Turbine bearing bush dismounting tool

Abstract

The utility model relates to the technical field of steam turbine maintenance, in particular to a steam turbine bearing bush dismounting tool which comprises a connecting rod, a bearing bush connector detachably connected to one end of the connecting rod and a hoisting seat arranged on the connecting rod. The bearing bush connector comprises an arc-shaped connecting plate, and two connecting threaded holes are symmetrically formed in the arc-shaped connecting plate; through the taking and placing groove, taking is convenient, and the dismounting operation cost is saved; in practical application, during use, the bearing bush connector at the end of the connecting rod extends into the bearing bush nest, the connecting threaded hole and the inner threaded hole in the bearing bush are screwed through the screw, then the hook of an external crane and the hoisting seat are tightened through the rope, and when the hoisting seat is dragged by the external crane, the bearing bush in the bearing bush nest can be dragged out through the connecting rod and the bearing bush connector; according to the utility model, the bearing bush in the bush nest is easier to detach, and the maintenance time of a steam turbine generator set is shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to turbine maintenance technical field, concretely is turbine bearing bush dismounting tool. BACKGROUND

[0002] The bearing bush 4 is the part of the sliding bearing and the shaft neck contact, and the shape is the semicylindrical surface of the tile shape, and the end face of the semicylindrical surface is provided with the internal thread hole 41, and the inner arc surface of the bearing bush 4 is provided with a plurality of oil passing thread holes 42 that are communicated with the outer arc surface, and the bearing bush 4 is mainly used to support, reduce friction and improve the rotation accuracy, and in the maintenance process of the steam turbine generator set, the old bearing bush needs to be removed, but the old bearing bush is installed in the tile hole, and workers are difficult to enter the tile hole to work, and the crane and the lifting appliance in the tile hole do not have vertical lifting conditions, so that the maintenance operation of the steam turbine generator set is extremely long. SUMMARY

[0003] The utility model discloses to the above -mentioned insufficient, provide a kind of turbine bearing bush dismounting tool, the bearing bush in tile hole can be more easily unloaded, shorten the maintenance time length of steam turbine generator set.

[0004] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] Turbine bearing bush dismounting tool, including connecting rod, the bearing bush connector detachably connected at one end of the connecting rod, set up on the lifting seat of the connecting rod;The bearing bush connector includes arc-shaped connecting plate, and two connecting thread holes are symmetrically arranged on the arc-shaped connecting plate.

[0006] Further, one end of the arc-shaped connecting plate is provided with an arc-shaped positioning block, and an outer arc surface is arranged on the arc-shaped positioning block, and when the outer arc surface is inserted into the inner arc surface of the bearing bush, the connecting thread hole is opposite to the internal thread hole.

[0007] Further, a plurality of bearing bush thread holes are arranged on the inner arc surface of the arc-shaped positioning block, and the connecting rod is provided with a counterweight at the end away from the bearing bush connector.

[0008] Further, mounting thread holes are arranged on the arc-shaped connecting plate, one end of the connecting rod is provided with external threads, and the external threads are screwed with the mounting thread holes.

[0009] Further, the lifting seat includes two lifting rings fixedly sleeved on the connecting rod, and two anti-dropping rings are fixedly sleeved on the lifting rings, the outer diameter of the anti-dropping ring is larger than the outer diameter of the lifting ring, and a gap is left between the two anti-dropping rings.

[0010] The utility model has the advantages of:

[0011] In actual application, the shaft bushing connecting head of the connecting rod end is inserted into the bushing nest, the connecting screw holes and the internal thread holes on the shaft bushing are screwed tightly, the hook of the external boat is bound tightly with the hoisting seat through a rope, when the external boat pulls the hoisting seat, the shaft bushing in the bushing nest can be pulled out through the connecting rod and the shaft bushing connecting head; the bushing nest can be dismounted more easily, and the maintenance time of the steam turbine generator set is shortened. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is the structural schematic diagram of the first visual angle of the utility model;

[0013] Figure 2 is the structural schematic diagram of the second visual angle of the utility model;

[0014] Figure 3 is the structural schematic diagram of the utility model in use;

[0015] Figure 4 is the structural schematic diagram of the shaft bushing;

[0016] The connecting rod 1, the shaft bushing connecting head 2, the arc-shaped connecting plate 21, the connecting screw hole 22, the arc-shaped positioning block 23, the bushing screw hole 24, the hoisting seat 3, the hoisting ring 31, the anti-falling ring 32, the shaft bushing 4, the internal thread hole 41, the oil passing thread hole 42, and the counterweight 5. DETAILED DESCRIPTION

[0017] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , the steam turbine shaft bushing dismounting tool comprises a connecting rod 1, a shaft bushing connecting head 2 which is detachably connected to one end of the connecting rod 1, and a hoisting seat 3 arranged on the connecting rod 1.

[0018] In use, the shaft bushing connecting head 2 at the end of the connecting rod 1 is inserted into the bushing nest, the connecting screw holes 22 and the internal thread holes 41 on the shaft bushing 4 are screwed tightly, the hook of the external boat is bound tightly with the hoisting seat 3 through a rope, when the external boat pulls the hoisting seat 3, the shaft bushing 4 in the bushing nest can be pulled out through the connecting rod 1 and the shaft bushing connecting head 2; the bushing nest can be dismounted more easily, and the maintenance time of the steam turbine generator set is shortened.

[0019] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4As shown in the figure, one end of the arc-shaped connecting plate 21 is provided with an arc-shaped positioning block 23, and the arc-shaped positioning block 23 is provided with an outer arc surface. When the outer arc surface is inserted into the inner arc surface of the bearing bush 4, the connecting threaded hole 22 is opposite to the inner threaded hole 41. In this embodiment, the outer arc surface of the arc-shaped positioning block 23 is inserted into the inner arc surface of the bearing bush 4, so as to position the connecting threaded hole 22 on the arc-shaped connecting plate 21, and the connecting threaded hole 22 is opposite to the inner threaded hole 41 on the bearing bush 4.

[0020] As shown in the figure, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown in the figure, the inner arc surface of the arc-shaped positioning block 23 is provided with a plurality of bearing bush threaded holes 24 which are communicated with the outer arc surface. The connecting rod 1 is provided with a counterweight 5 away from the bearing bush connecting head 2. In this embodiment, when the new bearing bush 4 is installed, the arc-shaped positioning block 23 and the bearing bush 4 can be connected by screwing the bearing bush threaded hole 24 and the oil passing threaded hole 42 on the bearing bush 4. At this time, the hook of the external navigation vehicle is bound to the lifting seat 3 through the rope, and the external navigation vehicle can send the bearing bush 4 into the bearing bush through the connecting rod 1, and the counterweight 5 can keep the bearing bush 4 balanced during lifting.

[0021] As shown in the figure, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown in the figure, the arc-shaped connecting plate 21 is provided with a mounting threaded hole, and one end of the connecting rod 1 is provided with an outer thread which is screwed with the mounting threaded hole. In this embodiment, the outer thread is screwed with the mounting threaded hole, so as to replace the bearing bush connecting head 2, and the tool is suitable for disassembling and using various models of bearing bushes 4.

[0022] As shown in the figure, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown in the figure, the lifting seat 3 includes two lifting rings 31 which are fixedly sleeved on the connecting rod 1, and two anti-dropping rings 32 which are fixedly sleeved on the lifting rings 31. The outer diameter of the anti-dropping ring 32 is greater than the outer diameter of the lifting ring 31, and a gap is left between the two anti-dropping rings 32. In this embodiment, when in use, the hook of the external navigation vehicle is bound to the lifting ring 31 between the two anti-dropping rings 32 through the rope, and the anti-dropping ring 32 prevents the bound rope from sliding on the lifting ring 31.

[0023] The specific embodiments described herein are merely illustrative of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, without deviating from the scope defined by the present application.

Claims

1. A tool for disassembling and assembling steam turbine bearings, characterized in that: Includes a connecting rod (1), a bearing bush connector (2) detachably connected to one end of the connecting rod (1), and a lifting seat (3) disposed on the connecting rod (1); the bearing bush connector (2) includes an arc-shaped connecting plate (21), and two connecting threaded holes (22) are symmetrically arranged on the arc-shaped connecting plate (21).

2. The turbine bearing assembly and disassembly tool according to claim 1, characterized in that, One end of the arc-shaped connecting plate (21) is provided with an arc-shaped positioning block (23). The arc-shaped positioning block (23) is provided with an outer arc surface. When the outer arc surface is inserted into the inner arc surface of the bearing (4), the connecting threaded hole (22) is set directly opposite the inner threaded hole (41).

3. The turbine bearing assembly and disassembly tool according to claim 2, characterized in that, The inner arc surface of the arc-shaped positioning block (23) is provided with multiple threaded holes (24) for mounting the bearings that connect to the outer arc surface, and a counterweight (5) is provided at the end of the connecting rod (1) away from the bearing connector (2).

4. The turbine bearing assembly and disassembly tool according to claim 1, characterized in that, The arc-shaped connecting plate (21) is provided with a mounting threaded hole, and one end of the connecting rod (1) is provided with an external thread, which is screwed into the mounting threaded hole.

5. The turbine bearing assembly and disassembly tool according to claim 1, characterized in that, The lifting base (3) includes two lifting rings (31) fixedly sleeved on the connecting rod (1) and two anti-detachment rings (32) fixedly sleeved on the lifting rings (31). The outer diameter of the anti-detachment rings (32) is larger than the outer diameter of the lifting rings (31), and there is a gap between the two anti-detachment rings (32).

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