CN201586813U - Cutting protecting device used for bolt hole elastic groove of combustion gas turbine - Google Patents
Cutting protecting device used for bolt hole elastic groove of combustion gas turbine Download PDFInfo
- Publication number
- CN201586813U CN201586813U CN2009202131172U CN200920213117U CN201586813U CN 201586813 U CN201586813 U CN 201586813U CN 2009202131172 U CN2009202131172 U CN 2009202131172U CN 200920213117 U CN200920213117 U CN 200920213117U CN 201586813 U CN201586813 U CN 201586813U
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- CN
- China
- Prior art keywords
- bolt hole
- elastic groove
- cutting
- groove
- gas turbine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The utility model discloses a cutting protecting device used for a bolt hole elastic groove of a combustion gas turbine, which adopts a metal sleeve with the outer diameter being matched with the inner diameter of a bolt hole. An axial notch groove is cut on the wall of the sleeve from the lower end to the upper part according to the width of the elastic groove, and a pair of supporting plates is connected on the outer surface at the upper part of the sleeve, which takes the axial notch groove as a symmetric axis. The cutting protecting device which adopts the technical scheme can protect the inner wall of the bolt hole by cutting the notch groove which is slightly boarder than the elastic groove on the metal sleeve and pads the notch groove in the bolt hole when cutting the elastic groove. The cutting protecting device has a simple structure, is convenient to be disassembled and assembled, can be reused, and has a good protection effect.
Description
Technical field
The utility model relates to a kind of cutting protective device that is used for the bolt hole elastic groove of gas turbine.
Background technology
Need to cut elastic groove after the bolt hole processing on conventional No. two cylinders of gas turbine and No. three cylinder splits.The elastic groove of prior art adopts the method for flame cutting.Stick in the bolt hole owing to the flame cutting can produce a large amount of slags that cuts, cause and cut slag cleaning difficulty, bolt hole inner surface fineness does not meet the drawing requirement.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiencies in the prior art, a kind of cutting protective device that is used for the bolt hole elastic groove of gas turbine to be provided, and it can play the effect and the easy accessibility of protection bolt hole inwall.
A kind of technical scheme that realizes above-mentioned purpose is: a kind of cutting protective device that is used for the bolt hole elastic groove of gas turbine; it is the metal sleeve of an external diameter and described bolt hole internal diameter coupling; width according to described elastic groove on the tube wall of described sleeve pipe cuts an axial gap groove from lower end to the top of sleeve pipe, is that symmetry axis connects a pair of gripper shoe with described axial gap groove on the outer surface of upper of described sleeve pipe.
The technical scheme that is used for the cutting protective device of gas turbine bolt hole elastic groove of the present utility model; by on a metal sleeve, cutting one than the big slightly gap slot of bolt hole elastic groove width; and lining can play the effect of protection bolt hole inwall in bolt hole when the cutting elastic groove.This cutting protective device is simple in structure, and easy accessibility can use repeatedly, protects effective.
Description of drawings
Fig. 1 is the structure cutaway view of the cutting protective device of the bolt hole elastic groove that is used for gas turbine of the present utility model;
Fig. 2 is that A-A among Fig. 1 is to view;
Fig. 3 is the user mode figure of the cutting protective device of the bolt hole elastic groove that is used for gas turbine of the present utility model.
The specific embodiment
Also in conjunction with the accompanying drawings the technical solution of the utility model is described below by specific embodiment:
See also Fig. 1 and Fig. 2; the cutting protective device that is used for the bolt hole elastic groove of gas turbine of the present utility model; be the metal sleeve 1 of an external diameter and bolt hole internal diameter coupling, the width according to elastic groove on the tube wall of this sleeve pipe 1 cuts an axial gap groove 10 from lower end to the top of sleeve pipe 1.The width of this gap slot 10 is bigger slightly than the elastic groove width on the bolt hole.Be that symmetry axis connects a pair of gripper shoe 2 with axial gap groove 10 on the outer surface of upper of sleeve pipe 1.
See also Fig. 3 again; the cutting protective device of the bolt hole elastic groove that is used for gas turbine of the present utility model in use; lining is in manufactured bolt hole 3 and make a pair of gripper shoe 2 be supported on the upper end of bolt hole 3; in case the axial motion of sleeve pipe 1; the axial gap groove 10 on the sleeve pipe 1 is aimed at the elastic groove of bolt hole 3, preheating flange 4 to the set point of temperature that is positioned at bolt hole 3 peripheries promptly begins to cut the elastic groove on the bolt hole 3 then again.
The cutting protective device of the bolt hole elastic groove that is used for gas turbine of the present utility model is simple in structure, and easy accessibility can use repeatedly, protects effective.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.
Claims (1)
1. cutting protective device that is used for the bolt hole elastic groove of gas turbine; it is the metal sleeve of an external diameter and described bolt hole internal diameter coupling; it is characterized in that; width according to described elastic groove on the tube wall of described sleeve pipe cuts an axial gap groove from lower end to the top of sleeve pipe, is that symmetry axis connects a pair of gripper shoe with described axial gap groove on the outer surface of upper of described sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202131172U CN201586813U (en) | 2009-12-15 | 2009-12-15 | Cutting protecting device used for bolt hole elastic groove of combustion gas turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202131172U CN201586813U (en) | 2009-12-15 | 2009-12-15 | Cutting protecting device used for bolt hole elastic groove of combustion gas turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201586813U true CN201586813U (en) | 2010-09-22 |
Family
ID=42746580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202131172U Expired - Lifetime CN201586813U (en) | 2009-12-15 | 2009-12-15 | Cutting protecting device used for bolt hole elastic groove of combustion gas turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201586813U (en) |
-
2009
- 2009-12-15 CN CN2009202131172U patent/CN201586813U/en not_active Expired - Lifetime
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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: 20100922 |