Variable-power energy-saving direct driving force device

Abstract

The invention discloses a variable-power energy-saving direct driving force device, which comprises a cylindrical rotating motor, a disc type rotating motor, a shell base, an end cover and a main shaft, and is characterized in that a stator of the cylindrical rotating motor and a stator of the disc type rotating motor are fixed on the shell base; a rotor of the cylindrical rotating motor and a rotor of the disc type rotating motor are fixed on the main shaft, and the end cover is arranged on the outer side of the disc type rotating motor. By the adoption of the variable-power energy-saving direct driving force device, electric energy is greatly reduced, energy saving is remarkable, multi-stage transmission such as a gear box and a belt pulley is omitted, system efficiency is greatly improved, and therefore electricity is remarkably reduced, and operation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical machinery, and in particular to a variable power energy-saving direct drive power device. Background Art

[0002] The unit power consumption of industrial products at home and abroad is still high, and some products are very high. Low efficiency of equipment system is an important part of energy consumption, and most of the important reasons for low efficiency of equipment system are complex system structure and multi-stage transmission. For example, mixers used in chemical, construction, pharmaceutical, and food industries and many pump equipment are like this. They use multi-stage transmission such as reduction boxes and pulleys, so they consume a lot of electricity and have low operating efficiency. Both at home and abroad, we are seeking to reduce complex multi-stage transmission equipment to a few stages or direct drive mode to improve the system efficiency of equipment and reduce production and maintenance costs. Reduce energy consumption.

[0003] In order to solve the problems of low efficiency and high energy consumption of complex multi-stage transmission equipment systems, modern direct drive technology and variable frequency and variable power technology have developed rapidly. The so-called direct drive is to directly couple or connect a new type of rotating motor or linear motor to the driven load to achieve drive. Since many intermediate links in the traditional system, such as belts, chains, wire ropes, gear boxes and other components, are eliminated, the structure is greatly simplified, so that the entire system has the advantages of high efficiency and energy saving. The magnetic levitation technology makes the friction force almost equal to zero, thereby greatly improving the effectiveness of the movement, and the variable frequency and variable power technology gives the appropriate matching drive speed and power according to the needs of the site in the operation occasion, thereby greatly reducing energy consumption and improving system and operation efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a variable power energy-saving direct drive power device. Since the speed and power of the variable power energy-saving direct drive power device are adjustable, the required driving power will be reduced according to the needs of the load, so that the used electric energy is greatly reduced and the energy saving is significant. Since the direct drive technology is adopted, the gear box, pulley and other multi-stage transmissions are removed, so the electricity consumption is significantly reduced and the operating efficiency is improved.

[0005] The present invention provides a variable power energy-saving direct drive power device, comprising a cylindrical rotating motor, a disk-type rotating motor, a housing base, an end cover and a main shaft, wherein the stator of the cylindrical rotating motor and the stator of the disk-type rotating motor are fixed on the housing base, the rotor of the cylindrical rotating motor and the rotor of the disk-type rotating motor are fixed on the main shaft, and the end cover is arranged on the outside of the disk-type rotating motor.

[0006] Preferably, the number of the stators of the cylindrical rotating motor is one, the number of the stators of the disc-type rotating motor is two, and one stator of the cylindrical rotating motor and two stators of the disc-type rotating motor are fixed to the housing base.

[0007] Preferably, the number of the rotors of the cylindrical rotating motor is one, the number of the rotors of the disc-type rotating motor is two, and one rotor of the cylindrical rotating motor and two rotors of the disc-type rotating motor are fixedly mounted on the main shaft.

[0008] Preferably, the cylindrical rotating motor is a permanent magnet synchronous motor, an asynchronous induction motor or a switched reluctance motor.

[0009] Preferably, the disc-type rotating motor is a permanent magnet synchronous motor, an induction asynchronous motor and a switched reluctance motor.

[0010] Preferably, one of the cylindrical rotating motors and the two of the disc-type rotating motors operate independently or separately.

[0011] Therefore, the present invention adopts the above-mentioned variable power energy-saving direct drive power device, which greatly reduces the power consumption and significantly saves energy. The gear box, pulley and other multi-stage transmissions are removed, and the system efficiency is greatly improved, so the power consumption is significantly reduced and the operating efficiency is improved.

[0012] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of a variable power energy-saving direct drive power device of the present invention; Figure 2 This is a schematic diagram of the rotor structure of a variable power energy-saving direct drive power device of the present invention; Figure 3 This is a top view of the rotor structure of a variable power energy-saving direct drive power device of the present invention.

[0014] Reference numerals

[0015] 1. Cylindrical rotating motor; 2. Disc-type rotating motor; 3. Housing base; 4. End cover; 5. Spindle. DETAILED DESCRIPTION

[0016] The technical solution of the present invention is further described below through the accompanying drawings and embodiments.

[0017] Unless otherwise defined, technical or scientific terms used in the present invention shall have the common meanings understood by one having ordinary skills in the field to which the present invention belongs.

[0018] The words "first", "second" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprises" and similar terms mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0019] Embodiment 1

[0020] like Figure 1-3 As shown, a variable power energy-saving direct drive power device of the present invention includes a cylindrical rotating motor 1, a disk-type rotating motor 2, a housing base 3, an end cover 4 and a main shaft 5. The stator of the cylindrical rotating motor 1 and the stator of the disk-type rotating motor 2 are fixed on the housing base 3, the rotor of the cylindrical rotating motor 1 and the rotor of the disk-type rotating motor 2 are fixed on the main shaft 5, and the end cover 4 is arranged on the outside of the disk-type rotating motor 2.

[0021] The number of the stators of the cylindrical rotating electric machine 1 is one, and the number of the stators of the disc-type rotating electric machine 2 is two. The stator of the cylindrical rotating electric machine 1 and the stators of the two disc-type rotating electric machines 2 are fixed to the housing base 3 .

[0022] The number of the rotors of the cylindrical rotating electric machine 1 is one, and the number of the rotors of the disk-type rotating electric machine 2 is two. One rotor of the cylindrical rotating electric machine 1 and two rotors of the disk-type rotating electric machines 2 are fixedly mounted on the main shaft 5 .

[0023] The cylindrical rotating motor 1 is a permanent magnet synchronous motor, an asynchronous induction motor or a switched reluctance motor. The disk-type rotating motor 2 is a permanent magnet synchronous motor, an induction asynchronous motor or a switched reluctance motor. One cylindrical rotating motor 1 and two disk-type rotating motors 2 operate independently or separately.

[0024] The rotor of the variable power energy-saving direct drive power device is composed of a rotor of a cylindrical permanent magnet synchronous rotating motor and two rotors of a disc type permanent magnet synchronous rotating motor 2. It is fixedly mounted on the main shaft 5.

[0025] When an alternating current is passed through the stator winding of the variable power energy-saving direct drive device, a circumferentially rotating composite magnetic field along the circumferential air gap and the two disk air gaps is generated through the air gap between the stator and the rotor of the cylindrical rotating motor 1 and the disk-type rotating motor 2. The composite magnetic field generates an adjustable circumferential driving force to drive the main shaft 5 to rotate. The main shaft 5 with variable torque drives a load such as a mixer to operate, so that the main shaft torque can be changed according to the size of the load torque, thereby achieving the purpose of energy-saving operation.

[0026] When the power of the load needs to be reduced, one disk-type permanent magnet synchronous rotating motor can be stopped, while the other disk-type permanent magnet synchronous rotating motor and the cylindrical permanent magnet synchronous rotating motor continue to run, thereby achieving a power saving effect; when the power of the load needs to be further reduced, the device can stop another disk-type permanent magnet synchronous rotating motor, leaving only the cylindrical permanent magnet synchronous rotating motor to continue running, thereby achieving a further power saving effect; of course, when the power of the load needs to be reduced, the cylindrical permanent magnet synchronous rotating motor can also be stopped, allowing two or one disk-type permanent magnet synchronous rotating motors to continue running, thereby achieving a power saving effect.

[0027] Example 2

[0028] like Figure 1-3 As shown, the rotor of the variable power energy-saving direct drive power device is composed of a rotor of a cylindrical induction asynchronous rotating motor and two rotors of a disc-type induction asynchronous rotating motor 2. It is fixedly mounted on the main shaft 5.

[0029] When an alternating current is passed through the stator winding of the variable power energy-saving direct drive device, a circumferentially rotating composite magnetic field along the circumferential air gap and the two disk air gaps is generated through the air gap between the stator and the rotor of the cylindrical rotating motor 1 and the disk-type rotating motor 2. The composite magnetic field generates an adjustable circumferential driving force to drive the main shaft 5 to rotate. The main shaft 5 with variable torque drives a load such as a mixer to operate, so that the main shaft torque can be changed according to the size of the load torque, thereby achieving the purpose of energy-saving operation.

[0030] When the power of the load needs to be reduced, one disk-type induction asynchronous rotating motor can be stopped, while the other disk-type induction asynchronous rotating motor and the cylindrical induction asynchronous rotating motor continue to run, thereby achieving a power saving effect; when the power of the load needs to be further reduced, the device can stop another disk-type induction asynchronous rotating motor, leaving only the cylindrical induction asynchronous rotating motor to continue running, thereby achieving a further power saving effect; of course, when the power of the load needs to be reduced, the cylindrical induction asynchronous rotating motor can also be stopped, allowing two or one disk-type induction asynchronous rotating motors to continue running, thereby achieving a power saving effect.

[0031] Example 3

[0032] like Figure 1-3 As shown, the rotor of the variable power energy-saving direct drive power device is composed of a rotor of a cylindrical switched reluctance rotating motor and two rotors of a disc type switched reluctance rotating motor 2. It is fixedly mounted on the main shaft 5.

[0033] When an alternating current is passed through the stator winding of the variable power energy-saving direct drive device, a circumferentially rotating composite magnetic field along the circumferential air gap and the two disk air gaps is generated through the air gap between the stator and the rotor of the cylindrical rotating motor 1 and the disk-type rotating motor 2. The composite magnetic field generates an adjustable circumferential driving force to drive the main shaft 5 to rotate. The main shaft 5 with variable torque drives a load such as a mixer to operate, so that the main shaft torque can be changed according to the size of the load torque, thereby achieving the purpose of energy-saving operation.

[0034] When the power of the load needs to be reduced, one disk-type switched reluctance rotating motor can be stopped, while the other disk-type switched reluctance rotating motor and the cylindrical switched reluctance rotating motor continue to run, thereby achieving power saving effect; when the power of the load needs to be further reduced, the device can stop another disk-type switched reluctance rotating motor, leaving only the cylindrical switched reluctance rotating motor to continue running, thereby achieving further power saving effect; of course, when the power of the load needs to be reduced, the cylindrical switched reluctance rotating motor can also be stopped, allowing two or one disk-type switched reluctance rotating motors to continue running, thereby achieving power saving effect. ‌‌

[0035] Therefore, the present invention adopts the above-mentioned variable power energy-saving direct drive power device, which greatly reduces the power consumption and significantly saves energy. The gear box, pulley and other multi-stage transmissions are removed, and the system efficiency is greatly improved, so the power consumption is significantly reduced and the operating efficiency is improved.

[0036] The above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A variable power energy-saving direct drive power device, characterized in that: It includes a cylindrical rotating motor, a disc-type rotating motor, a housing base, an end cover and a main shaft. The stator of the cylindrical rotating motor and the stator of the disc-type rotating motor are fixed on the housing base, the rotor of the cylindrical rotating motor and the rotor of the disc-type rotating motor are fixed on the main shaft, and the end cover is arranged on the outside of the disc-type rotating motor.

2. A variable power energy-saving direct drive power device according to claim 1, characterized in that: The number of the stators of the cylindrical rotating motor is one, and the number of the stators of the disc-type rotating motor is two. One stator of the cylindrical rotating motor and two stators of the disc-type rotating motor are fixed to the housing base.

3. The variable power energy-saving direct drive power device according to claim 1, characterized in that: The number of the rotors of the cylindrical rotating electric machine is one, the number of the rotors of the disc-type rotating electric machine is two, and one rotor of the cylindrical rotating electric machine and two rotors of the disc-type rotating electric machines are fixedly mounted on the main shaft.

4. The variable power energy-saving direct drive power device according to claim 1, characterized in that: The cylindrical rotating motor is a permanent magnet synchronous motor, an asynchronous induction motor or a switched reluctance motor.

5. The variable power energy-saving direct drive power device according to claim 1, characterized in that: The disk-type rotating motor is a permanent magnet synchronous motor, an induction asynchronous motor and a switched reluctance motor.

6. The variable power energy-saving direct drive power device according to claim 1, characterized in that: The one cylindrical rotating motor and the two disc-type rotating motors are operated independently or separately.

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