CN106289679A - A kind of hydraulic support protective side regains the method for detection - Google Patents
A kind of hydraulic support protective side regains the method for detection Download PDFInfo
- Publication number
- CN106289679A CN106289679A CN201610613314.8A CN201610613314A CN106289679A CN 106289679 A CN106289679 A CN 106289679A CN 201610613314 A CN201610613314 A CN 201610613314A CN 106289679 A CN106289679 A CN 106289679A
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- CN
- China
- Prior art keywords
- detection
- hydraulic support
- face guard
- connecting rod
- protection plate
- 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
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A kind of side protection plate of hydraulic support regains the method for detection, and including face guard, linkage and oil cylinder, described face guard connects described oil cylinder by described linkage, and described linkage includes force cell.The method is based on face guard linkage, by detecting the stressing conditions of connecting rod and analyzing, it is achieved the detection that side protection plate of hydraulic support is regained.The present invention facilitates implementation, force detection sensor technology maturation, and reliability is high, it is adaptable to domestic hundreds of individual combining adopt electrohydraulic control system work surface, have good market prospect.
Description
Technical field
The present invention relates to the control system of a kind of coal mine underground hydraulic support frame parts, particularly relate to a kind of for hydraulic support
Wall supporting regains the method for detection.
Background technology
In high-seam working face exploitation process, often after coal-winning machine coal cutting, open support wall supporting in time at present,
To carrying out rib supporting；During mining, need to regain face guard, it is to avoid coal-winning machine is done with side protection plate of hydraulic support through out-of-date
Relate to.Along with the technology of coal-face automatization, unmanned coal mining develops, need the withdrawal of face guard is detected automatically,
And the support applying it to work surface controls central.In conventional art, use a kind of inductive switch detection external metallization, real
Detection is regained in existing face guard position, and this method detecting distance is short, and reliability is low；Or use stroke sensor to sense with inclination angle
Needed for the mode that the multiple sensors such as device, pressure transducer coordinates detects face guard state, this method, sensor is many, uses multiple
Miscellaneous, cost is high.
In prior art, as CN103512590A discloses the detection method of a kind of side protection plate of hydraulic support, including by
One excitation body arranges on the face guard of hydraulic support, and the second excitation body is arranged on the extensible canopy of hydraulic support, and sensor is arranged
In back timber lower surface, voltage operational circuit connects the first and second magnetic inductors, and the first magnetic inductor detects the first excitation body
Magnetic field intensity, it is thus achieved that the first voltage, the second magnetic inductor detects the magnetic induction of the second excitation body, it is thus achieved that the second voltage, root
The retracted position of face guard is judged according to the first voltage and the second voltage；CN102852542A discloses a kind of side protection plate of hydraulic support
Detection method, detect the position of face guard by proximity switch and then judge the retracted state of face guard.But above-mentioned contrast
The not openest particular location using tension type detection face guard of file, equally exists use complexity, and cost is high, reliability
Low problem.
Summary of the invention
For solving the problems referred to above, the present invention proposes a kind of method that hydraulic support protective side regains detection, including face guard, company
Bar structure and oil cylinder, described face guard connects described oil cylinder by described bar linkage structure, and described bar linkage structure includes force-measuring sensing
Device.
The most described bar linkage structure includes the strut and tie not being directly connected to described face guard, and described strut and tie is that dynamometry passes
Sensor.
The most described bar linkage structure includes the strut and tie not being directly connected to described face guard, and connects each connecting rod, oil cylinder
Bearing pin, one or two in described bearing pin is force cell.
Present invention achieves the detection that side protection plate of hydraulic support is regained；Force detection sensor technology maturation, it is simple to realize, can
High by property；It is applicable to domestic hundreds of individual combining and adopts electrohydraulic control system work surface, there is good market prospect.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of hydraulic support protective side part；
Accompanying drawing 2 is pull pressure sensor schematic diagram in hydraulic support protective side part；
Accompanying drawing 3 is bearing pin sensor schematic diagram in hydraulic support protective side part.
Reference is as follows:
1-back timber caving shield；2-hydraulic jack；3-pull pressure sensor；4-face guard；
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is done further exemplary detailed description.
Seeing accompanying drawing 1, common hydraulic support protective side structure includes face guard, bar linkage structure and oil cylinder, and face guard is coal
The supporting parts of wall, it connects oil cylinder by bar linkage structure, is at holding state by stretching out of oil cylinder, when need not prop up
During support, oil cylinder is retracted and it can be driven to retract.
In embodiment one, bar linkage structure includes the first support bar and second support bar of the connection with face guard support,
Also include being arranged between the first support bar and the second support bar, directly do not connected with face guard by bearing pin pivot joint respectively with it
The stretch connect, stretch, the first support bar, the second support bar and face guard one double leval jib of composition, the cylinder rod of oil cylinder connects
One end in stretch.For measuring whether face guard stretches out, stretch being arranged to force cell, force cell is on the one hand
Play the interconnection function of rod member, also act as the effect measuring push-pull effort simultaneously, stress size and direction can be measured, by measure
Power is converted to the signal of telecommunication, exports in the way of curtage.As when face guard stretches out state, it is due to the contact of double leval jib
Being in extended state and under tension, when face guard retracted mode, it is then in, according to on-the-spot installment state, the shape that do not stresses
State or be in compressive state and by thrust, according to the difference of stress, it is possible to the convenient state drawing face guard accurately.With
Time, owing to also differing in the size of different its stress of retracted position, it is also possible to rule of thumb formula is by output electricity
The size of signal accurately judges the physical location in the telescopic process of face guard.
In embodiment two, see accompanying drawing 2, stretch is not set to force cell, and by stretch and the first bar
The bearing pin connected with the second bar is as force cell, and it equally plays the effect of detection face guard state, due to hydraulic pressure
Support belongs to down-hole weight equipment, and its working environment is relatively more severe, and stressing conditions is complicated and higher to security requirement, needs
A fixing device is installed in the side of bearing pin, strengthens the degree of stability of the bearing pin as force cell, and other move to prevent support
Make wall supporting is regained the generation interference of detection.In the present embodiment, it is preferred to use the bearing pin being connected with back timber caving shield is as survey
Force transducer, this is owing to relative to other bearing pin, its stress is less and Impact direction is single, it is simple to detects and analyzes.
The above, patent the most of the present invention preferably detailed description of the invention, but the protection domain of patent of the present invention is not
Being confined to this, any those familiar with the art, in the technical scope of patent diselosesll of the present invention, can readily occur in
Change or replacement, all should contain within the protection domain of patent of the present invention.
Claims (2)
1. the method that a side protection plate of hydraulic support regains detection, it is characterised in that:
In side protection plate of hydraulic support course of action, detection connecting rod stress size and direction.
Side protection plate of hydraulic support retracted state and the state of stretching out is determined according to connecting rod stress size and direction.
2. the method that side protection plate of hydraulic support as claimed in claim 1 regains detection, it is characterised in that: described detection connecting rod is subject to
Power size and direction, including:
Directly detecting connecting rod stress size and direction by pull bar force transducer, wherein, pull bar force transducer includes connecting rod and pressure
Power detecting element.
Directly detecting connecting rod stress size and direction by bearing pin sensor, wherein, bearing pin sensor includes bearing pin and pressure inspection
Survey element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610613314.8A CN106289679A (en) | 2016-08-01 | 2016-08-01 | A kind of hydraulic support protective side regains the method for detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610613314.8A CN106289679A (en) | 2016-08-01 | 2016-08-01 | A kind of hydraulic support protective side regains the method for detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106289679A true CN106289679A (en) | 2017-01-04 |
Family
ID=57663029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610613314.8A Pending CN106289679A (en) | 2016-08-01 | 2016-08-01 | A kind of hydraulic support protective side regains the method for detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106289679A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2005242116A1 (en) * | 2004-12-10 | 2006-06-29 | Yanzhou Coal Mining Company Limited | Electro-hydraulically controlled roof coal caving method and hydraulic support therefor |
| CN102852542A (en) * | 2012-08-08 | 2013-01-02 | 北京天地玛珂电液控制系统有限公司 | Automatic control system and automatic control method used for protecting face guard of coal mine underground fully mechanized coal face support |
| CN103512590A (en) * | 2013-09-27 | 2014-01-15 | 广州日滨科技发展有限公司 | Mining hydraulic support state inspection device and measuring method |
| CN103670457A (en) * | 2013-12-05 | 2014-03-26 | 四川航天电液控制有限公司 | Real-time monitoring system for hydraulic support on coal mine fully mechanized working face |
| CN105607630A (en) * | 2016-03-22 | 2016-05-25 | 广州日滨科技发展有限公司 | Self-checking method and device for checking initial state of electro-hydraulic control system of hydraulic support for coal mines |
-
2016
- 2016-08-01 CN CN201610613314.8A patent/CN106289679A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2005242116A1 (en) * | 2004-12-10 | 2006-06-29 | Yanzhou Coal Mining Company Limited | Electro-hydraulically controlled roof coal caving method and hydraulic support therefor |
| CN102852542A (en) * | 2012-08-08 | 2013-01-02 | 北京天地玛珂电液控制系统有限公司 | Automatic control system and automatic control method used for protecting face guard of coal mine underground fully mechanized coal face support |
| CN103512590A (en) * | 2013-09-27 | 2014-01-15 | 广州日滨科技发展有限公司 | Mining hydraulic support state inspection device and measuring method |
| CN103670457A (en) * | 2013-12-05 | 2014-03-26 | 四川航天电液控制有限公司 | Real-time monitoring system for hydraulic support on coal mine fully mechanized working face |
| CN105607630A (en) * | 2016-03-22 | 2016-05-25 | 广州日滨科技发展有限公司 | Self-checking method and device for checking initial state of electro-hydraulic control system of hydraulic support for coal mines |
Non-Patent Citations (3)
| Title |
|---|
| 商献伟 等: "液压支架护帮板运动及受力分析", 《煤炭技术》 * |
| 袁广 等: "液压支架护帮板的力学分析与计算", 《煤矿机械》 * |
| 钱洋喜 等: "液压支架护帮板收回效果分析与研究", 《煤矿机械》 * |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170104 |