Magnetic coupling with electromagnetic damping and power generation function

Abstract

The application relates to a magnetic coupling with a power generation function and electromagnetic damping, comprising a power shaft, a driven shaft, a shell, a motor module and a magnetic coupling module. The application combines a generator structure and a magnetic coupling, guarantees the basic transmission and sealing functions of the magnetic coupling, provides electromagnetic damping for the slipping of the power shaft and the driven shaft under high-speed and high-load working conditions, realizes energy recovery, achieves the purposes of energy saving and environmental protection, provides resistance when the winding cuts the magnetic induction lines, alleviates the slipping of the power shaft and the driven shaft of the magnetic coupling during high-speed and high-load operation, reduces the occurrence of coupling transmission failure, and improves the working efficiency of the magnetic coupling.

Description

Technical Field

[0001] This invention belongs to the field of sealing or transmission technology in mechanical engineering, and specifically relates to a magnetic coupler that can generate electricity. Background Technology

[0002] Magnetic couplers, also known as magnetic couplings or permanent magnet transmission devices, achieve transmission between shafts through magnetic force based on easily achievable static seals, thus achieving the effect of transmission on a sealed basis.

[0003] In existing technologies, although power transmission is achieved through magnetic coupling, which solves the requirements of shaft transmission on the basis of sealing, there is a phenomenon of slippage between the power shaft and the driven shaft when the shaft operates at high speed and high load. Slippage makes it difficult for the energy of the power shaft to be completely transferred to the driven shaft, resulting in a partial loss of rotational speed. This part of the rotational speed lost by the power shaft has great value for recycling. Summary of the Invention

[0004] The purpose of this invention is to provide a magnetic coupler with electromagnetic damping and power generation function. It combines a generator structure with a magnetic coupler, ensuring the basic transmission and sealing functions of the magnetic coupler while providing electromagnetic damping to prevent slippage of the drive shaft and driven shaft under high-speed and high-load conditions. This also enables energy recovery, achieving the goal of energy saving and environmental protection. When the winding cuts the magnetic field lines, it provides resistance, which alleviates the slippage of the drive shaft and driven shaft in the magnetic coupler under high-speed and high-load operation, reduces the occurrence of coupling transmission failure, and improves the working efficiency of the magnetic coupler.

[0005] This patent presents finite element simulations of numerous generators and magnetic couplers, analyzes the simulation results, and proposes a reasonable design scheme for a magnetic coupler device with electromagnetic damping and power generation function.

[0006] The technical solution of the present invention is as follows: A magnetic coupler with electromagnetic damping and power generation function includes a power shaft, a housing, an electromagnetic damping module, a magnetic coupling transmission module, and a driven shaft; characterized in that: the electromagnetic damping module includes a winding ring, a winding, a permanent magnet, and an air gap; the electromagnetic damping module is disposed on the power shaft and the driven shaft; the winding ring is disposed on the driven shaft and rotates synchronously with the driven shaft; the winding is embedded in the winding post of the winding ring; the permanent magnet is disposed on the outer circular surface of the power shaft, and the number is not less than two; a gap of 0.05-3mm is left between the outer circular surface of the power shaft with the permanent magnet and the inner circular surface of the winding post;

[0007] The magnetic coupling transmission module is mounted on the drive shaft and the driven shaft. The magnetic coupling transmission module includes a housing, a magnetic sleeve, a sealing ring, an inner permanent magnet, and an outer permanent magnet. The magnetic sleeve is fixed to the housing by bolts. The sealing ring is located in the gap between the magnetic sleeve and the housing. The inner permanent magnet is located on the outer circular surface of the drive shaft, and the outer permanent magnet is located on the inner circular surface of the driven shaft. A gap of 0.05 to 3 mm is left between the outer circular surface of the drive shaft with permanent magnet and the inner circular surface of the magnetic sleeve, and between the inner circular surface of the driven shaft with permanent magnet and the outer circular surface of the magnetic sleeve.

[0008] The magnetic coupler with electromagnetic damping and power generation function is characterized in that: the winding is made of copper wire covered with enamel.

[0009] The magnetic coupler with electromagnetic damping and power generation function is characterized in that: the total number of winding posts on the winding ring is a multiple of 3, and the number of winding posts is not less than 12; adjacent windings are ABCABC phases; the winding coils are connected to the outside through quick-connect connectors installed on the outer shell; and a sealing ring groove is provided on the outer circumference of the stator pole shoe ring.

[0010] The magnetic coupler with electromagnetic damping and power generation function is characterized in that it further includes bearings, the bearings being a left bearing and a right bearing, the left bearing being mounted on the power shaft and the right bearing being mounted on the driven shaft, the left bearing being located on the left side of the electromagnetic damping module; and the right bearing being located on the right side of the magnetic coupling transmission module. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a magnetic coupler with electromagnetic damping and power generation function proposed in this invention. Figure 2 This is a left view of the electromagnetic damping module of the present invention; Figure 3 This is a schematic diagram of the magnetic coupling transmission module of the present invention; Figure 4 This is a left view of the magnetic coupling transmission module of the present invention.

[0012] Explanation of reference numerals in the attached figures

[0013] Figure 1 The diagram shows the structure of a magnetic coupler with electromagnetic damping and power generation function proposed in this invention. The numbers and corresponding names in the diagram are as follows: 1. Power shaft, 2. Housing, 3. Electromagnetic damping module, 3-1. Winding ring, 3-2. Winding, 3-3. Permanent magnet, 3-4. Air gap, 4. Magnetic coupling transmission module, 5. Driven shaft, 6. Bearing, 7. End cap.

[0014] Figure 3The diagram shows the structure of the magnetic coupling transmission module of the present invention. The serial numbers and corresponding names in the diagram are as follows: 4-1 non-magnetic ring, 4-2 magnetic sleeve, 4-3 sealing ring, 4-4, 4-5 power shaft, 4-6, 4-10 connection, 4-7 inner permanent magnet, 4-8, 4-9 driven shaft, 4-11 outer permanent magnet. Detailed Implementation

[0015] The invention will now be further described with reference to the accompanying drawings.

[0016] The technical solution of the present invention is as follows: A magnetic coupler with electromagnetic damping and power generation function includes a power shaft, a housing, an electromagnetic damping module, a magnetic coupling transmission module, and a driven shaft; characterized in that: the electromagnetic damping module includes a winding ring, a winding, a permanent magnet, and an air gap; the electromagnetic damping module is disposed on the power shaft and the driven shaft; the winding ring is disposed on the driven shaft and rotates synchronously with the driven shaft; the winding is embedded in the winding post of the winding ring; the permanent magnet is disposed on the outer circular surface of the power shaft, and the number is not less than two; a gap of 0.05-3mm is left between the outer circular surface of the power shaft with the permanent magnet and the inner circular surface of the winding post;

[0017] The magnetic coupling transmission module is mounted on the drive shaft and the driven shaft. The magnetic coupling transmission module includes a housing, a magnetic sleeve, a sealing ring, an inner permanent magnet, and an outer permanent magnet. The magnetic sleeve is fixed to the housing by bolts. The sealing ring is located in the gap between the magnetic sleeve and the housing. The inner permanent magnet is located on the outer circular surface of the drive shaft, and the outer permanent magnet is located on the inner circular surface of the driven shaft. A gap of 0.05 to 3 mm is left between the outer circular surface of the drive shaft with permanent magnet and the inner circular surface of the magnetic sleeve, and between the inner circular surface of the driven shaft with permanent magnet and the outer circular surface of the magnetic sleeve.

[0018] The magnetic coupler with electromagnetic damping and power generation function is characterized in that: the winding is made of copper wire covered with enamel.

[0019] The magnetic coupler with electromagnetic damping and power generation function is characterized in that: the total number of winding posts on the winding ring is a multiple of 3, and the number of winding posts is not less than 12; adjacent windings are ABCABC phases; the winding coils are connected to the outside through quick-connect connectors installed on the outer shell; and a sealing ring groove is provided on the outer circumference of the stator pole shoe ring.

[0020] The magnetic coupler with electromagnetic damping and power generation function is characterized in that it further includes bearings, the bearings being a left bearing and a right bearing, the left bearing being mounted on the power shaft and the right bearing being mounted on the driven shaft, the left bearing being located on the left side of the electromagnetic damping module; and the right bearing being located on the right side of the magnetic coupling transmission module.

Claims

1. A magnetic coupler with electromagnetic damping and power generation function, comprising a drive shaft (1), a housing (2), an electromagnetic damping module (3), a magnetic coupling transmission module (4), and a driven shaft (5); characterized in that: The electromagnetic damping module (3) includes a winding ring (3-1), a winding (3-2), a permanent magnet (3-3), and an air gap (3-4). The electromagnetic damping module is located on the power shaft (1) and the driven shaft (5). The winding ring (3-1) is located on the driven shaft (5) and rotates synchronously with the driven shaft. The winding (3-2) is embedded in the winding post of the winding ring. The permanent magnet (3-3) is located on the outer circular surface of the power shaft, and the number is not less than 2. There is a gap between the outer circular surface of the power shaft with the permanent magnet and the inner circular surface of the winding post, which is 0.05~3mm. The magnetic coupling transmission module (4) is mounted on the drive shaft (1) and the driven shaft (5). The magnetic coupling transmission module (4) includes a housing (2 / 4-1), a magnetic sleeve (4-2), a sealing ring (4-3), an inner permanent magnet (4-7), and an outer permanent magnet (4-11). The magnetic sleeve (4-2) is fixed to the housing (2 / 4-1) by bolts. The sealing ring (4-3) is located at the gap between the magnetic sleeve and the housing. The inner permanent magnet (4-11) 4-7) The outer permanent magnet (4-11) is located on the outer circular surface of the drive shaft (1), and the inner permanent magnet (4-11) is located on the inner circular surface of the driven shaft (5). The inner permanent magnet and the outer permanent magnet are arranged opposite to each other and have the same magnetization direction. The inner permanent magnet and the outer permanent magnet are arranged adjacent to each other and have opposite magnetization directions. There is a gap between the outer circular surface of the drive shaft with permanent magnet and the inner circular surface of the magnetic sleeve, and between the inner circular surface of the driven shaft with permanent magnet and the outer circular surface of the magnetic sleeve. The gap is 0.05~3mm.

2. A magnetic coupler with electromagnetic damping and power generation function as described in claim 1, characterized in that: The winding (3-2) is a copper wire covered with enamel.

3. A magnetic coupler with electromagnetic damping and power generation function as described in claim 1, characterized in that: The total number of winding posts on the winding ring (3-1) is a multiple of 3, and the number of winding posts is not less than 12. The adjacent windings are ABCABC phases respectively, and the windings are connected to the outside world by installing quick-connect connectors on the outer shell.

4. A magnetic coupler with electromagnetic damping and power generation function as described in claim 1, characterized in that: It also includes a bearing (6), which includes a left bearing and a right bearing. The left bearing is mounted on the power shaft (1), and the right bearing is mounted on the driven shaft (5). The left bearing is located on the left side of the electromagnetic damping module (3); the right bearing is located on the right side of the magnetic coupling transmission module (4).

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