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An automatic fastening device for an excavator and a work attachment

A work attachment and excavator technology, applied in the field of automatic buckle devices, can solve the problems of high replacement labor intensity, low work efficiency, high work risk, etc., and achieve the effects of simple and compact structure, reliable work, and flexible and convenient operation.

Active Publication Date: 2019-03-19
河北新栋精密机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, excavators usually use manual dismantling, installation and connection of front and rear shaft pins to replace working attachments, and simple quick connection devices are also used, but the oil circuit needs to be manually disassembled, because the working gap of the working attachments is too small, and the weight of the attachments is relatively large , making the replacement labor intensive and time-consuming, resulting in low work efficiency and high risk of work

Method used

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  • An automatic fastening device for an excavator and a work attachment
  • An automatic fastening device for an excavator and a work attachment
  • An automatic fastening device for an excavator and a work attachment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment one: if figure 1 , 3 , 4. The upper buckle valve group 6 and the lower buckle valve group 5 are front and rear buckle connections, and the lower buckle valve group 5 is horizontally arranged in the lower connecting frame 2 and is close to the side of the rear locking pin 3; The upper buckle valve group 6 is horizontally arranged under the cylinder body of the hydraulic cylinder, and the upper buckle valve group 6 is driven to dock with the lower buckle valve group 5 through the action of the hydraulic cylinder, and the lock bolt 10 is driven to lock and then the locking pin 3 is locked; There is only one locating pin 11 that buckles the middle part of the valve group 6 , and two pairs of male buckle joints 13 are respectively arranged on both sides of the locating pin 11 .

[0034]The connection process of this embodiment is as follows: the front locking tiger mouth 7 of the upper connecting frame 1 is hooked to the front locking pin of the lower connecting ...

Embodiment 2

[0035] Embodiment two: if figure 2 , 5 , 6. The upper buckle valve group 6 and the lower buckle valve group 5 are connected up and down, and the lower buckle valve group 5 is vertically arranged in the lower connecting frame 2, and the female buckle joint 14 of the lower buckle valve group 5 Upward, the upper buckle valve group 6 is vertically arranged in the upper connecting frame 1, and the male buckle joint 13 of the upper buckle valve group 6 is facing downward, and the upper buckle valve group 6 is connected to the lower one by the falling of the upper connecting frame 1. The fastening valve group 5 is docked; the positioning pins 11 in the middle of the upper fastening valve group 6 are two arranged side by side, and two pairs of male buckle joints 13 are respectively arranged side by side on both sides of the two positioning pins 11 .

[0036] The connection process of this embodiment is as follows: Hook the front claw 7 of the upper connecting frame 1 to the front lo...

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PUM

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Abstract

The invention discloses an automatic fastening device for an excavator and working accessories and relates to the technical field of construction machinery. The device comprises an upper connecting rack and a lower connecting rack, wherein a rear locking pin and a front locking pin are arranged in the front and rear of the lower connecting rack respectively, and a lower fastening valve group communicating with hydraulic oil channels of the working accessories is arranged in the middle of the lower connecting rack; an upper fastening valve group communicating with a hydraulic oil channel of the excavator is arranged in a cavity of the upper connecting rack, a front clamping claw jaw matched with the front locking pin is arranged at the front end of the upper connecting rack, a cambered clamping claw matched with the rear locking pin is arranged at the rear end, a locking device is arranged at the lower part of the upper connecting rack, the upper connecting rack cooperates with the cambered clamping claw through the locking device to lock the rear locking pin of the lower connecting rack, and the upper connecting rack and the lower connecting rack are connected; the upper fastening valve group is butted with the lower fastening valve group, and the hydraulic oil channels of the working accessories communicate with the hydraulic oil channel of the excavator. The automatic fastening device has the advantages of being simple in structure and convenient to operate, facilitates connection between the excavator and various working accessories and needs no artificial assistance, thereby achieving the purpose of remote automatic fastening.

Description

technical field [0001] The invention relates to the technical field of construction machinery, in particular to an automatic fastening device for an excavator and a work attachment. Background technique [0002] Today, with the modernization of construction machinery, hydraulic excavators, as a kind of construction machinery with wide application and strong adaptability, have the characteristics of flexible operation, convenient use, digitalization and intelligence. Changes in the form of work. In order to meet the different work needs of users, different types of work attachments need to be frequently replaced during hydraulic excavator construction, such as buckets, grabs, hydraulic hammers, hydraulic rammers, hydraulic shears, etc. At present, excavators usually use manual dismantling, installation and connection of front and rear shaft pins to replace working attachments, and simple quick connection devices are also used, but the oil circuit needs to be manually disasse...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02F3/96
CPCE02F3/961
Inventor 郝光峰赵亚飞
Owner 河北新栋精密机械有限公司