Steel material (W series) and magnetic conductor (H series) trigger, wide frequency response, good stability, strong anti-interference, high sensitivity, high product reliability, strong anti-interference ability, strong seismic resistance, durable, stable output of high and low electric square wave signal. Starting from zero speed, more than 30,000 pulses p…
? fixed pulleyFixed pulley features: no effort, but can change the direction of the power. (Essentially an equal arm lever).Definition: a pulley with a fixed shaft in the middle.② Essence: the essence of the fixed pulley is: equal arm lever③ Features: The use of fixed pulley can not save effort but can change the direction of the power.Movable pulleyPu…
?. FunctionAs a close partner of the bearing, the bearing seat plays an important role in the entire shafting. It is generally located at both ends of the shaft, and its main function is to support and fix the bearing, so that the shaft and its connecting parts have a certain position relationship. In addition, the bearing seat is generally equipped with a…
? drum is one of the main mechanical castings of gantry crane equipment. Its material is HT200. The blank dimensions are φ528 ×1 660(mm), the wall thickness is 36 mm, and the weight of a single piece is 950 kg. There is an inner flange 100 mm away from each end. The outer circle, end face, and inside of both ends to the flange need to be machined. The or…
Folding drum is widely used and plays an increasingly important role, so the correct use of folding drum is very important to prevent accidents such as equipment damage. The following are some technical requirements for the use of folding drum:(1) The flange of the folding drum shall be kept perpendicular to the wall of the drum under all conditions, even un…
(1) Add fast return to zero function. When the tool starts processing from one end to the other end along the z axis, the tool needs to return to the starting point along the z axis to restart the processing, which can increase the Z-direction rapid return to zero function to reduce the auxiliary time and improve the processing efficiency.(2) Multiple tools …
? A lathe with a diameter of 4.5m is reformed by using the x and z axes linked with the spindle CNC machining method, and then according to the design of the folding reel, the CNC machining of the rope groove of the folding reel is started.Here is introduced x, z two axes with the spindle linkage CNC machining method, the principle is shown in the followin…
? (1) Inner holeThe inner hole is the main surface of the bearing seat for support and positioning, and it is matched with the bearing outer ring. The dimensional accuracy of the diameter of the inner hole is generally 7 levels, and the accuracy of the high precision is generally 6 levels. The shape accuracy of the inner hole is generally controlled within…
? drum device is a lifting mechanism in lifting machinery winding steel wire rope components, is also an important force components.Classification of drum groupsThe drum group is classified from the material, according to the size of the lifting weight and the working condition, it is divided into casting drum and steel plate welding drum. Casting drum is …
1. Design reasonsCoupling type is reasonable, torque is satisfied, R Angle is appropriate.2. Manufacturing reasonsWhether the material is correct, there are no defects, whether the processing circle jump is satisfied, and whether the R Angle processing is in place.3. Reasons for arrangementWhether the two drum shafts at both ends of the synchronous coupling …
? The steel wire rope must be fixed on the drum reliably, easy to check, assemble and disassemble, to avoid excessive bending of the steel wire rope at the fixed place. At present, there are three commonly used fixing methods:1, fixed with a pressure plateThis method (as shown in Figure a) has the advantages of simple structure, convenient assembly and dis…
? Crane users need high-quality steel wire rope, which should be a steel wire rope with a long service life and a high degree of stability and reliability. The main reason for the failure of the steel wire rope used in the atmospheric environment is fretting fatigue. At present, the world's steel wire rope field takes preventive measures against frett…
