CN106150530A - Hydraulic prop prop raising tool - Google Patents
Hydraulic prop prop raising tool Download PDFInfo
- Publication number
- CN106150530A CN106150530A CN201610510775.2A CN201610510775A CN106150530A CN 106150530 A CN106150530 A CN 106150530A CN 201610510775 A CN201610510775 A CN 201610510775A CN 106150530 A CN106150530 A CN 106150530A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- prop
- mixing device
- liquid mixing
- emulsified liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007788 liquid Substances 0.000 claims abstract description 54
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 2
- 230000003068 static effect Effects 0.000 abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 9
- 239000000839 emulsion Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 5
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 4
- 238000009355 double cropping Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
Abstract
The invention discloses a kind of hydraulic prop prop raising tool, including emulsified liquid mixing device, double acting pressurized cylinder and reversing arrangement: high pressure cylinder one end of double acting pressurized cylinder is connected through check valve with emulsified liquid mixing device, the other end of high pressure cylinder is connected with drain pipe road through check valve, the low pressure (LP) cylinder of double acting pressurized cylinder is connected with emulsified liquid mixing device through reversing arrangement, and emulsified liquid mixing device is connected with drain pipe road through check valve.Apply hydraulic prop prop raising tool disclosed by the invention, static pressure water is introduced into emulsified liquid mixing device and carries out proportioning, then liquid is in reversing arrangement enters to the low pressure (LP) cylinder of double acting pressurized cylinder, in check valve enters to high pressure cylinder, double acting pressurized cylinder, due to the difference of sectional area, creates highly pressurised liquid according to hydraulic principle and realizes supercharging, then reversing arrangement commutates, repeating above-mentioned work process, complete automatic reverse, solution prop raising tool liter column efficiency is low, the problem of complex operation.
Description
Technical field
The present invention relates to technical equipment field, colliery, rise for hydraulic prop more particularly, it relates to a kind of
Post device.
Background technology
Along with the development of science and technology, people are when exploiting colliery, and the equipment of employing is the most increasingly advanced, improves colliery
The efficiency of exploitation, also reduces the probability that people surprisingly occur in underground work, it is ensured that the personal safety of operating worker simultaneously.
Driving face in coal mine gib commonly used hydraulic prop supporting, when using hydraulic prop supporting
Needing high pressure liquid to provide power, install hydraulic power unit and take up room greatly, consumption electric energy, to take personnel more, the existing liter in market
Post device is based on manually, and needs artificial commutation, and during commutation, feed flow is cut off, and rises column efficiency low, complex operation.
In sum, how to efficiently solve prop raising tool and rise that column efficiency is low, the problem of complex operation, be current this area skill
Art personnel's urgent problem.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of hydraulic prop prop raising tool, to solve prop raising tool liter
Column efficiency is low, the problem of complex operation.
In order to achieve the above object, the present invention provides following technical scheme:
A kind of hydraulic prop prop raising tool, including emulsified liquid mixing device, double acting pressurized cylinder and reversing arrangement:
High pressure cylinder one end of described double acting pressurized cylinder is connected through check valve with described emulsified liquid mixing device, described high pressure
The other end of cylinder is connected with drain pipe road through check valve, the low pressure (LP) cylinder of described double acting pressurized cylinder through described reversing arrangement with described
Emulsified liquid mixing device connects, and described emulsified liquid mixing device is connected with described drain pipe road through check valve.
Preferably, described reversing arrangement includes hydraulic control one-way valve, main reversing valve and is arranged at described main reversing valve both sides
Pressure keeps oil cylinder, and described hydraulic control one-way valve is arranged at the both sides of described low pressure (LP) cylinder and is connected with described emulsified liquid mixing device, institute
State main reversing valve to be connected with described emulsified liquid mixing device, described low pressure (LP) cylinder respectively.
Preferably, described high pressure cylinder and described low pressure (LP) cylinder interference fit.
Preferably, described hydraulic control one-way valve is positioned on described double acting pressurized cylinder, and the spool of described hydraulic control one-way valve is through top
Bar connects with described low pressure (LP) cylinder, and the sidewall of the through described double acting pressurized cylinder in one end of described push rod is positioned at described low pressure (LP) cylinder.
Preferably, the end cap of described double acting pressurized cylinder with described low pressure cylinder body through threadeding.
Preferably, the both sides of described low pressure (LP) cylinder and described high pressure cylinder are provided with the silk hole for being connected with pipeline respectively.
Preferably, the bottom of described emulsified liquid mixing device is provided with the jet orifice for jet.
Preferably, described emulsified liquid mixing device is provided with the screw for regulating matched proportion density.
Preferably, described reversing arrangement is specially solenoid directional control valve, and described solenoid directional control valve is joined with described emulsion respectively
Connect than device, described low pressure (LP) cylinder.
The hydraulic prop prop raising tool that the present invention provides, including emulsified liquid mixing device, double acting pressurized cylinder and changing
To device.Wherein, high pressure cylinder one end of double acting pressurized cylinder is connected through check valve with emulsified liquid mixing device, another of high pressure cylinder
End is connected with drain pipe road through check valve, and the low pressure (LP) cylinder of double acting pressurized cylinder is connected with emulsified liquid mixing device through reversing arrangement,
Emulsified liquid mixing device is connected with drain pipe road through check valve.
The hydraulic prop prop raising tool that the application present invention provides, static pressure water is introduced into emulsified liquid mixing device and joins
Ratio, then liquid is in reversing arrangement enters to the low pressure (LP) cylinder of double acting pressurized cylinder, in check valve enters to high pressure cylinder, double cropping
With pressurized cylinder due to the difference of sectional area, creating highly pressurised liquid according to hydraulic principle and realize supercharging, then reversing arrangement is carried out
Commutation, repeats above-mentioned work process, completes automatic reverse.It is clear that the hydraulic prop prop raising tool that the present invention provides,
Realized the supercharging of static pressure water by double acting pressurized cylinder, complete commutation by reversing arrangement and carry out automatic reverse, time saving and energy saving, solution
Prop raising tool liter column efficiency of determining is low, the problem of complex operation.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
The schematic diagram of the hydraulic prop prop raising tool that Fig. 1 provides for the embodiment of the present invention；
The structural representation of the double acting pressurized cylinder that Fig. 2 provides for the embodiment of the present invention.
In accompanying drawing, labelling is as follows:
Check valve 1, pressure keep oil cylinder 2, main reversing valve 3, hydraulic control one-way valve 4, double acting pressurized cylinder 5, emulsion ratio
Device 6, high pressure cylinder 7, end cap 8, silk 9, low pressure (LP) cylinder 10, plunger 11, spool 12, push rod 13.
Detailed description of the invention
The embodiment of the invention discloses a kind of hydraulic prop prop raising tool, rise that column efficiency is low, behaviour solving prop raising tool
Make loaded down with trivial details problem.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
Refer to the schematic diagram of the hydraulic prop prop raising tool that Fig. 1-Fig. 2 Fig. 1 provides for the embodiment of the present invention；Fig. 2
Structural representation for the double acting pressurized cylinder that the embodiment of the present invention provides.
In a kind of specific embodiment, hydraulic prop prop raising tool, including emulsified liquid mixing device 6, double cropping
With pressurized cylinder 5 and reversing arrangement.Wherein, high pressure cylinder 7 one end of double acting pressurized cylinder 5 and emulsified liquid mixing device 6 are through check valve 1
Connecting, the other end of high pressure cylinder 7 is connected with drain pipe road through check valve 1, and the low pressure (LP) cylinder 10 of double acting pressurized cylinder 5 is through reversing arrangement
Being connected with emulsified liquid mixing device 6, emulsified liquid mixing device 6 is connected with drain pipe road through check valve 1.Application is the present invention provide
During hydraulic prop prop raising tool, after static pressure water completes proportioning by emulsified liquid mixing device 6, by pipeline to up to double cropping
With high pressure cylinder 7 and the low pressure (LP) cylinder 10 of pressurized cylinder 5, plunger 11 sectional area of double acting pressurized cylinder 5 is different, and plunger 11 is by low pressure (LP) cylinder 10
Move to high pressure cylinder 7, create highly pressurised liquid according to hydraulic principle and realize supercharging, complete commutation by reversing arrangement.
General, check valve 1 can be the check valve 1 of hydraulic control one-way valve 4 or other forms, to the kind of check valve 1 not
Being construed as limiting, as long as identical technique effect can be reached, its concrete position and annexation refer to prior art,
This repeats no more.
During the hydraulic prop prop raising tool that the application present invention provides, by double acting pressurized cylinder 5 and reversing arrangement
Coordinate, complete supercharging and the automatic reverse of liquid, it is achieved the output of highly pressurised liquid, improve and rise a column efficiency, save time, laborsaving, it is possible to
Automatic reverse continuous liquid supply.
Concrete, reversing arrangement includes hydraulic control one-way valve 4, main reversing valve 3 and is arranged at the pressure guarantor of main reversing valve 3 both sides
Holding oil cylinder 2, hydraulic control one-way valve 4 is arranged at the both sides of low pressure (LP) cylinder 10 and is connected with emulsified liquid mixing device 6, main reversing valve 3 respectively with
Emulsified liquid mixing device 6, low pressure (LP) cylinder 10 connect.Static pressure water by pipeline in main reversing valve 3 enters to low pressure (LP) cylinder 10, due to double
The difference of plunger 11 sectional area of effect pressurized cylinder 5, plunger 11 by low pressure (LP) cylinder 10 towards high pressure cylinder 7 one lateral movement, in high pressure cylinder 7
Liquid realize supercharging, then after realizing supercharging, low pressure (LP) cylinder 10 pressure release, due to the static pressure hydraulic pressure of emulsified liquid mixing device 6 powerful in
The pressure of the low pressure (LP) cylinder 10 after pressure release, hydraulic control one-way valve 4 turns on, and owing to the pressure of main reversing valve 3 both sides is unbalanced, pressure keeps
Oil cylinder 2 both sides promote the spool 12 of main reversing valve 3 to commutate, and the static pressure water of low pressure (LP) cylinder 10 is flow back into through main reversing valve 3 by pipeline
In oil cylinder.After main reversing valve 3 completes commutation, static pressure water repeats said process, then carries out the pressurization of static pressure water, and passes through
Drain pipe road is flowed out.In other embodiments, it is also possible to complete commutation by the reversing arrangement of other forms, as long as can reach
Identical technique effect, is not construed as limiting concrete implementation mode.
Further, high pressure cylinder 7 and low pressure (LP) cylinder 10 interference fit.In one end of double acting pressurized cylinder 5, high pressure cylinder 7 is with low
Cylinder pressure 10 interference fit, is directly connected low pressure (LP) cylinder 10 with high pressure cylinder 7, it is not necessary to is attached by screw etc., completes high pressure
Cylinder 7 and low pressure (LP) cylinder 10 fixing, in other embodiments, it is also possible to side is arranged end cap 8 opposite side and carried out by interference fit
Fixing, it is also possible to be attached by end cap 8, the two is fixed, but end cap 8 is set in the both sides of low pressure (LP) cylinder 10 and produces system
Make relatively complicated, increase labor time, concrete, can need to be set voluntarily, all the present invention's according to actual production
In protection domain.
On the basis of the various embodiments described above, hydraulic control one-way valve 4 is positioned on double acting pressurized cylinder 5, the valve of hydraulic control one-way valve 4
Core 12 connects with low pressure (LP) cylinder 10 through push rod 13, and the sidewall of the through double acting in one end pressurized cylinder 5 of push rod 13 is positioned at low pressure (LP) cylinder 10.
In static pressure water enters to low pressure (LP) cylinder 10, under force, plunger 11 by low pressure (LP) cylinder 10 to high pressure cylinder 7 side shifting, in low pressure
Arranging hydraulic control one-way valve 4 on the sidewall of cylinder 10, spool 12 is connected with push rod 13, and the other end of push rod 13 protrudes the side of low pressure (LP) cylinder 10
Wall so that plunger 11 touches with push rod 13 when moving to sidewall, and then band movable valve plug 12 spring, hydraulic control one-way valve 4 realizes leading
Logical, thus carry out pressure release, the both sides of main reversing valve 3 are unbalanced due to pressure, complete commutation process.By hydraulic control one-way valve 4 He
The cooperation of push rod 13, it is achieved the commutation of main reversing valve 3.
Concrete, the end cap 8 of double acting pressurized cylinder 5 with low pressure (LP) cylinder 10 through threadeding.Preferably, in order to install and repair
Convenient, the end cap 8 of double acting pressurized cylinder 5 with low pressure (LP) cylinder 10 through threadeding so that the most convenient when installing and repair, height
Cylinder pressure 7 can be arranged on end cap 8 by interference fit, or be threaded connection and be configured, but be threaded and also need to carry out
Individually processing so that production process is complex.In other embodiments, it is also possible to select the connection of other forms, to specifically
Connected mode be not construed as limiting, as long as identical technique effect can be reached.
Further, the both sides of low pressure (LP) cylinder 10 and high pressure cylinder 7 are provided with the silk hole for being connected with pipeline respectively.At height
The both sides of cylinder pressure 7, the both sides of low pressure (LP) cylinder 10 are respectively provided with a hole, and pipeline completes to increase with double acting by the cooperation in silk hole and silk 9
Fixing, in other embodiments, it is also possible to select other devices to be configured of cylinder pressure 5.
Further, the bottom of emulsified liquid mixing device 6 is provided with the jet orifice for jet.Fill at emulsion ratio
The bottom putting 6 arranges aperture, completes proportioning by keyhole formation jet, in other embodiments, it is also possible to arrange other jets
Device carries out jet, but the structure of aperture is relatively simple, and it is the most convenient to produce.
Concrete, emulsified liquid mixing device 6 is provided with the screw for regulating matched proportion density.The degree of depth is regulated by screw
The concentration of regulation emulsion, completes proportioning, and general, emulsified liquid mixing device 6 is overall structure, completes to join by high-pressure spray
Ratio, in other embodiments, it is also possible to select the device of other forms to be adjusted concentration, as long as identical technology can be reached
Effect, is not construed as limiting concrete implementation form.
Further, reversing arrangement is specially solenoid directional control valve, solenoid directional control valve respectively with emulsified liquid mixing device 6, low
Cylinder pressure 10 connects.Concrete, reversing arrangement can also be solenoid directional control valve, completes commutation by solenoid directional control valve, and realizes double
The iterative motion of effect pressurized cylinder 5, in other embodiments, it is also possible to be configured by electric change valve, all at this
In the protection domain of invention.
Specific works process is: static pressure water by pipeline in main reversing valve 3 enters to low pressure (LP) cylinder 10, double acting pressurized cylinder
In the high pressure cylinder 7 of 5, static pressure water also enters through check valve 1, according to hydraulic principle, owing to plunger 11 sectional area is different, plunger 11 by
Low pressure (LP) cylinder 10 is to high pressure cylinder 7 one lateral movement, and the liquid in low pressure (LP) cylinder 10 flows back in the cylinder body of main reversing valve 3 by the road, high pressure
Fluid pressurization in cylinder 7 also flows to drain pipe road from check valve 1, it is achieved the pressurization of static pressure water, plunger 11 continues to height
Cylinder pressure 7 one lateral movement, to touching with one end sidewall, push rod 13 touches spring, and hydraulic control one-way valve 4 commutates, and liquid flow to by the road
Low pressure (LP) cylinder 10 and flow to the cylinder body of main reversing valve 3 through low pressure (LP) cylinder 10, the pressure of main reversing valve 3 both sides is unbalanced, and pressure keeps oil
Cylinder 2 promotes spool 12 to commutate, and static pressure water is entered in low pressure (LP) cylinder 10 body by main reversing valve 3 again, repeats above-mentioned work process, monomer
Hydraulic prop prop raising tool continuously commutates and provides high-pressure emulsion.
In a kind of specific embodiment, the hydraulic prop prop raising tool that the present invention provides, including emulsion ratio
Device 6 and emulsion automatic reverse pressurizer two parts composition.Emulsified liquid mixing device 6 is integral design, passes through high pressure
Jet completes proportioning, by the concentration of regulation screw regulation emulsion.Emulsion pressurizer is double acting pressurized cylinder 5, is not required to
Want electricity or wind be power, by the static pressure water of down-hole certain pressure by proportioning by emulsion be pressurized to more than 10 MPas.Supercharging
Device is controlled motion by main reversing valve 3 and travel control device, it is possible to realize automatic reverse, as long as opening feed water valve lock, supercharging
Device just can be continuing to supply highly pressurised liquid, and main reversing valve 3 both sides have two pressure to keep oil cylinder 2, and pressure keeps oil cylinder 2 side
Connecting with main reversing valve 3 spool 12, opposite side connects travel control device, and when making main reversing valve 3 be failure to actuate, holding position is fixed,
When plunger 11 moves to certain top, side, plunger 11 end face will force push rod 13 to move, holddown spring, and push rod 13 connects
Pilot operated directional control valve together opens pressure release, causes main reversing valve 3 both sides to occur that pressure is unbalanced, main reversing valve 3 automatic reverse,
Making plunger 11 return, the realization that thus goes round and begins again moves back and forth continuously, thus constantly discharges highly pressurised liquid.
The present invention provide monomer fluid pillar prop raising tool, take up room and be capable of automatic reverse, rise column efficiency
High, time saving and energy saving, simple to operate.
In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is and other
The difference of embodiment, between each embodiment, identical similar portion sees mutually.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple amendment to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein and features of novelty phase one
The widest scope caused.
Claims (9)
1. a hydraulic prop prop raising tool, it is characterised in that include emulsified liquid mixing device (6), double acting pressurized cylinder
And reversing arrangement (5):
High pressure cylinder (7) one end of described double acting pressurized cylinder (5) is connected through check valve (1) with described emulsified liquid mixing device (6),
The other end of described high pressure cylinder (7) is connected with drain pipe road through check valve (1), the low pressure (LP) cylinder of described double acting pressurized cylinder (5)
(10) being connected with described emulsified liquid mixing device (6) through described reversing arrangement, described emulsified liquid mixing device (6) is through check valve
(1) it is connected with described drain pipe road.
Hydraulic prop prop raising tool the most according to claim 1, it is characterised in that described reversing arrangement includes hydraulic control
Check valve (4), main reversing valve (3) and be arranged at described main reversing valve (3) both sides pressure keep oil cylinder (2), described hydraulic control list
The both sides being arranged at described low pressure (LP) cylinder (10) to valve (4) are connected with described emulsified liquid mixing device (6), described main reversing valve (3)
It is connected with described emulsified liquid mixing device (6), described low pressure (LP) cylinder (10) respectively.
Hydraulic prop prop raising tool the most according to claim 2, it is characterised in that described high pressure cylinder (7) is with described
Low pressure (LP) cylinder (10) interference fit.
4. according to the hydraulic prop prop raising tool described in any one of claim 1-3, it is characterised in that described fluid-control one-way
Valve (4) is positioned on described double acting pressurized cylinder (5), and the spool (12) of described hydraulic control one-way valve (4) is low with described through push rod (13)
Cylinder pressure (10) connects, and the sidewall of the through described double acting pressurized cylinder (5) in one end of described push rod (13) is positioned at described low pressure (LP) cylinder
(10) in.
Hydraulic prop prop raising tool the most according to claim 4, it is characterised in that described double acting pressurized cylinder (5)
End cap (8) with described low pressure (LP) cylinder (10) through threadeding.
Hydraulic prop prop raising tool the most according to claim 5, it is characterised in that described low pressure (LP) cylinder (10) and described
The both sides of high pressure cylinder (7) are provided with the silk hole for being connected with pipeline respectively.
Hydraulic prop prop raising tool the most according to claim 6, it is characterised in that described emulsified liquid mixing device
(6) bottom is provided with the jet orifice for jet.
Hydraulic prop prop raising tool the most according to claim 7, it is characterised in that described emulsified liquid mixing device
(6) screw for regulating matched proportion density it is provided with on.
Hydraulic prop prop raising tool the most according to claim 1, it is characterised in that described reversing arrangement is specially electricity
Magnetic reversal valve, described solenoid directional control valve is connected with described emulsified liquid mixing device (6), described low pressure (LP) cylinder (10) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610510775.2A CN106150530A (en) | 2016-06-30 | 2016-06-30 | Hydraulic prop prop raising tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610510775.2A CN106150530A (en) | 2016-06-30 | 2016-06-30 | Hydraulic prop prop raising tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106150530A true CN106150530A (en) | 2016-11-23 |
Family
ID=57350837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610510775.2A Pending CN106150530A (en) | 2016-06-30 | 2016-06-30 | Hydraulic prop prop raising tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106150530A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108691850A (en) * | 2018-07-03 | 2018-10-23 | 武汉海王机电工程技术有限公司 | A kind of super-pressure pressure relief system |
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| CN103790796A (en) * | 2013-11-26 | 2014-05-14 | 付世传 | Hydraulic pump station |
| CN204646275U (en) * | 2015-05-27 | 2015-09-16 | 徐州天科机械制造有限公司 | A kind of hydraulic automatism prop raising tool |
| CN204827488U (en) * | 2015-08-06 | 2015-12-02 | 徐州中矿天科矿山技术有限公司 | Automatic ratio prop raising tool of hydrodynamic force |
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2016
- 2016-06-30 CN CN201610510775.2A patent/CN106150530A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2674094Y (en) * | 2003-12-26 | 2005-01-26 | 王连军 | Quick liquid filling pole-raising and pressure-increasing for single hydraulic supporting pole |
| CN202370549U (en) * | 2011-11-18 | 2012-08-08 | 康成 | Rapid injection prop lifting boosting device for single hydraulic prop |
| CN202597010U (en) * | 2012-05-08 | 2012-12-12 | 泰安正阳机械有限公司 | Pneumatic liquid charge pump for coal mine |
| CN103790796A (en) * | 2013-11-26 | 2014-05-14 | 付世传 | Hydraulic pump station |
| CN204646275U (en) * | 2015-05-27 | 2015-09-16 | 徐州天科机械制造有限公司 | A kind of hydraulic automatism prop raising tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108691850A (en) * | 2018-07-03 | 2018-10-23 | 武汉海王机电工程技术有限公司 | A kind of super-pressure pressure relief system |
| CN108691850B (en) * | 2018-07-03 | 2019-12-24 | 武汉海王机电工程技术有限公司 | Ultrahigh pressure relief system |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161123 |
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| RJ01 | Rejection of invention patent application after publication |