CN112554815A - Clamp and clamp holder - Google Patents
Clamp and clamp holder Download PDFInfo
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- CN112554815A CN112554815A CN202011429123.9A CN202011429123A CN112554815A CN 112554815 A CN112554815 A CN 112554815A CN 202011429123 A CN202011429123 A CN 202011429123A CN 112554815 A CN112554815 A CN 112554815A
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- clamp
- clamping
- axis direction
- drill rod
- floating
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B19/16—Connecting or disconnecting pipe couplings or joints
- E21B19/161—Connecting or disconnecting pipe couplings or joints using a wrench or a spinner adapted to engage a circular section of pipe
- E21B19/163—Connecting or disconnecting pipe couplings or joints using a wrench or a spinner adapted to engage a circular section of pipe piston-cylinder actuated
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- Life Sciences & Earth Sciences (AREA)
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- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
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- Environmental & Geological Engineering (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a clamp which comprises two clamping components arranged oppositely along the X-axis direction, wherein the two clamping components can be mutually matched to clamp an object to be clamped in the X-axis direction; floating mechanisms are arranged on two sides of the clamping assembly; the two floating mechanisms can be matched with each other, the position of the clamping assembly in the Y-axis direction is adjusted according to the reaction force of the eccentric clamping object born by the clamping assembly, and the clamping assembly is limited in the X-axis direction and the Z-axis direction. The invention also provides a clamp holder, wherein the clamp holder is provided with two clamps which are used for clamping two different clamped objects and can realize the disassembly and the assembly of the two clamped objects through rotation. The invention can realize the self-adaptive drill rod centering of the clamping device, solve the problem of misalignment between the center of the drill rod and the center of the clamping device caused by assembly error or abrasion of a power head running guide rail, and prevent the clamping device from generating additional bending moment on the drill rod, thereby reducing the damage to a power head bearing and a drill bit tail.
Description
Technical Field
The invention relates to a clamp and a clamp holder, belonging to the technical field of drilling machinery.
Background
The clamp holder is mainly used for being matched with the power head to disassemble and assemble the drill rod, the center of the clamp holder is required to be coaxial with the center of the drill rod after the drill is assembled and in the construction process, however, in practical application, due to machining assembly errors and abrasion of a power head running track, the phenomenon that the clamp holder is not aligned with the center of the drill rod often occurs, in the process of disassembling the drill rod, the drill rod can be subjected to radial force and additional bending moment generated by eccentric clamping of the clamp holder, fracture of a drill bit tail of the power head and damage of a bearing at the output end of the power head can be accelerated through long-term use, the operation.
In the prior art, in order to solve the above problems, patent documents with patent application numbers CN201220033283.6 and published as 2012, 01, 16 disclose a horizontal directional drilling machine holder force-applying device, which utilizes a clamping cylinder, a pressing plate, a holding block, a baffle plate, a slip and the like to connect one end of the clamping cylinder with the holding block, and connect the clamping cylinder and the holding block together through the pressing plate, a bolt and a gasket, so as to realize automatic centering of the holder when clamping a drill rod, however, the patent has the defects that: the head of the piston rod can only rotate through the clearance between the retaining block and the structural member, when the clearance is too small, the retaining block is in a basically non-rotatable state, and the adjustment amount cannot meet the actual requirement; when the clearance is too large, the piston rod can be influenced by radial force in the working process, so that the reliability of the oil cylinder is reduced.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a clamp and a clamp holder, which can be self-adaptively centered with an object to be clamped.
In order to solve the technical problems, the invention is realized by adopting the following technical scheme:
on one hand, the invention provides a clamp which comprises two clamping components arranged oppositely along the X-axis direction, wherein the two clamping components can be mutually matched to clamp an object to be clamped in the X-axis direction; floating mechanisms are arranged on two sides of the clamping assembly; the two floating mechanisms can be matched with each other, the clamping position of the clamping assembly in the Y-axis direction is adjusted according to the reaction force of the eccentric clamping object born by the clamping assembly, and the clamping assembly is limited in the X-axis direction and the Z-axis direction.
Preferably, the clamping assembly comprises a piston cylinder, a piston rod and a retaining block, wherein the piston head of the piston rod can reciprocate in the piston cylinder, and one end of the piston rod, extending out of the piston cylinder, is hinged with the retaining block.
Preferably, the holding block is provided with tiger teeth which are in direct contact with the clamped object, and the tiger teeth are fixed on the holding block through the pressing plate.
Preferably, the floating mechanism comprises a floating box body, a hydraulic elastic support and a shaft sleeve, the floating box body is hinged to the piston cylinder, guide shafts are arranged on two sides of the floating box body, the guide shafts extend into the shaft sleeve to form a chamber for containing the hydraulic elastic support, and the guide shafts can move in the shaft sleeve along the Y-axis direction under the driving of the hydraulic elastic support.
Preferably, the hydraulic oil passages of the hydraulic elastic supports on the diagonal of the two floating mechanisms are communicated through a pipeline.
Preferably, the sleeve is circumferentially provided with an end cap for guiding the chamber.
Preferably, the clamp structure further comprises a clamp structure body, and the two clamping assemblies are connected through the clamp structure body.
On the other hand, the invention also provides a clamp holder which comprises two clamps, wherein the two clamps are used for clamping two different clamping objects and can realize the disassembly and the assembly of the two clamping objects through rotation.
Preferably, at least one of the clamps of the clamp holder is provided with a shackle mechanism, and the shackle mechanism can drive the corresponding clamp to rotate so as to realize the disassembly of two clamped objects.
Preferably, the shackle mechanism includes the shackle base and locates the shackle hydro-cylinder on the shackle base, the shackle hydro-cylinder can drive the anchor clamps rotation that link to each other rather than.
Compared with the prior art, the invention has the following beneficial effects:
1. the clamp provided by the invention comprises two clamping components which are oppositely arranged along the X-axis direction, wherein the two clamping components can be matched with each other to clamp an object to be clamped in the X-axis direction, floating mechanisms are arranged on two sides of each clamping component and can be matched with each other, the position of each clamping component in the Y-axis direction is adjusted according to the reaction force of an eccentric clamped object borne by each clamping component, and the clamping components are limited in the X-axis direction and the Z-axis direction;
2. the clamp holder provided by the invention comprises two clamps, wherein the two clamps are used for clamping two different clamped objects and can be used for dismounting the two clamped objects through rotation, the clamps and the clamped objects are automatically centered, the radial force and the additional bending moment generated by eccentric clamping can be reduced or avoided, the clamp holder is applied to dismounting and mounting of the power head and the drill rod, the damage risk of the power head or the drill rod caused by the radial force or the additional bending moment is reduced, the operation and maintenance cost is reduced, and the quick dismounting and mounting of the power head and the drill rod can be realized;
3. according to the clamp holder provided by the invention, the holding block is provided with the tiger teeth, the upper end and the lower end of the tiger teeth are also provided with the pressing plates, the upper end and the lower end of the tiger teeth are fixedly connected to the front end of the holding block through the bolts by the pressing plates, the clamp holder can self-adaptively center a clamped object, and the tiger teeth are prevented from being broken due to eccentric clamping of the clamp, so that the service life of the tiger teeth is prolonged, and the working efficiency of a;
4. according to the clamp holder, the drill rod is eccentrically adjusted through the gap between the floating mechanism and the clamp structure body, the adjustable range is large, the center of the block and the center of the piston rod are always in the same straight line, and radial force cannot be generated.
Drawings
FIG. 1 is a schematic structural diagram of a clamp according to an embodiment of the present invention;
FIG. 2 is a schematic view of a clamp assembly of FIG. 1;
FIG. 3 is an enlarged view of a portion B of FIG. 1;
FIG. 4 is a schematic structural diagram of a holder according to the present embodiment;
in the figure: 1. a clamping assembly; 2. a piston cylinder; 3. a piston rod; 4. a holding block; 5. a floating box body; 6. a hydraulic elastic support; 7. a shaft sleeve; 8. a guide shaft; 9. a chamber; 10. an end cap; 11. a clamp structure; 12. a shackle base; 13. a shackle cylinder; 14. tiger teeth; 15. and (7) pressing a plate.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The first embodiment is as follows:
the invention provides a clamp, as shown in fig. 1, 2 and 3, which comprises two clamping assemblies 1, wherein the clamping assemblies 1 are oppositely arranged along the X-axis direction, and particularly, the two clamping assemblies 1 can be mutually matched to realize the clamping of a drill rod to be clamped in the X-axis direction. The two sides of the clamping assembly 1 are provided with floating mechanisms, the floating mechanisms on the two sides can be matched with each other, the clamping position of the clamping assembly 1 in the Y-axis direction is adjusted according to the reaction force of an eccentric clamping object borne by the clamping assembly 1, and the clamping assembly 1 is limited in the X-axis direction and the Z-axis direction.
Specifically, the clamping assembly 1 comprises a piston cylinder 2, a piston rod 3 and a retaining block 4, more specifically, the piston head of the piston rod 3 can reciprocate in the piston cylinder 2, and one end of the piston rod 3 extending out of the piston cylinder 2 is hinged with the retaining block 4. The floating mechanism comprises a floating box body 5, a hydraulic elastic support 6 and a shaft sleeve 7, wherein the floating box body 5 is hinged to the piston cylinder 2, guide shafts 8 are arranged on two sides of the floating box body 5, the guide shafts 8 extend into the shaft sleeve 7 to form a chamber 9 for containing the hydraulic elastic support 6, the guide shafts 8 can move in the shaft sleeve 7 along the Y-axis direction under the driving of the hydraulic elastic support 6, end covers 10 for guiding the chamber 9 are arranged on the circumference of the shaft sleeve 7, hydraulic oil paths of the hydraulic elastic support 6 in the diagonal directions of the two clamping assemblies 1 are communicated through pipelines, namely, an A1 is in butt joint with the same pipeline of an A4, and an A2 is in butt joint with the same pipeline of an A3.
In order to improve the working efficiency of the drilling machine, the holding block 4 is provided with tiger teeth 14 which are in direct contact with a clamped object, preferably, the tiger teeth 14 are fixed on the holding block 4 through upper and lower pressing plates 15, and more advantageously, the upper and lower ends of the tiger teeth 14 are fixedly connected to the front end of the holding block 4 through the pressing plates 15 through bolts, so that the tiger teeth 14 can be stably arranged on the holding block 4. It should be understood that the clamp provided by the invention can self-adaptively center a clamped object, and prevent the tiger teeth 14 from being cracked due to eccentric clamping of the clamp, so that the service life of the tiger teeth 14 is prolonged, and the working efficiency of the drilling machine is improved.
Preferably, the clamp further comprises a clamp structure body 11, the two clamping assemblies 1 are connected through the clamp structure body 11, the drill rod eccentric adjustment is carried out through the gap between the floating box body 5 and the clamp structure body 11, the adjustable range is large, the center of the block 4 and the center of the piston rod 3 are always in the same straight line, and no radial force is generated on the piston rod 3. Specifically, the jig structure body 11 has a minor arc structure, and the upper and lower jig structure bodies 11 are uniform in size. It should be understood that even if the upper and lower jig structures 11 are not of the same size, any form of modification is within the scope of the present invention as long as it is essentially the same as the present invention.
Example two:
the invention also provides a clamp holder, as shown in fig. 4, which comprises two clamps in the first embodiment, it should be noted that the two clamps are used for clamping two different clamped objects, and the two clamped objects can be disassembled and assembled by rotating the clamps, so as to realize the quick disassembling process. Specifically, the upper portion anchor clamps of holder are provided with the mechanism of breaking out, the mechanism of breaking out can drive the rotatory disassembling in order to realize two cramping thing of upper portion anchor clamps, wherein, the mechanism of breaking out is including the base 12 of breaking out and locate the hydro-cylinder 13 of breaking out on the base 12 of breaking out, the hydro-cylinder 13 of breaking out can drive rather than the anchor clamps that link to each other rotatory, that is to say, the holder can cooperate the rig unit head to carry out the dismouting of drilling rod. Meanwhile, the clamp holder can solve the problem that the center of the drill rod is not aligned with the center of the clamp, and the clamp holder is essentially adaptive to drill rod alignment, and can reduce or avoid radial force and additional bending moment generated by eccentric clamping, so that accelerated damage to a drill bit shank and a drill bit bearing of a power head connected with the drill rod due to additional load is avoided, further damage to a drilling machine and a drilling tool is reduced, and the operation and maintenance cost is reduced. It should be noted that, based on the teaching of the present invention, the person skilled in the art can set the lower clamp as the shackle mechanism, but the present invention is not limited thereto. For example, the upper and lower clamps can be provided with the shackle mechanisms, that is, the upper and lower clamps can be in a shackle state, or three clamps can be arranged on the same holder according to actual needs, and the shackle mechanism is arranged on at least one of the clamps, so as to meet the actual needs.
When a drill rod needs to be clamped, the piston cylinders 2 of the upper clamp and the lower clamp drive the holding blocks 4 to clamp towards the center of the clamp through the piston rods 3, accordingly, the tiger teeth 14 also clamp towards the X-axis direction towards the center of the clamp, when the center of the drill rod deviates from the center of the clamp, when the center of the drill rod is in the positive direction of the Y-axis, the left end and the right end of the upper clamp and the lower clamp are on the same holding block 4, the tiger teeth 14 in the positive direction of the Y-axis contact with the drill rod first, the floating box body 5 moves towards the positive direction of the Y-axis due to the reaction force of the drill rod on the holding blocks 4 at the left end and the right end of the clamp, the A1 is in butt joint with the same pipeline of A4, the A2 is in butt joint with the same pipeline of A3, when the hydraulic elastic bearings A3 and A4 between the clamp structure body 11 and the floating box body 5 are compressed, oil, In A1, the A2 and A1 hydraulic elastic supports are extended, so that the clamp is overlapped with the center of the drill rod, and the clamp automatically centers the center of the drill rod. When the drill rod is deviated along the Y-axis negative direction, correspondingly, when the hydraulic elastic supports A1 and A2 between the clamp structure body 11 and the floating box body 5 are compressed, oil in the hydraulic supporting oil of A1 and A2 is extruded to flow into the hydraulic elastic supports A4 and A3 in the diagonal direction, so that the hydraulic elastic supports A4 and A3 are extended, the clamp is overlapped with the center of the drill rod, and the clamp automatically centers the center of the drill rod. The clamp holder can self-adapt to drill rod centering, and the problem that the center of the drill rod is not centered with the center of the clamp holder due to assembly errors or abrasion of a power head running guide rail is solved.
When the drill rod needs to be dismounted, the shackle oil cylinder 13 pushes the shackle mechanism to rotate along the shackle base 12, at the moment, the hydraulic elastic supports 6A 1 and A4 bear pressure simultaneously, the compression amount of the two hydraulic elastic supports 6 is not changed, the floating box body 5 does not displace, the hydraulic oil of the two hydraulic elastic supports 6 on the diagonal line does not flow, namely, the pipelines A1 and A4 are kept in a non-flow state, and the pipelines A2 and A3 are kept in a non-flow state. It should be understood that when the hydraulically elastic supports 6 of a1, a2, A3 and a4 are in a rigid connection state, the shackle clamps are not affected by the hydraulically elastic supports 6, and can be normally shackle to separate the two connected clamps.
The working principle of the clamp holder is as follows:
1. and (3) a drill rod clamping process: when the piston cylinders 2 of the upper clamp and the lower clamp drive the holding blocks 4 to clamp towards the center of the clamp through the piston rods 3, the tiger teeth 14 also clamp towards the X-axis direction, when the center of a drill rod deviates from the center of the clamp, when the center of the drill rod is in the positive direction of the Y-axis, the left end and the right end of the upper clamp and the lower clamp are on the same holding block 4, the tiger teeth 14 in the positive direction of the Y-axis first contact with the drill rod, the floating box body 5 moves towards the positive direction of the Y-axis due to the reaction force of the drill rod on the holding blocks 4 at the left end and the right end of the clamp, the hydraulic elastic bearings 6 in the diagonal direction are butted through the same pipeline, namely the A1 is butted with the A4, the A2 is butted with the same pipeline of the A3, when the hydraulic elastic bearings A3 and A4 between the clamp structure body 11 and the floating box body 5 are compressed, the oil in the hydraulic elastic bearings, The A1 hydroelastic support 6 is extended, so that the clamp is coincided with the center of the drill rod, and the clamp can automatically center the center of the drill rod. If the drill rod is deviated along the Y-axis negative direction, the principle is the same.
2. And (3) a drill rod shackle process: the shackle oil cylinder 13 pushes the shackle mechanism to rotate along the shackle base 12, at the moment, the hydraulic elastic supports 6A 1 and A4 bear pressure simultaneously, the compression amount of the two hydraulic elastic supports 6 is not changed, the floating box body 5 does not displace, hydraulic oil of the two hydraulic elastic supports 6 on the diagonal line does not flow, namely, a pipeline A1 and a pipeline A4 are kept in a non-flowing state, and a pipeline A2 and a pipeline A3 are kept in a non-flowing state. It should be understood that when the hydraulically elastic supports 6 of a1, a2, A3 and a4 are in a rigid connection state, the shackle clamps are not affected by the hydraulically elastic supports 6, and can be normally shackle to separate the two connected clamps.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The clamp is characterized by comprising two clamping components which are oppositely arranged along the X-axis direction, wherein the two clamping components can be mutually matched to clamp an object to be clamped in the X-axis direction;
floating mechanisms are arranged on two sides of the clamping assembly;
the two floating mechanisms can be matched with each other, the clamping position of the clamping assembly in the Y-axis direction is adjusted according to the reaction force of the eccentric clamping object born by the clamping assembly, and the clamping assembly is limited in the X-axis direction and the Z-axis direction.
2. The clamp of claim 1, wherein the clamping assembly includes a piston cylinder, a piston rod, and a retaining block, the piston head of the piston rod being reciprocally movable in the piston cylinder, the end of the piston rod extending out of the piston cylinder being hingedly connected to the retaining block.
3. The clamp of claim 2, wherein the holding block is provided with a tiger's teeth directly contacting with an object to be clamped, and the tiger's teeth are fixed on the holding block by a pressing plate.
4. The clamp according to claim 2, wherein the floating mechanism comprises a floating box body, a hydraulic elastic support and a shaft sleeve, the floating box body is hinged with the piston cylinder, guide shafts are arranged on two sides of the floating box body and extend into the shaft sleeve to form a chamber for containing the hydraulic elastic support, and the guide shafts can move in the shaft sleeve along the Y-axis direction under the driving of the hydraulic elastic support.
5. A clamp according to claim 4, wherein the hydraulic oil passages of the hydraulic elastic supports on the diagonal of the two floating mechanisms are communicated through a pipeline.
6. A clamp according to claim 4, wherein the sleeve is provided circumferentially with an end cap for guiding the chamber.
7. The clamp of claim 2, further comprising a clamp structure, the two clamping assemblies being connected by the clamp structure.
8. A holder, comprising the clamp of any one of claims 1 to 7, wherein two clamps are provided for holding two different objects to be held, and wherein the two objects to be held can be attached and detached by rotation.
9. A holder according to claim 8 wherein at least one of the jaws is provided with a break-out mechanism capable of driving the respective jaw in rotation to effect disassembly of the two clamped articles.
10. The clamp of claim 9, wherein the break-out mechanism includes a break-out base and a break-out cylinder disposed on the break-out base, the break-out cylinder capable of driving rotation of a clamp connected thereto.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011429123.9A CN112554815B (en) | 2020-12-09 | 2020-12-09 | Clamp and clamp holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011429123.9A CN112554815B (en) | 2020-12-09 | 2020-12-09 | Clamp and clamp holder |
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| Publication Number | Publication Date |
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| CN112554815A true CN112554815A (en) | 2021-03-26 |
| CN112554815B CN112554815B (en) | 2022-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011429123.9A Active CN112554815B (en) | 2020-12-09 | 2020-12-09 | Clamp and clamp holder |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113560502A (en) * | 2021-07-29 | 2021-10-29 | 湖南全宇工业设备有限公司 | Sand core clamp and core combining system |
| CN113579167A (en) * | 2021-07-29 | 2021-11-02 | 亚新科国际铸造（山西）有限公司 | Sand core combination method based on laser scanning |
| CN113914794A (en) * | 2021-12-15 | 2022-01-11 | 智慧猫(东营)智能科技有限公司 | Automatic screwing-on and unscrewing device for oil pumping rod for oil field |
| CN114320174A (en) * | 2021-12-30 | 2022-04-12 | 山东祺龙海洋石油钢管股份有限公司 | Coupling-free welding-free riser pipe |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6116118A (en) * | 1998-07-15 | 2000-09-12 | Wesch, Jr.; William E. | Gripping apparatus for power tongs and backup tools |
| 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 |
| CN202451086U (en) * | 2012-01-16 | 2012-09-26 | 徐州徐工基础工程机械有限公司 | Force application device for clamp holder |
| CN204002648U (en) * | 2014-08-18 | 2014-12-10 | 四川宏华石油设备有限公司 | A kind of Novel clamp clencher |
| CN206290225U (en) * | 2016-11-08 | 2017-06-30 | 徐工集团工程机械有限公司 | A kind of multifunctional drill clamper |
| CN107420051A (en) * | 2017-05-08 | 2017-12-01 | 中煤科工集团重庆研究院有限公司 | Automatic floating centering hydraulic gripper |
| CN107503695A (en) * | 2017-10-18 | 2017-12-22 | 徐工集团工程机械有限公司 | A kind of drill rod grip device of clamper and multifunctional drill |
| CN109577884A (en) * | 2018-12-20 | 2019-04-05 | 江苏徐工工程机械研究院有限公司 | A kind of maintainance block unloads rod structure and the deep drilling rig using the structure |
| CN110469297A (en) * | 2019-09-09 | 2019-11-19 | 中煤科工集团西安研究院有限公司 | The complete hole equipment of coal mine gas extraction directional drilling long range screen casing and method |
-
2020
- 2020-12-09 CN CN202011429123.9A patent/CN112554815B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6116118A (en) * | 1998-07-15 | 2000-09-12 | Wesch, Jr.; William E. | Gripping apparatus for power tongs and backup tools |
| 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 |
| CN202451086U (en) * | 2012-01-16 | 2012-09-26 | 徐州徐工基础工程机械有限公司 | Force application device for clamp holder |
| CN204002648U (en) * | 2014-08-18 | 2014-12-10 | 四川宏华石油设备有限公司 | A kind of Novel clamp clencher |
| CN206290225U (en) * | 2016-11-08 | 2017-06-30 | 徐工集团工程机械有限公司 | A kind of multifunctional drill clamper |
| CN107420051A (en) * | 2017-05-08 | 2017-12-01 | 中煤科工集团重庆研究院有限公司 | Automatic floating centering hydraulic gripper |
| CN107503695A (en) * | 2017-10-18 | 2017-12-22 | 徐工集团工程机械有限公司 | A kind of drill rod grip device of clamper and multifunctional drill |
| CN109577884A (en) * | 2018-12-20 | 2019-04-05 | 江苏徐工工程机械研究院有限公司 | A kind of maintainance block unloads rod structure and the deep drilling rig using the structure |
| CN110469297A (en) * | 2019-09-09 | 2019-11-19 | 中煤科工集团西安研究院有限公司 | The complete hole equipment of coal mine gas extraction directional drilling long range screen casing and method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113560502A (en) * | 2021-07-29 | 2021-10-29 | 湖南全宇工业设备有限公司 | Sand core clamp and core combining system |
| CN113579167A (en) * | 2021-07-29 | 2021-11-02 | 亚新科国际铸造（山西）有限公司 | Sand core combination method based on laser scanning |
| CN113560502B (en) * | 2021-07-29 | 2024-01-02 | 湖南全宇工业设备有限公司 | Sand core fixture and core closing system |
| CN113579167B (en) * | 2021-07-29 | 2024-01-23 | 亚新科国际铸造（山西）有限公司 | Sand core closing method based on laser scanning |
| CN113914794A (en) * | 2021-12-15 | 2022-01-11 | 智慧猫(东营)智能科技有限公司 | Automatic screwing-on and unscrewing device for oil pumping rod for oil field |
| CN114320174A (en) * | 2021-12-30 | 2022-04-12 | 山东祺龙海洋石油钢管股份有限公司 | Coupling-free welding-free riser pipe |
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| CN112554815B (en) | 2022-06-07 |
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