Pipe alignment device
The design of the pipe alignment device solves the problem of steel pipe alignment during the transportation of frequency converter cabinets, achieving efficient and accurate steel pipe alignment and ensuring welding quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHUZHOU NAT ENG RES CENT OF CONVERTERS
- Filing Date
- 2025-06-23
- Publication Date
- 2026-07-14
AI Technical Summary
During the modular transportation of the inverter cabinet, the steel pipes may become misaligned due to non-uniform stress deformation, affecting the welding quality.
A pipe alignment device is used, which adjusts the position of the second pipe by combining a connecting rod, a positioning component, and an adjusting component, so that its central axis coincides with the central axis of the first pipe. The device includes an annular positioning component, multiple adjusting components, and a laser rangefinder to achieve precise alignment.
It improves the efficiency and accuracy of steel pipe alignment, simplifies the operation process, and ensures welding quality.
Smart Images
Figure CN224492387U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cabinet transportation technology, and in particular to a pipe alignment device. Background Technology
[0002] A frequency converter (VDC) is a power electronic device that precisely controls the speed and torque of an AC motor by changing the frequency and voltage of the power supply. It is widely used in industrial energy conservation, process optimization, and equipment protection. A VDC cabinet is a specialized electrical cabinet that provides protection, heat dissipation, electromagnetic shielding, and centralized control for the VDC and its associated equipment. It is widely used in industrial motor speed control systems. Because VDC cabinets are relatively large and cannot be transported as a single unit, they are typically disassembled into multiple modular sections before transportation and transported using a modular, segmented transportation method.
[0003] In related technologies, after transportation to the destination, the steel pipes of each segment cabinet are welded together to reassemble them into a frequency converter cabinet. However, during transportation, the segment cabinets may be affected by non-uniform stress, causing the steel pipes to deform. This can lead to misalignment of the steel pipes between two segment cabinets, thus affecting the welding process. Utility Model Content
[0004] This utility model provides a pipe alignment device for aligning the steel pipes of two segmented cabinets.
[0005] This utility model provides a pipe fitting alignment device for aligning a first pipe fitting and a second pipe fitting, the pipe fitting alignment device comprising:
[0006] Connecting rod;
[0007] A first positioning element is connected to one end of the connecting rod, the first positioning element is sleeved on the first tube, and the first positioning element contacts the outer surface of the first tube.
[0008] A second positioning element is connected to the other end of the connecting rod. The central axis of the second positioning element coincides with the central axis of the first positioning element in a first direction. The second positioning element is sleeved on the second tube, and a gap is formed between the second positioning element and the outer surface of the second tube.
[0009] An adjusting member is disposed on the second positioning member. The adjusting member is used to adjust the position of the second pipe fitting so that the central axis of the second pipe fitting coincides with the central axis of the second positioning member.
[0010] In some embodiments, the second positioning member is an annular structure, and the second positioning member is provided with a plurality of through holes that penetrate the second positioning member radially, and the plurality of through holes are arranged circumferentially along the central axis of the second positioning member;
[0011] The number of adjusting members is multiple, and the multiple adjusting members are respectively disposed in the multiple through holes. The adjusting members are configured to abut against the outer side of the second pipe and can move along the axis of the corresponding through hole to adjust the position of the second pipe.
[0012] In some embodiments, the number of the through holes and the adjusting members are both four, and the four through holes are evenly spaced circumferentially along the central axis of the second positioning member.
[0013] In some embodiments, the through hole is provided with an internal thread, the adjusting member is provided with an external thread, and the adjusting member and the through hole are engaged by the thread.
[0014] In some embodiments, the side of the adjusting member is provided with a scale.
[0015] In some embodiments, a laser ranging device is provided at the end of each adjusting member away from the second tube, the laser ranging device being used to detect the distance between the laser ranging device and the second positioning member.
[0016] In some embodiments, each of the adjusting members is further provided with an indicator light at its end away from the second tube. The indicator light is electrically connected to the laser rangefinder and is configured to indicate when the laser rangefinder measures that the corresponding adjusting member is adjusted to the correct position.
[0017] In some embodiments, the second positioning element includes two second half-rings connected by a hinge.
[0018] In some embodiments, the first positioning element is a ring-shaped structure, comprising two first half-rings connected by a hinge.
[0019] In some embodiments, the connecting rod includes:
[0020] A first member extends along the first direction and is capable of telescoping in the first direction;
[0021] A second rod extends along a second direction, and its two ends are respectively connected to one end of the first rod and the first positioning member, wherein the second direction is perpendicular to the first direction; and
[0022] The third member extends along the second direction, and its two ends are respectively connected to the other end of the first member and the second positioning member.
[0023] This application provides a pipe alignment device, which has at least the following advantages compared with the prior art:
[0024] The first positioning component is fitted onto the first pipe fitting, and the second positioning component is fitted onto the second pipe fitting. The position of the second pipe fitting is adjusted by the adjusting component so that the central axis of the second pipe fitting coincides with the central axis of the first pipe fitting. The operation is simple and convenient, and the calibration efficiency is improved. Attached Figure Description
[0025] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.
[0026] Figure 1 This is a schematic diagram of the pipe alignment device provided in the embodiments of this application;
[0027] Figure 2 This is a schematic diagram of the pipe alignment device provided in the embodiments of this application connecting the first pipe and the second pipe.
[0028] Figure label:
[0029] 1- Pipe alignment device;
[0030] 11-Connecting rod; 111-First member; 112-Second member; 113-Third member;
[0031] 12-First positioning component; 121-Second half-ring;
[0032] 13-Second positioning component; 131-Second half ring;
[0033] 14-Adjusting component. Detailed Implementation
[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0035] In this application, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0036] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.
[0037] The technical solution of this application will be further described below with reference to specific embodiments and accompanying drawings.
[0038] Please refer to the following: Figure 1 and Figure 2 This application provides a pipe alignment device 1 for aligning a first pipe and a second pipe. The pipe alignment device 1 includes a connecting rod 11, a first positioning member 12, a second positioning member 13, and an adjusting member 14. The first positioning member 12 is connected to one end of the connecting rod 11, and is sleeved on the first pipe, contacting its outer surface. The second positioning member 13 is connected to the other end of the connecting rod 11, and its central axis coincides with the central axis of the first positioning member 12 in a first direction. The second positioning member 13 is sleeved on the second pipe, forming a gap between it and the outer surface of the second pipe. The adjusting member 14 is disposed on the second positioning member 13 and is used to adjust the position of the second pipe so that its central axis coincides with the central axis of the second positioning member 13.
[0039] It should be noted that the pipe alignment device 1 provided in this application embodiment is not only applicable to aligning the steel pipes of different segment cabinets after the inverter cabinet is transported for subsequent connection or welding, but also applicable to other situations that require the alignment of two pipes, such as the connection of two plastic water pipes. For ease of description, the first pipe and the second pipe in the following embodiments are described using steel pipes on segment cabinets formed by modular disassembly of the inverter cabinet as examples.
[0040] In this embodiment, the first positioning member 12 is fitted onto the first pipe near its end, and the first positioning member 12 is in contact with the outer surface of the first pipe, such that the central axis of the first positioning member 12 is approximately coincident with the central axis of the first pipe. The second positioning member 13 is fitted onto the second pipe near its end, and a gap is formed between the second positioning member 13 and the outer surface of the second pipe; in other words, there is no contact between the second positioning member 13 and the second pipe in the radial direction. It should be noted that the central axis of the second positioning member 13 may not necessarily coincide with the central axis of the second pipe, but the central axes of the first positioning member 12 and the second positioning member 13 coincide, therefore the central axis of the second positioning member 13 is approximately coincident with the central axis of the first pipe.
[0041] It is understandable that during the transportation of the segmented cabinets, non-uniform stress may cause deformation of the first and second tubes, or insufficient flatness of the foundation at the assembly site may cause deformation of either the first or second tube. This can lead to misalignment between the first and second tubes during assembly, meaning the central axis of the second tube does not coincide with the central axis of the second positioning component 13. In this case, the position of the second tube can be adjusted using the adjusting component 14 so that its central axis roughly coincides with the central axis of the second positioning component 13, thereby achieving approximate alignment between the central axis of the second and first tubes. After the central axis of the second and first tubes are approximately aligned, the ends of the first and second tubes can be connected by welding or other connecting components to complete the assembly.
[0042] In summary, the pipe alignment device 1 provided in this application embodiment has a first positioning member 12 fitted onto the first pipe and a second positioning member 13 fitted onto the second pipe. The position of the second pipe is adjusted by the adjusting member 14 so that the central axis of the second pipe coincides with the central axis of the first pipe. The operation is simple and convenient, and the calibration efficiency is improved.
[0043] Please continue reading. Figure 1 and Figure 2 In some embodiments, the second positioning member 13 is an annular structure. The second positioning member 13 has multiple through holes (not shown in the figure) extending radially through the second positioning member 13, spaced circumferentially along the central axis of the second positioning member 13. Multiple adjusting members 14 are provided, each corresponding to one of the multiple through holes. Each adjusting member 14 is configured to abut against the outer surface of the second pipe and is movable along the axis of the corresponding through hole to adjust the position of the second pipe.
[0044] Multiple adjusting members 14 are arranged circumferentially along the central axis of the second positioning member 13, which can realize independent adjustment of the position of the second pipe at multiple angles, thereby adjusting the position of the second pipe more precisely and improving the coaxiality accuracy between the second pipe and the second positioning member 13, thereby improving the coaxiality accuracy between the second pipe and the first pipe.
[0045] For example, when the second pipe fitting deviates in the direction of one of the adjusting members 14, the adjusting member 14 can move along the corresponding through hole and abut against the outer surface of the second pipe fitting, and move in the opposite direction of the deflection of the adjusting member 14 to correct the position of the second pipe fitting, so that the central axis of the second pipe fitting is approximately coincident with the central axis of the second positioning member 13. As another example, when the second pipe fitting deviates between two adjacent adjusting members 14, the two adjusting members 14 can move along their respective corresponding through holes and abut against the outer surface of the second pipe fitting. By adjusting together with the two adjusting members 14, the position of the second pipe fitting can be corrected, so that the central axis of the second pipe fitting is approximately coincident with the central axis of the second positioning member 13.
[0046] It should be noted that, apart from the adjusting member 14 which plays an adjusting role and abuts against the outer side of the second pipe, the other adjusting members 14 also abut against the outer side of the second pipe in the adjusted position, thereby preventing the second pipe from shifting to other parts of the system again.
[0047] Please see Figure 1 In some embodiments, there are four through holes and four adjusting members 14, and the four through holes are evenly spaced around the central axis of the second positioning member 13.
[0048] In this embodiment, the four through holes are evenly spaced along the central axis of the second positioning member 13, which means that the four adjusting members 14 are orthogonally distributed in mutually perpendicular directions, so that the included angle between the moving axes of two adjacent adjusting members 14 is 90°.
[0049] Therefore, in this embodiment, when the second pipe is deflected in the direction of one of the adjusting members 14, the adjusting member 14 can move along the corresponding through hole and abut against the outer surface of the second pipe, and move in the opposite direction of the deflection of the adjusting member 14 to correct the position of the second pipe, so that the central axis of the second pipe is approximately coincident with the central axis of the second positioning member 13. When the second pipe is deflected between any two adjacent adjusting members 14, the corresponding two adjusting members 14 can move along their respective through holes and abut against the outer surface of the second pipe. By adjusting together with the two adjusting members 14, the position of the second pipe can be corrected, so that the central axis of the second pipe is approximately coincident with the central axis of the second positioning member 13.
[0050] In some embodiments, the through hole is provided with an internal thread, and the adjusting member 14 is provided with an external thread, and the adjusting member 14 and the through hole are engaged by the thread.
[0051] The adjusting member 14 is threaded into the through hole. Rotating the adjusting member 14 allows for axial movement along the through hole, enabling precise control of the distance the adjusting member 14 moves axially. This precise control of the adjusting member 14's movement distance allows for accurate correction of the second pipe fitting's position. Furthermore, the thread provides a self-locking effect, preventing the adjusting member 14 from automatically moving circumferentially along the through hole and avoiding errors.
[0052] In some embodiments, the side of the adjusting member 14 is provided with a scale.
[0053] In this example, a plane can be constructed on the side of the adjusting member 14. The plane is parallel to the axis of the corresponding through hole of the adjusting member 14. The plane is marked with a laser or other means, so that the staff can more intuitively obtain information such as the current position of the adjusting member 14 and the distance to be moved.
[0054] For example, after all the adjusting members 14 abut against the outer side of the second tube, the position of all the adjusting members 14 is adjusted until the scale values of each adjusting member 14 and the second positioning member 13 are the same, so that the central axis of the second tube is approximately coincident with the central axis of the second positioning member 13.
[0055] In some embodiments, each adjusting member 14 is provided with a laser ranging device (not shown in the figure) at the end away from the second tube, the laser ranging device being used to detect the distance between the laser ranging device and the second positioning member 13.
[0056] In this example, the distance between the laser rangefinder and the second positioning member 13 can be measured using a laser rangefinder to indirectly obtain the distance between the end of the adjusting member 14 away from the second tube and the second positioning member 13. This allows for the acquisition of information such as the current position of the adjusting member 14 and the distance it needs to move. It should be noted that the direction of the laser emitted by the laser rangefinder is approximately parallel to the axis of the corresponding through hole, and the contact point between the laser emitted by the laser rangefinder and the second positioning member 13 is located in the first direction of the axis of the corresponding adjusting member 14.
[0057] For example, after all the adjusting members 14 abut against the outer side of the second tube, the position of all the adjusting members 14 is adjusted until the distance between the laser ranging device corresponding to all the adjusting members 14 and the second positioning member 13 is equal, so as to realize that the central axis of the second tube and the central axis of the second positioning member 13 are approximately coincident.
[0058] In some embodiments, each adjusting member 14 is further provided with an indicator light (not shown in the figure) at the end away from the second pipe. The indicator light is electrically connected to the laser rangefinder and is configured to indicate when the laser rangefinder measures that the corresponding adjusting member 14 is adjusted to the correct position.
[0059] In this embodiment, when the laser ranging devices corresponding to all adjusting components 14 measure that the distance between them and the second positioning component 13 is equal, the indicator lights corresponding to each adjusting component 14 will have the same color. This allows the staff to more intuitively understand that the central axis of the second tube body has roughly coincided with the central axis of the second positioning component 13.
[0060] For example, the preset distance that the laser rangefinder should measure when the central axis of the second pipe and the central axis of the second positioning member 13 are approximately coincident can be indirectly obtained based on the dimensions of the second positioning member 13, the second pipe, and the adjusting member 14. When the distance measured by the laser rangefinder is equal to the preset distance, the indicator light illuminates in a first color; when the distance measured by the laser rangefinder is greater than the preset distance, the indicator light illuminates in a second color; and when the distance measured by the laser rangefinder is less than the preset distance, the indicator light illuminates in a third color. Of course, the indicator light can be configured to indicate when the adjusting member 14 is adjusted to the correct position as measured by the laser rangefinder in other ways, which are not limited here.
[0061] Please see Figure 1 In some embodiments, the second positioning element 13 includes two second half-rings 131 connected by a hinge.
[0062] The two second half-rings 131 are connected by a hinge, allowing them to rotate relative to each other and form an adjustable opening angle between 0 and 180°, which facilitates the second positioning member 13 being fitted onto the second tube body from the side. Of course, the two second half-rings 131 can also form an opening angle greater than 180°, which is not limited here.
[0063] Please see Figure 1 In some embodiments, the first positioning element 12 is a ring structure, and the first positioning element 12 includes two first half rings, which are connected by a hinge.
[0064] The two first half-rings are connected by a hinge, allowing them to rotate relative to each other and form an adjustable opening angle between 0 and 180°, which facilitates the first positioning member 12 being fitted onto the first tube body from the side. Of course, the two first half-rings can also form an opening angle greater than 180°, which is not limited here.
[0065] Please refer to the following: Figure 1 and Figure 2In some embodiments, the connecting rod 11 includes a first rod 111, a second rod 112, and a third rod 113. The first rod 111 extends along a first direction and is telescopic in the first direction. The second rod 112 extends along a second direction, and its two ends are respectively connected to one end of the first rod 111 and a first positioning member 12, wherein the second direction is perpendicular to the first direction. The third rod 113 extends along the second direction, and its two ends are respectively connected to the other end of the first rod 111 and a second positioning member 13.
[0066] The first rod 111 can extend and retract in a first direction, and the distance between the first positioning member 12 and the second positioning member 13 can be adjusted in the first direction to accommodate situations where the distance between the first pipe and the second pipe is different. The first rod 111 can achieve extension and retraction through various structures. For example, the first rod 111 can be a telescopic sleeve using trapezoidal thread transmission; of course, the first rod 111 can also be other structures, which are not limited here.
[0067] In addition, the first rod 111 extends and retracts in the first direction, and in conjunction with the second rod 112 and the third rod 113 extending in the second direction, sufficient operating space can be reserved for the ends of the first pipe and the second pipe to be connected by connectors such as sleeves.
[0068] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A pipe fitting alignment device, characterized in that, The fitting alignment device, used for aligning the first and second fittings, includes: Connecting rod; A first positioning element is connected to one end of the connecting rod, the first positioning element is sleeved on the first tube, and the first positioning element contacts the outer surface of the first tube. A second positioning element is connected to the other end of the connecting rod. The central axis of the second positioning element coincides with the central axis of the first positioning element in a first direction. The second positioning element is sleeved on the second tube, and a gap is formed between the second positioning element and the outer surface of the second tube. An adjusting member is disposed on the second positioning member. The adjusting member is used to adjust the position of the second pipe fitting so that the central axis of the second pipe fitting coincides with the central axis of the second positioning member.
2. The pipe alignment device according to claim 1, characterized in that, The second positioning element is a ring-shaped structure, and the second positioning element is provided with a plurality of through holes that penetrate the second positioning element radially, and the plurality of through holes are arranged circumferentially along the central axis of the second positioning element; The number of adjusting members is multiple, and the multiple adjusting members are respectively disposed in the multiple through holes. The adjusting members are configured to abut against the outer side of the second pipe and can move along the axis of the corresponding through hole to adjust the position of the second pipe.
3. The pipe alignment device according to claim 2, characterized in that, The number of the through holes and the adjusting components are both four, and the four through holes are evenly spaced around the central axis of the second positioning component.
4. The pipe alignment device according to claim 2, characterized in that, The through hole is provided with an internal thread, and the adjusting member is provided with an external thread. The adjusting member and the through hole are engaged by the thread.
5. The pipe alignment device according to claim 2, characterized in that, The side of the adjusting component is provided with a scale.
6. The pipe alignment device according to claim 2, characterized in that, Each of the adjusting components is provided with a laser ranging device at its end away from the second tube, the laser ranging device being used to detect the distance between the laser ranging device and the second positioning component.
7. The pipe fitting alignment device according to claim 6, characterized in that, Each of the adjusting components is also provided with an indicator light at its end away from the second tube. The indicator light is electrically connected to the laser ranging device and is configured to indicate when the laser ranging device measures that the corresponding adjusting component is adjusted to the correct position.
8. The pipe fitting alignment device according to claim 2, characterized in that, The second positioning element includes two second half-rings connected by a hinge.
9. The pipe alignment device according to any one of claims 1-8, characterized in that, The first positioning element is a ring-shaped structure, which includes two first half-rings connected by a hinge.
10. The pipe alignment device according to any one of claims 1-8, characterized in that, The connecting rod includes: A first member extends along the first direction and is capable of telescoping in the first direction; A second rod extends along a second direction, and its two ends are respectively connected to one end of the first rod and the first positioning member, wherein the second direction is perpendicular to the first direction; and The third member extends along the second direction, and its two ends are respectively connected to the other end of the first member and the second positioning member.