Xuanhua Construction Machinery Blog

  Introduction of bulldozer A  Bulldozer  is a self-propelled construction machine with a bulldozing device and a control mechanism installed in front of a crawler tractor or a tire tractor. It is mainly used to excavate road cuttings, construct road lifting, backfill, remove obstacles, eliminate hail, and also It can complete the shoveling and stacking operations of short-distance loose materials. Classification of bulldozers Bulldozing can still be divided into: Crawler-type bulldozer: large traction force, low ground pressure, strong climbing ability, superior operation performance, is a multi-purpose model. Wheeled bulldozer: fast driving speed, good maneuverability, short cycle time, convenient and quick transfer, and does not damage the ground, especially suitable for urban construction and road maintenance projects. However, the adhesion performance is far inferior to that of  Crawler Bulldozers , and the range of use is limited. According to the installation form of the bulldoz

  The   tack type dozer  is a tracked earthmoving device with a front-mounted blade. Additionally called a bulldozer, the range of models extends from small energy versions, with 75 horsepower and also an operating weight of less than 20,000 extra pounds, to those coming close to 900 horsepower as well as weighing in at almost 240,000 pounds. Large dozers commonly are associated with applications that include moving substantial quantities of products, such as mining, site-development, as well as roadway building and construction. Smaller sized machines frequently are utilized as grading tractors to develop final qualities and contours in earthwork applications. Huge- sized dozers normally have a collection of claws called a ripper that is mounted at the backside of the equipment and also can crush an acid rock. Swamp bulldozers are geared up with an undercarriage that is configured to allow them to freely move on a marshy land. As a fellow machine, there is a pipe- laying device that l

  Daily maintenance of bulldozer Daily maintenance is a very important task. A good job can not only make the  Bulldozer   operate safely, but also extend its service life. Therefore, before and after the operation, the bulldozer should be inspected and maintained as required. During the operation, you should also pay attention to whether there are any abnormalities in the bulldozer operation, such as noise, odor, vibration, etc., so that the problem can be discovered in time and solved in time to avoid the deterioration of minor faults and serious consequences. At the same time, if the technical maintenance is done well, it can also extend the heavy and medium repair cycle of the bulldozer and give full play to its effectiveness. Maintenance content 1. Daily inspection Check the bulldozer before daily work. Look around and under the machine, check for loose nuts and bolts, leaks of inorganic oil, fuel or coolant, and check the working device and hydraulic system, and check for loosene

  Common wear and tear of crawler bulldozers four wheels and one belt The walking mechanism of the  Crawler Bulldozer  carries the full weight of the bulldozer. Responsible for the driving function of the bulldozer. The main damage form is wear. This damage form is concentrated in the following contact parts: the outer surface of the drive wheel tooth and the track pin sleeve; the guide wheel and the track link track surface of the track; the support wheel and the track link track The surface; the track surface of the sprocket wheel and the track link of the track; the contact surface of the track pin and the pin sleeve; the track shoe and the ground. 1. Wear of the track In the walking mechanism of the dry crawler, the crawler is not lubricated, causing wear between the crawler pin and the pin sleeve due to relative movement during the working process. The wear between the pin and the pin sleeve in the track is inevitable and normal, but this wear will extend the pitch of the track an

  Affected by the epidemic, your equipment has experienced a long-term shutdown. After long-term storage in the cold winter, various oils and lubrication protections of the motor grader may change. If the machine is turned on and put into operation without a detailed inspection, it may Poor operation will occur. In order to reduce equipment failures and ensure the best performance of the machine,   Komatsu Motor Grader   should undergo detailed inspection and maintenance before starting work. The first step: check before starting 1. Check the oil level and antifreeze level of each part ① Please park the  Motor Grader  on a level ground to ensure the safety of the surrounding environment. ②Check the engine oil, fuel and other parts; the oil level should be in the middle of the mark on the dipstick, and the fuel must be sufficient. ③The hydraulic and variable oil levels meet the requirements; if you need to add them, please select according to the fuel, coolant and lubricating oil table

  Variable speed and forward and backward When shifting gears, you should first push the throttle handle forward to the low-speed idling position, and then push the main clutch lever to the forefront to disengage the main clutch. Due to the action of the small brake in the main clutch, the power input shaft of the transmission stops rotating . At this time, you can correctly move the shift lever to the required gear, and then put the forward or retreat lever to the forward or backward position. After putting into gear, pull the throttle handle backwards to increase the engine speed, connect the main clutch steadily, and the  Bulldozer  starts driving. When the bulldozer is driving, the main clutch control lever should be pulled to the rearmost position, not in the half-engaged position. Because the main clutch is half-engaged, the friction lining wear will increase. Bulldozer transmissions generally have 5 forward gears and 4 reverse gears. The advance and retreat rod can be used to ch

  Bulldozers   are extremely effective pieces of heavy machinery, but not everyone knows how they work or appreciates their power. To pay homage to this incredible marvel of engineering, Dozer Supplier put together a short article on the basis of the bulldozer. Read on to learn something new and build up knowledge that’s sure to impress any of your gearhead buddies. What is a Bulldozer? How Does it Work? Most people don’t realize this, but a bulldozer is actually classified first and foremost as a  Tractor ! The difference between a dozer and a farm Tractor comes from the metal plate (also called a blade) featured in the front of the bulldozer. Similar to a tractor, however, the bulldozer is used to push massive amounts of debris and raw material, including sand, rocks, dirt, and bricks. Pieces of machinery work basically on account of the power applied by their global positioning framework. The tracks that pivot around the base of the dozer, similar to a flowing belt, are liable for i