CN201358795Y - High mining height outer-injected reducing double-telescopic single hydraulic prop - Google Patents
High mining height outer-injected reducing double-telescopic single hydraulic prop Download PDFInfo
- Publication number
- CN201358795Y CN201358795Y CNU2009200020391U CN200920002039U CN201358795Y CN 201358795 Y CN201358795 Y CN 201358795Y CN U2009200020391 U CNU2009200020391 U CN U2009200020391U CN 200920002039 U CN200920002039 U CN 200920002039U CN 201358795 Y CN201358795 Y CN 201358795Y
- Authority
- CN
- China
- Prior art keywords
- cylinder
- middle cylinder
- valve
- post
- mining
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Actuator (AREA)
Abstract
The utility model discloses a high mining height outer-injected reducing double-telescopic single hydraulic prop, which belongs to the field of coal mining machinery. The hydraulic prop comprises a top cover (1), an automatic exhaust valve (2), a sealing end cover (3), a mobile column casing (4), a mobile column guide sleeve (5), a middle cylinder (6), a handle body (7), a piston (8), a bottom cylinder (9), an injecting head (10), a triple duty valve (11), an extended section (12), a base (13), a reset spring (14), a guide ring (15), a Y-shaped sealing ring (16) and the like, wherein the top cover, the automatic exhaust valve and the sealing end cover are arranged on the mobile column casing, the mobile column casing is arranged inside the middle cylinder, the middle cylinder with the piston disposed under the same is arranged inside the bottom cylinder, the injecting head, the extended section and the base are sequentially welded below the bottom cylinder, and the length of a stroke is 1.5 meters. The hydraulic prop has the advantages of being low in raw material investment, light in weight, large in prop stroke, wide in adaptation range of mining heights, convenient in operation, high in use efficiency, low in cost, safe, reliable, and capable of realizing multiple functions of one prop by recombination.
Description
Technical field
The utility model relates to a kind of hydraulic prop that is used for face timbering top board under the coal mine, belongs to mining machinery field, colliery.
Background technology
At present, China's coal-mine mining machinery forward modernization maximization direction develops, and super high seam is once adopted full large hydraulic support and come out one after another and come into operation, and the supporting with it big mining height hydraulic prop demand that is used for termination temporary lining significantly increases.But the outside injection type hydraulic pillar of present big mining height DW Ф 110 cylinder diameters that use, exist stroke minor adjustment mining height changing capability poor, weight is bigger, operation inconvenience, no exhaust plant, the air that enters during fluid injection in the pillar can not effectively be discharged, and influences defectives such as pillar safe and reliable operation.Though the floated big stroke hydraulic prop of 100 cylinder diameters is arranged, and maximum height also only has 3.5m, the two unprecedented reports of extension single liquid pillar product of the reducing of maximum height more than 3.8m.
Summary of the invention
It is big that the purpose of this utility model provides a kind of stroke, and it is wide to adapt to work mining height excursion, can seal by automatic vent, in light weight, intensity height, the two flexible hydraulic props of the big mining height external poured reducing that shock resistance is good.
For achieving the above object, the utility model adopts following technical proposals:
The two extension single hydraulic props of the high external poured reducing of a kind of coal mine large-mining, form (16) by top cover (1), automatic air valve (2), end cover (3), plunger tube (4), live post fairlead (5), middle cylinder (6), handgrip body (7), piston (8), end cylinder (9), head (10), triple-use valve (11), long joining section (12), base (13), return spring (14), guide ring (15), y-type seal ring etc., it is characterized in that described top cover (1), automatic air valve (2), end cover (3) are contained in plunger tube (4) upper end; The guide ring (15) of packing under the plunger tube (4) reinstalls in the middle cylinder (6), and post fairlead (5) is connected with middle cylinder (6) with living; Middle cylinder (6) reinstalls in the end cylinder (9) behind the dress piston (8) down, is connected with end cylinder (9) with handgrip body (7); Weld head (10) under the end cylinder (9) successively, long joining section (12) and base (13); Return spring (14) is hung in the spring hook of head (10) and end cover (3), and guide ring (15), y-type seal ring (16) are contained in respectively in piston (8) and the post fairlead alive (5).Triple-use valve (11) inserts in head (10) 42 holes, if above post fairlead alive (5) and the plunger tube component such as (4) of cylinder are pulled down in will being contained in, the short spring (24) that refills standby big top cover (23) and adapt with middle cylinder stroke, promptly become the Single flexible single hydraulic prop of ￠ 110 cylinder diameters, realize the many effects of a post, by triple-use valve (11) fluid injection, unloading realizes a protective function of pillar.
Described plunger tube (4) is made with the 27siMn solid drawn tube of Ф 120 * 5 with Ф 106 * 6, end cylinder (9) with Ф 90 * 6, middle cylinder (5), handle through surperficial mid frequency induction hardening, lonneal, form the complex phase metal structure structure of tabular martensite of low-carbon (LC) and the tough combination of pearlite, give full play to the potential of material, the requirement of pillar design strength is satisfied in weight reduction.
Described plunger tube (4) adopts the interior Y-shaped ring of post fairlead alive (5) (16) the plunger seal structure of packing into middle cylinder (6), plunger outer diameter is Ф 90, and the post of living floats in the middle cylinder, under high pressure increase its anti-side loading capability and stability, middle cylinder (6) adopts with end cylinder (9) and is contained in upward Y-shaped ring (16) piston sealing structure of piston (8), end cylinder diameter is Ф 110, forms the two stretching structures of reducing, strengthens the pillar shock resistance.
Described automatic air valve, reaching spacing pad (18), valve seat (19), steel ball (20), the valve (21) of living, the gland nut parts such as (22) of packing into successively by valve body (17) forms, spacing pad, valve seat, steel ball and outside injection type hydraulic pillar triple-use valve are general, valve alive compresses and carefully applies mechanically the brass making.
Described be contained in post fairlead alive (5) inner plunger sealing ring (16) and be contained in piston (8) go up sealing ring (16), be height lip y-type seal ring, make of polyamine fat or nitrile rubber.
Description of drawings
Fig. 1 is the two extension single hydraulic prop general assembly schematic diagrames of the big mining height external poured of the utility model reducing
Fig. 2 is the single telescopic prop of the utility model equipment with big top cover
Fig. 3 is the utility model plunger tube and middle cylinder plug sealed structural representation
Fig. 4 is cylinder and an end cylinder piston sealing structure schematic diagram in the utility model
Fig. 5 is the utility model automatic air valve general illustration
Fig. 6 is the utility model post y-type seal ring alive schematic diagram
Fig. 7 is the utility model piston y-type seal ring schematic diagram
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
This hydraulic prop is made up of top cover (1), automatic air valve (2), end cover (3), plunger tube (4), the post fairlead (5) of living, middle cylinder (6), handgrip body (7), piston (8), end cylinder (9), head (10), triple-use valve (11), long joining section (12), base (13), return spring (14), guide ring (15), y-type seal ring parts such as (16) in Fig. 1.Concrete implementation step is first with end cylinder (9) and head (10), long joining section (12), and base (13) is used CO
2The gas shield welding is one, through the 60MPa bulge test, after confirming end cylinder weld seam no leakage release, will be packed in the end cylinder (9) by the middle cylinder assembly that middle cylinder (6) and piston (8) are formed, the handgrip body (7) that will be enclosed within middle cylinder (6) again is connected with steel wire with end cylinder (9); Return spring (14) is hung on the spring carrier arm of head (10); The post (4) of will living is then packed in the middle cylinder (6), and the post fairlead alive (5) that will be enclosed within on the plunger tube (4) is connected with steel wire with middle cylinder (6); Automatic air valve (2) is screwed on the end cover (3), the other end with return spring (14) hangs on the hook of end cap (3) again, embed in plunger tube (4) end face, load onto top cover (1) at last, y-type seal ring (16) guide ring (15) is respectively charged into post fairlead alive (5) and piston (7) has been gone up sealing and guide effect, go up insertion triple-use valve (11) at head (10), i.e. assembling becomes this hydraulic prop.Inject high-pressure emulsion with fluid injection gun by triple-use valve, the middle cylinder and the post of living successively rise from, and middle cylinder (6) stroke is 700mm, and plunger tube (4) stroke is 800mm, and the pillar total kilometres are 1500mm.With DWS45-150/ (90.110) pillar is example, and maximum height is 4.5m, and minimum constructive height is 3.0m, and gross weight is 96.5kg, increases 0.7m than the stroke of the flexible DW45-150/110 pillar of the list of same specification, and minimum constructive height reduces 0.7m, and gross weight alleviates nearly 18kg.And the coal seam mining height scope that a post adapts to is big, the alternative list DW35 that stretches, 38,40,42, the use of 45 5 kinds of specification pillars, in conjunction with Fig. 2, to be contained in the plunger tube (4) in the middle cylinder (6) and the post fairlead (5) of living etc. pulls down with upper-part, the short spring (24) that refills standby big top cover (23) and adapt with middle cylinder stroke, promptly become the Single flexible single hydraulic prop of ￠ 110 cylinder diameters, use in the mining height coal seam that can adapt to 2.8-3.5m again, give full play to the combination function that a post is used more, significantly reduce colliery buying deposit quantity, save the occupation of capital, save cost.
In Fig. 3, the hermetically-sealed construction between signal plunger tube (4) and the middle cylinder (6) is the plunger type sealing structure that adopts the height lip y-type seal ring (16) in the post fairlead alive (5) of packing into to form.
In Fig. 4, the hermetically-sealed construction between cylinder in the signal (6) and the end cylinder (9) is the piston type hermetically-sealed construction that adopts the height lip y-type seal ring (16) in the piston (8) of packing into to form.
It is the another characteristics of this pillar that the design of automatic air valve is used, press shown in the accompanying drawing 5, in valve body (17), the stop collar (18) of packing into successively, valve seat (19), steel ball (20), the valve (21) of living, gland nut (22), form automatic air valve, when the pillar setting prop, the outlet valve one way valve is not closed, and the air in the pillar can be discharged smoothly, when the pillar internal pressure raises, guiding valve (21) jack-up steel ball (20) makes closed check valve, and during the pillar unloading, guiding valve (21) is inhaled down, cone valve cuts out, outside air can not enter in the pillar chamber, saves pillar worry of exhaust repeatedly when using, and pillar uses more safe and reliable.
The manufacturing technical feature of major part is the welding CO of end cylinder (9), head (10), long joining section (12), base (13)
2Gas shielded arc welding technology.Concrete technological parameter is voltage 26-28V, electric current 220-230A, CO
2Oxygen pressure 0.5Mpa, flow are 5-6L/min, and velocity of rotation is 3 commentaries on classics/min, the fine and close no welding slag of the weld seam that welds out, and smooth surface is attractive in appearance, the quality height.
Plunger tube (4), middle cylinder (6), the surperficial medium frequency induction hardening process of end cylinder (9) are: select 8000Hz, 200kw intermediate frequency power supply for use; The induction hardening transformer turn ratio 15; Band water spray cooling hole inductor width 30mm; Workpiece and inductor gap 3.5mm; Hardening depth 2mm; The hard HRC 42-45 of hardened face.Adopt the method for continuous quenching, cooling to carry out.Through tabling look-up and calculating, the various technological parameters that quench are: 1, equipment power output 91.44kw; 2, the anti-resistance of inductor 4.38 Ω; 3, intermediate frequency output voltage 633V; 4, the required heat energy 61624J that adds, 5, surface of the work layer eddy current loop resistance 0.00683 Ω; 6, surface of the work layer eddy current 1517A; 7,3.9 seconds heat time heating times; 8,3.13 seconds cool times; 9, building-out capacitor capacity 246KVIR; 10, the transformer turn ratio approximates 15: 11, oil cylinder, the post total length cool time of living be 5.5 minutes/root.200 ℃ of its low tempering temperatures, 2.5 hours time is with the tempering of well formula, 30/stove of stove batch.Above-mentioned technological parameter needs suitably to adjust in real work, reaches the optimised process requirement, to satisfy the quenching technical requirement.
The characteristics of this hydraulic prop are, 1, the raw material less investment, and in light weight, easy to use, greatly subtract Light industry people labour intensity; 2, lift is big, and it is wide to adapt to the mining thickness excursion, is more suitable for and big high hydraulic supporting Frame supports the use, and this pillar is use capable of being combined also, gives full play to the effect of the many effects of a post, greatly reduces coal The buying deposit quantity of ore deposit pillar is saved the occupation of capital, saves cost; 3, adopt the reducing oil cylinder structure, And process with mid frequency induction hardening, lonneal on the surface, forms tabular low-carbon martensite and the pearlite of tough combination The complex phase metal structure, anti-top board impact property is good; 4, automatic exhaust steam valve is housed, the air in the pillar can be timely Discharge, exhaust slide valve is closed during unloading, and air can not enter in the pillar, uses more safe and reliable.
Claims (6)
1, the two extension single hydraulic props of the high external poured reducing of a kind of coal mine large-mining, form by top cover (1), automatic air valve (2), end cover (3), plunger tube (4), live post fairlead (5), middle cylinder (6), handgrip body (7), piston (8), end cylinder (9), head (10), triple-use valve (11), long joining section (12), base (13), return spring (14), guide ring (15), y-type seal ring (16) etc., it is characterized in that, described top cover (1), automatic air valve (2), end cover (3) are contained in plunger tube (4) upper end; The guide ring (15) of packing under the plunger tube (4) reinstalls in the middle cylinder (6), and post fairlead (5) is connected with middle cylinder (6) with living; Middle cylinder (6) reinstalls in the end cylinder (9) behind the dress piston (8) down, is connected with end cylinder (9) with handgrip body (7); Weld head (10) under the end cylinder (9) successively, long joining section (12) and base (13); Return spring (14) is hung in the spring hook of head (10) and end cover (3), and guide ring (15), y-type seal ring (16) are contained in respectively in piston (8) and the post fairlead alive (5).Triple-use valve inserts in head (10) Φ 42 holes, if above post fairlead alive (5) and the plunger tube component such as (4) of cylinder are pulled down in will being contained in, on middle cylinder (6), change the outfit and go up standby big top cover (23) and short return spring (24), promptly become the Single flexible single hydraulic prop of ￠ 110 cylinder diameters, realize the function of pillar by triple-use valve (11) fluid injection, unloading.
2, according to the two extension single hydraulic props of the high external poured reducing of the described coal mine large-mining of claim 1, it is characterized in that, plunger tube (4) is made with the 27siMn solid drawn tube of Φ 120 * 5 with Φ 106 * 6, end cylinder (9) with Φ 90 * 6, middle cylinder (6), handle through surperficial mid frequency induction hardening, lonneal, form tabular low-carbon martensite and the tough combination of pearlite the complex phase metal structure.
3 according to the two extension single hydraulic props of the high external poured reducing of the described coal mine large-mining of claim 1, it is characterized in that, plunger tube (4) adopts height lip Y-shaped ring (16) plunger seal structure in the post fairlead alive (5) of packing into middle cylinder (6), the post of living is suspended in the middle cylinder, the straight warp of the post of living is Φ 90, middle cylinder (6) adopts height lip Y-shaped ring (16) Y-shaped ring piston sealing structure with end cylinder (9), and end cylinder diameter is Φ 110.
4, according to the two extension single hydraulic props of the high external poured reducing of the described coal mine large-mining of claim 1, it is characterized in that, automatic air valve reaches spacing pad (18), valve seat (19), steel ball (20), the valve (21) of living, the gland nut parts such as (22) of packing into successively by valve body (17) and forms.
According to the two extension single hydraulic props of the high external poured reducing of the described coal mine large-mining of claim 1, it is characterized in that 5, the plunger seal circle that is loaded in the post sheath alive is height lip polyamine fat or acrylonitrile-butadiene rubber y-type seal ring with the sealing ring that is contained on the piston.
6, according to the two extension single hydraulic props of the high external poured reducing of the described coal mine large-mining of claim 1, it is characterized in that, the plunger tube (4) and the post fairlead parts such as (5) alive that will be contained in the middle cylinder (6) are pulled down, refill standby big top cover (23) and with the short spring (24) that middle cylinder stroke adapts, promptly become the Single flexible single hydraulic prop of ￠ 110 cylinder diameters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200020391U CN201358795Y (en) | 2009-01-04 | 2009-01-04 | High mining height outer-injected reducing double-telescopic single hydraulic prop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200020391U CN201358795Y (en) | 2009-01-04 | 2009-01-04 | High mining height outer-injected reducing double-telescopic single hydraulic prop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201358795Y true CN201358795Y (en) | 2009-12-09 |
Family
ID=41424558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200020391U Expired - Fee Related CN201358795Y (en) | 2009-01-04 | 2009-01-04 | High mining height outer-injected reducing double-telescopic single hydraulic prop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201358795Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244152A (en) * | 2013-05-15 | 2013-08-14 | 淮南郑煤机舜立机械有限公司 | Hydraulic prop |
| CN104912575A (en) * | 2014-11-28 | 2015-09-16 | 刘立起 | Single hydraulic prop repair method and compound single hydraulic prop |
-
2009
- 2009-01-04 CN CNU2009200020391U patent/CN201358795Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244152A (en) * | 2013-05-15 | 2013-08-14 | 淮南郑煤机舜立机械有限公司 | Hydraulic prop |
| CN104912575A (en) * | 2014-11-28 | 2015-09-16 | 刘立起 | Single hydraulic prop repair method and compound single hydraulic prop |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201358795Y (en) | High mining height outer-injected reducing double-telescopic single hydraulic prop | |
| CN204299842U (en) | A kind of standing valve offset suction pump | |
| CN208457539U (en) | Ventral brush hand grease is automatically injected device | |
| CN204941486U (en) | A kind of gas lift valve and the eccentric gas-lift working barrel of one | |
| CN113107574B (en) | Unpowered pulse water hammer pump generating device | |
| CN206903627U (en) | The solvable expansion plugging device of pit shaft | |
| CN201567984U (en) | Telescopic coal powder flushing spray pipe | |
| CN204942803U (en) | A kind of leakproof long lifetime oxygen gun cooling water metallic hose | |
| CN214196275U (en) | Concentric double-tube jet pump with novel sealing plug structure | |
| CN201144707Y (en) | Double telescopic suspension type hydraulic prop | |
| CN201496078U (en) | Top cover injection type single hydraulic prop | |
| CN201546740U (en) | Lifting prop for tunnel drilling rig | |
| CN217380604U (en) | High titanium alloy steel single hydraulic prop with built-in stainless steel sleeve | |
| CN208116715U (en) | A kind of die casting machine injection rod | |
| CN207862916U (en) | A kind of novel forced ramming replacement cylindrical hammer | |
| CN86209751U (en) | Plunger hydraulic pit prop | |
| CN203782164U (en) | Blast furnace cooling wall leakage repairing structure | |
| CN201358797Y (en) | Double telescoping type suspension air-permeable individual hydraulic prop | |
| CN201496077U (en) | Portable type individual hydraulic prop capable of injecting liquid at low position | |
| CN203008856U (en) | Cement buoyancy valve in gas pump drainage hole operating sleeve | |
| CN209781177U (en) | Gas injection oil-well pump convenient to draining and well-flushing | |
| CN208330207U (en) | Gas well sand control pipe | |
| CN204060623U (en) | Draw water and recharge dual-purpose valve in a kind of built-in underground | |
| CN220101503U (en) | Plunger capable of continuously running | |
| CN208073727U (en) | Oil well pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091209 Termination date: 20110104 |