Tool for removing primary turbine moving blade of 9E gas turbine

Abstract

The utility model discloses a 9E gas turbine first-stage turbine moving blade removing tool. When a 9E gas turbine primary turbine moving blade is overhauled, disassembled and assembled, a locking pin is often rusted and jammed, time and labor are wasted when the locking pin needs to be disassembled, and equipment is possibly damaged once misoperation is carried out. The clamp comprises a push piece, a clamp body and a fixing bolt, the clamp body comprises an inner clamping head, an outer clamping sleeve and a protective sleeve, the inner clamping head is sleeved with the outer clamping sleeve, the outer clamping sleeve is sleeved with the protective sleeve, the push piece penetrates through a notch of the inner clamping head and is inserted into an inserting opening of the outer clamping sleeve, and the fixing bolt is arranged on the outer clamping sleeve. And a spring is connected between the outer clamping sleeve and the inner clamping head. The dismounting tool is used for dismounting the first-stage turbine moving blade of the 9E gas turbine.

Description

Technical Field

[0001] The utility model relates to a tool for removing moving blades of a first-stage turbine of a 9E gas engine. Background Art

[0002] The 9E gas turbine is widely used in my country's gas turbine industry. The first stage of the 9E gas turbine has 92 rotor blades. Installation and removal of the first stage of the 9E gas turbine follow a fixed sequence: the first rotor blade removed is the last rotor blade installed. After the rotor blades are installed, axial locking pins must be installed to prevent axial movement. After the axial locking pins are installed, radial locking pins must be added to prevent the axial pins from falling out. Due to the harsh operating environment of gas turbines and the long overhaul cycle, the locking pins often rust and become stuck during the inspection and removal of the first stage of the 9E gas turbine. Removing the locking pins is not only time-consuming and labor-intensive, but can also damage the equipment if improperly handled. Utility Model Content

[0003] The purpose of the utility model is to provide a 9E gas engine first stage turbine moving blade removal tool to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A 9E gas engine first-stage turbine blade removal tool comprises a push piece, a clamp and a fixing bolt. The clamp comprises an inner chuck, an outer sleeve and a protective sleeve. The outer sleeve is sleeved on the inner chuck, and the protective sleeve is sleeved on the outer sleeve. The push piece passes through the notch of the inner chuck and is inserted into the socket of the outer sleeve. A spring is connected between the outer sleeve and the inner chuck.

[0006] The 9E gas engine first-stage turbine moving blade removal tool has an outer jacket that is a cylindrical collar structure with a striking head at its end. A socket is provided at the top of the outer ring surface of the cylindrical collar, two notches are provided at the center of the bottom surface of the cylindrical collar, and a mounting screw hole is provided at the bottom of the outer ring surface of the cylindrical collar.

[0007] The 9E gas engine first-stage turbine moving blade removal tool has an inner chuck of a cylindrical head structure, a limiting groove is provided at the bottom of the cylindrical head side surface along the axial direction, a circular groove is provided at the end face of the cylindrical head, and a notch is provided at the top of the cylindrical head side surface.

[0008] The protective sleeve of the 9E gas engine first-stage turbine moving blade removal tool is a circular sleeve, and the outer ring surface of the circular sleeve is provided with positioning screw holes.

[0009] The tool for removing the first-stage turbine blades of a 9E gas engine is characterized in that the fixing bolt passes through the positioning screw hole and the mounting screw hole and is then inserted into the limiting groove of the inner chuck. Beneficial effects

[0010] 1. The utility model places the push piece of the tool into the gap between the moving blades, fixes the push piece with a clamp, and knocks the clamp to push out the axial locking pin of the first-stage turbine moving blade of the 9E gas engine through the push piece, making the disassembly of the first-stage turbine moving blade of the 9E gas engine quick and labor-saving.

[0011] 2. The clamp in the present invention includes an inner clamp, an outer sleeve and a protective sleeve. The notch of the inner clamp is opposite to the socket of the outer sleeve. The push piece is inserted through this opening. The inner clamp can guide the push piece to prevent the position of the push piece from changing during the knocking process.

[0012] 3. The utility model is provided with a spring, which can play a buffering role on the inner clamp to prevent the inner clamp from changing its position and touching the moving blade during the knocking process, causing damage to the moving blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Attachment Figure 1 It is the main view of the utility model;

[0014] Attachment Figure 2 It is a side view of the utility model;

[0015] Attachment Figure 3 It is the main view of the outer jacket;

[0016] Attachment Figure 4 is a side view of the outer jacket;

[0017] Attachment Figure 5 It is the main view of the inner chuck;

[0018] Attachment Figure 6 It is a side view of the inner chuck;

[0019] Attachment Figure 7 It is a schematic diagram of the structure of the protective cover;

[0020] Attachment Figure 8 It is a structural diagram of the push piece;

[0021] Attachment Figure 9 It is a structural diagram of the spring;

[0022] In the figure: 1. Outer sleeve; 2. Inner chuck; 3. Protective sleeve; 4. Spring; 5. Fixing bolt; 6. Push piece; 11. Striking head; 12. Notch; 13. Socket; 14. Cylindrical collar; 15. Mounting screw hole; 21. Circular groove; 22. Cylindrical head; 23. Limiting groove; 24. Notch; 31. Positioning screw hole. DETAILED DESCRIPTION

[0023] Reference Figure 1-Figure 2A 9E gas engine first-stage turbine moving blade removal tool, which consists of a push piece 6, a clamp and a fixing bolt 5. The clamp includes an inner chuck 2, an outer sleeve 1 and a protective sleeve 3. The outer sleeve is sleeved on the inner chuck, the protective sleeve is sleeved on the outer sleeve, and the protective sleeve is sleeved on the outer sleeve to prevent the push piece from falling out of the outer sleeve. The push piece passes through the notch 24 of the inner chuck and is inserted into the socket 13 of the outer sleeve. A spring 4 is connected between the outer sleeve and the inner chuck.

[0024] Reference Figure 3-Figure 4 The outer sleeve is a cylindrical sleeve 14 structure with a striking head 11 at its end. A socket 13 is provided at the top of the outer ring surface of the cylindrical sleeve, two notches 12 are provided at the center of the bottom surface of the cylindrical sleeve, and a mounting screw hole 15 is provided at the bottom of the outer ring surface of the cylindrical sleeve.

[0025] Reference Figure 5-Figure 6 The inner chuck is a cylindrical 22 structure, and the bottom of the cylindrical head side has a limiting groove 23 along the axial direction, the end face of the cylindrical head has a circular groove 21, and the top of the cylindrical head side has a notch 24.

[0026] Reference Figure 7-Figure 9 The protective sleeve is a circular sleeve, and a positioning screw hole is opened on the outer ring surface of the circular sleeve. The fixing bolt passes through the positioning screw hole and the installation screw hole and is inserted into the limiting groove of the inner chuck.

[0027] Working principle: During installation, put the outer jacket on the inner chuck, align the socket of the outer jacket with the notch of the inner chuck, insert the push piece along the socket, then put the protective sleeve on the outer jacket, thread the fixing bolts with the positioning screw holes, pass through the positioning screw holes and the installation screw holes, and then extend into the limit groove of the inner chuck. The width of the push piece meets the requirements for inserting into the clearance of the first-stage moving blade.

[0028] The protective sleeve is put on the outer jacket to prevent the push piece from falling out of the outer jacket. At the same time, a fixing bolt is provided to fix the position of the outer jacket. At the same time, the fixing bolt is inserted into the limiting groove to limit the sliding position of the inner chuck and prevent the inner chuck from falling out.

[0029] Align the socket of the outer jacket with the notch of the inner chuck, and insert the push piece along the socket. The notch of the inner chuck and the socket of the outer jacket limit the push piece, and the position of the push piece can be changed when knocked.

Claims

1. A 9E gas turbine first stage turbine blade removal tool, characterized by: Its composition includes a push piece, a clamp and a fixing bolt. The clamp includes an inner chuck, an outer sleeve and a protective sleeve. The outer sleeve is sleeved on the inner chuck, and the protective sleeve is sleeved on the outer sleeve. The push piece passes through the notch of the inner chuck and is inserted into the socket of the outer sleeve. A spring is connected between the outer sleeve and the inner chuck.

2. A 9E gas engine first stage turbine blade removal tool according to claim 1, characterized in that: The outer jacket is a cylindrical ring structure with a striking head at its end. A socket is provided at the top of the outer ring surface of the cylindrical ring, two notches are provided at the center of the bottom surface of the cylindrical ring, and a mounting screw hole is provided at the bottom of the outer ring surface of the cylindrical ring.

3. The 9E gas engine first stage turbine blade removal tool according to claim 2, characterized in that: The inner chuck is a cylindrical head structure, the bottom of the cylindrical head side has a limiting groove along the axial direction, the end face of the cylindrical head has a circular groove, and the top of the cylindrical head side has a notch.

4. A 9E gas engine first stage turbine blade removal tool according to claim 3, characterized in that: The protective sleeve is a circular sleeve, and the outer ring surface of the circular sleeve is provided with positioning screw holes.

5. A 9E gas engine first stage turbine blade removal tool according to claim 4, characterized in that: The fixing bolt passes through the positioning screw hole and the mounting screw hole and is inserted into the limiting groove of the inner clamp.

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