Straw soil screening machine
By designing a straw sieving machine, which uses a motor to drive the sieving disc to reciprocate, the problem of soil entrainment in straw is solved, and efficient cleaning of straw is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BENGBU ZONGTIAN ENVIRONMENTAL PROTECTION MASCH CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-21
AI Technical Summary
When straw is harvested, the roots are covered with soil, resulting in the straw containing sand and soil, which affects the convenience of processing and feeding livestock.
Design a straw sieving machine that uses a motor to drive the sieving disc to reciprocate. Through the cooperation of the sieve plate and the eccentric wheel, the soil and dust in the sieving disc are shaken off.
It effectively removes soil and dust from straw, ensuring the processing quality and hygiene of the straw.
Smart Images

Figure CN224142806U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of straw screening technology, and in particular to a straw sieving machine. Background Technology
[0002] When harvesting straw in the field, the roots of the straw often have a lot of soil attached. When this soil is bundled together with the straw, the straw contains a lot of sand and soil, making it very inconvenient to process or use as feed for livestock. Utility Model Content
[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a straw sieving machine.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A straw sieving machine includes a support frame, a support frame connected to the support frame, a set of rotating support members connected to the support frame, an inclined sieving disc connected to the set of rotating support members, a fixed frame connected to one side of the support frame, and a drive device connected to the fixed frame. The drive device is used to drive the sieving disc to reciprocate.
[0006] Preferably, the rotating support includes two fixed shafts connected opposite to each other on the upper side of the support frame. A first bearing is sleeved on the outer side of each fixed shaft, and a second bearing is connected to the lower side of each first bearing through a connecting plate. A support shaft is inserted between the two second bearings, and the sieve disc is connected to the upper side of the support shaft.
[0007] Preferably, the fixing frame includes two vertically opposite first U-shaped frames, a base frame is connected to the lower side between the two first U-shaped frames, a driving device is connected to the base frame, an installation rod is connected to the inner side of each first U-shaped frame, a bearing seat is connected to each installation rod, a rotating fixing shaft is inserted between the two bearing seats, eccentric wheels are connected to both ends of the fixing shaft, a fixing ring is sleeved on the outer side of the eccentric wheel, the fixing ring is connected to a connecting rod, and the connecting rod is hinged to the soil screening disc through a hinge seat.
[0008] Preferably, the driving device is a motor, and the motor drives the fixed shaft through a transmission mechanism;
[0009] The transmission mechanism includes a drive wheel, which is connected to the drive shaft of the motor. The drive wheel drives a driven wheel via a transmission belt, and the driven wheel is coaxially connected to the fixed shaft.
[0010] Preferably, the sieve disc includes a rectangular disc with an opening on the lower side and a sieve plate connected to the inner side of the rectangular disc.
[0011] Preferably, the support frame is a U-shaped frame, and the support frame is inclined, with the higher side of the support frame facing the fixing frame.
[0012] The advantages of this utility model are as follows: The straw sieving machine provided by this utility model uses a motor to drive the sieving disc to move back and forth to create vibration, which shakes off the soil and dust carried by the straw in the sieving disc, thus avoiding the straw from being covered with soil and ensuring the quality and hygiene of subsequent straw processing. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the principle structure of a straw sieving machine provided by this utility model;
[0014] Figure 2 This is a structural schematic diagram of the support frame;
[0015] Figure 3 yes Figure 1 Enlarged schematic diagram of part A. Detailed Implementation
[0016] 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.
[0017] 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.
[0018] like Figure 1 As shown, the present invention provides a straw sieving machine, including a support frame 1, a support frame 2 connected to the support frame 1, the support frame 2 being a U-shaped frame, and the support frame 2 being inclined, with the higher side of the support frame 2 facing the fixed frame 5 below.
[0019] A set of rotating support members 3 is connected to the support frame 2. In this embodiment, there are two rotating support members 3. The rotating support member 3 includes two fixed shafts 3.1. The two fixed shafts 3.1 are connected to each other on the upper side of the support frame 2. Since the support frame 2 is set at an inclination, the heights of the two rotating support members 3 are different. A first bearing 3.2 is sleeved on the outside of each fixed shaft 3.1. A second bearing 3.4 is connected to the lower side of each first bearing 3.2 through a connecting plate 3.3. A support shaft 3.5 is inserted between the two second bearings 3.4. A soil screening disc 4 is connected to the upper side of the two support shafts 3.5.
[0020] The sieve plate 4 is a rectangular plate. A sieve plate 4.1 is connected to the inner side of the sieve plate 4. The sieve plate 4.1 divides the sieve plate 4 into an upper placement trough and a lower collection trough. Dust is sieved out through the sieve plate 4.1, and soil falls into the collection trough through the sieve holes of the sieve plate 4.1. An opening is provided on the lower side of the rectangular plate. Since the two support shafts 3.5 are at different heights, the sieve plate 4 is connected to the two support shafts 3.5. Therefore, the sieve plate 4 is set at an angle, and the higher side of the sieve plate 4 is close to the lower fixing frame 5.
[0021] A fixing frame 5 is connected to one side of the support frame 1. The fixing frame 5 includes two vertically opposite first U-shaped frames 5.1, both of which are connected to one side of the support frame 1. A base frame 5.2 is connected to the lower side between the two first U-shaped frames 5.1. A mounting rod 5.4 is connected to the inner side of each first U-shaped frame 5.1, and a bearing seat 5.5 is connected to each mounting rod 5.4. A rotating fixing shaft 5.6 is inserted between the two bearing seats 5.5. Eccentric wheels 5.7 are connected to both ends of the fixing shaft 5.6. A fixing ring 5.8 is sleeved on the outer side of the eccentric wheel 5.7, and an annular limiting plate is connected to the inner side of the fixing ring 5.8. An annular groove is provided on the outer side of the eccentric wheel 5.7, and an annular limiting plate is provided in the annular groove to prevent the fixing ring 5.8 from falling off. The fixing ring 5.8 is connected to the connecting rod 5.9. Two hinge seats are connected to one side of the sieve plate 4. The hinge seats are existing structures. The connecting rod 5.9 is hinged to the hinge seats. The rotation of the fixed shaft 5.6 drives the eccentric wheel 5.7 to rotate. The eccentric wheel 5.7 drives the sieve plate 4 to move back and forth through the fixing ring 5.8 and the connecting rod 5.9 to filter the soil and dust carried by the straw in the sieve plate 4. The back and forth movement of the sieve plate 4 can drive the straw to slide towards the opening, so that the straw after sieving can be discharged from the opening.
[0022] A drive device 6 is connected to the base frame 5.2. The drive device 6 is a motor. The motor drives the fixed shaft 5.6 through a transmission mechanism. The transmission mechanism includes a drive wheel 6.1, which is connected to the drive shaft of the motor. The drive wheel 6.1 drives the driven wheel 6.3 through a transmission belt 6.2. The driven wheel 6.3 is coaxially connected to the fixed shaft 5.6. In this embodiment, both the drive wheel 6.1 and the driven wheel 6.3 are pulleys, and the transmission belt 6.2 is a belt.
[0023] The motor drives the drive wheel 6.1 to rotate, which in turn drives the driven wheel 6.3 via the transmission belt 6.2. The driven wheel 6.3 drives the fixed shaft 5.6 to rotate, which in turn drives the two eccentric wheels 5.7 to rotate. The eccentric wheels 5.7 drive the sieve disc 4 to move back and forth via the fixed ring 5.8 and the connecting rod 5.9, shaking off the soil mixed with the straw in the sieve disc 4, thus preventing the straw from being mixed with soil and ensuring the quality and hygiene of the subsequent processing of the straw.
[0024] 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 straw soil screening machine characterized by: It includes a support frame (1), a support frame (2) connected to the support frame (1), a set of rotating support members (3) connected to the support frame (2), an inclined sieve disc (4) connected to the set of rotating support members (3), a fixed frame (5) connected to one side of the support frame (1), and a drive device (6) connected to the fixed frame (5). The drive device (6) is used to drive the sieve disc (4) to reciprocate.
2. The straw soil screening machine according to claim 1, characterized in that: The rotating support (3) includes two fixed shafts (3.1), which are connected to each other on the upper side of the support frame (2). A first bearing (3.2) is sleeved on the outside of each fixed shaft (3.1), and a second bearing (3.4) is connected to the lower side of each first bearing (3.2) through a connecting plate (3.3). A support shaft (3.5) is inserted between the two second bearings (3.4), and the sieve disc (4) is connected to the upper side of the support shaft (3.5).
3. The straw soil screening machine according to claim 1, characterized in that: The fixing frame (5) includes two vertically opposite first U-shaped frames (5.1), a base frame (5.2) is connected to the lower side between the two first U-shaped frames (5.1), a driving device (6) is connected to the base frame (5.2), an installation rod (5.4) is connected to the inner side of each first U-shaped frame (5.1), a bearing seat (5.5) is connected to each installation rod (5.4), a rotating fixing shaft (5.6) is inserted between the two bearing seats (5.5), an eccentric wheel (5.7) is connected to both ends of the fixing shaft (5.6), a fixing ring (5.8) is sleeved on the outer side of the eccentric wheel (5.7), the fixing ring (5.8) is connected to a connecting rod (5.9), and the connecting rod (5.9) is hinged to the sieve disc (4) through a hinge seat.
4. The straw soil screening machine according to claim 3, characterized in that: The driving device (6) is a motor, which drives the fixed shaft (5.6) through a transmission mechanism. The transmission mechanism includes a drive wheel (6.1), which is connected to the drive shaft of the motor. The drive wheel (6.1) drives the driven wheel (6.3) through a transmission belt (6.2). The driven wheel (6.3) is coaxially connected to the fixed shaft (5.6).
5. The straw soil screening machine according to claim 1, characterized in that: The sieve disc (4) is a rectangular disc with an opening on the lower side. A sieve plate (4.1) is connected to the inner side of the sieve disc (4).
6. The straw soil screening machine according to claim 1, characterized in that: The support frame (2) is a U-shaped frame, and the support frame (2) is set at an angle, with the higher side of the support frame (2) facing the fixing frame (5).