CN202577416U

CN202577416U - Earth boring machine

Info

Publication number: CN202577416U
Application number: CN 201220214886
Authority: CN
Inventors: 张玉栋; 张国庆
Original assignee: SHANDONG KANGHONG MACHINERY CO Ltd
Current assignee: SHANDONG KANGHONG MACHINERY CO Ltd
Priority date: 2012-05-15
Filing date: 2012-05-15
Publication date: 2012-12-05
Anticipated expiration: 2022-05-15

Abstract

The utility model discloses an earth boring machine which comprises a car frame, a cab mounted on the car frame, and a travelling mechanism mounted on the car frame. A front bracket and a swinging oil cylinder for driving the front bracket to horizontally swing are hinged at the front end of the car frame; a lifting swing arm and a lifting oil cylinder for driving the front end of the lifting swing arm to lift are hinged on the front bracket; an earth boring mechanism is hinged at the front end of the lifting swing arm; an angle adjusting oil cylinder is further mounted on the front bracket; a rocking arm is hinged on the lifting swing arm; a piston rod of the angle adjusting oil cylinder is hinged with one end of the rocking arm; and the other end of the rocking arm is hinged with the earth boring mechanism. The earth boring machine provided by the utility model has the advantages of easiness in adjustment of an earth boring angle and flexibility in operation.

Description

A kind of trench excavator

Technical field

The utility model relates to a kind of excavation machinery, specifically is a kind of trench excavator.

Background technology

When seedling growth or the pile anchoring of herding fence, need to dig pit on the ground earlier.Original way is to adopt manual work to dig pit, and adopting artificial shortcoming of digging pit is that labour intensity is big, and efficiency is low.Existing trench excavator adopts tractor back suspended, and the mechanism that is about to dig pit is suspended on the tractor rear portion, and the mechanism of digging pit comprises hanger bracket; Be rotatably connected to the main shaft that drives by power set on the hanger bracket; Spiral helicine drilling blade is housed on the main shaft, and the width of drilling blade is gradually little from top to bottom, adopts this trench excavator when digging pit, to have disadvantage: the angle of the mechanism of digging pit is difficult for adjustment; Be difficult to accurately dig pit, and this mechanism's operation of digging pit is dumb; Quick abrasion in this spiral helicine drilling blade working process, poor stability, thus cause use cost high.

The utility model content

The technical problem that the utility model will solve provides the trench excavator that a kind of angle of digging pit is prone to adjustment, flexible operation.

For solving the problems of the technologies described above; The trench excavator that is provided comprises vehicle frame, is installed in the driver's cabin on the vehicle frame and is installed in the walking mechanism on the vehicle frame; Its design feature is: the front end of vehicle frame is hinged with front rack and drives the oscillating oil cylinder of front rack horizontal hunting, is hinged with on the front rack to promote swing arm and drive to promote the hoist cylinder that the swing arm front end goes up and down, and the front end that promotes swing arm is hinged with the mechanism of digging pit; The angle adjustment oil cylinder also is housed on the front rack; Promote on the swing arm and be hinged with rocking arm, an end of the piston rod of angle adjustment oil cylinder and rocking arm is hinged, and the other end of rocking arm is hinged with the mechanism of digging pit.

The said mechanism of digging pit comprises the hanger bracket that is connected with the lifting swing arm with above-mentioned rocking arm; Be rotatably connected to the main shaft that drives by power set on the hanger bracket; Symmetrically arranged at least two helical form bit blades are housed on the main shaft; The lower end of each bit blades is equipped with straight drill blade respectively, and the lower end of main shaft is fixed with auxilliary cutter head support, on the auxilliary cutter head support tip auxilliary cutter head down is housed.

The symmetrically arranged two body cradles power rack middle with being positioned at two body cradles is housed on the said hanger bracket, and said lifting swing arm and two body cradles are hinged, and the end of said rocking arm is hinged through connecting rod and power rack.

Said main shaft is connected on the hanger bracket through bearing support, and said power set are hydraulic motor, and the upper end of main shaft is connected with hydraulic motor power.

Balance weight iron is equipped with at the rear portion of said vehicle frame.

After adopting said structure, when digging pit, drive the mechanism's level of digging pit through oscillating oil cylinder driving front rack and swing; Thereby confirm horizontal level, through the dig pit height of mechanism of lift cylinder adjustment, through the dig pit verticality of mechanism of angle adjustment oil cylinder adjustment; Thereby adjusted the three-dimensional position of the mechanism of digging pit exactly, and adjusted through above-mentioned oil cylinder, operation is very nimble; Operator's labour intensity reduces greatly, and efficiency is high.

In sum, the utlity model has the advantage that the angle of digging pit is prone to adjustment, flexible operation.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further described:

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

Fig. 2 is the structural representation of mechanism of digging pit;

Fig. 3 be among Fig. 2 A to sketch map.

The specific embodiment

Trench excavator as shown in Figure 1; It comprises vehicle frame 1, is installed in the driver's cabin 19 on the vehicle frame 1 and is installed in the walking mechanism on the vehicle frame; Walking mechanism is formed by being contained in engine 20 on the vehicle frame 1 and the road wheel 21 that is connected with engine 20 power; Engine 20 is installed in the rear portion of vehicle frame 1, and the balance weight iron 17 that is positioned at engine 20 belows also is equipped with at the rear portion of vehicle frame 1.The front end of vehicle frame 1 is hinged with front rack 2 and drives the oscillating oil cylinder 3 of front rack 2 horizontal huntings, and oscillating oil cylinder 3 is symmetrical set two altogether, when two oscillating oil cylinders 3 move simultaneously; But front rack 2 levels swing; Be hinged with the hoist cylinder 5 that promotes swing arm 4 and drive the up-down of lifting swing arm 4 front ends on the front rack 2, the rear portion hinge of hoist cylinder 5 is contained on the front rack 2, its piston rod hinge is contained in the middle front part that promotes swing arm 4, and the front end of lifting swing arm 4 is hinged with the mechanism of digging pit; Angle adjustment oil cylinder 6 also is housed on the front rack 2; Promote on the swing arm 4 and be hinged with rocking arm 7, an end of the piston rod of angle adjustment oil cylinder 6 and rocking arm 7 is hinged, the other end of rocking arm 7 is hinged, as shown in figures 1 and 3 with the mechanism of digging pit; Promote swing arm 4 front ends and have two support arms that laterally arrange; Supporting base 18 is equipped with at two support arms middle part, is hinged with connecting rod 22 on the supporting base 18, and the middle part hinge of connecting rod 22 is contained on the supporting base 18.

Like Fig. 1, Fig. 2 and shown in Figure 3; The above-mentioned mechanism of digging pit comprises the hanger bracket 8 that is connected with lifting swing arm 4 with above-mentioned rocking arm 7; Following structure is adopted in this connection: symmetrically arranged two body cradles 14 and the power rack 15 that is positioned at two body cradles, 14 centres are housed on the hanger bracket 8; It is hinged with two body cradles 14 to promote swing arm 4, and the end of rocking arm 7 is hinged through connecting rod 22 and power rack 15, and promptly 7 hinged, the other end of an end of connecting rod and rocking arm and power rack 15 cut with scissors and adorn.Be rotatably connected to the main shaft 9 that is driven by power set on the hanger bracket 8, main shaft 9 is connected on the hanger bracket 8 through bearing support, and power set are hydraulic motor 16, and the upper end of main shaft 9 is connected with hydraulic motor 16 power.Symmetrically arranged at least two helical form bit blades 10 are housed on the main shaft 9; Two helical form bit blades 10 have been shown among Fig. 2, and above-mentioned symmetry is meant center, the axle center symmetry with main shaft 9, and the lower end of each bit blades 10 is equipped with straight drill blade 11 respectively; Drill blade 11 and main shaft 9 vertical settings and when main shaft 9 during perpendicular to ground; Drill blade 11 is slanted angle with ground, and the lower end of main shaft 9 is fixed with auxilliary cutter head support 12, on the auxilliary cutter head support 12 tip auxilliary cutter head 13 down is housed; The leading section setting triangular in shape of auxilliary cutter head 13, vertex of a triangle are the tip of auxilliary cutter head 13.

Start power set and drive main shaft and rotate, punch on the ground through auxilliary cutter head earlier, carry out reaming through straight drill blade again, the direct wearing and tearing of drill blade are diminished; Symmetrically arranged helical form bit blades can make under the steady more ground auger of this mechanism; Soil after the drilling be sent on the ground along with the rotation of bit blades and be distributed under the action of centrifugal force hole around; Thereby the mechanism stability of originally digging pit is high, wearing and tearing are little, and the degree of accuracy height of digging pit.

Claims

1. trench excavator; Comprise vehicle frame (1), be installed in the driver's cabin (19) on the vehicle frame (1) and be installed in the walking mechanism on the vehicle frame; It is characterized in that: the front end of vehicle frame (1) is hinged with front rack (2) and drives the oscillating oil cylinder (3) of front rack (2) horizontal hunting; Be hinged with on the front rack (2) to promote swing arm (4) and drive and promote the hoist cylinder (5) that swing arm (4) front end goes up and down; The front end that promotes swing arm (4) is hinged with the mechanism of digging pit, and angle adjustment oil cylinder (6) also is housed on the front rack (2), promotes on the swing arm (4) and is hinged with rocking arm (7); One end of the piston rod of angle adjustment oil cylinder (6) and rocking arm (7) is hinged, and the other end of rocking arm (7) is hinged with the mechanism of digging pit.

2. trench excavator according to claim 1; It is characterized in that: the said mechanism of digging pit comprises the hanger bracket (8) that is connected with lifting swing arm (4) with above-mentioned rocking arm (7); Be rotatably connected to the main shaft (9) that drives by power set on the hanger bracket (8); Symmetrically arranged at least two helical form bit blades (10) are housed on the main shaft (9); The lower end of each bit blades (10) is equipped with straight drill blade (11) respectively, and the lower end of main shaft (9) is fixed with auxilliary cutter head support (12), on the auxilliary cutter head support (12) tip auxilliary cutter head (13) down is housed.

3. trench excavator according to claim 2; It is characterized in that: symmetrically arranged two body cradles (14) are housed on the said hanger bracket (8) and are positioned at the middle power rack (15) of two body cradles (14); Said lifting swing arm (4) is hinged with two body cradles (14), and the end of said rocking arm (7) is hinged through connecting rod (22) and power rack (15).

4. trench excavator according to claim 3 is characterized in that: said main shaft (9) is connected on the hanger bracket (8) through bearing support, and said power set are hydraulic motor (16), and the upper end of main shaft (9) is connected with hydraulic motor (16) power.

5. according to each described trench excavator among the claim 1-4, it is characterized in that: balance weight iron (17) is equipped with at the rear portion of said vehicle frame (1).