The subframe of small concrete mixer is the main load-bearing part, and the load during operation is almost supported by it. In addition, the impact load formed by the bumpiness of the road and acceleration and deceleration during driving puts forward high requirements for the structure of the subframe. Let's get to know this part.
The whole subframe is composed of the main beam, the front support frame and the back support frame.
The main beam adopts an integral box structure beam, which fundamentally enhances its torsional, flexural and tensile properties, and ensures the rigidity requirements. An auxiliary beam is added between the two main beams to adjust the rigidity of each section of the main beam, so that the load is more evenly distributed over the whole length of the subframe.
In the process of driving, it is inevitable to adopt emergency braking in case of special circumstances, and the inertia force caused by this is very large. In addition, the mixing drum itself has a certain inclination angle, so the load borne by the front desk of the subframe is relatively much larger, and this part of the load is mainly added to the six bolts connecting the reducer and the front support seat. In order to prevent the bolts from being cut off and causing accidents, thrust blocks are added to the front support platform, The bolts shall not be affected by the shear force to ensure the safety of the vehicle during operation.
In order to meet the filling rate of small-scale concrete mixer, the mixing drum must meet certain inclination requirements. The mixing drum, reducer and front stage support frame have been firmly connected after assembly. Due to manufacturing error, the rear stage support frame may not meet the requirements of inclination after assembly, and cannot effectively support the mixing drum.
At this time, the whole structure is equivalent to a cantilever beam. This will produce a large torsional moment for the reducer. In order to prevent the damage to the reducer, the installation position of the supporting roller on the backstage support frame can be adjusted. Moreover, after the assembly and commissioning are completed, a fixed stopper shall be installed to prevent the deflection of the roller due to the loosening of the bolts.
Advantages of mixer truck subframe
The subframe can bring good suspension connection stiffness.
It can isolate the vibration of the road surface and bring better comfort.
Turning the suspension into an assembly component improves the versatility of the suspension and reduces the research and development cost.
The assembly components are easy to install and the assembly cost is reduced.
This is the way to know the sub frame components of the small concrete mixer. If you want to work smoothly with the mixer, you should learn more about the equipment and regularly maintain it. Come to our website for more relevant content https://www.zishangliaojiaobanji.cn Consult.