Special special-shaped dismounting tool for TRT generator thrust pad temperature sensor

Abstract

The utility model discloses a special-shaped dismounting tool for a TRT generator thrust pad temperature sensor, and relates to the technical field of blast furnace gas excess pressure turbine power generation (TRT) unit maintenance, the special-shaped dismounting tool comprises a tool body, the tool body comprises a short side section and a long side section, the short side section and the long side section are integrally connected to form a 7-shaped structure, the short side section is used for being held by an operator, and the long side section is used for being held by the operator. A guide groove is formed in the side, away from the short edge section, of the long edge section, the guide groove is communicated with the end, away from the short edge section, of the long edge section and extends in the axial direction of the long edge section, the guide groove is used for allowing an extended thermocouple wire of the temperature measuring element to penetrate through, and a locking groove is formed in the end, away from the short edge section, of the long edge section. The locking groove is used for abutting against a boss of a hollow screw of the temperature measuring element and can drive the hollow screw to rotate, so that the hollow screw is pressed into the temperature measuring groove of the thrust pad and is in threaded connection with the mounting hole, the structure is simple, use is convenient, and the working efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of maintenance technology for blast furnace gas residual pressure turbine power generation (TRT) units, and in particular to a special-shaped disassembly and assembly tool for the thrust bearing temperature sensor of a TRT generator. Background Technology

[0002] As a core piece of energy recovery equipment in the metallurgical industry, the thrust bearing temperature monitoring of TRT (blast furnace gas residual pressure turbine) units is crucial to the stability and safety of unit operation. Currently, the thrust bearing temperature sensing element typically uses a Φ1.5mm dual-core armored thermocouple, installed in a groove only 7mm wide, and fixed by a Φ5mm hollow screw and spring pressure. Existing technology faces numerous problems in the installation and removal of this element:

[0003] Inefficiency: Traditional disassembly and assembly methods take up to 4 hours per operation, significantly impacting maintenance progress. When the unit needs to be quickly restored to operation, prolonged maintenance can lead to production stoppages and increase the company's operating costs.

[0004] Component fragility: Because thermocouples use thin, long wires (Φ1.5mm) and spring structures, they are extremely prone to breakage during traditional assembly and disassembly. Moreover, imported temperature sensing elements cost as much as 40,000 yuan each, and frequent component replacements would result in high costs.

[0005] Safety hazards: The narrow operating space makes the tool prone to slipping during use, which may not only damage the internal threads and affect the normal operation of the equipment, but also pose a risk of injury to the operator's fingers, thus threatening the safety of the operator.

[0006] Measurement inaccuracy: Traditional disassembly and assembly methods cannot guarantee the secure installation of components, and springs may also be damaged during disassembly and assembly, resulting in distorted temperature monitoring data and failure to provide accurate parameters for the operation of the unit.

[0007] Therefore, there is an urgent need for a dedicated tool and operating method that can effectively solve the above problems. Utility Model Content

[0008] The purpose of this invention is to provide a special-shaped disassembly and assembly tool for the temperature sensor of the thrust bearing of a TRT generator, so as to solve the problems existing in the prior art. It has a simple structure, is easy to use, and effectively improves work efficiency.

[0009] To achieve the above objectives, this utility model provides the following solution:

[0010] This utility model provides a special-shaped disassembly and assembly tool for a TRT generator thrust bearing temperature sensor, comprising: a tool body, the tool body including a short side section and a long side section, the short side section and the long side section being integrally connected to form a 7-shaped structure, the short side section being for the operator to hold, the long side section having a guide groove on the side away from the short side section, the guide groove being connected to the end of the long side section away from the short side section and extending along the axial direction of the long side section, the guide groove being for the extension wire of the temperature sensing element to pass through, the long side section having a locking groove on the end away from the short side section, the locking groove being for abutting against the boss of the hollow screw of the temperature sensing element and being able to drive the hollow screw to rotate, so as to press the hollow screw into the temperature sensing groove of the thrust bearing and connect it to the mounting hole threadedly.

[0011] Preferably, the locking groove has a U-shaped structure.

[0012] Preferably, the opening width of the locking groove is 3±0.05mm and the depth is 5±0.1mm, and the two side walls of the locking groove form a right angle of 90±0.5° with the bottom surface.

[0013] Preferably, the guide groove extends through both sides of the long side segment.

[0014] Preferably, the short side segment is provided with anti-slip texture.

[0015] Preferably, the tool body is a stainless steel tube.

[0016] Preferably, the diameter of the tool body is 5±0.05mm and the length is 10±1cm.

[0017] The present invention achieves the following technical advantages over the prior art:

[0018] This invention provides a specialized, irregularly shaped tool for disassembling and assembling temperature sensors for TRT generator thrust bearings. Its 7-shaped design cleverly balances operating torque with spatial adaptability. The short side serves as the grip, facilitating easy tool operation and application of force. The long side, along with its guide groove and locking groove, allows for flexible operation within the confined space of the TRT generator thrust bearing installation, ensuring precise engagement with the temperature sensing element and effectively solving the problem of traditional tools being difficult to operate in such spaces. The guide groove provides a pre-defined channel for the extension wire of the temperature sensing element, ensuring a fixed path during disassembly and assembly, preventing bending or breakage due to tool movement, thus improving the lifespan and reliability of the temperature sensing element. The locking groove precisely engages with the boss of the hollow screw, preventing relative slippage when the hollow screw is rotated. This allows the tool to more effectively adjust the hollow screw, accurately pressing it into the temperature sensing groove of the thrust bearing and completing the threaded connection, ensuring the stability and accuracy of the temperature sensing element installation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a structural schematic diagram of the special-shaped disassembly and assembly tool for the TRT generator thrust bearing temperature sensor provided by this utility model;

[0021] Figure 2 A front view of the special-shaped disassembly and assembly tool for the TRT generator thrust bearing temperature sensor provided by this utility model;

[0022] Figure 3 A schematic diagram of the structure of the special irregular-shaped disassembly and assembly tool for the TRT generator thrust bearing temperature sensor provided by this utility model when in use;

[0023] Figure 4 This is a schematic diagram of the structure of a temperature sensing element in the prior art;

[0024] In the diagram: 1. Short side section; 2. Long side section; 3. Guide groove; 4. Locking groove; 5. Anti-slip texture; 6. Hollow screw boss; 7. Spring; 9. Mounting hole; 10. Extension wire. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] The purpose of this invention is to provide a special-shaped disassembly and assembly tool for the temperature sensor of the thrust bearing of a TRT generator, so as to solve the problems existing in the prior art. It has a simple structure, is easy to use, and effectively improves work efficiency.

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] This utility model provides a special irregular-shaped disassembly and assembly tool for the temperature sensor of the thrust bearing of a TRT generator, such as... Figures 1-4 As shown, it includes: a tool body, which includes a short side segment 1 and a long side segment 2. The short side segment 1 and the long side segment 2 are integrally connected to form a 7-shaped structure. The short side segment 1 is used for the operator to hold. A guide groove 3 is provided on the side of the long side segment 2 away from the short side segment 1. The guide groove 3 is connected to the end of the long side segment 2 away from the short side segment 1 and extends along the axial direction of the long side segment 2. The guide groove 3 is used for the extension wire 10 of the temperature sensing element to pass through. A locking groove 4 is provided on the end of the long side segment 2 away from the short side segment 1. The locking groove 4 is used to abut against the boss of the hollow screw of the temperature sensing element and can drive the hollow screw to rotate so as to press the hollow screw into the temperature sensing groove of the thrust bearing and connect it with the mounting hole 9 by thread. The design of the 7-shaped structure cleverly takes into account both operating torque and spatial adaptability. The short side section 1 serves as a grip, facilitating force application and making tool operation easier. The long side section 2, along with its guide groove 3 and locking groove 4, allows for flexible operation within the confined space of the TRT generator thrust bearing, achieving precise engagement with the temperature sensing element and effectively solving the problem of traditional tools being difficult to operate in such a space. The guide groove 3 provides a pre-defined channel for the extension wire 10 of the temperature sensing element, ensuring a fixed path for the wire during installation and removal, preventing bending or breakage due to tool movement, and improving the lifespan and reliability of the temperature sensing element. The locking groove 4 precisely abuts against the boss of the hollow screw, preventing relative slippage when the hollow screw is rotated. This allows the tool to more effectively adjust the hollow screw, accurately pressing it into the temperature sensing groove of the thrust bearing and completing the threaded connection, ensuring the stability and accuracy of the temperature sensing element installation.

[0029] In a preferred embodiment, the locking groove 4 has a U-shaped structure. The U-shaped locking groove 4 can better accommodate the boss of the hollow screw, and has better compatibility with the boss. Compared with other shapes, the U-shaped groove can contact the boss from multiple directions and apply force. During the rotation of the hollow screw, it can transmit torque more stably, ensuring the smoothness of the hollow screw rotation and installation process, and reducing installation deviations caused by uneven force.

[0030] In a preferred embodiment, the locking groove 4 has an opening width of 3±0.05mm and a depth of 5±0.1mm. The two side walls of the locking groove 4 form a 90±0.5° right angle with the bottom surface. This precise dimensional tolerance ensures a high-precision fit between the locking groove 4 and the hollow screw boss 6 of the temperature sensing element. The dimensional control of the opening width of 3±0.05mm and the depth of 5±0.1mm allows for a tight fit with a boss of a specific size, ensuring that there will be no loosening or excessive gaps during the contact process, thus enhancing the stability of the connection. The 90±0.5° right angle design makes the force distributed more evenly when the locking groove 4 and the boss are in contact, effectively avoiding excessive local stress caused by angular deviations, further improving the stability and reliability of the tool during operation, and ensuring that the hollow screw can be installed accurately as expected.

[0031] In a preferred embodiment, the guide groove 3 extends through both sides of the long side segment 2, allowing the coupling wire to enter the guide groove 3 from either side, increasing flexibility during use. In actual operation, due to limitations of the site environment and installation location, this double-sided through-hole design allows operators to more easily place the coupling wire into the guide groove 3 without repeatedly adjusting the tool position to align the coupling wire, thus improving operational efficiency.

[0032] In a preferred embodiment, the short side segment 1 is provided with anti-slip texture 5, which greatly increases the friction between the operator's hand and the short side segment 1. During disassembly and assembly operations, especially when forcefully rotating the tool, it can prevent the tool from slipping in the hand, ensuring a more secure and stable grip on the tool, reducing the safety risk caused by the tool slipping, and also improving the controllability of the operation process, enabling each operation step to be completed more accurately and stably.

[0033] In a preferred embodiment, the tool body is made of stainless steel tubing. Stainless steel has excellent corrosion resistance, allowing the tool to be used for extended periods without corrosion in the complex working environment of the TRT generator. The TRT generator operates in an environment containing corrosive media such as blast furnace gas. If the tool is easily corroded, it will not only affect its service life, but the corrosion products may also adversely affect the normal operation of the generator. Simultaneously, the stainless steel tubing has good strength and toughness, capable of withstanding the various forces applied during assembly and disassembly, ensuring that the tool will not easily deform or be damaged during use, extending its service life and reducing the cost and time associated with frequent tool replacements.

[0034] In a preferred embodiment, the tool body has a diameter of 5±0.05mm and a length of 10±1cm. This specific diameter of 5±0.05mm and length of 10±1cm was determined after fully considering the actual installation space and operational requirements of the TRT generator thrust bearing. This diameter ensures the tool body has sufficient strength and rigidity to support the forces applied during operation, while also preventing it from being too large to operate in confined spaces. The 10±1cm length ensures comfort and convenience for the operator during grip and operation, while also making the overall structure of the tool more compact and rational, suitable for optimal performance in specific working scenarios, and ensuring smooth and accurate operation throughout the entire process of assembling and disassembling the measuring element.

[0035] This specialized, irregularly shaped tool is used for installing and removing the temperature sensor of the TRT generator thrust bearing. The following details its usage:

[0036] Installation and usage instructions

[0037] Preparation: Before installing the temperature sensing element, first ensure the tool body is in good condition, especially that the guide groove 3 and locking groove 4 are undamaged or blocked by foreign objects. Also, confirm that all components of the temperature sensing element to be installed are intact and functioning properly.

[0038] Pre-positioning operation: Align the guide groove 3 of the special special-shaped disassembly and assembly tool with the extension wire 10 of the temperature sensing element, and carefully insert the wire into the guide groove 3. Since the guide groove 3 extends axially along the long side segment 2 and is connected to one end of the long side segment 2, this process can ensure that the wire enters the guide groove 3 smoothly and accurately, avoiding bending of the wire during the operation, and providing a stable foundation for subsequent installation operations.

[0039] Locking and fitting steps: Accurately align the locking groove 4 at the end of the long side section 2 of the tool with the boss of the hollow screw of the temperature sensing element, and then slowly apply axial pressure. This pressure causes the locking groove 4 to abut tightly against the boss. Due to the precise design of the opening width, depth, and angle formed with the bottom surface of the locking groove 4, a precise and stable fit between the two is ensured. Once the two are properly fitted, a reliable connection is established, providing reliable support for the next step of rotating the tool to install the hollow screw.

[0040] Rotation and tightening process: The operator holds the short side 1 of the tool. The anti-slip texture 5 on the short side 1 provides good friction for a stable grip. Then, the operator rotates the tool clockwise at a constant speed. During this process, due to the tight connection between the locking groove 4 and the hollow screw boss 6, the rotation of the tool drives the hollow screw to rotate as well. Through the threaded engagement between the hollow screw and the mounting hole 9 in the temperature measuring groove of the thrust pad, the hollow screw is gradually pressed into the temperature measuring groove of the thrust pad until the predetermined installation depth is reached, completing the installation of the temperature measuring element.

[0041] Disassembly and usage instructions

[0042] Initial Operation: When disassembling the temperature sensing element, first hold the short side 1 of the tool. The anti-slip texture 5 prevents your hand from slipping, ensuring operational stability. Align the locking groove 4 of the tool with the boss of the hollow screw, ensuring a secure connection.

[0043] Loosening the screw action: Rotate the tool counterclockwise at a constant speed. Due to the connection established during previous installation, this rotation will cause the hollow screw to rotate counterclockwise synchronously. As it rotates, the connection between the hollow screw and the internal thread of the temperature measuring groove of the thrust bearing gradually loosens.

[0044] Component removal procedure: Continuously rotate the tool. After a period of time, the hollow screw will completely separate from the internal thread of the temperature sensing groove of the thrust bearing. At this point, using the elastic force of the internal spring 7 of the temperature sensing element, the temperature sensing element will automatically pop out from its installation position, completing the disassembly process. The operator only needs to carefully handle the removed component, ensuring that the component is not damaged.

[0045] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A special-shaped disassembly and assembly tool for a TRT generator thrust bearing temperature sensor, characterized in that: include: The tool body includes a short side section and a long side section, which are integrally connected to form a figure-7 shape. The short side section is for the operator to hold. A guide groove is provided on the side of the long side section away from the short side section. The guide groove is connected to the end of the long side section away from the short side section and extends along the axial direction of the long side section. The guide groove is for the extension wire of the temperature sensing element to pass through. A locking groove is provided on the end of the long side section away from the short side section. The locking groove is used to abut against the boss of the hollow screw of the temperature sensing element and can drive the hollow screw to rotate, so as to press the hollow screw into the temperature sensing groove of the thrust bearing and connect it with the mounting hole threadedly.

2. The special-shaped disassembly and assembly tool for the thrust bearing temperature sensor of a TRT generator according to claim 1, characterized in that: The locking groove has a U-shaped structure.

3. The special irregular-shaped disassembly and assembly tool for the TRT generator thrust bearing temperature sensor according to claim 2, characterized in that: The locking groove has an opening width of 3±0.05mm and a depth of 5±0.1mm, and the two side walls of the locking groove form a right angle of 90±0.5° with the bottom surface.

4. The special-shaped disassembly and assembly tool for the TRT generator thrust bearing temperature sensor as described in claim 3, characterized in that: The guide groove runs through both sides of the long side segment.

5. The special-shaped disassembly and assembly tool for the TRT generator thrust bearing temperature sensor according to claim 4, characterized in that: The short side section is provided with anti-slip texture.

6. The special-shaped disassembly and assembly tool for the TRT generator thrust bearing temperature sensor according to claim 5, characterized in that: The tool body is made of stainless steel tubing.

7. The special-shaped disassembly and assembly tool for the TRT generator thrust bearing temperature sensor according to claim 1, characterized in that: The tool body has a diameter of 5±0.05mm and a length of 10±1cm.

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