An excavator energy storage flat push link type self-locking reinforced quick changer

Abstract

The invention discloses an excavator energy storage flat push connecting rod type self-locking reinforced quick changer, which is equipped with a slider, a connecting rod, a lock shaft, a compression rod and nitrogen energy storage on the left and right sides of a locking oil cylinder. The connecting rod self-locking mechanism composed of type safety spring components; the slider is movably connected to the side plate bracket and its front end is hinged with the connecting rod, the middle part is movably connected with the locking cylinder, and the rear end face is in conflict with the compression rod. The lock shaft is hinged, and the lock shaft is arranged in the guide hole on the front lock hook; the compression rod is movably arranged in the spring chamber and the nitrogen chamber, and the compression rod and the spring chamber are connected by a locking spring. The quick changer uses the locking cylinder to provide the main power, and uses the locking spring to assist in the positioning of the slider and the maintenance of the angle between the connecting rod and the lock shaft. The pressure provided by the nitrogen energy storage system can further promote the lock. With the maintenance of the stop angle, the mechanism is in a stable self-locking state, and it still has the self-locking function when both the locking cylinder and the locking spring fail, and it has triple safety guarantees.

Description

technical field [0001] The invention belongs to the technical field of construction machinery manufacturing, and in particular relates to an energy-storage flat push link type self-locking reinforced quick changer for an excavator. Background technique [0002] Excavators are widely used in the field of construction machinery manufacturing. The working tools of traditional excavators are installed between the small arm of the excavator and the two driving links. Conventional working machines have buckets, claws, etc.; but as With the continuous expansion of the mechanical operation range of excavators, excavators have expanded from the traditional functions of digging, crushing, and backfilling through buckets to realizing soil drilling, vibrating compaction, crocodile pliers breaking, grapple clamping, and soil loosening by installing different operating tools. More than 10 functions, such as rolling, tunneling and rock opening, have greatly improved the use value and scope...

AI Technical Summary

Problems solved by technology

[0005] However, it is worth noting that when using this type of quick changer, the operators found that there is a potential safety hazard of spring damage during the use of this type of mechanical protection component. Once the hydraulic cylinder and spring fail at the same time, the locking structure will no longer function. Locking effect, the installation pin shaft of the work tool loaded on it still has the risk of falling off from the excavator, safety hazards still exist, and the safety of construction operations cannot be guaranteed efficiently

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