plate after the two arc-shaped frames are fixed.

[0008] In one embodiment, a limiting ring is fixedly connected to one end of the surface of the circular frame, and the opposite end of the limiting ring fixing rod is fixedly connected. This facilitates better movement of the screening plate into position during installation, and fixing the screening plate helps to limit one end of the screening plate.

[0009] In one embodiment, a baffle is fixedly connected to one end of each of the two arc-shaped frames. The baffle is in the shape of a half-circle, and the inner diameter of the baffle is the same as the outer diameter of the circular frame. This facilitates the secure fixing of the other end of the screening plate after it has been fixed.

[0010] In one embodiment, a round rod is fixedly connected to the inner surface of the baffle, and two round holes matching the round rod are formed at the other end of the surface of the circular frame. This facilitates fixing the position of the baffle after the two arc-shaped frames are installed, preventing horizontal movement of the baffle and the fixed frame.

[0011] In one embodiment, contact pads, which are rubber components, are fixedly connected to both sides of the screening plate. This helps to increase the friction between the sides of the screening plate and the inner wall of the strip groove.

[0012] In one embodiment, the bottom end of the round rod is curved into an arc shape. This facilitates better insertion of the round rod into the round hole. Beneficial effects

[0013] This solution uses multiple arc-shaped screening plates installed with a circular frame to form a drum screen for screening waste materials. The integrated screen is divided into multiple screening plates, ensuring screening efficiency while avoiding the inconvenience of replacing large screening plates. During replacement, multiple fixing rods and corresponding slots provide initial positioning of the screen plate, eliminating the need for multiple bolts for simultaneous fixing during the initial connection between the screen plate and the circular frame. Furthermore, connecting and fixing two arc-shaped frames allows for further tightening and installation of the multiple screening plates. This solution simplifies screen plate replacement, improving efficiency for workers. 2. By setting the interaction between the baffle and the limiting ring, it is beneficial to tighten the two ends of the screening plate after it is fixed, so as to prevent the screening plate from moving horizontally. Under the action of the round rod, it is beneficial to fix the installation position of the arc frame, so as to prevent the arc frame from driving the baffle to move horizontally during the operation of the device, thereby enhancing the stability of the screening plate after it is fixed. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the convenient replacement mechanism of this utility model; Figure 3 This is a schematic diagram of the installation of the fixing rod and the circular frame, as well as the arc-shaped frame structure of this utility model. Figure 4 This utility model Figure 3 Enlarged view of point A in the middle; Figure 5 Exploded view of the arc-shaped frame and baffle of this utility model. Figure 6 This is an exploded view of the screening plate and contact pad of this utility model.

[0016] Figure label: 100. Mounting bracket; 200. Motor; 300. Circular frame; 400. Easy replacement mechanism; 410. Screening plate; 411. Contact pad; 420. Arc frame; 421. Mounting plate; 422. Limiting groove; 430. Bolt; 431. Nut; 440. Fixing rod; 441. Strip groove; 450. Threaded rod; 460. Threaded hole; 470. Limiting ring; 480. Baffle; 481. Round rod; 500. Screening frame. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] The following is combined Figures 1-6 This invention describes a fertilizer screening machine with easily replaceable sieve plates.

[0019] In one embodiment, a fertilizer screening machine that facilitates screen plate replacement includes: a mounting frame 100 and a screening frame 500. The screening frame 500 is installed inside the mounting frame 100. A circular frame 300 is rotatably connected to the inner side of the screening frame 500. A motor 200 is fixedly connected to one side of the mounting frame 100. The output shaft of the motor 200 is installed at one end of the rotating shaft of the circular frame 300. The convenient replacement mechanism 400 includes four screening plates 410 and two arc-shaped frames 420. The surface of the screening plates 410 is curved into an arc shape, and the curvature of the surface of the screening plates 410 is the same as the curvature of the surface of the circular frame 300. Four fixing rods 440 are fixedly connected to the surface of the circular frame 300 in a ring. The fixing rods 440 have strip grooves 441 on both sides. The inner wall of the arc-shaped frame 420 is threaded with a threaded rod 450 on one side. The two fixing rods 440 have threaded holes 460 on one side of their surfaces, and the two threaded holes 460 are symmetrically distributed.

[0020] In this embodiment, in the initial state, the four screening plates 410 are arranged in a ring along the surface of the circular frame 300. The inner surface of the screening plates 410 is in contact with the surface of the circular frame 300, and the two sides of the screening plates 410 are respectively located in the corresponding strip grooves 441. The outer surface of the screening plates 410 located in the strip grooves 441 is in contact with the inner wall of the strip grooves 441. Therefore, when the screening plates 410 are installed with the fixing rods 440, the screening plates 410 will be initially limited under the action of the strip grooves 441. After the four screening plates 410 are connected with the four fixing rods 440, the four screening plates 410 and the four fixing rods 440 are combined to form a complete ring. Furthermore, in the initial state, the threaded rods 450 on the two arc-shaped frames 420 are tightened with the corresponding threaded holes 460, thereby connecting the two arc-shaped frames 420 with the two fixed rods 440. At this time, the inner surface of the arc-shaped frame 420 abuts against the outer surface of the screening plate 410, and the contact surfaces of the arc-shaped frame 420 and the screening plate 410 and the circular frame 300 and the screening plate 410 correspond to each other. Therefore, the screening plate 410 will be clamped and fixed under the action of the arc-shaped frame 420 and the circular frame 300. A feeding frame is installed on the other side of the mounting frame 100. During the screening process, the waste material to be screened is poured into the circular frame 300 through the feeding frame, and the motor 200 is started by the controller, so that the output shaft of the motor 200 drives the circular frame 300 and multiple screening plates 410 to rotate and screen the fertilizer. The bottom end of the screening frame 500 is provided with a discharge port, and the qualified fertilizer after screening is discharged from the discharge port.

[0021] It should be noted that during the disassembly and assembly of the screening plate 410, the circular frame 300 can be rotated at a certain angle as needed to facilitate the operation of the staff.

[0022] like Figure 3 Figure 5 As shown, the convenient replacement mechanism 400 also includes multiple bolts 430 and nuts 431. Mounting plates 421 are fixedly connected to both sides of the surface of the arc-shaped frame 420. The mounting plates 421 of the two arc-shaped frames 420 are fixedly installed together by multiple bolts 430 and nuts 431. A limiting groove 422 is formed on the inner wall of the arc-shaped frame 420, and the vertical cross-section of the arc-shaped frame 420 is a half-circle.

[0023] In this embodiment, when the threaded rods 450 on the two arc-shaped frames 420 are tightened with the corresponding threaded holes 460, the four fixing rods 440 will be placed in the corresponding limiting grooves 422 opened in the two arc-shaped frames 420, and the surface of the fixing rods 440 will be in contact with the inner wall of the limiting grooves 422. At this time, the two mounting plates 421 on the two arc-shaped frames 420 are corresponding to each other, and the opposite sides of the two mounting plates 421 are in contact. The two arc-shaped frames 420 can be fixed by using bolts 430 to align with the mounting holes of the two mounting plates 421 and tightening them with nuts 431.

[0024] like Figure 3 As shown, a limiting ring 470 is fixedly connected to one end of the surface of the circular frame 300, and the opposite end of the limiting ring 470 is fixedly connected to the fixing rod 440.

[0025] In this embodiment, when the screening plate 410 is inserted into the strip groove 441, when the screening plate 410 can no longer move horizontally, one end of the screening plate 410 abuts against the limiting ring 470, and the other end of the screening plate 410 and the end of the fixing rod 440 away from the limiting ring 470 are located on the same vertical plane.

[0026] like Figure 3 and Figure 5 As shown, a baffle 480 is fixedly connected to one end of each of the two arc-shaped frames 420. The overall shape of the baffle 480 is a half-circle ring, and the inner diameter of the baffle 480 is the same as the outer diameter of the circular frame 300.

[0027] In this implementation, when the two arc-shaped frames 420 are installed to fix the screening plate 410, the inner surface of the baffle 480 is in contact with the outer surface of the circular frame 300, and the end of the baffle 480 and the arc-shaped frame 420 are in contact with the end of the fixing rod 440 away from the limiting ring 470.

[0028] like Figure 4 As shown, a round rod 481 is fixedly connected to the inner surface of the baffle 480, and two round holes matching the round rod 481 are opened at the other end of the surface of the circular frame 300. The bottom end of the round rod 481 is curved into an arc shape.

[0029] In this embodiment, when installing the arc frame 420, the round rod 481 is inserted into the corresponding round hole. At this time, the threaded rod 450 on the arc frame 420 is aligned with the corresponding thread.

[0030] like Figure 6 As shown, contact pads 411, which are rubber components, are fixedly connected to both sides of the screening plate 410. When the screening plate 410 is installed with the fixing rod 440, the contact pads 411 on both sides of the screening plate 410 abut against the inner wall of the corresponding mounting groove 441, thereby enhancing the stability of the screening plate 410 after it is connected to the fixing rod 440.

[0031] Working principle: When it is necessary to replace the screening plate 410, first remove the multiple screening plates 410 on the circular frame 300. During the removal process, first disconnect the connection between the multiple bolts 430 and the corresponding nuts 431, thereby releasing the fixation of the two arc frames 420. Then, disconnect the connection between the threaded rods 450 and the corresponding threaded holes 460 on the two arc frames 420, thereby releasing the connection between the arc frames 420 and the corresponding fixing rods 440. After completing this operation, remove the two arc frames 420. At this time, release the clamping fixation of the screening plate 410, and then pull the multiple screening plates 410 out of the strip groove 441 in sequence to complete the disassembly of the screening plate 410. When installing the replaced screening plate 410, simply reverse the steps described above. First, insert the four screening plates 410 into their corresponding slots 441 and move them horizontally into place. After insertion, the four screening plates 410 will be arranged in a ring on the surface of the circular frame 300. After insertion, place one of the arc-shaped frames 420 on the surface of the screening plate 410, so that the fixing rod 440 enters the corresponding limiting slot 422. Tighten the threaded rod 450 with the corresponding threaded hole 460 to initially limit the arc-shaped frame 420. Install the other arc-shaped frame 420 in the same way. After this operation, the corresponding mounting plates 421 on the two arc-shaped frames 420 will fit together. At this time, use multiple bolts 430 and nuts 431 to fix the mounting plates 421 on the two arc-shaped frames 420, thus completing the installation of the screening plate 410.

[0032] It should be noted that the motor 200 and other components mentioned above are all devices with relatively mature existing technologies. The specific model can be selected according to actual needs. At the same time, the motor 200 can be powered by an internal power supply or by AC power. The specific power supply method should be selected according to the situation, which will not be elaborated here.

[0033] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A fertilizer screening machine with easily replaceable screen plates, characterized in that, include: The mounting frame (100) and the screening frame (500) are installed on the inner side of the mounting frame (100). A circular frame (300) is rotatably connected to the inner side of the screening frame (500). A motor (200) is fixedly connected to one side of the mounting frame (100). The output shaft of the motor (200) is installed at one end of the rotating shaft of the circular frame (300). The convenient replacement mechanism (400) includes four screening plates (410) and two arc-shaped frames (420). The surface of the screening plate (410) is curved into an arc shape, and the curvature of the surface of the screening plate (410) is the same as the curvature of the surface of the circular frame (300). The surface of the circular frame (300) is fixedly connected with four fixed rods (440) arranged in a ring. The fixed rods (440) are provided with strip grooves (441) on both sides. The inner wall of the arc-shaped frame (420) is threadedly connected to one side of a threaded rod (450). The two fixed rods (440) are provided with threaded holes (460) on one side of their surfaces. The two threaded holes (460) are symmetrically distributed.

2. The fertilizer screening machine with easily replaceable screen plates according to claim 1, characterized in that, The convenient replacement mechanism (400) also includes multiple bolts (430) and nuts (431). Mounting plates (421) are fixedly connected to both sides of the surface of the arc frame (420). The mounting plates (421) of the two arc frames (420) are fixedly installed together by multiple bolts (430) and nuts (431).

3. The fertilizer screening machine with easily replaceable screen plates according to claim 1, characterized in that, The inner wall of the arc frame (420) has a limiting groove (422), and the vertical cross section of the arc frame (420) is a half-circle.

4. The fertilizer screening machine with easily replaceable screen plates according to claim 1, characterized in that, A limiting ring (470) is fixedly connected to one end of the surface of the circular frame (300), and the limiting ring (470) is fixedly connected to the opposite end of the fixing rod (440).

5. The fertilizer screening machine with easily replaceable screen plates according to claim 1, characterized in that, Each of the two arc-shaped frames (420) is fixedly connected to a baffle (480) at one end. The baffle (480) is in the shape of a half-circle, and the inner diameter of the baffle (480) is the same as the outer diameter of the circular frame (300).

6. The fertilizer screening machine with easily replaceable screen plates according to claim 5, characterized in that, A round rod (481) is fixedly connected to the inner surface of the baffle (480), and two round holes matching the round rod (481) are opened at the other end of the surface of the circular frame (300).

7. The fertilizer screening machine with easily replaceable screen plates according to claim 1, characterized in that, Both sides of the screening plate (410) are fixedly connected with contact pads (411), and the contact pads (411) are rubber components.

8. The fertilizer screening machine with easily replaceable screen plates according to claim 6, characterized in that, The bottom end of the round rod (481) is curved into an arc shape.

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