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Downhole inner wall cutting machine

A cutting machine and sliding joint technology, applied in shearing device, pipe shearing device, shearing machine equipment and other directions, can solve the problem of difficult cutting, and achieve the effect of simple cutting in the pipe

Pending Publication Date: 2020-11-13
西安凯特维尔能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an underground inner wall cutting machine to solve the technical problem that the existing underground or underwater pipes are difficult to cut

Method used

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  • Downhole inner wall cutting machine
  • Downhole inner wall cutting machine
  • Downhole inner wall cutting machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] according to figure 1 , 2 As shown in , 3, a kind of downhole inner wall cutting machine comprises: lead screw 1, and described lead screw 1 is provided with the slide joint 2 that is arranged relatively; The frame 3 is located between the two sliding joints 2, and the cutter 4 is fixedly arranged on the knife frame 3; the connecting arm 5, a plurality of connecting arms 5 are evenly arranged on both sides of the knife frame 3, and the two connecting arms 5 The ends are respectively hinged with the sliding joint 2 and the knife rest 3, the connecting arm 5 includes a main arm 51 and a secondary arm 52, and the main arm 51 and the secondary arm 52 are arranged at intervals; a driving device, the driving device drives two described The sliding joint 2 moves relative or opposite to each other on the screw 1 .

[0023] In the above embodiment, the drive device drives the two sliding joints 2 to move relative or opposite to each other on the screw 1, and the sliding joint ...

Embodiment 2

[0025] according to figure 1 , 2 , 3, the driving device is arranged on the opposite side of the two sliding joints 2, and the structure of the driving device on the opposite side of the two sliding joints 2 is the same, and the driving device is located on one of the sliding joints 2 Lateral structures include:

[0026] Lead screw nut 6, its thread is installed on the described lead screw 1, and described lead screw nut 6 is fixedly connected with sliding joint 2, and the screw thread direction corresponding to two lead screw nuts 6 on described lead screw 1 is opposite;

[0027] The bearing seat 7 is sleeved on the outside of the screw 1, the bearing seat 7 is provided with a sliding groove 8, the screw nut 6 is fixedly provided with a limit block 9, and the limit block 9 can be slidably arranged on the In the sliding groove 8, one of the bearing seats 7 is fixedly connected to the rotating sub-joint 10, and the rotating sub-joint 10 drives the cutting machine to rotate. I...

Embodiment 3

[0031] according to figure 1 , 2 As shown in . The sliding seal ring 15 is fixedly connected with the sliding joint 2, and the sliding seal ring 15 is fixedly connected with the lead screw nut 6 through the fastening thread ring 16. A circlip 17 is arranged between them to prevent loosening, and the sliding seal ring 15 is connected with the sliding joint 2 and the lead screw nut 6 by keys.

[0032] In the above-mentioned embodiment, by setting the protective tube 14 outside the bearing seat 7, the protective tube 14 plays a protective role on the internal cutting machine, preventing debris from entering the interior and causing the cutting machine to malfunction; during the movement of the screw nut 6, The sliding sealing ring 15 and the protective tube 14 can be slidably and sealingly matched to prevent sundries from entering the interior. The sliding sealing ring 15 is fixedly connected with the sliding joint 2, and the sliding sealing ring 15 and the lead screw nut 6 are...

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Abstract

The invention relates to the technical field of pipe cutting devices, in particular to a downhole inner wall cutting machine which comprises a lead screw, a cutter holder, a plurality of connecting arms and a driving device, wherein two oppositely-arranged sliding joints sleeve the lead screw; the cutter holder sleeves the lead screw and positioned between the sliding joints; a cutter is fixedly arranged on the cutter holder; the connecting arms are uniformly arranged on two sides of the cutter holder; both ends of the connecting arms are corresponding hinged with the sliding joints and the cutter holder; and the driving device is used for driving the sliding joints to move relative to or away from each other on the lead screw. According to the downhole inner wall cutting machine, the sliding joints are driven by the driving device to move relative to or away from each other on the lead screw, the cutter holder is driven by the connecting arms to radially move along the lead screw during the moving process of the sliding joints on the lead screw, and then the extending length of the cutter is adjusted; the cutting operation is performed when the cutter gets in touch with the innerwall of a pipe; and the in-pipe cutting becomes simpler.

Description

technical field [0001] The invention relates to the technical field of pipe cutting devices, in particular to an underground inner wall cutting machine. Background technique [0002] In the construction industry, pipes will be buried under the ground or placed under water, and they need to be cut off without leaving any residue on the surface. Due to the difficulty of external construction, they can only be cut from the inner wall outward, and the working space inside the pipe is narrow, so positioning All there is bigger difficulty in heat dissipation of cutting torch and cutting torch, also is not easy to observe cutting effect from the outside. Contents of the invention [0003] The purpose of the present invention is to provide an underground inner wall cutting machine, which solves the technical problem that the existing underground or underwater pipes are difficult to cut. [0004] In order to achieve the above object, the present invention provides the following te...

Claims

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Application Information

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IPC IPC(8): B23D21/14
CPCB23D21/14
Inventor 张勇
Owner 西安凯特维尔能源科技有限公司
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