干地推土机履带保持适当的张紧度

Maintain proper tension on the track of the dry land bulldozer

保养干地推土机方法，如果张紧过度，引导轮弹簧张力作用于履带销及销套，销子外圆和销套内圆一直受到高挤压应力，运转时销和销套产生过早的磨损，同时引导轮张紧弹簧的弹力还作用于引导轮轴和轴套，产生很大的表面接触应力，这使引导轮轴套容易磨成半圆，履带节节距容易拉长，并且会降低机械传动效率，浪费发动机传给驱动轮和履带的功率。

Maintenance method for dry land bulldozer: if the tension is excessive, the guide wheel spring tension acts on the track pin and pin sleeve. The outer circle of the pin and the inner circle of the pin sleeve are always subject to high extrusion stress. During operation, the pin and pin sleeve are prematurely worn. At the same time, the elasticity of the guide wheel tension spring also acts on the guide wheel shaft and shaft sleeve, resulting in great surface contact stress, which makes the guide wheel shaft sleeve easy to be ground into a semicircle and the track pitch easy to be lengthened, And it will reduce the mechanical transmission efficiency and waste the power transmitted by the engine to the driving wheels and tracks.

维护干地推土机方法，如果履带张紧过松，履带容易脱离引导轮和支重轮，而且履带失去正确的对中，使运行的履带波动、拍打、冲击，造成引导轮和托轮的异常磨损。

Maintenance method of dry land bulldozer: if the crawler is too loose, the crawler is easy to separate from the idler and roller, and the crawler loses the correct alignment, causing the running crawler to fluctuate, beat and impact, resulting in abnormal wear of the idler and supporting roller.

履带张紧度的调整，是通过给张紧缸注油嘴加注黄油或从放油嘴放出黄油，参照各机型的标准间隙作调整。当履带节节距拉长到需要拆下一组履带节时，驱动轮齿面与销套的啮合面也会受到异常磨损，此时维护干地推土机方法应在啮合状况恶化前进行适当处理，保养干地推土机方法比如将销与销套翻面，更换磨损过度的销与销套，更换履带节总成等。

The track tension is adjusted by adding grease to the oil nozzle of the tensioning cylinder or discharging grease from the oil drain nozzle, and by referring to the standard clearance of each model. When the track pitch is lengthened to the point where a group of track joints need to be removed, the meshing surface of the driving gear teeth and the pin sleeve will also be abnormally worn. At this time, the maintenance method of the dry land bulldozer should be properly handled before the meshing condition deteriorates. The maintenance method of the dry land bulldozer includes turning over the pin and the pin sleeve, replacing the excessively worn pin and pin sleeve, and replacing the track joint assembly.

保持干地推土机引导轮位置对中

Keep the idler position of the dry bulldozer centered

引导轮不对中对行走机构其他零件有严重影响，因此调整引导轮导板与履带架之间的间隙是延长行走机构寿命的要点。调整时用导板与轴承之间的垫片来修正，如果间隙大，拆去垫片；间隙小，增加垫片。保养干地推土机方法标准间隙为0.5～1.0mm，很大许可间隙为3.0mm。在适当时刻将履带销与销套翻面。

The misalignment of the idler has a serious impact on other parts of the traveling mechanism. Therefore, adjusting the clearance between the idler guide and the crawler frame is the key to prolong the service life of the traveling mechanism. During adjustment, use the gasket between the guide plate and the bearing to correct. If the clearance is large, remove the gasket; Small clearance, add shims. The standard clearance for maintenance of dry land bulldozer is 0.5 ~ 1.0mm, and the large allowable clearance is 3.0mm. Turn over the track pin and the pin sleeve at an appropriate time.

冷再生机出租人员认为在履带销与销套的磨损过程中，履带节节距被逐渐拉长，造成驱动轮与销套的啮合不良，导致销套破损和驱动轮齿面异常磨损，会引起蛇行、拍打、冲击，大大缩短行走机构的寿命。当通过调整张紧度仍不能恢复节距时，就需要将履带销和销套翻面，以得到正确的履带节节距。

The lessor of the cold regeneration machine believes that during the wear process of the track pin and the pin sleeve, the track pitch is gradually lengthened, resulting in poor engagement between the drive wheel and the pin sleeve, resulting in damage to the pin sleeve and abnormal wear of the drive gear tooth surface, which will cause hunting, slapping and impact, and greatly shorten the service life of the walking mechanism. When the pitch cannot be recovered by adjusting the tension, it is necessary to turn over the track pin and pin sleeve to obtain the correct track pitch.

在现场有两种决定履带销与销套翻面的时刻；一种维护干地推土机方法是查定履带节节距拉长3mm的时刻；保养干地推土机方法另一种方法是查定销套外圆直径磨损3mm的时刻。

There are two times on site to determine the turning over of the track pin and the pin sleeve; A method for maintaining a dry land bulldozer is to check the time when the track pitch is lengthened by 3mm; The other way to maintain the dry land bulldozer is to check the time when the outer diameter of the pin sleeve is worn by 3mm.

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