Advantages and disadvantages of dn800 pneumatic soft seal wafer butterfly valve Do you know the application of rubber pneumatic butterfly valve in bulldozers??
When it comes to rubber pneumatic butterfly valve, you will surely think of its application in automobiles as the first response. Do you know its application in bulldozers? Now follow us to have a look. There are two main contents:
First: At present, there are many kinds of damping pads for the starter, and rubber damping pads have been widely used in the field of vibration and noise reduction of the starter due to their advantages such as small size, low cost, and easy adjustment of elasticity and stiffness. Therefore, almost all the supports of bulldozer diesel engines use damping rubber at present. The rubber vibration damping is applied at the support part, and the separation surface is highly requested, and the high temperature resistance and oil erosion resistance should also be paid attention to. Not only pay attention to the vibration isolation when the diesel engine is rotating at high speed, but also pay full attention to the vibration isolation when the diesel engine is idling, starting, stopping, and preventing the resonance of all parts of the engine body. It is an example of rubber support used for a high-power diesel engine. The diesel engine has a power of 735KW, a mass of 5.7t, and four points of support are used on the rack. The shape of each rubber support is shown as a bonded rubber with oil resistant surface. The rubber support itself is arranged at an inclination of 30 °. When disassembling the diesel engine, it can be taken out from the horizontal plane between the side feet of the diesel engine and the side of the engine body. After the diesel engine is installed, the diesel engine and the engine body are level. The second diagnosis process of bulldozer's weakness is: the application effect on the track guide wheel. Taking the rubber damper installed at the guide wheel of a crawler bulldozer as an example, the installation position of the rubber damper is shown, indicating its shape. Its shape is like a wedge shaped "sandwich", which is used to cushion and reduce vibration in both vertical and horizontal directions. Pneumatic butterfly valve structure damping rubber working temperature: - 30~60 ℃; Maximum amplitude of vibration load: 270KN; Load frequency: 012~200Hz; Operating frequency of main load: 4 ~ 8Hz. For small amplitude vibration loads, the shock absorber can absorb more than 80% of the vibration energy; For the impact load, more than 50% of the impact energy can be dissipated.
The above is the simple arrangement of Songxia Xizhen pneumatic butterfly valve. I believe that you also have some control, and I hope to help you. If you want to know more, you can call the staff of the manufacturer to provide you with satisfactory answers.
Selection of bellows data for compensators Understand the classification of metal circular compensators
Direct buried corrugated compensator, also known as direct buried corrugated pipe, direct buried two-way expansion joint, JZM type direct buried corrugated compensator, is mainly applicable to axial compensation, and has super bending resistance ability, so the influence of pipe sinking is not considered. This product has the ability to compensate transverse displacement and axial and transverse combined displacement, but because of the small compensation amount, it can only play its characteristics as axial compensation, and has a longer service life, more security and reliability.
In general, the data of bellows selection shall meet the following conditions:
(1) High elastic limit, tensile strength and fatigue strength ensure normal operation of bellows.
(2) Good plasticity, convenient for processing and forming of bellows, and sufficient hardness and strength can be obtained through subsequent treatment processes (cold work hardening, heat treatment, etc.).
(3) Good corrosion resistance, meeting the working requirements of bellows in different environments.
(4) Good welding performance, meeting the welding process requirements of bellows in the manufacturing process.
Metal circular compensator is also called metal compensator, wave compensator corrugated contraction joint, metal corrugated compensator and metal expansion joint. According to the nominal diameter, there are 30 types of DN200~DN1000 specifications, including single wave, double wave and triple wave (30 types for each). There are 12 types of circular single wave sealed compensator with DN400~DN1400 specifications. It is mainly used for high, medium and low temperature hot air pipes and high frequency mechanical vibration pipes. It has good flexibility, good corrosion resistance, high temperature resistance and shock absorption, and can absorb the axial and lateral displacement of pipes. classification
Circular single wave compensator, circular double wave compensator, circular three wave compensator, circular single wave sealed compensator.
effect
Ordinary pressure pipes must use metal circular compensators. Metal circular compensators can avoid explosion hazards caused by excessive pipe capacity. Bellows expansion joints play the role of stretching two pipes. If the pipe pressure is too high, the expansion joints automatically shrink, sometimes called contraction joints. Conversely, if the pipe pressure is too low, the expansion joints automatically retract to maintain the balance of the pipes.