CN1077243A - Half-discharge step-by-step hydraulic prop - Google Patents
Half-discharge step-by-step hydraulic prop Download PDFInfo
- Publication number
- CN1077243A CN1077243A CN 92102263 CN92102263A CN1077243A CN 1077243 A CN1077243 A CN 1077243A CN 92102263 CN92102263 CN 92102263 CN 92102263 A CN92102263 A CN 92102263A CN 1077243 A CN1077243 A CN 1077243A
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- hydraulic prop
- outer beam
- double acting
- combined oil
- 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.)
- Pending
Links
Images
Landscapes
- Actuator (AREA)
Abstract
The present invention discloses the half-discharge step-by-step hydraulic prop that a kind of coal mine support uses; It is made up of Li Liang, Wai Liang, preceding beam, multi-functional combined oil cylinder and double acting hydraulic prop etc.; Innner and outer beam and preceding beam are hinged with outer shell, inner casing and the piston rod of multi-functional combined oil cylinder respectively; In beam be loaded on Wai Liangzhong, multi-functional combined oil cylinder is loaded on Li Liangzhong; Li Liang and outer beam are alternately taken a step when moving frame, and move relative to upper and lower; Eliminate empty top phenomenon, alleviated coal whereabouts, top problem; Be not only applicable to the coal-face of hard and general top board, be applicable to looser top board work plane yet; Production safety; Simple in structure, cost is low.
Description
The present invention relates to support apparatus under a kind of coal mine, be applicable to multiple mining way, be particularly useful for the supporting of looser top board, is a kind of half off-load walking type hydraulic supports.
Used walking type hydraulic supports as the patent No. is: 85202365.0 hydraulic prop for sliding mine caps, mainly form by preceding back timber, back back timber, flat spring, propelling oil cylinder, double acting hydraulic prop and hydraulic valve bank etc.This hydraulic rack structure is simple, flexible movements under than the breaking roof condition, easy to operate, carry out the frame of taking a step automatically to move.When this hydraulic support moved frame, the first off-load of preceding back timber moved frame by back timber before moving the drive of frame oil cylinder, then preceding back timber support; Then, back back timber off-load moves frame by moving frame oil cylinder drive back back timber, and then the back back timber supports; Before the back timber off-load moved the frame support to the back back timber in the past, the former support of preceding back timber place was in sky top state; Use under the condition faster when falling, be difficult for lifting the phenomenon of leg sometimes at top board; When the inclined seam stope that is used for than high inclination-angle, owing to the reasons such as rigidity of flat spring, the flat spring material is required high, need to use high-quality steel or alloy spring steel, therefore the heat treatment requirements strictness has increased the cost of hydraulic support; In the use, flat spring ruptures sometimes, is the quick-wear part of this hydraulic support.
The objective of the invention is for overcoming a kind of hydraulic support that does not use the back timber slip of flat spring that above-mentioned weak point designs; Beam is contained in the outer beam in this hydraulic support; Can relatively move between the beam of innner and outer to realize moving frame; Move frame steadily, no empty top phenomenon.
Content of the present invention, half-discharge step-by-step hydraulic prop is made up of main parts size such as lining beam 3, outer beam 2, multi-functional combined oil cylinder and double acting hydraulic props 8; In beam 3 be contained in outer beam 2 bodies, outer beam 2 tops are provided with long mouthful 15, the bottom is provided with groove 16; In the both sides of beam 3 positioning sleeve 12 is housed, the hole of positioning sleeve 12 matches with fulcrum post 9 on the outer shell 4 that is fixed on multi-functional combined oil cylinder; Bearing pin 7 on the inner casing 5 of multi-functional combined oil cylinder is connected with outer beam 2; In the moving track of beam 3 in bottom surface 14 formations of bottom surface 13 and outer beam 2 of beam 3; The face 10 of outer beam 2 and the face of positioning sleeve 12 11 form the moving track of outer beam 2; Below outer beam 2 and the lining beam 3 double acting hydraulic prop 8 is installed respectively.
The side of outer beam 2 is provided with elongated slot 6, and bearing pin 7 matches with elongated slot 6 and can move up and down along groove 6, when guaranteeing to move frame Wai Liang and in beam move unobstructedly.In the double acting hydraulic prop of beam 3 be positioned at the place ahead of the double acting hydraulic prop of outer beam 2.
Advantage of the present invention, the Li Liang of half-discharge step-by-step hydraulic prop and outer beam casing are fitted together; When moving frame, a back timber moves frame, and another is still supporting original top board, and it is steady to move frame, has solved under the situation of loose roof, and the coal problem that drops in top had guaranteed production safety when old type back timber moved frame, had improved the coal mining progress.Compact conformation of the present invention does not in addition use special material, no highly difficult processing request, so manufacturing cost is lower.
Description of drawings:
Fig. 1 is a half-discharge step-by-step hydraulic prop of the present invention.
Fig. 2 is the A-A sectional drawing of Fig. 1.
Fig. 3 is the cross section of outer beam.
Fig. 4 is multi-functional combined oil cylinder.
Fig. 5 moves in the frame for half-discharge step-by-step hydraulic prop, Li Liang, outer beam and double acting hydraulic prop relative position figure.
Form by lining beam 3, outer beam 2, multi-functional combined oil cylinder (its patent No. is 88205833.9), double acting hydraulic prop 8 and preceding beam 1 below in conjunction with the description of drawings embodiment of the invention, half-discharge step-by-step hydraulic prop; In beam 3 be loaded in outer beam 2 bodies; In multi-functional combined oil cylinder is loaded in beam 3 bodies; The outer shell 4 of multi-functional combined oil cylinder matches by the hole of fixing fulcrum post 9 and positioning sleeve 12 above it.Bearing pin 7 on the inner casing 5 of multi-functional combined oil cylinder matches with the elongated slot 6 on the outer beam 2; Be that multi-functional combined oil cylinder not only links with outer beam 2 but also links with lining beam 3; Bearing pin 7 can 6 li of elongated slots move up and down so that in beam 3 or outside beam 2 unload, move frame and support smoothly; In articulated two double acting hydraulic props 8 below the beam 3, also articulated two double acting hydraulic props 8 below the outer beam 2.When half-discharge step-by-step hydraulic prop moves frame (referring to Fig. 5), at first in beam 3 unloading, i.e. 8 unloadings (mentioning) of double acting hydraulic prop on it, simultaneously, lining beam 3 falls with respect to outer beam 2; The second, in the outer shell of multi-functional combined oil cylinder 4 drives beam 3 and on double acting hydraulic prop 8 move frame; Three, after lining beam 3 moves frame and puts in place, support roof and floor, promptly in beam 3 support roof and floors by the double acting hydraulic prop on it 8; The 4th,, lining beam 3 finishes outer beam 2 unloadings, double acting hydraulic prop 8 unloadings (mentioning) on the promptly outer beam 2 when supporting; Simultaneously, outer beam 2 falls with respect to lining beam 3; The 5th, the inner casing of multi-functional combined oil cylinder 5 drive outer beams 2 and on double acting hydraulic prop 8 move frame; The 6th, after moving frame and put in place, supports on outer beam 2, and promptly outer beam 2 props up support, base plate by the double acting hydraulic prop on it; Beam 3 outer beams 2 support simultaneously in this moment; Moving frame finishes.After coal-winning machine was newly adopted a cutter coal, exposed empty top zone, by the piston rod of multi-functional combined oil cylinder drive be loaded in preceding beams 1 in the beam 3 make advance support; Beam 3 is in beam 1 is withdrawn voluntarily before reach is during frame in the beam 3 in moving in the frame next time.
Claims (3)
1, a kind of hydraulic support that comprises back timber, moves frame oil cylinder and double acting hydraulic prop, it is characterized in that back timber be divided in beam 3 and outer beam 2, lining beam 3 is loaded in outer beam 2 bodies; Outer beam 2 tops are provided with long mouthful 15, and the bottom is provided with groove 16; In the both sides of beam 3 positioning sleeve 12 is housed; The hole of positioning sleeve 12 matches with the fulcrum post 9 that is fixed on the multi-functional combined oil cylinder outer shell 4; Bearing pin 7 on the inner casing 5 of multi-functional combined oil cylinder is connected with outer beam 2; In the moving track of beam 3 in bottom surface 14 formations of bottom surface 13 and outer beam 2 of beam 3; The face 10 of outer beam 2 and the face of positioning sleeve 12 11 form the moving track of outer beam 2; Below outer beam 2 and the lining beam 3 double acting hydraulic prop 8 is installed respectively.
2, hydraulic support as claimed in claim 1 is characterized in that the side of outer beam is provided with elongated slot 6, and bearing pin 7 matches with elongated slot 6 and can move up and down along elongated slot 6.
3, hydraulic support as claimed in claim 1, the double acting hydraulic prop of beam 3 is positioned at the place ahead of the double acting hydraulic prop of outer beam 2 in it is characterized in that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92102263 CN1077243A (en) | 1992-04-07 | 1992-04-07 | Half-discharge step-by-step hydraulic prop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92102263 CN1077243A (en) | 1992-04-07 | 1992-04-07 | Half-discharge step-by-step hydraulic prop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1077243A true CN1077243A (en) | 1993-10-13 |
Family
ID=4939544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92102263 Pending CN1077243A (en) | 1992-04-07 | 1992-04-07 | Half-discharge step-by-step hydraulic prop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1077243A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101319613B (en) * | 2008-07-09 | 2010-06-02 | 山西东华机械有限公司 | Twin-beam twin-column stepping leading hydraulic support |
| RU2495249C1 (en) * | 2012-07-04 | 2013-10-10 | Александр Александрович Перфилов | Powered support for steep beds |
| CN103422874A (en) * | 2013-08-12 | 2013-12-04 | 淮南矿业(集团)有限责任公司 | Stepping type support device |
-
1992
- 1992-04-07 CN CN 92102263 patent/CN1077243A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101319613B (en) * | 2008-07-09 | 2010-06-02 | 山西东华机械有限公司 | Twin-beam twin-column stepping leading hydraulic support |
| RU2495249C1 (en) * | 2012-07-04 | 2013-10-10 | Александр Александрович Перфилов | Powered support for steep beds |
| CN103422874A (en) * | 2013-08-12 | 2013-12-04 | 淮南矿业(集团)有限责任公司 | Stepping type support device |
| CN103422874B (en) * | 2013-08-12 | 2015-10-21 | 淮南矿业(集团)有限责任公司 | Step type suspension device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101457652B (en) | Overlarge mining height hydraulic support | |
| ES455334A1 (en) | Advancing support | |
| CN108468560A (en) | A kind of half-edge coal seam puppet is bowed plagioclase wall Z-shaped supporting frame quarrying apparatus and method | |
| CN1077243A (en) | Half-discharge step-by-step hydraulic prop | |
| CN2120181U (en) | Semi-unloading step-by-step hydraulic support | |
| RU2133828C1 (en) | Section of hydraulic walking support | |
| GB1415188A (en) | Advanceable roof-supporting device for mining galleries | |
| CN208330431U (en) | A kind of half-edge coal seam puppet is bowed plagioclase wall Z-shaped supporting frame quarrying apparatus | |
| CN86101783A (en) | Hydraulic roof support | |
| CN205422757U (en) | Face -end support's back timber subassembly and face -end support | |
| CN213088002U (en) | Rapid tunneling circulating supporting device | |
| CN220469981U (en) | Six-column supporting type light hydraulic support | |
| GB2062736A (en) | Movable Mine Roof Supports | |
| SU1730462A1 (en) | Powered support unit | |
| CN214660252U (en) | Combine and adopt working face advance tunnel roof to strut and use drive connection structure | |
| RU2229606C1 (en) | Section of hydraulic powered support | |
| CN202914116U (en) | Hydraulic support of preventing coal wall from spalling and roof falling in front of support | |
| CN218844310U (en) | Digging and anchoring integrated machine for coal mine | |
| CN115306472A (en) | Hydraulic support side direction moving platform | |
| CN221002810U (en) | Temporary support structure for soft rock roadway | |
| SU569719A1 (en) | Locking of props | |
| RU2095575C1 (en) | Combination metal mine support | |
| CN2096643U (en) | Side-by-side moving back timber hydraulic support | |
| GB1344771A (en) | Mobile roof support unit | |
| CN211474151U (en) | Movable support bracket for coal mine excavation roadway |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |