CN106593496B - The hollow hydraulic prop device of filled type - Google Patents
The hollow hydraulic prop device of filled type Download PDFInfo
- Publication number
- CN106593496B CN106593496B CN201611126772.5A CN201611126772A CN106593496B CN 106593496 B CN106593496 B CN 106593496B CN 201611126772 A CN201611126772 A CN 201611126772A CN 106593496 B CN106593496 B CN 106593496B
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- top cover
- blind hole
- terminal pad
- piston
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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 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
Abstract
A kind of hollow hydraulic prop device of filled type, belongs to hydraulic prop technical field.Be characterized in: it includes blind hole pedestal, terminal pad, outer cylinder body, inner cylinder body, piston, compressed spring, piston cap, top cover, top cover terminal pad, inclined wedge, ring set；Top cover is connected by top cover terminal pad with the piston for combining the hollow hydraulic cylinder formed by outer cylinder body, inner cylinder body, piston, compressed spring, piston cap, hollow hydraulic cylinder bottom end is connected by terminal pad with the upper end of blind hole pedestal, "T"-shaped top cover is applied in the hollow cavity of above-mentioned each part, filling ball is circulated into the center cavity of blind hole pedestal by the funnel in the inclined hole that is inserted on blind hole pedestal, realizes the fault-tolerant protective function of the safety supports of filling ball and "T"-shaped top cover under hydraulic constant resistance supporting and malfunction under working condition；When removing pillar, after the inclined wedge of blind hole pedestal is extracted out, filling ball is taken out, realizes hydraulic unloading.Its advantage is that structure is simple, convenient for installation and maintenance, dual supporting safety.
Description
Technical field
The invention belongs to hydraulic prop technical fields, and in particular to a kind of hollow hydraulic prop device.
Background technique
Currently, working face mostly uses hydraulic prop to be propped up both at home and abroad in coal mining, mining and constructing tunnel
Shield, has the following disadvantages: after 1. hydraulic system fault occurs in hydraulic prop, just losing enabling capabilities, safety is poor；
2. early warning hydraulic prop inner cavity frictional grip mechanism is complicated, manufacture and maintenance difficulties are big, at high cost.
Summary of the invention
It is an object of the present invention to provide the hollow hydraulic prop devices of filled type, can lack efficiently against of the existing technology
Point.
The invention is realized in this way feature is as shown in Figure 1, include blind hole pedestal 1, terminal pad 2, outer cylinder body 3, interior
Cylinder body 4, piston 5, compressed spring 6, piston cap 7, top cover 8, top cover terminal pad 9, inclined wedge 10, ring set 11, connection relationship are blind
The top of hole pedestal 1 passes through the first bolt group L1It is connect with terminal pad 2,2 top of terminal pad passes through the second bolt group L2With outer cylinder body
The top of 3 connections, outer cylinder body 3 passes through third bolt group L3It is connect with piston cap 7, the inner cylinder body 4 that bottom end is formed with outer lug boss is set with
In the center cavity of outer cylinder body 3, fit above the outer lug boss of bottom end with below the inner convex platform of 3 lower part of outer cylinder body, bottom end system
There is the piston 5 of outer lug boss to be sleeved in the cavity between inner cylinder body 4 and outer cylinder body 3,5 bottom face of piston and 3 lower part of outer cylinder body
Sap cavity between inner convex platform is provided with emulsion 14, is equipped with triple-use valve 15 on 3 lower cylinders of outer cylinder body and is connected to sap cavity, compression
Spring 6 is mounted in the cavity between piston 5 and outer cylinder body 3；5 upper end of piston passes through the 5th bolt group L5With top cover terminal pad 9
It is connected, " T " shaped top cover 8 passes through the 4th bolt group L4It is connected with top cover terminal pad 9, the annular that top cover 8 is formed with below is recessed
Slot 8.1 is matched with the annular convex platform 9.1 that top cover terminal pad 9 is formed with above, and 8 lower part cylinder of top cover is sleeved on inner cylinder body 4 and blind
In the center cavity of hole pedestal 1；The n chute 1.1 for loading filling ball 13, the bottom of blind hole pedestal 1 are formed on the barrel of blind hole pedestal 1
End is formed with the wedge hole of installation inclined wedge 10；Filled with ball 13 is filled in the center cavity of blind hole pedestal 1, pacify on the outer ring of blind hole pedestal 1
M ring set 11 is filled, n, m are positive integer；It additionally is prepared with the funnel 12 for loading filling ball 13.
Compared with the prior art, the present invention has the following advantages and effect:
1. due to using hollow hydraulic cylinder and triple-use valve, it can be achieved that constant-resistance supports.
2. the annular convex platform that the annular groove 8.1 and top cover terminal pad 9 that are formed with below due to "T"-shaped top cover 8 are formed with above
9.1 fit, and when at the beginning of rock top to press, "T"-shaped top cover can be prevented eccentric, when there is hydraulic system fault, as hydraulic cylinder is quick-fried
When cylinder or valve body break down, hollow hydraulic cylinder loses enabling capabilities, and "T"-shaped top cover and filler, which are formed, to be supported, and remains to provide
Support force, realizes the function of dual computer fault-tolerant, and safety is higher.
3. dead column in order to prevent is equipped with inclined wedge 10 using in the bottom of blind hole pedestal 1, by being lifted upwards in blind hole pedestal 1
It is external be set with multiple ring sets 11, extract the inclined wedge 10 of 1 bottom of blind hole pedestal from side out, realize unloading, it is simple and easy.
Detailed description of the invention
Fig. 1 is cross-sectional view of the present invention；
Fig. 2 is capping top view；
Fig. 3 is A-A schematic cross-sectional view in Fig. 2；
Fig. 4 is blind hole pedestal cross-sectional view；
Fig. 5 is the top view of Fig. 4；
Fig. 6 is the structural schematic diagram of funnel；
In figure:
1- blind hole pedestal, 1.1- chute, 2- terminal pad, 3- outer cylinder body, 4- inner cylinder body, 5- piston, 6- compress bullet
Spring, 7- piston cap, 8- top cover, 8.1- annular groove, 9- top cover terminal pad, 9.1- annular convex platform, 10- inclined wedge, 11-
Ring set, 12- funnel, 13- fill ball, 14- emulsion, 15- triple-use valve；L1- the first is bolted group, L2- the second bolt
Connection group, L3Third is bolted group, L4- the four is bolted group, L5- the five is bolted group.
Specific embodiment
It is elaborated with reference to the accompanying drawing by preferred embodiment to the present invention.
As shown in Figure 1, general fluid injection gun is inserted into 15 liquid injection hole of triple-use valve by the device of the invention fortune in tunnel
In, fluid injection gun is opened, pushes highly pressurised liquid into making to live in hydraulic cavities the check valve steel ball in triple-use valve open by hydraulic pump
Plug 5 increases；After working face is close in the upper end of "T"-shaped top cover 8, fluid injection gun is stopped operation, at this moment the emulsions 14 of hydraulic cavities
Pressure is pump station pressure, and "T"-shaped top cover 8 has obtained setting load；According to setting prop height, mobile ring set 11, by specific purpose tool funnel
12 are connected to chute 1.1, by fill ball 13 put into blind hole pedestal 1 center cavity in, when "T"-shaped top cover 8 be moved downwardly over it is pre-
If after stroke, that is, realizing the safeguard protection of filling support；
With coal working face propulsion and install the extension of time, working face reaction is in the hollow hydraulic prop of filled type
Device load-carrying increases, when 8 pressure of top cover hydraulic prop device rated service loads hollow more than filled type, the hollow liquid of filled type
The high-pressure emulsion 14 in the hydraulic cavities of leg unit is pressed to open the safety valve in triple-use valve 15, liquid spill, filled type are empty
It contracts under heart hydraulic prop device, 14 pressure reduction of emulsion, the hollow hydraulic prop device of filled type is born load and reduced, triple-use valve
Safety valve in 15 is closed, and emulsion 14 stops excessive, and therefore, the hollow hydraulic prop device of filled type remains specified
Service load forms fast constant-resistance type pillar；
As shown in Figure 1, when hydraulic system breaks down, it is "T"-shaped after "T"-shaped top cover 8 is moved downwardly over preset strokes
Top cover 8 is formed with filling ball 13 and is supported, if "T"-shaped top cover 8 continues to decline, fills the overload fragmentation of ball 13, filling ball 13 is loaded
The outside swelling of power, 11 constraint filling ball 13 of annulus set is excessive, realizes the safeguard protection support function of filling.
When prop drawing, by moving up ring set 11, opening inclined wedge 10 releases filling ball 13, opens the feather valve in triple-use valve 15,
Liquid in the hollow hydraulic prop device of filled type is discharged through feather valve, hydraulic cylinder unloading in compressed spring 6 and triple-use valve 15
It carries and automatically resets under valve action.
Claims (1)
1. a kind of hollow hydraulic prop device of filled type, it is characterized in that it includes blind hole pedestal (1), terminal pad (2), outer cylinder body
(3), inner cylinder body (4), piston (5), compressed spring (6), piston cap (7), top cover (8), top cover terminal pad (9), inclined wedge (10), ring
It covers (11), connection relationship is that the top of blind hole pedestal (1) passes through the first bolt group (L1) connect with terminal pad (2), terminal pad
(2) top passes through the second bolt group (L2) connect with outer cylinder body (3), the top of outer cylinder body (3) passes through third bolt group (L3) and it is living
Corking (7) connection, the inner cylinder body (4) that bottom end is formed with outer lug boss are sleeved in the center cavity of outer cylinder body (3), the outer lug boss of bottom end
It fits above with below the inner convex platform of outer cylinder body (3) lower part, the piston (5) that bottom end is formed with outer lug boss is sleeved on inner cylinder body (4)
In cavity between outer cylinder body (3), the sap cavity between piston (5) bottom face and the inner convex platform of outer cylinder body (3) lower part is provided with
Emulsion (14) is equipped with triple-use valve (15) on outer cylinder body (3) lower cylinders and is connected to sap cavity, and compressed spring (6) is mounted on work
It fills in the cavity between (5) and outer cylinder body (3)；Piston (5) upper end passes through the 5th bolt group (L5) be connected with top cover terminal pad (9)
It connects, the annular groove (8.1) that top cover (8) is formed with below and the annular convex platform (9.1) that top cover terminal pad (9) are formed with above match
It closes, top cover (8) passes through the 4th bolt group (L4) be connected with top cover terminal pad (9), top cover (8) lower part cylinder is sleeved on inner cylinder body
(4) and in the center cavity of blind hole pedestal (1)；The n chute for loading filling ball (13) is formed on the barrel of blind hole pedestal (1)
(1.1), the bottom end of blind hole pedestal (1) is formed with the wedge hole of installation inclined wedge (10)；Filled with filling in the center cavity of blind hole pedestal (1)
Ball (13) installs m ring set (11) on the outer ring of blind hole pedestal (1), and n, m are positive integer；It additionally is prepared with for filling out
Fill the funnel (12) of ball (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611126772.5A CN106593496B (en) | 2016-12-09 | 2016-12-09 | The hollow hydraulic prop device of filled type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611126772.5A CN106593496B (en) | 2016-12-09 | 2016-12-09 | The hollow hydraulic prop device of filled type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106593496A CN106593496A (en) | 2017-04-26 |
| CN106593496B true CN106593496B (en) | 2018-12-07 |
Family
ID=58597872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611126772.5A Active CN106593496B (en) | 2016-12-09 | 2016-12-09 | The hollow hydraulic prop device of filled type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106593496B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202007004101U1 (en) * | 2007-03-16 | 2007-05-24 | Bochumer Eisenhütte Heintzmann GmbH & Co. KG | Expanding support for mining, tunnel construction has clamping ring able to slide in annular piston, movable by linear piston, resting on inwardly protruding preferred breakage pin in initial position of inner tube, with peripheral groove |
| AU2008238408A1 (en) * | 2007-04-17 | 2008-10-23 | Wolfgang Voss | Hydraulic ram comprising thin-walled exterior and interior pipes |
| CN202417538U (en) * | 2012-02-14 | 2012-09-05 | 徐州天能矿山机械有限责任公司 | Large-route single body hydraulic support |
| CN103016031A (en) * | 2012-12-04 | 2013-04-03 | 付志亮 | Mining telescopic support and using method thereof |
| CN104775835A (en) * | 2015-01-26 | 2015-07-15 | 中国矿业大学 | Self-adjustment magnetorheological fluid single prop |
| CN206360715U (en) * | 2016-12-09 | 2017-07-28 | 太原科技大学 | The hollow hydraulic prop device of filled type |
-
2016
- 2016-12-09 CN CN201611126772.5A patent/CN106593496B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202007004101U1 (en) * | 2007-03-16 | 2007-05-24 | Bochumer Eisenhütte Heintzmann GmbH & Co. KG | Expanding support for mining, tunnel construction has clamping ring able to slide in annular piston, movable by linear piston, resting on inwardly protruding preferred breakage pin in initial position of inner tube, with peripheral groove |
| AU2008238408A1 (en) * | 2007-04-17 | 2008-10-23 | Wolfgang Voss | Hydraulic ram comprising thin-walled exterior and interior pipes |
| CN202417538U (en) * | 2012-02-14 | 2012-09-05 | 徐州天能矿山机械有限责任公司 | Large-route single body hydraulic support |
| CN103016031A (en) * | 2012-12-04 | 2013-04-03 | 付志亮 | Mining telescopic support and using method thereof |
| CN104775835A (en) * | 2015-01-26 | 2015-07-15 | 中国矿业大学 | Self-adjustment magnetorheological fluid single prop |
| CN206360715U (en) * | 2016-12-09 | 2017-07-28 | 太原科技大学 | The hollow hydraulic prop device of filled type |
Non-Patent Citations (1)
| Title |
|---|
| DZ28型外注式单体液压支柱结构的改进;钱国强等;《焦作工学院学报(自然科学版)》;20000831;第19卷(第4期);第291-292页 * |
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| Publication number | Publication date |
|---|---|
| CN106593496A (en) | 2017-04-26 |
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