CN203859703U - Water hydraulic relief valve giant magnetostrictive driver - Google Patents
Water hydraulic relief valve giant magnetostrictive driver Download PDFInfo
- Publication number
- CN203859703U CN203859703U CN201420115525.5U CN201420115525U CN203859703U CN 203859703 U CN203859703 U CN 203859703U CN 201420115525 U CN201420115525 U CN 201420115525U CN 203859703 U CN203859703 U CN 203859703U
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- Prior art keywords
- giant magnetostrictive
- magnetostrictive rod
- relief valve
- water hydraulic
- hydraulic relief
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 230000005284 excitation Effects 0.000 claims abstract description 12
- 238000006073 displacement reaction Methods 0.000 abstract description 9
- 230000000630 rising effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000005381 magnetic domain Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
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- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The utility model relates to a water hydraulic relief valve giant magnetostrictive driver and belongs to the giant magnetostrictive technology field. The water hydraulic relief valve giant magnetostrictive driver comprises a giant magnetostrictive rod pretension mechanism and magnetic field generation devices distributed around the giant magnetostrictive rod pretension mechanism, wherein a main body of the giant magnetostrictive rod pretension mechanism is a main giant magnetostrictive rod mounted in a U-shaped sleeve, an enclosed end of the U-shaped sleeve is provided with a positioning device, one end of the main giant magnetostrictive rod is fixed with an output push rod having a boss, one end of the output push rod is provided with a pretension device, the magnetic field generation devices comprise an auxiliary giant magnetostrictive rod, an excitation coil, a bias coil and a permanent magnet which are sequentially distributed at periphery of the U-shaped sleeve. Force and displacement outputted by a driver are controlled by the water hydraulic relief valve giant magnetostrictive driver through controlling a current, a problem of temperature rising of the magnetostrictive rods is further solved, and control precision is improved.
Description
Technical field
The utility model relates to a kind of water hydraulic relief valve super-magnetostrictive drive, belongs to ultra-magnetic telescopic technical field.
Background technology
Giant magnetostrictive material is a kind of novel intellectual material, there is output displacement and power output good linearity, fast response time (summary responses), resolution is high, control precision is high, the advantage such as reproducible, super-magnetostrictive drive has that output displacement and power output are large, response fast, the advantage such as frequency band is wider and driving voltage is low, but magnetostrictive rod is easily heating in use, need to take measures to suppress the temperature rise of magnetostrictive rod.
Summary of the invention
For overcoming the deficiencies in the prior art, the utility model provides a kind of water hydraulic relief valve super-magnetostrictive drive, controls power and the displacement of driver output by controlling electric current, and solves the problem of temperature rise of magnetostrictive rod, improves control precision.
The technical solution of the utility model is: structure comprises giant magnetostrictive rod pre-tightening mechanism and is distributed in its magnetic field generation device around, the main body of giant magnetostrictive rod pre-tightening mechanism is the main giant magnetostrictive rod 8 being arranged in U-shaped sleeve 10, the blind end of U-shaped sleeve 10 has positioner, one end of main giant magnetostrictive rod 8 is fixed with the output ejector pin 13 with boss, there is pre-tightening apparatus one end of output ejector pin 13, and magnetic field generation device comprises auxiliary giant magnetostrictive rod 6, excitation coil 5, bias coil 4 and the permanent magnet 9 that is distributed in successively U-shaped sleeve 10 peripheries.
Described positioner is that adjusting bolt 1 is fixed on the blind end of U-shaped sleeve 10 by the fixing adjusting bolt 1 of base 2.
Described pre-tightening apparatus by be enclosed within the preloading spring 12 of output ejector pin 13 and fixedly the housing 11 of output ejector pin 13 form.
Described base 2 and housing 11 are combined into the shell of this device.
Described excitation coil 5 and bias coil 4 are placed in coil rack 3, and there is permanent magnet 9 upper end of coil rack 3, between permanent magnet 9 and bias coil 4, have air gap 7.
The boss of described output ejector pin 13 and coil rack 3 are slidably connected.
The surface of described auxiliary giant magnetostrictive rod 6 and main giant magnetostrictive rod 8 all has 5 eddy current straight troughs.
Principle of the present utility model: as shown in Figure 1, adjusting bolt 1, base 2, U-shaped sleeve 10, preloading spring 12 and output ejector pin 13 have formed giant magnetostrictive rod pre-tightening mechanism, select suitable pretightning force can make the energy conversion efficiency of ultra-magnetic telescopic generally in preferred range.Coil rack 3 is from inside to outside equipped with excitation coil 5, bias coil 4 and permanent magnet 9 successively, coil rack 3 two ends are supported by boss and the permanent magnet 9 of the boss of base 2, U-shaped sleeve 10, output ejector pin 13 respectively, the bias magnetic field energy that bias coil 4 produces makes giant magnetostrictive rod produce a polarizing magnetic field with some strength, so not only can make the flexible strain of rod in the wider range of linearity, can also effectively prevent the generation of excellent frequency multiplication phenomenon simultaneously; Auxiliary giant magnetostrictive rod 6 can pass to main giant magnetostrictive rod 8 power and the displacement of output by U-shaped sleeve 10, and main giant magnetostrictive rod 8 can be exported power and the displacement of twice then; Base 2, coil rack 3, output ejector pin 13, U-shaped sleeve 10 are permeability magnetic material, form closed magnetic circuit with auxiliary giant magnetostrictive rod 6, main giant magnetostrictive rod 8, closed magnetic circuit can not only well reduce leakage field, can also prevent from disturbing with extraneous instrument.
As shown in Figure 2, the surface of giant magnetostrictive rod has 5 equally distributed vortex grooves.On the one hand, because the eddy current effect of material bar mainly concentrates on top layer, open vortex groove and can reduce eddy current loss, and open and increased the number that material surface rotates freely crystal and magnetic domain after vortex groove, can reduce the mutual extruding between crystal and magnetic domain, reduce the obstruction that magnetic moment rotates, can effectively reduce magnetic hysteresis loss; On the other hand, vortex groove has expanded the area of dissipation of material bar, has reduced the contact area of material bar and coil rack, is conducive to improve heat dissipation capacity and reduces frictional heating.
The beneficial effects of the utility model are: volume is little, lightweight, output displacement large, High power output; Precompression and bigoted magnetic field are adjustable, can guarantee that magnetostrictive rod is in optimum state work; Output displacement and power output good linearity, fast response time (summary responses), resolution is high, control precision is high, reproducible; The vortex groove on magnetostrictive rod surface can suppress the temperature rise of magnetostrictive rod, improves the control precision of output displacement.
Accompanying drawing explanation
Fig. 1 is the utility model overall structure schematic diagram;
Fig. 2 is that schematic diagram is looked on the right side of the main giant magnetostrictive rod of the utility model and auxiliary giant magnetostrictive rod;
Fig. 3 is that the master of the main giant magnetostrictive rod of the utility model and auxiliary giant magnetostrictive rod looks schematic diagram.
In figure: 1-bolt, 2-base, 3-coil rack, 4-bias coil, 5-excitation coil, 6-assists giant magnetostrictive rod, 7-air gap, the main giant magnetostrictive rod of 8-, 9-permanent magnet, 10-U jacket cylinder, 11-housing, 12-preloading spring, 13-output ejector pin.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Execution mode one: as illustrated in fig. 1 and 2, the structure of present embodiment comprises giant magnetostrictive rod pre-tightening mechanism and is distributed in its magnetic field generation device around, the main body of giant magnetostrictive rod pre-tightening mechanism is the main giant magnetostrictive rod 8 being arranged in U-shaped sleeve 10, the blind end of U-shaped sleeve 10 has positioner, one end of main giant magnetostrictive rod 8 is fixed with the output ejector pin 13 with boss, there is pre-tightening apparatus one end of output ejector pin 13, magnetic field generation device comprises the auxiliary giant magnetostrictive rod 6 that is distributed in successively U-shaped sleeve 10 peripheries, excitation coil 5, bias coil 4 and permanent magnet 9.Positioner is that adjusting bolt 1 is fixed on the blind end of U-shaped sleeve 10 by the fixing adjusting bolt 1 of base 2.Pre-tightening apparatus by be enclosed within the preloading spring 12 of output ejector pin 13 and fixedly the housing 11 of output ejector pin 13 form.Base 2 and housing 11 are combined into the shell of this device.Excitation coil 5 and bias coil 4 are placed in coil rack 3, and there is permanent magnet 9 upper end of coil rack 3, between permanent magnet 9 and bias coil 4, have air gap 7.The boss of output ejector pin 13 and coil rack 3 are slidably connected.The surface of auxiliary giant magnetostrictive rod 6 and main giant magnetostrictive rod 8 all has 5 eddy current straight troughs.
Execution mode two: as shown in Figure 1, the structure of present embodiment comprises giant magnetostrictive rod pre-tightening mechanism and is distributed in its magnetic field generation device around, the main body of giant magnetostrictive rod pre-tightening mechanism is the main giant magnetostrictive rod 8 being arranged in U-shaped sleeve 10, the blind end of U-shaped sleeve 10 has positioner, one end of main giant magnetostrictive rod 8 is fixed with the output ejector pin 13 with boss, there is pre-tightening apparatus one end of output ejector pin 13, magnetic field generation device comprises the auxiliary giant magnetostrictive rod 6 that is distributed in successively U-shaped sleeve 10 peripheries, excitation coil 5, bias coil 4 and permanent magnet 9.Positioner is that adjusting bolt 1 is fixed on the blind end of U-shaped sleeve 10 by the fixing adjusting bolt 1 of base 2.Pre-tightening apparatus by be enclosed within the preloading spring 12 of output ejector pin 13 and fixedly the housing 11 of output ejector pin 13 form.Base 2 and housing 11 are combined into the shell of this device.Excitation coil 5 and bias coil 4 are placed in coil rack 3, and there is permanent magnet 9 upper end of coil rack 3, between permanent magnet 9 and bias coil 4, have air gap 7.The boss of output ejector pin 13 and coil rack 3 are slidably connected.
Execution mode three: as Fig. 1, shown in 2 and 3, the structure of present embodiment comprises giant magnetostrictive rod pre-tightening mechanism and is distributed in its magnetic field generation device around, the main body of giant magnetostrictive rod pre-tightening mechanism is the main giant magnetostrictive rod 8 being arranged in U-shaped sleeve 10, the blind end of U-shaped sleeve 10 has positioner, one end of main giant magnetostrictive rod 8 is fixed with the output ejector pin 13 with boss, there is pre-tightening apparatus one end of output ejector pin 13, magnetic field generation device comprises the auxiliary giant magnetostrictive rod 6 that is distributed in successively U-shaped sleeve 10 peripheries, excitation coil 5, bias coil 4 and permanent magnet 9.Positioner is that adjusting bolt 1 is fixed on the blind end of U-shaped sleeve 10 by the fixing adjusting bolt 1 of base 2.Pre-tightening apparatus by be enclosed within the preloading spring 12 of output ejector pin 13 and fixedly the housing 11 of output ejector pin 13 form.Base 2 and housing 11 are combined into the shell of this device.Excitation coil 5 and bias coil 4 are placed in coil rack 3, and there is permanent magnet 9 upper end of coil rack 3, between permanent magnet 9 and bias coil 4, have air gap 7.The surface of auxiliary giant magnetostrictive rod 6 and main giant magnetostrictive rod 8 all has 5 eddy current straight troughs.
Below by reference to the accompanying drawings embodiment of the present utility model is explained in detail, but the utility model is not limited to above-mentioned execution mode, in the ken possessing those of ordinary skills, can also under the prerequisite that does not depart from the utility model aim, make various variations.
Claims (7)
1. a water hydraulic relief valve super-magnetostrictive drive, it is characterized in that: comprise giant magnetostrictive rod pre-tightening mechanism and be distributed in its magnetic field generation device around, the main body of giant magnetostrictive rod pre-tightening mechanism is for being arranged on the main giant magnetostrictive rod (8) in U-shaped sleeve (10), the blind end of U-shaped sleeve (10) has positioner, one end of main giant magnetostrictive rod (8) is fixed with the output ejector pin (13) with boss, there is pre-tightening apparatus one end of output ejector pin (13), magnetic field generation device comprises the auxiliary giant magnetostrictive rod (6) that is distributed in successively U-shaped sleeve (10) periphery, excitation coil (5), bias coil (4) and permanent magnet (9).
2. water hydraulic relief valve super-magnetostrictive drive according to claim 1, is characterized in that: described positioner is that adjusting bolt (1) is fixed on the blind end of U-shaped sleeve (10) by the fixing adjusting bolt (1) of base (2).
3. water hydraulic relief valve super-magnetostrictive drive according to claim 2, is characterized in that: described pre-tightening apparatus by be enclosed within the preloading spring (12) of output ejector pin (13) and fixedly the housing (11) of output ejector pin (13) form.
4. water hydraulic relief valve super-magnetostrictive drive according to claim 3, is characterized in that: described base (2) and housing (11) are combined into the shell of this device.
5. water hydraulic relief valve super-magnetostrictive drive according to claim 1, it is characterized in that: described excitation coil (5) and bias coil (4) are placed in coil rack (3), there is permanent magnet (9) upper end of coil rack (3), between permanent magnet (9) and bias coil (4), has air gap (7).
6. water hydraulic relief valve super-magnetostrictive drive according to claim 1, is characterized in that: the boss of described output ejector pin (13) and coil rack (3) are slidably connected
7. water hydraulic relief valve super-magnetostrictive drive according to claim 1, is characterized in that: the surface of described auxiliary giant magnetostrictive rod (6) and main giant magnetostrictive rod (8) all has 5 eddy current straight troughs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420115525.5U CN203859703U (en) | 2014-03-14 | 2014-03-14 | Water hydraulic relief valve giant magnetostrictive driver |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420115525.5U CN203859703U (en) | 2014-03-14 | 2014-03-14 | Water hydraulic relief valve giant magnetostrictive driver |
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| CN203859703U true CN203859703U (en) | 2014-10-01 |
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| CN201420115525.5U Expired - Fee Related CN203859703U (en) | 2014-03-14 | 2014-03-14 | Water hydraulic relief valve giant magnetostrictive driver |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106230308A (en) * | 2016-09-05 | 2016-12-14 | 山东大学 | A kind of ball screw assembly, pretightning force TT&C system having from perceptive function and method |
| CN110838802A (en) * | 2018-08-15 | 2020-02-25 | 湖南科技学院 | Giant magnetostrictive driver |
| CN112013150A (en) * | 2019-05-30 | 2020-12-01 | 宁波方太厨具有限公司 | Electromagnetic valve and water heater comprising same |
-
2014
- 2014-03-14 CN CN201420115525.5U patent/CN203859703U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106230308A (en) * | 2016-09-05 | 2016-12-14 | 山东大学 | A kind of ball screw assembly, pretightning force TT&C system having from perceptive function and method |
| CN106230308B (en) * | 2016-09-05 | 2017-12-12 | 山东大学 | A kind of ball screw assembly, pretightning force TT＆C system and method having from perceptional function |
| CN110838802A (en) * | 2018-08-15 | 2020-02-25 | 湖南科技学院 | Giant magnetostrictive driver |
| CN112013150A (en) * | 2019-05-30 | 2020-12-01 | 宁波方太厨具有限公司 | Electromagnetic valve and water heater comprising same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 Termination date: 20150314 |
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| EXPY | Termination of patent right or utility model |