CN109737151A - A kind of magnetic-fluid clutch and working method - Google Patents
A kind of magnetic-fluid clutch and working method Download PDFInfo
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- CN109737151A CN109737151A CN201910182712.2A CN201910182712A CN109737151A CN 109737151 A CN109737151 A CN 109737151A CN 201910182712 A CN201910182712 A CN 201910182712A CN 109737151 A CN109737151 A CN 109737151A
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- input shaft
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- round tube
- friction
- rubbing device
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Abstract
A kind of magnetic-fluid clutch and working method.Its composition of this product includes: matrix shell, the matrix shell is provided with rubbing device, the matrix shell has closed end, the closed end is provided with circular hole, the rubbing device has friction closed end, the friction closed end is provided with concentric circle holes, output shaft is inserted between the circular hole and the concentric circle holes, fixation is connected by key between the output shaft and the friction closed end, the rubbing device connects ladder input shaft, the ladder inputs axis connection input shaft, the input shaft connection gear, the matrix shell is circumferentially provided with one group of embedding groove, the embedding groove connects coil.The present invention is used for magnetic-fluid clutch.
Description
Technical field:
The present invention relates to a kind of magnetic-fluid clutch and working methods.
Background technique:
A kind of colloidal dispersion system that magnetic fluid is made of base load liquid and granular magnetic retention.Base load liquid disperses to be situated between
Matter is commonly kerosene and machinery oil etc., and the solid magnetic particles as dispersed phase are usually ferromagnetic material, as iron, brill, nickel and
Their magnetic oxide etc..Ferrofluid has colloidal stability and component stability, and has good magnetization property.
When not applying external magnetic field, the viscosity of rheology liquid is smaller (≤1.0Pa s), and the magnetic rheology effect of rheology liquid is better.Magnetic current
Body can magnetize under the synergy in magnetic field or electric field and magnetic field, to present " like phenomenon is aggravated ", be distributed in stream to being located at
Non-magnetic particle in body generates magnetic buoyancy effect.It is known as " apparent density " like the density after exacerbation, it can be additional by changing
Magnetic field strength, magnetic field gradient or electric field strength adjust " apparent density " size.Since " apparent density " is closeer than medium itself
Much higher times is spent, and the namagnetic substance being distributed in a fluid does not magnetize, so that magnetic fluid produces namagnetic substance therein
Raw very big buoyancy.Structure is complicated using magnetic-fluid clutch at present, low-response, complicated for operation and to be capable of providing torque small.
Summary of the invention:
A kind of magnetic-fluid clutch and working method greatly improved the object of the present invention is to provide a kind of apparent density.
Above-mentioned purpose is realized by following technical scheme:
A kind of magnetic-fluid clutch, composition includes: matrix shell, and the matrix shell is provided with rubbing device, described
Matrix shell has closed end, and the closed end is provided with circular hole, and the rubbing device has friction closed end, and described rubs
Wipe closed end and be provided with concentric circle holes, be inserted into output shaft between the circular hole and the concentric circle holes, the output shaft with
Fixation is connected by key between the friction closed end, the rubbing device connects ladder input shaft, and the ladder is defeated
Enter axis connection input shaft, the input shaft connection gear, the matrix shell is circumferentially provided with one group of embedding groove, described
Embedding groove connects coil.
A kind of magnetic-fluid clutch, the rubbing device include outer round tube, and the outer round tube connects inner circle
Pipe, is connected with elastic rubber disk, the interior round tube connecting spring is described between the interior round tube and the outer round tube
Spring connects friction block, and the ladder input shaft is circumferentially provided with one group of groove, and the spring connects top plate, the top
The plate cooperation groove uses, and is connected and fixed between the gear and the output shaft by gear key.
A kind of magnetic-fluid clutch, the friction block are cylindrical body, and the friction block is symmetrically embedded in described
Interior round tube tube wall on.
A kind of working method of magnetic-fluid clutch passes through control when gear band driven input shaft and the rotation of ladder input shaft
Coil in matrix shell processed provides magnetic field, so that the magnetic fluid in rubbing device is in field region Momentary magnetizing, corresponding magnetic current
The interior pressure that friction block in body is subject to increases, and is axially moved, and friction block stretches out interior round tube and input shaft friction；It is rubbing
In the process, the groove in ladder input shaft can be engaged with friction block, so drive rubbing device move together, rubbing device with it is defeated
Axis connection out, passing movement；When control coil magnetic field disappears, magnetic fluid momentary recovery Newtonian fluid state, friction block is in bullet
Be pulled under the action of spring into rubbing device, input shaft and ladder input shaft and the connectionless relationship of output shaft so that movement every
From variation of magnetic fluid volume is offset by elastic rubber disk during this.
The utility model has the advantages that
1. the present invention changes magnetic fluid state by the magnetic field that control coil generates, and then passes through the intracorporal pressure effect of magnetic current
Make friction block and input shaft friction and engages, it is final to drive output shaft rotation.
It is easy to operate and be capable of providing high torque 2. structure of the invention is simple, response quickly.
3. the present invention changes magnetic fluid state by the magnetic field that control coil generates, and then passes through pressure work in magnetic fluid
It is final to drive output shaft rotation with making friction block and input shaft friction and engage.
Detailed description of the invention:
Attached drawing 1 is the structural schematic diagram of this product.
Attached drawing 2 is the structural schematic diagram of matrix shell in attached drawing 1.
Attached drawing 3 is the left view of attached drawing 2.
Attached drawing 4 is the structural schematic diagram of rubbing device in attached drawing 1.
Attached drawing 5 is the left view of attached drawing 4.
Specific embodiment:
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clearly and completely
Description.
Embodiment 1:
A kind of magnetic-fluid clutch, composition includes: matrix shell 1, and the matrix shell is provided with rubbing device 2, described
Matrix shell there is closed end 3, the closed end is provided with circular hole 4, and the rubbing device has friction closed end 5, institute
The friction closed end stated is provided with concentric circle holes 6, and output shaft 7 is inserted between the circular hole and the concentric circle holes, described
It is connected and fixed between output shaft and the friction closed end by key 8, the rubbing device connects ladder input shaft 9, institute
The ladder input axis connection input shaft 10 stated, the input shaft connection gear 11, the matrix shell are circumferentially provided with one
Group embedding groove 12, the embedding groove connect coil 13.
Embodiment 2:
A kind of magnetic-fluid clutch described in embodiment 1, the rubbing device include outer round tube 14, the outer round tube connection
Interior round tube 15, is connected with elastic rubber disk 16 between the interior round tube and the outer round tube, the interior round tube connects bullet
Spring 17, the spring connect friction block 18, and the ladder input shaft is circumferentially provided with one group of groove 19, and the spring connects
Top plate 20 is connect, the top plate cooperation groove uses, and passes through gear key between the gear and the output shaft
21 are connected and fixed.
Embodiment 3:
A kind of magnetic-fluid clutch as described in example 2, the friction block are cylindrical body, and the friction block is symmetrically embedded in institute
On the tube wall for the interior round tube stated.
Embodiment 4:
A kind of magnetic-fluid clutch described in above-described embodiment, including matrix shell, rubbing device, input shaft and output shaft, rub
Wiping device is constituted by the interior round tube of two different inner diameters is nested with outer round tube, and outer round tube side sealing, the other side is by being spirally connected
The gap cavity of the sealing of elastic rubber disk, formation is full of magnetic fluid；If being symmetrically embedded in dry friction on the inner circle tube wall of rubbing device
Block；Friction block is cylindrical body, and on friction block, one end of spring is fixed on friction block spring pocket, and the other end of spring is fixed
On the tube wall of interior round tube, friction block can slide axially, and ladder input shaft and rubs from the interior round tube that rubbing device is protruded into side
There are groove, output shaft passes through matrix outer casing bottom and is keyed with the other side of rubbing device the corresponding position of cleaning block；Base
Body case is cylindrical body, and cylindrical cavity includes entire rubbing device, and several coils are symmetrically installed on inner wall.
Embodiment 5:
A kind of magnetic-fluid clutch described in above-described embodiment, including matrix shell, rubbing device, input shaft, ladder input shaft
And output shaft, matrix shell are hollow cylinder, rubbing device is located at the middle part of hollow cylinder, on matrix outer casing inner wall symmetrically
Several coils are installed, rubbing device by two different inner diameters interior round tube it is nested with outer round tube form, interior round tube and outer round tube
Between form cavity, one side seal of cavity, the cavity other side is sealed by elastic component, has magnetic fluid, rubbing device in cavity
Interior tube wall on be embedded with several friction blocks, spring pocket is on friction block, and one end of spring is fixed on friction block, spring
The other end is fixed on inner tubal wall, and friction block can slide axially, and input shaft protrudes into the inner circle of rubbing device from rubbing device one end
Guan Zhong, position corresponding with friction block has groove on ladder input shaft, and output shaft passes through matrix shell and is fixed on rubbing device
The other end on.
Embodiment 6:
A kind of working method of magnetic-fluid clutch passes through when gear band driven input shaft and the rotation of ladder input shaft and controls base
Coil in body case provides magnetic field, so that the magnetic fluid in rubbing device is in field region Momentary magnetizing, corresponding magnetic fluid
The interior pressure that is subject to of friction block increase, be axially moved, friction block stretch out in round tube and input shaft friction；In friction process
In, the groove in ladder input shaft can be engaged with friction block, and then rubbing device is driven to move together, rubbing device and output shaft
Connection, passing movement；When control coil magnetic field disappears, magnetic fluid momentary recovery Newtonian fluid state, friction block is in spring
It is pulled under effect into rubbing device, input shaft and ladder input shaft and the connectionless relationship of output shaft, so that motion isolation, this
The variation of magnetic fluid volume is offset by elastic rubber disk during one.
Claims (4)
1. a kind of magnetic-fluid clutch, composition includes: matrix shell, it is characterized in that: the matrix shell is provided with and rubs
Device is wiped, the matrix shell has closed end, and the closed end is provided with circular hole, and the rubbing device has friction envelope
Closed end, the friction closed end are provided with concentric circle holes, and output shaft, institute are inserted between the circular hole and the concentric circle holes
Fixation is connected by key between the output shaft stated and the friction closed end, the rubbing device connects ladder input shaft,
The ladder inputs axis connection input shaft, the input shaft connection gear, and the matrix shell is circumferentially provided with one group
Embedding groove, the embedding groove connect coil.
2. a kind of magnetic-fluid clutch according to claim 1, it is characterized in that: the rubbing device includes outer round tube,
The outer round tube connects interior round tube, and elastic rubber disk is connected between the interior round tube and the outer round tube, described
Interior round tube connecting spring, the spring connect friction block, and the ladder input shaft is circumferentially provided with one group of groove, described
Spring connects top plate, and the top plate cooperation groove uses, and passes through tooth between the gear and the output shaft
Wheel key connection is fixed.
3. a kind of magnetic-fluid clutch according to claim 2, it is characterized in that: the friction block is cylindrical body, it is described
Friction block be symmetrically embedded on the tube wall of the interior round tube.
4. a kind of working method of magnetic-fluid clutch, it is characterized in that: when gear band driven input shaft and ladder input shaft rotate
When, magnetic field is provided by the coil in control matrix shell, so that magnetic fluid in rubbing device is in field region Momentary magnetizing,
The interior pressure that friction block in corresponding magnetic fluid is subject to increases, and is axially moved, and friction block stretches out interior round tube and rubs with input shaft
It wipes；In friction process, the groove in ladder input shaft can be engaged with friction block, and then rubbing device is driven to move together, be rubbed
It wipes device to be connected with exporting axis, passing movement；When control coil magnetic field disappears, magnetic fluid momentary recovery Newtonian fluid state,
Friction block is pulled into rubbing device under the action of the spring, input shaft and ladder input shaft and the connectionless relationship of output shaft,
So that motion isolation, variation of magnetic fluid volume is offset by elastic rubber disk during this.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910182712.2A CN109737151A (en) | 2019-03-12 | 2019-03-12 | A kind of magnetic-fluid clutch and working method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910182712.2A CN109737151A (en) | 2019-03-12 | 2019-03-12 | A kind of magnetic-fluid clutch and working method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109737151A true CN109737151A (en) | 2019-05-10 |
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ID=66370123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910182712.2A Pending CN109737151A (en) | 2019-03-12 | 2019-03-12 | A kind of magnetic-fluid clutch and working method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109737151A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007120689A (en) * | 2005-10-31 | 2007-05-17 | Jidosha Denki Kogyo Co Ltd | Electromagnetic clutch |
| CN101548117A (en) * | 2007-04-26 | 2009-09-30 | 丰田自动车株式会社 | Frictional engagement device for automatic transmission |
| CN205089855U (en) * | 2015-10-09 | 2016-03-16 | 龙口中宇热管理系统科技有限公司 | Two -stage multi -disc formula electromagnetic clutch |
| CN205315542U (en) * | 2015-11-27 | 2016-06-15 | 莆田学院 | Binding speed adjustable clutch |
-
2019
- 2019-03-12 CN CN201910182712.2A patent/CN109737151A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007120689A (en) * | 2005-10-31 | 2007-05-17 | Jidosha Denki Kogyo Co Ltd | Electromagnetic clutch |
| CN101548117A (en) * | 2007-04-26 | 2009-09-30 | 丰田自动车株式会社 | Frictional engagement device for automatic transmission |
| CN205089855U (en) * | 2015-10-09 | 2016-03-16 | 龙口中宇热管理系统科技有限公司 | Two -stage multi -disc formula electromagnetic clutch |
| CN205315542U (en) * | 2015-11-27 | 2016-06-15 | 莆田学院 | Binding speed adjustable clutch |
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