A coaxial crusher with forward and reverse rotation switching

Abstract

This utility model discloses a coaxial pulverizer with forward and reverse rotation switching, comprising: a support frame, a dual-shaft motor at the upper end of the support frame, a pulverizing component for pulverizing bran on one side of the dual-shaft motor; a gearbox fixedly connected to one output shaft of the dual-shaft motor, the gearbox being fixedly connected to the dual-shaft motor, and a suction component for sucking out bran on one side of the gearbox; a collection component for collecting bran at the upper end of the support frame; and a dust removal component for use with the collection component at the upper end of the support frame. This utility model, by providing a dust removal component for use with the collection component, uses the negative pressure generated by the suction component to draw the pulverized bran into the collection shell. The dust-laden airflow is filtered by the dust removal component, and the dust is collected inside the dust removal component, while clean air enters the outside air, avoiding the leakage of dust through the discharge port or pipe gaps in traditional open-loop systems.

Description

Technical Field

[0001] This utility model relates to the technical field of coaxial crushers, specifically a coaxial crusher with forward and reverse rotation switching. Background Technology

[0002] A coaxial pulverizer with forward and reverse rotation is a highly efficient pulverizing device that combines the advantages of forward / reverse rotation and a coaxial design. The pulverizer employs a coaxial design, meaning the motor and pulverizing mechanism are on the same axis, resulting in a more compact and stable overall structure. Simultaneously, the equipment features forward and reverse rotation functionality, allowing for flexible adjustment according to different material characteristics and processing requirements. This pulverizer is suitable for pulverizing various materials, such as plastics, rubber, resins, inorganic minerals, Chinese and Western medicines, paints, dyes, and grains. It uses a high-speed rotating rotor and hammer plates to impact and crush the material, supplemented by a counter-attack device for secondary crushing, thereby achieving the desired particle size.

[0003] When the existing equipment is in use, the fine bran produced during the crushing process is easily leaked out through the mechanical gaps. The traditional open feeding and discharging design lacks an effective dust removal mechanism, resulting in excessive dust concentration in the working environment and endangering the health of operators. Therefore, we need to propose a coaxial crusher that can switch between forward and reverse rotation. Utility Model Content

[0004] The purpose of this invention is to provide a coaxial crusher with forward and reverse rotation switching, which collects dust when the bran is discharged by setting up a dust removal component to prevent dust from overflowing, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A coaxial pulverizer with forward and reverse rotation switching, comprising:

[0007] A support frame, the upper end of which is equipped with a dual-shaft motor, and a pulverizing component for pulverizing bran is provided on one side of the dual-shaft motor;

[0008] A gearbox is fixedly connected to one output shaft of the dual-shaft motor. The gearbox is fixedly connected to the dual-shaft motor. A suction assembly for sucking out bran is provided on one side of the gearbox.

[0009] The upper end of the support frame is provided with a collection component for collecting bran.

[0010] The upper end of the support frame is provided with a dust removal component for use with the collection component.

[0011] Preferably, the dust removal assembly includes a fixing block, a dust collection pipe, a limiting plate, a sealing frame, a fiber filter plate, and an external threaded ring;

[0012] The fixed block has a dust collection pipe bolted inside. One end of the dust collection pipe is fixedly connected to a limiting plate. A sealing frame is slidably connected inside the limiting plate. A fiber filter plate is fixedly connected to the outside of the sealing frame. The fiber filter plate is slidably connected to the dust collection pipe. The other end of the dust collection pipe is internally threaded with an external threaded ring, which contacts the sealing frame.

[0013] Preferably, the sealing frame is in contact with the dust collection pipe, and the outer side of the sliding rod of the sealing frame is coated with a damping coating.

[0014] Preferably, the collection assembly includes a collection shell, a mounting cover, a filter plate, a flow guide plate, and a sealing door;

[0015] The upper end of the support frame is fixedly connected to a collection shell, the upper end of the collection shell is bolted with a mounting cover, the lower end of the mounting cover is fixedly connected to a plurality of evenly distributed filter plates, the inside of the collection shell is fixedly connected to a flow guide plate, and the inside of the side wall of the collection shell is provided with two symmetrically distributed sealing doors.

[0016] Preferably, the crushing assembly includes a crushing frame, a crushing shell, and a sieve plate;

[0017] The dual-axis motor has a crushing frame fixedly connected to one of its output shafts. A crushing shell is rotatably connected to the outside of the crushing frame. The crushing shell is fixedly connected to the dual-axis motor. A sieve plate is fixedly connected inside the crushing shell. A feeding assembly for feeding materials is provided on the side wall of the crushing shell.

[0018] Preferably, the feeding assembly includes a feeding shell, a rotating frame, a lifting plate, and a fixed shell;

[0019] The crushing shell is fixedly connected to the side wall of the crushing shell, and a rotating frame is rotatably connected inside the crushing shell. A lifting plate is threadedly connected to the lower end of the rotating frame. The lifting plate is in contact with the crushing shell, and a fixed shell is slidably connected to the outside of the lifting plate. The fixed shell is slidably connected to the crushing shell.

[0020] Preferably, the air intake assembly includes an impeller frame, a ventilation housing, and an air outlet duct;

[0021] The gearbox has an impeller frame fixedly connected to its output shaft, a ventilation shell rotatably connected to the outside of the impeller frame, a ventilation shell fixedly connected to a support frame, an air outlet pipe connected to the upper end of the ventilation shell via a flange, and an air outlet pipe fixedly connected to a collection shell.

[0022] Preferably, a connecting pipe is fixedly connected to the side wall of the ventilation shell, and the connecting pipe is fixedly connected to the crushing shell.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] This invention features a dust removal component that works in conjunction with the collection component. The negative pressure generated by the suction component draws the crushed rice bran into the collection shell. The dust-laden airflow is filtered by the dust removal component, and the dust is collected inside the component. Clean air then enters the outside air, preventing dust from leaking out through the discharge port or pipe gaps in traditional open-loop systems. Attached Figure Description

[0025] Figure 1 This is one of the structural schematic diagrams of this utility model;

[0026] Figure 2 This is the second structural schematic diagram of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the crushing component of this utility model;

[0028] Figure 4 This is a schematic diagram of the feeding assembly of this utility model;

[0029] Figure 5 This is a schematic diagram of the structure of a partial component of this utility model;

[0030] Figure 6 This is a schematic diagram of the dust removal component of this utility model.

[0031] In the diagram: 1. Support frame; 2. Dual-shaft motor; 3. Crushing assembly; 31. Crushing rack; 32. Crushing shell; 33. Screen plate; 4. Feeding assembly; 41. Feeding shell; 42. Rotating frame; 43. Lifting plate; 44. Fixed shell; 5. Gearbox; 6. Suction assembly; 61. Impeller frame; 62. Ventilation shell; 63. Air outlet pipe; 7. Connecting pipe; 8. Collection assembly; 81. Collection shell; 82. Mounting cover; 83. Filter plate; 84. Guide plate; 85. Sealing door; 9. Dust removal assembly; 91. Fixing block; 92. Dust collection pipe; 93. Limiting plate; 94. Sealing frame; 95. Fiber filter plate; 96. External threaded ring. Detailed Implementation

[0032] 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.

[0033] Please see Figure 1-6 This utility model provides a technical solution:

[0034] A coaxial pulverizer with forward and reverse rotation switching, comprising:

[0035] Support frame 1, with a dual-shaft motor 2 at the upper end of support frame 1, and a crushing component 3 for crushing bran is provided on one side of the dual-shaft motor 2;

[0036] A gearbox 5 is fixedly connected to one output shaft of the dual-shaft motor 2. The gearbox 5 is fixedly connected to the dual-shaft motor 2. A suction assembly 6 for sucking out bran is provided on one side of the gearbox 5.

[0037] The upper end of the support frame 1 is provided with a collection component 8 for collecting bran;

[0038] The upper end of the support frame 1 is provided with a dust removal component 9 that works in conjunction with the collection component 8.

[0039] For example, the support frame 1, serving as the basic structure of the entire machine, is welded from high-strength alloy steel and its surface is sandblasted for rust prevention. A dual-axis motor 2 is bolted to its upper end. The dual-axis motor 2 is a frequency converter type, supporting forward and reverse rotation. A controller with a control knob is located on the upper end of the dual-axis motor 2 to control its forward and reverse rotation. One output shaft is connected to the crushing component 3, and the other output shaft is connected to the gearbox 5 via a spline. The gearbox 5 uses a planetary gear structure, enabling multi-level speed adjustment. Its housing is rigidly connected to the dual-axis motor 2 via a flange to ensure transmission stability. The output end of the gearbox 5 is connected to the suction component 6, forming an independent airflow system. The upper end of the support frame 1 also integrates a collection component 8 and a dust removal component 9, which are connected to the crushing chamber via pipes, forming a closed-loop material handling system.

[0040] Dust removal assembly 9 includes a fixing block 91, a dust collection pipe 92, a limiting plate 93, a sealing frame 94, a fiber filter plate 95, and an external threaded ring 96;

[0041] The fixed block 91 is internally bolted with a dust collection pipe 92. One end of the dust collection pipe 92 is fixedly connected to a limiting plate 93. The limiting plate 93 is internally slidably connected to a sealing frame 94. The sealing frame 94 is in contact with the dust collection pipe 92. The outer side of the sliding rod of the sealing frame 94 is coated with a damping coating. The outer side of the sealing frame 94 is fixedly connected to a fiber filter plate 95. The fiber filter plate 95 is slidably connected to the dust collection pipe 92. The other end of the dust collection pipe 92 is internally threaded with an external threaded ring 96. The external threaded ring 96 is in contact with the sealing frame 94.

[0042] For example, the fixing block 91 is fixed to the side wall of the collecting assembly 8, and a limiting plate 93 is welded to one end of the dust collection pipe 92. The limiting plate 93 has a sliding groove, which forms a damping engagement with the sliding rod of the sealing frame 94. The surface of the sliding rod of the sealing frame 94 is sprayed with a damping coating to prevent the sealing frame 94 from sliding at will. The fiber filter plate 95 is a multi-layer glass fiber composite structure and is fixedly connected to the sealing frame 94. The external threaded ring 96 is screwed into the threaded section of the inner wall of the dust collection pipe 92.

[0043] The collection assembly 8 includes a collection shell 81, a mounting cover 82, a filter plate 83, a flow guide plate 84, and a sealing door 85;

[0044] The upper end of the support frame 1 is fixedly connected to a collection shell 81, the upper end of the collection shell 81 is bolted to a mounting cover 82, the lower end of the mounting cover 82 is fixedly connected to a plurality of evenly distributed filter plates 83, the inside of the collection shell 81 is fixedly connected to a guide plate 84, and the inside of the side wall of the collection shell 81 is provided with two symmetrically distributed sealing doors 85.

[0045] For example, the inner surface of the collection shell 81 is coated with a polyethylene anti-corrosion layer, and its upper end is connected to the mounting cover 82 by quick-release bolts. Multiple sets of filter plates 83 are welded below the mounting cover 82. The filter plates are made of stainless steel perforated mesh. The upper end of the guide plate 84 is set as an inclined plate to facilitate the chaff to fall to the lower end of the collection shell 81. Two sealing doors 85 are symmetrically arranged on the side wall of the collection shell 81. Fluororubber sealing strips are embedded in the door frames. The door lock adopts a quick-opening pressing mechanism, which can be opened and closed with one hand.

[0046] The crushing assembly 3 includes a crushing frame 31, a crushing shell 32, and a sieve plate 33;

[0047] Among them, a crushing frame 31 is fixedly connected to one output shaft of the dual-shaft motor 2, a crushing shell 32 is rotatably connected to the outside of the crushing frame 31, the crushing shell 32 is fixedly connected to the dual-shaft motor 2, a sieve plate 33 is fixedly connected inside the crushing shell 32, and a feeding assembly 4 for feeding is provided on the side wall of the crushing shell 32.

[0048] For example, the outer side of the crushing frame 31 is provided with a plurality of crushing blades arranged in a ring to facilitate the crushing of raw materials. The crushing shell 32 is used to install the crushing frame 31, and the aperture of the sieve plate 33 can be selected according to the material requirements.

[0049] The feeding assembly 4 includes a feeding shell 41, a rotating frame 42, a lifting plate 43, and a fixed shell 44;

[0050] The crushing shell 32 is fixedly connected to the side wall of the feeding shell 41. The feeding shell 41 is rotatably connected to the inside of the feeding shell 41. The lower end of the rotating frame 42 is threadedly connected to the lifting plate 43. The lifting plate 43 is in contact with the feeding shell 41. The outer side of the lifting plate 43 is slidably connected to the fixed shell 44. The fixed shell 44 is slidably connected to the feeding shell 41.

[0051] For example, the upper opening of the feed shell 41 is relatively large, which facilitates the input of raw materials into the feed shell 41. The rotating frame 42 is rotatably connected to the feed shell 41. The inner wall of the lifting plate 43 is machined with corresponding threads, which form a sliding fit with the fixed shell 44. The fixed shell 44 is fixed to the top of the feed shell 41. A handwheel is installed on the top of the rotating frame 42 to facilitate the rotation of the rotating frame 42.

[0052] The suction assembly 6 includes an impeller frame 61, a ventilation housing 62, and an air outlet duct 63;

[0053] Among them, an impeller frame 61 is fixedly connected to the output shaft of the gearbox 5, a ventilation shell 62 is rotatably connected to the outside of the impeller frame 61, the ventilation shell 62 is fixedly connected to the support frame 1, the upper end of the ventilation shell 62 is connected to the air outlet pipe 63 through a flange, the air outlet pipe 63 is fixedly connected to the collection shell 81, and a connecting pipe 7 is fixedly connected to the side wall of the ventilation shell 62, the connecting pipe 7 is fixedly connected to the crushing shell 32.

[0054] For example, the gearbox 5 drives the impeller frame 61 to rotate. When the impeller frame 61 rotates, it draws out the air inside the connecting pipe 7. The airflow is discharged from the ventilation shell 62 through the upper end of the ventilation shell 62. The air outlet pipe 63 is connected to the ventilation shell 62 through a flange. The connecting pipe 7 is welded to the side wall of the ventilation shell 62. The connecting pipe 7 transports the bran.

[0055] Working principle: The operator puts the raw material to be crushed into the feed shell 41 through the upper opening. The raw material enters the feed shell 41. The operator rotates the handwheel of the feed assembly 4 to drive the rotating frame 42 to rotate. Through the screw drive, the lifting plate 43 slides along the fixed shell 44 to adjust the opening of the feed port and control the raw material feeding speed.

[0056] The operator selects the forward rotation mode through the controller knob, the dual-shaft motor 2 starts, and one output shaft drives the crushing frame 31 of the crushing component 3 to rotate at high speed; the crushing blades on the outside of the crushing frame 31 shear and impact the raw material, and the crushed material is screened through the sieve plate 33. Qualified particles enter the lower chamber of the crushing shell 32. The other output shaft of the dual-shaft motor 2 is decelerated through the gearbox 5 and drives the impeller frame 61 of the suction component 6 to rotate. The impeller frame 61 forms a negative pressure in the ventilation shell 62, and the airflow is drawn into the bottom of the crushing shell 32 from the connecting pipe 7, carrying the crushed bran into the collection component 8 through the air outlet pipe 63;

[0057] The airflow containing bran enters the collection shell 81 through the air outlet 63. The filter plate 83 under the mounting cover 82 blocks the airflow, reducing its speed. Large pieces of bran fall onto the guide plate 84. Due to centrifugal force, the bran settles to the bottom of the collection shell 81. The filter plate 83 is cleaned regularly to prevent it from becoming clogged and affecting the ventilation effect.

[0058] Pull out the sealing frame 94, the limiting plate 93 limits the sealing frame 94, the airflow enters the dust collection pipe 92, the fiber filter plate 95 intercepts the dust, and the clean air is discharged through the end of the dust collection pipe 92. The dust collection pipe 92 and the external threaded ring 96 are removed periodically, and the inside of the dust collection pipe 92 is cleaned.

[0059] After the bran material inside the collection shell 81 accumulates to a certain height, the operator uses a quick-opening clamping mechanism with one hand to open the sealing door 85 and discharge the bran material through the inclined surface of the guide plate 84.

[0060] The control method of the dual-axis motor 2 in this application is automatic control by a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Furthermore, this application is mainly used to protect the structure, shape and their combination, so the control method and circuit connection will not be explained in detail in this application. The device is powered by a built-in power supply or an external power supply.

[0061] 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. A positive and reverse rotation switching coaxial type pulverizer, characterized by, include: A support frame (1) is provided at the upper end of the support frame (1) with a dual-shaft motor (2) and a crushing component (3) for crushing is provided on one side of the dual-shaft motor (2); A gearbox (5) is fixedly connected to one output shaft of the dual-shaft motor (2). The gearbox (5) is fixedly connected to the dual-shaft motor (2). A suction assembly (6) for sucking out bran is provided on one side of the gearbox (5). The upper end of the support frame (1) is provided with a collection component (8) for collecting bran; The upper end of the support frame (1) is provided with a dust removal component (9) for use with the collection component (8).

2. A direct and reverse rotation switching coaxial shredder according to claim 1, characterized in that The dust removal assembly (9) includes a fixing block (91), a dust collection pipe (92), a limiting plate (93), a sealing frame (94), a fiber filter plate (95), and an external threaded ring (96); The fixed block (91) is internally bolted with a dust collection pipe (92). One end of the dust collection pipe (92) is fixedly connected to a limiting plate (93). The limiting plate (93) is internally slidably connected to a sealing frame (94). The outer side of the sealing frame (94) is fixedly connected to a fiber filter plate (95). The fiber filter plate (95) is slidably connected to the dust collection pipe (92). The other end of the dust collection pipe (92) is internally threaded with an external threaded ring (96). The external threaded ring (96) contacts the sealing frame (94).

3. A direct and reverse rotation changeover in-line shredder according to claim 2, characterized in that, The sealing frame (94) is in contact with the dust collection pipe (92), and the outer side of the sliding rod of the sealing frame (94) is coated with a damping coating.

4. A direct and reverse rotation changeable coaxial shredder according to claim 1, characterized in that, The collection assembly (8) includes a collection shell (81), a mounting cover (82), a filter plate (83), a guide plate (84), and a sealing door (85); The upper end of the support frame (1) is fixedly connected to a collection shell (81), the upper end of the collection shell (81) is bolted with an installation cover (82), the lower end of the installation cover (82) is fixedly connected to a plurality of uniformly distributed filter plates (83), the inside of the collection shell (81) is fixedly connected to a guide plate (84), and the inside of the side wall of the collection shell (81) is provided with two symmetrically distributed sealing doors (85).

5. A direct and reverse rotation changeable in-line shredder according to claim 1, characterized in that, The crushing assembly (3) includes a crushing frame (31), a crushing shell (32), and a sieve plate (33); Among them, a crushing frame (31) is fixedly connected to one output shaft of the dual-shaft motor (2), a crushing shell (32) is rotatably connected to the outside of the crushing frame (31), the crushing shell (32) is fixedly connected to the dual-shaft motor (2), a sieve plate (33) is fixedly connected inside the crushing shell (32), and a feeding assembly (4) for feeding is provided on the side wall of the crushing shell (32).

6. A direct and reverse rotation changeable in-line shredder according to claim 5, characterized in that, The feeding assembly (4) includes a feeding shell (41), a rotating frame (42), a lifting plate (43), and a fixed shell (44); The crushing shell (32) is fixedly connected to the side wall of the feeding shell (41), and the inside of the feeding shell (41) is rotatably connected to the rotating frame (42). The lower end of the rotating frame (42) is threadedly connected to the lifting plate (43), the lifting plate (43) is in contact with the feeding shell (41), and the outside of the lifting plate (43) is slidably connected to the fixed shell (44), which is slidably connected to the feeding shell (41).

7. A direct and reverse rotation changeable in-line shredder according to claim 1, characterized in that, The suction assembly (6) includes an impeller frame (61), a ventilation shell (62), and an air outlet pipe (63); Among them, an impeller frame (61) is fixedly connected to the output shaft of the gearbox (5), and a ventilation shell (62) is rotatably connected to the outside of the impeller frame (61). The ventilation shell (62) is fixedly connected to the support frame (1), and an air outlet pipe (63) is connected to the upper end of the ventilation shell (62) through a flange. The air outlet pipe (63) is fixedly connected to the collection shell (81).

8. A direct and reverse rotation changeable in-line shredder according to claim 7, characterized in that, A connecting pipe (7) is fixedly connected to the side wall of the ventilation shell (62), and the connecting pipe (7) is fixedly connected to the crushing shell (32).

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