CN111922418A - Underground inner wall cutting machine - Google Patents
Underground inner wall cutting machine Download PDFInfo
- Publication number
- CN111922418A CN111922418A CN202010779782.9A CN202010779782A CN111922418A CN 111922418 A CN111922418 A CN 111922418A CN 202010779782 A CN202010779782 A CN 202010779782A CN 111922418 A CN111922418 A CN 111922418A
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- China
- Prior art keywords
- sliding
- lead screw
- screw
- cutter
- oppositely
- Prior art date
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- 238000007789 sealing Methods 0.000 claims description 12
- 230000001681 protective effect Effects 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D21/00—Machines or devices for shearing or cutting tubes
- B23D21/14—Machines or devices for shearing or cutting tubes cutting inside the tube
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turning (AREA)
Abstract
The invention relates to the technical field of pipe cutting devices, in particular to a downhole inner wall cutting machine, which comprises: the lead screw is sleeved with oppositely arranged sliding joints; the cutter rest is sleeved on the lead screw and is positioned between the two sliding joints, and a cutter is fixedly arranged on the cutter rest; the two sides of the knife rest are uniformly provided with a plurality of connecting arms, and two ends of each connecting arm are respectively hinged with the sliding joint and the knife rest; and the driving device drives the two sliding joints to move oppositely or oppositely on the lead screw. According to the underground inner wall cutting machine, the driving device drives the two sliding joints to move on the lead screw oppositely or oppositely, the tool rest is driven to move along the radial direction of the lead screw through the connecting arm in the process that the sliding joints move on the lead screw, the extending length of the cutter is further adjusted, and the cutter starts to cut after contacting the inner wall of a pipe, so that the cutting in the pipe is simpler.
Description
Technical Field
The invention relates to the technical field of pipe cutting devices, in particular to a downhole inner wall cutting machine.
Background
In the industry, the pipe can be buried underground or placed under water, needs to be cut off and can not have residue on the surface, because the outside construction degree of difficulty is big, just so can only cut off from the inner wall to outside to operating space is narrow and small in the pipe, and location and cutting torch heat dissipation all have great difficulty, also are not convenient for follow the outside observation cutting effect.
Disclosure of Invention
The invention aims to provide a downhole inner wall cutting machine which solves the technical problem that the cutting difficulty of the existing underground or underwater pipe is high.
In order to achieve the purpose, the invention provides the following technical scheme:
a downhole inner wall cutter comprising: the lead screw is sleeved with oppositely arranged sliding joints; the cutter rest is sleeved on the lead screw and is positioned between the two sliding joints, and a cutter is fixedly arranged on the cutter rest; the two sides of the knife rest are uniformly provided with a plurality of connecting arms, and two ends of each connecting arm are respectively hinged with the sliding joint and the knife rest; and the driving device drives the two sliding joints to move oppositely or oppositely on the lead screw.
Preferably, the driving device is disposed on the opposite side of the two sliding joints, and the driving device on the opposite side of the two sliding joints has the same structure, and the structure of the driving device on the side of one of the sliding joints includes:
the screw nut is arranged on the screw in a threaded manner, the screw nut is fixedly connected with the sliding joint, and the thread directions of the two screw nuts on the screw are opposite;
the bearing block is sleeved outside the lead screw, a sliding groove is formed in the bearing block, a limiting block is fixedly arranged on the lead screw nut, and the limiting block can be arranged in the sliding groove in a sliding mode;
the motor is fixedly arranged in any one of the bearing seats, and a rotating shaft of the motor is fixedly connected with the lead screw.
Preferably, the motor is fixedly connected with the lead screw through a coupler.
Preferably, a base is fixedly arranged in the bearing seat corresponding to the motor through a screw, and the motor is installed on the base.
Preferably, the bearing frame overcoat is equipped with the pillar, the pillar with set up the slip sealing ring between the screw nut, the slip sealing ring can slide in the pillar, the slip sealing ring with slip joint fixed connection, the slip sealing ring passes through fastening screw ring fixed connection with the screw nut, it is locking to set up the jump ring between slip sealing ring and the screw nut, the slip sealing ring with all pass through the key-type connection between slip joint and the screw nut.
Preferably, one of the bearing seats is fixedly connected with the rotary short joint.
Preferably, the connecting arm comprises a main arm and an auxiliary arm, and the main arm and the auxiliary arm are arranged at intervals.
According to the underground inner wall cutting machine, the driving device drives the two sliding joints to move on the lead screw oppositely or oppositely, the tool rest is driven to move along the radial direction of the lead screw through the connecting arm in the process that the sliding joints move on the lead screw, the extending length of the cutter is further adjusted, and the cutter starts to cut after contacting the inner wall of a pipe, so that the cutting in the pipe is simpler.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the construction of the tool holder of the present invention;
fig. 3 is a schematic view of the present invention with the blade holder open.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
According to fig. 1, 2 and 3, a downhole inner wall cutter comprises: the lead screw comprises a lead screw 1, wherein sliding joints 2 which are oppositely arranged are sleeved on the lead screw 1; the cutter rest 3 is sleeved on the screw rod 1, the cutter rest 3 is positioned between the two sliding joints 2, and a cutter 4 is fixedly arranged on the cutter rest 3; the connecting arm 5 is characterized in that a plurality of connecting arms 5 are uniformly arranged on two sides of the tool rest 3, two ends of each connecting arm 5 are respectively hinged with the sliding joint 2 and the tool rest 3, each connecting arm 5 comprises a main arm 51 and an auxiliary arm 52, and the main arm 51 and the auxiliary arms 52 are arranged at intervals; and the driving device drives the two sliding joints 2 to move oppositely or oppositely on the lead screw 1.
In the embodiment, the two sliding joints 2 are driven by the driving device to move oppositely or oppositely on the screw rod 1, the tool rest 3 is driven by the connecting arm 5 to move along the radial direction of the screw rod 1 in the process that the sliding joints 2 move on the screw rod 1, the extending length of the cutter 4 is further adjusted, and the cutter 4 starts to cut after contacting the inner wall of the pipe, so that the cutting in the pipe is simpler.
Example 2
According to fig. 1, 2 and 3, the driving device is arranged on the opposite side of the two sliding joints 2, and the driving device on the opposite side of the two sliding joints 2 has the same structure, and the structure of the driving device on the side of one of the sliding joints 2 includes:
the screw nut 6 is installed on the screw 1 in a threaded manner, the screw nut 6 is fixedly connected with the sliding joint 2, and the thread directions of the two corresponding screw nuts 6 on the screw 1 are opposite;
the cutting machine comprises bearing blocks 7, a screw 1 and a screw nut 6, wherein the bearing blocks 7 are sleeved with the outside of the screw, sliding grooves 8 are formed in the bearing blocks 7, a limiting block 9 is fixedly arranged on the screw nut 6, the limiting block 9 can be arranged in the sliding grooves 8 in a sliding mode, one of the bearing blocks 7 is fixedly connected with a rotary short section 10, the cutting machine is driven to rotate through the rotary short section 10, and in the embodiment, the rotary short section 10 can be a rotary motor;
the motor 11 is fixedly arranged in any one of the bearing seats 7, and a rotating shaft of the motor 11 is fixedly connected with the lead screw 1; the motor 11 is fixedly connected with the lead screw 1 through a coupler 12; a base 13 is fixedly arranged in the bearing seat 7 corresponding to the motor 11 through a screw, and the motor 11 is installed on the base 13.
In the above embodiment, firstly, the motor 11 drives the screw rod 1 to rotate, in the rotating process of the screw rod 1, the screw nut 6 rotates on the screw rod 1, because the screw nut 6 horizontally moves in the sliding groove 8 on the bearing seat 7 through the limiting block 9, and the screw directions of the screw rod 1 corresponding to the two screw nuts 6 are opposite, in the rotating process of the screw rod 1, the two screw nuts 6 move relatively or back to back on the screw rod 1, finally, the screw nut 6 pushes the tool rest 3 to radially move along the screw rod 1 through the main arm 51 and the auxiliary arm 52, so as to adjust the extending length of the cutter 4, after the cutter 4 contacts the inner wall of the pipe, the rotary short section 10 drives the cutting machine to rotate, so that the cutter 4 cuts the inner wall of the pipe, and the operation is more.
Example 3
According to fig. 1, 2, 3, the 7 overcoat of bearing frame is equipped with pillar 14, pillar 14 with set up sliding seal ring 15 between the screw nut 6, sliding seal ring 15 can slide in the pillar 14, sliding seal ring 15 with 2 fixed connection of sliding joint, sliding seal ring 15 passes through fastening screw ring 16 fixed connection with screw nut 6, it is locking to set up jump ring 17 between sliding seal ring 15 and the screw nut 6, sliding seal ring 15 with all pass through the key-type connection between sliding joint 2 and the screw nut 6.
In the above embodiment, the protective pipe 14 is sleeved outside the bearing seat 7, and the protective pipe 14 protects the internal cutting machine, so that the cutting machine is prevented from being failed due to the fact that sundries enter the internal cutting machine; in the process of the motion of screw nut 6, inside debris got into was prevented in the slidable seal cooperation of sliding seal ring 15 and pillar 14, sliding seal ring 15 with 2 fixed connection of sliding joint, sliding seal ring 15 and screw nut 6 pass through fastening screw ring 16 fixed connection, it is locking to set up jump ring 17 between sliding seal ring 15 and the screw nut 6, sliding seal ring 15 with all through the key-type connection between sliding joint 2 and the screw nut 6, guarantee that sliding seal ring 15 and sliding joint 2 do not have relative rotation, make sliding seal ring 15, screw nut 6, sliding joint 2 wholly carry out horizontal migration, sliding seal ring 15 plays the effect of connecting and protecting.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A downhole inner wall cutter, comprising:
the lead screw is sleeved with oppositely arranged sliding joints;
the cutter rest is sleeved on the lead screw and is positioned between the two sliding joints, and a cutter is fixedly arranged on the cutter rest;
the two sides of the knife rest are uniformly provided with a plurality of connecting arms, and two ends of each connecting arm are respectively hinged with the sliding joint and the knife rest;
and the driving device drives the two sliding joints to move oppositely or oppositely on the lead screw.
2. The downhole inner wall cutter according to claim 1, wherein the driving device is disposed on the opposite sides of the two sliding joints, and the driving devices on the opposite sides of the two sliding joints have the same structure, and the structure of the driving device on the side of one of the sliding joints comprises:
the screw nut is arranged on the screw in a threaded manner, the screw nut is fixedly connected with the sliding joint, and the thread directions of the two screw nuts on the screw are opposite;
the bearing block is sleeved outside the lead screw, a sliding groove is formed in the bearing block, a limiting block is fixedly arranged on the lead screw nut, and the limiting block can be arranged in the sliding groove in a sliding mode;
the motor is fixedly arranged in any one of the bearing seats, and a rotating shaft of the motor is fixedly connected with the lead screw.
3. The downhole inner wall cutter according to claim 2, wherein the motor is fixedly connected with the lead screw through a coupling.
4. A downhole inner wall cutting machine according to claim 2, wherein a base is fixedly arranged in the bearing seat corresponding to the motor by a screw, and the motor is mounted on the base.
5. The underground inner wall cutting machine according to claim 2, wherein a protective pipe is sleeved outside the bearing seat, a sliding sealing ring is arranged between the protective pipe and the screw nut, the sliding sealing ring can slide in the protective pipe, the sliding sealing ring is fixedly connected with the sliding joint, the sliding sealing ring is fixedly connected with the screw nut through a fastening threaded ring, a clamp spring is arranged between the sliding sealing ring and the screw nut for preventing looseness, and the sliding sealing ring is connected with the sliding joint and the screw nut through keys.
6. A downhole inner wall cutter according to claim 2, wherein one of the bearing housings is fixedly connected to the rotary sub.
7. A downhole inner wall cutter according to claim 1, wherein the connecting arm comprises a primary arm and a secondary arm, the primary arm and the secondary arm being spaced apart.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010779782.9A CN111922418A (en) | 2020-08-05 | 2020-08-05 | Underground inner wall cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010779782.9A CN111922418A (en) | 2020-08-05 | 2020-08-05 | Underground inner wall cutting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111922418A true CN111922418A (en) | 2020-11-13 |
Family
ID=73306767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010779782.9A Pending CN111922418A (en) | 2020-08-05 | 2020-08-05 | Underground inner wall cutting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111922418A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2814105A (en) * | 1957-03-18 | 1957-11-26 | Robert K Smith | Inside pipe and tube cutter |
| EP2786847A1 (en) * | 2013-03-27 | 2014-10-08 | Wessendorf Systembeschichtungen GmbH | Device for trimming façade anchors |
| CN107052435A (en) * | 2017-05-19 | 2017-08-18 | 中国三冶集团有限公司 | Large-diameter pipeline cutting machine in Pipe installing |
| GB201901894D0 (en) * | 2019-02-11 | 2019-04-03 | Mcallister Lawrence Lawson | Downhole internal pipe cutting method and apparatus |
| CN110052657A (en) * | 2019-05-06 | 2019-07-26 | 上海誉帆环境科技有限公司 | A kind of pipeline inside diced system |
-
2020
- 2020-08-05 CN CN202010779782.9A patent/CN111922418A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2814105A (en) * | 1957-03-18 | 1957-11-26 | Robert K Smith | Inside pipe and tube cutter |
| EP2786847A1 (en) * | 2013-03-27 | 2014-10-08 | Wessendorf Systembeschichtungen GmbH | Device for trimming façade anchors |
| CN107052435A (en) * | 2017-05-19 | 2017-08-18 | 中国三冶集团有限公司 | Large-diameter pipeline cutting machine in Pipe installing |
| GB201901894D0 (en) * | 2019-02-11 | 2019-04-03 | Mcallister Lawrence Lawson | Downhole internal pipe cutting method and apparatus |
| CN110052657A (en) * | 2019-05-06 | 2019-07-26 | 上海誉帆环境科技有限公司 | A kind of pipeline inside diced system |
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| PB01 | Publication | ||
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Application publication date: 20201113 |