CN202985283U - Circular nozzle grinding tool - Google Patents
Circular nozzle grinding tool Download PDFInfo
- Publication number
- CN202985283U CN202985283U CN 201220709613 CN201220709613U CN202985283U CN 202985283 U CN202985283 U CN 202985283U CN 201220709613 CN201220709613 CN 201220709613 CN 201220709613 U CN201220709613 U CN 201220709613U CN 202985283 U CN202985283 U CN 202985283U
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- China
- Prior art keywords
- ozzle
- main shaft
- circular arc
- grinding tool
- sleeve
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- Expired - Lifetime
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The utility model relates to the field of building of nuclear power stations, in particular to a circular nozzle grinding tool for equipment and pipelines in a nuclear power station during building of the nuclear power station, and aims at solving the problem that adopting the prior art to grind circular nozzles of the equipment or pipeline in the nuclear power station is large in labor intensity and big in grinding difficulty. The circular nozzle grinding tool comprises a polisher head, a connecting rod and a supporting structure, wherein the supporting structure comprises a spindle and a base, a spherical cavity with a spherical structure is arranged on the upper portion of the base, a cone-frustum-shaped cavity communicated with the spherical cavity is arranged on the lower portion, the lower end of the spindle is inserted in the spherical structure and extends down into the cone-frustum-shaped cavity, and one end of the connecting rod is connected with the polisher head while the other end of the same is vertically connected with the spindle. Using the circular nozzle grinding tool to grind the circular nozzles is small in labor intensity, uniform in grinding, easy for controlling grinding quantity and high in grinding efficiency.
Description
Technical field
The utility model relates to the construction applications of nuclear power station, relates in particular in the Nuclear Power Station process to be used for the instrument that the circular arc ozzle to the equipment of nuclear power station and pipeline carries out reconditioning.
Background technology
In nuclear power station, the outlet ozzle of reactor bottom in-pile component is convex structure, and the cold conditions design gaps between the ozzle of the outlet ozzle of this reactor bottom in-pile component and connected pressure vessel is 2.03 ± 0.13mm (millimeter).Because actual specification and the design specification of equipment or pipeline has deviation, actual size and design size such as reactor bottom in-pile component, carrying out nuclear power station when installing, needing first the circular arc ozzle of the outlet of reactor bottom in-pile component is carried out reconditioning, to satisfy installation requirement.
At present, when the workmen carries out reconditioning at the circular arc ozzle to the exit of reactor bottom in-pile component, often adopt the hand-held pneumatic sanding machine to the circular arc ozzle polish, polishing, perhaps manually use emery cloth to the circular arc ozzle polish, polishing.But, when adopting the hand-held pneumatic sanding machine that the circular arc ozzle is polished, need by hand-held this hand polishing machine of workmen, the circular arc ozzle to be polished, labour intensity is large, and wayward polishing amount when polishing, and then cause the partial portion polishing on the circular arc ozzle excessive, the polishing quantity not sufficient of partial portion, difficulty of construction is larger, brings immense pressure to on-site installation work; When using emery cloth to carry out manual grinding to ozzle, labour intensity is large, and the polishing dynamics is inhomogeneous, and the polishing amount is wayward, and the partial portion on the circular arc ozzle easily polishing is excessive, and grinding efficiency is low, and length expends time in.Therefore, be badly in need of developing a kind of novel circular arc ozzle grinding tool the circular arc ozzle of the equipment in nuclear power station or pipeline is carried out uniform grinding, to reduce labour intensity, improve grinding efficiency, shorten the polishing time.
The utility model content
When adopting prior art that the circular arc ozzle of the equipment in nuclear power station or pipeline is polished for solving, labour intensity is large, the large problem of polishing difficulty the utility model proposes a kind of circular arc ozzle grinding tool, and this circular arc ozzle grinding tool comprises polishing head, connecting rod and supporting construction; Described supporting construction comprises main shaft and base, top at described base is provided with spherical cavity, and be provided with the sphere structure of hollow in this spherical cavity, be provided with the cavity of the circular cone shape that is communicated with this spherical cavity below described spherical cavity, the lower end of described main shaft is inserted in described sphere structure and is insinuated in the cavity of described circular cone shape; One end of described connecting rod is connected with described polishing head, and the other end is connected with described main shaft is vertical.
When using such circular arc ozzle grinding tool that the circular arc ozzle is polished, its base is fixed in the circular arc ozzle, the workmen only needs with the hand steered connecting rod of holding, drive polishing head and make circular motion along the circular arc ozzle, round and round the circular arc ozzle is polished and get final product, labour intensity is little, and grinding homogeneity; In bruting process, the workmen also can adjust the grinding and feeding amount of polishing head as required by the angle between adjustment main shaft and base, easily control the polishing amount, and grinding efficiency is high.
Preferably, described polishing head is any one in pneumatic sander head, hydraulic pressure polishing head or electric polishing machine head.
Preferably, described connecting rod is the tubular structure of hollow.Further, described main shaft is the hollow straight tube structure of upper end sealing, is provided be used to the outlet that is communicated with described connecting rod at the outer wall near described main shaft upper end, is provided with import in the lower end of described main shaft.Like this, when polishing head is pneumatic sander head or hydraulic pressure polishing head, the gas outlet of air compressor or the oil-out of hydraulic pump are connected with the import that is positioned at the main shaft lower end, Compressed Gas or hydraulic oil are injected in main shaft, and enter in connecting rod by the main shaft upper outlet, enter polishing head by connecting rod again, the running of drive polishing head, can avoid with being communicated with air compressor or hydraulic pump and polishing head communicating pipe, and then avoid communicating pipe mutually to interfere with polishing head in bruting process, hinder workmen's operation; When polishing head is the electric polishing machine head, can make to pass the cavity of its power line in main shaft and connecting rod to be connected on polishing head, can avoid power line mutually to interfere with polishing head in bruting process, hinder workmen's operation.
Preferably, described base comprises bearing and at least two supporting legs, and described supporting leg is connected with the outer wall vertical of described bearing, and the connecting portion of described supporting leg and described bearing is positioned on same circumference.Further, described supporting leg evenly distributes around described bearing.Further preferably, described supporting leg comprises installing sleeve, retracting cylinder and pole, and described installing sleeve is fixedly connected with the outer wall vertical of described bearing, and the two ends of described retracting cylinder are threaded connection with described installing sleeve and described pole respectively.Like this, supporting leg can be adjusted to identical length, after base being fixed in the circular arc ozzle, the central axes of the central axis of base and circular arc ozzle, and then to make circular motion that polishing head is done on the circular arc ozzle are all central axis around the circular arc ozzle, grinding homogeneity.Supporting leg evenly distributes around bearing, base is fixed in the circular arc ozzle reposefully, and further guarantees the central axes of central axis and the circular arc ozzle of base.By screwing the connecting length between adjustable and retractable cylinder and installing sleeve and pole, and then can adjust the length of supporting leg according to the size of the internal diameter of circular arc ozzle, to use this circular arc ozzle grinding tool, the circular arc ozzle of different size be polished.
Preferably, described main shaft outer setting sleeve, be used for connecting described main shaft and connecting rod, the upper/lower terminal of this sleeve is set on described main shaft hermetically, and gapped between the inwall of described sleeve and the outer wall of described main shaft, the outer wall of described sleeve arranges through hole, is used for connecting described connecting rod, and the outer wall that is positioned at described sleeve and close sleeve upper end on described main shaft arranges outlet.Further, described sleeve comprises that sleeve pipe and tube connector and described sleeve pipe and described tube connector are connected to form " protruding " font structure, and the outlet on described main shaft is positioned at described sleeve pipe, and the outer wall of described tube connector arranges through hole, is used for connecting described connecting rod.Further preferably, be positioned at described sleeve upside and downside on described main shaft and be arranged with respectively Compress Spring.Like this, connect main shaft and connecting rod by sleeve, when polishing head is pneumatic sander head or hydraulic pressure polishing head, Compressed Gas or hydraulic oil are first entered in the cavity of sleeve by the outlet on main shaft after entering main shaft by import, and then the through hole of the connecting portion by connecting rod and sleeve enters in the cavity of connecting rod, to drive the polishing head action.In bruting process, the workmen is adjusted at polishing amount on same position on the circular arc ozzle by lifting or depress polishing head as required, can be compressed the resistance that spring produces in the process of lifting or depress polishing head, and then avoid changing significantly the polishing amount, the convenient polishing amount of controlling, grinding homogeneity, and easy to operate.
When using the utility model circular arc ozzle grinding tool that the circular arc ozzle is polished, can be first the base of this circular arc ozzle grinding tool be placed in the circular arc ozzle, polishing head is placed in outside the circular arc ozzle; Then the hand steered connecting rod drive polishing head that is connected with polishing head moves on the circular arc ozzle, can polish to the circular arc ozzle, and labour intensity is little, and grinding homogeneity, and grinding efficiency is high.In use, can also adjust according to the internal diameter of circular arc ozzle the length of supporting leg, to satisfy the needs that the circular arc ozzle of different size is polished.Use sleeve to connect main shaft and connecting rod, be provided with Compress Spring at upside and the downside of sleeve, the convenient adjusting range of controlling the polishing amount, and then the convenient polishing amount of controlling make grinding homogeneity, and easy to operate.
Description of drawings
Fig. 1 is the perspective view of the utility model circular arc ozzle grinding tool;
Fig. 2 is the perspective view of the supporting construction broken section in the utility model circular arc ozzle grinding tool.
The specific embodiment
As illustrated in fig. 1 and 2, the utility model circular arc ozzle grinding tool comprises polishing head 1, connecting rod 2, and the supporting construction 3 that comprises main shaft 31 and base 32, polishing head 1 is fixed on supporting construction 3 by connecting rod 2, and polishing head 1 and connecting rod 2 can rotate around the central axis of main shaft 31, the sphere structure 3211 and base 32 flexible connections of the hollow of the lower end of main shaft 31 by being positioned at base 32.When using the utility model circular arc ozzle grinding tool that the circular arc ozzle in nuclear power station is polished, base 32 is fixed in the circular arc ozzle, polishing head 1 is positioned at the outside of circular arc ozzle, the hand steered connecting rod 2 of workmen comes mobile polishing head 1, make polishing head 1 make circular motion on the circumference at circular arc ozzle place, round and round the circular arc ozzle is polished, with the uniformity of raising polishing, and then improve the polishing effect.In addition, in bruting process, can adjust as required the angle between main shaft and base, to adjust the polishing amount of polishing head, namely control the polishing amount of polishing head by the angle between control main shaft and base.
The preferred pneumatic sander head of polishing head 1 certainly, can be also hydraulic pressure polishing head or electric polishing machine head.
As shown in Figure 1, connecting rod 2 comprises the connecting rod 22 that connects 21 and two hollows of cylinder, and connects cylinder 21 and be threaded connection with connecting rod 22 and be in the same place.Like this, when using circular arc ozzle grinding tool that the circular arc ozzle of different size is polished, can be as required by adjustments connect tins 21 and connecting rod 22 between connecting length adjust the length of connecting rod 2.Certainly, connecting rod 2 also can be made of one, the straight tube structure of two or more hollows.Air inlet or oil-in (not shown) can be set on connecting rod 2, and the fixed muffle 11 on polishing head 1 passes in polishing head 1 by connecting rod 2 with Compressed Gas or hydraulic oil to adopt communicating pipe, drives the polishing head action.In addition, connecting rod can also be the rod-like structure of entity, at this moment, air inlet or oil-in (not shown) is set on polishing head, adopt and communicating pipe directly Compressed Gas or hydraulic oil to be sent into polishing head by the air inlet on polishing head or oil-in, communicating pipe preferred flexible pipe.
As illustrated in fig. 1 and 2, supporting construction 3 comprises main shaft 31 and base 32, and the lower end of main shaft 31 is by sphere structure 3211 and base 32 active links.
As shown in Figure 2, the lower end of main shaft 31 is inserted in sphere structure 3211, and is insinuated in the cavity of circular cone shape of bearing 321 bottoms, and the lower end of main shaft 31 can swing in the circular cone shape cavity of bearing 321 bottoms.Like this, when using the utility model circular arc ozzle grinding tool that the circular arc ozzle is polished, the angle between main shaft 31 and base 32 is adjusted on the top that can pull main shaft 31.
As illustrated in fig. 1 and 2, the outer setting sleeve 4 of main shaft 31, an end of connecting rod 2 is connected with main shaft 31 is vertical by sleeve 4, and the fixed muffle 11 on the other end of connecting rod 2 and polishing head 1 is threaded connection.Sleeve 4 is " protruding " font structure of hollow, should " protruding " font structure comprise sleeve pipe 41 and tube connector 42, and the internal diameter of superposed sleeve pipe 41 is less, and the internal diameter of tube connector 42 that is positioned at the bottom is larger.Sleeve 4 is set on main shaft 31, and the outer wall of the end of the upper/lower terminal of sleeve 4 and main shaft 31 is tightly connected.Wherein, the upper end of sleeve pipe 41 close main shafts 31 also is positioned on the position at outlet 311 places, and be provided with the gap between the outer wall of the inwall of sleeve pipe 41 and main shaft 31; Tube connector 42 is near the lower end of main shafts 31 and be positioned at the below of outlet 311, be provided with through hole on the outer wall of tube connector 42 and be used for connecting connecting rod 2, so that the cavity of connecting rod 2 inside is communicated with the cavity of sleeve 4 inside, and then the cavity of connecting rod 2 inside is communicated with the cavity of main shaft 31 inside; The central axes of the central axis of the central axis of sleeve pipe 41, tube connector 42 and main shaft 31.Like this, when polishing head 1 is pneumatic sander head or hydraulic pressure polishing head, Compressed Gas or hydraulic oil can be entered by the import 312 that is positioned at main shaft 31 lower ends the cavity of main shaft 31 inside, entered in the cavity of sleeve 4 inside by outlet 311 again, then the cavity by connecting rod 2 inside is in fixed muffle 11 enters polishing head 1, for polishing head 1 provides power; When polishing head 1 was the electric polishing machine head, the power line on polishing head 1 can pass in the cavity from main shaft 31 and connecting rod 2, to avoid power line and the mutual interference of polishing head phase, handled easily in use.Preferably, the upside and the downside that are positioned at sleeve 4 on main shaft 31 are respectively arranged with Compress Spring 5, when using this circular arc ozzle grinding tool that the circular arc ozzle is polished, can adjust by lifting or depress connecting rod 2 the polishing amount on the same position on the circular arc ozzle of polishing head 1, and when lifting or depress connecting rod 2, can be compressed the resistance that spring 5 produces, reduce the adjusting range of polishing amount, be convenient to control the polishing amount, excessive to avoid polishing.In addition, connecting rod 2 also can directly be connected with main shaft 31 is vertical, and connecting rod 2 and the connecting portion of main shaft 31 be positioned at the position at outlet 311 places, so that the cavity of connecting rod 2 inside is communicated with the cavity of main shaft 31 inside.
Claims (10)
1. a circular arc ozzle grinding tool, is characterized in that, this circular arc ozzle grinding tool comprises polishing head, connecting rod and supporting construction; Described supporting construction comprises main shaft and base, top at described base is provided with spherical cavity, and be provided with the sphere structure of hollow in this spherical cavity, be provided with the cavity of the circular cone shape that is communicated with this spherical cavity below described spherical cavity, the lower end of described main shaft is inserted in described sphere structure and is insinuated in the cavity of described circular cone shape; One end of described connecting rod is connected with described polishing head, and the other end is connected with described main shaft is vertical.
2. circular arc ozzle grinding tool according to claim 1, is characterized in that, described polishing head is any one in pneumatic sander head, hydraulic pressure polishing head or electric polishing machine head.
3. circular arc ozzle grinding tool according to claim 1 and 2, is characterized in that, described connecting rod is the tubular structure of hollow.
4. circular arc ozzle grinding tool according to claim 3, it is characterized in that, described main shaft is the hollow straight tube structure of upper end sealing, is provided be used to the outlet that is communicated with described connecting rod at the outer wall near described main shaft upper end, is provided with import in the lower end of described main shaft.
5. circular arc ozzle grinding tool according to claim 1 and 2, it is characterized in that, described base comprises bearing and at least two supporting legs, and described supporting leg is connected with the outer wall vertical of described bearing, and the connecting portion of described supporting leg and described bearing is positioned on same circumference.
6. circular arc ozzle grinding tool according to claim 5, is characterized in that, described supporting leg evenly distributes around described bearing.
7. circular arc ozzle grinding tool according to claim 5, it is characterized in that, described supporting leg comprises installing sleeve, retracting cylinder and pole, described installing sleeve is fixedly connected with the outer wall vertical of described bearing, and the two ends of described retracting cylinder are threaded connection with described installing sleeve and described pole respectively.
8. circular arc ozzle grinding tool according to claim 3, it is characterized in that, described main shaft outer setting sleeve, be used for connecting described main shaft and connecting rod, the upper/lower terminal of this sleeve is set on described main shaft hermetically, and gapped between the outer wall of the inwall of described sleeve and described main shaft, and the outer wall of described sleeve arranges through hole, be used for connecting described connecting rod, the outer wall that is positioned at described sleeve and close sleeve upper end on described main shaft arranges outlet.
9. circular arc ozzle grinding tool according to claim 8, it is characterized in that, described sleeve comprises sleeve pipe and tube connector, and described sleeve pipe and described tube connector are connected to form " protruding " font structure, outlet on described main shaft is positioned at described sleeve pipe, the outer wall of described tube connector arranges through hole, is used for connecting described connecting rod.
10. circular arc ozzle grinding tool according to claim 9, is characterized in that, is positioned at described sleeve upside and downside and is arranged with respectively Compress Spring on described main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220709613 CN202985283U (en) | 2012-12-20 | 2012-12-20 | Circular nozzle grinding tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220709613 CN202985283U (en) | 2012-12-20 | 2012-12-20 | Circular nozzle grinding tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202985283U true CN202985283U (en) | 2013-06-12 |
Family
ID=48556501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220709613 Expired - Lifetime CN202985283U (en) | 2012-12-20 | 2012-12-20 | Circular nozzle grinding tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202985283U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114055314A (en) * | 2021-09-28 | 2022-02-18 | 河南新开源石化管道有限公司 | Inner wall processing apparatus of return bend for petrochemical industry pipeline |
-
2012
- 2012-12-20 CN CN 201220709613 patent/CN202985283U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114055314A (en) * | 2021-09-28 | 2022-02-18 | 河南新开源石化管道有限公司 | Inner wall processing apparatus of return bend for petrochemical industry pipeline |
| CN114055314B (en) * | 2021-09-28 | 2023-10-20 | 河南新开源石化管道有限公司 | Inner wall processing device of elbow for petrochemical pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |