Transmission device of ball mill directly driven by permanent magnet motor

Abstract

The utility model discloses a transmission device of a ball mill directly driven by a permanent magnet motor, which comprises the permanent magnet motor, the output end of the permanent magnet motor is connected to one end of a drum-type coupling, the other end of the drum-type coupling is connected with a pinion, a bull gear is mounted on a ball mill barrel through a positioning bolt and a fastening bolt, and the pinion is meshed with the bull gear; a slow-drive motor is arranged on the side, away from the permanent magnet motor, of the pinion, and the output end of the slow-drive motor is connected with the pinion; a high-voltage frequency converter is fixed to one side of the permanent magnet motor and electrically connected with the permanent magnet motor. According to the utility model, the ball mill is rotated by adopting meshing transmission of the permanent magnet motor, the pinion and the bull gear, so that friction loss and energy conversion loss in mechanical transmission are reduced, the whole transmission chain becomes simpler and more compact, potential fault points are reduced, and the reliability and the stability of the system are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to ball mill technical field, concretely is a kind of transmission device of permanent magnet motor direct drive ball mill. BACKGROUND

[0002] Ball mill is one of the equipment of ore dressing such as mine stone, is widely used in building material industry, ore dressing industry, power industry, chemical industry and metallurgical industry etc. field. Ball mill has important role in ore dressing, can separate and screen different ore in mineral, separate tailings, improve the quality of selected ore. In the past, ball mill transmission part is driven by synchronous motor reducer, makes mill low-speed rotation, the friction loss and energy conversion loss in mechanical transmission are larger, and need to consume more electric energy, and synchronous motor and reducer need to be equipped with pneumatic clutch and brake system, the whole transmission chain is more complex, prone to failure and inconvenient to maintain. UTILITY MODEL CONTENT

[0003] The utility model discloses a kind of transmission device of permanent magnet motor direct drive ball mill, with the advantages of small energy conversion loss, simple structure, maintenance is convenient, solve the problems in prior art.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A kind of transmission device of permanent magnet motor direct drive ball mill, including permanent magnet motor, the output end of the permanent magnet motor is connected in one end of drum coupling, the other end of drum coupling is connected pinion, large gear wheel is installed on ball mill cylinder body by positioning bolt and bolt, pinion and large gear wheel are engaged;The side of pinion away from permanent magnet motor is equipped with slow drive motor, and the output end of slow drive motor is connected with pinion;Permanent magnet motor is fixed with high-voltage frequency converter on one side, and permanent magnet motor is electrically connected with high-voltage frequency converter.

[0006] Preferably, the pinion adopts helical gear drive.

[0007] Preferably, the discharge end of the ball mill cylinder body is provided with a discharge end bearing seat, and the main bearing provided at one end of the ball mill cylinder body is embedded into the discharge end bearing seat. The bottom of the ball mill is provided with a full-static-pressure oil station, and the full-static-pressure oil station is connected to the main bearing through a pipeline.

[0008] Preferably, the side of the permanent magnet motor is provided with a motor water cooling device, and the motor water cooling device is connected to the permanent magnet motor through a pipeline. The water pump in the motor water cooling device is made of stainless steel.

[0009] Preferably, one side of the ball mill is provided with a feeding trolley, the feeding trolley is provided with a feeding chute, one end of the feeding chute is fixed to the feeding trolley, the other end of the feeding chute is connected to the feeding port of the ball mill, and the feeding trolley is arranged on a moving track.

[0010] Preferably, the drum coupling is provided with a double-sided flange structure, one side of the drum coupling is connected to the output shaft of the permanent magnet motor through a flange, and the other side of the flange is connected to the pinion.

[0011] Preferably, the motor water cooling device is electrically connected with the high-voltage frequency converter.

[0012] Preferably, the ball mill is further connected with an abrasive sound monitoring device.

[0013] Compared with the prior art, the ball mill has the following beneficial effects:

[0014] 1. The ball mill adopts the meshing transmission of the permanent magnet motor, the pinion and the gear to rotate, so that the intermediate speed reducer is omitted, the friction loss and energy conversion loss in mechanical transmission are reduced, the speed reducer and related components are cancelled, the whole transmission chain becomes more simple and compact, potential fault points are reduced, the reliability and stability of the system are improved, and the simplified structure reduces the daily maintenance workload and makes maintenance more convenient and fast.

[0015] 2. The high-voltage frequency converter, the abrasive sound monitoring device and the automatic ball adding machine are connected in signal, the running process of the ball mill is automatically adjusted and monitored, the running signal is transmitted to the rear dispatching platform through the high-voltage frequency converter, and the overall automation of the ball mill device is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a grinding process system schematic view of the utility model;

[0017] Fig. 2 It is a whole structure top view of the utility model;

[0018] Fig. 3 It is a whole structure side view of the utility model.

[0019] In the drawing: 1, ball mill; 2, automatic ball adding machine; 3, permanent magnet motor; 4, slow drive motor; 5, pinion; 6, discharge end bearing seat; 7, drum coupling; 8, gear; 9, feeding trolley; 10, feeding chute; 11, abrasive sound monitoring device; 12, high-voltage frequency converter; 13, moving track; 14, motor water cooling device; 15, full static pressure oil station. DETAILED DESCRIPTION

[0020] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the scope of the utility model protection.

[0021] In order to solve the problem of large friction loss and energy conversion loss in mechanical transmission in the prior art, and to consume more electric energy, and the whole transmission chain is complex, prone to failure and inconvenient to maintain, the following technical scheme is given, please refer to Figs. 1-3 ;

[0022] A kind of transmission of permanent magnet motor direct drive ball mill, including permanent magnet motor 3, the transmission efficiency of permanent magnet motor 3 is about 93%, energy consumption reaches international IE4, efficiency is increased by 15% compared with " asynchronous motor + speed reducer". Starting torque is 220% of rated torque, when the working condition needs full load or overload start, no need to unload manually, it can be directly started, avoid the damage of motor caused by blocking, overload, permanent magnet motor 3 is equipped with vibration sensor, speed sensor, temperature sensor.

[0023] The output end of permanent magnet motor 3 is connected to one end of drum coupling 7, drum coupling 7 is provided with double flange structure, one side of drum coupling 7 is connected to the output shaft of permanent magnet motor 3 through flange, and the other side flange is connected to pinion 5;

[0024] The side, away from permanent magnet motor 3, of pinion 5 is provided with slow drive motor 4, the output end of slow drive motor 4 is connected to pinion 5, slow drive motor 4 is high-voltage cabinet rotation cold standby or high-voltage power failure, and performs liner repair and turning work.

[0025] Ball mill 1 barrel is provided with large gear 8 on the barrel through positioning bolt and screw bolt, pinion 5 and large gear 8 are engaged, pinion 5 adopts helical tooth transmission, is stable in work, and impact is small, adopts spray lubrication, and oil is sprayed automatically in time and quantitatively.

[0026] The discharge end of ball mill 1 barrel is provided with discharge end bearing seat 6, the main bearing arranged at one end of ball mill 1 barrel is embedded into discharge end bearing seat 6, the bottom of ball mill 1 is provided with full static pressure oil station 15, full static pressure oil station 15 is connected to main bearing through pipeline, oil is supplied to main bearing, main bearing and ball mill 1 barrel are lifted, 0.5-0.8mm oil film is formed, and friction is significantly reduced.

[0027] One side of the ball mill 1 is provided with a feeding trolley 9, and the feeding trolley 9 is provided with a feeding chute 10, one end of the feeding chute 10 is fixed on the feeding trolley 9, the other end of the feeding chute 10 is connected with the feeding port of the ball mill 1, and the feeding trolley 9 is arranged on a moving track 19.

[0028] One side of the permanent magnet motor 3 is provided with a motor water cooling device 14 for cooling, the motor water cooling device 14 is connected with the permanent magnet motor 3 through a pipeline, and the water pump in the motor water cooling device 14 is made of stainless steel.

[0029] One side of the ball mill 1 is also connected with a mill sound monitoring device 11, the running state in the cylinder of the ball mill 1 is judged through the sound in the cylinder of the ball mill 1, so as to be adjusted and optimized.

[0030] One side of the permanent magnet motor 3 is fixed with a high-voltage frequency converter 12, the high-voltage frequency converter 12 adopts Internet of Things technology according to the field sensor and the mill sound monitoring device 18, supports the access of multiple communication interfaces such as CAN, ModBus485 and PROFBUSDP, can realize communication with the upper computer, centralized control operation of multiple devices, and transmission of running data to the ground dispatching room.

[0031] The permanent magnet motor 3 is electrically connected with the high-voltage frequency converter 12, and the high-voltage frequency converter 12 is used for power supply control of the permanent magnet motor 3.

[0032] The high-voltage frequency converter 12 is also electrically connected with the motor water cooling device 14; the motor water cooling device 14 is internally provided with a cooling fan, a water pump and a matching motor, the water pump is made of stainless steel, the power supply is provided by the high-voltage frequency converter 12 and is controlled, and is connected with a centralized control system for centralized control; a water quality filter is additionally arranged at the water inlet of the permanent magnet motor 3, and antifreeze can be added when working in a low-temperature environment.

[0033] One side of the ball mill 1 is provided with an automatic ball adding machine 2, the automatic ball adding machine 2 is signal connected with the high-voltage frequency converter 12, the number of balls to be added regularly can be set according to the ball consumption of the ball mill 1 on site, and the balls can be automatically added.

[0034] Working principle: the permanent magnet motor 11 is connected with a small gear 13 through a drum type coupling 15, is engaged with a large gear 16 fixed on the cylinder of the ball mill, and directly drives the cylinder of the ball mill 1 to rotate; a slow driving motor 12 is arranged, which can provide necessary power support when the main power source is unavailable; a full static pressure oil station 41 is located at the bottom of the ball mill 1, is connected to the main bearing through a pipeline, and provides continuous and stable lubricating oil supply; the high-voltage frequency converter 12 is signal connected with the mill sound monitoring device 11 and the automatic ball adding machine 2, so as to automatically adjust and monitor the running process of the ball mill 1, and the running signal is transmitted to the rear dispatching platform through the high-voltage frequency converter 12, which is helpful to realize the overall automation of the ball mill device.

[0035] It is to be noted that, in the present text, the terms such as first and second, and the like, are used merely to differentiate one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between such entities or operations. Also, the terms "comprising", "containing", or any other variant thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0036] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the present application.

Claims

1. A transmission device of a permanent magnet motor direct drive ball mill, comprising a permanent magnet motor (3), characterized in that, The output end of the permanent magnet motor (3) is connected to one end of the drum coupling (7), the other end of the drum coupling (7) is connected to the pinion (5), the barrel of the ball mill (1) is provided with a large gear (8) through positioning bolts and clamping bolts, the pinion (5) and the large gear (8) are engaged; the side of the pinion (5) away from the permanent magnet motor (3) is provided with a slow drive motor (4), the output end of the slow drive motor (4) is connected with the pinion (5); one side of the permanent magnet motor (3) is fixed with a high-voltage frequency converter (12), the permanent magnet motor (3) is electrically connected with the high-voltage frequency converter (12).

2. A transmission device of a permanent magnet motor direct drive ball mill according to claim 1, characterized in that, The pinion (5) adopts helical gear transmission.

3. A transmission device of a permanent magnet motor direct drive ball mill according to claim 2, characterized in that, The barrel of the ball mill (1) is provided with a discharge end bearing seat (6) at the discharge end, the main bearing provided at one end of the barrel is embedded into the discharge end bearing seat (6), the bottom of the ball mill (1) is provided with a full static pressure oil station (15), the full static pressure oil station (15) is connected to the main bearing through a pipeline.

4. A transmission device of a permanent magnet motor direct drive ball mill according to claim 3, characterized in that, One side of the permanent magnet motor (3) is provided with a motor water cooling device (14), the motor water cooling device (14) is connected with the permanent magnet motor (3) through a pipeline, and the water pump in the motor water cooling device (14) is made of stainless steel.

5. A transmission device of a permanent magnet motor direct drive ball mill according to claim 4, characterized in that, One side of the ball mill (1) is provided with a feeding trolley (9), the feeding trolley (9) is provided with a feeding chute (10), one end of the feeding chute (10) is fixed on the feeding trolley (9), the other end of the feeding chute (10) is connected to the feed inlet of the ball mill (1), and the feeding trolley (9) is arranged on a moving track (13).

6. A transmission device of a permanent magnet motor direct drive ball mill according to claim 5, characterized in that, The drum coupling (7) is provided with a double-sided flange structure, one side of the drum coupling (7) is connected with the output shaft of the permanent magnet motor (3) through a flange, and the other side flange is connected with the pinion (5).

7. A transmission device of a permanent magnet motor direct drive ball mill according to claim 6, characterized in that, The motor water cooling device (14) is electrically connected with the high-voltage frequency converter.

8. A transmission device of a permanent magnet motor direct drive ball mill according to claim 7, characterized in that, The side of the ball mill (1) is also connected with a mill sound monitoring device (11). The output end of the permanent magnet motor (3) is connected to one end of the drum coupling (7), the other end of the drum coupling (7) is connected to the pinion (5), the barrel of the ball mill (1) is provided with a large gear (8) through positioning bolts and clamping bolts, the pinion (5) and the large gear (8) are engaged; the side of the pinion (5) away from the permanent magnet motor (3) is provided with a slow drive motor (4), the output end of the slow drive motor (4) is connected with the pinion (5); one side of the permanent magnet motor (3) is fixed with a high-voltage frequency converter (12), the permanent magnet motor (3) is electrically connected with the high-voltage frequency converter (12). The pinion (5) adopts helical gear transmission. The barrel of the ball mill (1) is provided with a discharge end bearing seat (6) at the discharge end, the main bearing provided at one end of the barrel is embedded into the discharge end bearing seat (6), the bottom of the ball mill (1) is provided with a full static pressure oil station (15), the full static pressure oil station (15) is connected to the main bearing through a pipeline. One side of the permanent magnet motor (3) is provided with a motor water cooling device (14), the motor water cooling device (14) is connected with the permanent magnet motor (3) through a pipeline, and the water pump in the motor water cooling device (14) is made of stainless steel. One side of the ball mill (1) is provided with a feeding trolley (9), the feeding trolley (9) is provided with a feeding chute (10), one end of the feeding chute (10) is fixed on the feeding trolley (9), the other end of the feeding chute (10) is connected to the feed inlet of the ball mill (1), and the feeding trolley (9) is arranged on a moving track (13). The drum coupling (7) is provided with a double-sided flange structure, one side of the drum coupling (7) is connected with the output shaft of the permanent magnet motor (3) through a flange, and the other side flange is connected with the pinion (5). The motor water cooling device (14) is electrically connected with the high-voltage frequency converter. The side of the ball mill (1) is also connected with a mill sound monitoring device (11).

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