Working device having digging and lifting functions

Abstract

The invention discloses a working device having digging and lifting functions; a support base (13) is fixed at one side of the upper part of a moving arm (1); an opening of a crossing part of a U-shaped fork joint (9) is upwards spanned on the support base (13), and the U-shaped fork joint is movably hinged with the support base; bucket rod hydraulic cylinders (4) are symmetrically arranged at the two sides of the moving arm (1); a piston rod end of each bucket rod hydraulic cylinder (4) is movably hinged with a boss shoulder (5); one end of a bucket rod (10) is fixedly connected to the middle position of the bottom of the U-shaped fork joint (9); a dig bucket (12) is arranged at the end part of the bucket rod, and is connected with a dig bucket hydraulic cylinder (11) arranged on the bucket rod; and the dig bucket hydraulic cylinder (11) is used for controlling the working and the stop of the dig bucket. The working device has the digging and lifting functions, and effectively uses an existing space for enabling working parts to exert higher efficiency without being mutually interfered.

Description

technical field [0001] The invention relates to a working device, in particular to a working device with excavating and lifting functions, and belongs to the technical field of design and application of excavating and hoisting equipment. Background technique [0002] During the laying construction of pipeline network projects in large-scale projects such as oil, natural gas, and water conservancy, excavators are generally used to excavate and backfill the trenches for laying pipelines, and cranes are used to transport and install pipelines that need to be laid. Therefore, in such In the process of engineering construction, it is necessary to use the crane and the excavator to work in turn. Due to the singleness and limitation of the functions of the crane and the excavator, the two can only carry out the construction work alone. Therefore, the equipment investment is large and labor High strength, low construction efficiency, long construction period and high construction co...

AI Technical Summary

Problems solved by technology

[0002] During the laying construction of pipeline network projects in large-scale projects such as oil, natural gas, and water conservancy, excavators are generally used to excavate and backfill the trenches for laying pipelines, and cranes are used to transport and install pipelines that need to be laid. Therefore, in such In the process of engineering construction, it is necessary to use the crane and the excavator to work in turn. Due to the singleness and limitation of the functions of the crane and the excavator, the two can only carry out the construction work alone. Therefore, the equipment investment is large and labor High strength, low construction efficiency, long construction period and high construction cost

[0003] For this reason, Chinese invention patent 201110176932.8, titled "a working device with both excavation and lifting functions" discloses a working device with both excavation and lifting functions. At the same time, it also has the function of an excavator. Therefore, it can effectively overcome the above-mentioned defects of large equipment investment, high labor intensity, low construction efficiency, long construction period, and high construction cost. "Working device with lifting function" has the following defects because the stick cylinder driving the stick is arranged between the angle formed by the stick and the boom in structure: 1. The angle space between the arms is limited, and the size and specification of the stick cylinder is generally limited. It is impossible to use a larger size cylinder, and the working force of the stick cannot be greatly improved, which reduces the excavation work effect and excavation efficiency. 2. Due to the structure Due to the above restrictions, the digging force when the stick is working is realized by the piston rod of the stick cylinder retracting, and the force generated by the retraction of the piston rod of the cylinder is generally small, so the force that the stick can generate The excavation force is further restricted, which further reduces the excavation work effect and excavation efficiency

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