CN106121698B - The preceding spy frame of gib and the temporary support device for using the preceding spy frame - Google Patents
The preceding spy frame of gib and the temporary support device for using the preceding spy frame Download PDFInfo
- Publication number
- CN106121698B CN106121698B CN201610731312.9A CN201610731312A CN106121698B CN 106121698 B CN106121698 B CN 106121698B CN 201610731312 A CN201610731312 A CN 201610731312A CN 106121698 B CN106121698 B CN 106121698B
- Authority
- CN
- China
- Prior art keywords
- frame
- support
- top surface
- gib
- surface supporting
- 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.)
- Expired - Fee Related
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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
- E21D23/0086—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor in galleries
- E21D23/0095—Temporary supports at the driving front
-
- 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
Abstract
The present invention relates to the preceding spy frame of gib and use the preceding temporary support device for visiting frame.The preceding spy frame of gib, defining the preceding frame of visiting has the depth direction consistent with the extending direction in tunnel and the transverse direction consistent with the width direction in tunnel section when in use, the then preceding tunnel top surface supporting beam visited frame and there are twice or more in its depth direction, and/or in its transverse direction with tunnel top surface supporting beams more than twice, preceding spy frame further includes the preceding spy frame support structure connecting simultaneously with tunnel top surface supporting beam described at least twice.The tunnel top surface supporting beams of twice or more can be supported simultaneously by preceding spy frame support structure, compared with the existing technology in forestope or hydraulic prop form, can at least save the workload of half, be conducive to improve operating efficiency.
Description
Technical field
The present invention relates to the preceding spy frame of gib and use the preceding temporary support device for visiting frame.
Background technique
Rock roadway in coal mine drift section is stalk semicircular arch, and permanent support mode is " Bolt net and jet+anchor cable " supporting, is made in explosion
, need to be to exposed tunnel permanent support after industry, balkstone, which is caving, before progress permanent support, when to prevent sky from pushing up operation jeopardizes work
The personal safety of industry personnel need to take reliable gib protection operating personnel.Although existing hydraulic support can play
Good supporting effect, but it is expensive, mobility is poor, using limited.
Gib at present is generally front canopy support, such as Authorization Notice No. is the back of the Chinese patent of CN2656637Y
Recorded in scape technology segment, front canopy support is that forestope (steel pipe equipped with hanging ring) is first suspended on the threaded anchor of back
The exposed parts of bar, fully-mechanized digging machine has cut recession one end distance after a row, then the top plate metal mesh, the steel band that lay are provoked, preceding
The steel pipe for moving forestope, holds top plate metal mesh, steel band, after adding real plus jail with square wood strip, sets top plate and both sides anchor pole, then after
Forestope a distance is removed, so that fully-mechanized digging machine is tunneled, is so recycled.But which presence needs to move repeatedly preceding spy
Beam needs the problem of side's of installing wood strip, and supporting is inconvenient, time-consuming, and due to the limitation of hanging ring length, top plate out-of-flatness
When forestope be not available.For this purpose, disclosing a kind of improved temporary support device, including monomer hydraulic branch in above-mentioned patent
The piston rod top end of column, top beam, appropriate position and hydraulic prop in the middle part of top beam is articulated and connected, hydraulic prop by
Underground hydraulic pressure station or light-duty emulsification pump etc. provide pressure.After fully-mechanized digging machine exits, row's hydraulic prop is set, what is laid
Top plate metal mesh, steel band are placed on top beam, and manipulation hydraulic station makes hydraulic prop pass through top beam for top plate metal mesh, steel band top
It rises, formation gib, after permanent support to be performed, by hydraulic prop pressure release, top beam decline can be propped up next time
Shield.
But existing temporary support device needs to be arranged more forestopes, or more hydraulic props of setting, and
And needing to guarantee the alignment of each forestope or hydraulic prop, workload is big, and process is cumbersome, and operation is inconvenient.
Summary of the invention
The object of the present invention is to provide a kind of preceding spy frame of gib and the preceding temporary support device for visiting frame is used, with
Setting temporary support device workload is big in the prior art for solution, and process is cumbersome, the problem of operation inconvenience.
To achieve the above object, the present invention in the technical solution adopted is that: the preceding spy frame of gib, define it is described before spy
Frame has the depth direction consistent with the extending direction in tunnel when in use and consistent with the width direction in tunnel section
Lateral, then the preceding spy frame has the tunnel top surface supporting beam of twice or more in its depth direction, and/or in its transverse direction
With tunnel top surface supporting beams more than twice, preceding spy frame further includes connecting simultaneously with tunnel top surface supporting beam described at least twice
Preceding spy frame support structure.
It includes the right cylinder for being connected to tunnel top surface supporting beam lower part that frame support structure is visited before described, further includes being connected to directly
Diagonal brace between column and tunnel top surface supporting beam.
Tunnel top surface supporting beam includes the longitudinal support beam extended along its depth direction and the cross being laterally extended along it
To supporting beam, longitudinal support beam is coplanar with cross-brace beam.
The lower end of the right cylinder is equipped with for the releasable connection knot with the removable fixation of the supporting device of feed screw nut form
Structure.
Each tunnel top surface supporting beam visits the curved support face of frame transverse direction before being developed across.
Each tunnel top surface supporting beam forms main bracing frame, and the lateral at least side of the main bracing frame is hinged
There is auxiliary support frame, the hinge axes of auxiliary support frame extend along the preceding depth direction for visiting frame, preceding spy frame support structure and auxiliary
Telescopic regulating mechanism is hinged with by shaft between support frame.
Telescopic regulating mechanism includes the auxiliary threaded rod hinged with auxiliary support frame and the branch hinged with preceding spy frame support structure
Screw rod is supportted, the auxiliary threaded rod one end and studdle far from auxiliary support frame pass through far from preceding one end for visiting frame support structure
Reversed is threaded in the main body of same flower basket bolt.
The both lateral sides of the main bracing frame are hinged with auxiliary support frame, and the plane where auxiliary support frame is arc
Face.
It is removable shaft that the shaft between frame support structure and auxiliary support frame is visited before described.
Temporary support device visits the supporting device of frame including preceding spy frame and before being used to support, and visiting frame before definition is described has
The depth direction consistent with the extending direction in tunnel and the transverse direction consistent with the width direction in tunnel section when in use, institute
The tunnel top surface supporting beam that frame has twice or more in its depth direction is visited before stating, and/or there are twice in its transverse direction
Above tunnel top surface supporting beam, preceding spy frame further includes the preceding spy frame connecting simultaneously with tunnel top surface supporting beam described at least twice
Support construction.
It includes the right cylinder for being connected to tunnel top surface supporting beam lower part that frame support structure is visited before described, further includes being connected to directly
Diagonal brace between column and tunnel top surface supporting beam.
Tunnel top surface supporting beam includes the longitudinal support beam extended along its depth direction and the cross being laterally extended along it
To supporting beam, longitudinal support beam is coplanar with cross-brace beam.
The lower end of the right cylinder is equipped with for the releasable connection knot with the removable fixation of the supporting device of feed screw nut form
Structure.
Each tunnel top surface supporting beam visits the curved support face of frame transverse direction before being developed across.
Each tunnel top surface supporting beam forms main bracing frame, and the lateral at least side of the main bracing frame is hinged
There is auxiliary support frame, the hinge axes of auxiliary support frame extend along the preceding depth direction for visiting frame, preceding spy frame support structure and auxiliary
Telescopic regulating mechanism is hinged with by shaft between support frame.
Telescopic regulating mechanism includes the auxiliary threaded rod hinged with auxiliary support frame and the branch hinged with preceding spy frame support structure
Screw rod is supportted, the auxiliary threaded rod one end and studdle far from auxiliary support frame pass through far from preceding one end for visiting frame support structure
Reversed is threaded in the main body of same flower basket bolt.
The both lateral sides of the main bracing frame are hinged with auxiliary support frame, and the plane where auxiliary support frame is arc
Face.
It is removable shaft that the shaft between frame support structure and auxiliary support frame is visited before described.
The utility model has the advantages that the present invention is by adopting the above technical scheme, the preceding tunnel visited frame and there are twice or more in its depth direction
Top surface supporting beam, and/or in its transverse direction with tunnel top surface supporting beams more than twice, preceding spys frame further include and at least
The preceding spy frame support structure that tunnel top surface supporting beam described in twice connects simultaneously, in this way, can be same by preceding spy frame support structure
When support the tunnel top surface supporting beams of twice or more, compared with the existing technology in forestope or hydraulic prop shape
Formula can at least save the workload of half, be conducive to improve operating efficiency.
Further, each tunnel top surface supporting beam forms main bracing frame, and the transverse direction of the main bracing frame is extremely
Few side is hinged with auxiliary support frame, and the hinge axes of auxiliary support frame extend along the preceding depth direction for visiting frame, preceding spy frame support
Telescopic regulating mechanism is hinged with by shaft between structure and auxiliary support frame, by adjusting telescopic regulating mechanism, before capable of making
It visits frame and adapts to different drift section sizes, bearing height is adjusted according to tunnel radian scene, applicability is good, realizes to tunnel
Effective support strength reduces back top operation, guarantees control top range, improves safety.
Further, telescopic regulating mechanism includes passing through hinged auxiliary threaded rod and and main bracing frame with auxiliary support frame
Hinged driving screw, one end and driving screw threaded one end far from main bracing frame of the auxiliary threaded rod far from auxiliary support frame
It is connected in the main body of same flower basket bolt, auxiliary support frame can be realized by pure mechanic structure using the form of flower basket bolt
Adjustment, need not rely on hydraulic device, be convenient for operation.
Further, it is removable shaft that the shaft between frame support structure and auxiliary support frame is visited before described, when installation, first
Stationary body support frame, then install auxiliary support frame additional, it can reduce task difficulty and labor intensity when installation, improve operation effect
Rate, assembly and disassembly are more convenient.
The lower end of the right cylinder is equipped with for the releasable connection knot with the removable fixation of the supporting device of feed screw nut form
Structure.
Further, the lower end of the right cylinder be equipped with for the removable fixation of the supporting device of feed screw nut form can
It tears connection structure open, the preceding separation for visiting frame and supporting device can be realized using releasable connection structure, so as to separated transport, make
Used time assembling；Meanwhile supporting device can be the supporting device of feed screw nut form, fix for example including top and stop sleeve
Lead screw, further include the pedestal plugged for lead screw, be rotatably equipped on pedestal with threads of lead screw transmission cooperation adjusting nut.Make
Used time on the ground by pedestal support rotates adjusting nut, lead screw can be driven to go up and down, and then frame lifting is visited before driving, and realizes
Gib.In this way, a whole set of temporary support device uses the drive mechanism of Purely mechanical completely, connection hydraulic device is not needed,
It is easy to use, it is mobile flexible, it is easy to disassemble, the operating efficiency of gib can be effectively improved, labor intensity of workers is mitigated.It is excellent
Lead screw spline structure is arranged on pedestal for selection of land, avoids lead screw and preceding spys frame when rotation adjusting nut from rotating, so that tune
It saves more convenient.Preferably, rotation stop projection is equipped at the top of lead screw, the sliding slot in rotation stop projection and stop sleeve is along stop sleeve
Axially directed cooperation, and the circumferential block with stop sleeve along stop sleeve cooperates, and stop sleeve is arranged and is fixed to
The separation of frame and supporting device is visited while guaranteeing secure support in lead screw top before capable of conveniently realizing, easy to disassemble,
Reduce labor intensity of workers.
Detailed description of the invention
Fig. 1 is the gib main view of preceding one embodiment for visiting frame in the present invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the left view of Fig. 1；
Fig. 4 is the structural schematic diagram of another embodiment of temporary support device in the present invention.
The corresponding title of each appended drawing reference in figure are as follows: 10- main bracing frame, 11- longitudinal support beam, 12- cross-brace beam,
20- auxiliary support frame, 30- split pin, 41- right cylinder, 42- diagonal brace, 43- stop sleeve, 44- sliding slot, the hinged otic placode of 51-, 52-
Studdle, 53- auxiliary threaded rod, 54- flower basket bolt main body, 61- pedestal, the two-way lead screw of 62-, 63- handle, 64- connection sleeve,
65- rotation stop projection, the tunnel 66- ground.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
Gib of the present invention with preceding one embodiment for visiting frame as shown in Fig. 1 ~ Fig. 3, to visit frame before " biplane " arc,
Including main bracing frame 10, auxiliary support frame 20 and preceding spy frame support structure, preceding spy frame support structure includes being connected to tunnel top
The right cylinder 41 of face supporting beam lower part further includes the diagonal brace 42 being connected between right cylinder 41 and tunnel top surface supporting beam.Entirely
Preceding spy frame is mainly formed using steel-pipe welding, and the cost of material is low, easy to make.
Defining the preceding frame of visiting has depth direction consistent with the extending direction in tunnel when in use and cuts with tunnel
The consistent transverse direction of the width direction in face, main bracing frame 10 include four cross-brace beams being arranged side by side along its depth direction
12, it further include five longitudinal support beams 11 being arranged laterally side by side along it, longitudinal support beam 11 and cross-brace beam 12 mutually weld
Fixation is connect, and is coplanar with along cambered surface, curved support structure corresponding with tunnel top surface is formed.
Right cylinder 41 is weldingly fixed on and the length side of longitudinal support beam 11 corresponding at curved support structural top center
To middle part, extend straight down.Diagonal brace 42 has four, including being connected in both ends and the right cylinder 41 of the longitudinal support beam 11
Two diagonal braces 42 between portion further include being connected to the middle part of 11 length direction of laterally outermost two longitudinal support beams and straight
Two diagonal braces 42 between the middle part of column 41.Four only form stable support construction, guarantee that the load-bearing of main bracing frame 10 is strong
Degree.The bottom of right cylinder 41 is welded with the stop sleeve 43 that lower end has opening, and the barrel of stop sleeve 43 is equipped with two
The road sliding slot 44 axially extending along stop sleeve 43, the line of twice sliding slot 44 pass through the axis and each sliding slot 44 of stop sleeve 43
Lower end be equipped with opening, be used for and supporting device cooperate, realize to it is preceding visit frame support.
Auxiliary support frame 20 is equipped with two, is japanese character frame structure, is hinged on body supports by removable shaft respectively
The both lateral sides of frame 10.Detachable connecting pin is split pin 30, can easily be dismounted.The hinge axes of auxiliary support frame 20 are along preceding spy
The depth direction of frame extends, and is hinged with telescopic regulating mechanism by shaft between preceding spy frame support structure and auxiliary support frame 20,
Telescopic regulating mechanism includes the auxiliary spiral shell hinged by shaft with the hinged otic placode 51 in the transverse beam at 20 middle part of auxiliary support frame
Bar 53 and the studdle 52 hinged by shaft with right cylinder 41, the described one end of auxiliary threaded rod 53 far from auxiliary support frame 20
One end with studdle 52 far from right cylinder 41 is threaded in same flower basket bolt main body 54 by reversed, rotation flower
Basket bolt body 54 is convenient to the folding of adjustment auxiliary support frame 20.
Corresponding supporting device is the supporting device of feed screw nut form, including lead screw, is equipped with rotation stop projection at the top of lead screw,
Sliding slot on rotation stop projection and stop sleeve along stop sleeve axially directed cooperation, and with stop sleeve along the week of stop sleeve
Cooperate to block, stop sleeve can cover the removable fixation for being set to lead screw top realization and supporting device, and stop sleeve composition can
Tear connection structure open.Supporting device further includes the pedestal plugged for lead screw, and lead screw spline structure is arranged on pedestal, rotation is avoided to adjust
Lead screw rotates when nut, and the adjusting nut with threads of lead screw transmission cooperation is also rotatably equipped on pedestal.
In use, pedestal is supported on the ground of tunnel, gib is passed through to the branch of 41 bottom of right cylinder with preceding spy frame
Support set cylinder 43 is supported and fixed on the lead screw top being correspondingly arranged, and rotates adjusting nut, and lead screw is driven to rise, before using gib
Spy frame is moved upwards to be held out against with tunnel top, installs auxiliary support frame 20, then passes through the adjustment auxiliary of flower basket bolt main body 54
Gib can be completed in 20 position of support.It certainly, can be pre- with preceding spy top of the trellis in gib in order to improve security performance
Metal mesh, steel band etc. are first set.
Frame is visited before one embodiment of temporary support device includes in the present invention and the supporting device of frame is visited before being used to support,
Supporting device is the supporting device of above-mentioned feed screw nut form, the preceding preceding spy frame visited in frame, that is, above-described embodiment, no longer superfluous herein
It states.
Another embodiment of temporary support device is as shown in figure 4, only with the difference of above-described embodiment in the present invention
It is, supporting device is another feed screw nut form, including pedestal 61, two-way lead screw 62 and connection sleeve in the present embodiment
64.Wherein pedestal is used to be fixed to tunnel ground 66, and top is equipped with the threaded hole cooperated with the bottom thread of two-way lead screw；
It connects and is equipped with rotation stop projection 65 at the top of sleeve, rotation stop projection 65 is led with the sliding slot 44 on stop sleeve 43 along the axial direction of stop sleeve
To cooperation, and the circumferential block with stop sleeve along stop sleeve cooperates, and stop sleeve, which can be arranged, is fixed to connection sleeve 64
Top；The bottom end for connecting sleeve 64 is equipped with the threaded hole cooperated with the screw top of two-way lead screw 62.For ease of operation, two-way
Handle 63 is fixed on lead screw 62.In use, being arranged preceding spy frame fixed at the top of stop sleeve, a people visits frame before helping,
The preceding lifting for visiting frame can be realized in another people's rotational handle 63.It, can since two-way 62 both ends of lead screw are equipped with reverse thread
Realize quickly lifting.Certainly, in other embodiments, the releasable connection structure of the preceding right cylinder lower end for visiting frame can also replace
For other forms, such as the form of interior six sides or outer six side, the form etc. of ring flange is correspondingly set on supporting device for another example
Set corresponding mating connection structure.
In the above-described embodiments, tunnel top surface supporting beam includes cross-brace beam 12 and longitudinal support beam 11, in the present invention
Other embodiments in, tunnel top surface supporting beam can also only with cross-brace beam 12, or only with longitudinal support beam 11,
The quantity of tunnel top surface supporting beam also can according to need increase and decrease.In addition, in the above-described embodiments, preceding spy frame support structure uses
The form of piece a right cylinder 41 and diagonal brace 42, in other embodiments, preceding spy frame support structure also could alternatively be other forms,
For example, by using more right cylinders 41, then diagonal brace 42 is cooperated to be supported each tunnel top surface supporting beam, or all using diagonal brace
42,42 lower end of diagonal brace can all link together, and several diagonal braces 42 can also be formed one group, every group of bottom is connected to
Together.In addition, in the above-described embodiments, the preceding telescopic regulating mechanism visited between frame support structure and auxiliary support frame 20 is the gaily decorated basket
Bolt arrangement, in other embodiments, telescopic regulating mechanism also could alternatively be other forms, such as the shape of leadscrew-nut mechanism
Formula.Furthermore in other embodiments, main bracing frame 10, auxiliary support frame 20 or plane form.Certainly, at other
It, can also be using hydraulic prop as preceding spy frame if tunnel condition is easy to use hydraulic prop in embodiment
Supporting device.
Claims (8)
1. the preceding spy frame of gib, it is characterised in that: defining the preceding frame of visiting has the extending direction with tunnel when in use
Consistent depth direction and the transverse direction consistent with the width direction in tunnel section, then the preceding frame of visiting has in its depth direction
There is the tunnel top surface supporting beam of twice or more, and/or in its transverse direction with tunnel top surface supporting beams more than twice, it is preceding
Visiting frame further includes the preceding spy frame support structure connecting simultaneously with tunnel top surface supporting beam described at least twice；Frame support is visited before described
Structure includes a right cylinder for being connected to tunnel top surface supporting beam lower part, and right cylinder is located at gib in preceding spy frame transverse direction
Middle part, further include the diagonal brace being connected between right cylinder and tunnel top surface supporting beam；Each tunnel top surface supporting beam is formed
The lateral two sides of main bracing frame, the main bracing frame are hinged with auxiliary support frame, the hinge axes edge of auxiliary support frame
The preceding depth direction for visiting frame extends, and is hinged with flexible adjustment machine by shaft between preceding spy frame support structure and auxiliary support frame
Structure.
2. the preceding spy frame of gib according to claim 1, it is characterised in that: tunnel top surface supporting beam includes edge
The longitudinal support beam that its depth direction extends and the cross-brace beam being laterally extended along it, longitudinal support beam and cross-brace beam are total
Face setting.
3. the preceding spy frame of gib according to claim 1, it is characterised in that: the lower end of the right cylinder is equipped with and is used for
With the releasable connection structure of the removable fixation of supporting device of feed screw nut form.
4. the preceding spy frame of gib described in any one according to claim 1-3, it is characterised in that: each lane
Road top surface supporting beam visits the curved support face of frame transverse direction before being developed across.
5. the preceding spy frame of gib according to claim 1 to 3, it is characterised in that: telescopic regulating mechanism packet
The auxiliary threaded rod hinged with auxiliary support frame and the studdle hinged with preceding spy frame support structure are included, the auxiliary threaded rod is separate
One end of auxiliary support frame and studdle are threaded in same flower by reversed far from preceding one end for visiting frame support structure
In the main body of basket bolt.
6. the preceding spy frame of gib according to claim 5, it is characterised in that: the plane where auxiliary support frame is arc
Face.
7. the preceding spy frame of gib according to claim 1 to 3, it is characterised in that: visit frame support before described
Shaft between structure and auxiliary support frame is removable shaft.
8. temporary support device, it is characterised in that: the supporting device for visiting frame including preceding spy frame and before being used to support visits frame before described
For preceding spy frame described in any one in claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610731312.9A CN106121698B (en) | 2016-08-26 | 2016-08-26 | The preceding spy frame of gib and the temporary support device for using the preceding spy frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610731312.9A CN106121698B (en) | 2016-08-26 | 2016-08-26 | The preceding spy frame of gib and the temporary support device for using the preceding spy frame |
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| Publication Number | Publication Date |
|---|---|
| CN106121698A CN106121698A (en) | 2016-11-16 |
| CN106121698B true CN106121698B (en) | 2019-08-02 |
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| CN201610731312.9A Expired - Fee Related CN106121698B (en) | 2016-08-26 | 2016-08-26 | The preceding spy frame of gib and the temporary support device for using the preceding spy frame |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108729937B (en) * | 2018-05-23 | 2020-06-02 | 杭州三阳建设工程有限公司 | Supporting device for tunnel construction |
| CN108678792B (en) * | 2018-08-27 | 2023-07-21 | 邓立杰 | Movable supporting bone plate supporting structure for roadway |
| CN109538257A (en) * | 2019-01-28 | 2019-03-29 | 贵州大学 | A kind of umbrella shape point pillar gib for coal mine roadway |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101251022A (en) * | 2008-03-26 | 2008-08-27 | 曹树祥 | Immediate support device for digging machine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2193665C2 (en) * | 2001-02-08 | 2002-11-27 | Южно-Российский государственный технический университет (Новочеркасский политехнический институт) | Powered support |
| CN201221365Y (en) * | 2008-06-30 | 2009-04-15 | 永煤集团股份有限公司新桥煤矿 | Front cantilever temporary support |
| CN102889089B (en) * | 2012-10-24 | 2015-03-25 | 淮南巨万实业有限责任公司 | Single-column type advance support device of blasting work surface |
| CN203022776U (en) * | 2012-12-28 | 2013-06-26 | 山西潞安环保能源开发股份有限公司王庄煤矿 | Temporary supporting device for heating faces |
| CN103643979B (en) * | 2013-07-15 | 2017-02-08 | 郑东风 | Hydraulic support used for roadway temporary support and erecting and use method of hydraulic support |
| CN205955762U (en) * | 2016-08-26 | 2017-02-15 | 永煤集团股份有限公司 | Temporary support visits temporary support device of frame with preceding spy frame and before using this |
-
2016
- 2016-08-26 CN CN201610731312.9A patent/CN106121698B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101251022A (en) * | 2008-03-26 | 2008-08-27 | 曹树祥 | Immediate support device for digging machine |
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