Driving device and golf bag trolley

Abstract

The utility model provides a driving device and a golf bag trolley, the driving device comprises a shell, two groups of speed reducer assemblies and two driving parts, and the shell is provided with a first accommodating cavity; the two sets of speed reducer assemblies are arranged in the first containing cavity at intervals. The two driving parts are arranged on the shell in a spaced mode, and the driving shaft of each driving part is in driving connection with the transmission piece of the corresponding speed reducer assembly. Every two adjacent output shaft sections in the multiple output shaft sections of the speed reducer assembly are connected through a connecting piece, and the connecting positions of the output shaft sections and the connecting pieces are in clearance fit. Wherein the transmission piece is arranged on the peripheral side of the output shaft section, close to the driving part, in the multiple output shaft sections in a sleeving mode, and the output shaft section, away from the driving part, in the multiple output shaft sections penetrates out of the first containing cavity. The driving device solves the problem that in the prior art, a worm gear and a power output shaft directly drive a wheel set, and when the wheel set outside the driving device is subjected to external force, the external force borne by the wheel set can directly act on the worm gear through the power output shaft.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and more specifically, to a drive device and a golf bag cart. Background Technology

[0002] In existing technology, the power transmission system of golf bag carts mainly relies on the meshing transmission between a motor-driven worm and a worm wheel to transmit power. While this transmission method meets the power requirements of the golf bag cart to a certain extent, when encountering obstacles or uneven surfaces, because the worm wheel directly drives the wheelset through the power output shaft, external forces on the wheelset are directly transmitted to the worm wheel. Since the worm wheel is usually made of plastic, its strength and rigidity are limited. This direct external force can cause deformation of the worm wheel, which in turn affects the normal meshing between the worm wheel and the drive worm, reducing the reliability and efficiency of power transmission. Long-term operation under these conditions may also lead to accelerated wear and even damage to the worm wheel, shortening the overall service life and maintenance cycle of the golf bag cart and increasing the user's operating costs.

[0003] Furthermore, when the golf bag cart is on a slope or under heavy load, the drive unit needs to withstand greater torque, which increases the likelihood of worm gear deformation and further reduces the stability and reliability of the transmission system. Therefore, the drive units of existing golf bag carts suffer from unstable power transmission and worm gear damage when facing complex operating environments, limiting the performance of the golf bag carts and user satisfaction. Utility Model Content

[0004] The main objective of this invention is to provide a drive device and a golf bag cart to solve the problem in the prior art where the worm gear and the power output shaft directly drive the wheel set, and when the wheel set outside the drive device is subjected to external force, the external force on the wheel set will be directly applied to the worm gear through the power output shaft.

[0005] To achieve the above objectives, according to one aspect of the present invention, a driving device is provided, comprising a housing, two sets of reducer assemblies, and two driving units, wherein the housing has a first receiving cavity; the two sets of reducer assemblies are spaced apart within the first receiving cavity; the two driving units are spaced apart on the housing, and each driving unit has a drive shaft; each set of reducer assemblies includes a transmission member and a plurality of sequentially connected output shaft segments, the drive shaft being drivenly connected to the transmission member; adjacent two output shaft segments are connected by a connector, and the connection between the output shaft segment and the connector is a clearance fit; wherein the transmission member is sleeved on the outer periphery of the output shaft segment closest to the driving unit, and the output shaft segment furthest from the driving unit extends out of the first receiving cavity.

[0006] This configuration, by setting each reducer assembly to include a transmission component and multiple sequentially connected output shaft segments, and by connecting adjacent output shaft segments with a connector, employs a clearance fit at the connection point between the output shaft segment and the connector. Furthermore, the output shaft segment furthest from the drive unit extends out of the first receiving cavity and connects to the wheelset. This clearance fit between the output shaft segment and the connector allows for relative movement, effectively absorbing impacts when the wheelset is subjected to external forces, protecting the transmission component from direct damage, and significantly reducing the direct impact on the transmission component when the wheelset is subjected to external forces. This improves the stability and durability of the transmission component, ensures the reliability and smoothness of transmission between the drive shaft and the transmission component, and significantly enhances the performance and service life of the golf bag cart, providing users with a more reliable and efficient user experience.

[0007] In one embodiment, the drive shaft includes a drive worm; the transmission component includes a worm gear structure, and the drive worm is drivenly connected to the worm gear structure.

[0008] This configuration, through the meshing of the drive worm and worm wheel structure, achieves efficient power transmission from the drive unit to the reducer assembly, effectively improving transmission efficiency and reducing energy loss. Especially in applications requiring high torque output, such as the drive unit of a golf cart, it ensures stable vehicle operation on various terrains.

[0009] In one embodiment, the output shaft segment and the connector are in a concave-convex fit.

[0010] This design ensures a stable connection between the output shaft and the connecting parts. At the same time, the clearance fit of the concave and convex structure absorbs external impacts and protects the worm gear structure. This improves the connection stability between the output shaft and the connecting parts, as well as the durability of the reducer components. Especially in the drive units of equipment such as golf carts, it can adapt to various complex operating environments and ensure long-term stable operation of the equipment.

[0011] In one embodiment, both axial ends of the connector have a first mounting groove, and the axial end of the output shaft segment facing the connector has a first mounting protrusion for interlocking with the first mounting groove; or, both axial ends of the connector have a second mounting protrusion, and the axial end of the output shaft segment facing the connector has a second mounting groove for interlocking with the second mounting protrusion; or, both axial ends of the connector have a third mounting protrusion and a third mounting groove, respectively, the axial end of the first output shaft segment facing the connector has a fourth mounting groove for interlocking with the third mounting protrusion, and the axial end of the second output shaft segment facing the connector has a fourth mounting protrusion for interlocking with the third mounting groove.

[0012] This configuration, through the interlocking of the first mounting groove and the first mounting protrusion, enables rapid assembly and disassembly of the output shaft segment and the connecting component, while ensuring the reliability of the connection between the two. This effectively simplifies the assembly process and improves production efficiency, particularly in the assembly of the drive unit of a golf bag cart, significantly reducing assembly time and production costs. Alternatively, through the interlocking of the second mounting groove and the second mounting protrusion, rapid assembly and disassembly of the output shaft segment and the connecting component are achieved, while ensuring the reliability of the connection between the two. This effectively simplifies the assembly process and improves production efficiency, particularly in the assembly of the drive unit of a golf bag cart, significantly reducing assembly time and production costs. Or, through the interlocking of the third mounting protrusion and the fourth mounting groove, and vice versa, rapid assembly and disassembly of the output shaft segment and the connecting component are achieved, while ensuring the reliability of the connection between the two. This effectively simplifies the assembly process and improves production efficiency, particularly in the assembly of the drive unit of a golf bag cart, significantly reducing assembly time and production costs.

[0013] In one embodiment, the first mounting groove extends radially along the connector, and the two first mounting grooves at both ends of the axial direction of the same connector have an included angle in their extending directions; or, the second mounting protrusion extends radially along the connector, and the two second mounting protrusions at both ends of the axial direction of the same connector have an included angle in their extending directions; or, the third mounting protrusion extends radially along one end of the axial direction of the connector, and the third mounting groove extends radially along the other end of the axial direction of the connector, and the extending directions of the third mounting protrusion and the third mounting groove have an included angle.

[0014] This configuration, by setting the included angle, ensures the connection stability between the output shaft section and the connecting parts, while allowing a certain degree of relative movement, absorbing external impacts, and effectively improving the stability of the connection and the impact resistance of the reducer components. Especially in the drive devices of equipment such as golf carts, it can effectively cope with external impacts in various operating environments and ensure stable operation of the equipment.

[0015] In one embodiment, both axial ends of the connector have a first mounting groove, and the axial end of the output shaft section facing the connector has a first mounting protrusion for interlocking with the first mounting groove; the groove width W of the first mounting groove is in the range of 3.5 to 4.5 mm; and / or, the groove length L of the first mounting groove is in the range of 12 to 18 mm; at least in the length direction of the first mounting groove, the first mounting groove and the first mounting protrusion are provided with a gap.

[0016] This design, by precisely controlling the groove width W and groove length L of the first assembly groove, ensures the fitting accuracy between the output shaft section and the connecting parts. At the same time, by setting a gap, a certain degree of elastic deformation is allowed to absorb external impact, effectively improving the connection accuracy and the impact resistance of the reducer assembly. Especially in the drive device of equipment such as golf carts, it can effectively cope with external impacts in various operating environments and extend the service life of the equipment.

[0017] In one embodiment, the axial end face of the connector has a pair of weight-reducing holes, and the pair of weight-reducing holes are symmetrically arranged on both sides of the width direction of the first mounting groove.

[0018] This design, by incorporating weight-reducing holes in the connectors, not only reduces the weight of the connectors but also optimizes their overall structure, improving the overall energy efficiency of the reducer assembly. This effectively reduces the weight of the reducer assembly and improves its energy efficiency, especially in equipment requiring lightweight design, such as golf carts, significantly enhancing the equipment's portability and energy efficiency ratio.

[0019] In one embodiment, the outer peripheral side of the output shaft section near the drive unit has a first anti-rotation protrusion, and the inner peripheral surface of the worm gear structure has a first anti-rotation groove for engaging with the first anti-rotation protrusion; or, the output shaft section near the drive unit has a shaped anti-rotation shaft section, and the worm gear structure has a shaped anti-rotation hole for engaging with the shaped anti-rotation shaft section.

[0020] This configuration ensures a stable connection between the output shaft section and the worm gear structure, preventing relative rotation during transmission and effectively improving the stability and reliability of the transmission system. In particular, it ensures the stability of the worm gear structure during high-speed transmission in drive systems such as golf bag carts, thereby improving equipment performance.

[0021] In one embodiment, the worm gear structure includes a worm gear body and stop rings. The stop rings are arranged in pairs at both axial ends of the worm gear body. A first anti-rotation groove passes through the worm gear body and the two stop rings. The stop rings are used to abut against the inner ring of the bearing structure that supports the output shaft section on which the worm gear structure is sleeved. Alternatively, the worm gear structure includes a worm gear body, and the first anti-rotation groove passes through the worm gear body. The reducer assembly also includes retaining ring structures. The retaining ring structures are arranged in pairs on the output shaft section and are located on both axial sides of the worm gear body. The two retaining ring structures are used to abut against the inner ring of the bearing structure that supports the output shaft section on which the worm gear structure is sleeved.

[0022] This design, through the cooperation between the stop ring and the bearing structure, ensures the axial positioning of the worm gear structure, prevents axial displacement during transmission, and effectively improves the stability and reliability of the transmission system. In particular, in the drive unit of equipment such as golf bag carts, it can ensure the stability of the worm gear structure during high-speed transmission and improve the performance of the equipment.

[0023] In one embodiment, the drive unit includes a motor housing connected to a housing. The motor housing has a second receiving cavity. A first end of the drive worm protrudes through an axial first opening of the second receiving cavity and is drivenly connected to a worm gear structure. A second end of the drive worm protrudes through an axial second opening of the second receiving cavity. The drive device also includes a speed detection component disposed on the motor housing for detecting the speed of the drive worm.

[0024] This configuration, by placing the drive worm gear within the second receiving cavity of the motor housing, achieves an effective connection between the drive unit and the reducer assembly. Simultaneously, the protruding ends of the drive worm gear facilitate connection with external structures, effectively improving the integration and flexibility of the drive unit. This is particularly advantageous in drive units for equipment such as golf carts, enabling a compact structural design while facilitating connection with other vehicle components. Furthermore, the inclusion of a speed detection component allows for real-time monitoring of the drive worm gear's speed, providing data support for intelligent control of the drive unit. This effectively enhances the drive unit's intelligence level and control precision, especially in drive units for equipment like golf carts, enabling precise speed control and improving driving experience and safety.

[0025] In one embodiment, the speed detection component includes a magnetic ring, a main control board, and a magnetic encoder. The magnetic ring is disposed at the end of the second end of the drive worm. The main control board is supported on the motor housing and disposed opposite to the magnetic ring. The magnetic encoder is disposed on the surface of the main control board facing the magnetic ring and disposed opposite to the magnetic ring, for real-time detection of the speed of the drive worm through the magnetic ring.

[0026] This setup, through the cooperation of the magnetic ring and the magnetic encoder, enables real-time, non-contact detection of the drive worm gear speed, improving the accuracy and reliability of the detection. It effectively enhances the accuracy and reliability of speed detection, especially in the drive devices of equipment such as golf carts, enabling real-time monitoring of vehicle speed and providing precise data support for intelligent control.

[0027] According to one aspect of the present invention, a golf bag cart is provided, including a drive unit, the drive unit being the drive unit described above and below. Attached Figure Description

[0028] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0029] Figure 1 An internal schematic diagram of a drive device according to an alternative embodiment of the present invention is shown;

[0030] Figure 2 It shows Figure 1 An exploded structural diagram of the reducer assembly of the drive device in Embodiment 1;

[0031] Figure 3 It shows Figure 1 An exploded structural diagram of the reducer assembly of the drive device in Embodiment 2;

[0032] Figure 4 It shows Figure 1 An exploded structural diagram of the reducer assembly of the drive device in Embodiment 3;

[0033] Figure 5 It shows Figure 1 An exploded structural diagram of the reducer assembly of the drive device in Embodiment 4;

[0034] Figure 6 It shows Figure 2 A schematic diagram of the connecting parts of the reducer assembly in the diagram;

[0035] Figure 7 It shows Figure 1 A structural schematic diagram of the drive unit from another perspective.

[0036] The above figures include the following reference numerals:

[0037] 10. Shell; 11. Receiving cavity;

[0038] 20. Reducer assembly; 21. Worm gear structure; 211. Spline groove; 212. Worm gear body; 213. Stop ring; 22. Output shaft section; 221. First mounting protrusion; 222. Spline; 223. Second mounting groove; 224. Fourth mounting protrusion; 23. Connector; 231. First mounting groove; 232. Weight reduction hole; 233. Second mounting protrusion; 234. Third mounting protrusion; 24. Retaining ring structure;

[0039] 30. Drive unit; 31. Drive worm gear; 32. Motor housing;

[0040] 40. Rotational speed detection component; 41. Magnetic ring; 42. Main control board; 43. Magnetic encoder;

[0041] 50. Bearing structure. Detailed Implementation

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0043] In existing technologies, most golf carts typically transmit power through the meshing of a motor-driven worm gear and worm wheel. During this transmission process, the worm wheel directly drives the wheel assembly via the power output shaft. When the wheel assembly outside the drive unit is subjected to external forces, these forces are directly transmitted to the worm wheel through the power output shaft. Since the worm wheel is made of plastic, this causes deformation. This deformation of the worm wheel cannot ensure the reliability of power transmission and may even pose a risk of damaging the worm wheel.

[0044] To address the problem in existing technologies where the worm gear and power output shaft directly drive the wheel assembly, causing the external force acting on the wheel assembly to be directly transmitted to the worm gear via the power output shaft when the wheel assembly is subjected to external force, this invention provides a drive device and a golf bag cart. The golf bag cart includes a drive device, which is the drive device described above and below.

[0045] Example 1

[0046] like Figure 1 and Figure 2 As shown, the drive device includes a housing 10, two sets of reducer assemblies 20, and two drive units 30. The housing 10 has a first receiving cavity 11. The two sets of reducer assemblies 20 are spaced apart within the first receiving cavity 11. The two drive units 30 are spaced apart on the housing 10, and each drive unit 30 has a drive shaft. Each set of reducer assemblies 20 includes a transmission component and multiple sequentially connected output shaft segments 22. The drive shaft is drivenly connected to the transmission component. Two adjacent output shaft segments 22 are connected by a connector 23, and the connection between the output shaft segment 22 and the connector 23 is a clearance fit. The transmission component is sleeved on the outer periphery of the output shaft segment 22 closest to the drive unit 30, and the output shaft segment 22 furthest from the drive unit 30 extends out of the first receiving cavity 11.

[0047] By configuring each reducer assembly 20 into a structure including a transmission component and multiple sequentially connected output shaft segments 22, and connecting adjacent output shaft segments 22 with a connector 23, the connection between the output shaft segment 22 and the connector 23 adopts a clearance fit. Furthermore, the output shaft segment 22 furthest from the drive unit 30 extends out of the first receiving cavity 11 and is used to connect to the wheelset. This clearance fit between the output shaft segment 22 and the connector 23 allows for relative movement, effectively absorbing impact when the wheelset is subjected to external force, protecting the transmission component from direct damage, effectively reducing the direct impact on the transmission component when the wheelset is subjected to external force, improving the stability and durability of the transmission component, ensuring the transmission reliability and smoothness between the drive shaft and the transmission component, significantly improving the performance and service life of the golf bag cart, and providing users with a more reliable and efficient user experience.

[0048] It should be noted that in this application, two sets of reducer assemblies 20 are symmetrically arranged in the first receiving cavity 11; and two drive units 30 are symmetrically arranged on the housing 10.

[0049] It should be noted that in this application, the drive shaft includes a drive worm 31; the transmission component includes a worm gear structure 21, and the drive worm 31 is drivenly connected to the worm gear structure 21. Thus, through the meshing of the drive worm 31 and the worm gear structure 21, efficient power transmission from the drive unit 30 to the reducer assembly 20 is achieved, effectively improving transmission efficiency and reducing energy loss. Especially in applications requiring high torque output, such as the drive system of a golf cart, this ensures stable vehicle operation on various terrains.

[0050] It should be noted that in this application, the output shaft segment 22 and the connecting member 23 have a concave-convex fit. This fit ensures a stable connection between the output shaft segment 22 and the connecting member 23. Simultaneously, the clearance fit of the concave-convex structure absorbs external impacts, protecting the worm gear structure 21. This improves the connection stability between the output shaft segment 22 and the connecting member 23, and also enhances the durability of the reducer assembly 20. Especially in the drive systems of equipment such as golf carts, it can adapt to various complex operating environments, ensuring long-term stable operation of the equipment.

[0051] like Figure 2As shown, both axial ends of the connector 23 have first mounting grooves 231, and the axial end of the output shaft segment 22 facing the connector 23 has a first mounting protrusion 221 for insertion and engagement with the first mounting grooves 231. Thus, through the insertion and engagement of the first mounting grooves 231 and the first mounting protrusion 221, rapid assembly and disassembly of the output shaft segment 22 and the connector 23 are achieved, while ensuring the reliability of the connection between the two. This effectively simplifies the assembly process and improves production efficiency. Especially in the assembly of the drive unit of a golf cart, it can significantly reduce assembly time and lower production costs.

[0052] like Figure 2 As shown, the first mounting groove 231 extends radially along the connector 23, and the two first mounting grooves 231 at both ends of the axial direction of the same connector 23 have an included angle. In this way, by setting the included angle, the connection stability between the output shaft section 22 and the connector 23 is ensured, while allowing a certain degree of relative movement, absorbing external impact, and effectively improving the stability of the connection and the impact resistance of the reducer assembly 20. Especially in the drive device of equipment such as golf carts, it can effectively cope with external impacts in various operating environments and ensure stable operation of the equipment.

[0053] like Figure 6 As shown, both axial ends of the connector 23 have first mounting grooves 231, and the axial end of the output shaft segment 22 facing the connector 23 has a first mounting protrusion 221 for insertion and mating with the first mounting grooves 231. The groove width W of the first mounting groove 231 ranges from 3.5 to 4.5 mm; and / or, the groove length L of the first mounting groove 231 ranges from 12 to 18 mm. At least in the length direction of the first mounting groove 231, the first mounting groove 231 and the first mounting protrusion 221 are provided with a gap. In this way, by precisely controlling the groove width W and groove length L of the first mounting groove 231, the fitting accuracy between the output shaft segment 22 and the connector 23 is ensured. At the same time, by setting a gap, a certain degree of elastic deformation is allowed to absorb external impact, effectively improving the connection accuracy and the impact resistance of the reducer assembly 20. Especially in the drive device of equipment such as golf carts, it can effectively cope with external impacts in various operating environments and extend the service life of the equipment.

[0054] like Figure 2As shown, the axial end face of the connector 23 has a pair of weight-reducing holes 232, which are symmetrically arranged on both sides of the width direction of the first mounting groove 231. Thus, by providing weight-reducing holes 232 on the connector 23, not only is the weight of the connector 23 reduced, but the overall structure of the connector 23 is also optimized, improving the overall energy efficiency of the reducer assembly 20. This effectively reduces the weight of the reducer assembly 20 and improves its energy efficiency, especially in equipment requiring lightweight design, such as golf carts, significantly improving the portability and energy efficiency ratio of the equipment.

[0055] like Figure 2 As shown, the outer periphery of the output shaft section 22 near the drive unit 30 has a first anti-rotation protrusion, and the inner periphery of the worm gear structure 21 has a first anti-rotation groove for engaging with the first anti-rotation protrusion.

[0056] Specifically, in this embodiment, the first anti-rotation protrusion is a spline 222, and the first anti-rotation groove is a spline groove 211. Thus, the cooperation between the spline 222 and the spline groove 211 ensures a stable connection between the output shaft section 22 and the worm gear structure 21, preventing relative rotation during transmission and effectively improving the stability and reliability of the transmission system. Especially in the drive systems of equipment such as golf carts, it ensures the stability of the worm gear structure 21 during high-speed transmission, improving equipment performance.

[0057] It should be noted that in this application, the connector 23 is made of plastic. By using plastic as the material for the connector 23, not only is its weight reduced, but the elastic properties of plastic are also utilized to further improve its buffering capacity when subjected to external impacts. This effectively reduces the weight of the reducer assembly 20 and improves its impact resistance. Especially in the drive systems of equipment such as golf carts, it can effectively cope with external impacts under various operating environments, extending the service life of the equipment.

[0058] Of course, the connector 23 can also be made of metal. In this way, by using metal as the connector 23, the overall structural rigidity of the connector 23 can be ensured, while also ensuring the reliability and smoothness of power transmission between two adjacent output shaft sections 22. Especially in the drive unit of equipment such as golf bag carts, it can effectively cope with external impacts in various operating environments and ensure the smoothness of the golf bag cart's ride.

[0059] like Figure 2As shown, the worm gear structure 21 includes a worm gear body 212 and stop rings 213. The stop rings 213 are arranged in pairs at both axial ends of the worm gear body 212. A first anti-rotation groove (i.e., spline groove 211) passes through the worm gear body 212 and the two stop rings 213. The stop rings 213 are used to abut against the inner ring of the bearing structure 50, which supports the output shaft section 22 of the worm gear structure 21. Thus, the engagement between the stop rings 213 and the bearing structure 50 ensures the axial positioning of the worm gear structure 21, preventing axial displacement during transmission and effectively improving the stability and reliability of the transmission system. Especially in the drive devices of equipment such as golf carts, it ensures the stability of the worm gear structure 21 during high-speed transmission, improving equipment performance.

[0060] like Figure 7 As shown, the drive unit 30 includes a motor housing 32, which is connected to the housing 10. The motor housing 32 has a second receiving cavity. The first end of the drive worm 31 extends through the axial first cavity of the second receiving cavity and is drivenly connected to the worm gear structure 21. The second end of the drive worm 31 extends through the axial second cavity of the second receiving cavity. The drive device also includes a speed detection component 40, which is disposed on the motor housing 32 for detecting the speed of the drive worm 31. In this way, by placing the drive worm 31 within the second receiving cavity of the motor housing 32, an effective connection is achieved between the drive unit 30 and the reducer assembly 20. Simultaneously, the protrusion of both ends of the drive worm 31 facilitates connection with external structures, effectively improving the integration and flexibility of the drive unit. This is particularly advantageous in drive units for equipment such as golf carts, enabling a compact structural design while facilitating connection with other vehicle components. Furthermore, by incorporating the speed detection component 40, real-time monitoring of the drive worm 31's speed is achieved, providing data support for intelligent control of the drive unit. This effectively enhances the intelligence level of the drive unit and improves control precision. Especially in drive units for equipment such as golf carts, it enables precise speed control, improving driving experience and safety.

[0061] like Figure 7As shown, the speed detection component 40 includes a magnetic ring 41, a main control board 42, and a magnetic encoder 43. The magnetic ring 41 is disposed at the end of the second end of the drive worm gear 31. The main control board 42 is supported on the motor housing 32 and is positioned opposite to the magnetic ring 41. The magnetic encoder 43 is disposed on the surface of the main control board 42 facing the magnetic ring 41 and is positioned opposite to the magnetic ring 41, for real-time detection of the speed of the drive worm gear 31 via the magnetic ring 41. Thus, through the cooperation of the magnetic ring 41 and the magnetic encoder 43, real-time, non-contact detection of the speed of the drive worm gear 31 is achieved, improving the accuracy and reliability of the detection. This is particularly useful in the drive systems of equipment such as golf carts, enabling real-time monitoring of vehicle speed and providing precise data support for intelligent control.

[0062] Example 2

[0063] It should be noted that the difference between this embodiment and Embodiment 1 is that, as shown in the following... Figure 3 As shown, the worm gear structure 21 includes a worm gear body 212, with a first anti-rotation groove (i.e., spline groove 211) penetrating the worm gear body 212. The reducer assembly 20 also includes retaining ring structures 24, which are paired and sleeved on the output shaft section 22, respectively located on both axial sides of the worm gear body 212. The two retaining ring structures 24 are respectively used to abut against the inner ring of the bearing structure 50 supporting the output shaft section 22 on which the worm gear structure 21 is sleeved. In this way, the cooperation between the retaining ring structure 24 and the bearing structure 50 further enhances the axial positioning of the worm gear structure 21, preventing axial displacement during transmission. At the same time, it simplifies the assembly process, effectively improving the stability and reliability of the transmission system. The simplified assembly process, especially in the drive device of equipment such as golf bag carts, can ensure the stability of the worm gear structure 21 during high-speed transmission, improve the performance of the equipment, and reduce production costs.

[0064] Example 3

[0065] It should be noted that the difference between this embodiment and Embodiment 1 is that, as shown in the following... Figure 4 As shown, both axial ends of the connector 23 have second mounting protrusions 233, and the axial end of the output shaft segment 22 facing the connector 23 has a second mounting groove 223 for interlocking with the second mounting protrusions 233. Thus, through the interlocking of the second mounting groove 223 with the second mounting protrusions 233, rapid assembly and disassembly of the output shaft segment 22 and the connector 23 are achieved, while ensuring the reliability of the connection between the two. This effectively simplifies the assembly process and improves production efficiency. Especially in the assembly of the drive unit of a golf cart, it can significantly reduce assembly time and lower production costs.

[0066] like Figure 4As shown, the second mounting protrusion 233 extends radially along the connector 23, and the two second mounting protrusions 233 at both ends of the axial direction of the same connector 23 have an included angle. In this way, by setting the included angle, the connection stability between the output shaft section 22 and the connector 23 is ensured, while allowing a certain degree of relative movement, absorbing external impact, and effectively improving the stability of the connection and the impact resistance of the reducer assembly 20. Especially in the drive device of equipment such as golf carts, it can effectively cope with external impacts in various operating environments and ensure stable operation of the equipment.

[0067] Example 4

[0068] It should be noted that the difference between this embodiment and Embodiment 1 is that, as shown in the following... Figure 5 As shown, the connector 23 has a third mounting protrusion 234 and a third mounting groove at its two axial ends, respectively. The axial end of the first output shaft segment 22 facing the connector 23 has a fourth mounting groove for interlocking with the third mounting protrusion 234, and the axial end of the second output shaft segment 22 facing the connector 23 has a fourth mounting protrusion 224 for interlocking with the third mounting groove. Thus, through the interlocking of the third mounting protrusion 234 with the fourth mounting groove, and the interlocking of the third mounting groove with the fourth mounting protrusion 224, rapid assembly and disassembly of the output shaft segment 22 and the connector 23 are achieved, while ensuring the reliability of the connection between them. This effectively simplifies the assembly process and improves production efficiency. Especially in the assembly of the drive unit of a golf cart, it can significantly reduce assembly time and lower production costs.

[0069] like Figure 5 As shown, the third mounting protrusion 234 extends radially along one end of the axial direction of the connector 23, and the third mounting groove extends radially along the other end of the axial direction of the connector 23, with an angle between the extending directions of the third mounting protrusion 234 and the third mounting groove. This angle ensures the connection stability between the output shaft section 22 and the connector 23, while allowing a certain degree of relative movement, absorbing external impacts, and effectively improving the connection stability and the impact resistance of the reducer assembly 20. Especially in the drive units of equipment such as golf carts, it can effectively cope with external impacts under various operating environments, ensuring stable equipment operation.

[0070] Example 6

[0071] It should be noted that, in one embodiment of this application (not shown), the output shaft section 22 near the drive unit 30 has a shaped anti-rotation shaft section, and the worm gear structure 21 has a shaped anti-rotation hole for cooperating with the shaped anti-rotation shaft section.

[0072] Optionally, the irregularly shaped anti-rotor shaft segment can be an anti-rotor shaft segment with a square cross-section. Correspondingly, the irregularly shaped anti-rotation hole is a square hole that matches the square shape. Of course, other irregularly shaped anti-rotor shaft segments and irregularly shaped anti-rotation holes that can prevent rotation can also be used, which will not be elaborated here.

[0073] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0074] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0075] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0076] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0077] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0078] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A driving device, characterized in that, include: A housing (10) having a first receiving cavity (11); Two sets of reducer assemblies (20) are spaced apart within the first receiving cavity (11); Two drive units (30) are spaced apart on the housing (10), and each drive unit (30) has a drive shaft; Each group of the reducer assembly (20) includes: A transmission component, wherein the drive shaft is drivenly connected to the transmission component; Multiple sequentially connected output shaft segments (22), two adjacent output shaft segments (22) are connected by a connector (23), and the connection between the output shaft segment (22) and the connector (23) is a clearance fit; The transmission component is sleeved on the outer periphery of the output shaft segment (22) near the drive unit (30) among the plurality of output shaft segments (22), and the output shaft segment (22) away from the drive unit (30) among the plurality of output shaft segments (22) is disposed through the first receiving cavity (11).

2. The driving device according to claim 1, characterized in that, The drive shaft includes a drive worm gear (31); The transmission component includes a worm gear structure (21), and the driving worm (31) is drivenly connected to the worm gear structure (21).

3. The driving device according to claim 1, characterized in that, The output shaft segment (22) and the connector (23) are in a concave-convex fit.

4. The driving device according to claim 3, characterized in that, The connector (23) has a first mounting groove (231) at both axial ends, and the output shaft segment (22) has a first mounting protrusion (221) at the axial end facing the connector (23) for insertion and engagement with the first mounting groove (231); or, The connector (23) has a second mounting protrusion (233) at both axial ends, and the axial end of the output shaft segment (22) facing the connector (23) has a second mounting groove (223) for inserting and engaging with the second mounting protrusion (233); or, The connector (23) has a third mounting protrusion (234) and a third mounting groove at its two axial ends, respectively. The first output shaft segment (22) has a fourth mounting groove at its axial end facing the connector (23) for insertion and engagement with the third mounting protrusion (234). The second output shaft segment (22) has a fourth mounting protrusion (224) at its axial end facing the connector (23) for insertion and engagement with the third mounting groove.

5. The driving device according to claim 4, characterized in that, The first mounting groove (231) extends radially along the connector (23), and the extending directions of the two first mounting grooves (231) at both axial ends of the same connector (23) have an included angle; or, The second mounting protrusion (233) extends radially along the connector (23), and the extending directions of the two second mounting protrusions (233) at both axial ends of the same connector (23) form an included angle; or, The third mounting protrusion (234) extends radially along one end of the axial direction of the connector (23), and the third mounting groove extends radially along the other end of the axial direction of the connector (23), with the extension direction of the third mounting protrusion (234) and the extension direction of the third mounting groove having an angle.

6. The driving device according to claim 3, characterized in that, Both ends of the connector (23) have a first mounting groove (231), and the axial end of the output shaft section (22) facing the connector (23) has a first mounting protrusion (221) for inserting and engaging with the first mounting groove (231). The groove width W of the first assembly groove (231) ranges from 3.5 to 4.5 mm; and / or, The groove length L of the first assembly groove (231) is in the range of 12 to 18 mm; At least along the length of the first mounting groove (231), the first mounting groove (231) and the first mounting protrusion (221) are disposed with a gap.

7. The driving device according to claim 6, characterized in that, The connector (23) has a pair of weight-reducing holes (232) at its axial end face, and the pair of weight-reducing holes (232) are symmetrically arranged on both sides of the width direction of the first assembly groove (231).

8. The driving device according to claim 2, characterized in that, The outer periphery of the output shaft segment (22) near the drive unit (30) has a first anti-rotation protrusion, and the inner periphery of the worm gear structure (21) has a first anti-rotation groove for engaging with the first anti-rotation protrusion; or, The output shaft section (22) near the drive unit (30) has a shaped anti-rotation shaft section, and the worm gear structure (21) has a shaped anti-rotation hole for cooperating with the shaped anti-rotation shaft section.

9. The driving device according to claim 8, characterized in that, The worm gear structure (21) includes: Worm gear body (212); A stop ring (213) is provided in pairs at both ends of the axial direction of the worm gear body (212). The first anti-rotation groove passes through the worm gear body (212) and the two stop rings (213). The stop ring (213) is used to abut against the inner ring of the bearing structure (50) that supports the output shaft section (22) of the worm gear structure (21); or, The worm gear structure (21) includes: The worm gear body (212) has the first anti-rotation groove penetrating the worm gear body (212); The reducer assembly (20) also includes: The retaining ring structure (24) is sleeved in pairs on the output shaft section (22) and located on both sides of the axial direction of the worm gear body (212). The two retaining ring structures (24) are respectively used to abut against the inner ring of the bearing structure (50) of the output shaft section (22) on which the worm gear structure (21) is sleeved.

10. The driving device according to claim 2, characterized in that, The drive unit (30) includes: Motor housing (32), the motor housing (32) is connected to the housing (10), the motor housing (32) has a second receiving cavity, the first end of the drive worm (31) extends out of the axial first cavity of the second receiving cavity and is drivenly connected to the worm gear structure (21), and the second end of the drive worm (31) extends out of the axial second cavity of the second receiving cavity; The drive device further includes: A speed detection component (40) is disposed on the motor housing (32) for detecting the speed of the drive worm (31).

11. The driving device according to claim 10, characterized in that, The rotational speed detection component (40) includes: A magnetic ring (41) is disposed at the end of the second end of the drive worm (31); The main control board (42) is supported on the motor housing (32) and is disposed opposite to the magnetic ring (41); A magnetic encoder (43) is disposed on the surface of the main control board (42) facing the magnetic ring (41) and is disposed opposite to the magnetic ring (41) to detect the rotational speed of the drive worm (31) in real time through the magnetic ring (41).

12. A golf bag cart, characterized in that, Includes a drive device, wherein the drive device is the drive device according to any one of claims 1 to 11.

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