CN201991542U - Hydraulic support bottom raising device and hydraulic support - Google Patents
Hydraulic support bottom raising device and hydraulic support Download PDFInfo
- Publication number
- CN201991542U CN201991542U CN2011201357501U CN201120135750U CN201991542U CN 201991542 U CN201991542 U CN 201991542U CN 2011201357501 U CN2011201357501 U CN 2011201357501U CN 201120135750 U CN201120135750 U CN 201120135750U CN 201991542 U CN201991542 U CN 201991542U
- Authority
- CN
- China
- Prior art keywords
- hydraulic support
- lifting device
- positioning seat
- bottom lifting
- pin
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Types And Forms Of Lifts (AREA)
Abstract
The utility model discloses a hydraulic support bottom raising device, which comprises a hydraulic support base (10) and a bottom raising jack (20). An opposite positioning seat (30) is arranged on the inner side of the hydraulic support base (10), fixing blocks (40) which are locked by pin shafts are disposed in an opening of the positioning seat (30), bumps (20-1) on two sides of the bottom raising jack (20) are located in positioning holes formed by the fixing blocks (40) and the positioning seat (30), are rectangular and are embedded with the positioning holes formed by the fixing blocks (40) and the positioning seat (30) ,the fixing blocks (40) are trapezoidal, and inclined surfaces of the positioning blocks face towards the bottom raising jack (20). The bottom raising device is simple in structure, small in occupied space, reliable in fixation and convenient to be assembled and disassembled, and can meet service requirements of hydraulic supports of low coal seams. The utility model further discloses a hydraulic support provided with the hydraulic support bottom raising device.
Description
Technical field
The utility model relates to the mining machinery technical field, particularly relates to the bottom lifting device of coal mine underground hydraulic support frame.The utility model also relates to the hydraulic support that is provided with described bottom lifting device.
Background technology
Hydraulic support is the important component part of coal mine fully-mechanized mining equipment, it is that power is realized motions such as lifting, reach with hydraulic pressure, can reliably and effectively support and control the top board of work plane, isolate the goaf, prevent that spoil from entering stope and advancing conveyer, with the supporting use of coal-winning machine, realize 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, this Connection Block 2 is hinged with base 4 by the rotating shaft 3 of the right and left, its top board is fixed by 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 by bolt, the piston rod head of lifting end jack 1 during work is supported on the pusher rod 5, realizes lifting of bracket base by 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 the bulk compactness, 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.
The utility model content
First purpose of the present utility model 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 utility model provides a kind of hydraulic support that is provided with above-mentioned bottom lifting device.
For realizing above-mentioned first purpose, the utility model provides a kind of hydraulic support bottom lifting device, comprise hydraulic support foundation and lift end jack, the inboard of described hydraulic support foundation is provided with relative positioning seat, be provided with the fixed block by the bearing pin locking in the opening of described positioning seat, the described projection of lifting jack both sides, the end is arranged in the locating hole of described fixed block and positioning seat formation.
Preferably, the described projection of lifting jack both sides, the end is rectangular, the locating hole tabling that forms with described fixed block and positioning seat.
Preferably, described fixed block is trapezoidal, and its inclined-plane is towards the described end jack of lifting.
Preferably, described positioning seat and fixed block offer pin-and-hole respectively, and described bearing pin is plugged in both corresponding pin-and-holes.
Preferably, described positioning seat is provided with pin socket at its pin-and-hole place, and described bearing pin passes in the pin-and-hole of described pin socket insertion positioning seat and fixed block, and is fastened by " U " shape of inserting described pin socket.
Preferably, described bearing pin is the ladder bearing pin.
Preferably, described positioning seat is " U " shape, and its opening is towards the rear of described hydraulic support foundation.
Preferably, described 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 described upper supporting plate.
Preferably, described positioning seat is fixed in the interior main muscle inboard of described hydraulic support foundation.
For realizing above-mentioned second purpose, the utility model also provides a kind of hydraulic support, comprise bottom lifting device and pusher rod, described bottom lifting device lift the end face that end jack is supported in described pusher rod, described bottom lifting device is specially above-mentioned each described hydraulic support bottom lifting device.
The utility model utilizes the inner space installing and locating seat of hydraulic support foundation and lifts end jack, described both sides of lifting end jack are provided with projection, described positioning seat is provided with opening, the described 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, described 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 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, described fixed block is trapezoidal, and its inclined-plane is towards the described end jack of lifting.Like this, the inclined-plane of two described fixed blocks can form " eight " font structure, distance between its inclined-plane inwardly diminishes gradually, until less than the described diameter of lifting end jack, because the inclined-plane is towards the described 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 utility model 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 provides the vertical view of hydraulic support bottom lifting device for the utility model;
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 utility model 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 utility model 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 utility model scheme better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
The term in expression orientation such as herein " upper and lower, inside and outside " is based on the position relation of accompanying drawing, it should be interpreted as the absolute qualification to protection domain.
Please refer to Fig. 3, Fig. 4, Fig. 5, Fig. 3 provides the vertical view of hydraulic support bottom lifting device for the utility model; 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, the hydraulic support bottom lifting device that the utility model provides 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 in relative mode, lifts end jack 20 between two positioning seats of symmetric arrangement.
Positioning seat 30 can be adopted and be fixed in welded or bolted way on the interior main muscle 10-1, also can be integrally formed with interior main muscle 10-1.
On 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 is towards lifting end jack 20, 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 thereon 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 70 lockings of inserting pin socket 50, 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 fixed block 40 be placed on the lower carrier plate 30-3 that exceeds from top to bottom earlier, and then fixed block 40 pushed in the opening of positioning seat 30 along lower carrier plate 30-3, improved 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 finished 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 successively in the pin-and-hole of pin socket 50, positioning seat 30 and fixed block 40, 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 its middle part is put into and is lifted end jack 20 and fixed block 40, lift end support force and pass to hydraulic support foundation 10 by positioning seat 30, ladder bearing pin 60 only plays the locking effect, as several situations that may 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 the hydraulic support bottom lifting device that the utility model provides 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 utility model purpose.
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 a plurality of part weldings to form replaces positioning seat 30, replaces " U " shape card 70 and pin socket 50, replaces trapezoidal fixed block or use up pin replacing 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 saving length, this paper just illustrates no longer one by one.
Except above-mentioned hydraulic support bottom lifting device, the utility model also provides a kind of hydraulic support, comprise bottom lifting device and pusher rod, described bottom lifting device lift the end face that end jack is supported in described pusher rod, described 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 utility model and hydraulic support are described in detail.Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand core concept of the present utility model.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
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 described hydraulic support foundation (10) is provided with relative positioning seat (30), be provided with the fixed block (40) by the bearing pin locking in the opening of described positioning seat (30), the described projection (20-1) of lifting end jack (20) both sides is arranged in the locating hole of described fixed block (40) and positioning seat (30) formation.
2. hydraulic support bottom lifting device according to claim 1 is characterized in that, the described projection (20-1) of lifting end jack (20) both sides is rectangular, the locating hole tabling that forms with described fixed block (40) and positioning seat (30).
3. hydraulic support bottom lifting device according to claim 1 is characterized in that, described fixed block (40) is trapezoidal, and its inclined-plane is towards the described end jack (20) of lifting.
4. hydraulic support bottom lifting device according to claim 1 is characterized in that, described positioning seat (30) and fixed block (40) offer pin-and-hole respectively, and described 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, described positioning seat (30) is provided with pin socket (50) at its pin-and-hole place, described bearing pin passes in the pin-and-hole of described pin socket (50) insertion positioning seat (30) and fixed block (40), and fixing by " U " shape card (70) that inserts described pin socket (50).
6. hydraulic support bottom lifting device according to claim 5 is characterized in that, described 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 described positioning seat (30) is " U " shape, its opening is towards the rear of described 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 described 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 described upper supporting plate (30-2).
9. hydraulic support bottom lifting device according to claim 7 is characterized in that, described positioning seat (30) is fixed in interior main muscle (10-1) inboard of described hydraulic support foundation (10).
10. a hydraulic support comprises bottom lifting device and pusher rod, described bottom lifting device lift the end face that end jack is supported in described pusher rod, it is characterized in that described 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 |
|---|---|---|---|
| CN2011201357501U CN201991542U (en) | 2011-04-29 | 2011-04-29 | Hydraulic support bottom raising device and hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201357501U CN201991542U (en) | 2011-04-29 | 2011-04-29 | Hydraulic support bottom raising device and hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201991542U true CN201991542U (en) | 2011-09-28 |
Family
ID=44668032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201357501U Expired - Lifetime CN201991542U (en) | 2011-04-29 | 2011-04-29 | Hydraulic support bottom raising device and hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201991542U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128041A (en) * | 2011-04-29 | 2011-07-20 | 三一重型综采成套装备有限公司 | Bottom uplifting device for hydraulic support and hydraulic support |
| CN103046942A (en) * | 2012-12-19 | 2013-04-17 | 三一重型装备有限公司 | Hydraulic support |
| CN105781600B (en) * | 2016-03-10 | 2019-02-01 | 山东能源重装集团鲁南装备制造有限公司 | A kind of hydraulic support |
-
2011
- 2011-04-29 CN CN2011201357501U patent/CN201991542U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128041A (en) * | 2011-04-29 | 2011-07-20 | 三一重型综采成套装备有限公司 | Bottom uplifting device for hydraulic support and hydraulic support |
| CN102128041B (en) * | 2011-04-29 | 2012-12-12 | 三一重型综采成套装备有限公司 | Bottom uplifting device for hydraulic support and hydraulic support |
| CN103046942A (en) * | 2012-12-19 | 2013-04-17 | 三一重型装备有限公司 | Hydraulic support |
| CN105781600B (en) * | 2016-03-10 | 2019-02-01 | 山东能源重装集团鲁南装备制造有限公司 | A kind of hydraulic support |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102128041B (en) | Bottom uplifting device for hydraulic support and hydraulic support | |
| CN201991542U (en) | Hydraulic support bottom raising device and hydraulic support | |
| CN104967018A (en) | Lifting anti-collision power distribution cabinet | |
| CN107059829A (en) | A kind of hydraulic bolt lowering or hoisting gear and self-elevating ocean platform continuously lifted | |
| CN103982141B (en) | A kind of novel rapid transporting drilling machine derrick substructure structure | |
| CN105628422B (en) | A kind of experimental system suitable for bearing pin elevating mechanism | |
| CN205677902U (en) | A kind of underground drill rig support cylinder with energy storage equipment | |
| CN102322281A (en) | Tunnel quick-tunneling advance support integrated device | |
| CN102182487B (en) | Liquid filling hydraulic support | |
| CN201826860U (en) | Novel deformation-resistant mine I-beam bracket | |
| CN101899985B (en) | Hydraulic support | |
| CN202194677U (en) | Bottom uplifting device for hydraulic support and hydraulic support | |
| CN204804865U (en) | From moving formula hydraulic support erection equipment | |
| CN201714410U (en) | Side protection device for detachable hydraulic support base | |
| CN202864784U (en) | Endless rope holding rope wheel set and endless rope winch | |
| CN202273594U (en) | Three-section connecting rod support device for rotary drilling rig | |
| CN201730634U (en) | Hydraulic bracket | |
| CN203130122U (en) | Rail clamping device preventing hydraulic bracket from being derailed | |
| CN203344963U (en) | Mining double-rail car stopper | |
| CN102748054B (en) | Hydraulic bracket pushing mechanism and hydraulic bracket | |
| CN201857965U (en) | Anti-slip device | |
| CN101793123A (en) | Drilling machine three-sliding system of multifunctional self-elevating supporting platform for ocean oil field | |
| CN214997732U (en) | Single-upright-column unit type hydraulic support | |
| CN105221173A (en) | Fully-mechanized mining working two ends crosses freeboard section supporting method | |
| CN217001892U (en) | Folding anchor net surfing device in underground coal mine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110928 Effective date of abandoning: 20130306 |
|
| RGAV | Abandon patent right to avoid regrant |