CN108071412A - A kind of hydraulic support for measuring roof and floor relative movement distance - Google Patents
A kind of hydraulic support for measuring roof and floor relative movement distance Download PDFInfo
- Publication number
- CN108071412A CN108071412A CN201711326301.3A CN201711326301A CN108071412A CN 108071412 A CN108071412 A CN 108071412A CN 201711326301 A CN201711326301 A CN 201711326301A CN 108071412 A CN108071412 A CN 108071412A
- Authority
- CN
- China
- Prior art keywords
- column
- survey
- top beam
- pedestal
- relative movement
- 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
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000005259 measurement Methods 0.000 claims abstract description 12
- 239000007787 solid Substances 0.000 claims 1
- 239000011435 rock Substances 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
- E21F17/185—Rock-pressure control devices with or without alarm devices; Alarm devices in case of roof subsidence
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a kind of hydraulic supports for measuring roof and floor relative movement distance, including pedestal, column, top beam, caving shield, connecting rod, column at least side by side two, its lower end is fixed on pedestal, upper end is fixed on top beam with supporting top beam, the top beam rear end is hinged with the caving shield upper end, caving shield lower end and the upper end of the connecting rod are hinged, and the lower end of connecting rod is hinged with the pedestal；It is additionally provided with measurement column, the measurement column includes first and surveys column and the second survey column, second surveys column as cylindrical shape, first survey column is nested in the second survey column, its lower end is connected with the spring being arranged in the second survey column, the upper end is stretched out in the second survey column and is connected with the top beam, there is scale on the first survey column, the lower end of the second survey column is fixed on the pedestal；The present invention can observe top plate and bottom plate rate of travel while supporting roof, simple and practical in structure.
Description
Technical field
The present invention relates to a kind of hydraulic supports, and in particular to a kind of hydraulic support for measuring roof and floor relative movement distance,
Belong to mining machinery field.
Background technology
Hydraulic support is widely used in underground coal mine face timbering, and in working face working space formed below.Due to
Working face in the pit top plate and floor strata pressure are larger, and top plate is more broken, therefore top plate and bottom plate are unstable, easily occur
Security incident.And under mine, top plate and bottom plate constantly relatively move under the action of rock pressure, which is
An important factor for whether top plate and bottom plate are stablized judged.
The content of the invention
The object of the present invention is to provide a kind of hydraulic supports for measuring roof and floor relative movement distance, this hydraulic support can be with
Top plate and bottom plate rate of travel are observed while supporting roof, it is simple and practical in structure.
To achieve the above object, the hydraulic support for a kind of measurement roof and floor relative movement distance that the present invention uses, including
Pedestal, column, top beam, caving shield, connecting rod, column at least side by side two, its lower end is fixed on pedestal, upper end is fixed on
It is hinged on top beam with supporting top beam, the top beam rear end with the caving shield upper end, caving shield lower end and the upper end of the connecting rod
Hinged, the lower end of connecting rod is hinged with the pedestal；Measurement column is additionally provided with, which includes first and survey column and the second survey
Column, second surveys column as cylindrical shape, and the first survey column is nested in the second survey column, its lower end connects with the spring being arranged in the second survey column
It connects, be connected in the upper end stretching the second survey column and with the top beam, have scale on the first survey column, described second surveys the lower end of column
It is fixed on the pedestal.
Further, the cylinder inner wall for column being surveyed described second is equipped with trigger alarming switch and trigger alarming switch
Connected has alarm lamp, which is arranged on the described first lower section for surveying column, and it is vertical that the alarm lamp is arranged on the measurement
The outer surface of column.
Further, the scale is millimeter scale.
The present invention makes top beam roof supporting in use, rise column, and has certain setting load, and the first survey column exists at this time
Rise under the action of spring power, write down the first survey column dew after rising and stretch out the scale outside the second survey column, periodically see later
Survey scale variation；When rock pressure is excessive, causes top plate and bottom plate adjacent to each other, the distance of top beam and pedestal also contracts therewith
Small, first, which surveys column retraction second, surveys in column, and the scale that the first survey column dew is stretched out outside the second survey column changes, it is possible thereby to root
Top plate and bottom plate relative movement distance are determined according to scale changing value.Meanwhile measurement column can also play top plate certain support
Power to a certain extent, increases the setting load of this hydraulic support.
Description of the drawings
Fig. 1 is the schematic diagram of the present invention.
Wherein：1. column, 62. are surveyed in top beam, 2. caving shields, 3. connecting rods, 4. pedestals, 5. columns, 6. measurement columns, 61. first
Column, 631. alarm switches, 64. springs are surveyed in scale, 63. second.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of hydraulic support for measuring roof and floor relative movement distance, it is characterised in that：Including pedestal 4,
Column 5, top beam 1, caving shield 2, connecting rod 3, column 5 at least side by side two, its lower end is fixed on pedestal 4, upper end is fixed
In being hinged on top beam 1 with supporting top beam 1,1 rear end of top beam with 2 upper end of caving shield, 2 lower end of caving shield and the upper end of connecting rod 3 are hinged,
The lower end of connecting rod 3 is hinged with pedestal 4；Measurement column 6 is additionally provided with, which includes first and surveys the survey column 63 of column 61 and second,
Second surveys column 63 as cylindrical shape, and the first survey column 61 is nested in the second survey column 63, its lower end is with being arranged in the second survey column 63
Spring 64 connects, the upper end is stretched out in the second survey column 63 and is connected with top beam 1, has scale 62 on the first survey column 61, second surveys
The lower end of column 63 is fixed on pedestal 4.
The present invention makes 1 roof supporting of top beam, and with certain setting load, first surveys column at this time in use, rise column 5
61 rise under the action of 64 elastic force of spring, write down the first survey dew of column 61 after rising and stretch out the scale outside the second survey column 63
62, the later time sight scale 62 changes；When rock pressure is excessive, causes top plate and bottom plate adjacent to each other, top beam 1 and bottom
The distance of seat 4 also reduces therewith, and first, which surveys 61 retraction second of column, surveys in column 63, and the first survey dew of column 61, which is stretched out, to be surveyed second outside column 63
Scale 62 change, it is possible thereby to determine top plate and bottom plate relative movement distance according to 62 changing value of scale.Meanwhile it surveys
Amount column 6 can also play top plate certain support force, to a certain extent, increase the setting load of this hydraulic support.
Further, second survey column 63 cylinder inner wall be equipped with trigger alarming switch 631, be attached thereto have alarm
Lamp, the alarm switch 631 are arranged on the lower section of the first survey column 61, and alarm lamp is arranged on the outer surface of measurement column 6；In this way, work as
When top plate and excessive bottom plate relative movement distance, after first surveys 61 retraction second of column survey column 63 to a certain degree, first surveys under column 61
End triggering alarm switch 631, alarm lamp lights, and warns staff.
In order to improve the precision of measurement, further, the scale 62 is millimeter scale.
Claims (3)
1. a kind of hydraulic support for measuring roof and floor relative movement distance, it is characterised in that：Including pedestal (4), column (5), top
Beam (1), caving shield (2), connecting rod (3), column (5) at least side by side two, its lower end are fixed on pedestal (4), upper end is solid
Due to supporting top beam (1), top beam (1) rear end and the caving shield (2) upper end are hinged, under caving shield (2) on top beam (1)
The upper end with the connecting rod (3) is held to be hinged, the lower end of connecting rod (3) and the pedestal (4) are hinged；Measurement column (6) is additionally provided with, it should
It measures column (6) and surveys column (61) and the second survey column (63) including first, the second survey column (63) is cylindrical shape, and the first survey column (61) is embedding
It is placed in the second survey column (63), its lower end is connected with the spring (64) being arranged in the second survey column (63), the upper end stretches out second
It surveys in column (63) and is connected with the top beam (1), have scale (62) on the first survey column (61), described second surveys under column (63)
End is fixed on the pedestal (4).
2. a kind of hydraulic support for measuring roof and floor relative movement distance according to claim 1, it is characterised in that：Institute
The cylinder inner wall for stating the second survey column (63) is equipped with trigger alarming switch (631), and what is be connected with trigger alarming switch has alarm
Lamp, the alarm switch (631) are arranged on the described first lower section for surveying column (61), and the alarm lamp is arranged on the measurement column
(6) outer surface.
3. a kind of hydraulic support for measuring roof and floor relative movement distance according to claim 1 or 2, it is characterised in that：
The scale (62) is millimeter scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711326301.3A CN108071412A (en) | 2017-12-13 | 2017-12-13 | A kind of hydraulic support for measuring roof and floor relative movement distance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711326301.3A CN108071412A (en) | 2017-12-13 | 2017-12-13 | A kind of hydraulic support for measuring roof and floor relative movement distance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108071412A true CN108071412A (en) | 2018-05-25 |
Family
ID=62158404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711326301.3A Pending CN108071412A (en) | 2017-12-13 | 2017-12-13 | A kind of hydraulic support for measuring roof and floor relative movement distance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108071412A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109141523A (en) * | 2018-08-14 | 2019-01-04 | 中铁十二局集团有限公司 | The monitoring device of side mode deformation and the monitoring method of side mode deformation |
-
2017
- 2017-12-13 CN CN201711326301.3A patent/CN108071412A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109141523A (en) * | 2018-08-14 | 2019-01-04 | 中铁十二局集团有限公司 | The monitoring device of side mode deformation and the monitoring method of side mode deformation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180525 |
|
| WD01 | Invention patent application deemed withdrawn after publication |