CN219358483U

CN219358483U - Clamp tool for auxiliary repair of arc-shaped plate of turbine diffuser

Info

Publication number: CN219358483U
Application number: CN202320539902.7U
Authority: CN
Inventors: 申林; 李静
Original assignee: Shengyang Lifa Heat Energy Combustion Engine Equipment Parts Co ltd
Current assignee: Shengyang Lifa Heat Energy Combustion Engine Equipment Parts Co ltd
Priority date: 2023-03-20
Filing date: 2023-03-20
Publication date: 2023-07-18
Anticipated expiration: 2033-03-20

Abstract

A fixture tool for auxiliary repair of an arc-shaped plate of a turbine diffuser belongs to the technical field of repair auxiliary tools. The utility model comprises a fixing frame, and is characterized in that the whole fixing frame is of a concave groove structure, the fixing frame comprises a positive frame, an upper side frame and a lower side frame, the inner face of the upper side frame is an arc face in the direction parallel to the positive frame, the inner face of the upper side frame is an inclined face in the direction vertical to the positive frame, a side jackscrew is connected to the upper side frame in a threaded manner, the side jackscrew penetrates through the lower side frame and can move along the lower side frame, the inner end part of the side jackscrew is connected with a clamping block, the inner face of the clamping block is an arc face in the direction parallel to the positive frame, the inner face of the clamping block is an inclined face in the direction vertical to the positive frame, and the middle part of the positive frame is in threaded connection with a positive jackscrew which penetrates through the positive frame and can move along the positive frame. The utility model largely avoids the deformation of the arc plate, improves the repair quality and ensures the performance of the diffuser.

Description

Clamp tool for auxiliary repair of arc-shaped plate of turbine diffuser

Technical Field

The utility model belongs to the technical field of repair auxiliary tools, and particularly relates to a fixture tool for auxiliary repair of a turbine diffuser arc plate.

Background

The turbine diffuser of the gas turbine has the function of uniformly dispersing and discharging high-temperature and high-pressure gas, and preventing the local temperature of an exhaust section from being too high and damaging a unit. The arc plate of the turbine diffuser is thermally fatigued and gradually cracked due to long-time airflow scouring under high temperature and high pressure, so that the part needs to be periodically overhauled and maintained. The conventional repairing method is to repair and grind the crack part, but the local deformation of the arc plate is caused by the stress generated by direct welding, so that the expansion of the center radius is difficult to correct to the original size, and the performance of the diffuser is affected.

Disclosure of Invention

Aiming at the problems, the utility model overcomes the defects of the prior art and provides a fixture tool for auxiliary repair of an arc-shaped plate of a turbine diffuser; the utility model largely avoids the deformation of the arc plate, improves the repair quality and ensures the performance of the diffuser.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a fixture tool for auxiliary repair of a turbine diffuser arc plate, which comprises a fixing frame and is characterized in that the fixing frame is of a concave groove structure, the fixing frame comprises a positive frame, an upper side frame and a lower side frame, the inner face of the upper side frame is an arc face in the direction parallel to the positive frame, the inner face of the upper side frame is an inclined face in the direction perpendicular to the positive frame, a side jackscrew is connected to the upper side frame in a threaded manner, the side jackscrew penetrates through the lower side frame and can move along the lower side frame, the inner end part of the side jackscrew is connected with a clamping block, the inner face of the clamping block is an arc face in the direction parallel to the positive frame, the inner face of the clamping block is an inclined face in the direction perpendicular to the positive frame, and the middle of the positive frame is in threaded connection with a positive jackscrew which penetrates through the positive frame and can move along the positive frame.

Further, the inner surface of the upper side frame is a cambered surface with high middle and low two sides along the direction parallel to the positive frame, and the inner surface of the clamping block is a cambered surface with high middle and low two sides along the direction parallel to the positive frame and is the same as the inner surface radian of the upper side frame.

Further, the inner face of the upper side frame is a slope which is far away from the front frame side and is close to the front frame side in the vertical direction, and the inner face of the clamping block is a slope which is far away from the front frame side and is close to the front frame side and is low in the vertical direction.

Further, anti-slip pad surfaces are arranged on the inner face of the upper side frame and the inner face of the clamping block.

The utility model has the beneficial effects of.

The welding fixture is simple in structure and convenient to use, can be clamped on the arc-shaped plate and limit the welding deformation of the arc-shaped plate when the arc-shaped plate of the turbine diffuser of the gas turbine is subjected to repair welding, and can prevent the arc-shaped plate from deforming due to welding to a great extent by clamping and propping the arc-shaped plate along the shape of the arc-shaped plate, so that the repair quality is improved, and the performance of the diffuser is ensured.

Drawings

In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description is presented by way of example only and is not intended to limit the utility model.

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a cross-sectional view taken along A-A of fig. 1 in accordance with the present utility model.

The marks in the figure: the anti-skid device is characterized in that the anti-skid device comprises a positive frame 1, an upper side frame 2, a lower side frame 3, a side jackscrew 4, a clamping block 5, a positive jackscrew 6, an anti-skid pad surface 7 and an arc-shaped plate 8.

Detailed Description

As shown in the attached drawings, the embodiment provides a fixture tool for auxiliary repair of an arc-shaped plate of a turbine diffuser, which comprises a fixing frame, wherein the fixing frame is of a concave groove structure, and comprises a positive frame 1, an upper side frame 2 and a lower side frame 3.

The inner face of the upper side frame 2 is a cambered surface with high middle and low two sides along the direction parallel to the positive frame 1, the inner face of the upper side frame 2 is a slope with low side far away from the positive frame 1 and high side close to the positive frame 1 along the direction perpendicular to the positive frame 1, and the design purpose of the cambered surface and the slope is to enable the inner face of the upper side frame 2 to meet the appearance of the upper side face of the arc plate 8 after the diffuser arc plate 8 is clamped by a fixing frame so as to meet the track capable of being deformed along with the upper side face of the arc plate 8 due to welding so as to prop against the upper side face of the arc plate 8.

The side jackscrews 4 are connected to the lower side frame 3 in a threaded mode, the side jackscrews 4 penetrate through the lower side frame 3 and can move along the lower side frame 3, clamping blocks 5 are connected to the inner end portions of the side jackscrews 4, the positions of the clamping blocks 5 are adjusted through screwing the side jackscrews 4, and therefore the purpose of supporting arc-shaped plates 8 with different widths is achieved.

The inner surface of the clamping block 5 is an arc surface with the same height at the middle and the lower sides along the direction parallel to the front frame 1 and the radian of the inner surface of the upper side frame 2, and the inner surface of the clamping block 5 is an inclined surface with the height far from the front frame 1 and the lower side close to the front frame 1 along the direction perpendicular to the front frame 1. The inner surface of the clamping block 5 can meet the shape of the lower side surface of the arc plate 8 after the diffuser arc plate 8 is clamped by the fixing frame, so as to meet the track which can deform along with the lower side surface of the arc plate 8 due to welding to support the lower side surface of the arc plate 8.

The width dimension of the arcuate plate 8 is limited by the upper side frame 2 and the clamp block 5 together in accordance with the standards of the arcuate plate 8.

The middle part threaded connection of just putting up 1 has just jackscrew 6, just jackscrew 6 pass just putting up 1 and can follow just putting up 1 and remove, through screwing just jackscrew 6 and jack the positive side of arc 8, come according to the standard restriction arc 8 radius size of arc.

The anti-slip pad surfaces 7 are arranged on the inner surface of the upper side frame 2 and the inner surface of the clamping block 5, so that friction with the contact surface of the arc-shaped plate 8 is increased, and the arc-shaped plate 8 is prevented from sliding along the contact surface to influence the clamping effect.

The using mode is as follows: the method is characterized in that the part of the arc-shaped plate 8, which is required to be repaired and welded, of the turbine diffuser is fixedly installed in advance, the side jackscrew 4 is used for screwing and measuring that the width dimension of the arc-shaped plate 8 is not larger than the standard width dimension, then the positive jackscrew 6 is screwed and supported against the positive side of the arc-shaped plate 8, so that the radius dimension of the arc-shaped plate 8 is not larger than the standard radius dimension, all defect parts are sequentially welded after the arc-shaped plate 8 is screwed and fixed, the part to be welded is completely cooled to the room temperature, and the fixture tool can be taken down.

It will be appreciated that the above detailed description of the utility model is provided for illustration of the utility model and not for limitation of the technical solutions described in the embodiments of the utility model, and that the person skilled in the art should understand that the utility model may be modified or substituted for the same technical effects; as long as the use requirement is met, the utility model is within the protection scope of the utility model.

Claims

1. The utility model provides a fixture for assisting repair turbine diffuser arc board, includes the mount, its characterized in that, the mount is whole to be concave groove structure, the mount includes positive frame (1), goes up side bearer (2) and lower side bearer (3), the inner face of going up side bearer (2) is parallel positive frame (1) direction is the cambered surface, the inner face of going up side bearer (2) is along perpendicular positive frame (1) direction is the inclined plane, threaded connection has side jackscrew (4) on lower side bearer (3), side jackscrew (4) pass lower side bearer (3) and can follow lower side bearer (3) removal, the inner tip of side jackscrew (4) is connected with clamp block (5), the inner face of clamp block (5) is along being parallel positive frame (1) direction is the cambered surface, the inner face of clamp block (5) is along perpendicular positive frame (1) direction is the inclined plane, the middle part threaded connection of positive frame (1) has positive jackscrew (6), positive jackscrew (6) pass positive frame (1) and can follow positive frame (1).

2. The fixture tool for auxiliary repair of the arc plate of the turbine diffuser according to claim 1, wherein the inner surface of the upper side frame (2) is an arc surface with a high middle and a low two sides along the direction parallel to the positive frame (1), and the inner surface of the clamping block (5) is an arc surface with a low middle and a high two sides along the direction parallel to the positive frame (1) and is the same as the arc surface of the inner surface of the upper side frame (2).

3. The fixture tool for auxiliary repair of a turbine diffuser arc plate according to claim 1, wherein the inner face of the upper side frame (2) is a slope which is far away from the side of the front frame (1) and is high near the side of the front frame (1) along the direction vertical to the front frame (1), and the inner face of the clamping block (5) is a slope which is far away from the side of the front frame (1) and is low near the side of the front frame (1) along the direction vertical to the front frame (1).

4. The fixture tool for auxiliary repair of a turbine diffuser arc plate according to claim 1, wherein anti-slip pad surfaces (7) are provided on both the inner face of the upper side frame (2) and the inner face of the clamping block (5).