CN219900258U - Local repair tool for flange seal line waterline - Google Patents
Local repair tool for flange seal line waterline Download PDFInfo
- Publication number
- CN219900258U CN219900258U CN202321168711.0U CN202321168711U CN219900258U CN 219900258 U CN219900258 U CN 219900258U CN 202321168711 U CN202321168711 U CN 202321168711U CN 219900258 U CN219900258 U CN 219900258U
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- flange
- tool
- cutter
- central shaft
- positioning rod
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- 238000000034 method Methods 0.000 claims abstract description 4
- 230000000712 assembly Effects 0.000 claims description 10
- 238000000429 assembly Methods 0.000 claims description 10
- 238000005096 rolling process Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000003466 welding Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model relates to a local repair tool for a flange seal line, which can directly repair the seal line of a flange surface locally on line without detaching the flange from equipment, and has the advantages of quick and simple operation and low cost. The technical proposal is as follows: a local repair tool for a flange seal line comprises a turning tool for turning the seal line; the method is characterized in that: the device also comprises a positioning bracket, a cutter positioning rod, a cutter clamping device and a jack-up bolt assembly, wherein the positioning bracket is arranged on the end face of the flange and provided with a central shaft, the cutter positioning rod is rotatably sleeved on the central shaft, the cutter clamping device is used for fixing the turning tool on the cutter positioning rod, and the jack-up bolt assembly is arranged on the cutter clamping device to keep the turning of the cutter stable; the central shaft is coaxially arranged with the flange.
Description
Technical Field
The utility model relates to a fixture, in particular to a local repair tool for a flange seal line.
Background
In a large-diameter chemical container or pressure container (such as a condenser of a steam turbine), the seal line of the flange (see fig. 2) can improve the tightness of the convex flange, so that the flange with the seal line is widely adopted. The product manufacturing process is used, and if the protection is not in place, the situation that the moire waterline is damaged can occur. Significant time and expense costs occur whether the flange is replaced or the tooling is machined as a whole. For this reason, N216803144U provides a frock is restoreed to sealed face waterline of flange, and it includes flange and stopper, the fixed welding of upper surface of stopper has the sleeve, telescopic middle part activity is run through there is the mobile jib, the screw that locks is installed to telescopic upper portion screw thread, the fixed welding of upper end of locking screw has the handle, the pole is drawn to the one end screw thread installation of mobile jib, draw the outside lower part screw thread installation of pole and the lock nut of mobile jib contact, one side of stopper runs through there is the reference column, the downside outward flange of reference column is contradicted with the outward flange. The tool can repair the water line of the flange sealing surface under the condition that the flange is not detached. However, in actual use, the stability of the scribing rod is not ensured because the scribing rod is positioned only by the outer edge of the flange, so that the repair quality of the waterline is affected; in addition, the method has higher skill requirements on repairmen, and is difficult to popularize and apply.
Disclosure of Invention
The utility model aims to overcome the defects of the background technology, and provides a large-diameter flange waterline local repair tool which can directly repair the seal waterline of a flange surface locally on line without detaching the flange from equipment, and has the advantages of quick and simple operation and low cost.
The technical scheme provided by the utility model is as follows:
a local repair tool for a flange seal line comprises a turning tool for turning the seal line; the method is characterized in that: the device also comprises a positioning bracket, a cutter positioning rod, a cutter clamping device and a jack-up bolt assembly, wherein the positioning bracket is arranged on the end face of the flange and provided with a central shaft, the cutter positioning rod is rotatably sleeved on the central shaft, the cutter clamping device is used for fixing the turning tool on the cutter positioning rod, and the jack-up bolt assembly is arranged on the cutter clamping device to keep the turning of the cutter stable; the central shaft is coaxially arranged with the flange.
The positioning bracket comprises two pairs of clamping rods which are crossed into a cross shape, and each pair of clamping rods comprises two rods which are parallel to each other and keep a distance; the central shaft is fixed at the crossing center of the two pairs of clamping rods and extends outwards to form an overhanging section, the two pairs of clamping rods also clamp the central shaft through clamping bolt assemblies respectively, and two screw assemblies for connecting flange fixing holes are respectively arranged so as to be fixed on the end face of the flange.
One end of the cutter positioning rod is provided with a through hole and is rotatably sleeved on the overhanging section of the central shaft, and the other end of the cutter positioning rod is provided with the cutter clamping device.
The cross section of the cutter positioning rod is rectangular.
A rectangular groove which is embedded with the cutter positioning rod is formed in the cutter clamping device; the groove wall of the rectangular groove is provided with a fastening bolt for jacking the cutter positioning rod.
One end of the cutter clamping device is made into a hook shape, and the hook is bent from top to bottom after extending in the outer diameter direction of the flange so as to be enclosed on the upper side and the lower side of the flange edge; the jack bolt component is arranged at the hook tip part of the hook to resist the lower side surface of the flange edge when in use, so as to counteract the reaction force generated by turning of the turning tool.
The jack bolt assembly comprises a screw rod, the top end of which is provided with a bearing, the screw rod is vertically positioned in a screw hole at the hook tip part of the hook and is provided with a lock nut for locking the screw rod; the bearing is positioned at the top end of the screw rod through a bearing rod which is horizontally arranged, and the outer ring of the bearing is in rolling fit with the lower side face of the flange.
The beneficial effects of the utility model are as follows:
the utility model can effectively and directly repair the flange seal line with large diameter on the condenser equipment, thereby saving the larger cost caused by disassembling the flange; the operation is quick and simple, the repairing step is simple, and the operation is labor-saving; the skill requirements for operators are not high.
Drawings
Fig. 1 is a schematic view of the use state of the embodiment of the present utility model (top view of fig. 3).
Fig. 2 is a schematic diagram of the F-F structure of fig. 1.
FIG. 3 is a schematic view of the A-A structure of FIG. 1.
Fig. 4 is a schematic diagram of the B-B structure of fig. 1.
Fig. 5 is a schematic diagram of the D-D structure of fig. 1.
Fig. 6 is a schematic view of the E-E structure of fig. 1.
Reference numerals in the drawings: 1. a screw assembly; 2. a clamping rod; 3. a central shaft; 4. a clamping bolt assembly; 5. a cutter positioning rod; 6. a cutter clamping device; 7. a fastening bolt; 8. turning tools; 9. a turning tool fastens the bolt; 10. a bearing; 11. a jack bolt assembly; 12. a condenser flange; 12.1, flange waterline.
Detailed Description
The local repair tool for the flange seal line shown in the drawing comprises a turning tool 8 for turning the line; the device also comprises a positioning bracket with a central shaft 3, a cutter positioning rod 5 rotatably sleeved on the central shaft, a cutter clamping device 6 for fixing the turning tool on the cutter positioning rod, and a jacking bolt group 11 which is arranged on the cutter clamping device and used for keeping the turning of the cutter stable; when the waterline is turned, the central shaft and the flange are coaxially arranged.
In the positioning bracket, two pairs of clamping rods are stacked in a crossed manner, each pair of clamping rods comprises two rods with the same structure, and the two rods are parallel to each other and keep a distance; the central shaft is inserted and positioned at the crossing center of the two pairs of clamping rods, and an overhanging section (see figure 3) extends out of the flange, the two pairs of clamping rods also clamp the central shaft through two clamping bolt assemblies 4 respectively, and the two screw assemblies 1 respectively connected with the flange fixing holes are fixed on the end face of the flange during the repair waterline operation. As can be seen from the figure: the clamping bolt assembly is used to clamp the central shaft and the screws in the screw assembly, thus maintaining this spacing between the two bars in each pair of clamping bars. The screw assembly comprises screws (preferably double-headed screws) and nuts, and when the double-headed screws are used, each double-headed screw is required to be provided with two nuts; the clamping bolt assembly comprises a stud and two corresponding nuts. The central shaft comprises a stud and 3 nuts, wherein the two nuts are used for fixing the stud on the two pairs of clamping rods; the third nut is used for movably sleeving the cutter positioning rod on the overhanging section of the central shaft, so that the cutter positioning rod can only rotate and cannot move in the axial direction of the central shaft.
One end of the cutter positioning rod is provided with a through hole which is matched with the overhanging section of the central shaft, and the cutter positioning rod is sleeved on the overhanging section through the through hole and can rotate around the overhanging section; the other end of the cutter positioning rod is connected with a cutter clamping device 6 with the turning tool; when the cutter positioning rod rotates around the overhanging section, a turning tool arranged on the cutter clamping device can repair the waterline.
Further, the cross section of the cutter positioning rod is rectangular; rectangular grooves which are embedded with the cutter positioning rods are formed in the cutter clamping devices, so that the cutter clamping devices can move along the length direction of the cutter positioning rods. Screw holes are formed in the groove walls of the rectangular grooves, and fastening bolts 7 can be positioned in the screw holes and press the cutter positioning rods in a propping mode, so that the cutter clamping device is fixedly connected with the cutter positioning rods.
As can be seen from the figure: one end of the cutter clamping device is made into a hook shape, and the hook extends towards the outer diameter direction of the flange and then bends back from top to bottom, so that the cutter clamping device can be enclosed on the upper side and the lower side of the flange when in use; the jack bolt component is arranged at the hook tip part of the hook and is used for resisting the lower side (back) of the flange when in use so as to counteract the reaction force generated when the turning tool turns.
The jack bolt assembly comprises a screw rod, the top end of which is provided with a bearing, the screw rod is vertically positioned in a screw hole at the hook tip part of the hook and is provided with a lock nut for locking the screw rod; the bearing is positioned at the top end of the screw rod through a bearing rod which is horizontally arranged, and the outer ring of the bearing is in rolling fit with the lower side (back) of the flange when in use.
The working principle of the utility model is as follows:
after the flange waterline is damaged, the damaged part is filled by repair welding, then the protruded part of repair welding is polished to be flush with the original sealing surface, and then the repair can be carried out by adopting the utility model according to the following steps:
1. placing the four screw rod assemblies 1 into four screw holes of 0 degree, 90 degree, 180 degree and 270 degree on a flange, and pre-tightening until the screw rod assemblies do not fall off;
2. the two pairs of clamping bars 2 are divided into two groups, each clamping bar pair clamps 2 screw assemblies, respectively, and the screw assemblies are retightened.
3. The central shaft 3 is placed in a central hole formed by two pairs of clamping rods, and 2 nuts on the central shaft are fastened;
4. the clamping bolt assembly 4 is tightened to tighten the central shaft by clamping the two bars of each pair of clamping bars.
5. One end of the cutter positioning rod 5 is sleeved on the overhanging end of the central shaft 3 and then is slightly screwed by a nut without shaking;
6. the cutter clamping device 6 is arranged on the cutter positioning rod, and then the fastening bolt 7 is screwed to pre-tighten the cutter clamping device, so that the cutter clamping device and the cutter positioning rod are pre-estimated and fixed;
7. mounting a turning tool 8 on the tool mounting clamp, and pre-tightening a turning tool fastening bolt 9;
8. adjusting the position of a turning tool by taking an undamaged flange seal line as a reference, and fastening;
9. adjusting nuts on the jack-up bolt assembly 11 to enable the bearing 10 to be tightly pressed with the back surface of the flange;
10. the tool positioning rod rotates around the tool positioning rod by manual back and forth repeated moving, so that the turning of the moire waterline is performed;
11. and (5) repeating the steps 8 to 10, and turning the micro-pattern waterline of all the damaged positions.
Claims (7)
1. A local repair tool for a flange seal line water line comprises a turning tool (8) for turning the water line; the method is characterized in that: the tool positioning device also comprises a positioning bracket, a tool positioning rod (5), a tool clamping device (6) and a jack bolt assembly (11), wherein the positioning bracket is arranged on the end face of the flange and provided with a central shaft (3), the tool positioning rod can rotate around the central shaft, the tool clamping device is used for fixing the turning tool on the tool positioning rod, and the jack bolt assembly (11) is arranged on the tool clamping device and used for keeping stable cutting of the tool; the central shaft is coaxially arranged with the flange.
2. The flange seal waterline local repair tool of claim 1, wherein: the positioning bracket comprises two pairs of clamping rods (2) which are crossed into a cross shape, and each pair of clamping rods comprises two rods which are parallel to each other and keep a distance; the central shaft is fixed at the crossing center of the two pairs of clamping rods and extends outwards to form an overhanging section, the two pairs of clamping rods also clamp the central shaft through clamping bolt assemblies (4) respectively, and two screw assemblies for connecting flange fixing holes are respectively arranged so as to be fixed on the end face of the flange.
3. The flange seal waterline local repair tool of claim 2, wherein: one end of the cutter positioning rod is provided with a through hole and is rotatably sleeved on the overhanging section of the central shaft, and the other end of the cutter positioning rod is provided with the cutter clamping device.
4. A flange seal waterline local repair tool according to claim 3, wherein: the cross section of the cutter positioning rod is rectangular.
5. The flange seal waterline local repair tool of claim 4, wherein: a rectangular groove which is embedded with the cutter positioning rod is formed in the cutter clamping device; the groove wall of the rectangular groove is provided with a fastening bolt (7) for jacking the cutter positioning rod.
6. The flange seal waterline local repair tool of claim 5, wherein: one end of the cutter clamping device is made into a hook shape, and the hook is bent back from top to bottom after extending in the outer diameter direction of the flange so as to be enclosed on the upper side and the lower side of the flange edge; the jack bolt component is arranged at the hook tip part of the hook so as to resist the lower side surface of the flange edge when in use and counteract the reaction force generated when the turning tool cuts.
7. The flange seal waterline local repair tool of claim 6, wherein: the jack bolt assembly comprises a screw rod, the top end of which is provided with a bearing (10), the screw rod is vertically positioned in a screw hole at the hook tip part of the hook and is provided with a locking nut for locking the screw rod; the bearing is positioned at the top end of the screw rod through a bearing rod which is horizontally arranged, and the outer ring of the bearing is in rolling fit with the lower side face of the flange edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321168711.0U CN219900258U (en) | 2023-05-16 | 2023-05-16 | Local repair tool for flange seal line waterline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321168711.0U CN219900258U (en) | 2023-05-16 | 2023-05-16 | Local repair tool for flange seal line waterline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219900258U true CN219900258U (en) | 2023-10-27 |
Family
ID=88432835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321168711.0U Active CN219900258U (en) | 2023-05-16 | 2023-05-16 | Local repair tool for flange seal line waterline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219900258U (en) |
-
2023
- 2023-05-16 CN CN202321168711.0U patent/CN219900258U/en active Active
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