A sizing machine sizing trough motor drive fixing mechanism

By employing a sleeve mechanism and multiple anti-loosening designs, the problem of unstable sprocket transmission of the sizing trough motor in the sizing machine is solved, achieving efficient and stable power transmission and continuous equipment operation.

CN224531263UActive Publication Date: 2026-07-21SHANDONG WEIQIAO TEXTILE TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG WEIQIAO TEXTILE TECHNOLOGY CO LTD
Filing Date
2025-09-12
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

During the production process of the sizing machine, the sizing tank motor sprocket drive bears a large force, is poorly fixed, wears out severely, and the chain drive vibrates significantly.

Method used

A sleeve mechanism is used to fix the rotating shaft and sprocket. Through precise dimensional matching and reliable connection structure, including multiple anti-loosening designs such as snap-fit ​​strips, keyways, plug-in pins, springs and threaded surfaces, a stable connection of the transmission system is ensured.

Benefits of technology

It effectively prevents axial movement and radial vibration, reduces equipment operation risks, ensures efficient power transmission, maintains the stability and continuity of sizing machine operation, and reduces the probability of transmission system failure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sizing machine sizing groove motor drive fixing mechanism, it includes motor and sprocket, the sprocket is set in the front of motor output end, the output of motor is installed with the rotating shaft, the surface of rotating shaft is provided with the clamping groove, the middle end of sprocket rear is provided with the clamping cylinder, the rear of clamping cylinder is fixedly installed with rectangular strip, the rear of rectangular strip is fixedly installed with the clamping strip, rectangular strip with clamping strip installs in clamping groove, the surface of rotating shaft is installed with sleeve mechanism, when using the device, through setting sleeve mechanism, accurate size cooperation and reliable connecting structure can guarantee that the power of motor is high -efficient, no -loss transmission to sprocket, avoids the torque loss caused by the loose connection, maintains the stability and continuity of sizing machine operation, ensures sizing production quality stability.
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Description

Technical Field

[0001] This utility model relates to the field of sizing machine technology, and in particular to a sizing machine trough motor drive fixing mechanism. Background Technology

[0002] A sizing machine is a device used to sizing yarn during the textile process, primarily to improve the yarn's weaveability and abrasion resistance. The sizing machine applies a layer of sizing agent to the yarn, forming a protective film that enhances the yarn's strength and stability, reducing wear and breakage during weaving.

[0003] When the inventor implemented this device, he found the following defects: During the production process of the sizing machine, the tension in the wet zone is controlled by the sizing tank motor. Due to environmental issues, the sizing tank motor sprocket transmission bears a large load, is poorly fixed, wears severely, and the chain transmission vibrates. Utility Model Content

[0004] Based on this, it is necessary to address the above-mentioned technical problems. During the production process of the sizing machine, the tension in the wet zone is controlled by the sizing tank motor. Due to environmental issues, the sizing tank motor sprocket transmission is subjected to high stress, poor fixation, severe wear, and chain drive vibration.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A sizing machine trough motor drive fixing mechanism includes a motor and a sprocket. The sprocket is located in front of the output end of the motor. A rotating shaft is installed at the output end of the motor. A locking groove is formed on the surface of the rotating shaft. A locking cylinder is provided at the middle rear of the sprocket. A rectangular strip is fixedly installed behind the locking cylinder. A locking strip is fixedly installed behind the rectangular strip. The rectangular strip and the locking strip are installed in the locking groove. A sleeve mechanism is installed on the surface of the rotating shaft. The sleeve mechanism includes a first sleeve and a second sleeve. The first sleeve and the second sleeve are fixedly connected. The sleeve mechanism can fix the rotating shaft and the sprocket.

[0006] As a preferred embodiment of the sizing machine trough motor drive fixing mechanism provided by this utility model, the second sleeve is provided with a second inner cavity, which is matched with the outer diameter of the rotating shaft.

[0007] As a preferred embodiment of the sizing machine sizing trough motor drive fixing mechanism provided by this utility model, the first sleeve is provided with a first inner cavity, which is matched with the outer diameter of the snap-fit ​​cylinder.

[0008] As a preferred embodiment of the sizing machine sizing trough motor drive fixing mechanism provided by this utility model, a keyway is provided inside the second inner cavity, and the keyway corresponds to the size of the snap-fit ​​strip.

[0009] In a preferred embodiment of the sizing machine trough motor drive fixing mechanism provided by this utility model, two plug-in posts are symmetrically inserted into the end of the second sleeve near the end of the first sleeve, and the bottom of the plug-in posts is inserted into the keyway.

[0010] In a preferred embodiment of the sizing machine trough motor drive fixing mechanism provided by this utility model, two extension plates are symmetrically installed at the end of the first sleeve near the surface of the second sleeve. The two extension plates correspond to the two insertion posts respectively, and a spring connects the extension plates and the insertion posts.

[0011] In a preferred embodiment of the sizing machine trough motor drive fixing mechanism provided by this utility model, a triangular groove is provided on the surface of the insertion post near the top, and a snap ring is movably provided on the surface of the second sleeve. The end of the snap ring is provided with a pointed ring, which corresponds to the triangular groove.

[0012] In a preferred embodiment of the sizing machine sizing trough motor drive fixing mechanism provided by this utility model, the surface of the second sleeve is provided with a threaded surface, and the inner wall of the snap ring is provided with a threaded groove, the threaded groove cooperating with the threaded surface.

[0013] In a preferred embodiment of the sizing machine trough motor drive fixing mechanism provided by this utility model, the second sleeve has two symmetrical mounting holes at the end away from the first sleeve, and the surface of the rotating shaft has symmetrical mating holes, with the mounting holes corresponding to the mating holes.

[0014] As a preferred embodiment of the sizing machine sizing trough motor drive fixing mechanism provided by this utility model, the end face of the bottom of the plug-in column is provided with an arc.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The first inner cavity of the first sleeve is precisely matched with the outer diameter of the snap-fit ​​sleeve, accurately positioning the axial position of the sprocket and preventing it from shifting on the rotating shaft. The second inner cavity of the second sleeve is tightly fitted with the outer diameter of the rotating shaft, reducing relative sway and ensuring the coaxiality of the transmission system. Even under high-speed operating conditions, it can effectively prevent axial movement and radial vibration, reducing the risk of equipment operation. The mechanical key connection between the snap-fit ​​strip and the keyway and locking groove, as well as the axial limiting of the snap-fit ​​strip by the plug-in post, forms a three-dimensional constraint structure. Combined with the elastic preload of the spring, the wedge locking of the snap-fit ​​ring and the triangular groove, and the fastening of the threaded surface and the threaded groove, the multiple anti-loosening design ensures that each component can maintain a stable connection under high load and strong vibration environment, which greatly reduces the probability of transmission system failure. Precise dimensional matching and reliable connection structure ensure that the motor's power is transmitted to the sprocket efficiently and without loss, avoiding torque loss caused by loose connection, maintaining the stability and continuity of the sizing machine's operation, and ensuring stable sizing production quality. Attached Figure Description

[0016] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model. Figure 2 This is a schematic diagram of the sleeve mechanism of the utility model; Figure 3 This is an internal sectional view of the sleeve mechanism of the utility model.

[0018] The markings in the diagram are explained as follows: 1. Motor; 2. Rotating shaft; 3. Locking groove; 4. Sleeve mechanism; 5. Sprocket; 6. Snap-fit ​​sleeve; 7. Rectangular bar; 8. Snap-fit ​​strip; 9. First sleeve; 10. First inner cavity; 11. Second sleeve; 12. Second inner cavity; 13. Keyway; 14. Extension plate; 15. Spring; 16. Insertion post; 17. Snap-fit ​​ring; 18. Threaded surface; 19. Pointed ring; 20. Triangular groove. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0020] As described in the background art, during the production process of the sizing machine, the wet zone tension is controlled by the sizing tank motor. Due to environmental issues, the sizing tank motor sprocket transmission bears a large load, is poorly fixed, suffers severe wear, and exhibits chain drive vibration.

[0021] To solve this technical problem, this utility model provides a motor drive fixing mechanism for a sizing machine sizing trough, which includes a motor 1 and a sprocket 5. The sprocket 5 is located in front of the output end of the motor 1. A rotating shaft 2 is installed at the output end of the motor 1. A locking groove 3 is opened on the surface of the rotating shaft 2. A locking cylinder 6 is provided at the middle of the rear of the sprocket 5. A rectangular strip 7 is fixedly installed behind the locking cylinder 6. A locking strip 8 is fixedly installed behind the rectangular strip 7. The rectangular strip 7 and the locking strip 8 are installed in the locking groove 3. A sleeve mechanism 4 is installed on the surface of the rotating shaft 2. The sleeve mechanism 4 includes a first sleeve 9 and a second sleeve 11. The first sleeve 9 and the second sleeve 11 are fixedly connected. The rotating shaft 2 and the sprocket 5 can be fixedly connected through the sleeve mechanism 4.

[0022] By setting up the sleeve mechanism 4, the precise size matching and reliable connection structure can ensure that the power of the motor 1 is transmitted to the sprocket 5 efficiently and without loss, avoid torque loss caused by loose connection, maintain the stability and continuity of the sizing machine operation, and ensure stable sizing production quality.

[0023] Example 1 Please refer to Figure 1-3 : The second sleeve 11 has a second inner cavity 12 inside, which is matched with the outer diameter of the rotating shaft 2; The inner diameter of the second inner cavity 12 of the second sleeve 11 is precisely matched with the outer diameter of the rotating shaft 2. During installation, the second sleeve 11 is axially sleeved along the rotating shaft 2, so that the second inner cavity 12 fits tightly with the shaft surface. The size matching design of the second inner cavity 12 and the rotating shaft 2 can reduce the relative shaking between the second sleeve 11 and the rotating shaft 2. Especially when rotating at high speed, it can effectively reduce the vibration amplitude, enhance the stability of the transmission system, and extend the service life of the equipment.

[0024] The first sleeve 9 has a first inner cavity 10 inside, which is matched with the outer diameter of the snap-fit ​​sleeve 6; The inner diameter of the first inner cavity 10 of the first sleeve 9 is precisely matched with the outer diameter of the snap-fit ​​sleeve 6. During installation, the first sleeve 9 is axially sleeved along the rotating shaft 2, so that the first inner cavity 10 is tightly fitted with the outer surface of the snap-fit ​​sleeve 6. The size matching design of the first inner cavity 10 and the snap-fit ​​sleeve 6 enables the first sleeve 9 to accurately position the axial position of the sprocket 5, avoiding the sprocket 5 from shifting due to installation errors. Especially when running at high speed, it can prevent axial movement and ensure the coaxiality of the transmission system.

[0025] The second inner cavity 12 has a keyway 13 inside, and the keyway 13 corresponds to the size of the snap-fit ​​strip 8. The keyway 13 is formed on the inner wall of the second inner cavity 12, and its size is precisely matched with the snap-fit ​​strip 8. When the second sleeve 11 is axially sleeved along the rotating shaft 2, the keyway 13 corresponds to the snap-fit ​​groove 3. Then, when the snap-fit ​​tube 6 is matched with the first inner cavity 10, the snap-fit ​​strip 8 can be embedded in the keyway 13 and the snap-fit ​​groove 3 to form a mechanical connection. When the motor 1 drives the rotating shaft 2 to rotate, under the action of the snap-fit ​​strip 8, the sleeve mechanism 4 and the snap-fit ​​tube 6 will rotate synchronously with the rotating shaft 2 to realize the efficient transmission of power from the motor 1 to the sprocket 5.

[0026] Example 2 Further optimizations to Example 1, specifically, such as... Figure 1-3 As shown: Two insertion posts 16 are symmetrically inserted into the end of the second sleeve 11 near the end of the first sleeve 9, and the bottom of the insertion posts 16 is inserted into the keyway 13. During assembly, the snap-fit ​​strip 8 is first embedded into the combined groove formed by the keyway 13 and the locking groove 3 to complete the initial torque transmission connection between the rotating shaft 2 and the sprocket 5. Subsequently, the two insertion pins 16 of the second sleeve 11 near the end of the first sleeve 9 are inserted axially into the keyway 13 on the inner wall of the second inner cavity 12. The bottom of the insertion pins 16 is tightly attached to the surface of the rectangular strip 7, forming an axial limit for the snap-fit ​​strip 8. This limiting method prevents the snap-fit ​​strip 8 from axially moving within the keyway 13 and the locking groove 3. At the same time, in conjunction with the constraint of the snap-fit ​​sleeve 6 by the first sleeve 9, the entire transmission structure forms a three-dimensional constraint. When the motor 1 drives the rotating shaft 2 to rotate, the snap-fit ​​strip 8 transmits torque through the keyway 13, while the limiting effect of the insertion pins 16 ensures that the snap-fit ​​strip 8 always remains in the correct position, avoiding transmission failure due to loosening, and realizing stable and efficient power transmission from the motor 1 to the sprocket 5.

[0027] Two extension plates 14 are symmetrically installed at the end of the first sleeve 9 near the surface of the second sleeve 11. The two extension plates 14 correspond to the two plug posts 16 respectively, and a spring 15 is connected between the extension plates 14 and the plug posts 16. The extension plate 14 is connected to the plug post 16 by a spring 15. When the snap-fit ​​strip 8 is installed, the plug post 16 is raised and the spring 15 is compressed to make room for the insertion of the snap-fit ​​strip 8. The snap-fit ​​strip 8 can move into the inside of the keyway 13. After the snap-fit ​​strip 8 moves to the deepest part of the keyway 13, the elastic force of the spring 15 will push the plug post 16 downward, so that the bottom of the plug post 16 fits tightly against the surface of the rectangular strip 7.

[0028] A triangular groove 20 is provided on the surface of the plug post 16 near the top end, and a snap ring 17 is movably provided on the surface of the second sleeve 11. A pointed ring 19 is provided at the end of the snap ring 17, and the pointed ring 19 corresponds to the triangular groove 20. During assembly, after the plug-in pin 16 is inserted into the keyway 13 and pressed against the rectangular bar 7 by the spring 15, the snap ring 17 moves along the surface of the second sleeve 11. The pointed ring 19 at the end of the snap ring 17 corresponds to the triangular groove 20 at the top of the plug-in pin 16. As the snap ring 17 moves, the pointed ring 19 gradually embeds into the triangular groove 20. Since the triangular groove 20 is designed with an inclined surface, the pointed ring 19 will generate a component force perpendicular to the groove surface when it is embedded, which will further press down the plug-in pin 16, making it fit more tightly against the rectangular bar 7, and forming a stronger axial limit on the snap ring 8. At the same time, the wedge-shaped fit structure of the triangular groove 20 and the pointed ring 19 restricts the axial movement and circumferential rotation of the plug-in pin 16, preventing it from loosening or falling out due to vibration, impact and other factors during equipment operation, and ensuring the connection of the transmission system is stable.

[0029] The surface of the second sleeve 11 is provided with a threaded surface 18, and the inner wall of the snap ring 17 is provided with a threaded groove, which mates with the threaded surface 18. After inserting the plug 16 into the keyway 13 and pre-tightening the spring 15, the retaining ring 17 is fitted onto the second sleeve 11. Since the threaded surface 18 on the surface of the second sleeve 11 matches the threaded groove on the inner wall of the retaining ring 17, rotating the retaining ring 17 causes it to spirally advance along the threaded surface 18. As the retaining ring 17 rotates, the pointed ring 19 at the end gradually embeds into the triangular groove 20 at the top of the plug 16. The engagement between the threaded surface 18 and the threaded groove provides greater axial tightening force. Even when the sizing machine operates for a long time under high speed and strong vibration conditions, it can effectively prevent the retaining ring 17 from loosening, avoid the plug 16 from losing its limiting function, and significantly reduce the probability of transmission system failure.

[0030] Example 3 Further optimizations to Example 2, such as Figure 1-3 As shown: The second sleeve 11 has two symmetrical mounting holes at the end away from the first sleeve 9, and the surface of the rotating shaft 2 has symmetrical mating holes, with the mounting holes corresponding to the mating holes. During assembly, the second sleeve 11 is fitted onto the rotating shaft 2, ensuring that the two mounting holes at the end of the second sleeve 11 away from the first sleeve 9 are precisely aligned with the corresponding mating holes on the surface of the rotating shaft 2. Subsequently, the second sleeve 11 is fixed to the rotating shaft 2 by inserting bolts through the mounting holes and mating holes. This connection method not only forms a circumferential constraint with the keyway 13 and the snap-fit ​​strip 8, but also further strengthens the connection between the two radially, restricting the radial movement and circumferential rotation of the second sleeve 11 on the rotating shaft 2. When the motor 1 drives the rotating shaft 2 to operate, the connection structure of the mounting holes and mating holes can assist in transmitting torque and ensure that the second sleeve 11 and the rotating shaft 2 rotate stably and synchronously, thus coordinating to ensure the efficient transmission of power to the sprocket 5.

[0031] The bottom end face of the plug post 16 is provided with an arc; When installing the snap-fit ​​strip 8, the snap-fit ​​strip 8 is inserted along the channel formed by the keyway 13 and the locking groove 3. Its end will contact and squeeze the arc end face at the bottom of the plug post 16. Due to the smooth transition of the arc surface, the snap-fit ​​strip 8 will push the plug post 16 to move upward against the elastic force of the spring 15, making room for the insertion of the snap-fit ​​strip 8, so that the snap-fit ​​strip 8 can smoothly reach the depth of the keyway 13.

[0032] The usage process of the sizing machine sizing trough motor drive fixing mechanism provided by this utility model is as follows: First, the first sleeve 9 is axially fitted along the rotating shaft 2. Its inner first cavity 10 precisely matches the outer diameter of the locking sleeve 6. After a tight fit, the first sleeve 9, by constraining the locking sleeve 6, initially positions the axial position of the sprocket 5, preventing it from shifting on the rotating shaft 2. The second sleeve 11 is then axially fitted along the rotating shaft 2. Its inner second cavity 12 precisely matches the outer diameter of the rotating shaft 2, reducing relative wobbling. Simultaneously, the keyway 13 on the inner wall of the second cavity 12 aligns with the locking groove 3 of the rotating shaft 2, creating conditions for the locking strip 8 to embed and form a mechanical key connection. At the same time, the locking strip 8 is inserted along the channel formed by the keyway 13 and the locking groove 3, embedding itself within both, forming a torque transmission path between the rotating shaft 2 and the sprocket 5. During the process, the end of the snap-fit ​​strip 8 presses against the arc-shaped end face of the bottom of the plug-in post 16. Utilizing the characteristics of the arc surface, the plug-in post 16 is pushed upward against the elastic force of the spring 15, making room for the snap-fit ​​strip 8 to be inserted. After the snap-fit ​​strip 8 is inserted into place, the spring 15 releases its elastic force, pushing the plug-in post 16 to reset. Its bottom is tightly attached to the surface of the rectangular strip 7, forming an axial limit for the snap-fit ​​strip 8, preventing the snap-fit ​​strip 8 from moving within the keyway 13 and the locking groove 3. After installation, the elastic force of the spring 15 ensures that the plug-in post 16 continues to press the rectangular strip 7, enhancing the limiting effect. The snap-fit ​​ring 17 is then fitted onto the second sleeve 11. By rotating the snap-fit ​​ring 17, the threaded surface 18 on the surface of the second sleeve 11 and the threaded groove on the inner wall of the snap-fit ​​ring 17 are engaged, allowing it to spirally advance along the threaded surface. The pointed ring 19 at the end of the snap ring 17 gradually embeds into the triangular groove 20 at the top of the plug post 16, using the wedge structure to further press down the plug post 16, while restricting its axial and circumferential movement to prevent loosening. Finally, the mounting hole at the end of the second sleeve 11 away from the first sleeve 9 is aligned with the mating hole on the surface of the rotating shaft 2, and a bolt is inserted to fix it through, thereby radially strengthening the connection between the second sleeve 11 and the rotating shaft 2, assisting in the transmission of torque and preventing radial displacement.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A motor drive fixing mechanism for a sizing machine sizing trough, characterized in that, It includes a motor (1) and a sprocket (5). The sprocket (5) is located in front of the output end of the motor (1). A rotating shaft (2) is installed at the output end of the motor (1). A locking groove (3) is opened on the surface of the rotating shaft (2). A locking cylinder (6) is provided at the middle of the rear of the sprocket (5). A rectangular strip (7) is fixedly installed behind the locking cylinder (6). A locking strip (8) is fixedly installed behind the rectangular strip (7). The rectangular strip (7) and the locking strip (8) are installed in the locking groove (3). A sleeve mechanism (4) is installed on the surface of the rotating shaft (2). The sleeve mechanism (4) includes a first sleeve (9) and a second sleeve (11). The first sleeve (9) and the second sleeve (11) are fixedly connected. The rotating shaft (2) and the sprocket (5) can be fixedly connected through the sleeve mechanism (4).

2. The sizing machine sizing trough motor drive fixing mechanism according to claim 1, characterized in that, The second sleeve (11) has a second inner cavity (12) inside, which is matched with the outer diameter of the rotating shaft (2).

3. The sizing machine sizing trough motor drive fixing mechanism according to claim 1, characterized in that, The first sleeve (9) has a first inner cavity (10) inside, which is matched with the outer diameter of the snap-fit ​​sleeve (6).

4. The sizing machine sizing trough motor drive fixing mechanism according to claim 2, characterized in that, The second inner cavity (12) has a keyway (13) inside, and the keyway (13) corresponds to the size of the snap-fit ​​strip (8).

5. The sizing machine sizing trough motor drive fixing mechanism according to claim 4, characterized in that, The second sleeve (11) has two plug-in pins (16) symmetrically installed at the end near the first sleeve (9), and the bottom of the plug-in pins (16) is inserted into the keyway (13).

6. The sizing machine sizing trough motor drive fixing mechanism according to claim 5, characterized in that, Two extension plates (14) are symmetrically installed at the end of the first sleeve (9) near the surface of the second sleeve (11). The two extension plates (14) correspond to the two plug posts (16) respectively, and a spring (15) connects the extension plates (14) and the plug posts (16).

7. The sizing machine sizing trough motor drive fixing mechanism according to claim 5, characterized in that, The plug post (16) has a triangular groove (20) on its surface near the top. The second sleeve (11) has a snap ring (17) movably disposed on its surface. The snap ring (17) has a pointed ring (19) at its end, which corresponds to the triangular groove (20).

8. The sizing machine sizing trough motor drive fixing mechanism according to claim 7, characterized in that, The second sleeve (11) has a threaded surface (18) on its surface, and the inner wall of the snap ring (17) has a threaded groove, which is engaged with the threaded surface (18).

9. The sizing machine sizing trough motor drive fixing mechanism according to claim 1, characterized in that, The second sleeve (11) has two symmetrical mounting holes at the end away from the first sleeve (9), and the rotating shaft (2) has symmetrical mating holes on its surface, with the mounting holes corresponding to the mating holes.

10. The sizing machine sizing trough motor drive fixing mechanism according to claim 5, characterized in that, The bottom end face of the plug (16) is provided with an arc.