CN101526005A - Skid shoe type bottom raising mechanism of hydraulic support - Google Patents
Skid shoe type bottom raising mechanism of hydraulic support Download PDFInfo
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- CN101526005A CN101526005A CN200910020442A CN200910020442A CN101526005A CN 101526005 A CN101526005 A CN 101526005A CN 200910020442 A CN200910020442 A CN 200910020442A CN 200910020442 A CN200910020442 A CN 200910020442A CN 101526005 A CN101526005 A CN 101526005A
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- jack
- hydraulic support
- bottom raising
- skid shoe
- raising mechanism
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Abstract
The invention discloses a skid shoe type bottom raising mechanism of a hydraulic support, which comprises a bottom raising jack and a top frame, wherein the upper part of the bottom raising jack is connected with the top frame which is connected with a base of the hydraulic support, a push rod is arranged under the bottom raising jack, and the lower part of the bottom raising jack is provided with a skid shoe which is used for reducing a friction coefficient when the bottom raising jack is in contact with the push rod. When the skid shoe moves the hydraulic support, the friction coefficient of the contact surface of the skid shoe and the push rod is smaller, push power for pushing the jack to move the hydraulic support is reduced, consequently, a horizontal component which acts on the bottom raising jack is reduced, and the service life of the whole bottom raising mechanism is prolonged.
Description
Technical field
The present invention relates to coal mine fully-mechanized mining working corollary equipment hydraulic support, particularly the bottom raising mechanism of hydraulic support.
Background technology
Hydraulic support uses very frequent at coal mine fully-mechanized mining working.Big or its residing work plane base plate is soft when hydraulic support deadweight, hydraulic support foundation easily is absorbed in base plate, can occur when moving frame gnawing end phenomenon, causes moving difficulty.Can use bottom raising mechanism this moment, and traditional bottom raising mechanism comprises lifts end jack and push rod, lifts end jack elongation, with the push rod of lifting jack below, the end is fulcrum, to lift on the hydraulic support foundation,, make hydraulic support move smoothly then by passing the jack effect.In moving the frame process, the frictional force of lifting between end jack and the push rod is very big, passes jack and be that to overcome this frictional force very big to the horizontal component of lifting end jack, causes to lift end jack and be very easy to damage, and application life is shorter.Secondly, above-mentioned bottom raising mechanism, lifting end jack is that plane contact is connected with upper frame, when making that lifting the end jack strain occurs in the course of the work, the mating face force-bearing situation worsens, thereby does not reach due functional performance.
Summary of the invention
The object of the present invention is to provide a kind of skid shoe type bottom raising mechanism, the frictional force that this kind bottom raising mechanism is lifted between end jack and the push rod is little, lifts end jack long service life.
The technical solution that the present invention adopts for achieving the above object is:
The skid shoe type bottom raising mechanism of hydraulic support, comprise lift end jack with lift the upper frame that jack top, the end is connected, upper frame is connected with the base of hydraulic support, lifts jack below, the end and is provided with push rod; The piston shoes of friction factor when the bottom of lifting end jack is provided for reducing to lift end jack and contacts with push rod.
Above-mentioned piston shoes are with to lift end jack hinged, and piston shoes are by two vertical bearing pins and cooperate R type pin and lift end jack and be connected.
Above-mentioned piston shoes bottom is a smooth surface, and the rear and front end is upturned.
Above-mentioned end of lifting end jack piston rod is a sphere, with between the upper frame ball-and-socket for sphere contacts, and connect with bolt; Upper frame ball-and-socket diameter is slightly less than the diameter of piston rod end sphere, makes the contact site leave the gap of stressed back strain.
The above-mentioned base of lifting the jack left and right sides, the end is provided with the spill slideway of vertical direction, and the protuberance of lifting the jack left and right sides, the end is embedded in the spill slideway.
Above-mentioned upper frame is connected with the base of hydraulic support by two horizontal bearing pins.
Beneficial effect of the present invention:
1, this kind skid shoe type bottom raising mechanism lift jack bottom, end band one piston shoes, piston shoes with lift end jack and adopt the mode that is articulated and connected.These piston shoes are in moving the frame process, and friction factor is very little between the contact surface of piston shoes and push rod, pass jack and move the required thrust of hydraulic support and diminish, and then act on and lift that horizontal component reduces on the end jack, and prolonged the application life of whole bottom raising mechanism.
2, the end of lifting end jack piston rod is a sphere, with between the upper frame ball-and-socket for sphere contacts, and connect with bolt; Upper frame ball-and-socket diameter is slightly less than the diameter of piston rod end sphere, make the contact site leave the gap of stressed back strain, making that the mating face is whole stressedly evenly prevents the structural deterioration that causes because of pressure is excessive, has satisfied the high strength of bottom raising mechanism, the job requirement of high reliability.
Description of drawings
Fig. 1 is the structural representation of the skid shoe type bottom raising mechanism of hydraulic support;
Fig. 2 is the lateral view of Fig. 1;
Fig. 3 be among Fig. 2 A to the enlarged diagram of structure.
The present invention is described in detail below in conjunction with accompanying drawing:
The specific embodiment
In conjunction with Fig. 1, Fig. 2, Fig. 3, the skid shoe type bottom raising mechanism of hydraulic support, comprise lift end jack 1 with lift the upper frame 2 that jack top, the end is connected, the end of lifting end jack piston rod 3 is a sphere, with engage for sphere between the upper frame ball-and-socket, and connect with bolt 4, upper frame ball-and-socket diameter is slightly less than the diameter of piston rod end sphere, makes the contact site leave the gap of stressed back strain.Upper frame 2 is connected with the base 6 of hydraulic support by two horizontal bearing pins 5, lifts jack below, the end and is provided with push rod 7.The piston shoes 8 of friction factor when the bottom of lifting end jack 1 is provided for reducing to lift end jack and contacts with push rod, piston shoes 8 bottoms are smooth surface, the rear and front end is upturned.Piston shoes 8 are with to lift end jack hinged, and piston shoes 8 are by two vertical bearing pins 9 and cooperate R type pin 10 and lift end jack and be connected.Be provided with the spill slideway 11 of vertical direction on the base of lifting end jack 1 left and right sides, the protuberance of lifting end jack 1 left and right sides is embedded in the spill slideway 11.
The course of work to the skid shoe type bottom raising mechanism of hydraulic support describes below.When needing mobile hydraulic support, at first make and lift 1 elongation of end jack, lifting end jack 1, to prolong spill slideway 11 descending, with push rod 7 for lifting on the hydraulic support foundation 6 of naming a person for a particular job.This moment, piston shoes 8 contacted with push rod 7, and friction factor is very little between the contact surface of piston shoes 8 and push rod 7, and passing jack 12 moves the required thrust of hydraulic support and diminishes, and finished very easily and moved the frame operation.
Move the required thrust of hydraulic support and diminish owing to pass jack 12, greatly reduced to move in the frame process and lifted end jack lifting the horizontal applied force of end jack, farthest having protected.
Certainly, above-mentioned explanation is not to be limitation of the present invention, and the present invention also is not limited in above-mentioned giving an example, and variation, remodeling, interpolation or replacement that those skilled in the art are made in essential scope of the present invention also should belong to protection scope of the present invention.
Claims (6)
1, the skid shoe type bottom raising mechanism of hydraulic support, comprise lift end jack with lift the upper frame that jack top, the end is connected, upper frame is connected with the base of hydraulic support, lifts jack below, the end and is provided with push rod; It is characterized in that: the piston shoes of friction factor when described bottom of lifting end jack is provided for reducing to lift end jack and contacts with push rod.
2, the skid shoe type bottom raising mechanism of hydraulic support according to claim 1 is characterized in that: described piston shoes are with to lift end jack hinged, and piston shoes are by two vertical bearing pins and cooperate R type pin and lift end jack and be connected.
3, the skid shoe type bottom raising mechanism of hydraulic support according to claim 2 is characterized in that: described piston shoes bottom is smooth surface, and the rear and front end is upturned.
4, according to the skid shoe type bottom raising mechanism of claim 1,2 or 3 described hydraulic supports, it is characterized in that: described end of lifting end jack piston rod is a sphere, with between the upper frame ball-and-socket for sphere contacts, and connect with bolt; Upper frame ball-and-socket diameter is slightly less than the diameter of piston rod end sphere, makes the contact site leave the gap of stressed back strain.
5, the skid shoe type bottom raising mechanism of hydraulic support according to claim 4 is characterized in that: the described base of lifting the jack left and right sides, the end is provided with the spill slideway of vertical direction, and the protuberance of lifting the jack left and right sides, the end is embedded in the spill slideway.
6, the skid shoe type bottom raising mechanism of hydraulic support according to claim 5 is characterized in that: described upper frame is connected with the base of hydraulic support by two horizontal bearing pins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100204421A CN101526005B (en) | 2009-04-09 | 2009-04-09 | Skid shoe type bottom raising mechanism of hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100204421A CN101526005B (en) | 2009-04-09 | 2009-04-09 | Skid shoe type bottom raising mechanism of hydraulic support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101526005A true CN101526005A (en) | 2009-09-09 |
| CN101526005B CN101526005B (en) | 2012-03-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100204421A Expired - Fee Related CN101526005B (en) | 2009-04-09 | 2009-04-09 | Skid shoe type bottom raising mechanism of hydraulic support |
Country Status (1)
| Country | Link |
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| CN (1) | CN101526005B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200021A (en) * | 2011-05-09 | 2011-09-28 | 中煤北京煤矿机械有限责任公司 | Floating adjustable base lifting device and thin coal seam hydraulic support |
| CN102536285A (en) * | 2010-12-09 | 2012-07-04 | 郑州四维机电设备制造有限公司 | Bottom lifting mechanism for hydraulic bracket of thin coal bed |
| CN103410546A (en) * | 2013-08-29 | 2013-11-27 | 郑州煤矿机械集团股份有限公司 | Crotch type base of hydraulic support for coal mines |
| CN103758546A (en) * | 2013-12-06 | 2014-04-30 | 中煤北京煤矿机械有限责任公司 | Anti-slide bottom-lifting mechanism for hydraulic support |
| CN104564116A (en) * | 2015-01-04 | 2015-04-29 | 内蒙古北方重工业集团有限公司 | Bottom lifting mechanism and hydraulic support with same |
| CN104612735A (en) * | 2014-12-20 | 2015-05-13 | 曲天智 | Temporary support hydraulic support for tunneling working face |
| CN108386220A (en) * | 2018-03-02 | 2018-08-10 | 中煤北京煤矿机械有限责任公司 | Air return lane advance timbering bottom raising mechanism suitable for soft seat |
| CN113006851A (en) * | 2021-03-19 | 2021-06-22 | 中煤科工开采研究院有限公司 | Mining hydraulic support limiting pushing mechanism |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU861626A1 (en) * | 1980-01-07 | 1981-09-07 | Всесоюзный Ордена Трудового Красного Знамени Научно-Исследовательский Горно-Металлургический Институт Цветных Металлов | Spreading device |
| CN1702300A (en) * | 2005-05-26 | 2005-11-30 | 郑州煤炭工业(集团)有限责任公司 | Arrangement for quickly shifting sublevel caving hydraulic support series for fully-mechanized mining of three-soft coal bed |
| CN2839562Y (en) * | 2005-11-02 | 2006-11-22 | 何炳银 | Movable tunnel hydraulic support |
| CN201391325Y (en) * | 2009-04-09 | 2010-01-27 | 山东科技大学 | Glider type bottom lifting mechanism of hydraulic support |
-
2009
- 2009-04-09 CN CN2009100204421A patent/CN101526005B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536285A (en) * | 2010-12-09 | 2012-07-04 | 郑州四维机电设备制造有限公司 | Bottom lifting mechanism for hydraulic bracket of thin coal bed |
| CN102536285B (en) * | 2010-12-09 | 2014-04-09 | 郑州四维机电设备制造有限公司 | Bottom lifting mechanism for hydraulic bracket of thin coal bed |
| CN102200021A (en) * | 2011-05-09 | 2011-09-28 | 中煤北京煤矿机械有限责任公司 | Floating adjustable base lifting device and thin coal seam hydraulic support |
| CN103410546A (en) * | 2013-08-29 | 2013-11-27 | 郑州煤矿机械集团股份有限公司 | Crotch type base of hydraulic support for coal mines |
| CN103410546B (en) * | 2013-08-29 | 2016-03-02 | 郑州煤矿机械集团股份有限公司 | Coal-mine hydraulic support opens a grade formula base |
| CN103758546A (en) * | 2013-12-06 | 2014-04-30 | 中煤北京煤矿机械有限责任公司 | Anti-slide bottom-lifting mechanism for hydraulic support |
| CN104612735A (en) * | 2014-12-20 | 2015-05-13 | 曲天智 | Temporary support hydraulic support for tunneling working face |
| CN104564116A (en) * | 2015-01-04 | 2015-04-29 | 内蒙古北方重工业集团有限公司 | Bottom lifting mechanism and hydraulic support with same |
| CN108386220A (en) * | 2018-03-02 | 2018-08-10 | 中煤北京煤矿机械有限责任公司 | Air return lane advance timbering bottom raising mechanism suitable for soft seat |
| CN113006851A (en) * | 2021-03-19 | 2021-06-22 | 中煤科工开采研究院有限公司 | Mining hydraulic support limiting pushing mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101526005B (en) | 2012-03-21 |
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