Gear transmission structure

Abstract

The utility model relates to a gear transmission structure, including gear, support end cover, motor, hall sensor and bearing. Gear constitutes by first to fourth gear, forms two stage reduction drive structure. Motor is located in side portion drive first gear, realizes the reduction and increases the twist through pinion and the meshing of the gear wheel. Support end cover is rectangular, integrates first bearing, motor and third bearing support structure, forms the stable rigid frame. Hall sensor contains data processing circuit and inductive chip, through the magnet on the inductive support axle turntable, real -time monitoring rotation position. Through the design of multistage parallel gear transmission, effectively avoided the precision decline problem that the elastic deformation led to when the traditional synchronous belt long distance transmission. According to the gear transmission structure of the utility model embodiment, can effectively improve transmission accuracy, satisfy the demand of high accuracy transmission to precision equipment.

Description

Technical Field

[0001] This utility model relates to the field of mechanical transmission, and in particular to a gear transmission structure. Background Technology

[0002] In industrial automation, synchronous belt drives are commonly used for power transmission and motion control. However, traditional synchronous belts have significant drawbacks in long-distance transmission scenarios. The material of the synchronous belt itself has a certain degree of elasticity, and under tension during long-distance transmission, it undergoes considerable elastic deformation. This deformation leads to tooth pitch errors during transmission, resulting in a significant decrease in transmission accuracy, making it unsuitable for demanding applications such as precision machining and high-end electronic equipment assembly. Therefore, a new transmission structure is urgently needed to address the accuracy degradation caused by elastic deformation during long-distance transmission. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a gear transmission structure with high-precision transmission and stable and reliable characteristics. It effectively solves the problem of decreased accuracy caused by elastic deformation during long-distance transmission in traditional transmission methods, and solves the problems mentioned in the background art.

[0004] This utility model provides the following technical solution: a gear transmission structure, including a gear, a support end cover, a motor, a Hall sensor, and a bearing;

[0005] The gear has a circular hole in the center. The gear includes a first gear, a second gear, a third gear, and a fourth gear. The first gear meshes with the second gear, the second gear is coaxially connected with the third gear, and the third gear meshes with the fourth gear.

[0006] The support end cover is rectangular and is provided with a first bearing support structure, a motor support structure and a third bearing support structure. The motor support structure is located to the left of the first bearing support structure and the third bearing support structure is located to the right of the first bearing support structure.

[0007] The motor is mounted on a motor support structure, and the motor drives the first gear.

[0008] The Hall sensor includes a data processing circuit and a sensing chip. The sensing chip is fixed on the data processing circuit with its sensing end facing down. The output end of the sensing chip is connected to the data input end of the data processing circuit.

[0009] The bearing includes a first bearing, a second bearing, and a third bearing. The first bearing and the second bearing are coaxially connected. The first bearing is located on the first bearing support structure, and the third bearing is located on the third bearing support structure.

[0010] In one embodiment of the utility model, the gear transmission structure includes a support shaft and a bracket.

[0011] In one embodiment of the utility model, the support shaft includes a lower shaft structure, a turntable structure, and an upper shaft structure connected in sequence. The lower shaft structure is disposed inside a third bearing, and a fourth gear is disposed on the upper shaft structure. At least one magnet is disposed on the turntable structure. A Hall sensor uses a sensing chip to sense changes in the magnetic field of the magnet to monitor the motor starting action.

[0012] In one embodiment of the utility model, the bracket is a semi-I-shaped structure, with one end of the bracket located next to the third bearing support structure of the support end cover, and the other end of the bracket connected to the data processing circuit.

[0013] In one embodiment of the utility model, the fourth gear is fixedly connected to the upper shaft structure by bolts.

[0014] In one embodiment of the utility model, the data processing circuit includes a signal conditioning module, a digital processing module, a communication interface module, and a power management module.

[0015] In one embodiment of the utility model, the gear ratio of the first gear and the second gear is 1:10 to 1:30.

[0016] In one embodiment of the utility model, the gear ratio between the third gear and the fourth gear is 1:10 to 1:30.

[0017] In one embodiment of the utility model, the first gear, the second gear, the third gear, and the fourth gear are made of alloy steel.

[0018] In one embodiment of the utility model, bolt holes for fixing are provided at the four corners of the support end cap.

[0019] The beneficial effects of this utility model are:

[0020] Through a multi-stage parallel gear transmission structure, speed reduction and torque increase are achieved by utilizing the meshing transmission of small and large gears. Combined with high-precision gear machining and assembly, the gear transmission structure of this utility model can effectively avoid the elastic deformation problem of traditional synchronous belt transmission over long distances, significantly improving transmission accuracy. At the same time, the design of the Hall sensor and the magnet on the support shaft turntable can accurately monitor the motor start-up and the position of the rotating platform in real time, enabling automated control and precise positioning.

[0021] Other features and aspects of the present invention will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0022] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of the present invention together with the specification and serve to explain the principles of the present invention.

[0023] Figure 1 This diagram shows the main structure of the gear transmission structure according to an embodiment of the present invention.

[0024] Figure 2 This diagram shows an anatomical view of the gear transmission structure according to an embodiment of the present invention. Detailed Implementation

[0025] Various exemplary embodiments, features, and aspects of the present invention will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0026] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model or 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.

[0027] Furthermore, 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0029] Furthermore, to better illustrate this utility model, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this utility model can be implemented even without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail, in order to highlight the main points of this utility model.

[0030] The gear transmission structure of this utility model is a high-precision, stable and reliable transmission device. It is used in the field of mechanical transmission to achieve efficient power transmission, precise control of the position and angle of the rotating platform, and optimization of the internal space layout of the equipment.

[0031] Specific references Figures 1-2 As a specific embodiment of the gear transmission structure of this utility model, the gear transmission structure includes: a gear 110, a motor 210, a Hall sensor 310, a support end cover 610, and a bearing 810. The core components of the gear transmission structure include the gear 110, the motor 210, the Hall sensor 310, the support end cover 610, and the bearing 810.

[0032] Furthermore, such as Figure 1 and Figure 2 As shown, the gear transmission structure includes key components such as gear 110, motor 210, Hall sensor 310, support end cover 610, and bearing 810.

[0033] Gear 110 has a central circular hole and includes a first gear 111, a second gear 112, a third gear 113, and a fourth gear 114. The first gear 111 and the third gear 113 are pinions, while the second gear 112 and the fourth gear 114 are large gears. The first gear 111 meshes with the second gear 112, the second gear 112 is coaxially connected with the third gear 113, and the third gear 113 meshes with the fourth gear 114. Gear 110 employs a two-stage reduction design: the first gear 111 (pinion) meshes with the second gear 112 (large gear), the second gear 112 and the third gear 113 (coaxial pinions and large gears) are linked, and the third gear 113 (pinion) then drives the fourth gear 114 (large gear). This configuration forms a parallel shaft transmission chain of "pinion-large-pinion-large," with the total transmission ratio being the product of the two gear ratios, achieving high torque output while maintaining a compact structure.

[0034] Furthermore, such as Figure 1 and Figure 2 As shown, gear set 110 consists of gears 1 to 4, 114. Gears 111 and 113 are pinions, while gears 112 and 114 are gears. The meshing relationship between gears 110 is clearly visible in the diagram: gear 111 meshes with gear 112, transmitting power to it. Gear 112 then engages with coaxial gear 113, which in turn meshes with gear 114. This multi-stage meshing method achieves multi-stage power transmission and speed reduction / torque amplification, avoiding the accuracy problems caused by elastic deformation in traditional synchronous belt long-distance transmissions.

[0035] The support end cover 610 is rectangular and includes a first bearing support structure 611, a motor support structure 612, and a third bearing support structure 613. The motor support structure 612 is located to the left of the first bearing support structure 611, and the third bearing support structure 613 is located to the right of the first bearing support structure 611. The support end cover 610 is a rectangular structure made of cast iron or aluminum alloy. The left-side motor support structure 612 has a shock-absorbing rubber pad, the middle first bearing support structure 611 supports the output shaft of the motor 210, and the right-side third bearing support structure 613 supports the output shaft.

[0036] Furthermore, such as Figure 2 As shown, the support end cover 610 is rectangular and has a first bearing support structure 611, a motor support structure 612, and a third bearing support structure 613. The motor support structure 612 is on the left side of the first bearing support structure 611, and the third bearing support structure 613 is on the right side, providing mounting and support positions for the motor 210 and the bearing 810, ensuring the stability of the entire structure.

[0037] Motor 210 is mounted on a motor support structure and drives the first gear 111. Motor 210 is installed on the motor support structure 612 of the support end cover 610 and directly drives the first gear 111 via a coupling. A servo or stepper motor 210 is preferred for high-precision control. The side-mounted layout shortens the transmission chain, reduces energy loss, achieves an efficiency of over 95%, and facilitates individual disassembly of motor 210 for maintenance without affecting the overall gear 110 system.

[0038] Furthermore, such as Figure 1 and Figure 2 As shown, the motor 210 is located on the side of the structure. The motor 210 includes a motor end cover 211, a motor rotating shaft 213, and a motor winding stator 212. The first gear 111 is mounted on the motor rotating shaft 213. The motor 210 serves as a power source, directly driving the first gear 111 to the second gear 112, then to the third gear 113, and finally to the fourth gear 114 platform, providing initial power for the entire transmission system.

[0039] The Hall sensor 310 includes a data processing circuit 311 and a sensing chip 312. The sensing chip 312 is fixed on the data processing circuit 311, with its sensing end facing downwards. The output end of the sensing chip 312 is connected to the data input end of the data processing circuit 311. The Hall sensor 310 consists of the sensing chip 312 and the data processing circuit 311. The sensing chip 312 detects changes in the magnetic field based on the Hall effect, and is aligned downwards with the magnet 710 on the support shaft turntable. The data processing circuit 311 amplifies, filters, and digitizes the signal, outputting high-precision position data for feedback in the closed-loop control system.

[0040] Furthermore, such as Figure 2 As shown, the Hall sensor 310 consists of a data processing circuit 311 and a sensing chip 312. The sensing chip 312 is fixed on the data processing circuit 311 with its sensing end facing downwards, and is used to sense changes in the magnetic field of the magnet 710 below. By sensing changes in the magnetic field, the starting action of the motor 210 is monitored, thereby enabling the monitoring of the position and angle of the rotating platform.

[0041] Bearing 810 includes a first bearing 811, a second bearing 812, and a third bearing 813. The first bearing 811 and the second bearing 812 are coaxially connected. The first bearing 811 is located on the first bearing support structure 611, and the third bearing 813 is located on the third bearing support structure 613. Bearing 810 consists of three sets of bearings: the first bearing 811 and the second bearing 812 are coaxially mounted on the output shaft of the motor 210 to form a double-support structure. The inner ring is interference-fitted with the shaft, and the outer ring is embedded in the first bearing support structure 611 of the support end cover 610; the third bearing 813 independently supports the output shaft and is installed inside the third bearing support structure 613 of the support end cover 610.

[0042] Furthermore, such as Figure 2 As shown, bearing 810 includes a first bearing 811, a second bearing 812, and a third bearing 813. The first bearing 811 and the second bearing 812 are coaxially connected and are respectively mounted on their respective support structures. They serve to support gear 110, reduce friction, and ensure stable rotation of the shaft system.

[0043] In this embodiment, the gear transmission structure includes a support shaft 510 and a bracket 410. During actual assembly, the support shaft 510 and bracket 410 are first machined. The support shaft 510 is manufactured using high-precision machining to ensure dimensional accuracy and surface finish. The bracket 410 is manufactured using casting or stamping processes to ensure structural strength and stability. The combined design of the support shaft 510 and bracket 410 provides a basic support frame for the entire hollow rotating platform's bypass structure. The support shaft 510 is responsible for bearing the weight and torque of the rotating components, while the bracket 410 serves to fix and connect the Hall sensor 310, stably connecting the support shaft 510 to the gear 110, ensuring the stability and reliability of the entire structure, and enabling the multi-stage parallel gear transmission to operate smoothly.

[0044] In this embodiment, the support shaft 510 includes a lower shaft structure, a turntable structure, and an upper shaft structure connected in sequence. The lower shaft structure is housed inside the third bearing 813, and the fourth gear 114 is mounted on the upper shaft structure. At least one magnet 710 is mounted on the turntable structure. The Hall sensor 310 uses a sensing chip 312 to detect changes in the magnetic field of the magnet 710 and monitor the start-up action of the motor 210. The lower shaft structure, turntable structure, and upper shaft structure are manufactured using an integrated forging process to ensure the connection strength and coaxiality between the parts. The lower shaft structure is precisely installed inside the third bearing 813 to ensure the support shaft 510 can rotate flexibly. The fourth gear 114 is securely mounted on the upper shaft structure using specialized fixtures and assembly processes to ensure the accuracy of gear 110 transmission. On the turntable structure, at least one magnet 710 is fixed according to design requirements through drilling, embedding, or other methods. The installation position of the magnet 710 needs to be precisely calculated to ensure that the Hall sensor 310 can accurately sense changes in its magnetic field. The Hall sensor 310 is installed at a fixed position near the magnet 710. The sensing chip 312 maintains a suitable distance and angle from the magnet 710. When the motor 210 starts and drives the support shaft 510 to rotate, the magnet 710 on the turntable structure rotates accordingly. The sensing chip 312 of the Hall sensor 310 detects the change in magnetic field, thereby monitoring the start-up action of the motor 210.

[0045] In this embodiment, the bracket 410 has a semi-I-beam structure. One end of the bracket 410 is positioned next to the third bearing support structure 613 of the support end cover 610, and the other end of the bracket 410 is connected to the data processing circuit 311. The bracket 410 adopts a semi-I-beam structure design and is manufactured through machining or mold forming processes to ensure its structural strength and rigidity. During assembly, one end of the bracket 410 is precisely positioned next to the third bearing support structure 613 of the support end cover 610 and fixed using bolts, nuts, and other connectors to ensure a firm and reliable connection between the bracket 410 and the support end cover 610. The other end of the bracket 410 is connected to the data processing circuit 311 through a dedicated interface and connecting cable. The interface design must meet the dual requirements of electrical connection and mechanical fixation to ensure the stability and reliability of data transmission.

[0046] In this embodiment, the fourth gear 114 is fixedly connected to the upper shaft structure by bolts. When assembling the fourth gear 114 and the upper shaft structure, corresponding bolt holes are first machined at the connection point. The position and size of the bolt holes must be strictly machined according to the design requirements to ensure accurate alignment. Then, the fourth gear 114 is fitted onto the upper shaft structure, and bolts of appropriate specifications are passed sequentially through the bolt holes of the fourth gear 114 and the upper shaft structure, and then tightened with nuts. During the bolt tightening process, a diagonal tightening method is used, gradually tightening the nuts multiple times to ensure uniform tightening force on each bolt, thus firmly fixing the fourth gear 114 to the upper shaft structure.

[0047] In this embodiment, the data processing circuit 311 includes a signal conditioning module, a digital processing module, a communication interface module, and a power management module. The data processing circuit 311 adopts a modular design, with each module having a clear division of labor and independent function, facilitating circuit design, debugging, and maintenance. The signal conditioning module effectively improves the quality of sensor signals, ensuring the accuracy of data acquisition; the digital processing module can perform in-depth analysis and processing of signals, enabling real-time monitoring and control of the system's operating status; the communication interface module facilitates data communication and interaction with other devices, enabling system integration and expansion; and the power management module ensures stable power supply to the entire circuit, improving its reliability and anti-interference capabilities. This modular design of the data processing circuit 311 meets the data processing and transmission requirements of the gear transmission structure, improving the overall system's intelligence and automation level.

[0048] In this embodiment, the gear ratio of the first gear 111 and the second gear 112 is 1:10 to 1:30. When designing and manufacturing the first gear 111 and the second gear 112, suitable gear ratio parameters are determined within the range of 1:10 to 1:30 based on specific application requirements and transmission requirements. Using a gear machining tool, the number of teeth, module, pressure angle, and other parameters of the gear 110 are precisely machined according to the selected gear ratio to ensure the machining accuracy and meshing performance of the gear 110. During assembly, the first gear 111 and the second gear 112 are installed on the corresponding shafts according to design requirements. The center distance and meshing clearance between the gears 110 are adjusted to ensure the smoothness and accuracy of the gear transmission. Within the gear ratio range of 1:10 to 1:30, a suitable gear ratio can be flexibly selected according to different working scenarios and load requirements to achieve the function of speed reduction and torque increase.

[0049] In this embodiment, the gear ratio of the third gear 113 and the fourth gear 114 is 1:10 to 1:30. Based on actual application requirements, the gear ratio parameters of the third gear 113 and the fourth gear 114 are determined within the range of 1:10 to 1:30. High-precision gear 110 machining equipment is used, and the gears 110 are machined strictly according to the design parameters to ensure the dimensional and tooth profile accuracy of the gears 110. During assembly, the installation position and meshing state of the third gear 113 and the fourth gear 114 are precisely adjusted to ensure accurate and reliable transmission between them. By adjusting the shaft position and using shims, the center distance and meshing clearance between the gears 110 are precisely controlled to meet design requirements. The 1:10 to 1:30 gear ratio of the third gear 113 and the fourth gear 114 further optimizes the transmission ratio of the multi-stage parallel gear transmission system, achieving more precise speed and torque control.

[0050] In this embodiment, the first gear 111, the second gear 112, the third gear 113, and the fourth gear 114 are made of alloy steel. Alloy steel has advantages such as high strength, high hardness, good wear resistance, and fatigue resistance, which can meet the working requirements of gear 110 under harsh conditions such as high speed and heavy load. Using alloy steel to manufacture gear 110 can improve the load-bearing capacity and service life of gear 110, reduce wear and the probability of failure, and reduce equipment maintenance costs. At the same time, the good machinability and heat treatment properties of alloy steel make it easy to further optimize the performance of gear 110 through reasonable processing and heat treatment processes, thereby improving the reliability and stability of the entire transmission system.

[0051] In this embodiment, bolt holes for fixing are provided at the four corners of the support end cover 610. These bolt holes at the four corners provide a stable and convenient fixing method. From an installation perspective, the standardized layout of the four corner bolt holes facilitates quick positioning and installation, improving assembly efficiency. Regarding structural stability, the symmetrically distributed bolt holes at the four corners evenly distribute the load borne by the support end cover 610, preventing deformation or loosening caused by excessive local stress, thus ensuring the stability and reliability of the entire hollow rotary platform's bypass structure. Furthermore, this fixing method facilitates disassembly and maintenance. When equipment maintenance or component replacement is required, the bolts can be quickly removed, and the support end cover 610 can be taken off, simplifying operation and reducing maintenance and time costs.

[0052] This utility model's gear transmission structure, through the integration of a two-stage gear reduction transmission system and an integrated support end cap, achieves the effects of eliminating transmission elastic deformation and improving positioning accuracy. The gear set achieves stable speed reduction and torque increase through precise meshing of large and small gears, avoiding the error accumulation of synchronous belt drives. The integrated design of the support end cap provides rigid support for the bearings and motor. Combined with the real-time monitoring of the magnet by the Hall sensor, the positioning error of the rotating platform can be controlled within ±0.1°, meeting the high-precision transmission requirements of precision equipment.

[0053] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A gear transmission structure, characterized in that, Includes gears, support end caps, motors, Hall effect sensors, and bearings; The gear has a circular hole in the center. The gear includes a first gear, a second gear, a third gear, and a fourth gear. The first gear meshes with the second gear, the second gear is coaxially connected with the third gear, and the third gear meshes with the fourth gear. The support end cap is rectangular and is provided with a first bearing support structure, a motor support structure and a third bearing support structure. The motor support structure is located to the left of the first bearing support structure and the third bearing support structure is located to the right of the first bearing support structure. The motor is mounted on the motor support structure, and the motor drives the first gear; The Hall sensor includes a data processing circuit and a sensing chip. The sensing chip is fixed on the data processing circuit with its sensing end facing downwards. The output end of the sensing chip is connected to the data input end of the data processing circuit. The bearing includes a first bearing, a second bearing, and a third bearing. The first bearing and the second bearing are coaxially connected. The first bearing is located on the first bearing support structure, and the third bearing is located on the third bearing support structure.

2. The gear transmission structure according to claim 1, characterized in that, The gear transmission structure includes a support shaft and a bracket.

3. The gear transmission structure according to claim 2, characterized in that, The support shaft includes a lower shaft structure, a turntable structure, and an upper shaft structure connected in sequence. The lower shaft structure is located inside the third bearing, the fourth gear is located on the upper shaft structure, and at least one magnet is located on the turntable structure. The Hall sensor uses a sensing chip to sense changes in the magnetic field of the magnet to monitor the motor start-up action.

4. The gear transmission structure according to claim 2, characterized in that, The bracket has a semi-I-shaped structure. One end of the bracket is located next to the third bearing support structure of the support end cover, and the other end of the bracket is connected to the data processing circuit.

5. The gear transmission structure according to claim 3, characterized in that, The fourth gear is fixedly connected to the upper shaft structure by bolts.

6. The gear transmission structure according to claim 1, characterized in that, The data processing circuit includes a signal conditioning module, a digital processing module, a communication interface module, and a power management module.

7. The gear transmission structure according to claim 1, characterized in that, The gear ratio between the first gear and the second gear is 1:10 to 1:

30.

8. The gear transmission structure according to claim 1, characterized in that, The gear ratio between the third gear and the fourth gear is 1:10 to 1:

30.

9. The gear transmission structure according to claim 1, characterized in that, The first gear, the second gear, the third gear, and the fourth gear are made of alloy steel.

10. The gear transmission structure according to claim 1, characterized in that, The support end cap has bolt holes at its four corners for fixing.

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