Motor spiral distribution device
By designing a spiral-arranged motor mounting slot and a gradually enlarged cylinder structure on the fixed seat, the problem of unreasonable motor layout in multi-joint robots is solved, the compactness and high efficiency of the motor spiral distribution device are achieved, and the overall performance and space utilization of the robot are improved.
Patent Information
- Application Number
- CN202421580892.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-07-04
AI Technical Summary
The arrangement of drive motors in existing multi-joint robots is not reasonable enough, resulting in a large size and complex structure of the motor base, affecting the overall performance and increasing manufacturing and maintenance costs.
The fixed seat is a cylinder structure, the diameter gradually increases in the axial direction, and there are spiral motor installation slots on the side. The drive motor is installed one by one to ensure that the motor is arranged in a misaligned manner on the axial projection surface to avoid overlap, and the front and rear height difference is formed through the diameter changes of the fixed seat, completely avoiding overlap of the motor on the axial projection surface.
The structure of the motor spiral distribution device is simple and compact, which improves the compactness and efficiency of the overall layout, avoids rope wrapping, and improves the stability and space utilization of the robot.
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Figure CN223194542U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical equipment, in particular to a motor spiral distribution device. Background Art
[0002] With the rapid development of robotics technology, especially the widespread application of humanoid robots and complex manipulators, higher requirements are placed on the number, layout and efficiency of drive motors.
[0003] In current multi-joint robots, the drive motors are often poorly arranged, resulting in bulky and complex motor mounts. These issues not only affect the robot's overall performance but also increase manufacturing and maintenance costs. Therefore, an improved motor mount design is urgently needed to address these existing issues. Utility Model Content
[0004] Based on the problems of motor seats in the prior art, the utility model provides a motor spiral distribution device with a simple and compact structure and a reasonable motor arrangement.
[0005] The utility model provides a motor spiral distribution device, comprising:
[0006] The fixing seat is a columnar structure, the diameter of the fixing seat gradually increases along its axial direction, and the side of the fixing seat is provided with at least one row of motor mounting grooves arranged spirally along its side.
[0007] A plurality of driving motors are installed in the motor installation slots in a one-to-one correspondence.
[0008] In some embodiments, the diameter of the fixing seat increases linearly along its axial direction.
[0009] In some embodiments, the spacing between two adjacent motor mounting slots is equal.
[0010] In some embodiments, in each row of motor mounting slots, the angle differences between adjacent motor mounting slots are equal.
[0011] In some embodiments, a wiring groove is opened on one side of the motor mounting groove.
[0012] In some embodiments, the side surface of the fixing seat is provided with two rows of motor mounting grooves arranged spirally along the side surface.
[0013] In some embodiments, a spiral groove is formed along the portion between the two rows of motor mounting grooves on the side surface of the fixing seat.
[0014] In some embodiments, the motor shaft of the drive motor is perpendicular to the axis of the fixing base.
[0015] In some embodiments, both ends of the fixing seat are respectively provided with mounting fixing parts.
[0016] Compared with the prior art, the advantages and positive effects of the present invention are:
[0017] The above-mentioned motor spiral distribution device has a simple structure, small size and compact structure; the motor mounting grooves are arranged in a spiral along the outer circumference of the fixing seat, ensuring that each drive motor is staggered in the circumference on the axial projection surface of the motor spiral distribution device, avoiding the overlap of the motors on the axial projection surface, and thus avoiding the entanglement of the ropes; at the same time, the diameter of the fixing seat gradually increases, so that the motor mounting grooves form a front and rear height difference, ensuring that the positions of all motors in the rear circumferential area are completely staggered with the motors in the front circumferential area, thereby completely avoiding the overlap of the motors on the axial projection surface and improving the compactness and efficiency of the overall layout. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0019] Figure 1 This is a three-dimensional diagram of the motor spiral distribution device of the utility model;
[0020] Figure 2 This is a front view of the motor spiral distribution device of the utility model;
[0021] Figure 3 This is a left side view of the motor spiral distribution device of the utility model;
[0022] Figure 4 This is a three-dimensional diagram of the fixing seat in the motor spiral distribution device of the utility model;
[0023] Figure 5 This is a front view of the fixing seat in the motor spiral distribution device of the utility model;
[0024] Description of reference numerals:
[0025] 1-motor spiral distribution device; 11-fixing seat; 111-motor mounting slot; 112-wiring slot; 113-spiral groove; 114-mounting fixing part; 12-drive motor;
[0026] 2-Rotary wheel. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0028] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0029] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections. A person of ordinary skill in the art can understand the specific meanings of the above terms in the present invention based on the specific circumstances. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any appropriate manner in any one or more embodiments or examples.
[0030] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more.
[0031] Reference Figure 1-Figure 5 , which is an embodiment of the motor spiral distribution device 1 of the present invention. The motor spiral distribution device 1 can be used as a line drive device to drive the rotation of multiple joints of a rope-line manipulator or other mechanical mechanisms.
[0032] The motor spiral distribution device 1 includes a fixing base 11 and a plurality of drive motors 12. A rotating wheel 2 is fixed on the motor shaft of each drive motor 12, and a rope is wound around the rotating wheel 2. The motor drives the rotating wheel 2 to rotate and drive the joint movement through the rope.
[0033] See also Figure 4 and Figure 5The fixing base 11 is a cylindrical structure, and the diameter of the fixing base 11 gradually increases along its axial direction. The side of the fixing base 11 is provided with at least one row of motor mounting grooves 111 arranged spirally along its side. The drive motors 12 are installed in the motor mounting grooves 111 in a one-to-one correspondence. Among them, the end with a smaller diameter of the fixing base 11 is the front end, and the end with a larger diameter is the rear end. After the drive motor 12 is fixed to the motor mounting groove 111, the motor shaft extends outward, and the runner 2 is fixed on the motor shaft. The rope wrapped around the runner 2 is led to the front side and connected to the joint.
[0034] The above-mentioned motor spiral distribution device 1 has a simple structure, and the motor mounting grooves 111 are arranged in a spiral along the outer circumference of the fixing seat 11, ensuring that on the axial projection surface of the motor spiral distribution device 1, each driving motor is staggered in the circumference, avoiding the overlap of the motors on the axial projection surface, and thus avoiding the entanglement of the ropes; at the same time, the diameter of the fixing seat 11 gradually increases, so that the motor mounting grooves 111 form a front and rear height difference, ensuring that the positions of all motors in the rear circumferential area are completely staggered with the motors in the front circumferential area, thereby completely avoiding the overlap of the motors on the axial projection surface, and improving the compactness and efficiency of the overall layout.
[0035] In this embodiment, if Figure 4 As shown, the side of the mounting base 11 is provided with two rows of motor mounting slots 111 arranged in a spiral pattern. This double-spiral arrangement allows for a more compact arrangement of the motors on the mounting base 11, simplifying the overall structure of the mounting base 11. Preferably, the starting positions of the two rows of motor mounting slots 111 are opposite each other and rotate in the same direction to avoid mutual interference.
[0036] In this embodiment, the diameter of the mounting base 11 increases linearly along its axial direction. This linear diameter increase effectively disperses stress, enhancing the overall strength and stability of the mounting base 11 while ensuring secure motor installation. Furthermore, this linear change creates a continuously changing, smooth curved surface on the side of the motor spiral distribution device 1, creating a more visually harmonious appearance.
[0037] In other embodiments, the diameter of the fixing seat 11 can increase nonlinearly, or can be a truncated cone. In some specific applications, the diameter of the fixing seat 11 can be designed to change in multiple stages according to actual needs, that is, it has different increase speeds at different axial positions to adapt to specific installation requirements and space limitations. The fixing seat 11 can also adopt an elliptical cone, a frustum or other complex curved surface structure, or a multi-step step-by-step increase, a streamlined design, etc., to further optimize space utilization and structural strength. In addition, the material and manufacturing process of the fixing seat 11 can also be adjusted according to the specific shape, such as using 3D printing technology or precision casting technology to ensure the accuracy and reliability of the complex structure.
[0038] In this embodiment, in each row of motor mounting slots 111 , the intervals between two adjacent motor mounting slots 111 are equal, thereby ensuring uniformity of motor installation and maximizing space utilization.
[0039] Furthermore, if Figure 3 As shown, in each row of motor mounting slots 111 , the angle difference between adjacent motor mounting slots 111 is equal. For example, the angle difference α can be 10°, 25°, or adjusted according to the specific size and number of the drive motors 12 .
[0040] The equally spaced, angularly spaced motor mounting slots 111 ensure uniform distribution of the motors during installation. This uniformity not only enhances the aesthetics of the entire motor spiral distribution device 1 but, more importantly, helps achieve balanced power transmission. When multiple drive motors 12 operate simultaneously, the even distribution of the drive motors 12 can reduce vibration and stress concentration caused by uneven loads, thereby improving the stability and reliability of the manipulator or the entire machine. This also maximizes space utilization.
[0041] On one side of each motor mounting slot 111, a wiring slot 112 is also provided for routing and managing the cables of the drive motor 12. The width and depth of the wiring slot 112 are designed according to the thickness of the cables of the drive motor 12 to ensure that the cables can pass through and be fixed in the slot smoothly.
[0042] The drive motor 12 can be fixed in more than just a direct insertion into the motor mounting slot 111. This "plug-and-play" approach simplifies the installation process. If greater stability is required or to accommodate a specific working environment, a more sophisticated and reliable fixing structure, such as screws, snaps, or adhesive fixation, can be employed.
[0043] The motor shaft of the drive motor 12 is perpendicular to the axis of the fixing seat 11. This arrangement is conducive to the direct transmission of the output power of the drive motor 12, reduces power loss, improves the stability of the motor installation, and simplifies the motor installation and maintenance process.
[0044] Furthermore, if Figure 4 As shown, a spiral groove 113 is formed on the side of the fixing base 11 between the two rows of motor mounting grooves 111. The design of the spiral groove 113 can reduce the weight of the fixing base 11 while maintaining its strength and rigidity, thereby improving the overall performance of the fixing base 11.
[0045] Mounting fixtures 114 are provided at both ends of the mounting base 11. These fixtures 114 can utilize plug-in posts, threaded holes, slots, or other connection structures to securely mount the motor spiral distribution device 1 on the robot or manipulator. During installation, fasteners such as bolts and nuts can be used to connect the mounting base 11 to the main structure of the robot or manipulator.
[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the above embodiments, or to replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present invention.
Claims
1. A motor spiral distribution device, as a line drive device, for driving a rope-line manipulator, characterized in that: include: A fixing base, the fixing base being a columnar structure, the diameter of the fixing base gradually increasing along its axial direction, and the side of the fixing base being provided with at least one row of motor mounting grooves arranged spirally along the side thereof; A plurality of driving motors are installed in the motor installation slots in a one-to-one correspondence.
2. The motor spiral distribution device according to claim 1, characterized in that: The diameter of the fixing seat increases linearly along the axial direction thereof.
3. The motor spiral distribution device according to claim 2, characterized in that: In each row of motor mounting slots, the intervals between two adjacent motor mounting slots are equal.
4. The motor spiral distribution device according to claim 3, characterized in that: In each row of motor mounting slots, the angle differences between adjacent motor mounting slots are equal.
5. The motor spiral distribution device according to claim 1, characterized in that: A wiring groove is provided on one side of the motor installation groove.
6. The motor spiral distribution device according to claim 5, characterized in that: The side surface of the fixing seat is provided with two rows of motor mounting grooves which are spirally arranged along the side surface.
7. The motor spiral distribution device according to claim 6, characterized in that: A spiral groove is formed on the side surface of the fixing seat along the portion between the two rows of motor mounting grooves.
8. The motor spiral distribution device according to claim 7, characterized in that: The motor shaft of the driving motor is arranged perpendicular to the axis of the fixing seat.
9. The motor spiral distribution device according to claim 1, characterized in that: Both ends of the fixing seat are respectively provided with mounting fixing parts.