Hydraulic self-adaptive multi-pipe-diameter pipeline aligning device and aligning method thereof

Abstract

The invention relates to the technical field of pipeline aligning, in particular to a hydraulic self-adaptive multi-pipe-diameter pipeline aligning device and an aligning method thereof, and mainly aims to solve the problems that the adaptive range of a clamping assembly is generally limited by a fixed structure, a clamping fixture of a corresponding specification needs to be disassembled and replaced when a pipe diameter is replaced, aligning operation needs to be stopped in the process, and the working efficiency is low. The pipeline aligning device comprises a platform support, supporting legs are fixedly installed at the lower end of the platform support, an aligning assembly used for clamping a pipeline is arranged at the upper end of the platform support, and a fine adjustment assembly used for improving the pipeline aligning precision is further arranged at the upper end of the platform support. By means of the natural embedding structure of the first protruding part and the second protruding part of the L-shaped clamping plate and in cooperation with self-adaptive driving of the two-way hydraulic cylinder, the clamping requirements of pipelines with different pipe diameters can be met without disassembling and replacing the clamping assembly, and the downtime of equipment remodeling under the multi-pipe-diameter working condition is effectively shortened.

Description

Technical Field

[0001] This invention relates to the field of pipe alignment technology, and in particular to a hydraulic adaptive multi-diameter pipe alignment device and its alignment method. Background Technology

[0002] In the fields of pipeline engineering such as petrochemicals, municipal water supply and drainage, and natural gas transmission, pipeline alignment is a core process to ensure the overall sealing and structural stability of the pipeline system. Its quality directly affects the transmission efficiency and long-term operational safety of the subsequent pipeline. At present, the mainstream pipeline alignment equipment in the industry is mainly divided into two types: mechanical clamping type and hydraulic drive type. Among them, mechanical clamping equipment fixes the position of the pipeline by manually adjusting the screw or the buckle structure, while hydraulic drive equipment relies on hydraulic cylinders to provide clamping and displacement power.

[0003] In actual pipeline construction, situations often arise where multiple diameter pipes are connected alternately. For example, in municipal pipeline renovation projects, pipes of different specifications such as DN200, DN400, and DN600 need to be connected sequentially. Meanwhile, high-pressure pipelines require high precision in pipe alignment, necessitating strict control of radial and angular offsets. Existing pipe alignment equipment, when dealing with such situations, typically has its clamping components limited by the fixed structure. Changing pipe diameters requires disassembling and replacing the corresponding clamping fixtures, necessitating a halt to alignment operations and consuming additional time. Furthermore, pipe alignment adjustments largely rely on operators visually observing the gap and alignment of the pipe ends and manually manipulating adjustment components for correction. This process is susceptible to variations in operator experience, making precise control of angular offset difficult. This can lead to slight deviations after pipe connection, posing challenges to subsequent welding processes, increasing the probability of welding defects, and requiring more time for repeated verification and adjustments. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that the adaptability of clamping components in the background is usually limited by the fixed structure, and when changing the pipe diameter, it is necessary to disassemble and replace the clamping fixture of the corresponding specification, which requires stopping the alignment operation and consuming extra working time.

[0005] The technical solution of the present invention: a hydraulic adaptive multi-diameter pipe alignment device, including a platform support, a support foot fixedly installed at the lower end of the platform support, an alignment component for clamping the pipe at the upper end of the platform support, and a fine adjustment component for improving the alignment accuracy of the pipe at the upper end of the platform support.

[0006] Optionally, the docking assembly includes a base fixedly installed on the upper end of the platform support, two sliders are provided on the base, and a bidirectional hydraulic pump station is fixedly installed on the lower end of the platform support.

[0007] Optionally, the base has a guide groove for one of the sliders, and the slider is slidably connected to the guide groove. A one-way hydraulic cylinder is fixedly installed on the base corresponding to the slider, and the output end of the one-way hydraulic cylinder is fixedly connected to the slider. The other slider is fixedly connected to the base. A two-way hydraulic cylinder is fixedly installed on the upper end of each slider, and the two-way hydraulic pump station is connected to the two-way hydraulic cylinder.

[0008] Optionally, each of the bidirectional hydraulic cylinders has a transmission plate fixedly connected to its output end, and a transmission rod is rotatably connected to the upper end of each transmission plate.

[0009] Optionally, each of the transmission rods has an L-shaped clamp fixedly connected to one of its opposite ends. A pressure sensor is fixedly installed on the inner side of each L-shaped clamp, and an alignment sensor is fixedly installed on one of the L-shaped clamps. The L-shaped clamps naturally form a first protrusion and a second protrusion, which naturally fit together. The fine-tuning assembly includes a transmission disc fixedly connected to the other end of the transmission rod, and an adjusting rod is fixedly connected to the edges of the transmission discs on opposite sides.

[0010] Optionally, the fine-tuning component further includes an extrusion plate disposed on the upper end of the base, the extrusion plate having an extrusion groove, and the adjusting rod movably passing through the extrusion groove.

[0011] Optionally, a support plate is fixedly installed on the base corresponding to the extrusion plate. A rotating shaft is rotatably connected to the upper end of each support plate. One end of the rotating shaft is fixedly connected to the extrusion plate, and a worm gear is fixedly connected to one side of each rotating shaft.

[0012] Optionally, a bidirectional motor is fixedly installed at the lower end of the base, and a first bevel gear is fixedly installed at the output end of the bidirectional motor. The base is rotatably connected to two shafts corresponding to the first bevel gear. A worm is fixedly installed at the upper end of the shaft and meshes with a worm wheel. A second bevel gear is fixedly connected at the lower end of the shaft and meshes with the first bevel gear.

[0013] Optionally, an integrated controller is fixedly installed on the base. The integrated controller has preset pipe alignment thresholds and centering offset thresholds. When the integrated controller is manually operated, it sends a first control message. At this time, the first control message drives the bidirectional hydraulic cylinder to contract through the bidirectional hydraulic pump station. The bidirectional hydraulic cylinder drives the transmission rod and L-shaped clamp to clamp the pipe. The pressure sensor under compression sends a first feedback message. The integrated controller, upon receiving the first feedback message, sends a second control message. The second control message drives the unidirectional hydraulic cylinder to move one of the L-shaped clamps and the pipe closer to the other pipe. At the same time, the centering sensor sends a second feedback message to the integrated controller. The integrated controller, upon receiving the second feedback message, sends a third control message. The third control message drives the bidirectional motor to rotate. The motor ultimately drives the two pipes to rotate alternately around the transmission rod as the axis, achieving fine-tuning of the angle.

[0014] A hydraulic adaptive multi-diameter pipe alignment method includes the following steps: S1. Hoist the two pipes to be aligned to the alignment component area of ​​the platform support, so that the pipe openings are facing each other and the axes are initially adjusted to be parallel. S2. The integrated controller operates by driving the bidirectional hydraulic cylinder to retract via the bidirectional hydraulic pump station, which in turn drives the L-shaped clamping plate to hold the pipeline. The pressure sensor stops when it reaches the preset threshold. S3, the integrated controller drives the unidirectional hydraulic cylinder to move one side of the pipeline closer to the other side, and the alignment sensor detects the alignment deviation of the pipe opening in real time; S4. When the deviation exceeds the preset range, the integrated controller drives the bidirectional motor, which drives the pipe to rotate alternately around the transmission rod as the axis through the transmission structure until the deviation reaches the standard. S5. After the pipe opening gap and offset meet the requirements, maintain the alignment posture for subsequent processing.

[0015] In summary, this application includes at least one of the following beneficial technical effects: This invention utilizes the natural interlocking structure of the first and second protrusions of the L-shaped clamping plate, combined with the adaptive drive of the bidirectional hydraulic cylinder, to adapt to the clamping requirements of pipes of different diameters without disassembling and replacing the clamping components, effectively reducing downtime for equipment changeover under multi-diameter conditions.

[0016] Furthermore, when the first and second protrusions of the L-shaped clamp naturally fit together, the fitting surfaces of the two protrusions can automatically match the fitting depth of the two protrusions according to the pipe diameter during the process of the L-shaped clamp driven by the bidirectional hydraulic cylinder to clamp the pipe.

[0017] Furthermore, in addition to achieving deceleration and precise fine-tuning, the meshing transmission between the worm and worm wheel in the fine-tuning component also has a reverse self-locking characteristic that creates a "mechanical locking" effect after the pipe angle is finely adjusted. Even if the bidirectional motor is de-energized, the worm wheel cannot drive the worm to rotate in the reverse direction, thereby ensuring that the positions of the extrusion plate, adjusting rod, transmission disc, and transmission rod remain fixed and the pipe angle will not shift due to external forces.

[0018] In summary, this invention achieves adaptive clamping and precise angle locking of multi-diameter pipes through structural optimization. It solves the problems of cumbersome equipment changeover and long downtime in multi-diameter working conditions, and avoids angle deviation caused by external forces during pipe alignment. It effectively improves the efficiency and accuracy stability of pipe alignment operations, and provides reliable technical support for efficient construction and quality assurance of various pipeline projects. Attached Figure Description

[0019] Figure 1 Overall structural front view; Figure 2 Partial sectional view of the overall structure; Figure 3 Overall structural side view; Figure 4 A partial structural diagram of the connector component; Figure 5 for Figure 2 Enlarged view of the structure of area A in the overall structure.

[0020] Reference numerals: 1. Platform support; 2. Support leg; 3. Alignment assembly; 4. Fine-tuning assembly; 301. Base; 302. Slider; 303. Bidirectional hydraulic pump station; 304. Guide groove; 305. One-way hydraulic cylinder; 306. Bidirectional hydraulic cylinder; 307. Transmission plate; 308. Transmission rod; 309. L-shaped clamp; 310. First protrusion; 311. Second protrusion; 401. Transmission disc; 402. Adjusting rod; 403. Extrusion plate; 404. Extrusion groove; 405. Support plate; 406. Rotating shaft; 407. Worm gear; 408. Bidirectional motor; 409. First bevel gear; 410. Rotating shaft; 411. Worm; 412. Second bevel gear. Detailed Implementation

[0021] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] The components of the embodiments of the invention described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0023] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] Example

[0027] like Figures 1-5As shown, a hydraulic adaptive multi-diameter pipe alignment tool includes a platform support 1, with a support leg 2 fixedly installed at the lower end of the platform support 1. An alignment component 3 for clamping the pipe is provided at the upper end of the platform support 1, and a fine-tuning component 4 for improving the pipe alignment accuracy is also provided at the upper end of the platform support 1. The alignment component 3 includes a base 301 fixedly installed at the upper end of the platform support 1, with two sliders 302 provided on the base 301. A bidirectional hydraulic pump station 303 is fixedly installed at the lower end of the platform support 1. A guide groove 304 is provided on the base 301 corresponding to one of the sliders 302, and the slider 302 is slidably connected to the guide groove 304. One slider 302 is fixedly mounted with a one-way hydraulic cylinder 305. The output end of the one-way hydraulic cylinder 305 is fixedly connected to the slider 302. Another slider 302 is fixedly connected to the base 301. A two-way hydraulic cylinder 306 is fixedly mounted on the upper end of each slider 302. A two-way hydraulic pump station 303 is connected to the two-way hydraulic cylinder 306. A transmission plate 307 is fixedly connected to the output end of each two-way hydraulic cylinder 306. A transmission rod 308 is rotatably connected to the upper end of each transmission plate 307. An L-shaped clamp 309 is fixedly connected to the opposite end of each transmission rod 308. A pressure sensor is fixedly mounted on the inner side of each L-shaped clamp 309. One of the L-shaped clamps 309 has a pressure sensor installed on its inner side. A centering sensor is fixedly installed on the 9th base. The L-shaped clamp 309 naturally forms a first protrusion 310 and a second protrusion 311, which naturally fit together. The fine-tuning assembly 4 includes a transmission disc 401 fixedly connected to the other end of the transmission rod 308, with adjusting rods 402 fixedly connected to the edges of the transmission disc 401 on opposite sides. The fine-tuning assembly 4 also includes a pressing plate 403 disposed on the upper end of the base 301, with a pressing groove 404 formed on the pressing plate 403, through which the adjusting rod 402 moves. A support plate 405 is fixedly installed on the base 301 corresponding to the pressing plate 403. The upper end of the support plate 405 is rotatably connected to a rotating shaft 406. One end of the rotating shaft 406 is fixedly connected to the extrusion plate 403. A worm gear 407 is fixedly connected to one side of the rotating shaft 406. A bidirectional motor 408 is fixedly installed at the lower end of the base 301. A first bevel gear 409 is fixedly installed at the output end of the bidirectional motor 408. Two rotating shafts 410 are rotatably connected to the base 301 corresponding to the first bevel gear 409. A worm 411 is fixedly installed at the upper end of the rotating shaft 410. The worm 411 meshes with the worm gear 407. A second bevel gear 412 is fixedly connected at the lower end of the rotating shaft 410. The second bevel gear 412 meshes with the first bevel gear 409.An integrated controller is fixedly installed on the base 301. The integrated controller has preset pipe alignment thresholds and centering offset thresholds. Manual operation of the integrated controller sends a first control message, which drives the bidirectional hydraulic cylinder 306 to contract via the bidirectional hydraulic pump station 303. The bidirectional hydraulic cylinder 306 then drives the transmission rod 308 and L-shaped clamps 309 to clamp the pipe. The pressure sensor, subjected to compression, sends a first feedback message. Upon receiving the first feedback message, the integrated controller sends a second control message. This second control message drives the unidirectional hydraulic cylinder 305 to move one of the L-shaped clamps 309 and the pipe closer to the other pipe. Simultaneously, the centering sensor sends a second feedback message to the integrated controller. Upon receiving the second feedback message, the integrated controller sends a third control message, which drives the bidirectional motor 408 to rotate. The motor ultimately drives the two pipes to rotate alternately around the transmission rod 308, achieving fine-tuning of the angle.

[0028] In this embodiment, a hydraulic adaptive multi-diameter pipe alignment method includes the following steps: S1. Transfer the two pipes to be aligned to the alignment component 3 area of ​​the platform support 1 using the hoisting equipment, so that the pipe openings of the two pipes are in a relative state; observe and fine-tune the position of the pipes to ensure that the axes of the two pipes are parallel, and that the outer walls of the pipes are respectively reserved with the inner sides of the two sets of L-shaped clamps 309 to make adaptation gaps, laying the foundation for subsequent clamping and alignment. S2. The integrated controller on the manual operation base 301 sends the first control information to the bidirectional hydraulic pump station 303. After receiving the command, the bidirectional hydraulic pump station 303 starts and supplies hydraulic oil to the bidirectional hydraulic cylinders 306 at the upper end of the two sets of sliders 302, driving the output end of the bidirectional hydraulic cylinders 306 to retract. Through the power transmission of the transmission plate 307 and the transmission rod 308, the L-shaped clamping plate 309 is driven to move closer to the outer wall of the pipe. The interlocking structure of the first protrusion 310 and the second protrusion 311 naturally formed by the L-shaped clamping plate 309 adaptively fits the outer wall of pipes with different diameters. When the pressure sensor on the inner side of the L-shaped clamping plate 309 detects that the clamping pressure reaches the "pipe alignment threshold" preset by the integrated controller, the sensor sends the first feedback information to the integrated controller. After receiving the feedback, the integrated controller immediately sends a stop command to the bidirectional hydraulic pump station 303, and the bidirectional hydraulic cylinders 306 stop retracting, completing the stable clamping of the pipe.

[0029] S3. After receiving the "first feedback information", the integrated controller synchronously sends the second control information to the one-way hydraulic cylinder 305. The output end of the one-way hydraulic cylinder 305 extends, driving the slider 302 fixedly connected to it to slide along the guide groove 304 of the base 301. Then, through the two-way hydraulic cylinder 306, the transmission rod 308, and the L-shaped clamp 309, it drives one side of the pipe to move closer to the fixed pipe on the other side, reducing the distance between the two pipe openings. During this process, the centering sensor fixed on one of the L-shaped clamps 309 continuously detects the centering offset of the two pipe openings, including radial offset and angular offset, and transmits the detection data to the integrated controller in real time in the form of the second feedback information.

[0030] S4. The integrated controller analyzes the "second feedback information". If it determines that the pipe alignment offset exceeds the preset "alignment offset threshold", it immediately sends the third control information to the bidirectional motor 408. Driven by the transmission structure: After the bidirectional motor 408 starts, it drives the meshing second bevel gear 412 to rotate through the first bevel gear 409 at the output end, which in turn drives the rotating shaft 410 and the worm gear 411 at the upper end to rotate synchronously; the worm gear 411 meshes with the worm wheel 407 to drive the rotating shaft 406 and the extrusion plate 403 to rotate slightly around the support plate 405; the extrusion groove 404 of the extrusion plate 403 exerts a force on the adjusting rod 402 that passes through it, causing the transmission disc 401 and the transmission rod 308 to rotate around their own axis, and finally causing the pipe held by the L-shaped clamping plate 309 to rotate alternately; the centering sensor continuously feeds back offset data until the offset drops to within the "centering offset threshold", the integrated controller sends a stop command, and the bidirectional motor 408 stops.

[0031] S5. The integrated controller synchronously detects the "pipe gap" and "alignment offset". After confirming that both meet the preset threshold, it maintains the current working state of the bidirectional hydraulic cylinder 306 and the unidirectional hydraulic cylinder 305, so that the L-shaped clamp 309 maintains the clamping and alignment posture of the pipe, providing stable conditions for subsequent pipe welding, sealing and other processing procedures.

[0032] The above specific embodiments are merely optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A hydraulic adaptive multi-diameter pipe fitting device, comprising a platform support (1), wherein a support leg (2) is fixedly installed at the lower end of the platform support (1), characterized in that, The upper end of the platform support (1) is provided with a matching component (3) for clamping the pipe, and the upper end of the platform support (1) is also provided with a fine-tuning component (4) for improving the pipe matching accuracy.

2. The hydraulic adaptive multi-diameter pipe alignment device according to claim 1, characterized in that, The matching component (3) includes a base (301) fixedly installed on the upper end of the platform support (1), two sliders (302) are provided on the base (301), and a bidirectional hydraulic pump station (303) is fixedly installed on the lower end of the platform support (1).

3. A hydraulic adaptive multi-diameter pipe alignment device according to claim 2, characterized in that, The base (301) has a guide groove (304) corresponding to one of the sliders (302), and the slider (302) is slidably connected to the guide groove (304). The base (301) is fixedly installed with a one-way hydraulic cylinder (305) corresponding to the slider (302). The output end of the one-way hydraulic cylinder (305) is fixedly connected to the slider (302). The other slider (302) is fixedly connected to the base (301). A two-way hydraulic cylinder (306) is fixedly installed on the upper end of each slider (302). The two-way hydraulic pump station (303) is connected to the two-way hydraulic cylinder (306).

4. A hydraulic adaptive multi-diameter pipe alignment device according to claim 3, characterized in that, The output end of each bidirectional hydraulic cylinder (306) is fixedly connected to a transmission plate (307), and the upper end of each transmission plate (307) is rotatably connected to a transmission rod (308).

5. A hydraulic adaptive multi-diameter pipe alignment device according to claim 4, characterized in that, The transmission rod (308) is fixedly connected to an L-shaped clamp (309) at one end. A pressure sensor is fixedly installed on the inner side of the L-shaped clamp (309). One of the L-shaped clamps (309) is fixedly installed with a centering sensor. The L-shaped clamp (309) naturally forms a first protrusion (310) and a second protrusion (311), which are naturally fitted together. The fine-tuning component (4) includes a transmission disc (401) fixedly connected to the other end of the transmission rod (308). An adjusting rod (402) is fixedly connected to the edge of the transmission disc (401) on the side away from each other.

6. A hydraulic adaptive multi-diameter pipe alignment device according to claim 5, characterized in that, The fine-tuning component (4) also includes an extrusion plate (403) disposed on the upper end of the base (301), the extrusion plate (403) having an extrusion groove (404) and the adjusting rod (402) moving through the extrusion groove (404).

7. A hydraulic adaptive multi-diameter pipe alignment device according to claim 6, characterized in that, The base (301) is fixedly installed with a support plate (405) corresponding to the extrusion plate (403). The upper end of the support plate (405) is rotatably connected with a rotating shaft (406). One end of the rotating shaft (406) is fixedly connected to the extrusion plate (403), and a worm gear (407) is fixedly connected to one side of the rotating shaft (406).

8. A hydraulic adaptive multi-diameter pipe alignment device according to claim 7, characterized in that, A bidirectional motor (408) is fixedly installed at the lower end of the base (301), and a first bevel gear (409) is fixedly installed at the output end of the bidirectional motor (408). The base (301) is rotatably connected to two rotating shafts (410) corresponding to the first bevel gear (409), and a worm gear (411) is fixedly installed at the upper end of the rotating shaft (410).

9. A hydraulic adaptive multi-diameter pipe alignment device according to claim 8, characterized in that, The worm (411) is meshed with the worm wheel (407), the lower end of the rotating shaft (410) is fixedly connected to the second bevel gear (412), the second bevel gear (412) is meshed with the first bevel gear (409), and an integrated controller is fixedly installed on the base (301).

10. A hydraulic adaptive multi-diameter pipe alignment method, used in the hydraulic adaptive multi-diameter pipe alignment device according to any one of claims 1-9, characterized in that, Includes the following steps: S1. Hoist the two pipes to be aligned to the alignment component (3) area of ​​the platform support (1) so that the pipe openings are opposite each other and the axes are initially adjusted to be parallel. S2. The integrated controller operates by driving the bidirectional hydraulic cylinder (306) to contract through the bidirectional hydraulic pump station (303), which in turn drives the L-shaped clamp (309) to clamp the pipeline. The pressure sensor stops when it reaches the preset threshold. S3, the integrated controller drives the one-way hydraulic cylinder (305) to move one side of the pipeline closer to the other side, and the centering sensor detects the centering offset of the pipe opening in real time; S4. When the deviation exceeds the preset range, the integrated controller drives the bidirectional motor (408), which drives the pipeline to rotate alternately around the transmission rod (308) as the axis through the transmission structure until the deviation reaches the standard. S5. After the pipe opening gap and offset meet the requirements, maintain the alignment posture for subsequent processing.

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