CN108547654A - The suspended caving roof coal hydraulic support and its application method of coal amount are put convenient for control - Google Patents
The suspended caving roof coal hydraulic support and its application method of coal amount are put convenient for control Download PDFInfo
- Publication number
- CN108547654A CN108547654A CN201810689077.2A CN201810689077A CN108547654A CN 108547654 A CN108547654 A CN 108547654A CN 201810689077 A CN201810689077 A CN 201810689077A CN 108547654 A CN108547654 A CN 108547654A
- Authority
- CN
- China
- Prior art keywords
- joist
- jack
- hydraulic support
- top beam
- coal
- 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.)
- Granted
Links
- 239000003245 coal Substances 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims abstract description 15
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 50
- 238000005065 mining Methods 0.000 claims abstract description 10
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 230000032258 transport Effects 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 239000011295 pitch Substances 0.000 description 24
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/03—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor having protective means, e.g. shields, for preventing or impeding entry of loose material into the working space or support
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
- E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/08—Advancing mechanisms
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/12—Control, e.g. using remote control
- E21D23/14—Effecting automatic sequential movement of supports, e.g. one behind the other
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
- E21F13/06—Transport of mined material at or adjacent to the working face
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
- E21F13/08—Shifting conveyors or other transport devices from one location at the working face to another
Abstract
The invention discloses a kind of suspended caving roof coal hydraulic supports for putting coal amount convenient for control, including pedestal, top beam, preceding joist and rear joist, are connected by connecting plate between preceding joist and rear joist；Preceding joist and rear joist are slidably connected by sliding connection structure and top beam respectively；Top beam rear end portion is connected with downwards gear cash jack, the extension bar of gear cash jack extends downwardly and is connected with plate, top beam rear end is connected with downwards wall interior panel, the invention also discloses the application methods of above-mentioned hydraulic support, when coal mining, front conveyer is connected on working face ground, multiple to put suspended caving roof coal hydraulic support of coal amount or so shield top at working face jointly arranged side by side convenient for control；Coalcutter is mined forward after a step pitch, carries out moving frame operation；First is interim shield top；Second is mobile front conveyer；Third is to move frame；The present invention convenient for control puts coal amount, convenient for move frame, shield top can be carried out in time with the job schedule of coalcutter, can at working face Assembling.
Description
Technical field
The present invention relates to coal mine technical field of operation more particularly to a kind of suspended caving roof coal hydraulic support and its users
Method.
Background technology
In recent years, the good working face of China's condition, solid financial strength mining area, which is substantially all, has carried out fully mechanized mining, but also has very
Big a part of middle and small scale coal mine cannot be into fully mechanized mining because of the reasons such as financial difficulty or the limitation of mine condition.
When coal mining, coalcutter carries out operation under the supporting of hydraulic support, and coalcutter is arranged on transporter, and digging comes out
Coal by transporter（Usually drag conveyor）It transports.Per one step pitch of digging（Usually 630 millimeters）, need to carry out primary
Frame operation is moved, makes hydraulic support, transporter and coalcutter Forward, a mobile step pitch, pushes ahead working face every time.It is existing
Caving roof coal hydraulic support has following insufficient：
Whole shifting frame is needed when 1, moving frame, needs that four hydraulic vertical props are positioned manually（There are four hydraulic verticals for each hydraulic support tool
Column）.Moving frame operation needs 2-4 people to co-operate, and labor intensive is more.
2, the top beam of existing cantilever support is heavier, and center of gravity is higher, bears unbalance loading energy force difference, holder less stable, bottom plate compared with
The hydraulic vertical prop of holder is easy slotting bottom when soft（It is inserted into the coal seam on working face ground）.
Meanwhile existing non-suspension-movable hydraulic support has the mechanisms such as pedestal, caving shield and connecting rod, weight is big, of high cost,
It is not easy to move.
3, the transporter generally use drag conveyor of working face, when elapsing transporter, existing cantilever support needs are adopted
With the independent pushing and sliding of push shifter.
4, existing hydraulic support, which cannot control, puts coal amount, cannot stop that spoil scurries into working face after putting coal.
Invention content
The purpose of the present invention is to provide a kind of suspended caving roof coal hydraulic supports for putting coal amount convenient for control, convenient for moving frame,
Shield top can be carried out in time with the job schedule of coalcutter.
To achieve the above object, the suspended caving roof coal hydraulic support that coal amount is put convenient for control of the invention includes pedestal, top
Beam, preceding joist and rear joist, are connected between preceding joist and rear joist by connecting plate；
Pedestal four corners position has connected up hydraulic vertical prop respectively, and the extension bar of hydraulic vertical prop is hinged with top beam upwards；
Preceding joist and rear joist are slidably connected by sliding connection structure and top beam respectively；
Top beam is internally provided with cavity, and cavity front end is equipped with the opening passed in and out for extensible canopy；Cavity front is equipped with shield top jack, shield
The extension bar of top jack is connected with forward extensible canopy, and extensible canopy is slidably matched with cavity sidewalls；The extension bar of shield top jack
It is a step pitch to the length that when projecting forwardly to its extreme extended position, extensible canopy stretches out top beam；
The top beam rear end portion stretches out the hydraulic vertical prop positioned at rear portion and is connected with gear cash jack downwards backward, keeps off cash jack
Extension bar extend downwardly and be connected with plate, top beam rear end is connected with downwards wall interior panel, and wall interior panel is extended downwardly by top beam
80 ± 10 centimetres, including wall interior panel goes along with sb. to guard him the cylinder body for keeping off cash jack and plate；The extension bar of gear cash jack is stretched downwards
When going out to its extreme position, plate bottom end connects with pedestal；The width of plate matches with pedestal；
The top beam front end is located at the front of pan frontward end, and working face ground when work below top beam front end is equipped with front
Transporter, front conveyer are equipped with coalcutter, and pedestal is equipped with rear portion transporter；Front conveyer and the equal edge of rear portion transporter
Left and right directions extends；
It is equipped between joist and top beam afterwards and moves top jack, the cylinder body or extension bar for moving top jack are hinged with rear joist, move
The extension bar or cylinder body for pushing up jack are hinged with top beam.
The sliding connection structure include be arranged top beam lower part sliding cavity, be connected to before preceding axis pin on joist, company
The rear pin shaft being connected on rear joist, the preceding hanging scaffold being connected on preceding axis pin and the rear hanging scaffold being connected on rear pin shaft；
Sliding cavity extends along the longitudinal direction and the front end opening setting of sliding cavity；The lower surface of sliding cavity offers along the longitudinal direction
Slot hole, slot hole are located at the medium position of sliding cavity left and right directions；
Preceding axis pin and rear pin shaft both pass through the slot hole and extend upwardly into sliding cavity, and the preceding hanging scaffold and rear hanging scaffold are respectively positioned on the cunning
Dynamic intracavitary, and the diameter of preceding hanging scaffold and rear hanging scaffold is all higher than the width of slot hole；Preceding hanging scaffold and rear hanging scaffold with sliding cavity side wall it
Between clearance fit or to be slidably matched.
The pan frontward end is equipped with advancing jack, and the cylinder body or extension bar of advancing jack are hinged on forward front conveyer
On, the extension bar or cylinder body of advancing jack are hinged on pedestal backward.
When work, it is multiple convenient for control put suspended caving roof coal hydraulic support of coal amount or so be arranged side by side jointly in working face
Place's shield is pushed up, and is connected by connector sleeve between the preceding joist of adjacent hydraulic support, is passed through between the rear joist of adjacent hydraulic support
Connector sleeve is connected；At working face the sum of the frictional force on the pedestal of each hydraulic support and ground be more than front conveyer and ground it
Between frictional force.
One step pitch is 630 millimeters；The extensible canopy front end is hinged with downwards face guard.
The invention also discloses the application methods of the above-mentioned suspended caving roof coal hydraulic support that coal amount is put convenient for control, mine
When, front conveyer is connected on working face ground, multiple to put suspended caving roof coal hydraulic support of coal amount or so simultaneously convenient for control
Top is protected in row's setting at working face jointly；Coalcutter is mined forward after a step pitch, carries out moving frame operation；
The first step for moving frame operation is interim shield top；
Start the shield top jack of each hydraulic support, shield item jack drives the extensible canopy of each hydraulic support to forward extend out top beam one
A step pitch carries out interim shield top to mined out position；
The second step for moving frame operation is mobile front conveyer；
Release the connection between front conveyer and working face ground, start the advancing jack of each hydraulic support, due to pedestal with
The frictional force on ground is more than the frictional force between front conveyer and ground, and advancing jack transports front using pedestal as fulcrum
Defeated machine elapses forward a step pitch, and then front conveyer is connected on working face ground；The stretching of advancing jack at this time
Bar is in stretching state；
The third step for moving frame operation is to move frame；
When moving frame, a mobile hydraulic support, then moves next hydraulic support again every time, until by the hydraulic pressure at working face
Holder movement finishes；
The method of a mobile hydraulic support includes following sub-step：
First sub-step is caving beam；The extension bar for operating each hydraulic vertical prop withdraws downwards 20 ± 2 centimetres, before so that top beam is fallen to
On joist and rear joist；
For preceding joist by the connector sleeve at preceding joist by the preceding joist support of adjacent hydraulic support, rear joist passes through rear joist at this time
The connector sleeve at place is by the rear joist support of adjacent hydraulic support, the upward out sliding of preceding hanging scaffold and rear hanging scaffold of the hydraulic support
Bottom of chamber wall, the preceding hanging scaffold and rear hanging scaffold of other each hydraulic supports press against on the bottom wall of corresponding sliding cavity thus before suspention accordingly
Joist and rear joist；
Second sub-step is synchronous forward movement top beam and pedestal, and displacement distance is a step pitch；
The operation of movable roof beam is：Operation moves top jack, its extension bar is made to stretch out；Due to rear joist and adjacent hydraulic support
It is connected afterwards by connector sleeve connection between joist, therefore joist is fulcrum after the jack of shifting top, and top beam is pushed forward, is pushed away
It is a step pitch to send distance；When top beam moves forward, preceding hanging scaffold and rear hanging scaffold are relatively moved along sliding cavity and top beam；
The operation of mobile base is to operate advancing jack, its extension bar is made to withdraw；Since front conveyer is connected to working face
On ground, therefore pedestal is pulled along a step pitch by advancing jack using front conveyer as fulcrum at this time；
Third sub-step is top lifting；
Each hydraulic vertical prop is operated, its extension bar is made to stretch out 20 ± 2 centimetres upwards, drives the upward top pressure face roof of top beam, it is real
Now shield top；After top lifting, preceding hanging scaffold and rear hanging scaffold are pressed on the bottom wall of sliding cavity to suspend preceding joist and rear joist in midair again；
The four steps for moving frame operation is the preceding joist of synchronizing moving and rear joist；
The use of third step is that the method moved in frame step moves forward the top beam of each hydraulic support at working face and pedestal one
Step pitch simultaneously makes top beam protect again after top, the shifting top jack of each hydraulic support at simultaneously operating working face, keeps each shifting top very heavy
The extension bar on top is withdrawn, and the rear joist of each hydraulic support is synchronized forward and pulls a step pitch；Joist by connecting accordingly after each
Joist synchronizes one step pitch of Forward before fishplate bar drives；During rear joist and preceding joist move forward, preceding hanging scaffold and rear hanging scaffold are along sliding
Dynamic chamber is relatively moved with top beam；Respectively by rear hanging scaffold and preceding sinking platform suspending on top beam after joist and preceding joist move forward afterwards.
During coal mining, when needing most quickly to put coal, the extension bar for keeping off cash jack is withdrawn completely, at this time plate and bottom
Clearance height between seat reaches highest, thus it is fastest to put coal；The distance that staff is extended downwardly by controlling plate
Coal speed is put to control, plate bottom end height is lower, and it is slower to put coal speed；
After putting coal, staff control gear cash jack extension bar extend substantially downward to extreme position, at this time plate downwards with
Pedestal connects, to prevent spoil from scurrying into working face.
The present invention has the advantage that：
The present invention need not integrally move frame when moving frame, but can distinguish movable roof beam, pedestal and preceding joist and rear joist,
Four hydraulic vertical props need not be positioned manually, a worker can operate, and be greatly saved artificial needed for shifting frame.
Compared with cantilever support, the suspended caving roof coal hydraulic support that coal amount is put convenient for control of the invention has pedestal, weight
The heart is relatively low, bears unbalance loading ability and is substantially improved, and hydraulic vertical prop can be avoided to insert bottom phenomenon.With existing non-suspension-movable hydraulic support
It compares, present invention saves the mechanisms such as caving shield and connecting rod, significantly reduce overall weight, convenient for moving frame.
The configuration of the present invention is simple, convenient for being transformed on the basis of existing cantilever support.Lighter in weight of the present invention, just
Working face is transported in fission, the Assembling at working face substantially increases adaptability, i.e., compared with previous hydraulic support
Just building incomplete or not wide enough occasion also in tunnel can use.
Rear portion transporter is set on the base, therefore rear portion transporter need not be individually moved, and has further facilitated shifting frame mistake
Journey.The connection structure of dumbbell type is used between each section of rear portion transporter, therefore one can be bent between each section of rear portion transporter
Determine angle, provides the foundation for independent move forward of pedestal of each hydraulic support.Rear portion transporter（Drag conveyor）For conventional equipment,
Existing drag conveyor can inherently be bent certain angle.
The specific setting of sliding connection structure, be not only convenient for preceding joist and rear joist respectively by preceding axis pin and rear pin shaft with
Opposite sliding occurs for top beam, also allows for preceding joist and rear joist respectively by preceding hanging scaffold and rear sinking platform suspending on top beam, and
Top beam can be enable to falling on preceding joist and rear joist, preceding hanging scaffold and rear hanging scaffold are upward with preceding axis pin and rear pin shaft at this time
Go deep into sliding cavity, to allow top beam by preceding joist and rear joist support.
In short, the specific setting of sliding connection structure, to realize that joist, joist are suspended in the opposite sliding of top beam joist, top beam in midair
These three effects of supporting top beam provide structural support.
The clearance height between cash jack, control plate and pedestal is kept off by operation, can easily control and put coal speed
Degree.After putting coal, and plate can be made to connect with pedestal downwards, prevent the possibility that spoil enters working face, improve work
Safety.
Extensible canopy front end is hinged with downwards face guard, can be played further by face guard when extensible canopy protects top temporarily
Shield top effect, prevent front top coal to be tilted towards below extensible canopy and fall.
The application method procedure of the present invention is reasonable, and fulcrum conversion can use a jack to realize that is pushed or pulled on moves
Make so that a jack not only can push or pull on a coupled component before fulcrum conversion, but also can prop up
Another coupled component is pulled or pushed after point conversion, has not only been conveniently operated, but also has saved the power plant for moving frame, is moved
Push shifter independent pushing and sliding need not be in addition used when frame, have been saved equipment cost, have been reduced working strength.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention；It is pushed away towards the forward direction in right the direction as present invention, i.e. working face in Fig. 1
Into direction；
Fig. 2 is the overlooking structure diagram of preceding joist and rear joist；
Fig. 3 is the A-A echelon sectional views of Fig. 2.
Specific implementation mode
As shown in Figure 1 to Figure 3, the suspended caving roof coal hydraulic support that coal amount is put convenient for control of the invention includes pedestal 1, top
Beam 2, preceding joist 3 and rear joist 4, are connected between preceding joist 3 and rear joist 4 by connecting plate 5；
1 four corners position of pedestal has connected up hydraulic vertical prop 6 respectively, and the extension bar of hydraulic vertical prop 6 is hinged with top beam 2 upwards；
Hydraulic vertical prop 6 is located at four corners position, is not to be placed exactly in four vertex.
Preceding joist 3 and rear joist 4 are slidably connected by sliding connection structure and top beam 2 respectively；
Top beam 2 is internally provided with cavity 7, and 7 front end of cavity is equipped with the opening passed in and out for extensible canopy 8；It is very heavy that 7 front of cavity is equipped with shield top
The extension bar on top 9, shield top jack 9 is connected with forward extensible canopy 8, extensible canopy 8 and 7 snug engagement of cavity；Shield top is very heavy
For the extension bar on top 9 to when projecting forwardly to its extreme extended position, extensible canopy 8 stretches out the length of top beam 2 for a step pitch；
2 rear end of the top beam stretches out the hydraulic vertical prop 6 positioned at rear portion and is connected with gear cash jack 10 downwards backward, keeps off cash thousand
The extension bar on jin top 10 extends downwardly and is connected with plate 11, and 2 rear end of top beam is connected with downwards wall interior panel 12, and wall interior panel 12 is by pushing up
Liang2Chu extends downwardly 80 ± 10 centimetres, including wall interior panel 12 goes along with sb. to guard him the cylinder body for keeping off cash jack 10 and plate 11；Keep off cash thousand
When the extension bar on jin top 10 is extended downwardly to its extreme position, 11 bottom end of plate connects with pedestal 1；The width and pedestal of plate 11
1 matches；
2 front end of the top beam is located at the front of 1 front end of pedestal, and working face ground when work below 2 front end of top beam is equipped with
Front conveyer, front conveyer are equipped with coalcutter, and pedestal 1 is equipped with rear portion transporter；Front conveyer and rear portion transport
Machine extends in left-right direction；
Front conveyer and rear portion transporter are drag conveyor.Coalcutter, front conveyer and rear portion transporter are normal
Device is advised, it is not shown.
It is equipped between joist 4 and top beam 2 afterwards and moves top jack, move the cylinder body for pushing up jack or extension bar and 4 phase of rear joist
Hinged, the extension bar or cylinder body for moving top jack are hinged with top beam 2.It is conventional components to move top jack, to prevent drawing miscellaneous
Disorderly, keep drawing clear, jack is pushed up in shifting not shown.
The sliding connection structure include be arranged 2 lower part of top beam sliding cavity 13, be connected to before preceding axis pin on joist 3
14, the rear pin shaft 15 being connected on rear joist 4, preceding hanging scaffold 16 before being connected on axis pin 14 and is connected on rear pin shaft 15
Hanging scaffold 17 afterwards；
Sliding cavity 13 extends along the longitudinal direction and the front end opening setting of sliding cavity 13；The lower surface of sliding cavity 13 is along the longitudinal direction
Slot hole is offered, slot hole is located at the medium position of 13 left and right directions of sliding cavity；Slot hole is conventional structure, not shown.
Preceding axis pin 14 and rear pin shaft 15 both pass through the slot hole and extend upwardly into sliding cavity 13, the preceding hanging scaffold 16 and rear hanging scaffold
17 are respectively positioned in the sliding cavity 13, and the diameter of preceding hanging scaffold 16 and rear hanging scaffold 17 is all higher than the width of slot hole in the lateral direction
Degree；Preceding hanging scaffold 16 and rear hanging scaffold 17 for clearance fit or are slidably matched between 13 side wall of sliding cavity.
The specific setting of sliding connection structure is not only convenient for preceding joist 3 and rear joist 4 respectively by preceding axis pin 14 and rear pin shaft 15
Occur to slide relatively with top beam 2, also allows for preceding joist 3 and rear joist 4 is suspended in top by preceding hanging scaffold 16 and rear hanging scaffold 17 respectively
On beam 2, and top beam 2 can be enable to falling on preceding joist 3 and rear joist 4, at this time preceding hanging scaffold 16 and rear hanging scaffold 17 with
Preceding axis pin 14 and rear pin shaft 15 go deep into sliding cavity 13 upwards, to allow top beam 2 to be supported by preceding joist 3 and rear joist 4.
In short, the specific setting of sliding connection structure, for realize top beam 2 it is opposite with joist slide, the suspention of top beam 2 joist,
These three effects of joist support top beam 2 provide structural support.
1 front end of the pedestal is equipped with advancing jack 18, before the cylinder body or extension bar of advancing jack 18 are hinged on forward
On portion's transporter, the extension bar or cylinder body of advancing jack 18 are hinged on backward on pedestal 1.
When work, it is multiple convenient for control put suspended caving roof coal hydraulic support of coal amount or so be arranged side by side jointly in working face
Place shield top, the left and right width of working face determine to put the quantity of the suspended caving roof coal hydraulic support of coal amount convenient for control.
It is connected by connector sleeve 19 between the preceding joist 3 of adjacent hydraulic support, between the rear joist 4 of adjacent hydraulic support
It is connected by connector sleeve 19；The sum of the pedestal 1 of each hydraulic support and the frictional force on ground are more than front conveyer at working face
Frictional force between ground.
One step pitch is 630 millimeters.8 front end of the extensible canopy is hinged with downwards face guard 20.
When coal mining, front conveyer is connected on working face ground, multiple suspended Sub-Level Caving liquid that coal amount is put convenient for control
Press holder（Referred to as " hydraulic support "）Left and right is arranged side by side protects top at working face jointly；Coalcutter is mined forward a step pitch
Later, it carries out moving frame operation；
The first step for moving frame operation is interim shield top；
Start the shield top jack 9 of each hydraulic support, shield item jack drives the extensible canopy 8 of each hydraulic support to forward extend out top beam
2 one step pitches carry out interim shield top to mined out position；
The second step for moving frame operation is mobile front conveyer；
The connection between front conveyer and working face ground is released, starts the advancing jack 18 of each hydraulic support, due to pedestal 1
Be more than the frictional force between front conveyer and ground with the frictional force on ground, advancing jack 18 is fulcrum with pedestal 1, will before
Portion's transporter elapses forward a step pitch, and then front conveyer is connected on working face ground；Advancing jack 18 at this time
Extension bar be in stretching state；
The third step for moving frame operation is to move frame；
When moving frame, a mobile hydraulic support, then moves next hydraulic support again every time, until by the hydraulic pressure at working face
Holder movement finishes；
The method of a mobile hydraulic support includes following sub-step：
First sub-step is caving beam 2；The extension bar for operating each hydraulic vertical prop 6 withdraws downwards 20 ± 2 centimetres, and top beam 2 is made to fall
On to preceding joist 3 and rear joist 4；
Preceding joist 3 is supported by the connector sleeve 19 at preceding joist 3 by the preceding joist 3 of adjacent hydraulic support at this time, and rear joist 4 passes through
The connector sleeve 19 at joist 4 is supported by the rear joist 4 of adjacent hydraulic support afterwards, the preceding hanging scaffold 16 and rear hanging scaffold 17 of the hydraulic support
Upward out 13 bottom wall of sliding cavity, the preceding hanging scaffold 16 and rear hanging scaffold 17 of other each hydraulic supports press against corresponding sliding cavity 13
To the corresponding preceding joist 3 of suspention and rear joist 4 on bottom wall；
Second sub-step is synchronous forward movement top beam 2 and pedestal 1, and displacement distance is a step pitch；
The operation of movable roof beam 2 is：Operation moves top jack, its extension bar is made to stretch out；Due to the liquid adjacent with left and right of rear joist 4
It is connected by the connection of connector sleeve 19 between the rear joist 4 of pressure holder, therefore joist 4 is fulcrum after the jack of shifting top, will be pushed up
Beam 2 pushes forward, and push distance is a step pitch；When top beam 2 moves forward, preceding hanging scaffold 16 and rear hanging scaffold 17 are along sliding cavity 13 and top beam
2 relative movements；
The operation of mobile base 1 is to operate advancing jack 18, its extension bar is made to withdraw；Since front conveyer is connected to work
Make on the ground of face, therefore pedestal 1 is pulled along a step pitch by advancing jack 18 using front conveyer as fulcrum at this time；
Third sub-step is top lifting；
Each hydraulic vertical prop 6 is operated, its extension bar is made to stretch out 20 ± 2 centimetres upwards, drives 2 upward top pressure face roof of top beam,
Realize shield top；After top lifting, preceding hanging scaffold 16 and rear hanging scaffold 17 are pressed on the bottom wall of sliding cavity 13 to suspend in midair preceding joist 3 with after again
Joist 4；
The four steps for moving frame operation is the preceding joist 3 of synchronizing moving and rear joist 4；
The use of third step is that the top beam 2 of each hydraulic support at working face and pedestal 1 are moved forward one by the method moved in frame step
A step pitch simultaneously makes top beam 2 protect again after top, and the shifting top jack of each hydraulic support at simultaneously operating working face makes each shifting push up
The extension bar of jack is withdrawn, and the rear joist 4 of each hydraulic support is pulled a step pitch to preamble；Joist 4 passes through phase after each
Joist 3 synchronizes one step pitch of Forward before the connecting plate 5 answered drives；During rear joist 4 and preceding joist 3 move forward, preceding hanging scaffold 16
It is relatively moved along sliding cavity 13 and top beam 2 with rear hanging scaffold 17；Joist 4 and preceding joist 3 pass through 17 He of rear hanging scaffold respectively after moving forward afterwards
Preceding hanging scaffold 16 is suspended on top beam 2.Joist 4 is suspended in by rear hanging scaffold 17 on top beam 2 after i.e., and preceding joist 3 passes through preceding hanging scaffold 16
It is suspended on top beam 2.
During coal mining, when needing most quickly to put coal, the extension bar for keeping off cash jack 10 is withdrawn completely, at this time plate 11
Clearance height between pedestal 1 reaches highest, thus it is fastest to put coal；Staff is extended downwardly by controlling plate 11
Distance put coal speed to control, 11 bottom end height of plate is lower, and it is slower to put coal speed；
After putting coal, the extension bar that staff controls gear cash jack 10 extends substantially downward to extreme position, at this time plate 11 to
It is lower to connect with pedestal 1, to prevent spoil from scurrying into working face.
The above embodiments are only used to illustrate and not limit the technical solutions of the present invention, although with reference to above-described embodiment to this hair
It is bright to be described in detail, it will be understood by those of ordinary skill in the art that：Still can the present invention be modified or be waited
With replacing, without departing from the spirit or scope of the invention, or any substitutions, the power in the present invention should all be covered
In sharp claimed range.
Claims (7)
1. putting the suspended caving roof coal hydraulic support of coal amount convenient for control, it is characterised in that：Including pedestal, top beam, preceding joist and after
Joist is connected between preceding joist and rear joist by connecting plate；
Pedestal four corners position has connected up hydraulic vertical prop respectively, and the extension bar of hydraulic vertical prop is hinged with top beam upwards；
Preceding joist and rear joist are slidably connected by sliding connection structure and top beam respectively；
Top beam is internally provided with cavity, and cavity front end is equipped with the opening passed in and out for extensible canopy；Cavity front is equipped with shield top jack, shield
The extension bar of top jack is connected with forward extensible canopy, and extensible canopy is slidably matched with cavity sidewalls；The extension bar of shield top jack
It is a step pitch to the length that when projecting forwardly to its extreme extended position, extensible canopy stretches out top beam；
The top beam rear end portion stretches out the hydraulic vertical prop positioned at rear portion and is connected with gear cash jack downwards backward, keeps off cash jack
Extension bar extend downwardly and be connected with plate, top beam rear end is connected with downwards wall interior panel, and wall interior panel is extended downwardly by top beam
80 ± 10 centimetres, including wall interior panel goes along with sb. to guard him the cylinder body for keeping off cash jack and plate；The extension bar of gear cash jack is stretched downwards
When going out to its extreme position, plate bottom end connects with pedestal；The width of plate matches with pedestal；
The top beam front end is located at the front of pan frontward end, and working face ground when work below top beam front end is equipped with front
Transporter, front conveyer are equipped with coalcutter, and pedestal is equipped with rear portion transporter；Front conveyer and the equal edge of rear portion transporter
Left and right directions extends；
It is equipped between joist and top beam afterwards and moves top jack, the cylinder body or extension bar for moving top jack are hinged with rear joist, move
The extension bar or cylinder body for pushing up jack are hinged with top beam.
2. the suspended caving roof coal hydraulic support according to claim 1 for putting coal amount convenient for control, it is characterised in that：The cunning
Dynamic connection structure include be arranged top beam lower part sliding cavity, be connected to before preceding axis pin on joist, be connected to after on joist
Rear pin shaft, the preceding hanging scaffold being connected on preceding axis pin and the rear hanging scaffold being connected on rear pin shaft；
Sliding cavity extends along the longitudinal direction and the front end opening setting of sliding cavity；The lower surface of sliding cavity offers along the longitudinal direction
Slot hole, slot hole are located at the medium position of sliding cavity left and right directions；
Preceding axis pin and rear pin shaft both pass through the slot hole and extend upwardly into sliding cavity, and the preceding hanging scaffold and rear hanging scaffold are respectively positioned on the cunning
Dynamic intracavitary, and the diameter of preceding hanging scaffold and rear hanging scaffold is all higher than the width of slot hole；Preceding hanging scaffold and rear hanging scaffold with sliding cavity side wall it
Between clearance fit or to be slidably matched.
3. the suspended caving roof coal hydraulic support according to claim 1 or 2 for putting coal amount convenient for control, it is characterised in that：Institute
It states pan frontward end and is equipped with advancing jack, the cylinder body or extension bar of advancing jack are hinged on front conveyer forward, are elapsed
The extension bar or cylinder body of jack are hinged on pedestal backward.
4. the suspended caving roof coal hydraulic support according to claim 3 for putting coal amount convenient for control, it is characterised in that：Work
When, it is multiple to put suspended caving roof coal hydraulic support of coal amount or so shield top at working face jointly arranged side by side convenient for control, it is adjacent
It is connected by connector sleeve between the preceding joist of hydraulic support, is connected by connector sleeve between the rear joist of adjacent hydraulic support
It connects；The sum of the frictional force on the pedestal of each hydraulic support and ground is more than the friction between front conveyer and ground at working face
Power.
5. the suspended caving roof coal hydraulic support according to claim 3 for putting coal amount convenient for control, it is characterised in that：Described one
A step pitch is 630 millimeters；The extensible canopy front end is hinged with downwards face guard.
6. the application method of the suspended caving roof coal hydraulic support of coal amount is put described in claim 4 convenient for control, it is characterised in that：
When coal mining, front conveyer is connected on working face ground, multiple suspended Sub-Level Caving hydraulic pressure branch that coal amount is put convenient for control
Frame or so is arranged side by side protects top at working face jointly；Coalcutter is mined forward after a step pitch, carries out moving frame operation；
The first step for moving frame operation is interim shield top；
Start the shield top jack of each hydraulic support, shield item jack drives the extensible canopy of each hydraulic support to forward extend out top beam one
A step pitch carries out interim shield top to mined out position；
The second step for moving frame operation is mobile front conveyer；
Release the connection between front conveyer and working face ground, start the advancing jack of each hydraulic support, due to pedestal with
The frictional force on ground is more than the frictional force between front conveyer and ground, and advancing jack transports front using pedestal as fulcrum
Defeated machine elapses forward a step pitch, and then front conveyer is connected on working face ground；The stretching of advancing jack at this time
Bar is in stretching state；
The third step for moving frame operation is to move frame；
When moving frame, a mobile hydraulic support, then moves next hydraulic support again every time, until by the hydraulic pressure at working face
Holder movement finishes；
The method of a mobile hydraulic support includes following sub-step：
First sub-step is caving beam；The extension bar for operating each hydraulic vertical prop withdraws downwards 20 ± 2 centimetres, before so that top beam is fallen to
On joist and rear joist；
For preceding joist by the connector sleeve at preceding joist by the preceding joist support of adjacent hydraulic support, rear joist passes through rear joist at this time
The connector sleeve at place is by the rear joist support of adjacent hydraulic support, the upward out sliding of preceding hanging scaffold and rear hanging scaffold of the hydraulic support
Bottom of chamber wall, the preceding hanging scaffold and rear hanging scaffold of other each hydraulic supports press against on the bottom wall of corresponding sliding cavity thus before suspention accordingly
Joist and rear joist；
Second sub-step is synchronous forward movement top beam and pedestal, and displacement distance is a step pitch；
The operation of movable roof beam is：Operation moves top jack, its extension bar is made to stretch out；Due to rear joist and adjacent hydraulic support
It is connected afterwards by connector sleeve connection between joist, therefore joist is fulcrum after the jack of shifting top, and top beam is pushed forward, is pushed away
It is a step pitch to send distance；When top beam moves forward, preceding hanging scaffold and rear hanging scaffold are relatively moved along sliding cavity and top beam；
The operation of mobile base is to operate advancing jack, its extension bar is made to withdraw；Since front conveyer is connected to working face
On ground, therefore pedestal is pulled along a step pitch by advancing jack using front conveyer as fulcrum at this time；
Third sub-step is top lifting；
Each hydraulic vertical prop is operated, its extension bar is made to stretch out 20 ± 2 centimetres upwards, drives the upward top pressure face roof of top beam, it is real
Now shield top；After top lifting, preceding hanging scaffold and rear hanging scaffold are pressed on the bottom wall of sliding cavity to suspend preceding joist and rear joist in midair again；
The four steps for moving frame operation is the preceding joist of synchronizing moving and rear joist；
The use of third step is that the method moved in frame step moves forward the top beam of each hydraulic support at working face and pedestal one
Step pitch simultaneously makes top beam protect again after top, the shifting top jack of each hydraulic support at simultaneously operating working face, keeps each shifting top very heavy
The extension bar on top is withdrawn, and the rear joist of each hydraulic support is synchronized forward and pulls a step pitch；Joist by connecting accordingly after each
Joist synchronizes one step pitch of Forward before fishplate bar drives；During rear joist and preceding joist move forward, preceding hanging scaffold and rear hanging scaffold are along sliding
Dynamic chamber is relatively moved with top beam；Respectively by rear hanging scaffold and preceding sinking platform suspending on top beam after joist and preceding joist move forward afterwards.
7. application method according to claim 6, it is characterised in that：During coal mining, when needing most quickly to put coal, it will keep off
The extension bar of cash jack is withdrawn completely, and the clearance height between plate and pedestal reaches highest at this time, thus puts coal speed most
Soon；Staff puts coal speed by controlling the distance that plate extends downwardly to control, and plate bottom end height is lower, puts coal speed
It is slower；
After putting coal, staff control gear cash jack extension bar extend substantially downward to extreme position, at this time plate downwards with
Pedestal connects, to prevent spoil from scurrying into working face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810689077.2A CN108547654B (en) | 2018-06-28 | 2018-06-28 | Suspension top coal caving hydraulic support convenient for controlling coal caving amount and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810689077.2A CN108547654B (en) | 2018-06-28 | 2018-06-28 | Suspension top coal caving hydraulic support convenient for controlling coal caving amount and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108547654A true CN108547654A (en) | 2018-09-18 |
| CN108547654B CN108547654B (en) | 2024-01-26 |
Family
ID=63493077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810689077.2A Active CN108547654B (en) | 2018-06-28 | 2018-06-28 | Suspension top coal caving hydraulic support convenient for controlling coal caving amount and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108547654B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113023586A (en) * | 2021-03-29 | 2021-06-25 | 徐州重型机械有限公司 | Auxiliary arm middle support and engineering vehicle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101440711A (en) * | 2008-11-26 | 2009-05-27 | 枣庄矿业（集团）有限责任公司第二机械厂 | Large extraction high caving roof coal hydraulic support |
| WO2009089769A1 (en) * | 2008-01-10 | 2009-07-23 | Zeyu Li | A light-duty hydraulic bracket |
| CN201902223U (en) * | 2011-03-29 | 2011-07-20 | 高九华 | Hydraulic swing link type top caving coal hydraulic support |
| CN202325592U (en) * | 2011-11-15 | 2012-07-11 | 北京宇田世纪矿山设备有限公司 | Four-pillar supporting type double-oscillating-bar sublevel caving coal hydraulic bracket |
| CN202483603U (en) * | 2012-03-26 | 2012-10-10 | 河南万合机械有限公司 | Novel light hydraulic support |
| CN202645609U (en) * | 2012-06-26 | 2013-01-02 | 王建州 | Dual-stabilizer-bar light type hydraulic bracket |
| CN208364159U (en) * | 2018-06-28 | 2019-01-11 | 河南万合机械有限公司 | Convenient for controlling the suspended caving roof coal hydraulic support for putting coal amount |
-
2018
- 2018-06-28 CN CN201810689077.2A patent/CN108547654B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009089769A1 (en) * | 2008-01-10 | 2009-07-23 | Zeyu Li | A light-duty hydraulic bracket |
| CN101440711A (en) * | 2008-11-26 | 2009-05-27 | 枣庄矿业（集团）有限责任公司第二机械厂 | Large extraction high caving roof coal hydraulic support |
| CN201902223U (en) * | 2011-03-29 | 2011-07-20 | 高九华 | Hydraulic swing link type top caving coal hydraulic support |
| CN202325592U (en) * | 2011-11-15 | 2012-07-11 | 北京宇田世纪矿山设备有限公司 | Four-pillar supporting type double-oscillating-bar sublevel caving coal hydraulic bracket |
| CN202483603U (en) * | 2012-03-26 | 2012-10-10 | 河南万合机械有限公司 | Novel light hydraulic support |
| CN202645609U (en) * | 2012-06-26 | 2013-01-02 | 王建州 | Dual-stabilizer-bar light type hydraulic bracket |
| CN208364159U (en) * | 2018-06-28 | 2019-01-11 | 河南万合机械有限公司 | Convenient for controlling the suspended caving roof coal hydraulic support for putting coal amount |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113023586A (en) * | 2021-03-29 | 2021-06-25 | 徐州重型机械有限公司 | Auxiliary arm middle support and engineering vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108547654B (en) | 2024-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5743679A (en) | Hydraulic shield support frame | |
| CN101457652B (en) | Overlarge mining height hydraulic support | |
| CN208364159U (en) | Convenient for controlling the suspended caving roof coal hydraulic support for putting coal amount | |
| CN111396104B (en) | Fully-mechanized mining face end conveying and supporting integrated supporting device | |
| CN111779480A (en) | Short-body tunneling robot and using method thereof | |
| CN103397888A (en) | Frame device for lifting and transporting tunneling head-on temporary bracket, and operation method | |
| CN108547654A (en) | The suspended caving roof coal hydraulic support and its application method of coal amount are put convenient for control | |
| CN103061765A (en) | Z type horizontal stratification top coal caving coal mining method in half-edge thick coal seam | |
| CN104695996B (en) | It is a kind of to carry entirely from anti-skidding hydraulic support of being shifted elsewhere for garrison duty | |
| CN105484783A (en) | Parallelogram hydraulic support suitable for large-dip-angle coal-seam long-wall false dipping working face | |
| CN108468560B (en) | Device and method for mining pseudo-depression inclined long-wall Z-shaped bracket of steep coal seam | |
| CN201953390U (en) | Hydraulic walking advance support equipment | |
| CN201381864Y (en) | Split-type front and rear end head hydraulic support | |
| CN105178990A (en) | Series-connection hydraulic support for tunnel floor dinting | |
| CN101482025B (en) | Light hydraulic support | |
| US3355213A (en) | Mine roof supports and conveyors for use in conjunction therewith | |
| CN116677386A (en) | Shaft heading machine and construction method thereof | |
| CN201474714U (en) | Pulling top beam hydraulic support frame | |
| CN102116163B (en) | Vertical hydraulic bracket | |
| CN102865089B (en) | Full-hydraulic self-moving type advancing temporary support and using method thereof | |
| CN101493014A (en) | Coal mine self-moving sectional shelf-unit | |
| CN212272190U (en) | Short-body tunneling robot | |
| US3216202A (en) | Roof supporting means for mines | |
| CN208330431U (en) | A kind of half-edge coal seam puppet is bowed plagioclase wall Z-shaped supporting frame quarrying apparatus | |
| CN205445467U (en) | Mining pressure relief vent drilling equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |