CN204827503U - Lift end mechanism and have this hydraulic support who lifts end mechanism - Google Patents
Lift end mechanism and have this hydraulic support who lifts end mechanism Download PDFInfo
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- CN204827503U CN204827503U CN201520000566.4U CN201520000566U CN204827503U CN 204827503 U CN204827503 U CN 204827503U CN 201520000566 U CN201520000566 U CN 201520000566U CN 204827503 U CN204827503 U CN 204827503U
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Abstract
The utility model discloses a lift end mechanism and have this hydraulic support who lifts end mechanism. Should lift end mechanism passes a bridge, lifts end jack and support the otic placode including supporting. Wherein the cylinder body of lifting end jack rotates to be installed supported on bridgely, the piston rod of lifting end jack rotates to be installed support on the otic placode, the support replaces anterior conventional board -like the passing a bridge of base on passing a bridge and being fixed in the anterior both sides of hydraulic support base box, it is fixed in on the hydraulic support push rod to support the otic placode. It uses and lifts end jack and support and pass a bridge the pin joint as axle swing back and forth to lift end jack, at the in -process that pushes away the hydraulic support push rod, lift end jack piston rod and toward retrieving, when antedisplacement hydraulic support, lift end jack piston rod toward going out to stretch to the mesh at the end is lifted in the realization. Compared with the prior art, the utility model, because of lifting end jack lower extreme and the articulated design together of hydraulic support push rod, the friction and wear problem between end jack and the hydraulic support push rod of lifting has been eliminated.
Description
Technical field
The utility model relates to a kind of bottom raising mechanism and has the hydraulic support of this bottom raising mechanism, particularly relates to the hydraulic support of fully mechanized coal mining face.
Background technology
At present, hydraulic support is the main support apparatus of underground coal mine fully-mechanized mining working.Due to most down-holes complex geologic conditions, base plate mostly is mud stone or the argillaceous sandstone of soft easy argillization, and hydraulic support in use, pan frontward end easily pricks the end, namely hydraulic support foundation front end is absorbed in seat earth, and support can not normally be tried to stop people from fighting each other (reach), affects normal working face.In practical operation, when hydraulic support front end sinks, front end is lifted by general use bottom raising mechanism, process is: bottom raising mechanism promotes the push rod be arranged in hydraulic support in crotch, because push rod directly contacts with seat earth, so the front end of hydraulic support can be lifted, then by being articulated with the advancing jack effect between hydraulic support foundation and push rod, hydraulic support is moved forward smoothly.
Traditional bottom lifting mechanism of hydraulic support Chinese patent (patent No.: CN201381869Y and CN101526005B), comprises the carrier at gap bridge place before being fixed on base, lifts end jack; Lift end jack piston boom end and carrier hinged; The base lifting the jack left and right sides, the end is provided with the spill slideway of vertical direction, and the protuberance lifting the jack left and right sides, the end is embedded in spill slideway, or lifts end jack and be set in and be fixed in the pilot sleeve on passing a bridge before base.When the end lifted by needs, lift end jack and extend, plane on the push rod that the cylinder bottom lifting end jack acts on hydraulic support, thus pan frontward end is lifted, in the process of front moving hydraulic support, lift plane on end jack and push rod be in contact friction state always.Cause lifting end damage of jack for avoiding the direct friction of lifting between the cylinder bottom of end jack and push rod, the cylinder bottom lifting end jack overlaps piston shoes or wear-resisting overcoat.The shortcoming that this kind of bottom raising mechanism exists: the friction of lifting between end jack and push rod inreal elimination, while end jack, piston shoes or wear-resisting overcoat are lifted in damage, also can produce a moment of flexure backward because the frictional force of lifting between end jack and push rod makes to lift end jack, cause lifting end jack and occur the phenomenon of leakage by radial load.
Summary of the invention
In order to overcome above-mentioned defect and the deficiency of prior art, the purpose of this utility model be to provide a kind of avoid lifting between the cylinder bottom of end jack and push rod friction and lift the end jack phenomenon of leakage, extend the application life of lifting end jack, to solve the problem rubbed between existing bottom raising mechanism and hydraulic support push rod.
For achieving the above object, the technical solution of the utility model is:
Bottom raising mechanism, comprises supporting and passes a bridge, lifts end jack, supports otic placode, described in lift the cylinder body of end jack hinged be fixed on support and pass a bridge on; Hinged being fixed on of piston rod of lifting end jack supports on otic placode.
The described cylinder body lifting end jack is fixed on by the first hinge and supports on gap bridge, and the first bearing pin D type pin is fixed; The piston rod lifting end jack is fixed on by the second hinge and supports on otic placode, and the second bearing pin D type pin is fixed.
Have the hydraulic support of bottom raising mechanism, comprising: bottom raising mechanism, the support on described bottom raising mechanism is passed a bridge and is fixed on hydraulic support foundation front part sides casing, and described support otic placode is fixedly welded on hydraulic support push rod.
Described when hydraulic support push rod retracted state, lift end jack and tilt backwards setting, the longitudinal axis a of the longitudinal axis b and hydraulic support that lift end jack acutangulates, and now lifts end jack and support the hinge of passing a bridge to be of a size of c to lifting end jack with the hinge horizontal range supporting otic placode; When hydraulic support push rod stretches out state, lift end jack to turn forward setting, the longitudinal axis a of the longitudinal axis b and hydraulic support that lift end jack acutangulates, and now lifts end jack and support the hinge of passing a bridge to be of a size of d to lifting end jack with the hinge horizontal range supporting otic placode; Lift end jack to lift end jack and to support the hinge of passing a bridge for axle swing, hydraulic support push rod stretch out and regain extreme position time, size c and size d sum equal the stroke of advancing jack, also equal hydraulic moving stand step pitch.
Operating principle of the present utility model and beneficial effect are:
A kind of bottom raising mechanism that the utility model provides, lifting end jack cylinder body rotation is installed on the support gap bridge of fixed hydraulic bracket base front part sides casing, the piston rod rotation lifting end jack is installed on the support otic placode that is fixed on hydraulic support push rod, lifts end jack to lift end jack and to support gap bridge pin joint for axle swing; In the process pushing away hydraulic support push rod, lifting end jack piston rod toward reclaiming, when front moving hydraulic support, lifting end jack piston rod toward going out to stretch, thus realizing the object of lifting the end.
Compared with prior art, lift jack lower end, the end and the hinged design of hydraulic support push rod, not only eliminate the friction and wear problem of lifting between end jack and hydraulic support push rod, or lift the friction and wear problem of intermediary between end jack and hydraulic support push rod, can eliminate simultaneously and lift the phenomenon of leakage of end jack because occurring by radial load, especially structure simple, lift end distance large, be easy for installation and maintenance.
Accompanying drawing explanation
Fig. 1 the utility model bottom raising mechanism is installed on the perspective view of hydraulic support;
The explosive view of Fig. 2 the utility model bottom raising mechanism embodiment;
Fig. 3 is in the utility model bottom raising mechanism embodiment, lifts end jack optimum incline angle and arrange schematic diagram during hydraulic support push rod retracted state;
Fig. 4 is in the utility model bottom raising mechanism embodiment, lifts end jack optimum incline angle and arrange schematic diagram when hydraulic support push rod stretches out state.
Description of reference numerals:
In Fig. 1-Fig. 4,1 for support pass a bridge, 2 for lift end jack, 3 for support otic placode, 4 for base, 5 for hydraulic support push rod, 6 for advancing jack, 7 for bearing pin, 8 for D type pin, 9 for bearing pin, 10 for D type pin, 21 for lifting end jack cylinder body, 22 for lifting end jack piston rod.
Detailed description of the invention
The utility model is described in further detail by embodiment below in conjunction with accompanying drawing:
See Fig. 1 and Fig. 2, the utility model bottom raising mechanism, comprising: support gap bridge 1, lift end jack 2 and support otic placode 3.Support gap bridge 1 on described bottom raising mechanism is fixedly welded on base 4 front part sides casing, replaces the board-like gap bridge of routine of base front portion.Lift end jack cylinder body 21 to be supported on gap bridge 1 by hinged being fixed on of bearing pin 7, lift end jack piston rod 22 and supported on otic placode 3 by hinged being fixed on of bearing pin 9.Support otic placode 3 to be fixedly welded on hydraulic support push rod 5.Bearing pin 7 D type pin 8 is fixed, and bearing pin 9 D type pin 10 is fixed.
See Fig. 3, when hydraulic support push rod 5 retracted state, lift end jack 2 and tilt backwards setting, the longitudinal axis a of its longitudinal axis b and hydraulic support acutangulates, wherein a be hydraulic support longitudinal axis, b for lifting end jack longitudinal axis, now lift end jack 2 and be of a size of c to lifting end jack 2 with the hinge horizontal range supporting otic placode 3 with the hinge supporting gap bridge 1.
See Fig. 4, when hydraulic support push rod 5 stretches out state, lift end jack 2 to turn forward setting, the longitudinal axis a of its longitudinal axis b and hydraulic support acutangulates, and now lifts end jack 2 and is of a size of d to lifting end jack 2 with the hinge horizontal range supporting otic placode 3 with the hinge supporting gap bridge 1.
See Fig. 3 and Fig. 4, lift end jack 2 to lift end jack 2 and to support the hinge of gap bridge 1 for axle swing, push rod 5 regain and stretch out extreme position time, size c and size d sum equal the stroke of advancing jack 6, also equal hydraulic moving stand step pitch.
During use, pushing away at advancing jack 6 in the process of hydraulic support push rod 5, lifting end jack piston rod 22 toward reclaiming, when front moving hydraulic support, lift end jack piston rod 22 toward going out to stretch, thus realize the object of lifting the end; When lifting end jack piston rod 22 and need lifting the end toward going out to put in row, connect in design at pipeline, coordinated signals can be designed to advancing jack 6.
Compared with existing bottom raising mechanism, the utility model has following advantage:
1) compared with prior art, lift jack lower end, the end and the hinged design of push rod, the friction and wear problem of lifting between end jack and hydraulic support push rod can be eliminated, or eliminate the friction and wear problem of lifting intermediary between end jack and hydraulic support push rod.
2) end jack is only lifted by whole mechanism is movable piece, simple and reliable for structure.Lifting end jack with push rod is swing and axial stretching, makes to lift end jack not by radial moment, and can eliminate and lift the phenomenon of leakage of end jack because occurring by radial load, mechanism reliability is high.
3) the present embodiment structure is simple, to lift end distance large, and connector adopts bearing pin, D type card connected mode, and not easily get rusty, reliability is high, is convenient to dismounting.
The utility model also proposes a kind of hydraulic support, and this hydraulic support is provided with above-mentioned bottom raising mechanism, and as shown in Figure 1, during installation, bottom raising mechanism is longitudinally arranged in hydraulic support foundation in crotch, and its longitudinal center face overlaps with hydraulic support longitudinal center face.Wherein support that gap bridge 1 is horizontal is fixed on hydraulic support foundation front part sides casing, replace the board-like gap bridge of routine of base front portion; The cylinder body 21 lifting end jack is rotatably installed in and supports on gap bridge 1, and the piston rod 22 lifting end jack is rotatably installed on the support otic placode 3 that is fixed on hydraulic support push rod 5.Because bottom raising mechanism has above-mentioned effect, so the hydraulic support with this bottom raising mechanism also possesses corresponding technique effect, the utility model does not repeat them here.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. bottom raising mechanism, comprises supporting and passes a bridge (1), lifts end jack (2), supports otic placode (3), it is characterized in that, described in lift the cylinder body (21) of end jack (2) hinged be fixed on to support pass a bridge on (1); Hinged being fixed on of piston rod (22) of lifting end jack (2) supports on otic placode (3).
2. bottom raising mechanism according to claim 1, is characterized in that, described in lift end jack (2) cylinder body (21) by the first bearing pin (7) hinged be fixed on to support pass a bridge on (1), the first bearing pin (7) D type pin (8) fixes; The piston rod (22) lifting end jack (2) supports on otic placode (3) by hinged being fixed on of the second bearing pin (9), and the second bearing pin (9) D type pin (10) fixes.
3. there is the hydraulic support of bottom raising mechanism, it is characterized in that, comprise bottom raising mechanism, support gap bridge (1) on described bottom raising mechanism is fixed on hydraulic support foundation (4) front part sides casing, and described support otic placode (3) is fixedly welded on hydraulic support push rod (5).
4. the hydraulic support with bottom raising mechanism according to claim 3, it is characterized in that, when hydraulic support push rod (5) retracted state, lift end jack (2) and tilt backwards setting, the longitudinal axis (a) of the longitudinal axis (b) and hydraulic support of lifting end jack (2) acutangulates, and now lifts end jack (2) and is of a size of (c) to lifting end jack (2) with the hinge horizontal range supporting otic placode (3) with the hinge supporting pass a bridge (1); When hydraulic support push rod (5) stretches out state, lift end jack (2) to turn forward setting, the longitudinal axis (a) of the longitudinal axis (b) and hydraulic support of lifting end jack (2) acutangulates, and now lifts end jack (2) and is of a size of (d) to lifting end jack (2) with the hinge horizontal range supporting otic placode (3) with the hinge supporting pass a bridge (1); Lifting end jack (2) to lift end jack (2) with supporting the hinge of (1) of passing a bridge is axle swing, hydraulic support push rod (5) regain and stretch out extreme position time, size (c) and size (d) sum equal the stroke of advancing jack (6), also equal hydraulic moving stand step pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520000566.4U CN204827503U (en) | 2015-01-04 | 2015-01-04 | Lift end mechanism and have this hydraulic support who lifts end mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520000566.4U CN204827503U (en) | 2015-01-04 | 2015-01-04 | Lift end mechanism and have this hydraulic support who lifts end mechanism |
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| CN204827503U true CN204827503U (en) | 2015-12-02 |
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| CN201520000566.4U Active CN204827503U (en) | 2015-01-04 | 2015-01-04 | Lift end mechanism and have this hydraulic support who lifts end mechanism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111878140A (en) * | 2020-06-05 | 2020-11-03 | 范文 | Hydraulic support for thin coal seam mining |
-
2015
- 2015-01-04 CN CN201520000566.4U patent/CN204827503U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111878140A (en) * | 2020-06-05 | 2020-11-03 | 范文 | Hydraulic support for thin coal seam mining |
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