CN102877875B - Thin coal seam support bottom raising mechanism and thin coal seam support - Google Patents
Thin coal seam support bottom raising mechanism and thin coal seam support Download PDFInfo
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- CN102877875B CN102877875B CN201210345649.8A CN201210345649A CN102877875B CN 102877875 B CN102877875 B CN 102877875B CN 201210345649 A CN201210345649 A CN 201210345649A CN 102877875 B CN102877875 B CN 102877875B
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- bottom raising
- coal seam
- thin coal
- hinged
- base
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Abstract
The invention discloses a thin coal seam support bottom raising mechanism and a thin coal seam support. Two bottom raising rods and two bottom raising jacks are arranged between separated bases; the middle parts of the bottom raising rods are provided with first reamed holes, the rear parts of the bottom raising rods are provided with second reamed holes, and the front ends of the bottom raising rods are arc-shaped and are positioned above a displacement rod; a gap bridge is provided with two first lug plates; each first lug plate and inner main ribs of the bases on the adjacent sides of the mechanism form a group of hinge lugs respectively; each group of hinge lugs are hinged with the first reamed holes on the middle parts of the bottom raising rods respectively; the middle parts of the inner main ribs of the bases on the two sides of the mechanism are provided with a second lug plate respectively; and the front end of each bottom raising jack is hinged with the second reamed hole on the rear part of a corresponding bottom raising rod, and the rear end of each bottom raising jack is hinged with a corresponding second lug plate. Through liquid inflow and backflow of the upper and lower cavities of the bottom raising jacks, the bottom raising rods are erected and retracted, so that bottom raising and falling actions of the support can be realized, the support can be smoothly moved and pushed to slide, a small number of structural spaces of the thin coal seam support is fully utilized, and the support is sufficient in bottom raising capacity at the same time.
Description
Technical field
The present invention relates to a kind of hydraulic support of thin coal bed fully-mechanized mining face, particularly relate to a kind of Bracket in Thin Coal Seam bottom raising mechanism and Bracket in Thin Coal Seam.
Background technology
For thin coal bed fully-mechanized mining face, when the base plate had is based on mud stone, during water-swellable, hydraulic support often can not move frame smoothly, and Bracket in Thin Coal Seam is owing to restricting by factors such as support heights, cannot as support with great mining height, bottom lifting device is set easily, after making support lift the end, moves frame.
Summary of the invention
The object of this invention is to provide a kind of the Bracket in Thin Coal Seam bottom raising mechanism and the Bracket in Thin Coal Seam that are suitable for Bracket in Thin Coal Seam.
The object of the invention is to be achieved through the following technical solutions:
Bracket in Thin Coal Seam bottom raising mechanism of the present invention, comprise the base of split, the front portion of the base of split connects by passing a bridge, rear portion is connected by high-strength plate, pusher rod and advancing jack is provided with between the base of split, also be provided with between the base of split two lift bottom bar and two lift end jack, described in lift bottom bar middle part be provided with the first fraising, rear portion is provided with the second fraising, front end is arc-shaped and is positioned at the top of described pusher rod;
Described gap bridge is provided with two piece of first otic placode, every block first otic placode forms one group of hinged ear with main muscle in the base of sides adjacent respectively, often organize hinged ear to lift first in the middle part of bottom bar with one respectively and ream hinged, in the base of both sides, the middle part of main muscle is respectively equipped with the second otic placode, each front end of lifting end jack is lifted second of bottom bar rear portion respectively and is reamed hinged with one, each rear end of lifting end jack is hinged with second otic placode respectively.
Bracket in Thin Coal Seam of the present invention, this Bracket in Thin Coal Seam is provided with above-mentioned Bracket in Thin Coal Seam bottom raising mechanism.
As seen from the above technical solution provided by the invention, the Bracket in Thin Coal Seam bottom raising mechanism that provides of the embodiment of the present invention and Bracket in Thin Coal Seam.Also be provided with between base due to split two lift bottom bar and two lift end jack, described in lift bottom bar middle part be provided with the first fraising, rear portion is provided with the second fraising, front end is arc-shaped and is positioned at the top of described pusher rod; Described gap bridge is provided with two piece of first otic placode, every block first otic placode forms one group of hinged ear with main muscle in the base of sides adjacent respectively, often organize hinged ear to lift first in the middle part of bottom bar with one respectively and ream hinged, in the base of both sides, the middle part of main muscle is respectively equipped with the second otic placode, each front end of lifting end jack is lifted second of bottom bar rear portion respectively and is reamed hinged with one, each rear end of lifting end jack is hinged with second otic placode respectively.Liquid is entered back by what lift end jack upper and lower cavity, make to lift bottom bar to prop up and regain, what can realize support lifts the end, falling action, ensures that support moves frame and pushing and sliding smoothly, take full advantage of the structure space that Bracket in Thin Coal Seam is few, make support have simultaneously and enough lift end ability.
Accompanying drawing explanation
The structural representation of the Bracket in Thin Coal Seam bottom raising mechanism that Fig. 1 a provides for the embodiment of the present invention;
Fig. 1 b is that the A-A of Fig. 1 a is to sectional view;
Fig. 2 a is the facade structures schematic diagram lifting bottom bar in the embodiment of the present invention;
Fig. 2 b is the plane structure schematic diagram lifting bottom bar in the embodiment of the present invention;
Fig. 3 a is the overall structure schematic diagram of base in the embodiment of the present invention;
Fig. 3 b is that the B-B of Fig. 3 a is to sectional view;
Fig. 4 a is the facade structures schematic diagram of pusher rod in the embodiment of the present invention;
Fig. 4 b is the plane structure schematic diagram of pusher rod in the embodiment of the present invention;
Fig. 5 a is that lifting before the end of supposing in the embodiment of the present invention passes view;
Fig. 5 b is that the C-C of Fig. 5 a is to sectional view;
Fig. 6 is that embodiment of the present invention medium-height trestle lifts end view.
In figure: 1, base, 2, lift bottom bar, 3, lift end jack, 4, pusher rod, 5, advancing jack, 6, gusset, 7, fagging, 8, interior main muscle, the 9, first otic placode, the 10, second otic placode, 11, holder, the 12, third ear plate, A, first fraising, B, the second fraising.
Detailed description of the invention
To be described in further detail the embodiment of the present invention below.
Bracket in Thin Coal Seam bottom raising mechanism of the present invention, its preferably detailed description of the invention be:
Comprise the base of split, the front portion of the base of split connects by passing a bridge, rear portion is connected by high-strength plate, pusher rod and advancing jack is provided with between the base of split, it is characterized in that, also be provided with between the base of split two lift bottom bar and two lift end jack, described in lift bottom bar middle part be provided with the first fraising, rear portion is provided with the second fraising, front end is arc-shaped and is positioned at the top of described pusher rod;
Described gap bridge is provided with two piece of first otic placode, every block first otic placode forms one group of hinged ear with main muscle in the base of sides adjacent respectively, often organize hinged ear to lift first in the middle part of bottom bar with one respectively and ream hinged, in the base of both sides, the middle part of main muscle is respectively equipped with the second otic placode, each front end of lifting end jack is lifted second of bottom bar rear portion respectively and is reamed hinged with one, each rear end of lifting end jack is hinged with second otic placode respectively.
Described bottom bar of lifting is welded by two gussets and a fagging, described fagging is clipped in the middle of two gussets, describedly lift the first fraising in the middle part of bottom bar the second fraising through two gussets and fagging, rear portion through two gussets, the rear portion of described two gussets is bent upwards.
The cylinder body of described advancing jack is connected with base, the piston rod of described advancing jack and the rear portion of described pusher rod hinged.
Described pusher rod is the entity steel plate of 60 ~ 80mm.
Bracket in Thin Coal Seam of the present invention, its preferably detailed description of the invention be:
This Bracket in Thin Coal Seam is provided with above-mentioned Bracket in Thin Coal Seam bottom raising mechanism.
Specific embodiment is as shown in Fig. 1 a to Fig. 6:
As shown in Fig. 1 a, 1b, for base with lift the end, thrust gear assembling relationship figure, mainly comprise base 1, two and lift bottom bar 2, two and lift end jack 3, pusher rod 4, advancing jack 5.
Lift bottom bar 2 and two for two to lift end jack 3 and be arranged symmetrically in outside the interior main muscle of base 1, pusher rod 4 and advancing jack 5 are arranged in the middle of base 1, advancing jack 5 adopts the form of formal dress, namely cylinder body is connected with base 1 by gudgeon, the otic placode at piston rod and pusher rod 4 rear portion is hinged, and the overall width of the hinged ear of this group of pusher rod 4 must ensure that it can be lifted end jack 3 at two and lift between bottom bar 2 to be passed through.
As shown in Fig. 2 a, 2b, lift bottom bar 2 and be welded primarily of two gussets 6 and a fagging 7, fagging 7 is clipped in the middle of two gussets 6.Lift the top of bottom bar, namely two gussets 6 form one group of hinged ear, the second fraising B on the hinged ear of this group with lift end jack 3(as Fig. 1 a, 1b) piston rod hinged, lift the first fraising A and base 1(of bottom bar 2 as Fig. 1 a, 1b) front portion two groups of hinged ears of passing a bridge are hinged.
As shown in Fig. 3 a, 3b, base 1 is bottom opened Split type structure, and there is connection of passing a bridge front portion, and rear portion has high-strength plate to connect, and entirety is bilateral symmetry.There is the first otic placode 9 at anterior gap bridge place, and in base, the front portion of main muscle 8 is provided with circular hole, and the two forms one group of hinged ear, and the hinged ear of this group and above-mentioned first of bottom bar 2 A that reams that lifts pass through pinned connection.In base main muscle 8 middle part outside weld the second otic placode 10, this second otic placode 10 with lift end jack 3(as Fig. 1 a, 1b) cylinder bottom hinged.In base, the rear outside of main muscle 8 is also welded with holder 11, and this holder 11 and advancing jack 5(are as Fig. 1 a, 1b) gudgeon of cylinder body is connected.
As shown in Fig. 4 a, 4b, the pusher rod body of rod is the entity steel plate of a 70mm, and this steel plate thickness is at 60 ~ 80mm, and this example is 70mm.Pusher rod front portion is connected with transporter, there is one group of third ear plate 12 at rear portion, this group third ear plate 12 and advancing jack 5(are as Fig. 1 a, 1b) piston rod hinged, and the overall width of this group third ear plate is less than as in Fig. 1 a, 1b, two lift end jack and lift the inner width of bottom bar, to ensure that this group third ear plate can be lifted end jack and two two smoothly and lift between bottom bar by (as Fig. 5 a, 5b) under the effect of advancing jack.
As shown in Fig. 5 a, 5b, during use, assuming that original state is pusher rod be in the state of stretching out.
As shown in Figure 6, when lifting end jack 3 cavity of resorption feed liquor, the piston rod lifting end jack 3 stretches out, drive lift bottom bar 2 front end with the first fraising A for axle rotates, and overwhelm in pusher rod 4 gradually, continuing to stretch out along with lifting very heavy 3 tops, the end, lifting bottom bar 2 and being rotated further, and 50 ~ 70mm is propped up in base 1 front end the most at last, it is highly 60mm that this example is propped up.
Then advancing jack 5 epicoele feed liquor, support is drawn into, and two lift bottom bar 2 slides in pusher rod 4.After support is drawn and moves on to position, lift end jack 3 epicoele feed liquor, lift bottom bar 2 and regain, then advancing jack 4 cavity of resorption feed liquor, support pushing and sliding, get back to again above-mentioned original state, enter next working cycles.
In the present invention, lift bottom structure and be symmetrically arranged, and make two to lift end jack feed liquor or time liquid simultaneously by HYDRAULIC CONTROL SYSTEM, ensure that the stable type of support; Adopt two less cylinder diameters lift end jack---this example cylinder diameter φ 63, takes full advantage of the structure space that Bracket in Thin Coal Seam is few, makes support have simultaneously and enough lifts end ability.
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 (4)
1. a Bracket in Thin Coal Seam bottom raising mechanism, comprise the base of split, the front portion of the base of split connects by passing a bridge, rear portion is connected by high-strength plate, pusher rod and advancing jack is provided with between the base of split, it is characterized in that, also be provided with between the base of split two lift bottom bar and two lift end jack, described in lift bottom bar middle part be provided with the first fraising, rear portion is provided with the second fraising, front end is arc-shaped and is positioned at the top of described pusher rod;
Described gap bridge is provided with two piece of first otic placode, every block first otic placode forms one group of hinged ear with main muscle in the base of sides adjacent respectively, often organize hinged ear to lift first in the middle part of bottom bar with one respectively and ream hinged, in the base of both sides, the middle part of main muscle is respectively equipped with the second otic placode, each front end of lifting end jack is lifted second of bottom bar rear portion respectively and is reamed hinged with one, each rear end of lifting end jack is hinged with second otic placode respectively;
Described bottom bar of lifting is welded by two gussets and a fagging, described fagging is clipped in the middle of two gussets, describedly lift the first fraising in the middle part of bottom bar the second fraising through two gussets and fagging, rear portion through two gussets, the rear portion of described two gussets is bent upwards.
2. Bracket in Thin Coal Seam bottom raising mechanism according to claim 1, is characterized in that, the cylinder body of described advancing jack is connected with base, the piston rod of described advancing jack and the rear portion of described pusher rod hinged.
3. Bracket in Thin Coal Seam bottom raising mechanism according to claim 2, is characterized in that, described pusher rod is the entity steel plate that 60 ~ 80mm is thick.
4. a Bracket in Thin Coal Seam, is characterized in that, this Bracket in Thin Coal Seam is provided with the Bracket in Thin Coal Seam bottom raising mechanism described in any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210345649.8A CN102877875B (en) | 2012-09-17 | 2012-09-17 | Thin coal seam support bottom raising mechanism and thin coal seam support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210345649.8A CN102877875B (en) | 2012-09-17 | 2012-09-17 | Thin coal seam support bottom raising mechanism and thin coal seam support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102877875A CN102877875A (en) | 2013-01-16 |
| CN102877875B true CN102877875B (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210345649.8A Expired - Fee Related CN102877875B (en) | 2012-09-17 | 2012-09-17 | Thin coal seam support bottom raising mechanism and thin coal seam support |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265360A (en) * | 2014-09-12 | 2015-01-07 | 洛阳金马电气科技有限公司 | Displacement device of suspension bracket working face scraper |
| CN104500119A (en) * | 2014-12-11 | 2015-04-08 | 中煤北京煤矿机械有限责任公司 | Large-dip-angle thin-coal-seam support anchor structure |
| CN104727838A (en) * | 2015-01-12 | 2015-06-24 | 辽宁工程技术大学 | Hydraulic support of coal mining machine |
| CN105840226B (en) * | 2016-04-29 | 2018-06-26 | 平顶山平煤机煤矿机械装备有限公司 | A kind of coal mine roadway gib hydraulic support with bottom lifting device |
| CN112761688A (en) * | 2021-02-05 | 2021-05-07 | 三一重型装备有限公司 | Bottom lifting device of hydraulic support and hydraulic support |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201288580Y (en) * | 2008-10-23 | 2009-08-12 | 平顶山煤矿机械有限责任公司 | Bottom seat structure for low coal seam mining |
| CN201288581Y (en) * | 2008-10-23 | 2009-08-12 | 平顶山煤矿机械有限责任公司 | Pushing rod for low coal seam mining rack |
| CN102086772B (en) * | 2011-03-22 | 2012-10-03 | 三一重型综采成套装备有限公司 | Hydraulic support and bottom lifting device thereof |
| CN102562111B (en) * | 2011-12-09 | 2015-04-29 | 三一重型综采成套装备有限公司 | Uplifting device and hydraulic support |
| CN202402055U (en) * | 2011-12-21 | 2012-08-29 | 平顶山煤矿机械有限责任公司 | Hydraulic support with bottom lifting device |
| CN202768044U (en) * | 2012-09-17 | 2013-03-06 | 中煤北京煤矿机械有限责任公司 | Thin seam support bottom lifting mechanism and thin seam support |
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- 2012-09-17 CN CN201210345649.8A patent/CN102877875B/en not_active Expired - Fee Related
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