Direct drive motor for high speed paper cup machine

Abstract

The utility model discloses a direct drive motor for high -speed paper cup machine, including the shell, the shell is connected with front end cover and rear end cover, is equipped with the first bearing groove of the outward opening on the front end cover, is installed with the first bearing in the first bearing groove, is equipped with the second bearing groove of the outward opening on the rear end cover, is installed with the second bearing in the second bearing groove, is installed with the pivot on the first bearing with second bearing, and the end part of pivot that stretches out front end cover is equipped with the connecting flange, is equipped with the conical part of the rear end of connecting flange on the pivot, and the conical part abuts on the first bearing, install stator in the shell, and the rotor that stretches into the stator is equipped with on the pivot, and the end part of pivot that stretches out rear end cover is installed with the encoder, and the protection cover that covers on the encoder is equipped with on the rear end cover, and the connecting flange connection coupling is set up on the pivot, and the intermediate connection structure is reduced, guarantees the stability of torque transmission, installs the encoder collection pivot's rotation angle in the rear end of pivot, so as to obtain pivot position parameter, matches the scene of load requirement angle.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a direct drive motor for a high-speed paper cup machine. Background Technology

[0002] An electric motor is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. In circuit diagrams, an electric motor is represented by the letter M. Its main function is to generate driving torque, serving as a power source for electrical appliances or various machines.

[0003] Motor output power is generally achieved through a transmission connection consisting of a shaft connecting a reducer, a connecting plate, and a coupling. In particular, a separate connection structure is required between the coupling and the shaft. The transmission process is not direct drive, and loosening of the intermediate connection structure can affect torque transmission. Furthermore, the shaft rotation angle cannot be directly obtained, making it unsuitable for applications requiring specific load angles.

[0004] As a result, existing motors suffer from poor torque transmission stability and the inability to collect shaft angle data. Utility Model Content

[0005] (I) Technical Issues

[0006] The purpose of this invention is to provide a direct drive motor for high-speed paper cup machines, which solves the problems of poor torque transmission stability and inability to collect shaft angle in existing motors.

[0007] (II) Technical Solution

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

[0009] A direct-drive motor for a high-speed paper cup machine includes a housing, a front cover and a rear cover connected to the housing. The front cover has an outwardly opening first bearing groove in which a first bearing is installed. The rear cover has an outwardly opening second bearing groove in which a second bearing is installed. A rotating shaft is mounted on the first bearing and the second bearing. The end of the rotating shaft extending out of the front cover has a connecting flange. The rotating shaft has a tapered portion located at the rear end of the connecting flange, and the tapered portion abuts against the first bearing. A stator is installed inside the housing, and a rotor extending into the stator is mounted on the rotating shaft. An encoder is mounted on the end of the rotating shaft extending out of the rear cover, and a protective cover is provided on the rear cover over the encoder.

[0010] Preferably, the rear end cover is provided with a pressure cap for pressing the second bearing, and the protective cover is installed on the pressure cap.

[0011] Preferably, a spacer is installed on the rotating shaft, the rotor is fixed on the spacer, a third bearing groove is provided at the end of the rotor away from the spacer, an expansion sleeve is installed in the third bearing groove, and the expansion sleeve is connected to the rotating shaft.

[0012] Preferably, a water-cooled shell is installed inside the outer casing, and a plurality of partitions are evenly distributed along the length direction on the outer side of the water-cooled shell. The partitions and the outer casing enclose a circulation channel, and a water-cooled connector communicating with the circulation channel is installed on the outer casing.

[0013] Preferably, the connecting flange and the rotating shaft are integrally formed.

[0014] Preferably, the rear end cover is provided with a waterproof elbow joint.

[0015] Preferably, the protective cover is provided with a waterproof connector.

[0016] Preferably, the connecting flange is provided with a protruding structure for positioning.

[0017] Preferably, the cross-section of the protruding structure has an annular groove, and the cross-section of the annular groove has an inverted triangular structure.

[0018] (III) Beneficial Effects

[0019] The shaft is rotated and supported by installing a first bearing on the front cover and a second bearing on the rear cover. At the same time, the tapered part on the shaft abuts against the first bearing to limit the installation position of the shaft. The rotor installed on the shaft is driven to rotate at high speed by the stator installed in the housing and the rotor installed on the shaft after the stator conducts electricity.

[0020] The connecting flange on the rotating shaft directly connects to the coupling, reducing intermediate connection structures and ensuring the stability of torque transmission.

[0021] Meanwhile, an encoder is installed at the rear end of the shaft to collect the rotation angle of the shaft, so as to obtain the shaft position parameters and match the load requirements of the scenario. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0023] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present utility model;

[0024] Figure 3 This is an exploded structural diagram of an embodiment of the present utility model;

[0025] exist Figures 1 to 3 In the diagram, the correspondence between component names or lines and the drawing numbers is as follows:

[0026] 1. Outer shell; 2. Front cover; 3. Rear cover; 4. First bearing groove; 5. First bearing; 6. Second bearing groove; 7. Second bearing; 8. Rotating shaft; 9. Connecting flange; 10. Tapered part; 11. Stator; 12. Rotor; 13. Encoder; 14. Protective cover; 15. Pressure cover; 16. Spacer; 17. Third bearing groove; 18. Expansion sleeve; 19. Water-cooled shell; 20. Spacer bar; 21. Circulation channel; 22. Water-cooled connector; 23. Waterproof elbow; 24. Waterproof connector; 25. Protruding structure; 26. Annular groove. Detailed Implementation

[0027] 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] See Figures 1-3 As shown, this utility model proposes a direct-drive motor for a high-speed paper cup machine, which outputs torque to achieve transmission and can also bear load. Specifically, it includes a housing 1, which is connected to a front cover 2 and a rear cover 3. The front cover 2 has an outwardly opening first bearing groove 4, in which a first bearing 5 is installed. The rear cover 3 has an outwardly opening second bearing groove 6, in which a second bearing 7 is installed. A rotating shaft 8 is installed on the first bearing 5 and the second bearing 7. The first bearing 5 is secured to the first bearing groove 4, and the second bearing 7 is secured to the second bearing groove 6. The rotating shaft 8 is stably installed through the first bearing 5 and the second bearing 7, ensuring stable rotation under load. The front cover 2 and the rear cover 3, secured to the housing 1, provide internal protection and also serve as the main load-bearing components for the rotating shaft 8. A connecting flange 9 is provided at the end of the rotating shaft 8 that extends out of the front end cover 2. A tapered part 10 is provided on the rotating shaft 8 at the rear end of the connecting flange 9. The tapered part 10 abuts against the first bearing 5. By directly setting the connecting flange 9 on the rotating shaft 8, the coupling is connected through the connecting flange 9 to form a direct drive transmission, thereby ensuring the stability of torque transmission.

[0029] The connecting flange 9 and the rotating shaft 8 are integrally formed. The connecting flange 9 has a protruding structure 25 for positioning. This protruding structure 25 is inserted into the coupling for positioning. Generally, the connecting flange 9 has multiple connecting holes arranged circumferentially around the protruding structure 25. Fasteners in these connecting holes securely connect the connecting flange 9 and the coupling. Simultaneously, an annular groove 26 is formed in the cross-section of the protruding structure 25. The annular groove 26 has an inverted triangular cross-section, which serves as a guide and positioner when used with the coupling, ensuring stable connection and limiting movement.

[0030] Specifically, a stator 11 is installed inside the housing 1, and a rotor 12 extends into the stator 11 on the rotating shaft 8. After the stator 11 conducts electricity, it drives the rotor 12 to rotate the rotating shaft 8 and output torque. In order to facilitate the acquisition of the angular position parameters of the rotating shaft 8 to meet the requirements of the load for the transmission angle, an encoder 13 is installed at the end of the rotating shaft 8 that extends out of the rear end cover 3. The rear end cover 3 is provided with a protective cover 14 covering the encoder 13. The encoder 13 is a mature device used to acquire the rotation angle of the rotating shaft 8, and the encoder 13 is protected by the protective cover 14.

[0031] After the rotating shaft 8 is installed, it is positioned by abutting against the first bearing 5 through the tapered part 10. At the same time, a pressure cover 15 for pressing the second bearing 7 is provided on the rear end cover 3. The protective cover 14 is installed on the pressure cover 15, which limits the second bearing 7 and ensures a stable connection between the rotating shaft 8 and the second bearing 7. The protective cover 14 is installed on the pressure cover 15 to protect the encoder 13.

[0032] Meanwhile, a spacer 16 is installed on the rotating shaft 8, and the rotor 12 is fixed on the spacer 16. The spacer 16 positions the rotating shaft 8 after it is inserted into the front end cover 2, and also positions the first bearing 5. A third bearing groove 17 is provided at the end of the rotor 12 away from the spacer 16. An expansion sleeve 18 is installed in the third bearing groove 17 and is connected to the rotating shaft 8. After the expansion sleeve 18 is installed in the third bearing groove 17, it uses expansion to stably connect the rotor 12 and the rotating shaft 8. This also facilitates the subsequent disassembly of the rotor 12, and the expansion sleeve 18 protects the rotating shaft 8, eliminating the need for machining a keyway.

[0033] Specifically, heat is generated during motor operation, and air cooling is commonly used. However, the heat dissipation efficiency is low under heavy loads. To improve heat dissipation efficiency, a water-cooled shell 19 is installed inside the outer casing 1. The outer surface of the water-cooled shell 19 is provided with several spacers 20 evenly distributed along the length direction. The spacers 20 and the outer casing 1 enclose a circulation channel 21. A water-cooled connector 22 is installed on the outer casing 1, which connects to the circulation channel 21. Cooling water is injected through the water-cooled connector 22 and flows unidirectionally along the circulation channel 21, thereby ensuring that the water-cooled shell 19 can have a low temperature. The heat generated by the stator 11 after it is fixed on the water-cooled shell 19 is reduced through water circulation heat exchange, thereby ensuring the performance of the motor during operation.

[0034] Meanwhile, in order to facilitate the internal wiring of the motor, a waterproof elbow 23 is provided on the rear cover 3. The waterproof elbow 23 is used to pass through the wire to achieve a conductive connection to the internal stator 11. A waterproof connector 24 is provided on the protective cover 14. The waterproof connector 24 is used to pass through the signal line to connect to the encoder 13 for signal acquisition.

[0035] The proposed improvements in the 8-angle detection and direct drive connection structure of the main motor shaft in this embodiment can be applied to other parts related to motor control, which can utilize mature motor technologies.

[0036] 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 or an electrical connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A direct drive motor for a high speed paper cup machine, characterized by: The device includes an outer casing, which is connected to a front cover and a rear cover. The front cover has an outwardly opening first bearing groove, in which a first bearing is installed. The rear cover has an outwardly opening second bearing groove, in which a second bearing is installed. A rotating shaft is installed on the first bearing and the second bearing. The end of the rotating shaft extending out of the front cover is provided with a connecting flange. The rotating shaft is provided with a tapered portion located at the rear end of the connecting flange, and the tapered portion abuts against the first bearing. A stator is installed inside the housing, and a rotor extending into the stator is provided on the rotating shaft; An encoder is installed at the end of the rotating shaft that extends out of the rear end cover, and a protective cover is provided on the rear end cover to cover the encoder.

2. The direct drive motor for a high-speed paper cup machine according to claim 1, characterized in that: The rear end cover is provided with a pressure cap for pressing the second bearing, and the protective cover is installed on the pressure cap.

3. A direct drive motor for a high-speed paper cup machine according to claim 2, characterized in that: A spacer is installed on the rotating shaft, the rotor is fixed on the spacer, and a third bearing groove is provided at the end of the rotor away from the spacer. An expansion sleeve is installed in the third bearing groove and the expansion sleeve is connected to the rotating shaft.

4. A direct drive motor for a high-speed paper cup machine according to claim 3, characterized in that: A water-cooled shell is installed inside the outer casing. Several partitions are evenly distributed along the length direction on the outer side of the water-cooled shell. The partitions and the outer casing enclose a circulation channel. A water-cooled connector communicating with the circulation channel is installed on the outer casing.

5. A direct drive motor for a high-speed paper cup machine according to claim 4, characterized in that: The connecting flange and the rotating shaft are integrally formed.

6. A direct drive motor for a high-speed paper cup machine according to claim 5, characterized in that: The rear cover is equipped with a waterproof elbow joint.

7. A direct drive motor for a high-speed paper cup machine according to claim 6, characterized in that: The protective cover is equipped with a waterproof connector.

8. A direct drive motor for a high-speed paper cup machine according to any one of claims 1-7, characterized in that: The connecting flange is provided with a protruding structure for positioning.

9. A direct drive motor for a high-speed paper cup machine according to claim 8, characterized in that: The cross-section of the protruding structure has an annular groove, and the cross-section of the annular groove is an inverted triangular structure.

Images