CN104500118A - Statically indeterminate pull rod mechanism of excavation support - Google Patents
Statically indeterminate pull rod mechanism of excavation support Download PDFInfo
- Publication number
- CN104500118A CN104500118A CN201410759019.4A CN201410759019A CN104500118A CN 104500118 A CN104500118 A CN 104500118A CN 201410759019 A CN201410759019 A CN 201410759019A CN 104500118 A CN104500118 A CN 104500118A
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- CN
- China
- Prior art keywords
- side arm
- base
- indeterminate
- excavation support
- link mechanism
- 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
- 238000009412 basement excavation Methods 0.000 title claims description 21
- 241001125879 Gobio Species 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000000034 method 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
- E21D23/0418—Positioning devices and stabilizing means for the props
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Road Signs Or Road Markings (AREA)
Abstract
The invention discloses a statically indeterminate pull rod mechanism of a roadway support. The statically indeterminate pull rod mechanism comprises a front frame left base, a front frame right base, a rear frame left base and a rear frame right base, wherein the front ends of the front frame left base and the front frame right base are connected with a connecting plate device; the rear parts of the front frame left base and the front frame right base are connected with a pull rod device; the pull rod device comprises two pull rods arranged in a cross mode. The support can be effectively prevented from toppling over or moving left and right when a front frame is pushed, so that the management of the support for a top plate is strengthened.
Description
Technical field
The present invention relates to a kind of colliery excavation support, particularly relate to a kind of indeterminate drag link mechanism of excavation support.
Background technology
Along with improving constantly of mine machinery, require that drift section is increasing, coal Roadway Support Technology is developed very rapid.The more important thing is, the supporting of alley hydraulic support enormously simplify coal-face end support and advance support technique, improves operating environment, ensure that safety in production, for the quick propelling of coal-face creates good condition.At present, the support technology of excavation support oneself be at home and abroad widely used, be colliery realize high-yield and high-efficiency produce requisite key technology it.
In order to supporting roof that can be safe again can smoothly by transporting materials vehicle, return aircourse support is generally designed to split left and right formula; In order to increase supporting length, one group of excavation support all needs about 20 meters, so frame form before and after adopting.The air way support side arm of front and back frame is connected with advancing jack with between after-frame, and walking manner adopts after-frame to push away side arm, and side arm draws after-frame.
As shown in Figure 1 a, 1 b, in prior art, the maximum walk problem of return airway support be exactly after-frame when pushing away side arm easily left and right partially, connect in case riding with 2 tune frame jack between the left and right base of general side arm.
The shortcoming of above-mentioned prior art is: adjust frame jack to connect and easily rotate.
Summary of the invention
The object of this invention is to provide a kind of can effective anti-thrust side arm time support tilt or left and right alter the indeterminate drag link mechanism of the excavation support of frame.
The object of the invention is to be achieved through the following technical solutions:
The indeterminate drag link mechanism of excavation support of the present invention, comprise the left base of side arm, the right base of side arm, the left base of after-frame, the right base of after-frame, the front end of the left base of described side arm and the right base of side arm is connected with device of winning in succession, the rear portion of the left base of described side arm and the right base of side arm is connected with draw rod device, and described draw rod device comprises two pull bars arranged in right-angled intersection.
As seen from the above technical solution provided by the invention, the indeterminate drag link mechanism of the excavation support that the embodiment of the present invention provides, because the front end of the left base of side arm and the right base of side arm is connected with device of winning in succession, the rear portion of the left base of side arm and the right base of side arm is connected with draw rod device, draw rod device comprises two pull bars arranged in right-angled intersection, can effective anti-thrust side arm time support tilt or left and right alter frame, strengthen the management of support to top board.
Accompanying drawing explanation
Fig. 1 a is the side structure schematic diagram of excavation support in prior art;
Fig. 1 b is the plane structure schematic diagram of excavation support in prior art;
The side structure schematic diagram of the indeterminate drag link mechanism of the excavation support that Fig. 2 a provides for the embodiment of the present invention;
The plane structure schematic diagram of the indeterminate drag link mechanism of the excavation support that Fig. 2 b provides for the embodiment of the present invention.
In figure:
1, the right base of side arm, 2, the left base of side arm, 3, the right base of after-frame, 4, the left base of after-frame, 5, advancing jack, 6, adjust frame jack, 7, easily run-on point, 8, device of winning in succession, 9, draw rod device, 10, low gudgeon, 11, high gudgeon, 12, chamfering.
Detailed description of the invention
To be described in further detail the embodiment of the present invention below.
The indeterminate drag link mechanism of excavation support of the present invention, its preferably detailed description of the invention be:
Comprise the left base of side arm, the right base of side arm, the left base of after-frame, the right base of after-frame, the front end of the left base of described side arm and the right base of side arm is connected with device of winning in succession, the rear portion of the left base of described side arm and the right base of side arm is connected with draw rod device, and described draw rod device comprises two pull bars arranged in right-angled intersection.
Described connecting plate device comprises base plate, and the two ends of described base plate are fixedly connected on the otic placode of the left base of described side arm and the right base of side arm respectively.
The bottom and upper segment of the leading edge of described base plate is equipped with chamfering.
Described base plate is the steel plate that 50mm is thick, and described chamfering is 20X45 °.
The top of the left base of described side arm and the right base of side arm is respectively equipped with a high gudgeon and a low gudgeon, and a pull bar in two pull bars is connected with two low gudgeons, another root pull bar is connected with two high gudgeons.
The top of the left base of described side arm and the right base of side arm is respectively equipped with two sleeves, and described high gudgeon and low gudgeon are inserted in one of them sleeve respectively.
The indeterminate drag link mechanism of excavation support of the present invention, solves the problem pushing away side arm and easily rotate.
Specific embodiment:
As shown in Fig. 2 a, 2b, the left and right base front portion of side arm connects with connecting plate device, and connecting plate is the otic placode with being welded to connect base about the thick base plate of 50mm, the upper and lower all 20X45 ° of chamfering of base plate, top chamfering facilitates the current of materials vehicle, and below chamfering facilitates the reach of support.The rear portion of the left and right base of side arm connects by cruciform shape draw rod device, concrete connected mode is: with four gudgeons respectively with the sleeve connection on base, be connected with pull bar by gudgeon, for preventing interfering, two pull bars adopt a low high form interconnection again.
Between the frame of such left and right two, front portion connects with connecting plate, and the rear portion pull bar that height intersects connects, and just defines indeterminate mechanism.Statically-indeterminate structure to be geometric properties be geometry is constant but there is the structural system of superfluous constraint, is the structural system that Practical Project often adopts.Due to the existence of superfluous constraint, make this class formation still can bear external load after partially restrained or Joint failure.
The present invention can effective anti-thrust side arm time support tilt or left and right alter frame, strengthen the management of support to top board, if the bearing pin of one, pull bar is taken off when crossing materials vehicle, pull bar is become a full member just passable, crossed car again pull bar to be installed later, simple to operate, decrease the labour intensity of workman.The draw rod device that height intersects connects with two pull bars, is connected compares with past two jack, and cost of production declines many.
The above; be only the present invention's preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (6)
1. the indeterminate drag link mechanism of an excavation support, comprise the left base of side arm, the right base of side arm, the left base of after-frame, the right base of after-frame, it is characterized in that, the front end of the left base of described side arm and the right base of side arm is connected with device of winning in succession, the rear portion of the left base of described side arm and the right base of side arm is connected with draw rod device, and described draw rod device comprises two pull bars arranged in right-angled intersection.
2. the indeterminate drag link mechanism of excavation support according to claim 1, is characterized in that, described connecting plate device comprises base plate, and the two ends of described base plate are fixedly connected on the otic placode of the left base of described side arm and the right base of side arm respectively.
3. the indeterminate drag link mechanism of excavation support according to claim 2, is characterized in that, the bottom and upper segment of the leading edge of described base plate is equipped with chamfering.
4. the indeterminate drag link mechanism of excavation support according to claim 3, is characterized in that, described base plate is the steel plate that 50mm is thick, and described chamfering is 20X45 °.
5. the indeterminate drag link mechanism of the excavation support according to any one of Claims 1-4, it is characterized in that, the top of the left base of described side arm and the right base of side arm is respectively equipped with a high gudgeon and a low gudgeon, and a pull bar in two pull bars is connected with two low gudgeons, another root pull bar is connected with two high gudgeons.
6. the indeterminate drag link mechanism of excavation support according to claim 5, is characterized in that, the top of the left base of described side arm and the right base of side arm is respectively equipped with two sleeves, and described high gudgeon and low gudgeon are inserted in one of them sleeve respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410759019.4A CN104500118A (en) | 2014-12-10 | 2014-12-10 | Statically indeterminate pull rod mechanism of excavation support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410759019.4A CN104500118A (en) | 2014-12-10 | 2014-12-10 | Statically indeterminate pull rod mechanism of excavation support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104500118A true CN104500118A (en) | 2015-04-08 |
Family
ID=52941557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410759019.4A Pending CN104500118A (en) | 2014-12-10 | 2014-12-10 | Statically indeterminate pull rod mechanism of excavation support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104500118A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047883A (en) * | 2021-05-11 | 2021-06-29 | 三一重型装备有限公司 | Pushing structure and advance hydraulic support |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200982201Y (en) * | 2006-12-14 | 2007-11-28 | 梁晖勇 | Self-walking type light hydraulic support |
| CN201232561Y (en) * | 2008-07-31 | 2009-05-06 | 中国矿业大学 | Double-layer and double-fork hyperstatic hydraulic support |
| CN102704977A (en) * | 2012-07-09 | 2012-10-03 | 中国矿业大学 | Universal-type statically indeterminate hydraulic support |
| CN102748052A (en) * | 2012-07-26 | 2012-10-24 | 兖州煤业股份有限公司 | Combined mining rail crossheading circulating forward type forepoling system |
| CN203145981U (en) * | 2013-03-15 | 2013-08-21 | 中国矿业大学 | Integral top beam statically indeterminate hydraulic support |
| CN203547777U (en) * | 2013-09-03 | 2014-04-16 | 郑煤机集团潞安新疆机械有限公司 | Support |
| CN204457830U (en) * | 2014-12-10 | 2015-07-08 | 中煤北京煤矿机械有限责任公司 | The indeterminate drag link mechanism of excavation support |
-
2014
- 2014-12-10 CN CN201410759019.4A patent/CN104500118A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200982201Y (en) * | 2006-12-14 | 2007-11-28 | 梁晖勇 | Self-walking type light hydraulic support |
| CN201232561Y (en) * | 2008-07-31 | 2009-05-06 | 中国矿业大学 | Double-layer and double-fork hyperstatic hydraulic support |
| CN102704977A (en) * | 2012-07-09 | 2012-10-03 | 中国矿业大学 | Universal-type statically indeterminate hydraulic support |
| CN102748052A (en) * | 2012-07-26 | 2012-10-24 | 兖州煤业股份有限公司 | Combined mining rail crossheading circulating forward type forepoling system |
| CN203145981U (en) * | 2013-03-15 | 2013-08-21 | 中国矿业大学 | Integral top beam statically indeterminate hydraulic support |
| CN203547777U (en) * | 2013-09-03 | 2014-04-16 | 郑煤机集团潞安新疆机械有限公司 | Support |
| CN204457830U (en) * | 2014-12-10 | 2015-07-08 | 中煤北京煤矿机械有限责任公司 | The indeterminate drag link mechanism of excavation support |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047883A (en) * | 2021-05-11 | 2021-06-29 | 三一重型装备有限公司 | Pushing structure and advance hydraulic support |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20150408 |