An eccentric vibrating screen device for crushing plant raw materials

Abstract

The utility model relates to an eccentric vibrating screen device for plant raw material crushing belongs to plant raw material processing technical field, the device includes base, sieve box, sieve plate, support subassembly, eccentric wheel subassembly and drive assembly, the sieve box is installed above the base, the support subassembly is installed four groups, and is fixedly connected through the support subassembly between sieve box and base, the eccentric wheel subassembly is installed at sieve box bottom one side, the drive assembly is fixedly installed above the base, and drive assembly and eccentric wheel subassembly are linked to set up, the below fixed mounting of sieve box front end has the discharge hopper, and the discharge hopper is communicated with the bottom of sieve box setting, the sieve plate is installed in the inside of sieve box, and sieve plate is installed two, and sieve plate is in the inside of sieve box and is set up obliquely to the discharge hopper, the device makes the complicated movement track of plant raw material on the sieve plate through eccentric wheel subassembly, increases the contact of raw material and sieve hole, can efficiently carry out the screening operation to plant raw material.

Description

Technical Field

[0001] This utility model relates to the field of plant raw material processing technology, and in particular to an eccentric vibrating screen for crushing plant raw materials. Background Technology

[0002] Plant raw material crushing technology is mainly used in food processing, agriculture, pharmaceuticals and other fields. It achieves physical crushing of raw materials through mechanical devices. Eccentric vibrating screening is a technology that uses eccentric mechanisms to generate vibration to screen materials. It is usually composed of a screen box, eccentric vibrator, motor, base and support device. In the current plant raw material processing industry, the screening process after crushing is a key step to ensure the quality of raw materials and the efficiency of subsequent processing.

[0003] Existing screening devices mostly use linear or circular vibration, resulting in a relatively simple movement trajectory of materials on the screen surface. Plant materials are prone to accumulation and clogging of the screen holes. For plant materials with high moisture content or rich fiber content, the accumulation problem is more serious, leading to low screening output per unit time and making it difficult to accurately adapt to the particle size requirements of different plant materials.

[0004] Therefore, this utility model proposes an eccentric vibrating screen for crushing plant raw materials. Utility Model Content

[0005] Therefore, in order to overcome the common problem that eccentric vibrating screens used for crushing plant materials adopt linear or circular vibration, the movement trajectory of the material on the screen surface is relatively simple, and plant materials are prone to accumulation and clogging of screen holes. For plant materials with high water content or rich fiber content, the accumulation problem is more serious, resulting in low screening output per unit time and difficulty in accurately adapting to the particle size requirements of different plant materials.

[0006] The technical solution of this utility model is as follows: an eccentric vibrating screening device for crushing plant raw materials, comprising a base, a screen box, a screen plate, a support assembly, an eccentric wheel assembly, and a drive assembly. The screen box is inclinedly installed above the base. Four sets of support assemblies are installed, and the screen box and the base are fixedly connected by the support assemblies. The eccentric wheel assembly is installed on one side of the bottom of the screen box. The drive assembly is fixedly installed above the base, and the drive assembly and the eccentric wheel assembly are linked. A discharge hopper is fixedly installed below the front end of the screen box, and the discharge hopper is connected to the bottom of the screen box. Two screen plates are installed inside the screen box, and the screen plates are inclined towards the discharge hopper inside the screen box.

[0007] Preferably, the size of the screen holes on the two screen plates decreases from top to bottom, and a cover plate is fixedly installed on the top of the screen box, with a feed inlet on the cover plate.

[0008] Preferably, a connecting lug is fixedly installed below the sieve plate, and the connecting lug is provided with a threaded hole. Connecting bolts are movably installed through both sides of the sieve box, and the connecting bolts are correspondingly provided with the threaded holes. The connecting bolts are threadedly connected to the connecting lugs.

[0009] Preferably, a rubber strip is fixedly installed on the outside of the sieve plate, and the rubber strip is arranged along the edge of the sieve plate and fits against the inner wall of the sieve box.

[0010] Preferably, the screen box has two slag discharge ports at its front end, and the two slag discharge ports are located on one side of the front end of the screen plate. A slag discharge plate is installed on one side of the screen box, and the slag discharge plate is corresponding to the slag discharge ports. The slag discharge plate is inserted into the screen box.

[0011] Preferably, the support assembly includes a connecting seat, a column, a shock-absorbing spring, and a raised column. The column is fixedly installed above the base, the connecting seat is fixedly installed on one side of the bottom of the screen box, the shock-absorbing spring is installed between the connecting seat and the column, and the two ends of the shock-absorbing spring abut against the connecting seat and the column respectively. The raised column is fixedly installed at the lower end of the connecting seat and the upper end of the column, and the raised column is inserted into the two ends of the shock-absorbing spring.

[0012] Preferably, the drive assembly includes a servo motor, a drive wheel, a driven wheel, and a belt. The servo motor is fixedly mounted above the base. The drive wheel is connected to the output end of the servo motor. The driven wheel is connected to one end of the eccentric wheel assembly. The belt is installed between the drive wheel and the driven wheel, and the belt is connected to both the drive wheel and the driven wheel in a driving connection.

[0013] The beneficial effects of this utility model are: 1. In use, the eccentric vibrating screening device for crushing plant raw materials works by setting up a screen plate, eccentric wheel assembly and drive assembly. The plant raw materials fall onto the upper screen plate. Due to the inclined setting of the screen plate, the raw materials will roll along the screen plate under the combined action of gravity and vibration. During the movement, the smaller particles of the raw materials will fall through the screen holes onto the lower screen plate for further screening. The drive assembly drives the eccentric wheel assembly to rotate. The rotation of the eccentric wheel assembly will cause the screen box to vibrate eccentrically, causing the plant raw materials to roll and move continuously on the screen plate, increasing the contact opportunity between the raw materials and the screen holes, and greatly improving the screening efficiency and quality. 2. When using this eccentric vibrating screen for crushing plant raw materials, the screen plate is securely installed inside the screen box by means of connecting bolts, connecting ears, slag discharge port and slag discharge plate. The connecting ears under the screen plate are connected to the screen box by connecting bolts. At least two screen plates are installed. According to the characteristics of different plant raw materials and screening requirements, the screen plates can be replaced or maintained by simply unscrewing the connecting bolts. The screen plates can be easily removed from the screen box and fall to one side of the slag discharge port under the action of the raw material's own gravity. The slag discharge plate can be removed to open the slag discharge port, so as to facilitate the timely discharge of impurities and large particles generated during the screening process and ensure the continuous and stable operation of the screening. 3. When using this eccentric vibrating screen for crushing plant raw materials, the damping springs in the support components can effectively buffer the impact force generated when the screen box vibrates, reduce the impact on the base and surrounding equipment, and extend the service life of the equipment. 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 The diagram shown is a three-dimensional structural schematic of this utility model; Figure 2 The diagram shown is a perspective view of the connection between the sieve plate and the sieve box of this utility model. Figure 3 The image shown is a perspective view of the connection between the connecting ear and the sieve plate of this utility model. Figure 4 The diagram shown illustrates the connection relationship between the servo motor, driving wheel, and driven wheel of this utility model. Figure 5 The diagram shows the connection relationship between the connecting seat, column, and shock-absorbing spring of this utility model.

[0016] Explanation of reference numerals in the attached drawings: 1. Base; 2. Screen box; 3. Box cover plate; 4. Feed inlet; 5. Screen plate; 6. Slag discharge plate; 7. Discharge hopper; 8. Support assembly; 801. Connecting seat; 802. Column; 803. Shock-absorbing spring; 804. Protruding column; 9. Eccentric wheel assembly; 10. Drive assembly; 1001. Servo motor; 1002. Drive wheel; 1003. Driven wheel; 1004. Belt; 11. Connecting bolt; 12. Slag discharge port; 13. Rubber strip; 14. Connecting lug; 15. Threaded hole. 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 embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0019] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0020] Please see Figures 1-5 This utility model provides a technical solution: an eccentric vibrating screening device for crushing plant raw materials, including a base 1, a screen box 2, a screen plate 5, a support assembly 8, an eccentric wheel assembly 9, and a drive assembly 10. The screen box 2 is installed at an incline above the base 1. Four sets of support assemblies 8 are installed, and the screen box 2 and the base 1 are fixedly connected by the support assemblies 8. The eccentric wheel assembly 9 is installed on one side of the bottom of the screen box 2. The drive assembly 10 is fixedly installed above the base 1, and the drive assembly 10 and the eccentric wheel assembly 9 are linked. A discharge hopper 7 is fixedly installed below the front end of the screen box 2, and the discharge hopper 7 is connected to the bottom of the screen box 2. Two screen plates 5 are installed inside the screen box 2, and the screen plates 5 are inclined towards the discharge hopper 7 inside the screen box 2. The screen hole size of the two screen plates 5 decreases from top to bottom. A box cover plate 3 is fixedly installed on the top of the screen box 2, and a feed inlet 4 is provided on the box cover plate 3.

[0021] After the plant material enters the screen box 2 through the feed inlet 4, it falls onto the upper screen plate 5. Due to the inclined setting of the screen plate 5, the material will roll along the screen plate 5 under the combined action of gravity and vibration. During the movement, the smaller particles of the material will fall through the screen holes onto the lower screen plate 5 for further screening. The screened plant material is discharged from the discharge hopper 7. The drive assembly 10 is started to drive the eccentric wheel assembly 9 to rotate. The rotation of the eccentric wheel assembly 9 will cause the screen box 2 to vibrate eccentrically. This vibration mode can make the movement trajectory of the plant material on the screen plate 5 more complex and diverse, and screen the crushed plant material faster.

[0022] A connecting lug 14 is fixedly installed below the sieve plate 5. A threaded hole 15 is provided on the connecting lug 14. A connecting bolt 11 is movably installed through both sides of the sieve box 2. The connecting bolt 11 is correspondingly set with the threaded hole 15. The connecting bolt 11 is threadedly connected to the connecting lug 14.

[0023] The connecting lug 14 below the sieve plate 5 is threadedly connected to the sieve box 2 via the connecting bolt 11, so that the sieve plate 5 can be stably installed inside the sieve box 2, ensuring that the sieve plate 5 will not shake or shift during the screening process, thereby ensuring the stability of the screening effect. Through the threaded connection, when the sieve plate 5 needs to be replaced or maintained, simply unscrew the connecting bolt 11 to easily remove the sieve plate 5 from the sieve box 2.

[0024] A rubber strip 13 is fixedly installed on the outside of the sieve plate 5, and the rubber strip 13 is set along the edge of the sieve plate 5 and fits against the inner wall of the sieve box 2.

[0025] The rubber strip 13 on the outside of the screen plate 5 fits against the inner wall of the screen box 2, which can not only seal the material and prevent raw material leakage, but also reduce the collision and wear between the screen plate 5 and the screen box 2 to a certain extent.

[0026] The screen box 2 is provided with a slag discharge port 12 at the front end. There are two slag discharge ports 12, and the two slag discharge ports 12 are located on one side of the front end of the screen plate 5. A slag discharge plate 6 is installed on one side of the screen box 2, and the slag discharge plate 6 is corresponding to the slag discharge port 12. The slag discharge plate 6 is inserted into the screen box 2.

[0027] Larger particles of raw material will remain on the upper sieve plate 5 and fall to one side of the slag discharge port 12 under their own gravity. The slag discharge plate 6 is removed and the slag discharge port 12 is opened to discharge the plant material remaining on the sieve plate 5 through the slag discharge port 12.

[0028] The support assembly 8 includes a connecting seat 801, a column 802, a shock-absorbing spring 803, and a protruding column 804. The column 802 is fixedly installed above the base 1. The connecting seat 801 is fixedly installed on one side of the bottom of the screen box 2. The shock-absorbing spring 803 is installed between the connecting seat 801 and the column 802, and the two ends of the shock-absorbing spring 803 abut against the connecting seat 801 and the column 802 respectively. The protruding column 804 is fixedly installed at the lower end of the connecting seat 801 and the upper end of the column 802, and the two ends of the protruding column 804 are inserted into the shock-absorbing spring 803.

[0029] During the operation of the screening device, the screen box 2 will generate a certain amount of vibration. The design of the support component 8 can effectively cope with this vibration. The damping spring 803 plays a buffering role between the connecting seat 801 and the column 802. When the screen box 2 vibrates, the damping spring 803 will undergo elastic deformation, absorbing and dispersing the vibration energy, reducing the transmission of vibration to the base 1, thereby reducing the noise and shaking generated by the entire device during operation and improving the stability of the device operation. The plug-in design of the protruding column 804 and the two ends of the damping spring 803 ensures that the damping spring 803 will not shift or fall off during operation, further enhancing the reliability of the support component 8.

[0030] The drive assembly 10 includes a servo motor 1001, a drive pulley 1002, a driven pulley 1003, and a belt 1004. The servo motor 1001 is fixedly mounted on the top of the base 1. The drive pulley 1002 is connected to the output end of the servo motor 1001. The driven pulley 1003 is connected to one end of the eccentric wheel assembly 9. The belt 1004 is installed between the drive pulley 1002 and the driven pulley 1003, and the belt 1004 is connected to the drive pulley 1002 and the driven pulley 1003 in a transmission connection.

[0031] When the servo motor 1001 in the drive assembly 10 is started, the drive wheel 1002 rotates accordingly. The drive wheel 1002 and the driven wheel 1003 are connected by a belt 1004. The belt 1004 drives the driven wheel 1003 to rotate, thereby making the eccentric wheel assembly 9 run.

[0032] Working principle: See Figure 2 and Figure 3 The connecting lug 14 below the screen plate 5 is threadedly connected to the screen box 2 via the connecting bolt 11, so that the screen plate 5 can be installed in the screen box 2 at an angle and stably. The rubber strip 13 on the outside of the screen plate 5 fits against the inner wall of the screen box 2, which can play a sealing role and prevent raw material leakage. See Figure 1 , Figure 2 and Figure 4As shown, after the plant material enters the screen box 2 through the feed inlet 4, it falls onto the upper screen plate 5. Due to the inclined setting of the screen plate 5, the material will move along the screen plate 5 towards the discharge hopper 7 under the combined action of gravity and vibration. During the movement, the smaller particles of the material will fall through the screen holes onto the lower screen plate 5 for further screening. The servo motor 1001 in the drive assembly 10 is started, and the drive wheel 1002 rotates accordingly. The driven wheel 1003 is driven to rotate through the belt 1004, which in turn causes the eccentric wheel assembly 9 to rotate. The rotation of the eccentric wheel assembly 9 will cause the screen box 2 to vibrate eccentrically. This vibration mode can make the movement trajectory of the plant material on the screen plate 5 more complex and diverse. The larger particles of the material will remain on the upper screen plate 5. The screened plant material is discharged from the discharge hopper 7. See Figure 1 and Figure 2 As shown, larger particles of raw material will remain on the upper sieve plate 5 and fall to one side of the slag discharge port 12 under the action of the raw material's own gravity. Remove the slag discharge plate 6 and open the slag discharge port 12 to discharge the plant material remaining on the sieve plate 5 through the slag discharge port 12. See Figure 1 and Figure 5 As shown, the damping spring 803 acts as a buffer between the connecting seat 801 and the column 802. When the screen box 2 vibrates, the damping spring 803 will undergo elastic deformation to absorb and disperse vibration energy, reduce the transmission of vibration to the base 1, thereby reducing the noise and shaking generated by the entire device during operation and improving the stability of the device operation.

[0033] It should be noted that the aforementioned servo motor 1001 can be powered using existing operating techniques, whether by using a power supply unit or an external wire. These are all conventional operating techniques and will not be described in detail here.

[0034] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An eccentric vibrating screening device for crushing plant raw materials, comprising a base (1), a screen box (2), a screen plate (5), a support assembly (8), an eccentric wheel assembly (9), and a drive assembly (10), characterized in that: The screen box (2) is installed at an angle above the base (1). Four sets of support components (8) are installed, and the screen box (2) and the base (1) are fixedly connected by the support components (8). The eccentric wheel assembly (9) is installed on one side of the bottom of the screen box (2). The drive assembly (10) is fixedly installed above the base (1), and the drive assembly (10) and the eccentric wheel assembly (9) are linked. A discharge hopper (7) is fixedly installed below the front end of the screen box (2), and the discharge hopper (7) is connected to the bottom of the screen box (2). The screen plate (5) is installed inside the screen box (2). There are two screen plates (5), and the screen plates (5) are installed at an angle towards the discharge hopper (7) inside the screen box (2).

2. The eccentric vibrating screen for crushing plant raw materials according to claim 1, characterized in that: The size of the sieve holes of the two sieve plates (5) decreases from top to bottom. A box cover plate (3) is fixedly installed on the top of the sieve box (2), and a feed inlet (4) is provided on the box cover plate (3).

3. The eccentric vibrating screen for crushing plant raw materials according to claim 1, characterized in that: A connecting lug (14) is fixedly installed below the sieve plate (5). A threaded hole (15) is provided on the connecting lug (14). A connecting bolt (11) is movably installed on both sides of the sieve box (2). The connecting bolt (11) is correspondingly provided with the threaded hole (15). The connecting bolt (11) is threadedly connected to the connecting lug (14).

4. An eccentric vibrating screen for crushing plant raw materials according to claim 1, characterized in that: A rubber strip (13) is fixedly installed on the outside of the sieve plate (5), and the rubber strip (13) is set along the edge of the sieve plate (5). The rubber strip (13) is in contact with the inner wall of the sieve box (2).

5. An eccentric vibrating screen for crushing plant raw materials according to claim 1, characterized in that: The screen box (2) is provided with a slag discharge port (12) at the front end. There are two slag discharge ports (12), and the two slag discharge ports (12) are located on one side of the front end of the screen plate (5). A slag discharge plate (6) is installed on one side of the screen box (2), and the slag discharge plate (6) is correspondingly set with the slag discharge port (12). The slag discharge plate (6) is inserted into the screen box (2).

6. An eccentric vibrating screen for crushing plant raw materials according to claim 1, characterized in that: The support assembly (8) includes a connecting seat (801), a column (802), a shock-absorbing spring (803), and a protruding column (804). The column (802) is fixedly installed above the base (1). The connecting seat (801) is fixedly installed on one side of the bottom of the screen box (2). The shock-absorbing spring (803) is installed between the connecting seat (801) and the column (802), and the two ends of the shock-absorbing spring (803) abut against the connecting seat (801) and the column (802) respectively. The protruding column (804) is fixedly installed at the lower end of the connecting seat (801) and the upper end of the column (802), and the two ends of the protruding column (804) are inserted into the shock-absorbing spring (803).

7. An eccentric vibrating screen for crushing plant raw materials according to claim 1, characterized in that: The drive assembly (10) includes a servo motor (1001), a drive wheel (1002), a driven wheel (1003), and a belt (1004). The servo motor (1001) is fixedly installed above the base (1). The drive wheel (1002) is connected to the output end of the servo motor (1001). The driven wheel (1003) is connected to one end of the eccentric wheel assembly (9). The belt (1004) is installed between the drive wheel (1002) and the driven wheel (1003), and the belt (1004) is connected to the drive wheel (1002) and the driven wheel (1003) in a transmission connection.

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