CN107335849B - Hydraulic double-cutter cold cutting pipe beveling machine - Google Patents
Hydraulic double-cutter cold cutting pipe beveling machine Download PDFInfo
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- CN107335849B CN107335849B CN201710685962.9A CN201710685962A CN107335849B CN 107335849 B CN107335849 B CN 107335849B CN 201710685962 A CN201710685962 A CN 201710685962A CN 107335849 B CN107335849 B CN 107335849B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention provides a hydraulic double-cutter cold cutting pipe beveling machine, a traveling wheel and a guide wheel are fixed on a traveling wheel seat, the traveling wheel seat is fixed on a bottom plate, the guide wheel II is independently fixed above the bottom plate, a tensioning gear is fixed on a fastening wheel fixing plate, a side screw is rotated to adjust the position of the tensioning gear, a chain gear is arranged on a traveling motor, the traveling motor is fixed on the bottom plate, a traveling chain wheel is arranged on a traveling gear box, the chain gear and the traveling chain wheel are connected through a chain, the traveling motor rotates and drives the traveling gear box to move through a group of gears, an attached chain passes through the tensioning gear, a driving gear, the guide wheel I and the guide wheel II to fix a host machine on a pipeline, a groove speed regulating valve is adjusted to be opened, the traveling motor provides power for the driving gear to drive the host machine to move along the pipeline, the hydraulic double-cutter is mainly applied to the fields of petroleum and natural gas pipeline construction and repair and the like, and is also applicable to cutting of other large pipelines, the pipeline can be independently cut off, the groove can be singly milled, and the working efficiency can be compositely processed.
Description
Technical Field
The invention relates to the field of hydraulic power pipe cutting machine equipment, in particular to a hydraulic double-cutter cold cutting pipe beveling machine.
Background
In the process of building and repairing petroleum and natural gas pipelines, such as oil and gas pipelines, heat and water supply pipelines, power station pipelines and chemical pipelines, pipeline connection is basically finished by welding. The pipe breaking and groove treatment are needed when welding is needed, and in some occasions with high requirements, cold cutting, namely cutter cutting, is generally required for welding grooves. The traditional metal pipeline bevel is a simple bevel with an inclined plane, and a great amount of current construction experience proves that in the construction process of a large project, particularly in a nuclear power, an electric boiler and a large-scale ultra-large pressure vessel, due to the lack of special equipment, the end bevel cutting of a large-diameter pipeline is difficult to realize at present, the traditional pipeline beveling machine for the project in the world is a fixed beveling machine, the machine is huge, the manufacturing cost is high, the installation and transportation cost is high, the cost is further increased when the pipeline beveling machine is transported to a required place in a reciprocating manner, a special site is required, the traditional pipe cutting machine generally adopts single-blade cold cutting, namely a saw blade structure for cutting two bevel blades into a group or milling the saw blade is used for cutting off, and the pipeline stress concentration is easy to clamp or break the running blade along with the increase of the length of the pipeline cut in the pipe cutting process, so that the running blade is limited to the minimum speed for avoiding the phenomenon, and the running speed of the cold cutting of the pipeline is ensured to ensure the feeding amount, so that the pipe cutting operation time is too long, and the construction progress is influenced.
There are a variety of in-situ cutting devices, but generally, there are the following disadvantages:
1. the machine is huge, the installation and transportation cost is high, the manufacturing cost is high, a special site is needed, and the cost is increased by back and forth transportation, such as a fixed beveling machine;
2. the machine is smaller, but too small is pursued, so that the strength of the equipment is insufficient, the failure rate is ultrahigh, the service life is extremely low, basically no longer than half a year, the machine belongs to disposable equipment, and the machining range of the machine is limited because of too small, so that the machine has various types, and the diameter is in the range of 150-800 mm and reaches 5-6 types of specifications;
3. the labor intensity is high. The common groove equipment comprises all foreign similar equipment, and the machine is fixed on a pipeline by adopting manual tensioning without exception. Generally, the weight of the equipment is between 30 and 200 kg, and the labor intensity is conceivable because people need to screw the expansion claw after manually lifting the equipment. The large foreign equipment is split, namely, the machine is disassembled and assembled on the pipeline, but the equipment is also complicated and consumes labor.
4. The feeding is carried out, the processing principle of the products on the market at present is similar to that of the patent, no exception is manual feeding, namely, a piece of screw is screwed into the screw, when the machine works, a person needs to gradually screw into the feeding screw, and the required labor intensity is high;
5. low power and insufficient tension. For the light weight of the equipment, the motor or the pneumatic motor can be made small to cause smaller power, and the device is particularly obvious when the device is made into a large pipe diameter. The cutter can be cut or dithered, causing cutter damage. Because of the generally screw tightening mode, the machine requires a large force to be fixed to the pipe, and the person is not necessarily fixed the same each time. The phenomenon of loosening of the machine can occur frequently, and even the accident that the machine falls down and breaks and hurts people can occur;
6. the feeding process is uneven, and the quality of the manufactured groove is low and has ripples. Because the person is operating, no further description is provided here.
Disclosure of Invention
In order to overcome the problems in the prior art, the invention provides a hydraulic double-cutter cold cutting pipe beveling machine which is mainly applied to the fields of petroleum and natural gas pipeline construction, maintenance and rush repair and the like, is also suitable for cutting other large-scale pipelines, can cut off the pipelines independently, can mill grooves independently, and can be processed in a combined way to improve the working efficiency.
The technical scheme of the invention is as follows: the hydraulic double-cutter cold cutting pipe beveling machine comprises an attached chain, a first guide wheel, a tension gear, a driving gear, a second guide wheel, a side screw, a reversing valve, a walking speed regulating valve, a groove speed regulating valve, an end mill speed regulating valve, a main switch ball valve, a walking motor, a bevel disk milling cutter, an end mill, a bottom plate, a fastening wheel fixing plate, a pair of cutter vertical plates, a walking gear box, a sprocket, a walking sprocket, a main cutter motor, a main cutter gear box, a pair of cutter motors, a sliding block layering, a pair of cutter connecting plates, a pair of cutter gear boxes, walking wheels, a walking wheel seat, a main cutter lifting screw and an end mill lifting screw, wherein the walking wheel and the first guide wheel are fixed on the walking wheel seat, the walking wheel seat is fixed on the bottom plate, the second guide wheel is independently fixed above the bottom plate, the tension gear is fixed on the fastening wheel fixing plate, the position of the side screw is regulated, the sprocket is arranged on the walking motor, the walking motor is fixed on the bottom plate, the walking sprocket is arranged on the walking gear box, the sprocket and the walking sprocket is connected with the walking sprocket by a group of gears, the walking motor drives the walking gear box to move along the tension gear, the driving gear passes through the guide wheel and drives the first guide wheel to move along the guide wheel, and the main machine is provided by the tension gear, and the main machine is driven by the tension gear, and the guide wheel is adjusted to move by the guide wheel;
the groove disc milling cutter consists of a left groove cutter, a cutting-off cutter and a right groove cutter, three cutters are arranged on a main cutter gear box, a main cutter motor is connected with the main cutter gear box, the main cutter gear box is fixed on a bottom plate by four optical axis guide rails, the main cutter lifting screw rod is used for adjusting the height position of the main cutter gear box, a groove speed regulating valve is opened, and the main cutter motor drives the main cutter gear box to operate so as to drive the groove disc milling cutter to rotate;
the auxiliary cutter system consists of an auxiliary cutter motor, a sliding block layering, an auxiliary cutter connecting plate and an auxiliary cutter gear box, wherein the auxiliary cutter motor, the sliding block layering, the auxiliary cutter connecting plate and the auxiliary cutter gear box are arranged on an auxiliary cutter vertical plate;
fixing a hydraulic double-cutter cold cutting pipe beveling machine above a pipeline, connecting a guide wheel I, a tensioning gear, a driving gear and a guide wheel II together along the outer diameter of the pipeline by an attached chain, putting on a tooth wheel pin, rotating a side screw rod, tensioning the attached chain, and adjusting the attached chain to be vertical to the pipeline to be operated and the tightening force distance value;
connecting a long-distance pipeline according to the mark, enabling a reversing valve handle to be in a middle position, adjusting a walking speed regulating valve, a groove speed regulating valve and a vertical milling speed regulating valve to be in a closed state, and enabling a main switch ball valve to be screwed to be in a 'off' state;
starting a hydraulic station unit, adjusting the system pressure to 8MPA, opening a hydraulic station valve, and supplying pressure oil to a hydraulic double-cutter cold cutting pipe beveling machine;
the ball valve of the main switch is rotated to the state of opening, the traveling speed regulating valve is adjusted, the reversing valve handle is shifted, the traveling motor rotates, the equipment travels along the attached chain, the reversing valve handle is shifted reversely, the equipment can travel in the opposite direction, whether abnormality exists or not is checked, and whether a long plug is caused by traveling or not is checked.
Preferably, the running speed regulating valve is started, the equipment moves along the outer diameter of a pipeline, the speed is controlled to be 20-25mm/min, the end mill speed regulating valve is started, the end mill is rotated, the end mill lifting screw above is rotated to enable the end mill to descend, the pipe wall is cut, the groove speed regulating valve is started, the groove disc milling cutter is rotated, the top main cutter lifting screw is rotated, the groove disc milling cutter is descended, the pipe fitting is cut, the groove disc milling cutter is thoroughly cut, downward feeding can be stopped, in the milling process, if an emergency exists, the main switch ball valve is immediately closed, the hydraulic station power source equipment is closed again, the pressure in the system is removed, the groove speed regulating valve is rotated, the speed is controlled to be 25-30mm/min for cutting, the main switch ball valve is closed after the pipe is cut, the hydraulic station power source is closed again, and the equipment is dismounted.
Preferably, the walking speed regulating valve, the groove speed regulating valve and the end mill speed regulating valve are used clockwise as the speed reduction speed and anticlockwise as the speed increase speed.
Preferably, the bevel disk milling cutter rotates clockwise, and the end milling cutter rotates clockwise, so that the bevel disk milling cutter does not rotate reversely.
Preferably, the running speed interval regulating value of the running speed regulating valve is 30mm-120mm/min, the running speed is determined according to the thickness of the wall of the cut pipe, the running speed with the wall thickness less than or equal to 10mm is 120mm/min, the running speed with the wall thickness more than or equal to 16mm is 30mm, and the correct running speed is regulated at any time according to the use environment and conditions.
Preferably, the feeding amount of the groove disc milling cutter is more than or equal to the pipe wall thickness, the feeding amount of the end milling cutter is less than or equal to the pipe wall thickness/2, the pipe diameter of a hydraulic double-cutter cold cutting pipe beveling machine is phi 159-phi 1422mm, and the pipe wall thickness is not more than 25mm.
Preferably, the bevel disk milling cutter has a rotational speed of 80-100rpm/min and the end milling cutter has a rotational speed of 450rpm/min.
Preferably, the groove disc milling cutter consists of a left groove cutter, a cutting cutter and a right groove cutter, and the end milling cutter is a phi 16mm coating cutter.
Preferably, the additional chain is a toothed chain with a tightening force of 100Nm.
The beneficial effects of the invention are as follows: the hydraulic double-cutter cold-cutting pipe beveling machine is mainly applied to the fields of petroleum and natural gas pipeline construction, maintenance and rush repair and the like, is also applicable to cutting of other large pipelines, can cut off the pipelines independently, can mill grooves independently, can be used for combined machining to improve the working efficiency, and can improve the working efficiency to the greatest extent compared with the condition that the mechanical equipment of the prior market is single in function and low in efficiency.
Drawings
The invention is further illustrated with reference to the following figures:
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a block diagram of the present invention;
FIG. 3 is a block diagram of the present invention;
FIG. 4 is a block diagram of the present invention;
FIG. 5 is a block diagram of the present invention;
FIG. 6 is a block diagram of the present invention;
FIG. 7 is a block diagram of the present invention;
FIG. 8 is a block diagram of the present invention;
FIG. 9 is a block diagram of the present invention;
FIG. 10 is a block diagram of the present invention;
FIG. 11 is a block diagram of the present invention;
fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and 11 show: 1. the auxiliary chain, 2, a first guide wheel, 3, a tensioning gear, 4, a driving gear, 5, a second guide wheel, 6, a side screw, 7, a reversing valve, 8, a walking speed regulating valve, 9, a groove speed regulating valve, 10, an end mill speed regulating valve, 11, a main switch ball valve, 12, a walking motor, 13, a groove disc milling cutter, 14, an end milling cutter, 15-1, a bottom plate, 15-2, a fastening wheel fixing plate, 15-3, a secondary cutter vertical plate, 15-4, a walking gear box, 15-5, a sprocket, 15-6, a walking sprocket, 15-7, a primary cutter motor, 15-8, a primary cutter gear box, 16-1, a secondary cutter motor, 16-2, a sliding block, 16-3, a sliding block, a pressing strip, 16-4, a secondary cutter connecting plate, 16-5, a secondary gear box, 17, a travelling wheel seat, 18, a walking screw, 19, a primary cutter lifting screw, 20 and a secondary cutter lifting screw.
Detailed Description
The present invention will be described in further detail with reference to the drawings, which are only for the purpose of illustrating the invention, and are not to be construed as limiting the invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in figures 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 and 11, the hydraulic double-cutter cold cutting pipe beveling machine consists of an attached chain 1, a guide wheel I2, a tensioning gear 3, a driving gear 4, a guide wheel II 5, a side screw 6, a reversing valve 7, a traveling speed regulating valve 8, a bevel speed regulating valve 9, an end mill speed regulating valve 10, a total switch ball valve 11, a traveling motor 12, a bevel disk milling cutter 13, an end mill 14, a bottom plate 15-1, a fastening wheel fixing plate 15-2, a secondary cutter vertical plate 15-3, a traveling gear box 15-4, a sprocket 15-5, a traveling sprocket 15-6, a primary cutter motor 15-7, a primary cutter gear box 15-8, a secondary cutter motor 16-1, a sliding block 16-2, a sliding block pressing bar 16-3, a secondary cutter connecting plate 16-4, a secondary cutter gear box 16-5, a wheel seat 17, a traveling wheel 18, a primary cutter lifting screw rod 19 and an end mill lifting screw rod 20, the travelling wheel 17 and the first guide wheel 2 of the main body and the travelling part are fixed on the travelling wheel seat 18, the travelling wheel seat 18 is fixed on the bottom plate 15-1, the second guide wheel 5 is independently fixed above the bottom plate 15-1, the tension gear 3 is fixed on the fastening wheel fixing plate 15-2, the position of the tension gear 3 is adjusted by rotating the side screw 6, the chain wheel 15-5 is arranged on the travelling motor 12, the travelling motor 12 is fixed on the bottom plate 15-1, the travelling chain wheel 15-6 is arranged on the travelling gear box 15-4, the chain wheel 15-5 and the travelling chain wheel 15-6 are connected by a chain, the travelling motor 12 rotates and drives the travelling gear box 15-4 to move by a group of gears, the subsidiary chain 1 passes through the tensioning gear 3, the driving gear 4, the first guide wheel 2 and the second guide wheel 5 to fix the host on the pipeline, the groove speed regulating valve 9 is adjusted to be opened, and the walking motor 12 provides power for the driving gear 4 to drive the host to move along the pipeline;
the groove disc milling cutter 13 consists of a left groove cutter, a cutting-off cutter and a right groove cutter, three cutters are arranged on a main cutter gear box 15-8, a main cutter motor 15-7 is connected with the main cutter gear box 15-8, the main cutter gear box 15-8 is fixed on a bottom plate 15-1 through four optical axis guide rails, the main cutter lifting screw 19 adjusts the height position of the main cutter gear box 15-8, a groove speed regulating valve 9 is opened, and the main cutter motor 15-7 drives the main cutter gear box 15-8 to operate so as to drive the groove disc milling cutter 13 to rotate;
the auxiliary cutter system consists of an auxiliary cutter motor 16-1, a sliding block 16-2, a sliding block pressing bar 16-3, an auxiliary cutter connecting plate 16-4 and an auxiliary cutter gear box 16-5, wherein the auxiliary cutter motor 16-1, the sliding block pressing bar 16-3, the auxiliary cutter connecting plate 16-4 and the auxiliary cutter gear box 16-5 are arranged on an auxiliary cutter vertical plate 15-3, an end mill 14 is fixed on the auxiliary cutter gear box 16-5 by a spring clamp, the auxiliary cutter gear box 16-5 is connected with the sliding block 16-2, the sliding block pressing bar 16-3 fixes the auxiliary cutter gear box 16-5 on the auxiliary cutter connecting plate 16-4, the auxiliary cutter motor 16-1 is arranged on the auxiliary cutter gear box 16-5, an end mill speed regulating valve 10 is opened, the auxiliary cutter motor 16-1 drives the auxiliary cutter gear box 16-5 to move, the end mill 14 rotates, and the end mill lifting screw 20 can regulate the height of the end mill 14;
fixing a hydraulic double-cutter cold cutting pipe beveling machine above a pipeline, connecting a guide wheel I2, a tensioning gear 3, a driving gear 4 and a guide wheel II 5 together along the outer diameter of the pipeline by an attached chain 1, threading a toothed wheel pin, rotating a side screw 6, tensioning the attached chain 1, adjusting the attached chain 1 to be vertical to the pipeline to be operated, and screwing a force distance value;
connecting a long-distance pipeline according to the mark, enabling the handle of the reversing valve 7 to be in a neutral position, adjusting the walking speed regulating valve 8, the groove speed regulating valve 9 and the end mill speed regulating valve 10 to be in a closed state, and screwing the total switch ball valve 11 to be in a [ closed ] state;
starting a hydraulic station unit, adjusting the system pressure to 8MPA, opening a hydraulic station valve, and supplying pressure oil to a hydraulic double-cutter cold cutting pipe beveling machine;
the main switch ball valve 11 is rotated to the state of opening, the traveling speed regulating valve 8 is adjusted, the handle of the reversing valve 7 is stirred, the traveling motor 12 rotates, the equipment travels along the attached chain 1, the handle of the reversing valve 7 is stirred reversely, the equipment can travel in the opposite direction, whether abnormality exists or not is checked, and whether the traveling is long or not is checked.
Preferably, the running speed regulating valve 8 is started, the equipment moves along the outer diameter of a pipeline, the speed is controlled to be 20-25mm/min, the end mill speed regulating valve 10 is started, the end mill 14 rotates, the upper end mill lifting screw 20 is rotated to enable the end mill 14 to descend, the chip pipe wall is cut, the groove speed regulating valve 9 is started, the groove disc milling cutter 13 rotates, the top main cutter lifting screw 19 is rotated, the groove disc milling cutter 13 descends, the cutting pipe fitting and the groove disc milling cutter 13 are cut thoroughly, the downward feeding can be stopped, in the milling process, if emergency occurs, the main switch ball valve 11 is closed rapidly, the hydraulic station power source equipment is closed again, the pressure in the system is eliminated, the groove speed regulating valve 9 is rotated, the speed is controlled to be 25-30mm/min for cutting, the main switch ball valve 11 is closed after the pipe is cut, the hydraulic station power source is closed, and the equipment is dismounted.
Preferably, the traveling speed regulating valve 8, the groove speed regulating valve 9 and the end mill speed regulating valve 10 are used clockwise to reduce the speed and anticlockwise to increase the speed.
Preferably, the bevel disk mill 13 rotates clockwise, and the end mill 14 rotates clockwise, without reversing.
Preferably, the running speed interval adjusting value of the running speed adjusting valve 8 is 30mm-120mm/min, the running speed is determined according to the thickness of the cut pipe wall, the running speed with the wall thickness less than or equal to 10mm is 120mm/min, the running speed with the wall thickness more than or equal to 16mm is 30mm, and the correct running speed is adjusted at any time according to the use environment and conditions.
Preferably, the feeding amount of the groove disc milling cutter 13 is larger than or equal to the wall thickness of a pipe, the feeding amount of the end milling cutter 14 is larger than or equal to the wall thickness/2, the pipe diameter of a pipeline suitable for the hydraulic double-cutter cold cutting pipe beveling machine is phi 159-phi 1422mm, and the wall thickness of the pipeline is not more than 25mm.
Preferably, the bevel disk mill 13 rotates at 80-100rpm/min and the end mill 14 rotates at 450rpm/min.
Preferably, the bevel disk milling cutter 13 consists of a left bevel cutter, a cutting cutter and a right bevel cutter, and the end milling cutter 14 is a phi 16mm coating cutter.
Preferably, the additional chain 1 is a toothed chain with a tightening force of 100Nm.
Example 1
Cutting off pipes individually
And starting the groove speed regulating valve 9 and the groove disc milling cutter 13 to rotate, rotating the top main cutter lifting screw rod 19, descending the cutter disc, cutting the pipe fitting, and completely cutting the groove cutter, so that the downward feeding can be stopped.
Example 2
Composite processing
1. The walking speed regulating valve 8 is started, the equipment moves along the pipe diameter, and the speed is controlled to be 20-25mm/min
2. Starting the end mill speed regulating valve 10, rotating the end mill 14, rotating the upper end mill lifting screw 20, descending the end mill 14, cutting the pipe wall, and influencing the walking speed by the cutting depth of the end mill 14, wherein the following table is shown:
| milling cutter diameter | Chip depth | Speed of walking |
| 16 | 16 | 30mm/min |
| 16 | 18 | 25mm/min |
| 16 | 20 | 22mm/min |
3. Starting the groove speed regulating valve 9 and the groove disc milling cutter 13 to rotate, rotating the top screw rod 19, descending the cutter head, cutting the pipe fitting, and completely cutting the groove cutter, so that the downward feeding can be stopped;
4. in the milling process, if an emergency exists, the groove speed regulating valve 9 is closed rapidly, then the power source equipment of the hydraulic station is closed, and the pressure in the system is removed;
and rotating the groove speed regulating valve 9, controlling the speed to be 25-30mm/min for cutting, closing the ball valve after the pipe is cut, closing the power source of the hydraulic station, and unloading the equipment.
The invention provides power for a main machine by a diesel engine driven duplex pump, a walking motor 12, a main cutter motor 15-7 and an auxiliary cutter motor 16-1 run simultaneously, the walking motor 12 is responsible for walking of the main machine on a pipeline, and the main cutter motor 15-7 and the auxiliary cutter motor 16-1 drive a groove disc milling cutter 13 and an end milling cutter 14 to cut the pipe wall simultaneously.
The invention is mainly applied to the fields of petroleum and natural gas pipeline construction, maintenance and rush repair and the like, is also suitable for cutting other large-scale pipelines, is novel multifunctional pipeline cutting equipment, can be used for independently cutting off pipelines, can be used for independently milling grooves, and can be used for combined machining to improve the working efficiency. Compared with the condition that the mechanical equipment in the current market is single in function and low in efficiency, the hydraulic double-cutter cold cutting pipe beveling machine can improve the working efficiency to the greatest extent.
The above embodiments of the present invention are not intended to limit the present invention, and various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (9)
1. The hydraulic double-cutter cold cutting pipe beveling machine consists of an attached chain (1), a first guide wheel (2), a tensioning gear (3), a driving gear (4), a second guide wheel (5), a side screw (6), a reversing valve (7), a traveling speed regulating valve (8), a bevel speed regulating valve (9), an end milling speed regulating valve (10), a main switch ball valve (11), a traveling motor (12), a bevel disc milling cutter (13), an end milling cutter (14), a bottom plate (15-1), a fastening wheel fixing plate (15-2), a secondary cutter vertical plate (15-3), a traveling gear box (15-4), a sprocket (15-5), a traveling sprocket (15-6), a main cutter motor (15-7), a main cutter gear box (15-8), a secondary cutter motor (16-1), a sliding block (16-2), a sliding block pressing bar (16-3), a secondary cutter connecting plate (16-4), a secondary cutter gear box (16-5), a traveling wheel (17), a traveling wheel seat (18), a main cutter lifting screw (19) and an end milling cutter lifting screw (20), and is characterized in that: the walking wheel (17) and the first guide wheel (2) are fixed on a walking wheel seat (18), the walking wheel seat (18) is fixed on a bottom plate (15-1), the second guide wheel (5) is independently fixed above the bottom plate (15-1), the tensioning gear (3) is fixed on a fastening wheel fixing plate (15-2), the side screw (6) is rotated to adjust the position of the tensioning gear (3), the chain wheel (15-5) is mounted on a walking motor (12), the walking motor (12) is fixed on the bottom plate (15-1), the walking chain wheel (15-6) is mounted on a walking gear box (15-4), the chain wheel (15-5) and the walking chain wheel (15-6) are connected through a chain, the walking motor (12) rotates to drive the walking gear box (15-4) through a group of gears, the subsidiary chain (1) penetrates through the tensioning gear (3), the driving gear (4), the first guide wheel (2) and the second guide wheel (5) to fix a host on a pipeline, the adjustable groove speed regulating valve (9) is opened, and the walking motor (12) provides power for the driving of the host machine (4) to move along the driving direction;
the groove disc milling cutter (13) consists of a left groove cutter, a cutting cutter and a right groove cutter, three cutters are arranged on a main cutter gear box (15-8), a main cutter motor (15-7) is connected with the main cutter gear box (15-8), the main cutter gear box (15-8) is fixed on a bottom plate (15-1) through four optical axis guide rails, the main cutter lifting screw (19) is used for adjusting the height position of the main cutter gear box (15-8), a groove speed regulating valve (9) is opened, and the main cutter motor (15-7) drives the main cutter gear box (15-8) to operate to drive the groove disc milling cutter (13) to rotate;
the auxiliary cutter system comprises an auxiliary cutter motor (16-1), a sliding block (16-2), a sliding block pressing bar (16-3), an auxiliary cutter connecting plate (16-4) and an auxiliary cutter gear box (16-5), wherein the auxiliary cutter motor (16-1), the sliding block pressing bar (16-3), the auxiliary cutter connecting plate (16-4) and the auxiliary cutter gear box (16-5) are arranged on an auxiliary cutter vertical plate (15-3), an end mill (14) is fixed on the auxiliary cutter gear box (16-5) through a spring clamp, the auxiliary cutter gear box (16-5) is connected with the sliding block (16-2), the sliding block pressing bar (16-3) fixes the auxiliary cutter gear box (16-5) on the auxiliary cutter connecting plate (16-4), the auxiliary cutter motor (16-1) is arranged on the auxiliary cutter gear box (16-5), an end mill speed regulating valve (10) is opened, the auxiliary cutter motor (16-1) drives the auxiliary cutter gear box (16-5) to move, the end mill (14) rotates, and the height of the end mill (20) can be adjusted through rotation of the end mill;
fixing a hydraulic double-cutter cold cutting pipe beveling machine above a pipeline, connecting a first guide wheel (2), a tensioning gear (3), a driving gear (4) and a second guide wheel (5) together along the outer diameter of the pipeline by an attached chain (1), putting on a toothed wheel pin, rotating a side screw (6), tensioning the attached chain (1), adjusting the attached chain (1) to be vertical to the pipeline to be operated, and screwing a force distance value;
connecting a long-distance pipeline according to the mark, enabling a handle of a reversing valve (7) to be in a neutral position, adjusting a walking speed regulating valve (8), a groove speed regulating valve (9) and a vertical milling speed regulating valve (10) to be in a closed state, and enabling a main switch ball valve (11) to be screwed to be in a closed state; starting a hydraulic station unit, adjusting the system pressure to 8MPA, opening a hydraulic station valve, and supplying pressure oil to a hydraulic double-cutter cold cutting pipe beveling machine;
the main switch ball valve (11) is rotated to the state of opening, the walking speed regulating valve (8) is adjusted, the handle of the reversing valve (7) is stirred, the walking motor (12) rotates, the equipment walks along the attached chain (1), the handle of the reversing valve (7) is stirred reversely, the equipment can walk in the opposite direction, whether abnormality exists or not is checked, and whether the equipment is long or not is checked.
2. The hydraulic double-blade cold-cutting pipe beveling machine of claim 1 wherein: the running speed regulating valve (8) is started, the equipment moves along the outer diameter of a pipeline, the speed is controlled to be 20-25mm/min, the end mill speed regulating valve (10) is started, the end mill (14) rotates, the end mill lifting screw (20) above rotates to enable the end mill (14) to descend, the pipe wall of a cutting chip is started, the groove speed regulating valve (9) is started, the groove disc milling cutter (13) rotates, the top main cutter lifting screw (19) rotates, the groove disc milling cutter (13) descends, the cutting pipe fitting cuts through, the groove disc milling cutter (13) can stop feeding downwards, in the milling process, if emergency happens, the main switch ball valve (11) is closed rapidly, the hydraulic station power source equipment is closed again, the pressure in the system is removed, the groove speed regulating valve (9) is rotated, the speed is controlled to be 25-30mm/min for cutting, the main switch ball valve (11) is closed after the pipe is cut, and the equipment is removed.
3. The hydraulic double-blade cold-cutting pipe beveling machine of claim 1 wherein: the walking speed regulating valve (8), the groove speed regulating valve (9) and the vertical milling speed regulating valve (10) are used at a clockwise speed decreasing speed and a counterclockwise speed increasing speed.
4. The hydraulic double-blade cold-cutting pipe beveling machine of claim 1 wherein: the groove disc milling cutter (13) rotates clockwise, and the end milling cutter (14) rotates clockwise, so that the groove disc milling cutter does not rotate reversely.
5. The hydraulic double-blade cold-cutting pipe beveling machine of claim 1 wherein: the running speed interval regulating value of the running speed regulating valve (8) is 30mm-120mm/min, the running speed is determined according to the thickness of the cut pipe wall, the running speed with the wall thickness less than or equal to 10mm is 120mm/min, the running speed with the wall thickness more than or equal to 16mm is 30mm/min, and the correct running speed is regulated at any time according to the use environment and conditions.
6. The hydraulic double-blade cold-cutting pipe beveling machine of claim 1 wherein: the feeding amount of the groove disc milling cutter (13) is more than or equal to the wall thickness of the pipe, the feeding amount of the end milling cutter (14) is more than or equal to the wall thickness/2, and the pipe diameter of the hydraulic double-cutter cold cutting pipe beveling machine is phi 159-phi 1422mm, and the wall thickness of the pipe is not more than 25mm.
7. The hydraulic double-blade cold-cutting pipe beveling machine of claim 1 wherein: the rotating speed of the groove disc milling cutter (13) is 80-100rpm/min, and the rotating speed of the end milling cutter (14) is 450rpm/min.
8. The hydraulic double-blade cold-cutting pipe beveling machine of claim 1 wherein: the groove disc milling cutter (13) consists of a left groove cutter, a cutting cutter and a right groove cutter, and the end milling cutter (14) is a phi 16mm coating cutter.
9. The hydraulic double-blade cold-cutting pipe beveling machine of claim 1 wherein: the subsidiary chain (1) is a toothed chain, and the tightening force is 100Nm.
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| CN201710685962.9A CN107335849B (en) | 2017-08-11 | 2017-08-11 | Hydraulic double-cutter cold cutting pipe beveling machine |
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| CN201710685962.9A CN107335849B (en) | 2017-08-11 | 2017-08-11 | Hydraulic double-cutter cold cutting pipe beveling machine |
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| CN107335849B true CN107335849B (en) | 2023-08-11 |
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| CN110681897A (en) * | 2019-10-15 | 2020-01-14 | 中国工程物理研究院机械制造工艺研究所 | Portable milling and cutting device and method for special-shaped holes of pipelines |
| CN114800023B (en) * | 2022-06-20 | 2024-04-05 | 辽宁元创石化技术有限公司 | Edge shaving machine for machining composite board products |
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