Special tool for disassembling and assembling temperature sensor of generator guide bearing

Abstract

A special tool for disassembling and assembling a generator guide bearing temperature sensor comprises a box spanner head, a connecting rod, a handle connector and a ratchet handle. One end of the connecting rod is connected with the outer wall of the box spanner head, and the included angle between the connecting rod and the box spanner head is a right angle. One end of the ratchet handle is movably connected with the handle connector in a matched mode, and the included angle between the ratchet handle and the connecting rod is a right angle. The double offset ring spanner head and the connecting rod are connected to be equivalent to a spanner, the ratchet handle is equivalent to another spanner, the two spanners with different structures can be used independently or used in a matched mode, and the problem that a traditional tool is not uniform in fastening tightness or difficult to disassemble due to space limitation is solved. The maintenance quality is ensured, and the difficulty of mounting and dismounting in the maintenance process is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of maintenance tools for hydroelectric power generation equipment, and relates to a special tool for disassembling and assembling a temperature sensor of a guide bearing of a generator. Background Art

[0002] In the daily maintenance and overhaul of hydro-turbine generator sets, the overhaul of the generator part often involves the disassembly and assembly of the guide bearing temperature sensor. First of all, the traditional disassembly and assembly method is time-consuming, labor-intensive and inefficient. Since the guide bearing temperature sensor is usually installed in a narrow space, when using traditional tools for disassembly and assembly, the operator needs to spend a lot of time and energy to position and fix it, which not only increases the overhaul time, but also reduces work efficiency.

[0003] Secondly, it is difficult or impossible to operate in some narrow spaces. In some specific locations of some specific turbine guide bearings, due to the limitation of the sensor cable, the sensor locking nut can only be slowly loosened using a flat-end wrench, which is time-consuming, labor-intensive and extremely inconvenient.

[0004] In addition, conventional disassembly and assembly tools have the problem of being easily damaged by the sensor. Due to improper operation or defects of the tool itself, the sensor is easily damaged during the disassembly and assembly process. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide a special tool for disassembling and assembling a temperature sensor of a guide bearing of a generator, which does not damage the sensor during the disassembling and assembling process, is easy to operate and has high efficiency.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: a special tool for disassembling and assembling a generator guide bearing temperature sensor, which includes a plum blossom wrench head, a connecting rod, a handle interface and a ratchet handle; one end of the connecting rod is connected to the outer wall of the plum blossom wrench head, and the angle between the connecting rod and the plum blossom wrench head is a right angle; the handle interface is arranged at the other end of the connecting rod, one end of the ratchet handle is movably connected to the handle interface, and the angle between the ratchet handle and the connecting rod is a right angle.

[0007] A thread passing hole is arranged at the edge of the plum wrench head.

[0008] The main beneficial effects of the utility model are:

[0009] The plum wrench head and wire-passing port design allow for disassembly and assembly without removing the sensor wires, greatly improving disassembly and assembly efficiency.

[0010] The included angles between the plum wrench head and the connecting rod, as well as between the connecting rod and the ratchet handle are right angles, ensuring sufficient torque during disassembly and assembly, while leaving sufficient rotation space during disassembly and assembly, reducing damage to the sensor and improving work safety.

[0011] The included angle between the plum wrench head and the connecting rod is a right angle, so that the tool can adapt to the requirements of disassembly and assembly of sensors in different positions, thereby improving the flexibility and practicality of the tool.

[0012] The plum blossom wrench head and the connecting rod form an integral whole and are used in conjunction with the ratchet handle. It is not only convenient to carry and disassemble in normal times, but also saves time and effort when used, reducing the difficulty of operation and labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0014] Figure 1 The utility model is a schematic structural diagram of the connection between the plum blossom wrench head and the connecting rod.

[0015] Figure 2 It is a structural schematic diagram of the ratchet handle of the utility model.

[0016] In the figure: 1. Wrench head, 2. Wire opening, 3. Connecting rod, 4. Handle interface, 5. Ratchet handle. DETAILED DESCRIPTION

[0017] like Figure 1~Figure 2 As shown, a special tool for disassembling and assembling a generator guide bearing temperature sensor comprises a spanner head 1, a connecting rod 3, a handle interface 4 and a ratchet handle 5; one end of the connecting rod 3 is connected to the outer wall of the spanner head 1, and the angle between the connecting rod 3 and the spanner head 1 is a right angle; the handle interface 4 is arranged at the other end of the connecting rod 3, one end of the ratchet handle 5 is movably connected to the handle interface 4, and the angle between the ratchet handle 5 and the connecting rod 3 is a right angle.

[0018] A thread hole 2 is arranged at the edge of the plum wrench head 1 .

[0019] Embodiment 3,

[0020] The connection between the plum wrench head 1 and the connecting rod 3 is equivalent to one wrench, and the ratchet handle is equivalent to another wrench; the two wrenches with different structures can be used separately or in combination with each other.

[0021] During the process of disassembling and installing the temperature sensor, one wrench is used to fix and the other wrench is used to apply torque. The cooperation between them can ensure the adapter without dead angles in all directions, and the operation quality of the temperature sensor in each process of disassembly and installation is guaranteed. It completely solves the problem of uneven tightening or difficult removal of traditional tools due to space limitations, which not only ensures the quality of maintenance but also greatly reduces the difficulty of installation and disassembly during maintenance.

[0022] Embodiment 1,

[0023] When removing the turbine guide bearing temperature sensor, the operator loosens the nut fixing the wire on the top of the temperature sensor to be removed;

[0024] According to the installation position of the sensor, find the best angle for disassembly and assembly to utilize the space, let the wire of the temperature sensor pass through the wire port, and adjust the angle of the plum wrench head through the rotating joint. Put the plum wrench head on the nut that fixes the temperature sensor adapter to fix the adapter and insert the ratchet handle;

[0025] Put on another tool with the same nut model as the temperature sensor in the same way; use the two sets of tools to loosen the sensor fixing nut and then remove it.

[0026] Embodiment 2,

[0027] When installing the turbine guide bearing temperature sensor, install the temperature sensor after the bearing bushing is installed;

[0028] Install the adapter for installing the temperature sensor into the screw hole of the bearing shell, and use a wrench that matches the adapter to put on the nut of the adapter and tighten it;

[0029] Loosen the nut that fixes the temperature sensor wire to allow the sensor wire to rotate in the metal sleeve;

[0030] Install the sensor into the screw hole of the adapter, fix the adapter with a wrench, and tighten the nut of the temperature sensor with another wrench;

[0031] Tighten the nut that secures the wire at the top of the temperature sensor.

[0032] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The embodiments and features in the embodiments of the present application can be arbitrarily combined with each other without conflict. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A special tool for disassembling and assembling a generator guide bearing temperature sensor, characterized by: It comprises a spanner head (1), a connecting rod (3), a handle interface (4) and a ratchet handle (5); one end of the connecting rod (3) is connected to the outer wall of the spanner head (1), and the angle between the connecting rod (3) and the spanner head (1) is a right angle; the handle interface (4) is arranged at the other end of the connecting rod (3), one end of the ratchet handle (5) is movably connected to the handle interface (4), and the angle between the ratchet handle (5) and the connecting rod (3) is a right angle.

2. The special tool for disassembling and assembling the generator guide bearing temperature sensor according to claim 1 is characterized in that: A thread hole (2) is provided at the edge of the plum wrench head (1).

Images