Precautions for the installation of linear slide rails for screw elevators

Good installation quality is based on abiding by the installation design principles and installation steps of the screw elevator. The following are the design matters and installation steps that should be paid attention to when installing the linear slide rail.Tighten the positioning screws of the slide rail slightly in order from the center to the two sides, so that the rail is installed vertically.

The face fits slightly.The sequence is to start from the central position and tighten to both ends to obtain more stable accuracy.

After the vertical reference plane is slightly tightened, the locking force of the lateral reference plane is strengthened, so that the main rail can indeed fit the lateral reference plane.Linear bearings are mainly used in automated machinery. Of course, linear bearings and linear shafts are used together. Like linear guides, they are mainly used in mechanical structures with high precision requirements.

There is no intermediate medium between the moving element and the fixed element of the screw elevator, but rolling steel balls.Because the rolling steel ball is suitable for high-speed movement, small friction coefficient and high sensitivity, it can meet the working requirements of moving parts, such as tool rests of machine tools, carriages, etc.If the force acting on the steel ball is too large, the steel ball will be subjected to preloading for too long, resulting in an increase in the movement resistance of the bracket.There is a balance problem here; in order to improve the sensitivity of the system and reduce the movement resistance, the preload should be reduced accordingly, and in order to improve the movement accuracy and precision retention, it is required to have enough preload negative numbers, which are contradictory two. aspect.The design of the rail system strives to have the largest contact area between the fixed element and the moving element, which can not only improve the bearing capacity of the system, but also the system can withstand the impact force generated by intermittent cutting or gravity cutting, spread the force widely, and expand the bearing capacity. area of ​​force.The development of the synchronous pulley manufacturing process is largely reflected in the improvement of the accuracy level and production efficiency. Since the XNUMXs, the manufacturing accuracy of various synchronous pulleys, coupled with the improvement of tool materials, has significantly improved the hobbing efficiency.

After the new structures such as the rigidity of the tool holder and the column are enhanced, the efficiency has been significantly improved.The number of strokes of the new gear shaper can reach 2000 times per minute.The development of low-noise synchronous pulley device is some characteristics of synchronous pulley design. In order to achieve the purpose of miniaturization of the synchronous pulley device, the bearing thrust of the existing involute synchronous pulley can be improved.Various countries generally use hard tooth surface technology to increase the hardness to reduce the size of the device; the extraordinary tooth shape represented by the circular synchronous pulley can also be applied.The main drive system of the carrier-based helicopter jointly developed by Britain and France adopts the arc synchronous pulley, which greatly reduces the height of the screw lift.