The role of piston pin and connecting rod and installation method
The role of the piston pin is to connect the piston and connecting rod and transmit the interaction between them. The role of the connecting rod is to connect the piston and the crankshaft, transmitting the force between them, and converting the reciprocating linear motion of the piston into the rotational motion of the crankshaft. Today, think about the role and installation method of the forklift piston pin and connecting rod and the matters needing attention. First of all, when assembling, there should be a certain degree of tightness between the piston pin and its seat hole. Usually, the piston is first placed in 70~90°C water or oil to heat, and then the surface of the pin is coated with engine oil and pushed with the force of the thumb. Then install two locking rings in the locking ring groove of the piston. Secondly, since the connecting rod is fitted with a small head and a piston pin, a bronze bushing is installed in the small head, and the hole and the slot in the small head and bushing can store oil. The large head consists of two semi-circular parts. The separated semi-circular parts are called connecting rod caps. The two parts are fastened with high-strength refined bolts. The assembly should be tightened according to the specified torque. There are oil holes and oil grooves on the connecting rod bearings. When installing, the oil holes should be aligned with the oil on the big end of the connecting rod so that the ejected oil can be thrown toward the cylinder wall. At the same time, when selecting the piston pin, it is necessary to pay attention to the following points: As the piston pin is used to connect the piston and the connecting rod, the force that the piston bears is transmitted to the connecting rod or vice versa. The piston pin is subjected to a large cyclical impact load under high temperature conditions, and the lubrication condition is poor because the piston pin does not have a large swing angle within the pin hole and it is difficult to form a lubricating oil film. For this reason, the piston pin must have sufficient rigidity, strength, and wear resistance, and the mass should be as small as possible, and the pin and pin hole should have proper fit clearance and good surface quality. In general, the rigidity of the piston pin is particularly important. If the piston pin is bent and deformed, the piston pin seat may be damaged.
Product Profile Large energy saving ceiling fans are green energy saving products of the 21st century. It has many advantages, such as powerful, no noise, zero pollution, low energy consumption. It is very popular for large masses of users. It is not only mainly used in steel structure plant, logistics warehouse, farm and other large enterprise buildings, but also agricultural markets, gymnasiums, waiting rooms, exhibition halls and other large public buildings. A large energy-saving ceiling fans with a speed of 50 revolutions per minute 1 to 3 meters per second to make the human body feels the best wind speed. A breeze from all directions gently caresses the body and increases the evaporation of human sweat. The cooling effect of 5 to 8 degrees is similar to the comfort presented by the natural breeze, which can not be matched by other fans. It is an ideal choice for indoor, ventilation and cooling in summer to remove humidity and heat. Only seven degrees of electricity per day, it can be cool for a whole summer. Energy saving comparation In summer, the sun shines directly and the indoor temperature is more than 40 degrees on average. Common industrial exhaust fans can only increase the indoor temperature. Industrial air conditioners consume thousands of kilowatts of energy every shift. There is no obvious unenclosed cooling in the space, which also increases the operating cost of enterprises. The emergence of a large energy saving ceiling fan brought the perfect solution. An energy saving fan with a diameter of 7.2meters can push the air to produce a large amount of winds effectively. The continuously rotating blades of circular form an airflow field with an effective area of 600 to 800 square meters. No other device has not yet been compared. The large energy-saving ceiling fan praduced by Linter technology has the characteristics of high reliability, feasibility and low power consumption. The controller unit used the stability of the energy-saving inverter system. In practice, the average power consumption is less than one killowatt per hour. It can guarantee more than 5,000 hours of uninterrupted operation. Linter7200 of a large energy-saving ceiling fan can cover the area of about 50 small fans of 0.75 megabytes worked. In a factory of 9000 square meters, if full coverage is to be achieved, it needs about 300 small fans or industrial 6 energy-saving fans. According to the use of four years, every eight months, every day for ten hours, can be run for 10,000 hours, about 90000kw power consumption, than the small wind 1080000kw, save 990000kw, save energy by 92%. When meeting the extreme high temperature climate, the large energy saving fans and air conditioners are used together, it will be coller. Using A large energy-saving ceiling fan for air supply can not only save the air conditioning tube, but also save more than 30% energy. Attentio Lectotype The building structure: H-shaped steel, I-shaped steel, Mixed steel square bar spherical column spherical structure. The total height of the building is more than 4, 0m, less than 15m. 1, 0m. The minimum distance between the fan and the roof is 1, 0m. The minimum safety distance between the fan blades and the obstacle is 0, 3 m. The distance between the fan blades and the wall on both sides is more than 1, 5 m. Effects of various environments on fan performance. Open space, promotes air circulation. Indoor airflow circulation in enclosed spaces is suitable for use with air conditioning. In a multi-fan environment, due to the low wind speed, caused by the fan, there will be no cyclones. The distance between the two fans will be separated before the wind will not cancel, and the coverage area will be increased at the same time. Company Information HongFa automatic door Technology (Shenzhen) Co., Ltd is a high-tech enterprise which engages in the development of advanced world-class automatic doors. Our main products include industrial fast rolling door, industrial PVC rolling door, industrial PVC rolling door, fast rolling door, rolling door, fast rolling door, rolling door, industrial automatic lifting door, industrial automatic lifting door, automatic vertical hinged door, automatic stainless steel door, automatic doors, automatic doors, electric folding gate, rolling door, automatic doors, automatic doors, automatic doors, automatic doors,
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