CN106837400A - Pin transposing device is torn in hydraulic control open - Google Patents
Pin transposing device is torn in hydraulic control open Download PDFInfo
- Publication number
- CN106837400A CN106837400A CN201710177347.7A CN201710177347A CN106837400A CN 106837400 A CN106837400 A CN 106837400A CN 201710177347 A CN201710177347 A CN 201710177347A CN 106837400 A CN106837400 A CN 106837400A
- Authority
- CN
- China
- Prior art keywords
- pin
- hydraulic jack
- torn
- fixedly connected
- hydraulic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000003100 immobilizing effect Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Earth Drilling (AREA)
Abstract
Pin transposing device is torn in a kind of hydraulic control open, the cylinder body for moving hydraulic jack is adjusted to be connected with hydraulic controlled operation platform, adjust the expansion link for moving hydraulic jack to be connected with the connected tune of one to move horizontal guide rod and adjust shifting to stand to guide rod, adjust and move horizontal guide rod and adjust shifting to stand to offering hauling rope hole on guide rod respectively;Pin removal support frame is fixedly connected with base, the portable pin removal of suspention is placed with pin removal support frame, the portable pin removal of suspention includes hydraulic jack of pulling pin, the cylinder body of hydraulic jack of pulling pin is connected with hydraulic controlled operation platform, hydraulic jack of pulling pin is with piston rod of pulling pin, the cylinder body one end for the hydraulic jack of pulling pin where piston rod of pulling pin is fixedly connected with the pin guide corresponding with pin-and-hole, and piston rod of pulling pin is located in pin guide.Vertically arranged protection network is fixedly connected with base.The openend of pin guide is fixedly connected with the support ring corresponding with pin-and-hole.The observation groove of strip is offered on pin guide, the trend for observing groove is consistent with piston rod.
Description
Technical field
Pin transposing device is torn open the present invention relates to a kind of mining device, more particularly to a kind of hydraulic control.
Background technology
At present, the mode of disassembling of comprehensive machine equipment pivot pin is a little use as to be taken root using setting anchor cable, anchor pole etc. under mine
Chain block hardness draws the mode of solution, and easily taking root disconnection a little or at tie point occur, the phenomenon such as chain block chain breaks, and hand
Drawing cucurbit drawing solution mode need to draw solution personnel low coverage to operate, therefore have the potential safety hazard that disconnected thing is hurted sb.'s feelings.
In addition, under mine comprehensive machine equipment often due to set-up site environment is poor, use time is long etc., factor causes equipment axle
Pin disassembles difficulty, even if cannot also be disassembled by the way of chain block draws solution, often need to strongly disassemble, and it is disconnected that epistasis draws solution often to occur
The safety problem that thing is hurted sb.'s feelings, often need to cut operation with the use of electrically burning, and big to damage of facilities, economic loss is serious.
Additionally, the entrucking of equipment is by the way of lifting or loading, these modes easily cause entrucking weight during entrucking
Heart skew, the bad phenomenon such as support is skewed, scratching support material, flat car are slided down, flat car is damaged, apply so as to threaten scene
The personal safety of workman person.And, need frequently to adjust centering during equipment entrucking, entrucking inefficiency.
In sum, current ore deposit underground equipment disassemble and entrucking mode have that workman's amount of labour is big, operating efficiency low,
The shortcomings of with certain potential safety hazard, therefore, on the premise of ensuring personal safety with equipment safety, if wanting to realize efficiently strong
Power is disassembled, is accurately positioned entrucking, improves operating efficiency, reduces labor strength, just must further be innovated technologies.
The content of the invention
The present invention is for deficiency, there is provided pin transposing device is torn in a kind of hydraulic control open, and the use of the device can conscientiously ensure scene
The personal safety of workmen, reduces the amount of labour of workmen, protects the various equipment of job site, improves operating efficiency.
The technical scheme that the present invention solves above-mentioned technical problem is as follows:
Pin transposing device, including base are torn in a kind of hydraulic control open, hydraulic controlled operation platform are fixedly connected with base, it is characterised in that base
On be fixedly connected with tune move hydraulic jack, adjust move hydraulic jack cylinder body be connected with hydraulic controlled operation platform, adjust liquid relief press thousand
The expansion link on jin top is connected with the connected tune of one and moves horizontal guide rod and adjust shifting to stand to guide rod, adjusts to move horizontal guide rod and adjust and moves
Stand to offering hauling rope hole on guide rod respectively;Pin removal support frame is fixedly connected with base, is placed on pin removal support frame
Have a portable pin removal of suspention, the portable pin removal of suspention includes hydraulic jack of pulling pin, the cylinder body of hydraulic jack of pulling pin with
Hydraulic controlled operation platform is connected, and hydraulic jack of pulling pin is with pull pin piston rod, the hydraulic jack of pulling pin where piston rod of pulling pin
Cylinder body one end be fixedly connected with the pin guide corresponding with pin-and-hole, piston rod of pulling pin is located in pin guide.
Pin transposing device is torn open according to described hydraulic control, it is characterised in that be fixedly connected with the base vertically arranged
Protection network.
Pin transposing device is torn open according to described hydraulic control, it is characterised in that the openend of the pin guide is fixedly connected with
The support ring corresponding with pin-and-hole.
Pin transposing device is torn open according to described hydraulic control, it is characterised in that the sight of strip is offered on the pin guide
Groove is examined, the trend for observing groove is consistent with the piston rod.
Pin transposing device is torn open according to described hydraulic control, it is characterised in that the free end of the piston rod of pulling pin is fixedly connected
There is the connection ring corresponding with bearing pin.
Pin transposing device is torn open according to described hydraulic control, it is characterised in that support frame is fixedly connected with the base, it is described
Shifting hydraulic jack is adjusted to be connected on support frame.
Pin transposing device is torn open according to described hydraulic control, it is characterised in that offered on support frame as described above and the tune liquid relief
Pressure jack moves towards consistent tune and moves guide groove, and the tune moves hydraulic jack and is connected in tune shifting guide groove.
Pin transposing device is torn open according to described hydraulic control, it is characterised in that immobilizing foundation hole is offered on the base.
Pin transposing device is torn open according to described hydraulic control, it is characterised in that fixed compression leg position is additionally provided with the base.
Pin transposing device is torn open according to described hydraulic control, it is characterised in that the fixed compression leg position is the pit to lower recess.
The present invention is disassembled and entrucking for equipment,
The device can realize that the effective powerful of equipment bearing pin is disassembled, equipment flexibly adjusts shifting, be accurately positioned entrucking, be prevented effectively from original
Chain block draws the potential safety hazard that the disconnected thing that solution mode easily occurs hurts sb.'s feelings, equipment hoisting or loads the entrucking center of gravity that mode is easily caused
Skew, the bad phenomenon such as support is skewed, flat car is damaged.
Brief description of the drawings
Fig. 1 is main structure diagram of the invention;
Fig. 2 is overlooking the structure diagram of the invention;
Fig. 3 is left view structural representation of the invention;
Fig. 4 is the structural representation of the portable pin removal of suspention in the present invention;
Fig. 5 is the A-A cross section structure diagrams of Fig. 4;
Fig. 6 is the overlooking the structure diagram of Fig. 4;
Fig. 7 is the hydraulic control schematic diagram of hydraulic controlled operation platform in the present invention;
Fig. 8 is the use state reference view of the portable pin removal of suspention described in Fig. 4.
In accompanying drawing:
1st, protection network;2nd, hydraulic controlled operation platform;3rd, hauling rope hole;4th, shifting is adjusted to stand to guide rod;5th, adjust and move hydraulic jack;6th, adjust and move horizontal
To guide rod;7th, support frame;8th, immobilizing foundation hole;9th, fixed compression leg position;10th, base;11st, adjust and move guide groove;12nd, suspention movable type is pulled out
Pin device;13rd, pin removal support frame;14th, pull pin hydraulic jack;15th, pull pin piston rod;16th, pin guide;17th, groove is observed;
18th, connection ring;19th, support ring;20th, bearing pin;21st, object outer wall;22nd, pin-and-hole;23rd, pressure indicator;24th, pull pin control valve;
25th, levelling control valve;26th, external level control valve;27th, hydraulic control one-way valve.
Specific embodiment
Principle of the invention and feature are described below in conjunction with accompanying drawing, example is served only for explaining the present invention, and
It is non-for limiting the scope of the present invention.
As shown in Figures 1 to 8, pin transposing device, including base 10 are torn in a kind of hydraulic control open, and hydraulic control is fixedly connected with base 10
Operating desk 2, is fixedly connected with tune and moves hydraulic jack 5 on base 10, adjust the cylinder body and hydraulic controlled operation platform 2 for moving hydraulic jack 5
It is connected, adjusts the expansion link for moving hydraulic jack 5 to be connected with the connected tune of one and move horizontal guide rod 6 and adjust shifting to stand to guide rod
4, adjust and move horizontal guide rod 6 and adjust shifting to stand to offering hauling rope hole 3 on guide rod 4 respectively;Pin removal is fixedly connected with base 10
Support frame 13, is placed with the portable pin removal 12 of suspention on pin removal support frame 13, the portable pin removal 12 of suspention includes pulling pin
Hydraulic jack 14, the cylinder body of hydraulic jack of pulling pin 14 is connected with hydraulic controlled operation platform 2, and hydraulic jack of pulling pin 14 is carried and pulled out
Pin piston rod 15, cylinder body one end of the hydraulic jack 14 of pulling pin where the piston rod 15 of pulling pin is fixedly connected with relative with pin-and-hole 22
The pin guide 16 answered, piston rod 15 of pulling pin is located in pin guide 16.
In the present embodiment, vertically arranged protection network 1 is fixedly connected with the base 10.The pin guide 16
Openend is fixedly connected with the support ring 19 corresponding with pin-and-hole 22.The observation groove of strip is offered on the pin guide 16
17, the trend for observing groove 17 is consistent with the piston rod 15.The free end for pulling pin piston rod 15 is fixedly connected with and bearing pin
20 corresponding connection rings 18.
In the present embodiment, support frame 7 is fixedly connected with the base 10, it is described to adjust shifting hydraulic jack 5 to be connected to
On support frame 7.Offered on support frame as described above 7 and move the tune shifting guide groove 11 that hydraulic jack 5 moves towards consistent with described tune, the tune
Hydraulic jack 5 is moved to be connected in tune shifting guide groove 11.Immobilizing foundation hole 8 is offered on the base 10.On the base 10 also
It is provided with fixed compression leg position 9.The fixed compression leg position 9 is the pit to lower recess.
The present invention uses mining 12#I-steel makees main body frame, and 120 channel-section steels make hydraulic controlled operation platform structural elements, φ 150mm
Hollow round steel makees pin guide, and hydraulic jack connection round-link chain makees connection ring, hydraulic jack as power, and hydraulic valve makees hydraulic pressure
System operating switch, it is combined to be welded.The present invention is made up of transposing device and the portable part of pin removal two of suspention, sets
Hydraulic collection control function, the bearing pin for realizing each orientation colliery downhole equipment that can be flexibly and fast is disassembled and entrucking tune transposition is moved, accurate
Positioning entrucking function, operation flexibly and fast, is disassembled tune and moves powerful efficient.
Relative to background technology, solution of the invention, dress efficiency are double, and no longer occur cutting operation using electrically burning.Therefore,
The present invention can realize that the effective powerful of equipment bearing pin is disassembled, equipment flexibly adjusts shifting, entrucking is accurately positioned, with operating efficiency
It is high, without destructiveness loss, safety coefficient be high, the low advantage of labor strength.
In addition, the present invention has further the advantage that:
1st, the potential safety hazard that former chain block draws the disconnected thing that solution mode easily occurs to hurt sb.'s feelings is eliminated, the efficient of equipment bearing pin is realized
Strong force safety is disassembled.
2nd, eliminate equipment hoisting or load mode and easily cause that entrucking centre-of gravity shift, support are skewed, flat car is damaged etc. no
Good phenomenon, realizes equipment and flexibly adjusts shifting, is accurately positioned entrucking.
3rd, manual labor and the amount of labour of workmen are greatly reduced, it is ensured that construction safety, improve operating efficiency,
Simple operation.
4th, lost without damage of facilities, withdraw high financial profit.
5th, simple structure, dress to equipment, transports, installs, withdrawing conveniently.
Claims (10)
1. pin transposing device, including base are torn in a kind of hydraulic control open(10), base(10)On be fixedly connected with hydraulic controlled operation platform(2), its
It is characterised by, base(10)On be fixedly connected with tune move hydraulic jack(5), adjust and move hydraulic jack(5)Cylinder body and hydraulic control
Operating desk(2)It is connected, adjusts and move hydraulic jack(5)Expansion link be connected with the connected tune of one and move horizontal guide rod(6)
Stood to guide rod with tune shifting(4), adjust and move horizontal guide rod(6)Stood to guide rod with tune shifting(4)It is upper to offer hauling rope hole respectively(3);Bottom
Seat(10)On be fixedly connected with pin removal support frame(13), pin removal support frame(13)On be placed with the portable pin removal of suspention
(12), the portable pin removal of suspention(12)Including hydraulic jack of pulling pin(14), hydraulic jack of pulling pin(14)Cylinder body and liquid
Control operating desk(2)It is connected, hydraulic jack of pulling pin(14)With piston rod of pulling pin(15), piston rod of pulling pin(15)Place is pulled out
Pin hydraulic jack(14)Cylinder body one end be fixedly connected with and pin-and-hole(22)Corresponding pin guide(16), piston rod of pulling pin
(15)Positioned at pin guide(16)It is interior.
2. pin transposing device is torn in hydraulic control according to claim 1 open, it is characterised in that the base(10)On be fixedly connected with
Vertically arranged protection network(1).
3. pin transposing device is torn in hydraulic control according to claim 1 open, it is characterised in that the pin guide(16)Openend
It is fixedly connected with and pin-and-hole(22)Corresponding support ring(19).
4. pin transposing device is torn in hydraulic control according to claim 1 open, it is characterised in that the pin guide(16)On offer
The observation groove of strip(17), observe groove(17)Trend and the piston rod(15)Unanimously.
5. pin transposing device is torn in hydraulic control according to claim 1 open, it is characterised in that the piston rod of pulling pin(15)Freedom
End is fixedly connected with and bearing pin(20)Corresponding connection ring(18).
6. pin transposing device is torn in hydraulic control according to claim 1 open, it is characterised in that the base(10)On be fixedly connected with
Support frame(7), it is described to adjust shifting hydraulic jack(5)It is connected to support frame(7)On.
7. pin transposing device is torn in hydraulic control according to claim 6 open, it is characterised in that support frame as described above(7)On offer with
Described tune moves hydraulic jack(5)The tune for moving towards consistent moves guide groove(11), it is described to adjust shifting hydraulic jack(5)Tune shifting is connected to lead
Groove(11)It is interior.
8. pin transposing device is torn in hydraulic control according to claim 1 open, it is characterised in that the base(10)On offer fixation
Basic hole(8).
9. pin transposing device is torn in hydraulic control according to claim 1 open, it is characterised in that the base(10)On be additionally provided with it is solid
Level pressure post position(9).
10. pin transposing device is torn in hydraulic control according to claim 9 open, it is characterised in that the fixed compression leg position(9)For downward
The pit of depression.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710177347.7A CN106837400A (en) | 2017-03-23 | 2017-03-23 | Pin transposing device is torn in hydraulic control open |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710177347.7A CN106837400A (en) | 2017-03-23 | 2017-03-23 | Pin transposing device is torn in hydraulic control open |
Publications (1)
Publication Number | Publication Date |
---|---|
CN106837400A true CN106837400A (en) | 2017-06-13 |
Family
ID=59129494
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710177347.7A Pending CN106837400A (en) | 2017-03-23 | 2017-03-23 | Pin transposing device is torn in hydraulic control open |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106837400A (en) |
Citations (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101698277A (en) * | 2009-08-28 | 2010-04-28 | 枣庄矿业集团付村煤业有限公司 | Hydraulic pin releaser |
CN201881337U (en) * | 2010-12-15 | 2011-06-29 | 徐州重型机械有限公司 | Shaft plugging and pulling device and mobile crane provided with same |
CN102501060A (en) * | 2011-11-08 | 2012-06-20 | 枣庄矿业(集团)有限责任公司物流中心 | Disassembling tool for pin shaft of mine hydraulic support |
CN202292057U (en) * | 2011-10-14 | 2012-07-04 | 力博重工科技股份有限公司 | Built-in hydraulic automatic pin pulling device |
CN202344493U (en) * | 2011-12-09 | 2012-07-25 | 湖北省电力公司黄龙滩水力发电厂 | Combined pin puller |
CN202367417U (en) * | 2011-10-31 | 2012-08-08 | 中国神华能源股份有限公司 | Multi-pass pin puller for pin shaft of bracket |
CN202399005U (en) * | 2012-01-09 | 2012-08-29 | 陈广庆 | Pin puller |
CN102765670A (en) * | 2012-07-17 | 2012-11-07 | 吴月伟 | Combined overhauling and carrying vehicle |
CN203125090U (en) * | 2013-04-02 | 2013-08-14 | 郑州煤机速达配件服务有限公司 | Lift type shaft pulling device |
CN103410540A (en) * | 2013-07-27 | 2013-11-27 | 大同市恒熙科技有限公司 | Loader for hydraulic supports of fully-mechanized coal mining faces of coal mines |
CN203317336U (en) * | 2013-06-28 | 2013-12-04 | 淮南矿业(集团)有限责任公司 | Pin pulling device |
CN103437798A (en) * | 2013-07-24 | 2013-12-11 | 枣庄联鑫实业有限责任公司 | Device for installing and removing fully mechanized mining supporter |
CN203452819U (en) * | 2013-07-24 | 2014-02-26 | 枣庄联鑫实业有限责任公司 | Assembling and disassembling device for fully-mechanized coal mining support |
CN204135989U (en) * | 2014-09-30 | 2015-02-04 | 平煤神马机械装备集团河南矿机有限公司 | A kind of Quick pin remover of detaching hydraulic support |
CN104526324A (en) * | 2014-12-29 | 2015-04-22 | 枣庄矿业集团高庄煤业有限公司 | Pin shaft dismounting device for coal mine hydraulic support |
CN105019930A (en) * | 2015-07-02 | 2015-11-04 | 平煤神马机械装备集团河南矿机有限公司 | Mining hydraulic support assembly platform |
CN106141988A (en) * | 2016-08-02 | 2016-11-23 | 江西电力职业技术学院 | Pin removal |
CN205928463U (en) * | 2016-07-28 | 2017-02-08 | 姜瑞 | Hydraulic pressure pin pulling device |
CN205950642U (en) * | 2016-08-24 | 2017-02-15 | 铁法煤业(集团)有限责任公司晓南矿 | Pin puller |
CN206592144U (en) * | 2017-03-23 | 2017-10-27 | 枣庄矿业(集团)有限责任公司柴里煤矿 | Pin transposing device is torn in hydraulic control open |
-
2017
- 2017-03-23 CN CN201710177347.7A patent/CN106837400A/en active Pending
Patent Citations (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101698277A (en) * | 2009-08-28 | 2010-04-28 | 枣庄矿业集团付村煤业有限公司 | Hydraulic pin releaser |
CN201881337U (en) * | 2010-12-15 | 2011-06-29 | 徐州重型机械有限公司 | Shaft plugging and pulling device and mobile crane provided with same |
CN202292057U (en) * | 2011-10-14 | 2012-07-04 | 力博重工科技股份有限公司 | Built-in hydraulic automatic pin pulling device |
CN202367417U (en) * | 2011-10-31 | 2012-08-08 | 中国神华能源股份有限公司 | Multi-pass pin puller for pin shaft of bracket |
CN102501060A (en) * | 2011-11-08 | 2012-06-20 | 枣庄矿业(集团)有限责任公司物流中心 | Disassembling tool for pin shaft of mine hydraulic support |
CN202344493U (en) * | 2011-12-09 | 2012-07-25 | 湖北省电力公司黄龙滩水力发电厂 | Combined pin puller |
CN202399005U (en) * | 2012-01-09 | 2012-08-29 | 陈广庆 | Pin puller |
CN102765670A (en) * | 2012-07-17 | 2012-11-07 | 吴月伟 | Combined overhauling and carrying vehicle |
CN203125090U (en) * | 2013-04-02 | 2013-08-14 | 郑州煤机速达配件服务有限公司 | Lift type shaft pulling device |
CN203317336U (en) * | 2013-06-28 | 2013-12-04 | 淮南矿业(集团)有限责任公司 | Pin pulling device |
CN103437798A (en) * | 2013-07-24 | 2013-12-11 | 枣庄联鑫实业有限责任公司 | Device for installing and removing fully mechanized mining supporter |
CN203452819U (en) * | 2013-07-24 | 2014-02-26 | 枣庄联鑫实业有限责任公司 | Assembling and disassembling device for fully-mechanized coal mining support |
CN103410540A (en) * | 2013-07-27 | 2013-11-27 | 大同市恒熙科技有限公司 | Loader for hydraulic supports of fully-mechanized coal mining faces of coal mines |
CN204135989U (en) * | 2014-09-30 | 2015-02-04 | 平煤神马机械装备集团河南矿机有限公司 | A kind of Quick pin remover of detaching hydraulic support |
CN104526324A (en) * | 2014-12-29 | 2015-04-22 | 枣庄矿业集团高庄煤业有限公司 | Pin shaft dismounting device for coal mine hydraulic support |
CN105019930A (en) * | 2015-07-02 | 2015-11-04 | 平煤神马机械装备集团河南矿机有限公司 | Mining hydraulic support assembly platform |
CN205928463U (en) * | 2016-07-28 | 2017-02-08 | 姜瑞 | Hydraulic pressure pin pulling device |
CN106141988A (en) * | 2016-08-02 | 2016-11-23 | 江西电力职业技术学院 | Pin removal |
CN205950642U (en) * | 2016-08-24 | 2017-02-15 | 铁法煤业(集团)有限责任公司晓南矿 | Pin puller |
CN206592144U (en) * | 2017-03-23 | 2017-10-27 | 枣庄矿业(集团)有限责任公司柴里煤矿 | Pin transposing device is torn in hydraulic control open |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107178079B (en) | Tool platform suitable for positioning cast-in-place pile reinforcement cage and guide pipe | |
CN103728178B (en) | A kind of inflatable of post loads locating device and loads localization method | |
CN201757714U (en) | Ground anchor type static load testing device | |
CN203845689U (en) | Indoor assembled large-scale equipment hoisting device | |
CN202041399U (en) | Dead load testing device for stress of precast beam | |
CN207108405U (en) | Portable light-duty jacking apparatus | |
CN206592144U (en) | Pin transposing device is torn in hydraulic control open | |
CN101446083A (en) | Dropping method for large-tonnage steel liner of drilled pile | |
CN101016827A (en) | 18 m hydraulic pressure rise and fall retractable drill tower | |
CN106837400A (en) | Pin transposing device is torn in hydraulic control open | |
CN206088957U (en) | Shear fork type lifting device | |
CN209163736U (en) | A kind of pile frame | |
CN202969379U (en) | Hoisting support for rock bolt tensioning jack | |
CN205076774U (en) | Mining underground operation face lifts by crane platform device fast | |
CN209927625U (en) | Crawler belt pulling-resistant static load test device | |
CN101463728A (en) | Hoisting stand for mining | |
CN204590018U (en) | A kind of pile frame | |
CN204569238U (en) | Omnipotent bracing or strutting arrangement bottom a kind of tower crane | |
CN110029946B (en) | Installation method of vertical lifting derrick | |
CN206928292U (en) | A kind of high tonnage anchor jacked pile assembled reaction frame | |
CN206521242U (en) | A kind of hydraulic lift | |
EP3375746A1 (en) | Tower crane | |
CN204645039U (en) | The operation pylon of hole-drilling pile-filling machine | |
EP3375747A1 (en) | Tower crane | |
CN2825590Y (en) | Rig substructure lifting device |
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 | ||
RJ01 | Rejection of invention patent application after publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170613 |