CN2188654Y - Combined alternating bracing hydraulic support - Google Patents
Combined alternating bracing hydraulic support Download PDFInfo
- Publication number
- CN2188654Y CN2188654Y CN 94203315 CN94203315U CN2188654Y CN 2188654 Y CN2188654 Y CN 2188654Y CN 94203315 CN94203315 CN 94203315 CN 94203315 U CN94203315 U CN 94203315U CN 2188654 Y CN2188654 Y CN 2188654Y
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- hydraulic pressure
- support
- middle girder
- column
- valve
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Abstract
The utility model discloses a hydraulic support, especially a combined alternating bracing hydraulic support which is formed by the combination of a T-shaped middle beam, a left top beam and a right top beam, wherein, the T-shaped middle beam, the left top beam and the right top beam can move mutually by taking the opposite party as a guide rail mutually to has the functions of alternating moving and alternating bracing. Compared with fully-mechanized mining hydraulic support, high-grade and blast-mining working surface supporting form, the combined alternating bracing hydraulic support has the advantages of favorable overall stability, favorable top supporting effect, strong supporting ability, high mechanized degree, low cost, wide matching range, convenient moving and surface exchange, etc.
Description
The utility model relates to a kind of hydraulic support, and particularly a kind of combined type replaces the support hydraulic pressure support.
At present, in the raw coal of China was produced, generally the top form of protecting of Cai Yonging was the articulated roof beam support form of comprehensive mining hydraulic bracket supporting or top grade, blast mining face.Though it is very wide that these protect top form application, also exists many weak points simultaneously.
To move the frame process be to descend earlier to afterwards move forward to the frame that falls of comprehensive mining hydraulic bracket support form, its decline afterwards top board all expose, make top board all be in the non-support state, cause the top board formation unsafe factor that comes off easily.Comprehensive mining hydraulic bracket is for exceeding the exposed top board that coal mining machine roller cuts beam, and obtaining supporting must be to move frame after the pushing and sliding, but is subjected to the restriction of face conveyor.The front end of hydraulic support does not have shore supports, causes the front end condition of work of hydraulic support abominable, comprehensive mining hydraulic bracket move the frame fulcrum on the shelves coal plate of transporter, the sagging moving difficulty that makes of footing when the pressure that the float coal of bracket base front end and support bear is big.
In top grade, blast mining face support form, coal mining machine roller cuts beam and articulated roof beam length does not match, and newly exposed top board can not get immediate support.Roof timbering adopts manual work, and labour intensity is big, the quality instability, and be prone to personal injury.
The utility model is at the shortcoming of above-mentioned three kinds of support forms and design, and it mainly is made up of a T type middle girder and left and right sides back timber and equally distributed hydraulic pressure monomer column and base, hydraulic system.T type middle girder can be fulcrum and move on the back timber of the left and right sides, play flexible beam action with left and right sides back timber.Move and the lifting of hydraulic pressure monomer column of T type middle girder are controlled by the operation valve of hydraulic system.Base can reduce the unit pressure of support to ground, reduce sinking of support, the base of left and right sides back timber adopts the hinge plate to connect, can change upper and lower with the ground of work plane, can easily adjust support, T type middle girder and left and right sides back timber moves in the frame falling frame, spacing mutually, mutual restriction can prevent askew, stings frame, fall frame.Move in the frame process falling frame, the utility model is that T type middle girder and left and right sides back timber leapfrog, and all the time top board is carried out supporting, and exposed top board area reduces many than comprehensive mining hydraulic bracket.And can be with the supporting of time shift frame, not limited by face conveyor, T type beam front end has shore supports, improved condition of work, the mobile fulcrum of T type beam is on the back timber of the left and right sides, so whether pillar is sagging atomic to the influence of T type middle girder, because the utility model adopts hydraulic drive, realized mechanization, improved and protected top quality and efficient.
Below in conjunction with accompanying drawing the utility model is described in further details.
Fig. 1 replaces the front view of support hydraulic pressure support for the utility model combined type.
Fig. 2 replaces the vertical view of support hydraulic pressure support for the utility model combined type.
Fig. 3 is a village utility model T type middle girder front view.
Fig. 4 is the utility model middle girder vertical view.
Fig. 5 is the utility model left and right sides back timber front view.
Fig. 6 is the utility model back timber vertical view.
Fig. 7 is the right back timber of a utility model left side sectional view.
Fig. 8 is the hydraulic system principle figure of the utility model combined and alternatively support hydraulic pressure support.
Fig. 9 is the utility model monomer column valve front view.
Figure 10 is the utility model hydraulic pressure monomer column sectional view.
With reference to Fig. 1, Fig. 2, Fig. 8.When combined type replaces the work of support hydraulic pressure support, at first pull operation valve (13) control coal wall hydraulic pressure monomer column (4) action, coal wall hydraulic pressure monomer column (4) is shunk, after contraction finishes, pull the handle of operation valve (12), make and receive coal wall column jack (10) withdrawal, with coal wall hydraulic pressure monomer column (4) pack up to T type middle girder (1) parallel position, pull the handle of operation valve (14), hydraulic pressure monomer column (8) shrinks after making T type middle girder, stops when being retracted to the disengaging float coal, pulls operation valve (15) handle this moment, pass jack (3) action, promoting T type middle girder (1) serves as that support and slide rail move forward with left and right sides back timber (2) and (2 '), when finishing a stroke, when exposed top board does not obtain complete supporting, can transfer to the pin of passing jack (3), finish second stroke.Pulling operation valve (12) handle then stretches out receipts coal wall column jack (10), coal wall hydraulic pressure monomer column (4) is delivered to and T type middle girder (1) upright position, pull operation valve (13), (14) handle, rise hydraulic pressure monomer column (8) behind coal wall hydraulic pressure monomer column (4) and the T type middle girder, stop after reaching setting load.
When left and right sides back timber (2) and the reach of (2 ') needs, should at first pull the handle of operation valve (11) and (16), make six hydraulic pressure monomer columns (7) withdrawal of left and right sides back timber (2) and (2 '), driving base (6) lifts, break away from the ground float coal, at this moment pull operation valve (15) handle, pass jack (3) withdrawal, driving left and right sides back timber (2) and (2 ') is that slide rail moves forward with T type middle girder (11), after moving to the operating position, pull operation valve (11) and (16) and rise six hydraulic pressure monomer columns (7) of left and right sides back timber (2) and (2 '), the hydraulic pressure monomer column of left and right sides back timber (2) and (2 ') will separately rise, this is because two bases (6) of left and right sides back timber (2) and (2 ') adopt the moveable connection method of twisted axis type of attachment, separately rise the angle that to adjust hydraulic pressure monomer column (7) and left and right sides back timber (2) and (2 '), increase the stability of support.So far, combined type replaces the support hydraulic pressure support and finishes a working cycles.In addition, the utility model is equipped with waste rock board (9), prevents that old man's waste from scurrying into the workspace.
The power source of the utility model hydraulic system comes from emulsion power pack, provides power by fluid pressure line.Hydraulic system is with the action as operation valve (11), (12), (13), (14), (15), (16) control bracket of the reversal valve of six 3-position 4-ways.Form control valve (17) by a hydraulically-controlled one-way valve and a safety valve, these four control valves (17) are installed in respectively on the front and back hydraulic pressure monomer column of left and right sides back timber (2) and (2 ') and T type middle girder (1).Wherein the hydraulic control one way valve plays unidirectional conducting effect, makes the pressure oil can not be from hydraulic pressure monomer column reflux operation valve.Safety valve is that system pressure is kept is constant, plays the safeguard protection effect.
With reference to Fig. 5, Fig. 6, Fig. 7, Fig. 1, Fig. 2.Junction plate (18) was fixedlyed connected with back junction plate (19) before left and right sides back timber (2) adopted, make left and right sides back timber form the integral body of a rigidity, with the stability that increases support with to the control top ability of top board, the inboard of the left and right sides back timber (2) after the connection forms the slideway that T type middle girder (1) moves forward, T type middle girder (1) can break away from top board after falling frame, under the effect of passing jack (3), slideway along left and right sides back timber (2) moves forward, otherwise T type middle girder (1) can be used as the guide beam that left and right sides back timber (2) moves forward again after supporting.
With reference to Fig. 9, Fig. 1.The hydraulic pressure monomer column is made up of the hydraulic pressure monomer column valve (22) that outer cylinder body (20), (21) two of inner cylinder bodies are installed on inner cylinder body (20) and the outer cylinder body (21).When hydraulic oil enters hydraulic pressure monomer column cavity of resorption by hydraulic pressure monomer column valve (22), support is risen, when hydraulic pressure monomer column epicoele advanced hydraulic oil, the hydraulic oil of hydraulic pressure monomer column cavity of resorption flowed back to hydraulic tube by hydraulic pressure monomer column valve (22), and support is descended.
Claims (4)
1, a kind of combined type replaces the support hydraulic pressure support, it is characterized in that:
A.T type middle girder (1) matches with left and right sides back timber (2) and (2 '), does vertically moving under the promotion of passing jack (3),
B. two bases (6) of left and right sides back timber (2) and (2 ') adopt hinge plate (5) to flexibly connect, all drop on the base (6) at left and right sides back timber (2) and (2 ') last equally distributed six hydraulic pressure monomer columns (7), contact with the ground of work plane by base (6)
C. junction plate (18) was fixedly connected to form an integral body with back junction plate (19) before adopted left and right sides back timber (2) and (2 '), and left and right sides back timber (2) and (2 ') inboard, combination back becomes the mobile slideway of T type middle girder (1),
D. hydraulic pressure monomer column (8) can adopt suitable quantity according to actual conditions behind hydraulic pressure monomer column (7) or the T type middle girder.
2, combined type according to claim 1 replaces the support hydraulic pressure support, it is characterized in that:
A. to replace the T type middle girder of support hydraulic pressure support be by T type middle girder (1) to combined type, and coal wall hydraulic pressure monomer column (4) is received coal wall column jack (10), and hydraulic pressure monomer column (8) is formed behind the T type middle girder,
B. coal wall hydraulic pressure monomer column (4) can be received and T type middle girder (1) parallel position under the drive of receiving coal wall column jack (10),
The part of c.T type middle girder (1) has step, can match with the groove of left and right sides back timber (2) and (2 ').
3, replace the support hydraulic pressure support according to the described combined type of claim 1, it is characterized in that:
A. the combined type hydraulic system that replaces the support hydraulic pressure support is provided with operation valve (11), (12), (13), (14), (15), (16) and four control valves (17),
B. operating valve (11) and (16) controls six hydraulic pressure monomer columns (7), operation valve (12), control receipts coal wall column jack (10), operation valve (13), controls coal wall hydraulic pressure monomer column (4), operation valve (14) control T type middle girder and hydraulic pressure monomer column (8), operates valve (15) control passing jack (3), what the operation valve adopted is three position four-way directional control valve, control mode is handle control
C. control valve (17) is contained in six hydraulic pressure monomer columns (7), coal wall hydraulic pressure monomer column (4), T type middle girder and hydraulic pressure monomer column (8) respectively before, per three hydraulic pressure monomer columns (7) are adorned a control valve (17) before, control valve (17) by one can only unidirectional conducting hydraulically-controlled one-way valve and the safety valve of a control system pressure form.
4, replace the support hydraulic pressure support according to the described combined type of claim 1, it is characterized in that:
The hydraulic pressure monomer column by outer cylinder body (20) and inner cylinder body (21) and be installed in outer cylinder body (20) and inner cylinder body (21) on two hydraulic pressure monomer column valves (22) form, outer cylinder body (20) and inner cylinder body (21) in opposite directions and support or oppose mobilely, finish rising frame and falling frame action under the effect of pressure oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94203315 CN2188654Y (en) | 1994-01-31 | 1994-01-31 | Combined alternating bracing hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94203315 CN2188654Y (en) | 1994-01-31 | 1994-01-31 | Combined alternating bracing hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2188654Y true CN2188654Y (en) | 1995-02-01 |
Family
ID=33822860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94203315 Expired - Fee Related CN2188654Y (en) | 1994-01-31 | 1994-01-31 | Combined alternating bracing hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2188654Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1079489C (en) * | 1998-09-11 | 2002-02-20 | 阎顺 | Combined hydraulic support |
| 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 |
| CN102587946A (en) * | 2011-01-06 | 2012-07-18 | 苑军 | Integrally-moving protective forepoling |
| CN103216252A (en) * | 2013-05-06 | 2013-07-24 | 辽宁天安矿山科技有限公司 | Roadway advanced supporting supports capable of assisting machinery to move |
| CN103277127A (en) * | 2013-05-30 | 2013-09-04 | 天地科技股份有限公司 | Ultrathin seam hydraulic support |
| CN105041363A (en) * | 2015-08-28 | 2015-11-11 | 三一重型装备有限公司 | Supporting system for pure water medium fully mechanized coal mining face |
| WO2017211429A1 (en) | 2016-06-10 | 2017-12-14 | Sandvik Intellectual Property Ab | Active temporary roof support apparatus |
| CN110130965A (en) * | 2019-06-13 | 2019-08-16 | 河南理工大学 | A kind of advance support rack and application method of comprehensive mechanized driving |
| CN110195609A (en) * | 2019-07-01 | 2019-09-03 | 贵州师范大学 | Head and the tail alternative expression advanced hydraulic support |
| CN112160784A (en) * | 2020-08-13 | 2021-01-01 | 中国煤炭科工集团太原研究院有限公司 | Transportation crossheading alternate circulation support type advance support device and support method |
-
1994
- 1994-01-31 CN CN 94203315 patent/CN2188654Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1079489C (en) * | 1998-09-11 | 2002-02-20 | 阎顺 | Combined hydraulic support |
| 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 |
| CN102587946A (en) * | 2011-01-06 | 2012-07-18 | 苑军 | Integrally-moving protective forepoling |
| CN103216252A (en) * | 2013-05-06 | 2013-07-24 | 辽宁天安矿山科技有限公司 | Roadway advanced supporting supports capable of assisting machinery to move |
| CN103277127A (en) * | 2013-05-30 | 2013-09-04 | 天地科技股份有限公司 | Ultrathin seam hydraulic support |
| CN105041363A (en) * | 2015-08-28 | 2015-11-11 | 三一重型装备有限公司 | Supporting system for pure water medium fully mechanized coal mining face |
| WO2017211429A1 (en) | 2016-06-10 | 2017-12-14 | Sandvik Intellectual Property Ab | Active temporary roof support apparatus |
| US10815781B2 (en) | 2016-06-10 | 2020-10-27 | Sandvik Intellectual Property Ab | Active temporary roof support apparatus |
| CN110130965A (en) * | 2019-06-13 | 2019-08-16 | 河南理工大学 | A kind of advance support rack and application method of comprehensive mechanized driving |
| CN110195609A (en) * | 2019-07-01 | 2019-09-03 | 贵州师范大学 | Head and the tail alternative expression advanced hydraulic support |
| CN112160784A (en) * | 2020-08-13 | 2021-01-01 | 中国煤炭科工集团太原研究院有限公司 | Transportation crossheading alternate circulation support type advance support device and support method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |