CN205977254U - Novel mechanism of group is protected to third grade - Google Patents
Novel mechanism of group is protected to third grade Download PDFInfo
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- CN205977254U CN205977254U CN201620955625.8U CN201620955625U CN205977254U CN 205977254 U CN205977254 U CN 205977254U CN 201620955625 U CN201620955625 U CN 201620955625U CN 205977254 U CN205977254 U CN 205977254U
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Abstract
The utility model relates to a novel mechanism of group is protected to third grade. Current third grade is protected group's trigger and is constructed inconvenient the observation, and relief valve release liquid can't be retrieved. For this reason, this novel mechanism of group is protected to third grade includes that the group is protected to the one -level, the second grade protects the group and the group is protected to the third grade, and the three is articulated in order to respectively by one -level pneumatic cylinder, second grade pneumatic cylinder and tertiary hydraulic cylinder drive, its characterized in that: after a check valve and a spherical stop valve are established ties in turn, together concatenate and return between the liquid pipe at one -level pneumatic cylinder time liquid pipe and tertiary pneumatic cylinder, the one -level is protected group, second grade and is protected group and third grade and protect and be equipped with the fluorescent screen on group's medial surface respectively, and the release mouth of above -mentioned relief valve all returns the liquid pipeline with the owner of adapted support and communicates with each other. This novel mechanism of group is protected to third grade has design science, convenient operation, controls simple advantage, is fit for the supporting use of super great mining height hydraulic support.
Description
Technical field
This utility model is related to a kind of new three-stage side protecting mechanism.
Background technology
In the special environment of coal mine fully-mechanized mining working, due to the impact of ore deposit pressure, face roof and rib pressure are very not
Stable, supporting will result in roof fall and the appearance of side falling accident not in time, and the safety in production to down-hole causes certain hidden danger, special
It is not that problem is even more serious under the conditions of breaking roof and soft medium-thickness seam.Side protection plate of hydraulic support is the effective support of rib
Provide guarantee, in conventional wall supporting design of its support, adopt one-level face guard, with the continuous development of work surface, support more
Supporting height constantly increases, thus deriving the support pattern of two-stage face guard, but the appearance with super large height mining face, two
Level wall supporting can not meet the needs of safety in production, therefore a kind of three-stage side protecting plate connection side being applied to overlarge mining height hydraulic support
Formula is arisen at the historic moment.Still there are several lower deficiencies：
1) work surface scene coal dust is big, sight equation, is unfavorable for that operator observe；
2) relief valve unloads hydraulic fluid and cannot reclaim；
3) directly by replacing check valve phase between the epicoele pipeline of one-stage hydraulic cylinder and the epicoele pipeline of three-level hydraulic cylinder
Even it is impossible to cut off.
Utility model content
The technical problems to be solved in the utility model is the drawbacks described above how overcoming prior art, provides a kind of new three
Level side protecting mechanism.
For solving above-mentioned technical problem, this new three-stage side protecting mechanism, including one-level wall supporting, secondary protecting side and three-level shield
Side, three is sequentially hinged, and respectively by one-stage hydraulic cylinder, two-stage hydraulic cylinder and three-level Driven by Hydraulic Cylinder, one-stage hydraulic cylinder, two grades
Hydraulic cylinder and three-level hydraulic cylinder are respectively provided with one-level reversible lock, two grades of reversible locks and three-level reversible lock, the epicoele of one-stage hydraulic cylinder
It is provided with alternately check valve, one-level reversible lock, two grades of reversible locks and three-level are two-way between the epicoele pipeline of pipeline and three-level hydraulic cylinder
Lock be respectively equipped with relief valve, each relief valve is equipped with relief port it is characterised in that：Described alternately check valve and one spherical section
Only after valve series connection, together it is serially connected between the epicoele pipeline of one-stage hydraulic cylinder and the epicoele pipeline of three-level hydraulic cylinder, described one-level
Fluorescent screen is respectively equipped with wall supporting, secondary protecting side and three-stage side protecting medial surface, the relief port of above-mentioned relief valve all with adapted support
Main liquid back pipe road communicate.
It is so designed that, sets up ball check valve, can directly cut off epicoele pipeline and the three-level liquid of one-stage hydraulic cylinder if necessary
UNICOM's pipeline between the epicoele pipeline of cylinder pressure；One-level wall supporting, secondary protecting side and three-stage side protecting medial surface set up fluorescent screen, are easy to
Operator observe during mining and judge position and the action of wall supportings at different levels, the relief port of relief valve all with adapted support
Main liquid back pipe road communicates, and when relief valve release, makes the liquid that relief valve releases enter to become owner of liquid back pipe road, is easy to reclaim.
As optimization, the cavity of resorption pipeline of one-stage hydraulic cylinder is additionally provided with pressure transducer or pressure gauge.It is so designed that, be easy to
The pressure of monitoring one-level face guard.
As optimization, the epicoele pipeline of the epicoele pipeline, cavity of resorption pipeline and two-stage hydraulic cylinder of one-stage hydraulic cylinder all with one
Wall supporting linked bidirectional lock is connected.It is so designed that, one-level shield nation jack stretches out or during withdrawal action, and two Ji Hu nation jack are all the time
Keep stretching out state, maloperation column and the destruction of support other structures can be prevented effectively from.
This new three-stage side protecting mechanism has design science, easy to operate, the simple advantage of control, suitable super large mining height liquid
Pressure support equipped uses.
Brief description
Below in conjunction with the accompanying drawings this new three-stage side protecting mechanism is described further：
Fig. 1 is the working state structure schematic diagram of this new three-stage side protecting mechanism；
Fig. 2 is the hydraulic schematic diagram of the middle three-stage side protecting mechanism of this new three-stage side protecting mechanism.
In figure：1 is one-level wall supporting, 2 is secondary protecting side, 3 is three-stage side protecting, 4 is one-stage hydraulic cylinder, 5 is two-stage hydraulic cylinder,
6 is three-level hydraulic cylinder, 7 is one-level reversible lock, 8 is two grades of reversible locks, 9 is three-level reversible lock, 10 is alternately check valve, 11 is peace
Full valve, 12 be ball check valve, 13 be fluorescent screen, liquid back pipe road based on 14,15 be back timber, 16 be illuminating lamp, 17 be that wall supporting joins
Dynamic reversible lock, 18 be pressure transducer or pressure gauge.
Specific embodiment
Embodiment one：As shown in Figure 1-2, this new three-stage side protecting mechanism includes one-level wall supporting 1, secondary protecting side 2 and three
Level wall supporting 3, three is sequentially hinged, and is driven by one-stage hydraulic cylinder 4, two-stage hydraulic cylinder 5 and three-level hydraulic cylinder 6 respectively, one-level liquid
Cylinder pressure 4, two-stage hydraulic cylinder 5 and three-level hydraulic cylinder 6 are respectively provided with 7, two grades of reversible locks 8 of one-level reversible lock and three-level reversible lock 9, and one
It is provided with alternately check valve 10, one-level reversible lock 7, two between the epicoele pipeline of level hydraulic cylinder 4 and the epicoele pipeline of three-level hydraulic cylinder 6
Level reversible lock 8 and three-level reversible lock 9 be respectively equipped with relief valve 11, each relief valve 11 is equipped with relief port it is characterised in that：
After described alternately check valve 10 is connected with a ball check valve 12, together it is serially connected in epicoele pipeline and the three-level of one-stage hydraulic cylinder 4
Between the epicoele pipeline of hydraulic cylinder 6, described one-level wall supporting 1, secondary protecting side 2 and three-stage side protecting 3 medial surface are respectively equipped with fluorescence
Plate 13, the relief port of above-mentioned relief valve 11 is all communicated with the main liquid back pipe road 14 of adapted support.
The epicoele pipeline of the epicoele pipeline, cavity of resorption pipeline and two-stage hydraulic cylinder 5 of one-stage hydraulic cylinder 4 is all linked with a wall supporting
Reversible lock 17 is connected, and the cavity of resorption pipeline of one-stage hydraulic cylinder 4 is additionally provided with pressure transducer or pressure gauge 18.
The back timber 15 of adapted support is provided with illuminating lamp 16, and this illuminating lamp 16 passes through a normally-closed contact switch and power supply electricity
Source (not shown) is connected, and described one-level wall supporting or secondary protecting side or three-stage side protecting are provided with a pressure point, this pressure point and institute
State normally-closed contact switch cooperation, and can be pressed on described normally-closed contact switch, so as to cutting off the power supply supply of illuminating lamp 16.When new
When type three-stage side protecting mechanism folds into below the back timber of adapted hydraulic support, pressure point is pressed on normally-closed contact switch, normally-closed contact
Switch cutoff lighting lamp power, illuminating lamp does not work；During new three-stage side protecting mechanism is in deployed condition or launches, normally closed
Contact switch is released closure, and illuminating lamp is bright, is easy to position and action that operator observed, judged wall supportings at different levels.
Claims (3)
1. a kind of new three-stage side protecting mechanism, including one-level wall supporting, secondary protecting side and three-stage side protecting, three is sequentially hinged, and point
Not by one-stage hydraulic cylinder, two-stage hydraulic cylinder and three-level Driven by Hydraulic Cylinder, one-stage hydraulic cylinder, two-stage hydraulic cylinder and three-level hydraulic cylinder divide
Be not furnished with one-level reversible lock, two grades of reversible locks and three-level reversible lock, the epicoele pipeline of one-stage hydraulic cylinder and three-level hydraulic cylinder upper
It is provided with alternately check valve, one-level reversible lock, two grades of reversible locks and three-level reversible lock are respectively equipped with relief valve between lumen line, each
Be equipped with relief port on relief valve it is characterised in that：After described alternately check valve is connected with a ball check valve, together it is serially connected in
Between the epicoele pipeline of one-stage hydraulic cylinder and the epicoele pipeline of three-level hydraulic cylinder, described one-level wall supporting, secondary protecting side and three-level shield
It is respectively equipped with fluorescent screen, the relief port of above-mentioned relief valve is all communicated with the main liquid back pipe road of adapted support on side medial surface.
2. new three-stage side protecting mechanism according to claim 1 it is characterised in that：On the cavity of resorption pipeline of one-stage hydraulic cylinder also
It is provided with pressure transducer or pressure gauge.
3. new three-stage side protecting mechanism according to claim 1 it is characterised in that：The epicoele pipeline of one-stage hydraulic cylinder, under
Lumen line is all connected with a wall supporting linked bidirectional lock with the epicoele pipeline of two-stage hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620955625.8U CN205977254U (en) | 2016-08-26 | 2016-08-26 | Novel mechanism of group is protected to third grade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620955625.8U CN205977254U (en) | 2016-08-26 | 2016-08-26 | Novel mechanism of group is protected to third grade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205977254U true CN205977254U (en) | 2017-02-22 |
Family
ID=58036871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620955625.8U Active CN205977254U (en) | 2016-08-26 | 2016-08-26 | Novel mechanism of group is protected to third grade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205977254U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111075484B (en) * | 2020-01-10 | 2021-11-16 | 陕西银河煤业开发有限公司 | Collapse-preventing portable foundation secondary support protection equipment |
-
2016
- 2016-08-26 CN CN201620955625.8U patent/CN205977254U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111075484B (en) * | 2020-01-10 | 2021-11-16 | 陕西银河煤业开发有限公司 | Collapse-preventing portable foundation secondary support protection equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |