The working environment temperature of the hard-toothed cylindrical gear reducer has an impact on the selection of gear accuracy levels. The specific analysis is as follows: The problem of thermal deformation in high temperature environment: When the working environment temperature is high, such as in the hot rolling workshop of the steel plant, near the glass furnace, etc., the gears of the reducer will undergo dimensional changes due to thermal expansion. High temperatures may cause changes in the gear tooth shape and pitch, causing the gear meshing accuracy to decrease. In order to ensure that good transmission accuracy and stability can be maintained at high temperatures, a higher accuracy level needs to be selected to reserve sufficient accuracy margin to compensate for the error caused by thermal deformation. Changes in lubricating performance: High temperature will reduce the viscosity of the lubricating oil, affect the lubricating effect, resulting in increased friction between gears and intensified wear. This may increase the surface roughness of the gear and uneven wear of the tooth surface, which in turn affects the transmission accuracy of the gear. Therefore, in high temperature environments, in order to reduce the impact of wear on accuracy, it is also more likely to choose higher precision, etc. Read More

The core differences in the reduction principle of the three reducers, gears, worm gears, and planets, are mainly reflected in the transmission method, torque change characteristics and self-locking performance. The specific details are as follows: Transmission method Gear reducers: Gear reducers: use gears with different teeth meshing each other to transmit power. The driving gear (small teeth) drives the driven gear (more teeth) to rotate, and the speed is reduced based on the difference in the number of teeth. For example, a 10-tooth active pinion drives the driven gear with 30-toothed large gear. The driving wheel rotates for 3 turns, and the driven wheel rotates for 1 turns to achieve the purpose of deceleration. Worm gear reducer: Rely on the interaction of the spiral line of the worm and the tooth shape of the worm gear to drive. When the worm is rotated, its spiral teeth push the worm gear to rotate. Because the worm spiral rise angle is small, the worm gear rotates more than one turn, achieving a significant slowdown. Planetary reducer: The main transmission components are sun gear, planetary wheel, ring gear and planet carrier. The solar wheel inputs power, which drives the planet wheel rotation and rotation, Read More

The number of planetary wheels in a planetary reducer usually affects its noise level, as follows: From the perspective of vibration and impact, when the number of planetary wheels is small, due to the relatively small logarithmic number of gear teeth participating in meshing, the load on a single gear teeth is relatively large when transmitting the same torque. When the gear enters and exits the meshing, the impact and vibration generated are relatively obvious. This impact and vibration will be transmitted to the housing of the reducer through the gears, shafts, bearings and other components, thereby generating greater noise. For example, in some small planetary reducers that only use 2 planetary wheels, a strong gear meshing impact sound can be clearly heard during the start and stop. When the number of planetary wheels is large, multiple planetary wheels mesh with the sun gear and the ring gear at the same time, which is equivalent to increasing the number of meshing points, so that the load can be distributed more evenly on multiple gear teeth. In this way, during gear transmission, each gear tooth bears relatively small load, and the meshing between gear teeth is flattered Read More

There are mainly the following methods to adjust the eccentric sleeve of the cycloid pin wheel reducer to change the movement trajectory of the cycloid wheel: The operation steps of the adjustment method of the locking screw: First, remove the relevant protective cover on the bearing or reducer to expose the eccentric sleeve. Find the locking screw on the eccentric sleeve and loosen it, then slide the eccentric sleeve along the direction of the axis as needed to change its axial position, thereby adjusting the eccentricity to achieve the purpose of changing the movement trajectory of the cycloid wheel. After the adjustment is completed, be sure to re-tighten the locking screws to secure the eccentric sleeve. Note: Be careful during the operation to avoid damaging the eccentric sleeve, shaft and other related components. Adjustment should be carried out slowly, and the movement changes of the cycloid wheel should be observed while adjusting to ensure the accuracy and accuracy of the adjustment. Washer adjustment method operation steps: Take out the spacer between the bearing and the shaft or between the bearing and the bearing seat, measure its thickness and record it. Change the degree of movement of the cycloid wheel as needed, choose Add Read More

The eccentric sleeve structure of the cycloid pin wheel reducer has a crucial influence on the movement of the cycloid wheel, which is as follows: The rotation of the cycloid wheel: The existence of the eccentric sleeve causes the center of the cycloid wheel to move around the axis of the input shaft, that is, to produce revolutions. When the input shaft rotates with an eccentric sleeve, the cycloid wheel will rotate in the needle tooth shell as the eccentric sleeve rotates. Realize the rotation of the cycloid wheel: Since the cycloid wheel meshes with the needle teeth on the needle tooth shell, while revolution, the cycloid wheel will also rotate around its own axis. This rotational movement is caused by the relative movement between the cycloid wheel and the needle teeth. Determine the movement trajectory of the cycloid wheel: The eccentric distance of the eccentric sleeve determines the movement trajectory of the cycloid wheel. The larger the eccentric distance, the larger the radius of the cycloid wheel, and the more its motion trajectory deviates from the axis of the input shaft. On the contrary, the smaller the eccentric distance, the closer the movement trajectory of the cycloid wheel is to the axis of the input shaft. Influence the rotation speed of the cycloid wheel: structural parameters of the eccentric sleeve Read More

Gear reducers usually consist of basic components such as box, gear, shaft, bearing, bearing end cover, bolts and nuts. Some reducers may also include some accessories, such as inspection holes, ventilators, positioning pins, oil surface indicators, oil drain screws, box opening screws, etc. The following is a specific introduction to each part: The function of the box and the box cover: The box and box cover are the support and inclusion parts of the transmission parts in the reducer. They bear pressure and require good stiffness, vibration damping and sealing to ensure the normal operation of the reducer. Materials and manufacturing technology: When single-piece small batch production, grey cast iron material (HTl50 or HT200) can be used to cast and form by hand molding; carbon structural steel (Q235A) can also be used to weld by manual arc welding. During mass production, gray cast iron is generally used and cast to form a shape using machine molding. Gear function: Gear is one of the most important transmission parts in the reducer, passing through teeth of different teeth Read More