Xuanhua Construction Machinery Blog

Excavator can be competent to excavate gravel, soil, ore and other types of materials, so from his birth, it has been "used", is indispensable in the construction of various projects earth moving machinery. In recent years, the excavator is ushered in the rapid development, has become one of the most important construction machinery in engineering construction. So, in the construction of the pivotal excavator, in the end, what kind of development history?   Early excavators   ● As early as the end of the 15th century, the prototype of excavator began to appear. In Italy, where water shipping was the main mode of transportation, silt dredges appeared.   ● According to "Da Vinci's Notebook", the dredge was made of two canoes side by side, with a runner between the sides, and a bucket was installed on the runner, which was driven by human power, allowing the bucket to probe into the bottom of the river to dig the river silt and clean the river.   ● The bucket capac...

  1, idle automatically forward, put into forward gear can also be normal driving, put into backward gear when the machine stops, can not walk. The working pressure of each gear is normal.   Failure causes. Forward clutch master and slave plate sintering and clamping. Forward clutch piston jamming, support check valve blockage.   Removal method. Disassemble the forward clutch, clean the oil channel, replace the main and driven friction plate and related damaged parts, clean the relevant parts, replace the outer seal ring, clean and unclog the check valve, replace the clutch friction plate, inner and outer seal ring.   2, the whole machine suddenly does not move forward, not backward, variable speed working pressure is normal.   Cause of failure. (1) for the variable speed distribution valve failure or (40F, 50D, 50F) accumulator damage variable speed valve pneumatic control valve stem stuck or damaged. (2) the oil feed path blocked. (3) Accumulator oil circuit b...

China as a large infrastructure country,   construction machinery   can be seen everywhere, but in the end which is a bulldozer, which is a forklift, not necessarily everyone can distinguish clearly, in order to let you better understand the various construction machinery,   HBXG   share this article with you today!   1、Bulldozer Bulldozer is a kind of earthwork machinery capable of excavating, transporting and discharging rock and soil, which has a wide range of uses in open pit mines. It is used for building discharge yards, leveling car discharge yards, stacking scattered ore rocks, leveling working flat pans and building sites, etc.   2、Earth grader Earthmoving machinery that uses scrapers to level the ground. The scraper is installed between the front and rear axle of the machine, and can lift, tilt, turn and stretch out. The action is flexible and accurate, easy to manipulate, and has high precision in leveling the ground. It is suitable for construct...

Bulldozers   are one of the most common types of earthmoving equipment and are used in a wide variety of projects due to their simple construction and versatility. Take a look at the evolution and development of the bulldozer with   HBXG .   The world's first bulldozers? The bulldozer actually existed long before the invention of the steam engine, although it could not be considered a real machine, as it was powered by a horse-driven bulldozer plate to carry out the bulldozing function.   The world's first bulldozer. ●The true tracked bulldozer was a steam bulldozer designed by Benjamin Holt and Daniel Best for agricultural use in 1890.   ●Then, after a brief period of glory, the steam engine era was quickly replaced by the diesel engine. However, the prototype tracked bulldozer invented by Benjamin Holt survived. 1904 saw the introduction of Holt's first tracked bulldozer. 1906 saw the introduction of Holt's first diesel-powered tracked bulldozer. 1915 saw the ...

A   bulldozer   is one of the main machines of earth moving construction machinery. It is divided into two types of crawler type and tyre type according to the way it travels, but since tyre type bulldozers are less common, the following mainly focuses on the structural characteristics of crawler type bulldozers.   What are the main components of a bulldozer? A bulldozer is generally made up of seven main components.   The undercarriage travel unit.  Its components carry the weight and wear of the entire body of the bulldozer and mainly consist of "four wheels and one belt", i.e. the drive wheel, the guide wheel, the supporting wheel, the carrier wheel and the tracks.   Transmission unit. This includes the engine, torque converter, gearbox, central drive and final drive.   Hydraulic system. This includes the travel hydraulic system (variable speed torque lines, servo lines and pumps, valves and accessories (oil cooling and filtering)) and the working h...

Wheel loaders  are also known as front loaders, and these are heavy-duty machines that are typically used to load other equipment or materials using a bucket. Here's a guide to what you should know about wheel loaders before buying one for your project. What is a wheel loader? Wheel loaders are known by many names, such as front-end loaders, front-end loaders, wheel loaders, bucket loaders, shovel loaders and dump loaders. A wheel loader is a heavy-duty piece of equipment that is typically used on construction projects and building sites. A wheel loader uses an arm to raise and lower its bucket, and a crank to open and close its bucket. A wheel loader can lift almost anything, such as debris, gravel, dirt, mud, pallets, etc. Because it uses wheels, it offers better maneuverability on the road and does not cause any damage to asphalt or concrete. Attachments are also available to make it suitable for any type of project you have. Wheel loader applications Wheel loaders are machines ...

Bulldozers are important pieces of heavy equipment used in numerous industries and applications, including construction, mining, agriculture and landscaping. Bulldozers are characterized by their tractor-style bodies and sheet metal blades on the front. Some models may also have an attachment on the back to perform a variety of other functions, such as excavation. The most common attachment is the soil cracker, which acts like a giant claw. Bulldozers run on heavy-duty tracks to provide better grip and maneuverability on uneven terrain. What is a bulldozer used for? A dozer is a bulldozer designed to push large amounts of gravel, soil, sand and other loose materials. They were originally used by farmers as tractors to plow and reclaim land. Over time, bulldozers have evolved to be able to adapt to a variety of environments and applications with high efficiency. Today, bulldozers are used for everything from building roads to clearing construction sites. Types of bulldozers Bulldozers a...