CN216356410U - Permanent magnet synchronous motor direct-drive energy-saving ball mill - Google Patents
Permanent magnet synchronous motor direct-drive energy-saving ball mill Download PDFInfo
- Publication number
- CN216356410U CN216356410U CN202120569902.2U CN202120569902U CN216356410U CN 216356410 U CN216356410 U CN 216356410U CN 202120569902 U CN202120569902 U CN 202120569902U CN 216356410 U CN216356410 U CN 216356410U
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- ball mill
- permanent magnet
- rotary drum
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/24—Driving mechanisms
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/03—Machines characterised by aspects of the air-gap between rotor and stator
Abstract
The utility model provides a PMSM direct-drive energy-saving ball mill, includes the driving system of rotary drum and drive rotary drum, inside the bearing on the bearing support was located to the rotary drum both ends cover, the rotary drum both ends were provided with feed end and discharge end, its characterized in that respectively: the power system is composed of a rotor mechanism and an annular stator mechanism, the rotor mechanism is sleeved inside the annular stator mechanism, the rotor mechanism drives the rotary drum to rotate, the annular stator mechanism is composed of at least one stator mechanism, and the stator mechanism comprises a stator iron core and a stator winding wound on the iron core.
Description
Technical Field
The utility model relates to the technical field of ball mills, in particular to a direct-drive energy-saving ball mill with a permanent magnet synchronous motor.
Background
The ball mill is a device for crushing materials, the basic principle of the ball mill is that a steel ball in a cylinder is lifted to a certain height by utilizing a rotating force to be thrown down to smash the materials, the materials are crushed by mutual contact between the steel ball and the materials, the conventional ball mill needs to be provided with a complex transmission mechanism, a motor output shaft drives a rotary drum rotating shaft to rotate through a coupling, and the motor and a coupling need to occupy certain extra area, so that the occupied area of the conventional ball mill is large. The motor output shaft drives the rotating shaft of the rotary drum to rotate through the coupling, the stability of the existing ball mill is poor, the gear is easy to damage, and the maintenance is frequent. More importantly, the transmission mechanism has loss and reduced efficiency in the operation process.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a direct-drive energy-saving ball mill with a permanent magnet synchronous motor, which aims to solve the problems in the background art.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a PMSM direct-drive energy-saving ball mill, includes the driving system of rotary drum and drive rotary drum, inside the bearing on the bearing support was located to the rotary drum both ends cover, the rotary drum both ends were provided with feed end and discharge end, its characterized in that respectively: the power system is composed of a rotor mechanism and an annular stator mechanism, the rotor mechanism is sleeved inside the annular stator mechanism, the rotor mechanism drives the rotary drum to rotate, the annular stator mechanism is composed of at least one stator mechanism, and the stator mechanism comprises a stator iron core and a stator winding wound on the iron core.
Further, when the number of the stator mechanisms is larger than 1, the stator mechanisms comprise a fan-shaped shell and stator cores in the fan-shaped shell, stator windings wound around the cores are arranged on the stator cores, and the fan-shaped shell are integrally spliced to form an annular structure.
Furthermore, the fan-shaped shell is connected with the fan-shaped shell through a connecting piece I.
Furthermore, a limiting rolling device is arranged in a gap between the rotor mechanism and the annular stator mechanism, and the limiting rolling device keeps a gap between the stator mechanism and the annular rotor mechanism and simultaneously ensures normal relative rotation between the annular stator mechanism and the rotor mechanism.
Furthermore, the rolling device comprises rolling bodies and a retainer for limiting the rolling bodies, the rolling bodies roll between the rotor mechanism and the stator mechanism, and the relative position of the rolling bodies is ensured when the retainer rolls on the rolling bodies.
Furthermore, the rolling device consists of a roller and a rotating shaft connected with the roller, the rotating shaft is arranged on the rotor structure or the stator structure, and the roller rolls when the rotor mechanism and the stator mechanism rotate relatively to limit a gap between the rotor mechanism and the stator mechanism.
Furthermore, the power system also comprises a support frame for the stator mechanism, and the support frame is connected with the stator mechanism through a connecting piece II
Furthermore, the connecting piece II is a connecting rod, a connecting plate or a connecting device for connecting the supporting frame with the stator mechanism.
Furthermore, connecting piece II is the tractive bradyseism device, and tractive bradyseism device one end is connected with braced frame, and the other end is connected with stator mechanism, sets up damping device on the tractive bradyseism device for the amplitude that transmits to stator mechanism when buffering and consuming the rotary drum and rotate releases the amplitude volume of rotary drum.
Furthermore, the damping device is a contractible steel wire rope, a spring or a spring damper, one end of the two ends of the steel wire rope, the spring or the spring damper is connected with the stator mechanism, and the other end of the steel wire rope, the spring or the spring damper is connected with the supporting frame.
Further, damping device includes cushion chamber, elastic component, connecting rod I and connecting rod II, and I one end of connecting rod is hung in the last port of cushion chamber, and the other end is connected with braced frame, and II one ends of connecting rod are hung in the port under the cushion chamber, and the other end is connected with the stator, and the tip that II link were hung in the cushion chamber is provided with the elastic component under the cushion chamber between the port.
Furthermore, a length adjusting device is arranged between the damping device and the stator mechanism and used for adjusting the tightness of the stator mechanism and the traction buffer mechanism.
Furthermore, length adjustment device includes adjusting collar and adjusting nut, and adjusting nut is fixed in the adjusting collar both ends, and the adjusting nut is passed and extends to in the adjusting collar to the tip of the adjusting screw thread of adjusting pole I that the damping device was last to set up, and the adjusting nut that the adjusting screw thread on adjusting pole II that the adjusting collar other end set up passed the adjusting collar other end extends to in the adjusting collar, and the adjusting screw thread on adjusting pole I is each other with adjusting the adjusting screw thread on adjusting pole II and is the reverse.
Compared with the prior art, the utility model has the following advantages:
1. after the power system is introduced with alternating current, the magnetic field of the stator mechanism induces the magnetic field of the rotor mechanism, the rotor mechanism directly drives the rotary drum to rotate, the permanent magnet synchronous motor is formed under the action of the rotating magnetic field, the rotor mechanism directly drives the rotary drum to rotate, a complex transmission mechanism in the prior art is omitted, gear transmission consumption is avoided, and meanwhile, the equipment is more stable in operation.
2. Through setting up spacing rolling device, keep minimum clearance between stator mechanism and the rotor mechanism, be difficult to mechanical chamber cleaning, manufacturing cost can be practiced thrift to both minimum clearances, and the design of minimum clearance has obtained the purpose that uses the electric quantity less in long-time operation process, and the effect of economizing on electricity is more obvious.
3. The annular stator mechanism can be formed by splicing one or more stator mechanisms, the number of the stator mechanisms can be flexibly adjusted according to the size of the rotary drum, the whole annular stator mechanism is broken into parts, and the production, the transportation and the assembly are convenient.
4. Through setting up tractive bradyseism device for the amplitude that transmits to the stator mechanism when buffering and consuming the rotary drum and rotate releases the amplitude volume of rotary drum, makes equipment operation more stable.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view A of FIG. 1;
FIG. 3 is a schematic structural diagram of a spacing rolling device;
FIG. 4 is a schematic structural diagram of a connecting piece I;
FIG. 5 is another schematic structural diagram of the rolling limit device;
FIG. 6 is a view showing the construction of the pulling shock absorber.
Reference numerals: 1. the device comprises a rotary drum, 2, a bearing support, 3, a feeding end, 4, a discharging end, 5, a rotor mechanism, 6, an annular stator mechanism, 7, a stator mechanism, 8, a fan-shaped shell, 9, connecting pieces I and 10, rolling bodies, 11, a retainer, 12, rollers, 13, a rotating shaft, 14, a supporting frame, 15, connecting pieces II and 16, a traction shock absorption device, 17, a buffer cavity, 18, an elastic piece, 19, connecting rods I and 20, connecting rods II and 21, an adjusting sleeve, 22 and an adjusting nut.
Detailed Description
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The technical scheme of the utility model is described in detail by combining the attached drawings, the permanent magnet synchronous motor direct-drive energy-saving ball mill comprises a rotary drum 1 and a power system for driving the rotary drum, two ends of the rotary drum are sleeved in bearings on a bearing support 2, two ends of the rotary drum are respectively provided with a discharge end 3 and a feed end 4, materials enter from the feed ends during working, the rotary drum rotates and is subjected to ball milling in the rotary drum and then is discharged from the discharge ends, the power system for driving the rotary drum to rotate consists of a rotor mechanism 5 and an annular stator mechanism 6, the rotor mechanism is sleeved in the annular stator mechanism, the annular stator mechanism can be one, the rotor mechanism is sleeved in the annular stator mechanism, for the convenience of installation and transportation of a rotor, the annular stator mechanism can also consist of a plurality of stator mechanisms 7, for example, the annular stator mechanism consists of two stator mechanisms, for the convenience of installation and transportation of a rotor, the stator mechanism can be produced and manufactured according to one half of the circumference in a block, then the rotor mechanism is installed and spliced into a whole annular stator mechanism, the rotor mechanism is sleeved inside the annular stator mechanism and drives the rotary drum to rotate, the rotary drum mechanism can be directly arranged on the surface of the rotary drum in a surrounding mode and is in contact with the surface of the rotary drum, or the rotary drum is in screwed connection with the surface of the rotary drum by using a flange, or the rotary drum indirectly drives the rotary drum to rotate by using a plurality of connecting devices, if the surfaces of the rotor mechanism and the rotary drum are respectively provided with the connecting devices of the flange, the rotor mechanism drives the rotary drum to rotate by the transmission of the flange, or the rotor mechanism drives one rotating shaft connecting device which is in concentric fit connection with the rotary drum, the rotor mechanism indirectly drives the rotary drum to rotate by the rotating shaft connecting device, the stator mechanism comprises a stator core and a stator winding wound on the stator core, the rotor mechanism can be composed of a plurality of permanent magnets attached to the surface of the rotary drum, or the rotor mechanism is composed of the rotor core and the permanent magnets distributed on the rotor core, the rotor core is sleeved outside the rotating drum, after alternating current is introduced into a power system, a gap between the stator core and the permanent magnet generates a rotating magnetic field, the stator magnetic field induces the rotor magnetic field and then the rotating drum is directly driven to rotate by the rotor mechanism under the action of the rotating magnetic field, and the rotating magnetic field interacts with a magnetic pole field of the permanent magnet on the rotor mechanism to generate electromagnetic force to drive the rotating drum to rotate.
The annular stator mechanism can be integrally wound outside the rotor mechanism, when the diameter of the rotary drum is larger, in order to save production cost and transportation cost, and the factory manufacture and field assembly are convenient, the annular stator mechanism also can be formed by combining a plurality of split stator mechanisms, when the number of the stator mechanisms is larger than 1, the stator mechanism specifically comprises a fan-shaped shell 8 and a stator iron core in the fan-shaped shell, the stator iron core is provided with a stator winding for winding the iron core, the fan-shaped shell and the fan-shaped shell are integrally spliced into an annular structure, and the stator mechanism is provided with a splicing structure, so that shells with different numbers can be selected according to the diameter sizes of different rotary drums and the number of required magnetic poles,
there is independent iron core and coil to splice into whole annular stator mechanism in the casing, be connected through connecting piece I9 between fan-shaped casing and the fan-shaped casing, make detachable splice into the annular appearance of whole stator mechanism between the fan-shaped casing, the connecting piece can be holistic ring flange, during the installation, the ring flange sets up in one side or both sides of fan-shaped casing, ring flange accessible screw is connected with the annular casing, fan-shaped casing also can be sectional connection pad, can be according to the needs of difference, two or more fan-shaped casings are connected simultaneously to connection pad accessible bolt, make the whole annular appearance that splices into whole stator mechanism of a plurality of fan-shaped casings, the convenient spiro union of sectional connection pad partition is convenient, the annular card is solid a plurality of fan-shaped casings firm reliable.
In the rolling process of the rotary drum, vibration or jumping can occur, in order to ensure that the rotor mechanism and the annular stator mechanism roll at relative positions, a limiting rolling device is arranged in a gap between the rotor mechanism and the annular stator mechanism, a rolling body of the limiting rolling device rolls between the stator mechanism and the annular rotor mechanism, and the gap between the rotor mechanism and the annular stator mechanism can be kept while normal relative rotation between the annular stator mechanism and the rotor mechanism is ensured; the specific structure of the rolling device comprises rolling bodies 10 and a retainer 11 for limiting the rolling bodies, wherein the rolling bodies roll between a rotor mechanism and a stator mechanism, and the retainer ensures the relative positions of the rolling bodies when the rolling bodies roll; the other concrete structure of the concrete rolling device consists of a rolling device and a rotating shaft 13, wherein the rolling device consists of a roller 12 and a rotating shaft 13 connected with the roller, the rotating shaft is arranged on a rotor structure or a stator structure, and the roller rolls when the rotor mechanism and the stator mechanism rotate relatively to limit a gap between the rotor mechanism and the stator mechanism; when the pivot sets up in stator mechanism, the pivot sets up on the casing or sets up on connecting piece I, the pivot can set up in one side of casing, also can set up in the both sides of casing in order to guarantee rolling stability, the gyro wheel rolls on rotor mechanism, the gyro wheel can roll on rotor core on rotor mechanism this moment, do not contact with the permanent magnet, the gyro wheel also can roll on the rotary drum surface, when the pivot sets up on rotor mechanism, the pivot can set up in one side of rotor mechanism, also can set up in the both sides of rotor mechanism in order to guarantee rolling stability, the gyro wheel rolls on stator mechanism, the gyro wheel can roll at the fan-shaped casing on stator mechanism this moment.
The power system also comprises a supporting frame 14 used for the stator mechanism, the supporting frame is connected with the stator mechanism through a connecting piece II 15, the connecting piece II is a connecting rod, a connecting plate or a connecting device for connecting the supporting frame with the stator mechanism, the stator mechanism and the supporting frame form hard connection or elastic connection capable of moving relatively through the connecting piece II,
the connecting piece II is a traction cushioning device 16, one end of the traction cushioning device is connected with the supporting frame, the other end of the traction cushioning device is connected with the stator mechanism, a damping device is arranged on the traction cushioning device, the supporting frame is connected with the stator mechanism through the traction cushioning device, one end of the traction cushioning device is connected with the supporting frame, the other end of the traction cushioning device is connected with the stator mechanism, a damping device is arranged on the traction cushioning device, when the rotary drum is started, stopped or rotates, large vibration can be generated, the vibration is transmitted to the stator mechanism through the rotor mechanism and the roller wheel in sequence and is transmitted to the supporting frame through the stator mechanism, the vibration transmitted to the stator mechanism when the rotary drum rotates is buffered and consumed through the damping device, the vibration amplitude of the rotary drum is released, and the damping device is a contractible steel wire rope, a spring or a spring damper, the steel wire rope, the stator mechanism is arranged on the supporting frame, and the damping device is arranged on the stator mechanism, One end of the two ends of the spring or the spring damper is connected with the stator mechanism, the other end of the two ends of the spring or the spring damper is connected with the supporting frame, the damping device on the traction shock absorption device can be in various forms, the damping device can be a contractible steel wire rope, the spring damper or other devices for reducing the energy consumption of the amplitude, when the damping device is a spring, one end of the spring is connected with the supporting frame, the other end of the spring is connected with the stator mechanism, when the damping device is a contractible steel wire rope, one end of the steel wire rope can be connected with the supporting frame, the other end of the steel wire rope can be connected with the stator mechanism, and when the stator mechanism vibrates, the damping device buffers and consumes the amplitude generated by the rotation of the rotary drum.
Another concrete structure of damping device can include cushion chamber 17, elastic component 18, connecting rod I19 and connecting rod II 20, I one end of connecting rod is hung in the last port of cushion chamber, the other end is connected with braced frame, II one ends of connecting rod are hung in the port under the cushion chamber, the other end is connected with the stator, be provided with the elastic component between II tip of hanging the cushion chamber of connecting rod and the port under the cushion chamber, the optional dish spring of elastic component, a spring, the block rubber, specific elastic subassembly such as polytetrafluoroethylene piece, when stator mechanism produces the radial runout, through the transmission of energy, make II tip of hanging the cushion chamber of connecting rod stretch or extrusion elastic component, the elastic component and then comes the energy that the consumption vibration produced.
Be provided with length adjustment device between damping device and the stator mechanism for adjust stator mechanism and tractive buffer gear's elasticity, specific length adjustment device includes adjusting collar 21 and adjusting nut 22, adjusting nut is fixed in adjusting collar both ends, the adjusting screw thread's of adjusting pole I that sets up on the damping device tip passes adjusting nut and extends to in the adjusting collar, adjusting nut that adjusting collar other end set up on adjusting the pole II the adjusting screw thread's of adjusting that the adjusting collar other end tip passes the adjusting nut of adjusting the collar other end and extends to in the adjusting collar, adjusting screw thread on adjusting pole I and adjusting screw thread on adjusting the pole II are each other reverse.
When damping device is wire rope, spring or spring damper, adjust I one end of pole and be connected with wire rope, spring or spring damper's one end, the tip of adjusting the screw thread that the other end of adjusting pole I set up passes adjusting nut and extends to in the adjusting sleeve, adjusts II tip that do not set up adjusting the screw thread and is connected with stator mechanism. The distance between the adjusting rod I and the adjusting rod II can be increased or reduced through the rotating connecting sleeves in different directions, and the effect of adjusting the tightness between the damping device and the motor device is further achieved; when damping device is provided with connecting rod I and connecting rod II, connecting rod I can be connected with the tip that does not set up the condition screw thread on adjusting pole I, perhaps the lower tip of connecting rod I can directly replace adjusting pole I, sets up the regulation screw thread opposite with adjusting pole II regulation screw thread direction at the lower tip of connecting rod I to make the lower tip of connecting rod I pass adjusting nut and extend to in the adjusting collar, adjust the tip that II did not set up the regulation screw thread of pole and be connected with stator mechanism.
While there have been shown and described what are at present considered the fundamental principles of the utility model, its essential features and advantages, the utility model further resides in various changes and modifications which fall within the scope of the utility model as claimed.
Claims (13)
1. The utility model provides a PMSM direct-drive energy-saving ball mill, includes the driving system of rotary drum and drive rotary drum, inside the bearing on the bearing support was located to the rotary drum both ends cover, the rotary drum both ends were provided with feed end and discharge end, its characterized in that respectively: the power system is composed of a rotor mechanism and an annular stator mechanism, the rotor mechanism is sleeved inside the annular stator mechanism, the rotor mechanism drives the rotary drum to rotate, the annular stator mechanism is composed of at least one stator mechanism, and the stator mechanism comprises a stator iron core and a stator winding wound on the iron core.
2. The permanent magnet synchronous motor direct-drive energy-saving ball mill according to claim 1, characterized in that: when the number of the stator mechanisms is larger than 1, the stator mechanisms comprise fan-shaped shells and stator cores in the fan-shaped shells, stator windings wound with the cores are arranged on the stator cores, and the fan-shaped shells are integrally spliced into an annular structure.
3. The permanent magnet synchronous motor direct-drive energy-saving ball mill according to claim 2, characterized in that: the fan-shaped shell is connected with the fan-shaped shell through a connecting piece I.
4. The permanent magnet synchronous motor direct-drive energy-saving ball mill according to claim 1 or 2, characterized in that: and a spacing rolling device is arranged in a gap between the rotor mechanism and the annular stator mechanism, and the spacing rolling device keeps a gap between the stator mechanism and the annular rotor mechanism and simultaneously ensures normal relative rotation between the annular stator mechanism and the rotor mechanism.
5. The permanent magnet synchronous motor direct-drive energy-saving ball mill according to claim 4, characterized in that: the rolling device comprises rolling bodies and a retainer for limiting the rolling bodies, the rolling bodies roll between the rotor mechanism and the stator mechanism, and the retainer ensures the relative positions of the rolling bodies when the rolling bodies roll.
6. The permanent magnet synchronous motor direct-drive energy-saving ball mill according to claim 4, characterized in that: the rolling device consists of a roller and a rotating shaft connected with the roller, the rotating shaft is arranged on the rotor structure or the stator structure, and the roller rolls when the rotor mechanism and the stator mechanism rotate relatively to limit a gap between the rotor mechanism and the stator mechanism.
7. The permanent magnet synchronous motor direct-drive energy-saving ball mill according to claim 1 or 2, characterized in that: the power system also comprises a support frame for the stator mechanism, and the support frame is connected with the stator mechanism through a connecting piece II.
8. The permanent magnet synchronous motor direct-drive energy-saving ball mill according to claim 7, characterized in that: the connecting piece II is a connecting rod, a connecting plate or a connecting device for connecting the supporting frame with the stator mechanism.
9. The permanent magnet synchronous motor direct-drive energy-saving ball mill according to claim 8, characterized in that: and the connecting piece II is a traction cushioning device, one end of the traction cushioning device is connected with the supporting frame, the other end of the traction cushioning device is connected with the stator mechanism, and a damping device is arranged on the traction cushioning device and used for buffering and consuming the amplitude transmitted to the stator mechanism when the rotary drum rotates, so that the amplitude of the rotary drum is released.
10. The permanent magnet synchronous motor direct-drive energy-saving ball mill according to claim 9, characterized in that: the damping device is a contractible steel wire rope, a spring or a spring damper, one end of each of two ends of the steel wire rope, the spring or the spring damper is connected with the stator mechanism, and the other end of each of the two ends of the steel wire rope, the spring or the spring damper is connected with the supporting frame.
11. The permanent magnet synchronous motor direct-drive energy-saving ball mill according to claim 9, characterized in that: damping device includes cushion chamber, elastic component, connecting rod I and connecting rod II, and I one end of connecting rod is hung in the cushion chamber and is gone up the port, and the other end is connected with braced frame, and II one ends of connecting rod are hung in the cushion chamber port down, and the other end is connected with the stator, and II tip of hanging in the cushion chamber of connecting rod are provided with the elastic component under the cushion chamber between the port.
12. The permanent magnet synchronous motor direct-drive energy-saving ball mill according to claim 9, 10 or 11, characterized in that: and a length adjusting device is arranged between the damping device and the stator mechanism and is used for adjusting the tightness of the stator mechanism and the traction buffer mechanism.
13. The permanent magnet synchronous motor direct-drive energy-saving ball mill according to claim 12, characterized in that: the length adjusting device comprises an adjusting sleeve and adjusting nuts, the adjusting nuts are fixed at two ends of the adjusting sleeve, the end part of adjusting threads of an adjusting rod I arranged on the damping device penetrates through the adjusting nuts and extends into the adjusting sleeve, the end part of adjusting threads on an adjusting rod II arranged at the other end of the adjusting sleeve penetrates through the adjusting nuts at the other end of the adjusting sleeve and extends into the adjusting sleeve, and the adjusting threads on the adjusting rod I and the adjusting threads on the adjusting rod II are opposite.
Applications Claiming Priority (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120244719 | 2021-01-28 | ||
| CN2021202458999 | 2021-01-28 | ||
| CN202120245899 | 2021-01-28 | ||
| CN202120244720 | 2021-01-28 | ||
| CN202120245947 | 2021-01-28 | ||
| CN2021202447195 | 2021-01-28 | ||
| CN2021202459474 | 2021-01-28 | ||
| CN2021202447208 | 2021-01-28 |
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| Publication Number | Publication Date |
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| CN216356410U true CN216356410U (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110299137.1A Pending CN112865462A (en) | 2021-01-28 | 2021-03-20 | Permanent magnet synchronous motor direct-drive energy-saving ball mill |
| CN202120569902.2U Active CN216356410U (en) | 2021-01-28 | 2021-03-20 | Permanent magnet synchronous motor direct-drive energy-saving ball mill |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110299137.1A Pending CN112865462A (en) | 2021-01-28 | 2021-03-20 | Permanent magnet synchronous motor direct-drive energy-saving ball mill |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113364198B (en) * | 2021-08-09 | 2021-11-02 | 西南交通大学 | Wagon axle power generation device |
| CN115159847B (en) * | 2022-07-13 | 2023-08-25 | 江苏拜富科技股份有限公司 | Light porcelain leadless zinc-free white glaze and preparation method thereof |
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- 2021-03-20 CN CN202110299137.1A patent/CN112865462A/en active Pending
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