Auxiliary mounting device for gas turbine wall

Abstract

The utility model provides an auxiliary mounting device for a gas turbine wall. The auxiliary mounting device comprises a supporting rod, a retainer, a jacking screw rod, a jacking column, an axis and a ball bearing, the supporting rod is fixed on the flange pressing ring; the retainer is fixed on the supporting rod; the jacking screw rod is screwed into the screw hole of the retainer from top to bottom through threads; the ball bearing is connected with the jacking column through the axis and makes contact with the jacking column through the round head end of the jacking screw to apply pressure to the jacking column. The gas turbine wall mounting tool is simple and convenient to operate, greatly reduces the gas turbine wall mounting time, and improves the working efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical processing, and in particular relates to a gas turbine wall auxiliary installation device. Background Art

[0002] Gas turbine walls are subject to exceptionally harsh environmental conditions during service, enduring high temperatures, high pressures, and heavy loads. As the connecting and flow-guiding component between the high- and low-pressure turbines and the third-stage guide vane, the gas turbine walls are designed as thin-walled stainless steel structures, constructed entirely of 3mm thick steel plate with a maximum outer diameter of 1050 mm.

[0003] Because the wall needs to go through roll forming, welding, and machining during the production process, and its own structure is a thin-walled part, the product will inevitably deform after production. When assembling this product later, the 24 bosses on the matching flange pressure ring need to be inserted into the gap and rotated to install into the slot. See the attached Figure 1 However, due to the structure of the wall that is easily deformed, the ring cannot enter the slot smoothly. Utility Model Content

[0004] The utility model aims to provide a gas turbine wall auxiliary installation device which solves the problem of difficulty in installation caused by deformation of the gas turbine wall.

[0005] A gas turbine wall auxiliary installation device includes a support rod, a retaining frame, a jacking screw, a tightening column, an axis and a ball bearing; the support rod is fixed on a flange pressure ring; the retaining frame is fixed on the support rod; the jacking screw is screwed into the screw hole of the retaining frame from top to bottom through a thread; the ball bearing is connected to the tightening column through the axis, and the round head end of the jacking screw contacts the tightening column to apply pressure to the tightening column.

[0006] Furthermore, the support rod is fixed to the flange pressure ring through a locking nut and a gasket.

[0007] Furthermore, the retaining frame is fixed on the support rod at a suitable height through two locking nuts and two washers.

[0008] Furthermore, the direction of the tightening column is adjustable to ensure that the rolling direction of the ball bearing is tangential to the wall circumference.

[0009] The beneficial effects of the present invention are:

[0010] The utility model is easy to operate, and by using the utility model, the time for installing the gas turbine wall is greatly reduced, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the assembly of the existing gas turbine wall and flange pressure ring;

[0012] Figure 2 This is a schematic diagram of the use of the tooling of the utility model. DETAILED DESCRIPTION

[0013] The present invention will be further described below in conjunction with the accompanying drawings.

[0014] like Figure 1 As shown, a gas turbine wall auxiliary installation device includes a support rod 3, a retaining frame 4, a jacking screw 5, a tightening column 6, an axis 7 and a ball bearing 8; the support rod 3 is fixed on the flange pressure ring; the retaining frame 4 is fixed on the support rod 3; the jacking screw 5 is screwed into the screw hole of the retaining frame 4 from top to bottom through a thread, and the height of the jacking screw 5 is adjusted by twisting the end of the jacking screw 5; the ball bearing 8 is connected to the tightening column 6 through the axis 7, and the round head end of the jacking screw 5 contacts the tightening column 6, thereby applying pressure to the tightening column 6 to restore the deformation caused by the wall.

[0015] The support rod 3 is fixed to the flange pressure ring through a locking nut 1 and a gasket 2.

[0016] The retaining frame 4 is fixed on the support rod 3 at a suitable height through two locking nuts 1 and two washers 2.

[0017] The direction of the tightening column 6 is adjustable. By adjusting the direction of the tightening column 6, it is ensured that the rolling direction of the ball bearing 8 is tangential to the wall circumference.

[0018] The following describes the installation process of the utility model in detail:

[0019] Drop the gas turbine wall into the installation position, use a feeler gauge to check the gap between the wall and the end face of the flange pressure ring, and find the position with the largest gap. This position is the operating area of ​​the device. Remove the original M10 on the flange pressure ring at this position, and fix the support rod 3 to the flange pressure ring through the lock nut 1 and gasket 2. Fix the retaining frame 4 to the support rod 3 at a suitable height through two lock nuts 1 and two gaskets 2. Screw the jacking screw 5 from top to bottom into the screw hole on the retaining frame. The tightening column 6 and the ball bearing 8 become one through the axis 7. The round head end of the jacking screw 5 contacts the tightening column 6, and pressure is applied to the tightening column 6. By adjusting the direction of the tightening column 6, ensure that the rolling direction of the ball bearing 8 is tangential to the wall circumference. After receiving the tightening force, the ball bearing 8 applies pressure to the wall surface to restore the wall deformation. Use a feeler gauge to check the gap between the wall and the end face of the flange pressure ring to ensure the restored state. Rotate the wall to a certain angle through the lifting ring on the wall to complete the installation.

[0020] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A gas turbine wall auxiliary installation device, characterized in that: The invention comprises a support rod (3), a retaining frame (4), a jacking screw (5), a tightening column (6), an axis (7) and a ball bearing (8); the support rod (3) is fixed on the flange pressure ring; the retaining frame (4) is fixed on the support rod (3); the jacking screw (5) is screwed into the screw hole of the retaining frame (4) from top to bottom through a thread; the ball bearing (8) is connected to the tightening column (6) through the axis (7), and contacts the tightening column (6) through the round head end of the jacking screw (5), thereby applying pressure to the tightening column (6).

2. A gas turbine wall auxiliary installation device according to claim 1, characterized in that: The support rod (3) is fixed to the flange pressure ring via a locking nut (1) and a gasket (2).

3. The gas turbine wall auxiliary installation device according to claim 1, characterized in that: The retaining frame (4) is fixed on the supporting rod (3) at a suitable height via two locking nuts (1) and two washers (2).

4. The gas turbine wall auxiliary installation device according to claim 1, characterized in that: The direction of the tightening column (6) is adjustable to ensure that the rolling direction of the ball bearing (8) is tangential to the wall circumference.

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