Bulldozer is tracked or tyred tractor tractor special chassis as the host

In recent years, with the rapid development of hydraulic integration technology, the traditional mechanical, swamp hydraulic crawler dozer of the operation is complicated, labor-intensive, low productivity, system failures and other shortcomings more so can not meet the requirements of production operations, the development of intelligent construction machinery has become a trend. With the continuous development of science and technology, hydraulic drive bulldozers  increasingly showing strong vitality, foreign hydraulic drive technology matures, more and more applications in the bulldozers, a great tendency to replace the traditional forms of transmission.

Swamp dozer is a crawler tractor or tractor tire special chassis as the host, together with the suspension blade (some also have ripper apparatus) of one self type earth-moving machinery. Bulldozer at work, the shovel knife buried in, rely on forward travel drive system provides power to complete the cutting, pushing soil work, sometimes used as a filling, flat, tillage work. Bulldozer used to lift heavy physical labor, accelerate the construction schedule, to ensure construction quality. So it is a widely used in construction, road building, mining, agriculture, forestry, construction and other areas of basic national defense construction machinery.

Bulldozer main clutch slip

When the hydraulic drive bulldozers main clutch slip, engine speed to normal without black smoke, work equipment is working properly, but the machine climbing difficult, you can not even walk. Master clutch slip full hydraulic crawler bulldozer most common faults, for two main reasons: the main, driven pad wear; adjust the latch plate open welding; the main clutch lever is not in place; the adjustment plate and the flywheel cap end of thread engagement is poor. Clutch slip fault sometimes very tricky, general mechanic treatment is repeated rotational adjustment plate. If several adjustments to adjust the clutch still slips after hours, it is often the first remove the transmission and clutch master blindly demolition Mechanical Standard Bulldozer, so not only can not find the point of failure and damage to other parts easily, delays in production, the result will cause great economic losses. To this end, the investigation should be carefully analyzed in order to be effective based on the possible causes of

At the appropriate time the track pin and pin sleeve upside down

In the wear process 160hp hydraulic bulldozer pin and pin bush, the track is gradually stretched away steadily, resulting in poor driving wheel engages with the pin set, resulting in breakage and drive pin sets abnormal wear tooth surfaces, it will cause hunting, beat, impact greatly shorten the life of the running gear. By adjusting the tension level when the recovery is still not pitch, you need to hydrostatic drive bulldozer pins and collars upside down to get the track right away steadily. There are two decisions in the field of the track pin and pin bush plane turning moment; one way is to check the time and pulling steadily set track 3mm; the other way is to check the lock pin wear sleeve outer diameter 3mm moment.

Bulldozer main clutch friction disc clearance

small swamp bulldozer working process, such as the main clutch gradually slipping phenomenon then need to adjust the master clutch plates gap, the adjustment amount generally should not be greater than the width of the toggle. After the primary clutch work 40h, friction disc clearance will need to be adjusted. Adjustment method is to first check the joystick movement is flexible, manipulate the process is due to loose bolts the respective operating element is not in place, for these anomalies should first be excluded.
Press to loosen, tighten and positioning adjustment after the order. Specific adjustment steps are: first remove the Hydraulic Driven bulldozer main clutch cover, loosen the stopper nut. Such as joysticks forward position, indicating adjustment too tight, it should loosen; After adjustment, tighten the stopper nut, installed other parts. Prices loader with a wrench or apply force to the toggle lever connections, turn the adjustment ring (main clutch tight clockwise and counterclockwise turn loose the main clutch;) Write down the main clutch lever engaged position; adjust the main clutch, no Power forcibly pulling (250 ~ 300N), if the main clutch lever position and note the location of the same adjustment is completed.
If it does not rebound and slip clutch lever (ie universal and does not turn), then after the friction plate gap adjustment too loose, such as repeated friction disc clearance adjustment, still can not achieve predicted results, you should check the location of the booster valve and snap ring Each connecting rod machine capable of adjustment is appropriate. In operation, as found in the main clutch lever rebound phenomena (ie heavy load master clutch automatic separation), from the point of view of friction disc clearance is adjusted too tight.

Such mechanical traction bulldozer determine the level of work productivity

Because swamp hydraulic crawler dozer In the course of its work means a state of passive state, the need to travel agencies traction down to advance the work, so it is called mechanical traction. All towing vehicle drive system to withstand traction load working device, which is a dramatic change, fluctuation of non-stationary random load; swamp hydrostatic dozer towing vehicles generally no job quality requirements, and therefore does not require the stability of the work, but the pursuit of adaptive coordination (to achieve this speed and load capacity between mainly depends on the performance of the travel control system ), the purpose is to make full use of engine power, improve operational productivity, reduce specific fuel consumption, the pursuit of power, economy, job productivity. Thus for this type of traction bulldozer machinery, the travel drive system and with control system performance are important factors exert influence bulldozer operating performance, determine the level of work productivity, we can see on the bulldozer with the drive system and with the control system Research is very necessary and important.

Construction Machinery walking transmission currently there are four ways that the mechanical transmission, hydraulic transmission, hydrostatic transmission and power transmission. Wherein the hydrostatic transmission compared to other transmission mode has its unique advantages, which in the past few years more and more attention in order to be widely adopted.