Double-rotor grinding machine and grinding system

Abstract

The utility model discloses a double-rotor grinding machine and a grinding system. The double-rotor grinding machine comprises a rack, a double-rotor grinding wheel and a double-rotor grinding wheel, the motor is arranged on the rack, and two rotatable output shafts are arranged on the two sides of the motor; the grinding device is arranged on the machine frame, rotatable grinding rotors are arranged in the grinding devices, the grinding devices are arranged on the two sides of the motor respectively, and the two output shafts are connected with the two grinding rotors in a driving mode respectively. The grinding amount of materials is increased, the overall occupied space can be reduced by reducing the configuration of a driving source, and the production cost can be better controlled.

Description

Technical Field

[0001] The utility model relates to grinding equipment, in particular to a double-rotor grinder and a grinding system. Background Art

[0002] Traditional grinding equipment typically has a single stator and rotor. Whether it's a DC motor, synchronous motor, or asynchronous motor, only one mechanical power end drives the rotor. When grinding large quantities of material, or grinding repeatedly, multiple grinders are required. Each grinder independently grinds the material, feeding it separately. This requires a larger production space and a larger number of grinders, resulting in higher production costs. Therefore, there is an urgent need for a grinder that can increase the grinding capacity to reduce the number of grinders required during production. Utility Model Content

[0003] The purpose of the utility model is to provide a dual-rotor grinder and a grinding system to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The solution of the utility model to solve its technical problems is:

[0005] A dual-rotor grinder comprises: a frame; a motor, arranged on the frame, with two rotatable output shafts on both sides of the motor; a grinding device, arranged on the frame, with a rotatable grinding rotor inside the grinding device, the grinding devices being respectively arranged on both sides of the motor, and the two output shafts respectively driving and connecting the two grinding rotors.

[0006] This technical solution has at least the following beneficial effects: grinding devices are respectively provided on both sides of the motor, and the materials to be ground can be respectively put into the two grinding devices. During operation, the output shafts on both sides of the motor rotate, respectively driving the grinding rotors in the two grinding devices to disperse and grind the materials. In this way, the same driving source can drive the two grinding devices to work, thereby increasing the amount of material ground. By reducing the configuration of the driving source, the overall space required can be reduced, which is conducive to better control of production costs.

[0007] As a further improvement to the above technical solution, connecting tubes are respectively connected to both sides of the motor, and connecting flanges are respectively formed at the ends of the two connecting tubes away from the motor. The two grinding devices respectively include a grinding shell and a connecting end cap. One end of the two grinding shells is respectively connected to the two connecting flanges. The two grinding rotors are respectively located in the two grinding shells, and the two connecting end caps are respectively connected to the other ends of the two grinding shells. During production and assembly, it is only necessary to connect one end of the grinding shell to the connecting flange and seal the other end of the grinding shell with the connecting end cap. At this time, the grinding rotor is connected to the output shaft and is located at the end of the grinding shell. In this way, the grinding device on the other side of the motor can be installed. The connecting tube can extend the connection position between the grinding device and the motor away from the motor, thereby improving the convenience of connecting the grinding shell to the connecting flange.

[0008] As a further improvement to the above technical solution, bearings are provided on either side of the motor on the outside of the output shaft. The output shaft forms a stable rotational connection at either side of the motor. Specifically, the output shaft extends outward from either side of the motor housing, where it is stabilized by the bearings. This eliminates the need for additional output shaft stabilization structure within the grinding housing, thereby improving the ease of installation of the grinding device.

[0009] As a further improvement to the above technical solution, mechanical seals are provided between the output shaft and both sides of the motor. The mechanical seals can effectively block materials, reduce the infiltration into the motor, and increase the service life of the entire machine.

[0010] As a further improvement to the above technical solution, the two ends of the grinding shell are detachably connected to the connecting flange and the connecting end cap. The connecting cylinder can be removed from the connecting flange and the connecting end cap to allow maintenance of the grinding shell, grinding rotor and other structures, thereby improving the convenience of subsequent use and maintenance.

[0011] As a further improvement of the above technical solution, the connecting end cover is detachably connected to the frame. After the connecting end cover is connected to the frame, it can also support the end of the grinding shell away from the motor, thereby improving the stability of the entire machine during operation.

[0012] As a further improvement to the above technical solution, the two connecting cylinders are each connected to a first feed pipe, and the two connecting end caps are each connected to a first discharge pipe. In this manner, the two grinding devices can be fed and ground separately, with the material to be ground entering the grinding housing through the two first feed pipes and then being discharged outward through the two first discharge pipes after grinding.

[0013] As a further improvement to the above technical solution, a second feed pipe is connected to the connecting tube of one grinding device, a feed channel is provided within the output shaft along its axis, and a second discharge pipe is connected to the connecting end cap of the other grinding device. In this configuration, the two grinding devices can perform coarse and fine grinding respectively. The material to be ground first enters the grinding housing through the first feed pipe of one grinding device. After the first grinding is completed in that grinding device, it is fed through the feed channel of the output shaft to the other grinding device for further grinding. This allows both coarse and fine grinding to be achieved on the same machine, improving the efficiency of the step-by-step grinding process.

[0014] A grinding system comprises the above-mentioned twin-rotor grinder and at least two first premixers, wherein the first premixers are provided with a first feed port, a first return port and a first discharge port, the discharge ports of the two first premixers are respectively connected to the two first feed pipes via pipelines, and the two first discharge pipes are respectively connected to the two return ports via pipelines.

[0015] This technical solution has at least the following beneficial effects: in this grinding system, the material to be ground can be first fed into the two first premixers respectively from the first feed port, the material is premixed through the two first premixers, and then fed into the two grinding devices from the two first discharge ports. At this time, the two grinding devices can be fed and ground separately, and the material to be ground enters the grinding shell from the two first feed pipes respectively. After grinding, it is discharged outward from the two first discharge pipes and fed into the first premixer from the first return port for repeated grinding.

[0016] A grinding system includes the above-mentioned twin-rotor grinder and a second premixer, wherein the second premixer is provided with a second feed port, a second return port and a second discharge port, the second discharge port is connected to the second feed pipe through a pipeline, and the second discharge pipe is connected to the second return port through a pipeline.

[0017] This technical solution has at least the following beneficial effects: in this grinding system, the material to be ground can be first input into the second premixer from the second feed port for premixing, and then input into a grinding device from the second discharge port, and enter the grinding shell from the first feed pipe. After the first grinding is completed in the grinding device, it is sent to another grinding device from the feed channel of the output shaft for grinding. In this way, coarse grinding and fine grinding of the material can be achieved on the same machine, improving the efficiency of the step grinding of the material. After completing the fine grinding, the material is returned to the second premixer from the second return port for repeated grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief description of the drawings required for describing the embodiments. Obviously, the drawings described are only part of the embodiments of the present invention, not all of them. Those skilled in the art can also derive other design solutions and drawings based on these drawings without inventive effort.

[0019] Figure 1 It is a structural schematic diagram of a first embodiment of a dual-rotor grinding machine of the present utility model.

[0020] Figure 2 This is a structural diagram of a second embodiment of a dual-rotor grinding machine of the present invention.

[0021] Figure 3 It is a structural schematic diagram of a first embodiment of the grinding system of the present utility model.

[0022] Figure 4 This is a structural diagram of the second embodiment of the grinding system of the present utility model.

[0023] In the accompanying drawings: 1-frame, 2-motor, 21-output shaft, 22-connecting cylinder, 23-connecting flange, 24-bearing, 25-first feed pipe, 26-second feed pipe, 3-grinding device, 31-grinding rotor, 32-grinding shell, 33-connecting end cover, 34-first discharge pipe, 35-second discharge pipe, 4-first premixer, 5-second premixer. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention. In addition, all the connection relationships mentioned in the text do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connecting accessories according to the specific implementation situation. The various technical features in the invention can be combined interactively without conflicting with each other.

[0025] Reference Figure 1 A dual-rotor grinder comprises: a frame 1; a motor 2, which is arranged on the frame 1, and has two rotatable output shafts 21 on both sides of the motor 2; a grinding device 3, which is arranged on the frame 1, and has a rotatable grinding rotor 31 in the grinding device 3. The grinding devices 3 are respectively arranged on both sides of the motor 2, and the two output shafts 21 respectively drive and connect the two grinding rotors 31.

[0026] In this dual-rotor grinder, grinding devices 3 are respectively provided on both sides of the motor 2. The materials to be ground can be respectively put into the two grinding devices 3. During operation, the output shafts 21 on both sides of the motor 2 rotate, respectively driving the grinding rotors 31 in the two grinding devices 3 to disperse and grind the materials. In this way, the same driving source can drive the two grinding devices 3 to work, increasing the amount of material ground. By reducing the configuration of the driving source, the overall space required can be reduced, which is conducive to better control of production costs.

[0027] The grinding rotor 31 can be directly rotatably installed in the grinding device 3. In order to simplify the overall structure and improve the overall assembly efficiency, in this embodiment, the two sides of the motor 2 are respectively connected to the connecting cylinder 22, and the two ends of the connecting cylinder 22 away from the motor 2 are respectively formed with a connecting flange 23. The two grinding devices 3 respectively include a grinding shell 32 and a connecting end cover 33. One end of the two grinding shells 32 is respectively connected to the two connecting flanges 23. The two grinding rotors 31 are respectively located in the two grinding shells 32, and the two connecting end covers 33 are respectively connected to the other end of the two grinding shells 32. During the production and assembly of the whole, it is only necessary to connect one end of the grinding shell 32 to the connecting flange 23 and seal the other end of the grinding shell 32 with the connecting end cover 33. At this time, the grinding rotor 31 is connected to the output shaft 21 and is located at the end position of the grinding shell 32. In this way, the grinding device 3 on the other side of the motor 2 can be installed. The connecting tube 22 can extend the connection position between the grinding device 3 and the motor 2 away from the motor 2, thereby improving the convenience of connecting the grinding shell 32 to the connecting flange 23.

[0028] To improve the operational stability of the output shaft 21, in this embodiment, bearings 24 are provided on the outside of the output shaft 21, located on either side of the motor 2. The output shaft 21 forms a stable rotational connection with the motor 2. Specifically, the output shaft 21 extends outward from the motor 2 housing on either side, where the bearings 24 stabilize the output shaft 21. This eliminates the need for additional structure within the grinding housing 32 to stabilize the output shaft 21, thereby improving the ease of installation of the grinding device 3.

[0029] In some embodiments, mechanical seals are provided between the output shaft 21 and both sides of the motor 2. The mechanical seals can effectively block materials, reduce the infiltration into the motor 2, and increase the service life of the entire machine.

[0030] In some embodiments, the grinding housing 32 is detachably connected to the connecting flange 23 and the connecting end cap 33 at both ends. The connecting cylinder 22 can be removed from the connecting flange 23 and the connecting end cap 33 to facilitate maintenance of the grinding housing 32 and the grinding rotor 31, thereby improving the convenience of subsequent use and maintenance.

[0031] After the grinding housing 32 is connected to the connecting flange 23, a connecting structure can be provided between the grinding housing 32 and the frame 1 to support the grinding housing 32, or to support only the ends of the grinding housing 32. Specifically, the connecting end cap 33 is detachably connected to the frame 1. After the connecting end cap 33 is connected to the frame 1, it can also support the end of the grinding housing 32 away from the motor 2, thereby improving the stability of the entire machine during operation.

[0032] According to different grinding requirements, the whole machine can be set to different feeding forms, such as Figure 1 As shown in the first embodiment, the two connecting cylinders 22 are respectively connected to a first feed pipe 25, and the two connecting end caps 33 are respectively connected to a first discharge pipe 34. In this case, the two grinding devices 3 can be fed and ground separately. The materials to be ground enter the grinding housing 32 through the two first feed pipes 25, and after grinding, they are discharged outward through the two first discharge pipes 34.

[0033] like Figure 2 As shown in the figure, as a second embodiment, a second feed pipe 26 is connected to the connecting cylinder 22 connected to one of the grinding devices 3, a feed channel is provided in the output shaft 21 along its axial direction, and a second discharge pipe 35 is connected to the connecting end cover 33 of the other grinding device 3. In this case, the two grinding devices 3 can perform coarse grinding and fine grinding respectively. The material to be ground first enters the grinding shell 32 from the first feed pipe 25 of one grinding device 3. After the first grinding is completed in the grinding device 3, it is fed from the feed channel of the output shaft 21 to the other grinding device 3 for grinding. In this way, coarse grinding and fine grinding of the material can be achieved on the same machine, thereby improving the efficiency of the step grinding of the material.

[0034] A grinding system includes the above-mentioned twin-rotor grinder and at least two first premixers 4, wherein the first premixers 4 are provided with a first feed port, a first return port and a first discharge port, and the discharge ports of the two first premixers 4 are respectively connected to the two first feed pipes 25 through pipelines, and the two first discharge pipes 34 are respectively connected to the two return ports through pipelines.

[0035] like Figure 3As shown, as an embodiment of the grinding system, the material to be ground can be first fed into the two first premixers 4 from the first feed port, the material is premixed through the two first premixers 4, and then fed into the two grinding devices 3 from the two first discharge ports. At this time, the two grinding devices 3 can be fed and ground separately, and the material to be ground enters the grinding shell 32 from the two first feed pipes 25 respectively. After grinding, it is discharged outwardly from the two first discharge pipes 34 and fed into the first premixer 4 from the first return port to repeat the grinding.

[0036] like Figure 4 As shown, as a second embodiment of the grinding system, it includes the above-mentioned twin-rotor grinder and the second premixer 5. The second premixer 5 is provided with a second feed port, a second return port and a second discharge port. The second discharge port is connected to the second feed pipe 26 through a pipeline, and the second discharge pipe 35 is connected to the second return port through a pipeline.

[0037] In this grinding system, the material to be ground can be first input into the second premixer 5 from the second feed port for premixing, and then input into a grinding device 3 from the second discharge port, and enter the grinding shell 32 from the first feed pipe 25. After the first grinding is completed in the grinding device 3, it is sent to another grinding device 3 from the feed channel of the output shaft 21 for grinding. In this way, coarse grinding and fine grinding of the material can be achieved on the same machine, improving the efficiency of the step grinding of the material. After completing the fine grinding, the material is returned to the second premixer 5 from the second return port and ground again.

[0038] The above specifically describes the preferred embodiments of the present invention, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A twin-rotor grinding machine, characterized in that: include: Rack (1); A motor (2) is arranged on the frame (1), and two sides of the motor (2) have two rotatable output shafts (21); A grinding device (3) is arranged on the frame (1), and a rotatable grinding rotor (31) is provided in the grinding device (3). The grinding devices (3) are respectively arranged on both sides of the motor (2), and the two output shafts (21) respectively drive and connect the two grinding rotors (31).

2. A twin-rotor grinding machine according to claim 1, characterized in that: The motor (2) is connected to connecting cylinders (22) on both sides, and connecting flanges (23) are formed on the ends of the two connecting cylinders (22) away from the motor (2). The two grinding devices (3) respectively include a grinding shell (32) and a connecting end cover (33). One end of the two grinding shells (32) is respectively connected to the two connecting flanges (23). The two grinding rotors (31) are respectively located in the two grinding shells (32), and the two connecting end covers (33) are respectively connected to the other ends of the two grinding shells (32).

3. A twin-rotor grinding machine according to claim 2, characterized in that: Bearings (24) are respectively provided on the outside of the output shaft (21) at positions on both sides of the motor (2).

4. A twin-rotor grinding machine according to claim 2, characterized in that: Mechanical seals are respectively provided between the output shaft (21) and both sides of the motor (2).

5. A twin-rotor grinding machine according to claim 2, characterized in that: Both ends of the grinding shell (32) are detachably connected to the connecting flange (23) and the connecting end cover (33).

6. A twin-rotor grinding machine according to claim 2, characterized in that: The connecting end cover (33) is detachably connected to the frame (1).

7. A twin-rotor grinding machine according to claim 2, characterized in that: The two connecting cylinders (22) are respectively connected to a first feeding pipe (25), and the two connecting end covers (33) are respectively connected to a first discharging pipe (34).

8. The twin-rotor grinding machine according to claim 2, characterized in that: A second feed pipe (26) is connected to the connecting cylinder (22) connected to one of the grinding devices (3), a feeding channel is provided in the output shaft (21) along its axial direction, and a second discharge pipe (35) is connected to the connecting end cover (33) of the other grinding device (3).

9. A grinding system, characterized in that: The invention comprises the twin-rotor grinder as claimed in claim 7 and at least two first premixers (4), wherein the first premixers (4) are provided with a first feed port, a first return port and a first discharge port, the discharge ports of the two first premixers (4) are respectively connected to the two first feed pipes (25) through pipelines, and the two first discharge pipes (34) are respectively connected to the two return ports through pipelines.

10. A grinding system, characterized in that: The invention comprises the twin-rotor grinder as claimed in claim 8 and a second premixer (5), wherein the second premixer (5) is provided with a second feed port, a second return port and a second discharge port, wherein the second discharge port is connected to the second feed pipe (26) through a pipeline, and the second discharge pipe (35) is connected to the second return port through a pipeline.

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