CN2893119Y

CN2893119Y - Backpack earth boring machine

Info

Publication number: CN2893119Y
Application number: CN 200620096723
Authority: CN
Inventors: 马勇建; 朱晶瑜; 黄恒兴
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-05-16
Filing date: 2006-05-16
Publication date: 2007-04-25
Anticipated expiration: 2016-05-16

Abstract

The utility model relates to a back-pack trench excavator under the driving of the back-pack gasoline engine, wherein a power of the gasoline engine is connected with a gear box input shaft through a rotary flexible shaft, while the output shaft of the gear box is coupled with an earth drill. The shell body of the gear box is fixedly provided with armrests that are also fixedly provided with an accelerator controller. The operator can carry the gasoline engine on the back and hold the armrests by two hands to operate the trench excavator. The utility model has a compact structure and a reasonable design and the power part applies a split back-pack structure so as to reduce the weight of holding the drill bit by hand. The operation is more flexible and the accelerator controller of the gasoline engine is arranged at the armrests so that the utility model has the advantages of easy operation and control, high working efficiency, low laboring intensity, thus applicable to pit digging for urban gardening and tree planting on mountains.

Description

Backpack digging machine

Technical field:

The utility model belongs to round woods engineering machinery field, and is particularly a kind of by power-actuated Backpack digging machine.

Background technology:

The excavation machinery kind is a lot, but major part is used for exploitation engineering, belongs to big machinery, is often delivered to field operation by vehicle, only is suitable for road along logical building site, and obviously it is not suitable for round woods field and plants trees and dig pit.Existing tree planting is digged pit and is also kept traditional manpower to dig pit, and not only the low labour intensity of efficient is big, and forms bigger vegetation deterioration, dig pit for the mountain region and also can cause soil erosion, and the round woods operation in city is digged pit, and it is clean and tidy to influence the appearance of the city especially.Provide trench excavator that a kind of minitype motivation drives task of the present utility model.

Summary of the invention:

The purpose of this utility model be design a kind of be the dig pit small-sized Backpack digging machine of drill bit operation of power drive with the gasoline engine.

Technical solutions of the utility model are achieved in that a kind of by backpack gasoline engine driven Backpack digging machine, wherein gasoline engine power docks with the gearbox power shaft through rotary flexible shaft, be connected with the drill bit of digging pit on the output shaft of gear-box, be fixed with handrail on the gear box casing, be fixed with throttle control on the handrail.The operator can bear gasoline engine, and both hands hold handrail, can carry out operation reposefully and control.

In addition, described gearbox is by the cone pinion and the large bevel gear engagement that are fixed on the power shaft, the large bevel gear coaxial pinion again with output shaft on gear wheel engagement, power shaft becomes vertical stratification with output shaft, each all by bearing fixing on gear box casing, reduce the friction between guide shaft and gear box casing.Gasoline engine drives the high speed rotation of flexible axle after the two-stage speed change, not only changes the output shaft direction, and increases the moment of torsion of output shaft, makes the drill bit of digging pit strong and powerful, can be fit to the operation of digging pit on various ground.

The utlity model has compact conformation, reasonable in design, power section is adopted to separate and is born structure, alleviate the weight of hand-held bit part, operate light more flexibly, and the throttle control of gasoline engine is installed on the handrail, control conveniently, high efficiency, labour intensity is low, and suitable city circle woods, mountain region plant trees and dig pit.

Description of drawings:

Below in conjunction with concrete legend the utility model is described further:

Fig. 1 Backpack digging machine complete machine schematic diagram

Fig. 2 gearbox three-dimensional exploded view

Wherein

1-gasoline engine 11-flexible axle 12-throttle control 2-gearbox

20-interface 21-power shaft 22-output shaft 23-cone pinion

24-large bevel gear 25-pinion 26-rotating shaft 27-gear wheel

The 28-casing 29-loam cake 30-pipe box 3-drill bit of digging pit

4-handrail 5-bearing 6-bolt 7-pin

The specific embodiment:

With reference to Fig. 1, Backpack digging machine comprises backpack gasoline engine 1, gearbox 2 and the drill bit 3 of digging pit, gasoline engine 1 power docks with gearbox power shaft 21 through rotary flexible shaft 11, be connected with the drill bit 3 of digging pit on the output shaft of gear-box 22, be fixed with handrail 4 on gearbox 2 housings, be fixed with throttle control 12 on the handrail 4.

With reference to Fig. 2, described gearbox 2 also is the engagement of Gleason gear by the cone pinion 23 and large bevel gear 24 engagements that are fixed on the power shaft 21, realizes the change and the one-level speed change of rotor shaft direction, large bevel gear 24 and pinion 25 are fixed in the same rotating shaft 26, synchronously rotation; Pinion 25 again with output shaft 22 on gear wheel 27 engagement, realize two stage speed change, and increase torsion.22 one-tenth vertical stratifications of power shaft 21 and output shaft, flexible axle 11 docks with output shaft 22 from horizontal direction, convert output shaft 22 outputs of vertical direction to, the operation that is beneficial to the drill bit 3 of digging pit towards, reduce the unnecessary friction between various parts, each all is fixed on gearbox 2 housings by bearing 5 in the diagram.

In addition, described gearbox 2 housings are formed by casing 28 with by bolt 6 lockings loam cake 29 thereon, and take necessary oil sealing, are filled with light lubricating oil in case, and the lubricated of drive disk assembly is provided.Casing 28 sidewalls are provided with a power shaft and extend interface 20, power shaft 21 is fixed on the interface 20 by bearing 5, the interface 20 outer pipe boxes 30 that are connected with, flexible axle 11 can insert in the pipe box 30 and dock with power shaft 21, and, guarantee that flexible axle 11 reliably docks with power shaft 21 and makes things convenient for demolition by pin 7 and pipe box 30 lockings.

Claims

1, a kind of by backpack gasoline engine driven Backpack digging machine, it is characterized in that gasoline engine power docks with the gearbox power shaft through rotary flexible shaft, be connected with the drill bit of digging pit on the output shaft of gear-box, be fixed with handrail on the gear box casing, be fixed with throttle control on the handrail.

2, Backpack digging machine according to claim 1, it is characterized in that gearbox is by the cone pinion and the large bevel gear engagement that are fixed on the power shaft, the large bevel gear coaxial pinion again with output shaft on gear wheel engagement, power shaft becomes vertical stratification with output shaft, each all by bearing fixing on gear box casing.

3, Backpack digging machine according to claim 1 and 2, it is characterized in that gear box casing forms by casing with by bolt locking loam cake thereon, wall box is provided with a power shaft and extends interface, power shaft by bearing fixing on interface, interface is connected with a pipe box outward, flexible axle can insert in the pipe box and dock with power shaft, and by pin and pipe box locking.