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Slip device and drilling machine

A technology of slips and slip seats, which is applied in the direction of drill pipe, drill pipe, drilling equipment, etc., and can solve the problem of small adjustment range of the clamping diameter.

Active Publication Date: 2017-03-15
XCMG CONSTR MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the slip device 2' in the prior art has the problem that the adjustment range of the clamping diameter is small

Method used

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  • Slip device and drilling machine
  • Slip device and drilling machine
  • Slip device and drilling machine

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0054] The following will be based on Figure 2 to Figure 19 The structure of the slip device 2 of the first embodiment of the present invention will be described in detail.

[0055] Such as figure 2 As shown, the slip device 2 of this embodiment is installed on the workbench 1 .

[0056] Such as image 3 and Figure 4 As shown, the slip device 2 includes a slip seat 21 and a slip assembly. Wherein, the slip seat 21 has a cavity 211 , and the slip assembly includes a plurality of slip units 22 disposed in the cavity 211 .

[0057] In this embodiment, preferably, the sliding surface includes a first sliding portion. The at least two fitting portions include a first fitting portion and a second fitting portion arranged radially outside of the first fitting portion. The first fitting part and the second fitting part can be slidably matched with the first sliding part respectively.

[0058] Specifically, such as Figure 10 and Figure 11 As shown, the side wall of the ca...

no. 2 example

[0091] In the second embodiment, the sliding surface includes a first sliding portion, at least two fitting portions include a first fitting portion and a second fitting portion disposed radially outside the first fitting portion, and the first fitting portion and the second fitting portion The parts can be slidably matched with the first sliding part.

[0092] Similar to the first embodiment, the side wall of the cavity of the slip seat includes a conical surface and a plurality of bar-shaped grooves arranged on the conical surface and extending along the central axis of the slip device. The first matching part is arranged on the tapered surface between each strip-shaped groove. The second matching portion is located on the bottom surface of the bar-shaped groove. The first sliding portion is disposed on the radially outer first curved surface of the slip body 221 .

[0093] Different from the first embodiment, the depth of the bar-shaped groove on the cavity of the slip se...

no. 3 example

[0098] In the third embodiment, the mating surface includes a first mating portion, at least two sliding portions include a first sliding portion and a second sliding portion disposed radially outside the first sliding portion, the first sliding portion and the second sliding portion The parts can be slidably matched with the first matching part.

[0099] In the third embodiment, the side wall of the cavity of the slip seat includes a conical surface and a plurality of bar-shaped grooves arranged on the conical surface and extending along the central axis of the slip device. The first matching part is arranged on the tapered surface between each strip-shaped groove.

[0100] The first sliding part is a first curved surface arranged radially outside the slip body, the second sliding part is a second curved surface arranged radially outside the slip body, and the second curved surface is located on both sides of the first curved surface in the circumferential direction and is l...

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PUM

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Abstract

The invention discloses a slip device and a drilling machine. The slip device comprises a slip base and a slip assembly, wherein the slip assembly comprises a slide face; the slip base comprises a matched face; the matched face comprises at least two matched parts; the slide face can form slide fitting with one of the at least two matched parts optionally; when each matched part among the at least two matched parts forms the slide fitting with the slide face, at least a part of an adjustment scope of a clamping through diameter of the slip assembly is different from an adjustment scope of the clamping through diameter formed when the other matched part is fitted with the slide face; or, the slide face comprises at least two slide parts; the matched face can form slide fitting with one of the at least two slide parts optionally; and when each slide part among the at least two slide parts forms slide fitting with the matched face, at least a part of the adjustment scope of the clamping through diameter of the slip assembly is different from the adjustment scope of the clamping through diameter formed when the other slide part is fitted with the matched face. The slip device disclosed by the invention increases the adjustment scope of the clamping through diameter.

Description

technical field [0001] The invention relates to the field of construction machinery, in particular to a slip device and a drilling rig. Background technique [0002] The slip device is the core component in the drilling process of the drilling rig. It holds and supports the drilling tools in the well and is the key to the safe drilling operation. [0003] Such as figure 1 As shown, the slip device 2' in the prior art includes a slip seat 21' and a plurality of slip units 22'. Wherein, the slip unit 22' includes a slip body 221' and a slip tooth 222'. Since the adjustment range of the clamping diameter of the slip device 2' in the prior art is small, when clamping different drilling tools, the slip body 221', or even the entire slip device 2' must be replaced, reducing the work efficiency. Therefore, the slip device 2' in the prior art has the problem that the adjustment range of the clamping diameter is small. Contents of the invention [0004] The object of the prese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B19/10
CPCE21B19/10
Inventor 洪志伟王静朱秀梅
Owner XCMG CONSTR MACHINERY