1 Introduction The river crossing equipment is the special equipment for the supply of oil to the oil pipelines, and the oil pipelines are used to temporarily cross the rivers and lakes to supply oil to the opposite shore. Its transmission and technical system is mainly realized by the liquid tray system. The hydraulic system has a fixed reference value. 2 The product composition and the use of ropes are also used for the self-pull of the river crossing equipment itself when it is trapped in silt and other places and cannot be pulled out. A hose is wrapped around the hose and reel mechanism. The role of the rope thrower is to throw the cable across the river to pull the wire rope. The function of the rollers in the river crossing device is to reduce the direction of movement of the hose or the direction of movement of the wire rope to achieve the pulling of the cable or wire rope. The air compressor is used for the emptying of the pipeline. 2. Product composition The river crossing equipment is in the form of a full trailer. The main components are 1. The working mechanism of the river crossing equipment is installed on the trailer chassis. The prime mover that drives the working mechanism is the self-contained diesel machine. The hydraulic system of the transmission and control system is directly dispatched. A wire rope for pulling the hose across the river is wound around the wire rope reel. The winch is twisted by the Ding 1 by the rope thrower to throw the cable or wire into the river, that is, 1. The trailer chassis 2 toolbox 3. The rope thrower box 4 air compressor 5. The diesel engine 6 transmission and control system 7 . Spare tires 8 hose and reel mechanism 9 pulley 1 winch wire rope and reel mechanism 12 roller 2.2 products use the use of river crossing equipment, mainly including hose laying and hose withdrawal. (1) Hose laying hose laying process The brakes on the front and rear axles of the trailer chassis are placed in the braking state and fixed by the reinforcing device; the hose reel mechanism is unwound and the cable is used to launch the cable to the opposite bank; On the other side, the cable is wound around the pulley and connected to the other; the two ends of the cable are respectively connected with the wire rope and the winch; the winch pulls the cable and the wire rope until the wire rope passes over the fixed pulley and returns to the shore. The power of the disk pulls the wire rope to pull the hose to the opposite side of the river or lake and fix it. Hose withdrawal hose withdrawal process When the feed is stopped in the soft palate, the hose oil inlet joint is disconnected; the air supply valve is opened, and the teaching and research of the oil and gas storage engineering engineering oil equipment in the hose is cleaned by compressed air. The working tube reel mechanism retracts the hose through the reverse rotation of the hose reel; locks the hose reel with the locking device; and unloads the trailer to prepare the haulage. 3 Transmission and control relationship analysis Transmission and control system is the power bridge of diesel engine working mechanism. The working mechanism driven and controlled by it includes air compressor hose reel mechanism winch wire rope reel mechanism, transmission and control system by hydraulic and mechanical 2 Part of the composition. The drive line 25 has a dotted line frame as a mechanical part. The hydraulic part is not only. 1 gas-driven driving air compressor, and 1 wire rope reel mechanism minus device winch reducer and hose reel mechanism deceleration device is also driven by it. The transmission and control system consists of the hydraulic part of the control valve and the hose coil, such as the mechanism shifting hydraulic pump 3, which is the pressure source of the wire rope reel mechanism and the air compressor liquid music 1 channel, and the hydraulic motor 5 and 10 respectively oscillate the wire rope coil. Also the mechanism and the air compressor, the mountain position is controlled by the reversing valve 4. The hydraulic motor 5 operates in both directions while the hydraulic motor 10 operates in one direction. Since the liquid helium motor 5 for driving the wire rope reel is a low-speed cycloidal motor, the smoothness of the movement of the wire rope reel is ensured by the factory, and the hydraulic motor 10 is skillfully used for back pressure. After the 迪4妓 is blocked, the position of the feed valve is raised here, and the position causes the hydraulic motor 5 to stop rotating. The cooler and filter are placed on the circuit of the hydraulic motor 10 for the entire hydraulic system to be cooled and filtered. The hydraulic pump 2 is a pressure source for the hose reel mechanism and the winch hydraulic circuit. Hydraulic motors 7 and 9 drive the hose reel mechanism and the winch, respectively. Directional valves 46 and 8 are the same type of new position valve. The operating handle of the hydraulic motor achieves operational control. Hydraulic supply for exhausting, mechanism reduction gear, gold bedding device air compressor for wire coiling gold hose reel mechanism, 4 hydraulic system analysis 4.1 hydraulic system composition and function river crossing equipment hydraulic system cabinet 3 by 2 hydraulic The spring consists of two hydraulic circuits. It is the hydraulic circuit of the air rope reel mechanism 4 air compressor, which is the hose reel mechanism and the winch hydraulic circuit. 1. Fuel tank 2.2 hydraulic pump 4.6. Hydraulic valve New type 12 filter 13.14. The hydraulic part of the relief valve adopts a 17-stage air-cooled diesel-fired machine with a governor as the prime mover, and the diesel engine drives the hydraulic pumps 2 and 3. In order to increase the efficiency of the system, the hydraulic pumps 2 and 3 are set as double pumps. The two hydraulic pumps are geared and integrated with a safety valve to provide 15 additional working pressures for the respective hydraulic circuit. 7 is controlled by the reversing valve 6. The winch is controlled by the reversing valves 6 and 8. The position dip valve is sealed by the skin and acts as a position valve here. When the switching valve 6 is in the neutral position, the pressure oil is supplied to the switching valve 8, and the hydraulic motor 7 stops rotating. Therefore, the operating liquid jade motor 9 is effective. 4.2 Analysis of hydraulic system characteristics The hydraulic system has the following remarkable features. 1 double-pump pump makes use of the back jade to improve the system efficiency. By using the double pump, the liquid card motor is required to meet the power requirements of different flows. 1; 1 system efficiency. Compared with the use of double pump, the pressure of the large flow pump can save power consumption and reduce the heat of the liquid. The liquid music system slams the hose reel and the hydraulic motor of the winch, which requires a large flow and power. The rated flow and power are both 45 1 and 141 but the flow and work of the motor that drives the air compressor and the wire rope reel. in. Smaller, the rated flow and the power are both 181 and 51. Since the hydraulic motor that drives the wire rope reel is a low-speed cycloidal motor, in order to ensure the smoothness of the movement of the wire rope reel, it is necessary to set a back pressure on the circuit of the hydraulic motor. The hydraulic system of the river crossing equipment skillfully uses the hydraulic motor that drives the air compressor as the component that generates the back pressure. The new control valve hydraulic system uses three identical position-forward reversing valves to realize the hose reel and winch. Work requirements that cannot be rotated at the same time, no misoperation. This type of valve is a new type of domestically produced factory. Since the three valves are the same type of valve, the type of the valve is reduced, the versatility is strong, and the maintenance is easy. Very suitable for military use. Vibration and noise The vibration and noise of the liquid card system are caused by the vibration and noise of the components of the system. Among them, the pump and the most serious, vibration and noise will improve the pneumatic system of the pressure sealing test equipment. Wu Xiu 200105002802 Abstract introduces the improvement of the pneumatic system of the pressure sealability testing equipment. The single-channel air supply valve is changed to the self-made multi-way air supply valve. The working principle of the multi-channel air supply valve and the advantages of the improved system. 1 Introduction The various types of pressures commonly used are mostly in the case of pressure changes. Tube deformation. The gear is rotated by the gear transmission mechanism to display different pressure values. The structural principle of pressure determines that the spring tube of the pressure movement requires good sealing and no leakage is allowed. Otherwise, if there is a slight leakage, the pressure will be filled with various media and affect the pressure with long time use. . In order to ensure the quality of the pressure product, the product process needs to be sealed. 2 The original detection system works. The original test equipment is compressed by the constant pressure of the workpiece. 1. Source adjustment, device 2.3. The pressure of the piece clamping device 5 brings a series to the hydraulic system. The good result is that the hydraulic system will not work properly when the river passes through the equipment. The whole set of liquid card system is used in the environment. The component design and manufacturing process is good. Due to the advanced design ideas and manufacturing processes, the hydraulic components are miniaturized. The size of the pump and valve motor is smaller than that of the domestic components of the same specification. The security enterprise is integrated in the raft, gas, in the system. Form a closed system and observe if it leaks to check its tightness. Its pneumatic principle The working process is to provide the required compressed air to the entire closed system through the manual position valve 2. Close the valve, the whole system forms a closed cavity, so that the sealed cavity can be held at 328, and the pressure index is observed. If the pressure does not drop, it can be judged that 1 piece of density 1 meets the requirements, otherwise it is unqualified and then passed the manual position. Valve 3 excludes high pressure gas within the sealed chamber. 3 The original pneumatic system exists, the working process is single-piece production, the work efficiency is very low, and it can not meet the large-scale production. If the electronic control valve is used to realize multi-piece production, due to many components, high manufacturing cost, and complicated and frequent maintenance; 2 system has high requirements on the sealing of components, usually the service life of the components is like the door. Over-the-counter is inciting, and the guarantee of the quality of products with human factors has left hidden dangers. 4 improve the design of the pneumatic system 4.1 working principle mechanical department lecturer. Bachelor, engaged in the teaching of hydraulic and pneumatic courses, the air compressor is air-cooled, and the fan is driven by a hydraulic motor for cooling. The fan not only cools the air compressor, but also cools the hydraulic raft through the cooler. 5 Conclusion The river crossing equipment hydraulic system realizes the function requirements of crossing equipment, the design is reasonable, relatively advanced, and has a fixed reference value, but there are also some deficiencies, such as the lack of pressure measuring port matched with fault detection. GB 3:1 Self-Aligned Two-Component Binder-Red Flooring Glue,Middle Layer Paving Materials,Sport Court Pu Adhesive,Two-Component Binder Zibo Century Union New Building Materials Co.,Ltd , https://www.cum-sports.com