Engineering truck front axle with high trafficability
By designing the "eng" cross-sectional engineering vehicle front axle with a drop of 15 to 100mm, the problem of excessive drop between the middle of the front axle and the fist height is solved, and the passing and safety of the vehicle on rugged roads is improved.
Patent Information
- Application Number
- CN202421270786.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-06-05
AI Technical Summary
The gap between the heights of the middle part of the front axle of the construction vehicle and the fists at both ends is too large, which is easily obstructed by the bumpy road surface or stone scratches on the rugged road surface, affecting the passage of the vehicle and posing safety hazards.
Forgings formed by roller die forging are designed as "I-shaped" cross-section, including steel plate spring seats at both ends of the middle of the front axle and fists connected by cantilevers. The cantilevers are upwardly raised I-shaped beams, and the cylinder axis is located in front In the bridge parting surface, the drop between the steel plate spring seat and the center of the upper end surface of the fist is 15 to 100mm, and the height of the middle part of the front axle is increased to reduce the drop.
It significantly reduces the gap between the middle of the front axle and the fist, improves the passability of the engineering vehicle on rugged roads, reduces the risk of being scratched by the road surface and stones, and enhances safety.
Smart Images
Figure CN222310285U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of front axles, in particular to an engineering vehicle front axle with high passability. Background Art
[0002] In order to facilitate the installation of the drive shaft and lower the center of gravity of the vehicle, the middle of the front axle of the engineering vehicle is lower than the fist height at both ends, with a large drop. This drop is not a problem under normal circumstances, because the wheels of engineering vehicles are generally large in diameter, so that the front axle can maintain a certain height from the ground, and usually does not affect the passage of engineering vehicles. However, on rugged roads, especially when passing through roadless sections in mining areas, the middle of the front axle with a large drop can easily be scratched by raised roads or stones, affecting the passage of vehicles and even causing safety hazards. Utility Model Content
[0003] The purpose of the utility model is to provide a front axle of an engineering vehicle with high passability in view of the deficiencies of the prior art, which reduces the drop between the middle part and the two end fists of the front axle of the engineering vehicle, thereby increasing the height of the front axle from the ground, thereby improving the passability of the engineering vehicle on rough roads.
[0004] The technical solution adopted by the utility model to solve its technical problems is: a front axle of an engineering vehicle with high passability is a forging formed in one piece by roller die forging, is symmetrical in length direction, and has an "I"-shaped cross section, including leaf spring seats at both ends of the middle part of the front axle, and a fist connected by a cantilever at the outer end of the leaf spring seat, the cantilever is an upwardly tilted I-beam, and forms a bend with the middle part of the front axle at the leaf spring seat, the fist is a cylinder connected to the end of the cantilever, and the axis of the cylinder is located in the parting surface of the front axle, and the height difference between the leaf spring seat and the center of the upper end surface of the fist is 15 to 100 mm.
[0005] Preferably, the height difference between the leaf spring seat and the center of the upper end surface of the fist is 15 mm, 65 mm and 100 mm.
[0006] Preferably, the angle between the upper end surface of the fist and the leaf spring seat is 173.5°.
[0007] Preferably, reinforcing ribs extending from the web to both sides are provided at the bending portion between the cantilever and the middle portion of the front axle.
[0008] Preferably, the two fists are arranged in an eight-shaped shape at both ends of the front bridge.
[0009] Preferably, the thickness of the upper and lower wing plates of the leaf spring seat is greater than the thickness of the wing plates at other parts of the front axle.
[0010] Preferably, the wing plate width of the section between the two leaf spring seats in the middle part of the front axle is smaller than the upper wing plates of the two leaf spring seats, and the ratio of the width of the upper wing plate of the leaf spring seat to the width of the lower wing plate is greater than 3.
[0011] The beneficial effects of the utility model are as follows: the front axle of the engineering vehicle with high passability is a forging formed by roller die forging, which is symmetrical in length direction and has an "I"-shaped cross section, including leaf spring seats at both ends of the middle part of the front axle, and a fist connected by a cantilever at the outer end of the leaf spring seat, the cantilever is an I-beam that tilts upward and forms a bend with the middle part of the front axle at the leaf spring seat, the fist is a cylinder connected to the end of the cantilever, and the axis of the cylinder is located in the parting surface of the front axle, and the drop between the leaf spring seat and the center of the upper end face of the fist is 15 to 100 mm. The front axle of the utility model has a drop between the leaf spring seat and the fist that is much smaller than that of a conventional front axle, so that the engineering vehicle using the front axle has higher road passability. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a front view of the front axle of the engineering vehicle with high passability of the utility model.
[0013] Description of reference numerals:
[0014] 1 – leaf spring seat, 2 – cantilever, 3 – fist, 4 – reinforcing rib. DETAILED DESCRIPTION
[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the scope of implementation of the present invention is not limited thereto.
[0016] like Figure 1 As shown, the front axle of the engineering vehicle with high passability in this embodiment is a forging formed by roller die forging, which is symmetrical in length direction and has an "I"-shaped cross section, including leaf spring seats 1 at both ends of the middle part of the front axle, and fists 3 connected by cantilevers 2 at the outer ends of the leaf spring seats 1. The cantilever 2 is an I-beam that is tilted upward and is bent with the middle part of the front axle at the leaf spring seat 1. The fist 3 is a cylinder connected to the end of the cantilever 2, and the axis of the cylinder is located in the parting surface of the front axle. The drop between the leaf spring seat 1 and the center of the upper end surface of the fist 3 is 15 to 100 mm. The parting surface of the front axle refers to the parting surface of the upper and lower dies during roller die forging of the front axle.
[0017] The leaf spring seat 1 of the front axle is connected to the frame through a leaf spring, and the fist 3 is connected to the wheel through a steering knuckle. The assembled front axle has the lowest middle part. Therefore, when the diameter of the wheel remains unchanged, reducing the height difference between the middle part of the front axle and the fist 3 is equivalent to increasing the height between the middle part of the front axle and the ground, thereby reducing the possibility of the middle part of the front axle being scratched by the road surface and stones, thereby improving the road passability of the engineering vehicle.
[0018] According to the type of engineering vehicle and the working conditions, the present embodiment is provided with three types of front axles with different drops, namely, the height differences between the leaf spring seat 1 and the center of the upper end surface of the fist 3 are 15 mm, 65 mm and 100 mm.
[0019] The cross section of the front axle of this embodiment is I-shaped in the entire length. In order to improve the strength of the cantilever 2 at the bend, reinforcing ribs 4 extending from the web to both sides are provided at the bend between the cantilever 2 and the middle of the front axle.
[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, and for the convenience of describing the technical solution, the front, rear, left, right, top, middle, and bottom directions adopted are based on the settings in the accompanying drawings, rather than limiting the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.
Claims
1. A front axle of an engineering vehicle with high passability, characterized by: It is a forging formed by roller forging, which is symmetrical in length direction and has an "I"-shaped cross-section, including leaf spring seats at both ends of the middle part of the front axle, and a fist connected to the outer end of the leaf spring seat by a cantilever. The cantilever is an upwardly tilted I-beam and forms a bend with the middle part of the front axle at the leaf spring seat. The fist is a cylinder connected to the end of the cantilever, and the axis of the cylinder is located in the parting surface of the front axle. The height difference between the leaf spring seat and the center of the upper end surface of the fist is 15 to 100 mm.
2. The front axle of an engineering vehicle with high passability according to claim 1, characterized in that: The height difference between the leaf spring seat and the center of the upper end surface of the fist is 15mm, 65mm and 100mm.
3. The front axle of an engineering vehicle with high passability according to claim 1, characterized in that: The cantilever and the middle part of the front axle are provided with reinforcing ribs extending from the web to both sides at the bending part.
4. The front axle of an engineering vehicle with high passability according to claim 1, characterized in that: The thickness of the upper and lower wing plates of the leaf spring seat is greater than the thickness of the wing plates at other parts of the front axle.
5. The front axle of an engineering vehicle with high passability according to claim 1, characterized in that: The wing plate width of the section between the two leaf spring seats in the middle of the front axle is smaller than the upper wing plates of the two leaf spring seats, and the ratio of the width of the upper wing plate of the leaf spring seat to the width of the lower wing plate is greater than 3.