Structural features of internal combustion forklift counterweight

Internal combustion counterweight forklifts are equipped with a counterweight at the rear, often called a "counterweight." The material of the counterweight is generally HT100 cast iron. Its main function is to balance the longitudinal overturning moment generated by the mass of the cargo during operation, thereby maintaining the longitudinal stability of the forklift.
1.Select and install

Generally speaking, the mass of the counterweight, the position of the center of mass, and the amount of rear overhang are given by the overall layout of the vehicle. The selection of the counterweight mass mainly considers the longitudinal stability of the forklift when stacking and driving with a full load. The quality of the counterweight directly affects the front and rear balance coefficients of the forklift, and is the main parameter that determines the forklift coefficient. After the total mass G of the balance weight is determined, the center of the rear axle can be used as the reference, and the installation size of the balance weight can be accurately determined according to the assembly form of the balance weight on the frame. There are two inverted V-shaped suspension blocks on the outside of the upper part of the forklift tail frame, and the balance weight can be fixed on them with two bolts.

2. Ventilation holes

Since thermal balance is a very important parameter for a forklift, poor heat dissipation performance can easily cause the engine cooling water temperature to be too high, affecting the overall performance of the forklift. Therefore, it is particularly important to balance the positioning of heavy vents, air ducts and airflow guidance. Generally speaking, the higher and larger the vent holes are, the better for heat dissipation; the rounded transition between the vent holes and the radiator is used to facilitate airflow conduction and improve heat dissipation performance.

3.Departure angle

The departure angle of the lower end of the balance weight is also very important. This angle is mainly to avoid friction between the lower end of the balance weight and the ground when going up or downhill. Theoretically, the departure angle is equal to the climbing angle of the specific vehicle model. The position of the cut-off point at the lower end of the balance weight should be determined according to the climbing degree of the specific vehicle model and the amount of rear overhang of the balance weight.

4. Lifting hole location

The position of the two lifting holes of the counterweight is also very important. For the convenience of lifting, the two lifting holes should be symmetrically arranged on the left and right sides of the center line of the balance weight, and the front and rear directions should be in line with the center of mass of the balance weight. Some balance weights use lifting lugs, and the position is determined for the same reason.

5.Outer contour

The balance weight has an impact on the appearance of the entire vehicle, so its outer contour must satisfy the style of the entire vehicle. When designing a complete vehicle, important parameters such as vehicle length and turning radius should also be considered, among which turning radius is more important than vehicle length.
When designing the balance weight, you first need to pay attention to matching the positions of the frame, roof guard, internal combustion engine cover, and water radiator, so that the lines are connected smoothly and the overall style is unified. Secondly, the gap between the balance weight and the tire should be considered. Especially after one side of the forklift is raised, the gap between the tire and the balance weight should also meet the requirements.