CN207819738U - Composite torque limiting permanent-magnet eddy current coupling device - Google Patents
Composite torque limiting permanent-magnet eddy current coupling device Download PDFInfo
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- CN207819738U CN207819738U CN201820118758.9U CN201820118758U CN207819738U CN 207819738 U CN207819738 U CN 207819738U CN 201820118758 U CN201820118758 U CN 201820118758U CN 207819738 U CN207819738 U CN 207819738U
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- disk
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- electric conductor
- inward turning
- magnet
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Abstract
This application discloses a kind of composite torque limiting permanent-magnet eddy current coupling devices, including outer rotary barrel and inward turning rotary case, the inward turning rotary case is located inside outer rotary barrel, and the axis of the axis of inward turning rotary case and outer rotary barrel is point-blank circumscribed with output shaft on inward turning rotary case；Axisymmetricly structure rotary barrel, the inward turning rotary case are that symmetrical structure rotates disk body to the outer rotary barrel；The disk both sides of inward turning rotary case are both provided with desk permanent-magnet body, on outer rotary barrel inner wall be provided with disc type electric conductor at desk permanent-magnet body opposite face；Be provided with cartridge type permanent magnet on the disk round edge of inward turning rotary case, on outer rotary barrel inner wall be provided with cartridge type electric conductor at cartridge type permanent magnet opposite face.
Description
Technical field
The utility model is related to permanent-magnet eddy current flexible transmission system more particularly to a kind of composite torque limiting permanent-magnet eddy current are even
Clutch.
Background technology
Torque-limiting hydraulic coupler solves the problems, such as bringing onto load soft start and overload protection, is current large scale equipment, heavy machine
The main selection of tool.But the internal structure of fluid coupling is more complicated, and on-site maintenance is more difficult；It is easily sent out when decentraction is installed
Raw abnormal sound, can make the vibration of motor and retarder big, while causing the damage of bearing, sealing ring；Transmission efficiency is low, no
Stablize, influences the ability to work of equipment；Intermittent oiling, scene is needed to be difficult to accurately control filling amount when fluid coupling oil leak.
Patent CN 103326537A limited-moment permanent magnetic couplings, it is proposed that the plate-like cylindrical structure of rotor can reach overload
Defencive function.But it has the following disadvantages：It is single-deck unsymmetric structure, and there are larger axial forces, and the axial force is by motor
It is born with output bearing, increases their load.
Utility model content
The utility model is in view of the above-mentioned problems, propose a kind of composite torque limiting permanent-magnet eddy current coupling device.
The technical solution that the utility model is taken is as follows：
A kind of composite torque limiting permanent-magnet eddy current coupling device, including outer rotary barrel and inward turning rotary case, the interior rotation
Disk body is located inside outer rotary barrel, the axis of the axis of inward turning rotary case and outer rotary barrel point-blank, interior rotation
Output shaft is circumscribed on disk body；Axisymmetricly structure rotary barrel, the inward turning rotary case are symmetrical junction to the outer rotary barrel
Structure rotates disk body；The disk both sides of inward turning rotary case are both provided with desk permanent-magnet body, on outer rotary barrel inner wall with desk permanent-magnet
Disc type electric conductor is provided at body opposite face；Cartridge type permanent magnet is provided on the disk round edge of inward turning rotary case, in outer rotary barrel
On wall cartridge type electric conductor is provided with at cartridge type permanent magnet opposite face.
In the present solution, outer rotary barrel is connected by connecting propeller boss with motor, motor rotation drives outer rotary barrel rotation
Turn, output shaft connects with external device.When electric motor starting, electric conductor on outer rotary barrel (including disc type electric conductor and cartridge type
Electric conductor) cutting inward turning rotary case on permanent magnet (including desk permanent-magnet body and cartridge type permanent magnet) the magnetic line of force generate induction whirlpool
Electric current, the induced field generate torque with permanent magnetism field interactions, to pull inward turning rotary case that outer rotary barrel is followed to move,
To which the contactless torque realized between motor and load is transmitted.
Since outer rotary barrel and inward turning rotary case are symmetrical structure in this programme, axial force is relatively low, output shaft with
The load of motor is low, and the service life is longer；(cartridge type is forever with axial magnetic field for longitudinal magnetic field (desk permanent-magnet body is formed) in this case simultaneously
Magnet is formed) it is combined with each other, driving torque is improved, connection and the limit square of high-power transmission axis are suitable for.
Optionally, the outer rotary barrel includes two consistent outer cylinders of specification, and two outer cylinders are connected by connecting plate
It connects and is fixed together.
Optionally, the inward turning rotary case includes disk and torque plate, and there are two the disks, and two disks are set to torsion
Square disk both ends, torque plate and disk are linked together by several axis pins, spring are provided on axis pin, and the spring is set to
Between torque plate and disk.
When overload occurs for equipment or when stall, inward turning rotary case rotating speed is dropped rapidly to zero, and the outward turning being connect with motor
Drum body rotating speed does not change substantially, due to the repulsive force compressed spring that slip generates between disk and outer cylinder, rapidly two
Air gap between person is pulled to maximum.Empty load of motor runs or shuts down, to protect motor with inward turning rotary case from destroying.
Optionally, the output shaft is mounted on by way of key connection on output shaft, and axis hole is provided on the disk.
Optionally, the outer cylinder is steel outer cylinder, and the disc type electric conductor is copper disc type electric conductor or aluminum disk
Formula electric conductor, the cartridge type electric conductor are copper cartridge type electric conductor or aluminum cartridge type electric conductor.
Optionally, the disk is steel disk.
Optionally, it is provided with ventilation hole on the first rotary components, heat dissipation is provided between cartridge type electric conductor and outer rotary barrel
Piece.
The there is provided coupling device of this programme be permanent-magnet eddy current coupling device, the vortex heat of generation is also big, thus be arranged ventilation hole and
Cooling fin radiates.
The utility model has the beneficial effects that：It is axial since outer rotary barrel and inward turning rotary case are symmetrical structure
Power is relatively low, and output shaft is low with the load of motor, and the service life is longer；Longitudinal magnetic field and axial magnetic field mutually group in this case simultaneously
It closes, improves driving torque, be suitable for connection and the limit square of high-power transmission axis；Coupling can be released when overloading rapidly, from
And protect motor and driving member.
Description of the drawings：
Fig. 1 is composite torque limiting permanent-magnet eddy current coupling device structure schematic diagram.
Each reference numeral is in figure：1, propeller boss is connected, 2, outer cylinder, 3, disc type electric conductor, 4, cartridge type electric conductor, 5, connection
Plate, 6, cartridge type permanent magnet, 7, disc type lead permanent magnetism, 8, disk, 9, output shaft, 10, torque plate, 11, axis pin, 12, spring.
Specific implementation mode：
With reference to each attached drawing, the utility model is described in detail.
As shown in Fig. 1, a kind of composite torque limiting permanent-magnet eddy current coupling device, including outer rotary barrel and interior rotating disk
Body, inward turning rotary case are located inside outer rotary barrel, and the axis of the axis of inward turning rotary case and outer rotary barrel is in straight line
On, output shaft 9 is circumscribed on inward turning rotary case；Axisymmetricly structure rotary barrel, inward turning rotary case are symmetrical to outer rotary barrel
Structure rotates disk body；The disk both sides of inward turning rotary case are both provided with desk permanent-magnet body 7, on outer rotary barrel inner wall forever with disc type
It is provided with disc type electric conductor 3 at 7 opposite face of magnet；Cartridge type permanent magnet 6, outer rotating cylinder are provided on the disk round edge of inward turning rotary case
On internal wall be provided with cartridge type electric conductor 4 at 6 opposite face of cartridge type permanent magnet.
In the present solution, outer rotary barrel is connected by connecting propeller boss 1 with motor, motor rotation drives outer rotary barrel rotation
Turn, output shaft 9 connects with external device.When electric motor starting, electric conductor on outer rotary barrel (including disc type electric conductor 3 and cylinder
Formula electric conductor 4) cutting inward turning rotary case on permanent magnet (including desk permanent-magnet body 7 and cartridge type permanent magnet 6) the magnetic line of force generate
Inducing eddy-current, which generates torque with permanent magnetism field interactions, to pull inward turning rotary case to follow outer rotating cylinder
Body moves, to which the contactless torque realized between motor and load is transmitted.
Since outer rotary barrel and inward turning rotary case are symmetrical structure in this programme, axial force is relatively low, output shaft 9 with
The load of motor is low, and the service life is longer；Longitudinal magnetic field (formation of desk permanent-magnet body 7) and axial magnetic field (cartridge type in this case simultaneously
The formation of permanent magnet 6) it is combined with each other, driving torque is improved, connection and the limit square of high-power transmission axis are suitable for.
As shown in Fig. 1, outer rotary barrel includes two consistent outer cylinders of specification 2, and two outer cylinders 2 pass through connecting plate
5 are connected and fixed.
As shown in Fig. 1, inward turning rotary case includes disk 8 and torque plate 10, and there are two disks 8, and two disks 8 are set to
10 both ends of torque plate, torque plate 10 and disk 8 are linked together by several axis pins 11, and spring 12 is provided on axis pin 11, and
Spring 12 is set between torque plate 10 and disk 8.
When overload occurs for equipment or when stall, inward turning rotary case rotating speed is dropped rapidly to zero, and the outward turning being connect with motor
Drum body rotating speed does not change substantially, due to the repulsive force compressed spring 12 that slip generates between disk 8 and outer cylinder 2, rapidly
Air gap between the two is pulled to maximum.Empty load of motor runs or shuts down, to protect motor with inward turning rotary case from destroying.
As shown in Fig. 1, output shaft 9 is mounted on by way of key connection on output shaft 9, and axis hole is provided on disk 8.
As shown in Fig. 1, outer cylinder 2 is steel outer cylinder 2, and disc type electric conductor 3 is copper disc type electric conductor 3 or aluminum disk
Formula electric conductor 3, cartridge type electric conductor 4 are copper cartridge type electric conductor 4 or aluminum cartridge type electric conductor 4.
As shown in Fig. 1, disk 8 is steel disk 8.
As shown in Fig. 1, it is provided with ventilation hole on the first rotary components, is arranged between cartridge type electric conductor 4 and outer rotary barrel
There is cooling fin.
The there is provided coupling device of this programme be permanent-magnet eddy current coupling device, the vortex heat of generation is also big, thus be arranged ventilation hole and
Cooling fin radiates.
The above is only the preferred embodiment of the present invention, not thereby limits the patent protection of the utility model
Range, it is every with equivalent structure transformation made by the utility model specification and accompanying drawing content, directly or indirectly it is used in it
His relevant technical field includes similarly within the protection scope of the present utility model.
Claims (7)
1. a kind of composite torque limiting permanent-magnet eddy current coupling device, including outer rotary barrel and inward turning rotary case, the interior rotating disk
Body is located inside outer rotary barrel, the axis of the axis of inward turning rotary case and outer rotary barrel point-blank, interior rotating disk
Output shaft is circumscribed on body；It is characterized in that, the outer rotary barrel axisymmetricly structure rotary barrel, the inward turning rotary case
Disk body is rotated for symmetrical structure；The disk both sides of inward turning rotary case are both provided with desk permanent-magnet body, on outer rotary barrel inner wall with
It is provided with disc type electric conductor at desk permanent-magnet body opposite face；It is provided with cartridge type permanent magnet, outward turning on the disk round edge of inward turning rotary case
On drum body inner wall cartridge type electric conductor is provided with at cartridge type permanent magnet opposite face.
2. composite torque limiting permanent-magnet eddy current coupling device as described in claim 1, which is characterized in that the outer rotary barrel packet
Two consistent outer cylinders of specification are included, two outer cylinders are connected and fixed by connecting plate.
3. composite torque limiting permanent-magnet eddy current coupling device as described in claim 1, which is characterized in that the inward turning rotary case packet
Disk and torque plate are included, there are two the disks, and two disks are set to torque plate both ends, torque plate and disk and pass through several pins
Axis connection together, is provided with spring, and the spring is set between torque plate and disk on axis pin.
4. composite torque limiting permanent-magnet eddy current coupling device as claimed in claim 3, which is characterized in that the output shaft passes through key
The mode of connection is mounted on output shaft, and axis hole is provided on the disk.
5. composite torque limiting permanent-magnet eddy current coupling device as claimed in claim 2, which is characterized in that the outer cylinder is steel
Outer cylinder, the disc type electric conductor are copper disc type electric conductor or aluminum disc type electric conductor, and the cartridge type electric conductor is copper cylinder
Formula electric conductor or aluminum cartridge type electric conductor.
6. composite torque limiting permanent-magnet eddy current coupling device as claimed in claim 3, which is characterized in that the disk is justified for steel
Disk.
7. composite torque limiting permanent-magnet eddy current coupling device as described in claim 1, which is characterized in that opened on the first rotary components
There is ventilation hole, cooling fin is provided between cartridge type electric conductor and outer rotary barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820118758.9U CN207819738U (en) | 2018-01-24 | 2018-01-24 | Composite torque limiting permanent-magnet eddy current coupling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820118758.9U CN207819738U (en) | 2018-01-24 | 2018-01-24 | Composite torque limiting permanent-magnet eddy current coupling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207819738U true CN207819738U (en) | 2018-09-04 |
Family
ID=63324875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820118758.9U Active CN207819738U (en) | 2018-01-24 | 2018-01-24 | Composite torque limiting permanent-magnet eddy current coupling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207819738U (en) |
-
2018
- 2018-01-24 CN CN201820118758.9U patent/CN207819738U/en active Active
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