Fixed-type frame connecting structure

Abstract

The utility model relates to power motor technical field, especially a fixed type frame connecting structure, including fixed main shaft, first base, second base and driving motor that connect gradually, the both ends of first base are provided with upper end connecting portion and lower end connecting portion respectively, fixed main shaft sets up in upper end connecting portion, second base sets up in lower end connecting portion, driving motor sets up on second base, first base is provided with wiring channel, wiring channel is used for with upper end connecting portion and lower end connecting portion intercommunication. The utility model discloses through setting fixed main shaft, first base, second base and the modularization connection of driving motor's gradually module, has realized the high integration of motor internal structure and axial layout optimization, is convenient for assembly and post -maintenance, has improved production efficiency. Compact overall design is favorable to the miniaturization and light weight of motor.

Description

Technical Field

[0001] This utility model relates to the field of power motor technology, and in particular to a fixed frame connection structure. Background Technology

[0002] In the field of motor equipment, traditional motor installation and wiring structures often face problems such as insufficient rigidity, messy wiring, and poor sealing. Conventional motors typically design the drive unit, base, and wiring structure separately, resulting in a large overall axial dimension, loose structure, weak resistance to vibration and torque impact, and susceptibility to transmission accuracy issues caused by relative displacement of components. Furthermore, internal cables often employ radially distributed routing, with cables meandering within the machine, easily causing friction and interference with moving parts, leading to insulation wear or signal interference, posing safety hazards. In addition, multiple radial cable outlets require individual sealing, which not only complicates the structure but also significantly increases the risk of failure due to the numerous sealing points, making it difficult to effectively prevent the intrusion of dust, moisture, and other contaminants, thus limiting the reliability and service life of the motor in harsh environments.

[0003] While existing technologies attempt to optimize wiring by adding external protection or partially modifying the base structure, they fail to fundamentally achieve a unified approach to modular integration and axial sealing, and still suffer from problems such as low assembly efficiency and inconvenient maintenance. Therefore, there is an urgent need for a highly integrated, axially routed fixed frame connection structure to improve the overall rigidity of the motor, wiring safety, and environmental adaptability. Utility Model Content

[0004] To address the aforementioned issues, this invention achieves a high degree of integration and optimized axial layout of the motor's internal structure by sequentially modularly connecting a fixed spindle, a first base, a second base, and a drive motor. This facilitates assembly and subsequent maintenance, improving production efficiency. The overall design is compact, contributing to motor miniaturization and lightweighting through the fixed frame connection structure.

[0005] The technical solution adopted by this utility model is: a fixed frame connection structure, including a fixed spindle, a first base, a second base and a drive motor connected in sequence. The first base is provided with an upper connection part and a lower connection part at both ends. The fixed spindle is provided at the upper connection part, the second base is provided at the lower connection part, and the drive motor is provided on the second base. The first base is provided with a wiring channel for connecting the upper connection part and the lower connection part.

[0006] A further improvement to the above solution is that the fixed spindle is provided with a fixed connecting ring, the upper connecting part is provided with a connecting platform, and the fixed connecting ring is set on the connecting platform; the fixed connecting ring is provided with multiple connecting elements, and the fixed connecting ring is fixedly connected to the connecting platform through the connecting elements.

[0007] A further improvement to the above scheme is that the fixed spindle is provided with a wiring through groove, one end of which is connected to the wiring channel.

[0008] A further improvement to the above solution is that the first base is provided with a transmission mounting cavity located between the upper end connecting part and the lower end connecting part, a transmission assembly is provided in the transmission mounting cavity, the drive motor is provided with an output shaft, one end of the output shaft extends to the transmission mounting cavity and is connected to the transmission assembly in a transmission manner.

[0009] A further improvement to the above scheme is that the transmission assembly includes a sun gear and a plurality of planetary gears. The sun gear is mounted on the output shaft of the drive motor, and the plurality of planetary gears are mounted in the transmission housing and mesh with the sun gear.

[0010] A further improvement to the above scheme is that the first base is provided with a rotating connecting shaft, a bearing is installed on the rotating connecting shaft, and the rotating connecting shaft is connected to a planetary gear through the bearing.

[0011] A further improvement to the above solution is that the lower connecting part is provided with a connecting inner ring and a connecting outer ring, and a connecting groove is formed between the connecting inner ring and the connecting outer ring. The second base is provided with a connecting boss, and the connecting boss is disposed on the connecting groove.

[0012] A further improvement to the above solution is that the connecting outer ring is composed of multiple connecting ribs, the connecting ribs are provided with assembly connection holes, the connecting boss is provided with fixing holes, and the assembly connection holes are used to insert screws to connect with the fixing holes.

[0013] A further improvement to the above solution is that the wiring channel includes an upper groove, a wiring hole, and a lower groove connected in sequence. The upper groove is connected to the upper end connection part, and the lower groove is connected to the lower end connection part. The wiring hole is disposed on the first base and is used to connect the upper groove and the lower groove.

[0014] A further improvement to the above solution is that the second base is provided with a control board, and the control board is provided with a connector, the insertion port of the connector facing the lower groove.

[0015] The beneficial effects of this utility model are: Compared to existing motor frame structures, this invention achieves a high degree of integration and optimized axial layout of the motor's internal structure by sequentially connecting a fixed spindle, a first base, a second base, and a drive motor. The first base has upper and lower connecting parts at both ends, connecting the fixed spindle and the second base respectively, forming a stable axial support frame. This enhances the overall structural rigidity and coaxiality, effectively resisting multidimensional vibrations and torque impacts during motor operation, preventing relative displacement between components, and ensuring the accuracy and smoothness of power transmission. Specifically, a wiring channel inside the first base connects the upper and lower connecting parts, creating a protected axial wiring path. This allows the internal cables of the motor to be centrally and orderly guided from the drive motor end to the fixed spindle direction via the wiring channel, avoiding the risk of messy cable tangling inside the motor and interference / wear with moving parts, as in traditional radial wiring methods. This significantly improves the reliability and safety of the wiring layout. The wiring channel facilitates centralized management and fixing of cables, reducing cable damage caused by bending and friction, and extending cable lifespan. The centralized axial cable routing simplifies the external interface; a single seal at the fixed spindle outlet effectively protects against external contaminants such as dust, oil, and moisture. Standardized connectors facilitate assembly and subsequent maintenance, improving production efficiency. The compact overall design promotes motor miniaturization and weight reduction, increasing power density. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the fixed frame connection structure of this utility model; Figure 2 for Figure 1 Exploded view of the connection structure of the fixed frame in the middle; Figure 3 for Figure 1 An exploded view of the fixed frame connection structure from another perspective; Figure 4 for Figure 1 Front view of the fixed frame connection structure; Figure 5 for Figure 4 Sectional view of AA.

[0017] Explanation of reference numerals in the attached drawings: Fixed spindle 1, Fixed connecting ring 11, Connecting element 12, Wiring through groove 13, First base 2, Upper connecting part 21, Connecting platform 211, Lower connecting part 22, Connecting inner ring 221, Connecting outer ring 222, Connecting rib 223, Assembly connecting hole 224, Wiring channel 23, Upper groove 231, Wiring hole 232, Lower groove 233, Transmission mounting cavity 24, Transmission assembly 25, Sun gear 251, Planetary gear 252, Rotary connecting shaft 26, Bearing 261, Second base 3, Connecting boss 31, Control board 32, Connector 33, Drive motor 4, Output shaft 41. Detailed Implementation

[0018] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0019] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Figures 1-5As shown, in one embodiment of this utility model, a fixed frame connection structure is provided, including a fixed spindle 1, a first base 2, a second base 3, and a drive motor 4 connected in sequence. The first base 2 has an upper connecting portion 21 and a lower connecting portion 22 at its two ends. The fixed spindle 1 is disposed in the upper connecting portion 21, the second base 3 is disposed in the lower connecting portion 22, and the drive motor 4 is disposed on the second base 3. The first base 2 has a wiring channel 23 for connecting the upper connecting portion 21 and the lower connecting portion 22. This embodiment achieves a high degree of integration of the internal structure of the motor and optimized axial layout by sequentially connecting the fixed spindle 1, the first base 2, the second base 3, and the drive motor 4. The first base 2 has an upper connecting part 21 and a lower connecting part 22 at both ends, which connect the fixed spindle 1 and the second base 3 respectively, forming a stable axial support frame. This enhances the rigidity and coaxiality of the overall structure, effectively resists multidimensional vibration and torque impact during motor operation, prevents relative displacement between components, and ensures the accuracy and smoothness of power transmission. Specifically, the wiring channel 23 inside the first base 2 connects the upper connecting part 21 and the lower connecting part 22, creating a protected axial wiring path. This allows the internal cables of the motor to be centrally and orderly led from the drive motor 4 to the fixed spindle 1 via the wiring channel 23, avoiding the risk of messy cable tangling inside the motor and interference wear with moving parts, as is common in traditional radial wiring methods. This significantly improves the reliability and safety of the wiring layout. The wiring channel 23 facilitates centralized management and fixing of cables, reduces cable damage caused by bending and friction, and extends cable life. The centralized axial cable routing simplifies the external interface, requiring only a single seal at the fixed spindle 1 outlet to effectively protect against external contaminants such as dust, oil, and moisture. This embodiment utilizes standardized connectors for easy assembly and subsequent maintenance, improving production efficiency. The compact overall design facilitates motor miniaturization and weight reduction, increasing power density.

[0021] A fixed connecting ring 11 is provided on the fixed spindle 1, and a connecting platform 211 is provided on the upper connecting part 21. The fixed connecting ring 11 is mounted on the connecting platform 211. The fixed connecting ring 11 is provided with multiple connecting elements 12, and the fixed connecting ring 11 is fixedly connected to the connecting platform 211 through the connecting elements 12. In this embodiment, by providing a fixed connecting ring 11 on the fixed spindle 1 and a corresponding connecting platform 211 on the upper connecting part 21 of the first base 2, and then fastening the fixed connecting ring 11 to the connecting platform 211 through multiple connecting elements 12 (such as screws, bolts, etc.), axial loads, radial torques, and vibration impacts generated during operation can be effectively transmitted and withstood, preventing loosening or displacement at the connection point, and ensuring the coaxiality and positional accuracy of the overall structure. The evenly distributed layout of the multiple connecting elements 12 optimizes the stress distribution of the mating surface, avoids local stress concentration, and improves fatigue resistance. The use of standard parts such as screws facilitates assembly, adjustment, and subsequent maintenance and disassembly. While ensuring the reliability of the connection, it also takes into account the flexibility and manufacturability of the modular design, providing a stable and durable power output foundation for the motor.

[0022] The fixed spindle 1 is provided with a cable routing groove 13, one end of which is connected to the cable routing channel 23. In this embodiment, by providing a cable routing groove 13 on the fixed spindle 1 and precisely connecting one end of it to the cable routing channel 23 of the first base 2, the cable can smoothly enter the cable routing groove 13 of the fixed spindle 1 from the drive motor 4 end through the second base 3 and the cable routing channel 23 inside the first base 2, and finally be led out axially, completely avoiding the risk of bending, tangling, or interference and wear with moving parts in the transition area of ​​the cable.

[0023] The first base 2 has a transmission housing cavity 24 located between the upper connecting part 21 and the lower connecting part 22. A transmission assembly 25 is housed within the transmission housing cavity 24. The drive motor 4 has an output shaft 41, one end of which extends into the transmission housing cavity 24 and is connected to the transmission assembly 25. Specifically, the transmission assembly 25 includes a sun gear 251 and multiple planetary gears 252. The sun gear 251 is mounted on the output shaft 41 of the drive motor 4, and the multiple planetary gears 252 are located in the transmission housing cavity 24 and mesh with the sun gear 251. In this embodiment, by providing a transmission housing cavity 24 inside the first base 2 and integrating the planetary transmission assembly 25, including the sun gear 251 and multiple planetary gears 252, into this cavity, a compact, efficient, and well-protected reduction transmission unit is constructed. The output shaft 41 of the drive motor 4 extends directly into the cavity and mounts the sun gear 251. Power is transmitted through the sun gear to the circumferentially distributed planetary gears, achieving a large reduction ratio and high torque power transmission. By housing the transmission system within the first base 2, the axial dimension is shortened, the overall structural layout is optimized, and space utilization and power density are improved. The enclosed transmission housing 24 effectively isolates external dust, oil, and other contaminants, while reducing noise and vibration during transmission. The load-sharing design of multiple planetary gears 252 distributes the meshing stress, improving transmission smoothness, load-bearing capacity, and system reliability, giving the motor a comprehensive advantage of compact structure, high transmission efficiency, smooth operation, and strong environmental adaptability.

[0024] The first base 2 is provided with a rotary connecting shaft 26, on which a bearing 261 is mounted. The rotary connecting shaft 26 is connected to the planetary gear 252 via the bearing 261. In this embodiment, by setting the rotary connecting shaft 26 at the center of the planetary gear 252 and mounting the bearing 261 on the shaft, stable, low-friction support and precise rotational positioning of the planetary gear 252 within the transmission housing 24 are achieved. This effectively distributes the radial and axial forces generated by gear meshing, reduces vibration and noise during gear transmission, and ensures the smoothness and accuracy of power transmission. The selection of the bearing 261 enhances the rigidity of the planetary gear 252 system, preventing gear wobbling or jamming under high-speed, heavy-load conditions, and improving the load-bearing capacity, efficiency, and service life of the entire transmission system.

[0025] The lower connecting portion 22 is provided with an inner connecting ring 221 and an outer connecting ring 222, forming a connecting groove between the inner connecting ring 221 and the outer connecting ring 222. The second base 3 is provided with a connecting boss 31, which is disposed on the connecting groove. Specifically, the outer connecting ring 222 is composed of multiple connecting ribs 223, each with an assembly connecting hole 224. The connecting boss 31 has a fixing hole, which is used to insert screws for connection with the fixing hole. In this embodiment, by providing a nested interface consisting of the inner connecting ring 221, the outer connecting ring 222, and the connecting groove in between in the lower connecting portion 22, and providing a matching connecting boss 31 on the second base 3, a high-rigidity and high-precision centering connection structure is formed. The connecting groove provides radial limiting and initial guidance for the boss, ensuring rapid and accurate positioning when the two bases are docked. Specifically, the connecting outer ring 222 is composed of multiple circumferentially distributed connecting ribs 223, which effectively reduces the overall weight and provides uniform stress support. By opening mounting connection holes 224 on the ribs and fastening them with screws to the fixing holes on the connecting boss 31, a multi-point, evenly distributed locking connection is achieved. The circumferentially distributed locking method of multiple screws significantly increases the clamping force on the mating surface, improves the connection rigidity and torsional resistance, effectively suppresses vibration, prevents loosening, and ensures the stability and reliability of power transmission from the first base 2 to the second base 3.

[0026] The cable routing channel 23 includes an upper groove 231, a cable routing hole 232, and a lower groove 233 connected in sequence. The upper groove 231 is connected to the upper connecting part 21, and the lower groove 233 is connected to the lower connecting part 22. The cable routing hole 232 is disposed on the first base 2 and is used to connect the upper groove 231 and the lower groove 233. Specifically, the second base 3 is provided with a control board 32, and the control board 32 is provided with a connector 33, the insertion port of the connector 33 facing the lower groove 233. In this embodiment, by integrating a continuous through-type cable routing channel 23 composed of the upper groove 231, the cable routing hole 232, and the lower groove 233 inside the first base 2, the concealed, orderly, and protected cable routing from the top to the bottom of the base is achieved. By completely accommodating the cable inside the base, the problems of tangling, wear, interference, and messy appearance caused by external cable routing are avoided, improving the overall integrity and safety of the equipment. Specifically, the lower groove 233 is connected to the lower end connection part 22, and the insertion port of the connector 33 of the control board 32 on the second base 3 faces the opening of the lower groove 233 directly, so that after the cable is led out through the wiring channel 23, it can be directly, quickly and accurately aligned and plugged into the connector 33, which greatly simplifies the wiring operation during assembly and maintenance and improves the connection reliability.

[0027] The above embodiments only illustrate several implementation methods 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 patent. 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 patent should be determined by the appended claims.

Claims

1. A fixed frame connection structure, characterized in that: The device includes a fixed spindle, a first base, a second base, and a drive motor connected in sequence. The first base has an upper connecting part and a lower connecting part at its two ends. The fixed spindle is located at the upper connecting part, the second base is located at the lower connecting part, and the drive motor is located on the second base. The first base has a wiring channel for connecting the upper connecting part and the lower connecting part.

2. The fixed frame connection structure according to claim 1, characterized in that: The fixed spindle is provided with a fixed connecting ring, and the upper connecting part is provided with a connecting platform. The fixed connecting ring is set on the connecting platform. The fixed connecting ring is provided with multiple connecting elements, and the fixed connecting ring is fixedly connected to the connecting platform through the connecting elements.

3. The fixed frame connection structure according to claim 1, characterized in that: The fixed spindle is provided with a wiring groove, one end of which is connected to the wiring channel.

4. The fixed frame connection structure according to claim 1, characterized in that: The first base is provided with a transmission mounting cavity located between the upper end connecting part and the lower end connecting part. A transmission assembly is provided in the transmission mounting cavity. The drive motor is provided with an output shaft. One end of the output shaft extends into the transmission mounting cavity and is connected to the transmission assembly in a transmission manner.

5. The fixed frame connection structure according to claim 4, characterized in that: The transmission assembly includes a sun gear and multiple planetary gears. The sun gear is mounted on the output shaft of the drive motor, and the multiple planetary gears are mounted in the transmission housing and mesh with the sun gear.

6. The fixed frame connection structure according to claim 3, characterized in that: The first base is provided with a rotating connecting shaft, on which a bearing is installed, and the rotating connecting shaft is connected to a planetary gear through the bearing.

7. The fixed frame connection structure according to claim 1, characterized in that: The lower connecting part is provided with a connecting inner ring and a connecting outer ring, and a connecting groove is formed between the connecting inner ring and the connecting outer ring. The second base is provided with a connecting boss, and the connecting boss is disposed on the connecting groove.

8. The fixed frame connection structure according to claim 7, characterized in that: The connecting outer ring is composed of multiple connecting ribs, each of which has an assembly connection hole. The connecting boss has a fixing hole, and the assembly connection hole is used to insert a screw to connect with the fixing hole.

9. The fixed frame connection structure according to claim 1, characterized in that: The wiring channel includes an upper groove, a wiring hole, and a lower groove that are connected in sequence. The upper groove is connected to the upper end connection part, and the lower groove is connected to the lower end connection part. The wiring hole is disposed on the first base and is used to connect the upper groove and the lower groove.

10. The fixed frame connection structure according to claim 9, characterized in that: The second base is provided with a control board, and the control board is provided with a connector, the insertion port of the connector facing the lower groove.

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