Dust removal device for pulverizer

Abstract

The dust removal device comprises a main body, a first rotating shaft and a second rotating shaft which are arranged in parallel are rotatably mounted in the main body, crushing rollers are fixedly arranged on the first rotating shaft and the second rotating shaft, a motor is fixedly arranged on the main body, and the output end of the motor is fixedly connected with the first rotating shaft; one end of the first rotating shaft penetrates through the main body and is fixedly sleeved with a first gear, the second rotating shaft is fixedly sleeved with a second gear, and the second gear is meshed with the first gear; a sieve plate is arranged below the crushing roller and slidably connected with the main body, an annular plate is fixedly arranged at the bottom of the sieve plate, racks are symmetrically and fixedly arranged in the annular plate, a third gear is rotationally arranged in the main body, the third gear is an incomplete gear and meshed with the racks, and a transmission assembly is arranged between the third gear and the second rotating shaft; the main body is further provided with a dust suction assembly for sucking dust. The crushing and screening of raw materials can be completed by one power source, and the automation degree is high.

Description

Technical Field

[0001] This utility model relates to the field of dust removal devices, and specifically to a dust removal device for a crusher. Background Technique

[0002] A crusher is a machine that crushes large-sized solid raw materials into required sizes. The crusher consists of devices such as coarse crushing, fine crushing, and pneumatic conveying, and achieves the purpose of the crusher in the form of high-speed impact. However, a large amount of dust is generated during the crushing process of the crusher, polluting the environment, so a dust removal device is required for dust removal.

[0003] A dust removal device for a crusher is disclosed in a Chinese patent document with the publication number CN220004180U, which includes a barrel body. The upper part of the barrel body is a crushing chamber, and the lower part is a screening chamber. One side of the crushing chamber is provided with a dust removal chamber. The crushing chamber and the dust removal chamber are separated by a detachable filter plate. The upper end of the filter plate extends out of the top of the crushing chamber. In the center of the side of the dust removal chamber away from the crushing chamber, a suction fan is provided. A filter element is installed at the port of the suction fan. A dust collection box communicating with the dust removal chamber is detachably installed at the bottom end of the dust removal chamber. The filter plate faces the crushing chamber entirely, and when the suction fan sucks air, the dust in the crushing chamber can be comprehensively adsorbed and flow into the dust chamber through the filter plate for collection.

[0004] The deficiencies of the above-disclosed solution are as follows: During the processes of crushing and screening the raw materials, it is necessary to start the motor and the vibration motor to run. The motor drives the crushing roller to crush the raw materials, and the vibration motor drives the outer frame and the inner frame to vibrate for screening. Therefore, two power sources are required to separately complete the crushing and screening of the raw materials, resulting in cumbersome operation steps, low automation degree, and reduced work efficiency. Content of the Utility Model

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a dust removal device for a crusher, which can complete the crushing and screening of raw materials with one power source, has a high degree of automation, and can effectively solve the problems in the background technique.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A dust removal device for a crusher, including a main body. A first rotating shaft and a second rotating shaft arranged in parallel are rotatably installed in the main body. Crushing rollers are fixedly arranged on both the first rotating shaft and the second rotating shaft. A motor is fixedly arranged on the main body, and the output end of the motor is fixedly connected to the first rotating shaft. One end of the first rotating shaft away from the motor passes through the main body and is fixedly sleeved with a first gear. A second gear is fixedly sleeved on the second rotating shaft, and the second gear meshes with the first gear; A sieve plate is arranged below the crushing roller. The sieve plate is slidably connected to the main body. An annular plate is fixedly arranged at the bottom of the sieve plate. Rack bars are symmetrically and fixedly arranged inside the annular plate. A third gear is rotatably arranged in the main body. The third gear is an incomplete gear, and the third gear meshes with the rack bars. A transmission assembly is arranged between the third gear and the second rotating shaft. A dust suction assembly for sucking in dust is also arranged on the main body.

[0007] Further, the transmission assembly includes a first pulley and a second pulley. The first pulley is fixedly sleeved on the second rotating shaft. The second pulley is rotatably arranged on the main body. The same belt is sleeved on the second pulley and the first pulley. The second pulley is coaxially and fixedly connected to the third gear.

[0008] Further, the dust suction assembly includes a filter plate and a dust collector. A fixed block is fixedly arranged inside the main body. The filter plate is vertically slidably arranged on the top of the fixed block. The top of the filter plate is slidably connected to the top wall inside the main body. The filter plate, the fixed block and one side inside the main body together form a dust chamber. The dust collector is fixedly arranged on one side of the main body. The suction port of the dust collector is communicated with the dust chamber.

[0009] Further, the lowermost end of the filter plate is not lower than the sieve plate, and the sieve plate impacts the filter plate when it moves.

[0010] Further, a collection hopper is arranged below the sieve plate. The collection hopper is fixedly connected to the bottom of the main body. A discharge pipe is arranged at the bottom of the collection hopper, and the discharge pipe extends to the outside of the main body.

[0011] Further, a feed pipe communicating with its interior is arranged at the top of the main body.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] A rack is symmetrically and fixedly arranged inside the annular plate, a third gear is rotatably arranged inside the main body. The third gear is an incomplete gear, which meshes with the rack, and a transmission component is arranged between the third gear and the second rotating shaft. When the motor is started, the motor drives the first rotating shaft and the second rotating shaft to rotate, and the second rotating shaft and the first rotating shaft respectively drive the corresponding crushing rollers to rotate, so that the two crushing rollers crush the raw materials, and the crushed raw materials fall onto the sieve plate. When the second rotating shaft rotates, it also drives the first belt pulley to rotate. The first belt pulley drives the second belt pulley to rotate through a belt, and the second belt pulley drives the third gear to rotate. The third gear intermittently meshes with the rack at the top of the annular plate and the rack at the bottom of the annular plate respectively, so that the annular plate moves reciprocally. The annular plate drives the sieve plate to move reciprocally, and the sieve plate moves reciprocally to screen the crushed raw materials, improving the screening efficiency. This device realizes that one power source can complete the crushing and screening of raw materials, with simple operation steps and high automation degree, improving the crushing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a perspective view of the structure of the present utility model;

[0015] Figure 2 is a perspective view of the structure of the present utility model from another perspective;

[0016] Figure 3 is a sectional view of the structure of the present utility model.

[0017] In the figure: 1, main body; 2, vacuum cleaner; 3, feed pipe; 4, motor; 5, first belt pulley; 6, belt; 7, second belt pulley; 8, first gear; 9, second gear; 10, first rotating shaft; 11, filter plate; 12, crushing roller; 13, sieve plate; 14, annular plate; 15, third gear; 16, collection hopper; 17, fixing block; 18, rack; 19, second rotating shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to 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 creative efforts shall fall within the protection scope of the present utility model.

[0019] Please refer to Figures 1 - 3, the present utility model provides a technical solution: a dust removal device for a crusher, including a main body 1. An inlet pipe 3 communicating with its interior is installed at the top of the main body 1, and legs are uniformly and fixedly installed at the bottom of the main body 1. A first rotating shaft 10 and a second rotating shaft 19 arranged in parallel are rotatably installed in the main body 1. Crushing rollers 12 are fixedly installed on the outer circumferences of the first rotating shaft 10 and the second rotating shaft 19, and the crushing rollers 12 crush raw materials. A motor 4 is fixedly installed on one side of the main body 1. The output end of the motor 4 passes through the main body 1 and is fixedly and cooperatively installed with one end of the first rotating shaft 10. One end of the first rotating shaft 10 away from the motor 4 passes through the main body 1 and is fixedly sleeved with a first gear 8. One end of the second rotating shaft 19 passes through the main body 1 and is fixedly sleeved with a second gear 9, and the second gear 9 meshes with the first gear 8.

[0020] A sieve plate 13 is installed below the crushing roller 12. The sieve plate 13 is horizontally arranged and is slidably and cooperatively installed with the inner wall of the main body 1. A circular plate 14 is fixedly installed at the bottom of the sieve plate 13. The circular plate 14 is vertically arranged, and racks 18 are symmetrically and fixedly installed in the circular plate 14, one above the other. A third gear 15 is rotatably installed in the main body 1. The third gear 15 is an incomplete gear. The third gear 15 is located in the circular plate 14 and the third gear 15 meshes with the rack 18.

[0021] A transmission assembly is installed between the third gear 15 and the second rotating shaft 19. The transmission assembly includes a first pulley 5 and a second pulley 7. The first pulley 5 is fixedly sleeved on the second rotating shaft 19. The second pulley 7 is rotatably installed on the main body 1. The same belt 6 is sleeved on the second pulley 7 and the first pulley 5, and the second pulley 7 is coaxially and fixedly connected to the third gear 15.

[0022] Preferably, there are two circular plates 14, and the two circular plates 14 are symmetrically arranged at the bottom of the sieve plate 13. There are two third gears 15, and the two third gears 15 are symmetrically arranged in the main body 1. The two third gears 15 are respectively located in the corresponding circular plates 14 and mesh with the corresponding racks 18. There are two transmission assemblies, and the two transmission assemblies are respectively installed between the corresponding third gears 15 and the second rotating shafts 19.

[0023] A dust suction assembly for sucking dust is also installed on the main body 1. The dust suction assembly includes a filter plate 11 and a dust collector 2. A fixing block 17 is fixedly installed in the main body 1. The filter plate 11 is vertically and slidably installed on the top of the fixing block 17, and the top of the filter plate 11 is slidably and cooperatively installed with the top wall in the main body 1. One side of the filter plate 11 passes through the main body 1 and extends to the outside of the main body 1, facilitating the replacement of the filter plate 11. The filter plate 11, the fixing block 17 and one side in the main body 1 together form a dust chamber. The dust collector 2 is fixedly installed on one side of the main body 1, and the suction port of the dust collector 2 is communicated with the dust chamber.

[0024] The bottom end of the filter plate 11 is not lower than the sieve plate 13. When the sieve plate 13 moves, it impacts the filter plate 11, causing the filter plate 11 to vibrate, shaking off the dust on the filter plate 11 and preventing the dust from clogging the filter plate 11.

[0025] A collection hopper 16 is provided below the sieve plate 13. The collection hopper 16 is in a "U" shape and is fixedly and cooperatively installed with the bottom of the main body 1. A discharge pipe communicating with its interior is installed at the bottom of the collection hopper 16, and the discharge pipe extends to the outside of the main body 1, and a valve is provided on the discharge pipe.

[0026] The working principle of a dust removal device for a crusher provided by the present utility model is as follows:

[0027] Put raw materials into the feed pipe 3, start the motor 4. The motor 4 drives the first rotating shaft 10 to rotate, the first rotating shaft 10 drives the first gear 8 to rotate, the first gear 8 drives the second gear 9 to rotate, the second gear 9 drives the second rotating shaft 19 to rotate, and the second rotating shaft 19 and the first rotating shaft 10 respectively drive the corresponding crushing rollers 12 to rotate, so as to crush the raw materials by the two crushing rollers 12, and the crushed raw materials fall onto the sieve plate 13.

[0028] Start the vacuum cleaner 2. The dust generated in the main body 1 enters the dust chamber through the filter plate 11. The filter plate 11 prevents the vacuum cleaner 2 from sucking in the crushed raw materials, and finally the vacuum cleaner 2 sucks the dust in the dust chamber.

[0029] When the second rotating shaft 19 rotates, it also drives the first belt pulley 5 to rotate. The first belt pulley 5 drives the second belt pulley 7 to rotate through the belt 6. The second belt pulley 7 drives the third gear 15 to rotate. The third gear 15 intermittently meshes with the racks 18 at the top and bottom of the annular plate 14 respectively, so that the annular plate 14 reciprocates. The annular plate 14 drives the sieve plate 13 to reciprocate, and the sieve plate 13 reciprocates to screen the crushed raw materials, improving the screening efficiency. The screened raw material particles fall into the collection hopper 16 and are finally discharged through the discharge pipe.

[0030] At the same time, during the reciprocating movement of the sieve plate 13, the sieve plate 13 will intermittently impact the filter plate 11, causing the filter plate 11 to vibrate and shaking off the dust on the filter plate 11 to prevent the filter plate 11 from being clogged and affecting dust collection.

[0031] 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 dust removal device for a pulverizer, comprising a main body (1), characterized in that: A first rotating shaft (10) and a second rotating shaft (19) arranged in parallel are rotatably mounted in the main body (1), and a crushing roller (12) is fixedly mounted on the first rotating shaft (10) and the second rotating shaft (19). A motor (4) is fixedly mounted on the main body (1), and the output end of the motor (4) is fixedly connected to the first rotating shaft (10). An end of the first rotating shaft (10) away from the motor (4) passes through the main body (1) and is fixedly sleeved with a first gear (8). A second rotating shaft (19) is fixedly sleeved with a second gear (9), and the second gear (9) and the first gear (8) are connected to each other. meshing; a sieve plate (13) is arranged below the crushing roller (12), the sieve plate (13) is slidably connected to the main body (1), an annular plate (14) is fixedly arranged at the bottom of the sieve plate (13), a rack (18) is symmetrically fixedly arranged inside the annular plate (14), a third gear (15) is rotatably arranged inside the main body (1), the third gear (15) is an incomplete gear, the third gear (15) is meshed with the rack (18), a transmission component is arranged between the third gear (15) and the second rotating shaft (19), and a dust suction component for sucking dust is also arranged on the main body (1).

2. The dust removal device for a pulverizer according to claim 1, characterized in that: The transmission assembly comprises a first pulley (5) and a second pulley (7), wherein the first pulley (5) is fixedly sleeved on the second rotating shaft (19), and the second pulley (7) is rotatably arranged on the main body (1), the second pulley (7) and the first pulley (5) are sleeved with the same belt (6), and the second pulley (7) is coaxially fixedly connected to the third gear (15).

3. The dust removal device for a pulverizer according to claim 1, characterized in that: The dust collection assembly comprises a filter plate (11) and a dust collector (2); a fixing block (17) is fixedly arranged in the main body (1); the filter plate (11) is vertically slidably arranged on the top of the fixing block (17); the top of the filter plate (11) is slidably connected to a top wall in the main body (1); the filter plate (11), the fixing block (17) and one side in the main body (1) together form a dust chamber; the dust collector (2) is fixedly arranged on one side of the main body (1); and a suction port of the dust collector (2) is connected to the dust chamber.

4. The dust removal device for a pulverizer according to claim 3, characterized in that: The bottom end of the filter plate (11) is not lower than the sieve plate (13), and the sieve plate (13) impacts the filter plate (11) when moving.

5. The dust removal device for a pulverizer according to claim 1, characterized in that: A collecting hopper (16) is provided below the sieve plate (13), the collecting hopper (16) is fixedly connected to the bottom of the main body (1), and a discharge pipe is provided at the bottom of the collecting hopper (16), the discharge pipe extending to the outside of the main body (1).

6. The dust removal device for a pulverizer according to claim 1, characterized in that: The top of the main body (1) is provided with a feed pipe (3) which is in communication with the interior thereof.

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