CN105571564A - Height measuring sensor and hydraulic support using same - Google Patents
Height measuring sensor and hydraulic support using same Download PDFInfo
- Publication number
- CN105571564A CN105571564A CN201510915641.4A CN201510915641A CN105571564A CN 105571564 A CN105571564 A CN 105571564A CN 201510915641 A CN201510915641 A CN 201510915641A CN 105571564 A CN105571564 A CN 105571564A
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- China
- Prior art keywords
- valve seat
- top end
- liquid
- sensor
- end component
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- 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
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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
The invention discloses a height measuring sensor which comprises a pressure sensor, a liquid pipeline, a bottom end valve seat and a top end member, wherein the bottom end valve seat comprises a liquid replenishing one-way valve; the pressure sensor is arranged in the bottom end valve seat; the bottom end valve seat is connected with the top end member through the liquid pipeline; the top end member is provided with a throttling port and is constructed into a structure with a function of weakening liquid evaporation. According to the height measuring sensor disclosed by the invention, the bottom valve seat structurally comprises two one-way valves which facilitate liquid replenishment and replacement of the pressure sensor, and are flexible and convenient in use; the influence of liquid loss and evaporation on measurement is avoided, so that the bottom valve seat structure is closer to engineering application; the top end member can select three different forms which are suitable for different working occasions; by using the three forms, height error caused by liquid evaporation can be effectively reduced.
Description
Technical field
The present invention relates to a kind of elevation carrection sensor, particularly relating to a kind of survey sensor of the height for measuring the underground equipments such as hydraulic support and the hydraulic support with above-mentioned survey sensor.
Background technology
Along with improving constantly of underground coal mine fully-mechanized mining working automatization level, real-time, Measurement accuracy and the reading of mining height data are more and more important.As the important parameter that workplace controls, it combines with pressure data, can reflect roof and floor mechanics in time, have directive function to safety in production; In addition, altitude information is used for coal production process monitoring, according to the coal cutting degree of depth and height, automatically calculates mine coal output, there is positive realistic meaning.
The method that existing support height is measured has: on the parts such as set cap, caving shield, connecting rod, base, install obliquity sensor additional, calculate support height by trigonometric function, the method precision is large compared with low, operand, system complex, installation and maintenance are more difficult; Have in addition and install the sensor such as laser or ultrasound wave at set cap, measure the light between back timber to base or acoustic reflection distance, the method is to reflecting surface, require higher to on-the-spot light, coal dust, and reliability is poor.So at present, the measurement of support height also mainly relies on the scale bar that manual observation force piece suspends in midair to complete, and due to impacts such as workplace coal dust, spaces, causes certain influence to timberer's work quality.
In the prior art, CN103017705A discloses a kind of altitude measurement system of hydraulic support, comprise pressure transducer, control module, power module and hydraulic hose, the airtight Bonding pressure sensor in hydraulic hose one end, other end opening, be loaded with liquid in hydraulic hose, control module Bonding pressure sensor, gather pressure data by pressure transducer and be converted into support height; CN104364468A discloses a kind of altitude measurement system of hydraulic support, comprises flexible pipe level meter, and the end of flexible pipe is furnished with pressure transducer, and the liquid-column height detected by pressure transducer connects the absolute altitude conversing protection supporting frame; CN101881609A disclose a kind of can the device of monitoring vertical displacement, it can be used to the operating range of monitoring hydraulic support, comprise retaining valve, connecting pipe, piezoelectric strain gauge, data processor and process computer, when range conversion between retaining valve and piezoelectric strain gauge changes, exported by piezoelectric strain gauge perception, thus draw displacement and and then the height to obtain between two mobile objects.
But above-mentioned documents does not all openly have the structure preventing soft liquid in pipe from evaporating or overflowing, and does not openly have special fluid infusion parts yet.
Summary of the invention
For solving the problem, the present invention proposes a kind of elevation carrection sensor, comprises pressure transducer, liquid line, bottom valve seat and top end component, and described bottom valve seat comprises fluid infusion retaining valve, and described pressure transducer is arranged in the valve seat of described bottom; Described bottom valve seat is connected with described top end component by described liquid line, and described top end component has restriction and described top end component is configured with the structure weakening liquid vaporization function.
Preferred described bottom valve seat also comprises sensor retaining valve, and described pressure transducer is arranged in the valve seat of described bottom by described sensor retaining valve.
Preferred described top end component is liquid storage cylinder, and described restriction is arranged on the sidewall of described liquid storage cylinder.
Preferred described top end component is for waiting horizontal plate coil.
Preferred described top end component is constant amplitude spiral pipe.
A kind of hydraulic support, it has above-mentioned elevation carrection sensor, and described bottom valve seat is fixedly installed on the base of described hydraulic support.
Bottom valve holder structure of the present invention comprises 2 retaining valves, is convenient to fluid infusion and changes pressure transducer, flexible and convenient to use, avoids fluid loss and evaporates measuring the impact produced, making it more be close to engineer applied; Top end component can select 3 kinds of different forms, is applicable to different workplaces, all can effectively reduce liquid and evaporate the height error brought.
Accompanying drawing explanation
Accompanying drawing 1 is for being provided with the structural representation of the hydraulic support of elevation carrection sensor of the present invention;
Accompanying drawing 2 is the structural representation of the bottom valve seat of elevation carrection sensor in accompanying drawing 1;
Accompanying drawing 3-5 is the structural representation of top end component multi-form in elevation carrection sensor.
Reference numeral is as follows:
1-bottom valve seat; 2-top end component; 3-liquid line; 10-fluid infusion retaining valve; 11-sensor retaining valve; 20-restriction; 21-liquid storage cylinder.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
See accompanying drawing 1, elevation carrection sensor is arranged on hydraulic support, adopts the method for hydrostatic pressure to carry out the measurement of height.
Elevation carrection sensor comprises pressure transducer, bottom valve seat, top end component, liquid line four part substantially.Pressure transducer is installed on the valve seat of bottom, is fixed on hydraulic support foundation by bottom valve seat; Bottom valve seat is connected by liquid line with top end component, is full of liquid in liquid line; Top end component is fluid storage device, and has restriction, is communicated with ambient atmosphere, forms an overall fluid loop, by pressure transducer measuring circuit pressure.
See accompanying drawing 2, bottom valve seat part comprises fluid infusion retaining valve, can also comprise the parts such as sensor retaining valve; When liquid evaporation in liquid line or when surprisingly overflowing, in pipeline, carry out fluid infusion by fluid infusion retaining valve, when top end component restriction overflows only, guarantee in pipeline without air; Can sensor retaining valve setting pressure sensor be passed through, when pressure transducer damages, can more emat sensor at any time, and in pipeline, liquid can not overflow.
Top end component part is fluid storage device, and Main Function is weaken the impact of liquid evaporation on elevation carrection.Can have three kinds of ways of realization: see accompanying drawing 3, it is liquid storage cylinder form, and top is the cavity body of a constant volume, and inside is full of liquid, and sidewall is opened restriction and is communicated with air, slow down the direct evaporation of liquid; See accompanying drawing 4, it is for waiting horizontal plate coil form, and under this form, liquid line carries out spiraling layout with the form of similar mosquito-repellent incense in same level, and in liquid evaporation under normal circumstances, liquid level is substantially constant; See accompanying drawing 5, it is constant amplitude spiral pipe form, and under this form, liquid line is with spring-like form screw arrangement, and opposed vertical pipeline, in same evaporation capacity situation, has less height change, reduce height error with this.
In measuring process, according to formula P=ρ * g*H, in liquid, certain any pressure P is directly proportional with the vertical height H of this some distance liquid level, so utilizes pressure transducer to measure the pressure of liquid level under liquid and can measure the height of its liquid level.Further, lower liquid level is fixed on bracket base position, upper liquid level is fixed on set cap position, so liquid level can characterize support height.
The output of sensor is voltage (or electric current) signal of standard, directly can access support electric-control system analog quantity and detect calculating and the display that interface carries out height, computing method:
Such as, transducer range is 0 ~ 70Kpa, and output signal is 0.5 ~ 4.5VDC, then 70kPa respective heights is roughly 7 meter water columns, according to pressure formula,
Herein, ρ gets 1000kg/m
3, g gets 9.8m/s
2; Pressure transducer exports and does analog to digital conversion through CPU, obtains magnitude of voltage V, unit mv, then
H unit is millimeter, after simplification, following formula can be adopted to calculate:
Wherein, V unit is mv, H unit is mm.
Measuring height H is hydraulic support true altitude value with sensor setting height(from bottom) (comprising the height h2 of distance top depth of beam h1 and distance base) sum
The above; be only patent of the present invention preferably embodiment; but the protection domain of patent of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope of patent diselosesll of the present invention; the change that can expect easily or replacement, within the protection domain that all should be encompassed in patent of the present invention.
Claims (6)
1. an elevation carrection sensor, comprises pressure transducer, liquid line, it is characterized in that: also comprise bottom valve seat and top end component,
Described bottom valve seat comprises fluid infusion retaining valve, and described pressure transducer is arranged in the valve seat of described bottom;
Described bottom valve seat is connected with described top end component by described liquid line, and described top end component has restriction and described top end component is configured with the structure weakening liquid vaporization function.
2. elevation carrection sensor as claimed in claim 1, it is characterized in that: described bottom valve seat also comprises sensor retaining valve, described pressure transducer is arranged in the valve seat of described bottom by described sensor retaining valve.
3. elevation carrection sensor as claimed in claim 1 or 2, is characterized in that: described top end component is liquid storage cylinder, and described restriction is arranged on the sidewall of described liquid storage cylinder.
4. elevation carrection sensor as claimed in claim 1 or 2, is characterized in that: described top end component is for waiting horizontal plate coil.
5. elevation carrection sensor as claimed in claim 1 or 2, is characterized in that: described top end component is constant amplitude spiral pipe.
6. a hydraulic support, is characterized in that: its have as arbitrary in claim 1-5 as described in elevation carrection sensor, described bottom valve seat is fixedly installed on the base of described 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 true CN105571564A (en) | 2016-05-11 |
| CN105571564B CN105571564B (en) | 2018-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108491360A (en) * | 2018-02-26 | 2018-09-04 | 北京天地玛珂电液控制系统有限公司 | A kind of computational methods of coal mining output |
| CN109737905A (en) * | 2018-12-25 | 2019-05-10 | 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） | A kind of safety valve spool displacement monitoring system of large pressurized vessel |
| 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 (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1151628A (en) * | 1997-08-08 | 1999-02-26 | Randotetsuku:Kk | Height measuring instrument for industrial machine |
| 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 |
-
2015
- 2015-12-11 CN CN201510915641.4A patent/CN105571564B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1151628A (en) * | 1997-08-08 | 1999-02-26 | Randotetsuku:Kk | Height measuring instrument for industrial machine |
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108491360A (en) * | 2018-02-26 | 2018-09-04 | 北京天地玛珂电液控制系统有限公司 | A kind of computational methods of coal mining output |
| 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 |
| CN109737905A (en) * | 2018-12-25 | 2019-05-10 | 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） | A kind of safety valve spool displacement monitoring system of large pressurized vessel |
| 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 |
Also Published As
| Publication number | Publication date |
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| CN105571564B (en) | 2018-05-29 |
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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. |
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