A small stamping wheel side front axle device applicable to severe working conditions

Abstract

This utility model discloses a small stamped wheel-side front axle device suitable for harsh working conditions, comprising: a front axle housing, a differential, a shaft column, a two-way hydraulic buffer cylinder, two adjusting screws, two transmission systems, two steering knuckle assemblies, two braking systems, and two wheel-side reducers. The transmission systems include: half-shafts, universal joints, and splined shafts. The braking systems include: flanges, calipers, and brake discs. This utility model provides a small stamped wheel-side front axle device suitable for harsh working conditions. It utilizes a hydraulic buffer device to actively absorb and dissipate impact energy through hydraulic damping, reducing the risk of wear and fatigue damage, thereby extending the service life of components. Furthermore, it reduces energy loss in the transmission system and improves transmission efficiency. This contributes to improving the reliability and stability of the vehicle under harsh working conditions, reducing failure rates and downtime.

Description

Technical Field

[0001] This utility model relates to the field of wheel-side front axle technology, specifically to a small stamped wheel-side front axle device suitable for harsh working conditions. Background Technology

[0002] The stamped wheel-side front axle is a type of front axle that combines stamping technology with wheel-side axle design. It is used in specific vehicle models. The compact structure of the stamped wheel-side front axle optimizes the vehicle layout, and the gear transmission system of the wheel-side axle reduces transmission complexity and improves power transmission efficiency.

[0003] Existing wheel-side front axles lack active damping devices. Under harsh operating conditions, vehicles frequently encounter complex road surfaces such as bumps and potholes. In these situations, the impact from the road surface is directly transmitted to the axle, leading to significantly increased mechanical vibration and more intense friction and collision between components, thus accelerating the wear process. Vibration and impact also affect the axle's transmission efficiency. Under harsh conditions, components such as gears in the transmission system may loosen or misalign due to vibration, resulting in decreased transmission efficiency. This not only increases vehicle energy consumption but may also affect the vehicle's power performance and driving stability. Such vibration can cause fatigue damage to precision components such as gears and bearings inside the axle, shortening their service life. Utility Model Content

[0004] The purpose of this invention is to provide a small stamped wheel-side front axle device suitable for harsh working conditions. It utilizes a hydraulic buffer device to actively absorb and dissipate impact energy. Under harsh working conditions, by absorbing and mitigating external impact forces, it can effectively reduce mechanical vibration, lower the risk of wear and fatigue damage, thereby extending the service life of components. It also reduces energy loss in the transmission system and improves transmission efficiency. This helps to improve the reliability and stability of vehicles under harsh working conditions, reduce failure rates and downtime, and solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a small stamped wheel-side front axle device suitable for harsh working conditions, characterized in that it includes: a front axle housing, a differential, a shaft column, a two-way buffer hydraulic cylinder, two adjusting components, two transmission systems, two steering knuckle assemblies, two braking systems, and two wheel-side reducers. The adjusting components include a first U-shaped component, an adjusting screw, a threaded sleeve, and a second U-shaped component. The transmission systems include: a front half-shaft, a universal joint, a rear half-shaft, bearings, and a splined shaft. The braking systems include: a flange, a caliper, and a brake disc. The bidirectional buffer hydraulic cylinder is fixedly mounted on the front axle housing by screws. The first U-shaped component is hinged to the output shaft of the bidirectional buffer hydraulic cylinder. The adjusting screw is welded to one side of the first U-shaped component. The threaded sleeve is threadedly connected to the adjusting screw. The second U-shaped component is welded to the threaded sleeve. The front half-shaft is located inside the front axle housing. One end of the front half-shaft meshes with the gear of the differential. The universal joint is fixedly mounted on the ends of the front half-shaft and the rear half-shaft that are close to each other. The inner ring of the bearing is fixedly sleeved on the rear half-shaft. The splined shaft is fixedly mounted on the bearing.

[0006] Furthermore, the differential is fixedly mounted on the front axle housing with screws.

[0007] Furthermore, the axle column is welded to the front axle housing.

[0008] Furthermore, the two steering knuckle assemblies are respectively fixedly mounted on both ends of the front axle housing by screws.

[0009] Furthermore, the flange is fixedly mounted on the steering knuckle assembly with screws, and the caliper is fixedly mounted on the flange with screws.

[0010] Furthermore, the brake disc is rotatably mounted on a splined shaft.

[0011] Furthermore, the wheel-side reducer is fixedly mounted on the brake disc with screws, and the wheel-side reducer is connected to one end of the rear half-shaft.

[0012] This invention features a bidirectional hydraulic cylinder, which achieves high-speed and precise displacement control via an electro-hydraulic servo valve. It is suitable for working conditions requiring frequent reversals or complex trajectories. The bidirectional hydraulic cylinder can achieve dynamic balance between thrust and pull by adjusting the pressure difference between the two sides, adapting to complex load changes. The bidirectional hydraulic cylinder can also disperse the load impact on the vehicle under harsh working conditions through bidirectional pressure regulation, thereby improving system durability.

[0013] This utility model features an adjustment component where the thread helix angle of the adjusting screw is less than the friction angle, providing self-locking properties and preventing accidental loosening due to vibration or impact. The adjusting screw is connected to a U-shaped component, and the preload of the anti-tilt rod is changed by the driving force. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of a small stamped wheel-side front axle device suitable for harsh working conditions according to this utility model.

[0015] Figure 2 This is a partial three-dimensional structural schematic diagram of a small stamped wheel-side front axle device suitable for harsh working conditions according to this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the differential of this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of the bidirectional buffer pressure cylinder of this utility model;

[0018] Figure 5 This is a schematic diagram of the assembly structure of the adjustment component of this utility model;

[0019] Figure 6 This is a schematic diagram of the assembly structure of the transmission system and braking system of this utility model.

[0020] In the diagram: 1. Front axle housing; 2. Reducer; 3. Shaft column; 4. Two-way buffer hydraulic cylinder; 5. Adjustment assembly; 501. U-shaped part one; 502. Adjusting screw; 503. Threaded sleeve; 504. U-shaped part two; 6. Transmission system; 601. Front half shaft; 602. Universal joint; 603. Rear half shaft; 604. Bearing; 605. Splined shaft; 7. Steering knuckle assembly; 8. Braking system; 801. Flange; 802. Caliper; 803. Brake disc; 9. Wheel-side reducer. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] This utility model provides, for example Figure 1-6As shown, a small stamped wheel-side front axle device suitable for harsh working conditions includes: a front axle housing 1, a differential 2, a shaft sleeve 3, a two-way buffer hydraulic cylinder 4, two adjusting components 5, two transmission systems 6, two steering knuckle assemblies 7, two braking systems 8, and two wheel-side reducers 9. The adjusting components 5 include a U-shaped part 1 501, an adjusting screw 502, a threaded sleeve 503, and a U-shaped part 2 504. The transmission system 6 includes a front half-shaft 601, a universal joint 602, a rear half-shaft 603, a bearing 604, and a splined shaft 605. The braking system 8 includes a flange 801, a caliper 802, and a brake disc 803. The two-way buffer hydraulic cylinder 4 is fixedly mounted on the front axle housing 1 by screws. The U-shaped part 1 501 is hinged to the output shaft of the two-way buffer hydraulic cylinder 4. The adjusting screw 502 is welded to one side of the U-shaped part 1 501. The threaded sleeve 503... 03 is threaded onto the adjusting screw 502. The second U-shaped part 504 is welded onto the threaded sleeve 503. The front half-shaft 601 is located inside the front axle housing 1. One end of the front half-shaft 601 meshes with the gear of the differential 2. The universal joint 602 is fixedly installed on the ends of the front half-shaft 601 and the rear half-shaft 603 that are close to each other. The inner ring of the bearing 604 is fixedly sleeved on the rear half-shaft 603. The spline shaft 605 is fixedly installed on the bearing 604. Both the first U-shaped part 501 and the second U-shaped part 504 are equipped with rubber damping rings. Under complex environments such as vibration and impact, the rubber damping rings can maintain connection stability through elastic deformation and reduce the direct damage of impact force to the equipment. The universal joint 602 is a double cross-shaft universal joint. Its core function is to achieve stable power transmission under a large included angle between the two shafts. It has the characteristics of high transmission efficiency, strong structural adaptability, and long service life.

[0023] In addition, the differential 2 is fixedly mounted on the front axle housing 1 by screws. The differential 2 is a common bevel gear differential, which has a compact structure and small weight, and is widely used in construction machinery and trucks.

[0024] In addition, the shaft column 3 is welded to the front axle housing 1.

[0025] In addition, the two steering knuckle assemblies 7 are respectively fixed to both ends of the front axle housing 1 by screws.

[0026] In addition, the flange 801 is fixedly mounted on the steering knuckle assembly 7 by screws, and the caliper 802 is fixedly mounted on the flange 801 by screws. The caliper 802 contains brake pads.

[0027] In addition, the brake disc 803 is rotatably mounted on the spline shaft 605.

[0028] In addition, the wheel-side reducer 9 is fixedly mounted on the brake disc 803 by screws. The wheel-side reducer 9 is connected to the rear half-shaft 603 at one end away from each other. A set of planetary gears is installed inside the wheel-side reducer 9. Its core function is to achieve efficient and stable power transmission and distribution through the coordinated work of multiple gears. It also has a compact structure, high load-bearing capacity and diversified transmission functions.

[0029] Working principle:

[0030] Step 1: When entering harsh operating conditions, the vehicle ECU controls the bidirectional hydraulic cylinder 4 to adjust the oil pressure difference on both sides to achieve dynamic balance between thrust and pull based on road conditions. When the wheel-side reducer 9 moves inward due to road bumps, the steering knuckle assembly 7 moves inward along with the wheel-side reducer 9 and pushes the adjusting screw 5 inward to compress the bidirectional hydraulic cylinder 4. The bidirectional hydraulic cylinder 4 then pushes the adjusting screw 5 outward, causing the adjusting screw 5 to rotate the steering knuckle assembly 7. The steering knuckle assembly 7 then pushes the wheel-side reducer 9 outward again until the wheel-side reducer 9 returns to its initial position. When the wheel-side reducer 9 moves outward due to road bumps, the steering knuckle assembly 7 moves outward along with the wheel-side reducer 9 and pushes the adjusting screw 5 outward to pull the bidirectional hydraulic cylinder 4. The bidirectional hydraulic cylinder 4 then retracts inward and pulls the adjusting screw 5 inward. The steering knuckle assembly 7 moves inward along with the adjusting screw 5 and pulls the wheel-side reducer 9 back until the wheel-side reducer 9 returns to its initial position.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A small stamped wheel-side front axle device suitable for harsh working conditions, characterized in that, include: The front axle housing (1), differential (2), axle column cylinder (3), two-way buffer hydraulic cylinder (4), two adjustment components (5), two transmission systems (6), two steering knuckle assemblies (7), two braking systems (8), and two wheel-side reducers (9) are included. The adjustment component (5) includes a U-shaped part one (501), an adjustment screw (502), a threaded sleeve (503), and a U-shaped part two (504). The transmission system (6) includes a front half-shaft (601), a universal joint (602), a rear half-shaft (603), a bearing (604), and a splined shaft (605). The braking system (8) includes a flange (801), a caliper (802), and a brake disc (803). The two-way buffer hydraulic cylinder (4) is fixedly mounted on the front axle housing by screws. (1) The first U-shaped part (501) is hinged to the output shaft of the bidirectional buffer hydraulic cylinder (4). The adjusting screw (502) is welded to one side of the first U-shaped part (501). The threaded sleeve (503) is threaded to the adjusting screw (502). The second U-shaped part (504) is welded to the threaded sleeve (503). The front half shaft (601) is set in the front axle housing (1). One end of the front half shaft (601) meshes with the gear of the differential (2). The universal joint (602) is fixedly installed at the end of the front half shaft (601) and the rear half shaft (603) that are close to each other. The inner ring of the bearing (604) is fixedly sleeved on the rear half shaft (603). The spline shaft (605) is fixedly installed on the bearing (604).

2. The small stamped wheel-side front axle device suitable for harsh working conditions according to claim 1, characterized in that: The differential (2) is fixedly mounted on the front axle housing (1) by screws.

3. A small stamped wheel-side front axle device suitable for harsh working conditions according to claim 1, characterized in that: The axle cylinder (3) is welded to the front axle housing (1).

4. A small stamped wheel-side front axle device suitable for harsh working conditions according to claim 1, characterized in that: The two steering knuckle assemblies (7) are respectively fixed to both ends of the front axle housing (1) by screws.

5. A small stamped wheel-side front axle device suitable for harsh working conditions according to claim 1, characterized in that: The flange (801) is fixedly mounted on the steering knuckle assembly (7) by screws, and the caliper (802) is fixedly mounted on the flange (801) by screws.

6. A small stamped wheel-side front axle device suitable for harsh working conditions according to claim 1, characterized in that: The brake disc (803) is rotatably mounted on the splined shaft (605).

7. A small stamped wheel-side front axle device suitable for harsh working conditions according to claim 1, characterized in that: The wheel-side reducer (9) is fixedly mounted on the brake disc (803) by screws, and the wheel-side reducer (9) is connected to one end of the rear half-shaft (603).

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