CN105735917A - Dynamic upper rod disassembling structure for raise boring machine - Google Patents
Dynamic upper rod disassembling structure for raise boring machine Download PDFInfo
- Publication number
- CN105735917A CN105735917A CN201610250453.9A CN201610250453A CN105735917A CN 105735917 A CN105735917 A CN 105735917A CN 201610250453 A CN201610250453 A CN 201610250453A CN 105735917 A CN105735917 A CN 105735917A
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- China
- Prior art keywords
- lifting arm
- fixture block
- pin
- boring machine
- block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005553 drilling Methods 0.000 claims abstract description 48
- 239000003921 oil Substances 0.000 claims description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 4
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000001141 propulsive effect Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/18—Connecting or disconnecting drill bit and drilling pipe
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a dynamic upper rod disassembling structure for a raise boring machine. The dynamic upper rod disassembling structure comprises a mounting base, a lifting arm, a cylinder, a driving sleeve, a sliding block, a shifting block and a clamping block, wherein the mounting base is connected with a rotary box body; the cylinder drum of the cylinder is connected with the mounting base through a cylinder drum hinge pin; the mounting base is connected with the lifting arm through the lifting arm hinge pin; the piston rod of the cylinder is connected with the lifting arm through the piston rod hinge pin; the sliding block is connected with the lifting arm through a sliding block pin; the sliding block is clamped into a sliding groove of the driving shaft; the shifting block is connected with a rotary power head machine head body through an upper hinge pin; the shifting block is connected with the clamping block through a lower pin shaft. By adopting the dynamic upper rod disassembling structure, a drilling rod of the raise boring machine can be rapidly clamped, so that a drilling rod can be rapidly disassembled, and the operation can be convenient.
Description
Technical field
The invention belongs to mining machinery technical field, particularly relate to a kind of for raise boring machine dynamic on unload bar structure.
Background technology
Raise boring machine is as the important construction equipment of one in mine raise construction, and in work progress, subsidiary operation time often becomes the important factor in order of raise boring machine efficiency of construction.How quickly clamping drilling rod realizes the quick dismounting of drill rod thread, is need one importance of research to reduce subsidiary operation time, is also realize raise boring machine working performance to improve problem demanding prompt solution.A kind of as disclosed in the patent No. 201220347247.7 have hydraulic pressure and unload the down-the-hole drill of lever apparatus, including balladeur train, and it is arranged on the localizer seat board on described balladeur train, this seat board has the through hole of a receiving drilling rod, balladeur train side above described through hole is provided with hydraulic pressure and unloads lever apparatus, this hydraulic pressure unloads lever apparatus and by oil cylinder and is hinged on the bar spanner that unloads of this oil cylinder piston boom end and constitutes, and this unloads bar spanner can make swinging motion under described piston rod controls above described through hole.It utilizes the rotation unloading bar spanner that hydraulic pressure unloads lever apparatus to carry out the screw thread that couples of unscrewing drill and drilling rod, but it is slow to unload bar, operation inconvenience.
Summary of the invention
The purpose of the present invention is that and overcomes the deficiencies in the prior art, it is provided that a kind of for raise boring machine dynamic on unload bar structure, its can rapidly by the drilling rod clamping of raise boring machine, thus realizing the quick dismounting of drilling rod, easy to operate.
To achieve these goals, the invention provides a kind of for raise boring machine dynamic on unload bar structure, including mounting seat, lifting arm, oil cylinder, actuating sleeve, slide block, shifting block and fixture block, described mounting seat is connected with swiveling head casing, the cylinder barrel of described oil cylinder is connected with described mounting seat by cylinder barrel bearing pin, described mounting seat is connected with described lifting arm by lifting arm bearing pin, the piston rod of described oil cylinder is connected with described lifting arm by piston rod bearing pin, described slide block is connected with described lifting arm by slider pin, described slide block snaps in the chute of described actuating sleeve, described shifting block is connected with rotary motive power head handpiece body by upper pin, described shifting block is connected with described fixture block by lower bearing pin.
Further, the described slider pin that described hydraulic oil cylinder driving is connected with described lifting arm does circular motion around described lifting arm bearing pin, and described slide block, along described slide, simultaneously drives described actuating sleeve in the vertical direction for linear motion.
Further, described actuating sleeve in the vertical direction downward for linear motion time, described actuating sleeve is stirred described shifting block and is rotated around described upper pin, and described fixture block snaps in the draw-in groove of drilling rod along the central motion of described rotary motive power head handpiece body to described fixture block simultaneously.
Further, mounting seat described in two is connected in parallel on described swiveling head casing, is provided with reinforcement described in two between mounting seat.
Further, described lifting arm includes U-shaped frame and symmetry is fixed on two parallel arms bottom U-shaped frame U-shaped, connecting rod it is provided with between parallel arms described in two, described parallel arms includes the two side arms be arrangeding in parallel, mounting seat described in two is clipped between the two side arms of parallel arms described in two respectively, and described mounting seat is connected with described two side arms by described lifting arm bearing pin.
Further, described rotary motive power head handpiece body outer surface is outstanding overlaps described actuating sleeve, chute on described actuating sleeve is annular groove, two U-shaped ends of the U-shaped frame of described lifting arm are connected with described slide block respectively through described slider pin, two U-shaped ends of described U-shaped frame connect respectively two described in slide block all snap in described annular groove.
Further, described shifting block being provided with upper pin hole and downside pin axis hole, described upper pin is installed on described upper pin hole place by overcoat copper sheathing, and described lower bearing pin is installed on described downside pin axis hole place by overcoat resilient sleeve.
Further, described fixture block is installed on the arc groove place of described rotary motive power head handpiece body, described shifting block is connected with described fixture block by described lower bearing pin, described fixture block is provided with arc section and planar section on the direction towards the described rotary motive power head handpiece body center of circle, and the radius of curvature of described arc section is more than or equal to the radius of curvature of described drilling rod cylindrical.
Further, when original state, the planar section of described fixture block is in the arc groove of described rotary motive power head handpiece body, and described shifting block protrudes the outer surface of described rotary motive power head handpiece body.
Further, when described actuating sleeve in the vertical direction downward for linear motion time, described shifting block is touched and stirred to described actuating sleeve, described shifting block is made to rotate around described upper pin, described shifting block promotes described fixture block to move towards the direction, the center of circle of described rotary motive power head handpiece body simultaneously, and extremely the planar section of described fixture block snaps in the draw-in groove of drilling rod.
Oil cylinder be the present invention dynamically on unload the dynamical element of bar structure.The slider pin being connected with lifting arm by hydraulic oil cylinder driving does circular motion around lifting arm bearing pin, simultaneously slide block is along the slide of actuating sleeve, afterwards drive actuating sleeve in the vertical direction for linear motion, change into the rectilinear motion of actuating sleeve in the vertical direction by slider pin around the circular motion of lifting arm bearing pin.When actuating sleeve in the vertical direction downward for linear motion time, actuating sleeve is touched and is stirred shifting block and rotates around upper pin, shifting block is while rotating around upper pin simultaneously, fixture block is promoted to move in the draw-in groove that fixture block snaps in drilling rod along the direction, the center of circle of rotary motive power head handpiece body, achieve the present invention dynamically on unload bar structure rapidly by the process of the drilling rod clamping of raise boring machine, in above-mentioned clamping process, drilling rod remains static, rotary motive power head handpiece body limit rotates fixture block checkpost and enters the draw-in groove of drilling rod and clamping drilling rod, realize the present invention on drilling rod is under dynamically, unloads the process of bar structure clamping drilling rod, rotary motive power head handpiece body is in rotary course, during the draw-in groove of fixture block misalignment drilling rod, fixture block slides along the cylindrical of drilling rod, when the draw-in groove of card block alignment drilling rod, fixture block snaps in the draw-in groove of drilling rod immediately, clamping is rapid.
Compared with prior art, beneficial effects of the present invention: slider pin is converted into the rectilinear motion of actuating sleeve in the vertical direction by the present invention around the circular motion of lifting arm bearing pin, simultaneously drive set and stir shifting block around upper pin rotation, and fixture block moves in the draw-in groove that fixture block snaps in drilling rod along the direction, the center of circle of rotary motive power head handpiece body, it is achieved thereby that the present invention dynamically on unload bar structure rapidly by the process of the drilling rod clamping of raise boring machine, clamping is rapid, easy to operate.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic three dimensional views of the present invention.
Fig. 2 is the two-dimensional representation of the present invention.
Fig. 3 is the schematic three dimensional views of shifting block of the present invention and fixture block.
Fig. 4 is the structural representation that fixture block of the present invention snaps in drilling rod draw-in groove.
Above-mentioned accompanying drawing labelling:
1 mounting seat, 2 lifting arm bearing pins, 3 cylinder barrel bearing pins, 4 oil cylinders, 5 piston rod bearing pins, 6 lifting arms, 7 slider pins, 8 slide blocks, 9 actuating sleeves, 10 shifting blocks, 11 fixture blocks.
Detailed description of the invention
Below in conjunction with accompanying drawing, invention is further illustrated, but be not limited to the scope of the present invention.
Embodiment
Such as Fig. 1, shown in 2, provided by the invention a kind of for raise boring machine dynamic on unload bar structure, including mounting seat 1, lifting arm 6, oil cylinder 4, actuating sleeve 9, slide block 8, shifting block 10 and fixture block 11, described mounting seat 1 is connected with swiveling head casing, the cylinder barrel of described oil cylinder 4 is connected with described mounting seat 1 by cylinder barrel bearing pin 3, described mounting seat 1 is connected with described lifting arm 6 by lifting arm bearing pin 2, the piston rod of described oil cylinder 4 is connected with described lifting arm 6 by piston rod bearing pin 5, described slide block 8 is connected with described lifting arm 6 by slider pin 7, described slide block 8 snaps in the chute of described actuating sleeve 9, described shifting block 10 is connected with rotary motive power head handpiece body by upper pin, described shifting block 10 is connected with described fixture block 11 by lower bearing pin.
Oil cylinder 4 be the present invention dynamically on unload the dynamical element of bar structure.The slider pin 7 being connected with lifting arm 6 is driven to do circular motion around lifting arm bearing pin 2 by oil cylinder 4, simultaneously slide block 8 is along the slide of actuating sleeve 9, afterwards drive actuating sleeve 9 in the vertical direction for linear motion, change into the rectilinear motion of actuating sleeve 9 in the vertical direction by slider pin 7 around the circular motion of lifting arm bearing pin 2.nullWhen actuating sleeve 9 in the vertical direction downward for linear motion time，Actuating sleeve 9 is touched and is stirred shifting block 10 and rotates around upper pin，Shifting block 10 is while rotating around upper pin simultaneously，Fixture block 11 is promoted to move in the draw-in groove that fixture block 11 snaps in drilling rod along the direction, the center of circle of rotary motive power head handpiece body，It is achieved thereby that the present invention dynamically on unload bar structure rapidly by the process of the drilling rod clamping of raise boring machine，In above-mentioned clamping process, drilling rod remains static，Rotary motive power head handpiece body limit rotates fixture block 11 checkpost and enters the draw-in groove of drilling rod and clamping drilling rod，Realize the present invention on drilling rod is under dynamically, unloads the process of bar structure clamping drilling rod，Rotary motive power head handpiece body is in rotary course，During the draw-in groove of fixture block 11 misalignment drilling rod，Fixture block 11 slides along the cylindrical of drilling rod，When fixture block 11 is directed at the draw-in groove of drilling rod，Fixture block 11 snaps in the draw-in groove of drilling rod immediately，Clamping is rapid.
Preferably, mounting seat 1 described in two is connected in parallel on described swiveling head casing the present invention, is provided with reinforcement described in two between mounting seat 1.Reinforcement is for ensureing the bonding strength of two mounting seats 1.
Preferably, described lifting arm 6 includes U-shaped frame and symmetry is fixed on two parallel arms bottom U-shaped frame U-shaped, connecting rod it is provided with between parallel arms described in two, described parallel arms includes the two side arms be arrangeding in parallel, mounting seat 1 described in two is clipped between the two side arms of parallel arms described in two respectively, and described mounting seat 1 is connected with described two side arms by described lifting arm bearing pin 2.
Preferably, described rotary motive power head handpiece body outer surface is outstanding overlaps described actuating sleeve 9, chute on described actuating sleeve 9 is annular groove, two U-shaped ends of the U-shaped frame of described lifting arm 6 are connected with described slide block 8 respectively through described slider pin 7, two U-shaped ends of described U-shaped frame connect respectively two described in slide block 8 all snap in described annular groove.
As shown in Figures 2 and 3, described shifting block 10 being provided with upper pin hole and downside pin axis hole, described upper pin is installed on described upper pin hole place by overcoat copper sheathing, and described lower bearing pin is installed on described downside pin axis hole place by overcoat resilient sleeve.Copper sheathing plays the protective effect of lower bearing pin.Resilient sleeve is for compensating the lower bearing pin change relative to lower bearing pin hole site.Shifting block 10 is when rotating around upper pin, shifting block 10 promotes fixture block 11 to move toward the direction, the center of circle of rotary motive power head handpiece body, downside pin axis hole is now subject to the state of partial load, there will be the state of the lower bearing pin heart different from downside pin axis hole, and the use of resilient sleeve compensate for the change of lower bearing pin and lower bearing pin hole site.
As shown in Figures 3 and 4, described fixture block 11 is installed on the arc groove place of described rotary motive power head handpiece body, described shifting block 10 is connected with described fixture block 11 by described lower bearing pin, described fixture block 11 is provided with arc section and planar section on the direction towards the described rotary motive power head handpiece body center of circle, and the radius of curvature of described arc section is more than or equal to the radius of curvature of described drilling rod cylindrical.
Arc groove on the rotary motive power head handpiece body of the present invention is arranged along rotary motive power head handpiece body circumference uniform distribution, in the arc groove being installed on rotary motive power head handpiece body of corresponding fixture block 11 circumference uniform distribution, actuating sleeve 9 in the vertical direction downward for linear motion time, stir each shifting block 10 simultaneously, and drive each fixture block 11 to move towards the direction, the center of circle of rotary motive power head handpiece body, and snap in each draw-in groove of drilling rod simultaneously simultaneously.
When original state, the planar section of described fixture block 11 is in the arc groove of described rotary motive power head handpiece body, and described shifting block 10 protrudes the outer surface of described rotary motive power head handpiece body.
When described actuating sleeve 9 in the vertical direction downward for linear motion time, described shifting block 10 is touched and stirred to described actuating sleeve 9, described shifting block 10 is made to rotate around described upper pin, described shifting block 10 promotes described fixture block 11 to move towards the direction, the center of circle of described rotary motive power head handpiece body simultaneously, and extremely the planar section of described fixture block 10 snaps in the draw-in groove of drilling rod.
In prior art, the version of fixture block is: fixture block is only provided with planar section on the direction, the center of circle towards rotary motive power head handpiece body, when fixture block does not move towards the direction, the center of circle of rotary motive power head handpiece body in position accurately and snaps in drilling rod, there will be fixture block and be subject to the very big propulsive thrust effect of drilling rod, as being 210KNm when the moment of torsion of drilling rod, the propulsive thrust of 600t can be produced, thus causing that oil cylinder destroys, it is impossible to continuing clamping drilling rod, service life is low.And instant invention overcomes the deficiency in existing fixture block structural design, the fixture block 11 of the present invention is provided with arc section and planar section on the direction towards the rotary motive power head handpiece body center of circle, and the radius of curvature of arc section is more than or equal to the radius of curvature of drilling rod cylindrical.No matter fixture block in which kind of position moves towards the direction, the center of circle of rotary motive power head handpiece body and snaps in drilling rod, all without occurring that fixture block 11 is subject to the propulsive thrust effect of drilling rod, safe and reliable.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; described in above-described embodiment and description is that principles of the invention is described; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements both fall within the claimed scope of the invention.Claimed scope is defined by appending claims and equivalent thereof.
Claims (10)
1. one kind for raise boring machine dynamic on unload bar structure, it is characterized in that: include mounting seat, lifting arm, oil cylinder, actuating sleeve, slide block, shifting block and fixture block, described mounting seat is connected with swiveling head casing, the cylinder barrel of described oil cylinder is connected with described mounting seat by cylinder barrel bearing pin, described mounting seat is connected with described lifting arm by lifting arm bearing pin, the piston rod of described oil cylinder is connected with described lifting arm by piston rod bearing pin, described slide block is connected with described lifting arm by slider pin, described slide block snaps in the chute of described actuating sleeve, described shifting block is connected with rotary motive power head handpiece body by upper pin, described shifting block is connected with described fixture block by lower bearing pin.
2. according to claim 1 a kind of for raise boring machine dynamic on unload bar structure, it is characterized in that, the described slider pin that described hydraulic oil cylinder driving is connected with described lifting arm does circular motion around described lifting arm bearing pin, described slide block, along described slide, simultaneously drives described actuating sleeve in the vertical direction for linear motion.
3. according to claim 2 a kind of for raise boring machine dynamic on unload bar structure, it is characterized in that, described actuating sleeve in the vertical direction downward for linear motion time, described actuating sleeve is stirred described shifting block and is rotated around described upper pin, and described fixture block moves in the draw-in groove that described fixture block snaps in drilling rod along the direction, the center of circle of described rotary motive power head handpiece body simultaneously.
4. according to claim 1 a kind of for raise boring machine dynamic on unload bar structure, it is characterised in that mounting seat described in two is connected in parallel on described swiveling head casing, is provided with reinforcement described in two between mounting seat.
5. according to claim 4 a kind of for raise boring machine dynamic on unload bar structure, it is characterized in that, described lifting arm includes U-shaped frame and symmetry is fixed on two parallel arms bottom U-shaped frame U-shaped, connecting rod it is provided with between parallel arms described in two, described parallel arms includes the two side arms be arrangeding in parallel, mounting seat described in two is clipped between the two side arms of parallel arms described in two respectively, and described mounting seat is connected with described two side arms by described lifting arm bearing pin.
6. according to claim 5 a kind of for raise boring machine dynamic on unload bar structure, it is characterized in that, described rotary motive power head handpiece body outer surface is outstanding overlaps described actuating sleeve, chute on described actuating sleeve is annular groove, two U-shaped ends of the U-shaped frame of described lifting arm are connected with described slide block respectively through described slider pin, two U-shaped ends of described U-shaped frame connect respectively two described in slide block all snap in described annular groove.
7. according to claim 1 a kind of for raise boring machine dynamic on unload bar structure, it is characterized in that, described shifting block is provided with upper pin hole and downside pin axis hole, described upper pin is installed on described upper pin hole place by overcoat copper sheathing, and described lower bearing pin is installed on described downside pin axis hole place by overcoat resilient sleeve.
8. according to claim 1 a kind of for raise boring machine dynamic on unload bar structure, it is characterized in that, described fixture block is installed on the arc groove place of described rotary motive power head handpiece body, described shifting block is connected with described fixture block by described lower bearing pin, described fixture block is provided with arc section and planar section on the direction towards the described rotary motive power head handpiece body center of circle, and the radius of curvature of described arc section is more than or equal to the radius of curvature of described drilling rod cylindrical.
9. according to claim 8 a kind of for raise boring machine dynamic on unload bar structure, it is characterized in that, when original state, the planar section of described fixture block is in the arc groove of described rotary motive power head handpiece body, and described shifting block protrudes the outer surface of described rotary motive power head handpiece body.
10. according to claim 9 a kind of for raise boring machine dynamic on unload bar structure, it is characterized in that, when described actuating sleeve in the vertical direction downward for linear motion time, described shifting block is touched and stirred to described actuating sleeve, described shifting block is made to rotate around described upper pin, described shifting block promotes described fixture block to move towards the direction, the center of circle of described rotary motive power head handpiece body simultaneously, and extremely the planar section of described fixture block snaps in the draw-in groove of drilling rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610250453.9A CN105735917B (en) | 2016-04-21 | 2016-04-21 | Rod structure is unloaded in a kind of dynamic for raise boring machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610250453.9A CN105735917B (en) | 2016-04-21 | 2016-04-21 | Rod structure is unloaded in a kind of dynamic for raise boring machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105735917A true CN105735917A (en) | 2016-07-06 |
| CN105735917B CN105735917B (en) | 2018-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610250453.9A Active CN105735917B (en) | 2016-04-21 | 2016-04-21 | Rod structure is unloaded in a kind of dynamic for raise boring machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105735917B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4862959A (en) * | 1987-01-22 | 1989-09-05 | Inco Limited | Self-adjusting bit basket |
| CN102720450A (en) * | 2012-06-15 | 2012-10-10 | 兰桥昌 | Automatic twisting machine of spindle-type drilling machine |
| CN202578583U (en) * | 2012-04-09 | 2012-12-05 | 长沙矿山研究院有限责任公司 | Auxiliary bit remover of raise boring machine |
| CN202578574U (en) * | 2012-04-10 | 2012-12-05 | 长沙矿山研究院有限责任公司 | Hydraulic ferrule clamping chuck of raise boring machine |
| CN205577912U (en) * | 2016-04-21 | 2016-09-14 | 湖南创远高新机械有限责任公司 | A unload pole structure in developments for raise boring machine |
-
2016
- 2016-04-21 CN CN201610250453.9A patent/CN105735917B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4862959A (en) * | 1987-01-22 | 1989-09-05 | Inco Limited | Self-adjusting bit basket |
| CN202578583U (en) * | 2012-04-09 | 2012-12-05 | 长沙矿山研究院有限责任公司 | Auxiliary bit remover of raise boring machine |
| CN202578574U (en) * | 2012-04-10 | 2012-12-05 | 长沙矿山研究院有限责任公司 | Hydraulic ferrule clamping chuck of raise boring machine |
| CN102720450A (en) * | 2012-06-15 | 2012-10-10 | 兰桥昌 | Automatic twisting machine of spindle-type drilling machine |
| CN205577912U (en) * | 2016-04-21 | 2016-09-14 | 湖南创远高新机械有限责任公司 | A unload pole structure in developments for raise boring machine |
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| Publication number | Publication date |
|---|---|
| CN105735917B (en) | 2018-04-13 |
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