CN2156216Y

CN2156216Y - Automatic ditch excavator

Info

Publication number: CN2156216Y
Application number: CN 93228659
Authority: CN
Inventors: 李德宇
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-07-05
Filing date: 1993-07-05
Publication date: 1994-02-16
Anticipated expiration: 2003-07-05

Abstract

The utility model relates to an engineering machine, in particular to a machine for ditching. A bottom beam is equipped with a driving motor, and a motor shaft is connected with a clutch through a driving belt. A transmission shaft of the clutch is connected with a hydraulic pump. A hydraulic motor is fixed on a standing frame, and the output shaft of the hydraulic motor is equipped with a chain-shaped driving wheel. A working crawler is hang on the chain-shaped driving wheel. When the automatic ditch excavator is walking, the soil can be tore up and turned to the ground to throw away. The digging speed can be adjusted, and the hard soil layer or the asphalt pavement can be easily crushed and tore up, and the digging depth can be adjusted.

Description

Automatic ditch excavator

The utility model relates to a kind of engineering machinery, particularly a kind of machinery that is exclusively used in ditching.

In engineering constructions such as tap water, coal gas, post and telecommunications, generally need ditching to bury underground pipeline, cable etc. underground.At present the ditching operation that carries out, finish with spade and pick plane basically, its labour intensity is very big, and work efficiency is very low, a day earth excavation can only reach 2-3m per capita ³About, make the construction period lengthening, particularly ditching on traffic route, long-time construction can cause serious road congestion, influence safety, the infringement appearance of the city produce many bad consequences, so the unit in charge of construction that has is in order to accelerate construction progress, adopt big excavator to construct, though the duration has accelerated, operating expenses has improved greatly, and is bigger to the ground failure that excavates simultaneously, be used for equaling low load with strong power, some waste on the trench digging.

The purpose of this utility model is, the ditching that a kind of usefulness is manual or electronic, driving force is made in hydraulic drive machinery is provided, this machinery is made up of gear drive or hydraulic gear and walking mechanism, soil can be excavated during walking, and the soil that will excavate is translated into jettisoning on the ground, make it to reach rapid operation, improve the result of use of work efficiency.

The purpose of this utility model realizes by following technical measures:

It comprises skeleton, elevating chain, handwheel, walking hydraulic cylinder, clutch, reductor, work crawler belt, bottom girder, the bottom of described bottom girder is provided with wheel, one walking hydraulic cylinder is fixed on place in the middle of the bottom girder bottom, moving bar directly links to each other with the walking ratchet mechanism in the cylinder, drive motors is equipped with on the top of bottom girder, motor shaft flexibly connects on clutch through driving-belt, clutch shaft is input in the mechanical type reductor, speed reducer output shaft links through the sprocket wheel on flexible driving band and the bearing pin, and by one group of bevel gear pair interlock power transmission shaft; Be hinged with leg-of-mutton supporting stand hydraulic cylinder between bottom girder and the stand, an end of bearing pin is equipped with bevel gear and is meshed with gear on the power transmission shaft, vertically is equipped with the metal stand on the bearing pin; Power transmission shaft and bevel gear pair slide and link, and upper and lower end is fixing with the bearing supporting, and the chain driving wheel is housed on the output shaft of this gear pair, and the work crawler belt hangs on the chain driving wheel, and the bottom of work crawler belt hangs on the follower; Promote chain and hang on the two pairs of sprocket wheels up and down in the stand, its underpart sprocket wheel is coaxial with a worm gear, and handwheel is housed on the worm screw.Drive motors is housed on the bottom girder, and motor shaft is connected on the clutch through driving-belt, and clutch shaft is input on the hydraulic pump; Hydraulic motor is installed in the stand, and the hydraulic motor output shaft end is equipped with the chain driving wheel, and the work crawler belt hangs on the chain driving wheel.On the described crawler belt, also be fixed with and cut native cutter and throw native plate, be connected in the tensioning apparatus in the stand, be stretched on the crawler belt inwall; Have the keyway of symmetry on the power transmission shaft, bevel gear pair and crawler belt are fixed together by base plate.

Advantage of the present utility model and good effect are:

1. its walking mechanism realizes index(ing) feed by the Driven by Hydraulic Cylinder ratchet, and the speed of travel is controlled by hydraulic circuit, can realize stepless speed regulation, therefore can adjust excavation speed, hard soil layer or flexible pavement easily is broken excavates.

2. drive by driving wheel the crawler belt of cutting native cutter and throwing native plate is housed, move both vertically, carry out ditching and throw soil, and can adjust excavation depth.Adapt to different ditch depth needs.

3. whole vertical stand by the axis on the rotation underframe, and is shunk supporting stand hydraulic cylinder sliding bar, comes folding falling, thereby makes carrying more convenient, and deposit and do not take up space.

4. this machinery 84m that can cut the earth every day ³, be equivalent to 40 people's workload.The standard power part is adopted in its processing and manufacturing, has interchangeability, is convenient to maintenance and use.

Description of drawings is as follows:

Fig. 1 is wooden utility model mechanical drive mode overall structure front view;

Fig. 2 is the utility model mechanical drive mode overall structure left view;

Fig. 3 is the utility model hydraulic transmission mode overall structure front view;

Fig. 4 is the utility model hydraulic transmission mode overall structure left view;

Below in conjunction with the accompanying drawing illustrated embodiment the utility model is done further detailed description.

The utility model has two kinds of kinds of drive, a kind of is that mechanical type (as Fig. 1,2) another kind is the formula (as Fig. 3,4) of surging, its hydraulic drive is with mechanically operated reductor 12, become hydraulic pump 21, bevel gear pair 16 is become hydraulic motor 20, realize rotatablely moving of work crawler belt 17 through handling circuit controls hydraulic motor 20, carry out trench digging work.Miscellaneous part and machine driving do not have big variation.

Drive motors 10, clutch 11, reductor 12 can be selected standard component for use, are connected with bottom girder 23 with bolt then.Hydraulic cylinder 13 upper and lower sides of supporting stand are connected through the hinge.The horizontal steel of stand 4 usefulness is through being welded, and the lower end connects with big bearing pin 22, and stand 4 was fallen or can be rotated by bearing pin 22 when erecting.The left end of simultaneously big bearing pin 22 is equipped with the driving gear of sprocket wheel 24 and conical gear pair 14, and sprocket wheel 24 is fixed on the sleeve jointly with driving gear, and sleeve is fixed on the big bearing pin 22 by pair of bearings, realizes the rotation of sprocket wheel driving gear.Power transmission shaft 15 can select for use the 45# steel through modifier treatment, and the upper end is fixed with thrust bearing and angular contact ball bearing, and support with radial ball bearing the lower end, does not bear axial force, has two symmetrical keyways on the axle.Conical gear secondary 16 is installed in the same casing, and driving wheel is installed on the sleeve, sleeve by bearing fixing on casing, the endoporus symmetry of sleeve is installed two guiding driving keys, match with power transmission shaft 15, realize both transfer motion powers of conical gear pair 16, can move up and down along the axis of axle 15 again.Two of lifting chain 3() upper end links to each other with two sprocket wheels, and sprocket wheel is fixed on the same axis, and the two ends of axle are by bearing, and bearing box is fixed in the stand 4, realizes the rotation of two sprocket wheels.Also there are two sprocket wheels the lower end, structure is identical with the upper end, difference is that right-hand member is equipped with worm-and-wheel gear, worm gear and sprocket wheel are fixed on the same axis jointly, and the worm screw external part is equipped with handwheel 5, rotation hand wheel 5(rotating all can) drive moving up and down of sprocket rotation realization work crawler belt 17 by worm and wormwheel, worm screw can select for use little lift angle helix to realize self-locking, when rotation hand wheel not, work crawler belt 17 is slack, can not glide because of gravity like this.Conical gear secondary 16 and work crawler belt 17 are fixed together by base plate, can move up and down jointly.Driving wheel 2, follower 6 in the workpiece crawler belt 17 are installed on the support 1 by bearing.The follower of driving wheel and conical gear pair 16 is contained on the same axis jointly, support 1 optional A ₃Plate is welded, two chains wheel can adopt the 45# steel to handle through hard surfacing, the chain wheel is meshed with crawler belt 17, be the transmission of profile of tooth mode, on the inwall of crawler belt 17 also mutually by the tensioning apparatus 25 in stand of being installed in 4 is arranged, to increase the work rigidity, crawler belt adopts cast steel to form through casting, cut native cutter 18 and throw native plate 19 by bolt on its surface, cutting native cutter 18 materials can select for use high-carbon steel to reach enough hardness through Quenching Treatment, satisfy and cut native stone and anti abrasive requirement, throw native plate 19 and can use cast steel material, be fixed by bolts to equally on the crawler belt 17.It is replaceable to cut native cutter, throwing soil plate wearing and tearing back.Running gear is realized index(ing) feed with hydraulic cylinder 8 driving pawl mechanisms 7, and hydraulic cylinder 8 cylinder bodies are solid on bottom girder 23, and the moving bar of piston drives ratchet mechanism, ratchet adopts two-way ratchet, ratchet is linked on the moving bar of piston, and ratchet is fixed on the axle, can both drive ratchet in the moving bar push-and-pull process of piston and rotate.Axle head is fixed with wheel 9(rubber tire), wherein left wheel and axle be by bearing fixing and clutch (gear clutch) is housed so that when ditching closure, separately, can realize freely turning when dragging walking.

Its drive motors 10, reductor 12, hydraulic pump 21, hydraulic motor 20 can be selected standard type number for use, and other critical pieces can be made processing by oneself.

Claims

1, automatic ditching machine, comprise skeleton 1, elevating chain 3, handwheel 5, walking hydraulic cylinder 8, clutch 11, reductor 12, work crawler belt 17, bottom girder 23, the bottom that it is characterized in that described bottom girder 23 is provided with wheel 9, one walking hydraulic cylinder 8 is fixed on place in the middle of the bottom girder bottom, moving bar directly links to each other with walking ratchet mechanism 7 in the cylinder, drive motors 10 is equipped with on the top of bottom girder 23, motor shaft flexibly connects on clutch 11 through driving-belt, clutch shaft is input in the mechanical type reductor 12, speed reducer output shaft links through the sprocket wheel 24 on flexible driving band and the bearing pin 22, and by one group of bevel gear pair, 14 interlock power transmission shafts 15; Be hinged with leg-of-mutton supporting stand hydraulic cylinder 13 between bottom girder 23 and the stand 4, an end of bearing pin 22 is equipped with bevel gear and is meshed with gear on the power transmission shaft 15, vertically is equipped with metal stand 4 on the bearing pin 22; Power transmission shaft 15 slides with bevel gear pair 16 and links, and upper and lower end is fixing with the bearing supporting, and chain driving wheel 2 is housed on the output shaft of this gear pair 16, and work crawler belt 17 hangs on the chain driving wheel 2, and the bottom of work crawler belt 17 hangs on the follower 6; Promote chain 3 and hang on the two pairs of sprocket wheels up and down in the stand 4, its underpart sprocket wheel is coaxial with a worm gear, and handwheel 5 is housed on the worm screw.

2, ditching machine as claimed in claim 1 is characterized in that being equipped with on the bottom girder 23 drive motors 10, and motor shaft is connected on the clutch 11 through driving-belt, and clutch shaft is input on the hydraulic pump 21; Hydraulic motor 20 is installed in the stand 4, and the output axle head of hydraulic motor 20 is equipped with chain driving wheel 2, and work crawler belt 17 hangs on the chain driving wheel 2.

3, ditching machine as claimed in claim 1 or 2 is characterized in that on the described crawler belt 17, also is fixed with to cut native cutter 18 and throw native plate 19, is connected in the tensioning apparatus 25 in the stand 4, is stretched on the crawler belt inwall; Have the keyway of symmetry on the power transmission shaft 15; Bevel gear pair 16 and crawler belt 17 are fixed together by base plate.