CN218190020U

CN218190020U - Magnetic drive horizontal grinding machine

Info

Publication number: CN218190020U
Application number: CN202222292283.4U
Authority: CN
Inventors: 滕毅
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-30
Filing date: 2022-08-30
Publication date: 2023-01-03
Anticipated expiration: 2032-08-30

Abstract

The utility model relates to a magnetic force driving horizontal grinder, which comprises a main body and a cylinder body, wherein the cylinder body is arranged on the main body; at least one side of the cylinder body is provided with a driving ring which is sleeved on the cylinder body; a grinding stirring shaft is arranged in the barrel body, a grinding stirring disc is arranged on the grinding stirring shaft, and magnetic suspension end heads are arranged at two ends of the grinding stirring shaft; magnetic suspension bases are arranged on the inner walls of the two ends of the cylinder body; the magnetic suspension end and the magnetic suspension base are matched with each other, so that the grinding stirring shaft is kept in a suspension state in the cylinder; the grinding stirring disc is provided with a plurality of grinding stirring discs, at least one grinding stirring disc is matched with the driving ring, and magnetic non-contact driving can be realized. The utility model discloses horizontal grinding machine adopts non-contact magnetic force actuating mechanism to transmit power, avoids direct drive's inertial force, has promoted the reliability of equipment.

Description

Magnetic drive horizontal grinding machine

Technical Field

The utility model relates to a horizontal grinding machine, especially an adopt magnetic force non-contact driven horizontal grinding machine.

Background

In the prior art, horizontal grinders are generally directly driven by a motor or other power sources, materials to be processed by the horizontal grinders are usually relatively fine granular materials, and the materials are further refined to form slurry with extremely small particle size in the grinding process. Therefore, special attention needs to be paid to the sealing of the grinding mill, using a multi-layer sealing structure to ensure that the grinding mill can maintain good sealing over a long working period. The sealing performance of the horizontal grinding machine needs to adopt more sealing structure designs, the use cost of the horizontal grinding machine is increased virtually, and the sealing difficulty of the part, in the horizontal grinding machine, of the power mechanism and the grinding stirring shaft in the grinding machine, which is in transmission connection is further increased due to the high-speed rotation of the horizontal grinding machine, and more sealing measures are generally needed than other parts.

Roller seals that rotate at high speeds are very difficult because high speed operation of the equipment can result in increased local frictional heating of the seal structure, making it more likely that the more precisely sealed portions will heat, which in turn can lead to failure of the seal structure. Generally, the sealing structure of the horizontal grinding machine is maintained and maintained most frequently in normal production, even the sealing structure of the power mechanism needs to be checked and maintained every time the equipment is cleaned, and the loss of the sealing element at the parts is also the largest.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a to the easy inefficacy of the horizontal machine seal structure that grinds of prior art, lead to the not enough that equipment operation maintenance cost is high, provide a horizontal machine that grinds of magnetic drive.

The utility model discloses a solve above-mentioned technical problem, provide following technical scheme:

a magnetic driving horizontal grinder comprises a main body and a barrel, wherein the barrel is arranged on the main body; at least one side of the cylinder body is provided with a driving ring which is sleeved on the cylinder body;

a grinding stirring shaft is arranged in the barrel body, a grinding stirring disc is arranged on the grinding stirring shaft, and magnetic suspension end heads are arranged at two ends of the grinding stirring shaft; magnetic suspension bases are arranged on the inner walls of the two ends of the cylinder body; the magnetic suspension end and the magnetic suspension base are matched with each other, so that the grinding stirring shaft is kept in a suspension state in the barrel.

The grinding stirring disc is provided with a plurality of grinding stirring discs, at least one grinding stirring disc is matched with the driving ring, and magnetic non-contact driving can be realized.

The utility model discloses magnetic drive horizontal grinding machine adopts magnetic suspension structure to make the inside grinding (mixing) shaft of horizontal grinding machine keep good suspension state inside the barrel, reduces the grinding (mixing) shaft of grinding machine inside and the rotational resistance of grinding the mechanism on it, has reduced the process of grinding vibration friction loss. Meanwhile, the magnetic driving mechanism is adopted to drive the cylinder body outside, non-contact driving is achieved, the problem that a traditional direct driving shaft is difficult to seal is avoided, the equipment maintenance frequency is greatly reduced, the durability of the equipment is improved, the grinding strength is easier to adjust, and the inertia control loss of mechanical direct driving is reduced.

Preferably, the barrel is a hollow cylindrical barrel, the internal cavity also being cylindrical. The grinding stirring shaft rotates in the grinding process, and the grinding effect on each part in the grinding machine is uniform and consistent.

Further, permanent magnets are arranged on the periphery of at least one grinding stirring disc; the driving ring is an electromagnetic coil, and a variable magnetic field is formed by the electromagnetic coil, so that the grinding and stirring disc provided with the permanent magnet can rotate under the driving of electromagnetic force. Thereby drive grinding stirring shaft agent other grinding stirring dish rotatory, reach the drive grinding medium and produce the motion and grind the material.

The grinding stirring disc is driven to rotate by the variable magnetic field generated by the electromagnetic coil, so that the grinding stirring shaft in the cylinder body rotates, the grinding effect is achieved, direct contact mechanical driving is not relied on, and the sealing performance of the key part of the cylinder body of the grinding machine is improved.

Preferably, the permanent magnets arranged on the periphery of the grinding and stirring disk are uniformly distributed along the periphery of the grinding and stirring disk in an annular shape. The magnetic poles of the permanent magnets distributed in the annular shape are alternately arranged and are matched with the driving magnetic field in the driving ring, so that the rotating effect can be realized.

According to the power of the sum of the drive needs, the grinding stirring discs provided with the permanent magnets are installed at one end or two ends of the stirring shaft, the change magnetic field generated by the external drive ring is induced by 1 or 2 grinding stirring discs provided with the permanent magnets, and then the grinding stirring shaft is driven to rotate, so that magnetic non-contact drive is realized.

Preferably, the middle part of the grinding stirring shaft is provided with at least three grinding stirring disks, and the grinding stirring disks close to the front end and the rear end of the grinding stirring shaft are provided with permanent magnets; correspondingly, two driving rings are sleeved outside the barrel body, the two driving rings are electromagnetic coils, and the two driving rings are respectively in magnetic force fit with a grinding stirring disc provided with a permanent magnet. Thus, the non-contact driving of the horizontal grinding machine can be realized. Due to the fact that the two ends are used for driving simultaneously, the power of non-contact driving of the grinding stirring shaft is high, and the grinding efficiency is high. The distance between two drive rings is controlled in the device, so that the mutual influence is reduced to the minimum when the drive rings generate a variable magnetic field for driving.

Further, the driving ring is an annular magnet and is connected with the power mechanism or is integrally formed with the power mechanism. As another driving scheme of the utility model, similar to the above-mentioned solenoid driven mode, when power unit drove the drive ring pivoted, the ring magnet on the drive ring rotated thereupon, and the inside grinding agitator disk of barrel forms magnetic force non-contact drive cooperation, and then realizes continuous abrasive treatment effect.

Further, the driving ring is connected with a motor and driven by the motor. Preferably, the driving ring is rotatably mounted on the cylinder body through a fixing frame, and the driving ring is in power connection with the motor through a belt. The vibration of the motor can be isolated, and the stability of the main structure of the horizontal grinding machine is improved.

Further, the cylinder is made of glass or zirconia. Preferably, the cylinder is a hollow cylinder made of wear-resistant zirconia.

Furthermore, the magnetic suspension end head and the magnetic suspension base are provided with rare earth permanent magnet components to realize the magnetic suspension effect. Preferably, the rare earth permanent magnet is a neodymium iron boron rare earth permanent magnet or a samarium cobalt rare earth permanent magnet.

Further, the magnetic suspension end head is a rare earth permanent magnet component. Preferably, the magnetically levitating base is also a rare earth permanent magnet member.

Preferably, the magnetic suspension base can also be an electromagnet structure, and when the materials need to be ground, the electromagnet is powered on to drive the grinding stirring shaft main body to suspend.

Further, a detachable maintenance connecting mechanism is arranged in the middle of the cylinder body. The maintenance connection mechanism comprises at least one rubber sealing ring. Preferably, 2-3 rubber sealing rings are provided. Preferably, the maintenance connecting mechanism is a flange connecting structure, and a rubber sealing ring is arranged on the end face of the flange.

Preferably, the maintenance connecting mechanism is a flange connecting structure in the middle of the cylinder; at least one annular groove is arranged on the end face of the flange connecting structure, and an O-shaped sealing ring is arranged in the groove. Preferably, two concentric annular grooves are arranged on the end face of the flange connecting structure, and O-shaped sealing rings are respectively arranged in the grooves.

Preferably, bolt mounting holes of the flange connecting structure are arranged on the periphery of the O-shaped sealing ring and are annularly distributed along the end face of the flange.

Preferably, on two end faces of the flange connecting structure, one end face is provided with a positioning convex block, the other end face corresponds to the positioning groove, and the positioning convex block and the positioning groove are matched with each other. For example, clearance fit can be adopted, when the barrel is installed, an O-shaped sealing ring is embedded in advance, then the positioning lug and the positioning groove are matched, the flange structure is matched and positioned preliminarily, and then the bolts are installed in sequence for fixing.

Furthermore, a surrounding pipeline is arranged on the cylinder body, and a temperature control medium is filled into the surrounding pipeline and is used for carrying out temperature adjustment control on the cylinder body. Preferably, the surrounding pipeline is filled with cooling water, when the horizontal grinding machine works for a long time, the temperature is increased, and the cooling effect of the device system is controlled by cooling the cooling water in the surrounding pipeline.

Preferably, a cooling water jacket is arranged on the barrel and connected with a circulating cooling water system. The barrel is cooled by circulating cooling water, so that grinding materials inside the barrel are cooled, and the problem that the materials are deteriorated or damaged due to temperature rise caused by high-speed grinding is avoided. Meanwhile, the cooling treatment is also favorable for keeping the performance of the magnet used in the magnetic suspension grinding stirring shaft structure stable, and the demagnetization failure of the magnet with overhigh temperature is avoided.

Further, a fan is arranged on the barrel and used for actively dissipating heat of the barrel.

Further, a fan is arranged outside the cylinder and used for cooling the driving ring. Preferably, the drive ring is a ring magnet and is connected to a motor; the driving ring is provided with blades, and the blades are driven by the rotation of the magnetic ring to actively help the heat dissipation of the cylinder body.

Further, a feed inlet is formed in the outer wall of the barrel. And a discharge port is formed in one end, far away from the driving ring, of the barrel. The continuous grinding device can continuously feed and discharge materials, realizes the continuous grinding treatment of the materials to be ground, and ensures the automation of continuous production.

Further, the feed inlet is provided with a filter screen. Preferably, the filter screen is a detachable filter screen. And filtering and removing impurities to avoid the impurities from blocking the pipeline or damaging the precise matching structure in the horizontal grinding machine.

Further, a pressure sensor is also installed at the feed inlet. A pressure sensor is arranged at the inlet of the material to detect the pressure of the material in the cylinder body, and whether the material and the grinding medium separation screen in the cylinder body are blocked or not is indirectly judged.

Further, a temperature sensor is also installed at the discharge hole. A temperature sensor is arranged at an outlet of the material, so that the temperature of the material in the grinding cylinder body is ensured, and the danger and the damage to the material caused by overhigh temperature are avoided.

Further, the bottom of the cylinder body is connected with a base support, and the cylinder body is fixed on the ground through the base support. The supporting structure enables the barrel body and the ground to keep a certain height, so that the device is convenient to maintain at ordinary times, and is moisture-proof and corrosion-resistant.

Compared with the prior art, the utility model discloses magnetic drive horizontal grinding machine has following beneficial effect:

1. the utility model discloses horizontal grinding machine adopts non-contact magnetic force actuating mechanism transmission power, avoids direct drive's inertial force, has overcome the sealed easy problem that became invalid of traditional mechanical drive structure, has promoted the reliability of equipment.

2. The utility model discloses horizontal grinding machine magnetic drive inside grinding (mixing) shaft, grinding (mixing) shaft adopt magnetic suspension structure, belong to frictionless structure, need not to adopt special lubrication treatment, reduce the running cost; meanwhile, the self-rotation friction resistance of the equipment is small, and the grinding energy utilization rate is high.

3. The utility model discloses horizontal grinding machine seal structure only includes flange joint's sealing washer structure on the barrel, and the sealing washer is difficult to damage after the equipment fixing is accomplished.

Drawings

FIG. 1 is a schematic sectional view of a horizontal grinder according to example 1. The driving ring is driven by an external fixed-frequency or variable-frequency motor.

FIG. 2 is a schematic sectional view of the horizontal grinder of example 2. The double-end magnetic drive is adopted, the drive ring is an electromagnetic coil, an electromagnetic field is formed after the drive ring is loaded with current, and then the permanent magnet grinding stirring disc at the corresponding position in the barrel is driven to rotate.

FIG. 3 is a schematic sectional view of the horizontal mill of example 3. And a cooling water interlayer is added outside the cylinder of the horizontal grinding machine to cool the materials inside the cylinder.

FIG. 4 is a schematic view showing a flange-connected end face structure of the horizontal grinding machine of example 3.

Fig. 5 is a schematic cross-sectional view of a magnetic drive structure of the horizontal grinder of embodiment 2 (showing the drive principle, wherein the parts related to the grinding stirring shaft are omitted and not shown).

Fig. 6 is a schematic diagram of the wiring connections for the outer armature of the magnetic drive configuration shown in fig. 5 (only the winding wiring for the armature in the drive ring is shown).

Fig. 7 is an electrical circuit diagram of the horizontal grinder (the control chip adopted is K7M-DR30 UE).

The mark in the figure is: 1-cylinder, 11-cylinder end, 12-cylinder side wall, 2-driving ring, 21-armature, 3-grinding stirring shaft, 4-grinding stirring disk, 41-permanent magnet on grinding stirring disk, 51-magnetic suspension end, 52-magnetic suspension base, 6-motor, 61-belt, 7-flange connection structure, 71-rubber sealing ring, 72-positioning lug, 8-cooling water jacket, 91-feeding hole, 92-discharging hole and 10-base support.

Detailed Description

The present invention will be described in further detail with reference to test examples and specific embodiments. It should be understood that the scope of the above-described subject matter of the present invention is not limited to the following examples, and any technique realized based on the contents of the present invention is within the scope of the present invention.

Example 1

A magnetically driven horizontal grinding machine, as shown in fig. 1, has a cylindrical hollow drum mounted on the ground by a base bracket 10. A driving ring 2 is arranged on one side of the barrel body, the driving ring 2 is sleeved on the barrel body 1, and the driving ring and the barrel body form clearance fit. An electric motor 6 is arranged on the ground outside one end of the cylinder, and the driving ring 2 is connected with the electric motor 6 through a belt 61.

A grinding stirring shaft 3 is arranged in the barrel, a grinding stirring disc 4 is arranged in the middle of the grinding stirring shaft, and magnetic suspension end heads 51 are arranged at two ends of the grinding stirring shaft 3; the inner walls of the two ends 11 of the cylinder are provided with magnetic suspension bases 52; the magnetic suspension end and the magnetic suspension base are mutually matched, so that the grinding stirring shaft is kept in a suspension state in the barrel. The number of the grinding and stirring disks 4 is eight, the outer ring of the grinding and stirring disk close to one end of the motor is provided with a permanent magnet 41, the driving ring 2 is provided with a permanent magnet, the permanent magnet on the driving ring and the permanent magnet 41 on the grinding and stirring disk are matched with each other to realize a magnetic induction effect, and magnetic non-contact driving can be realized; when the motor works, the driving ring 2 is driven to rotate through the belt 61, and then the permanent magnet 41 inside the barrel is driven, so that the grinding stirring shaft 3 integrally rotates to work.

The upper part of one end of the cylinder body is provided with a discharge hole 92, the other end of the cylinder body is provided with a feed inlet 91, the feed inlet is provided with a filter screen, and materials enter the horizontal grinding machine after passing through the filter screen. Utilize the utility model discloses a horizontal grinding machine accomplishes the grinding of material fast and handles, wherein grinds the (mixing) shaft and keeps magnetic force suspension state inside the barrel, and the friction energy consumption loss of grinder self is little, and the energy utilization of equipment is high.

Example 2

As shown in fig. 2, a magnetic driving horizontal grinder has a structure similar to that of example 1, a cylindrical body 1 with a cylindrical cavity is fixedly arranged on the ground, a grinding stirring shaft 3 is also arranged in the cylindrical body, and eight grinding stirring disks 4 are arranged on the grinding stirring shaft 3. As shown in fig. 5, the driving ring 2 provided outside the side wall of the cylinder 12 has an armature with nine windings, permanent magnets 41 distributed in an annular shape are provided on the outer circumference of the grinding stirring disk at both ends of the grinding stirring shaft 3, and the electromagnetic coil driving ring 2 is sleeved on the outer portion of the cylinder corresponding to the permanent magnets. As shown in fig. 5 and 6, the drive ring 2 is provided with nine winding armatures, and by controlling the current on/off of the nine winding armatures, a continuously rotating and changing magnetic field is formed, so that the magnetic drive of the permanent magnet 41 inside the cylinder 12 is realized. As shown in fig. 6, nine winding armature wires inside the driving ring are connected to form a schematic diagram, the nine winding armatures are provided with wires and connected to form three groups of ABC passages, the three groups of ABC passages are controlled by the PLC control board to be sequentially communicated, a variable magnetic field is formed in the electromagnetic coil driving ring, and the variable magnetic field and the permanent magnet on the grinding stirring disc inside the cylinder body mutually form a magnetic driving rotation effect. And then, the grinding stirring disc is driven to rotate to realize stirring and grinding effects.

The drive coil principle shown in fig. 6 can be referred to a dc brushless motor power system. The armature 21 in the driving ring 2 is provided with grouped electromagnetic coils, and the electromagnetic coil passage is controlled to achieve the magnetic force to drive the permanent magnet 41 on the grinding stirring disc, so as to drive the internal grinding stirring shaft of the sand mill. The electromagnetic coil at the corresponding position outside corresponds to the stator of the brushless motor.

As shown in fig. 2, there are two electromagnetic coil driving rings sleeved outside the cylinder body, and the two electromagnetic coil driving rings are respectively close to the two ends of the cylinder body. Correspondingly, the grinding stirring disks arranged on the grinding stirring shaft in the cylinder body are also respectively provided with permanent magnets distributed annularly on the grinding stirring disks close to the two ends of the cylinder body. The two driving electromagnetic poles are controlled to enable the electromagnetic coil to generate a variable magnetic field, and the grinding stirring shaft is driven to work by magnetic induction. When the stirring shaft is provided with two permanent magnet rotors (i.e. as shown in fig. 2, the grinding disks at both ends of the stirring shaft are provided with permanent magnets 41), two corresponding electromagnetic coils are arranged outside the cylinder, the two driving rings 2 are connected by the same winding armature 21 and circuit, and the permanent magnets on the permanent magnets 41 on the grinding disks are arranged in the same arrangement, and when the two driving rings 2 are driven by magnetic force, the two driving rings cooperate with each other to maintain consistent magnetic field change frequency, so that coordinated and consistent driving force is realized.

As shown in figure 7, a K7M-DR30UE control chip is adopted by a control circuit of the horizontal grinding machine, and the pin connection relation of all parts adopted by the grinding machine marks the connection of all functional switches. Wherein the drive ring is connected to the M section of fig. 7, and is driven by three-phase electricity.

As shown in fig. 2, the cylinder 1 is composed of two symmetrical hollow structures, and the end faces of the two cylinders are provided with flange structures 7 which are matched with each other to form matching, so that the cylinder can be conveniently installed and maintained. As shown in fig. 4, the flange end face structure has two concentric circular grooves on the flange end face, and a static O-ring 71 is disposed in the grooves to ensure good sealing performance after the cylinder structure is mounted. The end face of the flange 7 is further provided with a positioning lug 72 (one flange end face is provided with the positioning lug 72, and the other flange end face is provided with a groove matched with the positioning lug 72 to realize quick positioning), and the periphery of the sealing ring is provided with a bolt mounting hole to be quickly positioned through the positioning lug 71. Then, the cylinder body is assembled and firmly connected through bolts distributed in an annular mode.

As shown in fig. 4, the magnetic suspension base 52 for realizing the suspension function of the grinding stirring shaft can be seen from the flange end surface to the inside of the cylinder, and the suspension state of the grinding stirring shaft is realized by adopting the magnetic poles of the permanent magnet and utilizing the repulsion function of the like poles of the magnetic poles.

Example 3

As shown in fig. 3, a magnetically-driven horizontal grinding machine is similar to the apparatus of example 2, and the difference structure between them is that the exterior of the cylinder is also sleeved with a cooling water jacket layer 8, and a cooling medium (such as water) is introduced into the water jacket layer, when the horizontal grinding machine works, the problem of excessive temperature rise is easy to occur due to the large power. The heat is taken away through the circulation of the cooling medium, so that the materials in the horizontal grinding machine can be better ensured to keep proper temperature during long-time grinding, and the materials cannot deteriorate or lose efficacy due to overhigh temperature.

Further, as shown in fig. 3, the horizontal grinder has a feed port 91 provided at an upper portion of an outer wall of the cylinder, and a discharge port 92 provided at an end of the cylinder away from the drive ring. Wherein, the feed inlet is provided with a filter screen.

Further, a pressure sensor is further installed at the feeding hole, and a temperature sensor is further installed at the discharging hole. Temperature sensor installs in the material export, monitors ejection of compact temperature, ensures the inside material temperature of grinding barrel, avoids the high temperature to produce danger and damage material. The pressure sensor is arranged at an inlet of the material, detects the pressure of the material in the cylinder body, and indirectly judges whether the material and the grinding medium separation screen in the cylinder body are blocked.

Claims

1. The magnetic-driven horizontal grinding machine is characterized by comprising a main body and a barrel, wherein the barrel is arranged on the main body; at least one side of the cylinder body is provided with a driving ring which is sleeved on the cylinder body;

a grinding stirring shaft is arranged in the barrel body, a grinding stirring disc is arranged on the grinding stirring shaft, and magnetic suspension end heads are arranged at two ends of the grinding stirring shaft; magnetic suspension bases are arranged on the inner walls of the two ends of the cylinder body; the magnetic suspension end and the magnetic suspension base are mutually matched, so that the grinding stirring shaft is kept in a suspension state in the cylinder;

the grinding stirring disc is provided with a plurality of grinding stirring discs, at least one grinding stirring disc is matched with the driving ring, and magnetic non-contact driving can be achieved.

2. The magnetically-driven horizontal grinding mill of claim 1 wherein at least one of the grinding and stirring disks is peripherally provided with permanent magnets; the driving ring is an electromagnetic coil, and a variable magnetic field is formed by the electromagnetic coil, so that the grinding stirring disc provided with the permanent magnet can rotate under the driving of electromagnetic force.

3. The magnetically-driven horizontal grinding machine of claim 2, wherein the grinding stirring shaft is provided with at least three grinding stirring disks in the middle, and the grinding stirring disks near the front and rear ends of the grinding stirring shaft are provided with permanent magnets; correspondingly, two driving rings are sleeved outside the barrel body, the two driving rings are electromagnetic coils, and the two driving rings are respectively in magnetic force fit with the grinding stirring disc provided with the permanent magnet.

4. The magnetically-driven horizontal grinding machine of claim 1, wherein the drive ring is a ring magnet and is coupled to or integrally formed with the power mechanism.

5. The magnetically-driven horizontal grinding mill of claim 4 wherein the drive ring is coupled to and driven by a motor.

6. The magnetically-driven horizontal grinding mill of claim 1 wherein the barrel is a glass or zirconia barrel.

7. The magnetically-driven horizontal grinding mill of claim 1, wherein the central section of the barrel is provided with a detachable maintenance connection mechanism; the maintenance connection mechanism comprises at least one rubber sealing ring.

8. The magnetically-driven horizontal grinding machine of claim 7, wherein the maintenance connection means is a flanged connection at the middle of the barrel; at least one annular groove is formed in the end face of the flange connecting structure, and an O-shaped sealing ring is arranged in the groove.

9. A magnetically-driven horizontal grinding machine according to claim 8 wherein the flange-engaging structure has locating projections on one end face and locating recesses on the other end face, the projections and recesses cooperating with each other.

10. The magnetically-driven horizontal grinding mill of any one of claims 1 to 9, wherein the barrel is provided with a cooling water jacket, and the cooling water jacket is connected with a circulating cooling water system.