A tool for quickly dismounting a motor coupling of a layer cooling roller bed

Abstract

The utility model discloses a kind of tools of quick disassembly layer cold roller way motor handle, belong to roller way motor technical field, including rectangular structure's metal base plate and metal work plate;Wherein: two rows of bolt holes are respectively set on the metal base plate and metal work plate, the number of each row bolt hole is at least two;The metal base plate and metal work plate are mutually parallel, are connected by M bolt between two, the number of M is equal to the number of bolt hole on metal base plate, U-shaped gap of clamping motor bearing is set on the any side wall of the metal work plate;The width of the U-shaped gap is greater than the diameter of motor bearing and less than the outer diameter of handle. By adopting the above technical scheme, the utility model can realize quick, safely disassembling roller way motor, while reducing working intensity, shortening overhaul time.

Description

Technical Field

[0001] This utility model belongs to the field of roller conveyor motor technology, and in particular relates to a tool for quickly disassembling the connection of a laminar flow cooling roller conveyor motor. Background Technology

[0002] In the production process of the 1750mm hot rolling mill, the laminar cooling zone undoubtedly plays a crucial role, and the roller conveyor motor is an indispensable core component of the laminar cooling zone. Its performance directly affects the stable operation of the entire production line and the quality of the products.

[0003] The primary function of the laminar cooling zone is to rapidly cool the strip rolled by the finishing mill from a final rolling temperature of approximately 900 degrees Celsius to approximately 600 degrees Celsius within a short distance of 100 meters and about 20 seconds. This allows the coiler to smoothly wind the strip into coils, facilitating subsequent storage and transportation. To improve control precision and reduce the impact of adverse factors such as scratches caused by friction between the strip's lower surface and the rollers due to speed mismatch, the production line typically employs a step-by-step variable frequency speed control function. This ensures a perfect match between the roller speed and the strip speed, effectively reducing quality issues and further improving product quality. Therefore, each roller in the laminar cooling zone needs to be individually controlled, meaning each roller is driven by an independent motor.

[0004] In addition, since the cooling zone generally uses water cooling, the area is surrounded by water vapor generated after the strip is cooled, making the environment relatively humid. Therefore, the roller conveyor motor in this area needs to be disassembled and reassembled frequently to carry out necessary waterproofing and anti-corrosion treatment to ensure the normal operation and service life of the motor.

[0005] Within the approximately 100-meter-long chilled zone, there are about 235 roller conveyor motors, which frequently require disassembly and maintenance. The connectors used to connect the motors to the roller conveyor shafts, fixed to the motor side and installed via keyways, are prone to jamming due to prolonged exposure to high temperatures and humidity, making disassembly extremely difficult. Disassembling a single connector can take anywhere from ten to several tens of minutes, significantly increasing the workload for operators, greatly extending the operation time, severely impacting maintenance efficiency, and hindering the normal operation of the production line.

[0006] To effectively solve this production bottleneck, a tool is of great significance for enabling the rapid and safe disassembly of the cooling roller conveyor motor, reducing workload, and shortening maintenance time. Utility Model Content

[0007] The purpose of this utility model is to provide a tool for quickly disassembling the motor of the cooling roller conveyor, which can realize the quick and safe disassembly of the roller conveyor motor, reduce the workload and shorten the maintenance time.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A tool for quickly disassembling a motor connector for a cold roller conveyor includes a rectangular metal base plate and a metal working plate; wherein: two rows of bolt holes are respectively formed on the metal base plate and the metal working plate, with at least two bolt holes in each row; the metal base plate and the metal working plate are parallel to each other and connected by M bolts, where M is equal to the number of bolt holes on the metal base plate; a U-shaped notch for engaging a motor bearing is formed on either side wall of the metal working plate; the width of the U-shaped notch is greater than the diameter of the motor bearing and smaller than the outer diameter of the connector.

[0010] Preferably, the metal base plate and the metal working plate are made of steel plates with a thickness greater than 18 mm.

[0011] Preferably, the thickness of the metal base plate and the metal working plate is 20mm.

[0012] Preferably, the metal base plate has a size of 250mm*250mm.

[0013] Preferably, the metal working plate has a size of 350mm*350mm.

[0014] Preferably, the motor for the cold roller conveyor is a YGP132L3-4 variable frequency speed-regulating three-phase asynchronous motor for roller conveyors.

[0015] Preferably, the diameter of the bolt hole is 125mm.

[0016] Preferably, the distance from the center of the bolt hole to the bottom edge of the metal working plate is 122.5 mm.

[0017] Preferably, the bolt has a thread length of 460 mm.

[0018] Preferably, M=2.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] In the process of using this invention, the metal base plate and the metal working plate must first be securely connected with bolts to ensure a tight fit. Next, the working position (U-shaped notch) of the metal working plate is precisely engaged with the neck of the motor bearing connector, securing it firmly. Then, the bottom of the jack body is placed smoothly against the metal base plate, while the top firmly presses against the motor bearing. After preparation, the operator only needs to gently press the top of the jack to easily remove the motor connector through the conduction action of the metal working plate. Compared to traditional disassembly techniques, this invention significantly improves the efficiency of disassembling roller conveyor motors, enabling fast and safe operation, effectively reducing the labor intensity of workers, and greatly shortening equipment maintenance time, thereby improving overall work efficiency. Attached Figure Description

[0021] Figure 1 This is an overall structural diagram of a preferred embodiment of the present utility model;

[0022] Figure 2 This is a usage state diagram of a preferred embodiment of the present utility model;

[0023] Figure 3 This is a front view of the metal working plate in a preferred embodiment of the present invention;

[0024] Figure 4 This is a BB cross-sectional view of the metal working plate in a preferred embodiment of the present invention.

[0025] In the diagram: 1. Metal base plate; 2. Metal working plate; 3. Bolt rod; 4. Jack body; 5. Nut; 6. Jack top; 7. Key; 8. Motor connector; 9. Motor bearing; 10. Motor. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0027] like Figures 1-4 As shown:

[0028] A tool for quickly disassembling a motor connector on a cold roller conveyor mainly includes a rectangular metal base plate 1 and a similarly rectangular metal working plate 2. Specifically, two rows of evenly spaced bolt holes are designed and formed on both metal plates, namely the base plate and the working plate. Notably, each row has at least two bolt holes to ensure the stability and firmness of the connection. Furthermore, the base plate and the working plate are spatially parallel to each other, and the connection between them is achieved using M bolts, each consisting of a bolt shank 3 and a nut 5. The specific number of M bolts corresponds exactly to the number of bolt holes on the base plate, ensuring that each bolt hole is effectively utilized. Further, a U-shaped notch for engaging a motor bearing 9 is specially formed on one side wall of the working plate. The design dimensions of this U-shaped notch are precisely calculated; its width is set to be greater than the diameter of the motor bearing to ensure smooth engagement, while the width is less than the outer diameter of the connector to prevent interference between the connector and the notch, thus ensuring optimal installation and use of the entire structure.

[0029] Working Principle: When disassembling the motor connector of the laminar flow cooling roller conveyor, the first step is to securely and tightly connect the metal base plate and the metal working plate with bolts, ensuring there is no looseness and forming a solid overall structure. Next, the specially designed working position on the metal working plate, the U-shaped notch, needs to be precisely and meticulously inserted into the neck of the motor connector 8 of the motor 10, ensuring it is firmly fixed in the predetermined position and will not shift during subsequent operations. Then, the bottom of the jack body 4 is placed stably and firmly against the metal base plate to ensure stability, while the top of the jack 6 is firmly pressed against the lower key 7 of the motor bearing, forming an effective force application point.

[0030] After all the above preparations are completed, the operator only needs to gently and steadily press the control device at the top of the jack. Through the conduction of the metal working plate, the powerful thrust generated at the top of the jack is transmitted to key 7, thus easily and smoothly removing the motor connector from the bearing. Compared to traditional manual disassembly techniques, this device significantly improves the efficiency and precision of disassembling the roller conveyor motor through the above operation, achieving a fast and safe operating procedure. This not only effectively reduces the labor intensity required by workers during the disassembly process and reduces physical exertion, but also significantly shortens the equipment inspection and maintenance time, thereby significantly improving overall work efficiency, optimizing the production process, and bringing more significant economic benefits and technological advantages.

[0031] Based on the above preferred embodiments, in order to better understand the technical concept of this application, the following non-limiting description is provided:

[0032] This utility model addresses the challenge of efficiently and quickly disassembling a large number of motors during maintenance operations, a problem that every equipment maintenance worker urgently needs to solve. To this end, the structure of the disassembled motors and connectors was analyzed, and after several improvements, a final design was developed.

[0033] Both the metal base plate and the metal work plate are meticulously crafted from high-quality steel plates with a thickness exceeding 18 mm. After numerous rigorous tests and continuous improvements, a 20 mm thick premium steel plate was ultimately selected as the core material for manufacturing this disassembly tool. In the specific manufacturing process, a sturdy metal base plate measuring 250 mm by 250 mm was first constructed to ensure sufficient stability and load-bearing capacity. Next, a 350 mm by 350 mm metal work plate was fabricated to accommodate a larger working area. Furthermore, four sturdy long bolts, each 460 mm long and 25 mm in diameter, were used to connect and secure the various components, ensuring the overall structural stability and durability.

[0034] In the structural design, the metal base plate has a relatively simple function: to bear and distribute the pressure from the top of the jack. Therefore, its manufacturing process is relatively simple. Specifically, for installation and fixation, the metal base plate only needs to be drilled at the four corners to install the bolts, ensuring overall stability and robustness. In contrast, the design of the metal working plate is more complex. It requires precise drilling based on the specific dimensions of the motor and the connector to ensure smooth installation and normal operation of the motor and connector. Furthermore, to securely connect the metal base plate and the metal working plate into a single unit, the two plates are tightly connected using long bolts. This connection method not only ensures structural stability but also facilitates subsequent maintenance and adjustments.

[0035] Using the aforementioned efficient and convenient tools, maintenance personnel have significantly reduced the time required to replace motor connectors. Previously, when disassembling a motor connector, maintenance personnel often spent tens of minutes or even longer on tedious operations, which was not only time-consuming and labor-intensive but could also affect the overall maintenance progress. However, with this tool, disassembly has become exceptionally quick, taking only a few minutes to complete smoothly, thus significantly improving work efficiency by several times or even dozens of times.

[0036] This tool is extremely simple and easy to make. It does not require complex processes or high-end precision equipment; it can be easily made using only some common processing tools and basic materials.

[0037] The bolt length should be matched to the height of the top of the small jack actually available on site, ensuring a proper fit for installation and operation. The U-shaped notch design on the work plate should be based on the actual dimensions of the motor bearing and the connector on site, ensuring its size is larger than the bearing diameter to allow for smooth passage, while being smaller than the outer diameter of the connector to prevent jamming or installation failure. The motor used in this application is a YGP132L3-4 model variable frequency speed control three-phase asynchronous motor for roller conveyors manufactured by Tianjin Shenchuan Electric Co., Ltd. Therefore, the bolt hole size is set to a diameter of 125 mm, the center distance of the bolt hole from the bottom edge of the work plate is 122.5 mm, and the bolt length is 460 mm.

[0038] In practical implementation, the dimensions can be adjusted to suit different on-site environments and specific needs, ensuring adaptability to various operating scenarios and improving the equipment's versatility and flexibility. This flexible adjustment approach better meets the installation and usage requirements under different working conditions, ensuring stable operation and efficient work.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tool for quickly disassembling the motor connector of a layer-cooling roller conveyor, characterized in that, The device includes a rectangular metal base plate and a metal working plate; wherein: two rows of bolt holes are respectively opened on the metal base plate and the metal working plate, and the number of bolt holes in each row is at least two; the metal base plate and the metal working plate are parallel to each other and are connected by M bolts, where M is equal to the number of bolt holes on the metal base plate; a U-shaped notch for engaging a motor bearing is opened on either side wall of the metal working plate; the width of the U-shaped notch is greater than the diameter of the motor bearing and less than the outer diameter of the connector.

2. The tool for quickly disassembling the motor connector of the layer cooling roller conveyor according to claim 1, characterized in that, The metal base plate and the metal working plate are made of steel plates with a thickness greater than 18mm.

3. The tool for quickly disassembling the motor connector of the layer cooling roller conveyor according to claim 1, characterized in that, The thickness of the metal base plate and the metal working plate is 20mm.

4. The tool for quickly disassembling the motor connector of the layer cooling roller conveyor according to claim 1, characterized in that, The dimensions of the metal base plate are 250mm*250mm.

5. The tool for quickly disassembling the motor connector of the layer cooling roller conveyor according to claim 1, characterized in that, The dimensions of the metal working plate are 350mm*350mm.

6. The tool for quickly disassembling the motor connector of the layer cooling roller conveyor according to claim 1, characterized in that, The motor for the cold roller conveyor is a YGP132L3-4 variable frequency speed-regulating three-phase asynchronous motor for roller conveyors.

7. The tool for quickly disassembling the motor connector of the layer cooling roller conveyor according to claim 6, characterized in that, The diameter of the bolt hole is 125mm.

8. The tool for quickly disassembling the motor connector of the layer cooling roller conveyor according to claim 6, characterized in that, The distance from the center of the bolt hole to the bottom edge of the metal work plate is 122.5 mm.

9. The tool for quickly disassembling the motor connector of the layer cooling roller conveyor according to claim 6, characterized in that, The bolt has a thread length of 460 mm.

10. The tool for quickly disassembling the motor connector of the layer cooling roller conveyor according to claim 1, characterized in that, M＝2。

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