CN105697040B - One kind is based on the new single extension suspended type hydraulic prop of lever principle - Google Patents
One kind is based on the new single extension suspended type hydraulic prop of lever principle Download PDFInfo
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- 230000005540 biological transmission Effects 0.000 claims description 56
- 239000000725 suspension Substances 0.000 claims description 16
- 238000003780 insertion Methods 0.000 claims description 14
- 230000037431 insertion Effects 0.000 claims description 14
- 239000000839 emulsion Substances 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 9
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- 239000011435 rock Substances 0.000 abstract description 2
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- 239000007788 liquid Substances 0.000 description 10
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- 238000004458 analytical method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 239000000178 monomer Substances 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 238000004945 emulsification Methods 0.000 description 3
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
- E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
- E21D15/515—Particular fluids not covered by any chemical subdivision
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/60—Devices for withdrawing props or chocks
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/11—Complex mathematical operations for solving equations, e.g. nonlinear equations, general mathematical optimization problems
- G06F17/12—Simultaneous equations, e.g. systems of linear equations
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/17—Mechanical parametric or variational design
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Abstract
The new single extension suspended type hydraulic prop of lever principle is based on the invention discloses one kind, including top cover, suspend lid, live post, handle valve body, oil cylinder, high pressure transmits discharge chambe, powered compressor room, reset discharge chambe, stress transmits cylinder, lever, back-moving spring, base, triple-use valve, inside pillar discharge chambe is transmitted by using high pressure, powered compressor room, reset discharge chambe, stress transmits cylinder, lever and other rod members etc., which constitute to be driven using pressure difference, increases the structural system of pillar work support pressure with lever principle, additionally aid pillar drop post and shrink and can realize and can be shunk completely after long-time is supported.The design reduces hydraulic prop because overlying rock compression leg, dead post occurs to be reacted not in time pressing suddenly, in addition the accident such as detonation incidence, improve supporting level and the security of working environment of the pillar in underground coal mine.
Description
Technical field
The present invention relates to mine support apparatus field, more specifically, more particularly to one kind is based on the new list of lever principle
Extension suspended type hydraulic prop.
Background technology
Hydraulic prop is a kind of monomer support apparatus grown up 1970s, is mainly used in middle thick coal
Layer and thin seam working surface.Because it is using flexibly, conveniently, the roof timbering of working face cannot be only used for, it can also be used to fully mechanized mining
The end support of working face and gib.
Hydraulic prop is divided into piston hydraulic single prop and floated type single hydraulic prop stay.Floated monomer hydraulic
Pillar is a kind of new outside injection type hydraulic pillar, and it is divided into single flexible and double major classes of telescopic prop two again.Single telescopic suspension
Pressure fluid is entered in the annular housing between oil cylinder and live post from triple-use valve when formula hydraulic prop works, then under live post
The radial direction through hole in portion enters live post inner chamber, and in the presence of pressure fluid, live post is in axial compression, while the hydraulic pressure of live post inner chamber
Power extends axially through suspension lid and acted on top cover, forms the power in opposite direction with roof pressure.It is living by research with calculating
The liquid of post inner chamber assume responsibility for the 3/4~4/5 of pillar working resistance, and the hydraulic coupling is also referred to as suspending power, and the suspending power directly leads to
Cross suspension lid to act on top cover, stress of the live post in axial direction is only the 1/4~1/5 of roof pressure.
At present, in production practices wide variety of floated type single hydraulic prop stay compared to piston hydraulic single prop
Advantage is in the majority, but also has that support force is not enough in use or top plate is pressed and causes it compression leg occur, falls post, dead post suddenly
The phenomenons such as detonation, can also may slowly occur excessively because of triple-use valve aerial drainage speed in phenomenon, and floated type single hydraulic prop stay is propped up in long-time
Also there are problems that not receiving completely during unloading drop post after support effect.
The content of the invention
(1) the technical problem to be solved in the present invention
In order to solve the problem of prior art is present, improve security that floated type single hydraulic prop stay uses in underground and
High efficiency is good based on the new single extension suspended type monomer hydraulic of lever principle the invention provides a kind of simple in construction, effect
Pillar, is unloaded its object is to the pressure using cylinder body internal emulsification liquid come the support works resistance and realization for improving hydraulic prop
Post is received quickly and completely when carrying drop post.
(2) technical scheme
The new single extension suspended type hydraulic prop of lever principle is based on the invention provides one kind, including：It is top cover, outstanding
Floating head, live post, handle valve body, oil cylinder, high pressure transmission discharge chambe, powered compressor room, reset discharge chambe, stress transmission cylinder, lever,
Back-moving spring, base, triple-use valve, the suspension side of covering that the top cover is fixed at the top of the live post, the handle valve body
The cylinder upper end mouthful, the oil cylinder lower port and the base seamless welding, the reset are installed in the triple-use valve
Spring upper and lower ends are respectively welded at suspend lid and the base, and bias is installed in the live post inner chamber, the height
Pressure transmission discharge chambe seamless welding is on inwall of the live post upper end with the suspension lid, and the reset discharge chambe is located at described
Immediately below high pressure transmission discharge chambe, and seamless welding is on the live post inwall, the reset discharge chambe bottom and the live post
Lower port is alignd, in addition to piston I, piston II, piston III, drive link and bottom push rod, and described bottom push rod one end is fixed with described
In piston I, the sealed insertion reset discharge chambe, the other end is welded in the base, and described drive link one end is fixed
State in piston II, the sealed insertion reset discharge chambe, the other end is fixed with the piston III, the sealed insertion high pressure
Transmit in discharge chambe, the stress transmission cylinder is welded on the base, in addition to bar living, transmission lever, fix bar, unipods pressure
Piece, spring I, spring II, the unipods tabletting put the spring II and are installed in the footing of the stress transmission cylinder and the bottom
Between seat, in the bar sealed insertion stress transmission cylinder living, and the bar upper end living is vertical by the fix bar
The live post inwall is fixed on, the transmission lever puts the sealed insertion bar upper end living of the spring I, the kinetic pressure
Contracting room is welded on the transmission lever upper end, in addition to piston IV, power rail and pole, and the piston IV is installed in the kinetic pressure
In contracting room, and sealing is intact during motion, and described power rail one end is fixed with the piston IV, and the other end is hinged on the lever
One end, the lever other end is articulated with the drive link, and the pole upper end is welded on the suspension and covered, and lower end is hinged
In on the fulcrum of the lever.
Further, the footing of the stress transmission cylinder is provided with one section of movable clamp groove with the unipods tabletting contact position, and
Discharge orifice is provided with the movable clamp groove bottom.
Further, the stress transmission cylinder surfaces are uniformly provided with multiple pressure balance control press-in valves, the pressure
Balance controls press-in valve to allow emulsion in the cylinder cavity to be transmitted into the stress in cylinder, and holding inside and outside differential pressure is
Zero.
Further, the bar upper end living is contacted with the transmission lever using sealing ring sealing at bore, and provided with one section
Anti-extrusion de- movable clamp groove.
Further, the transmission lever bottom is provided with tabletting piston, and the tabletting piston is installed in the anti-extrusion deactivation and moved
In neck.
Further, the drive link is transmitted at the bore of discharge chambe and the reset discharge chambe and institute through the high pressure
State bottom push rod to pass through using encapsulation process at the bore of the reset discharge chambe, powered compressor room upper port is provided with anticreep
Screens, and the upper surface of the piston IV directly contacts with emulsion in the live post inner chamber.
The new single extension suspended type hydraulic prop of lever principle is based on the invention provides one kind, with lever principle
Specific theory analysis is carried out to the design system as follows：
Assuming that：Hydraulic prop is raised above after L, and it is highly h to reset discharge chambe lower volume1, base area S1It is (living
Fill in I area), decrement △ h1, injection initial pressure be P1Gas a, middle part volume height h7, injection initial pressure be P7Gas
B, upper volume is highly h2, base area S2(area of piston II), decrement △ h2, injection initial pressure be P2Gas c is high
Pressure transmission discharge chambe is highly h3, base area S3(area of piston III), decrement △ h3, injection initial pressure be P3Gas d,
Powered compressor room is highly h4, base area S4(area of piston IV), decrement △ h4, injection initial pressure be P4Gas e, thick stick
Thick stick length end length L1, short end length L2。
Emulsion pressure is P in oil cylinder after hydraulic prop is stable, now, by The Ideal-Gas Equation PV=
NRT can be obtained and (be ignored temperature change before and after compression)：
1. powered compressor room：P4 /=P (P4 /For powered compressor gas pressure inside when emulsion pressure is P in oil cylinder)
∵P4V4=P4 /V4 /, V4=S4×h4, V4 /=S4×(h4-△h4)
∴△h4=h4-P4h4/P4 /=h4-P4h4/P
Now power rail drives lever length end to produce downward power F4For：
F4=P4 /×S4=(P4V4/V4 /)×S4=P4S4h4/(h4-△h4)
The upward power F of lever short end is obtained by lever principle5For：
∵F5×L2=F4×L1, △ h4/L1=△ h3/L2
∴F5=F4L1/L2=P4 /S4L1/L2=PS4L1/L2, △ h3=△ h4L2/L1
2. high pressure transmits discharge chambe：
∵P3V3=P3 /V3 /, V3=S3×h3, V3 /=S3×(h3-△h3)
∴P3 /=P3V3/V3 /=P3h3/(h3-△h3)
High pressure transmission compression indoor pressure F3For：
F3=P3 /×S3=P3h3S3/(h3-△h3)
3. discharge chambe upper volume is resetted：
∵P2V2=P2 /V2 /, V2=S2×h2, V2 /=S2×(h2-△h2), △ h2=△ h3
∴P2 /=P2V2/V2 /=P2h2/(h2-△h2), △ h2=△ h4L2/L1
Reset pressure F in discharge chambe upper volume2For：
F2=P2 /×S2=P2h2S2/(h2-△h2)
4. volume in the middle part of discharge chambe is resetted：
∵P7V7=P7 /V7 /, V7=S2×h7, V7 /=S2×(△h1+△h2)
∴P7 /=P7V7/V7 /=P7h7/(△h1+△h2)
Reset pressure F in the volume of discharge chambe middle part7For：
F7=P7 /×S2=P7h7S2/(△h1+△h2)
5. discharge chambe lower volume is resetted：
∵P1V=P1 /V1 /, V1=S1×h1, V1 /=S1×(h1-△h1)
∴P1 /=P1V1/V1 /=P1h1/(h1-△h1)
Reset pressure F in discharge chambe upper volume1For：
F1=P1 /×S1=P1h1S1/(h1-△h1)
6. force analysis is carried out to drive link；
F3+F2-F7=F5
P3 /×S3+P2 /×S2-P7 /×S2=PS4L1/L2
P3 /×S3+P2h2S2/(h2-△h2)-P7h7S2/(△h1+△h2)=PS4L1/L2
P3 /=PS4L1/L2S3+P7h7S2/{S3(△h1+△h2)}-P2h2S2/{S3(h2-△h2)}
∵△h1=L, △ h2=△ h4L2/L1,△h4=h4-P4h4/P
∴P3 /=PS4L1/L2S3+P7h7S2/{S3(L+(h4-P4h4/P)L2/L1)}-P2h2S2/{S3(h2-(h4-P4h4/P)
L2/L1)}
Therefore, use the design structure that provides of the present invention will extra increase pillar work support pressure for：
PIncrease=P3 /=PS4L1/L2S3+P7h7S2/{S3(L+(h4-P4h4/P)L2/L1)}-P2h2S2/{S3(h2-(h4-P4h4/P)
L2/L1)}
7. force analysis is carried out to base of single hydraulic Prop：
P×SBottom+P4 /×S4-P1 /×S1+P7 /×S1=FBackplanes support power
Wherein P4 /×S4The power that cylinder feeds back to powered compressor room pressure base is transmitted by stress for powered compressor room.
8. state analysis when post drops in hydraulic prop unloading：
Because during unloading drop post, emulsion pressure is reduced rapidly in oil cylinder, and due to pressure balance principle, P7 /Increase,
P4 /、FSpring、PStress transmits cylinderReduce, and △ P1 /×S1+△PStress transmits cylinder×SUnipods tabletting-△P7 /×S1>0, so contributing to pillar to shrink.
(3) beneficial effect
The technical scheme provided using the present invention, compared with prior art, with following remarkable result：
(1) one kind of the invention is based on the new single extension suspended type hydraulic prop of lever principle, by using pressure difference
Transmission is combined with lever principle, in the case where not changing original monomer liquid compression leg general structure, carries out internal structure system
Design, the theoretical analysis incorporates experience into checking computations, show that it realizes extra increase using the pressure of emulsion in oil cylinder well
The work support pressure of pillar, reduce hydraulic prop because overlying rock suddenly come press and pillar reaction press not in time
Post, dead post, in addition the accident such as detonation incidence, improve its supporting level and the safety of working environment in underground coal mine
Property.
(2) one kind of the invention is based on the new single extension suspended type hydraulic prop of lever principle, by using pressure difference
Balance system combination back-moving spring solves the problems, such as the incomplete contraction that current hydraulic prop occurs when unloading pressure drop post, leads to
Theory analysis is crossed, show that the system design contributes to pillar to drop post and shrinks and can realize contraction completely.
(3) one kind of the invention is based on the new single extension suspended type hydraulic prop of lever principle, by using this knot
Structure design can be adjusted by the hydraulic pressure for controlling each structural parameters, the gaseous species being filled with and its density and emulsion power pack to provide
The extra supercharging size of control, can also prevent that hydraulic pressure is excessive detonation phenomenon, the purely mechanic design of system, knot occurs because emulsion power pack is provided
Structure is simple, safe and reliable.
Brief description of the drawings
Fig. 1 is based on the new single extension suspended type hydraulic prop structural representation of lever principle for one kind of the present invention；
Fig. 2 is based on the new single extension suspended type hydraulic prop setting prop structural representation of lever principle for one kind of the present invention
Figure；
Fig. 3 is based on the new single extension suspended type hydraulic prop stress transmission cylinder knot of lever principle for one kind of the present invention
Structure schematic diagram；
Fig. 4 is based on the new single extension suspended type hydraulic prop of lever principle in standard machinery for one kind of the present invention
Coal-face use state schematic diagram；
In figure：1- top covers；2-, which suspends, to be covered；3- handle valve bodies；4- levers；5- live posts；6- drive links；7- oil cylinders；8- bottoms are pushed away
Bar；9- bases；10- work bars；11- stress transmits cylinder；12- transmission levers；13- power rails；14- triple-use valves；15- poles；16- resets
Spring；17- gases d；18- pistons III；19- gases e；20- gases c；21- pistons II；22- gases b；23- resets discharge chambe；
24- pistons I；25- gases a；26- bottoms push rod welding base；27- stress transmits cylinder bottom pin；28- pressure balances control press-in valve
Door；29- fix bars；30- powered compressors room；31- pistons IV；32- high pressures transmit discharge chambe；33- poles weld base；34- is close
Seal；35- tabletting pistons；36- springs I；37- movable clamp grooves；38- unipods tablettings；39- unipods tabletting socles；40- springs II；
41- discharge orifices；42- goafs；43- metal hinge top beams；44- top plates；45- ribs；46- drag conveyors；47- rollers are mined
Machine；48- floated type single hydraulic prop stays；The anti-extrusion de- movable clamp grooves of 49-.
Embodiment
Embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples.Following examples are used for
Illustrate the present invention, but can not be used for limiting the scope of the present invention.
As shown in Figure 1, Figure 2, Figure 3 shows, one kind that the present invention is provided is based on the new single extension suspended type monomer liquid of lever principle
Pillar is pressed, including：Top cover 1, suspension lid 2, live post 5, handle valve body 3, oil cylinder 7, high pressure transmission discharge chambe 32, powered compressor room
30th, discharge chambe 23, stress transmission cylinder 11, lever 4, back-moving spring 16, base 9, triple-use valve 14 are resetted, the top cover 1 is fixed on
The top of the suspension lid 2 at the top of live post 5, the handle valve body 3 and the triple-use valve 14 are installed on the oil cylinder 7
Port, the lower port of oil cylinder 7 and the seamless welding of base 9, the upper and lower ends of back-moving spring 16 are respectively welded at described
Suspension lid 2 and the base 9, and bias is installed in the inner chamber of live post 5, the high pressure transmission seamless welding of discharge chambe 32 exists
On the inwall of the upper end of live post 5 and the suspension lid 2, the reset discharge chambe 23 is being located at high pressure transmission discharge chambe 32 just
Lower section, and seamless welding is on the inwall of live post 5, the reset bottom of discharge chambe 23 is alignd with the lower port of live post 5, also
Including the piston I 24, the piston II 21, the piston III 18 and the drive link 6, the bottom push rod 8, the bottom push rod
8 one end are fixed with the piston I 24, the sealed insertion reset discharge chambe 23, and the other end is welded in the base 9, institute
State the one end of drive link 6 to be fixed with the piston II 21, the sealed insertion reset discharge chambe 23, the other end is fixed with described
In piston III 18, the sealed insertion high pressure transmission discharge chambe 32, the stress transmission cylinder 11 is welded on the base 9,
Also include bar 10 living, transmission lever 12, fix bar 29, unipods tabletting 38, spring I 36, spring II 40, the unipods tabletting 38 is put
The spring II 40 is installed between the footing of the stress transmission cylinder 11 and the base 9, the sealed insertion of bar 10 living
In the stress transmission cylinder 11, and the inwall of live post 5 is fixed in the upper end of bar living 10 vertically by the fix bar 29,
The transmission lever 12 puts the sealed insertion upper end of bar 10 living of the spring I 36, and the powered compressor room 30 is welded on
The upper end of transmission lever 12, in addition to the piston IV 31, the power rail 13, the pole 15, the piston IV 31 are installed
Sealing is intact in the powered compressor room 30, and during motion, and described one end of power rail 13 is fixed with the piston IV 31, separately
One end is hinged on one end of the lever 4, and the other end of lever 4 is articulated with the drive link 6, the upper end of pole 15 welding
On the suspension lid 2, lower end is articulated with the fulcrum of the lever 4.
Further, the footing of the stress transmission cylinder 11 is provided with one section of activity with the contact position of unipods tabletting 38
Neck 37, and the discharge orifice 41 is provided with the bottom of movable clamp groove 37, stress transmission cylinder 11 surface is uniformly provided with many
The individual pressure balance control press-in valve 28, the pressure balance control press-in valve 28 allows newborn in the inner chamber of oil cylinder 7
Change liquid to enter in stress transmission cylinder 11, it is zero to keep inside and outside differential pressure.The upper end of bar living 10 is contacted with the transmission lever 12
Sealed at bore using the sealing ring 34, and provided with one section of anti-extrusion de- movable clamp groove 49；The bottom of transmission lever 12 is set
There is the tabletting piston 35, the tabletting piston 35 is installed in the anti-extrusion de- movable clamp groove 49.The drive link 6 passes through institute
State at the bore of high pressure transmission discharge chambe 32 and the reset discharge chambe 23 and the bottom push rod 8 resets discharge chambe 23 through described
Bore at use encapsulation process, the upper port of powered compressor room 30 is provided with anticreep screens, and the upper end of the piston IV 31
Face is directly contacted with emulsion in the inner chamber of live post 5.
One kind that the present invention is provided is based on the new single extension suspended type hydraulic prop of lever principle, and operating method is such as
Under：
As shown in figure 4, one kind that the present invention is provided should based on the new single extension suspended type hydraulic prop of lever principle
For standard machinery coal-face, used cooperatively with the metal hinge top beam 43 in horizontally or diagonally coal seam coal work
The supporting of top plate 44 described in face.
As shown in Figure 1 and Figure 2, operating procedure is as follows：
1. setting prop and just support
Pressure fluid is entered in the annular housing between the oil cylinder 7 and the live post 5 from the triple-use valve 14, then from institute
The radial direction through hole for stating the bottom of live post 5 enters the inner chamber of live post 5.It is the live post 5, described outstanding in the presence of pressure fluid
Floating head 2, the top cover 1 rise and support the top plate 44.At the same time, the bar living 10 rises and risen with the live post 5,
Pressure is less than external emulsification hydraulic coupling in the stress transmission cylinder 11, promotes automatic of the pressure balance control press-in valve 28
Opening makes emulsion enter in stress transmission cylinder 11, keeps inside and outside differential pressure balance；Resetted when the live post 5 rises with described
The relatively described bottom push rod 8 of discharge chambe 23 is moved up, and causes the middle part pressure reduction of reset discharge chambe 23, and bottom pressure increases
Greatly.When the floated type single hydraulic prop stay 48 is supported under roof pressure, the top cover 1, the suspension lid 2, the work
Post 5 is in axial compression, while the hydraulic coupling of the inner chamber of the live post 5, which extends axially through the suspension lid 2, acts on the top cover 1
On, and the hydraulic coupling of the inner chamber of the live post 5 also acts against the piston IV 31 and makes its relatively described powered compressor room 30 downward
The internal gas e19 of compression keeps pressure balance, and the pressure that the gas e19 compressions are produced acts on the powered compressor room
30 bottoms act on the stress by tabletting piston 35 described in the lower end of transmission lever 12 and transmit the internal emulsification liquid of cylinder 11 again through institute
State unipods tabletting 38 and transmit the force to the base 9, the power rail 13 is driven when the piston IV 31 compression motion downwards
And the long end of the lever 4 is transmitted the force to, make the fulcrum of the relatively described pole 15 of the lever 4, in the short end of lever 4
Producing the power of an amplification makes the motion upwards of the relatively described live post 5 of the drive link 6, causes the piston II 21 to compress the gas
Body c20 makes the top pressure increase of reset discharge chambe 23, and the piston III 18 compresses in high pressure transmission discharge chambe 32
The gas d17, gives the suspension lid 2, then act on by the suspension lid 2 by gas d17 described in medium by pressure transmission
On the top cover 1, the power in opposite direction with roof pressure is formd.
2. carrying and overflow
When roof pressure increase, the floated type single hydraulic prop stay 48 bears pressure increase, causes the micro- contraction of pillar to make
Fluid pressure increases in inner chamber, and the lever design structure at this moment provided by the present invention can increase pillar support force, play pillar
The cushioning effect of safety valve aerial drainage；When roof pressure exceedes the 10% of pillar yield load, safety valve is opened, outside liquid
Overflow, pillar chamber pressure is decreased, contracted under pillar, the state of internal lever structure also changes therewith；When pillar, institute is loaded
Less than yield load 10% when, safety valve close, intracavity liquid stop it is excessive.
3. unload and prop drawing
Using unloading hand opening feather valve, working liquid pressure reduction in pillar and discharge outward, now, it is described should
Fluid pressure is more than the external world in power transmission cylinder 11, internal high pressure liquid is let out from described by compressing the unipods tabletting 38 downwards
Discharge orifice 41 is discharged, at the same time, and the bar 10 living reduces with the live post 5 and is recovered to the stress and transmits in cylinder 11.Work as institute
Stating fluid pressure in live post 5 reduces, and causes the piston IV 31 in the powered compressor room 30 to withdraw, and will pass through the lever
4 produce a downward power on the drive link 6, and the drive link 6 cooperates with withdrawing for the piston II 21 and piston III 18
Move down together.The live post 5, not only by deadweight and the effect of the back-moving spring 16, is also moved down when retracting by the live post 5
The relatively described reset discharge chambe 23 under differential pressure action of Shi Suoshu pistons I 24 moves up effect, completes the process of unloading drop post, withdraws
Pillar.
Embodiments of the invention are provided for the sake of example and description, and are not exhaustively or by this to send out
It is bright to be limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Choosing
Select and describe embodiment and be more preferably to illustrate the principle and practical application of the present invention, and make one of ordinary skill in the art
It will be appreciated that the present invention is so as to design the various embodiments with various modifications suitable for special-purpose.
Claims (6)
1. one kind is based on the new single extension suspended type hydraulic prop of lever principle, it is characterised in that including：It is top cover (1), outstanding
Floating head (2), live post (5), handle valve body (3), oil cylinder (7), high pressure transmission discharge chambe (32), powered compressor room (30), reset pressure
Contracting room (23), stress transmission cylinder (11), lever (4), back-moving spring (16), base (9), triple-use valve (14), the top cover (1) are solid
Above the suspension lid (2) at the top of the live post (5), the handle valve body (3) and the triple-use valve (14) are installed
In the oil cylinder (7) upper port, oil cylinder (7) lower port and the base (9) seamless welding, on the back-moving spring (16)
Lower two ends are respectively welded at suspend lid (2) and the base (9), and bias is installed in the live post (5) inner chamber, described
High pressure is transmitted discharge chambe (32) seamless welding and covered in the live post (5) upper end with described suspend on the inwall of (2), described to reset pressure
Contracting room (23) is located at immediately below high pressure transmission discharge chambe (32), and seamless welding is on the live post (5) inwall, described multiple
Position discharge chambe (23) bottom is alignd with the live post (5) lower port, in addition to piston I (24), piston II (21), piston III
(18), drive link (6) and bottom push rod (8), described bottom push rod (8) one end are fixed with the piston I (24), described in sealed insertion
Reset in discharge chambe (23), the other end is welded in the base (9), and described drive link (6) one end is fixed with the piston II
(21), in sealed insertion reset discharge chambe (23), the other end is fixed with the piston III (18), described in sealed insertion
In high pressure transmission discharge chambe (32), the stress transmission cylinder (11) is welded on the base (9), in addition to bar (10) living, biography
Bar (12), fix bar (29), unipods tabletting (38), spring I (36), spring II (40) are passed, the unipods tabletting (38) puts institute
State spring II (40) to be installed between the footing of the stress transmission cylinder (11) and the base (9), bar (10) sealing living
Formula is inserted in the stress transmission cylinder (11), and institute is fixed in bar living (10) upper end vertically by the fix bar (29)
Live post (5) inwall is stated, the transmission lever (12) puts sealed insertion bar (10) upper end living of the spring I (36), institute
State powered compressor room (30) and be welded on the transmission lever (12) upper end, in addition to piston IV (31), power rail (13) and pole
(15), the piston IV (31) is installed in the powered compressor room (30), and sealing is intact during motion, the power rail
(13) one end is fixed with the piston IV (31), and the other end is hinged on one end of the lever (4), lever (4) other end
The drive link (6) is articulated with, pole (15) upper end is welded on described suspend and covered on (2), and lower end is articulated with the lever
(4) on fulcrum.
2. it is according to claim 1 a kind of based on the new single extension suspended type hydraulic prop of lever principle, its feature
It is：The footing of the stress transmission cylinder (11) is provided with one section of movable clamp groove (37) with unipods tabletting (38) contact position, and
Discharge orifice (41) is provided with the movable clamp groove (37) bottom.
3. it is according to claim 1 a kind of based on the new single extension suspended type hydraulic prop of lever principle, its feature
It is：Described stress transmission cylinder (11) surface is uniformly provided with multiple pressure balance control press-in valves (28), the pressure balance
Control press-in valve (28) allows emulsion in oil cylinder (7) inner chamber to enter in stress transmission cylinder (11), keeps inside and outside
Pressure difference is zero.
4. it is according to claim 1 a kind of based on the new single extension suspended type hydraulic prop of lever principle, its feature
It is：Bar living (10) upper end is contacted with the transmission lever (12) using sealing ring (34) sealing at bore, and provided with one section
Anti-extrusion de- movable clamp groove (49).
5. it is according to claim 4 a kind of based on the new single extension suspended type hydraulic prop of lever principle, its feature
It is：Transmission lever (12) bottom is provided with tabletting piston (35), and the tabletting piston (35) is installed in the anti-extrusion deactivation and moved
In neck (49).
6. it is according to claim 1 a kind of based on the new single extension suspended type hydraulic prop of lever principle, its feature
It is：The drive link (6) is transmitted at the bore of discharge chambe (32) and the reset discharge chambe (23) and institute through the high pressure
Bottom push rod (8) is stated through using encapsulation process at the bore of the reset discharge chambe (23), on the powered compressor room (30)
Port is provided with anticreep screens, and the piston IV (31) upper surface is directly contacted with emulsion in the live post (5) inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610262011.6A CN105697040B (en) | 2016-04-22 | 2016-04-22 | One kind is based on the new single extension suspended type hydraulic prop of lever principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610262011.6A CN105697040B (en) | 2016-04-22 | 2016-04-22 | One kind is based on the new single extension suspended type hydraulic prop of lever principle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105697040A CN105697040A (en) | 2016-06-22 |
| CN105697040B true CN105697040B (en) | 2017-11-07 |
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|---|---|---|---|
| CN201610262011.6A Expired - Fee Related CN105697040B (en) | 2016-04-22 | 2016-04-22 | One kind is based on the new single extension suspended type hydraulic prop of lever principle |
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| CN (1) | CN105697040B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107461212A (en) * | 2017-09-07 | 2017-12-12 | 中煤北京煤矿机械有限责任公司 | Hydraulic support pressure balance rod-type triple retractable column |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203867594U (en) * | 2014-06-12 | 2014-10-08 | 王志远 | Ultrahigh supporting suspension single hydraulic prop for three-use valve low installation and high-position injection |
| CN204591315U (en) * | 2015-03-20 | 2015-08-26 | 毕玉战 | A kind of light-duty mining single hydraulic supporting column with suspension type plunger |
| CN204716259U (en) * | 2015-04-15 | 2015-10-21 | 华坪方圆中盛工贸有限公司 | Maintenance mining single prop |
| CN204783066U (en) * | 2015-06-17 | 2015-11-18 | 安徽瑞达机械有限公司 | Ladder suspension hydraulic prop |
| CN204851297U (en) * | 2015-08-24 | 2015-12-09 | 常州天泰矿山设备制造有限公司 | Suspension hydraulic prop |
| CN205677643U (en) * | 2016-04-22 | 2016-11-09 | 安徽理工大学 | A kind of based on lever principle novel single extension suspended type hydraulic prop |
-
2016
- 2016-04-22 CN CN201610262011.6A patent/CN105697040B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203867594U (en) * | 2014-06-12 | 2014-10-08 | 王志远 | Ultrahigh supporting suspension single hydraulic prop for three-use valve low installation and high-position injection |
| CN204591315U (en) * | 2015-03-20 | 2015-08-26 | 毕玉战 | A kind of light-duty mining single hydraulic supporting column with suspension type plunger |
| CN204716259U (en) * | 2015-04-15 | 2015-10-21 | 华坪方圆中盛工贸有限公司 | Maintenance mining single prop |
| CN204783066U (en) * | 2015-06-17 | 2015-11-18 | 安徽瑞达机械有限公司 | Ladder suspension hydraulic prop |
| CN204851297U (en) * | 2015-08-24 | 2015-12-09 | 常州天泰矿山设备制造有限公司 | Suspension hydraulic prop |
| CN205677643U (en) * | 2016-04-22 | 2016-11-09 | 安徽理工大学 | A kind of based on lever principle novel single extension suspended type hydraulic prop |
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| Publication number | Publication date |
|---|---|
| CN105697040A (en) | 2016-06-22 |
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