Germany Maedler shaft Maedler model Maedler price

Maedler shaft is the most important component in an engine. It bears the force transmitted from the connecting rod and converts it into torque, which is output through the crankshaft to drive other accessories on the engine. The crankshaft is subjected to the combined effects of centrifugal force from rotating masses, periodically changing gas inertia forces, and reciprocating inertia forces, causing the crankshaft to bear bending and torsional loads. Therefore, the crankshaft is required to have sufficient strength and stiffness, the journal surface needs to be wear-resistant, operate smoothly, and have good balance.

Maedler shaft introduction

The most important component in an engine. It bears the force transmitted from the connecting rod and converts it into torque, which is output through the crankshaft to drive other accessories on the engine. The crankshaft is subjected to the combined effects of centrifugal force from rotating masses, periodically changing gas inertia forces, and reciprocating inertia forces, causing the crankshaft to bear bending and torsional loads. Therefore, the crankshaft is required to have sufficient strength and stiffness, the journal surface needs to be wear-resistant, operate smoothly, and have good balance. To reduce the mass of the crankshaft and the centrifugal force generated during motion, the crankshaft journals are often made hollow. Oil holes are drilled on each journal surface to introduce or discharge engine oil for lubricating the journal surface. To reduce stress concentration, transition arcs are used at the connections between the main journals, crank pins, and crank arms. The function of the crankshaft counterweights (also known as balancing weights) is to balance the rotating centrifugal forces and their moments, and sometimes also to balance the reciprocating inertia forces and their moments. When these forces and moments are balanced themselves, the counterweights can also be used to reduce the load on the main bearings. The number, size, and placement position of the counterweights must be considered based on factors such as the number of engine cylinders, cylinder arrangement, and crankshaft shape. Counterweights are generally cast or forged integrally with the crankshaft; for high-power diesel engines, counterweights are manufactured separately from the crankshaft and then connected together with bolts.

Maedler shaft classification

Flexible shafts are divided into 3 types: wound type, universal joint type, and spring type. 1) Wound type flexible shaft: consists of a wire (or steel strip) shaft, a hose, and shaft connectors. The wire shaft is wound with 4 to 10 layers of high-carbon steel wire; the outermost layer is generally left-hand wound, and the torque is mainly borne by this layer. The direction of rotation of the shaft should be such that this layer is tightened (forward rotation); during reverse rotation, it can only bear about 15% of the forward torque. If the outer layer is tightly wound with thick steel wire, the borne torque can be increased by 70 to 80%. The structure of the steel strip shaft is similar to that of the wire shaft. The hose is mostly rolled from formed steel strips and is mainly used to store lubricant and prevent dust. Wire shaft connectors are used to connect two shafts, and hose connectors are used to connect the support parts of two shafts. Connectors are integrated with the shaft and tube through welding or threaded connections, and there are various connector types. 2) Universal joint type flexible shaft: composed of many shaft joints connected together, including ball-tube shaft joints and column-fork shaft joints, etc., which can adapt to shaft bending; the more joints, the greater the flexibility. 3) Spring type flexible shaft: a long cylindrical helical spring, with various tools installed at one end to perform different operations; this type of shaft does not require a hose.

Maedler shaft advantages

The advantages of flexible shafts are easy installation, compact structure, convenient movement, and the ability to transmit motion and power over long distances. They are mostly used for transmissions with high speed and low torque, such as driving handheld sandblasters and grinders, automotive tachometers, and starting valves and switches of certain devices. However, flexible shafts have low torsional stiffness; if there are large changes in direction and large torque fluctuations, the non-uniformity of the driven end speed is also large. Under normal circumstances, the power that a flexible shaft can transmit does not exceed 5.5 kW; the torque without bending does not exceed 50 N·m, and the speed can reach 20000 rpm. During use, the speed depends on the shaft diameter and the bending radius during operation. Before use, the connectors must be firmly connected, and regular cleaning and lubrication are required. 1) The mandrel maintains a large contact area with the hole, resulting in higher positioning accuracy; 2) Uses the elastic deformation of the spring collet to center and clamp the workpiece, resulting in higher positioning accuracy; 3) The fit clearance of the positioning surface affects positioning accuracy; 4) Uses Pascal's principle to elastically deform the thin-walled sleeve to center and clamp the workpiece, with high positioning accuracy and coaxiality reaching 5μm; 5) Can reduce the clamping deformation of thin-walled sleeve workpieces and improve machining accuracy; 6) Has a positioning interference fit of 0.002mm, achieving extremely high positioning accuracy.

Weidou Intelligent Technology specializes in selling German Maedler rotating shafts, Maedler mandrels, Maedler drive shafts, Maedler crankshafts, Maedler straight shafts, Maedler flexible shafts, Maedler solid shafts, Maedler hollow shafts, Maedler rigid shafts, Maedler flexible shafts, Maedler polished shafts, Maedler stepped shafts, Maedler spindles, Maedler rotating mandrels, Maedler fixed mandrels, Maedler original imports from Germany. Welcome customers to inquire and order.