CN114055770A - Mechanical composite pipeline preparation method based on hydraulic drive - Google Patents
Mechanical composite pipeline preparation method based on hydraulic drive Download PDFInfo
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- CN114055770A CN114055770A CN202111451300.8A CN202111451300A CN114055770A CN 114055770 A CN114055770 A CN 114055770A CN 202111451300 A CN202111451300 A CN 202111451300A CN 114055770 A CN114055770 A CN 114055770A
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- 239000002131 composite material Substances 0.000 title claims abstract description 47
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 238000003825 pressing Methods 0.000 claims abstract description 72
- 238000000034 method Methods 0.000 claims abstract description 38
- 229910000975 Carbon steel Inorganic materials 0.000 claims abstract description 10
- 239000010962 carbon steel Substances 0.000 claims abstract description 10
- 238000007493 shaping process Methods 0.000 claims abstract description 4
- 230000000712 assembly Effects 0.000 claims description 22
- 238000000429 assembly Methods 0.000 claims description 22
- 238000007789 sealing Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 19
- 238000001125 extrusion Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000010310 metallurgical process Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/26—Lining or sheathing of internal surfaces
- B29C63/34—Lining or sheathing of internal surfaces using tubular layers or sheathings
- B29C63/341—Lining or sheathing of internal surfaces using tubular layers or sheathings pressed against the wall by mechanical means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention discloses a method for preparing a mechanical composite pipeline based on hydraulic drive, which comprises the steps of placing pipe expanding equipment inside an inner lining pipe to be expanded, adjusting an adjusting mechanism of a driving vehicle in the pipe expanding equipment, enabling wheels on three folding and unfolding components uniformly distributed along the circumferential direction to be abutted against the inner lining pipe, and ensuring that the driving vehicle and the inner lining pipe are coaxially arranged; then, starting a motor on wheels of the driving vehicle to drive the driving vehicle to move forward, and driving the pressing device of the pipe expanding equipment to synchronously move forward by the driving vehicle; and simultaneously, starting a hydraulic device to supply oil to the inside of the pressing device, pressing the lining pipe by the pressing device under the driving of the oil pressure, and starting rotary motion, so that the pressing device gradually completes expansion of the lining pipe in a spiral motion process combining linear forward motion and rotary motion, the lining pipe and the carbon steel pipe deform until the carbon steel pipe contacts the outer mould for shaping the pipeline, and the preparation of the composite pipeline is completed. The invention can realize continuous operation, and has stable operation process, low preparation cost and high production efficiency.
Description
Technical Field
The invention belongs to the field of composite pipeline preparation, and particularly relates to a hydraulic drive-based mechanical composite pipeline preparation method.
Background
The composite pipeline has light weight, good toughness, impact resistance, high compressive strength, smooth inner wall, small frictional resistance and better rigidity and strength, and is widely applied to the fields of industrial oil and gas transportation, industrial water circulation systems, wear-resistant and corrosion-resistant systems, cold and hot water transportation and the like; therefore, at present, higher requirements are placed on the processing and preparation of the composite pipeline.
At present, the preparation and processing of the composite pipeline are generally carried out in the following two ways: machining or metallurgical processing; the mechanical processing mode is that the lining pipe is expanded and compacted through a mechanical structure, so that the lining pipe and the carbon steel pipe are compounded; the metallurgical processing mode is that the lining material and the carbon steel pipe are metallurgically combined through a surfacing or hot rolling process, so that a composite pipeline is obtained; compared with the composite pipeline obtained in a mechanical mode, the composite pipeline prepared in a metallurgical mode has stronger bonding force between two materials; however, the cost of the metallurgical process is high, the preparation process is complex, and the metallurgical mode is difficult to be the optimal choice when the condition that a large amount of high-quality composite pipelines are required to be prepared urgently is involved; therefore, the mechanical preparation and processing of the composite pipeline is a currently applied mode.
In the prior art, a composite pipeline is prepared by a mechanical structure, and the modes of outer mold fixing and inner mold expanding are mostly adopted, so that the structure of an inner mold and a specific method for expanding a lining pipe by the inner mold are the key points for preparing the composite pipeline; most of the existing internal molds are of an integrated structure, the mode for expanding the lining pipe is single, namely the lining pipe is expanded through the self structure of the integrated internal mold, but the structure of the lining pipe is damaged possibly in the expanding process due to uneven stress or overlarge pressure of the lining pipe, so that the quality of the composite pipeline is not up to the standard; the composite pipeline is limited by the structure of the inner die, and the composite pipeline is prepared and processed by a special processing method in the prior art, so that the processing process is low in efficiency and high in cost; in order to solve the above problems, a method for preparing a composite pipeline, which can realize continuous operation and has a stable and efficient operation process, is required to be provided.
Disclosure of Invention
The invention provides a mechanical composite pipeline preparation method based on hydraulic drive, aiming at the problem that the pipeline structure is easy to be damaged due to uneven stress or overlarge stress of an inner lining pipe in the process of preparing a composite pipeline in the prior art, so as to realize a stable and efficient composite pipeline preparation process.
The invention relates to a method for preparing a mechanical composite pipeline based on hydraulic drive, which comprises the following steps:
arranging pipe expanding equipment inside an inner lining pipe to be expanded, adjusting an adjusting mechanism of a driving vehicle in the pipe expanding equipment, enabling wheels on three folding and unfolding components uniformly distributed along the circumferential direction to be abutted on the inner lining pipe, and ensuring that the driving vehicle and the inner lining pipe are coaxially arranged; then, starting a motor on wheels of the driving vehicle to drive the driving vehicle to move forward, and driving the pressing device of the pipe expanding equipment to synchronously move forward by the driving vehicle; and simultaneously, starting a hydraulic device to supply oil to the inside of the pressing device, pressing the lining pipe by the pressing device under the driving of the oil pressure, and starting rotary motion, so that the pressing device gradually completes expansion of the lining pipe in a spiral motion process combining linear forward motion and rotary motion, the lining pipe and the carbon steel pipe deform until the carbon steel pipe contacts a pipeline shaping outer mold, and the preparation of the composite pipeline is completed.
Preferably, the process of adjusting the radial position of the wheel by the driving vehicle through the adjusting mechanism is as follows:
because the spiral directions of the two ends of the threaded rod are opposite, the threaded rod in the adjusting mechanism is rotated, so that a left-handed nut and a right-handed nut which respectively form a spiral pair with the two ends of the threaded rod move oppositely on the threaded rod, three folding and unfolding components which are connected with the left-handed nut and the right-handed nut and are uniformly distributed along the circumferential direction of the driving vehicle are synchronously unfolded, and wheels of the three folding and unfolding components are pressed against the lining pipe; the unfolding process of the folding and unfolding component is as follows: the distance between the two support rods respectively fixed with the left-handed nut and the right-handed nut is reduced, and the two support rods drive the wheel carrier to extend outwards through the two connecting rods to push the wheel to abut against the lining pipe.
More preferably, in the folding and unfolding assembly, two support rods are respectively fixed on a left-handed nut and a right-handed nut and are respectively fixed with two rod sleeves; two short pins fixed at one end of the two side link rods are respectively supported on the corresponding rod sleeve through a bearing I; the other ends of the two side link rods and the wheel carrier form a composite hinge through long pins; the two optical axes are supported on the wheel carrier through a second bearing and are respectively driven by two motors; the two wheels are fixed on two optical axes.
Preferably, the adjusting mechanism comprises a handle shaft and a handle besides a threaded rod, a left-handed nut and a right-handed nut; the handle shaft is fixed on the threaded rod; the handle is fixed on the handle shaft.
Preferably, the drive vehicle comprises a drive vehicle housing; three rectangular channels which are uniformly distributed along the circumferential direction are formed in the driving vehicle shell, and the three folding and unfolding assemblies respectively penetrate through the corresponding rectangular channels.
Preferably, the hydraulic device supplies oil to the interior of the pressing device and drives the pressing device to move, and the process comprises the following steps:
starting a hydraulic device, feeding oil into the interior of a shell of the pressing device, and driving the two roller assemblies to extend outwards relative to the shell of the pressing device under the driving of oil pressure and to be pressed against the lining pipe; meanwhile, the oil drives the pressing device shell and the two roller assemblies to synchronously rotate through the spiral line grooves in the pressing device shell.
Preferably, the pressing device comprises two roller assemblies, a pressing device end cover, a central shaft and a liquid sealing ring; the central shaft and the pressing device shell form a revolute pair; the two pressing device end covers are fixed at the two ends of the central shaft; the space among the end cover of the pressing device, the central shaft and the shell of the pressing device is a hydraulic cavity; a liquid sealing ring is arranged between the end cover of the compressing device and the shell of the compressing device; the two roller assemblies are arranged on the pressing device shell, and the circumferential included angle of the two roller assemblies along the central shaft is 180 degrees; the roller assembly comprises a roller, a roller bracket, a telescopic rod, a roller bearing and a roller shaft; the roller is fixed on the roller shaft; the roller shaft is supported on the roller bracket through two roller bearings; an axial retainer ring is arranged between the roller bearing and the roller bracket to axially position the roller bearing; the telescopic rod is fixed with the roller bracket and forms a revolute pair with a slideway arranged on the shell of the pressing device, and the inner end of the slideway of the shell of the pressing device is communicated with the hydraulic cavity; the inner end of the telescopic rod is provided with a spherical groove; both ends of the side surface of the roller are conical surfaces.
Preferably, a plurality of rectangular grooves are formed in inward half hole walls of two supporting holes for supporting two ends of the roller shaft on the roller support, and two ends of a spring arranged in the rectangular grooves are respectively in contact with the bottoms of the rectangular grooves and the outer ring of the roller bearing.
Preferably, the motor and the hydraulic device are both electrically connected with and controlled by the controller.
Preferably, the end cover of the pressing device is provided with an interface connected with an oil supply pipe and an oil return pipe of the hydraulic device, and the hydraulic device is supplied with oil by a pump.
The invention has the beneficial effects that:
the rotary motion of the pressing device is realized by hydraulically driving the pressing device; through installing closing device on drive car, realized closing device's axial motion for closing device can be spiral motion, and realized expansion and compress tightly to the bushing pipe through the roller assembly in the closing device, finally realize two roller assemblies and extrude gradually to the bushing pipe inner wall along two helix orbit small areas, thereby accomplish the preparation of composite conduit, avoided current operation method to the inhomogeneous or to the lining pipe structure cause destruction scheduling problem of pipeline atress that the synchronous extrusion of big block area of bushing pipe caused. Furthermore, the spherical groove at the inner end of the telescopic rod is more favorable for stable hydraulic driving, so that more stable pressing force is applied to the inner wall of the lining pipe. The two ends of the side surface of the roller are conical surfaces, so that the lining pipe can be gradually compressed, the inner diameter of the composite pipe is gradually enlarged, and the stress uniformity in the extrusion process of the composite pipe is further improved. Therefore, the invention can realize continuous operation, and has stable operation process, low preparation cost and high production efficiency.
Drawings
FIG. 1 is an assembled view of a pipe expanding apparatus according to the present invention;
FIG. 2 is an assembled view of the adjustment mechanism of the present invention;
FIG. 3 is a front view showing the construction of a drive vehicle according to the present invention;
FIG. 4 is a rear structural view of the drive vehicle of the present invention;
FIG. 5 is a schematic view of the assembly of the compression unit of the present invention;
FIG. 6 is a schematic view of the assembly of the roller assembly of the present invention;
FIG. 7 is a perspective view of the construction of the roller assembly of the present invention;
fig. 8 is a schematic diagram of the operation of the pressing device of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
A method for preparing a mechanical composite pipeline based on hydraulic drive specifically comprises the following steps:
as shown in fig. 1 and 8, the pipe expanding device is placed inside the inner lining pipe 9 to be expanded, the adjusting mechanism of the driving vehicle in the pipe expanding device is adjusted, the wheels on the three folding and unfolding components which are uniformly distributed along the circumferential direction are all pressed against the inner lining pipe 9, and the driving vehicle and the inner lining pipe are ensured to be coaxially arranged; then, starting a motor 17 on wheels of the driving vehicle to drive the driving vehicle to move forward, and driving the pressing device of the pipe expanding equipment to synchronously move forward by the driving vehicle; meanwhile, the hydraulic device is started to supply oil to the inside of the pressing device, the pressing device presses the inner lining pipe 9 and starts to rotate under the driving of the oil pressure, so that the pressing device gradually completes expansion of the inner lining pipe in the spiral motion process of linear forward motion and rotation motion combination, the inner lining pipe 9 and the carbon steel pipe 8 are deformed until the carbon steel pipe 8 contacts the outer mould 7 for pipeline shaping, and the preparation of the composite pipeline is completed.
As a preferred embodiment, the process of adjusting the radial position of the wheel by the driving vehicle through the adjusting mechanism is as follows:
as shown in fig. 2, because the two ends of the threaded rod 20 have opposite screw directions, the threaded rod 20 in the adjusting mechanism is rotated, so that the left-handed nut 10 and the right-handed nut 24 which respectively form screw pairs with the two ends of the threaded rod 20 move oppositely on the threaded rod 20, and therefore, three folding and unfolding assemblies which are uniformly distributed along the circumferential direction of the driving vehicle and connected with the left-handed nut 10 and the right-handed nut 24 are synchronously unfolded until the wheels 18 of the three folding and unfolding assemblies are all abutted against the lining pipe 9; the unfolding process of the folding and unfolding component is as follows: the distance between the two support rods 11 respectively fixed with the left-handed nut 10 and the right-handed nut 24 is reduced, and the two support rods 11 drive the wheel carrier 15 to extend outwards through the two connecting rods 14 to push the wheels 18 to abut against the lining pipe 9; due to the self-locking characteristic of the threads, the wheels of the three folding and unfolding assemblies are stable against the lining pipe 9 and cannot be pressed back, so that the stable walking of the driving vehicle is guaranteed.
As shown in fig. 3 and 4, the driving vehicle includes, in addition to the adjusting mechanism and the folding and unfolding assembly, a driving vehicle housing 3, a driving vehicle front end cover 26 and a driving vehicle rear end cover 25; the front end cover 26 and the rear end cover 25 of the driving vehicle are fixed at two ends of the driving vehicle shell 3 through bolts 27; two ends of the threaded rod 20 and round holes formed in the front end cover 26 and the rear end cover 25 of the driving vehicle respectively form a revolute pair; one of the hold-down device end caps 2 of the hold-down device is fixed to the front end cap 26 of the drive vehicle.
As a preferred embodiment, as shown in fig. 2, in the folding and unfolding assembly, two support rods 11 are respectively fixed on a left-handed nut 10 and a right-handed nut 24, and are respectively fixed with two rod sleeves 12; two short pins 13 fixed at one end of two side link rods 14 are respectively supported on a corresponding rod sleeve 12 through a bearing I21; the other ends of the two side link rods 14 and the wheel carrier 15 form a composite hinge through a long pin 19; the two optical axes are supported on the wheel carrier 15 through a second bearing 16 and are respectively driven by two motors 17; the two wheels 18 are fixed on two optical axes.
As a preferred embodiment, as shown in fig. 2, the adjustment mechanism comprises, in addition to the threaded rod 20, the left-hand nut 10 and the right-hand nut 24, a handle shaft 22 and a handle 23; a handle shaft 22 is fixed on the threaded rod 20; the handle 23 is fixed to the handle shaft 22.
As a more preferable embodiment, three rectangular grooves are uniformly distributed along the circumferential direction on the driving vehicle housing 3, and the three folding and unfolding assemblies respectively pass through the corresponding rectangular grooves.
As a preferred embodiment, the process of supplying oil to the interior of the pressing device and driving the pressing device to move by the hydraulic device is as follows:
starting the hydraulic device, feeding oil into the interior of the compacting device shell 1, and driving the two roller assemblies 6 to extend outwards relative to the compacting device shell 1 under the driving of oil pressure and to abut against the lining pipe 9 as shown in fig. 8; meanwhile, the oil drives the pressing device shell 1 and the two roller assemblies 6 to synchronously rotate through the spiral line grooves in the pressing device shell 1.
As a preferred embodiment, as shown in fig. 5, 6 and 7, the pressing device comprises two roller assemblies 6, a pressing device end cover 2, a central shaft 4 and a liquid sealing ring 5; the central shaft 4 and the pressing device shell 1 form a revolute pair; the two pressing device end covers 2 are fixed at two ends of the central shaft 4; the space between the end cover 2 of the pressing device, the central shaft 4 and the shell 1 of the pressing device is a hydraulic cavity; a liquid sealing ring 5 is arranged between the pressing device end cover 2 and the pressing device shell 1, so that the sealing performance of the hydraulic cavity is ensured; the two roller assemblies 6 are arranged on the pressing device shell 1, and the circumferential included angle of the two roller assemblies 6 along the central shaft 4 is 180 degrees; the roller assembly 6 comprises a roller 6-1, a roller bracket 6-3, a telescopic rod 6-4, a roller bearing 6-5 and a roller shaft 6-6; the roller 6-1 is fixed on the roller shaft 6-6; the roller shaft 6-6 is supported on the roller bracket 6-3 through two roller bearings 6-5; an axial retainer ring 6-2 is arranged between the roller bearing 6-5 and the roller bracket 6-3 to axially position the roller bearing 6-5; the telescopic rod 6-4 is fixed with the roller bracket 6-3 and forms a revolute pair with a slideway arranged on the pressing device shell 1, and the inner end of the slideway of the pressing device shell 1 is communicated with the hydraulic cavity; the inner end of the telescopic rod 6-4 is provided with a spherical groove, which is more favorable for stable hydraulic driving, so that more stable pressing force is applied to the inner wall of the lining tube 9; the two ends of the side surface of the roller 6-1 are conical surfaces, and the function of gradually compressing the lining pipe 9 and gradually expanding the inner diameter of the composite pipe can be achieved, so that the stress uniformity in the extrusion process of the composite pipe is further improved.
As a more preferable embodiment, a plurality of rectangular grooves are formed in the inward half hole walls of two supporting holes which are formed in the roller support 6-3 and used for supporting the two ends of the roller shaft 6-6, the two ends of a spring which is arranged in each rectangular groove are respectively in contact with the bottom of each rectangular groove and the outer ring of the roller bearing 6-5, and the spring can set pretightening force for the roller shaft 6-6, so that the extrusion force of the roller assembly 6 on the composite pipeline is more stable.
As a more preferred embodiment, the motor 17 and the hydraulic device are electrically connected to and controlled by a controller.
As a more preferable embodiment, the end cover 2 of the pressing device is provided with an interface connected with an oil supply pipe and an oil return pipe of a hydraulic device, and the hydraulic device is supplied with oil by a pump.
Claims (10)
1. A method for preparing a mechanical composite pipeline based on hydraulic drive is characterized by comprising the following steps: the method comprises the following specific steps:
arranging pipe expanding equipment inside an inner lining pipe to be expanded, adjusting an adjusting mechanism of a driving vehicle in the pipe expanding equipment, enabling wheels on three folding and unfolding components uniformly distributed along the circumferential direction to be abutted on the inner lining pipe, and ensuring that the driving vehicle and the inner lining pipe are coaxially arranged; then, starting a motor on wheels of the driving vehicle to drive the driving vehicle to move forward, and driving the pressing device of the pipe expanding equipment to synchronously move forward by the driving vehicle; and simultaneously, starting a hydraulic device to supply oil to the inside of the pressing device, pressing the lining pipe by the pressing device under the driving of the oil pressure, and starting rotary motion, so that the pressing device gradually completes expansion of the lining pipe in a spiral motion process combining linear forward motion and rotary motion, the lining pipe and the carbon steel pipe deform until the carbon steel pipe contacts a pipeline shaping outer mold, and the preparation of the composite pipeline is completed.
2. The method for preparing the mechanical composite pipeline based on hydraulic driving according to claim 1, is characterized in that: the process that the driving vehicle adjusts the radial position of the wheel through the adjusting mechanism is as follows:
because the spiral directions of the two ends of the threaded rod are opposite, the threaded rod in the adjusting mechanism is rotated, so that a left-handed nut and a right-handed nut which respectively form a spiral pair with the two ends of the threaded rod move oppositely on the threaded rod, three folding and unfolding components which are connected with the left-handed nut and the right-handed nut and are uniformly distributed along the circumferential direction of the driving vehicle are synchronously unfolded, and wheels of the three folding and unfolding components are pressed against the lining pipe; the unfolding process of the folding and unfolding component is as follows: the distance between the two support rods respectively fixed with the left-handed nut and the right-handed nut is reduced, and the two support rods drive the wheel carrier to extend outwards through the two connecting rods to push the wheel to abut against the lining pipe.
3. The method for preparing the mechanical composite pipeline based on hydraulic driving according to claim 2 is characterized in that: in the folding and unfolding component, two support rods are respectively fixed on a left-handed nut and a right-handed nut and are respectively fixed with two rod sleeves; two short pins fixed at one end of the two side link rods are respectively supported on the corresponding rod sleeve through a bearing I; the other ends of the two side link rods and the wheel carrier form a composite hinge through long pins; the two optical axes are supported on the wheel carrier through a second bearing and are respectively driven by two motors; the two wheels are fixed on two optical axes.
4. The method for preparing the mechanical composite pipeline based on the hydraulic drive according to the claim 1, 2 or 3, is characterized in that: the adjusting mechanism comprises a threaded rod, a left-handed nut and a right-handed nut, and also comprises a handle shaft and a handle; the handle shaft is fixed on the threaded rod; the handle is fixed on the handle shaft.
5. The method for preparing the mechanical composite pipeline based on the hydraulic drive according to the claim 1, 2 or 3, is characterized in that: the driving vehicle comprises a driving vehicle shell; three rectangular channels which are uniformly distributed along the circumferential direction are formed in the driving vehicle shell, and the three folding and unfolding assemblies respectively penetrate through the corresponding rectangular channels.
6. The method for preparing the mechanical composite pipeline based on hydraulic driving according to claim 1, is characterized in that: the process that the hydraulic device supplies oil to the inside of the pressing device in the pipe expanding equipment and drives the pressing device to move is as follows:
starting a hydraulic device, feeding oil into the interior of a shell of the pressing device, and driving the two roller assemblies to extend outwards relative to the shell of the pressing device under the driving of oil pressure and to be pressed against the lining pipe; meanwhile, the oil drives the pressing device shell and the two roller assemblies to synchronously rotate through the spiral line grooves in the pressing device shell.
7. The method for preparing the mechanical composite pipeline based on hydraulic driving according to claim 6, is characterized in that: the pressing device comprises two roller assemblies, and also comprises a pressing device end cover, a central shaft and a liquid sealing ring; the central shaft and the pressing device shell form a revolute pair; the two pressing device end covers are fixed at the two ends of the central shaft; the space among the end cover of the pressing device, the central shaft and the shell of the pressing device is a hydraulic cavity; a liquid sealing ring is arranged between the end cover of the compressing device and the shell of the compressing device; the two roller assemblies are arranged on the pressing device shell, and the circumferential included angle of the two roller assemblies along the central shaft is 180 degrees; the roller assembly comprises a roller, a roller bracket, a telescopic rod, a roller bearing and a roller shaft; the roller is fixed on the roller shaft; the roller shaft is supported on the roller bracket through two roller bearings; an axial retainer ring is arranged between the roller bearing and the roller bracket to axially position the roller bearing; the telescopic rod is fixed with the roller bracket and forms a revolute pair with a slideway arranged on the shell of the pressing device, and the inner end of the slideway of the shell of the pressing device is communicated with the hydraulic cavity; the inner end of the telescopic rod is provided with a spherical groove; both ends of the side surface of the roller are conical surfaces.
8. The method for preparing the mechanical composite pipeline based on the hydraulic drive according to claim 7 is characterized in that: a plurality of rectangular grooves are formed in the inward half hole walls of two supporting holes for supporting the two ends of the roller shaft on the roller support, and the two ends of a spring arranged in the plurality of rectangular grooves are respectively in contact with the bottom of the rectangular groove and the outer ring of the roller bearing.
9. The method for preparing the mechanical composite pipeline based on hydraulic driving according to claim 1, is characterized in that: the motor and the hydraulic device are both electrically connected with the controller and are controlled by the controller.
10. The method for preparing the mechanical composite pipeline based on the hydraulic drive according to claim 7 is characterized in that: the end cover of the pressing device is provided with an interface connected with an oil supply pipe and an oil return pipe of the hydraulic device, and the hydraulic device is supplied with oil by a pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111451300.8A CN114055770A (en) | 2021-12-01 | 2021-12-01 | Mechanical composite pipeline preparation method based on hydraulic drive |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111451300.8A CN114055770A (en) | 2021-12-01 | 2021-12-01 | Mechanical composite pipeline preparation method based on hydraulic drive |
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| CN114055770A true CN114055770A (en) | 2022-02-18 |
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| CN202111451300.8A Pending CN114055770A (en) | 2021-12-01 | 2021-12-01 | Mechanical composite pipeline preparation method based on hydraulic drive |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11724301B1 (en) * | 2022-05-16 | 2023-08-15 | VAMMI S.r.l. | Expander of tubular assembly |
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| WO2017219452A1 (en) * | 2016-06-22 | 2017-12-28 | 深圳市樊溪电子有限公司 | Sticking engagement apparatus for repairing pipeline |
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| CN109253342A (en) * | 2018-11-13 | 2019-01-22 | 安徽理工大学 | A kind of pipe walking robot |
| CN112097008A (en) * | 2020-09-16 | 2020-12-18 | 西南石油大学 | Lining composite pipe shape-modifying robot |
| CN216540550U (en) * | 2021-12-01 | 2022-05-17 | 杭州电子科技大学 | Hydraulic drive's compound pipeline preparation facilities of mechanical type |
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2021
- 2021-12-01 CN CN202111451300.8A patent/CN114055770A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017219452A1 (en) * | 2016-06-22 | 2017-12-28 | 深圳市樊溪电子有限公司 | Sticking engagement apparatus for repairing pipeline |
| CN107504319A (en) * | 2017-07-20 | 2017-12-22 | 西安理工大学 | A kind of spiral driving pipe robot |
| CN108869947A (en) * | 2018-08-23 | 2018-11-23 | 国家电网有限公司 | A kind of cable preheating embedding line expansion robot |
| CN109253342A (en) * | 2018-11-13 | 2019-01-22 | 安徽理工大学 | A kind of pipe walking robot |
| CN112097008A (en) * | 2020-09-16 | 2020-12-18 | 西南石油大学 | Lining composite pipe shape-modifying robot |
| CN216540550U (en) * | 2021-12-01 | 2022-05-17 | 杭州电子科技大学 | Hydraulic drive's compound pipeline preparation facilities of mechanical type |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11724301B1 (en) * | 2022-05-16 | 2023-08-15 | VAMMI S.r.l. | Expander of tubular assembly |
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