CN2777060Y

CN2777060Y - Improved digging machine

Info

Publication number: CN2777060Y
Application number: CN 200520000660
Authority: CN
Inventors: 张守印
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-02-03
Filing date: 2005-02-03
Publication date: 2006-05-03
Anticipated expiration: 2015-02-03

Abstract

The utility model relates to an improved digging machine which comprises a machine body, a big arm, a small arm and a harrow, wherein one end of the machine body is hinged on one end of the big arm, the other end of the big arm is hinged on one end of the small arm, and the other end of the small arm is hinged on the harrow; the positions among the hinge points are respectively provided with a driving cylinder; hinge structures are adopted among both ends of each driving cylinder and respective connectors. The utility model is characterized in that all hinge shafts are respectively provided with a bearing. The utility model has the advantages of lowered friction resistance in each of the hinge points, decreased abrasion and prolonged service life.

Description

Improved excavator

Technical field

The utility model relates to a kind of improved wheel excavator, is mainly used in agricultural.

Background technology

Existing this excavator its body and big arm, big arm and forearm, forearm with difficult to tackle between and the articulated structure that all adopts axle and axle sleeve between their each driving cylinders, its shortcoming is that frictional resistance is big, quick abrasion, application life weak point, easy-maintaining with lubricate.

Summary of the invention

The purpose of this utility model just provides a kind of improved excavator, and the frictional resistance that exists with each articulated structure that solves prior art is big, quick abrasion, application life is short and not easy-maintaining and lubricated problem.

The technical solution of the utility model is: comprise body, big arm; forearm and difficult to tackle; body one end is hinged with an end of big arm; the other end of big arm is hinged with an end of forearm; the other end of forearm is with difficult to tackle hinged; between above-mentioned each hinged place driving cylinder is housed respectively; all adopt articulated structure between the two ends of each this driving cylinder and each connector, it is characterized in that: at the jointed shaft of described body with big arm; the jointed shaft of big arm and forearm; forearm all is equipped with bearing with jointed shaft of scratching one's head and forearm and on the driving cylinder difficult to tackle between scratching one's head and the jointed shaft of scratching one's head.

At the two ends of each described jointed shaft two bearings are installed respectively.

On described other jointed shaft, bearing is installed all.

Bearing is one by one respectively installed at two ends at each described jointed shaft.

The utility model has the advantages that the frictional resistance that greatly reduces each hinged place, reduced wearing and tearing, keep in repair easily and lubricate, prolonged application life and sliding agent service time.

Description of drawings

Fig. 1 is a general structure schematic diagram of the present utility model.

The specific embodiment

Referring to Fig. 1, the utility model is a wheel excavator, comprises body 7, big arm 5, forearm 2 and scratches one's head 1, and body 7 is provided with front and back wheel 9, supporting leg 10 and operating room 8, body 7 left ends are hinged by jointed shaft 11 with an end of big arm 5, the two ends of hinged big arm cylinder 6 between body 7 and big arm 5.The other end of big arm 5 and an end of forearm 2 are hinged by jointed shaft 14, the two ends of hinged forearm cylinder 4 between big arm 5 and forearm 2.The other end of forearm 2 is hinged by jointed shaft 17 with difficult to tackle 1, the two ends of hinged driving oil cylinder 3 between forearm 2 and difficult to tackle 1.The jointed shaft 14 of the jointed shaft 11 between described body 7 and the big arm 5, big arm 5 and forearm 2, forearm 2 and difficult to tackle 1 jointed shaft 17 and forearm with scratch one's head between driving oil cylinder difficult to tackle 3 and the two ends of 1 the jointed shaft 18 of scratching one's head two bearings respectively are installed.

At other each jointed shaft (jointed shaft 12,13 between big arm cylinder 6 two ends and body 7 and the big arm 5; Jointed shaft 15 between forearm cylinder 4 and the forearm 2; Jointed shaft 16 between forearm 2 and the driving cylinder difficult to tackle 3) bearing is one by one respectively installed at two ends.

Claims

1, a kind of improved excavator, comprise body, big arm, forearm and difficult to tackle, body one end is hinged with an end of big arm, the other end of big arm is hinged with an end of forearm; the other end of forearm is with difficult to tackle hinged; between above-mentioned each hinged place driving cylinder is housed respectively; all adopt articulated structure between the two ends of each this driving cylinder and each connector, it is characterized in that: at jointed shaft, forearm and the jointed shaft of scratching one's head and the forearm of described body and the jointed shaft of big arm, big arm and forearm and on the driving cylinder difficult to tackle between scratching one's head and the jointed shaft of scratching one's head bearing is installed all.

2, improved excavator according to claim 1 is characterized in that: at the two ends of each described jointed shaft two bearings are installed respectively.

3, improved excavator according to claim 1 is characterized in that: on described other jointed shaft bearing is installed all.

4, improved excavator according to claim 3 is characterized in that: bearing is one by one respectively installed at the two ends at each described jointed shaft.