Auxiliary positioning clamp for stationary blade ring of gas turbine

Abstract

The utility model provides an auxiliary positioning clamp for a stationary blade ring of a gas turbine. The auxiliary positioning clamp comprises a frame body, a sliding mechanism and a disc body assembly, the sliding mechanism comprises a connecting plate, a lead screw, a nut, a guide rail A, a guide rail B and a hand wheel; guide rails are connected above and below the connecting plate, the guide rail A is fixed on the frame body, and the guide rail B is mounted at the top of the connecting plate and is connected with the disc body assembly; the lead screw is used in cooperation with the nut, and the lead screw rotates in the bearing by rotating the hand wheel. The frame is formed by welding the channel steel and is reinforced by the oblique beams, the static ring is prevented from being deformed due to weight increase during hot upsetting and riveting forming, the overall height of the tool is adjusted, a clamp can be fixed during upsetting and riveting, the locking mechanism assembly and the locking rotary handle are used for adjusting the upsetting and riveting position of the static ring, and locking and fixing are conducted. The sliding mechanism can move front and back and move left and right, the riveting position is rapidly adjusted, and position adjustment is convenient and rapid.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the upsetting riveting forming field, and specifically relates to a gas turbine stationary vane ring auxiliary positioning fixture. BACKGROUND

[0002] The gas turbine compressor stationary vane ring is one of core components of the gas turbine, and the quality of the gas turbine compressor stationary vane ring directly influences the compression ratio of the gas turbine, and further influences the combustion quality and power generation efficiency. In the assembly process of the high-pressure certain-stage stationary vane ring, the tongue of the blade is assembled into the inner ring, the tenon is installed into the inclined mortise of the outer ring, the blade and the inner ring become a whole through hot upsetting riveting, so that the stationary vane ring becomes a whole first, and then the subsequent processes such as turning, drilling, assembling, cutting and the like are carried out, and finally the component state forms a half ring. In the working process of the gas turbine, due to the influence of the pressure difference and vibration, the blade will have a certain amount of movement in the inner and outer rings. When the amount of movement is small, the efficiency of the compressor will be affected. When the amount of movement is large, not only the efficiency of the compressor will be affected, but also the rubbing between the rotor and the stator blade may occur, leading to the failure of the gas turbine. Therefore, in the process of hot upsetting riveting of the high-pressure certain-stage stationary vane ring, it is required to be fixed in a reliable position, so that the riveting position and size meet the design requirements, and the movement in the circumferential direction, radial direction and axial direction is prevented. SUMMARY

[0003] The utility model is directed to providing a gas turbine stationary vane ring auxiliary positioning fixture.

[0004] A gas turbine stationary vane ring auxiliary positioning fixture, comprising a frame body, a sliding mechanism and a disc assembly; the sliding mechanism comprises a connecting plate, a lead screw, a nut, a guide rail A, a guide rail B and a hand wheel; the connecting plate is provided with guide rails above and below, the guide rail A is fixed on the frame body, and the guide rail B is installed on the top of the connecting plate and connected with the disc assembly; the lead screw is used in cooperation with the nut, and the lead screw rotates in the bearing by rotating the hand wheel.

[0005] Further, the frame body comprises a frame and an adjusting foot; the adjusting foot is installed on the bottom of the frame, and the adjusting foot is used in cooperation with the nut through the screw thread, so that the overall height of the tooling is adjusted by tightening the nut.

[0006] Further, the sliding mechanism is further provided with a locking mechanism, the upper end surface of the lead screw and the hand wheel is fixed through the fastening bolt, and then the hand wheel is fixed.

[0007] Further, the hand wheel and the upper surface of the lead screw are fixed through the flat key.

[0008] Further, the nut is fixed on the connecting plate support seat.

[0009] Further, the disc assembly comprises a disc, a positioning ring and a follower wheel; the bottom of the disc is connected with the guide rail B; the positioning ring is installed on the disc, and the disc is provided with the follower wheel.

[0010] The utility model discloses beneficial effect lies in: the utility model discloses frame adopts channel steel welding and uses the inclined beam to reinforce, prevents static industry ring hot upset riveting and forms the deformation due to the weight increase, and the overall height of tooling is adjusted, can be fixed when upsetting riveting, locking mechanism component and locking handle adjust static industry ring upset riveting position, lock and fix, sliding mechanism can move, left and right movement, carry out quick adjustment riveting position, realize position adjustment convenient and fast. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the front view of the utility model;

[0012] Figure 2 It is structure diagram A of the utility model;

[0013] Figure 3 It is structure diagram B of the utility model. DETAILED DESCRIPTION

[0014] The utility model will be further described in connection with the drawings.

[0015] As Figure 1 Shown, a kind of static vane ring auxiliary positioning fixture of gas turbine, including frame body, sliding mechanism and disc assembly;Frame body includes frame 1, adjusting foot 2, inner hexagonal screw A 3 and nut 4;Frame 1 adopts channel steel welding and uses inclined beam to reinforce, prevents static vane ring hot upset riveting and forms the deformation due to the weight increase, adjusting foot 2 is processed thread, cooperates with nut 4, by screwing nut 4, the overall height of tooling is adjusted, so that tooling use surface is in horizontal state.

[0016] Sliding mechanism includes connecting plate 5, lead screw 6, nut 7, guide rail A 8-1, guide rail B 8-2, bearing seat 9, locking mechanism 10, hand wheel 11, flat key 12, inner hexagonal screw B 13, elastic pad A 14 and flat pad A 15;

[0017] The connecting plate 5 is connected with guide rails above and below, the guide rail A8-1 is fixed below the upper plane of the frame 1, the position is fastened by using the internal hexagonal screw B13, the elastic pad A14 and the flat pad A15, the lower surface of the connecting plate 5 is slidably connected with the guide rail, the guide rail can freely move in the round sleeve of the connecting plate; the nut 7 is fixed on the connecting plate 5 by welding, the lead screw 6 is used in cooperation with the nut 7, the lead screw 6 rotates in the bearing by rotating the hand wheel 11, the friction is reduced, the nut is driven to move along with the movement of the lead screw, and the connecting plate is moved, the locking mechanism 10 is a simple bolt locking, the upper end surface connected with the hand wheel 11 of the lead screw 6 is fixed by the fastening bolt, and the hand wheel is fixed, the hand wheel 11 and the upper surface of the lead screw 6 are fixed by the flat key 12, the sliding mechanism of the guide rail A8-1 can move forward and backward; the lower surface of the guide rail B8-2 is fixed above the connecting plate 5, the position is fastened by using the internal hexagonal screw B13, the elastic pad 14 and the flat pad 15, the nut 7 is fixed on the connecting plate support seat by welding. The sliding mechanism of the guide rail 8-2 uses the same principle as the sliding mechanism of the guide rail 8-1, and the sliding mechanism of the guide rail 8-2 can move left and right;

[0018] The disc assembly comprises a disc 16, a positioning ring 17, a flange wheel 18, an internal hexagonal screw C19, an elastic pad B20, a flat pad B21 and an internal hexagonal screw D22; the disc 16 is manufactured according to the size of the processed product, the positioning ring 17 is processed according to the size of the inner diameter of the product, so that the ring product is centered and fixed in position; the flange wheel 18 facilitates the sliding of the product on the disc, and reduces the friction; the upper surface of the guide rail 8-2 is fastened in position by the internal hexagonal screw C19, the elastic pad B20 and the flat pad B21.

[0019] The above only describes preferred embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A stationary vane ring auxiliary positioning fixture for a combustion engine, characterized by, The utility model relates to a frame, sliding mechanism and disc assembly, the sliding mechanism includes connecting plate (5), lead screw (6), nut (7), guide rail A (8-1), guide rail B (8-2) and hand wheel (11), the connecting plate (5) top and bottom are connected with guide rail, guide rail A (8-1) is fixed on frame, guide rail B (8-2) is installed on the top of connecting plate (5) and is connected with disc assembly, lead screw (6) is used with nut (7) cooperation, by rotating hand wheel (11), lead screw (6) rotates in bearing.

2. A vane ring auxiliary positioning fixture for a combustion engine as set forth in claim 1, characterized in that, The frame includes frame (1) and adjusting foot (2), adjusting foot (2) is installed on the bottom of frame (1), adjusting foot (2) is used with nut (4) cooperation through the thread, by tightening nut (4), the overall height of tooling is adjusted.

3. The stator vane ring auxiliary positioning fixture of claim 1, wherein, The sliding mechanism is further provided with locking mechanism (10), the upper end surface of lead screw (6) and hand wheel (11) is fixed by fastening bolt, and then hand wheel (11) is fixed.

4. A vane ring auxiliary positioning fixture for a combustion engine as set forth in claim 3, characterized in that, Hand wheel (11) and the upper surface of lead screw (6) are fixed by means of flat key (12).

5. The stator vane ring auxiliary positioning fixture of claim 1, wherein, Nut (7) is fixed on the connecting plate support seat.

6. A vane ring auxiliary positioning fixture for a combustion engine as set forth in claim 1, characterized in that, The disc assembly includes disc (16), positioning ring (17) and flywheel (18), the bottom of disc (16) is connected with guide rail B (8-2), positioning ring (17) is installed on disc (16), and flywheel (18) is arranged on disc (16).

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