Front frame of loading machine

Through the design of the front frame of the loader with the inner and outer double-side plate structure and rib plate, the problem of connecting stress concentration in the existing technology is solved, and the high-strength integrated connection between the front frame and the axle is realized, reducing the failure rate and optimizing the weight.

CN223116442UActive Publication Date: 2025-07-18QINGDAO LOVOL EXCAVATOR
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Patent Information

Application Number
CN202421781012.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-25
Publication Date
2025-07-18
Estimated Expiration
2034-07-25

AI Technical Summary

Technical Problem

The overall stress at the connection position of the front frame and the axle of the existing loader is high, resulting in an increase in the failure rate and it is difficult to meet the strength requirements of large-tonnage hybrid loaders.

Method used

The inner and outer double-sided plate structure is adopted, and the front frame and the axle are connected through reinforced plates to form a double-board stress-bearing structure, and lightweight is performed inside the inner and outer side plates. At the same time, connecting components such as upper reinforcement plates, middle reinforcement plates and bearings are arranged between the front frames and the axle to achieve integrated connection.

Benefits of technology

It improves the overall connection strength between the front frame and the axle, reduces stress concentration, reduces the impact load of the entire vehicle and materials, reduces the overall weight and reduces the failure rate.

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Abstract

The utility model discloses a loader front frame and a loader, and belongs to the technical field of engineering machinery. The loader front frame comprises a front middle beam, a left side box and a right side box, the left side box and the right side box are fixedly arranged at the two ends of the front middle beam respectively in a mirror symmetry mode, and an upper hinge seat and a lower hinge seat which are distributed at intervals are fixedly arranged between the two wing boxes. The side box comprises an inner side plate and an outer side plate, the inner side plate and the outer side plate are parallel to each other, the inner side plate and the outer side plate are both connected to the axle through the rib plate, a double-plate stress side box structure is formed, and meanwhile integrated connection of the front frame and the axle is achieved. According to the double-plate stress structure, the problem that the connecting part is weak due to existing single-plate stress is solved, the rib plates are used for replacing an existing bolt connecting mode, integrated connection of the front frame and the axle is achieved, the overall connecting strength is improved, and the impact load of the whole vehicle and materials is greatly reduced.
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