Vibrating screen module and screening machine
By designing an adjustable-amplitude vibrating screen module, the problems of complex structure and non-adjustable vibration amplitude in existing technologies have been solved, achieving efficient screening and low failure rate, which is suitable for garlic harvesting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JUFENG MASCH FACTORY DALIU TOWN NINGJIN COUNTY
- Filing Date
- 2025-05-15
- Publication Date
- 2026-04-17
AI Technical Summary
Existing vibrating screen modules have complex structures, high costs, low screening efficiency, and cannot adjust vibration amplitude, resulting in a high equipment failure rate, especially with poor screening performance under different soil conditions.
The design incorporates an adjustable vibration screen module. By installing a vibration motor and an adjustable eccentric block on the flow guide chamber, combined with an inclined bottom discharge screen and a multi-layer screen structure, the vibration amplitude can be flexibly adjusted and the material can be smoothly discharged.
It improves screening efficiency, reduces equipment failure rate, adapts to screening needs under different soil conditions, and has a simple structure that is easy to maintain.
Smart Images
Figure CN224127839U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of vibration equipment technology, and specifically relates to a vibrating screen module and screening machine for sorting crops such as garlic. Background Technology
[0002] In existing technologies, garlic needs to be collected onto a vibrating screen during harvesting. The screen's vibration separates the garlic. However, existing technologies suffer from several problems: the screening module is complex, costly to manufacture, and doesn't improve screening efficiency. When the equipment runs at high speed, impurities tend to accumulate inside, making waste removal difficult. Furthermore, the complex structure increases the failure rate. The screening amplitude may need to be adjusted based on soil conditions. For example, in sticky soils, where soil adheres more to the garlic, a larger screening amplitude is required, while in sandy soils, a smaller amplitude is needed. However, existing vibrating screening equipment cannot adjust the vibration amplitude, thus failing to achieve these adjustable amplitude adjustments.
[0003] In response to the technical problems mentioned above, the technical problem that urgently needs to be solved by those skilled in the art is: to design a new vibrating screen module and a screening machine using the vibrating screen module, with the aim of improving the screening vibration effect, reducing the equipment failure rate, and adjusting the vibration amplitude according to the actual situation. Summary of the Invention
[0004] In view of the shortcomings of the prior art described above, this utility model proposes a vibrating screen module and a screening machine, which can adjust the amplitude by setting an adjustable screening structure and smoothly discharge materials.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] A vibrating screen module includes a frame, on the top surface of which a primary filter screen and a secondary filter screen are provided; and at the four bottom corners of the frame, there are vibration spring fixing positions.
[0007] The secondary filter screen is provided with a flow guide chamber at its lower part, a flow guide port is provided on the side of the flow guide chamber, and a bottom discharge screen is provided at the bottom of the flow guide chamber. The bottom discharge screen is inclined to the left and right sides, and the height of the left and right sides of the bottom discharge screen is lower than the rest of the parts.
[0008] The flow guide chamber is equipped with a vibration motor and a vibration fixing base. A rotating shaft connected to the vibration motor is provided on the vibration fixing base, and several eccentric blocks are fixed on the rotating shaft. The fixing position and angle of the eccentric blocks are adjustable.
[0009] The primary filter screen is provided with slotted sieve holes, and the secondary filter screen is provided with a number of sieve holes.
[0010] The flow guide chambers are arranged in several parts by partitions, and each flow guide chamber has a flow guide port on its side wall.
[0011] The front side of the flow guide chamber is inclined, and the vibrating motor and several eccentric blocks are all fixed on the front side. This design can increase the front and rear amplitude without affecting the discharge.
[0012] A screening machine employing the above-mentioned vibrating screen module includes a screening frame, on which a support frame is provided, and the vibrating screen module is supported by the support frame and a vibrating spring; a side guide valve is provided on the side of the screening frame and connected to the guide port; an end guide valve is provided at the end of the screening frame, and a guide plate is provided on the top surface of the screening frame in cooperation with the end guide valve.
[0013] The present invention has the following beneficial effects: The present invention discloses a vibrating screen module, which has a primary filter screen and a secondary filter screen on the top surface of the frame; the four corners of the bottom of the frame are provided with vibration spring fixing positions for connection with the screening machine; the lower part of the secondary filter screen is provided with a flow guide chamber; the side of the flow guide chamber is provided with a flow guide port; the bottom discharge screen at the bottom of the flow guide chamber is inclined to the left and right sides; the above structure facilitates the flow of screened materials.
[0014] The flow guide chamber is equipped with a vibration motor and a rotating shaft. Several adjustable eccentric blocks are fixed on the rotating shaft. The amplitude of the vibrating screen module can be adjusted by adjusting the eccentric blocks. Applying this vibrating screen module to a screening machine can improve screening efficiency and enable flexible adjustment of vibration amplitude. This utility model has a simple structure, low failure rate, and can be promoted in the field of garlic harvesting. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0016] Figure 1 Schematic diagram of the bottom three-dimensional structure of the vibrating screen module Figure I ;
[0017] Figure 2 Schematic diagram of the bottom three-dimensional structure of the vibrating screen module Figure II ;
[0018] Figure 3 A bottom view of the vibrating screen module. Figure II ;
[0019] Figure 4 This is a side view of the screening machine.
[0020] In the diagram, 1. Frame, 11. Vibration spring fixing hole, 12. Bottom support beam, 13. Primary filter screen; 2. Front guide chamber, 20. Front side, 21. Front guide port; 3. Vibration motor, 31. Vibration fixing seat, 32. Rotating shaft, 33. Eccentric block; 4. Rear guide chamber, 41. Rear guide port; 5. Bottom discharge screen, 51. Middle fixing beam; 6. Secondary filter screen; 7. Screening rack, 71. Discharge platform, 72. Support frame, 73. Vibration spring, 74. Side guide valve, 75. End guide valve. Detailed Implementation
[0021] The present invention will be further described below through embodiments. Those skilled in the art can refer to the embodiments for implementation, and can also make technical improvements and innovations based on the existing technical solutions.
[0022] Example 1:
[0023] A vibrating screen module, such as Figure 1 , 2 As shown in Figure 3, it includes a frame 1. A primary filter screen 13 and a secondary filter screen 6 are mounted on the top surface of the frame 1. Vibration spring fixing holes 11 are provided at the four corners of the bottom of the frame 1 as fixing points for the vibration springs to be fixed to external vibration springs. The primary filter screen 13 has slotted screen holes. In this embodiment, the slotted screen holes are formed by welding multiple steel rods at intervals. To ensure the stability of the primary filter screen 13, after the multiple steel rods are welded, a bottom support beam 12 is welded to the bottom for support. The secondary filter screen 6 has several circular screen holes.
[0024] The secondary filter screen 13 has a flow guide chamber at its lower part, and a flow guide port is provided on the side of the flow guide chamber. In this embodiment, the flow guide chamber is divided into two parts by a partition, namely a front flow guide chamber 3 and a rear flow guide chamber 4. The front flow guide chamber 3 has a front flow guide port 21 on its left and right sides, and the rear flow guide chamber 4 has a rear flow guide port 41 on its left and right sides. The bottom of the two flow guide chambers is provided with a bottom discharge screen 5, which is inclined to the left and right sides. Figure 1 , 2 As shown, the bottom discharge screen 5 is divided into two parts. A central fixing beam 51 is welded and installed in the middle area below the secondary filter screen 6. The bottom discharge screen 5 is positioned on the left and right sides of the central fixing beam 51 and the bottom surface of the outer side plate of the front guide chamber 3 or the rear guide chamber 4. This fixing method results in a structure where the left and right sides of the bottom discharge screen 5 are lower than the rest of the structure. Since the front guide port 21 and the rear guide port 41 are both located at a lower position, the purpose of this design is to facilitate the discharge of impurities after being screened by the secondary filter screen 6.
[0025] This utility model features a vibration motor 3 and two vibration mounting bases 31 on the front side 30 of the front guide chamber 3. A rotating shaft 32 is mounted on the two vibration mounting bases, and a driven wheel connected to the vibration motor 3 is installed on the rotating shaft 32. Several eccentric blocks 33 are fixed on the rotating shaft 32. Figure 1 As shown, the eccentric block 33 is an arc-shaped structure with an adjustable fixed position and angle. When the angle of the eccentric block 33 at different positions is adjusted, the eccentric force at different positions on the rotating shaft 32 can be adjusted. This adjustment can adjust the vibration amplitude of the entire vibrating screen module.
[0026] Furthermore, in this invention, the front side 30 of the front guide chamber 3 is inclined, and the vibration motor 3 and several eccentric blocks 33 are all fixed on the front side 30. This design can increase the front and rear amplitude without affecting the material discharge.
[0027] Example 2:
[0028] A screening machine employing the above-mentioned vibrating screen module, such as Figure 4 As shown, it includes a screening rack 7, on which a feeding platform 71 and a support frame 72 are provided. The feeding platform 71 is connected to the outside and is used for temporary storage of garlic after harvesting. The vibrating screen module is supported as a whole by the support frame 72 and the vibration spring 73. The side of the screening rack 7 is provided with a side guide valve 74, which is connected to the front guide port 21 and the rear guide port 41 to discharge the impurities after screening.
[0029] The end of the screening rack 7 is provided with an end guide valve 75. In conjunction with the end guide valve 75, a guide plate is provided on the top surface of the screening rack 7. The garlic that has been screened is blocked by the guide plate and discharged into the end guide valve 75.
[0030] In summary, this utility model has a bottom discharge screen 5 at the bottom of the flow guide chamber that is tilted to the left and right sides. This structure facilitates the flow of screened materials to both sides. A vibration motor 3 and a rotating shaft 32 are connected on the front flow guide chamber. Several adjustable eccentric blocks 33 are fixed on the rotating shaft 32. The amplitude of the vibrating screen module can be adjusted by adjusting the matching angle of the eccentric blocks 33, so as to cope with the vibration screening of garlic harvested in different clayey soils.
[0031] Applying this vibrating screen module to a screening machine can improve screening efficiency and also enable flexible adjustment of vibration amplitude. This utility model has a simple structure, low failure rate, and is conducive to its promotion in the garlic harvesting field.
Claims
1. A vibrating screen module characterized by: It includes a frame, on the top surface of which a primary filter screen and a secondary filter screen are provided; and at the bottom of the frame, a vibration spring fixing position is provided. The secondary filter screen is provided with a flow guide chamber at its lower part, a flow guide port is provided on the side of the flow guide chamber, and a bottom discharge screen is provided at the bottom of the flow guide chamber. The bottom discharge screen is inclined to the left and right sides, and the height of the left and right sides of the bottom discharge screen is lower than the rest of the parts. The flow guide chamber is equipped with a vibration motor and a vibration fixing base. A rotating shaft connected to the vibration motor is provided on the vibration fixing base, and several eccentric blocks are fixed on the rotating shaft. The fixing position and angle of the eccentric blocks are adjustable.
2. A vibrating screen module as claimed in claim 1, characterised in that: The primary filter screen is provided with slotted sieve holes, and the secondary filter screen is provided with a number of sieve holes.
3. A vibrating screen module as claimed in claim 1, characterised in that: The flow guide chambers are arranged in several units by partitions, and each flow guide chamber has a flow guide port on its side wall.
4. A vibrating screen module as claimed in claim 1, characterized in that: The front side of the flow guide chamber is inclined, and the vibration motor and several eccentric blocks are all fixed on the front side.
5. A screening machine employing the above vibrating screen module, characterized by: It includes a screening frame, on which a support frame is provided, and the vibrating screen module is supported by the support frame and a vibration spring; a side guide valve is provided on the side of the screening frame and connected to the guide port; an end guide valve is provided at the end of the screening frame.