CN209244591U - Gob side entry retaining Special individual hydraulic prop - Google Patents
Gob side entry retaining Special individual hydraulic prop Download PDFInfo
- Publication number
- CN209244591U CN209244591U CN201821817401.6U CN201821817401U CN209244591U CN 209244591 U CN209244591 U CN 209244591U CN 201821817401 U CN201821817401 U CN 201821817401U CN 209244591 U CN209244591 U CN 209244591U
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- movable post
- cylinder barrel
- side entry
- pillar
- entry retaining
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Abstract
The utility model discloses a kind of gob side entry retaining Special individual hydraulic props, and wherein by multi-functional clamp connection, multi-functional clip is fixedly connected with cylinder barrel by clamp flange for cylinder barrel, movable post, and multi-functional clip is to be flexibly connected with movable post；Mouth welds back cover pedestal, welding cylinder barrel flange suitable for reading under cylinder barrel；Movable post inner cavity top is equipped with the top cover that binds, and movable post inner cavity lower part is equipped with draining bottom cover；Top cover is fixed on movable post column cap with spring catch, dirt-proof boot connection card slot suitable for reading is equipped on top cover；Movable post exposed parts add dust proof telescopic sleeve, and dust proof telescopic sleeve goes up and down with movable post and stretched；Mouth under dirt-proof boot is equipped with above clip main body on movable post cylinder and connects card slot, clamp flange passes through bolt and cylinder barrel flanged joint.The utility model structure is simplified, intensity is higher, reliable performance, economic and environment-friendly, and in validity period, pillar not gug only replaces sealing or accessory in underground, improves the adaptability of individual prop, reduce use cost, to adapt to coal mine specific condition.
Description
Technical field
The utility model relates to underground coal mine gob-side entry retaining support devices.
Background technique
Underground coal mine gob side entry retaining is that there was dampness in the air, dust is big, pressure is big using individual prop environmental condition, and pillar uses
Feature is that carrying time long, mobile number is few.Using common mine individual hydraulic prop (hereinafter referred to as individual prop), on edge
The use of the lane Kong Liu has a disadvantage that；
1, pillar easily gets rusty
Gob side entry retaining tunnel is in return, and air humidity is big, and abutment surface easily gets rusty.The general movement in 2-3 months of pillar
Once, lifting number is few, and pillar inner cavity emulsion makes pillar inner cavity get rusty in stationary state, Yi Fasheng water-oil separating.
2, sealing element is easy to aging, fails
Gob side entry retaining pillar is generally installed at 20 meters of ahead work face, is withdrawn for 150 meters~200 meters of working face in lag.Branch
Column is withdrawn after installing 2~3 months, and strut seal, spring are chronically at high artesian condition, easily makes sealing, spring ageing failure, living
Column surface bonding dust or sludge easily make seal failure.
3, pillar air valve underfed
Gob side entry retaining there is also periodic weighting, when top plate suddenly to press when, it is slow that safety valve unloads liquid speed degree, bears pillar high
In the bearing capacity of itself limit, and occur bending and deformation.
4, prop liner is easy to fall off, damages
Gob side entry retaining pillar uses generally existing brill bottom problem in soft seam, when brill bottom is easily larger, when withdrawing pillar,
Easily pedestal is made to fall off or damage.
5, current mainstay standard is lower, and pillar waste is big
According to pertinent regulations, individual prop service life is 3 years, every primary using the necessary overhaul in a face, and after overhaul
Pillar quality technical requirements are not achieved.Service wear amount in pillar scene is big, and input cost is high, and application effect is poor, copes with existing
Pillar is improved, and individual prop service life is improved.
Utility model content
The purpose of the utility model is to provide a kind of gob side entry retaining Special individual hydraulic props, make every effort to structure simplification, intensity
Higher, reliable performance, economic and environment-friendly, in validity period, pillar not gug only replaces sealing or accessory in underground, improves list
The adaptability of pillar body reduces use cost cost, to adapt to coal mine specific condition.
The technical solution of the utility model is: a kind of gob side entry retaining Special individual hydraulic prop, including cylinder barrel, movable post, more
Function clip, it is characterized in that cylinder barrel, movable post, by multi-functional clamp connection, multi-functional clip and cylinder barrel are fixed by clamp flange
Connection, multi-functional clip are to be flexibly connected with movable post；Mouth welds back cover pedestal, welding cylinder barrel flange suitable for reading under cylinder barrel；In movable post
Chamber top is equipped with the top cover that binds, and movable post inner cavity lower part is equipped with draining bottom cover；Top cover is fixed on movable post column cap with spring catch,
Top cover is equipped with dirt-proof boot connection card slot suitable for reading；Movable post exposed parts add dust proof telescopic sleeve, and dust proof telescopic sleeve is gone up and down with movable post
And it stretches；Mouth under dirt-proof boot is equipped with above the clip main body on movable post cylinder and connects card slot, clamp flange by bolt with
Cylinder barrel flanged joint.
Preferably, dust proof telescopic sleeve is suitable for reading to connect with dirt-proof boot connection card slot suitable for reading using customization steel wire rubber telescopic
It connects, lower mouth connect card slot connection with mouth under dirt-proof boot.
Preferably, movable post and cylinder barrel such as are at the strong structures.
Preferably, cylinder barrel bottom is fixed with back cover pedestal using welding manner, and roof of mouth is solid using welding manner in movable post
It is fixed.
Preferably, movable post inner cavity is injected with neutral water.
Preferably, cylinder barrel is equipped between multi-functional clip and cylinder barrel to seal.
The utility model has the characteristics that
1, simplify reset spring built in structure, cancellation, movable post is resetted by movable post gravity, movable post inner cavity liquid weight and fitted
When artificial external force.Cancel mobile base, is changed to back cover pedestal 6.Movable post 2 is suitable for reading to be connect with top cover 8, is reduced to Single spring pin 13,
Whole column weight is compared with conventional monomer loss of weight 8KG or more.
2, intensity is improved, the strong structures such as movable post 2 and cylinder barrel 1 are all made of, high strength steel；Triple-use valve 17 uses big flow,
17 cracking pressure of safety valve must not exceed the 5% of rated pressure.
3, antirust ability is improved, carries out antirust treatment inside and outside cylinder barrel 1,1 anti-corrosion of cylinder barrel is changed to electrophoresis by former lacquer spraying technique
Preservative treatment, 1 inside and outside wall of cylinder barrel all process.Movable post appearance anticorrosion process is changed to composite plating process, movable post by Common platings
Take plastics processing in inner cavity；Multi-functional clip 3, top cover 8 are using thickening coating for protection against corrosion.
4, dust-proof effect is improved, movable post exposed parts add dust proof telescopic sleeve 4, go up and down and stretch with movable post 2, prevent dust
Enter movable post inner cavity by clip sealing, while the emulsion into movable post being required to have to pass through dustproof filter, to easily into powder
The inlet of dirt increases proofing dust and protecting.
5, seal assembly performance is improved, former rubber seal element is changed to import special type seal assembly, and overall performance improves five
Times, service life is improved to 2 years or more.
6, emulsion fluid injection is replaced using neutral water.Individual prop uses the key of neutral water fluid injection: first is that solving pillar
Sealing problem；Second is that solving the problems, such as the antirust of pillar.The utility model is sealed using the import of function admirable, can be solved in utilization
The leakage problem of property water fluid injection；In terms of antirust treatment, exocoel in cylinder barrel 1, movable post and pillar part are all carried out at anti-corrosion
Reason, it is ensured that in validity period, reach antirust technology requirement.
7, pillar overall performance is improved, the utility model is mainly for gob side entry retaining common 2.8 meters and 3.15 meters of monomers
Pillar, the resistance of failure of pillar are increased to 3.0 times, the abrasion or rust that pillar occurs in validity period by intrinsic 2.0 times
Erosion, does not influence the overall performance of pillar, it is desirable that support-column main body deformation or damage does not occur in underground, and pillar does not rise before scrapping
Well, pillar can quickly and easily replace vulnerable part and sealing in underground.It is non-maintaining to be improved from 6 months to 12 months using the time,
Pillar service life was increased to 6 years or more by 3 years.
8, easy to operate, Portable power saving, easy to process, use, maintenance.
Detailed description of the invention
Fig. 1 is the dedicated individual prop overall construction drawing of the utility model gob side entry retaining.
Fig. 2 is the dedicated individual prop dust-proof cover structure figure of the utility model gob side entry retaining.
Fig. 3 is individual prop unloading hand handle (identical as conventional monomer structure).
Fig. 4-1 is conventional monomer pillar cylinder structure figure.
Fig. 4-2 is the dedicated individual prop cylinder structure figure of the utility model gob side entry retaining.
Fig. 5-1 is conventional monomer pillar column hearty cord composition.
Fig. 5-2 is the dedicated monoblock porp hearty cord composition of the utility model gob side entry retaining.
Fig. 6-1 is conventional monomer pillar multifunction card cuff structure figure.
Fig. 6-2 is the dedicated individual prop multifunction card cuff structure figure of the utility model gob side entry retaining.
Fig. 6-3 is the multi-functional clip assembling figure of conventional monomer pillar.
Fig. 6-4 is the multi-functional clip assembling figure of the dedicated individual prop of the utility model gob side entry retaining.
Fig. 7 is conventional monomer corbeling figure.
Drawing reference numeral: cylinder barrel 1, movable post 2, multi-functional clip 3, dust proof telescopic sleeve 4, unloading hand handle 5, back cover pedestal 6, cylinder barrel
Flange 7, top cover 8, the top cover 9 that binds, draining bottom cover 10, cylinder barrel sealing 11, dirt-proof boot connection card slot 12 suitable for reading, spring catch 13, card
Bind round mouth connection card slot 15, bolt 16, triple-use valve 17, dustband 18, guide collar 19, movable post sealing 20 under flange 14, dirt-proof boot.
Specific embodiment
One, gob side entry retaining Special individual hydraulic prop concrete composition
As shown in Figure 1, gob side entry retaining Special individual hydraulic prop is by cylinder barrel 1, movable post 2,3 three parts group of multi-functional clip
At (see Fig. 1).Additional attachment has movable post dust proof telescopic sleeve 4 (see Fig. 2) and individual prop unloading hand handle 5 (see Fig. 3).
As shown in Figure 1, cylinder barrel 1, movable post 2 are connected by multi-functional clip 3, multi-functional clip 3 is fixed connect with cylinder barrel 1
It connects, is to be flexibly connected with movable post 2, cylinder barrel sealing 11 is equipped between multi-functional clip 3 and cylinder barrel 1；The lower mouth of cylinder barrel 1 welds back cover bottom
Seat 6, welding cylinder barrel flange 7 suitable for reading；Movable post inner cavity top is equipped with the top cover 9 that binds, and movable post inner cavity lower part is equipped with draining bottom cover 10；With
Top cover 8 is fixed on movable post column cap by spring catch 13, and dirt-proof boot connection card slot 12 suitable for reading is equipped on top cover 8；The exposed portion of movable post
Divide and add dust proof telescopic sleeve 4, goes up and down and stretch with movable post, prevent dust from entering movable post inner cavity；Multi-functional clip 3 and movable post cylinder
Contact surface is equipped with dustband 18, guide collar 19 and movable post sealing 20, is equipped under dirt-proof boot above clip 3 on movable post cylinder
Mouth connection card slot 15, clamp flange 14 are connect by bolt 16 with cylinder barrel flange 7.
As shown in Fig. 2, movable post dust proof telescopic sleeve 4 is using customization steel wire rubber telescopic, suitable for reading and dirt-proof boot company suitable for reading
The connection of card slot 12 is connect, lower mouth connect the connection of card slot 15 with mouth under dirt-proof boot, prevents dust from entering movable post inner cavity.
1 bottom of cylinder barrel is fixed with back cover pedestal 6 using welding manner, and roof of mouth 8 is fixed using welding manner in movable post.
Two, the utility model gob side entry retaining Special individual hydraulic prop and conventional monomer pillar design difference
1, cylinder barrel variation place
As shown in Fig. 7, Fig. 4-1, Fig. 4-2,1 bottom of cylinder barrel and back cover pedestal 6 use welding manner, and cylinder barrel 1 is suitable for reading and blocks
3 use 7 connection types of cylinder barrel flange of hoop are fixed, and original mouth of connecting trough is eliminated, and the strong structures such as cylinder barrel main body use improve
The integral strength of cylinder barrel.
2, movable post variation place
As shown in Fig. 7, Fig. 5-1, Fig. 5-2, roof of mouth 8 is fixed using welding manner in movable post, eliminates original connection
Notch.Movable post inner cavity top is equipped with the top cover 9 that binds, and movable post inner cavity lower part increases draining bottom cover 10, it is ensured that under movable post when contracting, movable post
The not outer overflow of inner cavity liquid, reset force when increasing contracting under movable post；Draining bottom cover is equipped with small linked hole simultaneously, guarantees branch
When column pressure-bearing, movable post inner cavity liquid is consistent with exocoel liquid pressure-bearing.
3, multi-functional clip (original name handle body) variation place
As shown in Fig. 7, Fig. 6-1, Fig. 6-2, Fig. 6-3, Fig. 6-4, multi-functional clip 3 increases dirt-proof boot compared with former clip
Lower mouth connection card slot 15 and clamp flange 14.Mouth connection card slot 15 is connected with mouth under dust proof telescopic sleeve under dirt-proof boot, prevents dust
Into movable post inner cavity；Clamp flange 14 is connect by bolt 16 with cylinder barrel flange 7, is connected instead of raw steel silk.
4, leg restoration device variation place
Leg restoration leans on movable post self-weight reset.As shown in Figure 1, Figure 7 shows, gob side entry retaining pillar is different from Ileal neobladder pillar, edge
The lane Kong Liu pillar is withdrawn in the stable region of roof movement, and Tunnel Pressure is small, the amount of crushing is smaller, is wanted to contracting speed under movable post
It asks not high, to long movable post monomer, self-weight reset can be leaned on completely.Scene is generally 2.8 meters and 3.15 meters of two kinds of rule using pillar
Lattice, movable post weight is larger, can lean on movable post self-weight reset.Through testing, movable post is tested when horizontal positioned using chest expander, is drawn
When 10~15kg of power, movable post can draw shifting to reset；When movable post is disposed vertically, 2.8 meters of movable post self weight 26kg or more with upper supporting column,
Additional movable post inner cavity liquid weight 7kg can guarantee that pillar automatically resets completely.Currently, without built-in spring by self-weight reset
There are many hydraulic device, such as internal-injection type individual prop, hydraulic anchor rod machine supporting leg, discharging automobile hydraulic device.
5, increase dust proof telescopic sleeve 4
As shown in Fig. 7, Fig. 2, increase dust proof telescopic sleeve 4, first is that dust-proof, protective jacket stops dust, protects strut seal part
It is injury-free, meanwhile, movable post surface is smeared and is lubricated, in the case where no dust pollution movable post surface, guarantees the low of movable post
Resistance is flexible；Second is that protection movable post surface is injury-free；Third is that improving operator to the protective awareness of pillar, as long as protective jacket
It does not destroy, pillar does not have big damage.
Three, specifically used method
The dedicated individual prop of gob side entry retaining is used in underground including preparation, setting prop, carrying, prop drawing, carrying five processes.
Preparation is the key that guarantee one step of pillar performance, and the requires of the utility model pillar is preceding first to live before factory
Column inner cavity and the emptying of inner cavity of cylinder gas, liquid full, and triple-use valve 17 is installed as required, after bulge test is qualified, then go out
Factory.It is required that pillar fills working media in advance, pillar is filled liquid in advance and is had the following advantages: first is that preventing pillar from using in underground
When, gas row is not clean, and setting load deficiency or false unloading occurs in pillar carrying；Second is that after pillar internal vent gas, in cylinder body
Chamber is not contacted with air, prevents inner cavity from getting rusty.Pillar fills working media in advance and increases hauled weight, also transports and pacifies to pillar
Higher standard is proposed entirely, it is desirable that the packaging of the guaranteed pillar performance of manufacturer must be carried using unit by requirement.
After pillar is transported to operating location, supporting is erected, fluid injection is then robbed into insertion monomer liquid injection port to pillar fluid injection,
When pillar rises contact top plate, and reaches predetermined setting load, stops fluid injection, extract fluid injection gun, pillar is in running order.
As roadway deformation and roof pressure change, make when pillar is loaded beyond rated pressure, pillar air valve unloads liquid, living
It contracts under column, makes pillar carrying in new equilibrium state.
As face of adopting promotes, when pillar arrives withdrawing position, liquid valve is unloaded with the unloading unlatching of hand handle 5, movable post bounces back, and then removes
Pillar is transported to new place to use.
When reusing pillar, operation is repeated by operating instruction.
Four, manufacture, use, repair the product points for attention
Pillar processing must reach technical requirements standard；Pillar use must forbid barbarous dress in strict accordance with operating instruction
It unloads, forbids to stretch the meaning, forbid lateral load, when roadway floor is soft, it is necessary to match the column being adapted with floor pressure ratio Air holder
Shoes prevent column drill bottom excessive, damage in prop drawing, and pillar leakage unloading is found in monomer use process, should be replaced in time close
Envelope.Pillar maintenance must be operated by the professional Jing Guo strict training.Pillar working media must be neutral water, such as water quality acid
Basicity is larger, should handle water quality.Underground replacement sealing must be in the environment of not dust.
Claims (6)
1. a kind of gob side entry retaining Special individual hydraulic prop, including cylinder barrel (1), movable post (2), multi-functional clip (3), it is characterized in that
Cylinder barrel (1), movable post (2) are connected by multi-functional clip (3), and multi-functional clip (3) and cylinder barrel (1) are solid by clamp flange (14)
Fixed connection, multi-functional clip (3) are to be flexibly connected with movable post (2)；Mouth welding back cover pedestal (6), welding cylinder suitable for reading under cylinder barrel (1)
Drum flange (7)；Movable post inner cavity top, which is equipped with, binds top cover (9), and movable post inner cavity lower part is equipped with draining bottom cover (10)；Use spring catch
(13) top cover (8) is fixed on movable post column cap, dirt-proof boot connection card slot (12) suitable for reading is equipped on top cover (8)；Movable post is exposed
Part adds dust proof telescopic sleeve (4), and dust proof telescopic sleeve (4) goes up and down with movable post (2) and stretched；Clip master is abutted on movable post cylinder
Mouth connection card slot (15) under dirt-proof boot is equipped with above body, clamp flange (14) is connect by bolt (16) with cylinder barrel flange (7).
2. gob side entry retaining Special individual hydraulic prop as described in claim 1, characterized in that dust proof telescopic sleeve (4) is using fixed
Steel wire rubber telescopic processed, suitable for reading to connect with dirt-proof boot connection card slot (12) suitable for reading, lower mouth connect card slot with mouth under dirt-proof boot
(15) it connects.
3. gob side entry retaining Special individual hydraulic prop as described in claim 1, it is characterized in that movable post (2) is with cylinder barrel (1)
Etc. strong structures.
4. gob side entry retaining Special individual hydraulic prop as described in claim 1, characterized in that cylinder barrel (1) bottom and back cover bottom
Seat (6) is fixed using welding manner, and roof of mouth (8) is fixed using welding manner in movable post.
5. gob side entry retaining Special individual hydraulic prop as described in claim 1, characterized in that movable post inner cavity is injected with neutrality
Water.
6. gob side entry retaining Special individual hydraulic prop as described in claim 1, characterized in that multi-functional clip (3) and cylinder barrel
(1) cylinder barrel sealing (11) is equipped between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821817401.6U CN209244591U (en) | 2018-11-05 | 2018-11-05 | Gob side entry retaining Special individual hydraulic prop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821817401.6U CN209244591U (en) | 2018-11-05 | 2018-11-05 | Gob side entry retaining Special individual hydraulic prop |
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| Publication Number | Publication Date |
|---|---|
| CN209244591U true CN209244591U (en) | 2019-08-13 |
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ID=67527163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821817401.6U Active CN209244591U (en) | 2018-11-05 | 2018-11-05 | Gob side entry retaining Special individual hydraulic prop |
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| CN (1) | CN209244591U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268044A (en) * | 2018-11-05 | 2019-01-25 | 陕西陕煤韩城矿业有限公司 | Gob side entry retaining Special individual hydraulic prop |
| CN110700866A (en) * | 2019-11-07 | 2020-01-17 | 徐州众信矿业科技有限公司 | Mining hydraulic prop |
-
2018
- 2018-11-05 CN CN201821817401.6U patent/CN209244591U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268044A (en) * | 2018-11-05 | 2019-01-25 | 陕西陕煤韩城矿业有限公司 | Gob side entry retaining Special individual hydraulic prop |
| CN110700866A (en) * | 2019-11-07 | 2020-01-17 | 徐州众信矿业科技有限公司 | Mining hydraulic prop |
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