CN204781033U - Novel excavator extension arm - Google Patents

Abstract

The utility model relates to a novel excavator extension arm comprises steady job arm and activity work arm two parts, steady job arm one end links to each other with the excavator, the steady job arm other end passes through the flange and links to each other with activity work arm, all install metal oil pipe on steady job arm and the activity work arm, link to each other through soft oil pipe between metal oil pipe on the steady job arm and the metal oil pipe on the activity work arm. The utility model discloses can change different kinds of activity work arms according to the construction condition, the flexibility is good, the efficiency of construction is high, and the commonality is good, with low costs.

Description

A kind of dredger extension arm

Technical field

The utility model relates to a kind of excavator, particularly relates to a kind of extension arm of excavator.

Background technology

The type of existing working arm of excavating machine and length are generally fixing, at some construction site, longer or shorter working arm may be needed, or need the type changing different operating arm, just there is significant limitation in so existing excavator, can not adapt to the various constructions of special occasions.

Utility model content

The utility model, in order to overcome existing technical deficiency, provides a kind of excavator extension jib that can regulate working arm length, change working arm type.

The technical scheme that the utility model adopts is as follows:

A kind of dredger extension arm, it is characterized in that, described extension arm is made up of two parts, be respectively steady job arm and active operation arm, described steady job arm one end is connected with excavator, the described steady job arm other end is connected with active operation arm by flange, and described steady job arm and active operation arm are all provided with metal oil conduit, and the metal oil conduit on described steady job arm is connected by consistent lubricant pipe with between the metal oil conduit on active operation arm.

Further, described active operation arm upper end is also connected with forearm, large arm, between described active operation arm and forearm, is provided with support cylinder between described forearm and large arm.

Extension arm of the present utility model is made up of steady job arm and active operation arm, according to condition of construction, dissimilar active operation arm can be changed, to adapt to the requirement of different construction environment, different construction trade, flexibility is good, efficiency of construction is high, and versatility is good, cost is low.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

In accompanying drawing, 1-steady job arm, 2-consistent lubricant pipe, 3-active operation arm, 4-support cylinder, 5-forearm, 6-large arm.

Detailed description of the invention

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figure 1, a kind of dredger extension arm, is characterized in that, described extension arm is made up of two parts, is respectively steady job arm 1 and active operation arm 3.Described steady job arm 1 one end is connected with excavator, and described steady job arm 1 other end is connected with active operation arm 3 by flange.Steady job arm 1 and active operation arm 3 are all provided with metal oil conduit, and the metal oil conduit on described steady job arm 1 is connected by consistent lubricant pipe 2 with between the metal oil conduit on active operation arm 3.Certainly, when practical application, also can be connected with the sleeve inlayed between steady job arm 1 and active operation arm 3, or be connected by other dismountable modes.Main purpose is in order to according to condition of construction, changes active operation arm 3 that is dissimilar, different length, to adapt to the requirement of different construction environment, different construction trade.

As shown in Figure 1, active operation arm 3 upper end is also connected with forearm 5, large arm 6, between described active operation arm 3 and forearm, is provided with support cylinder 4 between described forearm 5 and large arm 6.Forearm 5 and large arm 6 can increase the flexibility of construction further, adapt to some special construction requirement.

It is to be noted; the utility model is not limited to above-mentioned embodiment; any those skilled in the art, based on any simple modification done above-described embodiment in technical solutions of the utility model, Combination application, equivalent variations and modification, all belong in protection domain of the present utility model.

Claims (2)

1. a dredger extension arm, it is characterized in that: described extension arm is made up of two parts, be respectively steady job arm and active operation arm, described steady job arm one end is connected with excavator, the described steady job arm other end is connected with active operation arm by flange, described steady job arm and active operation arm are all provided with metal oil conduit, and the metal oil conduit on described steady job arm is connected by consistent lubricant pipe with between the metal oil conduit on active operation arm.

2. a kind of dredger extension arm according to claim 1, is characterized in that: described active operation arm upper end is also connected with forearm, large arm, between described active operation arm and forearm, is provided with support cylinder between described forearm and large arm.