CN204511470U - Self-regulation magnetic flow liquid individual prop - Google Patents
Self-regulation magnetic flow liquid individual prop Download PDFInfo
- Publication number
- CN204511470U CN204511470U CN201520049347.5U CN201520049347U CN204511470U CN 204511470 U CN204511470 U CN 204511470U CN 201520049347 U CN201520049347 U CN 201520049347U CN 204511470 U CN204511470 U CN 204511470U
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- China
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- magnetic flow
- flow liquid
- piston boit
- sealing ring
- hydraulic
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Abstract
The utility model discloses a kind of self-regulation magnetic flow liquid individual prop, it comprises hydraulic positioning system and magnetic flow liquid support system; Described hydraulic positioning system comprises base (1), locating piece (2), hydraulic cylinder (3), piston boit (12), guide ring (17), back-moving spring (18), sealing ring III (19) and bottom liquid hydraulic oil inlet (20); Described magnetic flow liquid support system comprises magnetorheological cylinder body (4), coil (5), end cap (6), pressure sensor (7), back-up block (8), straight pin (9), sealing ring I (10), magnetism-isolating loop (11), piston boit (12), top magnetic flow liquid inlet (13), magnetic flow liquid (14), sealing ring II (15) and is connected steel wire (16); The utility model without the need to pumping plant provide very large support, without the need to install triple-use valve valve seat, to the requirement of seal with the processing request of post inner surface of living is lower, the intensity that automatically can regulate support when load-supporting is undergone mutation well.
Description
Technical field
The utility model relates to a kind of individual prop, specifically a kind of self-regulation magnetic flow liquid individual prop.
Background technology
Magnetic flow liquid is that novel intelligent material jumpy occurs one its rheological behavior under externally-applied magnetic field, when without externally-applied magnetic field, show as the Newtonian fluid of good fluidity, but under additional magnetic fields, the rheological behavior generation great variety of fluid, its apparent viscosity can increase several order of magnitude in several milliseconds, and present the mechanical property of similar solid, and viscosity B coefficent is continuous reversible, namely once after removing magnetic field, become again the Newtonian fluid of good fluidity.
Magnetic rheology effect feature that is continuous, reversible, rapid and that be easy to control makes magnetic flow liquid to be widely used in fields such as Aero-Space, auto industry, hydraulic drive, biotechnology, medical treatment prospect.
Coal-face needs a large amount of support apparatus, common are wooden prop, hydraulic prop, hydraulic support etc.Existing hydraulic prop, is usually used in the support of underworkings, the roof timbering of coal mine work area, during work by triple-use valve to injection liquid force feed in seal chamber, promote live post rise, support works face; During unloading, in seal chamber, hydraulic oil is oppositely released by triple-use valve, and post of living declines.
But there is following problem in actual use in hydraulic prop: what 1, hydraulic oil needed pumping plant provides very large pressure, and cost is higher; 2, shell body is welded with the valve seat of triple-use valve, affects intensity; 3, very high to the requirement of sealing, once occur in duty revealing, accident can be caused to occur; 4, operating mode is complicated, can not make adjustment well to dynamic load.
Summary of the invention
For above-mentioned prior art Problems existing, the utility model provides a kind of self-regulation magnetic flow liquid individual prop, without the need to pumping plant provide very large support, without the need to install triple-use valve valve seat, to the requirement of seal with the processing request of post inner surface of living is lower, the intensity that automatically can regulate support when load-supporting is undergone mutation well.
To achieve these goals, the technical solution adopted in the utility model is: a kind of self-regulation magnetic flow liquid individual prop, is characterized in that,
It comprises hydraulic positioning system and magnetic flow liquid support system;
Described hydraulic positioning system comprises base, locating piece, hydraulic cylinder, piston boit, guide ring, back-moving spring, sealing ring III and bottom liquid hydraulic oil inlet; Described base and cylinder bottom interference fit are installed, piston boit is undertaken installing and moving by guide ring and is carried out the location of extreme lower position by locating piece, simultaneously by sealing ring III formation sealing, the upper and lower two ends of back-moving spring are connected with piston boit with hydraulic cylinder respectively, the hydraulic pressure confined space that described cylinder pressure body, sealing ring III and piston boit are formed;
Described magnetic flow liquid support system comprises magnetorheological cylinder body, coil, end cap, pressure sensor, back-up block, straight pin, sealing ring I, magnetism-isolating loop, piston boit, top magnetic flow liquid inlet, magnetic flow liquid, sealing ring II and is connected steel wire; Described magnetorheological cylinder body is arranged on hydraulic cylinder by the connection steel wire of both sides, and is positioned by the upper end of hydraulic cylinder, and magnetism-isolating loop coordinates with magnetorheological cylinder gap; Between coil and magnetorheological cylinder body, matched in clearance is installed, and end cap is arranged on magnetorheological cylinder body top, by positioning every magnetic coil; Sealing ring II and sealing ring I are arranged on magnetorheological cylinder body and end cap respectively, do not move with piston boit, and magnetic flow liquid is full of in the magnetic flow liquid confined space of coil II, piston boit, sealing ring I, the formation of magnetorheological cylinder body; Back-up block is arranged on piston boit top by straight pin, also pressure sensor is housed between back-up block and piston boit.
Described hydraulic oil inlet is connected with two-way valve, completes the turnover work of hydraulic oil.
Described its volume of magnetic flow liquid confined space does not change with the movement of piston boit.
Described piston boit is high-permeability material.
Described magnetism-isolating loop and end cap all adopt non-magnet material.
Operating principle is as follows: when starting working, and hydraulic oil enters hydraulic packing district, promotes piston boit moves, and after back-up block contacts with supporting surface, complete positioning work, now magnetic flow liquid part is in free discrete state, piston boit can freely on move; After having located, connect exciting current according to setting value in advance, magnetic flow liquid instantaneous solidification, possesses the yield stress of high strength, and piston boit cannot move, and completes support works, and hydraulic part quits work; In support process, the change of pressure sensor Real-Time Monitoring support loads, once undergo mutation, pressure change feedback, to magnet exciting coil electric current output system, regulates current value change support force automatically; After support works terminates, reduce current value, piston boit is slowly descending under the effect of back-moving spring, and hydraulic oil is flowed out by two-way valve.
Compared with existing pillar, the utility model has the following advantages:
1, traditional timberer operation mode be divided into location and support two parts, positioning work is completed by hydraulic part, and support works is completed by magnetic flow liquid part, improves reliability, reduces and supports difficulty.
2, hydraulic part be only responsible for Primary Location time work, support force required when not needing to provide work, do not need pumping plant to provide the hydraulic oil of high pressure, seal request is relatively low;
3, without the need to installing triple-use valve seat, pier construction is simple, and piston boit external surface, inner surface of cylinder block machining accuracy require lower relative to conventional column, and assembling is relatively easy, and without the need to welding procedure, structural strength is reliable;
4, by the one-tenth chained effect of magnetic flow liquid under magnetic fields, utilize its high yield stress to complete support works, the support force required for pillar is provided, stable and reliable for performance;
5, pressure sensor is installed, the change of abutment pressure can be detected in real time, feed back to magnet exciting coil in time, from the intensity of main regulation exciting current, can successfully manage complex working condition strong mad under the change of load emergentness, effectively reduce dynamic load impact.
Accompanying drawing explanation
Fig. 1 is the utility model structural entity schematic diagram;
Fig. 2 is the utility model original operating state schematic diagram;
Fig. 3 is the utility model maximum support view.
In figure: 1, base, 2, locating piece, 3, hydraulic cylinder, 4, magnetorheological cylinder body, 5, coil, 6, end cap, 7, pressure sensor, 8, back-up block, 9, straight pin, 10, sealing ring I, 11, magnetism-isolating loop, 12, piston boit, 13, magnetic flow liquid inlet, 14, magnetic flow liquid, 15, sealing ring II, 16, connect steel wire, 17, guide ring, 18, back-moving spring, 19, sealing ring III, 20, hydraulic oil inlet.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of self-regulation magnetic flow liquid individual prop,
It comprises hydraulic positioning system and magnetic flow liquid support system;
Described hydraulic positioning system comprises base 1, locating piece 2, hydraulic cylinder 3, piston boit 12, guide ring 17, back-moving spring 18, sealing ring III 19 and bottom liquid hydraulic oil inlet 20; Described base 1 is installed with cylinder bottom 3 interference fit, piston boit 12 undertaken installing and moving by guide ring 17 and by locating piece 2 carry out extreme lower position location, simultaneously by sealing ring III 19 formed sealing, back-moving spring about 18 two ends are connected with piston boit 12 with hydraulic cylinder 3 respectively, the hydraulic pressure confined space that described cylinder pressure body 3, sealing ring III 19 and piston boit 12 are formed; Hydraulic oil enters hydraulic pressure confined space promotion piston boit 12 by hydraulic oil inlet 20 and completes positioning work.
Described magnetic flow liquid support system comprises magnetorheological cylinder body 4, coil 5, end cap 6, pressure sensor 7, back-up block 8, straight pin 9, sealing ring I 10, magnetism-isolating loop 11, piston boit 12, top magnetic flow liquid inlet 13, magnetic flow liquid 14, sealing ring II 15 and is connected steel wire 16; Described magnetorheological cylinder body 4 is arranged on hydraulic cylinder 3 by the connection steel wire 16 of both sides, and is positioned by the upper end of hydraulic cylinder 3, magnetism-isolating loop 11 and magnetorheological cylinder body 4 matched in clearance; Between coil 5 and magnetorheological cylinder body 4, matched in clearance is installed, and end cap 6 is arranged on magnetorheological cylinder body 4 top, by positioning every magnetic coil 5; Sealing ring II 15 and sealing ring I 10 are arranged on magnetorheological cylinder body 4 and end cap 6 respectively, do not move with piston boit 12, and magnetic flow liquid 14 is full of in the magnetic flow liquid confined space of coil II 15, piston boit 12, sealing ring I 10, magnetorheological cylinder body 4 formation; Back-up block 8 is arranged on piston boit 12 top by straight pin 9, between back-up block 8 and piston boit 12, pressure sensor 7 is also housed, pressure sensor 7 can by support loads Real-time Feedback to excitation system, when load is undergone mutation, automatically the size of exciting current can be regulated, change support force and adapt to load, insurance is reliable more.。
Described hydraulic oil inlet 20 is connected with two-way valve, the less turnover work that just can complete hydraulic oil of the pressure needed for it.
Described its volume of magnetic flow liquid confined space does not change with the movement of piston boit 12, and before location, magnetic flow liquid 14 can arbitrarily flow under the effect not having magnetic field; Behind location, magnetic flow liquid 14 fixed line under magnetic fields, stops flowing, is in holding state.
Further, described piston boit 12 is high-permeability material, can improve magnetic property.
Described magnetism-isolating loop 11 and end cap 6 all adopt non-magnet material, reduce magnetic resistance, magnetic leakage, improve magnetic field utilization rate.
As shown in Figures 2 and 3, be in original state, piston boit 12 is positioned at minimum point by locating piece 2, and now magnetic flow liquid 14 is in discrete state and is full of in the magnetic flow liquid confined space that sealing ring I 10 and sealing ring II 15 formed;
As indicated in figure 2, back-moving spring 18 in the raw; By hydraulic oil inlet 20 to injection liquid force feed in hydraulic cylinder 3, piston boit 12 slowly rises, its rising range as figure indicate H; Along with the rising of piston boit 12, back-up block 8 contacts with supporting surface, completes positioning work;
Coil 5 galvanization, magnetic flow liquid under magnetic fields, rapid chaining; As shown in Figure 3, there is very high yield stress, hinder piston boit 12 to move, play the effect of support.Now back-moving spring 18 is in extended state, and hydraulic support system quits work, and the situation of change of support force is fed back to circuit by pressure sensor 7 in time, and circuit is according to the support force of the size of current adjustment pillar of Real-time Feedback adjustment magnet exciting coil 5.
After completing support works, turn down magnet exciting coil 5 electric current, piston boit 12, under the pulling force effect of back-moving spring 18, slowly declines, and hydraulic oil gets back to hydraulic oil container by hydraulic oil inlet 20.
In sum, the utility model by two independently annular seal space form: the latter half is hydraulic positioning system, is realized the impulse stroke of individual prop by hydraulic system fuel feeding, realizes the determination of Support Position; The first half is magnetic flow liquid support system, realizes support function by the chain of magnetic flow liquid 14, and reads the change of bearing load in real time by pressure sensor 7, changes support strength from the electric current of main regulation magnet exciting coil 5.
Claims (5)
1. a self-regulation magnetic flow liquid individual prop, is characterized in that,
It comprises hydraulic positioning system and magnetic flow liquid support system;
Described hydraulic positioning system comprises base (1), locating piece (2), hydraulic cylinder (3), piston boit (12), guide ring (17), back-moving spring (18), sealing ring III (19) and bottom liquid hydraulic oil inlet (20); Described base (1) and cylinder bottom (3) interference fit are installed, piston boit (12) undertaken installing and moving by guide ring (17) and by locating piece (2) carry out extreme lower position location, simultaneously by sealing ring III (19) formed sealing, back-moving spring (18) is connected with piston boit (12) with hydraulic cylinder (3) at two ends up and down respectively, the hydraulic pressure confined space that described cylinder pressure body (3), sealing ring III (19) and piston boit (12) are formed;
Described magnetic flow liquid support system comprises magnetorheological cylinder body (4), coil (5), end cap (6), pressure sensor (7), back-up block (8), straight pin (9), sealing ring I (10), magnetism-isolating loop (11), piston boit (12), top magnetic flow liquid inlet (13), magnetic flow liquid (14), sealing ring II (15) and is connected steel wire (16); Described magnetorheological cylinder body (4) is arranged on hydraulic cylinder (3) by the connection steel wire (16) of both sides, and is positioned by the upper end of hydraulic cylinder (3), magnetism-isolating loop (11) and magnetorheological cylinder body (4) matched in clearance; Between coil (5) and magnetorheological cylinder body (4), matched in clearance is installed, and end cap (6) is arranged on magnetorheological cylinder body (4) top, by positioning every magnetic coil (5); Sealing ring II (15) and sealing ring I (10) are arranged on magnetorheological cylinder body (4) and end cap (6) respectively, in the magnetic flow liquid confined space that mobile with piston boit (12), magnetic flow liquid (14) is full of coil II (15), piston boit (12), sealing ring I (10), magnetorheological cylinder body (4) are formed; Back-up block (8) is arranged on piston boit (12) top by straight pin (9), and pressure sensor (7) is also housed between back-up block (8) and piston boit (12).
2. a kind of self-regulation magnetic flow liquid individual prop according to claim 1, is characterized in that, described hydraulic oil inlet (20) is connected with two-way valve, completes the turnover work of hydraulic oil.
3. a kind of self-regulation magnetic flow liquid individual prop according to claim 1 and 2, is characterized in that, described its volume of magnetic flow liquid confined space does not change with the movement of piston boit (12).
4. a kind of self-regulation magnetic flow liquid individual prop according to claim 1 and 2, is characterized in that, described piston boit (12) is high-permeability material.
5. a kind of self-regulation magnetic flow liquid individual prop according to claim 1, is characterized in that, described magnetism-isolating loop (11) and end cap (6) all adopt non-magnet material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520049347.5U CN204511470U (en) | 2015-01-26 | 2015-01-26 | Self-regulation magnetic flow liquid individual prop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520049347.5U CN204511470U (en) | 2015-01-26 | 2015-01-26 | Self-regulation magnetic flow liquid individual prop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204511470U true CN204511470U (en) | 2015-07-29 |
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ID=53709460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520049347.5U Withdrawn - After Issue CN204511470U (en) | 2015-01-26 | 2015-01-26 | Self-regulation magnetic flow liquid individual prop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204511470U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775835A (en) * | 2015-01-26 | 2015-07-15 | 中国矿业大学 | Self-adjustment magnetorheological fluid single prop |
| CN105626104A (en) * | 2016-03-16 | 2016-06-01 | 徐州工程学院 | Suspended single hydraulic prop with compression sensing function |
| WO2021115025A1 (en) * | 2019-12-10 | 2021-06-17 | 新昌县陆恒机械有限公司 | Suspended unit hydraulic apparatus for mining |
-
2015
- 2015-01-26 CN CN201520049347.5U patent/CN204511470U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775835A (en) * | 2015-01-26 | 2015-07-15 | 中国矿业大学 | Self-adjustment magnetorheological fluid single prop |
| CN104775835B (en) * | 2015-01-26 | 2016-08-24 | 中国矿业大学 | A kind of self-regulation magnetic flow liquid individual prop |
| CN105626104A (en) * | 2016-03-16 | 2016-06-01 | 徐州工程学院 | Suspended single hydraulic prop with compression sensing function |
| WO2021115025A1 (en) * | 2019-12-10 | 2021-06-17 | 新昌县陆恒机械有限公司 | Suspended unit hydraulic apparatus for mining |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150729 Effective date of abandoning: 20160824 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20150729 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |