First, product positioning and core application: professional wetland operation, suitable for multi-scene projects.

Shanbo SD16 bulldozer, as a special bulldozer with mechanical transmission for wetlands, is also the core heavy construction machinery in the field of engineering construction. Its original design intention is to build special soft terrain such as wetlands and muddy land and high-intensity earthwork scenes. In practical engineering, it is widely used in site leveling of construction sites, foundation pit excavation and earthwork backfilling, slag cleaning in mining, subgrade paving, river dredging in farmland water conservancy reconstruction, dam construction, and earthwork pushing in the early stage of subgrade compaction in highway and railway construction.

Different from ordinary bulldozers, its "wetland-specific" characteristics are mainly reflected in its super adaptability to soft ground-it can not only run stably in a wetland environment with high water content and low bearing capacity to avoid falling into the ground, but also efficiently complete the pushing, gathering and leveling operations of various materials such as soil, gravel, gravel and construction waste with strong working ability, laying a solid foundation for subsequent engineering procedures. It is an indispensable core equipment in complex terrain and heavy earthwork engineering.

Second, the transmission system: planetary gear structure, hydraulic control shift, stable and efficient.

The transmission core of Shanbo SD16 bulldozer adopts planetary gear gearbox with hydraulic control valve operation mode, which completely revolutionizes the operation experience and transmission efficiency of traditional mechanical gear shifting. With the design advantages of multi-gear meshing, the planetary gear structure has a wider transmission ratio and more stable power transmission compared with the common fixed-shaft gear structure, and can distribute the strong power output by the engine to the traveling mechanism as required to avoid power interruption or loss. Even under heavy load working conditions such as earth pushing and climbing, the transmission system can maintain stable operation, and gear slippage, seizure and other failures are not easy to occur.

In terms of operation control, the hydraulic control valve is used to switch forward, backward and all gears. The driver can accurately control the action of the gearbox only by gently pushing the joystick, which greatly reduces the operation intensity, avoids the complexity and labor of traditional mechanical gear shifting, and can reduce hand fatigue even if working for a long time. At the same time, the gearbox adopts the combined design of multi-disc clutch+hydraulic combination+forced lubrication: multi-disc clutch can realize the smooth engagement of power through the combination and separation of multiple sets of friction plates, reduce the shift impact and protect the gear and clutch components; The forced lubrication system can continuously deliver lubricating oil to key transmission parts such as gears and bearings, take away the heat generated by friction, avoid the parts from being worn due to high temperature, and significantly prolong the service life of the gearbox.

In addition, the gearbox is equipped with three forward gears and three reverse gears, and the gear matching is scientific and reasonable: the low gear (the first gear) has strong torque output, which is suitable for heavy-duty bulldozing, climbing steep slopes or working slowly in muddy wetlands to ensure that the whole machine still has enough power in a high-resistance environment; Medium speed gear (2nd gear) gives consideration to both power and speed, and is suitable for most daily earthwork pushing and site leveling operations; The high-speed gear (3rd gear) runs faster, which is suitable for long-distance site transfer or light-load material transfer, greatly improving the operation flexibility and overall construction efficiency under different working conditions.

Third, cooling system: closed pressure design, forced air cooling, efficient temperature control.

In order to ensure the stable operation of the whole machine in high-load and high-temperature environment, Shanbo SD16 bulldozer adopts a closed cooling system, which forms a closed space between the water tank and the cooling circuit through a special sealing structure, so that the inside of the water tank is always kept at a specific pressure value. This design can effectively increase the evaporation temperature of the cooling water, prevent the cooling water from boiling prematurely in a high temperature environment, and at the same time enhance the heat dissipation efficiency of the cooling system-even when the engine is operating at full load in summer, it can quickly take away the heat generated by the engine and hydraulic system, ensure that the temperature of the core components of the whole machine is stable in a safe range, and prevent problems such as power drop and component damage caused by overheating.

The power of the cooling fan of the cooling system is directly taken from the engine, and it is linked with the engine speed through the transmission mechanism to realize "air supply on demand": when the engine load increases and the temperature rises, the fan speed rises synchronously, forcibly sucking in cold air from the outside, and exchanging heat with the cooling water through the radiator of the water tank, thus greatly enhancing the cooling effect; However, when the engine is running at low load and the temperature is low, the speed of the fan is reduced accordingly, which reduces unnecessary power consumption and gives consideration to heat dissipation efficiency and fuel economy. Compared with natural heat dissipation, this forced air cooling method has the advantages of faster heat dissipation and more accurate temperature control, and is especially suitable for harsh working environments with high temperature and high dust, such as mines and summer open-air construction sites.

Working hydraulic system: mainstream high-pressure design, low failure rate+overload protection, safe and reliable.

Shanbo SD16 bulldozer is equipped with 14MPa mainstream working hydraulic system. This pressure parameter has been verified by a large number of engineering practices, which can not only meet the high-intensity operation requirements of working devices such as bulldozers and scarifiers (such as the strong cutting and lifting of bulldozers and the breaking of hard soil and gravel by scarifiers), but also effectively reduce the workload of hydraulic components. Compared with higher pressure hydraulic system, 14MPa pressure design can reduce the risk of wear and leakage of hydraulic pump, hydraulic valve, oil pipe and other components, significantly reduce the failure rate of hydraulic system, and reduce the later maintenance cost and downtime.

At the same time, the hydraulic system is equipped with overload protection function. When the load exceeds the system's bearing capacity during operation (for example, the bulldozer encounters a hard obstacle and the scarifier cuts too deeply), the system will automatically trigger the protection mechanism-release the excess pressure through the overflow valve to prevent the hydraulic components from being damaged due to overload and ensure the long-term stable operation of the hydraulic system. This function not only prolongs the service life of hydraulic components, but also prevents sudden situations such as jamming of working device and flameout of the whole machine caused by excessive load, and improves the safety and continuity of operation.

Electrical system: high-quality components+integrated design, low fault+high aesthetics, giving consideration to practicality and experience.

In the design of electrical system, Shanbo SD16 bulldozer reduces the failure risk from the source: waterproof connector can effectively isolate external moisture and dust from entering the connection part, and avoid the problems of short circuit and poor contact caused by moisture and dust, especially suitable for wet and rainy working environment; Compared with the traditional relay, the new relay has stronger oxidation resistance, more stable on-off performance, longer service life and fewer core fault points in the electrical system. Equipped with injection molding instrument, the instrument shell adopts integrated injection molding process, which has better sealing performance, can prevent the influence of dust and vibration on internal components, and display data more clearly, which is convenient for drivers to read in real time.

What's more worth mentioning is that the electrical system adopts integrated instrument box design-air conditioning control module, various electrical switches (lights, wiper, working device control) and instruments (tachometer, water temperature meter, oil pressure meter, fault indicator) are integrated in the same instrument box. This design not only makes the cab layout more regular, reduces the hidden trouble caused by messy lines, but also improves the overall aesthetics and luxury of the cab. Drivers do not need to find scattered buttons frequently when operating air conditioners and switching electrical functions, which makes the operation more convenient and greatly improves the driving experience.

 The frame and suspension system: full box structure+eight beams, strong load+high stability, suitable for complex working conditions.

1. Full-box main frame: high-strength welding, impact resistance and torsion resistance, long service life.

The main frame of Shanbo SD16 bulldozer adopts the whole box structure welded with steel plate, and is directly welded with the rear axle box to form a rigid whole frame. Compared with the traditional open frame, the full-box structure greatly improves the bending and twisting resistance, and can effectively bear the impact load generated in the operation process (such as the bulldozer hitting obstacles and the whole machine bumping in rough terrain), so as to avoid the deformation and fracture of the frame.

In the manufacturing process, the main frame is made of high-strength wear-resistant steel plate, and the key welding parts are precision welded with high-quality welding wire. The weld bead is full and firm, and the welding quality is ensured through strict nondestructive testing (such as X-ray flaw detection and ultrasonic testing). This high-strength design and high-quality technology can ensure the stability of the main frame in the whole life cycle of the whole machine (usually up to several years or even more than ten years), without frequent maintenance or replacement, and reduce the long-term use cost of users.

2. Eight-beam swing balance beam suspension: stable force transmission, improving the stability of complex working conditions.

The whole machine is equipped with an eight-beam swing balance beam suspension system, one end of which is connected with the main frame and the other end is connected with the walking system (crawler frame) as a "buffer and force transmission bridge" between the frame and the walking system. In the process of operation, it can evenly transfer the working load (such as the earth-moving resistance of the bulldozer) and the impact load (such as the impact force generated by the crawler rolling the raised stones) to the main frame, so as to avoid the damage of components caused by local stress concentration.

At the same time, the swing balance beam has a certain swing amplitude. When the whole machine works in rugged terrain (such as potholes and gravel piles), the balance beam can swing flexibly with the change of terrain, so that the crawler can always keep a good fit with the ground and reduce the situation that the crawler is suspended or skidded. Compared with the ordinary suspension structure, the eight-beam design further enhances the bearing capacity and stability of the suspension system, which can effectively improve the driving stability and operating smoothness of the bulldozer under complex working conditions, and can ensure the efficient and safe operation of the whole machine even in harsh terrain such as mines and mountains.