Mechanical front axle motor with high torque output function
By designing a high-torque mechanical front axle motor, and using components such as bevel gears and wedge blocks to automatically determine vehicle speed, the four-wheel drive mode is prevented from switching at high speeds, thus solving the problem of inconsistent transmission when all-terrain vehicles are driving at high speeds, and improving driving safety and vehicle lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HAIWEI ELECTRICAL APPLIANCES CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-07-14
AI Technical Summary
Switching to four-wheel drive mode at high speeds on existing all-terrain vehicles can easily lead to a mismatch in power distribution between the front and rear axles, causing problems such as vehicle vibration, gear wear, and even drive shaft breakage.
A mechanical front axle motor with high torque output function was designed, including a judgment mechanism and a protection mechanism. Through components such as bevel gears, wedge blocks and eccentric wheels, the vehicle speed is automatically judged and the drive mode is prevented from switching when driving at high speed, avoiding transmission inconsistency. Components such as telescopic rods and springs ensure that the protection mechanism is triggered normally.
It effectively avoids transmission inconsistencies caused by drive mode switching when the vehicle is driving at high speed, improves driving safety, extends vehicle service life, and especially enhances the safety of novice drivers.
Smart Images
Figure CN224503095U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of front axle motor technology, specifically a mechanical front axle motor with high torque output function. Background Technology
[0002] All-terrain vehicles adapt to different road conditions and are usually equipped with a four-wheel drive structure. Their driving status can be switched between two-wheel drive and four-wheel drive according to road conditions. The driving functions of existing all-terrain vehicles are usually set to three states: two-wheel drive, four-wheel drive, and four-wheel drive lock. The switching between the three states is achieved by sliding the splined sleeve mounted on the half shaft and engaging with the half shaft gear.
[0003] In existing technology, some four-wheel drive vehicles need to switch to four-wheel drive mode when encountering muddy and slippery road sections to increase the overall grip of the vehicle. However, switching to four-wheel drive mode when the vehicle is traveling at high speed can easily cause a mismatch in the power distribution between the front and rear axles, resulting in body vibration. In severe cases, it can even lead to gear wear or even drive shaft breakage. Utility Model Content
[0004] This utility model addresses the problem of overly simplistic solutions in existing technologies by providing a significantly different solution. Specifically, the purpose of this utility model is to provide a mechanical front axle motor with high torque output to solve the problems mentioned in the background.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a mechanical front axle motor with high torque output function, comprising a front axle motor body and a housing, wherein a first transmission shaft is rotatably disposed inside the housing, a second transmission shaft is disposed on the side wall of the housing, a judgment mechanism is disposed on the first transmission shaft, a protection mechanism is disposed on the surface of the front axle motor body, a central shaft is disposed on the surface of the front axle motor body, a fan-shaped torsion plate is rotatably disposed on the surface of the front axle motor body, a torsion spring is fixedly disposed on the surface of the front axle motor body, a limit frame is fixedly disposed on the surface of the front axle motor body, three contact points are disposed on the front axle motor body, a limit groove is disposed on the limit frame, and a contact block is slidably disposed in the limit groove.
[0006] Preferably, the judging mechanism includes a first bevel gear, a second bevel gear, a first spring, a first rack, a U-shaped plate, a first rotating shaft, a mounting rod, an intermittent gear, and a first wedge block. The first bevel gear is fixedly sleeved on the first transmission shaft, the mounting rod is fixedly mounted on the housing, the U-shaped plate is slidably disposed through the inner wall of the mounting rod, the first rack is fixedly disposed at both ends of the U-shaped plate, the first rotating shaft is rotatably disposed on the mounting rod, the second bevel gear is fixedly disposed at one end of the first rotating shaft, the intermittent gear is fixedly disposed at the other end of the first rotating shaft, the first wedge block is fixedly disposed at the end of the first rack, and the first spring is fixedly disposed between the U-shaped plate and the fixed rod.
[0007] Preferably, the first bevel gear meshes with the second bevel gear, and the intermittent gear meshes with the first rack.
[0008] Preferably, the protection mechanism includes a protection component and an eccentric wheel, a planetary gear set, a worm gear, and a turbine. The eccentric wheel is rotatably mounted on the top of the front axle motor body. An adjustment motor is installed inside the front axle motor body. The planetary gear set is installed inside the front axle motor body and is driven by the output shaft of the adjustment motor. The worm gear is rotatably mounted inside the front axle motor body. The turbine gear is rotatably mounted inside the front axle motor body. The protection component is installed inside the front axle motor body.
[0009] Preferably, the protection assembly includes a telescopic rod, a second spring, a limiting strip, a tapered bearing, a U-shaped wedge rod, a fixing block, a second wedge block, a third spring, and a plug-in post. The telescopic rod is disposed at the end of the worm gear, and the telescopic rod is configured with a movable end and a fixed end. The movable end is fixedly connected to a gear in a planetary gear set. The telescopic rod is hollow inside. The second spring is disposed inside the telescopic rod. The limiting strip is fixedly disposed on the side wall of the fixed end. The tapered bearing is disposed at the movable end to limit rotation. The U-shaped wedge rod is plugged into the front axle motor body. The plug-in post is plugged into the front axle motor body. The third spring is sleeved on the outer wall of the plug-in post. The second wedge block is fixedly disposed at the top of the plug-in post. The fixing block is fixedly disposed on the side wall of the U-shaped wedge rod. The fixing block is fixedly connected to the bottom of the plug-in post.
[0010] Preferably, the U-shaped wedge rod is in contact with the tapered bearing.
[0011] Preferably, the fan-shaped torsion plate is provided with an eccentric groove, the eccentric wheel slides within the eccentric groove, the eccentric wheel is fixedly connected to the central shaft, and the central shaft is fixedly connected to the turbine.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] (1) By setting up a telescopic rod, a second spring, a limiting strip, a tapered bearing, a U-shaped wedge rod, a fixing block, a second wedge block, a third spring and a plug-in post, this utility model can prevent novice drivers from switching drive modes, which could lead to inconsistent front and rear transmissions, causing gear slippage, vehicle rollover and abnormal noise, or even drive shaft breakage. This ensures the driver's driving safety and improves the service life of the vehicle.
[0014] (2) This utility model achieves automatic judgment of vehicle speed by setting up a first bevel gear, a second bevel gear, a first spring, a first rack, a U-shaped plate, a first rotating shaft, a mounting rod, an intermittent gear and a first wedge block, which facilitates subsequent triggering of protection. It does not require a system or electrical control, avoids the inability to judge vehicle speed when the power system fails, and ensures that the protection mechanism can always be in a normal triggering state. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the judgment mechanism structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the protective mechanism structure of this utility model;
[0018] Figure 4 This is a cross-sectional view of the protective mechanism of this utility model;
[0019] Figure 5 This is a schematic diagram of the protective mechanism of this utility model.
[0020] Figure 6 This is a schematic diagram of the front axle motor body structure of this utility model.
[0021] In the diagram: 1. First drive shaft; 2. Front axle motor body; 3. Second drive shaft; 4. Judgment mechanism; 41. First bevel gear; 42. Second bevel gear; 43. First spring; 44. First rack; 45. U-shaped plate; 46. First rotating shaft; 47. Mounting rod; 48. Intermittent gear; 49. First wedge block; 51. Eccentric wheel; 52. Planetary gear set; 53. Worm gear; 54. Turbine; 61. Telescopic rod; 611. Second spring; 612. Limiting strip; 62. Conical bearing; 63. U-shaped wedge rod; 64. Fixing block; 65. Second wedge block; 66. Third spring; 67. Insertion post; 7. Torsion spring; 8. Housing; 9. Contact block; 10. Limiting frame; 11. Limiting groove; 12. Central shaft; 13. Sector-shaped torsion plate. Detailed Implementation
[0022] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figures 1-6 This utility model provides an embodiment of a mechanical front axle motor body with high torque output function, comprising a front axle motor body 2 and a housing 8. A first transmission shaft 1 is rotatably arranged inside the housing 8, and a second transmission shaft 3 is arranged on the side wall of the housing 8. A judgment mechanism 4 is arranged on the first transmission shaft 1. A protective mechanism is arranged on the surface of the front axle motor body 2. A central shaft 12 is arranged on the surface of the front axle motor body 2. A fan-shaped torsion plate 13 is rotatably arranged on the surface of the front axle motor body 2. A torsion spring 7 is fixedly arranged on the surface of the front axle motor body 2. A limit frame 10 is fixedly arranged on the surface of the front axle motor body 2. The front axle motor body 2 is provided with three contact points. A limit groove 11 is provided on the limit frame 10, and a contact block 9 is slidably arranged in the limit groove 11. First, the vehicle drive mode is adjusted by the front axle motor body 2. The front axle motor body 2 drives the fan-shaped torsion plate 13 to rotate, thereby causing the torsion spring 7 to deform. The torsion spring 7 drives the contact block 9 to move to the corresponding contact point, thus adjusting the vehicle drive mode. However, when the vehicle speed is greater than 40 kilometers per hour, the first drive shaft 1 drives the judgment mechanism 4 to drive synchronously. The judgment mechanism 4 drives the protection mechanism to work, so that the front axle motor body 2 cannot be driven internally. Thus, the fan-shaped torsion plate 13 is always kept in the middle front drive contact point position under the action of the torsion spring 7. This avoids the situation where the internal transmission gears of the vehicle wear or even the drive shaft breaks due to the vehicle speed switching too fast, thereby ensuring the safety of the vehicle, improving the safety of novice drivers, and indirectly increasing the service life of the vehicle.
[0024] Specifically, the judgment mechanism 4 includes a first bevel gear 41, a second bevel gear 42, a first spring 43, a first rack 44, a U-shaped plate 45, a first rotating shaft 46, a mounting rod 47, an intermittent gear 48, and a first wedge block 49. The first bevel gear 41 is fixedly sleeved on the first transmission shaft 1. The mounting rod 47 is fixedly mounted on the housing 8. The U-shaped plate 45 is slidably disposed through the inner wall of the mounting rod 47. The first rack 44 is fixedly disposed at both ends of the U-shaped plate 45. The first rotating shaft 46 is rotatably disposed on the mounting rod 47. The second bevel gear 42 is fixedly disposed at one end of the first rotating shaft 46. The intermittent gear 48 is fixedly disposed at the other end of the first rotating shaft 46. The first wedge block 49 is fixedly disposed at the end of the first rack 44. The first spring 43 is fixedly disposed between the U-shaped plate 45 and the fixed rod. The first drive shaft 1 drives the first bevel gear 41 to rotate, which in turn drives the second bevel gear 42 to rotate. The second bevel gear 42 then drives the first rotating shaft 46 and the intermittent gear 48 to rotate synchronously. When the vehicle speed reaches 40 kilometers per hour, the intermittent gear 48 drives the first rack 44 to move a certain distance. The movement of the first rack 44 then drives the U-shaped plate 45 and the first wedge block 49 to move synchronously. This achieves automatic judgment of the vehicle speed, which is convenient for subsequent protection triggering. It eliminates the need for a system and electronic control, avoids the inability to judge the vehicle speed in case of power system failure, and ensures that the protection mechanism can always be in a normal triggering state.
[0025] Specifically, the first bevel gear 41 meshes with the second bevel gear 42, and the intermittent gear 48 meshes with the first rack 44.
[0026] Specifically, the protection mechanism includes a protection component and an eccentric wheel 51, a planetary gear set 52, a worm gear 53, and a turbine 54. The eccentric wheel 51 is rotatably mounted on the top of the front axle motor body 2. An adjustment motor is installed inside the front axle motor body 2. The planetary gear set 52 is installed inside the front axle motor body 2 and is driven by the output shaft of the adjustment motor. The worm gear 53 is rotatably mounted inside the front axle motor body 2. The turbine 54 is rotatably mounted inside the front axle motor body 2. The protection component is installed inside the front axle motor body 2.
[0027] Specifically, the protection assembly includes a telescopic rod 61, a second spring 611, a limiting strip 612, a conical bearing 62, a U-shaped wedge rod 63, a fixing block 64, a second wedge block 65, a third spring 66, and a plug-in post 67. The telescopic rod 61 is located at the end of the worm gear and has a movable end and a fixed end. The movable end is fixedly connected to a gear in the planetary gear set 52. The telescopic rod 61 is hollow inside. The second spring 611 is located inside the telescopic rod 61. The limiting strip 612 is fixedly located on the side wall of the fixed end. The conical bearing 62 is located at the movable end for limiting rotation. The U-shaped wedge rod 63 is plugged into the front axle motor body 2. The plug-in post 67 is plugged into the front axle motor body 2. The third spring 66 is sleeved on the outer wall of the plug-in post 67. The second wedge block 65 is fixedly located at the top of the plug-in post 67. The fixing block 64 is fixedly located on the side wall of the U-shaped wedge rod 63 and is fixedly connected to the bottom of the plug-in post 67. The first wedge block 49 abuts against the second wedge block 65, causing the second wedge block 65 to move downwards. This causes the fixed block 64 and the U-shaped wedge rod 63 to move downwards. The U-shaped wedge rod 63 then abuts against the tapered bearing 62, causing the movable end of the telescopic rod 61 to retract. This causes the planetary gears fixedly connected to the telescopic rod 61 to move, disengaging them. Consequently, the worm gear 53 of the turbine 54 is not driven to rotate by the regulating motor, allowing the sector torsion plate 13 to reset under the action of the torsion spring 7. This ensures that the contact block 9 remains connected to the second-drive contact point, maintaining the second-drive mode. This prevents novice drivers from switching drive modes at high speeds, which could lead to inconsistent front and rear transmissions, causing gear slippage, vehicle rollover, abnormal noises, or even drive shaft breakage. This ensures driver safety and extends the vehicle's lifespan.
[0028] Specifically, the U-shaped wedge rod 63 is in contact with the tapered bearing 62.
[0029] Specifically, the fan-shaped torsion plate 13 is provided with an eccentric groove, the eccentric wheel 51 slides in the eccentric groove, the eccentric wheel 51 is fixedly connected to the central shaft 12, and the central shaft 12 is fixedly connected to the turbine 54.
[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A mechanical front axle motor with high torque output function, comprising a front axle motor body (2) and a housing (8), characterized in that: The housing (8) is rotatably provided with a first transmission shaft (1), the housing (8) is provided with a second transmission shaft (3) on its side wall, the first transmission shaft (1) is provided with a judgment mechanism (4), the front axle motor body (2) is provided with a protection mechanism, the front axle motor body (2) is provided with a central shaft (12), the front axle motor body (2) is rotatably provided with a fan-shaped torsion plate (13), the front axle motor body (2) is fixedly provided with a torsion spring (7), the front axle motor body (2) is fixedly provided with a limit frame (10), the front axle motor body (2) is provided with three contact points, the limit frame (10) is provided with a limit groove (11), and a contact block (9) is slidably provided in the limit groove (11).
2. A mechanical front axle motor with high torque output function according to claim 1, characterized in that: The judgment mechanism (4) includes a first bevel gear (41), a second bevel gear (42), a first spring (43), a first rack (44), a U-shaped plate (45), a first rotating shaft (46), a mounting rod (47), an intermittent gear (48), and a first wedge block (49). The first bevel gear (41) is fixedly sleeved on the first transmission shaft (1). The mounting rod (47) is fixedly mounted on the housing (8). The U-shaped plate (45) is slidably disposed through the inner wall of the mounting rod (47). The first rack (44) is fixedly disposed at both ends of the U-shaped plate (45). The first rotating shaft (46) is rotatably disposed on the mounting rod (47). The second bevel gear (42) is fixedly disposed at one end of the first rotating shaft (46). The intermittent gear (48) is fixedly disposed at the other end of the first rotating shaft (46). The first wedge block (49) is fixedly disposed at the end of the first rack (44). The first spring (43) is fixedly disposed between the U-shaped plate (45) and the fixed rod.
3. A mechanical front axle motor with high torque output function according to claim 2, characterized in that: The first bevel gear (41) meshes with the second bevel gear (42), and the intermittent gear (48) meshes with the first rack (44).
4. A mechanical front axle motor with high torque output function according to claim 1, characterized in that: The protection mechanism includes a protection component and an eccentric wheel (51), a planetary gear set (52), a worm (53), and a turbine (54). The eccentric wheel is rotatably mounted on the top of the front axle motor. An adjustment motor is installed inside the front axle motor. The planetary gear set (52) is installed inside the front axle motor body (2). The planetary gear set (52) is driven and cooperates with the output shaft of the adjustment motor. The worm (53) is rotatably mounted inside the front axle motor body (2). The turbine (54) is rotatably mounted inside the front axle motor body (2). The protection component is installed inside the front axle motor body (2).
5. A mechanical front axle motor with high torque output function according to claim 4, characterized in that: The protective assembly includes a telescopic rod (61), a second spring (611), a limiting strip (612), a tapered bearing (62), a U-shaped wedge rod (63), a fixing block (64), a second wedge block (65), a third spring (66), and a plug-in post (67). The telescopic rod (61) is located at the end of the worm gear. The telescopic rod (61) has a movable end and a fixed end. The movable end is fixedly connected to a gear in the planetary gear set (52). The telescopic rod (61) is hollow inside. The second spring (611) is located inside the telescopic rod (61). The limiting strip (612) is fixedly installed on the side wall of the fixed end, the tapered bearing (62) is limited to rotate on the movable end, the U-shaped wedge rod (63) is inserted into the front axle motor body (2), the plug-in post (67) is inserted into the front axle motor, the third spring (66) is sleeved on the outer wall of the plug-in post (67), the second wedge block (65) is fixedly installed on the top of the plug-in post (67), the fixing block (64) is fixedly installed on the side wall of the U-shaped wedge rod (63), and the fixing block (64) is fixedly connected to the bottom of the plug-in post (67).
6. A mechanical front axle motor with high torque output function according to claim 5, characterized in that: The U-shaped wedge rod (63) abuts against the tapered bearing (62).
7. A mechanical front axle motor with high torque output function according to claim 4, characterized in that: The fan-shaped twist plate (13) is provided with an eccentric groove, the eccentric wheel (51) slides in the eccentric groove, the eccentric wheel (51) is fixedly connected to the central shaft (12), and the central shaft (12) is fixedly connected to the turbine (54).