CN112475435A - Subway tunnel freezing pipe cutting machine and cutting method - Google Patents
Subway tunnel freezing pipe cutting machine and cutting method Download PDFInfo
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- CN112475435A CN112475435A CN202011241370.6A CN202011241370A CN112475435A CN 112475435 A CN112475435 A CN 112475435A CN 202011241370 A CN202011241370 A CN 202011241370A CN 112475435 A CN112475435 A CN 112475435A
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- 238000005520 cutting process Methods 0.000 title claims abstract description 116
- 230000008014 freezing Effects 0.000 title claims abstract description 47
- 238000007710 freezing Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000010276 construction Methods 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 238000003825 pressing Methods 0.000 claims description 14
- 210000004907 gland Anatomy 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000003754 machining Methods 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 3
- 238000004880 explosion Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- 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
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Abstract
The invention discloses a pipe cutter and a cutting method for a subway tunnel freezing pipe, and belongs to the technical field of pipeline maintenance. The body is rotatably provided with a cutting shaft and a cutter feeding shaft; a cutter feeding pipe is slidably sleeved on the cutting shaft; the upper end of the feed pipe is provided with external threads, and the feed shaft is in threaded connection with the outside of the feed pipe through a gear transmission structure; the lower end of the cutting shaft extends out of the shell, a rotating head support is fixed at the lower end of the cutting shaft, a tool rest is arranged on the rotating head support in a sliding mode along the radial direction of the rotating head support, and a tool is arranged on the tool rest; the lower end of the feed pipe is connected with a conical head; the lower side surface of the conical head is an inclined surface, the upper side surface of the knife rest is an inclined surface, and the lower side surface of the conical head is in sliding connection with the upper side surface of the knife rest. The invention has compact structure, reasonable design and convenient use, and can be pushed to the site by a trolley for use at any time; the application range is wide, the use is safe, and the explosion gun of gas cutting and the damage to the frozen wall are avoided; the construction steps are simple, convenient and quick, and the labor and material costs are greatly reduced.
Description
Technical Field
The invention relates to the technical field of pipeline maintenance, in particular to a subway tunnel freezing pipe cutting machine and a cutting method.
Background
In the later construction of the current connecting passage and the portal, the pipe head of the freezing pipe needs to be cut off, and the current pipe cutting process adopts a gas cutting technology. The method depends on the welder, and the equipment is inconvenient to use. Constructors need to wear protection labor insurance, and in the gas cutting pipe cutting process, the frozen wall is easy to damage by high temperature, the gun is easy to explode, the danger coefficient is high, and the efficiency is low.
Disclosure of Invention
In order to improve the pipe cutting efficiency and reduce the pipe cutting danger, the invention provides a pipe cutting machine and a cutting method for a subway tunnel freezing pipe,
the invention is realized by the following technical scheme: a pipe cutting machine for a freezing pipe of a subway tunnel,
the device comprises a shell with an opening at the upper end, wherein a shell pressing plate fixed integrally is arranged at the upper end of the shell;
a cutting shaft and a cutter feeding shaft are rotatably arranged in the shell;
a cutter feeding pipe is slidably sleeved on the cutting shaft; the upper end of the cutter feeding pipe is provided with an external thread, and the cutter feeding shaft is in threaded connection with the outside of the cutter feeding pipe through a gear transmission structure;
the lower end of the cutting shaft extends out of the shell, a rotating head support is fixed at the lower end of the cutting shaft, a tool rest is arranged on the rotating head support in a sliding mode along the radial direction of the rotating head support, and a tool is arranged on the tool rest;
the lower end of the feed pipe is connected with a conical head; the lower side surface of the conical head is an inclined surface, the upper side surface of the knife rest is an inclined surface, and the lower side surface of the conical head is connected with the upper side surface of the knife rest in a sliding manner.
It further comprises the following steps: the cutting epaxial end is installed on the casing through bearing I, and I outer big gland of installing of bearing, cutting axle, bearing I are through I location of circlip for the axle I, circlip for the hole I.
The upper end of the cutter feeding shaft is mounted on the shell through a bearing II, and the lower end of the cutter feeding shaft is mounted on the shell through a bearing III; and a small gland is arranged outside the bearing II, and the cutter feeding shaft and the bearing II are positioned through a shaft elastic retainer ring II and a hole elastic retainer ring II.
The cutting shaft and the cutter feeding shaft are arranged in parallel; the lower end of the cutter feeding shaft is provided with a gear II through a key; a gear I is sleeved on the outer thread section of the feed pipe, an inner thread matched with the outer thread of the feed pipe is arranged on the inner wall of the gear I, and the gear I is meshed with the gear II.
And a bearing cover is arranged in the shell, and a bearing IV is arranged between the bearing cover and the upper end of the feed pipe.
The shaft center of the conical head is provided with a through hole, and the lower end of the feed pipe extends into the upper end of the shaft center hole of the conical head; a bearing VI is arranged between the lower end of the feed pipe and the shaft center hole of the conical head; the bearing VI and the shaft center hole of the conical head are positioned by an elastic retainer ring III through a clamp spring and a hole; and a copper sleeve is arranged between the lower end of the shaft center hole of the conical head and the cutting shaft.
The lower end of the cutting shaft is fixed on the rotating head support through a gasket and a nut; the upper surface of the rotating head support is provided with uniformly distributed radial sliding chutes; the lower end of the tool rest is provided with a roller which is arranged in the radial chute in a rolling way; the cutter is fixed on the outer side of the lower end of the cutter rest; a tool rest pressing plate is installed on the rotating head support through a bolt, a long groove for the tool rest to slide is formed in the tool rest pressing plate, and the tool rest pressing plate is pressed on the upper side of the roller.
The T-shaped sliding groove is formed in the lower inclined plane of the conical head, the T-shaped sliding strip is arranged on the upper inclined plane of the tool rest, and the sliding strip on the upper inclined plane of the tool rest is slidably mounted in the sliding groove on the lower inclined plane of the conical head.
The cutting machine also comprises a trolley, wherein a cutting motor, a feed motor and a control cabinet are arranged on the trolley; the cutting motor is connected with the cutting shaft through a cutting flexible shaft; the feed motor is connected with the feed shaft through a feed flexible shaft; the trolley is provided with a flexible shaft box for placing a cutting flexible shaft and a feed flexible shaft.
A subway tunnel freezing pipe cutting method comprises the following steps:
the first step is as follows: in the construction of the subway tunnel, the trolley provided with the equipment is pushed to a place suitable for cutting in a freezing zone, the trolley is fixed at a selected placing place, the equipment is connected, and the cutting flexible shaft, the feed flexible shaft, the cutting motor and the feed motor are connected;
the second step is that: selecting a proper power distribution cabinet to be electrified, selecting a power testing cabinet motor, selecting a power testing pipe cutting machine, selecting a cutting flexible shaft and a cutter feeding flexible shaft to move along with strength;
the third step: extending a cutting shaft in a pipe cutter into the freezing pipe at a position of about 15-20 cm, putting the pipe cutter and the freezing pipe on the same line as much as possible, and clamping a chuck at the front part of the pipe cutter to clamp the outer part of the extending part of the freezing pipe to keep the same line and fixation;
the fourth step: powering on, starting a cutting motor firstly, keeping a cutting state, then starting a cutter motor, regulating the speed to be slow and uniform to feed so that a cutter moves forwards according to the retreat of a cutter rest, keeping the state, and extending the cutter to slowly cut off the freezing pipe;
the fifth step: when the cutter is not labored any more or the cutter is deep to the extreme point, the machining is finished, and the cutter is turned and fed to retract;
and a sixth step: the pipe cutter and the cut pipes are pulled out, then another freezing pipe is cut, the positions of the freezing pipes at all angles need to be moved, and the cutting flexible shaft and the feeding flexible shaft are arranged and adjusted according to the field conditions.
Compared with the prior art, the invention has the beneficial effects that:
1. the structure is compact, the design is reasonable, the use is convenient, and the trolley can be pushed to the site for use at any time;
2. the application range is wide, and the cutting of freezing pipes at various angles can be adapted;
3. the use is safe, the whole process is operated according to the construction steps, the operation is scientific and safe, and the explosion gun of gas cutting and the damage to the frozen wall are avoided;
4. the efficiency is high, the construction steps are simple, convenient and quick, the electric control is realized, and the mechanization degree is high;
5. the cost is reduced, the original gas cutting process is avoided, and the labor and material costs are greatly reduced.
Drawings
FIG. 1 is a schematic structural view of a pipe cutter according to the present invention;
FIG. 2 is a top view of the housing;
FIG. 3 is a view from the direction C-C of FIG. 2;
FIG. 4 is a front view of the cone head;
FIG. 5 is a left side view of the cone head;
FIG. 6 is a view from A-A in FIG. 4;
FIG. 7 is a view from B-B in FIG. 4;
FIG. 8 is a top view of the rotating head mount;
FIG. 9 is a left side view of FIG. 8;
FIG. 10 is a front view of the tool holder;
FIG. 11 is a left side view of FIG. 10;
FIG. 12 is a schematic view of the cart configuration;
in the figure: 1. cutting the shaft; 2. a large gland; 3. a bearing I; 4. feeding a cutter shaft; 5. a small gland; 6. a shell pressing plate; 7. a cutter feeding pipe; 8. a bearing cap; 9. a bearing IV; 10. a gear I; 11. a housing; 12. a gear II; 13. a conical head; 14. a clamp spring; 15. a bearing VI; 16. a copper sleeve; 17. a tool holder; 17-1, a cutter; 17-2, rollers; 18. a tool rest pressing plate; 19. rotating the head support; 19-1, a radial runner; 20. a gasket; 21. a nut; 22. a shaft circlip II; 23. positioning the hole by using an elastic check ring I; 24. an elastic retainer ring I for a shaft; 25. a circlip II for hole use; 26. a bearing III; 27. a key; 28. a bolt; 29. a circlip III for hole; 30. a bearing II; 31. a trolley; 32. cutting the motor; 33. a feed motor; 34. a control cabinet; 35. a flexible axle box.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below. It is to be understood that the structural innovations described herein are merely illustrative of the innovations and are not intended to limit the scope of the innovations.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the inventive concepts are for the purpose of describing particular embodiments only and are not intended to limit the inventive concepts.
Example one
Referring to fig. 1 to 3, the subway tunnel freezing pipe cutting machine comprises a housing 11 with an open upper end, and a housing pressing plate 6 is fixed at the upper end of the housing 11 through screws. The upper end of the cutting shaft 1 is installed on the shell 11 through a bearing I3, a large gland 2 is installed outside the bearing I3, and the cutting shaft 1 and the bearing I3 are positioned through a shaft elastic check ring I24 and a hole elastic check ring I23. The upper end of the cutter feeding shaft 4 is arranged on the shell 11 through a bearing II 30, and the lower end of the cutter feeding shaft 4 is arranged on the shell 11 through a bearing III 26; a small gland 5 is arranged outside the bearing II 30, and the cutter feeding shaft 4 and the bearing II 30 are positioned through a shaft elastic retainer ring II 22 and a hole elastic retainer ring II 25.
A cutter feeding pipe 7 is slidably sleeved on the cutting shaft 1; a bearing cover 8 is arranged in the shell 11, and a bearing IV 9 is arranged between the bearing cover 8 and the upper end of the cutter feeding pipe 7. The upper end of the cutter feeding pipe 7 is provided with an external thread, and the cutter feeding shaft 4 is connected with the external thread of the cutter feeding pipe 7 through a gear transmission structure. Specifically, the method comprises the following steps: the cutting shaft 1 and the cutter feeding shaft 4 are arranged in parallel; the lower end of the cutter feeding shaft 4 is provided with a gear II 12 through a key 27; the external thread section of the cutter feeding pipe 7 is sleeved with a gear I10, the inner wall of the gear I10 is provided with an internal thread matched with the external thread of the cutter feeding pipe 7, and the gear I10 is meshed with a gear II 12. When the cutter feeding shaft 4 rotates, the gear I10 is driven to rotate through the gear II 12, the external thread sections of the gear I10 and the cutter feeding pipe 7 are equivalent to a nut screw structure, and the cutter feeding pipe 7 is driven to lift through the rotation of the gear I10.
Referring to fig. 8 to 11, the lower end of the cutting shaft 1 is fixed with a rotating head support 19 through a gasket 20 and a nut 21; the upper surface of the rotating head support 19 is provided with 4 uniformly distributed radial sliding grooves 19-1. The lower end of the tool rest 17 is provided with a roller 17-2, and the roller 17-2 is arranged in the radial sliding groove 19-1 in a rolling manner; the cutter 17-1 is fixed outside the lower end of the cutter holder 17. The rotating head support 19 is provided with a tool rest pressing plate 18 through a bolt 28, the tool rest pressing plate 18 is provided with a long groove for the tool rest 17 to slide, and the tool rest pressing plate 18 presses the upper side of the roller 17-2. The tool holder 17 can slide inwards and outwards along the radial slide groove 19-1.
Referring to fig. 4 to 7, the axis of the conical head 13 is provided with a through hole, and the lower end of the feed pipe 7 extends into the upper end of the axis hole of the conical head 13. A bearing VI 15 is arranged between the lower end of the feed pipe 7 and the axial hole of the conical head 13; the bearing VI 15 and the axial hole of the conical head 13 are positioned by a circlip 14 and a hole circlip III 29. A copper sleeve 16 is arranged between the lower end of the axial hole of the conical head 13 and the cutting shaft 1.
The lower side surface of the conical head 13 is an inclined surface, and a T-shaped sliding groove is formed in the lower inclined surface of the conical head 13. The upper side surface of the tool rest 17 is an inclined surface, a T-shaped sliding strip is arranged on the upper inclined surface of the tool rest 17, and the sliding strip on the upper inclined surface of the tool rest 17 is slidably arranged in a sliding groove on the lower inclined surface of the conical head 13. When the conical head 13 is driven by the cutter feeding pipe 7 to slide downwards or upwards, the conical head 13 can push the cutter frame 17 to move outwards or inwards, and then the radial position of the cutter 17-1 is adjusted.
Referring to fig. 12, the pipe cutter is mounted on a trolley 31, and the trolley 31 is provided with a cutting motor 32, a feed motor 33 and a control cabinet 34; the cutting motor 32 is connected with the cutting shaft 1 through a cutting flexible shaft; the feed motor 33 is connected with the feed shaft 4 through a feed flexible shaft; the trolley 31 is provided with a flexible shaft box 35 for placing a cutting flexible shaft and a feeding flexible shaft.
Example two
On the basis of the first embodiment, the cutting method of the subway tunnel freezing pipe comprises the following steps:
the first step is as follows: in the construction of the subway tunnel, the trolley 31 provided with the equipment is pushed to a place suitable for cutting in a freezing zone, the trolley 31 is fixed at the selected placing place, the equipment is connected, and the cutting flexible shaft, the feed flexible shaft, the cutting motor 32 and the feed motor 33 are connected;
the second step is that: selecting a proper power distribution cabinet to be electrified, selecting a power testing cabinet motor, selecting a power testing pipe cutting machine, selecting a cutting flexible shaft and a cutter feeding flexible shaft to move along with strength;
the third step: the method comprises the following steps of (1) extending a cutting shaft 1 in a pipe cutter into a freezing pipe at a position of about 15-20 cm, putting the pipe cutter and the freezing pipe on the same line as much as possible, and clamping the outside of the extending part of the freezing pipe by a clamping head at the front part of the pipe cutter to keep the same line and fixed;
the fourth step: powering on, starting a cutting motor 32 firstly, keeping a cutting state, then starting a feed motor 33, regulating the speed to be slow and uniform to feed so that a cutter 17-1 advances according to the retreat of a cutter rest 17, keeping the state, and extending the cutter 17-1 to slowly cut off a freezing pipe;
the fifth step: when the cutter 17-1 is not stressed any more or the cutter 17-1 goes deep to the extreme point, the machining is finished, and the cutter 17-1 is retracted by turning and feeding;
and a sixth step: the pipe cutter and the cut pipes are pulled out, then another freezing pipe is cut, the positions of the trolleys 31 need to be moved for the freezing pipes at all angles, and the placement of the cutting flexible shafts and the placement of the feeding flexible shafts are adjusted according to the field conditions.
The conical feed mechanism is a brand new feed mechanism, a feed motor drives a feed flexible shaft to be connected with a feed shaft, the feed shaft is transmitted to a feed pipe through a gear, the feed pipe moves downwards to drive a conical head to move downwards, and the conical head moves downwards to drive a tool rest to extend out. The feed mechanism is concentric with the cutting shaft, and bright spots are not mutually influenced and can independently complete corresponding work. The cutting shaft is powered by a motor connected outside the cutting shaft to drive the rotary support, the conical head and the tool rest to cut in a rotating mode. A trolley is matched according to working condition design, equipment is arranged on the trolley in different items, and the trolley can be placed, moved and constructed at any time, and the trolley and the equipment form a set of equipment together. The invention replaces the original gas cutting technology, has doubled efficiency and simple use, and effectively meets the engineering construction requirements.
The method is mainly used for cutting off the tunnel freezing pipe, is mainly suitable for freezing construction of a tunnel connecting passage and a tunnel portal, finishes the later construction of the freezing pipe and is generally used for cutting off the freezing pipe with the diameter of 89 mm; in later-stage popularization and application, the size of the machining part can be adjusted to meet the requirements of end cutting in various industries, different pipe diameters and multi-angle conditions according to actual needs, and the method can be applied to construction in construction areas where pipelines are cut or open fire operation is forbidden when no special operating personnel exist.
The above is the core idea of the innovation of the present invention, and any modification, equivalent replacement or improvement made within the spirit and principle of the innovation shall be included in the protection scope of the present invention.
Claims (10)
1. A pipe cutting machine for a freezing pipe of a subway tunnel,
the method is characterized in that:
comprises a shell (11) with an opening at the upper end, wherein a shell pressing plate (6) which is fixed into a whole is arranged at the upper end of the shell (11);
a cutting shaft (1) and a cutter feeding shaft (4) are rotatably arranged in the shell (11);
a cutter feeding pipe (7) is slidably sleeved on the cutting shaft (1); the upper end of the cutter feeding pipe (7) is provided with an external thread, and the cutter feeding shaft (4) is connected with the external thread of the cutter feeding pipe (7) through a gear transmission structure;
the lower end of the cutting shaft (1) extends out of the shell (11), a rotating head support (19) is fixed at the lower end of the cutting shaft (1), a tool rest (17) is installed on the rotating head support (19) in a manner of sliding along the radial direction of the rotating head support (19), and a tool (17-1) is installed on the tool rest (17);
the lower end of the cutter feeding pipe (7) is connected with a conical head (13); the lower side surface of the conical head (13) is an inclined surface, the upper side surface of the tool rest (17) is an inclined surface, and the lower side surface of the conical head (13) is in sliding connection with the upper side surface of the tool rest (17).
2. The subway tunnel freezing pipe cutting machine according to claim 1, wherein: the cutting shaft (1) upper end is installed on casing (11) through bearing I (3), and big gland (2) are installed outward in bearing I (3), and cutting shaft (1), bearing I (3) are fixed a position through axle with circlip I (24), hole with circlip I (23).
3. The subway tunnel freezing pipe cutting machine according to claim 1, wherein: the upper end of the cutter feeding shaft (4) is installed on the shell (11) through a bearing II (30), and the lower end of the cutter feeding shaft (4) is installed on the shell (11) through a bearing III (26); a small gland (5) is arranged outside the bearing II (30), and the cutter feeding shaft (4) and the bearing II (30) are positioned through a shaft elastic retainer ring II (22) and a hole elastic retainer ring II (25).
4. The subway tunnel freezing pipe cutting machine according to claim 1, wherein: the cutting shaft (1) and the cutter feeding shaft (4) are arranged in parallel; the lower end of the cutter feeding shaft (4) is provided with a gear II (12) through a key (27); the external thread section of the cutter feeding pipe (7) is sleeved with a gear I (10), the inner wall of the gear I (10) is provided with an internal thread matched with the external thread of the cutter feeding pipe (7), and the gear I (10) is meshed with a gear II (12).
5. The subway tunnel freezing pipe cutting machine according to claim 1, wherein: a bearing cover (8) is installed in the shell (11), and a bearing IV (9) is installed between the bearing cover (8) and the upper end of the cutter feeding pipe (7).
6. The subway tunnel freezing pipe cutting machine according to claim 1, wherein: the axis of the conical head (13) is provided with a through hole, and the lower end of the cutter feeding pipe (7) extends into the upper end of the axis hole of the conical head (13); a bearing VI (15) is arranged between the lower end of the cutter feeding pipe (7) and the axial hole of the conical head (13); the bearing VI (15) and the shaft center hole of the conical head (13) are positioned by a snap spring (14) and an elastic retainer ring III (29) for the hole; and a copper sleeve (16) is arranged between the lower end of the shaft center hole of the conical head (13) and the cutting shaft (1).
7. The subway tunnel freezing pipe cutting machine according to claim 1, wherein: the lower end of the cutting shaft (1) is fixed with the rotating head support (19) through a gasket (20) and a nut (21); the upper surface of the rotating head support (19) is provided with uniformly distributed radial sliding grooves (19-1); the lower end of the tool rest (17) is provided with a roller (17-2), and the roller (17-2) is arranged in a radial sliding groove (19-1) in a rolling manner; the cutter (17-1) is fixed on the outer side of the lower end of the cutter frame (17); a tool rest pressing plate (18) is arranged on the rotating head support (19) through a bolt (28), a long groove for the tool rest (17) to slide is formed in the tool rest pressing plate (18), and the tool rest pressing plate (18) is pressed on the upper side of the roller (17-2).
8. The subway tunnel freezing pipe cutting machine according to claim 1, wherein: the T-shaped sliding groove is formed in the lower inclined plane of the conical head (13), the T-shaped sliding strip is arranged on the upper inclined plane of the tool rest (17), and the sliding strip on the upper inclined plane of the tool rest (17) is slidably mounted in the sliding groove on the lower inclined plane of the conical head (13).
9. The subway tunnel freezing pipe cutting machine according to any one of claims 1 to 8, wherein: the cutting machine also comprises a trolley (31), wherein a cutting motor (32), a feed motor (33) and a control cabinet (34) are arranged on the trolley (31); the cutting motor (32) is connected with the cutting shaft (1) through a cutting flexible shaft; the feed motor (33) is connected with the feed shaft (4) through a feed flexible shaft; a soft axle box (35) for placing a cutting soft axle and a feed soft axle is arranged on the trolley (31).
10. A subway tunnel freezing pipe cutting method, which uses the subway tunnel freezing pipe cutting machine of claim 9, the steps are as follows:
the first step is as follows: in the construction of the subway tunnel, a trolley (31) provided with equipment is pushed to a place suitable for cutting at a freezing junction area, the trolley (31) is fixed at a selected placing place, the equipment is connected, and a cutting flexible shaft, a cutting motor (32) and a cutting motor (33) are connected;
the second step is that: selecting a proper power distribution cabinet to be electrified, selecting a power testing cabinet motor, selecting a power testing pipe cutting machine, selecting a cutting flexible shaft and a cutter feeding flexible shaft to move along with strength;
the third step: a cutting shaft (1) in a pipe cutter extends into a position of about 15-20 cm in a freezing pipe, the pipe cutter and the freezing pipe are placed on the same line as much as possible, and a chuck at the front part of the pipe cutter clamps the outer part of the extending part of the freezing pipe to keep the same line and fixation;
the fourth step: powering on, firstly starting a cutting motor (32), keeping a cutting state, then starting a cutter motor (33), regulating the speed to be slow and uniform to feed so that a cutter (17-1) moves forward according to the retreat of a cutter rest (17), keeping the state, and extending the cutter (17-1) to slowly cut off a freezing pipe;
the fifth step: when the cutter (17-1) is not stressed any more or the cutter (17-1) penetrates the extreme point to indicate that the machining is finished, the cutter (17-1) is retracted by turning and feeding;
and a sixth step: the pipe cutter and the cut pipes are pulled out, then the other freezing pipe is cut, the position of a trolley (31) needs to be moved for the freezing pipes at all angles, and the placement of the cutting flexible shaft and the feeding flexible shaft is adjusted according to the field condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011241370.6A CN112475435A (en) | 2020-11-09 | 2020-11-09 | Subway tunnel freezing pipe cutting machine and cutting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011241370.6A CN112475435A (en) | 2020-11-09 | 2020-11-09 | Subway tunnel freezing pipe cutting machine and cutting method |
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| Publication Number | Publication Date |
|---|---|
| CN112475435A true CN112475435A (en) | 2021-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011241370.6A Pending CN112475435A (en) | 2020-11-09 | 2020-11-09 | Subway tunnel freezing pipe cutting machine and cutting method |
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| CN (1) | CN112475435A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4712302A (en) * | 1986-08-29 | 1987-12-15 | Dresser Industries, Inc. | Tube cutter with releasable drive |
| AU603759B3 (en) * | 1990-06-19 | 1990-09-28 | Nick Christodoulou | Internal pipecutter |
| JP2001347415A (en) * | 2000-06-05 | 2001-12-18 | Hakko Co Ltd | Cutting completion detecting method and mechanism of pipe cutter |
| JP2002137115A (en) * | 2000-08-21 | 2002-05-14 | Tokyo Gas Co Ltd | Pipe cutter and pipe cutting method |
| JP2006194014A (en) * | 2005-01-14 | 2006-07-27 | Sekisui House Ltd | Cutting machine and cutting method for steel pipe pile |
| KR20160131404A (en) * | 2015-05-07 | 2016-11-16 | 두산중공업 주식회사 | Cutting device for tube type structure |
| CN108119083A (en) * | 2018-02-11 | 2018-06-05 | 盘锦勇盛利石油科技开发有限公司 | A kind of hydraulic-driven well mouth oil pipe cutter |
-
2020
- 2020-11-09 CN CN202011241370.6A patent/CN112475435A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4712302A (en) * | 1986-08-29 | 1987-12-15 | Dresser Industries, Inc. | Tube cutter with releasable drive |
| AU603759B3 (en) * | 1990-06-19 | 1990-09-28 | Nick Christodoulou | Internal pipecutter |
| JP2001347415A (en) * | 2000-06-05 | 2001-12-18 | Hakko Co Ltd | Cutting completion detecting method and mechanism of pipe cutter |
| JP2002137115A (en) * | 2000-08-21 | 2002-05-14 | Tokyo Gas Co Ltd | Pipe cutter and pipe cutting method |
| JP2006194014A (en) * | 2005-01-14 | 2006-07-27 | Sekisui House Ltd | Cutting machine and cutting method for steel pipe pile |
| KR20160131404A (en) * | 2015-05-07 | 2016-11-16 | 두산중공업 주식회사 | Cutting device for tube type structure |
| CN108119083A (en) * | 2018-02-11 | 2018-06-05 | 盘锦勇盛利石油科技开发有限公司 | A kind of hydraulic-driven well mouth oil pipe cutter |
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