CN105571564B - A kind of elevation carrection sensor and the hydraulic support using elevation carrection sensor - Google Patents
A kind of elevation carrection sensor and the hydraulic support using elevation carrection sensor Download PDFInfo
- Publication number
- CN105571564B CN105571564B CN201510915641.4A CN201510915641A CN105571564B CN 105571564 B CN105571564 B CN 105571564B CN 201510915641 A CN201510915641 A CN 201510915641A CN 105571564 B CN105571564 B CN 105571564B
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- China
- Prior art keywords
- valve seat
- top end
- sensor
- end component
- bottom valve
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
- G01C5/04—Hydrostatic levelling, i.e. by flexibly interconnected liquid containers at separated points
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
Abstract
A kind of elevation carrection sensor including pressure sensor, liquid line, further includes bottom valve seat and top end component, and the bottom valve seat includes fluid infusion check valve, and the pressure sensor is mounted in the bottom valve seat；The bottom valve seat is connected by the liquid line with the top end component, and the top end component has the function of restriction and the top end component is configured with the structure for weakening liquid evaporation.The bottom valve seat construction of the present invention includes 2 check valves, convenient for fluid infusion and replaces pressure sensor, flexible and convenient to use, avoids the influence that fluid loss generates measurement with evaporation, makes it closer in engineer application；3 kinds of different forms may be selected in top end component, suitable for different workplaces, can effectively reduce the height error that liquid evaporation is brought.
Description
Technical field
The present invention relates to a kind of elevation carrection sensors more particularly to a kind of for measuring the underground equipments such as hydraulic support
The measurement sensor of height and the hydraulic support with above-mentioned measurement sensor.
Background technology
With the continuous improvement of underground coal mine fully-mechanized mining working automatization level, mining height data it is real-time, accurate measurement and
It reads more and more important.As the important parameter of working face control, it is combined with pressure data, can reflects roof and floor in time
Mechanics has directive function to safety in production；In addition, altitude information is monitored for coal production process, according to coal cutting
Depth and height, calculate mine coal output, have positive realistic meaning automatically.
The method of existing support height measurement has：Inclination angle is installed additional on the components such as set cap, caving shield, connecting rod, pedestal
Support height is calculated by trigonometric function in sensor, and this method precision is relatively low, operand is big, system complex, installation are safeguarded
It is relatively difficult；In addition have and the sensors such as laser or ultrasonic wave be installed in set cap, measurement top beam to the light between pedestal or
Sound wave reflective distance, this method to reflecting surface, it is more demanding to live light, coal dust, reliability is poor.So at present, stent
The measurement of height is also mainly completed by the scale bar suspended in midair on manually observation force piece, due to working face coal dust, sky
Between wait influence, had some impact on to timberer's work quality.
In the prior art, CN103017705A discloses a kind of altitude measurement system of hydraulic support, is passed including pressure
Sensor, control module, power module and hydraulic hose, hydraulic hose one end airtight connection pressure sensor, another end opening, liquid
Liquid is loaded in pressure hose, control module connection pressure sensor gathers pressure data by pressure sensor and is converted into branch
Frame height；CN104364468A discloses a kind of altitude measurement system of hydraulic support, including hose level meter, the end of hose
Pressure sensor is disposed with, the liquid-column height connection detected by pressure sensor converses the absolute height of protection supporting frame
Degree；CN101881609A disclose it is a kind of can monitoring vertical displacement device, can be used to monitor the operating range of hydraulic support,
Including check valve, connecting tube, piezoelectric strain gauge, data processor and process computer, when between check valve and piezoelectric strain gauge
Range conversion when changing, perceived by piezoelectric strain gauge and exported, so as to draw displacement distance and and then obtain two movements
Height between object.
But above-mentioned documents are not all disclosed with the structure of liquid evaporation or spilling in hose is prevented, also without open
With special fluid infusion component.
The content of the invention
To solve the above problems, the present invention proposes a kind of elevation carrection sensor, including pressure sensor, liquid line,
Bottom valve seat and top end component, the bottom valve seat include fluid infusion check valve, and the pressure sensor is mounted on the bottom valve
In seat；The bottom valve seat is connected by the liquid line with the top end component, and the top end component has restriction simultaneously
And the top end component is configured with the structure for weakening liquid evaporation function.
It is preferred that the bottom valve seat further includes sensor check valve, the pressure sensor passes through the sensor check valve
In the bottom valve seat.
It is preferred that the top end component is liquid storage cylinder, the restriction is arranged on the side wall of the liquid storage cylinder.
It is preferred that the top end component for etc. horizontal spiral tube.
It is preferred that the top end component is constant amplitude helix tube.
A kind of hydraulic support, with above-mentioned elevation carrection sensor, the bottom valve seat is fixed at the liquid
On the pedestal for pressing stent.
The bottom valve seat construction of the present invention includes 2 check valves, convenient for fluid infusion and replaces pressure sensor, using flexible side
Just, the influence of fluid loss and evaporation to measurement generation is avoided, makes it closer in engineer application；Top end component may be selected not
3 kinds of same forms, suitable for different workplaces, can effectively reduce the height error that liquid evaporation is brought.
Description of the drawings
Attached drawing 1 is the structure diagram for the hydraulic support for being equipped with elevation carrection sensor of the present invention；
Attached drawing 2 is the structure diagram of the bottom valve seat of elevation carrection sensor in attached drawing 1；
Attached drawing 3-5 is the structure diagram of various forms of top end components in elevation carrection sensor.
Reference numeral is as follows：
1- bottoms valve seat；2- top end components；3- liquid lines；10- fluid infusion check valves；11- sensor check valves；20- is saved
Head piece；21- liquid storage cylinders.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Referring to attached drawing 1, elevation carrection sensor is mounted on hydraulic support, and height is carried out using the method for hydrostatic pressure
Measurement.
Elevation carrection sensor includes pressure sensor, bottom valve seat, top end component, four part of liquid line substantially.Pressure
Force snesor is installed on the valve seat of bottom, and hydraulic support foundation is fixed on by bottom valve seat；Bottom valve seat leads to top end component
Liquid line is crossed to connect, it is hydraulically full in liquid line；Top end component is fluid storage device, and is provided with restriction, with extraneous
Atmosphere forms the fluid loop of an entirety, passes through pressure sensor measuring loop pressure.
Referring to attached drawing 2, bottom valve seat part includes fluid infusion check valve, can also include the components such as sensor check valve；When
When liquid evaporation or accident are overflowed in liquid line, fluid infusion is carried out into pipeline by fluid infusion check valve, treats that top end component throttles
Mouth stops when overflowing, it is ensured that without air in pipeline；Can pressure sensor be installed by sensor check valve, when pressure sensor damages
Bad when, can more emat sensor at any time, and liquid will not overflow in pipeline.
Top end component part is fluid storage device, and main function is influence of the decrease liquid evaporation to elevation carrection.It can
With there are three types of ways of realization：It is liquid storage cylinder form referring to attached drawing 3, top is the cavity body of a constant volume, and inside is full of liquid
Body, side wall open restriction connection air, slow down the direct evaporation of liquid；Referring to attached drawing 4, for etc. horizontal spiral tube shape
Formula, under the form, liquid line carries out arrangement of spiraling in the form of similar mosquito-repellent incense in same level, in the normal of liquid evaporation
In the case of, liquid level is basically unchanged；It is constant amplitude helix tube form referring to attached drawing 5, under the form, liquid line is with similar
Form of springs screw arrangement, opposed vertical pipeline in similary evaporation capacity, are had smaller height change, are reduced with this
Height error.
In measurement process, according to formula P=ρ * g*H, in liquid the pressure P of certain point with this apart from the vertical of liquid level
Height H is directly proportional, then the height of pressure, that is, its measurable liquid level of liquid level under liquid is measured using pressure sensor.Into one
Step, is fixed on bracket base position by lower liquid level, upper liquid level is fixed on set cap position, then liquid level can characterize
Support height.
The output of sensor is voltage (or electric current) signal of standard, can be directly accessed the detection of stent electric-control system analog quantity
Interface carries out the calculating and display of height, computational methods：
For example, transducer range is 0~70Kpa, output signal is 0.5~4.5VDC, then 70kPa respective heights are substantially
7 meter water columns, according to pressure formula,
Herein, ρ takes 1000kg/m3, g takes 9.8m/s2；Pressure sensor output does analog-to-digital conversion through CPU, obtains voltage value
V, unit mv, then
H units are millimeter, after simplifying, following formula can be used and calculate：
Wherein, V units are mv, and H units are mm.
Height H is measured with the sum of sensor setting height(from bottom) (including distance top depth of beam h1 and the height h2 apart from pedestal)
As hydraulic support actual height value
The above is only the preferable specific embodiment of patent of the present invention, but the protection domain of patent of the present invention is not
This is confined to, any one skilled in the art can readily occur in the technical scope of patent diselosesll of the present invention
Change or replacement, should all cover within the protection domain of patent of the present invention.
Claims (5)
1. a kind of elevation carrection sensor, including pressure sensor, liquid line, it is characterised in that：It is described including bottom valve seat
Pressure sensor is mounted in the bottom valve seat；
Including top end component, the top end component is the liquid storage cylinder with restriction；
The top end component is configured with the structure for weakening liquid evaporation function；
The bottom valve seat includes fluid infusion check valve, unidirectional by fluid infusion when liquid evaporation in liquid line or unexpected spilling
Valve carries out fluid infusion into pipeline；
The bottom valve seat further includes sensor check valve, and the pressure sensor is mounted on institute by the sensor check valve
It states in the valve seat of bottom；
Bottom valve seat is connected with top end component by liquid line, hydraulically full in liquid line.
2. elevation carrection sensor as described in claim 1, it is characterised in that：The restriction is arranged on the liquid storage cylinder
Side wall.
3. elevation carrection sensor as claimed in claim 1 or 2, it is characterised in that：The top end component for etc. levels spiral
Pipe.
4. elevation carrection sensor as claimed in claim 1 or 2, it is characterised in that：The top end component is constant amplitude helix tube.
5. a kind of hydraulic support, it is characterised in that：It has the elevation carrection sensor as described in claim 1-4 is any, institute
Bottom valve seat is stated to be fixed on the pedestal of the hydraulic support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510915641.4A CN105571564B (en) | 2015-12-11 | 2015-12-11 | A kind of elevation carrection sensor and the hydraulic support using elevation carrection sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510915641.4A CN105571564B (en) | 2015-12-11 | 2015-12-11 | A kind of elevation carrection sensor and the hydraulic support using elevation carrection sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105571564A CN105571564A (en) | 2016-05-11 |
| CN105571564B true CN105571564B (en) | 2018-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510915641.4A Active CN105571564B (en) | 2015-12-11 | 2015-12-11 | A kind of elevation carrection sensor and the hydraulic support using elevation carrection sensor |
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| CN (1) | CN105571564B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108491360B (en) * | 2018-02-26 | 2022-04-01 | 北京天玛智控科技股份有限公司 | Coal mining amount calculation method |
| CN109737905B (en) * | 2018-12-25 | 2021-04-13 | 武汉船舶通信研究所（中国船舶重工集团公司第七二二研究所） | Safety valve core displacement monitoring system of large pressure container |
| CN114321674A (en) * | 2021-12-30 | 2022-04-12 | 中国人民解放军32212部队 | General laser sensor support of armoured vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101463806A (en) * | 2009-01-07 | 2009-06-24 | 林智勇 | Energy-saving power supply device |
| CN103017705A (en) * | 2012-09-28 | 2013-04-03 | 山西科达自控工程技术有限公司 | Pressure type hydraulic support height detection system and method |
| CN103376179A (en) * | 2012-04-12 | 2013-10-30 | 浙江三花股份有限公司 | Pressure sensor |
| CN104006262A (en) * | 2013-02-27 | 2014-08-27 | 中国石油集团长城钻探工程有限公司 | Head joint device for pipe body opening end |
| CN104364468A (en) * | 2012-04-02 | 2015-02-18 | 拉格股份公司 | Face equipment comprising hose levels placed on the shield support frames of said face equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1151628A (en) * | 1997-08-08 | 1999-02-26 | Randotetsuku:Kk | Height measuring instrument for industrial machine |
-
2015
- 2015-12-11 CN CN201510915641.4A patent/CN105571564B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101463806A (en) * | 2009-01-07 | 2009-06-24 | 林智勇 | Energy-saving power supply device |
| CN104364468A (en) * | 2012-04-02 | 2015-02-18 | 拉格股份公司 | Face equipment comprising hose levels placed on the shield support frames of said face equipment |
| CN103376179A (en) * | 2012-04-12 | 2013-10-30 | 浙江三花股份有限公司 | Pressure sensor |
| CN103017705A (en) * | 2012-09-28 | 2013-04-03 | 山西科达自控工程技术有限公司 | Pressure type hydraulic support height detection system and method |
| CN104006262A (en) * | 2013-02-27 | 2014-08-27 | 中国石油集团长城钻探工程有限公司 | Head joint device for pipe body opening end |
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| Publication number | Publication date |
|---|---|
| CN105571564A (en) | 2016-05-11 |
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Address after: 100013, Beijing, Chaoyang District, Hepingli Youth ditch East Road, building 5, one floor Patentee after: Beijing Tianma Zhikong Technology Co.,Ltd. Address before: 100013, Beijing, Chaoyang District, Hepingli Youth ditch East Road, building 5, one floor Patentee before: BEIJING TIANDI-MARCO ELECTRO-HYDRAULIC CONTROL SYSTEM Co.,Ltd. |