阅读说明：本技术 一种全方位振动超声高效球磨机 (All-round vibration supersound high efficiency ball mill ) 是由 彭伟才 彭卫锋 罗奕兵 于 2020-10-13 设计创作，主要内容包括：一种全方位振动超声高效球磨机,其装置由机架、电机、同步皮带轮、同步皮带、偏心主轴、轴承、偏心轮架、球磨罐、球磨罐连接轴、气体输送管、超声波发生器、气体压力传感器、温度传感器、操作与控制器系统组成；偏心轮架一端与偏心主轴采用轴承连接,偏心轮架另一端与球磨罐连接轴之间采用铰链连接,从而偏心轮架在偏心主轴的带动下,推动球磨罐连接轴绕支点来回摆动；球磨罐连接轴为两段式结构,与偏心轮架相连段为实心杆件,与球磨罐相连段为弹性大的空心杆件,球磨罐内所装传感器与超声波发生器与操作与控制系统之间所有连线与气体输送管均经该段空心杆件从球磨罐内引出。(An omnibearing vibration ultrasonic high-efficiency ball mill comprises a frame, a motor, a synchronous belt pulley, a synchronous belt, an eccentric main shaft, a bearing, an eccentric wheel carrier, a ball milling tank connecting shaft, a gas conveying pipe, an ultrasonic generator, a gas pressure sensor, a temperature sensor and an operation and controller system; one end of the eccentric wheel frame is connected with the eccentric main shaft by a bearing, and the other end of the eccentric wheel frame is connected with the ball milling tank connecting shaft by a hinge, so that the eccentric wheel frame is driven by the eccentric main shaft to push the ball milling tank connecting shaft to swing back and forth around a fulcrum; the ball milling tank connecting shaft is of a two-section structure, the section connected with the eccentric wheel carrier is a solid rod piece, the section connected with the ball milling tank is a hollow rod piece with large elasticity, and all connecting wires and gas conveying pipes between the sensor and the ultrasonic generator and the operation and control system which are arranged in the ball milling tank are led out of the ball milling tank through the hollow rod piece.)

1. An omnibearing vibration ultrasonic high-efficiency ball mill is characterized in that the device consists of a frame, a motor, a synchronous belt pulley, a synchronous belt, an eccentric main shaft, a bearing, a rotating support, an eccentric wheel carrier, a ball milling tank connecting shaft, a connecting wire, a gas conveying pipe, an ultrasonic generator, a gas pressure sensor, a temperature sensor, a valve and an operation and controller system;

the motor adopts a variable frequency motor or a servo motor, the motor and an operation and controller system are fixed on the rack, the eccentric main shaft is fixed on the rack through a rotating support and a bearing, the motor and the eccentric main shaft adopt a synchronous belt pulley for transmission, the eccentric main shaft realizes rotation around an O point, and the rotating speed ratio of the motor to the eccentric main shaft is 1:1-3: 1;

the eccentric wheel frame is arranged in a horizontal plane, the eccentric wheel frame is connected with the eccentric section of the eccentric main shaft through a bearing, and the other connecting point of the eccentric wheel frame is connected with the ball milling tank connecting shaft through a hinge, so that the eccentric wheel frame is driven by the eccentric main shaft to push the ball milling tank connecting shaft to swing back and forth in the horizontal plane around a fixed fulcrum;

the ball milling tank connecting shaft is a rod piece which swings around a fixed pivot, one end of the rod piece is connected with the ball milling tank, and the other end of the rod piece is connected with the eccentric wheel frame through a hinge;

the ball milling tank connecting shaft is of a two-section structure and comprises a horizontal section and an inclined section, the two sections are in rigid connection, the horizontal section is a section connected with the eccentric wheel carrier and is in a horizontal position, the length ratio of the horizontal sections on the two sides of the fixed fulcrum is 1.5:1-4:1, and the horizontal length of the side connected with the ball milling tank is relatively large; the inclined section is provided with a central through hole, the inclined direction of the inclined section is outward inclined and downward relative to the horizontal section of the ball milling tank connecting shaft, and the included angle between the axis of the rod piece of the inclined section and the vertical direction is 30-70 degrees;

the ball milling tank comprises a ball milling tank body and a ball milling tank cover, and the ball milling tank cover is connected with the ball milling tank body through bolts or screws;

the ball milling tank cover comprises an inner cover and an outer cover, wherein the outer cover is connected with a ball milling tank body through bolts or screws, and the outer cover is connected with an inclined section of a ball milling tank connecting shaft through a bearing; meanwhile, a ball milling tank connecting shaft is internally protruded into the ball milling tank and is mechanically connected with an inner cover, the axial distance between the inner cover and an outer cover is not less than 2mm, and a dynamic pressure sealing ring is adopted between the circumference of the inner cover and a ball milling tank cylinder body;

the gas conveying pipe, the ultrasonic generator, the pressure sensor and the temperature sensor are all fixed on an inner cover or a baffle of the ball milling tank; connecting wires and gas conveying pipes between the ultrasonic generator, the pressure sensor and the temperature sensor and the operation and control system are led out of the ball milling tank through the baffle and a central through hole of an inclined section of a connecting shaft of the ball milling tank, and then are connected with the operation and control system through flexible connecting wires or flexible pipes;

the operation and control system comprises an ultrasonic controller, a motor rotating speed control part linked with a temperature sensor, a flow control part linked with a gas pressure sensor, a motor rotating speed adjusting and displaying part, a power control switch and a ball mill state parameter display.

2. The ball milling pot connecting shaft of claim 1 is of a two-section structure, and comprises a horizontal section and an inclined section, the two sections are rigidly connected, the horizontal section is a section connected with an eccentric wheel frame and is in a horizontal position, the length ratio of the horizontal sections on two sides of a fixed fulcrum is 1.5:1-4:1, and the horizontal length on the side connected with the ball milling pot is relatively large; the inclined section is provided with a central through hole, the inclined direction of the inclined section is outward inclined and downward relative to the horizontal section of the ball milling tank connecting shaft, and the included angle between the axis of the rod piece of the inclined section and the vertical direction is 30-70 degrees.

3. The gas delivery pipe, the ultrasonic generator, the pressure sensor and the temperature sensor according to claim 1 are all fixed on an inner cover or a baffle of the ball milling tank; connecting wires and gas conveying pipes between the ultrasonic generator, the pressure sensor and the temperature sensor and the operation and controller system are led out from the ball milling tank through the baffle and a central through hole of an inclined section of a connecting shaft of the ball milling tank, and then the connecting wires or flexible pipes are connected with the operation and control system.

4. The ball mill pot cover of claim 1, comprising an inner cover and an outer cover, wherein the outer cover is connected with the ball mill pot body by bolts or screws, and the outer cover is connected with the inclined section of the ball mill pot connecting shaft through a bearing; meanwhile, the ball milling tank is connected with the ball milling tank in a manner that the connecting shaft protrudes into the ball milling tank and is mechanically connected with the inner cover, the axial distance between the inner cover and the outer cover is not less than 2mm, and meanwhile, a dynamic pressure sealing ring is arranged between the circumference of the inner cover and the ball milling tank barrel.

Technical Field

The invention relates to powder ball milling and crushing equipment, in particular to an all-dimensional vibration ultrasonic high-efficiency ball mill.

Background

Planetary ball mills generally have four ball milling pots mounted on the same turntable, and when the turntable rotates, the ball milling pots revolve around the turntable axis and rotate around their axes, and the balls in the pots collide with each other in high-speed motion to grind and mix the sample. The planetary ball mill is designed for crushing, grinding and dispersing metal, nonmetal, organic, Chinese herbal medicine and other powder, is especially suitable for laboratory research and use, and has the working principle that the grinding material and a test material are rolled in a grinding tank at a high speed to generate strong shearing, impact and rolling on the material so as to achieve the purposes of crushing, grinding, dispersing and emulsifying the material. The planetary ball mill can grind and mix powder with different particle sizes and different materials by adopting a dry method and a wet method, the minimum particle size of the ground powder can reach 0.1 micron, various process parameter requirements can be well realized, and due to the advantages of small batch, low power consumption and low price, the planetary ball mill is the preferred equipment for carrying out research on crushing processes, new materials and coatings in schools, research units and companies. However, the planetary ball mill is easy to accumulate powder at the circumferential corner of the cylinder bottom due to gravity and centrifugal force, and the dispersibility of the powder in the ball milling tank is poor, thereby affecting the ball milling efficiency and the uniformity of the particle size of the powder.

Ball milling is a main method for realizing a mechanical alloying process, temperature is an important influence factor in the ball milling process, and the impact kinetic energy of the milling balls and the reaction heat of materials cause the temperature to rise. Therefore, the ball milling tank wall is fully utilized, the regularity of the ball milling motion room in the tank is reduced, the ball milling efficiency is improved, the consistency of the particle size is improved, the powder generates smaller temperature rise, the refining of materials and microstructures is more facilitated, and the stability of the metastable state structure of the ball milling material is facilitated.

Disclosure of Invention

The invention provides an omnibearing vibration ultrasonic high-efficiency ball mill aiming at the utilization efficiency of the wall of a ball milling tank of a planetary ball mill and the singleness of a vibration mode.

The motor adopts a variable frequency motor or a servo motor, the motor is fixed on the frame, the eccentric main shaft is fixed on the frame through a rotating support and a bearing, the motor and the eccentric main shaft are transmitted by adopting a synchronous belt pulley, so that the eccentric main shaft rotates around an O point, and the rotating speed ratio of the motor to the eccentric main shaft is 1:1-3: 1.

The eccentric wheel frame is arranged in a horizontal plane, the eccentric wheel frame is connected with the eccentric section of the eccentric main shaft through a bearing, and the eccentric wheel frame is connected with the ball milling tank connecting shaft through a hinge, so that the eccentric wheel frame is driven by the eccentric main shaft to push the ball milling tank connecting shaft to swing back and forth in the horizontal plane around a fixed fulcrum.

The ball milling tank connecting shaft is a rod piece which swings around a fixed pivot, one end of the rod piece is connected with the ball milling tank, and the other end of the rod piece is connected with the eccentric wheel frame through a hinge.

The ball milling tank connecting shaft is of a two-section structure and comprises a horizontal section and an inclined section, the two sections are in rigid connection, the horizontal section is a section connected with the eccentric wheel carrier and is in a horizontal position, the length ratio of the horizontal sections on the two sides of the fixed fulcrum is 1.5:1-4:1, and the length of the side connected with the ball milling tank is relatively large; the inclined section is provided with a central through hole, the inclined direction of the inclined section is outward inclined and downward relative to the horizontal section of the ball milling tank connecting shaft, and the included angle between the axis of the inclined section and the vertical direction is 30-70 degrees.

The ball milling tank comprises a ball milling tank body and a ball milling tank cover.

The ball milling tank cover comprises an inner cover and an outer cover, wherein the outer cover is connected with a ball milling tank body through bolts or screws, and the outer cover is connected with an inclined section of a ball milling tank connecting shaft through a bearing; meanwhile, the inclined section of the ball milling tank connecting shaft protrudes inwards into the ball milling tank and is mechanically connected with the inner cover, the axial distance between the inner cover and the outer cover is not less than 2mm, and meanwhile, a dynamic pressure sealing ring is arranged between the circumference of the inner cover and the barrel body of the ball milling tank.

The tail end of the inclined section of the ball milling tank connecting shaft protruding into the ball milling tank adopts a baffle plate to seal a central through hole of the inclined section, the baffle plate is provided with a mounting hole for a connecting wire and a gas conveying pipe, and the connecting wire, the gas conveying pipe and the baffle plate are sealed in a glue joint mode.

The gas delivery pipe, the ultrasonic generator, the pressure sensor and the temperature sensor are all fixed on an inner cover or a baffle of the ball milling tank; connecting wires and gas conveying pipes between the ultrasonic generator, the pressure sensor and the temperature sensor and the operation and control system are led out of the ball milling tank through the baffle and a central through hole of an inclined section of a connecting shaft of the ball milling tank, and then are connected with the operation and control system through flexible connecting wires or flexible pipes; therefore, the gas delivery pipe, the ultrasonic generator, the pressure sensor and the temperature sensor do not participate in the rotation of the ball milling tank in the ball milling tank, and only can repeatedly swing in the horizontal plane along with the connecting shaft of the ball milling tank.

And valves with flow regulation and cut-off functions are respectively arranged on the gas conveying pipeline and then are connected with a vacuum pump or a protective gas source.

The operation and control system comprises an ultrasonic controller, a motor rotating speed control part linked with a temperature sensor, a flow control part linked with a gas pressure sensor, a motor rotating speed adjusting and displaying part, a power control switch and a ball mill state parameter display.

The invention has the advantages that,

1.) as the connecting shaft of the ball milling tank swings back and forth in the horizontal plane under the driving of the eccentric wheel carrier, compared with the planetary ball milling, the speed change of powder and grinding balls in the ball milling tank is large, irregular motion is enhanced, the utilization of the wall area of the ball milling tank and the uniformity of powder ball milling are improved, the ball milling tank is arranged in an inclined way, vertical ball milling materials are not accumulated, the axial irregular motion of the materials in the ball milling tank is also increased, and the utilization rate of the inner wall of the ball milling tank is greatly improved;

2.) the ball mill tank is additionally provided with an ultrasonic generator, so that the ball milling efficiency is greatly improved and the phenomena of powder agglomeration, wall adhesion, ball adhesion and the like are reduced in a wet milling state;

3.) the ball milling tank is additionally provided with a gas conveying pipe and a gas pressure sensor, and the gas supply speed is adjusted to ensure that the pressure of protective gas in the tank is positive during ball milling work, so that the protection efficiency is improved, and the powder quality is improved;

4.) a temperature sensor is added in the ball milling tank, so that the temperature measurement is more accurate, and the physical properties, the structure and the like of the powder can be more accurately controlled;

5.) the ball milling tank is in transition connection with the rotating shaft by adopting a bearing, the ultrasonic generator is fixed on an inner cover and a baffle of the ball milling tank, and a connecting wire between the ultrasonic generator and the controller is arranged in a central hole of a connecting shaft of the ball milling tank to lead out the ball milling tank and an ultrasonic controller fixed on a frame, so that a connecting wire of the ultrasonic generator only swings back and forth along with the connecting shaft of the ball milling tank, the problem of winding and knotting does not exist, the circuit design difficulty and the maintenance difficulty are reduced, compared with the connection design of adopting an electric brush and the like, the cost reduction degree and the circuit reliability are greatly improved, and the connection;

6) compared with a planetary ball mill, the motion of the ball milling tank is mainly horizontal plane swing motion, and meanwhile, as the ball milling tank can freely rotate around a central shaft of the ball milling tank, powder cannot be accumulated on the tank wall of the ball milling tank at a certain position in the tank, the utilization efficiency is higher, and the consistency of the powder after ball milling is higher;

7) compared with the traditional horizontal ball mill, the ball milling tank of the ball mill simultaneously participates in reciprocating swing in the horizontal plane and rotation around the rotation shaft, and the ball milling efficiency is greatly improved.

Drawings

Fig. 1 is a schematic view of a movement mechanism of the present invention, in which (1) is an eccentric main shaft which can rotate around an O point and is made of aluminum alloy, or cast iron, or steel, (2) is a bearing, (3) is an eccentric wheel carrier which is made of a metal structural material, and (4) is a hinge which realizes the connection effect of the eccentric wheel carrier and a ball milling tank connecting shaft; (5) is a fixed pivot of a ball milling tank connecting shaft; (6) the ball milling tank connecting shaft is made of structural materials; (7) is a ball milling tank.

Figure 2 is a schematic diagram of the structure of the ball milling tank,

(1) is a gas pressure sensor; (2) the ball milling pot is characterized in that the ball milling pot is an inner cover and is made of metal structural materials, and the inner cover is mechanically connected with a connecting shaft of the ball milling pot; (3) the connecting wires are power supply and control connecting wires between the pressure sensor, the temperature sensor, the ultrasonic generator and the operation and control system; (4) a flexible pipe is adopted as the gas conveying pipe; (5) the ball milling tank connecting shaft is made of metal structural materials; (6) a deep groove ball bearing is adopted as a bearing; (7) the outer cover is made of metal structural materials; (8) is a dynamic pressure sealing ring; (9) the ball milling tank body is made of wear-resistant metal materials; (10) is a baffle plate made of structural materials; (11) an ultrasonic generator; (12) is a temperature sensor.

Detailed description of the invention

Example 1: an all-directional vibration ultrasonic ball mill,

the ball mill device consists of a frame, a motor, a synchronous belt pulley, a synchronous belt, an eccentric main shaft, a bearing, a rotary support, an eccentric wheel frame, a ball milling tank connecting shaft, a gas conveying pipe, an ultrasonic generator, a gas pressure sensor, a temperature sensor, a valve and an operation and controller system.

The motor adopts a direct-current brushless servo motor, the power of the motor is 300W, the motor, the fixed fulcrum, the rotating support of the eccentric main shaft and the operation and control system are all fixed on the frame, and the motor and the eccentric main shaft are driven by a synchronous belt pulley with the transmission ratio of 2: 1.

The eccentric wheel frame is made of aluminum alloy, and the eccentric wheel frame is arranged in a horizontal plane; the eccentric main shaft is connected with the eccentric wheel frame through a bearing, the eccentric amount of the eccentric main shaft is 35mm, the other end of the eccentric wheel frame is connected with the ball milling tank connecting shaft through a hinge, and therefore the eccentric wheel frame is driven by the eccentric main shaft to push the ball milling tank connecting shaft to swing back and forth in a horizontal plane around a fixed fulcrum.

The ball milling tank connecting shaft is a rod piece which swings around a fixed fulcrum, one end of the rod piece is connected with the ball milling tank, the other end of the rod piece is connected with the eccentric wheel frame in a hinge connection mode, and the length ratio of the horizontal sections on the two sides of the fixed fulcrum is 2.5: 1.

Ball-milling jar connecting axle contains horizontal segment and slope section, adopts rigid connection between two sections, and slope section processing has central through-hole, and its horizontal segment of ball-milling jar connecting axle relatively, the incline direction is outer oblique downwards, and slope section member axis is 50 degrees with the contained angle of vertical direction, and all connecting wires all are drawn forth in the ball-milling jar through baffle and ball-milling jar connecting axle slope section between sensor and supersonic generator and operation and the control system adorned in the ball-milling jar.

The ball milling tank comprises a ball milling tank body and a ball milling tank cover.

The ball milling tank cover comprises an inner cover and an outer cover, wherein the outer cover is connected with a ball milling tank barrel through bolts or screws, the outer cover is connected with an inclined section of a ball milling tank connecting shaft through a bearing, the inclined section of the ball milling tank connecting shaft extends into the ball milling tank and is fixedly connected with the inner cover through a mechanical method, and a dynamic pressure sealing ring is arranged between the circumference of the inner cover and the ball milling tank barrel;

the gas delivery pipe, the ultrasonic generator, the pressure sensor and the temperature sensor are all fixed on an inner cover or a baffle of the ball milling tank; connecting wires and gas conveying pipes between the ultrasonic generator, the pressure sensor and the temperature sensor and the operation and control system are led out of the ball milling tank through the baffle and a central through hole of an inclined section of a connecting shaft of the ball milling tank, and are connected with the operation and control system through flexible wires or flexible pipes.

The operation and control system comprises an ultrasonic controller, a motor rotating speed control part linked with a temperature sensor, a flow control part linked with a gas pressure sensor, and a motor rotating speed adjusting and displaying part.