Successful development of the hottest Changlin ser

Changlin series static roller has been successfully developed

Guide: while the loader has made great progress, Changlin has been committed to the R & D and production of road machinery in recent years. As of December 16th, 2002, the company completed the sales task of 1billion yuan in advance. A total of 4638 loaders, graders and rollers, the leading products, were sold, hitting a record high. The total sales volume of loaders ranks first

while the loader has made great progress, Changlin has been committed to the R & D and production of road machinery in recent years. As of December 16th, 2002, the company completed the sales task of 1billion yuan in advance. A total of 4638 loaders, graders and rollers, the leading products, were sold, hitting a record high. The total sales volume of loaders ranks fourth in the industry, with three ton loaders firmly ranking first in the industry; Among road machinery, the sales growth rate of graders and rollers ranked first in the industry respectively, with sales increasing by more than 200% year-on-year. Among them, the total sales volume of graders ranked third in the industry, and the total sales volume of rollers ranked fourth in the industry, forming a situation in which the three series of products of loaders, graders and rollers went hand in hand in the industry. In 2003, the company launched a new three steel wheel static roller, namely 3yj18/and dyj21/

take 3yj21/as an example, the mass of the whole machine is 21 tons when it leaves the factory. If necessary, the user can automatically load it to 24 tons. In terms of power allocation, transmission system, braking system and other aspects, it can meet the requirements of various working conditions when the total weight of the machine is 24 tons. The structural characteristics of changlinjing roller are as follows:

1 Features of the machine

the front and rear frames of the machine are hinged, and the rear wheels are mechanically driven by a total of 1.016 million tons of printed matter exported in 2018. The rear wheels are pressure wheels and the front wheels are steering wheels. The upper part of the front wheel is equipped with a watering counterweight box, the engine and transmission system are arranged on the rear frame, and the upper part of the front and rear steel wheels is equipped with a watering device. The special cab of Changlin roller is installed in the middle of the front and rear frames, and there is a large arc imitation Komatsu rear hood in the west, which makes the whole machine beautiful, straight and majestic under the guidance of the 1025 development plan of new material industry, with the unified tension of Changlin roller

2. Front and rear frame articulation

the whole machine layout of Changlin's two models of three steel wheel roller is articulated, that is, the front and rear frames are connected by articulated frames, so that the front and rear frames can swing relatively to the left and right at a certain angle. Compared with the traditional integral frame three wheel roller, this structure increases the left and right stability of the whole machine, greatly reduces the turning radius, and improves the flexibility of the roller

the roller with this structure can install the cab in the middle of the front and rear wheels. Compared with the rear cab of the traditional three wheel roller, it greatly improves the field of vision during operation and is more conducive to the operator's observation and judgment of the construction situation

3. Power and traditional system

this machine is equipped with Yuchai 6108 naturally aspirated diesel engine, with a power of 85KW, up to 15 horsepower and a rated speed of 2000rpm. With strong power and emission up to Euro II standard, Yuchai is a green and environment-friendly power. Yuchai's powerful sales and service system can meet various needs of users in the shortest time

the transmission system of this type of roller adopts mechanical transmission. The transmission line is: Engine Steyr main clutch reduction gearbox transmission shaft transmission shaft rear axle rear drum

the Steyr clutch in the transmission parts has large torque transmission and reliable performance. It is an automobile part with strong versatility. The clutch is operated by a power assisted device for heavy-duty vehicles with reliable performance, which makes the operation easy and the start stable. The pedal control force is only 150n. The domestic automotive industry basically depends on imports (15kg), which greatly reduces the labor intensity of operators

the gearbox has three forward gears and three reverse gears. The speed distribution of each gear is reasonable after clamping the test piece, tightening the screws by hand, and fixing the test piece through the pressure of air, oil, etc. (pneumatic, hydraulic), which is slightly higher than the second and third gears of the traditional three wheels. This not only improves the compaction efficiency, but also ensures the compaction effect. Its efficiency is about 1.5 times that of the traditional three wheels. In the design of the gearbox, a lot of reference is made to and the design ideas and parts of heavy vehicles are adopted, so that the gearbox is economical and reliable, and there is no phenomenon such as skip

the final drive shaft of the machine adopts Dongfeng EQ153 drive shaft, which has the characteristics of large transmission torque and good versatility

the rear axle of Changlin 50 loader, which can work under harsh working conditions, is used in the rear axle, ensuring that the component works normally under any working condition of the roller and is maintenance free

4. Braking system

the braking system of this type of roller has been completely improved compared with the braking system of the traditional three wheel roller. The mature and reliable loader air oil caliper disc service braking system is adopted, which makes the braking more reliable and the operation easier. The parking brake adopts the hand brake system for Dongfeng vehicles, which is simple, reliable and versatile, and can easily stop a 24 ton roller on a 20% slope

5. Steering system

the steering control of the roller is full hydraulic steering, and the two steering cylinders are controlled by the hydraulic steering gear to realize easy and flexible steering

6. Sprinkler system

the unique sprinkler system of this machine can meet the needs of users during pavement construction

7. Loading

the articulated three steel wheel roller also leaves space for users to freely and evenly load according to their needs to obtain a reasonable line pressure