Cage type soil screening machine

Abstract

The utility model relates to a cage type soil screening machine which is characterized by comprising a support, a box body installed on the support, a screen drum connected in the box body in a rotating mode, a driving assembly installed on the box body and used for driving the screen drum to rotate, a cover plate fixedly connected to the upper side of the box body, and a feeding pipe installed on one side of the box body. A discharging opening of the feeding pipe is correspondingly formed between the cover plate and the screen drum, and an air draft assembly is further installed on the box body and corresponds to the screen drum. The utility model has the advantages that the cage type screen drum and the cylinder structure with two open sides are adopted, the leakage holes are formed in the wall of the drum, the traditional screen is replaced, and meanwhile, the scraping plate is arranged on the lower side of the screen drum, so that the winding risk is reduced. Wind power is combined with the screen drum to strengthen the separation effect, the air draft assembly and the fan are connected with the air filter drum, the filter screen is arranged between the air draft assembly and the fan, directional airflow is generated, light straw is blown up and made to suspend or turn over in the screen drum, heavy soil, pebbles and other impurities fall down through the leakage holes, the synergistic effect of wind power and mechanical screening is achieved, and the impurity removal rate is increased.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, specifically a cage-type soil screening machine. Background Technology

[0002] With the advancement of comprehensive utilization of crop straw, the efficient removal of impurities such as soil and stones from the straw has become a crucial step. Currently, the industry primarily uses equipment such as linear vibrating screens and drum screens for straw impurity removal. For example, Zongtian's large-scale straw screening drum screen removes soil by using a rotating drum and a screen to screen the straw, then uses an auger system to discharge soil and other impurities. In addition, there are screening devices that combine wind power with screens, using wind to blow up lighter straw while leaving heavier impurities such as stones and soil on the screen for separation.

[0003] However, existing technologies have many shortcomings. The irregular shape and high flexibility of straw make it prone to tangling on screens or rotating parts when processed by vibrating screens and drum screens. This leads to screen clogging, severely reducing screening efficiency and significantly diminishing the separation effect between straw and impurities. Furthermore, cleaning the tangled straw requires considerable time and manpower, increasing production costs.

[0004] Frequent cleaning of tangled straw is not only time-consuming and labor-intensive, but may also damage the equipment due to improper operation during the cleaning process, further increasing the maintenance cost and repair frequency of the equipment and reducing its service life. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a cage-type soil screening machine.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A cage-type soil screening machine is characterized by: a support frame, a housing mounted on the support frame, a screen cylinder rotatably connected inside the housing, a drive assembly for driving the screen cylinder to rotate mounted on the housing, a cover plate fixedly connected to the upper side of the housing, a feed pipe mounted on one side of the housing, the discharge port of the feed pipe being correspondingly located between the cover plate and the screen cylinder, and an exhaust assembly mounted on the housing, the exhaust assembly being correspondingly located to the screen cylinder.

[0008] Based on the above solution, the following technical solution can also be adopted:

[0009] The drive assembly includes a motor, which drives a transmission assembly, which drives a rotating shaft, and rollers are connected to the rotating shaft. The rollers drive the screen cylinder to rotate.

[0010] A feeding roller is rotatably connected inside the box, and the driving assembly drives the feeding roller. The feeding roller includes a roller shaft, a set of hanging plates is provided on the roller shaft, and end plates are connected to both ends of the roller shaft.

[0011] The exhaust assembly includes a fan connected to a filter cylinder, an air outlet pipe installed on the filter cylinder, the filter cylinder being correspondingly arranged with the sieve cylinder, and a filter screen being provided between the filter cylinder and the sieve cylinder.

[0012] The sieve cylinder is a cylindrical tube with open sides, and a set of perforations is provided on the cylinder wall. The two ends of the cylinder are rotatably connected to the box body.

[0013] The feed pipe includes an arc-shaped pipe, a transition pipe connected to the arc-shaped pipe, an end pipe connected to the transition pipe, and a feed port provided on the end pipe.

[0014] A waste pipe is also installed on the support, and the waste pipe is correspondingly located on the lower side of the screen cylinder.

[0015] A scraper is also installed inside the box, and the scraper is correspondingly arranged on the lower side of the screen cylinder.

[0016] The beneficial effects of this utility model are:

[0017] 1. This device uses a cage-type screen cylinder with an open cylindrical structure on both sides and perforations in the cylinder wall to replace the traditional screen. At the same time, a scraper is installed on the lower side of the screen cylinder to reduce the risk of entanglement.

[0018] 2. The combination of wind power and screen cylinder enhances the separation effect. The exhaust component and the fan are connected to the filter cylinder, and a filter screen is installed between the two to generate directional airflow. Lighter straw is blown up and suspended or turned in the screen cylinder, while heavier impurities such as soil and stones fall through the holes. This achieves the synergistic effect of wind power and mechanical screening, and improves the impurity removal rate.

[0019] 3. The drive system is stable and has low energy consumption. The drive components adopt a "motor-transmission components-shaft-roller" structure. The rollers are driven to rotate by contacting the outer wall of the screen cylinder. Compared with direct gear meshing or belt drive, this reduces mechanical wear, makes the operation smoother, and reduces maintenance costs.

[0020] 4. The feeding and discharging structure is optimized. The feeding pipe adopts an arc-shaped pipe + transition pipe + end pipe design, and the discharge port is located between the cover plate and the screen cylinder, which can guide the material to fall evenly into the top of the screen cylinder and avoid local impact.

[0021] The bottom of the box is equipped with a waste pipe and a scraper. The scraper guides the screened impurities to be collected along the lower side of the screen cylinder and discharged through the waste pipe, reducing residue and facilitating subsequent processing.

[0022] 5. Compact structure and strong applicability

[0023] The entire unit is supported by a bracket, and the internal layout of the box is reasonable. The open design at both ends of the screen cylinder can adapt to continuous feeding and discharging, making it suitable for large-scale screening of long fiber materials such as straw, and also facilitating equipment maintenance and cleaning. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the basic structure of this utility model;

[0025] Figure 2 for Figure 1 Another direction diagram;

[0026] Figure 3 for Figure 2 A schematic diagram of the decomposed structure;

[0027] Figure 4 This is a schematic diagram of the tensioner installation. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] like Figure 1 , Figure 2 and Figure 3 As shown, this utility model relates to a cage-type soil screening machine, including a support 1, which is a square frame. A square box 2 is installed on the support 1. The box 2 includes two parallel upright plates. A connecting plate and three connecting rods are installed at the four corners between the two upright plates, wherein the connecting plate is located at the corner on the upper side of the feed end, and the connecting rods are square rods.

[0031] A sieve cylinder 3 is rotatably connected inside the housing 2. Both ends of the cylinder are rotatably connected to the housing 2, allowing the sieve cylinder 3 to rotate freely within the housing 2. The sieve cylinder 3 is an open cylinder with a set of perforations evenly distributed on its wall. When filtering impurities from the straw, the straw is conveyed from the top of the sieve cylinder 3, and impurities such as dirt and small metal pieces fall through the perforations. The straw is then conveyed by the sieve cylinder 3 to the other side of the housing 2.

[0032] An arc-shaped rod 19 is welded to the upper inner side of each upright plate of the box 2. The two arc-shaped rods 19 are arranged in parallel, and a cover plate 5 is connected between the two arc-shaped rods 19 by screws. The cover plate 5 is an arc-shaped plate with the arc-shaped groove opening facing downwards. The cover plate 5 is positioned above the sieve cylinder 3. A channel for transporting straw is provided between the sieve cylinder 3 and the cover plate 5. Under the action of the cover plate 5, the straw is confined within the channel, preventing the straw from falling out of the box 2 during transport. At the same time, this structure also helps to reduce the effect of straw dust.

[0033] A drive assembly 4 for rotating the screen cylinder 3 is also installed on the housing 2. The drive assembly 4 includes a motor 8, which is a servo motor. The motor 8 drives a transmission assembly 9, which in turn drives two rotating shafts 10. Rollers 11 are connected to both ends of each rotating shaft 10, and each roller 11 drives the screen cylinder 3 to rotate. The transmission assembly 9 includes a sprocket and a chain that cooperate with each other. The sprocket includes a driving sprocket connected to the output end of the motor 8 and a driven sprocket connected to the ends of the two rotating shafts 10. A tension wheel 20 is also installed on one side of the housing 2 and is connected to the chain. Figure 4 As shown, the tensioning wheel 20 is specifically connected as follows: a waist-shaped hole 2.1 is provided on the upper part of the housing 2, and the tensioning wheel 20 is sleeved and fixed on the axle 21. The axle 21 is inserted into the waist-shaped hole 2.1 and locked and fixed to the housing 2 by a locking nut. In use, by adjusting the position of the axle 21 in the waist-shaped hole 2.1, the chain is tensioned. The motor 8 drives the drive sprocket to rotate, which in turn drives the chain. The chain drives the driven sprocket to rotate, thereby making the roller 11 roll and drive the screen cylinder 3 to rotate, realizing the conveying of straw. At the same time, during the conveying process, impurities fall from the holes and are discharged through the waste pipe 16 installed on the lower side of the support 1. The waste pipe 16 is correspondingly set on the lower side of the screen cylinder 3. The waste pipe 16 is a square frustum-shaped cylindrical structure with open upper and lower sides.

[0034] A feeding roller 12 and a scraper 17 are rotatably connected at the outlet inside the housing 2. Both the feeding roller 12 and the scraper 17 are arranged parallel to the screen cylinder 3, with the scraper 17 correspondingly positioned on the lower side of the screen cylinder 3. The feeding roller 12 includes a roller shaft 12.1, which is a round rod. A set of hanging plates 12.2 are evenly distributed around the circumference of the roller shaft 12.1, with each hanging plate 12.2 arranged along the generatrix of the roller shaft 12.1. End plates 12.3 are connected to both ends of the roller shaft 12.1. A driven sprocket is also installed at one end of the roller shaft 12.1, connected to a chain. The motor 8 drives the feeding roller 12. A straw conveyor belt is set on the lower side of the feeding roller 12. The feeding roller 12 conveys the straw on the screen cylinder 3 onto the conveyor belt, transporting the straw to the next process. The scraper 17 blocks the conveyed straw to prevent it from entering the lower side of the screen cylinder 3.

[0035] A feed pipe 6 is installed at the feed end of the housing 2, and the discharge port of the feed pipe 6 is correspondingly located in the channel between the cover plate 5 and the screen cylinder 3. The feed pipe 6 includes an arc-shaped pipe 6.1, a transition pipe 6.2 connected to the arc-shaped pipe 6.1, and an end pipe 6.3 connected to the transition pipe 6.2. The end pipe 6.3 is provided with a feed port 6.4. During installation, a conveyor belt for conveying straw is set at the feed port 6.4. The straw on the conveyor belt enters the channel between the cover plate 5 and the screen cylinder 3 through the feed pipe 6.

[0036] A ventilation assembly 7 is also installed on the housing 2, and the ventilation assembly 7 is set accordingly to the screen cylinder 3. The ventilation assembly 7 includes a fan 13, and the air inlet of the fan 13 is set accordingly to the cavity of the screen cylinder 3. Under the action of the fan 13, the straw on the conveyor belt is sucked into the channel between the cover plate 5 and the screen cylinder 3 through the feed pipe 6. After entering the channel, the straw is adsorbed on the screen cylinder 3 and conveyed.

[0037] The blower 13 is mounted on the bracket 1 via a pad 18. The blower 13 is connected to the air filter 14, and an air outlet pipe 15 is installed on the air filter 14. The air filter 14 is correspondingly arranged with the sieve cylinder 3, and a filter screen is provided between the air filter 14 and the sieve cylinder 3. The filter screen blocks impurities in the straw inside the sieve cylinder 3.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cage-type soil screening machine, characterized in that: Includes a bracket (1), a box (2) installed on the bracket (1), a screen cylinder (3) rotatably connected inside the box (2), a drive assembly (4) for driving the screen cylinder (3) to rotate is also installed on the box (2), a cover plate (5) is fixedly connected to the upper side of the box (2), a feed pipe (6) is installed on one side of the box (2), the outlet of the feed pipe (6) is correspondingly set between the cover plate (5) and the screen cylinder (3), and an exhaust assembly (7) is also installed on the box (2), the exhaust assembly (7) is correspondingly set with the screen cylinder (3).

2. The cage-type soil screening machine according to claim 1, characterized in that: The drive assembly (4) includes a motor (8), which drives a transmission assembly (9), which drives a rotating shaft (10), and a roller (11) is connected on the rotating shaft (10). The roller (11) drives the screen cylinder (3) to rotate.

3. The cage-type soil screening machine according to claim 1, characterized in that: The feeding roller (12) is rotatably connected inside the housing (2). The driving assembly (4) drives the feeding roller (12). The feeding roller (12) includes a roller shaft (12.1). A set of hanging plates (12.2) is provided on the roller shaft (12.1). End plates (12.3) are connected to both ends of the roller shaft (12.1).

4. A cage-type soil screening machine according to claim 1, characterized in that: The exhaust assembly (7) includes a fan (13), which is connected to a filter cylinder (14). An air outlet pipe (15) is installed on the filter cylinder (14). The filter cylinder (14) is correspondingly arranged with the sieve cylinder (3), and a filter screen is provided between the filter cylinder (14) and the sieve cylinder (3).

5. A cage-type soil screening machine according to claim 1 or 4, characterized in that: The sieve cylinder (3) is a cylinder with open sides. A set of leakage holes is provided on the cylinder wall. The two ends of the cylinder are rotatably connected inside the box body (2).

6. A cage-type soil screening machine according to claim 1, characterized in that: The feed pipe (6) includes an arc-shaped pipe (6.1), a transition pipe (6.2) is connected to the arc-shaped pipe (6.1), the transition pipe (6.2) is connected to the end pipe (6.3), and the end pipe (6.3) is provided with a feed port (6.4).

7. A cage-type soil screening machine according to claim 1, characterized in that: Waste pipe (16) is also installed on the bracket (1), and waste pipe (16) is correspondingly arranged on the lower side of the screen cylinder (3).

8. A cage-type soil screening machine according to claim 1, characterized in that: A scraper (17) is also installed inside the box (2), and the scraper (17) is correspondingly arranged on the lower side of the screen cylinder (3).

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