CN101956537A - Hydraulic chunk with function of compensatory clamping - Google Patents
Hydraulic chunk with function of compensatory clamping Download PDFInfo
- Publication number
- CN101956537A CN101956537A CN2010102758966A CN201010275896A CN101956537A CN 101956537 A CN101956537 A CN 101956537A CN 2010102758966 A CN2010102758966 A CN 2010102758966A CN 201010275896 A CN201010275896 A CN 201010275896A CN 101956537 A CN101956537 A CN 101956537A
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- Prior art keywords
- slip sleeve
- piston rod
- bearing
- piston
- cylinder barrel
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Abstract
The invention discloses a hydraulic chunk with function of compensatory clamping, which comprises a piston, a hollow piston rod, a cylinder barrel, a connecting cover, a disc spring, a aligning roller bearing, a slip sleeve, a main shaft, a thrust bearing and a slip. The piston rod and the piston are sleeved in the cylinder barrel, the piston is fixed at the top end of the piston rod, the connection cover and the cylinder barrel are fixedly connected, one end of the disc spring is positioned on the shaft shoulder of the main shaft and the other end is positioned on the slip sleeve, the slip sleeve is arranged at the hollow part of the piston rod and is sleeved on the main shaft, a bearing positioning ring is arranged in the middle of the slip sleeve, the aligning roller bearing and the thrust bearing are respectively arranged at the two ends of the bearing positioning ring on the slip sleeve and positioned at the hollow part of the piston rod, and the slip is arranged in the slip sleeve. By the invention, the requirement of a high-torque drilling machine on great clamp force is met; a ring-shaped double-acting oil cylinder is used for auxiliary clamping so that a problem on deformation failure of a spring can be solved; and hydraulic pressure can be converted into clamping force by utilizing a cavity among the hydraulic cylinder barrel, the piston and the piston rod. The invention has the advantages of simple structure and long service life.
Description
Technical field
What the present invention relates to is the oild chuck that a kind of rig is used, in particular a kind of oild chuck that compensates clamping.
Background technology
Oild chuck is rig when work to clamp drilling rod, and transfer torque is realized drill bit rotary cutting and the important process parts that creep into, and the reliability of clamping is the key that can rig operate as normal.The oild chuck of domestic existing rig has at present: spring force clamps, hydraulic unlock (clamp and be normality); Hydraulic clamp, spring force unclamp (unclamp and be normality); Hydraulic clamp, the pattern of unclamping.
The oild chuck that spring clamps causes clamping force not meet the demands and lost efficacy because the elastic force of spring can reduce gradually along with the fatigue of spring.The oild chuck of existing clamping compensation is generally external two oil cylinders that are parallel to each other, though can realize the compensation hydraulic clamping force, but the symmetric case that oil cylinder is installed, the synchronism of hydraulic cylinder, the homogeneity of oil cylinder extension elongation etc. all can cause oil cylinder to stretch out and asynchronously cause unbalance loading and cause damage of bearings, and chuck was lost efficacy.
The chuck of hydraulic clamp makes gum cover produce radial contraction by hydraulic oil and realizes clamping, when moment of torsion is big or be subjected to impacting be gum cover with slips between can produce relative rotation, gum cover weares and teares easily, and in addition, clinker dress thing enters slips and gum cover spare part can cause the gum cover breakage and chuck was lost efficacy.The needs of aspect are set owing to rig safety in addition, when using the chuck of hydraulic clamp, the clamper that necessary supporting spring clamps, and equally also there is problem tired and clamping force decline in the spring of clamper.
Summary of the invention
Goal of the invention: the objective of the invention is to overcome the deficiencies in the prior art, a kind of oild chuck that compensates clamping is provided, realized the spring clamping, compensation hydraulic, the needed power of clamping drilling rod, based on the elastic force of spring, the thrust that annular cylinder barrel produces is for replenishing, realize reliable clamping, can satisfy the required big clamping force of high pulling torque rig simultaneously.
Technical scheme: the present invention is achieved by the following technical solutions, the present invention includes piston, the piston rod of hollow, cylinder barrel, connection cover, the dish spring, self-aligning roller bearing, slip sleeve, main shaft, thrust bearing and slips, piston rod and piston bush are connected in the cylinder barrel, piston is fixed on the top of piston rod, connection cover and cylinder barrel are fixedly linked, one end of dish spring is positioned on the shaft shoulder of main shaft, the other end is positioned on the slip sleeve, slip sleeve is located at the cavity of piston rod, slip sleeve is socketed on the main shaft, the middle part of slip sleeve is provided with the bearing locating ring, self-aligning roller bearing and thrust bearing are located at the two ends of slip sleeve upper bearing (metal) locating ring respectively and are positioned at the cavity of piston rod, and slips is located in the slip sleeve.
One end of described dish spring withstands on the shaft shoulder of main shaft by spring base.
In order to realize the axial location of thrust bearing, the end of described piston rod is provided with bearing cover, and described bearing cover links to each other with thrust bearing.
Described slips is provided with the slips collar, and the slips collar is fixed on spindle nose by nut.
Described slips slides by T-slot and is located in the slip sleeve, and contacts with the slip sleeve inclined-plane, realizes that reinforcement clamps, and effect is better.
The piston rod of described piston, hollow and cylinder barrel have constituted annular two-way cylinder, have realized that cylinder thrust is converted to clamping force.
Thrust bearing, slip sleeve, self-aligning roller bearing and bearing cover in the described piston rod constituted the bearing support of a sealing.
When the present invention works, axial force ejection slip sleeve by the generation of dish spring, slip sleeve by and slips between the inclined-plane be converted into radial load and realize the real clamping of implementing slips to drilling rod of reinforcement, hydraulic oil acts on the A chamber or the B chamber of annular cylinder respectively, the output bidirectional propulsion, during B chamber oil-feed, realize the hydraulic clamp compensation; During A chamber oil-feed, the compact disc spring realizes that slips unclamps drilling rod.
Beneficial effect: the present invention can satisfy the required big clamping force of high pulling torque rig, uses the auxiliary clamping of annular two-way cylinder, has solved the problem that camber of spring lost efficacy, and the present invention is simple in structure, long service life.
Description of drawings
Accompanying drawing is a structural representation of the present invention.
The specific embodiment
Below embodiments of the invention are elaborated, present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in drawings, present embodiment comprises casing 1, connection cover 2, spring base 3, piston 4, the piston rod 5 of hollow, cylinder barrel 6, dish spring 7, self-aligning roller bearing 8, slip sleeve 9, main shaft 10, thrust bearing 11 and slips 13, wherein: piston rod 5 and piston 4 are socketed in the cylinder barrel 6, piston 4 is fixed on the top of piston rod 5, connection cover 2 and cylinder barrel 6 are fixedly linked, one end of dish spring 7 is positioned on the shaft shoulder of main shaft 10, the other end is positioned on the slip sleeve 9, slip sleeve 9 is located at the cavity of piston rod 5, slip sleeve 9 is socketed on the main shaft 10, the middle part of slip sleeve 9 is fixed with the bearing locating ring, self-aligning roller bearing 8 and thrust bearing 11 are located at the two ends of slip sleeve 9 upper bearing (metal) locating rings respectively and are positioned at the cavity of piston rod 5, and slips 13 is located in the slip sleeve 9.
One end of described dish spring 7 withstands on the shaft shoulder of main shaft 10 by spring base.
In order to realize the axial location of thrust bearing, the end of described piston rod 5 is provided with bearing cover 12, and described bearing cover 12 links to each other with thrust bearing 11.
Described slips 13 slides by T-slot and is located in the slip sleeve 9, and contacts with slip sleeve 9 inclined-planes, and clamping action is better.
The piston rod 5 and the cylinder barrel 6 of described piston 4, hollow have constituted annular two-way cylinder, utilize the cavity (A chamber and B chamber) between cylinder barrel 6, piston 4 and the piston rod 5 to realize that hydraulic coupling is converted to clamping force, utilize the cavity of piston rod 5 to realize the clamping action of dish spring 7.
Thrust bearing 11, slip sleeve 9, self-aligning roller bearing 8 and bearing cover 12 in the described piston rod 5 constituted the bearing support of a sealing.
Described slips 13 is provided with slips collar 14, and slips collar 14 is fixed on the external box of microvave 1 by nut 15.
When the present invention works, the power that at first is dish spring 7 realizes clamping by 13 pairs of rigs of slips, realize operate as normal, when high pulling torque deep hole rig or drilling rod surface abrasion diameter diminish, when the clamping force that dish spring 7 produces is not enough, the use oil cylinder clamps, when hydraulic oil acts on B chamber in the cylinder barrel 6, piston 4 and piston rod 5 move right, the oil return of A chamber, and piston rod 5 promotes self-aligning roller bearing 8, produce thrust to the right, and promote slip sleeve 9 and move right, move to the center and realized clamping compensation thereby promote slips 13, and then realized that main shaft 10 drives the drilling rods rotation.
Claims (7)
1. oild chuck that can compensate clamping, comprise piston (4), the piston rod of hollow (5), cylinder barrel (6), connection cover (2), dish spring (7), self-aligning roller bearing (8), slip sleeve (9), main shaft (10), thrust bearing (11) and slips (13), it is characterized in that: piston rod (5) and piston (4) are socketed in the cylinder barrel (6), piston (4) is fixed on the top of piston rod (5), connection cover (2) and cylinder barrel (6) are fixedly linked, one end of dish spring (7) is positioned at the shaft shoulder of main shaft (10), the other end is positioned on the slip sleeve (9), slip sleeve (9) is located at the cavity of piston rod (5), slip sleeve (9) is socketed on the main shaft (10), the middle part of slip sleeve (9) is provided with the bearing locating ring, self-aligning roller bearing (8) and thrust bearing (11) are located at the two ends of slip sleeve (9) upper bearing (metal) locating ring respectively and are positioned at the cavity of piston rod (5), and slips (13) is located in the slip sleeve (9).
2. the oild chuck that compensates clamping according to claim 1 is characterized in that: an end of described dish spring (7) withstands on the shaft shoulder of main shaft (10) by spring base.
3. the oild chuck that compensates clamping according to claim 1 is characterized in that: the end of described piston rod (5) is provided with bearing cover, and described bearing cover links to each other with thrust bearing (11).
4. the oild chuck that compensates clamping according to claim 1 is characterized in that: described slips (13) is provided with slips collar (14).
5. the oild chuck that compensates clamping according to claim 1 is characterized in that: described slips (13) slides by T-slot and is located in the slip sleeve (9), and contacts with slip sleeve (9) inclined-plane.
6. the oild chuck that compensates clamping according to claim 1 is characterized in that: the piston rod (5) and the cylinder barrel (6) of described piston (4), hollow have constituted annular two-way cylinder.
7. the oild chuck that compensates clamping according to claim 3 is characterized in that: thrust bearing (11), slip sleeve (9), self-aligning roller bearing (8) and the bearing cover in the described piston rod (5) constituted the bearing support of a sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102758966A CN101956537A (en) | 2010-09-07 | 2010-09-07 | Hydraulic chunk with function of compensatory clamping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102758966A CN101956537A (en) | 2010-09-07 | 2010-09-07 | Hydraulic chunk with function of compensatory clamping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101956537A true CN101956537A (en) | 2011-01-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102758966A Pending CN101956537A (en) | 2010-09-07 | 2010-09-07 | Hydraulic chunk with function of compensatory clamping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101956537A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434116A (en) * | 2012-01-17 | 2012-05-02 | 江苏省无锡探矿机械总厂有限公司 | Nitrogen spring type hydraulic chuck |
| CN102720449A (en) * | 2012-06-15 | 2012-10-10 | 兰桥昌 | Clamping mechanism of automatic twisting machine of spindle-type drilling machine |
| CN102900384A (en) * | 2012-10-19 | 2013-01-30 | 徐州五洋科技股份有限公司 | Normally-closed hydraulic chuck for coalmine driller |
| CN103410455A (en) * | 2013-08-13 | 2013-11-27 | 镇江安达煤矿专用设备有限公司 | Compensation clamping hydraulic chuck |
| CN103706943A (en) * | 2013-11-27 | 2014-04-09 | 江苏锐成机械有限公司 | Disc spring type wedge-shaped hydraulic chuck for friction welding machine |
| CN103899259A (en) * | 2014-03-13 | 2014-07-02 | 平顶山市铁福来机电设备有限公司 | Mine rubber-sleeve-free hydraulic chuck |
| CN105728769A (en) * | 2016-04-20 | 2016-07-06 | 车沛远 | Hydraulic quick-clamping device for bar material |
| CN107060665A (en) * | 2017-03-31 | 2017-08-18 | 淮南矿业(集团)有限责任公司 | All-hydraulic drill is semi-automatic to add chi device |
| CN107083936A (en) * | 2017-04-25 | 2017-08-22 | 中煤科工集团重庆研究院有限公司 | Automatically reset hole packer |
| CN108544278A (en) * | 2018-06-15 | 2018-09-18 | 中原内配集团股份有限公司 | A kind of multi-dot hydraulic pressure clamps, self-centering type cylindrical work fixture |
| CN111395985A (en) * | 2020-04-10 | 2020-07-10 | 长江岩土工程总公司（武汉） | Drill rod three-jaw clamp and using method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3552507A (en) * | 1968-11-25 | 1971-01-05 | Cicero C Brown | System for rotary drilling of wells using casing as the drill string |
| JPH11190186A (en) * | 1997-12-26 | 1999-07-13 | Koken Boring Mach Co Ltd | Rod chuck device |
| CN200952364Y (en) * | 2006-09-29 | 2007-09-26 | 重庆科技学院 | Whole hydraulic spider for gas drainage drilling machine |
| CN201013269Y (en) * | 2007-03-13 | 2008-01-30 | 陕西省核工业地质局工程机械研究所 | Lever-type hydraulic chuck |
| CN201258701Y (en) * | 2008-09-08 | 2009-06-17 | 浙江杭钻机械制造股份有限公司 | Combined hydraulic clamping chuck |
-
2010
- 2010-09-07 CN CN2010102758966A patent/CN101956537A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3552507A (en) * | 1968-11-25 | 1971-01-05 | Cicero C Brown | System for rotary drilling of wells using casing as the drill string |
| JPH11190186A (en) * | 1997-12-26 | 1999-07-13 | Koken Boring Mach Co Ltd | Rod chuck device |
| CN200952364Y (en) * | 2006-09-29 | 2007-09-26 | 重庆科技学院 | Whole hydraulic spider for gas drainage drilling machine |
| CN201013269Y (en) * | 2007-03-13 | 2008-01-30 | 陕西省核工业地质局工程机械研究所 | Lever-type hydraulic chuck |
| CN201258701Y (en) * | 2008-09-08 | 2009-06-17 | 浙江杭钻机械制造股份有限公司 | Combined hydraulic clamping chuck |
Non-Patent Citations (1)
| Title |
|---|
| 《矿业安全与环保》 20070228 吕冰等 ZY-3500煤矿用全液压坑道钻机的研制 8-10 1-7 第34卷, 第1期 * |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434116A (en) * | 2012-01-17 | 2012-05-02 | 江苏省无锡探矿机械总厂有限公司 | Nitrogen spring type hydraulic chuck |
| CN102720449A (en) * | 2012-06-15 | 2012-10-10 | 兰桥昌 | Clamping mechanism of automatic twisting machine of spindle-type drilling machine |
| CN102900384B (en) * | 2012-10-19 | 2015-05-06 | 徐州五洋科技股份有限公司 | Normally-closed hydraulic chuck for coalmine driller |
| CN102900384A (en) * | 2012-10-19 | 2013-01-30 | 徐州五洋科技股份有限公司 | Normally-closed hydraulic chuck for coalmine driller |
| CN103410455A (en) * | 2013-08-13 | 2013-11-27 | 镇江安达煤矿专用设备有限公司 | Compensation clamping hydraulic chuck |
| CN103706943A (en) * | 2013-11-27 | 2014-04-09 | 江苏锐成机械有限公司 | Disc spring type wedge-shaped hydraulic chuck for friction welding machine |
| CN103899259A (en) * | 2014-03-13 | 2014-07-02 | 平顶山市铁福来机电设备有限公司 | Mine rubber-sleeve-free hydraulic chuck |
| CN103899259B (en) * | 2014-03-13 | 2017-01-04 | 河南铁福来装备制造股份有限公司 | A kind of mining oild chuck without packing element |
| CN105728769A (en) * | 2016-04-20 | 2016-07-06 | 车沛远 | Hydraulic quick-clamping device for bar material |
| CN107060665A (en) * | 2017-03-31 | 2017-08-18 | 淮南矿业(集团)有限责任公司 | All-hydraulic drill is semi-automatic to add chi device |
| CN107083936A (en) * | 2017-04-25 | 2017-08-22 | 中煤科工集团重庆研究院有限公司 | Automatically reset hole packer |
| CN108544278A (en) * | 2018-06-15 | 2018-09-18 | 中原内配集团股份有限公司 | A kind of multi-dot hydraulic pressure clamps, self-centering type cylindrical work fixture |
| CN108544278B (en) * | 2018-06-15 | 2023-10-03 | 中原内配集团股份有限公司 | Multi-point hydraulic clamping and self-centering cylindrical workpiece clamp |
| CN111395985A (en) * | 2020-04-10 | 2020-07-10 | 长江岩土工程总公司（武汉） | Drill rod three-jaw clamp and using method thereof |
| CN111395985B (en) * | 2020-04-10 | 2023-08-18 | 长江岩土工程有限公司 | Three-jaw drill rod clamp holder and use method thereof |
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Application publication date: 20110126 |