CN201982127U - Multistage plug-in connecting rod type filling hydraulic support - Google Patents
Multistage plug-in connecting rod type filling hydraulic support Download PDFInfo
- Publication number
- CN201982127U CN201982127U CN2011200619278U CN201120061927U CN201982127U CN 201982127 U CN201982127 U CN 201982127U CN 2011200619278 U CN2011200619278 U CN 2011200619278U CN 201120061927 U CN201120061927 U CN 201120061927U CN 201982127 U CN201982127 U CN 201982127U
- Authority
- CN
- China
- Prior art keywords
- base
- hydraulic
- compacting
- hydraulic cylinder
- hinged
- 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 - Lifetime
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 238000003825 pressing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 230000008093 supporting effect Effects 0.000 description 12
- 239000003245 coal Substances 0.000 description 10
- 238000005065 mining Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000009415 formwork Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000006210 lotion Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000010878 waste rock Substances 0.000 description 2
- 241001125877 Gobio gobio Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Actuator (AREA)
Abstract
The utility model relates to a multistage plug-in connecting rod type filling hydraulic support, which solves various problems in efficient after-support goaf filling of gangue and other solid particles of the prior art, and comprises a base, a front girder, a top beam, a rear top beam, a hydraulic front stand column, a hydraulic middle stand column, a hydraulic rear stand column, a pushing hydraulic cylinder arranged in the middle of the base, a base lifting hydraulic cylinder and a front push rod. The utility model has the technical scheme that the middle part of the top beam is provided with a multistage plug-in connecting rod type guiding mechanism with two-stage strokes, which consists of a guide rod box, a secondary guide sleeve and a guide sleeve raised on the base, the top of the rectangular guide rod box with a slideway of the guiding mechanism is hinged with the middle part of the top beam, and the other end of the guide rod box is inserted into the secondary guide sleeve and is simultaneously inserted into the guide sleeve raised on the base. The hydraulic support has a compact structural design, the whole device occupies small space, the hydraulic support has a large support area and a large height adjustment range, is flexible to adjust and convenient to operate and maintain, is suitable for being used cooperatively by various devices for the filling assisting work of the whole working surface, and the production efficiency is improved.
Description
Technical field
The utility model relates to the extraordinary hydraulic support that use in ore deposit, a kind of coal mine palace, particularly a kind of multistage grafting link-type filling hydraulic support, it is suitable for the goaf solid material filling of entire working surface, is a kind of filling hydraulic support that integrates the auxiliary filling function in goaf behind exploitation supporting and the frame.
Background technology
According to reported in literature, cause subsiding of ground at existing most wells palace mine carrying out the meeting that coal mining takes top board spontaneous caving method to exist, the above ground structure in many mining areas is destroyed, the village resettlement, a large amount of land wastages are caused in the subsidence area, and spoil throws aside ground is worked the mischief, and cover the soil, contaminated environment or the like problem adopts the following solution of administering mostly.For example publication number be " method of filling goaf by gangue " of CN1807843A, " hydraulic support for filling waste rock " that notification number is CN2804388Y and publication number be CN1873188A patents such as " hydraulic support for filling waste rock " in disclose and established tail boom at the comprehensive mining hydraulic bracket rear portion, hang the mode of small belt or scratch board conveyor then, spoil is sent into the earth-filling method in goaf behind the frame.Though this method can realize gangue refill to a certain degree, only be that spoil is piled in the goaf, its supporting structure has determined that also its backfill ratio is lower.Practical application shows that it mainly acts on is to consume spoil, can not effectively solve the problem of subsidence.And be to disclose in " a kind of Hexastyle supporting type coal mining and filling hydraulic bracket " of CN101725365A and the patents such as " a kind of Hexastyle supporting type coal mining and filling hydraulic brackets " that publication number is CN201554482U to establish tail boom at the comprehensive mining hydraulic bracket rear portion at publication number, hang then on the basis of small belt or scratch board conveyor, increased by heightening the system for compacting that hydraulic cylinder is connected with the compacting hydraulic cylinder.After the spoil compacting that has realized sending into the goaf on the function substantially, form filling entity with certain intensity, thus the purpose of top, control coal seam lithosphere motion.But its structure itself also exists operator's watch window too small, walkway is tied up by last connecting rod, and single bar linkage structure intensity is limited, the wide pedestrian of influence of base and move frame, thereby before and after column too closely influence supporting effect, compacting and heighten numerous practical problems such as hydraulic cylinder changing difficulty.Publication number is that CN101265808A's disclose a kind of mechanism that the barricade soft template is set at the comprehensive mining hydraulic bracket rear in " coal mine conjuncted asynchronous bracket filled block wall ", its objective is at fluid filled things such as filling lotion or slurry in the goaf behind the frame, its complex structure, empty top, rear portion supporting effect is poor, and the ability to bear of the pressure of this soft template structure convection cell material and ore deposit, goaf pressure is also very limited.In addition, in notification number is " heading head hydraulic support is stayed in the filling of GS material " of CN2128670Y, announced a kind of GS(of being used for high-moisture quick-setting) the material filling stays the face end support in lane, its purposes is to realize along the goaf staying with the edge, tunnel building body of wall, but not to the goaf filling operation of entire working surface.
The problem that the support that the inventor once adopted at the filling in goaf behind above-mentioned exploitation supporting and the frame exists, successively having designed publication number is CN101487395A " formwork support with filling behind support ", notification number be CN200999613Y's " roadside packing rear pattern plate support ", notification number be CN200999614Y's " roadside packing side template support ", publication number is that CN101289939A's " gob side entry retaining comprehensive support device " and publication number is the falseworks such as " gob-side entry retaining work mould bases " of CN101560883A, solve formwork erection and whole supporting when implementing gob side entry retaining and roadside packing technology, how to carry out mechanization, and realized the body of wall filling and the difficult problems such as producing concurrent job of mining.In addition, the publication number that the inventor designs is " formwork support with filling behind support " of CN101487395A and " the box filling hydraulic support " that publication number is CN201539274U, all can be used as the supporting and the template equipment that the goaf are carried out whole filling.But, because of its charges are like lotion or paste materials, and can not carry out filling to siccative, manufacture and induction system so also need to increase, as slurry stirring and pumping installations etc., come and the support coordinating operation, therefore, influence it and apply.
The utility model content
The purpose of this utility model provides a kind of multistage grafting link-type filling hydraulic support, what it had solved that prior art exists carries out goaf filling existing variety of issue behind the efficient frame to solid particles such as spoils, its structure design compactness, the equipment overall space takies little, supporting area and to heighten scope big, and institutional adjustment is flexible, be convenient to operation and maintenance, be suitable for the collaborative use of multiple devices, carry out the filling less important work of entire working surface, enhance productivity.
The technical scheme that the utility model adopted is: this multistage grafting link-type filling hydraulic support comprises base, front-axle beam, back timber, back back timber, capital is hinged with described back timber and back back timber respectively, cylinder bottom by the hinged hydraulic pressure of pressing plate and described base before, in, rear column, be assembled in the middle passing hydraulic cylinder of described base, lift base hydraulic cylinder and preceding push rod, its technical essential is: the middle part of described back timber is provided with has the multistage grafting link-type guiding mechanism of two-stage stroke by the guide rod case, the guide pin bushing of projection is formed on secondary fairlead and the described base, the top of the described guide rod case of the rectangle that has slideway of described guiding mechanism and the middle part of described back timber are hinged, the other end of described guide rod case inserts in the described secondary fairlead, and together is inserted in the guide pin bushing of projection on the described base.
Between the guide pin bushing of projection limited block is set on described secondary fairlead and the described base.
The interior hanging mechanism of slideway that is assembled in described back back timber hangs a filling scratch board conveyor of controlling by back scraper plate telescopic hydraulic cylinder.
The system for compacting of being made up of shovel board, system for compacting secondary fairlead and system for compacting one-level casing that passes through the control of compacting hydraulic cylinder is set respectively in the both sides, rear portion of described base.
Be provided with otic placode on described system for compacting one-level casing, and hinged with an end of heightening hydraulic cylinder, the otic placode on the described other end of heightening hydraulic cylinder and the described base on the guide pin bushing of projection is hinged.
Advantage and the good effect that the utlity model has are: because of it adopts the multistage grafting link-type guiding mechanism with two-stage stroke by the guide rod case, the guide pin bushing of projection is formed on secondary fairlead and the described base, be placed in two relatively independent guiding mechanisms of base both sides of utilization replace traditional quadric chain, two flexible guiding mechanisms make the lifting of support carry out in vertical direction, after support raises, the passage that connects before and after the middle part of support will occur one, there is not the variation of beam-ends distance, before the feasible preceding hydraulic pressure, in, saved very big pedestrian space between the rear column, and the height change with support does not change, so its structure design compactness, the equipment overall space takies little, supporting area and to heighten scope big.In addition, each mechanism separates setting with its functional liquid cylinder pressure, so each institutional adjustment is flexible, good reliability is convenient to operation and maintenance, is suitable for the collaborative use of multiple devices, carries out the filling less important work of entire working surface, enhances productivity.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is a kind of concrete structure schematic diagram of the present utility model.
Fig. 2 is the vertical view of removing front-axle beam, back timber, hydraulic vertical prop, back back timber among Fig. 1, heightening hydraulic cylinder.
Fig. 3 is the lateral view that dissects among Fig. 1 behind the back timber.
Fig. 4 is the upward view of back back timber among Fig. 1.
Sequence number explanation among the figure: 1 extensible canopy, 2 face guards, 3 front-axle beams, 4 front-axle beam hydraulic cylinders, 5 hydraulic pressure front columns, 6 back timbers, 7 guide rod casees, 8 secondary fairleads, 9 back back timbers, 10 hanging mechanisms, 11 filling scratch board conveyors, 12 chain links, 13 transporters, 14 connectors, 15 bases, 16 pedals, 17 heighten hydraulic cylinder, 18 system for compacting one-level casings, 19 system for compacting secondary fairleads, 20 compacting hydraulic cylinders, 21 shovel boards, 22 protective jackets, 23 hydraulic pressure central posts, 24 hydraulic pressure rear columns, push rod before 25,26 pass hydraulic cylinder, 27 rear push-rods, 28 connect otic placode, 29 connect otic placode, 30 ear seats, 31 lift the base hydraulic cylinder, 32 otic placodes, 33 back scraper plate telescopic hydraulic cylinders.
The specific embodiment
Describe concrete structure of the present utility model in detail according to Fig. 1～3.This multistage grafting connecting rod filling hydraulic support is formerly to carry out on some the ripe falsework architecture basics in the patent improved the inventor.It comprises base 15, the front-axle beam 3 that has extensible canopy 1 and face guard 2, the back back timber 9 of suspention filling scratch board conveyor 11, respectively with front-axle beam 3, the hinged back timber 6 of back back timber 9, capital by bearing pin and, cylinder bottom 9 hinged respectively with back timber 6 and back back timber by the hinged hydraulic pressure of pressing plate and base 15 before, during and after column 5,23,24, be assembled in passing hydraulic cylinder 26 in the middle of the base 15, lift base hydraulic cylinder and preceding push rod, and parts such as guiding mechanism and system for compacting.Wherein the rear portion of the front end of back timber 6 and front-axle beam 3 respectively with being end-to-end of two front-axle beam hydraulic cylinders 4, the middle part of back timber 6 is provided with the multistage grafting link-type guiding mechanism with two-stage stroke and is made up of the guide pin bushing of projection on guide rod case 7, secondary fairlead 8 and the base 15.The top of the rectangular guide bar case 7 that has slideway of guiding mechanism and the middle part of back timber 6 are hinged, and the other end of guide rod case 7 inserts in the secondary fairlead 8, and together are inserted in two guide pin bushings of projection on the base 15.Between the guide pin bushing of projection limited block is set on secondary fairlead 8 and the base 15, and by limited block make guide rod case 7 can be in secondary fairlead 8 upper and lower slip and not breaking away from.The hanging mechanism 10 that is assembled in back timber 9 slideways of back can be along the forward and backward slip of slideway, and its slideway is by controlling with the back back scraper plate telescopic hydraulic cylinder 33 that is connected with hanging mechanism 10 of back timber 9 respectively by otic placode, and the below of hanging mechanism 10 is being suspended filling scratch board conveyor 11 in midair by chain link 12.Be assembled in that the gudgeon of passing hydraulic cylinders 26 by its cylinder body afterbody and base in the middle of the base 15 is 15 hinged, work post one ends and rear push-rod 27 be hinged.Be arranged in base 15 middle rear push-rod 27 ends and be connected with passing hydraulic cylinder 26, front end and preceding push rod 25 are hinged, and the front end of preceding push rod 25 is connected with connector 14 again.Be arranged in the lifting in the steel cylinder that base hydraulic cylinder 31 is placed on base 15 gap bridge back of base 15 anteriomedial positions, be connected with ear seat 30, and in by ear seat 30 and base 15 two main muscle and be welded on gap bridge after otic placode hinged, pedal 16 is connected with otic placode on being welded on base 15.The system for compacting of being made up of shovel board 21, system for compacting secondary fairlead 19 and system for compacting one-level casing 18 that passes through 20 controls of compacting hydraulic cylinder is set respectively in the both sides, rear portion of base 15.The otic placode of shovel board 21 both sides and the cylinder bottom of compacting hydraulic cylinder 20 are hinged, system for compacting secondary fairlead 19 is inserted in the system for compacting one-level casing 18 together with the shovel board of inserting in it 21, makes its forward and backward slip and not breaking away from system for compacting secondary fairlead 19 by limited block.The otic placode of the bottom of system for compacting one-level casing 18 and base 15 afterbodys is hinged.The cylinder bottom of the compacting hydraulic cylinder 20 of system for compacting is hinged with the otic placode that is welded on shovel board 21 both sides, and piston rod is hinged with the otic placode that is welded on base 15 afterbodys, becomes the power section of control system for compacting.Protective jacket 22 is installed on the piston rod of compacting hydraulic cylinder 20, injury-free with the protection piston rod.The otic placode of heightening on the guide pin bushing of projection on the cylinder bottom of hydraulic cylinder 17 1 ends and the base 15 is hinged, is provided with otic placode above the system for compacting one-level casing 18, and the otic placode of heightening the tailpiece of the piston rod of hydraulic cylinder and system for compacting one-level casing 18 is hinged.Wherein parts such as column 5,23,24, preceding push rod 25, rear push-rod 27 and ear seat 30 adopt existing structure before, during and after extensible canopy 1, face guard 2, front-axle beam 3, back timber 6, the hydraulic pressure, and used specification, shape should be determined according to instructions for use.
With prior art and formerly patent structure different be: this multistage grafting link-type filling hydraulic support adopts two flexible guiding mechanisms to replace quadric chain fully; It is hinged with the otic placode that is arranged on above the system for compacting one-level casing 18 to heighten hydraulic cylinder 17; The compacting hydraulic cylinder 20 that can realize two system for compacting that stretch is two flexible interior fluid injection structures..
The wherein form of structure of guiding mechanism, dimensions will be determined according to parameters such as the working resistance of support and working depths.Before guide rod case 7 is followed column hydraulic pressure, the rising of central post 5,23, reduction and upper and lower motion, after guide rod case 7 rises certain altitude, will drive secondary fairlead 8 together to rising, when support was raised to the extreme higher position, also leaving between the guide pin bushing on secondary fairlead 8 and the base 15 must content.Guaranteed between any state lower guide rod case 7, secondary fairlead 8 and base 15, not break away from all the time.Heighten the stroke of hydraulic cylinder by adjusting, make system for compacting can adjust height freely; Heighten hydraulic cylinder 17 be installed in system for compacting one-level casing 18 above make things convenient for its dismounting.The head of the shovel board 21 of system for compacting is the steel plate of an arc, and cambered surface is welded with reinforcing rib, to increase the intensity of arc plate.System for compacting secondary fairlead 19 is rectangular cylinder of a upper and lower perforation that is welded by steel plate, and top is provided with limited block; System for compacting one-level casing 18 is to be formed by the steel plate assembly welding, upper opening, and bottom sealing also is provided with hinge hole and base 15 afterbodys are hinged.The case structure of sealing has guaranteed intensity.By stretching of control compacting hydraulic cylinder 20, realize control to the system for compacting motion.
When this multistage grafting link-type filling hydraulic pressure timberer does, after both allocations is good according to said structure connected mode and description of drawings mounting arrangements, the acquiescence original state is that column 5,23,24 rises supporting top beam 6 before, during and after the hydraulic pressure, back timber 6 is contacted with top board, and reach setting load.Extensible canopy 1, face guard 2, lift base hydraulic cylinder 31, compacting hydraulic cylinder 20 all is in retracted state; Pass hydraulic cylinder 26, heighten hydraulic cylinder 17, back scraper plate telescopic hydraulic cylinder 33 is in the state of stretching out, and makes system for compacting be in extreme lower position and horizontal positioned.Filling scratch board conveyor 11 moves to back back timber rearmost end, will begin to carry out the filling of material after its operation; Simultaneously, work plane begins to carry out routine coal mining production.
When attal is transported to the support rear portion, the waste coal hole of open fill scratch board conveyor 11 bottoms, in the space, goaf after attal is fallen under back timber 9 shielding, open atomization mechanism, make attal moistening, and have must viscosity, after attal reaches some, open system for compacting, push by 21 pairs of attals of shovel board, the stroke of hydraulic cylinder 17 is heightened in good time adjustment, the height and the direction of control system for compacting; Along with the continuous increase of attal, system for compacting constantly pushes, and has formed the filled wall that has certain intensity and density together in the goaf at support rear portion gradually.Along with the continuous propelling of work plane coal work, the reach of support, support rear portion filled wall also just constantly thickens; As time goes on, the intensity of body of wall also constantly increases, and has so just reached substantial goaf, thus the purpose that top, control coal seam lithosphere sinks.
Claims (5)
1. multistage grafting link-type filling hydraulic support, comprise base, front-axle beam, back timber, back back timber, capital is hinged with described back timber and back back timber respectively, cylinder bottom by the hinged hydraulic pressure of pressing plate and described base before, in, rear column, be assembled in the middle passing hydraulic cylinder of described base, lift base hydraulic cylinder and preceding push rod, it is characterized in that: the middle part of described back timber is provided with has the multistage grafting link-type guiding mechanism of two-stage stroke by the guide rod case, the guide pin bushing of projection is formed on secondary fairlead and the described base, the top of the described guide rod case of the rectangle that has slideway of described guiding mechanism and the middle part of described back timber are hinged, the other end of described guide rod case inserts in the described secondary fairlead, and together is inserted in the guide pin bushing of projection on the described base.
2. according to the described multistage grafting link-type filling hydraulic support of claim 1, it is characterized in that: between the guide pin bushing of projection limited block is set on described secondary fairlead and the described base.
3. according to the described multistage grafting link-type filling hydraulic support of claim 1, it is characterized in that: the interior hanging mechanism of slideway that is assembled in described back back timber hangs a filling scratch board conveyor of controlling by back scraper plate telescopic hydraulic cylinder.
4. according to the described multistage grafting link-type filling hydraulic support of claim 1, it is characterized in that: the system for compacting of being made up of shovel board, system for compacting secondary fairlead and system for compacting one-level casing that passes through the control of compacting hydraulic cylinder is set respectively in the both sides, rear portion of described base.
5. according to the described multistage grafting link-type filling hydraulic support of claim 4, it is characterized in that: on described system for compacting one-level casing, be provided with otic placode, and hinged with an end of heightening hydraulic cylinder, the otic placode on the described other end of heightening hydraulic cylinder and the described base on the guide pin bushing of projection is hinged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200619278U CN201982127U (en) | 2011-03-11 | 2011-03-11 | Multistage plug-in connecting rod type filling hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200619278U CN201982127U (en) | 2011-03-11 | 2011-03-11 | Multistage plug-in connecting rod type filling hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201982127U true CN201982127U (en) | 2011-09-21 |
Family
ID=44609590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200619278U Expired - Lifetime CN201982127U (en) | 2011-03-11 | 2011-03-11 | Multistage plug-in connecting rod type filling hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201982127U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493839A (en) * | 2011-12-10 | 2012-06-13 | 太原理工大学 | Method for filling gob |
| CN105041351A (en) * | 2015-08-07 | 2015-11-11 | 四川华蓥山广能集团嘉华机械有限责任公司 | Full-mechanized top-coal caving hydraulic support without four-bar mechanism |
| CN107165670A (en) * | 2017-07-14 | 2017-09-15 | 天地科技股份有限公司 | A kind of double flexible reinforcement mechanism devices of the unpowered follow-up type in middle part |
| CN110397462A (en) * | 2019-07-12 | 2019-11-01 | 天地科技股份有限公司 | A kind of ceiling mounted tracks top beam and the hydraulic support comprising the top beam |
| CN111878145A (en) * | 2020-08-21 | 2020-11-03 | 冀中能源机械装备集团有限公司邢台机械厂 | High-efficient self-advancing formula tunnel fills equipment |
-
2011
- 2011-03-11 CN CN2011200619278U patent/CN201982127U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493839A (en) * | 2011-12-10 | 2012-06-13 | 太原理工大学 | Method for filling gob |
| CN105041351A (en) * | 2015-08-07 | 2015-11-11 | 四川华蓥山广能集团嘉华机械有限责任公司 | Full-mechanized top-coal caving hydraulic support without four-bar mechanism |
| CN107165670A (en) * | 2017-07-14 | 2017-09-15 | 天地科技股份有限公司 | A kind of double flexible reinforcement mechanism devices of the unpowered follow-up type in middle part |
| CN110397462A (en) * | 2019-07-12 | 2019-11-01 | 天地科技股份有限公司 | A kind of ceiling mounted tracks top beam and the hydraulic support comprising the top beam |
| CN111878145A (en) * | 2020-08-21 | 2020-11-03 | 冀中能源机械装备集团有限公司邢台机械厂 | High-efficient self-advancing formula tunnel fills equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102661169B (en) | Gob-side entry retaining method for anchor bolt network gangue bag wall body for coal mining without pillars | |
| CN201539274U (en) | Tank type filling hydraulic support | |
| CN201982127U (en) | Multistage plug-in connecting rod type filling hydraulic support | |
| CN101487395A (en) | Template support for filling after support | |
| CN102135006A (en) | Automatic tamper type waste filling hydraulic support | |
| CN200999614Y (en) | Roadside filling side falsework | |
| CN101560883B (en) | Gob-side entry retaining work mould base | |
| CN1702300A (en) | Arrangement for quickly shifting sublevel caving hydraulic support series for fully-mechanized mining of three-soft coal bed | |
| CN105952453B (en) | Longwell protrusive working face of coal seam mechanization exploits complete set of equipments without lane | |
| CN205638519U (en) | Girdle solid filling support | |
| CN201714411U (en) | Solid packed hydraulic support for working face | |
| CN202391424U (en) | Supporting type comprehensive bolter miner | |
| CN103867223A (en) | Hydraulic supporting device of suspended top beams for roadways in shed | |
| CN202596762U (en) | Baffle-type filling hydraulic bracket | |
| CN201232566Y (en) | Novel blasting top coal hydraulic support | |
| CN201915983U (en) | Hydraulic support | |
| CN201714412U (en) | Hydraulic support for non-solid-filled working face | |
| CN105697041A (en) | Temporary supporting bracket with telescopic top beams and connecting rods and supporting method | |
| CN201460939U (en) | Filling and timbering hydraulic support with a tamping mechanism | |
| CN202012363U (en) | Waste filling mining hydraulic bracket | |
| CN105952489A (en) | Anti-side-pressure guide rail slip type advancing and end hydraulic support | |
| CN203962014U (en) | Combine and adopt the dual-purpose working surface hydraulic support of filling | |
| CN202220614U (en) | Integrated self-shift hydraulic support for placing top coal in steeply inclined roadway | |
| CN101798935B (en) | Transverse self-moving combined suspension hydraulic bracket | |
| CN101482025B (en) | Light hydraulic support |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENYAN TIAN'AN MINING MACHINERY CO., LTD. Free format text: FORMER NAME: TIAN'AN MINING MACHINERY SCIENCE AND TECHNOLOGY CO., LTD., SHENYANG |
|
| CP03 | Change of name, title or address |
Address after: 110161, 11, Tai Man Street, Shenhe District, Liaoning, Shenyang Patentee after: Shenyan Tian'an Mining Machinery Co., Ltd. Address before: Senior officials of Taiwan Street in Dongling District of Shenyang city of Liaoning Province, No. 11 110161 Patentee before: Tian'an Mining Machinery Science and Technology Co., Ltd., Shenyang |
|
| C56 | Change in the name or address of the patentee |
Owner name: SHENYANG TIAN'AN TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHENYAN TIAN'AN MINING MACHINERY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 110161, 11, Tai Man Street, Shenhe District, Liaoning, Shenyang Patentee after: SHENYANG TIAN AN TECHNOLOGY CO., LTD. Address before: 110161, 11, Tai Man Street, Shenhe District, Liaoning, Shenyang Patentee before: Shenyan Tian'an Mining Machinery Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110921 |