CN2861289Y

CN2861289Y - Wheel type unpowered walking hydraulic dredger

Info

Publication number: CN2861289Y
Application number: CN 200520016635
Authority: CN
Inventors: 行文凯
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-16
Filing date: 2005-04-16
Publication date: 2007-01-24
Anticipated expiration: 2015-04-16

Abstract

Disclosed is a novel wheeled un-powered walking hydraulic excavator belonging to the engineering mechanism, which comprises an engine, a hydraulic system, a work device, a driver room, a gyration table and a walking chassis. The gyration table supports on the walking chassis which comprises a front wheel pair, a back wheel pair and a differential; the driver room, the work device, the engine and a balance weight are arranged on the gyration table from the front to the back; The work device is articulated in sequence by a bucket, a bucket rod, an upper moving arm, a lower moving arm and a hydraulic cylinder, and respectively articulated with the gyration table through the lower moving arm and the hydraulic cylinder; a tractor-trailer pin-hole component is arranged on the bucket of the work device, and the joint between the bottom of the work device and a tractor is a smooth plane connected with the tractor by the tractor-trailer pin-hole; the upper moving arm and the lower moving arm are fixed by passing the fixing pins through the fixing pin holes arranged along an arc on the lower moving arm; and a steel rope against dropping is arranged between the fixing pins and the hydraulic cylinder on the lower moving arm. The utility model is characterized in that a traction frame is not needed, the cost is low, the application ranged is extended and the walking, turning around and towing become more flexible.

Description

Novel wheel-type is unpowered walking hydraulic crawler excavator

Technical field the utility model belongs to engineering machinery, is the unpowered walking hydraulic crawler excavator of a kind of novel wheel-type, is to the existing significant improvement of wheeled unpowered walking hydraulic crawler excavator on the mode of towing, the scope of application, walking steering behaviour.

The existing wheeled unpowered walking hydraulic crawler excavator of background technology is made up of motor, hydraulic system, equipment, drivers' cab, panoramic table, walking chassis, hitch frame, this machine is realized walking among a small circle by self structure, do not need common walking dynamic transfer system, make that it is simple in structure, rigidity increases; This machine walking turns to scraper bowl and trailing wheel to be supported, long-distance migration supports with hitch frame wheel and trailing wheel, just need front-wheel to support during excavation, so front-wheel can be made steel, the steel front-wheel has improved resistance to impact and the stability when excavating, little at excavation surface, road is rugged, construct under the hard condition of geology, have a clear superiority in than other excavators.But also feel to have weak point in using: can the traction migration for making tractor, be furnished with special hitch frame and this most of the time is no; Because the equipment scope of activities is unadjustable, the little scope of application that has limited it of excavation scope; Rigid connection makes walking, turns to and the traction underaction between the trailing wheel.

The summary of the invention the purpose of this utility model is to overcome the deficiency of above-mentioned wheeled unpowered walking hydraulic crawler excavator and provides a kind of and do not need that hitch frame, excavation scope are big, walking turns to and the traction unpowered walking hydraulic crawler excavator of novel wheel-type flexibly.

The technical scheme in the invention for solving the technical problem is: by motor, hydraulic system, equipment, drivers' cab, panoramic table, the walking chassis is formed, motor, hydraulic system, drivers' cabs etc. are basic identical with existing wheeled unpowered walking hydraulic crawler excavator, panoramic table is supported on by front-wheel [26], on the walking chassis of trailing wheel to compositions such as [18] and differential mechanisms [20] thereof, drivers' cab, equipment, motor and counterweight are installed on the panoramic table from front to back, equipment is by scraper bowl [2], dipper [4], last swing arm [6], downward moving arm [14] and hydraulic cylinder thereof are hinged in turn to form, and it is hinged with turntable [17] respectively through downward moving arm [14] and downward moving arm hydraulic cylinder [15], it is characterized in that: pins aperture member [1] and bottom are installed on the scraper bowl of equipment [2] and tractor [29] place of linking is a smooth surfaces, link by pins [30] and [29], last downward moving arm fixed pin holes [9] or [10] that last swing arm [6] and downward moving arm [14] are arranged by [14] upper edge unit arc, [11], [12], [13] penetrating steady pin fixes, and between steady pin and downward moving arm hydraulic cylinder and turntable hinged [25], install and prevent falling steel cable [31], when towing, is fulcrum with scraper bowl pins aperture member [1] with tractor [29] place of linking, pack up downward moving arm hydraulic cylinder [15] mention front-wheel to [26] after, carry out aforementioned connection, can guarantee tractor safety traction; The downward moving arm hydraulic cylinder [15] of equipment by be arranged in the anterior downward moving arm hydraulic cylinder of turntable [17] and turntable hinged [23] or [24], [25] and [17] are hinged, pass through to change the articulated position of [15] and [17] when needing, thereby change height and length that the downward moving arm hunting range changes excavation scope and excavator, to satisfy different construction conditions; [17] be installed in that rotating disk [22] is gone up and with its rotation, [22] are installed on the walking chassis of [26], trailing wheel being made of [18] and middle differential mechanism [20] thereof etc. front-wheel.

The beneficial effects of the utility model are: keeping on original wheeled unpowered walking hydraulic crawler excavator advantage basis, the cancellation hitch frame has reduced cost, has enlarged the scope of application, make walking, turn to traction more flexible.

Description of drawings Fig. 1 is a structural representation of the present utility model, and Fig. 1-1 is a pins aperture member zoomed-in view among Fig. 1.Each sequence number is represented among the figure: 1, pins pin-and-hole assembly, 2, scraper bowl, 3, connecting rod, 4, dipper, 5, the scraper bowl hydraulic cylinder, 6, go up swing arm, 7, dipper hydraulic cylinder, 8, go up the swing arm hydraulic cylinder, 9～12, go up the downward moving arm fixed pin holes, 13, upward downward moving arm is hinged, 14, downward moving arm, 15, the downward moving arm hydraulic cylinder, 16, counterweight, 17, turntable, 18, trailing wheel is right, and 19, hind axle, 20, differential mechanism, 21, downward moving arm is hinged, 22, rotating disk, 23～25, downward moving arm hydraulic cylinder and panoramic table be hinged, 26, front-wheel is right, 27, pin-and-hole, 28, the pin-and-hole cover.

Fig. 2 tows structural representation for the utility model.Each sequence number is represented among the figure: 29, tractor, 30, pins, 31, the anti-steel cable that falls.

Fig. 3 is the utility model steering structure force analysis figure.Each code name is represented among the figure: α, equipment etc. turns over angle, and β, hind axle turn over angle, F _c, in the face of the counter-force of scraper bowl 2, R _w, R _n, be the power of ground effects on outside rear wheel and inside rear wheel respectively.

Specific embodiment the utility model is made up of motor, hydraulic system, equipment, drivers' cab, panoramic table, walking chassis.Motor, hydraulic system, drivers' cab etc. are basic identical with existing wheeled unpowered walking hydraulic crawler excavator, panoramic table is supported on the walking chassis of [26], trailing wheel being made of [18] and differential mechanism [20] thereof etc. front-wheel, and drivers' cab, equipment, motor and counterweight are installed on the panoramic table from front to back.Equipment by scraper bowl [2], dipper [4], go up swing arm [6], downward moving arm [14] and hydraulic cylinder is hinged in turn forms, and hinged with turntable [17] respectively through downward moving arm [14] and downward moving arm hydraulic cylinder [15].Pins aperture member [1] and bottom are installed on the scraper bowl of equipment [2] and tractor [29] place of linking is a smooth surfaces, link by pins [30] and [29], last downward moving arm fixed pin holes [9] or [10] that last swing arm [6] and downward moving arm [14] are arranged by [14] upper edge unit arc, [11], [12], [13] penetrating steady pin fixes, and between steady pin and downward moving arm hydraulic cylinder and turntable hinged [25], install and prevent falling steel cable [31], when towing, is fulcrum with scraper bowl pins aperture member [1] with tractor [29] place of linking, pack up downward moving arm hydraulic cylinder [15] mention front-wheel to [26] after, carry out aforementioned connection, can guarantee tractor safety traction.The downward moving arm hydraulic cylinder [15] of equipment by be arranged in the anterior downward moving arm hydraulic cylinder of turntable [17] and turntable hinged [23] or [24], [25] and [17] are hinged, [15] with [17] in [23] when hinged, make excavator reach maximum digging height and minimum digging radius by each hydraulic cylinder of regulating on the equipment, can reduce simultaneously the length of excavator, [15] with [17] in [25] when hinged, same adjusting makes excavator reach maximum digging depth and maximum digging radius, can reduce the height of excavator simultaneously.Turntable [17] is installed on the rotating disk [22] and with its rotation, [22] be installed on the walking chassis of [26], trailing wheel being formed [18] and middle differential mechanism [20] thereof etc. by front-wheel, when turning to, rotating disk [22] drives [17] earlier and turns over angle [alpha], α＜90 °, then when driving dipper hydraulic cylinder [7], pack up downward moving arm hydraulic cylinder [15], scraper bowl this moment [2] is supported in ground, mention front-wheel to [26], excavator by scraper bowl [2], trailing wheel to [18] supported at three point in ground, ground is in the face of the counter-force F of scraper bowl [2] _cMake excavator at F _cThe segment distance that advances on the direction, R _w, R _nBe respectively the power of ground effects on outside rear wheel and inside rear wheel, obvious R _w＞R _n, R _w+ R _n=F _cAnd with F _cOppositely, thus under the effect of differential mechanism [20], ground effects in the power of outside rear wheel greater than the suffered power of inside rear wheel, so outside rear wheel will be subjected to force direction to turn over a circular arc bigger than inside rear wheel, R along scraper bowl _w-R _nThe big turning radius that heals is littler, and therefore hind axle turns over angle beta, and the β size is directly proportional with the distance that α and excavator advance, and turns to very flexible.

Claims

1, a kind of novel wheel-type is unpowered walking hydraulic crawler excavator, by motor, hydraulic system, equipment, drivers' cab, panoramic table, the walking chassis is formed, panoramic table is supported on by front-wheel [26], on the walking chassis of trailing wheel to compositions such as [18] and differential mechanisms [20] thereof, drivers' cab, equipment, motor and counterweight are installed on the panoramic table from front to back, equipment is by scraper bowl [2], dipper [4], last swing arm [6], downward moving arm [14] and hydraulic cylinder thereof are hinged in turn to form, and it is hinged with turntable [17] respectively through downward moving arm [14] and downward moving arm hydraulic cylinder [15], it is characterized in that: pins aperture member [1] and bottom being installed on the scraper bowl of equipment [2] and towing vehicle [29] place of linking is a smooth surfaces, link by pins [30] and [29], last downward moving arm fixed pin holes [9] or [10] that last swing arm [6] and downward moving arm [14] are arranged by [14] upper edge unit arc, [11], [12], [13] penetrate steady pin and fix, and the anti-steel cable [31] that falls is installed between steady pin and downward moving arm hydraulic cylinder and turntable hinged [25].

2, according to the unpowered walking hydraulic crawler excavator of the described novel wheel-type of claim [1], it is characterized in that: downward moving arm hydraulic cylinder [15] by be arranged in the anterior downward moving arm hydraulic cylinder of turntable [17] and turntable hinged [23] or [24], [25] and [17] are hinged.

3, according to the unpowered walking hydraulic crawler excavator of the described novel wheel-type of claim [1], it is characterized in that: trailing wheel is to being equipped with differential mechanism [20] in the middle of [18].