CN204116015U - A kind of bellows magnetic flow liquid squeezing flow dynamic property test device - Google Patents
A kind of bellows magnetic flow liquid squeezing flow dynamic property test device Download PDFInfo
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- CN204116015U CN204116015U CN201420606122.0U CN201420606122U CN204116015U CN 204116015 U CN204116015 U CN 204116015U CN 201420606122 U CN201420606122 U CN 201420606122U CN 204116015 U CN204116015 U CN 204116015U
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- end cover
- guide holder
- flexible bags
- flow liquid
- magnetic flow
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Abstract
The utility model discloses a kind of bellows magnetic flow liquid squeezing flow dynamic property test device, comprise flexible bags, described flexible bags upper edge is by coaxial mounted upper end cover and upper guide holder pinch seal, flexible bags lower edge is by coaxial mounted bottom end cover and lower guide holder pinch seal, and outside, the outer cylinder inside of flexible bags are provided with field coil; Form working chamber between described flexible bags, upper end cover and bottom end cover, in working chamber, inject magnetic flow liquid or other testing liquids; Form guiding cavity between described flexible bags, upper guide holder and lower guide holder, guide the crimp of flexible bags.The magnetic flow liquid that the utility model can be used under the extruding of test magnetic flow liquid or elongational flow dynamics, particularly high frequency pumping extrudes or elongational flow dynamics; Also can be used for the test of other fluid equal-volumes or homalographic squeezing flow dynamics.
Description
Technical field
The utility model belongs to non-Newtonian fluid squeezing flow Dynamical Characteristics field, is specifically related to a kind of bellows magnetic flow liquid squeezing flow dynamic property test device.
Background technology
Field all extensive application such as the motor of squeezing flow in modern industry, bearing and lubrication.The intellectual material that magnetic flow liquid can regulate as a kind of rheological characteristics, is also widely used in every field.The pressure produced under other patterns of the pressure ratio produced under magnetic flow liquid squeeze mode all wants high, can be used for the vibration of isolation and the small size large load of decay.At present to the research of magnetic flow liquid extruding rheological characteristics, major part is confined to the research of the dynamic perfromance under static state, quasistatic or low-frequency excitation, perfect not enough to the research of the dynamic perfromance under high frequency pumping and mechanism thereof, under its high frequency pumping characteristic and mechanism urgently to be resolved hurrily.
Summary of the invention
The utility model provides the proving installation of a kind of magnetic flow liquid equal-volume or homalographic squeezing flow dynamics, can be used for the magnetic flow liquid extruding under the extruding of test magnetic flow liquid or elongational flow dynamics, particularly high frequency pumping or elongational flow dynamics; Also can be used for the test of other fluid equal-volumes or homalographic squeezing flow dynamics.
The technical scheme that the utility model is taked is:
A kind of bellows magnetic flow liquid squeezing flow dynamic property test device, comprise flexible bags 5, described flexible bags 5 upper edge is by coaxial mounted upper end cover 2 and upper guide holder 4 pinch seal, flexible bags 5 lower edge is by coaxial mounted bottom end cover 9 and lower guide holder 7 pinch seal, and outside, outer cylinder 8 inside of flexible bags 5 are provided with field coil 6; Form working chamber A between described flexible bags 5, upper end cover 2 and bottom end cover 9, in working chamber A, inject magnetic flow liquid or other testing liquids; Form guiding cavity B between described flexible bags 5, upper guide holder 4 and lower guide holder 7, guide the crimp of flexible bags 5.
Also comprise upper flange plate 1 and lower flange 10, upper flange plate 1 is fixedly connected with outer cylinder 8, and compresses upper end cover 2, and lower flange 10 is fixedly connected with bottom end cover 9.
Being provided with between described upper end cover 2 and upper guide holder 4 and adjusting pad 3, regulating by regulating the primary clearance of thickness to working chamber A of adjustment pad 3.
Described upper end cover 2 has bullport 2a, has two threaded hole 2b and 2c in bullport 2a lower end, be respectively filling orifice and vent port, and use hexagon socket head cap screw and rubber sheet gasket sealing; Described upper end cover 2 is also provided with connecting thread, is connected with upper guide holder 4; Bottom end cover 9 is provided with connecting thread, is connected with lower guide holder 7.
Described flexible bags 5 two ends are provided with O-ring seal 5a and lower seal 5b.
Described upper guide holder 4 is the same with lower guide holder 7 structure, and upper guide holder 4 and lower guide holder 7 are respectively equipped with seal groove 4a and lower seal groove cavity 7a, installs the upper O-ring seal 5a and lower seal 5b at flexible bags 5 two ends respectively.
The material of described upper guide holder 4 and lower guide holder 7 is NULL, and now magnetic induction line is respectively by upper end cover 2, outer cylinder 8, bottom end cover 9 and magnetic flow liquid, forms closed-loop path; The center section of working chamber A, namely the magnetic flow liquid between upper end cover 2, bottom end cover 9 is effective coverage, there is equally distributed magnetic field, and the cross-sectional area of effective coverage is identical, and the magnetic flow liquid be expressed to outside upper end cover 2, bottom end cover 9 is inactive area, there is low-intensity magnetic field.
The material of described upper guide holder 4 and lower guide holder 7 is permeability magnetic material, and now magnetic induction line is respectively by upper end cover 2, upper guide holder 4, outer cylinder 8, bottom end cover 9, lower guide holder 7 and magnetic flow liquid, and forms closed-loop path; Whole working chamber A is effective coverage, and the volume of the magnetic flow liquid in effective coverage keeps constant.
Described outer cylinder 8 inwall is provided with the unthreaded hole of different inner diameters, is formed respectively coordinate with upper flange plate 1, upper end cover 2 and bottom end cover 9, ensures the right alignment of the utility model test unit.
Described outer cylinder 8 has fairlead 8a, is drawn by field coil 6; Described outer cylinder 8 has some air hole 8b; Two or more field coils 6 can be laid in described outer cylinder 8 inside.
The course of work of the present utility model is as follows:
First, be connected with the load transducer of shaking table test board by described upper flange plate 1, lower flange 10 is connected as moved end with shaking table.
Secondly, shaking table start, lower flange 10 drives bottom end cover 9 and the to-and-fro movement of lower guide holder 7, thus the extruding realized magnetic flow liquid and the excitation that stretches.
Meanwhile, shaking table sensor Real-Time Monitoring and record experimental provision response in test and dynamics.The magnetic flow liquid squeezing flow dynamic characterization measurement of different primary clearance just can be realized by the thickness changing adjustment pad 3; By changing upper guide holder 4, the material of lower guide holder 7 can realize the test of magnetic flow liquid equal-volume and homalographic squeezing flow dynamics; Magnetic flow liquid squeezing flow dynamics under different magnetic field intensity can be tested by the size of current changed in coil; The vibration signal exported by changing shaking table can be tested quasi-static, the magnetic flow liquid squeezing flow dynamics dynamically especially under high-frequency excitation; Also the environmental cabinet temperature of adjustable shaking table, research temperature is to the affecting laws of magnetic flow liquid squeezing flow dynamics.
The utility model has the following advantages and good effect:
1, the utility model magnetic flow liquid compression properties proving installation utilizes flexible bags to carry out self sealss, can test magnetic flow liquid elongational flow dynamics simultaneously.Compare with the fluid compression flowing dynamics characteristic test device of infiltration type, avoid the impact of air on test findings; Compare with fluid compression flowing dynamics characteristic test device in the form of piston, avoid the impact of piston rod place friction force.
2, the utility model is provided with adjustment stroke, is provided with adjustment pad between upper end cover and upper guide holder, by changing the thickness of pad, can realize the adjustment of working chamber primary clearance easily.
3, on the utility model, guide holder and lower guide holder can adopt permeability magnetic material, can realize the test of magnetic flow liquid equal-volume squeezing flow characteristic; Also can adopt non-magnet_conductible material, the test of magnetic flow liquid homalographic squeezing flow characteristic can be realized.
4, this device upper end cover, bottom end cover and outer cylinder adopt permeability magnetic material, and borehole in the middle of upper end cover, optimize Distribution of Magnetic Field, strengthen the magnetic field intensity of working chamber; Simultaneously upper flange plate, lower flange adopt NULL, and the sensor of the magnetic field avoiding field coil to produce pair and its connection device has an impact.
Accompanying drawing explanation
Fig. 1 is bellows magnetic flow liquid squeezing flow dynamic property test device sectional view.
Fig. 2 is upper end cover sectional view.
Fig. 3 is upper guide holder (lower guide holder) sectional view.
Fig. 4 is flexible bags sectional view.
Fig. 5 is outer cylinder sectional view.
Fig. 6 is proving installation Distribution of Magnetic Field figure under original state.
Fig. 7 is magnetic flow liquid homalographic squeezing flow Distribution of Magnetic Field figure.
Fig. 8 is magnetic flow liquid equal-volume squeezing flow Distribution of Magnetic Field figure.
In figure:
1, upper flange plate; 2, upper end cover; 2a, bullport; 2b, filling orifice; 2c, vent port;
3, pad is adjusted; 4, upper guide holder; 4a, upper seal groove;
5, flexible bags; 5a, upper O-ring seal; 5b, lower seal;
6, field coil; 7, lower guide holder; 7a, lower seal groove cavity;
8, outer cylinder; 8a, fairlead; 8b, air hole;
9, bottom end cover; 10; Lower flange;
A, working chamber; B, guiding cavity; L, adjustment stroke; S, coupling bolt.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
A kind of bellows magnetic flow liquid squeezing flow dynamic property test device as described in Figure 1, comprise flexible bags 5, flexible bags 5 upper edge is by coaxial mounted upper end cover 2 and upper guide holder 4 pinch seal, flexible bags 5 lower edge is by coaxial mounted bottom end cover 9 and lower guide holder 7 pinch seal, and outside, outer cylinder 8 inside of flexible bags 5 are provided with field coil 6; Form working chamber A between described flexible bags 5, upper end cover 2 and bottom end cover 9, in working chamber A, inject magnetic flow liquid or other testing liquids; Form guiding cavity B between described flexible bags 5, upper guide holder 4 and lower guide holder 7, guide the crimp of flexible bags 5.
Preferably, also comprise upper flange plate 1 and lower flange 10, be connected by bolt S between upper flange plate 1 with outer cylinder 8, and compress upper end cover 2, lower flange 10 is fixedly connected with bottom end cover 9, and upper flange plate 1 and lower flange 10 are for the connection of proving installation of the present utility model and vibration table or other equipment.
Preferably, be provided with between described upper end cover 2 and upper guide holder 4 and adjust stroke L, be provided with adjustment pad 3, by the primary clearance regulating the thickness of adjustment pad 3 to regulate working chamber A.
Preferably, as shown in Figure 2, described upper end cover 2 has bullport 2a, distribute for guiding magnetic field, under original state, Distribution of Magnetic Field figure as shown in Figure 6, have two threaded hole 2b and 2c in bullport 2a lower end, be respectively filling orifice and vent port, and use hexagon socket head cap screw and rubber sheet gasket sealing;
Described upper end cover 2 is also provided with connecting thread, and be connected with upper guide holder 4, bottom end cover 9 is provided with connecting thread, is connected with lower guide holder 7;
Described flexible bags 5 two ends are provided with O-ring seal 5a and lower seal 5b, as shown in Figure 4, are used for realizing self sealss;
Described upper guide holder 4 is the same with lower guide holder 7 structure, and as shown in Figure 3, and upper guide holder 4 and lower guide holder 7 are respectively equipped with seal groove 4a and lower seal groove cavity 7a, is used for laying the upper O-ring seal 5a and lower seal 5b at flexible bags 5 two ends;
The material of described upper guide holder 4 and lower guide holder 7 can select NULL, for the magnetic flow liquid squeezing flow Dynamical Characteristics of homalographic, Distribution of Magnetic Field figure under squeezed state as shown in Figure 7, now magnetic induction line is respectively by upper end cover 2, outer cylinder 8, bottom end cover 9 and magnetic flow liquid, and forms closed-loop path.The center section of working chamber A, the magnetic flow liquid namely between upper end cover 2, bottom end cover 9 is effective coverage, there is equally distributed magnetic field, and the magnetic flow liquid be expressed to outside upper end cover 2, bottom end cover 9 is inactive area, and magnetic field is very weak, can ignore.Cross-sectional area now in effective coverage keeps constant, can realize the test of magnetic flow liquid homalographic squeezing flow dynamics.
The material of described upper guide holder 4 and lower guide holder 7 can select permeability magnetic material, for isopyknic magnetic flow liquid squeezing flow Dynamical Characteristics, Distribution of Magnetic Field figure under its squeezed state as shown in Figure 8, now magnetic induction line is respectively by upper end cover 2, upper guide holder 4, outer cylinder 8, bottom end cover 9, lower guide holder 7 and magnetic flow liquid, and forms closed-loop path.Whole working chamber A is effective coverage, and the volume of the magnetic flow liquid in effective coverage keeps constant, can realize the test of magnetic flow liquid equal-volume squeezing flow dynamics.
Described outer cylinder 8 inwall is provided with different inner diameters unthreaded hole, forms the right alignment coordinating and ensure the utility model test unit respectively with upper flange plate 1, upper end cover 2 and bottom end cover 9;
As shown in Figure 5, described outer cylinder 8 has fairlead 8a, for the extraction of field coil 6; Described outer cylinder 8 has some air hole 8b, with the circulation of air in warranty test process, avoids air pressure change on the impact of test findings.
Optionally, outer cylinder 8 and the connected mode of upper flange plate 1 can be threaded, interference is connected, weld;
Optionally, the seal groove laying the upper O-ring seal 5a and lower seal 5b at flexible bags 5 two ends can be located on upper end cover 2 and upper end cover 7;
Optionally, two or more coils can be laid to strengthen magnetic field intensity in outer cylinder 8 inside.
The course of work of the present utility model is as follows:
First, be connected with the load transducer of shaking table test board by described upper flange plate 1, lower flange 10 is connected as moved end with shaking table, and under original state, proving installation Distribution of Magnetic Field figure as shown in Figure 6.
Secondly, shaking table start, lower flange 10 drives bottom end cover 9 and the to-and-fro movement of lower guide holder 7, thus the extruding realized magnetic flow liquid and the excitation that stretches.
Meanwhile, shaking table sensor Real-Time Monitoring and record experimental provision response in test and dynamics.The magnetic flow liquid squeezing flow dynamic characterization measurement of different primary clearance just can be realized by the thickness changing adjustment pad 3; By changing upper guide holder 4, the material of lower guide holder 7 can realize the test of magnetic flow liquid equal-volume and homalographic squeezing flow dynamics; Magnetic flow liquid squeezing flow dynamics under different magnetic field intensity can be tested by the size of current changed in coil; The vibration signal exported by changing shaking table can be tested quasi-static, the magnetic flow liquid squeezing flow dynamics dynamically especially under high-frequency excitation; Also the environmental cabinet temperature of adjustable shaking table, research temperature is to the affecting laws of magnetic flow liquid squeezing flow dynamics.
Claims (8)
1. a bellows magnetic flow liquid squeezing flow dynamic property test device, it is characterized in that: comprise flexible bags (5), described flexible bags (5) upper edge is by coaxial mounted upper end cover (2) and upper guide holder (4) pinch seal, flexible bags (5) lower edge is by coaxial mounted bottom end cover (9) and lower guide holder (7) pinch seal, and outside, outer cylinder (8) inside of flexible bags (5) are provided with field coil (6); Form working chamber (A) between described flexible bags (5), upper end cover (2) and bottom end cover (9), in working chamber (A), inject magnetic flow liquid; Form guiding cavity (B) between described flexible bags (5), upper guide holder (4) and lower guide holder (7), guide the crimp of flexible bags (5).
2. a kind of bellows magnetic flow liquid squeezing flow dynamic property test device according to claim 1, it is characterized in that: also comprise upper flange plate (1) and lower flange (10), upper flange plate (1) is fixedly connected with outer cylinder (8), and compressing upper end cover (2), lower flange (10) is fixedly connected with bottom end cover (9).
3. a kind of bellows magnetic flow liquid squeezing flow dynamic property test device according to claim 1, it is characterized in that: be provided with between described upper end cover (2) and upper guide holder (4) and adjust pad (3), regulating by regulating the primary clearance of thickness to working chamber (A) of adjustment pad (3).
4. a kind of bellows magnetic flow liquid squeezing flow dynamic property test device according to claim 1, it is characterized in that: described upper end cover (2) has bullport (2a), two threaded hole (2b are had in bullport (2a) lower end, 2c), be respectively filling orifice and vent port, and use hexagon socket head cap screw and rubber sheet gasket sealing; (2) are also provided with connecting thread to described upper end cover, are connected with upper guide holder (4); Bottom end cover (9) is provided with connecting thread, is connected with lower guide holder (7).
5. a kind of bellows magnetic flow liquid squeezing flow dynamic property test device according to claim 1, is characterized in that: described flexible bags (5) two ends are provided with O-ring seal (5a) and lower seal (5b).
6. a kind of bellows magnetic flow liquid squeezing flow dynamic property test device according to claim 5, it is characterized in that: described upper guide holder (4) is the same with lower guide holder (7) structure, and upper guide holder (4) and lower guide holder (7) are respectively equipped with seal groove (4a) and lower seal groove cavity (7a), upper O-ring seal (5a) and the lower seal (5b) at flexible bags (5) two ends is installed respectively.
7. a kind of bellows magnetic flow liquid squeezing flow dynamic property test device according to claim 1, it is characterized in that: described outer cylinder (8) inwall is provided with the unthreaded hole of different inner diameters, formed with upper flange plate (1), upper end cover (2) and bottom end cover (9) respectively and coordinate, the right alignment of warranty test device.
8. a kind of bellows magnetic flow liquid squeezing flow dynamic property test device according to claim 1, is characterized in that: described outer cylinder (8) has fairlead (8a), is drawn by field coil (6); Described outer cylinder (8) has some air holes (8b); Two or more field coils (6) can be laid in described outer cylinder (8) inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420606122.0U CN204116015U (en) | 2014-10-17 | 2014-10-17 | A kind of bellows magnetic flow liquid squeezing flow dynamic property test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420606122.0U CN204116015U (en) | 2014-10-17 | 2014-10-17 | A kind of bellows magnetic flow liquid squeezing flow dynamic property test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204116015U true CN204116015U (en) | 2015-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420606122.0U Expired - Fee Related CN204116015U (en) | 2014-10-17 | 2014-10-17 | A kind of bellows magnetic flow liquid squeezing flow dynamic property test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204116015U (en) |
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2014
- 2014-10-17 CN CN201420606122.0U patent/CN204116015U/en not_active Expired - Fee Related
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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: 20150121 Termination date: 20161017 |
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| CF01 | Termination of patent right due to non-payment of annual fee |