Sleeve-pipe clamp and sleeve-pipe downing device
A gripper and casing technology, applied in casing, drill pipe, drilling equipment, etc., can solve the problems of unreliable axial position, time-consuming and labor-intensive, and achieve easy control of axial offset and low labor intensity. , the effect of reducing the time of work
Active Publication Date: 2015-05-20
HUAINAN MINING IND GRP
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- Abstract
- Description
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- Application Information
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Problems solved by technology
[0005] The invention provides a casing clamper and a casing running device to overcome the problems of using a chain hoist to fix the casing that has been set, which takes time and effort and cannot reliably ensure the axial position
Method used
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Embodiment Construction
[0049] figure 1 It is a schematic diagram of the overall structure of Embodiment 1 of the sleeve holder of the present invention Figure 1 , figure 2 It is a schematic diagram of the overall structure of Embodiment 1 of the sleeve holder of the present invention Figure II . Such as figure 1 , 2 As shown, the casing holder 10 of this embodiment may include: a coarse adjustment handle 1, a first clamping arm 2, a second clamping arm 3, a first sliding plate 4, and a second sliding plate 5; wherein, the first The first end 21 of a clamping arm 2 and the first end 31 of the second clamping arm 3 are connected with the first end 11 of the coarse adjustment handle 1, and the second end 22 of the first clamping arm 2 is connected with the first slide plate 4, the second end 32 of the second clamping arm 3 is connected to the second slide plate 5.
[0050] The maximum hole diameter of the existing holder is only Φ89mm, and the casing to be installed is usually a large-diameter...
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The invention provides a sleeve-pipe clamp and a sleeve-pipe downing device. The sleeve-pipe clamp of the invention comprises a coarse adjusting handle, a first clamping arm, a second clamping arm, a first sliding plate and a second sliding plate, wherein the first end of the first clamping arm and the first end of the second clamping arm are connected with the first end of the coarse adjusting handle, the second end of the first clamping arm is connected with the first sliding plate, and the second end of the second clamping arm is connected with the second sliding plate; and the first sliding plate and the second sliding plate are pushed to oppositely move and merge into a sleeve-pipe clamping hole by the first clamping arm and the second clamping arm in the pressing state of the coarse adjusting handle, and the hole diameter of the sleeve-pipe clamping hole is matched with the diameter of a downed sleeve pipe. The axial offset of the sleeve pipe in the hole of the sleeve-pipe clamp is easy to control, and the mechanized fixation, screwing and disassembly of the sleeve pipe are realized, so that time and labor are saved, and the safety is high.
Description
technical field [0001] The invention relates to mechanical technology, in particular to a casing holder and casing setting device. Background technique [0002] At present, the upward drilling in underground coal mines is mainly a large-diameter drilling, usually with a large depth. It is a difficult problem to install the large-diameter casing in the upward drilling safely and quickly. [0003] In the prior art, the power of the drilling rig and the chain hoist are used to suspend the casing. Since the diameter of the front gripper of the drilling rig is up to 89 mm, and the diameter of the large-diameter casing is much larger than 89 mm, the front clamp of the drilling rig must be clamped when running the casing. holder removed. When running the casing, the casing is connected with the active drill pipe of the drilling rig through the variable diameter joint, and the driving head of the drilling rig drives the active drill pipe to move forward, so that the casing enters t...
Claims
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IPC IPC(8): E21B19/10
Inventor 方有向沙甫童碧赵俊峰胡社昌程合玉石德洲高岭张世阔刘德贵
Owner HUAINAN MINING IND GRP