Dual-purpose puller for rear seal and bearing shell of gas turbine

Abstract

The utility model relates to the technical field of gas turbine decomposition equipment, and discloses a dual-purpose puller for a rear seal and a bearing shell of a gas turbine, which comprises a support frame, a lifting plate, an adjusting rod, a double-sided clip and a plurality of groups of connecting rods, the lifting plate is arranged above the support frame, the double-sided clip is arranged below the support frame, and the adjusting rod is arranged below the double-sided clip. A screw rod of the adjusting rod is arranged in the center of the lifting plate through threads, the bottom of the screw rod of the adjusting rod is rotationally arranged in the center of the lifting plate, the head of the connecting rod is arranged above the lifting plate, a bottom rod of the connecting rod sequentially penetrates through the lifting plate and the supporting frame to be detachably connected with the double-face clamp, and the double-face clamp is in a circular ring shape. The puller can be stably disassembled, the conditions of pulling deviation, pulling damage and the like are avoided, a seal and a bearing shell can be disassembled in a matched mode, and the using effect of the puller is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas turbine disassembly equipment, in particular to a dual-purpose pulling tool for a gas turbine rear seal and a bearing housing. Background Art

[0002] Pullers play a very important role in the disassembly of precision assembly parts in the machinery industry. The correct design and use of pullers are also particularly important in the disassembly of the seal and bearing housing in the rear frame of the gas turbine. At present, there is an interference fit between the seal and the gas turbine shaft, and there is also an interference fit between the bearing housing and the rear frame. Moreover, the fit angle between them is compact and the structure is special. It often requires multiple people to cooperate and use multiple tools to remove the seal and bearing housing from the rear frame of the gas turbine.

[0003] There are at least the following problems in the prior art: first, unreasonable disassembly methods or tools may cause parts to be pulled off-center or damaged due to the inability to apply force evenly, resulting in damage and deformation of the mating surface or the entire part; second, the parts to be disassembled are all assembled inside the gas turbine, and the working space is limited. Without the assistance of a puller, the disassembly will be difficult and time-consuming, or even impossible to complete. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model develops a dual-purpose puller for a gas turbine rear seal and a bearing housing. The utility model can stably disassemble to avoid deviation and strain, and can also be adapted to disassemble the seal and the bearing housing, thereby effectively improving the use effect of the puller.

[0005] The technical solution to the technical problem solved by the utility model is: a dual-purpose puller for a gas turbine rear seal and a bearing housing, comprising a support frame, a lifting plate, an adjusting rod, a double-sided clip and a plurality of connecting rods, wherein the lifting plate is arranged above the support frame, the double-sided clip is arranged below the support frame, the screw of the adjusting rod is arranged at the center of the lifting plate through a thread, the bottom of the screw of the adjusting rod is rotatably arranged at the center of the lifting plate, the head of the connecting rod is arranged above the lifting plate, the bottom rod of the connecting rod passes through the lifting plate and the support frame in sequence and is detachably connected to the double-sided clip, and the double-sided clip is in a circular ring shape.

[0006] As an optimization, the support frame includes a support plate and a support leg arranged at the bottom of the support plate. A rotation hole is arranged on the support plate, and a locking nut is arranged below the support plate. The bottom of the adjusting rod screw passes through the rotation hole and is detachably connected to the locking nut. By setting the support plate and the through hole, the connecting rod can be limited to ensure the stable lifting of the lifting plate and the double-sided clip; by setting the support leg, the support plate can be supported; by setting the rotation hole and the locking nut, the adjusting rod screw can be rotated in the rotation hole to prevent the adjusting rod from falling out of the rotation hole.

[0007] As an optimization, the diameter of the bottom rod of the connecting rod is equal to the diameter of the limiting hole, and the bottom end of the bottom rod of the connecting rod is provided with a thread. This can ensure that the connecting rod will not shake during the lifting process and effectively stabilize the double-sided clip.

[0008] As an optimization, the double-sided clip includes several groups of arc-shaped clips, and two adjacent groups of clips are connected to each other by bolts. By providing several groups of clips, it is convenient to disassemble and assemble, which is conducive to assembly in a limited space and clipping with the rear seal or the bearing housing.

[0009] As an optimization, a first mounting plate is provided on the outer side wall of the ends at both ends of the clamping member, and a mounting hole is provided on the first mounting plate. By providing the first mounting plate and the mounting hole, the clamping member can be assembled by bolts.

[0010] As an optimization, the clamping parts include an upper clamping plate, a side plate and a lower clamping plate. The upper clamping plate and the lower clamping plate are parallel to each other. The outer side of the upper clamping plate is connected to the outer side of the lower clamping plate through a vertically arranged side plate. The first mounting plate is arranged on the side plate. The width of the upper clamping plate is smaller than that of the lower clamping plate. By arranging the upper clamping plate and the lower clamping plate, the rear seal or the bearing housing can be clamped respectively, and parts of different diameters can be adapted. By arranging the side plate, the upper clamping plate and the lower clamping plate can be connected, and the first mounting plate can be conveniently installed.

[0011] As an optimization, a second mounting plate is provided on the side plate, and a threaded hole matching the thread of the bottom rod of the connecting rod is provided on the second mounting plate. By providing the second mounting plate, it can be threadedly connected with the bottom rod of the connecting rod, thereby driving the double-sided clip to stably rise and fall.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] By providing a support frame, it can be stably supported on the rear frame; by providing a lifting plate and a connecting rod, the double-sided clip is subjected to uniform force, and the double-sided clip can be stably driven to lift vertically, so that the rear seal and the bearing housing can be removed without pulling deviation or straining of parts, and the matching surface of the parts or the entire damage and deformation can be prevented, and the connecting rod can also prevent the lifting plate from rotating; by providing an adjusting rod, it is convenient for the staff to rotate the head of the adjusting rod so that the lifting plate can be lifted and lowered on the screw of the adjusting rod; by providing a double-sided clip, the two sides can be respectively matched with the rear seal and the bearing housing, and the parts can be clamped in a circular form, so that they can be uniformly stressed during disassembly; the utility model can not only stably disassemble and avoid pulling deviation, straining and the like, but also can be adapted to disassemble the seal and the bearing housing, effectively improving the use effect of the puller. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic diagram of the overall structure of an embodiment.

[0015] Figure 2It is a left view of an embodiment of the utility model.

[0016] Figure 3 The figure is a schematic structural diagram of a double-sided clip in one embodiment of the utility model.

[0017] In the figure, 1, support frame; 2, lifting plate; 3, adjustment rod; 4, double-sided clip; 5, connecting rod; 6, locking nut; 7, first mounting plate; 8, second mounting plate;

[0018] 11. Support plate; 12. Support legs;

[0019] 41. Card connector;

[0020] 411, upper pallet; 412, side panel; 413, lower pallet. DETAILED DESCRIPTION

[0021] In order to clearly illustrate the technical features of the present invention, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0022] Example 1

[0023] Figures 1 to 3 An embodiment of the present utility model is as follows: Figures 1 to 3 As shown, a dual-purpose puller for the rear seal and bearing housing of a gas turbine includes a support frame 1, a lifting plate 2, an adjusting rod 3, a double-sided clip 4 and a plurality of groups of connecting rods 5. The lifting plate 2 is horizontally arranged above the support frame 1, and the double-sided clip 4 is arranged below the support frame 1. The screw of the adjusting rod 3 is arranged in the center of the lifting plate 2 through a thread, and the bottom of the screw of the adjusting rod 3 is rotatably arranged in the center of the lifting plate 2. A plurality of groups of connecting rods 5 are evenly arranged around the adjusting rod 3. The connecting rod 5 is slidably arranged on the lifting plate 2, and the head of the connecting rod 5 is arranged above the lifting plate 2. The bottom rod of the connecting rod 5 passes through the through holes on the lifting plate 2 and the support frame 1 in turn and is detachably connected to the double-sided clip 4, and the double-sided clip 4 is in a circular ring shape.

[0024] By setting up the support frame 1, it can be stably supported on the rear frame; by setting up the lifting plate 2 and the connecting rod 5, the double-sided clip 4 can be evenly stressed, and can stably drive the double-sided clip 4 to rise and fall vertically, so that the rear seal and the bearing housing can be removed without pulling deviation or damaging the parts, and the matching surface of the parts or the entire parts can be prevented from being damaged and deformed. The connecting rod 5 can also prevent the lifting plate 2 from rotating; by setting up the adjusting rod 3, it is convenient for the staff to rotate the head of the adjusting rod 3 so that the lifting plate 2 can be lifted and lowered on the screw of the adjusting rod 3; by setting up the double-sided clip 4, the two sides can be respectively adapted to the rear seal and the bearing housing, and the parts can be clamped in a circular form so that they can be evenly stressed during disassembly.

[0025] like Figure 1 and Figure 2As shown, the support frame 1 includes a support plate 11 and a support leg 12 arranged at the bottom of the support plate 11. A rotation hole is provided on the support plate 11, and a locking nut 6 is provided below the support plate 11. The bottom of the screw of the adjustment rod 3 passes through the rotation hole and is detachably connected to the locking nut 6. By providing the support plate 11 and the through hole, the connecting rod 5 can be limited to ensure the stable lifting of the lifting plate 2 and the double-sided clip 4; by providing the support leg 12, the support plate 11 can be supported; by providing the rotation hole and the locking nut 6, the screw of the adjustment rod 3 can be rotated in the rotation hole to prevent the adjustment rod 3 from falling out of the rotation hole.

[0026] like Figure 1 and Figure 2 As shown, the diameter of the bottom rod of the connecting rod 5 is equal to the diameter of the limiting hole, and the bottom end of the bottom rod of the connecting rod 5 is provided with a thread, which can ensure that the connecting rod 5 will not shake during the lifting process, and effectively stabilize the double-sided clip 4.

[0027] like Figures 1 to 3 As shown, the double-sided clip 4 includes several groups of arc-shaped clips 41, and two adjacent groups of clips 41 are connected to each other by bolts. By providing several groups of clips 41, it is convenient to disassemble and assemble in a limited space, and to be clipped with the rear seal or the bearing housing.

[0028] like Figures 1 to 3 As shown, first mounting plates 7 are provided on the outer side walls of the ends of the clamping member 41, and mounting holes are provided on the first mounting plates 7. By providing the first mounting plates 7 and the mounting holes, the clamping member 41 can be assembled by bolts.

[0029] like Figures 1 to 3 As shown, the clamping member 41 includes an upper clamping plate 411, a side plate 412 and a lower clamping plate 413. The upper clamping plate 411 and the lower clamping plate 413 are parallel to each other. The outer side of the upper clamping plate 411 is connected to the outer side of the lower clamping plate 413 through the vertically arranged side plate 412. The first mounting plate 7 is arranged on the side plate 412. The width of the upper clamping plate 411 is smaller than that of the lower clamping plate 413. By arranging the upper clamping plate 411 and the lower clamping plate 413, the rear seal or the bearing housing can be clamped respectively, and parts of different diameters can be adapted. By arranging the side plate 412, the upper clamping plate 411 and the lower clamping plate 413 can be connected, and the first mounting plate 7 can be conveniently installed.

[0030] like Figures 1 to 3 As shown, the side plate 412 is provided with a second mounting plate 8, and the second mounting plate 8 is provided with a threaded hole that matches the thread of the bottom rod of the connecting rod 5. By providing the second mounting plate 8, it can be threadedly connected with the bottom rod of the connecting rod 5, thereby driving the double-sided clip 4 to stably rise and fall.

[0031] When in use, the clamping piece 41 can be provided with two groups, the two groups of clamping pieces 41 are semicircular, and the connecting rod 5 can be provided with three groups; first, the parts are clamped with the clamping piece 41, and then the first mounting plates 7 of the two groups of clamping pieces 41 are connected by bolts to complete the fixation of the double-sided clip 4; then the support frame 1 is placed in the rear frame of the gas turbine, and the staff rotates the adjusting rod 3 counterclockwise with a wrench or other tool, and the lifting plate 2 descends with the rotation of the adjusting rod 3, and the connecting rod 5 also descends with the lifting plate 2 until the connecting rod 5 can be connected with the threaded hole on the second mounting plate 8; then the bottoms of the three groups of connecting rods 5 are screwed into the threaded holes on the second mounting plate 8 in turn, and the heights of the three groups of connecting rods 5 are kept consistent so that the three groups of connecting rods 5 are evenly stressed; then the staff rotates the adjusting rod 3 clockwise with a wrench or other tool, and the lifting plate 2 rises with the rotation of the adjusting rod 3, and drives the double-sided clip 4 to rise stably through the three groups of connecting rods 5, thereby safely pulling out the interference fit parts. The utility model can not only stably disassemble to avoid deviation and injury, but also can be adapted to disassemble the seal and the bearing housing, thus effectively improving the use effect of the puller.

[0032] The descriptions of the orientation or relative position relationship of the structure in the present invention, such as the orientation or relative position relationship indicated by "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structure referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

Claims

1. A dual-purpose puller for a gas turbine rear seal and a bearing housing, comprising a support frame (1), characterized in that: The invention also comprises a lifting plate (2), an adjusting rod (3), a double-sided clip (4) and a plurality of connecting rods (5); the lifting plate (2) is arranged above the support frame (1); the double-sided clip (4) is arranged below the support frame (1); the screw of the adjusting rod (3) is arranged at the center of the lifting plate (2) through a thread; the bottom of the screw of the adjusting rod (3) is rotatably arranged at the center of the lifting plate (2); the head of the connecting rod (5) is arranged above the lifting plate (2); the bottom rod of the connecting rod (5) passes through the lifting plate (2) and the support frame (1) in sequence and is detachably connected to the double-sided clip (4); the double-sided clip (4) is in a circular ring shape.

2. The dual-purpose puller for the gas turbine rear seal and bearing housing according to claim 1, characterized in that: The support frame (1) comprises a support plate (11) and a support leg (12) arranged at the bottom of the support plate (11); a rotation hole is provided on the support plate (11); a locking nut (6) is provided below the support plate (11); and the bottom of the screw of the adjustment rod (3) passes through the rotation hole and is detachably connected to the locking nut (6).

3. The dual-purpose puller for the gas turbine rear seal and bearing housing according to claim 2, characterized in that: The diameter of the bottom rod of the connecting rod (5) is equal to the diameter of the limiting hole, and the bottom end of the bottom rod of the connecting rod (5) is provided with a thread.

4. The dual-purpose puller for the gas turbine rear seal and bearing housing according to any one of claims 1 to 3, characterized in that: The double-sided clip (4) comprises a plurality of groups of arc-shaped clipping parts (41), and two adjacent groups of clipping parts (41) are connected to each other via bolts.

5. The dual-purpose puller for the gas turbine rear seal and bearing housing according to claim 4, characterized in that: A first mounting plate (7) is provided on the outer side walls of the ends of both ends of the clamping member (41), and a mounting hole is provided on the first mounting plate (7).

6. The dual-purpose puller for the gas turbine rear seal and bearing housing according to claim 5, characterized in that: The clamping member (41) comprises an upper clamping plate (411), a side plate (412) and a lower clamping plate (413); the upper clamping plate (411) and the lower clamping plate (413) are parallel to each other; the outer side of the upper clamping plate (411) is connected to the outer side of the lower clamping plate (413) via a vertically arranged side plate (412); the first mounting plate (7) is arranged on the side plate (412); and the width of the upper clamping plate (411) is smaller than that of the lower clamping plate (413).

7. The dual-purpose puller for the gas turbine rear seal and bearing housing according to claim 6, characterized in that: A second mounting plate (8) is provided on the side plate (412), and a threaded hole matching the thread of the bottom rod of the connecting rod (5) is provided on the second mounting plate (8).

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