Nut grading vibration screening device

Abstract

The utility model belongs to the field of screening devices, and particularly relates to a nut grading vibration screening device which comprises a shell, four evenly-distributed connecting rods are slidably connected to the interior of the shell, three linearly-distributed grading screens are fixedly connected to the outer sides of the connecting rods, and sealing frames are fixedly connected to the outer sides of the grading screens. A vibration mechanism is arranged at the upper end of the shell, a feeding hopper is fixedly connected to the middle of the upper end of the shell, and a dust removal box is fixedly connected to the lower portion of the right end of the shell. The camshaft, the arc block, the spring and other structures are additionally arranged on the shell, the camshaft can be driven by the motor to rotate in the using process, and the vibrating frame can be driven by the arc block to move up and down in the rotating process of the camshaft; and the vibrating frame can drive the classifying screen to vibrate through the connecting rod in the up-down moving process, so that the vibration amplitude can be effectively improved, and the screening efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screening devices, in particular to a vibrating screening device for nut grading. Background Art

[0002] In the process of processing nuts, it is necessary to grade the size of the nuts. After grading, the quality of nut frying can be effectively improved, avoiding small nuts from being overcooked and large nuts from being undercooked. However, in the existing screening devices, during the screening process, the vibrating screen is driven by a vibrating motor to vibrate, and the amplitude of vibration is relatively low, resulting in a low screening efficiency. Moreover, during the grading process, a large amount of dust and impurities are contained inside the nuts, affecting the screening quality. Therefore, the existing technology needs to be improved. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a vibrating screening device for nut grading, which solves the problems of low screening efficiency and easy dust scattering inside the device.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: A vibrating screening device for nut grading, including a housing. Four uniformly distributed connecting rods are slidably connected inside the housing. Three grading screens distributed in a straight line are fixedly connected to the outer sides of the connecting rods. A sealing frame is fixedly connected to the outer sides of the grading screens. A vibrating mechanism is arranged at the upper end of the housing. A feed hopper is fixedly connected to the middle of the upper end of the housing. A dust removal box is fixedly connected to the lower part of the right end of the housing. A box door is installed at the right end of the dust removal box. A negative pressure pump is fixedly installed at the upper end of the dust removal box. The vibrating mechanism includes a vibrating frame. The upper ends of the four connecting rods are commonly fixedly connected to the vibrating frame. An arc block is fixedly connected to the upper end of the vibrating frame. A fixed frame is fixedly connected to the upper end of the housing. A camshaft is installed inside the fixed frame through a bearing. A driven wheel is fixedly connected to the outer side of the camshaft. A belt is sleeved on the outer side of the driven wheel. A motor is fixedly installed at the upper end of the housing through a mounting frame. A driving wheel is fixedly connected to the outer side of the output shaft of the motor. Springs are arranged on the outer sides of the connecting rods. The belt can drive two driven wheels to rotate simultaneously. The camshaft is slidably connected to the arc block. The driving wheel is engaged with the belt. The camshaft can drive the vibrating frame to move up and down repeatedly through the arc block. One end of the spring is fixedly connected to the vibrating frame, and the other end of the spring is fixedly connected to the housing. The spring can drive the vibrating frame to vibrate through its elastic force.

[0005] Preferably, the hole diameters of the grading screens gradually decrease from top to bottom. The sealing frame is slidably connected to the inner wall of the housing. The sealing frame can seal the connection between the grading screen and the housing.

[0006] Preferably, a square frame is installed inside the dust removal box through bolts, and a dust collection bag is fixedly connected inside the square frame. A one-way cover is hinged inside the dust removal box, and the one-way cover can prevent the adsorbed dust from entering the inside of the housing.

[0007] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0008] 1. By adding structures such as a camshaft, an arc block, and a spring to the housing, during use, the motor can drive the camshaft to rotate. During the rotation of the camshaft, the arc block can drive the vibration frame to move up and down, and during the up and down movement of the vibration frame, the grading screen can be driven to vibrate through the connecting rod, thereby effectively increasing the vibration amplitude and improving the screening efficiency.

[0009] 2. By adding structures such as a dust removal box, a negative pressure pump, and a dust collection bag to the housing, during use, after the gas inside the dust removal box is sucked out by the negative pressure pump, the dust can be filtered by the dust collection bag, so that the dust and sundries can be effectively collected inside the dust collection bag, and the dust between the nuts can be effectively reduced. Description of the Drawings

[0010] Figure 1 is a three-dimensional view of the overall structure of the present utility model Figure 1 ;

[0011] Figure 2 is a three-dimensional view of the overall structure of the present utility model Figure 2 ;

[0012] Figure 3 is the Figure 1 three-dimensional cross-sectional view of the present utility model;

[0013] Figure 4 is the Figure 1 front view cross-sectional enlarged view of the dust removal box of the present utility model;

[0014] Figure 5 is the Figure 3 enlarged view of the structure of part A of the present utility model.

[0015] In the figure: 1. Housing; 2. Connecting rod; 3. Grading screen; 4. Sealing frame; 5. Vibration mechanism; 6. Feeding hopper; 7. Dust removal box; 8. Door; 9. Negative pressure pump; 10. Square frame; 11. Dust collection bag; 12. One-way cover; 51. Vibration frame; 52. Arc block; 53. Fixed frame; 54. Camshaft; 55. Driven wheel; 56. Belt; 57. Spring; 58. Motor; 59. Driving wheel. Detailed Embodiments

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0017] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 A nut grading vibration screening device, including a housing 1, four uniformly distributed connecting rods 2 are slidably connected inside the housing 1, three grading sieves 3 distributed in a straight line are fixedly connected to the outside of the connecting rod 2, a sealing frame 4 is fixedly connected to the outside of the grading sieve 3, a vibration mechanism 5 is arranged at the upper end of the housing 1, a feed hopper 6 is fixedly connected to the middle of the upper end of the housing 1, a dust removal box 7 is fixedly connected to the lower part of the right end of the housing 1, a box door 8 is installed at the right end of the dust removal box 7, and a negative pressure pump 9 is fixedly installed at the upper end of the dust removal box 7.

[0018] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 The hole diameter of the grading sieve 3 gradually decreases from top to bottom. The sealing frame 4 is slidably connected to the inner wall of the housing 1. The sealing frame 4 can seal the connection between the grading sieve 3 and the housing 1. A square frame 10 is installed inside the dust removal box 7 by bolts, a dust collection bag 11 is fixedly connected inside the square frame 10, and a one-way cover 12 is hinged inside the dust removal box 7. The one-way cover 12 can prevent the adsorbed dust from entering the inside of the housing 1.

[0019] Please refer to Figure 1 、 Figure 3 、 Figure 5, the vibration mechanism 5 includes a vibration frame 51. The upper ends of the four connecting rods 2 are fixedly connected to the vibration frame 51 together. The upper end of the vibration frame 51 is fixedly connected to an arc block 52. The upper end of the outer shell 1 is fixedly connected to a fixing frame 53. A camshaft 54 is installed inside the fixing frame 53 through a bearing. A driven wheel 55 is fixedly connected to the outer side of the camshaft 54. A belt 56 is sleeved on the outer side of the driven wheel 55. The upper end of the outer shell 1 is fixedly installed with a motor 58 through a mounting frame. A driving wheel 59 is fixedly connected to the outer side of the output shaft of the motor 58. A spring 57 is arranged on the outer side of the connecting rod 2. The belt 56 can drive two driven wheels 55 to rotate simultaneously. The camshaft 54 is slidably connected to the arc block 52. The driving wheel 59 meshes with the belt 56. The camshaft 54 can drive the vibration frame 51 to move up and down repeatedly through the arc block 52. One end of the spring 57 is fixedly connected to the vibration frame 51, and the other end of the spring 57 is fixedly connected to the outer shell 1. The spring 57 can drive the vibration frame 51 to vibrate through its elastic force.

[0020] The specific implementation process of the present utility model is as follows: When in use, put the raw materials into the inside of the feed hopper 6, start the motor 58, the motor 58 drives the driving wheel 59 to rotate, the driving wheel 59 drives the driven wheel 55 to rotate through the belt 56, and the driven wheel 55 can drive the camshaft 54 to rotate. During the rotation of the camshaft 54, it can drive the vibration frame 51 to move up and down reciprocally through the arc block 52. During the movement of the vibration frame 51, it can drive a plurality of grading sieves 3 to vibrate. During the vibration of the grading sieves 3, the raw materials inside can be screened.

[0021] During the screening process, start the negative pressure pump 9. After the negative pressure pump 9 sucks out the gas inside the dust removal box 7, suction is generated inside the dust removal box 7. The suction is transmitted to the inside of the outer shell 1, and the dust inside the outer shell 1 is sucked into the inside of the dust collection bag 11 inside the dust removal box 7, and then the dust collection inside the outer shell 1 can be completed.

[0022] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A nut grading vibration screening device, comprising a housing (1), characterized in that: The inside of the shell (1) is slidably connected with four evenly distributed connecting rods (2), the outer sides of the connecting rods (2) are fixedly connected with three linearly distributed grading screens (3), the outer sides of the grading screens (3) are fixedly connected with a sealing frame (4), the upper end of the shell (1) is provided with a vibration mechanism (5), the middle part of the upper end of the shell (1) is fixedly connected with a feed hopper (6), the lower right end of the shell (1) is fixedly connected with a dust removal box (7), the right end of the dust removal box (7) is equipped with a box door (8), the upper end of the dust removal box (7) is fixedly equipped with a negative pressure pump (9), the vibration mechanism (5) comprises a vibration frame (51), the upper ends of the four connecting rods (2) are fixedly connected with the vibration frame (51), the upper end of the vibration frame (51) is fixedly connected with an arc block (52), The upper end of the housing (1) is fixedly connected to a fixing frame (53), a camshaft (54) is installed inside the fixing frame (53) via a bearing, a driven wheel (55) is fixedly connected to the outer side of the camshaft (54), a belt (56) is sleeved on the outer side of the driven wheel (55), a motor (58) is fixedly installed on the upper end of the housing (1) via a mounting frame, a driving wheel (59) is fixedly connected to the outer side of the output shaft of the motor (58), a spring (57) is arranged on the outer side of the connecting rod (2), the camshaft (54) is slidably connected to the circular arc block (52), the driving wheel (59) is meshed with the belt (56), one end of the spring (57) is fixedly connected to the vibration frame (51), and the other end of the spring (57) is fixedly connected to the housing (1).

2. The nut grading vibration screening device according to claim 1, characterized in that: The diameter of the holes of the grading screen (3) gradually decreases from top to bottom, and the sealing frame (4) is slidably connected to the inner wall of the outer shell (1).

3. The nut grading vibration screening device according to claim 1, characterized in that: A square frame (10) is installed inside the dust removal box (7) by means of bolts, a dust collecting bag (11) is fixedly connected inside the square frame (10), and a one-way cover (12) is hinged inside the dust removal box (7).

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