CN201386566Y - Translation upper beam hydraulic bracket - Google Patents
Translation upper beam hydraulic bracket Download PDFInfo
- Publication number
- CN201386566Y CN201386566Y CN200920145029U CN200920145029U CN201386566Y CN 201386566 Y CN201386566 Y CN 201386566Y CN 200920145029 U CN200920145029 U CN 200920145029U CN 200920145029 U CN200920145029 U CN 200920145029U CN 201386566 Y CN201386566 Y CN 201386566Y
- Authority
- CN
- China
- Prior art keywords
- back timber
- sides
- upper beam
- sleeve
- pair
- 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 - Fee Related
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Abstract
A translation upper beam hydraulic bracket comprises three upper beams which are a middle upper beam, a left upper beam on the left side of the middle upper beam, and a right upper beam on the right side of the middle upper beam; a difunctional fluid cylinder supporting pillar is arranged below each upper beam; a difunctional propeller hydraulic cylinder is arranged in the middle upper beam; the back end of the propeller hydraulic cylinder is fixedly connected with the middle upper beam, and the front end thereof is connected with a horizontal sliding pair; the lower part of the horizontal sliding pair is connected with a cross beam through a sleeve set; the lower parts at the front ends of the left and the right upper beams on the two sides are also connected with the cross beam through sleeve sets; and the lateral parts of the left and the right upper beams on the two sides are movably connected with two sides of the middle upper beam through connection devices with sliding pairs. The bracket has the advantages of solid structure, simple and convenient operation, and reduced operation program, and can accelerate advance speed.
Description
Technical field
The utility model relates to a kind of support apparatus of stope working surface of coal mines, particularly relates to a kind of translation top beam hydraulic rack.
Background technology
Stope working surface of coal mines is the important step that is related to coal miner's life security to support system, at present the actual mining face portion of the medium-sized mine of China adopts little back timber and hydraulic prop to be combined into so-called mining coal work face to carry out back production, this support system poor stability, labor strength is big, China develops the light-duty hydraulic prop for sliding mine caps of several automatic moving types at the initial stage eighties, play due effect to promoting coal production, but also expose weak point, poor as the support guidance quality, easily sideslip brings certain difficulty to production, use inconvenience, efficient is lower, the inventor is in the patent of oneself having declared, the patent No. is ZL 200520001116.3, and the patent and the patent No. that name is called " three top beam hydraulic racks " are ZL 200520144945.7, and name is called on the patent basis of " combination hydraulic prop for sliding mine caps ", it is more effective to develop another kind, uses more convenient New-support flexibly.
The utility model content
The purpose of this utility model is a kind of more effective in conjunction with my original two patents proposition, uses the more convenient top beam hydraulic rack of translation flexibly.
The technical solution of the utility model is: a kind of translation top beam hydraulic rack, back timber and the left and right back timber that is positioned at its both sides totally three back timbers in the middle of comprising, be equipped with double acting supporting cylinder pillar under each back timber, be provided with double acting PF cylinder pressure in the back timber in the middle of described, fixedly connected with middle back timber in the rear end of this PF cylinder pressure, the front end connection moves horizontally pair, and this moves horizontally secondary bottom and is connected with crossbeam by sleeve is secondary; The front end bottom of the left and right sides back timber of both sides also is connected with crossbeam by sleeve is secondary, and the sidepiece of the left and right sides back timber of both sides flexibly connects by the linkage of band sliding pair and the both sides of middle back timber.
Described band sliding pair linkage is dual-purpose connecting rod, back timber in the middle of the rear end of the left and right sides back timber of both sides connects by this dual-purpose connecting rod, and described dual-purpose connecting rod one end is a slide block, the other end is a sleeve; The sidepiece of back timber is provided with the slide rail that mates with described slide block in the middle of described, and described slide block is installed in and forms the horizontal movement pair in the slide rail; The sidepiece of described left and right sides back timber is provided with the guide pin bushing frame that is connected with described sleeve coupling, and the guide pin bushing frame is connected by being through its inner axis of guide with sleeve, forms the vertical motion pair.
The described preceding beam of secondary preceding connection that moves horizontally.
Supporting cylinder quantity in the middle of described under the back timber and the width of middle back timber coupling can be four or a plurality of.
The beneficial effects of the utility model
The sidepiece of the left and right sides back timber of the both sides of this translation top beam hydraulic rack flexibly connects by the linkage of band sliding pair and the both sides of middle back timber, make to form between two curb girders and the middle back timber and vertically be connected with two sliding pairs of level, guidance quality when having improved slippage and flexibility, and this support is firm in structure, simple to operation, reduce operation sequence, can accelerate fltting speed.
This translation top beam hydraulic rack combines the advantage of ZL 200520001116.3 and 200520144945.7 two patents of ZL, has saved a hydraulic cylinder, simplifies the structure, and has reduced cost.
Description of drawings
Fig. 1 is the structural representation of this translation top beam hydraulic rack
Fig. 2 be Fig. 1 the A-A cross-sectional view two
The specific embodiment
Embodiment: referring to Fig. 1, Fig. 2, a kind of translation top beam hydraulic rack among the figure, back timber 2 and the left and right back timber 1 and 3 that is positioned at its both sides totally three back timbers in the middle of comprising, being equipped with double acting supporting cylinder pillar 13 under each back timber, being provided with double acting PF cylinder pressure 9 in the described middle back timber 2, fixedlys connected with middle back timber 2 in the rear end of this PF cylinder pressure 9, front end connects and to move horizontally secondaryly 15, and this moves horizontally secondary 15 bottoms and is connected with crossbeam 4 by sleeve secondary 14; The left and right sides back timber 1 of both sides and 3 front end bottom also are connected with crossbeam 4 by sleeve secondary 14, the left and right sides back timber 1 of both sides and 3 sidepiece by being with sliding pair linkage and the both sides flexible connection of middle back timber 2.Described band sliding pair linkage is dual-purpose connecting rod 8, and the left and right sides back timber 1 of both sides is connected middle back timber 2 with 3 rear end by this dual-purpose connecting rod 8, and described dual-purpose connecting rod one end is a slide block 8, and the other end is a sleeve 10; The sidepiece of back timber 2 is provided with the slide rail that mates with described slide block in the middle of described, and described slide block 7 is installed in and forms the horizontal movement pair in the slide rail; Described left and right sides back timber 1 is provided with the guide pin bushing frame 11 that is connected with described sleeve 10 couplings with 3 sidepiece, and guide pin bushing frame 11 is connected by being through its inner axis of guide 12 with sleeve 10, formation vertical motion pair.The described preceding beam 5 of secondary 15 preceding connections that moves horizontally.Supporting cylinder 13 quantity in the middle of described under the back timber 2 and the width of middle back timber 2 coupling can be four or a plurality of.
The course of work of this translation top beam hydraulic rack:
Elder generation is with the supporting cylinder pillar unloading of the left and right sides back timber of both sides, and this moment, two curb girders moved down by vertical slippage pair, back timber roof supporting in the middle of only staying; Pressurised driving PF cylinder pressure drives two left and right sides curb girders and moves forward a step pitch by moving horizontally pair, sleeve, crossbeam, simultaneously in the middle of preceding beam in the back timber step pitch that also moves forward, play the effect of protecting top board.
After finishing etc. above-mentioned action, load the supporting cylinder pillar of the left and right sides, both sides back timber, make the left and right sides back timber roof supporting of both sides, supporting cylinder with middle back timber supports unloading then, back timber moves down by vertical slippage pair in the middle of making, drive the PF cylinder pressure, make the piston rod withdrawal drive step pitch of middle back timber reach, beam is regained synchronously simultaneously, the supporting cylinder pillar of back timber in the middle of loading at last, the back timber roof supporting is so far finished the complete routine that this translation top beam hydraulic rack is pushed ahead in the middle of making.
Claims (4)
1, a kind of translation top beam hydraulic rack, back timber and the left and right back timber that is positioned at its both sides totally three back timbers in the middle of comprising, be equipped with double acting supporting cylinder pillar under each back timber, it is characterized in that: be provided with double acting PF cylinder pressure in the back timber in the middle of described, fixedly connected with middle back timber in the rear end of this PF cylinder pressure, the front end connection moves horizontally pair, and this moves horizontally secondary bottom and is connected with crossbeam by sleeve is secondary; The front end bottom of the left and right sides back timber of both sides also is connected with crossbeam by sleeve is secondary, and the sidepiece of the left and right sides back timber of both sides flexibly connects by the linkage of band sliding pair and the both sides of middle back timber.
2, translation top beam hydraulic rack according to claim 1, it is characterized in that: described band sliding pair linkage is dual-purpose connecting rod, back timber in the middle of the rear end of the left and right sides back timber of both sides connects by this dual-purpose connecting rod, described dual-purpose connecting rod one end is a slide block, the other end is a sleeve; The sidepiece of back timber is provided with the slide rail that mates with described slide block in the middle of described, and described slide block is installed in and forms the horizontal movement pair in the slide rail; The sidepiece of described left and right sides back timber is provided with the guide pin bushing frame that is connected with described sleeve coupling, and the guide pin bushing frame is connected by being through its inner axis of guide with sleeve, forms the vertical motion pair.
3, translation top beam hydraulic rack according to claim 1 is characterized in that: the described preceding beam of secondary preceding connection that moves horizontally.
4, translation top beam hydraulic rack according to claim 1 is characterized in that: supporting cylinder quantity in the middle of described under the back timber and the width of middle back timber coupling can be four or a plurality of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920145029U CN201386566Y (en) | 2009-03-04 | 2009-03-04 | Translation upper beam hydraulic bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920145029U CN201386566Y (en) | 2009-03-04 | 2009-03-04 | Translation upper beam hydraulic bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201386566Y true CN201386566Y (en) | 2010-01-20 |
Family
ID=41579099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920145029U Expired - Fee Related CN201386566Y (en) | 2009-03-04 | 2009-03-04 | Translation upper beam hydraulic bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201386566Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233760A (en) * | 2013-04-25 | 2013-08-07 | 山西东华机械有限公司 | Self-propelled rack |
| CN105422155A (en) * | 2015-12-31 | 2016-03-23 | 北京华创矿安科技有限公司 | Differential protection rod type hydraulic support |
-
2009
- 2009-03-04 CN CN200920145029U patent/CN201386566Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233760A (en) * | 2013-04-25 | 2013-08-07 | 山西东华机械有限公司 | Self-propelled rack |
| CN105422155A (en) * | 2015-12-31 | 2016-03-23 | 北京华创矿安科技有限公司 | Differential protection rod type hydraulic support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100120 Termination date: 20140304 |