CN102251750A - Holder - Google Patents
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- CN102251750A CN102251750A CN2011101612919A CN201110161291A CN102251750A CN 102251750 A CN102251750 A CN 102251750A CN 2011101612919 A CN2011101612919 A CN 2011101612919A CN 201110161291 A CN201110161291 A CN 201110161291A CN 102251750 A CN102251750 A CN 102251750A
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- piston rod
- fixed mount
- piston
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- clamper
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Abstract
The invention belongs to the field of mine machinery and particularly relates to a holder for a mine tunnel drilling machine. The holder provided by the invention comprises a left piston cylinder unit and a right piston cylinder unit which are respectively arranged at the two sides of an axis of a drill rod; piston rods of the left and right piston cylinder units are oppositely arranged; the front ends of the rod bodies of the piston rods are fixedly connected with a left holding block and a right holding block which are matched to be used for holding the drill rod; each piston cylinder unit at least comprises a piston cylinder; the piston cylinders are bidirectional hydraulic piston cylinders; and the left and right piston cylinder units are mutually reverse to form thrust or tension symmetrical arrangement. The holder provided by the invention has the advantages of simplicity in structure, stability and reliability in operation and long service life.
Description
Technical field
The invention belongs to the mine equipment field, be specifically related to a kind of clamper that is used for mining underground drill rig.
Background technology
Underground drill rig is the rig that is used in the work of creeping in the underground passage specially; rig all is provided with clamper usually; its effect is important to be to be used to protect drilling rod in the hole; prevent drilling rod slippage in the hole; also can cooperate the automatic dismounting of carrying out drilling rod with unit head; hydraulic gripper is because of safe and convenient to use, and clamping force is widely adopted greatly.
Hydraulic gripper commonly used at present mainly contains normally closed type, three kinds of open in usual and combined types, to this, " the colliery drilling rod hydraulic gripper " of Hill coal mine in Jiangsu Equipment Co (ZL201020544979.6), " a kind of open-top composite clamp holder " of Sian Branch Of China Coal Research Institute (ZL201010108949.5) and all on the books in " compound hydraulic gripper " application text (ZL200820100167.5) of Coal Scientific Research Institute Chongqing Institute, mainly comprise the left clamping device and the right clamping device that can reach reverse motions in opposite directions, left and right sides clamping device is provided with the left and right sides slips that is used for the clamping drilling rod that matches at its place of joining, thrust unit all is set, as unidirectional oil cylinder and elastic device (as spring etc.) in the sandwich device.During actual the use, or be responsible for clamping drilling rod as the spring of normally closed type clamper, unidirectional oil cylinder is responsible for unclamping, or as unidirectional oil cylinder clamping open in usual, spring unclamps, or arranges unidirectional oil cylinder as a side clamping device of combined type, and opposite side is arranged elastic device, rely on spring " to be pressed " and realize clamping, rely on another the unidirectional oil cylinder that is arranged in elastic device one side to realize unclamp operation simultaneously.The general defective of technique scheme is: at first, elastic device such as spring etc., dependence self deformation own reaches the clamping purpose, also just certainly exist fatigue strength, the environment that is used is complicated more, and the compressing and stretching frequency is big more, inevitable shortening further in its application life, this just needs regular Maintenance and Repair of staff and dismounting and change, causes puzzlement to construction; Secondly, when needs are changed spring, often need the sandwich device to change together, otherwise inevitable because its chucking power or unclamp the unbalanced of power and cause departing from of Clamping Center, final because the phenomenon appearance of drilling rod bending or drilling-rod external wall polishing slips appears in the axis of the axis runout borer drill rod of actual clamping, thus the raising of maintenance cost caused; Once more, unclamp at unidirectional oil cylinder, in the normally closed type hydraulic gripper that spring clamps, the size of its chucking power often depends on the tension force that spring produces, need big specification or more spring, yet the increase of its power must cause the oil cylinder unilateral thrust to need to increase again, open clamp port so that overcome spring force, this just causes the increase of clamper overall volume and the reduction that hydraulic pressure opens and closes efficient again, both often can't get both, in case and this kind clamper spring fatigue occurs and just there is very big production hidden danger in the chucking power deficiency, and in the composite hydraulic clamper, because elastic device is in " being pressed " state all the time, after work a period of time, the elastic device fatigue that is pressed, tension force reduces, and still constant as the unidirectional oil cylinder hydraulic power of the side of exerting pressure, the skew in the clamping axle center of clamping device appears, and finally cause the drilling rod axial line not overlap with the axis of clamping through hole, the phenomenon of drilling rod polishing slips inwall occurs, even the generation of the drilling rod bending and the phenomenon that fractures also can occur; At last, because particular job environment of clamper, clamper no matter which kind of, alluvial and the slips damage replacing problems such as mud that all have clamp port, slips in the such scheme all is arranged in the external shell, need to change in case alluvials such as the mud of clamp port need cleaning or slips to damage, often need whole stripping device, cause the waste in man-hour.
Summary of the invention
The purpose of this invention is to provide a kind of clamper simple in structure, the reliable and long service life of its working stability.
For achieving the above object, the present invention has adopted following technical scheme: a kind of clamper, the left and right piston rod unit that comprises the drill rod axis both sides that are placed in, the piston rod of described left and right piston rod unit is arranged in opposite directions, its lever front end is connected with the left and right grip block that is used for the clamping drilling rod that matches, described each piston rod unit comprises a piston rod at least, described piston rod is the bidirectional hydraulic piston cylinder, described left and right piston rod unit each other oppositely and the thrust or the pulling force symmetric arrangement that constitute.
Beneficial effect of the present invention is: after adopting said structure, abandoned the structure of establishing elastic device in traditional, also just avoided adopting high maintenance cost and the operation hidden danger that elastic device brought, simultaneously, simple hydraulic pressure clamping, guaranteed that also its overall structure is simple, be easy to safeguard, working stability is reliable, simultaneously its chucking power all can be directly realizes accurately regulating by regulating pump etc., regulates and be easy to the resilient clamp of deformation than old-fashioned being difficult to, and the present invention is more convenient quick, and since the self lubricity of hydraulic pressure, its longer service life.
Description of drawings
Structural representation when Fig. 1 is applied to underground drill rig for a of the present invention;
Fig. 2 is a structural representation of the present invention;
Fig. 3 is the A-A sectional view of Fig. 2;
Fig. 4 is the I part partial enlarged drawing of Fig. 2.
The specific embodiment
A kind of clamper, the left and right piston rod unit that comprises the drill rod axis both sides that are placed in, the piston rod of described left and right piston rod unit is arranged in opposite directions, its lever front end is connected with the left and right grip block that is used for the clamping drilling rod 11,12 that matches, described each piston rod unit comprises a piston rod at least, described piston rod is the bidirectional hydraulic piston cylinder, described left and right piston rod unit each other oppositely and the thrust or the pulling force symmetric arrangement that constitute, shown in Fig. 2-3.
Further, consider that the applied environment of the present invention is abominable, inevitably there is swing in drilling rod when rotating simultaneously, for avoiding drilling rod to be positioned at the left side of its axis both sides because of touching, right grip block 11,12 and drilling rod body of rod scraping occurs even damage phenomenon, described clamper also is included in a left side, right grip block 11, the bearing unit 30 that is used to retrain and help drilling rod work during 12 separation, described bearing unit 30 is arranged at a left side, on the current path of the drilling rod of right piston rod unit, the axis of described bearing 31 and drilling rod are installed dead in line, described bearing 31 internal diameters are slightly larger than drill pipe diameter, as shown in Figure 3.
As the present invention further optimization scheme: shown in Fig. 2-3, the piston rod number of described left and right piston rod unit is one, the dead in line setting of described left and right piston rod unit.
Further, described clamper comprises fixed mount 20, described left and right piston rod unit comprises cylinder body, piston and the piston rod along drilling rod 40 axis symmetric arrangement, described fixed mount 20 is postponed and affixed forming for the abutting end on the left and right cylinder body, described fixed mount 20 profiles are the cover tubular, described piston and piston rod be positioned at fixed mount 20 inner and and its inwall between constitute matching relationship, described fixed mount 20 radially offers for the current path 23 of drilling rod 40 along it in the middle.
As further qualification to such scheme, described bearing unit 30 is arranged at the other end away from the drilling rod bare terminal end of path 23, for the fixing-stable that guarantees 20 of bearing unit 30 and fixed mounts reliable, the annular slab 32 that described bearing unit 30 comprises bearing 31 and is used for bearing 31 is fixed in fixed mount 20 outer wall places, as shown in Figure 3.
Further, for realizing the routing motion of piston rod and piston and fixed mount 20 inwalls, described fixed mount 20 comprises the liquid inlet and outlet 21 that is used to push the fixed mount inner carrier.For further reducing its cost, describedly advance, liquid outlet 21 is made as three, wherein two are communicated with two-piston cylinder unit back cavity portion respectively, another is communicated with one of them piston rod unit ante-chamber portion, be provided with the connection duct 22 that is communicated with two-piston cylinder unit ante-chamber portion in the described fixed mount 20, like this, during practical operation, by to being communicated with advancing of two-piston cylinder unit back cavity portion respectively, liquid outlet 21 oil transportations realize a left side, right grip block 11,12 clamp operation, by to being communicated with advancing of one of them piston rod unit ante-chamber portion, liquid outlet 21 oil transportations realize a left side, right grip block 11,12 lock out operation, connecting 22 in duct is on a left side, right grip block 11, play oil transportation path and balanced oil pressure effect during 12 separation, thereby advance by one, liquid outlet 21 can be realized a left side, motion in the time of right piston rod unit is shown in Fig. 2-3.
Shown in Fig. 2-4, for avoiding a left side, right grip block 11,12 overturn around fixed mount 20 axle center, influence its operate as normal, a described left side, right grip block 11, the 12 profile side of being body bulks, its sides adjacent is provided with the arc clamp port 13 that is complementary with drilling rod 40 outer walls, described fixed mount 20 is circular hole with the piston cooperation place, itself and a left side, right grip block 11,12 auxiliary sections are and a left side, right grip block 11, the square hole shape that 12 profiles are adaptive, in other words, the inwall that is to say the fixed mount 20 of cover tubular is rendered as the two terminal circle pass, the structure of middle part square groove, thereby retrain a left side by square hole shape hole road, right grip block 11,12 direct of travel, guarantee its correct reliable clamping drilling rod
Simultaneously, be provided with dovetail groove 14 with the tailpiece of the piston rod cooperation place on the described left and right grip block 11,12, described tailpiece of the piston rod is provided with the dovetail shaped voussoir that matches with it, and both clampings cooperate.
Consider a left side, right grip block 11,12 convenient installation and replacing, described fixed mount 20 also comprises the baffle plate 24 of its front and back end that is placed in, surround between described baffle plate 24 inwalls and fixed mount 20 inwalls and constitute the above-mentioned left side that supplies, right grip block 11, the square hole shape hole road of 12 operations, affixed between described bearing unit 30 and one side shield 24 outer walls, a described left side, right grip block 11, dovetail groove 14 flute length direction paralleled paths 23 on 12 run through the direction setting, described baffle plate 24 is two and the drilling rod 40 axis both sides that are placed in, and its abutting end offers the arc-shaped notch 241 in the current path that is used to dodge drilling rod 40.In the practical operation, when left and right grip block 11,12 damages need be changed, only need directly to dismantle baffle plate 24, can take out the left and right grip block 11,12 that cooperates with tailpiece of the piston rod formation flute profile respectively, efficient and convenient.
Further, for solving the alluvial problem of clamp port mud on the clamper etc., described fixed mount 20 is provided with for drilling rod 40 current path 23 positive bottoms at it and runs through the dirty hole 25 of letting out of inside and outside wall, thereby realizes the eliminating in time fast of clamp port mud etc.Simultaneously, be furnished with concave convex texture on the clamping face of the arc clamp port 13 on the left and right grip block 11,12, to realize of the reliable effectively clamping of left and right grip block 11,12 for drilling-rod external wall.
Claims (10)
1. clamper, the left and right piston rod unit that comprises the drill rod axis both sides that are placed in, the piston rod of described left and right piston rod unit is arranged in opposite directions, its lever front end is connected with the left and right grip block that is used for the clamping drilling rod (11,12) that matches, it is characterized in that: described each piston rod unit comprises a piston rod at least, described piston rod is the bidirectional hydraulic piston cylinder, described left and right piston rod unit each other oppositely and the thrust or the pulling force symmetric arrangement that constitute.
2. clamper according to claim 1, it is characterized in that: described clamper also is included in the bearing unit (30) that is used to retrain and help drilling rod work when left and right grip block (11,12) separates, described bearing unit (30) is arranged on the current path of drilling rod of left and right piston rod unit, the axis of described bearing (31) and drilling rod are installed dead in line, and described bearing (31) internal diameter is slightly larger than drill pipe diameter.
3. clamper according to claim 2 is characterized in that: the piston rod number of described left and right piston rod unit is one, the dead in line setting of described left and right piston rod unit.
4. clamper according to claim 3, it is characterized in that: described clamper comprises fixed mount (20), described left and right piston rod unit comprises cylinder body, piston and the piston rod along the drill rod axis symmetric arrangement, described fixed mount (20) is postponed and affixed forming for the abutting end on the left and right cylinder body, described fixed mount (20) profile is the cover tubular, described piston and piston rod be positioned at fixed mount (20) inner and and its inwall between constitute matching relationship, described fixed mount (20) radially offers for the current path (23) of drilling rod along it in the middle.
5. clamper according to claim 4, it is characterized in that: described bearing unit (30) is arranged at the other end away from the drilling rod bare terminal end of path (23), the annular slab (32) that described bearing unit (30) comprises bearing (31) and is used for bearing (31) is fixed in fixed mount (20) outer wall place.
6. clamper according to claim 5, it is characterized in that: described fixed mount (20) comprises the liquid inlet and outlet (21) that is used to push the fixed mount inner carrier, described liquid inlet and outlet (21) is three, wherein two are communicated with two-piston cylinder unit back cavity portion respectively, another is communicated with one of them piston rod unit ante-chamber portion, is provided with the connection duct (22) that is communicated with two-piston cylinder unit ante-chamber portion in the described fixed mount (20).
7. clamper according to claim 6, it is characterized in that: a described left side, right grip block (11,12) the profile side of being body bulk, its sides adjacent is provided with the arc clamp port (13) that is complementary with drilling-rod external wall, described fixed mount (20) is circular hole with the piston cooperation place, itself and a left side, right grip block (11,12) auxiliary section is and a left side, right grip block (11,12) the adaptive square hole shape of profile, a described left side, right grip block (11,12) be provided with dovetail groove (14) with the tailpiece of the piston rod cooperation place on, described tailpiece of the piston rod is provided with the dovetail shaped voussoir that matches with it, and both clampings cooperate.
8. clamper according to claim 7, it is characterized in that: described fixed mount (20) also comprises the baffle plate (24) of its front and back end that is placed in, surround between described baffle plate (24) inwall and fixed mount (20) inwall and constitute for a left side, right grip block (11,12) Yun Hang square hole shape hole road, affixed between described bearing unit (30) and one side shield (24) outer wall, a described left side, right grip block (11,12) dovetail groove on (14) flute length direction paralleled path (23) run through the direction setting, described baffle plate (24) is two and the drill rod axis both sides that are placed in, and its abutting end offers the arc-shaped notch (241) in the current path that is used to dodge drilling rod.
9. according to any described clamper of claim in the claim 4 to 8, it is characterized in that: described fixed mount (20) is provided with for the positive bottom of the current path (23) of drilling rod at it and runs through the dirty hole of letting out of inside and outside wall (25).
10. according to any described clamper of claim in the claim 4 to 8, it is characterized in that: be furnished with concave convex texture on the clamping face of the arc clamp port (13) on the left and right grip block (11,12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110161291 CN102251750B (en) | 2011-06-16 | 2011-06-16 | Holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110161291 CN102251750B (en) | 2011-06-16 | 2011-06-16 | Holder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102251750A true CN102251750A (en) | 2011-11-23 |
| CN102251750B CN102251750B (en) | 2013-11-06 |
Family
ID=44979287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110161291 Expired - Fee Related CN102251750B (en) | 2011-06-16 | 2011-06-16 | Holder |
Country Status (1)
| Country | Link |
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| CN (1) | CN102251750B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982148A (en) * | 2014-05-23 | 2014-08-13 | 浙江杭钻机械制造股份有限公司 | Quick-disassembly type drilling machine clamp holder |
| CN106150403A (en) * | 2016-08-26 | 2016-11-23 | 陕西斯达煤矿安全装备有限公司 | A kind of drill head using mechanical gripper |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2132825Y (en) * | 1992-07-10 | 1993-05-12 | 马世俊 | Automatic pneumatic pipe elevator |
| RU2023133C1 (en) * | 1991-09-11 | 1994-11-15 | Акционерное общество "Алтайгеомаш" | Clamping device for mechanized delivery of drill pipes |
| US20070163807A1 (en) * | 2006-01-18 | 2007-07-19 | Jens Lutzhoft | Apparatus for vertically supporting pipes |
| CN101363310A (en) * | 2008-09-28 | 2009-02-11 | 煤炭科学研究总院重庆研究院 | Linkage hydraulic clamper for mining fully hydraulic rig |
| CN201241622Y (en) * | 2008-08-18 | 2009-05-20 | 深圳市钻通工程机械股份有限公司 | Drill rod clamper of non-digging pipe laying drill |
| CN101775965A (en) * | 2010-02-09 | 2010-07-14 | 煤炭科学研究总院西安研究院 | Open-top composite clamp holder |
| CN202117582U (en) * | 2011-06-16 | 2012-01-18 | 合肥航天液压机械有限公司 | Clamp holder |
-
2011
- 2011-06-16 CN CN 201110161291 patent/CN102251750B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2023133C1 (en) * | 1991-09-11 | 1994-11-15 | Акционерное общество "Алтайгеомаш" | Clamping device for mechanized delivery of drill pipes |
| CN2132825Y (en) * | 1992-07-10 | 1993-05-12 | 马世俊 | Automatic pneumatic pipe elevator |
| US20070163807A1 (en) * | 2006-01-18 | 2007-07-19 | Jens Lutzhoft | Apparatus for vertically supporting pipes |
| CN201241622Y (en) * | 2008-08-18 | 2009-05-20 | 深圳市钻通工程机械股份有限公司 | Drill rod clamper of non-digging pipe laying drill |
| CN101363310A (en) * | 2008-09-28 | 2009-02-11 | 煤炭科学研究总院重庆研究院 | Linkage hydraulic clamper for mining fully hydraulic rig |
| CN101775965A (en) * | 2010-02-09 | 2010-07-14 | 煤炭科学研究总院西安研究院 | Open-top composite clamp holder |
| CN202117582U (en) * | 2011-06-16 | 2012-01-18 | 合肥航天液压机械有限公司 | Clamp holder |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982148A (en) * | 2014-05-23 | 2014-08-13 | 浙江杭钻机械制造股份有限公司 | Quick-disassembly type drilling machine clamp holder |
| CN106150403A (en) * | 2016-08-26 | 2016-11-23 | 陕西斯达煤矿安全装备有限公司 | A kind of drill head using mechanical gripper |
| CN106150403B (en) * | 2016-08-26 | 2018-08-03 | 陕西斯达防爆安全科技股份有限公司 | A kind of drill head using mechanical gripper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102251750B (en) | 2013-11-06 |
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| C14 | Grant of patent or utility model | ||
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| ASS | Succession or assignment of patent right |
Owner name: HUANGSHAN HUIZHOU ANHUA CONSTRUCTION MACHINERY CO. Free format text: FORMER OWNER: HEFEI AEROSPACE HYDRAULIC MACHINERY CO., LTD. Effective date: 20150617 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20150617 Address after: 245900 Yao Village area, Chengdong Industrial Park, Huizhou District, Anhui, Huangshan City Patentee after: Huangshan Huizhou Anhua Construction Machinery Co., Ltd. Address before: 230088, cherry Road 5, Bai Yan Science Park, hi tech Zone, Anhui, Hefei Patentee before: Hefei Aerospace Hydraulic Machinery Co., Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20160824 Address after: 230088, cherry Road 5, Bai Yan Science Park, hi tech Zone, Anhui, Hefei Patentee after: Hefei Aerospace Hydraulic Machinery Co., Ltd. Address before: 245900 Yao Village area, Chengdong Industrial Park, Huizhou District, Anhui, Huangshan City Patentee before: Huangshan Huizhou Anhua Construction Machinery Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20180616 |
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| CF01 | Termination of patent right due to non-payment of annual fee |