Choosing a construction two-wheeled wheelbarrow

Construction wheelbarrow is a wheeled vehicle designed to move construction materials and various loads. Purpose allows you to call it a building tool. There are various modifications of this trolley. Their main differences are the number of wheels, body material and frame design. For the efficient and high-quality performance of the assigned tasks, it is necessary to choose the right construction wheelbarrow.

The bogie modification, assuming the presence of two wheels, has indisputable advantages over a one-wheeled tool. Two wheels are two points of support that make the process of moving loads easier... Such a cart is not subject to lateral roll when loaded. This means less effort is required to manage it. A one-wheel car is prone to lateral roll due to gravity. The leader needs to apply not only pushing efforts, but also holding ones.

The disadvantage of a two-wheeled car is its reduced cross-country ability.

After the start of its movement, the operation process requires the application of a lower load. When choosing a 2-wheel construction wheelbarrow, you need to pay attention to those characteristics and features that directly affect the quality and efficiency in fulfilling the target tasks.

The main technical characteristics to look out for are:

• wheel characteristics;
• structural strength of the frame;
• side material;
• the presence of reinforcements;
• stops and footrests.

These elements are the main component of the entire construction trolley mechanism. The degree of efforts that must be applied during its operation depends on their properties.

When choosing wheels, you need to pay attention to:

• diameter;
• the nature of the amortization component;
• the mechanism of their attachment.

Larger wheels have better flotation properties... On a wheelbarrow equipped with them, it is easier to overcome obstacles on the way - the wheels do not get stuck in the mud, large stones are overcome without difficulty. The disadvantage of a large diameter is the factor of applying great efforts to create movement, especially the initial... In both cases, it is possible to overcome the negative effect of an unsuitable wheel diameter: for this, pushing forces need to be replaced by traction forces.

The nature of the depreciation component is a characteristic that includes the use of wheels on a different basis. These can be airless wheels, with an air chamber and tubeless.

The first type of wheels consists of a metal rim and a rubber or plastic molded tire.... It does not provide for the presence of air in it.This type of wheel is the least practical. The lack of an air cushion degrades the ride quality of the bogie, especially on a construction site. It is advisable to use a wheelbarrow with such wheels in places where there is a high probability of wheel breakdown on an air cushion. For example, on a site where there are a lot of glasses, nails and other sharp objects.

The second class of bogie wheels - chamber and tubeless, air cushion... They are the most practical wheels in the field. The presence of air in the tires reduces the load on the bogie itself, creates shock absorption and facilitates movement. Such propellers should be protected from piercing their rubber base.

The duration of the operating process is influenced by the mechanism for attaching the wheels to the frame. The best conditions for attachment are created by the presence of bearings at the points of contact of the wheel axle with the frame drums... The absence of rotating elements causes increased friction at the moment of loading and reduces the service life of the entire mechanism.

The frame part of the construction wheelbarrow is the basis of the entire structure. Its elements take on 80% of the load exerted in different planes. The vertical load is proportional to the weight of the transported cargo. The more weight, the more load... Therefore, when choosing a wheelbarrow, it is worth comparing the characteristics of its frame with the target nature of the work that needs to be done with its help.

Particular attention is paid to the welded joints of the frame elements. They should not have cracks, chipped "shells"... The presence of these shortcomings is a warning about the low quality of the publication and a characteristic decrease in the service life. The construction trolley handles are the part of the frame that takes on the load for deformation and twisting.

The body of the construction trolley must be made of lightweight and durable material. The best equivalent is an aluminum alloy body with a thickness of 0.5 to 0.8 mm. A mandatory property of the sides and "floor" of the body is the presence of molded reinforcements - special longitudinal bends that represent a failure of the stiffener.

When choosing a wheelbarrow, it is important to be able to distinguish between building and gardening. The first is designed for the transportation of heavy "aggressive" cargo - concrete, blocks, stones and others. The second is for moving light loads: earth, leaves, and others.

Reinforcements serve to compensate for the deformation forces acting on the wheelbarrow during operation. They must connect the frame elements in such a way as to protect them from kinking. In this case, the weight of the cart must remain within the normal range.

A good construction cart should have dump and parking stops. They can be extended parts of the frame or separate spring-frame mechanisms.

Stops are necessary to perform static work with the wheelbarrow and to facilitate the process of unloading it. The front stop allows you to lock the front of the wheelbarrow and turn it over for unloading. The rear stop mechanism allows the wheelbarrow to be positioned in the desired location in a horizontal position for loading or unloading. The presence of the above characteristics in the construction of a construction trolley creates conditions for its long-term and trouble-free operation.

In the next video, you will find an overview of the WB6418-S construction wheelbarrow.