A kind of crawler doer
Technical field
The utility model relates to a kind of bulldozer, especially relates to a kind of crawler doer.
Background technology
Bulldozer is a kind of common construction machinery and equipment, is widely used in the place of various earthworks.Hydraulic bulldozer is native stone exploitation main mechanical, be widely used in industry and civil construction, according to the state of the art of domestic and international hydraulic bulldozer, according to the difference of running gear, be divided into crawler type, rubber-tyred and walking etc., bulldozer easily causes crawler belt overhang to exceed the scope of 10-20mm when walking, when overhang is excessive, crawler belt runout and aggravation chain rail joint and guide wheel, sprocket faces wearing and tearing, thereby easily fall chain phenomenon, when overhang is too small, walking driving power will sharply increase, and because down-hole road obstacle is many, be easy to occur that foreign material snap in the phenomenons such as crawler belt and occur.
Therefore regulate the tensioning degree of crawler doer very important, existing apparatus setting have loosening device or a tightening device, equal more complicated troublesome poerations, cost is also higher.
Utility model content
The purpose of this utility model is to bulldoze into track takeup complex structure for existing, the problem of inconvenient operation, a kind of crawler doer is provided, the utility model is by adopting slide plate, few parts such as locating plate and electric pushrod just can be realized the function that regulates tensioning, and electric pushrod can be by remote manipulation, easy to operate, be provided with dowel bolt simultaneously and can limit being free to slide of slide plate by being fixed on locating plate, simultaneously when electric pushrod is not worked, can dual cooperation prevent slide plate slides, thereby play the object that prevents that crawler belt is loosening.
The utility model is the deficiency solving the problems of the technologies described above, and the technical scheme adopting is:
A crawler doer, comprises bulldozing device, operator's compartment, track unit and driving system, described transmission system drives bulldozer work and the operation of track unit, bulldozing device comprises that an one end is arranged on the cantilever by HYDRAULIC CONTROL SYSTEM of operator's compartment one side and is arranged on the scraper bowl on the cantilever other end, and described track unit comprises tensioning buffer gear, crawler belt, track frame, guide wheel, a plurality of caterpillar wheels and sprocket wheel, caterpillar wheel between guide wheel and sprocket wheel, caterpillar wheel, guide wheel and sprocket wheel are installed on track frame, and crawler belt is around guide wheel, caterpillar wheel and sprocket wheel setting, and guide wheel, caterpillar wheel and sprocket wheel form wheeled mechanism, and tensioning buffer gear comprises slide plate, locating plate, dowel bolt and electric pushrod, locating plate and electric pushrod are all fixed on track frame, the external part of electric pushrod drives guide wheel horizontal slip together by promoting slide plate, by guide wheel horizontal slip, reach the object of tensioned tracks, dowel bolt is fixed on being free to slide with restriction slide plate in the positioning groove on locating plate through slide plate by slide plate.
Described sprocket wheel is connected with the dynamical axis of driving system.
The beneficial effects of the utility model are: the utility model is by adopting few parts such as slide plate, locating plate and electric pushrod just can realize the function that regulates tensioning, and electric pushrod can be by remote manipulation, easy to operate, be provided with dowel bolt simultaneously and can limit being free to slide of slide plate by being fixed on locating plate, simultaneously when electric pushrod is not worked, can dual cooperation prevent slide plate slides, thereby play the object that prevents that crawler belt is loosening.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of crawler belt in the utility model.
Graphical indicia: 1, scraper bowl; 2, cantilever; 3, operator's compartment; 4, track unit; 401, crawler belt; 402, caterpillar wheel; 403, sprocket wheel; 404, electric pushrod; 405, locating plate; 406, positioning groove; 407, dowel bolt; 408, slide plate; 409, guide wheel.
The specific embodiment
Shown in figure, the specific embodiment is as follows:
A kind of crawler doer, comprise bulldozing device, operator's compartment 3, track unit 4 and driving system, described transmission system drives bulldozer work and the operation of track unit 4, bulldozing device comprises that an one end is arranged on the cantilever 2 by HYDRAULIC CONTROL SYSTEM of operator's compartment 3 one sides and is arranged on the scraper bowl 1 on cantilever 2 other ends, described track unit 4 comprises tensioning buffer gear, crawler belt 401, track frame, guide wheel 409, a plurality of caterpillar wheels 402 and sprocket wheel 403, caterpillar wheel 402 is between guide wheel 409 and sprocket wheel 403, caterpillar wheel 402, guide wheel 409 and sprocket wheel 403 are installed on track frame, crawler belt 401 is around guide wheel 409, caterpillar wheel 402 and sprocket wheel 403 arrange, and guide wheel 409, caterpillar wheel 402 and sprocket wheel 403 form wheeled mechanism, tensioning buffer gear comprises slide plate 408, locating plate 405, dowel bolt 407 and electric pushrod 404, locating plate 405 and electric pushrod 404 are all fixed on track frame, the external part of electric pushrod 404 drives guide wheel 409 horizontal slip together by promoting slide plate 408, by guide wheel 409 horizontal slips, reach the object of tensioned tracks 401, dowel bolt 407 is fixed on being free to slide with restriction slide plate 405 in the positioning groove 406 on locating plate 405 through slide plate 408 by slide plate 408.
Described sprocket wheel 403 is connected with the dynamical axis of driving system.
The utility model in use, first check that whether crawler tensioning degree is qualified, then can move bulldozer, in the time of needs tensioning, need to open dowel bolt 407 makes slide plate 408 in can sliding mode, now operate electric pushrod, electric pushrod external part continues to stretch out promotion slide plate and drives guide wheel to slide, thereby make crawler tensioning reach tensioning object, after tensioning, slide plate can not be free to slide dowel bolt installation and can prevent that relaxation appears in crawler belt in bulldozer work.
The technical scheme that the utility model is cited and embodiment are not restrictions, in the cited technical scheme of the utility model and embodiment is equal to or effect same approach is all protected at the utility model scope.