Online outer weld joint coping device and production line for spiral anti-corrosion pipe

Abstract

The utility model relates to a spiral anti-corrosion pipe on-line outer welding seam coping device which comprises a first power rotating roller way and a second power rotating roller way, a grinding mechanism is arranged on one side of the area between the first power rotating roller way and the second power rotating roller way, and the grinding mechanism comprises a lifting assembly. A lifting part of the lifting assembly is connected with a horizontal two-shaft linkage assembly, the horizontal two-shaft linkage assembly is connected with the polishing assembly, and the polishing device reduces waste of polyethylene and is suitable for being used in a production line.

Description

TECHNICAL FIELD

[0001] The utility model relates to spiral anticorrosion pipe production equipment technical field, concretely relates to a kind of spiral anticorrosion pipe online outer weld dressing device and production line. BACKGROUND

[0002] The statements herein provide only background information related to the utility model and do not necessarily constitute the prior art.

[0003] When producing natural gas spiral anticorrosion steel pipe, the weld has a certain height. In order to ensure the thickness of the polyethylene at the weld, it is necessary to wind polyethylene, which causes waste of polyethylene. For example, when the weld excess height is 2.4 mm, in order to ensure the polyethylene thickness of 2.56 mm at the weld, 4.2 mm of polyethylene needs to be wound, which causes a large amount of polyethylene waste. Therefore, the weld needs to be dressed to reduce the waste of polyethylene.

[0004] Patent CN212918869U discloses a pipe outer wall polishing equipment, which can be used for polishing the weld of natural gas anticorrosion steel pipe. The pipe is driven to rotate by the feeding mechanism. The above-mentioned polishing equipment can realize the polishing of the pipe weld. However, the feeding mechanism in the above-mentioned patent will hinder the movement of the pipe along its axis direction, thereby making the above-mentioned polishing equipment unable to be applied to the production line. When applied to the production line, additional pipe transfer equipment needs to be additionally set up, which increases the equipment investment. UTILITY MODEL CONTENT

[0005] The utility model aims to overcome the shortcomings of the prior art and provide a spiral anticorrosion pipe online outer weld dressing device and spiral anticorrosion pipe production line, which can polish the weld and reduce the waste of polyethylene, and can be applied to the use of production line.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0007] In the first aspect, the embodiments of the utility model provide a spiral anticorrosion pipe online outer weld dressing device, which comprises a first power rotary roller and a second power rotary roller. One side of the area between the first power rotary roller and the second power rotary roller is provided with a polishing mechanism. The polishing mechanism comprises a lifting assembly. The lifting part of the lifting assembly is connected with a horizontal two-axis linkage assembly. The horizontal two-axis linkage assembly is connected with a polishing assembly.

[0008] Optionally, the lifting assembly comprises a support frame. The support frame is threadedly connected with a screw shaft arranged vertically along the axis. The top end of the screw shaft is rotationally connected with a lifting plate. The lifting plate is installed with a horizontal two-axis linkage assembly.

[0009] Or, the lifting assembly comprises a support frame, a vertical electric telescopic rod is installed on the support frame, the telescopic part of the electric telescopic rod is connected with the lifting plate, and the lifting plate is provided with a horizontal two-axis linkage assembly.

[0010] Optionally, the bottom end of the lifting plate is provided with a guide column, and the guide column is in sliding connection with a guide sleeve arranged on the support frame.

[0011] Optionally, the horizontal two-axis linkage assembly comprises a first horizontal moving mechanism, the output movement direction of the first horizontal moving mechanism is parallel to the linear conveying direction of the first power rotary roller and the second power rotary roller, the first horizontal moving mechanism is connected with a second horizontal moving mechanism, the output movement direction of the second horizontal moving mechanism is perpendicular to the output movement direction of the first horizontal moving mechanism, and the second horizontal moving mechanism is connected with a polishing assembly.

[0012] Optionally, the first horizontal moving mechanism adopts a lead screw transmission mechanism.

[0013] Optionally, the second horizontal moving mechanism adopts a lead screw transmission mechanism.

[0014] Optionally, the polishing assembly comprises a support plate, a power motor is installed on the support plate, the output shaft of the power motor is connected with a driving wheel, a driven wheel frame is further arranged on the support plate, the driven wheel frame is rotationally connected with a driven wheel, and the driven wheel and the driving wheel are wrapped with a polishing belt.

[0015] Optionally, the polishing belt adopts a brown fused alumina grinding belt.

[0016] Optionally, the driven wheel adopts a rubber wheel.

[0017] In the second aspect, the embodiment of the utility model provides a spiral anticorrosion pipe production line which is provided with the spiral anticorrosion pipe online outer weld joint polishing device.

[0018] The utility model has the advantages of the following:

[0019] 1. The spiral anticorrosion pipe online outer weld joint polishing device is provided with a first power rotary roller and a second power rotary roller, the first power rotary roller and the second power rotary roller can drive the pipeline to rotate and move linearly along the axis of the pipeline, a polishing mechanism is arranged on one side of the region between the first power rotary roller and the second power rotary roller, the polishing mechanism is provided with a polishing assembly, the polishing assembly can polish the weld joint of the pipeline, thereby reducing the weld joint allowance, greatly reducing the waste of polyethylene, reducing the production cost, the first power rotary roller and the second power rotary roller can drive the pipeline to move linearly, facilitating the receiving of the pipeline sent by the previous process and the sending of the pipeline to the next process, facilitating the installation on the production line, and being suitable for the use of the production line.

[0020] 2. The spiral anticorrosion pipe online outer weld grinding device of the utility model, be provided with lifting assembly and horizontal two axle linkage assembly, can adjust the position of polishing assembly, thereby satisfy the outer weld polishing demand of different specification pipeline, improve the applicability of whole device. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings accompanying the specification provide further understanding of the present application, serve as a further example of the present application, and explain the present application, but do not limit the present application.

[0022] Fig. 1 It is the whole structure schematic view of the utility model embodiment 1;

[0023] Fig. 2 It is the whole structure front view of the utility model embodiment 1;

[0024] Fig. 3 It is the whole structure side view of the utility model embodiment 1;

[0025] Fig. 4 It is the polishing structure schematic view of the utility model embodiment 1;

[0026] Fig. 5 It is the polishing mechanism front view of the utility model embodiment 1;

[0027] Fig. 6 It is the polishing mechanism side view of the utility model embodiment 1;

[0028] Wherein, 1. frame, 2. roller, 3. pipeline, 4. driving motor, 5. polishing mechanism, 6. weld;

[0029] 5-1. base, 5-2. support frame, 5-3. lead screw, 5-4. lifting plate, 5-5. guide column, 5-6. guide sleeve, 5-7. first horizontal movement mechanism, 5-8. power motor, 5-9. driving wheel, 5-10. driven wheel frame, 5-11. driven wheel, 5-12. polishing belt. DETAILED DESCRIPTION

[0030] Embodiment 1

[0031] The embodiment provides a spiral anticorrosion pipe online outer weld grinding device, as shown in Figs. 1-3As shown, the first power rotary roller and the second power rotary roller are arranged along the advancing direction of the pipeline, and are used to support the pipeline and drive the pipeline to rotate around its axis while moving linearly along its axis.

[0032] The first power rotary roller and the second power rotary roller have the same structure and can be obtained by using existing equipment, such as the roller tire and the roller base disclosed in patent CN215354199U. The first power rotary roller is taken as an example for description:

[0033] The first power rotary roller comprises a frame body 1, and a plurality of roller pairs are arranged on the frame body 1. In this embodiment, two roller pairs are arranged on the frame body, and the two roller pairs are distributed along the advancing direction of the pipeline. Each roller pair comprises two rollers 2 arranged oppositely, and the pipeline 3 is arranged between the two rollers. The rollers 2 are in contact with the pipeline 3 to support the pipeline 3.

[0034] The rollers 2 are rotationally connected to the frame body 1, and at least one roller 2 is connected to a power element mounted on the frame body 1. The power element can drive the connected roller to rotate.

[0035] In this embodiment, the two rollers of one of the two roller pairs are connected to a power element, and the power element drives the two rollers to rotate.

[0036] Preferably, the power element is a driving motor 4 mounted on the frame body 1, and the output shaft of the driving motor 4 is connected to the roller 2.

[0037] The roller 2 can drive the pipeline 3 to rotate while moving linearly along its axis.

[0038] The first power rotary roller and the second power rotary roller can be obtained by using existing equipment, and the further detailed structure is not described here.

[0039] A grinding mechanism 5 is arranged on one side of the area between the first power rotary roller and the second power rotary roller, and the grinding mechanism 5 can grind the pipeline supported by the first power rotary roller and the second power rotary roller.

[0040] As shown in the figure, Figs. 4-6 The grinding mechanism 5 comprises a lifting assembly, the lifting assembly is connected to a horizontal two-axis linkage assembly, and can drive the horizontal two-axis linkage assembly to move up and down. The horizontal two-axis linkage assembly is connected to a grinding assembly, and can drive the grinding assembly to move in the horizontal plane.

[0041] The lifting assembly comprises a base 5-1 fixed on the ground, and a support frame 5-2 connected to the base 5-1, wherein the support frame 5-2 comprises a top plate, and a stand is arranged at each corner of the top plate, and the bottom end of the stand is fixed to the base 5-1.

[0042] A threaded sleeve is arranged at the center of the top plate, and a lead screw 5-3 is threadedly connected to the threaded sleeve, and the axis of the lead screw 5-3 is vertically arranged, and the top end of the lead screw 5-3 is rotatably connected to the center of a lifting plate 5-4 through a bearing.

[0043] The lead screw 5-3 is rotated to drive the lifting plate 5-4 to move up and down.

[0044] In another embodiment, an electric telescopic rod is fixed to the top plate, the fixed part of the electric telescopic rod is fixed to the top plate, the telescopic part of the electric telescopic rod is connected to the lifting plate, and the electric telescopic rod can drive the lifting plate to move up and down.

[0045] Further, in order to ensure the stability of the lifting plate 5-4, a guide column 5-5 is arranged at each corner of the bottom surface of the lifting plate 5-4, and the guide column 5-5 passes through a guide sleeve 5-6 arranged on the top plate and is slidably connected to the guide sleeve 5-6.

[0046] A horizontal two-axis linkage assembly is arranged on the lifting plate 5-4, the horizontal two-axis linkage assembly comprises a first horizontal moving mechanism 5-7, the output movement direction of the first horizontal moving mechanism 5-7 is parallel to the straight line movement direction of the pipeline, the moving part of the first horizontal moving mechanism 5-7 is connected to a second horizontal moving mechanism 5-13, the output movement direction of the second horizontal moving mechanism is perpendicular to the output movement direction of the first horizontal moving mechanism 5-7, the second horizontal moving mechanism 5-13 is connected to a polishing assembly, and the second horizontal moving mechanism 5-13 can drive the polishing assembly to move towards or away from the pipeline.

[0047] In this embodiment, the first horizontal moving mechanism 5-7 and the second horizontal moving mechanism 5-13 both adopt a lead screw transmission mechanism, specifically, the first horizontal moving mechanism 5-7 comprises a first mounting seat connected to the lifting plate, a first lead screw rotatably connected to the first mounting seat, the axis of the first lead screw is parallel to the movement direction of the pipeline, a first sliding block threadedly connected to the first lead screw, the first sliding block is slidably connected to the first mounting seat, and the first sliding block is connected to the second horizontal moving mechanism.

[0048] Further, the end of the first lead screw is provided with a first handle, which facilitates the rotation of the first lead screw by the staff.

[0049] The second moving horizontal moving mechanism comprises a second mounting base fixed with the first sliding block, a second screw rod rotatably connected to the second mounting base, the second screw rod being perpendicular to the first screw rod, a second sliding block threadedly connected to the second screw rod, the second sliding block being slidably connected to the second mounting base, a support plate fixed with the second sliding block, and a polishing assembly fixed to an outer end of the support plate.

[0050] An end of the second screw rod is provided with a second handle, the second handle being arranged at an end of the second screw rod away from the pipeline, so as to facilitate the rotation of the second screw rod by a worker.

[0051] The polishing assembly comprises a power motor 5-8 fixed to an outer end of the support plate, an output shaft of the power motor 5-8 being connected to a driving wheel 5-9, a driven wheel frame 5-10 being arranged at an inner end of the support plate, a driven wheel 5-11 being rotatably connected to the driven wheel frame 5-10, and a polishing belt 5-12 being wound between the driving wheel 5-9 and the driven wheel 5-11, the polishing belt being used to contact the pipeline and polish the weld of the pipeline.

[0052] Preferably, the polishing belt 5-12 is a brown fused alumina polishing belt, and further, a brown fused alumina 40-mesh polishing belt.

[0053] Preferably, the driven wheel 5-11 is a rubber wheel.

[0054] The working method of the polishing device of the embodiment is as follows:

[0055] The position of the polishing assembly is adjusted in advance by the lifting assembly and the horizontal two-axis linkage assembly, so that the polishing belt 5-12 of the polishing assembly can contact the pipeline 3, the first power rotary roller and the second power rotary roller drive the pipeline to rotate and advance along its own axis at the same time, the polishing belt 5-12 contacts the weld 6 of the pipeline 3, and the weld 6 of the pipeline 3 is polished. Since the weld 6 of the pipeline 3 is a spiral weld, the pipeline 3 rotates around its own axis while advancing in a straight line, so that the polishing belt 5-12 can always contact the weld 6 and polish the weld 6.

[0056] The outer weld on-line polishing device of the embodiment greatly reduces the use of polyethylene, the polishing assembly can be moved towards or away from the pipeline by rotating the second handle, and the qualified polishing allowance is ensured.

[0057] The polishing device of the embodiment can adjust the position of the polishing assembly by the lifting assembly and the horizontal two-axis linkage assembly, so as to meet the polishing requirements of the outer weld of different specifications of pipelines and improve the applicability of the entire device.

[0058] Embodiment 2

[0059] The embodiment provides a spiral anticorrosion pipe production line, which is provided with the spiral anticorrosion pipe online outer welding seam grinding device in the embodiment 1, and the remaining equipment of the spiral anticorrosion pipe production line can adopt prior art, and details are not described herein.

[0060] Although the specific embodiments of the utility model have been described in combination with the drawings, it is not a limitation on the protection scope of the utility model, and those skilled in the art should understand that various modifications or deformations made by those skilled in the art on the basis of the technical scheme of the utility model without creative labor are still within the protection scope of the utility model.

Claims

1. An on-line external weld scarfing apparatus for helical corrosion resistant pipe comprising a first powered rotating roller and a second powered rotating roller, characterized in that, One side of the area between the first power rotary roller and the second power rotary roller is provided with a polishing mechanism, the polishing mechanism comprising a lifting assembly, a lifting part of the lifting assembly being connected with a horizontal two-axis linkage assembly, the horizontal two-axis linkage assembly being connected with a polishing assembly.

2. The on-line weld scarfing apparatus for helical corrosion-proof pipes according to claim 1, characterized in that, The lifting assembly comprises a support frame, the support frame being threadedly connected with a screw rod arranged vertically along an axis, a top end of the screw rod being rotatably connected with a lifting plate, the lifting plate being provided with the horizontal two-axis linkage assembly. Alternatively, the lifting assembly comprises a support frame, the support frame being provided with an electric telescopic rod arranged vertically along an axis, a telescopic part of the electric telescopic rod being connected with a lifting plate, the lifting plate being provided with the horizontal two-axis linkage assembly.

3. The on-line weld scarfing apparatus for helical corrosion-proof pipes according to claim 2, characterized in that, A bottom end of the lifting plate is provided with a guide column, the guide column being slidably connected with a guide sleeve provided on the support frame.

4. The on-line weld scarfing apparatus for helical corrosion-proof pipes according to claim 1, wherein The horizontal two-axis linkage assembly comprises a first horizontal moving mechanism, an output movement direction of the first horizontal moving mechanism being parallel to a straight conveying direction of the first power rotary roller and the second power rotary roller, the first horizontal moving mechanism being connected with a second horizontal moving mechanism, an output movement direction of the second horizontal moving mechanism being perpendicular to the output movement direction of the first horizontal moving mechanism, the second horizontal moving mechanism being connected with the polishing assembly.

5. The on-line weld scarfing apparatus for helical corrosion-proof pipes according to claim 4, characterized in that, The first horizontal moving mechanism adopts a screw rod transmission mechanism.

6. The on-line weld scarfing apparatus for helical corrosion-proof pipes according to claim 4, characterized in that, The second horizontal moving mechanism adopts a screw rod transmission mechanism.

7. The on-line weld scarfing apparatus for helical corrosion-proof pipes according to claim 1, characterized in that, The polishing assembly comprises a support plate, the support plate being provided with a power motor, an output shaft of the power motor being connected with a driving wheel, the support plate being further provided with a driven wheel frame, the driven wheel frame being rotatably connected with a driven wheel, the driven wheel and the driving wheel being wound with a polishing belt.

8. The on-line weld scarfing apparatus for helical corrosion-proof pipes according to claim 7, characterized in that, The polishing belt adopts a brown fused alumina polishing belt.

9. The on-line weld scarfing apparatus for helical corrosion-proof pipes according to claim 7, characterized in that, The driven wheel adopts a rubber wheel.

10. A helical corrosion-proof pipe production line, characterized in that, The spiral anticorrosion pipe on-line outer weld polishing device is provided.

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