CN203527306U

CN203527306U - Correcting fixture

Info

Publication number: CN203527306U
Application number: CN201320603007.3U
Authority: CN
Inventors: 蔡泳
Original assignee: Zhuzhou Nanfang Gas Turbine Packaging and Installation Co Ltd
Current assignee: Zhuzhou Nanfang Gas Turbine Packaging and Installation Co Ltd
Priority date: 2013-09-27
Filing date: 2013-09-27
Publication date: 2014-04-09
Anticipated expiration: 2023-09-27

Abstract

The utility model discloses a correcting fixture which is used for correcting and adjusting the size of the spacing between a front outer sleeve and an inner box body of a combustion box. The correcting fixture comprises a connecting section, a first correcting section and a second correcting section, wherein the first correcting section is arranged at one end of the connecting section, and the second correcting section is arranged at the other end of the connecting section. A convex round end is arranged at the end of the first correcting section, a concave round end is arranged at the end of the second correcting section, and the spacing between the first correcting section and the second correcting section is adjustable. The correcting fixture is simple in structure, the spacing between the first correcting section and the second correcting section is expanded by rotating the connecting section, accordingly, the size of each interval 'T' can reach a design value, it can be guaranteed that each interval 'T' has a consistent size structure, operation is convenient, the correcting and adjusting efficiency is high, and the labor intensity of operators is lowered.

Description

A kind of clamping fixture for correcting

Technical field

The utility model relates to fixture, especially, relates to a kind of clamping fixture for correcting for casing class annulus part.

Background technology

Combustion chamber is the significant components on gas turbine engine, and it is between compressor and turbine, and its purposes is the pressure-air mixed combustion that makes fuel and compressor, improves the interior energy that air has, and guarantee the combustion gas of turbine inlet place to fixed temperature.Refer to Fig. 1, the design feature of combustion-chamber assembly is that its most parts are all annular thin walled welds parts, burning chamber shell is comprised of combustion box and rear overcoat, combustion box is a bearing member, front overcoat 1 and the parts such as ten support plates and interior casing 2, consist of, front overcoat 1 and interior casing 2 are welded into one by ten support plates.The place that has fuel gas in combustion box---burner inner liner, 30% the air that accounts for combustion chamber total air enters in burner inner liner and fuel mix from nozzle ejection, burns, and forms main air; 70% the air that accounts for combustion chamber total air forms secondary air flow, and secondary air flow can reduce fuel gas temperature to adapt to the intensity license of turbo blade, simultaneously the also turbine behind cooling flame cylinder and combustion chamber.

In combustion box being adjusted to the process of maintenance, for making the preferably duty that reaches of engine, (the T region indicating in figure is interval " T " to proofread and correct adjustment to the size of interval " T ", the spacing of the inwall of overcoat 1 and the outer wall of interior casing 2 before, a plurality of intervals " T " are uniformly distributed along the circumferencial direction of interior casing 2), its reason is: if the size of interval " T " is inhomogeneous, be used for two strands of cooling air-flows by inhomogeneous, thereby affect the cooling effect of turbine, and then directly affect the power of engine.In prior art, the dimension correction adjustment of interval " T " is not had to special-purpose clamping fixture for correcting, just with some better simply general repair outfits and survey tool, this is proofreaied and correct to adjustment; Therefore, the labour intensity of proofreading and correct operator while adjusting is larger, efficiency is low, and, the outer wall of the inwall of front overcoat 1 and interior casing 2 is cambered surface, use general tool to be difficult to have good correction and adjust effect, be difficult to make each interval " T " to there is consistent size, and then directly affect the duty of engine.

Utility model content

The utility model object is to provide a kind of clamping fixture for correcting, to solve in prior art, the spacing dimension of the front overcoat of combustion box and interior casing is proofreaied and correct to adjust and there is no special-purpose clamping fixture for correcting, the labour intensity of proofreading and correct operator while adjusting is larger, efficiency is low, and, proofread and correct the technical problem of adjusting weak effect.

For achieving the above object, according to an aspect of the present utility model, a kind of clamping fixture for correcting is provided, for the spacing dimension of the front overcoat of combustion box and interior casing is proofreaied and correct to adjustments, comprising: linkage section and be arranged at the second correction section that the linkage section other end was proofreaied and correct section and be arranged in first of linkage section one end; The first end of proofreading and correct section is dome end, and the second end of proofreading and correct section is recessed nose circle, and it is adjustable that the first correction section and second is proofreaied and correct intersegmental spacing.

Further, in a tubular form, its inner hole wall is provided with screw thread to linkage section, and first proofreaies and correct section arranges a spiro rod section with the second correction Duan Shangjun, the spiro rod section of the first correction section and the threaded one end of linkage section spin, and the spiro rod section of the second correction section and the other end screw thread of linkage section spin.

Further, first proofread and correct the screw thread rotation opposite direction of section and the second correction section.

Further, on the lateral wall of linkage section, be provided with clamping part.

Further, clamping part is the polygon projection along the side setting of linkage section week; Or, the hole slot of clamping part for offering on linkage section lateral wall along linkage section radial direction.

Further, the circular arc radian of dome end and the circular arc radian of front outer casing inner wall of the first correction section are consistent; The circular arc radian of recessed nose circle and the circular arc radian of the outer wall of interior casing of the second correction section are consistent.

The utlity model has following beneficial effect:

Clamping fixture for correcting is simple in structure, by the section of being rotatably connected, expand first and proofread and correct the section spacing intersegmental with the second correction, can make the size in interval " T " reach design load, can guarantee that each interval " T " has more consistent dimensional structure, and easy to operate, correction regulated efficiency is high, has reduced the labour intensity of operator.

Except object described above, feature and advantage, the utility model also has other object, feature and advantage.Below with reference to figure, the utility model is described in further detail.

Accompanying drawing explanation

The accompanying drawing that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:

Fig. 1 is the structure cutaway view of combustion box; And

Fig. 2 is the structural representation of a kind of clamping fixture for correcting preferred embodiment of the utility model.

Description of reference numerals:

1, front overcoat; 2, interior casing; 101, linkage section; 102, first proofread and correct section; 103, second proofread and correct section; 104, recessed nose circle; 105, dome end; 106, clamping part.

The specific embodiment

Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.

Refer to Fig. 2, preferred embodiment of the present utility model provides a kind of clamping fixture for correcting, comprising: linkage section 101 and the first correction section 102 and the second correction section 103 that is arranged at linkage section 101 other ends that are arranged at linkage section 101 one end; The first end of proofreading and correct section 102 is that end that dome end 105, the second is proofreaied and correct section 103 is that recessed nose circle 104, the first is proofreaied and correct section 102 and second to proofread and correct the spacing of sections 103 adjustable.

Refer to Fig. 1 and Fig. 2, for the spacing dimension of the front overcoat of combustion box and interior casing (interval " T ") is proofreaied and correct to adjustment, the T region that Fig. 1 indicates is interval " T ", the spacing of the inwall of overcoat 1 and the outer wall of interior casing 2 before, a plurality of intervals " T " is uniformly distributed along the circumferencial direction of interior casing 2, clamping fixture for correcting is put into the region that combustion box will be proofreaied and correct adjustment, (inwall of front overcoat 1 is concaved circular cambered surface to make the dome end 105 of the first correction section 102 ends and the inwall laminating of front overcoat 1, need to use dome end 105 to be mated), (outer wall of interior casing 2 is convex arc surface for the second recessed nose circle 104 of correction section 103 ends and the outer wall laminating of interior casing 2, need to use recessed nose circle 104 to be mated), first of fixture to be corrected proofread and correct section 102 and second proofread and correct sections 103 all post with the correction position of combustion box after, again according to the correcting value of interval " T ", expand first and proofread and correct the spacing that section 102 and second is proofreaied and correct 103 of sections, make the size in interval " T " reach design load.

Preferably, for ease of adjusting the first correction section 102 and second, proofread and correct the spacing of 103 of sections, simplify clamping fixture for correcting; Linkage section 101 in a tubular form, its inner hole wall is provided with screw thread (not shown), the first correction section 102 and second is proofreaied and correct in section 103 a spiro rod section (not shown) is all set, the spiro rod section of the first correction section 102 and the threaded one end of linkage section 101 spin, and the spiro rod section of the second correction section 103 and the other end screw thread of linkage section 101 spin.Adopt this kind of structure, it is flexible that the section of being rotatably connected 101 can make the first correction section 102 and second proofread and correct section 103 axial directions along linkage section 101.For further making clamping fixture for correcting convenient operation, first proofreaies and correct section 102 and second proofreaies and correct the screw thread rotation opposite direction of section 103, when the section of being rotatably connected 101, first proofreaies and correct section the 102 and second correction section 103 can be flexible in the other direction along the axial direction of linkage section 101, and first proofreaies and correct section 102 and second spacing of proofreading and correct 103 of sections can increase fast or dwindle.

Preferably, for ease of the section of being rotatably connected 101, on the lateral wall of linkage section 101, be provided with clamping part 106.In this preferred embodiment, clamping part 106 is the polygon projection along linkage section side setting in 101 weeks.When the section of being rotatably connected 101, can use the tool holdings such as spanner to live the polygon projection section of being rotatably connected 101 fast.Meanwhile, clamping part 106 also can adopt other structure to be achieved; For example, along the radial direction of linkage section 101, on the lateral surface of linkage section 101, offer hole slot, when the section of being rotatably connected 101, insert rod shape connector in hole slot, operator also can make linkage section 101 rotations by pulling rod shape connector.

Preferably, for making the dome end 105 and second of the first correction section 102 proofread and correct the recessed nose circle 104 of section 103, fit completely with the correction position in the interval " T " of combustion box, reach preferably to proofread and correct and adjust effect, the circular arc radian that the first circular arc radian and second of proofreading and correct the dome end 105 of section 102 is proofreaied and correct section 103 recessed nose circles 104 is all consistent with the circular arc radian at the correction position in the interval " T " of combustion box, the circular arc radian that is dome end 105 is consistent with the circular arc radian of front overcoat 1 inwall, and the circular arc radian of recessed nose circle 104 is consistent with the circular arc radian of interior casing 2 outer walls.

As can be seen from the above description, the utility model the above embodiments have realized following technique effect:

Clamping fixture for correcting is simple in structure, by the section of being rotatably connected 101, expand first and proofread and correct the spacing that section 102 and second is proofreaied and correct 103 of sections, can make the size in interval " T " reach design load, can guarantee that each interval " T " has more consistent dimensional structure, and easy to operate, correction regulated efficiency is high, has reduced the labour intensity of operator.

The foregoing is only preferred embodiment of the present utility model and oneself, be not limited to the utility model; For a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims

1. a clamping fixture for correcting, proofreaies and correct adjustment for the front overcoat (1) to combustion box and the spacing dimension of interior casing (2), it is characterized in that, comprising:

Linkage section (101) and the first correction section (102) and the second correction section (103) that is arranged at described linkage section (101) other end that are arranged at described linkage section (101) one end;

The described first end of proofreading and correct section (102) is dome end (105), the described second end of proofreading and correct section (103) is recessed nose circle (104), and the described first spacing of proofreading and correct between section (102) and described the second correction section (103) is adjustable.

2. a kind of clamping fixture for correcting according to claim 1, is characterized in that:

Described linkage section (101) in a tubular form, its inner hole wall is provided with screw thread, described the first correction section (102) and described second is proofreaied and correct in section (103) spiro rod section is all set, described the first correction section spiro rod section of (102) and the threaded one end of described linkage section (101) spin, and described the second correction section spiro rod section of (103) and the other end screw thread of described linkage section (101) spin.

3. a kind of clamping fixture for correcting according to claim 2, is characterized in that:

Described first proofreaies and correct section (102) proofreaies and correct the screw thread rotation opposite direction of section (103) with described second.

4. a kind of clamping fixture for correcting according to claim 1 and 2, is characterized in that:

On the lateral wall of described linkage section (101), be provided with clamping part (106).

5. a kind of clamping fixture for correcting according to claim 4, is characterized in that:

Described clamping part (106) is the polygon projection arranging along all sides of described linkage section (101); Or, the hole slot of described clamping part (106) for offering on described linkage section (101) lateral wall along described linkage section (101) radial direction.

6. a kind of clamping fixture for correcting according to claim 1, is characterized in that:

The circular arc radian of the dome end (105) of described the first correction section (102) is consistent with the circular arc radian of described front overcoat (1) inwall; The circular arc radian of the recessed nose circle (104) of described the second correction section (103) is consistent with the circular arc radian of the outer wall of described interior casing (2).