A pair of wheels of an ethylene cracking furnace blower

Abstract

The utility model relates to the field of cracking furnace, concretely relates to provide an ethylene cracking furnace fan pair wheel puller, including pull -out disc, pull -out thread rod and fixed establishment, pull -out disc includes air hole, thread hole and pinhole, air hole is used for preventing after fan pair wheel dismounts, pull -out disc with fan pair wheel cannot separate, thread hole is used for the connection of pull -out thread rod, thread hole is located in the center of pull -out disc, ensure when through pull -out thread rod to fan pair wheel is disassembled axial force will not be offset, fixed establishment includes first fixed disc and second fixed disc, and the first fixed disc and second fixed disc are equipped with the positioning pin, and the positioning pin passes through the through -hole on fan pair wheel and comes out from the pinhole in pull -out disc, and the part of positioning pin comes out pinhole is opened in the limiting slot, and the limiting slot is rotatably connected with the limiting block, through the setting of limiting block and limiting slot, pull -out disc with fan pair wheel synchronous movement. Through above -mentioned mechanism, can reduce the dismounting time of fan pair wheel.

Description

Technical Field

[0001] This utility model relates to the field of cracking furnaces, specifically to a fan puller for an ethylene cracking furnace. Background Technology

[0002] As a key piece of equipment in the ethylene production process, the cracking furnace blower plays a crucial role in providing the necessary oxygen to sustain the chemical reaction. During ethylene cracking, the blower wheel, as a critical component connecting the drive unit and the blower, directly impacts the overall operating efficiency and safety of the cracking furnace. However, traditional blower wheel disassembly methods have several shortcomings, such as low disassembly efficiency, complex operation, and potential damage to the equipment. These problems not only increase maintenance time and costs but may also affect production efficiency and product quality. With the rapid development of the ethylene industry, the requirements for the operating efficiency and maintenance of cracking furnace blowers are becoming increasingly stringent. Therefore, a device capable of quickly, efficiently, and safely disassembling the blower wheel is needed to meet the demands of short-stop maintenance, reduce downtime, and improve maintenance quality. This necessitates improvements and innovations to existing cracking furnace blower wheel disassembly technologies to meet the demands of modern industrial production for high efficiency and high reliability. Against this backdrop, a novel ethylene cracking furnace blower wheel puller has been developed to address the shortcomings of existing technologies and provide a more efficient and safer disassembly solution. Utility Model Content

[0003] To address the aforementioned problems, an ethylene cracking furnace blower wheel puller is provided, comprising a puller disc, a puller threaded rod, and a fixing mechanism. The puller disc includes a vent hole, a threaded hole, and a pin hole. The vent hole prevents the puller disc from being unable to separate from the blower wheel after disassembly. The threaded hole is used for connecting the puller threaded rod and is located at the center of the puller disc to ensure that the axial force does not shift when disassembling the blower wheel by pulling the threaded rod. The fixing mechanism includes a first fixing disc and a second fixing disc. The first and second fixing discs are provided with positioning pins. The positioning pins pass through a through hole on the blower wheel and exit through a pin hole in the puller disc. A limit groove is formed on the part of the positioning pin that protrudes from the pin hole. A limit block is rotatably connected in the limit groove. Through the setting of the limit block and the limit groove, the puller disc moves synchronously with the blower wheel.

[0004] Preferably, the first fixed disc is provided with a fastening block and the second fixed disc is provided with a fastening groove. Through the cooperation of the fastening block and the fastening groove, the first fixed disc and the second fixed disc will not collide during the disassembly of the fan wheel.

[0005] Preferably, the limiting block has a notch. When it is no longer necessary to fix the drawing disc to the fan wheel, the limiting block is rotated until the notch of the limiting block corresponds to the position of the limiting groove. At this time, the positioning pin can be pulled out from the pin hole, thereby separating the drawing disc from the fan wheel.

[0006] Preferably, the drawing disc is provided with a rotating groove, a rotating block is rotatably connected in the rotating groove, a rotating rod is fixedly connected to the rotating block, and the rotating rod is fixedly connected to the limiting block.

[0007] Preferably, a holding disc is fixedly connected to the end of the pull threaded rod away from the pull disc.

[0008] Preferably, the limiting block is provided with a grip handle.

[0009] The advantages of this utility model compared to the prior art are:

[0010] 1. This utility model effectively avoids the problem of the drawing disc sticking to the fan roller after disassembly by designing a vent hole on the drawing disc, ensuring a smooth disassembly process. The center positioning of the threaded hole ensures the accurate transmission of axial force during the drawing process, avoiding disassembly failure or equipment damage caused by force deviation, thus improving the efficiency and safety of disassembly.

[0011] 2. The fixing mechanism design of this utility model, through the cooperation of the fastening block on the first fixing disc and the fastening groove on the second fixing disc, forms a locking mechanism, preventing collisions and misalignments between the fixing discs and enhancing the stability of the puller during disassembly. This design significantly improves operational accuracy and reduces the risk of equipment damage due to improper operation.

[0012] 3. The notch design on the limiting block of this utility model provides a simple separation mechanism. After the wind turbine coupling is disassembled, the limiting block is rotated so that the notch aligns with the limiting groove, allowing the locating pin to be pulled out of the pin hole, thus achieving rapid separation of the pull-out disc from the wind turbine coupling. This design significantly simplifies the separation steps after disassembly and improves the efficiency of the entire maintenance work. At the same time, the handle further facilitates the operator's rotation of the limiting block, enhancing the user experience. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of a blower puller for an ethylene cracking furnace.

[0014] Figure 2 This is an exploded view of a blower puller for an ethylene cracking furnace.

[0015] Figure 3 This is a three-dimensional schematic diagram of the pulling disc of the fan puller of an ethylene cracking furnace when it is fixed.

[0016] Figure 4 This is an exploded view of the fixing and rotating mechanisms of the blower puller of an ethylene cracking furnace.

[0017] Figure 5 A type of ethylene cracking furnace blower wheel puller Figure 4 A magnified view of a portion of point A in the middle.

[0018] Figure 6 A type of ethylene cracking furnace blower wheel puller Figure 4 A magnified view of a section at point B in the middle.

[0019] The diagram is labeled as follows: 1. Pulling disc; 11. Vent hole; 12. Threaded hole; 13. Pin hole; 2. Pulling threaded rod; 3. Fixing mechanism; 31. First fixed disc; 311. Fastening block; 32. Second fixed disc; 321. Fastening groove; 33. Positioning pin; 34. Limiting block; 341. Notch; 35. Limiting groove; 4. Rotating mechanism; 41. Rotating groove; 42. Rotating block; 43. Rotating rod; 5. Holding disc; 6. Holding handle. Detailed Implementation

[0020] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0021] Reference Figures 1-6 A fan puller for an ethylene cracking furnace includes a puller disc 1, a puller threaded rod 2, and a fixing mechanism 3. The puller disc 1 includes a vent hole 11, a threaded hole 12, and a pin hole 13. The vent hole 11 prevents the puller disc 1 from being unable to separate from the fan puller after disassembly. The threaded hole 12 is used to connect the puller threaded rod 2. The threaded hole 12 is located at the center of the puller disc 1 to ensure that axial force is not generated when disassembling the fan puller through the puller threaded rod 2. The offset mechanism 3 includes a first fixed disc 31 and a second fixed disc 32. The first fixed disc 31 and the second fixed disc 32 are provided with positioning pins 33. The positioning pins 33 pass through the through holes on the fan wheel and out through the pin holes 13 in the drawing disc 1. The part of the positioning pin 33 that passes through the pin holes 13 has a limiting groove 35. A limiting block 34 is rotatably connected in the limiting groove 35. With the setting of the limiting block 34 and the limiting groove 35, the drawing disc 1 moves synchronously with the fan wheel.

[0022] The pyrolysis furnace blower can only be shut down briefly for maintenance. To ensure high-quality and efficient bearing maintenance, the blower coupling needs to be quickly disassembled and inspected. To address this, this invention includes a puller comprising a puller disc 1 with vent holes 11, threaded holes 12, and pin holes 13. The vent holes 11 prevent adhesion between the puller disc 1 and the blower coupling after disassembly, ensuring smooth separation. The threaded holes 12, located at the center of the puller disc 1, connect to the puller threaded rod 2, ensuring direct and unbiased transmission of axial force during disassembly, thus more effectively applying pull force to the blower coupling. The puller also includes a fixing mechanism 3, consisting of a first fixing disc 31 and a second fixing disc 32. Both fixing discs are equipped with positioning pins 33, which pass through holes on the blower coupling and exit through the pin holes 13 of the puller disc 1. The portion of the positioning pin 33 that protrudes from the pin hole 13 is provided with a limiting groove 35, within which a limiting block 34 is rotatably connected. The limiting block 34 and the limiting groove 35 ensure that the drawing disc 1 and the fan roller can move synchronously. That is, during the drawing process, the drawing disc 1 moves along with the fan roller, maintaining a constant relative position between the two. The working principle of the entire drawing device is to apply axial tension by pulling the threaded rod 2, and to ensure the synchronous movement of the drawing disc 1 and the fan roller through the positioning pin 33 and the limiting block 34 of the fixing mechanism 3, thereby achieving the purpose of disassembling the fan roller.

[0023] Reference Figure 4 and Figure 5 The first fixed disc 31 is provided with a fastening block 311, and the second fixed disc 32 is provided with a fastening groove 321. Through the cooperation of the fastening block 311 and the fastening groove 321, the first fixed disc 31 and the second fixed disc 32 will not collide during the disassembly of the fan wheel.

[0024] The first fixed disc 31 and the second fixed disc 32 are components of the puller fixing mechanism 3. The first fixed disc 31 is provided with a fastening block 311, while the second fixed disc 32 is provided with a fastening groove 321. The design of the fastening block 311 and the fastening groove 321 allows them to cooperate to form a locking mechanism. When the puller is used to disassemble the blower rollers, the fastening block 311 is inserted into the fastening groove 321, thus fixing the first fixed disc 31 and the second fixed disc 32 together, preventing relative movement or collision between them. This locking mechanism ensures stability during the pulling process and reduces the risk of potential damage or disassembly failure due to component collision or misalignment. Through the cooperation of the fastening block 311 and the fastening groove 321, the puller fixing mechanism 3 not only improves the efficiency of the disassembly process but also enhances operational safety. This design makes the puller more reliable and efficient when disassembling the blower rollers of an ethylene cracking furnace.

[0025] Reference Figures 1-4 The limiting block 34 is provided with a notch 341. When it is no longer necessary to fix the pulling disc 1 to the fan wheel, the limiting block 34 is rotated until the notch 341 of the limiting block 34 corresponds to the position of the limiting groove 35. At this time, the positioning pin 33 can be pulled out from the pin hole 13, thereby separating the pulling disc 1 from the fan wheel.

[0026] The limiting block 34 has a notch 341. This notch 341 allows the pulling disc 1 to separate from the fan coupling after the puller has completed its disassembly task. The specific working principle is as follows: During the operation of the puller, the positioning pin 33 passes through the through hole of the fan coupling and exits through the pin hole 13 of the pulling disc 1. Simultaneously, the limiting groove 35 on the protruding part of the positioning pin 33 engages with the limiting block 34. Initially, the notch 341 on the limiting block 34 is not aligned with the pin hole 13, thus fixing the positioning pin 33 within the pin hole 13, ensuring synchronous movement of the pulling disc 1 and the fan coupling, achieving stable disassembly. When the fan coupling is successfully disassembled and it is no longer necessary to keep the pulling disc 1 fixed to the fan coupling, the operator can rotate the limiting block 34 to align the notch 341 with the limiting groove 35. Once the notch 341 is aligned, the positioning pin 33 gains a path to be pulled out from the pin hole 13. At this point, the operator can easily pull out the fixing mechanism 3, thereby separating the pulling disc 1 from the fan wheel. This design not only improves the flexibility and ease of operation of the disassembly process, but also ensures the adaptability and reliability of the puller under different working conditions through the cooperation of the notch 341 and the limiting groove 35.

[0027] Reference Figures 4-6 The drawing disc 1 is provided with a rotating groove 41, and a rotating block 42 is rotatably connected in the rotating groove 41. A rotating rod 43 is fixedly connected to the rotating block 42, and the rotating rod 43 is fixedly connected to the limiting block 34.

[0028] A rotating groove 41 is added to the drawing disc 1, which allows the rotating block 42 to rotate freely within it. The rotating block 42 is fixedly connected to the limiting block 34 via a rotating rod 43. When the positioning pin 33 of the fixing mechanism 3 passes through the through hole on the fan wheel and exits, the notch 341 on the limiting block 34 corresponds to the position of the positioning pin 33. The rotating block 42 rotates, and the rotating block 42 drives the limiting block 34 to rotate along the rotating groove 41 via the rotating rod 43, so that the notch 341 on the limiting block 34 is misaligned with the positioning pin 33, thereby making the limiting block 34 engage with the limiting groove 35, thus fixing the drawing disc 1 to the fan wheel via the fixing mechanism 3. After disassembly, the limiting block 34 is rotated again until the notch 341 corresponds to the position of the positioning pin 33, thereby separating the drawing disc 1 from the fan wheel.

[0029] Reference Figures 1-4The end of the threaded rod 2 away from the threaded rod 1 is fixedly connected to a holding disc 5.

[0030] The grip disc 5 is designed to facilitate disassembly by the operator.

[0031] Reference Figures 1-4 The limiting block 34 is provided with a grip handle 6.

[0032] The handle 6 is designed to facilitate the operator's rotation of the limit block 34.

[0033] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A fan puller for an ethylene cracking furnace, characterized in that, The assembly includes a drawing disc (1), a drawing threaded rod (2), and a fixing mechanism (3). The drawing disc (1) includes a vent hole (11), a threaded hole (12), and a pin hole (13). The vent hole (11) is used to prevent the drawing disc (1) from being unable to separate from the fan wheel after disassembly. The threaded hole (12) is used to connect the drawing threaded rod (2). The threaded hole (12) is located at the center of the drawing disc (1) to ensure that the axial force will not shift when the fan wheel is disassembled by drawing the threaded rod (2). The fixing mechanism (3) The device includes a first fixed disc (31) and a second fixed disc (32). The first fixed disc (31) and the second fixed disc (32) are provided with positioning pins (33). The positioning pins (33) pass through the through holes on the fan wheel and exit through the pin holes (13) in the drawing disc (1). The part of the positioning pin (33) that exits through the pin holes (13) has a limiting groove (35). A limiting block (34) is rotatably connected in the limiting groove (35). Through the setting of the limiting block (34) and the limiting groove (35), the drawing disc (1) moves synchronously with the fan wheel.

2. The ethylene cracking furnace blower wheel puller according to claim 1, characterized in that, The first fixed disc (31) is provided with a fastening block (311), and the second fixed disc (32) is provided with a fastening groove (321). Through the cooperation of the fastening block (311) and the fastening groove (321), the first fixed disc (31) and the second fixed disc (32) will not collide during the disassembly of the fan wheel.

3. The ethylene cracking furnace blower wheel puller according to claim 1, characterized in that, The limiting block (34) has a notch (341). When it is no longer necessary to fix the pulling disc (1) to the fan wheel, the limiting block (34) is rotated until the notch (341) of the limiting block (34) corresponds to the position of the limiting groove (35). At this time, the positioning pin (33) can be pulled out from the pin hole (13), thereby separating the pulling disc (1) from the fan wheel.

4. The ethylene cracking furnace blower wheel puller according to claim 3, characterized in that, The drawing disc (1) is provided with a rotating groove (41), a rotating block (42) is rotatably connected in the rotating groove (41), a rotating rod (43) is fixedly connected to the rotating block (42), and the rotating rod (43) is fixedly connected to the limiting block (34).

5. The ethylene cracking furnace blower wheel puller according to claim 1, characterized in that, The end of the threaded rod (2) away from the threaded rod (1) is fixedly connected to a holding disc (5).

6. The ethylene cracking furnace blower wheel puller according to claim 4, characterized in that, The limiting block (34) is provided with a grip handle (6).

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