A center driving device for elbow seamless 3PE production line
By designing a central drive device for the seamless 3PE bending production line, a rotating cylinder is made to rotate around the center using a drive motor and rotating components. Combined with clamping equipment and bending arm, the problems of low efficiency and poor stability of manual operation in 3PE bending production are solved, and a highly efficient and stable production process is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO HUASHIDA MACHINERY
- Filing Date
- 2025-06-25
- Publication Date
- 2026-06-16
Smart Images
Figure CN224361917U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of pipe bending center drive technology, specifically a pipe bending seamless 3PE production line center drive device. Background Technology
[0002] The core of seamless 3PE for bends is to provide multiple layers of protection for the pipeline system through the combination of seamless steel pipe substrate and 3PE anti-corrosion layer, ensuring its long-term stable operation under complex working conditions. It is suitable for transporting corrosive media such as sulfur-containing natural gas, acidic crude oil, and chemical waste liquid, preventing the inner wall of the pipeline from being corroded and perforated by the media, and ensuring transportation safety.
[0003] In pipeline construction, a large number of bends are required. In order to improve the service life of the pipeline, the bends need to be treated with 3PE anti-corrosion to avoid media leakage caused by corrosion and perforation of the bends. Especially in densely populated urban areas or ecologically sensitive areas, 3PE anti-corrosion treatment can significantly reduce safety accidents and environmental risks.
[0004] After long-term use, it was found that in the previous production of 3PE bent tubes, most of the process, from heating and powder spraying to winding and cooling, was done manually, requiring a lot of manpower and was inefficient and of unstable quality. Even when a bending conveyor was used for transmission, the bending tube could not run well along the center of the circle on the conveyor due to the centrifugal force, which affected the quality of the finished product and production efficiency.
[0005] Therefore, this utility model provides a center drive device for a seamless 3PE production line for bending pipes. Utility Model Content
[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The central drive device of the seamless 3PE bending pipe production line of this utility model includes a rotating chassis; a rotating cylinder is rotatably fitted to the outer wall of the rotating chassis; a force-applying component is fixedly connected to the outer wall of the rotating cylinder; a drive component is installed on the top of the rotating chassis; a rotating component is installed at the output end of the drive component; a rotating cylinder is fixedly connected to the side wall of the rotating component; the rotating component and the middle of the rotating chassis are rotatably fitted; through the above structure, the force-applying component can drive the rotating cylinder to rotate using the rotating component, and the force-applying component can be used to move the bent PE pipe along the center of the conveyor using the installed clamping equipment and bending arm, which is convenient for workers to process it and enhances the mobility and portability of the central drive device of the seamless 3PE bending pipe production line.
[0008] Preferably, the drive assembly includes a drive motor; the rotating chassis and the bottom of the drive motor are rotatably coupled; a slewing bearing is installed on the top of the rotating chassis; the output end of the slewing bearing is connected to the output end of the rotating power device; through the above structure, the drive motor and the rotating power device can be used to make the rotating cylinder drive the force application component to rotate around the center, and the slewing bearing can protect the output end of the drive motor and the rotating power device, reducing external influences, reducing the number of power sources installed on each conveyor, reducing operating costs, and further enhancing the cost reduction effect of the central drive device in the seamless PE production line for pipe bending.
[0009] Preferably, the rotating component includes a gear inner ring; a first gear meshes with the inner sidewall of the gear inner ring; the first gear is fixedly connected to the output sidewall of the rotating power equipment; through the above structure, the first gear can be used to control the rotation of the rotating cylinder by meshing with the gear inner ring, which facilitates the movement and repositioning of the bent PE tube by the force application component, reduces the influence of centrifugal force on the bent PE tube, and further enhances the rotation adjustment effect of the center drive device of the bent seamless PE production line.
[0010] Preferably, the force-applying component includes a main arm; a rotating central shaft is fixedly connected to the top of the rotating chassis; and an auxiliary arm is installed on the side wall of the rotating central shaft. Through the above structure, the main arm and the auxiliary arm can be used to hold the bend from the inside of the bend by the clamping device installed at the end of the main arm, making the bend more stable and less susceptible to the influence of centrifugal force. Different bending arms and clamping devices can be selected according to the angle and diameter of the bend. In this way, the bend is firmly and stably placed on the conveyor line under the combined action of the main arm and the auxiliary arm, further enhancing the conveying stability effect of the center drive device of the seamless PE production line for bends.
[0011] Preferably, a heat sink is installed on the inner wall of the rotating chassis; the heat sink is evenly distributed on the inner wall of the rotating chassis; through the above structure, the heat sink can evenly absorb and dissipate the heat inside the central drive device, further reducing the heat accumulation effect of the central drive device of the seamless PE production line for bending pipes.
[0012] Preferably, the inner sidewall of the rotating chassis is slidably fitted with a blocking mesh; the blocking mesh is slidably fitted with the outer sidewall of the rotating central shaft; through the above structure, the blocking mesh can block and intercept impurities, reduce the obstruction of external impurities to the use of the central drive device, and further enhance the impurity blocking effect of the central drive device of the seamless PE production line for bending pipes.
[0013] Preferably, the auxiliary arm is provided with a flange at its end; through the above structure, the flange can be provided so that the auxiliary arm can adjust its docking length according to the usage, further enhancing the adaptability of the center drive device of the seamless PE production line for pipe bending.
[0014] The beneficial effects of this utility model are as follows:
[0015] 1. The center drive device for a seamless 3PE bending pipe production line described in this utility model can drive the rotating cylinder to rotate by means of a force application component. The force application component can also be used to move the bent PE pipe along the center of the conveyor by means of a clamping device and a bending arm, which facilitates the processing of the pipe by workers and enhances the portability of the center drive device for the seamless 3PE bending pipe production line.
[0016] 2. The center drive device for a seamless 3PE production line for bending pipes described in this utility model, through the setting of a drive motor and a rotating power equipment, can use a rotating component to drive the rotating cylinder to rotate around the center. The setting of a slewing bearing can protect the output end of the drive motor and the rotating power equipment, reduce external influences, reduce the number of power sources installed on each conveyor, reduce the operating cost, and further enhance the cost reduction effect of the center drive device for the seamless 3PE production line for bending pipes. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings.
[0018] Figure 1 This is a perspective view of the present invention;
[0019] Figure 2 This is a side view of the present invention;
[0020] Figure 3 This is a schematic diagram of the rotating power device structure in this utility model;
[0021] Figure 4 This is a schematic diagram of the first gear structure in this utility model.
[0022] In the diagram: 1. Rotating chassis; 11. Rotating cylinder; 2. Drive motor; 21. Slewing bearing; 22. Rotating power equipment; 3. Gear inner ring; 31. First gear; 4. Rotating central shaft; 41. Auxiliary arm; 42. Main arm; 5. Heat sink; 6. Barrier net. Detailed Implementation
[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0024] like Figures 1 to 4 As shown in the figure, a center drive device for a seamless 3PE bending pipe production line according to an embodiment of the present invention includes a rotating chassis 1; a rotating cylinder 11 is rotatably fitted to the outer wall of the rotating chassis 1; a force application component is fixedly connected to the outer wall of the rotating cylinder 11; a drive component is installed on the top of the rotating chassis 1; a rotating component is installed at the output end of the drive component; the rotating cylinder 11 is fixedly connected to the side wall of the rotating component; the rotating component and the middle of the rotating chassis 1 are rotatably fitted; during operation, the drive component can drive the rotating component, thereby rotating the rotating cylinder 11; the force application component uses clamping equipment and bending arm to move the bent 3PE pipe along the center on the conveyor, facilitating workers to perform heating, powder spraying, winding, and cooling operations on the bent 3PE pipe; the force application component allows the rotating component to drive the rotating cylinder 11 to rotate; the force application component allows the installed clamping equipment and bending arm to move the bent 3PE pipe along the center on the conveyor, facilitating workers to process it, and enhancing the portability of the center drive device for the seamless 3PE bending pipe production line.
[0025] like Figures 1 to 4 As shown, the drive assembly includes a drive motor 2; the rotating chassis 1 and the bottom of the drive motor 2 are rotatably coupled; a slewing bearing 21 is mounted on the top of the rotating chassis 1; the output end of the slewing bearing 21 is connected to the output end of the rotating power device 22; during operation, the rotating assembly, through the drive motor 2 and the rotating power device 22, allows the rotating cylinder 11 to rotate around the center, providing a power source for the force-applying component. The slewing bearing 21 protects the output ends of the drive motor 2 and the rotating power device 22, thus avoiding the need for each conveyor to be equipped with a power source. The drive motor 2 and the rotating power device 22 enable the rotating cylinder 11 to drive the force-applying component to rotate around the center. The slewing bearing 21 protects the output ends of the drive motor 2 and the rotating power device 22, reducing external influences and reducing the number of power sources installed on each conveyor, thus reducing operating costs and further enhancing the cost-reduction effect of the central drive device in the seamless 3PE bending pipe production line.
[0026] like Figure 4 As shown, the rotating assembly includes an inner gear ring 3; a first gear 31 meshes with the inner wall of the inner gear ring 3; the first gear 31 is fixedly connected to the output end side wall of the rotating power device 22; during operation, the inner gear ring 3 can be rotated by the first gear 31 to drive the rotating cylinder 11 to rotate when the drive motor 2 and the rotating power device 22 are started, which facilitates the provision of power source to the force application assembly; the setting of the first gear 31 can utilize the meshing relationship with the inner gear ring 3 to control the rotation of the rotating cylinder 11, which facilitates the movement and repositioning of the bent tube 3PE by the force application assembly, reduces the influence of centrifugal force on the bent tube 3PE, and further enhances the rotation adjustment effect of the center drive device of the bent tube seamless 3PE production line.
[0027] like Figures 1 to 3 As shown, the force-applying component includes a main arm 42; a rotating central shaft 4 is fixedly connected to the top of the rotating chassis 1; and an auxiliary arm 41 is installed on the side wall of the rotating central shaft 4. During operation, the bent pipe is installed through the bending arm connected between the main arm 42 and the auxiliary arm 41. At the same time, the clamping device installed at the end of the main arm 42 can hold the bent pipe from the inside, making the forward movement of the bent pipe more stable. Different bending arms and clamping devices can be selected according to different bending pipe angles and diameters. Through the setting of the main arm 42 and the auxiliary arm 41, the clamping device installed at the end of the main arm 42 can hold the bent pipe from the inside, making the forward movement of the bent pipe more stable and less susceptible to the influence of rotational centrifugal force. Different bending arms and clamping devices can be selected according to different bending pipe angles and diameters. In this way, under the combined action of the main arm 42 and the auxiliary arm 41, the bent pipe is firmly and stably placed on the conveyor line, further enhancing the conveying stability effect of the center drive device of the seamless 3PE production line for bent pipes.
[0028] like Figures 1 to 3 As shown, a heat sink 5 is installed on the inner wall of the rotating chassis 1; the heat sink 5 is evenly distributed on the inner wall of the rotating chassis 1; during operation, the heat sink 5 can absorb and dissipate the heat inside the rotating chassis 1, reducing the heat accumulation at the center when the center drive device of the seamless 3PE bending production line starts; the setting of the heat sink 5 can evenly absorb and dissipate the heat inside the center drive device, further reducing the heat accumulation effect of the center drive device of the seamless 3PE bending production line.
[0029] like Figure 1 As shown, a blocking mesh 6 is slidably fitted on the inner side wall of the rotating chassis 1; the blocking mesh 6 is slidably fitted on the outer side wall of the rotating central shaft 4; during operation, the blocking mesh 6 can block external impurities, reducing the impact of impurities on the central area of the central drive device; the setting of the blocking mesh 6 can block and intercept impurities, reducing the obstruction of external impurities to the use of the central drive device, and further enhancing the impurity blocking effect of the central drive device of the seamless 3PE bending pipe production line.
[0030] like Figures 1 to 2 As shown, the auxiliary arm 41 is provided with a flange at its end; during operation, the flange at the end of the auxiliary arm 41 can be used to extend and reinforce the bending pipe according to different sizes; the flange allows the auxiliary arm 41 to adjust its own docking length according to the usage, further enhancing the adaptability of the center drive device of the seamless 3PE bending pipe production line.
[0031] During operation, the drive assembly drives the rotating assembly, which in turn rotates the rotating cylinder 11. The force application assembly, utilizing clamping devices and bending arms, moves the bent 3PE pipe along the center of the conveyor, facilitating heating, powder spraying, winding, and cooling operations for the worker. The drive motor 2 and rotating power device 22, through the rotating assembly, cause the rotating cylinder 11 to rotate around the center, providing power to the force application assembly. The slewing bearing 21 protects the output ends of the drive motor 2 and rotating power device 22, avoiding the need for a separate power source for each conveyor. The first gear 31 rotates the inner ring 3 of the gear when the drive motor 2 and rotating power device 22 start, driving the rotating cylinder 11 forward. The rotating mechanism facilitates the provision of power to the force-applying components. The bending arm, connected between the main arm 42 and the auxiliary arm 41, is used to install the bent pipe. At the same time, the clamping device installed at the end of the main arm 42 can hold the bent pipe from the inside, making the forward movement of the bent pipe more stable. Different bending arms and clamping devices can be selected according to different bending pipe angles and diameters. The heat sink 5 can absorb and dissipate the heat inside the rotating chassis 1, reducing the heat accumulation at the center of the seamless 3PE production line when the bending pipe center drive device starts. The blocking net 6 can block external impurities, reducing the impact of impurities on the center area of the center drive device. The flange at the end of the auxiliary arm 41 can be connected and extended for reinforcement according to different sizes of the bent pipe.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A center drive device for a seamless 3PE pipe bending production line, comprising a rotating chassis (1); characterized in that: The outer wall of the rotating chassis (1) is rotatably fitted with a rotating cylinder (11); the outer wall of the rotating cylinder (11) is fixedly connected with a force-applying component; a drive component is installed on the top of the rotating chassis (1); a rotating component is installed at the output end of the drive component; the rotating cylinder (11) is fixedly connected to the side wall of the rotating component; the rotating component and the middle part of the rotating chassis (1) are rotatably fitted.
2. The center drive device for a seamless 3PE production line for pipe bending according to claim 1, characterized in that: The drive assembly includes a drive motor (2); the bottom of the rotating chassis (1) and the drive motor (2) are rotatably coupled; a slewing bearing (21) is installed on the top of the rotating chassis (1); the output end of the slewing bearing (21) is connected to the output end of the rotating power device (22).
3. The center drive device for a seamless 3PE pipe bending production line according to claim 1, characterized in that: The rotating assembly includes a gear inner ring (3); a first gear (31) meshes with the inner side wall of the gear inner ring (3); the first gear (31) is fixedly connected to the output end side wall of the rotating power device (22).
4. The center drive device for a seamless 3PE pipe bending production line according to claim 1, characterized in that: The force-applying component includes a main arm (42); a rotating central shaft (4) is fixedly connected to the top of the rotating chassis (1); and an auxiliary arm (41) is installed on the side wall of the rotating central shaft (4).
5. The center drive device for a seamless 3PE pipe bending production line according to claim 1, characterized in that: The inner wall of the rotating chassis (1) is equipped with heat sinks (5); the heat sinks (5) are evenly distributed on the inner wall of the rotating chassis (1).
6. The center drive device for a seamless 3PE production line for pipe bending according to claim 1, characterized in that: The inner wall of the rotating chassis (1) is slidably fitted with a blocking mesh (6); the blocking mesh (6) is slidably fitted with the outer wall of the rotating central shaft (4).
7. The center drive device for a seamless 3PE pipe bending production line according to claim 4, characterized in that: The auxiliary arm (41) is provided with a flange at its end.