Method and device for connecting excavating machine with excavating tool

Abstract

The invention discloses a method and a device for connecting an excavating machine with an excavating tool. A device comprising a hydraulic oil cylinder, a tool connecting shaft seat, an excavating machine small arm connecting shaft seat, a tool connecting shaft, an excavating machine small arm connecting shaft and a compaction connecting rod which are connected is previously mounted on the excavating tool, so that when a small arm of the excavating machine is connected with the excavating tool, a piston rod can be used for inserting the tool connecting shaft into a hole of the tool connecting shaft seat and inserting the excavating machine small arm connecting shaft into a hole of the excavating machine small arm connecting shaft seat and a shaft hole of the small arm of the excavating machine through the compaction connecting rod by starting a hydraulic power drive device; and when the insertion operation is finished, valves of two oil pipe connectors of the hydraulic oil cylinder are closed and oil pipes are dismounted, so that the small arm of the excavating machine can be connected with the excavating tool. The device has not only the advantages of convenience for mounting, effort saving and quickness but also the advantages of simple structure, simplicity for manufacturing, reliable connection performance, convenience for mounting and dismounting and the like.

Description

technical field [0001] The invention relates to a connection method and device for an excavator and an excavating tool, and belongs to the technical field of excavator auxiliary tools. Background technique [0002] At present, in the prior art, when it is necessary to connect excavating tools such as buckets, breaking hammers, hydraulic shears or hydraulic pliers used on the excavator to the small arm of the excavator, it is generally used to manually insert the pin shaft into the excavator. The shaft seat hole on the tool and the shaft hole on the small arm of the excavator connect the excavating tool with the small arm of the excavator. This method of manually inserting the pin shaft for connection not only requires labor Large, inconvenient installation, low work efficiency, and there are also problems that it is difficult to replace the digging tool, and it is easy to damage the machine when replacing the digging tool. Especially after a kind of excavating tool has been...

AI Technical Summary

Problems solved by technology

[0002] At present, in the prior art, when it is necessary to connect excavating tools such as buckets, breaking hammers, hydraulic shears or hydraulic pliers used on the excavator to the small arm of the excavator, it is generally used to manually insert the pin shaft into the excavator. The shaft seat hole on the tool and the shaft hole arranged on the small arm of the excavator connect the excavating tool with the small arm of the excavator. This method of manually inserting the pin shaft for connection not only has labor load Large, inconvenient installation, low work efficiency, and there are also problems that it is difficult to replace excavating tools, and it is easy to damage the machine when replacing excavating tools

Especially after a kind of excavating tool has been used for a long time, when another excavating tool is to be replaced on the small arm of the excavator, due to the long-term use by the sun and rain, the nut on the pin will produce It must be rusted. At this time, when removing the digging tool on the small arm of the excavator, the operator must first use a beating tool to loosen the rusty nut on the pin shaft and remove it, and then use the beating tool to remove the pin. After the shaft is knocked out of the shaft seat hole on the digging tool and the shaft hole on the small arm of the excavator, the digging tool can be removed, and then another digging tool can be replaced. Knock the pin shaft into the shaft hole. This way of knocking installation will cause great damage to the machine.

Therefore, the connection mode of existing excavator and digging tool is very unsatisfactory

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