Energy-efficient pulverizer

Abstract

The utility model discloses a kind of efficient energy-saving pulverizers, including motor, broken material chamber, cutter wheel, motor base and rack, motor one end is fixedly installed on motor base by fixed seat, the other end is fixed on broken material chamber, cutter wheel is arranged in broken material chamber and is driven connection to the output shaft of motor, motor base and broken material chamber are fixed on rack by bolt;Motor is externally provided with protective cover, motor controller and emergency stop switch electrically connected with motor are installed on protective cover;Broken material chamber is provided with at least one feed inlet and one discharge outlet and one opening for installing cutter wheel, bearing fixing sleeve is provided on the side plate of broken material chamber, the front end cover of motor is installed on broken material chamber by second bearing, second bearing is arranged in bearing fixing sleeve;Effect: practical, novel structure, use outer rotor brushless motor drive, utilize the spline groove of motor outer rotor end cover and the spline shaft of pulverizing cutter wheel are inserted, outside uses self-aligning bearing and is fixed, stable and reliable, impact vibration resistance.

Description

Technical Field

[0001] This utility model relates to a pulverizer, and more particularly to a high-efficiency and energy-saving pulverizer. Background Technology

[0002] Existing similar products, such as crushers powered by conventional AC asynchronous motors, have low efficiency, high energy consumption, and are prone to jamming and motor damage during use, making them unsafe. Furthermore, they experience significant vibration, poor stability, and weak impact resistance during use, which affects the overall quality and performance of the machine. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a high-efficiency and energy-saving pulverizer to address the shortcomings of the existing technology.

[0004] To achieve the above objectives, the present invention adopts the following measures: A high-efficiency and energy-saving crusher includes a motor, a crushing chamber, a cutter wheel, a motor base, and a frame. One end of the motor is fixed to the motor base via a fixed seat, and the other end is fixed to the crushing chamber. The cutter wheel is disposed in the crushing chamber and is transmitted to the output shaft of the motor. The motor base and the crushing chamber are fixed to the frame by bolts. The motor is a DC brushless inverter motor with an external rotor structure, consisting of a front cover, an external rotor, an inner stator winding, and a rear cover. The inner sides of both the front and rear covers are equipped with first bearings, and a spline groove is machined in the center hole on the outer side of the front cover. Permanent magnet poles are installed on the inner side of the external rotor, and a motor shaft is set at the center of the inner stator winding. The motor shaft is rotatably mounted on the front and rear covers via the first bearings. The rear part of the motor shaft is milled into a flattened oval shape, and the flattened oval section of the motor shaft passes through the corresponding flat hole on the motor base and is then fixed to the motor base by a fixing seat. The motor is equipped with a protective cover, and the motor controller and emergency stop switch, which are electrically connected to the motor, are installed on the protective cover. The crushing chamber is provided with at least one feed inlet, one discharge outlet, and one opening for installing the cutter wheel. A bearing fixing sleeve is provided on the side plate of the crushing chamber. The front end cover of the motor is installed on the crushing chamber through a second bearing, which is located inside the bearing fixing sleeve. A feed hopper is installed and fixed at the feed inlet end of the crushing chamber, and a discharge hopper is installed and fixed at the discharge outlet end. At least two blades are bolted onto the cutter wheel. One end of the cutter wheel shaft is machined with a splined shaft that matches the front end cover of the motor, and the other end is mounted on the bearing mounting position corresponding to the movable side plate of the crushing chamber via a third bearing. The movable side plate of the crushing chamber is bolted onto the opening in the crushing chamber for mounting the cutter wheel. The third and second bearings are self-aligning bearings; The frame is equipped with a movable roller on one side of its lower part and a rubber shock-absorbing block on the other side. A collection box is installed at the lower middle position of the frame or below the discharge hopper.

[0005] The beneficial effects of this utility model are: practicality, novel structure, use of external rotor brushless motor drive, matching controller, intelligent protection, instantaneous dynamic power compensation, high torque, long life and maintenance-free, power increase and energy consumption reduction; the spline groove of the motor's external rotor end cover is inserted into the spline shaft of the crushing blade, and the outside is fixed with self-aligning bearings, so the transmission is stable and reliable and resistant to impact and vibration. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the external structure of this utility model.

[0007] Figure 2 This is a schematic diagram of the overall exploded structure of this utility model.

[0008] Figure 3 This is a schematic diagram of the upper part of the structure of this utility model.

[0009] Figure 4 This is an exploded structural diagram of the power component of this utility model.

[0010] Figure 5 This is a cross-sectional structural diagram of the power component of this utility model. Detailed Implementation

[0011] A high-efficiency and energy-saving crusher includes a motor 1, a crushing chamber 2, a cutter wheel 3, a motor base 4, and a frame 12. One end of the motor 1 is mounted and fixed on the motor base 4 via a fixing seat 11, and the other end is fixed on the crushing chamber 2. The cutter wheel 3 is disposed in the crushing chamber 2 and is driven to the output shaft of the motor 1. The motor base 4 and the crushing chamber 2 are fixed to the frame 12 by bolts.

[0012] The motor 1 is a DC brushless inverter motor with an external rotor structure, consisting of a front cover 1-01, an external rotor 1-02, an inner stator winding 1-03, and a rear cover 1-05. A first bearing 1-04 is installed on the inner side of both the front cover 1-01 and the rear cover 1-05. A spline groove is machined in the center hole on the outer side of the front cover 1-01. A permanent magnet pole 1-06 is installed on the inner side of the external rotor 1-02. A motor shaft 1-07 is located at the center of the inner stator winding 1-03. The motor shaft 1-07 is rotatably mounted on the front cover 1-01 and the rear cover 1-05 via the first bearing 1-04. The rear part of the motor shaft 1-07 is milled into a flattened oval shape. After passing through the corresponding flat hole on the motor base 4, the flattened oval section of the motor shaft 1-07 is fixed to the motor base 4 via a fixing seat 11.

[0013] Driven by a DC brushless external rotor motor, and intelligently frequency-converted via a controller, it features multiple protection modes including undervoltage, overcurrent, overspeed, overheating, and overload. It boasts low noise and vibration, high moment of inertia, high torque, long lifespan, and maintenance-free operation. With instantaneous dynamic power compensation, it is highly efficient and energy-saving, achieving an efficiency of up to 95%, which is more than 20% higher than that of traditional motors. The design incorporates a spline shaft plug-in power connection method, resulting in a simple and compact structure. It can be used as a single power output module and applied to various machine structures, demonstrating high versatility.

[0014] The motor 1 is provided with a protective cover 6, and the motor controller 5 and emergency stop switch 7, which are electrically connected to the motor 1, are installed on the protective cover 6.

[0015] The crushing chamber 2 is provided with at least one feed inlet, one discharge outlet, and one opening for installing the cutter wheel 3. A bearing fixing sleeve 2-01 is provided on the side plate of the crushing chamber 2. The front end cover 1-01 of the motor 1 is installed on the crushing chamber 2 through the second bearing 10, which is located inside the bearing fixing sleeve 2-01. A feed hopper 13 is installed and fixed at the feed inlet end of the crushing chamber 2, and a discharge hopper 14 is installed and fixed at the discharge outlet end.

[0016] This power combination and connection structure (the mounting structure of motor 1 and the transmission structure between motor 1 and cutter wheel 3) can be used as a general power module, with replacement of functional components and frame carriers, and applied to various production scenarios, evolving into a power unit on various types of machinery and equipment.

[0017] At least two blades 3-02 are bolted onto the cutter wheel 3. One end of the cutter wheel shaft 3-01 of the cutter wheel 3 is machined with a spline shaft that matches the front end cover 1-01 of the motor 1, and the other end is mounted on the bearing mounting position corresponding to the movable side plate 8 of the crushing chamber via a third bearing 9. The movable side plate 8 of the crushing chamber is bolted onto the opening of the crushing chamber 2 for mounting the cutter wheel 3.

[0018] When motor 1 is working, it drives the cutter wheel 3 to rotate, and the cutter wheel 3 can crush the material in the crushing chamber 2. The material to be crushed enters the crushing chamber 2 through the feed hopper 13, and the crushed material is collected by the discharge hopper 14 and the collection box 16.

[0019] The third bearing 9 and the second bearing 10 are self-aligning bearings. They can solve the high-frequency oscillations caused by geometric tolerances and assembly errors in the manufacturing and assembly process of the motor 1 and the cutter wheel 3, ensuring smooth and stable machine operation.

[0020] The frame 12 has a movable roller 15 installed on one side of its lower part, facilitating movement of the device. A rubber shock absorber 17 is installed on the other side. Lifting the side with the rubber shock absorber 17 allows the movable roller 15 to touch the ground, enabling the device to be pushed. A collection box 16 is installed at the lower center of the frame 12 or below the discharge hopper 14. The collection box 16 is used for the material after the mobile phone is crushed. The frame 12 serves as a carrier for mounting various functional components of the machine.

Claims

1. A high efficiency energy saving pulverizer comprising a motor (1), a crushing chamber (2), a knife wheel (3), a motor base (4) and a frame (12), characterized in that: One end of the motor (1) is fixed to the motor base (4) via a fixing seat (11), and the other end is fixed to the crushing chamber (2). The cutter wheel (3) is set inside the crushing chamber (2) and is connected to the output shaft of the motor (1). The motor base (4) and the crushing chamber (2) are fixed to the frame (12) by bolts. The motor (1) is a DC brushless frequency converter motor with an external rotor structure, consisting of a front cover (1-01), an external rotor (1-02), an inner stator winding (1-03), and a rear cover (1-05). The inner sides of the front cover (1-01) and the rear cover (1-05) are each equipped with a first... A bearing (1-04) has a spline groove machined in the center hole on the outer side of the front cover (1-01); a permanent magnet pole (1-06) is installed on the inner side of the outer rotor (1-02); a motor shaft (1-07) is set in the center of the inner stator winding (1-03); the motor shaft (1-07) is rotatably mounted on the front cover (1-01) and the rear cover (1-05) through the first bearing (1-04); the rear part of the motor shaft (1-07) is milled into a flat round shape; a flat round section of the motor shaft (1-07) passes through the corresponding flat hole on the motor base (4) and is fixed to the motor base (4) through the fixing seat (11).

2. A high efficiency energy saving comminutor according to claim 1 wherein: The motor (1) is provided with a protective cover (6), and the motor controller (5) and emergency stop switch (7) which are electrically connected to the motor (1) are installed on the protective cover (6).

3. A high efficiency, energy saving comminutor according to claim 2, characterised in that: The crushing chamber (2) is provided with at least one feed inlet, one discharge outlet and one opening for installing the cutter wheel (3). A bearing fixing sleeve (2-01) is provided on the side plate of the crushing chamber (2). The front end cover (1-01) of the motor (1) is installed on the crushing chamber (2) through the second bearing (10). The second bearing (10) is located in the bearing fixing sleeve (2-01). A feed hopper (13) is installed and fixed at the feed inlet end of the crushing chamber (2), and a discharge hopper (14) is installed and fixed at the discharge outlet end.

4. A high efficiency, energy saving comminutor according to claim 3, characterised in that: At least two blades (3-02) are bolted on the cutter wheel (3). One end of the cutter wheel shaft (3-01) of the cutter wheel (3) is machined with a spline shaft that matches the front end cover (1-01) of the motor (1), and the other end is mounted on the bearing mounting position of the movable side plate (8) of the crushing chamber through the third bearing (9). The movable side plate (8) of the crushing chamber is fixedly mounted on the opening of the crushing chamber (2) for mounting the cutter wheel (3) by bolts.

5. A high efficiency, energy saving comminutor according to claim 4 wherein: The third bearing (9) and the second bearing (10) are self-aligning bearings.

6. A high efficiency, energy saving comminutor according to claim 5 wherein: The frame (12) is equipped with a moving roller (15) on one side of the lower part and a rubber shock absorber (17) on the other side. A collection box (16) is installed at the lower middle position of the frame (12) or below the discharge hopper (14).

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