CN202768044U - Thin seam support bottom lifting mechanism and thin seam support - Google Patents
Thin seam support bottom lifting mechanism and thin seam support Download PDFInfo
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- CN202768044U CN202768044U CN 201220475362 CN201220475362U CN202768044U CN 202768044 U CN202768044 U CN 202768044U CN 201220475362 CN201220475362 CN 201220475362 CN 201220475362 U CN201220475362 U CN 201220475362U CN 202768044 U CN202768044 U CN 202768044U
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- bottom lifting
- base
- bracket
- lifting
- jack
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Abstract
The utility model discloses a thin seam support bottom lifting mechanism and a thin seam support, wherein two bottom lifting levers and two bottom lifting jacks are arranged in a split-type base seat; first reamed holes are arranged in the middle of the two bottom lifting levers, second reaming holes are arranged on the rear portion of the two bottom lifting levers, and the front ends of the two bottom lifting levers are of an arc shape and are located above a thrust bar. A gap bridge is provided with two first lug plates; a group of hinge lugs is formed by each first lug plate and main ribs in base seat on an adjacent side; each group of hinge lugs is respectively hinged with one first reamed hole in the middle of the bottom lifting levers; second lug plates are respectively arranged in the middle of main ribs in base seat on two sides, the front end of each bottom lifting jack is respectively connected with one second hinge hole on the rear portions of the bottom lifting levers; the rear end of each bottom lifting jack is respectively connected with one second lug plate. Through liquid inlet and liquid return of an upper cavity and a lower cavity of each bottom lifting jack, the two bottom lifting levers are supported and drawn back, bottom lifting and falling back of the thin seam support are achieved, smooth transfer and smooth pushed sliding of the thin seam support are ensured, little structure space of the thin seam support is fully used, and meanwhile the thin seam support is provided with enough capacity for bottom lifting.
Description
Technical field
The utility model relates to a kind of hydraulic support of thin coal bed fully-mechanized mining face, relates in particular 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 that has take mud stone as main, during water-swellable, hydraulic support often can not move frame smoothly, and Bracket in Thin Coal Seam restricts owing to factors such as being subjected to support height, can't be as support with great mining height, bottom lifting device is set easily, moves frame after making support lift the end.
The utility model content
The purpose of this utility model provides a kind of Bracket in Thin Coal Seam bottom raising mechanism and Bracket in Thin Coal Seam of applicable Bracket in Thin Coal Seam.
The purpose of this utility model is achieved through the following technical solutions:
Bracket in Thin Coal Seam bottom raising mechanism of the present utility model, the base that comprises split, the front portion of the base of split connects by passing a bridge, the rear portion connects by high-strength plate, be provided with pusher rod and advancing jack between the base of split, also be provided with two between the base of split and lift bottom bar and two and lift end jack, described middle part of lifting bottom bar is provided with the first fraising, rear portion to be provided with the second fraising, front end is circular-arc and be positioned at the top of described pusher rod;
Described gap bridge is provided with two the first otic placodes, every the first otic placode respectively with the base of sides adjacent in main muscle form one group of hinged ear, every group of hinged ear is hinged with first fraising of lifting the bottom bar middle part respectively, the middle part of main muscle is respectively equipped with the second otic placode in the base of both sides, each front end of lifting end jack is hinged with second fraising of lifting the bottom bar rear portion respectively, and it is hinged with second otic placode respectively that each lifts the rear end of end jack.
Bracket in Thin Coal Seam of the present utility model, this Bracket in Thin Coal Seam are provided with above-mentioned Bracket in Thin Coal Seam bottom raising mechanism.
Can be found out Bracket in Thin Coal Seam bottom raising mechanism and Bracket in Thin Coal Seam that the utility model embodiment provides by the technical scheme that above-mentioned the utility model provides.Lift bottom bar and two and lift end jack owing to also be provided with two between the base of split, described middle part of lifting bottom bar is provided with the first fraising, rear portion to be provided with the second fraising, front end is circular-arc and be positioned at the top of described pusher rod; Described gap bridge is provided with two the first otic placodes, every the first otic placode respectively with the base of sides adjacent in main muscle form one group of hinged ear, every group of hinged ear is hinged with first fraising of lifting the bottom bar middle part respectively, the middle part of main muscle is respectively equipped with the second otic placode in the base of both sides, each front end of lifting end jack is hinged with second fraising of lifting the bottom bar rear portion respectively, and it is hinged with second otic placode respectively that each lifts the rear end of end jack.By lifting the liquid that advances back of end jack upper and lower cavity, make and lift bottom bar and prop up and regain, can realize lifting the end, falling action after rise of support, guarantee that support moves frame and pushing and sliding smoothly, take full advantage of the few structure space of Bracket in Thin Coal Seam, make simultaneously support have enough end abilities of lifting.
Description of drawings
The structural representation of the Bracket in Thin Coal Seam bottom raising mechanism that Fig. 1 a provides for the utility model embodiment;
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 of lifting bottom bar among the utility model embodiment;
Fig. 2 b is the plane structure schematic diagram of lifting bottom bar among the utility model embodiment;
Fig. 3 a is the overall structure schematic diagram of base among the utility model embodiment;
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 among the utility model embodiment;
Fig. 4 b is the plane structure schematic diagram of pusher rod among the utility model embodiment;
Fig. 5 a is the passing view at the end of lifting of supposing among the utility model embodiment;
Fig. 5 b is that the C-C of Fig. 5 a is to sectional view;
Fig. 6 is that the utility model embodiment medium-height trestle is lifted end view.
Among the 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, 12, the third ear plate, A, the first fraising, B, the second fraising.
The specific embodiment
The below will be described in further detail the utility model embodiment.
Bracket in Thin Coal Seam bottom raising mechanism of the present utility model, its better specific embodiment is:
The base that comprises split, the front portion of the base of split connects by passing a bridge, the rear portion connects by high-strength plate, be provided with pusher rod and advancing jack between the base of split, it is characterized in that, also be provided with two between the base of split and lift bottom bar and two and lift end jack, described middle part of lifting bottom bar is provided with the first fraising, rear portion to be provided with the second fraising, front end is circular-arc and be positioned at the top of described pusher rod;
Described gap bridge is provided with two the first otic placodes, every the first otic placode respectively with the base of sides adjacent in main muscle form one group of hinged ear, every group of hinged ear is hinged with first fraising of lifting the bottom bar middle part respectively, the middle part of main muscle is respectively equipped with the second otic placode in the base of both sides, each front end of lifting end jack is hinged with second fraising of lifting the bottom bar rear portion respectively, and it is hinged with second otic placode respectively that each lifts the rear end of end jack.
The described bottom bar of lifting is welded by two gussets and a fagging, described fagging is clipped in the middle of two gussets, described the first fraising of lifting bottom bar middle part is passed second fraising at two gussets and fagging, rear portion and is passed two gussets, and the rear portion of described two gussets is bent upwards.
The cylinder body of described advancing jack links to each other with base, and the piston rod of described advancing jack and the rear portion of described pusher rod are hinged.
Described pusher rod is the entity steel plate of 60～80mm.
Bracket in Thin Coal Seam of the present utility model, its better specific embodiment is:
This Bracket in Thin Coal Seam is provided with above-mentioned Bracket in Thin Coal Seam bottom raising mechanism.
Implementation for example Fig. 1 a is extremely shown in Figure 6:
Shown in Fig. 1 a, 1b, for base with lift the end, thrust gear assembling relationship figure, comprise that mainly base 1, two lift bottom bar 2, two and lift end jack 3, pusher rod 4, advancing jack 5.
Shown in Fig. 2 a, 2b, to lift bottom bar 2 and mainly be welded by 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, this is organized second on hinged ear fraising B and lifts end jack 3(such as Fig. 1 a, 1b) piston rod hinged, lift the first fraising A and base 1(such as Fig. 1 a, 1b of bottom bar 2) two groups of hinged ears of anterior gap bridge are hinged.
Shown in Fig. 3 a, 3b, base 1 is the bottom opened Split type structure, and there is the connection of gap bridge the front portion, and the rear portion has high-strength plate to connect, and integral body is the bilateral symmetry structure.There is the first otic placode 9 at anterior gap bridge place, and the front portion of main muscle 8 is provided with circular hole in the base, and the two forms one group of hinged ear, and this is organized hinged ear and is connected by bearing pin with above-mentioned the first fraising A that lifts bottom bar 2.Welding the second otic placode 10 in the outside, the middle part of main muscle 8 in the base, this second otic placode 10 with lift end jack 3(such as Fig. 1 a, 1b) cylinder bottom hinged.The rear outside of main muscle 8 also is welded with holder 11, this holder 11 and advancing jack 5(such as Fig. 1 a, 1b in the base) gudgeon of cylinder body is connected.
Shown in Fig. 4 a, 4b, the pusher rod body of rod is the entity steel plate of a 70mm, this steel plate thickness 60～80mm all can, this example is 70mm.Pusher rod is anterior to be connected with transporter, there is one group of third ear plate 12 at the rear portion, this group third ear plate 12 and advancing jack 5(such as Fig. 1 a, 1b) piston rod hinged, and the overall width of this group third ear plate can be lifted end jack and two two smoothly and lift between bottom bar by (such as Fig. 5 a, 5b) to guarantee this group third ear plate less than such as two inner widths of lifting end jack and lifting bottom bar among Fig. 1 a, the 1b under the effect of advancing jack.
Shown in Fig. 5 a, 5b, during use, suppose that original state is that pusher rod is in the state of stretching out.
As shown in Figure 6, when lifting end jack 3 cavity of resorption feed liquor, the piston rod of lifting end jack 3 stretches out, drive is lifted the front end of bottom bar 2 take the first fraising A as axially lower rotation, and overwhelm gradually on the pusher rod 4, continue to stretch out along with lifting very heavy 3 tops, the end, lift bottom bar 2 and be rotated further, and base 1 front end is propped up 50～70mm the most at last, and this example is propped up and highly is 60mm.
Then advancing jack 5 epicoele feed liquors, support is drawn in, and two lift bottom bar 2 slides in pusher rod 4.After support is drawn and moves on to the position, lift end jack 3 epicoele feed liquors, lift bottom bar 2 and regain, advancing jack 4 cavity of resorption feed liquors then, above-mentioned original state is got back to again in the support pushing and sliding, enters next working cycles.
In the utility model, lift bottom structure and be symmetrically arranged, and make two to lift end jack simultaneously feed liquor or time liquid by HYDRAULIC CONTROL SYSTEM, guaranteed the stable type of support; Adopt two less cylinder diameters lift end jack---this example cylinder diameter φ 63, take full advantage of the few structure space of Bracket in Thin Coal Seam, make simultaneously support have enough end abilities of lifting.
The above; it only is the better specific embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (5)
1. Bracket in Thin Coal Seam bottom raising mechanism, the base that comprises split, the front portion of the base of split connects by passing a bridge, the rear portion connects by high-strength plate, be provided with pusher rod and advancing jack between the base of split, it is characterized in that, also be provided with two between the base of split and lift bottom bar and two and lift end jack, described middle part of lifting bottom bar is provided with the first fraising, rear portion to be provided with the second fraising, front end is circular-arc and be positioned at the top of described pusher rod;
Described gap bridge is provided with two the first otic placodes, every the first otic placode respectively with the base of sides adjacent in main muscle form one group of hinged ear, every group of hinged ear is hinged with first fraising of lifting the bottom bar middle part respectively, the middle part of main muscle is respectively equipped with the second otic placode in the base of both sides, each front end of lifting end jack is hinged with second fraising of lifting the bottom bar rear portion respectively, and it is hinged with second otic placode respectively that each lifts the rear end of end jack.
2. Bracket in Thin Coal Seam bottom raising mechanism according to claim 1, it is characterized in that, the described bottom bar of lifting is welded by two gussets and a fagging, described fagging is clipped in the middle of two gussets, described the first fraising of lifting bottom bar middle part is passed second fraising at two gussets and fagging, rear portion and is passed two gussets, and the rear portion of described two gussets is bent upwards.
3. Bracket in Thin Coal Seam bottom raising mechanism according to claim 2 is characterized in that, the cylinder body of described advancing jack links to each other with base, and the piston rod of described advancing jack and the rear portion of described pusher rod are hinged.
4. Bracket in Thin Coal Seam bottom raising mechanism according to claim 3 is characterized in that, described pusher rod is the entity steel plate of 60～80mm.
5. a Bracket in Thin Coal Seam is characterized in that, this Bracket in Thin Coal Seam is provided with each described Bracket in Thin Coal Seam bottom raising mechanism of claim 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220475362 CN202768044U (en) | 2012-09-17 | 2012-09-17 | Thin seam support bottom lifting mechanism and thin seam support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220475362 CN202768044U (en) | 2012-09-17 | 2012-09-17 | Thin seam support bottom lifting mechanism and thin seam support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202768044U true CN202768044U (en) | 2013-03-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220475362 Withdrawn - After Issue CN202768044U (en) | 2012-09-17 | 2012-09-17 | Thin seam support bottom lifting mechanism and thin seam support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202768044U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877875A (en) * | 2012-09-17 | 2013-01-16 | 中煤北京煤矿机械有限责任公司 | Thin coal seam support bottom raising mechanism and thin coal seam support |
| CN109356633A (en) * | 2018-11-09 | 2019-02-19 | 天地科技股份有限公司 | A kind of bottom lifting mechanism of hydraulic support |
-
2012
- 2012-09-17 CN CN 201220475362 patent/CN202768044U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877875A (en) * | 2012-09-17 | 2013-01-16 | 中煤北京煤矿机械有限责任公司 | Thin coal seam support bottom raising mechanism and thin coal seam support |
| CN109356633A (en) * | 2018-11-09 | 2019-02-19 | 天地科技股份有限公司 | A kind of bottom lifting mechanism of hydraulic support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130306 Effective date of abandoning: 20150708 |
|
| RGAV | Abandon patent right to avoid regrant |