CN102128041B - Bottom uplifting device for hydraulic support and hydraulic support - Google Patents
Bottom uplifting device for hydraulic support and hydraulic support Download PDFInfo
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- CN102128041B CN102128041B CN 201110111495 CN201110111495A CN102128041B CN 102128041 B CN102128041 B CN 102128041B CN 201110111495 CN201110111495 CN 201110111495 CN 201110111495 A CN201110111495 A CN 201110111495A CN 102128041 B CN102128041 B CN 102128041B
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- positioning seat
- bottom lifting
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Abstract
The invention discloses a bottom uplifting device for a hydraulic support, which comprises a hydraulic support base (10) and a bottom uplifting jack (20), wherein opposite positioning bases (30) are arranged on the inner side of the hydraulic support base (10); fixed blocks (40) locked by a pin shaft are arranged in openings of the positioning bases (30); lugs (20-1) on both sides of the bottom uplifting jack (20) which are in a rectangular shape are positioned in positioning holes formed by the fixed blocks (40) and the positioning bases (30), and are embedded into the positioning holes formed by the fixed blocks (40) and the positioning bases (30); and the fixed blocks (40) are in a trapezoid shape, and the inclined plane of each fixed block faces the bottom uplifting jack (20). The bottom uplifting device has a simple structure and small occupation space, is fixed reliably and convenient to disassemble and assemble, and can meet the using requirement of the hydraulic support in a low coal seam. The invention also discloses the hydraulic support for the bottom uplifting device.
Description
Technical field
The present invention relates to the mining machinery technical field, particularly relate to the bottom lifting device of coal mine underground hydraulic support frame.The invention still further relates to the hydraulic support that is provided with said bottom lifting device.
Background technology
Hydraulic support is the important component part of coal mine fully-mechanized mining equipment, and it is that power is realized motions such as up-down, reach with hydraulic pressure, can reliably and effectively support and control the top board of work plane; Isolate the goaf; Prevent that spoil from getting into stope and advancing conveyer, with the supporting use of coal-winning machine, realizes the coal mining comprehensive mechanization; Roof control lags behind the contradiction of coal work in the solution coal work; Further improve the usefulness of coal mining and haulage device, alleviate the labour intensity of coal miner, ensure the life security of coal miner to greatest extent.
According to the difference of base plate condition, the hydraulic support that has need be provided with bottom lifting device, pricks end problem to solve the support front end that causes because of base plate anti-pressure ability deficiency.
At present, the bottom lifting device that generally adopts mainly contains following two kinds:
Please refer to Fig. 1, Fig. 1 is the structural representation of first kind of bottom lifting device in the prior art.
As shown in the figure, the top of lifting end jack 1 is provided with a connecting seat 2, and this Connection Block 2 is hinged with base 4 through the rotating shaft 3 of the right and left; Its top board is fixed through bolt and the piston rod of lifting end jack 1; The bottom support of lifting end jack 1 when the piston rod of lifting end jack 1 moves up, can upwards be lifted the base 4 of hydraulic support on the pusher rod 5 of hydraulic support; This structure takes up room bigger, generally is applicable to the hydraulic support of medium-thickness seam.
Please refer to Fig. 2, Fig. 2 is the structural representation of second kind of bottom lifting device in the prior art.
As shown in the figure; The periphery of lifting end jack 1 is provided with a sleeve 6; To lift end jack 1 and sleeve 6 is fixed on the preceding gap bridge 4-1 of base 4 through bolt, the piston rod head of lifting end jack 1 during work is supported on the pusher rod 5, realizes lifting of bracket base through stretching out of piston rod.This structure takes up room less, but the dismounting difficulty is not easy to maintenance, generally is used for girdle or medium-thickness seam support.
This shows that the hydraulic support of medium-thickness seam allows because of the space structures size, can arrange bottom lifting device preferably, prick end phenomenon than being easier to solve the bracket base front end.But for the hydraulic support of girdle,, when especially support drops to minimum design height, often do not had to be provided with the space of bottom lifting device because of bulk is compact, can and back timber interfere, even arrange that reluctantly it also is very little lifting end effect.
Therefore, how for hydraulic support for low coal seam is provided with bottom lifting device, be the present technical issues that need to address of those skilled in the art.
Summary of the invention
First purpose of the present invention provides a kind of hydraulic support bottom lifting device.Simple in structure, little, fixing reliable, the easy accessibility that takes up room of this bottom lifting device is applicable to hydraulic support for low coal seam.
Second purpose of the present invention provides a kind of hydraulic support that is provided with above-mentioned bottom lifting device.
For realizing above-mentioned first purpose; The present invention provides a kind of hydraulic support bottom lifting device; Comprise hydraulic support foundation and lift end jack; The inboard of said hydraulic support foundation is provided with relative positioning seat, is provided with the fixed block by the bearing pin locking in the opening of said positioning seat, and the said projection of lifting jack both sides, the end is arranged in the locating hole of said fixed block and positioning seat formation.
Preferably, the said projection of lifting jack both sides, the end is rectangular, the locating hole tabling that forms with said fixed block and positioning seat.
Preferably, said fixed block is trapezoidal, and its inclined-plane is towards the said end jack of lifting.
Preferably, said positioning seat and fixed block offer pin-and-hole respectively, and said bearing pin is plugged in both corresponding pin-and-holes.
Preferably, said positioning seat is provided with pin socket at its pin-and-hole place, and said bearing pin passes in the pin-and-hole of said pin socket insertion positioning seat and fixed block, and is fastened by " U " shape of inserting said pin socket.
Preferably, said bearing pin is the ladder bearing pin.
Preferably, said positioning seat is " U " shape, and its opening is towards the rear of said hydraulic support foundation.
Preferably, said positioning seat comprises side plate and upper supporting plate that is parallel to each other and lower carrier plate, and the length of wherein said lower carrier plate is greater than said upper supporting plate.
Preferably, said positioning seat be fixed in said hydraulic support foundation in main muscle inboard.
For realizing above-mentioned second purpose; The present invention also provides a kind of hydraulic support; Comprise bottom lifting device and pusher rod, said bottom lifting device lift the end face that end jack is supported in said pusher rod, said bottom lifting device is specially above-mentioned each described hydraulic support bottom lifting device.
The present invention utilizes the inner space installing and locating seat of hydraulic support foundation and lifts end jack; Said both sides of lifting end jack are provided with projection; Said positioning seat is provided with opening; The said projection of lifting end jack in the opening of positioning seat of packing into after, be fixed by the fixed block in the positioning seat opening of packing into equally, said fixed block is then locked by bearing pin.Compare with traditional bottom lifting device; Have beneficial effects such as simple in structure, little, fixing reliable, the easy accessibility of taking up room; And it is big to lift end jack effective travel; Act on hydraulic support to lift end effect obvious, fundamentally solved hydraulic support for low coal seam because of the bulk restriction arrange lift end difficulty, not quick detachable maintenance, effectively lift end stroke too small, lift problem such as end poor effect, be specially adapted to hydraulic support for low coal seam.
In a kind of specific embodiment, said fixed block is trapezoidal, and its inclined-plane is towards the said end jack of lifting.Like this; The inclined-plane of two said fixed blocks can form " eight " font structure, and the distance between its inclined-plane inwardly diminishes gradually, until less than the said diameter of lifting end jack; Because the inclined-plane is towards the said end jack of lifting; Therefore limited the degree of freedom of lifting end jack to a certain extent, promptly fixed block compress lift end jack projection in, can also effectively prevent to lift end jack and overturn.
Hydraulic support provided by the present invention is provided with above-mentioned hydraulic support bottom lifting device, because above-mentioned hydraulic support bottom lifting device has above-mentioned technique effect, the hydraulic support with this hydraulic support bottom lifting device also should possess the corresponding techniques effect.
Description of drawings
Fig. 1 is the structural representation of first kind of bottom lifting device in the prior art;
Fig. 2 is the structural representation of second kind of bottom lifting device in the prior art;
Fig. 3 is the vertical view of hydraulic support bottom lifting device provided by the present invention;
Fig. 4 is the A-A view of hydraulic support bottom lifting device shown in Figure 3;
Fig. 5 is the B-B view of hydraulic support bottom lifting device shown in Figure 3;
Fig. 6 is the local enlarged diagram at I position among Fig. 4;
Fig. 7 is the local enlarged diagram at II position among Fig. 3;
Fig. 8 is for lifting the stereogram of end jack shown in Fig. 3.
Among Fig. 1 to Fig. 2:
1. lift preceding 5. pusher rod, 6. sleeves of passing a bridge of end jack 2. Connection Blocks 3. rotating shafts 4. base 4-1.
Among Fig. 3 to Fig. 8:
10. main muscle 20. is lifted end jack 20-1. projection 30. positioning seat 30-1. side plate 30-2. upper supporting plate 30-3. lower carrier plates 40. fixed blocks 50. pin sockets 60. ladder bearing pin 70. " U " shape cards in the hydraulic support foundation 10-1.
The specific embodiment
Core of the present invention is to provide a kind of hydraulic support bottom lifting device.Simple in structure, little, fixing reliable, the easy accessibility that takes up room of this bottom lifting device is applicable to hydraulic support for low coal seam.
Another core of the present invention provides a kind of hydraulic support that is provided with above-mentioned bottom lifting device.
In order to make those skilled in the art person understand the present invention program better, the present invention is done further detailed description below in conjunction with the accompanying drawing and the specific embodiment.
The term in expression orientation such as " upper and lower, inside and outside " among this paper is based on the position relation of accompanying drawing, should it be interpreted as the absolute qualification to protection domain.
Please refer to Fig. 3, Fig. 4, Fig. 5, Fig. 3 is the vertical view of hydraulic support bottom lifting device provided by the present invention; Fig. 4 is the A-A view of hydraulic support bottom lifting device shown in Figure 3; Fig. 5 is the B-B view of hydraulic support bottom lifting device shown in Figure 3.
In a kind of specific embodiment; Hydraulic support bottom lifting device provided by the invention is mainly by hydraulic support foundation 10 and lift end jack 20 and constitute; The inboard of the main within it muscle 10-1 of hydraulic support foundation 10 is fixed with two positioning seats 30 with relative mode, lifts end jack 20 between two positioning seats of symmetric arrangement.
Positioning seat 30 can adopt welding or bolted mode be fixed on the main muscle 10-1, also can be integrally formed with interior main muscle 10-1.
In view of structure; Positioning seat 30 is side direction " U " shape; Its opening is towards the rear of hydraulic support foundation 10, and the upper supporting plate 30-2 and the lower carrier plate 30-3 that comprise side plate 30-1 and be parallel to each other offer the vertical pin-and-hole that is positioned on the same axis on upper supporting plate 30-2 and the lower carrier plate 30-3.
Please refer to Fig. 6, Fig. 7, Fig. 6 is the local enlarged diagram at I position among Fig. 4; Please refer to Fig. 7, Fig. 7 is the local enlarged diagram at II position among Fig. 3.
Two positioning seats 30 dispose fixed block 40 respectively, and on vertical view, fixed block 40 is at right angles trapezoidal, and its inclined-plane also offers the pin-and-hole of up/down perforation towards lifting end jack 20 on the fixed block 40.
The inclined-plane of two fixed blocks 40 can form " eight " font structure; Distance between its inclined-plane inwardly diminishes gradually; Until less than the diameter of lifting end jack 20, because the inclined-plane towards lifting end jack 20, has therefore limited the degree of freedom of lifting end jack 20 to a certain extent; Be fixed block 40 compress lift end jack projection in, can also effectively prevent to lift end jack 20 and overturn.
The positioning seat 30 pin-and-hole place of support plate 30-2 above that is provided with pin socket 50; Ladder bearing pin 60 passes pin socket 50 and inserts in the pin-and-hole of positioning seat 30 and fixed block 40; And by " U " shape card that inserts pin socket 50 70 lockings, thereby fixed block 40 is fixed in the opening of positioning seat 30.
The length of the lower carrier plate 30-3 of positioning seat shown in the figure 30 is greater than upper supporting plate 30-2; With respect to the upper supporting plate 30-2 segment distance that continues to have extended back; When installing and fixing piece 40, because the space in the middle of the hydraulic support foundation is comparatively narrow, the opening of fixed block 40 directly being put into from the side positioning seat 30 has certain difficulty; And adopt after the long structure of lower carrier plate 30-3; Can earlier fixed block 40 be placed on the lower carrier plate 30-3 that exceeds from top to bottom, and then fixed block 40 is pushed in the opening of positioning seat 30 along lower carrier plate 30-3, improve the convenience of dismounting.
Please refer to Fig. 8, Fig. 8 is for lifting the stereogram of end jack shown in Fig. 3.
Lift end jack 20 and be provided with symmetrical rectangle projection 20-1 in the both sides of its stack shell; The shape and size of this projection and fixed block 40 and the rectangle locating hole tabling that positioning seat 30 forms, the projection 20-1 that lifts jack 20 both sides in the end after assembling is accomplished are just in the locating hole between fixed block 40 and positioning seat 30.
Above-mentioned hydraulic support bottom lifting device is when assembling, and the rectangle projection 20-1 that will lift end jack 20 earlier is installed in the inner of positioning seat 30 openings; Then; Push down the rectangle projection 20-1 that lifts end jack 20 with fixed block 40; And the pin-and-hole of fixed block 40 is alignd with the pin-and-hole of positioning seat 30, pin socket 50; Again ladder bearing pin 60 is inserted in the pin-and-hole of pin socket 50, positioning seat 30 and fixed block 40 successively, at last " U " shape card 70 is inserted in the cannelure of ladder bearing pin 60 heads, thereby will lift end jack 20 secure fixation.
Otherwise; Lift the end during jack 20 in dismounting,, therefore only need several simple Plug Actions that " U " shape card 70, ladder bearing pin 60, fixed block 40 are dismantled successively owing to do not adopt bolt to connect; Then, just can take out from positioning seat 30 lifting end jack 20 easily.
The opening of above-mentioned positioning seat 30 is towards the rear of hydraulic support foundation 10; The space that can make full use of the center is put into and is lifted end jack 20 and fixed block 40; Lift end support force and pass to hydraulic support foundation 10 through positioning seat 30; Ladder bearing pin 60 only plays the locking effect, and as several kinds of situations that possibly exist, the opening of positioning seat 30 can also be above or below the hydraulic support foundation 10.
Be not difficult to find out; Compare with traditional bottom lifting device; Beneficial effects such as that hydraulic support bottom lifting device provided by the invention has is simple in structure, it is little to take up room, fixing reliable, easy accessibility, and it is big to lift end jack effective travel, act on hydraulic support to lift end effect obvious; Fundamentally solved hydraulic support for low coal seam because of bulk restriction arrange lift end difficulty, not quick detachable maintenance, effectively lift end stroke too small, lift problem such as end poor effect, be specially adapted to hydraulic support for low coal seam.
This paper does not do qualification to the concrete shape of positioning seat 30, everyly can form locating hole with fixed block 40, and the projection 20-1 that will lift end jack 20 is limited in positioning seat in the locating hole and all can be used for realizing the object of the invention.
Above-mentioned hydraulic support bottom lifting device only is a kind of preferred version; Its concrete structure is not limited thereto; Can make pointed adjustment according to actual conditions on this basis, the member that for example adopts the welding of a plurality of parts to form replaces positioning seat 30, replaces " U " shape card 70 and pin socket 50, replaces trapezoidal fixed block, perhaps uses up pin replacement ladder bearing pin 60 or the like with the rectangle fixed block with " D " shape card or cottor pin.Because mode in the cards is more, for practicing thrift length, this paper just illustrates no longer one by one.
Except above-mentioned hydraulic support bottom lifting device; The present invention also provides a kind of hydraulic support; Comprise bottom lifting device and pusher rod, said bottom lifting device lift the end face that end jack is supported in said pusher rod, said bottom lifting device is specially hydraulic support bottom lifting device mentioned above; All the other structures see also prior art, and this paper repeats no more.
More than hydraulic support bottom lifting device provided by the present invention and hydraulic support have been carried out detailed introduction.Used concrete example among this paper principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand core concept of the present invention.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (10)
1. hydraulic support bottom lifting device; Comprise hydraulic support foundation (10) and lift end jack (20); It is characterized in that; The inboard of said hydraulic support foundation (10) is provided with relative positioning seat (30), is provided with the fixed block (40) by the bearing pin locking in the opening of said positioning seat (30), and the said projection (20-1) of lifting end jack (20) both sides is arranged in the locating hole of said fixed block (40) and positioning seat (30) formation.
2. hydraulic support bottom lifting device according to claim 1 is characterized in that, the said projection (20-1) of lifting end jack (20) both sides is rectangular, the locating hole tabling that forms with said fixed block (40) and positioning seat (30).
3. hydraulic support bottom lifting device according to claim 1 is characterized in that, said fixed block (40) is trapezoidal, and its inclined-plane is towards the said end jack (20) of lifting.
4. hydraulic support bottom lifting device according to claim 1 is characterized in that, said positioning seat (30) and fixed block (40) offer pin-and-hole respectively, and said bearing pin is plugged in both corresponding pin-and-holes.
5. hydraulic support bottom lifting device according to claim 4; It is characterized in that; Said positioning seat (30) is provided with pin socket (50) at its pin-and-hole place; Said bearing pin passes in the pin-and-hole of said pin socket (50) insertion positioning seat (30) and fixed block (40), and fixing by " U " shape card (70) that inserts said pin socket (50).
6. hydraulic support bottom lifting device according to claim 5 is characterized in that, said bearing pin is ladder bearing pin (60).
7. according to each described hydraulic support bottom lifting device of claim 1 to 6, it is characterized in that said positioning seat (30) is " U " shape, its opening is towards the rear of said hydraulic support foundation (10).
8. hydraulic support bottom lifting device according to claim 7; It is characterized in that; Upper supporting plate (30-2) and lower carrier plate (30-3) that said positioning seat (30) comprises side plate (30-1) and is parallel to each other, the length of wherein said lower carrier plate (30-3) is greater than the length of said upper supporting plate (30-2).
9. hydraulic support bottom lifting device according to claim 7 is characterized in that, said positioning seat (30) be fixed in said hydraulic support foundation (10) in main muscle (10-1) inboard.
10. a hydraulic support comprises bottom lifting device and pusher rod, said bottom lifting device lift the end face that end jack is supported in said pusher rod, it is characterized in that said bottom lifting device is specially aforesaid right requirement 1 to 9 each described hydraulic support bottom lifting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110111495 CN102128041B (en) | 2011-04-29 | 2011-04-29 | Bottom uplifting device for hydraulic support and hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110111495 CN102128041B (en) | 2011-04-29 | 2011-04-29 | Bottom uplifting device for hydraulic support and hydraulic support |
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| CN102128041A CN102128041A (en) | 2011-07-20 |
| CN102128041B true CN102128041B (en) | 2012-12-12 |
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| CN 201110111495 Active CN102128041B (en) | 2011-04-29 | 2011-04-29 | Bottom uplifting device for hydraulic support and hydraulic support |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748054B (en) * | 2012-07-03 | 2014-08-13 | 三一重型装备有限公司 | Hydraulic bracket pushing mechanism and hydraulic bracket |
| CN109595021B (en) * | 2018-11-07 | 2020-05-05 | 郑州煤矿机械集团股份有限公司 | Hydraulic support bottom lifting mechanism for coal fully-mechanized mining face |
| CN110792465B (en) * | 2019-11-08 | 2021-05-18 | 安徽省矿业机电装备有限责任公司 | Jack positioning method for mining support |
| CN113006851B (en) * | 2021-03-19 | 2022-12-06 | 中煤科工开采研究院有限公司 | Mining hydraulic support limiting pushing mechanism |
| CN113914916A (en) * | 2021-10-11 | 2022-01-11 | 新能矿业有限公司 | Scalable floated fixed cylinder |
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| RU2012819C1 (en) * | 1992-07-15 | 1994-05-15 | Вячеслав Викторович Вавилов | Device for raising base of powered support unit |
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| CN201546744U (en) * | 2009-12-11 | 2010-08-11 | 兖州煤业股份有限公司 | Bottom lifting device of hydraulic bracket of thin coal seam |
| CN201714416U (en) * | 2010-05-31 | 2011-01-19 | 三一重型装备有限公司 | Full-mechanized hydraulic support floating type bottom lifting device |
| CN201991542U (en) * | 2011-04-29 | 2011-09-28 | 三一重型综采成套装备有限公司 | Hydraulic support bottom raising device and hydraulic support |
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| RU2012819C1 (en) * | 1992-07-15 | 1994-05-15 | Вячеслав Викторович Вавилов | Device for raising base of powered support unit |
| RU2234607C2 (en) * | 2002-08-30 | 2004-08-20 | Открытое акционерное общество "Подмосковный научно-исследовательский и проектно-конструкторсккий угольный институт" | Advancing mechanism for support and conveyer section |
| CN201381869Y (en) * | 2009-03-31 | 2010-01-13 | 郑州煤机综机设备有限公司 | Bottom lifting mechanism of hydraulic support |
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Effective date of registration: 20160817 Address after: 413000 Yiyang high tech Zone in the eastern part of the New District of integrated services building, Room 502, Hunan Patentee after: Yiyang science and Technology Achievement Transformation Service Center Patentee after: Sany Heavy Integrated Coal Mining Equipment Co.,Ltd. Address before: 110027 No. 16 street, development road, Shenyang economic and Technological Development Zone, Liaoning Patentee before: Sany Heavy Integrated Coal Mining Equipment Co.,Ltd. |