Compact transmission front axle
By using bearing bushes and bearing assemblies in the front axle of the transmission, sliding friction is transformed into rolling friction, solving the problems of poor lubrication and insufficient sealing, reducing frictional resistance and wear, and improving the stability and durability of the transmission system.
Patent Information
- Application Number
- CN202520388237.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-03-07
AI Technical Summary
The existing front axle suffers from poor lubrication, insufficient sealing, and inadequate shock absorption during high-speed rotation, leading to increased gear wear and vibration impact, which affects vehicle stability.
By using bearing bushes and bearing assemblies to provide a lubricating film, sliding friction is transformed into rolling friction. Combined with locking sleeves and oil seal rings, this ensures stable transmission and lubrication of the bevel gears, reducing wear and vibration.
It effectively reduces frictional resistance and wear, improves transmission stability, reduces failures caused by loose parts, and ensures the reliability and durability of the transmission system.
Smart Images

Figure CN223686264U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of front axle transmission technology, specifically relating to a compact front axle transmission. Background Technology
[0002] The front axle plays a crucial role in the automotive drivetrain, primarily connecting the chassis to the front wheels and transmitting forces in all directions, along with the resulting bending moments and torques. Here is a detailed analysis of the front axle: Definition: The front axle is an important component of the automotive drivetrain, also known as the steering axle, and is typically located at the front of the vehicle. It not only connects the chassis to the front wheels but also transmits steering forces, enabling the vehicle's steering function. Force Transmission: The front axle transmits forces in all directions between the chassis and the front wheels, including vertical loads, rolling resistance, driving force, braking force, and lateral forces. Steering Function: Connected to the steering system via the steering knuckles, the front axle transmits the steering force output from the steering gear to the wheels, thus achieving vehicle steering. Support Function: The front axle also supports the sprung mass at the front of the vehicle, ensuring vehicle stability.
[0003] Existing front axles often employ multiple bearings and oil seals for sealing and drag reduction due to constraints and installation requirements of the driving and driven bevel gears. However, during high-speed rotation, insufficient drag reduction can lead to problems such as poor lubrication. If the lubrication system of the front axle is poorly designed or improperly maintained, resulting in insufficient or poor-quality lubricating oil, the gears will not receive adequate lubrication during operation, increasing friction and wear. Surface roughness also affects the frictional performance of the gears. Excessive surface roughness increases the coefficient of friction, leading to accelerated wear. Sealing is also a concern. Performance: The sealing performance of the front axle is crucial to preventing external impurities from entering the gear meshing area. If the seal is not tight, impurities such as dust and hard particles in the air will enter the gear meshing area, aggravating wear. Inadequate shock absorption has the following effects: Vibration and impact: During operation, the front axle will generate vibration and impact due to various factors. If the shock absorption measures are inadequate, these vibrations and impacts will directly act on the gears, leading to fatigue damage and accelerated wear. Imbalance: If there is an imbalance in the design or installation of the front axle, it will cause the gears to generate additional vibration and load during operation, thereby aggravating wear. Utility Model Content
[0004] The purpose of this invention is to provide a compact drive front axle, which aims to solve the problems raised in the background art.
[0005] Compact drive front axle, including,
[0006] The box body and the box cover are fixedly connected by bolts;
[0007] The drag-reducing transmission assembly is arranged in the interior of the box body, wherein: the drag-reducing transmission assembly comprises a driven fork, a driven bevel gear, a driving bevel gear, a fixing bolt, a gasket, an output bearing, a snap ring, a bearing bush, an input bearing, a locking sleeve and an oil seal ring, the driven bevel gear rotates in the interior of the box body, the driven bevel gear and the driving bevel gear are in meshing transmission connection, the oil seal ring is arranged on the outer wall of one end of the driven fork, the locking sleeve is arranged on the outer wall of the oil seal ring, the gasket is arranged on the outer wall of one end of the fixing bolt, the fixing bolt is threadedly connected to the inner wall of one end of the driving bevel gear, the fixing bolt is embedded in the inner wall of the driven fork, the input bearing is arranged on the outer wall of the driving bevel gear, the input bearing is embedded in the interior of the box body, the bearing bush is arranged on the outer wall of one end of the driven bevel gear and the driving bevel gear, the bearing bush is embedded in the slotted inner wall of the box body, the output bearing is arranged on the outer wall of one end of the driven bevel gear, the snap ring is arranged on the slotted end of the driven bevel gear, and the snap ring and the output bearing are matched with each other.
[0008] Further, the inner wall of the driven fork is embedded with a cross shaft.
[0009] Further, the outer wall of the cross shaft is sleeved with a driving fork.
[0010] Further, the inner wall of one end of the driving fork is provided with a spline groove.
[0011] Further, the inner wall of one end of the driven bevel gear is provided with a spline groove.
[0012] Further, the inner wall of the box cover is embedded with an oil seal ring, one side of the outer wall of the oil seal ring is attached to the outer wall of one end of the driven bevel gear, and the outer wall of one side of the box body is provided with an air bag pipe in communication.
[0013] Compared with the prior art, the drag-reducing transmission assembly has the advantages that:
[0014] The drag-reducing transmission assembly uses a bearing bush, which provides a layer of lubricating film to reduce friction and wear, and at the same time supports and positions the bevel gear, the bearing converts sliding friction into rolling friction through the rolling body in its interior, thereby greatly reducing friction resistance and wear, the locking sleeve can be used to fix the bearing on the shaft to prevent axial movement or rotation during work, the locking sleeve is matched with the corresponding part on the shaft through the thread or locking mechanism in its interior, so as to achieve the fastening effect, and the failure and wear caused by loose parts are also reduced. BRIEF DESCRIPTION OF DRAWINGS
[0015] The accompanying drawings are used to provide further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation to the present application. In the drawings:
[0016] Fig. 1 It is a perspective view of the present application;
[0017] Fig. 2 It is a partial half-section perspective view of the present application;
[0018] Fig. 3 It is a perspective view of the vortex fan of the present application.
[0019] In the drawings: 1, outer shell; 2, partition; 3, vortex fan; 4, guide plate; 5, release frame; 6, conveying pipe; 7, booster pump; 8, first driving gear; 9, first driven gear; 10, mixing motor; 11, second driving gear; 12, second driven gear; 13, booster pipe; 14, stirring motor; 101, balance valve; 102, discharge pipe; 103, sealing cover. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.
[0021] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation to the present application. In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance.
[0022] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0023] Please refer to Figs. 1-3 The technical scheme provided by the embodiment is as follows:
[0024] The compact drive front axle comprises,
[0025] The box body 1 and the box cover 2 are fixedly connected through bolts.
[0026] The drag reduction transmission assembly is arranged in the interior of the box body 1, wherein the drag reduction transmission assembly comprises a driven fork 3, a driven bevel gear 8, a driving bevel gear 9, a fixing bolt 10, a gasket 11, an output bearing 12, a snap ring 13, a bearing bush 14, an input bearing 15, a locking sleeve 16 and an oil seal ring 17, the driven bevel gear 8 rotates in the interior of the box body 1, the driven bevel gear 8 and the driving bevel gear 9 are in meshing transmission connection, the oil seal ring 17 is arranged on one end of the outer wall of the driven fork 3, the locking sleeve 16 is arranged on the outer wall of the oil seal ring 17, the gasket 11 is arranged on one end of the outer wall of the fixing bolt 10, the fixing bolt 10 is threadedly connected to one end of the inner wall of the driving bevel gear 9, the fixing bolt 10 is embedded in the inner wall of the driven fork 3, the input bearing 15 is arranged on the outer wall of the driving bevel gear 9, the input bearing 15 is embedded in the interior of the box body 1, the bearing bush 14 is arranged on one end of the outer wall of the driven bevel gear 8 and the driving bevel gear 9, the bearing bush 14 is embedded in the slotted inner wall of the box body 1, the output bearing 12 is arranged on one end of the outer wall of the driven bevel gear 8, the snap ring 13 is arranged on one end of the slotted outer wall of the driven bevel gear 8, and the snap ring 13 and the output bearing 12 are matched with each other.
[0027] In the embodiment of the utility model, the friction reduction transmission assembly uses bearing bush 14, they can be selected for specific working conditions or cost considerations, bearing bush 14 reduces friction and wear by providing a layer of lubricating film, and simultaneously supports and positions the bevel gear, the bearing converts sliding friction into rolling friction through the rolling body inside it, thereby greatly reducing friction resistance and wear, locking sleeve 16 can be used to fix the bearing on the shaft to prevent axial movement or rotation during work, locking sleeve 16 is matched with the corresponding part on the shaft through the thread or locking mechanism inside it, realizes the fastening effect, also reduces the failure and wear caused by loose parts, the input of power is completed by using driving fork 5 and the internal spline groove, cross shaft 4 and driven fork 3 drive driving bevel gear 9 to rotate, fixed bolt 10 and washer 11 are used to realize the stable fixation of driven fork 3 and driven bevel gear 8, locking sleeve 16 is matched with the corresponding part on the shaft through the thread or locking mechanism inside it, realizes the fastening effect, also reduces the failure and wear caused by loose parts, then input bearing 15 and oil seal ring 17 are used for further friction reduction, finally, driving bevel gear 9 meshes with driven bevel gear 8 in lubrication and drives, the external power output is realized through the spline groove on driven bevel gear 8, oil seal ring 6 and snap ring 13 are used to stably limit and oil seal driven bevel gear 8.
[0028] Specifically, the inner wall of the driven fork 3 is embedded with the cross shaft 4.
[0029] In the embodiment of the utility model, the cross shaft 4 can ensure the stability of transmission.
[0030] Specifically, the outer wall of the cross shaft 4 is sleeved with the driving fork 5.
[0031] In the embodiment of the utility model, the driving fork 5 can facilitate transmission.
[0032] Specifically, the inner wall of one end of the driving fork 5 is provided with a spline groove.
[0033] In the embodiment of the utility model, the inner wall of one end of the driving fork 5 is provided with a spline groove, which can facilitate transmission.
[0034] Specifically, the inner wall of one end of the driven bevel gear 8 is provided with a spline groove.
[0035] In the embodiment of the utility model, the inner wall of one end of the driven bevel gear 8 is provided with a spline groove, which can facilitate power transmission.
[0036] Specifically, the inner wall of the box cover 2 is embedded with the oil seal ring 6, and the outer wall of the oil seal ring 6 is attached to the outer wall of one end of the driven bevel gear 8, and the outer wall of the box body 1 is provided with the air bag pipe 7.
[0037] In the embodiment of the utility model, the outer wall of the box 1 is provided with an air bag pipe 7 at one side of the opening, which can ensure stable air pressure balance.
[0038] Working principle:
[0039] The drag reduction transmission assembly uses bushings 14, which may be selected for specific operating conditions or cost considerations, the bushings 14 reduce friction and wear by providing a layer of lubricating film, while supporting and positioning the bevel gear, the bearing converts sliding friction to rolling friction through its internal rolling elements, thereby greatly reducing friction resistance and wear, the locking sleeve 16 may be used to fix the bearing on the shaft to prevent axial movement or rotation during operation, the locking sleeve 16 is matched with the corresponding part on the shaft through the internal thread or locking mechanism, achieving the fastening effect, also reducing the failure and wear caused by loose parts, the input power is completed by using the driving fork 5 and the internal spline groove, the driving bevel gear 9 is rotated by using the cross shaft 4 and the driven fork 3, the driven fork 3 and the driven bevel gear 8 are stably fixed by using the fixing bolt 10 and the washer 11, the locking sleeve 16 is matched with the corresponding part on the shaft through the internal thread or locking mechanism, achieving the fastening effect, also reducing the failure and wear caused by loose parts, then the input bearing 15 and the oil seal ring 17 are used for further drag reduction, finally the driving bevel gear 9 meshes with the driven bevel gear 8 in lubrication, the external power output is realized through the spline groove on the driven bevel gear 8, the driven bevel gear 8 is stably limited and sealed by the oil seal ring 6 and the snap ring 13.
[0040] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement etc. within the spirit and principle of the utility model, should be included in the protection scope of the utility model.
Claims
1. A compact drive front axle characterized in that, The utility model relates to a kind of box and box cover, the box (1) and box cover (2) are connected by bolt fixation; Resistance reduction drive assembly is located at the inside of box (1), wherein: the resistance reduction drive assembly includes driven fork (3), driven bevel gear (8), driving bevel gear (9), fixed bolt (10), washer (11), output bearing (12), snap ring (13), bearing bush (14), input bearing (15), locking sleeve (16) and oil seal ring (17), the inside of driven bevel gear (8) rotates box (1), driven bevel gear (8) and driving bevel gear (9) are engaged transmission connection, the outer wall of one end of oil seal ring (17) is all set in the outer wall of driven fork (3), locking sleeve (16) is set in the outer wall of oil seal ring (17), washer (11) is set in the outer wall of one end of fixed bolt (10), fixed bolt (10) is threadedly connected in the inner wall of one end of driving bevel gear (9), fixed bolt (10) is embedded in the inner wall of driven fork (3), input bearing (15) is set in the outer wall of driving bevel gear (9), input bearing (15) is embedded in the inside of box (1), bearing bush (14) is set in the outer wall of one end of driven bevel gear (8) and driving bevel gear (9), bearing bush (14) is embedded in the inner wall slot of box (1), output bearing (12) is set in the outer wall of one end of driven bevel gear (8), snap ring (13) is set in the one end slot of driven bevel gear (8), snap ring (13) and output bearing (12) are matched with each other. The inner wall of driven fork (3) is embedded with cross shaft (4).
2. The compact drive front axle of claim 1, wherein, The outer wall of cross shaft (4) is sleeved with driving fork (5).
3. The compact drive front axle of claim 2, wherein, The inner wall of one end of driving fork (5) is provided with spline groove.
4. The compact drive front axle of claim 3, wherein, The inner wall of one end of driven bevel gear (8) is provided with spline groove.
5. The compact drive front axle of claim 4, wherein, The inner wall of box cover (2) is embedded with oil seal ring (6), and the outer wall of one side of oil seal ring (6) is attached to the outer wall of one end of driven bevel gear (8), and the opening of the outer wall of one side of box (1) is connected with air bag tube (7).
6. The compact drive front axle of claim 5, wherein,