Direct drive motor with fast axial adjustment function

Abstract

The application discloses a direct drive motor with a quick axial adjustment function, which comprises a motor shell and a connecting shell, the side of the motor shell is provided with the connecting shell; further comprising: a front end cover arranged on the left side of the connecting shell, the inner wall of the connecting shell is provided with a stator core, and the inner side of the stator core is provided with a stator winding; a rear end cover arranged on the right side of the motor shell; a rotating shaft rod installed in the interior of the stator winding, the inner side of the rotating shaft rod is provided with a positioning connecting piece, and the end of the positioning connecting piece is fixedly connected with a positioning ring seat. The direct drive motor with the quick axial adjustment function adjusts the offset of the rotating shaft rod by rotating the butt joint screw rod, driving the connecting ring seat and the rotating shaft rod to move, so that the appropriate axial offset can be adjusted according to the installation requirement, and the machining precision of the rotating shaft rod is effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of direct drive motor technology, specifically a direct drive motor with rapid axial adjustment function. Background Technology

[0002] Direct drive motors do not require a transmission device when under load. Their main function is to generate driving torque and serve as a power source for electrical appliances or various machines. They are a type of motor and are mainly composed of a stator core, stator windings, and a frame. They have advantages such as large starting thrust, high transmission stiffness, fast dynamic response, high positioning accuracy, quiet operation, energy saving, and smooth operation.

[0003] During the machining of a direct drive motor, the motor shaft needs to be machined according to specific dimensions. To ensure precise installation of the motor shaft, the machining accuracy of the motor shaft and external components must be guaranteed. When errors occur during the machining process, the clearance between the motor shaft and the external components cannot be properly adjusted, and the axial installation offset cannot be controlled. When the clearance between the motor shaft and the external components is large, the motor shaft will wobble and shift during rotation. When the clearance between the motor shaft and the external components is small, the motor shaft will experience greater friction.

[0004] To address the existing problems, there is an urgent need to innovate based on the existing direct drive motor. Summary of the Invention

[0005] The purpose of this invention is to provide a direct drive motor with rapid axial adjustment function to solve the problems mentioned in the background art. In the manufacturing process of a direct drive motor, the motor shaft needs to be machined according to specific dimensions. To ensure precise installation of the motor shaft, the machining accuracy of the motor shaft and external components must be guaranteed. When errors occur during the machining process, the clearance between the motor shaft and the external components cannot be well adjusted, and the axial installation offset cannot be controlled. When the clearance between the motor shaft and the external components is large, the motor shaft will wobble and shift during rotation. When the clearance between the motor shaft and the external components is small, the motor shaft will experience excessive friction.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a direct drive motor with rapid axial adjustment function, comprising a motor housing and a connecting housing, wherein the connecting housing is provided on the side of the motor housing;

[0007] Also includes:

[0008] The front end cover is located on the left side of the connecting housing, and the inner wall of the connecting housing is provided with a stator core, and the inner side of the stator core is provided with a stator winding.

[0009] The rear end cover is located on the right side of the motor housing;

[0010] A rotating shaft is installed inside the stator winding, and a positioning connecting piece is provided on the inner side of the rotating shaft, and a positioning ring seat is fixedly connected to the end of the positioning connecting piece;

[0011] The heat dissipation fins are fixedly connected to the outer wall of the positioning ring seat, and the internal thread of the positioning ring seat is connected to the mating screw.

[0012] The mounting base is fixedly connected to the inner wall of the rear end cover.

[0013] As an optional solution for the direct drive motor with rapid axial adjustment function described in this invention, the positioning connecting piece is nested inside the rotating shaft, and the positioning connecting piece and the positioning ring seat are integrally formed, and the positioning connecting piece is set at an equal angle with respect to the rotating shaft.

[0014] As an optional solution for the direct drive motor with rapid axial adjustment function described in this invention, the heat dissipation fins are arranged at equal angles with respect to the positioning ring seat, and the heat dissipation fins and the positioning ring seat are interconnected, and there is a gap between the heat dissipation fins and the front end cover.

[0015] As an optional solution for the direct drive motor with rapid axial adjustment function described in this invention, the end of the docking screw is provided with a connecting ring plate, and the connecting ring plate is internally nested with balls.

[0016] As an optional solution for the direct drive motor with rapid axial adjustment function described in this invention, the connecting ring is nested inside the connecting housing, and the inner surface of the connecting housing is in contact with the outer surface of the ball, and the connecting ring and the docking screw are movably connected.

[0017] As an optional solution for the direct drive motor with rapid axial adjustment function described in this invention, a connecting worm gear is movably installed inside the fixed base, and an adjustment knob is fixedly connected to the end of the connecting worm gear, with a gap between the adjustment knob and the rear end cover.

[0018] As an optional embodiment of the direct drive motor with rapid axial adjustment function described in this invention, a worm gear is provided on the side of the connecting worm, and a winding turntable is fixedly connected to the side of the worm gear, and the diameter of the worm gear is smaller than the diameter of the winding turntable.

[0019] As an optional solution for the direct drive motor with rapid axial adjustment function described in this invention, the winding turntable and the fixed base are rotatably connected, and a traction wire is provided on the outer side of the winding turntable, and a movable block is fixedly connected to the end of the traction wire.

[0020] As an optional embodiment of the direct drive motor with rapid axial adjustment function described in this invention, the traction wire and the movable block are both arranged at equal angles with respect to the winding turntable, and a positioning rod is provided inside the movable block, with a gap between the positioning rod and the fixed seat.

[0021] As an optional solution for the direct drive motor with rapid axial adjustment function described in this invention, the end of the positioning rod is fixedly connected to a pressing block, and a spring is nested outside the positioning rod. The end of the pressing block is in contact with the outer surface of the rotating shaft, and the end of the spring is in contact with the outer surface of the movable block. The pressing block and the spring are both set at equal angles with respect to the fixed seat.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. The direct drive motor with rapid axial adjustment function is equipped with a positioning ring seat. The positioning ring seat is located outside the rotating shaft and is connected to the rotating shaft through positioning connecting pieces, allowing the rotating ring seat and the rotating shaft to rotate simultaneously. Multiple positioning connecting pieces are provided to increase the contact surface, making it easier for the heat on the rotating shaft to be transferred into the connecting ring seat. Multiple heat dissipation fins are provided on the outside of the connecting ring seat. The heat dissipation fins and the connecting ring seat are hollow to reduce their weight. When the connecting ring seat and the heat dissipation fins rotate, the heat dissipation fins will have full contact with the air, further improving the heat dissipation efficiency.

[0024] 2. The direct drive motor with rapid axial adjustment function is equipped with a docking screw. By rotating the docking screw, the docking screw drives the connecting ring seat and the rotating shaft to move, thereby adjusting the offset of the rotating shaft. This makes it easy to adjust the appropriate axial offset according to the installation requirements and effectively reduces the machining accuracy of the rotating shaft.

[0025] 3. The direct drive motor with rapid axial adjustment function is equipped with a pressure block. Multiple pressure blocks are set inside the fixed seat and connected to the rotating shaft to position the rotating shaft. The pressure block can slide within the fixed seat by compressing the spring, thereby automatically adjusting the gap between the rotating shaft and the pressure block. The pressure block is made of graphite, which also has a lubricating effect while positioning.

[0026] 4. The direct drive motor with rapid axial adjustment is equipped with a winding turntable. The winding turntable rotates within the fixed seat, and the diameter of the worm gear is smaller than that of the winding turntable. Multiple traction wires are arranged on the outer side of the winding turntable. By simultaneously winding multiple traction wires, the traction wires pull the movable block, causing the movable block to slide within the fixed seat. The compression of the spring at the bottom of the movable block is automatically adjusted, making it easy to adjust and control the pressure of the pressing block according to requirements. The adjustment operation is relatively simple and convenient. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of a partial cross-sectional structure during an explosion, as shown in the present invention.

[0028] Figure 2 This is a side-section diagram of the connection structure between the rotating shaft and the positioning ring seat of the present invention;

[0029] Figure 3 This is a schematic diagram of the orthographic connection structure between the rotating shaft and the positioning connecting piece of the present invention;

[0030] Figure 4 For the present invention Figure 2 Enlarged structural diagram at point A in the middle;

[0031] Figure 5 This is a schematic diagram of the connection structure between the fixing seat and the pressing block of the present invention;

[0032] Figure 6 This is a schematic diagram of the connection structure between the fixed base and the worm gear disk of the present invention;

[0033] Figure 7 This is a schematic cross-sectional view of the fixing seat structure of the present invention.

[0034] In the diagram: 1. Motor housing; 2. Connecting housing; 3. Front cover; 4. Rear cover; 5. Stator core; 6. Stator winding; 7. Rotating shaft; 8. Positioning connecting piece; 9. Positioning ring seat; 10. Heat dissipation fins; 11. Connecting screw; 12. Connecting ring piece; 13. Ball bearing; 14. Fixed seat; 15. Connecting worm gear; 16. Adjustment knob; 17. Worm gear; 18. Winding turntable; 19. Traction wire; 20. Movable block; 21. Positioning rod; 22. Pressing block; 23. Spring. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 are within the scope of protection of the present invention.

[0036] Example 1

[0037] This embodiment aims to address the problem that the rotating shaft 7 generates heat during rotation, and if this heat cannot be dissipated in time, it will accumulate and affect the service life of the internal components of the direct drive motor. Please refer to [link to relevant documentation]. Figures 1 to 3The present invention provides a technical solution: a direct drive motor with rapid axial adjustment function, comprising a motor housing 1 and a connecting housing 2, wherein the connecting housing 2 is provided on the side of the motor housing 1; and further comprising:

[0038] The front cover 3 is located on the left side of the connecting housing 2, and the inner wall of the connecting housing 2 is provided with a stator core 5, and the inner side of the stator core 5 is provided with a stator winding 6.

[0039] The rear end cover 4 is located on the right side of the motor housing 1;

[0040] Rotary shaft 7 is installed inside stator winding 6, and a positioning connecting piece 8 is provided on the inner side of rotating shaft 7, and a positioning ring seat 9 is fixedly connected to the end of positioning connecting piece 8;

[0041] The heat dissipation fins 10 are fixedly connected to the outer wall of the positioning ring seat 9, and the positioning ring seat 9 is internally threaded with a mating screw 11;

[0042] The mounting base 14 is fixedly connected to the inner wall of the rear end cover 4;

[0043] The positioning connecting piece 8 is nested inside the rotating shaft 7, and the positioning connecting piece 8 and the positioning ring seat 9 are integrated. The positioning connecting piece 8 is set at an equal angle with respect to the rotating shaft 7. The heat dissipation fins 10 are set at an equal angle with respect to the positioning ring seat 9. The heat dissipation fins 10 and the positioning ring seat 9 are interconnected, and there is a gap between the heat dissipation fins 10 and the front end cover 3.

[0044] The positioning ring seat 9 utilizes multiple heat dissipation fins 10, and both the positioning ring seat 9 and the heat dissipation fins 10 are hollow devices with interconnected internal cavities to reduce overall weight. Positioning connecting pieces 8 are fixed at equal angles on the positioning ring seat 9, nested inside the rotating shaft 7 to connect the rotating shaft 7 to the positioning ring seat 9. Multiple positioning connecting pieces 8 increase the contact surface between the positioning ring seat 9 and the positioning connecting pieces 8, facilitating the transfer of heat generated by the rotation of the rotating shaft 7 to the positioning ring seat 9. The heat is then dissipated by the multiple heat dissipation fins 10 on the positioning ring seat 9. When the rotating shaft 7 rotates, it simultaneously drives the positioning ring seat 9 and the heat dissipation fins 10 to rotate, creating airflow disturbance and ensuring sufficient contact between the air and the heat dissipation fins 10, further improving heat dissipation.

[0045] Example 2

[0046] This embodiment aims to facilitate the solution of the problem of how to adjust the axial offset according to installation requirements. This embodiment is an improvement on Embodiment 1. For details, please refer to [link to Embodiment 1]. Figures 1 to 4The end of the docking screw 11 is provided with a connecting ring 12, and a ball 13 is nested inside the connecting ring 12. The connecting ring 12 is nested inside the connecting housing 2, and the inner surface of the connecting housing 2 and the outer surface of the ball 13 are in contact with each other. The connecting ring 12 and the docking screw 11 are movably connected.

[0047] Screws are used to connect the motor housing 1 to the connecting housing 2 and the rear end cover 4, and screws are used to fix the connecting housing 2 to the motor housing 1. When it is necessary to move the axial offset of the rotating shaft 7 during the installation process, the mating screw 11 on the connecting housing 2 is rotated. The mating screw 11 and the positioning ring seat 9 are threadedly connected to each other, so that the positioning ring seat 9 and the rotating shaft 7 are offset laterally. The rotating shaft 7 is used to limit the movement of the positioning ring seat 9, so that the movement of both is more stable. This makes it easier to install even when there are minor machining errors, thereby reducing the machining accuracy of the rotating shaft 7 and the external accessories.

[0048] The end of the docking screw 11 is provided with a connecting ring plate 12, which is nested inside the connecting housing 2. When the rotating shaft 7 rotates, it will drive the positioning ring seat 9, the docking screw 11 and the connecting ring plate 12 to rotate simultaneously on the connecting housing 2. Multiple balls 13 are nested on the connecting ring plate 12 and connected to the inner wall of the connecting housing 2 to reduce the friction when the connecting ring plate 12 rotates, making the rotation of both smoother.

[0049] Example 3

[0050] This embodiment aims to facilitate a solution to the problem of how to automatically adjust the installation gap while reducing rotational friction. This embodiment is an improvement on Embodiment 1. For details, please refer to [link to Embodiment 1]. Figure 1 , Figure 5 and Figure 7 The traction wire 19 and the movable block 20 are both set at equal angles with respect to the winding turntable 18. The movable block 20 is provided with a positioning rod 21 inside, and there is a gap between the positioning rod 21 and the fixed seat 14. The end of the positioning rod 21 is fixedly connected to a pressing block 22, and a spring 23 is nested outside the positioning rod 21. The end of the pressing block 22 is in contact with the outer surface of the rotating shaft 7, and the end of the spring 23 is in contact with the outer surface of the movable block 20. The pressing block 22 and the spring 23 are both set at equal angles with respect to the fixed seat 14.

[0051] The fixed seat 14 on the rear cover 4 contains multiple pressing blocks 22. These pressing blocks 22 limit the end of the rotating shaft 7. A spring 23 is installed on each pressing block 22. When the pressing block 22 is under pressure, it causes the positioning rod 21 to slide within the movable block 20. The movement of the pressing block 22 compresses the spring 23. The extension and retraction of the spring 23 adjusts the position of the pressing block 22 within the fixed seat 14, facilitating its operation. The spring 23 is used to limit the rotation of the shaft 7. When the rotation of the shaft 7 has errors, the extension and retraction of the spring 23 is used to automatically adjust the connection gap between the pressure block 22 and the rotation of the shaft 7, further reducing the machining accuracy of the rotation of the shaft 7 and the external parts. The pressure block 22 is made of graphite. The multiple pressure blocks 22 set on the outside of the rotation of the shaft 7 can limit the rotation of the shaft 7 and lubricate the rotation of the shaft 7 at the same time, reducing the friction when the shaft 7 rotates.

[0052] Example 4

[0053] This embodiment aims to facilitate the solution of how to control the pressure of the pressure block 22 by adjusting the compression of the spring 23. This embodiment is an improvement on Embodiment 1. For details, please refer to [link to Embodiment 1]. Figure 1 and Figures 5 to 7 A connecting worm gear 15 is movably installed inside the fixed base 14, and an adjustment knob 16 is fixedly connected to the end of the connecting worm gear 15. There is a gap between the adjustment knob 16 and the rear end cover 4. A worm wheel 17 is provided on the side of the connecting worm gear 15, and a winding turntable 18 is fixedly connected to the side of the worm wheel 17. The diameter of the worm wheel 17 is smaller than the diameter of the winding turntable 18. The winding turntable 18 is rotatably connected to the fixed base 14. A traction wire 19 is provided on the outer side of the winding turntable 18, and a movable block 20 is fixedly connected to the end of the traction wire 19.

[0054] When it is necessary to adjust the compression of the spring 23 on the pressure block 22, the adjustment knob 16 on the rear end cover 4 is turned. The adjustment knob 16 drives the connecting worm gear 15 to rotate. The connecting worm gear 15 is connected to the worm wheel 17, which in turn drives the worm wheel 17 and the winding turntable 18 to rotate within the fixed seat 14. The diameter of the worm wheel 17 is smaller than the diameter of the winding turntable 18. Multiple traction wires 19 are provided on the outer side of the winding turntable 18. By simultaneously winding the multiple traction wires 19, the traction wires 19 pull the movable block 20, allowing the movable block 20 to slide within the fixed seat 14. The compression of the spring 23 at the bottom of the movable block 20 is automatically adjusted, which facilitates the adjustment and control of the pressure of the pressure block 22 according to the requirements. The adjustment operation is relatively simple and convenient.

[0055] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0056] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0057] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A direct drive motor with rapid axial adjustment function, comprising a motor housing (1) and a connecting housing (2), wherein the connecting housing (2) is provided on the side of the motor housing (1). Its features are, Also includes: The front end cover (3) is located on the left side of the connecting housing (2), and the inner wall of the connecting housing (2) is provided with a stator core (5), and the inner side of the stator core (5) is provided with a stator winding (6). The rear end cover (4) is located on the right side of the motor housing (1); Rotary shaft (7) is installed inside the stator winding (6), and a positioning connecting piece (8) is provided on the inner side of the rotating shaft (7), and a positioning ring seat (9) is fixedly connected to the end of the positioning connecting piece (8). Heat dissipation fins (10) are fixedly connected to the outer wall of the positioning ring seat (9), and the internal thread of the positioning ring seat (9) is connected to a mating screw (11). The fixing seat (14) is fixedly connected to the inner wall of the rear end cover (4); The fixed base (14) is movably installed with a connecting worm (15), and the end of the connecting worm (15) is fixedly connected with an adjustment knob (16), and there is a gap between the adjustment knob (16) and the rear end cover (4). The connecting worm (15) is provided with a worm wheel disk (17) on its side, and a winding turntable (18) is fixedly connected to the side of the worm wheel disk (17), and the diameter of the worm wheel disk (17) is smaller than the diameter of the winding turntable (18). The winding turntable (18) and the fixed base (14) are rotatably connected, and a traction wire (19) is provided on the outer side of the winding turntable (18), and a movable block (20) is fixedly connected to the end of the traction wire (19). The traction wire (19) and the movable block (20) are both arranged at equal angles with respect to the winding turntable (18), and a positioning rod (21) is provided inside the movable block (20), and there is a gap between the positioning rod (21) and the fixed base (14). The end of the positioning rod (21) is fixedly connected to a pressing block (22), and a spring (23) is nested outside the positioning rod (21). The end of the pressing block (22) is in contact with the outer surface of the rotating shaft (7), and the end of the spring (23) is in contact with the outer surface of the movable block (20). The pressing block (22) and the spring (23) are both set at equal angles with respect to the fixed seat (14).

2. A direct drive motor with rapid axial adjustment function according to claim 1, characterized in that: The positioning connecting piece (8) is nested inside the rotating shaft (7), and the positioning connecting piece (8) and the positioning ring seat (9) are integrated. The positioning connecting piece (8) is set at an equal angle with respect to the rotating shaft (7).

3. A direct drive motor with rapid axial adjustment function according to claim 1, characterized in that: The heat dissipation fins (10) are arranged at equal angles with respect to the positioning ring seat (9), and the heat dissipation fins (10) and the positioning ring seat (9) are interconnected, and there is a gap between the heat dissipation fins (10) and the front cover (3).

4. A direct drive motor with rapid axial adjustment function according to claim 1, characterized in that: The end of the docking screw (11) is provided with a connecting ring (12), and the connecting ring (12) is provided with a ball (13) nested inside.

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