Ring cutting device for pipeline installation

Abstract

The utility model relates to the technical field of pipeline girdling devices, and discloses a girdling device for pipeline installation, which comprises a connecting beam, one side of the connecting beam is fixedly connected with a C-shaped ring-shaped limiting table, the C-shaped ring-shaped limiting table is provided with a ring-shaped limiting groove, and the inner side of the ring-shaped limiting groove is rotatably connected with a C-shaped gear ring. A C-shaped gear ring is arranged on the upper portion of the connecting beam, a cutting knife mechanism used for cutting a pipeline is arranged on one side of the C-shaped gear ring, a gear ring driving mechanism used for enabling the C-shaped gear ring to rotate is arranged above the connecting beam, and a pipeline positioning mechanism used for conducting self-centering clamping on the pipeline is arranged on the other side of the connecting beam. And a worker can conveniently clamp a pipeline at any position, and high practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline ring cutting devices, in particular to a ring cutting device for pipeline installation. Background Art

[0002] When installing and laying pipelines, it is often necessary to temporarily adjust the size of the pipeline according to the specific scene on site. At this time, it is necessary to rely on special pipeline ring cutting equipment to cut the pipeline. The main components of the existing pipeline cutting device are mainly composed of a base, a drive device, a transmission device, a positioning device, a cutter device, a control system, etc. That is, the pipe to be processed is first placed in the positioning device, and the control system controls the rotation of the host and the movement of the cutting device to achieve the cutting of the pipe. During the cutting process, the host drives the cutter device to move along the axial direction of the pipe through the transmission device, so that the cutting tool rotates and cuts along the pipe. However, this type of pipeline ring cutting device currently has the following technical problems in actual production scenarios:

[0003] 1. Installation and connection are difficult. In actual pipeline installation and cutting scenarios, the pipeline to be cut is often very long from one end. The method of first sleeve connection and then positioning and clamping the pipeline is very troublesome and brings inconvenience to the construction.

[0004] 2. Inaccurate positioning and clamping. To ensure the accuracy and reliability of pipe circumferential cutting and avoid tool damage, the pipe needs to be installed in the center of the circumferential cutting device, that is, to ensure that the distance between the cutting tool and the circumferential pipe wall is always the same. If the positioning fixture of the circumferential cutting device is offset, it may cause many safety hazards.

[0005] In summary, a pipe installation ring cutting device is proposed which can solve the above problems. Utility Model Content

[0006] In order to solve the technical problem of pipeline ring cutting devices, the utility model provides a ring cutting device for pipeline installation.

[0007] The utility model is implemented by the following technical scheme: a ring cutting device for pipeline installation, comprising a connecting beam, one side of the connecting beam is fixedly connected with a C-ring type limit platform, the C-ring type limit platform is provided with an annular limit groove, the inner side of the annular limit groove is rotatably connected with a C-shaped gear ring, one side of the C-shaped gear ring is provided with a cutting knife mechanism for cutting the pipeline, the upper part of the connecting beam is provided with a gear ring driving mechanism for rotating the C-shaped gear ring, and the other side of the connecting beam is provided with a pipeline positioning mechanism for self-centering clamping the pipeline.

[0008] As a further improvement of the above scheme, the cutting knife mechanism includes a bracket fixedly connected to one side of the C-shaped gear ring, the upper end of the bracket is fixedly connected to a limiting cylinder, a laser cutting kit is arranged on the inner side of the limiting cylinder, and a laser kit positioning mechanism is arranged on the outer side of the limiting cylinder for facilitating adjustment of the position of the laser cutting kit in the limiting cylinder.

[0009] As a further improvement of the above solution, the laser kit positioning mechanism includes a positioning nut threadedly sleeved on the outer side of the limiting cylinder, and one end of the positioning nut passes through the side wall of the limiting cylinder and abuts against the outer side of the laser cutting kit.

[0010] As a further improvement of the above scheme, the gear ring driving mechanism includes a horizontal platform fixedly connected to one side of the connecting beam, a fixed plate fixedly connected to the upper side of the horizontal platform, one side of the fixed plate is rotatably connected to two sprockets in turn, a chain belt is arranged between the two sprockets, and one side of the two sprockets is respectively provided with a gear ring transition mechanism for driving the C-shaped gear ring to rotate and transition smoothly.

[0011] As a further improvement of the above scheme, the gear ring transition mechanism includes a No. 1 gear and a No. 2 gear which are respectively fixedly connected to one side of the two sprockets, and the No. 1 gear and the No. 2 gear are respectively meshed with the C-shaped gear ring. The distance between the No. 1 gear and the No. 2 gear is greater than the width distance of the notch of the C-shaped gear ring, and a sprocket drive mechanism for rotating the sprocket is provided on the upper side of the horizontal platform.

[0012] As a further improvement of the above solution, the sprocket drive mechanism includes a No. 2 motor fixedly connected to the upper side of the horizontal platform, and the output end of the No. 2 motor is connected to the sprocket near the side of the No. 2 motor.

[0013] As a further improvement of the above-mentioned scheme, the pipeline positioning mechanism includes a slot opened on the lower side of the horizontal platform, and two sliders are slidably connected to the inner side of the slot in sequence, and the lower sides of the two sliders are fixedly connected with connecting plates, and the lower ends of the two connecting plates are fixedly connected with composite rubber pads, one of the composite rubber pads is provided with a bolt, and one side of the horizontal platform is provided with a rubber pad driving mechanism for making the two composite rubber pads approach or move away from each other.

[0014] As a further improvement of the above scheme, the rubber pad driving mechanism is a bidirectional threaded rod that is threadedly sleeved with two sliders. The bidirectional threaded rod is rotatably connected to the horizontal table. A No. 1 motor is fixedly connected to the outer side of the horizontal table. The output end of the No. 1 motor is fixedly connected to one end of the bidirectional threaded rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The utility model cooperates with the toothed ring driving mechanism and the C-shaped toothed ring, and can directly enter the pipe to be cut through the gap of the C-shaped toothed ring. It needs to be inserted from the pipe port. The operation of the pipe ring cutting device is very simple and convenient for the staff to operate and use.

[0017] 2. The utility model cooperates with the pipeline positioning mechanism and the rubber pad driving mechanism, so that the two composite rubber pads can directly clamp and fix the pipeline from both sides. After the pipeline is positioned, the central axis of the pipeline coincides with the center point of the C-shaped tooth ring of the ring cutting device for pipeline installation, making the pipeline positioning more accurate and efficient, which can not only improve the accuracy of pipeline cutting, but also avoid some safety hazards in operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A front view of a ring cutting device for pipeline installation provided by the utility model;

[0019] Figure 2 for Figure 1 A top view of

[0020] Figure 3 for Figure 1 Bottom view of

[0021] Figure 4 It is an explosion diagram of the utility model.

[0022] Description of main symbols:

[0023] 1. C-ring limit table; 2. C-shaped gear ring; 3. Annular limit groove; 4. Positioning nut; 5. Laser cutting kit; 6. Limit cylinder; 7. Bracket; 8. No. 1 motor; 9. No. 1 gear; 10. Fixed plate; 11. Chain belt; 12. No. 2 motor; 13. No. 2 gear; 14. Connecting plate; 15. Composite rubber pad; 16. Sprocket; 17. Cross table; 18. Bolt; 19. Slider; 20. Bidirectional threaded rod; 21. Slot; 22. Connecting beam. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0025] Example:

[0026] Please combine Figure 1-Figure 4A circular cutting device for pipeline installation in this embodiment includes a connecting beam 22, one side of the connecting beam 22 is fixedly connected to a C-ring limit platform 1, an annular limit groove 3 is opened on the C-ring limit platform 1, the inner side of the annular limit groove 3 is rotatably connected to a C-shaped gear ring 2, one side of the C-shaped gear ring 2 is provided with a cutting knife mechanism for cutting the pipeline, a gear ring driving mechanism for rotating the C-shaped gear ring 2 is provided above the connecting beam 22, and a pipeline positioning mechanism for self-centering clamping of the pipeline is provided on the other side of the connecting beam 22, when the C-shaped gear ring 2 can complete a complete circular motion along the annular limit groove 3, it can ensure a circular cutting operation without leaving a dead angle on the pipeline.

[0027] Please combine Figure 1 As shown, the cutting knife mechanism includes a bracket 7 fixedly connected to one side of the C-shaped gear ring 2, the upper end of the bracket 7 is fixedly connected to a limiting cylinder 6, a laser cutting kit 5 is arranged on the inner side of the limiting cylinder 6, and a laser kit positioning mechanism is arranged on the outer side of the limiting cylinder 6 for facilitating adjustment of the position of the laser cutting kit 5 in the limiting cylinder 6.

[0028] Please combine Figure 1 As shown, the laser kit positioning mechanism includes a positioning nut 4 threadedly sleeved on the outer side of the limiting cylinder 6, one end of the positioning nut 4 passes through the side wall of the limiting cylinder 6 and abuts against the outer side of the laser cutting kit 5. Due to the different diameters of different pipes, by adjusting the distance between the laser emission point of the laser cutting kit 5 and the pipe wall, the installation distance of the laser cutting kit 5 in different scenarios can be more flexibly controlled.

[0029] Please combine Figure 2 As shown, the gear ring driving mechanism includes a horizontal platform 17 fixedly connected to one side of the connecting beam 22, a fixed plate 10 is fixedly connected to the upper side of the horizontal platform 17, one side of the fixed plate 10 is rotatably connected to two sprockets 16 in turn, a chain belt 11 is arranged between the two sprockets 16, and one side of the two sprockets 16 is respectively provided with a gear ring transition mechanism for driving the C-shaped gear ring 2 to rotate and transition smoothly.

[0030] Please combine Figure 2 As shown, the gear ring transition mechanism includes a No. 1 gear 9 and a No. 2 gear 13 respectively fixedly connected to one side of two sprockets 16, the No. 1 gear 9 and the No. 2 gear 13 are respectively meshed with the C-shaped gear ring 2, the distance between the No. 1 gear 9 and the No. 2 gear 13 is larger than the width distance of the gap of the C-shaped gear ring 2, and a sprocket drive mechanism for rotating the sprocket 16 is provided on the upper side of the horizontal platform 17. It should be noted that only when the distance between the No. 1 gear 9 and the No. 2 gear 13 is larger than the width distance of the gap of the C-shaped gear ring 2 can the C-shaped gear ring 2 be ensured to smoothly transition between the No. 1 gear 9 and the No. 2 gear 13, and the whole process can produce a driving effect.

[0031] Please combine Figure 2As shown, the sprocket drive mechanism includes a No. 2 motor 12 fixedly connected to the upper side of the horizontal platform 17 , and the output end of the No. 2 motor 12 is connected to a sprocket 16 close to one side of the No. 2 motor 12 .

[0032] Please combine Figure 3 As shown, the pipeline positioning mechanism includes a slot 21 opened on the lower side of the horizontal platform 17, and two sliders 19 are slidably connected to the inner side of the slot 21 in sequence, and the lower sides of the two sliders 19 are fixedly connected to a connecting plate 14, and the inner sides of the two sliders 19 are provided with internal threads, and the lower ends of the two connecting plates 14 are fixedly connected to a composite rubber pad 15, one of the composite rubber pads 15 is provided with a bolt 18, and one side of the horizontal platform 17 is provided with a rubber pad driving mechanism for making the two composite rubber pads 15 approach or move away from each other, and the wear-resistant and high friction properties of the composite rubber pad 15 are utilized to improve the gripping effect between the composite rubber pad 15 and the pipeline.

[0033] Please combine Figure 2 As shown, the rubber pad driving mechanism and the two sliders 19 are threadedly connected to a bidirectional threaded rod 20, the bidirectional threaded rod 20 is rotatably connected to the horizontal platform 17, and a No. 1 motor 8 is fixedly connected to the outer side of the horizontal platform 17, and the output end of the No. 1 motor 8 is fixedly connected to one end of the bidirectional threaded rod 20.

[0034] The implementation principle of a circular cutting device for pipeline installation in the embodiment of the present application is as follows: the staff first inserts into the outside of the pipeline through the gap of the C-shaped gear ring 2, and then starts the No. 1 motor 8 to drive the bidirectional threaded rod 20 to rotate, and then pushes the two sliders 19 to approach each other along the slot 21, and indirectly drives the connecting plate 14 to approach each other, so that the two composite rubber pads 15 clamp and fix the outer wall of the pipeline. After positioning the pipeline, start the No. 2 motor 12, and drive the two sprockets 16 to rotate at the same time through the chain belt 11. Since the sprocket 16 is fixedly connected to the No. 1 gear 9 and the No. 2 gear 13, the C-shaped gear ring 2 is meshed and driven by the No. 1 gear 9 and the No. 2 gear 13, and the C-shaped gear ring 2 is driven to rotate along the annular limit groove 3 of the C-ring limit platform. At this time, since the bracket 7 is fixed to the side surface of the C-shaped gear ring 2, the laser cutting kit 5 can perform circular cutting on the pipeline in the form of a circular motion on the periphery of the pipeline.

[0035] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A ring cutting device for pipeline installation, comprising a connecting beam (22), characterized in that: A C-shaped ring-shaped limit platform (1) is fixedly connected to one side of the connecting beam (22), an annular limit groove (3) is provided on the C-shaped ring-shaped limit platform (1), a C-shaped toothed ring (2) is rotatably connected to the inner side of the annular limit groove (3), a cutting knife mechanism for cutting the pipeline is provided on one side of the C-shaped toothed ring (2), a toothed ring driving mechanism for rotating the C-shaped toothed ring (2) is provided above the connecting beam (22), and a pipeline positioning mechanism for self-centering and clamping the pipeline is provided on the other side of the connecting beam (22).

2. A pipe installation ring cutting device as claimed in claim 1, characterized in that: The cutting knife mechanism comprises a bracket (7) fixedly connected to one side of the C-shaped gear ring (2); the upper end of the bracket (7) is fixedly connected to a limiting cylinder (6); a laser cutting kit (5) is arranged on the inner side of the limiting cylinder (6); and a laser kit positioning mechanism for facilitating adjustment of the position of the laser cutting kit (5) in the limiting cylinder (6) is arranged on the outer side of the limiting cylinder (6).

3. A pipe installation ring cutting device as claimed in claim 2, characterized in that: The laser kit positioning mechanism comprises a positioning nut (4) threadedly sleeved on the outer side of the limiting cylinder (6); one end of the positioning nut (4) passes through the side wall of the limiting cylinder (6) and abuts against the outer side of the laser cutting kit (5).

4. A pipe installation ring cutting device as claimed in claim 1, characterized in that: The gear ring driving mechanism comprises a horizontal platform (17) fixedly connected to one side of the connecting beam (22); a fixed plate (10) is fixedly connected to the upper side of the horizontal platform (17); one side of the fixed plate (10) is rotatably connected to two sprocket wheels (16) in sequence; a chain belt (11) is arranged between the two sprocket wheels (16); and one side of the two sprocket wheels (16) is respectively provided with a gear ring transition mechanism for driving the C-shaped gear ring (2) to rotate and smoothly transition.

5. A pipe installation ring cutting device as claimed in claim 4, characterized in that: The gear ring transition mechanism comprises a first gear (9) and a second gear (13) respectively fixedly connected to one side of two sprocket wheels (16); the first gear (9) and the second gear (13) are respectively meshed with the C-shaped gear ring (2); the distance between the first gear (9) and the second gear (13) is greater than the width of the notch of the C-shaped gear ring (2); and a sprocket drive mechanism for rotating the sprocket wheel (16) is arranged on the upper side of the horizontal platform (17).

6. A pipe installation ring cutting device as claimed in claim 5, characterized in that: The sprocket drive mechanism comprises a No. 2 motor (12) fixedly connected to the upper side of the horizontal platform (17), and an output end of the No. 2 motor (12) is connected to a sprocket (16) close to one side of the No. 2 motor (12).

7. A pipe installation ring cutting device as claimed in claim 1, characterized in that: The pipeline positioning mechanism comprises a slot (21) provided at the lower side of a horizontal platform (17), two sliders (19) are slidably connected in sequence to the inner side of the slot (21), the lower sides of the two sliders (19) are fixedly connected to connecting plates (14), the lower ends of the two connecting plates (14) are fixedly connected to composite rubber pads (15), one of the composite rubber pads (15) is provided with a bolt (18), and a rubber pad driving mechanism for moving the two composite rubber pads (15) closer to or farther away from each other is provided on one side of the horizontal platform (17).

8. A pipe installation ring cutting device as claimed in claim 7, characterized in that: The rubber pad driving mechanism and the two sliders (19) are threadedly sleeved with a bidirectional threaded rod (20), the bidirectional threaded rod (20) is rotatably connected to the horizontal platform (17), a No. 1 motor (8) is fixedly connected to the outer side of the horizontal platform (17), and the output end of the No. 1 motor (8) is fixedly connected to one end of the bidirectional threaded rod (20).

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