A double-rotor permanent magnet generator with forward and reverse speed

Abstract

The present invention discloses a forward and reverse double-speed dual-rotor permanent magnet generator, comprising a workbench, a generator housing, a generator inner rotor, a first driven bevel gear, a second driven bevel gear and a driving bevel gear, wherein a permanent magnet steel is connected to the generator housing, the generator inner rotor comprises an inner shaft and a coil winding, the inner shaft is connected to the end cover of the generator housing through a bearing, and both ends of the inner shaft are connected to the workbench through a seat bearing; the first driven bevel gear and the second driven bevel gear are arranged on both sides of the first seat bearing, the first driven bevel gear is connected to the inner shaft, and the second driven bevel gear is connected to the generator housing; the driving bevel gear is meshed with the first driven bevel gear and the second driven bevel gear at the same time, and the driving bevel gear is connected to a driving device. Under the working condition of the same input speed, the power generation efficiency of the generator of the present invention is twice as high as that of the traditional generator, the application field is wider, the input speed is lower, and the energy is more saved, which effectively solves the problem of low power generation efficiency of the existing generator.

Description

Technical Field

[0001] The invention belongs to the technical field of power generation equipment and relates to a permanent magnet generator, in particular to a forward and reverse double-speed dual-rotor permanent magnet generator. Background Art

[0002] A generator refers to a mechanical device that converts other forms of energy into electrical energy. Its working principle is based on the law of electromagnetic induction and the law of electromagnetic force. It uses external mechanical force to drive the conductor coil to rotate in the magnetic field, and continuously cuts the magnetic lines of force to generate induced electromotive force, output electricity, and achieve the purpose of energy conversion.

[0003] At present, the generator is mainly composed of two parts: the stator and the rotor. Traditional power generation equipment generally has a fixed stator and a rotor that rotates relative to the stator. The rotor rotates in the slots of the stator to cut the magnetic flux lines to generate electricity. The amount of electricity generated is proportional to the speed of the rotor. For the same generator, the faster the rotor rotates, the greater the power generation. However, when the rotor speed is very low, the amount of electricity generated is small, which restricts the development prospects of low-speed power generation. Summary of the invention

[0004] The purpose of the present invention is to provide a forward and reverse double-speed dual-rotor permanent magnet generator with ingenious design, simple structure, small energy loss and high power generation efficiency in order to solve the problems existing in the prior art. Under the condition of the same input speed, the power generation efficiency of the dual-rotor permanent magnet generator is twice as high as that of the traditional generator. Therefore, it has a wider application field, requires a lower input speed, and saves more energy, effectively solving the problem of low power generation efficiency of the existing generator.

[0005] The technical solution adopted by the present invention to achieve the above-mentioned purpose is: a forward and reverse double-speed dual-rotor permanent magnet generator, comprising a workbench, a generator housing and a generator inner rotor positioned in the generator housing, the inner side wall of the generator housing is connected to a permanent magnet steel, the generator inner rotor comprises an inner shaft and a coil winding, the coil winding is connected to the outer side of the middle part of the inner shaft, the inner shaft is rotatably connected to the two end covers of the generator housing through bearings, and the two ends of the inner shaft extend to the outer side of the generator housing respectively, and the two ends of the inner shaft extending to the outer side of the generator housing are respectively connected to the workbench through a first seat bearing and a second seat bearing, and the inner end of the second seat bearing at one end is connected to the workbench through a first seat bearing and a second seat bearing. A slip ring and a brush connected to the coil winding are also provided on the outside of the shaft; the shaft also includes a first driven bevel gear, a second driven bevel gear and a driving bevel gear, the first driven bevel gear and the second driven bevel gear are symmetrically arranged on both sides of the first seat bearing, and the first driven bevel gear is connected to the inner shaft by a key, and the second driven bevel gear is connected to the end cover of the generator housing; the driving bevel gear is located between the first driven bevel gear and the second driven bevel gear, and the driving bevel gear is meshed with the first driven bevel gear and the second driven bevel gear at the same time, and the transmission shaft of the driving bevel gear is positioned on the workbench through the third seat bearing, and is connected to the driving device through the transmission.

[0006] A further technical solution of the present invention is that the first bearing seat, the second bearing seat and the third bearing seat are connected to the workbench through insulating rubber pads respectively.

[0007] A further technical solution of the present invention is that the parameters of the first driven bevel gear and the second driven bevel gear are the same.

[0008] A further technical solution of the present invention is that the driving device is a hydraulic impeller or a wind impeller or a fuel engine.

[0009] The forward and reverse double-speed dual-rotor permanent magnet generator of the present invention has the following beneficial effects due to the above structure:

[0010] Compared with the traditional generator, the generator of the present invention has no stator, and its inner rotor and the generator shell rotate at the same speed at the same time, and the rotation direction of the inner rotor of the generator and the generator shell are opposite. The inner rotor of the generator and the generator shell are superimposed at the same speed and in the opposite direction, so that the input speed of the generator is the same, and the superposition of the speed is twice that of the generator, so that the power of the generator is higher and the power generation efficiency is higher. The generator of the present invention has been proved through experiments that at the same input speed, the power generation efficiency of the forward and reverse double-speed dual-rotor permanent magnet generator of the present invention is twice that of the conventional inner rotor (or outer rotor) single rotor generator, so it has a wider application field, requires a lower input speed, higher efficiency, and more energy saving.

[0011] The following is a further description of a forward and reverse double-speed dual-rotor permanent magnet generator of the present invention in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a forward and reverse double-speed dual-rotor permanent magnet generator of the present invention;

[0013] Figure 2 It is a structural schematic diagram of another aspect of the present invention;

[0014] Figure 3 is a top view of the present invention;

[0015] Figure 4 is a side cross-sectional view of the present invention;

[0016] Explanation of the accompanying numbers: 1-workbench, 2-slip ring, 3-inner shaft, 4-brush, 5-second seat bearing, 6-generator housing, 7-second driven bevel gear, 8-first seat bearing, 9-first driven bevel gear, 10-driving bevel gear, 11-transmission shaft, 12-third seat bearing, 13-transmission, 14-bearing, 15-permanent magnet steel, 16-coil winding. DETAILED DESCRIPTION

[0017] like Figures 1 to 4 As shown, the present invention is a forward and reverse double-speed dual-rotor permanent magnet generator, including a workbench 1, a generator housing 6, a generator inner rotor positioned in the generator housing 6, a first driven bevel gear 9, a second driven bevel gear 7 and a driving bevel gear 10, wherein the parameters of the first driven bevel gear 9 and the second driven bevel gear 7 are the same.

[0018] The inner wall of the generator housing 6 of the present invention is connected with a permanent magnet steel 15, the inner rotor of the generator includes an inner shaft 3 and a coil winding 16, the coil winding 16 is connected to the outer side of the middle part of the inner shaft 3, the inner shaft 3 is rotatably connected to the two end covers of the generator housing 6 through bearings 14, and the two ends of the inner shaft 3 extend to the outside of the generator housing 6 respectively, and the two ends of the inner shaft 3 extending to the outside of the generator housing 6 are respectively connected to the workbench 1 through the first seat bearing 8 and the second seat bearing 5; the outer side of the inner shaft 3 at one end of the second seat bearing 5 is also provided with a slip ring 2 and a brush 4 connected to the coil winding 16; the first driven bevel gear 9 and the second driven bevel gear 7 are symmetrically arranged on both sides of the first seat bearing 8, and the first driven bevel gear 9 is connected to the inner shaft 3 by a key, and the second driven bevel gear 7 is connected to the end cover of the generator housing 6; the driving bevel gear 10 is located between the first driven bevel gear 9 and the second driven bevel gear 7, and the driving bevel gear 10 is meshed with the first driven bevel gear 9 and the second driven bevel gear 7 at the same time, and the transmission shaft 11 of the driving bevel gear 10 is positioned on the workbench 1 through the third seat bearing 12, and is connected to the driving device through the transmission 13, and the driving device is a hydraulic impeller or a wind impeller or a fuel engine. In addition, in this embodiment, the first seat bearing 8, the second seat bearing 5 and the third seat bearing 12 are respectively connected to the workbench 1 through insulating rubber pads, which effectively improves the safety of the present invention.

[0019] The working principle of the forward and reverse double-speed dual-rotor permanent magnet generator of the present invention is as follows:

[0020] The driving device drives the driving bevel gear 10 to rotate through the transmission 13 and the transmission shaft 11 in turn, and the first driven bevel gear 9 and the second driven bevel gear 7 meshing with the driving bevel gear 10 also rotate synchronously and in the opposite direction, that is, the generator inner rotor connected to the first driven bevel gear 9 and the generator housing 6 connected to the second driven bevel gear 7 both rotate, and the rotation directions of the two are opposite, and the coil winding 16 of the generator inner rotor cuts the magnetic flux lines of the permanent magnet steel 15 on the inner side of the generator housing 6 to generate electrical energy, and the generated electrical energy is output through the slip ring 2 and the brush 4.

[0021] Compared with the traditional generator, the generator of the present invention has no stator, and its inner rotor and the generator casing 6 rotate at the same speed at the same time, and the rotation directions of the inner rotor and the generator casing 6 are opposite. By superimposing the inner rotor and the generator casing 6 at the same speed and in opposite directions, the input speed of the generator is the same, and the speed is superimposed to twice, so that the power of the generator is higher and the power generation efficiency is higher.

[0022] The generator of the present invention has been tested and found that, at the same input speed, the forward and reverse double-speed dual-rotor permanent magnet generator of the present invention has a power generation efficiency twice as high as that of a conventional inner rotor (or outer rotor) single rotor generator, and thus has a wider application field, requiring a lower input speed, higher efficiency, and more energy saving.

[0023] The above embodiments are only preferred embodiments of the present invention. The structure of the present invention is not limited to the forms listed in the above embodiments. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A forward and reverse double-speed dual-rotor permanent magnet generator, comprising a workbench (1), a generator housing (6) and a generator inner rotor positioned in the generator housing (6), wherein the inner side wall of the generator housing (6) is connected to a permanent magnet steel (15), the generator inner rotor comprises an inner shaft (3) and a coil winding (16), the coil winding (16) is connected to the outer side of the middle part of the inner shaft (3), the inner shaft (3) is rotatably connected to two end covers of the generator housing (6) through bearings (14), and the two ends of the inner shaft (3) extend to the outer side of the generator housing (6), respectively, and the two ends of the inner shaft (3) extending to the outer side of the generator housing (6) are connected to the workbench (1) through a first seat bearing (8) and a second seat bearing (5), respectively, and the outer side of the inner shaft (3) at one end of the second seat bearing (5) is also provided with a slip ring (2) and a brush (4) connected to the coil winding (16); characterized in that: The invention also comprises a first driven bevel gear (9), a second driven bevel gear (7) and a driving bevel gear (10), wherein the first driven bevel gear (9) and the second driven bevel gear (7) are symmetrically arranged on both sides of a first seat bearing (8), and the first driven bevel gear (9) is connected to the inner shaft (3) by a key, and the second driven bevel gear (7) is connected to the end cover of the generator housing (6); the driving bevel gear (10) is located between the first driven bevel gear (9) and the second driven bevel gear (7), and the driving bevel gear (10) is meshed with the first driven bevel gear (9) and the second driven bevel gear (7) at the same time, and the transmission shaft (11) of the driving bevel gear (10) is positioned on the workbench (1) through a third seat bearing (12), and is connected to the driving device through a transmission (13).

2. A forward and reverse double-speed dual-rotor permanent magnet generator according to claim 1, characterized in that: The first seat bearing (8), the second seat bearing (5) and the third seat bearing (12) are respectively connected to the workbench (1) via insulating rubber pads.

3. The forward and reverse double-speed dual-rotor permanent magnet generator according to claim 1, characterized in that: The first driven bevel gear (9) and the second driven bevel gear (7) have the same parameters.

4. The forward and reverse double-speed dual-rotor permanent magnet generator according to claim 1, characterized in that: The driving device is a hydraulic impeller, a wind impeller or a fuel engine.

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