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Modern office chair

Q:Mechanical structure and principle of automatic focusing lens for camera: The principle of the infrared ranging method is that the camera takes the initiative to emit infrared light as the distance measuring light source and the geometric relation between the infrared LED, and then calculates the focusing distance.

Q:The working principle of the bolt tensioner: During operation, the high-pressure oil output by the power source is conveyed to the piston cylinder 3 by a high-pressure hose, and the piston in the piston cylinder moves upward under the action of pressure to drive the stretching nut upwards. The nut and bolt tensile work thread, thereby stretching the working bolt, the bolt elongation reached the required amount of deformation, deformation control in the elastic deformation range, then the pre tightening or disassembling operation, finally through the hydraulic or mechanical return the work bolt return to its original shape, finish the homework.

Q:Mechanical principle of belt expansion machine: Principle: the telescopic belt conveyor adds a telescopic mechanism to the ordinary belt conveyor, so that the belt conveyor can be freely extended in the length direction.

Q:Is the construction of the water supply steel pipe a telescopic device?: The trench excavation method should be carried out before the investigation and study, fully understand the channel section of the soil, underground water, underground structures, underground trench near building and construction environment, find the problem timely contact with the construction unit, research on treatment measures. In order to prevent over excavation, the groove should be laid out before excavation, and the excavated layer shall be excavated at intervals according to the opening slope, and the excavation depth shall be measured at any time.

Q:What is a limiter?: To understand what a limiter is, you should first know what a telescoping device is The expansion device is also called expansion joint, expansion joint, compensator and expansion joint. Expansion device capable of axial expansion in a certain range, the offset can overcome different axial pipe butt within a certain angle and produce, installation and convenient disassembly pipeline valve greatly, in the pipeline to allow expansion in free expansion, once over its largest expansion amount rise to limit, to ensure the safe operation of pipeline the

Q:How to achieve telescopic power arm: Pneumatic, cylinder. There is an electromagnetic valve, an air compressor.

Q:What are the main uses of a bolt tensioner?: He is elastic, in his range of elasticity can be stretched, and generally does not hurt the threaded bolt tensioner, high precision, high tensile bolt General requirements is the most appropriate, domestic stretcher good brand, I recommend Prima, quality customer service is good, and I hope to you help!

Q:What is the automatic telescopic function of an automatic umbrella?: The most important thing about the design of a fully automatic long handled umbrella is the choice of the elastic potential energy device between the upper and lower springs. The traditional semi automatic long handle umbrella pushes the slide block upwards through the pretightening force between the springs between the two sliders so as to realize the opening of the long handle umbrella. Therefore, it is proved by experiments that if a spring is added to the slider, and whether the slider can move downward similarly, the experiment shows that the umbrella can be closed. Then, the following work is how to determine the size difference and working state of the two spring preload.

Q:What are the main uses of a bolt tensioner?: But the general does not hurt the threaded bolt tensioner, high precision, high tensile bolt General requirements is the most appropriate, domestic stretcher good brand, I recommend Prima, quality customer service is good, and I hope to help you!

Q:What kind of materials are used in the telescopic equipment of machinery industry?: The most common form of bond failure is shear. So the key requires enough strength and steel. No. 45 is the most commonly used steel.

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