The 1st liquid twisted frog jumping machine is exemplified by the hydraulic frog jumping machine adopting the control cylinder open-loop electro-hydraulic servo system, the hydraulic cylinder piston rod connecting ratio is the double-speed increasing speed pulley group, and the free end of the pulley group steel wire rope is suspended. 6-person single-row joint seat, see 1 1. Seat 2. Hydraulic cylinder 4. Fixed pulley 5. Wire rope 6. Guide wheel frog jump machine operation process is as follows to start the hydraulic station, the valve control cylinder will carry passengers The seat is slowly raised to a height of 4.5. At this time, the preset program electric signal is manipulated to control the frog jump. The idling pulley hungry will follow this frog jumping hall and the violation, people will arrive; To avoid the impact of excessive damage to passengers. Take a multi-level leapfrog mode from top to bottom. The level frog jump scale is less than the frog jump action repeated 3 times and the valve control cylinder will make the seat stand smoothly. The hydraulic jumper is a amusement machine that provides weightless feeling for the ride. The use of high-precision closed-loop control system is feasible but expensive and difficult to maintain. The practical application of the valve-controlled cylinder open-loop electro-hydraulic servo system is satisfactory.
The control valve is a key component of the system, and its performance is closely related to the performance of the machine and the safety of the aircraft. The system is equipped with a 171 watt 140-71 high-performance proportional directional valve. It is equipped with a built-in displacement sensor and an integrated electronic amplifier to achieve valve regulation and reliable control in a closed-loop manner. It is an optimized integrated electro-hydraulic system with dynamic and static characteristics. It can be compared with the inter-service valve, and can provide directional control and pressure-compensated flow control according to the input electric signal, and has the advantages of reliable performance and low filtration requirements. The hydraulic leapfrog machine using the valve can accurately control the falling speed and acceleration of the seat. It can not only prevent the seat from falling out of control, but also avoid damage caused by excessive impact of the hydraulic cylinder and the pulley block wire rope. The description allows the rider to experience the thrill of weightlessness to the maximum, and the tank is another key component of the system. It must have excellent servo performance and sifting performance to ensure the control precision and stability of the system. The internal leakage and sliding friction of the hydraulic cylinder are non-linear factors that affect the accuracy and stability of the system control. It is also a measure of the performance of the hydraulic cylinder. It should be as small as possible. The piston and end cap dynamic seal of the hydraulic cylinder adopts a non-opening slip ring that has a long service life and no leakage, and has a multi-channel design outside the piston. The pressure equalization groove, when the piston is high in the operation hall, its stored hydraulic oil can ensure the running edge. Avoid thousands of friction, but also accumulate metal impurities mixed into the working gap to prevent the piston and cylinder face from being damaged, and reduce the hydraulic clamping force to 2 or less; the idle start version of the hydraulic cylinder is along 2 lb 1; The minimum score for a hall is particularly low. A spear hydraulic buffer was designed at both ends of the 251 1 pressure-holding new cylinder without internal and external leakage hydraulic cylinders. Once the hydraulic frog jumper lost control, it fell into the top. Can effectively mitigate the impact. In order to restrain the swing of the quick-moving pulley assembly, the hydraulic leapfrog machine imported from China adopts the double-cylinder parallel drive to increase the speed moving pulley assembly, which requires the hydraulic system to have the dual-cylinder synchronous speed regulation function, resulting in a small-sized hydraulic station tube. Covered. The structure is complex, adopts single-cylinder drive and quick-moving pulley assembly structure, and the hydraulic station structure is simplified because there is no double-cylinder synchronization requirement. In addition, two sets of symmetrical guide rods are designed on the upper end cover of the hydraulic cylinder, which can effectively suppress the brake pulley assembly. Swing, 1 inside and outside amusement machine expert! . Jumping machine agricultural hydraulic control 2. Cylinder 3. Screw 4. Guide rod 5 upper end cover 6. Moving pulley assembly 2 Hydraulic cylinder upper end cover guide rod indicates that heat generated by internal loss during micro-heat operation will cause temperature increase lubricant to deteriorate Mechanical parts are damaged by the occlusion insulation, which is the main reason for restricting the use range of mechanical transmission. The hydraulic transmission can bring heat to the radiator at any time to dissipate heat due to its continuously flowing hydraulic oil, so that other mechanical transmissions are similar.
It takes a long time for the battery to be fully charged, and the circuit needs to be replaced. The hydraulic accumulator can complete the energy storage in an instant, no need to change the oil circuit. 3 The hard drive soft meshing transmits the hydraulic oil with uncompressible characteristics, which makes the hydraulic transmission rigidity high; the mechanical parts and hydraulic oil that transmit power are maximized. The contact gear drive and the chain drive are in the form of a wire joint between the metal parts, and the liquid with a hard drive soft-coupling feature is transmitted without damaging the mechanical parts.
The power shyness is heavier than the large hydraulic transmission. The output is half the work. The front power 4 ratio has reached 3.31 to 1 lubrication and the anti-smashing hydraulic oil itself has lubrication and anti-rust effect, which makes the hydraulic components work longer. This is a very valuable response speed for the ten open-air amusement machines. The impact resistance is strong and easy to dissipate. The hard drive soft meshing characteristic enables the hydraulic control system to continuously start braking and reverse at high speed without damage. The impact load capacity is so close to the mechanical transmission.
The reasonable use of hydraulic hose hydraulic buffer and hydraulic accumulator can effectively mitigate the impact. Due to the large impact load of the leapfrog machine, the starting brake and the reverse are frequent, the hydraulic control system with advantages is the choice, the frog The valve-controlled cylinder of the jumper is connected in series and the speed pulley group. This is because the frog-jumping machine seat moves up and down. The maximum falling speed of the ladder is about 45. If the seat is directly driven by the valve-controlled cylinder, the maximum extension of the hydraulic cylinder is about 10 Er, obviously, this machine does not use the speed-increasing pulley block with a magnification of 3 to reduce the working stroke of the hydraulic cylinder to the outer dimensions of the hydraulic cylinder of 1.5. It is also very beneficial for extending the working life of the hydraulic cylinder. In addition, the rolling bearing is used. The transmission efficiency of the pulley block is as high as 1.9.99.2. It can be neglected in series. The analysis of the transmission efficiency of the leapfrog machine in violation of the pulley group is as follows.
The load is a children's amusement machine, the total weight of 6 children is 14, 240 seats 14 acceleration 3, for the sake of analysis and calculation, assume that the seat is up and down sinusoidal motion, 1 4 cycles D 4 to 34 cycles 3 D 4 sine The movement is very close to the falling movement of the leapfrog seat. See the movement equation force of the 3 seat of the cabinet =!
The seat of the Ho seat is half of the maximum, the speed equation of a seat = he 008, 13 tons of chair plus contraband. , = ugly let 41 mountains. 4 through calculation. The seat, the maximum violation of the maximum inertia of the cix.H2.47nis seat, the maximum movement of the seat, the maximum traction of the 1 battle corpse hydraulic cylinder, only 15 full ugly; 1 麴 3 åŸ sight, è°³è¡æ´„ Today è‹ çž§ 瞧 瞧 袼 袼 袼 袼 袼 袼 袼 袼 袼 袼 袼 袼 袼 袼 袼 袼 袼 袼 袼 袼 袼 袼 è‹ è‹ è‹ è‹ è‹ è‹ è‹ è‹ è‹ è‹ è‹ è‹ è‹ è‹ è‹ è‹ è‹ è‹ è‹ è‹1999 Weng 9, painting riveting, 2 Xiang
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