End cap mounting positioning device and method
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CFHI DALIAN HYDROGENANT REACTOR
- Filing Date
- 2023-12-28
- Publication Date
- 2026-07-03
Smart Images
Figure CN117620947B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of mechanical installation technology, and more specifically, to an end cap installation and positioning device and method. Background Technology
[0002] Pipes are arranged horizontally on the sidewalls of the pressure vessel shell assembly. The inner bore of each pipe has a welded bevel near its outer end face. During pressure vessel manufacturing, an end cap needs to be installed into the pipe. This end cap includes a cap body, a flange, and a cover plate. The cap body and cover plate are coaxially arranged, with the cover plate connected to the axial end of the cap body. An annular flange is connected to the edge of the cover plate facing the cap body. An annular ramp is provided on the circumferential surface of the cap body. The distance between the end of the annular ramp furthest from the cover plate and the axis of the cap body is greater than the distance between the end of the annular ramp closest to the cover plate and the axis of the cap body. A welded end cap bevel is machined on the flange. During installation, the end cap must be inserted into the pipe in a horizontal position, and the misalignment between the pipe bevel and the end cap bevel must be strictly controlled. Due to the limitations of the shell assembly manufacturing process, the end cap can only be installed horizontally.
[0003] Because the end caps are heavy, they cannot be installed by hand. Since the end caps themselves do not have lifting lugs, they are often lifted as a whole and inserted into the pipe fittings. However, it is difficult to control the balance of the end caps during hoisting, and multiple adjustments are required to align the end caps with the pipe fittings. Moreover, it is difficult to match the bevel of the end caps with the bevel of the pipe fittings after installation, resulting in low installation efficiency and accuracy. Summary of the Invention
[0004] The problem this invention aims to solve is how to improve the efficiency and accuracy of end cap installation.
[0005] To address this, the present invention provides an end cap installation and positioning device, characterized in that it includes a counterweight structure, a guide rod, an adjusting screw, a fixing ring, and a first nut. The fixing ring includes a ring body, which is a semi-circular ring. An annular platform is provided on the circumferential side of the end face of the ring body. Two ring bodies are used to enclose and fit around the circumferential surface of the end cap. The counterweight structure includes a counterweight cylinder fitted onto the circumferential surface of the enclosed ring body and an annular connecting platform connected to one end of the counterweight cylinder facing the end cap. The center of gravity of the counterweight structure, the end cap, and the fixing ring as a whole is located at the axis of the connecting platform. Eight legs are evenly distributed around the circumference of the connecting platform, one of which is connected to a shackle for lifting. One of the collinear legs and the two legs perpendicular to the leg connected to the shackle are each provided with a guide hole and a first threaded hole. The guide hole extends axially along the end cap, and the first threaded hole extends toward the axis of the connecting platform and communicates with the guide hole. A first adjusting bolt is provided in the first threaded hole. The remaining four legs are each provided with a second bolt hole extending axially along the end cap. The guide rod and the adjusting screw are both used to connect to the end face of the pipe fitting. The number and position of the guide rods correspond to the number and position of the guide holes, and the number and position of the adjusting screws correspond to the number and position of the second bolt holes. The first nut is used to be sleeved on the end of the adjusting screw away from the pipe fitting and moves along the adjusting screw.
[0006] Optionally, the end cap mounting and positioning device further includes two connecting pieces and four first screws. The connecting pieces and the platform of the two ring bodies are provided with first connecting holes at their axial upper ends, and the first screws pass through the first connecting holes.
[0007] Optionally, the end cap mounting and positioning device further includes a second screw, and a second connecting hole is provided at the corresponding position of the platform and the connecting platform, and the second screw passes through the second connecting hole.
[0008] Optionally, a second inclined platform is provided on the inner surface of the ring body, the second inclined platform being used to abut against the annular inclined platform on the cover.
[0009] Optionally, the end cap mounting and positioning device further includes a first bolt, a first bolt hole is provided on the connecting platform, the first bolt passes through the first bolt hole, and the threaded end of the first bolt is used to abut against the end face of the flange of the end cap away from the cover plate.
[0010] Optionally, an annular support platform is provided on the end face of the connecting platform away from the counterweight cylinder, and the outer peripheral surface of the support platform is used to abut against the inner peripheral surface of the flange of the end cover.
[0011] Optionally, a second threaded hole is also provided on the two legs perpendicular to the legs connected to the shackle. The second threaded hole is perpendicular to and communicates with the first threaded hole and the guide hole. A second adjusting bolt is provided in the second threaded hole. The end of the second adjusting bolt is used to abut against the guide rod. The second adjusting bolt is used to move along the second threaded hole.
[0012] Optionally, two lifting lugs are evenly distributed at the end of the counterweight cylinder away from the connecting platform, and the lifting lugs are used for lifting.
[0013] Optionally, a second nut and a third nut are also fitted onto the adjusting screw. The second nut and the third nut are used to be positioned between the cover plate and the support leg. The second nut is used to abut against the support leg, and the third nut is used to abut against the pipe fitting. The second nut and the third nut are used to move along the adjusting screw.
[0014] Compared with the prior art, the beneficial effects of the end cap installation and positioning method of the present invention are:
[0015] This invention employs two semi-circular ring bodies, the dimensions of which correspond to the dimensions of the cover. The two ring bodies are fitted together around the circumferential surface of the cover. A platform, also semi-circular, is integrally formed with the ring bodies at the end of the ring body facing the cover. The platform and the ring bodies together form a fixing ring. A counterweight cylinder is fitted around the two enclosing ring bodies, connecting the ring bodies, counterweight ring, and cover into a single unit. The two enclosing ring bodies between the counterweight cylinder and the cover prevent the counterweight cylinder from being directly fitted onto the cover axially, thus preventing damage. A connecting platform, also ring-shaped, is located at the end of the counterweight cylinder facing the cover. Eight legs are evenly distributed around the connecting platform, with an angle of 45 degrees between adjacent legs. One of the legs... The end cap, counterweight cylinder, and retaining ring are connected with shackles. The center of gravity of the entire assembly is located at the axis of the connecting platform. When the assembly of the end cap, counterweight cylinder, retaining ring, connecting platform, and support legs is lifted using the shackles, the axis of the end cap is exactly in the horizontal plane, i.e., in the plane containing the X and Y axes. The end cap can be lifted to a position where the axis of the end cap is collinear with the axis of the pipe fitting. The support legs collinear with the support legs containing the shackles, and the two support legs with a 90-degree angle to the support legs containing the shackles, for a total of three support legs, all have guide holes at their ends. The guide holes extend along the axial direction of the end cap. The four support legs outside the support legs containing the shackles and guide holes each have second bolt holes extending along the axial direction of the end cap. Three guide rods and four adjusting screws are connected to the end face of the pipe fitting. The positions of the guide rods are... The guide holes are positioned one-to-one, and the positions of the adjusting screws and the second bolt holes are also one-to-one. On the end face of the leg containing the three guide holes, away from the connecting platform, there is a first threaded hole. This first threaded hole extends towards the axis of the connecting platform and communicates with the guide holes. Each of the three first threaded holes contains a first adjusting bolt. The first adjusting bolt moves along the first threaded hole and extends into the guide hole to abut against the guide rod. A matching first nut can also be fitted onto the adjusting screw. During operation, the end cap, counterweight cylinder, fixing ring, connecting platform, and legs are lifted as a whole using a shackle until the axis of the end cap is collinear with the axis of the pipe. At this point, the leg containing the shackle and the legs collinear with it are located in the Z-axis direction. The two legs with a 90-degree angle to the leg containing the shackle are located in... In the Y-axis direction, continue hoisting to move the end cap towards the pipe fitting until the guide hole is fitted onto the guide rod and the second bolt hole is fitted onto the adjusting screw. The guide rod and adjusting screw guide the end cap, assisting it in linear movement towards the pipe fitting. Install the first nut onto the adjusting screw from the end furthest from the pipe fitting until it abuts against the surface of the support leg. Continue rotating the first nut towards the pipe fitting to press the end cap into the pipe fitting until the bevels of the end cap and the pipe fitting are aligned axially (X-axis direction). Finally, adjust the positions of the three first adjusting bolts. The first adjusting bolts move along the first threaded holes until they abut against the guide rod. One of the first adjusting bolts abuts against the guide rod in the negative Z-axis direction. Since the guide rod is connected to the pipe fitting, it remains stationary.The position of the support leg in the Z-axis direction can be adjusted by rotating the first adjusting bolt, which also adjusts the position of the end cap on the Z-axis. The other two first adjusting bolts are located in the positive and negative directions of the Y-axis, respectively. Rotating these two bolts adjusts the position of the end cap in the Y-axis direction, aligning the end cap bevel with the pipe fitting bevel in the vertical plane, i.e., the plane containing the Z and Y axes. This completes the end cap installation into the pipe fitting. This invention allows the end cap to be hoisted until its axis is in a horizontal plane, eliminating the need for multiple adjustments to align the end cap with the pipe fitting, facilitating end cap installation and improving installation efficiency. The inclusion of a guide rod, first adjusting bolt, adjusting screw, and first nut facilitates alignment between the pipe fitting bevel and the end cap bevel, improving the accuracy, precision, and efficiency of end cap installation.
[0016] Furthermore, to address the aforementioned problems, the present invention also provides an end cap installation and positioning method. Based on the aforementioned end cap installation and positioning device, the end cap installation and positioning method includes the following steps:
[0017] S1. Connect the guide rod and adjusting screw of the end cap mounting and positioning device to the pipe fitting;
[0018] S2. Fit the two ring bodies of the end cap mounting and positioning devices onto the periphery of the cap body;
[0019] S3. The counterweight cylinder of the end cap mounting and positioning device is sleeved and fixed on the periphery of the two ring bodies;
[0020] S4. Lift the shackle of the end cap mounting and positioning device until the guide hole of the end cap mounting and positioning device is aligned with the guide rod, and the adjusting screw of the end cap mounting and positioning device is aligned with the second bolt hole;
[0021] S5. Push the counterweight cylinder along the guide rod, and screw the first nut of the end cap mounting positioning device toward the pipe fitting into the adjusting screw until the end cap bevel and the pipe fitting bevel are aligned in the axial direction of the pipe fitting.
[0022] S6. Adjust the position of the first adjusting bolt of the end cap mounting and positioning device until the end cap bevel and the pipe fitting bevel are aligned radially on the pipe fitting.
[0023] Compared with the prior art, the beneficial effects of the end cap installation and positioning method of the present invention are roughly the same as those of the end cap installation and positioning device described above, and will not be repeated here. Attached Figure Description
[0024] Figure 1 This is one of the structural schematic diagrams of the end cap mounting and positioning device according to an embodiment of the present invention;
[0025] Figure 2 This is a second schematic diagram of the end cap mounting and positioning device according to an embodiment of the present invention;
[0026] Figure 3 for Figure 2 Enlarged view of point I;
[0027] Figure 4 for Figure 2 Enlarged view of section II;
[0028] Figure 5 This is the third schematic diagram of the end cap mounting and positioning device according to an embodiment of the present invention;
[0029] Figure 6 This is the fourth structural schematic diagram of the end cap mounting and positioning device according to an embodiment of the present invention;
[0030] Figure 7 This is the fifth schematic diagram of the end cap mounting and positioning device according to an embodiment of the present invention;
[0031] Figure 8 This is a flowchart of the end cap installation and positioning method according to an embodiment of the present invention.
[0032] Explanation of reference numerals in the attached figures:
[0033] 1-End cap; 11-Cap body; 12-Flange; 13-Cover plate; 14-End cap bevel; 15-Annular inclined platform; 2-Pipe fitting; 21-Pipe fitting bevel; 31-Annular body; 311-Second inclined platform; 32-Platform; 33-Connecting piece; 34-First screw; 41-Counterweight cylinder; 42-Connecting platform; 43-Leg; 44-Shackle; 45-Guide hole; 461-First adjusting bolt; 462-Second adjusting bolt; 47-Second bolt hole; 48-Second screw; 49-Support platform; 5-First bolt; 61-Guide rod; 62-Adjusting screw; 63-First nut; 64-Second nut; 65-Third nut; 7-Lifting lug. Detailed Implementation
[0034] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0035] It should be noted that in the description of this invention, the orientations or positional relationships indicated by terms such as "upper," "lower," "left," "right," "top," "bottom," "front," "back," "inner," and "outer" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention. They are not intended to indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this invention.
[0036] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.
[0037] Furthermore, although specific embodiments have been described herein, it should be understood that these embodiments are merely examples of the principles and applications of the invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.
[0038] To solve the above problems, such as Figures 1 to 3 and Figure 5 As shown, the present invention provides an end cap installation and positioning device, characterized in that it includes a counterweight structure, a guide rod 61, an adjusting screw 62, a fixing ring, and a first nut 63. The fixing ring includes a ring body 31, which is a semi-circular ring. An annular platform 32 is provided on the periphery of the end face of the ring body 31. Two ring bodies 31 are used to surround and fit around the periphery of the end cap 11. The counterweight structure includes a counterweight cylinder 41 fitted on the periphery of the ring body surrounded by the two ring bodies 31, and an annular connecting platform 42 connected to one end of the counterweight cylinder 41 facing the end cap 13. The center of gravity of the counterweight structure, the end cap 1, and the fixing ring as a whole is located at the axis of the connecting platform 42. Eight support legs 43 are evenly distributed around the periphery of the connecting platform 42. One of the support legs 43 is connected to a shackle 44 for lifting. One of the collinear support legs 43 and the two support legs 43 perpendicular to the support leg 43 connected to the shackle 44 are provided with guide holes 45 and first threaded holes. The guide holes 45 extend axially along the end cap 1. The first threaded holes extend toward the axis of the connecting platform 42 and communicate with the guide holes 45. A first adjusting bolt 461 is provided in the first threaded hole. The remaining four support legs 43 are provided with second bolt holes 47 extending axially along the end cap 1. The guide rods 61 and the adjusting screws 62 are used to connect to the end face of the pipe fitting 2. The number and position of the guide rods 61 correspond to the number and position of the guide holes 45. The number and position of the adjusting screws 62 correspond to the number and position of the second bolt holes 47. The first nut 63 is used to be sleeved on the end of the adjusting screw 62 away from the pipe fitting 2 and moves along the adjusting screw 62.
[0039] In this embodiment, two semi-circular ring bodies 31 are provided, the size of which corresponds to the size of the cover 11. The two ring bodies 31 are fitted around the circumferential surface of the cover 11. A platform 32 is provided on the circumferential side of the end of the ring body 31 facing the cover plate 13. The platform 32 is semi-circular and is integrally formed with the ring body 31. The platform 32 and the ring body 31 form a fixing ring. The counterweight cylinder 41 is fitted around the two surrounding ring bodies 31, connecting the ring body 31, the counterweight ring, and the cover 11 into a whole. The two surrounding ring bodies 31 between the counterweight cylinder 41 and the cover 11 can prevent the counterweight cylinder 41 from being directly fitted onto the cover 11 from the axial direction, thus preventing damage to the cover 11. The counterweight cylinder 41 faces the cover plate 13. One end of the fitting has a connecting platform 42, which is annular. Eight legs 43 are evenly distributed around the connecting platform 42, with an angle of 45 degrees between adjacent legs 43. One of the legs 43 is connected to a shackle 44 at its end. The center of gravity of the end cap 1, counterweight cylinder 41, fixing ring, and the entire assembly is located at the axis of the connecting platform 42. When the entire assembly consisting of the end cap 1, counterweight cylinder 41, fixing ring, connecting platform 42, and legs 43 is lifted using the shackle 44, the axis of the end cap 1 is exactly in the horizontal plane, i.e., in the plane containing the X and Y axes. The end cap 1 can be lifted to a position where the axis of the end cap 1 is collinear with the axis of the fitting 2, including the legs 43 that are collinear with the legs 43 where the shackle 44 is located, and the two legs 43 that have an angle of 90 degrees with the legs 43 where the shackle 44 is located. A total of three support legs 43 have guide holes 45 at their ends, which extend axially along the end cap 1. The four support legs 43 outside the shackle 44 and the support legs with guide holes 45 have second bolt holes 47, which also extend axially along the end cap 1. Three guide rods 61 and four adjusting screws 62 are connected to the end face of the pipe fitting 2. The positions of the guide rods 61 correspond one-to-one with the positions of the guide holes 45, and the positions of the adjusting screws 62 correspond one-to-one with the positions of the second bolt holes 47. The end faces of the support legs 43 with the three guide holes 45 away from the connecting platform 42 also have first threaded holes. These first threaded holes extend towards the axis of the connecting platform 42 and communicate with the guide holes 45. Each of the three first threaded holes contains a first adjusting bolt. 461. The first adjusting bolt 461 moves along the first threaded hole and extends into the guide hole 45 to abut against the guide rod 61. The adjusting screw 62 can also be fitted with a matching first nut 63. During operation, the end cover 1, counterweight cylinder 41, fixing ring, connecting platform 42, and support leg 43 are lifted as a whole by the shackle 44 until the axis of the end cover 1 is collinear with the axis of the pipe fitting 2. At this time, the support leg 43 where the shackle 44 is located and the support leg 43 collinear with the support leg 43 where the shackle 44 is located are located in the Z-axis direction, and the two support legs 43 with an angle of 90 degrees with the support leg 43 where the shackle 44 is located are located in the Y-axis direction. The lifting continues to move the end cover 1 toward the pipe fitting 2 until the guide hole 45 is fitted onto the guide rod 61 and the second bolt hole 47 is fitted onto the adjusting screw 62.Guide rod 61 and adjusting screw 62 guide end cap 1, assisting end cap 1 in linear movement toward pipe fitting 2. First nut 63 is installed on adjusting screw 62 from the end away from pipe fitting 2 until it abuts against the surface of support leg 43. Continuing to rotate first nut 63 toward pipe fitting 2 presses end cap 1 into pipe fitting 2 until end cap bevel 14 and pipe fitting bevel 21 are aligned axially (X-axis) of pipe fitting 2. Finally, the positions of the three first adjusting bolts 461 are adjusted. First adjusting bolts 461 move along the first threaded hole until they abut against guide rod 61. One of the first adjusting bolts 461 is positioned relative to the guide rod 61 in the negative Z-axis direction. Since guide rod 61 is connected to pipe fitting 2 and remains stationary, it can be adjusted by rotating the first adjusting bolt 461. The position of the support leg 43 in the Z-axis direction is the same as the position of the adjusting end cap 1 on the Z-axis. The two first adjusting bolts 461 are located in the positive and negative directions of the Y-axis, respectively. By rotating these two first adjusting bolts 461, the position of the end cap 1 in the Y-axis direction can be adjusted, aligning the end cap bevel 14 with the pipe fitting bevel 21 in the vertical plane, i.e., the plane containing the Z and Y axes. This completes the operation of installing the end cap 1 into the pipe fitting 2. This invention can hoist the end cap 1 until its axis is in the horizontal plane, eliminating the need for multiple adjustments to align the end cap 1 with the pipe fitting, facilitating the installation of the end cap 1 into the pipe fitting 2, and improving the efficiency of end cap 1 installation. The guide rod 61, the first adjusting bolts 461, the adjusting screw 62, and the first nut 63 facilitate the alignment of the pipe fitting bevel 21 and the end cap bevel 14, improving the accuracy, precision, and efficiency of end cap 1 installation.
[0040] Specifically, multiple connection holes are provided on the end face of the pipe fitting 2. The connection holes correspond to the adjusting screw 62 and the guide rod 61. The guide rod 61 and the adjusting screw 62 are inserted into the connection holes and connected to the pipe fitting 2.
[0041] Optionally, such as Figure 5 As shown, the end cap mounting and positioning device also includes two connecting pieces 33 and four first screws 34. The connecting pieces 33 and the platform 32 of the two ring bodies 31 are provided with first connecting holes at their axial upper ends, and the first screws 34 pass through the first connecting holes.
[0042] In this embodiment, by opening first connecting holes at the axial ends of both platform 32 and providing two connecting pieces 33, and also opening first connecting holes at both ends of the two connecting pieces 33, when the two platform 32 are closed together, the two connecting pieces 33 are respectively attached to the connection points on the periphery of the two platform 32. The two ends of the connecting pieces 33 are respectively located on the end faces of the two platform 32 away from the ring body 31. The first connecting holes on the two connecting pieces 33 are aligned with the first connecting holes on the two platform 32. Four first screws 34 are respectively inserted through the eight first connecting holes to connect the two platform 32 together, that is, to connect the two ring bodies 31 together. The fixing ring can be fixed to the periphery of the cover 11, improving the stability of the connection between the fixing ring and the end cover 1.
[0043] Optionally, such as Figure 1 and Figure 7 As shown, the end cap mounting and positioning device also includes a second screw 48. A second connecting hole is provided at the corresponding position of the platform 32 and the connecting platform 42, and the second screw 48 passes through the second connecting hole.
[0044] In this embodiment, by opening second connecting holes at corresponding positions on the platform 32 and the connecting platform 42, and setting second screws 48 to pass through the two second connecting holes, the platform 32 and the connecting platform 42 are connected together, that is, the counterweight cylinder 41 and the fixing ring are connected together, thereby improving the stability of the connection between the counterweight cylinder 41 and the fixing ring.
[0045] Specifically, there can be multiple second screws 48, and correspondingly multiple second connecting holes. The multiple second screws 48 are evenly distributed around the periphery of the platform 32 to improve the stability of the connection between the counterweight cylinder 41 and the fixing ring.
[0046] Optionally, such as Figure 2 and Figure 4 As shown, a second inclined platform 311 is provided on the inner surface of the ring body 31, and the second inclined platform 311 is used to abut against the annular inclined platform 15 on the cover body 11.
[0047] In this embodiment, a second inclined platform 311 is provided on the inner circumferential surface of the ring body 31. The shape of the second inclined platform 311 corresponds to the annular inclined platform 15 on the cover 11. The distance between the end of the second inclined platform 311 near the platform surface 32 and the axis of the ring body 31 is less than the distance between the end of the second inclined platform 311 away from the platform surface 32 and the axis of the ring body 31. When the two ring bodies 31 are fitted together on the cover 11, the second inclined platform 311 and the annular inclined platform 15 abut against each other. The second inclined platform 311 limits the relative position of the cover 11 and the ring body 31 in the axial direction of the cover 11, preventing the end cap 1 from moving away from the counterweight cylinder 41 relative to the fixed ring.
[0048] Optionally, such as Figure 1 , Figure 2 and Figure 7 As shown, the end cap mounting and positioning device also includes a first bolt 5. A first bolt hole is provided on the connecting platform 42. The first bolt 5 passes through the first bolt hole. The threaded end of the first bolt 5 is used to abut against the end face of the flange 12 of the end cap 1 away from the cover plate 13.
[0049] In this embodiment, a first bolt hole is provided on the connecting platform 42, the position of which corresponds to the position of the flange 12. The first bolt 5 is inserted into the first bolt hole from the side away from the flange 12 until the first bolt 5 abuts against the end of the flange 12 away from the cover plate 13. The two ends of the first bolt 5 are respectively connected to the flange 12 and the connecting platform 42. The first bolt 5 can limit the position of the end cover 1 in the axial direction to prevent the end cover 1 from moving towards the counterweight cylinder 41. The first bolt 5 can eliminate the movable gap between the connecting platform 42 and the end cover 1, ensuring that the second inclined platform 311 and the annular inclined platform 15 are always in contact.
[0050] Optionally, such as Figure 2 and Figure 6 As shown, an annular support platform 49 is also provided on the end face of the connecting platform 42 away from the counterweight cylinder 41. The outer peripheral surface of the support platform 49 is used to abut against the inner peripheral surface of the flange 12 of the end cover.
[0051] In this embodiment, a support platform 49 is provided on the end face of the connecting platform 42 away from the counterweight cylinder 41. The support platform 49 is annular and coaxially arranged with the counterweight cylinder 41. The outer peripheral surface of the connecting platform 42 can abut against the inner peripheral surface of the flange 12, which facilitates the positioning of the counterweight cylinder 41 when installing it and makes it easy to fit the counterweight cylinder 41 onto the fixing ring.
[0052] Optionally, such as Figure 1 and Figure 5 As shown, the two legs 43 perpendicular to the legs 43 connected to the shackle 44 are also provided with second threaded holes. The second threaded holes are perpendicular to and connected to the first threaded holes and the guide holes 45. A second adjusting bolt 462 is provided in the second threaded holes. The end of the second adjusting bolt 462 is used to abut against the guide rod 61. The second adjusting bolt 462 is used to move along the second threaded holes.
[0053] In this embodiment, two second threaded holes are provided on each of the two legs 43 that are at a 90° angle with the leg 43 with the shackle 44. The two second threaded holes on the same leg 43 are respectively provided on two surfaces adjacent to the end face where the first threaded hole is provided, and the two second threaded holes and the first threaded hole are located in the same plane. The two second threaded holes extend along the Z-axis direction and are provided with second adjusting bolts 462. The second adjusting bolts 462 can move along the second threaded holes until they abut against the guide rod 61. When adjusting the position of the first adjusting bolt 461, the position of the second adjusting bolt 462 is adjusted at the same time. It works in conjunction with the first adjusting bolt 461 on the leg 43 that is collinear with the leg 43 connected to the shackle 44 to adjust the position of the end cap 1 in the Z-axis direction, so that the end cap bevel 14 and the pipe bevel 21 are aligned in the vertical plane, that is, in the plane where the Z-axis and Y-axis are located.
[0054] Optionally, such as Figure 1 , Figure 2 and Figure 7 As shown, two lifting lugs 7 are evenly distributed at the end of the counterweight cylinder 41 away from the connecting platform 42, and the lifting lugs 7 are used for lifting.
[0055] In this embodiment, two lifting lugs 7 are provided at the end of the counterweight cylinder 41 away from the connecting platform 42. The two lifting lugs 7 are symmetrical about the axis of the counterweight cylinder 41. During operation, the end cap 1 is placed on a horizontal surface. After the fixing ring is installed, the counterweight cylinder 41 is lifted by the two lifting lugs 7. At this time, the counterweight cylinder 41 is in the vertical direction. After the counterweight cylinder 41 is fitted around the fixing ring, it is convenient to install the second screw 48 to connect the platform 32 and the connecting platform 42 together, that is, to connect the fixing ring and the counterweight cylinder 41 together.
[0056] Specifically, during operation, the end cap 1 is initially placed on a horizontal surface. After the fixing ring is fitted onto the end cap 1, the counterweight cylinder 41 is first lifted by the lifting ring 7. In this way, the axial direction of the counterweight cylinder 41, the end cap 1, and the fixing ring are all in the vertical direction, which makes it easy for the counterweight cylinder 41 to be fitted around the fixing ring. After the counterweight cylinder 41 is connected to the fixing ring, the counterweight cylinder 41 with its axis in the vertical direction is lifted by the lifting shackle 44, so that the axis of the counterweight cylinder 41, the fixing ring, and the end cap 1 as a whole becomes in the horizontal direction. The end cap 1 can be lifted to a position where the axis of the end cap 1 is collinear with the axis of the pipe fitting 2, which makes it easy to install the end cap 1 into the pipe fitting 2.
[0057] Optionally, such as Figure 2 As shown, a second nut 64 and a third nut 65 are also fitted on the adjusting screw 62. The second nut 64 and the third nut 65 are used to be positioned between the cover plate 13 and the support leg 43. The second nut 64 is used to abut against the support leg 43, and the third nut 65 is used to abut against the pipe fitting 2. The second nut 64 and the third nut 65 are used to move along the adjusting screw 62.
[0058] In this embodiment, a second nut 64 and a third nut 65 are fitted onto the adjusting screw 62, with the third nut 63 close to the pipe fitting 2. Before lifting the shackle 44, the second nut 64 and the third nut 65 are installed on the adjusting screw 62. The third nut 65 moves along the adjusting screw 62 until it abuts against the pipe fitting 2, thus fixing the adjusting screw 62 onto the pipe fitting 2. The second nut 64 works in conjunction with the first nut 63. After adjusting the first nut 63 until the end cap bevel 14 and the pipe fitting bevel 21 are aligned in the axial direction of the pipe fitting 2, i.e., the X-axis direction, the second nut 64 is moved until the second nut 64 and the first nut 63 abut against the two sides of the support leg 43, thus fixing the adjusting screw 62 to the support leg 43 and preventing the support leg 43 from moving relative to the adjusting screw 62.
[0059] like Figure 8 As shown, another embodiment of the present invention provides an end cap installation and positioning method based on the above-described end cap installation and positioning device. The end cap installation and positioning method includes the following steps:
[0060] S1. Connect the guide rod 61 and adjusting screw 62 of the end cap mounting and positioning device to the pipe fitting 2;
[0061] S2. Fit the two ring bodies 31 of the end cap mounting and positioning devices onto the periphery of the cover body 11;
[0062] S3. The counterweight cylinder 41 of the end cap mounting and positioning device is sleeved and fixed on the periphery of the two ring bodies 31;
[0063] S4. Lift the shackle 44 of the end cap mounting and positioning device until the guide hole 45 of the end cap mounting and positioning device is aligned with the guide rod 61, and the adjusting screw 62 of the end cap mounting and positioning device is aligned with the second bolt hole 47.
[0064] S5. Push the counterweight cylinder 41 along the guide rod 61, and screw the first nut 63 of the end cap mounting positioning device into the adjusting screw 62 in the direction of the pipe fitting 2, until the end cap bevel 14 and the pipe fitting bevel 21 are aligned in the axial direction of the pipe fitting 2.
[0065] S6. Adjust the position of the first adjusting bolt 461 of the end cap mounting and positioning device until the end cap bevel 14 and the pipe fitting bevel 21 are aligned radially on the pipe fitting 2.
[0066] The end cap installation and positioning method described in this invention has roughly the same beneficial effects as the end cap installation and positioning device described above, and will not be repeated here.
[0067] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.
Claims
1. An end cap mounting and positioning device, characterized in that, The system includes a counterweight structure, a guide rod (61), an adjusting screw (62), a fixing ring, and a first nut (63). The fixing ring includes a ring body (31), which is a semi-circular ring. The ring body (31) has an annular platform (32) on its circumferential side. The two ring bodies (31) are used to surround and fit around the circumferential surface of the end cap (11). The counterweight structure includes a counterweight cylinder (41) fitted around the circumferential surface of the ring body surrounded by the two ring bodies (31) and a connection to... The counterweight cylinder (41) has an annular connecting platform (42) at one end facing the cover plate (13) of the end cap. The center of gravity of the counterweight structure, the end cap (1), and the fixing ring as a whole is located at the axis of the connecting platform (42). Eight legs (43) are evenly distributed around the periphery of the connecting platform (42). One of the legs (43) is connected to a shackle (44), which is used for lifting. Another leg (43) is collinear with the leg (43) connected to the shackle (44). The end cap (1) and the two legs (43) perpendicular to the leg (43) connected to the shackle (44) are provided with guide holes (45) and first threaded holes. The guide holes (45) extend axially along the end cap (1), and the first threaded holes extend toward the axis of the connecting platform (42) and communicate with the guide holes (45). The first threaded holes are provided with first adjusting bolts (461). The remaining four legs (43) are provided with guide holes along the axis of the end cap (1). The extended second bolt hole (47), the guide rod (61) and the adjusting screw (62) are both used to connect to the end face of the pipe fitting (2), the number and position of the guide rod (61) correspond to the number and position of the guide hole (45), the number and position of the adjusting screw (62) correspond to the number and position of the second bolt hole (47), and the first nut (63) is used to be sleeved on the end of the adjusting screw (62) away from the pipe fitting (2) and move along the adjusting screw (62).
2. The end cap mounting and positioning device according to claim 1, characterized in that, It also includes two connecting pieces (33) and four first screws (34). The connecting pieces (33) and the platform (32) of the two ring bodies (31) are provided with first connecting holes at their upper axial ends. The first screws (34) pass through the first connecting holes.
3. The end cap mounting and positioning device according to claim 1, characterized in that, It also includes a second screw (48), and a second connecting hole is provided at the corresponding position of the table (32) and the connecting table (42), and the second screw (48) passes through the second connecting hole.
4. The end cap mounting and positioning device according to claim 1, characterized in that, The inner surface of the ring body (31) is provided with a second inclined platform (311), which is used to abut against the annular inclined platform (15) on the cover (11).
5. The end cap mounting and positioning device according to claim 1, characterized in that, It also includes a first bolt (5), and a first bolt hole is provided on the connecting platform (42). The first bolt (5) passes through the first bolt hole, and the threaded end of the first bolt (5) is used to abut against the end face of the flange (12) of the end cover (1) away from the cover plate (13).
6. The end cap mounting and positioning device according to claim 1, characterized in that, The connecting platform (42) is further provided with an annular support platform (49) on the end face away from the counterweight cylinder (41), and the outer peripheral surface of the support platform (49) is used to abut against the inner peripheral surface of the flange (12) of the end cover (1).
7. The end cap mounting and positioning device according to claim 1, characterized in that, Two support legs (43) perpendicular to the support leg (43) connected to the shackle (44) are also provided with second threaded holes. The second threaded holes are perpendicular to and communicate with the first threaded hole and the guide hole (45). A second adjusting bolt (462) is provided in the second threaded hole. The end of the second adjusting bolt (462) is used to abut against the guide rod (61). The second adjusting bolt (462) is used to move along the second threaded hole.
8. The end cap mounting and positioning device according to claim 1, characterized in that, Two lifting lugs (7) are evenly distributed at one end of the counterweight cylinder (41) away from the connecting platform (42), and the lifting lugs (7) are used for lifting.
9. The end cap mounting and positioning device according to claim 1, characterized in that, The adjusting screw (62) is also fitted with a second nut (64) and a third nut (65). The second nut (64) and the third nut (65) are used to be positioned between the cover plate (13) and the support leg (43). The second nut (64) is used to abut against the support leg (43), and the third nut (65) is used to abut against the pipe fitting (2). The second nut (64) and the third nut (65) are used to move along the adjusting screw (62).
10. A method for installing and positioning an end cap, characterized in that, Based on the end cap mounting and positioning device according to any one of claims 1 to 9, the end cap mounting and positioning method includes the following steps: S1. Connect the guide rod (61) and adjusting screw (62) of the end cap mounting and positioning device to the pipe fitting (2); S2. Fit the two ring bodies (31) of the end cap mounting and positioning devices onto the periphery of the cap body (11); S3. The counterweight cylinder (41) of the end cap mounting and positioning device is sleeved and fixed on the periphery of the two ring bodies (31); S4. Lift the shackle (44) of the end cap mounting and positioning device until the guide hole (45) of the end cap mounting and positioning device is aligned with the guide rod (61) and the adjusting screw (62) of the end cap mounting and positioning device is aligned with the second bolt hole (47). S5. Push the counterweight cylinder (41) along the guide rod (61) and screw the first nut (63) of the end cap mounting positioning device into the adjusting screw (62) in the direction of the pipe fitting (2) until the end cap bevel (14) and the pipe fitting bevel (21) are aligned in the axial direction of the pipe fitting (2). S6. Adjust the position of the first adjusting bolt (461) of the end cap mounting positioning device until the end cap bevel (14) and the pipe fitting bevel (21) are aligned radially on the pipe fitting (2).