CN213027768U - Novel prevent magnetic coupling that axle head leaked - Google Patents
Novel prevent magnetic coupling that axle head leaked Download PDFInfo
- Publication number
- CN213027768U CN213027768U CN202022025809.3U CN202022025809U CN213027768U CN 213027768 U CN213027768 U CN 213027768U CN 202022025809 U CN202022025809 U CN 202022025809U CN 213027768 U CN213027768 U CN 213027768U
- Authority
- CN
- China
- Prior art keywords
- rotor
- magnetic coupling
- magnet pieces
- novel
- shaft end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a novel prevent magnetic coupling that axle head leaked relates to the hub connection device field, include: the driving part, the outer rotor, the spacer bush, the inner rotor and the driven shaft; the driving part is used for driving the outer rotor to rotate, the spacer sleeve is arranged between the outer rotor and the inner rotor, the outer rotor drives the inner rotor to rotate through magnetic force, and therefore the driven shaft is driven to rotate through the inner rotor; the inner ring of the outer rotor is provided with outer magnets, the outer magnets comprise a plurality of outer magnet pieces which are uniformly arranged around the outer rotor at intervals, the driving part comprises a motor and a driving shaft driven by the motor, and the driving shaft is in transmission connection with the outer rotor; the utility model discloses realize not just can carry out the transmission of moment through direct contact between driving shaft and the driven shaft to set up the spacer sleeve between the outer magnet of driving shaft and the interior magnet on the driven shaft, thereby realize the zero leakage of driven shaft.
Description
Technical Field
The utility model belongs to the technical field of the hub connection technique and specifically relates to a novel prevent magnetic coupling that axle head leaked.
Background
The magnetic transmission coupling is composed of inner and outer 2 magnets, the middle of which is separated by a cage from the 2 magnets, the inner magnet is connected with the driven part, and the outer magnet is connected with the power part. The magnetic transmission coupling has the functions of buffering and absorbing vibration of the elastic coupling, and is mainly characterized in that the magnetic transmission coupling breaks through the structural form of the traditional coupling, adopts a brand new magnetic coupling principle, realizes the transmission of force and torque between a driving shaft and a driven shaft without direct contact, can change dynamic sealing into static sealing and realizes zero leakage. Therefore, the magnetic coupling is widely applied to occasions with special requirements on leakage, the installation precision of the magnet in the existing coupling is not high, the working performance of the coupling is affected, the production cost is high, and the installation difficulty is high.
For example, the chinese utility model patent CN203942434U discloses a magnetic coupling suitable for use in water or seawater, which comprises a magnetic coupling body, wherein the surface of an isolation sleeve of the magnetic coupling body is provided with a non-ferromagnetic seamless waterproof sleeve, the seamless waterproof sleeve is engaged with the convex edges at the two ends of a sheath of an outer magnet sheet 9, the convex edges at the two ends of the sheath are respectively provided with an annular groove embedded with an O-shaped sealing ring, and the O-shaped sealing ring in the annular groove is tightly engaged with the seamless waterproof sleeve; the utility model discloses a magnetic coupling has the problem that production technology is complicated.
SUMMERY OF THE UTILITY MODEL
First, technical problem to be solved
The utility model discloses an above-mentioned defect to prior art exists, the special magnetic coupling who provides a novel prevent shaft end leakage solves current magnetic coupling manufacturing cost higher, and the great problem of the installation degree of difficulty has still solved current magnetic coupling installation accuracy not high, influences the problem of the working property of shaft coupling.
Second, technical scheme
In order to solve the technical problem, the utility model provides a novel prevent magnetic coupling that axle head leaked, include: the driving part, the outer rotor, the spacer bush, the inner rotor and the driven shaft;
the driving part is used for driving the outer rotor to rotate, the spacer sleeve is arranged between the outer rotor and the inner rotor, the outer rotor drives the inner rotor to rotate through magnetic force, and therefore the driven shaft is driven to rotate through the inner rotor;
the inner ring of the outer rotor is provided with outer magnets, and the outer magnets comprise a plurality of outer magnet pieces which are uniformly arranged around the outer rotor at intervals.
The driving part comprises a motor and a driving shaft driven by the motor, and the driving shaft is in transmission connection with the outer rotor.
The inner rotor outer lane is equipped with interior magnet, and interior magnet includes a plurality of interior magnet pieces that encircle even setting, interior magnet piece and outer magnet piece one-to-one.
A clamping groove is formed between adjacent outer magnet pieces, clamping blocks are arranged in the clamping groove, and fixing spaces of the outer magnet pieces are formed between the adjacent clamping blocks.
The clamping groove is an inverted trapezoidal clamping groove, and the clamping blocks are corresponding wedge-shaped clamping blocks.
The clamping groove is a stepped clamping groove, and the clamping blocks are corresponding stepped clamping blocks.
The outer wall surfaces of the inner magnet pieces and the inner wall surfaces of the outer magnet pieces in the corresponding group are arc-shaped surfaces.
The outer wall surfaces of the inner magnet pieces surround to form a cylinder, the inner wall surfaces of the outer magnet pieces surround to form another cylinder, and the two cylinders are coaxial.
The width of the corresponding inner magnet pieces is equal to that of the outer magnet pieces.
The inner magnet piece and the outer magnet piece are fixedly installed in a bonding mode.
Third, beneficial effect
Compared with the prior art, the novel magnetic coupling for preventing shaft end leakage of the utility model can realize torque transmission between the driving shaft and the driven shaft without direct contact through the magnetic action, and a spacer sleeve is arranged between an outer magnet of the driving shaft and an inner magnet on the driven shaft, thereby realizing zero leakage of the driven shaft;
furthermore, the corresponding design of the inner magnet pieces and the outer magnet pieces in the corresponding group enables the transmission efficiency of the whole magnetic coupling to be higher and the loss to be smaller.
Drawings
Fig. 1 is a perspective view of a novel magnetic coupling for preventing shaft end leakage according to the present invention;
fig. 2 is a cross-sectional view 1 of the novel magnetic coupling for preventing shaft end leakage according to the present invention;
fig. 3 is a cross-sectional view 2 of the novel magnetic coupling for preventing shaft end leakage according to the present invention;
fig. 4 is a perspective view of the outer rotor of the present invention;
fig. 5 is an output torque diagram of the magnetic coupling of the present invention;
in the figure: 1 is a motor; 2 is a driving shaft; 3 is an outer rotor; 4 is a spacer bush; 5 is an inner rotor; 6 is a driven shaft; 8 is an inner magnet piece; 9 is an outer magnet sheet; 10 is a fixture block; and 11 is a card slot.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Example 1:
the utility model discloses a novel prevent magnetic coupling that axle head leaked, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, include: the driving part, the outer rotor 3, the spacer 4, the inner rotor 5 and the driven shaft 6; particularly, the drive division includes motor 1 and the driving shaft 2 that drives through motor 1, and driving shaft 2 is connected with 3 transmissions of outer rotor, and the magnetic coupling that prevents the axle head leakage of this embodiment can be applied to: the dangerous explosion moment rotates, hydraulically conveys; high risk contaminated liquid transport; liquid and powder transportation in the food and medicine manufacturing process; hydraulic and liquid transportation in high-risk areas of ships, petrochemical industries and chemical industries; and vacuum, refrigeration system axial seal solutions;
as shown in fig. 3, the driving part is used for driving the outer rotor 3 to rotate, the spacer 4 is arranged between the outer rotor 3 and the inner rotor 5, the outer rotor 3 is used for driving the inner rotor 5 to rotate, and thus the driven shaft 6 is driven to rotate through the inner rotor 5; specifically, an outer magnet is arranged on the inner ring of the outer rotor 3, and comprises a plurality of outer magnet pieces 9 which are uniformly arranged around the outer magnet at intervals; the outer ring of the inner rotor 5 is provided with inner magnets, the inner magnets comprise a plurality of inner magnet pieces 8 which are uniformly arranged in a surrounding manner, and the inner magnet pieces 8 correspond to the outer magnet pieces 9 one by one; through the magnetic force action, namely the magnetic coupling principle, the moment can be transmitted between the driving shaft 2 and the driven shaft 6 without direct contact, so that zero leakage is realized; the problem of poor safety and reliability of various rotary seals is effectively solved, and the static seal replaces the rotary dynamic seal, so that the reliability is high; and the torque transmission is stable without mechanical contact, the mechanical loss is small, the efficiency is high, the noise is low, and the over-torque protection capability is strong.
Specifically, the magnetic coupling of this embodiment is a cylindrical permanent magnet coupling, and the working mechanism of the cylindrical permanent magnet coupling is as follows: the inner magnet pieces 8 and the outer magnet pieces 9 are composed of permanent magnets magnetized in radial directions and opposite in magnetizing directions, and the permanent magnets are alternately arranged in different polarities along the circumferential direction and fixed on a yoke which can be made of low-carbon steel to form a magnetic circuit breaking connection body. The spacer bush is made of low-conductivity material, generally Australian stainless steel, or carbon fiber, or non-magnetic ceramic material. In the static state, the N pole (S pole) of the outer magnet piece 9 and the N pole (S pole) of the inner magnet piece 8 repel each other and form a straight line, and the torque applied to the inner magnet piece 8 is zero. When the outer magnet pieces 9 rotate with the drive shaft, the inner magnet pieces 8 are initially still in a stationary state due to the friction and the resistance of the driven member. At this time, the outer magnet piece 9 starts to shift a certain angle relative to the inner magnet piece 8, and due to the angle, the S pole (N pole) of the outer magnet piece 9 has a pulling effect on the N pole (S pole) of the inner magnet piece 8, and simultaneously, the N pole (S pole) of the outer magnet piece 9 has a pushing effect on the previous N pole (S pole) of the inner magnet piece 8, so that the inner magnet piece 8 tends to rotate along with the outer magnet piece 9.
When the S pole (N pole) of the outer magnet piece 9 is just positioned between the S pole and the N pole of the inner magnet piece 8, the magnetic torque received by the inner magnet piece 8 is maximum, in the rotating process, the inner magnet piece 9 and the outer magnet piece 9 are isolated by the spacer sleeve 4, and the magnetic force line passes through the spacer sleeve 4 to transmit the power and the movement of the outer magnet piece 9 to the inner magnet piece 8, so that the non-contact sealed transmission is realized.
As shown in fig. 4, in this embodiment, a clamping groove 11 is disposed between adjacent outer magnet pieces 9, a clamping block 10 is disposed in the clamping groove 11, and a fixing space for the outer magnet pieces 9 is formed between the adjacent clamping blocks 10; specifically, the clamping groove 11 is an inverted trapezoidal clamping groove, and the clamping blocks 10 are corresponding wedge-shaped clamping blocks, that is, the clamping blocks 10 can be directly clamped and fixed in the clamping groove 11, so that a groove for accommodating and fixing the outer magnet piece 9 is formed between the adjacent clamping blocks 10, compared with a mode that the groove for fixing the outer magnet piece 9 is directly machined through machining in the prior art, the clamping groove 11 of the embodiment is formed through one-step machining by a broaching machine, so that the production efficiency is greatly improved, the production cost is reduced, and meanwhile, the installation accuracy of the outer magnet piece 9 is ensured; in addition, in the embodiment, the inner magnet pieces 8 and the outer magnet pieces 9 are designed to be arc-shaped pieces, the outer rotor 3 and the inner rotor 5 can be better attached, the outer wall surfaces of all the inner magnet pieces 8 surround the cylindrical surface of the side part which can form a cylinder, the inner wall surfaces of all the outer magnet pieces 9 surround the cylindrical surface of the side part which forms another cylinder, meanwhile, the two cylindrical rotating centers are coaxially arranged, the distribution directions of the magnetic lines of force of the two cylindrical rotating centers are directly opposite, and the magnetic action effect which can be generated is stronger.
And, the fixture block 10 adopts the aluminium block in this embodiment, as shown in fig. 5, through adopting the aluminium block to fill in the permanent magnet gap, has reduced the saturation in magnetic field, can also reduce the iron core loss, particularly, the dotted line is prior art scheme's time torque relation picture in fig. 5, and this is scheme 1, and the solid line does the utility model discloses a scheme time torque relation picture after the aluminium block is filled, this is scheme 2, and it is the same to set for two schemes minimum air gap length, and permanent magnet thickness is the same, can see out through carrying out the analysis to magnetic coupling output torque characteristic, the utility model discloses a scheme maximum output torque has increased 3Nm compared in prior art scheme, and its magnetic force effect that can produce is stronger to it can be simpler from the processing angle consideration, and the cost is lower.
In this embodiment, a corresponding set of inner magnet pieces 8 is arranged substantially parallel to the outer magnet pieces 9; and the width of a corresponding group of inner magnet pieces 8 is equal to that of the outer magnet pieces 9, as shown in fig. 3, the width of the inner magnet pieces and the width of the outer magnet pieces are both L, and the design is adopted, so that the transmission efficiency of the whole magnetic coupling is higher, and the loss is smaller.
In this embodiment, the inner magnet piece 8 and the outer magnet piece 9 are fixedly mounted by gluing.
Example 2:
compared with embodiment 1, in this embodiment, the latching groove 11 is a stepped latching groove, and the latching block 10 is a corresponding stepped latching block, which can achieve the same fixing effect.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a novel prevent magnetic coupling of axle head leakage which characterized in that, novel prevent magnetic coupling of axle head leakage includes: the device comprises a driving part, an outer rotor (3), a spacer bush (4), an inner rotor (5) and a driven shaft (6);
the driving part is used for driving the outer rotor (3) to rotate, the spacer sleeve (4) is arranged between the outer rotor (3) and the inner rotor (5), the outer rotor (3) drives the inner rotor (5) to rotate through magnetic force, and therefore the driven shaft (6) is driven to rotate through the inner rotor (5);
an outer magnet is arranged on the inner ring of the outer rotor (3), and the outer magnet comprises a plurality of outer magnet pieces (9) which are arranged around the outer rotor at uniform intervals.
2. The novel magnetic coupling for preventing shaft end leakage according to claim 1, wherein the driving part comprises a motor (1) and a driving shaft (2) driven by the motor (1), and the driving shaft (2) is in transmission connection with the outer rotor (3).
3. The novel magnetic coupling for preventing shaft end leakage according to claim 1 is characterized in that an inner magnet is arranged on the outer ring of the inner rotor (5), the inner magnet comprises a plurality of inner magnet pieces (8) uniformly arranged around the inner rotor, and the inner magnet pieces (8) correspond to the outer magnet pieces (9) one to one.
4. The novel magnetic coupling capable of preventing shaft end leakage according to claim 1, wherein a clamping groove (11) is formed between adjacent outer magnet pieces (9), clamping blocks (10) are arranged in the clamping groove (11), and a fixing space for the outer magnet pieces (9) is formed between the adjacent clamping blocks (10).
5. The novel magnetic coupling for preventing shaft end leakage according to claim 4, wherein the locking groove (11) is an inverted trapezoidal locking groove, and the locking blocks (10) are corresponding wedge-shaped locking blocks.
6. The novel magnetic coupling for preventing shaft end leakage according to claim 4, wherein the locking groove (11) is a stepped locking groove, and the locking block (10) is a corresponding stepped locking block.
7. A novel shaft end leakage prevention magnetic coupling as claimed in claim 3, characterized in that the outer wall surfaces of the corresponding inner magnet pieces (8) and the inner wall surfaces of the outer magnet pieces (9) are arc-shaped surfaces.
8. A novel shaft end leakage prevention magnetic coupling as claimed in claim 7, characterized in that the outer wall surfaces of the inner magnet pieces (8) are formed into a cylindrical shape, the inner wall surfaces of the outer magnet pieces (9) are formed into another cylindrical shape, and the two cylindrical shapes are coaxial.
9. A novel shaft end leakage prevention magnetic coupling as claimed in claim 3, characterized in that the width of the corresponding inner magnet pieces (8) and outer magnet pieces (9) is equal.
10. A novel shaft end leakage prevention magnetic coupling as claimed in claim 3, characterized in that the inner magnet piece (8) and the outer magnet piece (9) are fixedly mounted by means of bonding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022025809.3U CN213027768U (en) | 2020-09-16 | 2020-09-16 | Novel prevent magnetic coupling that axle head leaked |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022025809.3U CN213027768U (en) | 2020-09-16 | 2020-09-16 | Novel prevent magnetic coupling that axle head leaked |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213027768U true CN213027768U (en) | 2021-04-20 |
Family
ID=75476801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022025809.3U Active CN213027768U (en) | 2020-09-16 | 2020-09-16 | Novel prevent magnetic coupling that axle head leaked |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213027768U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115367502A (en) * | 2022-08-09 | 2022-11-22 | 广东众大智能科技有限公司 | Totally enclosed zero-leakage conveying spiral structure |
-
2020
- 2020-09-16 CN CN202022025809.3U patent/CN213027768U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115367502A (en) * | 2022-08-09 | 2022-11-22 | 广东众大智能科技有限公司 | Totally enclosed zero-leakage conveying spiral structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101645644B (en) | Permanent magnetic compound type asynchronous coupling | |
| CN201374639Y (en) | Non-contact axial magnetization multi-ring magnetic coupler | |
| CN110219888B (en) | Permanent magnet suspension bearing with magnet protection structure and marine transportation equipment | |
| CN213027768U (en) | Novel prevent magnetic coupling that axle head leaked | |
| CN201027951Y (en) | Magnetic coupling device | |
| EP4064534A1 (en) | Magnetic shaft coupling and use and adjustment method thereof | |
| WO2015115694A1 (en) | Coaxial magnetic gear | |
| CN103490587A (en) | Sleeve barrel magnet collecting type magnetic circuit structure for permanent magnet synchronous transmission device | |
| CN203056818U (en) | Disc type synchronous non-contact transmission permanent magnet shaft coupling | |
| CN108418393B (en) | Magnetic gear with improved magnetic ring structure | |
| CN108880186A (en) | A kind of coaxial-type permanent magnetic transmission device | |
| CN110149039B (en) | Mixed magnetic rheological liquid-permanent magnet coupling | |
| CN103161749A (en) | High-power plastic lining magnetic pump | |
| CN207892846U (en) | A kind of corrosion resistant magnetic force circulating pump | |
| CN203457029U (en) | Sleeve type magnet-gathering type magnetic circuit structure for permanent magnetic synchronization transmission device | |
| CN100406782C (en) | Magnetic gear wheel with collar groove permanent magnetic amplitude structure and magnetic gear wheel set | |
| CN207218508U (en) | A kind of permanent magnetism watertight torquematic transmission | |
| CN105515335A (en) | Modular magnetic coupling for underwater propeller | |
| CN208589905U (en) | A kind of coaxial-type permanent magnetic transmission device | |
| CN211655974U (en) | Large-torque large-depth underwater magnetic coupling transmission device and underwater power equipment | |
| CN201063490Y (en) | Magnetic driving vessel | |
| CN104682660B (en) | A kind of axial magnetic field modulation system magnetic gear | |
| CN108365733B (en) | Magnetic gear structure capable of improving production efficiency | |
| CN210693744U (en) | Permanent magnet eddy current transmission reaction kettle | |
| CN2350575Y (en) | Magnetic transmission for pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221202 Address after: 315800 Building 1, No. 3, Chunxiao Yangshashan Road, Chunxiao Street, Beilun District, Ningbo City, Zhejiang Province Patentee after: Aoguan Machinery (Ningbo) Co.,Ltd. Address before: 315800 No.1, building 2, No.36 Tianlongshan Road, Daqi, Beilun District, Ningbo City, Zhejiang Province Patentee before: NINGBO DEO MACHINERY Co.,Ltd. |