Discussion on the problems related to the speed regulation spring of diesel engine regulator

Speed ​​control spring Zheng Mengming Hu Chengmu gas Pan Yufeng 21. Quanzhou Railway Co., Ltd., Quanzhou, Fujian 362, 2. Dalian Aircraft Plant, Liaoning Dalian 6, 21 summary. 57 analysis of the influence of the linear cylindrical speed governing spring on the main performance of the speed control system, the design and manufacture of the clock linear cylindrical spring to replace the original nonlinear tower spring as the speed regulating spring. Proof of use after loading. Good performance, reliable operation 1 Introduction to the diesel regulator speed governing spring as a basic mechanical component. According to its characteristics, the metal wire bomb can be divided into two types: a linear spring with a straight cylindrical ring shape and a nonlinear spring with a shape of a columnar shape or a non-straight cylindrical ring. As far as we know, mechanical regulators consist of single or full-scale regulators, all with linear springs or pressure springs.

In addition to the low precision of the easy-to-find design due to its simple design, it also meets the needs of regulators and diesel engines for normal operation. Domestic locomotive spit. 5甩1218, some diesel engines, 3 type 12135 12190 diesel engines and many automobile tractor diesel engines and diesel engines for power generation, the regulators are all equipped with adjustable speed springs, speed control in mechanical liquid music regulators The cargo is linear.

There are also non-wire pieces. Production of high-power locomotive diesel; 1 machine includes 207 240 series and 280 series and imported your 4 rib 5 type engine diesel engine, the regulator speed control spring is 坫 parameter close to the nonlinear spring, and the imported step 67 type locomotive diesel engine, there are 4cfl936. Ann, Wuhu into the senior project, Pan Yujiao! 1. Male. Jilin has a long history. Ding Cheng service, 23 type locomotive diesel engine, its regulator speed control spring is linear.

The speed governing spring in the locomotive diesel engine regulator was not introduced by the linear home, and the application department did not reflect it. The theoretical analysis has not yet arrived. The Dalian Locomotive and Rolling Stock Plant uses a non-linear tower spring for the governor of each type of regulator. It has been confirmed by many years of practice. It brings the following design calculations of the nonlinear tower spring to the testing and application of the design of the machine and its diesel engine. So far, there is still no data to be borrowed, even the very similar accounting is complicated. Therefore, production practices cannot be well guided.

Due to the special shape of the shape and the variation of the pitch of the tower spring, it is difficult to ensure the characteristics required by the design, that is, the secondary reduction accuracy requirement and the yield rate are also low.

Due to the manufacturing process, even if the springs of the same batch are rolled, the characteristics of each other are very different. According to the actual measurement, the range of diesel engine speed variation is the same as the 430100 adjustment springs, the card shrinkage difference is as much as three. In this way, under the same maneuver command, for the diesel engine adopting the joint adjustment, the diesel engine speed difference is large, and the diesel engine output power is also very different. Therefore, even if the same type of pen replaces the same type of regulator, it must be re-watered or self-loaded to adjust the speed of the machine, the power of the 乍 and its 在 are under the same maneuver command. The difference between the waves is also large, which brings inconvenience to the application.

The lap number, from the existing finite-speed locomotive diesel engine equipped with a non-linear tower spring as the speed-regulating spring, in the range of working speed, the change of the diesel engine speed is theoretically designed to be equal for each shift, and the traction characteristics are Determine the diesel engine output power. It does not change in the same way as the speed of the gear. The difference in output power with gear changes increases as the gear increases and decreases as the gear decreases. For example, take the 16-speed, level-adjusted, 01 feeding machine. Diesel engines are an example. Zhuang's work turns, Fan Yang 0, every line change, the theoretical change of the speed of the Chai Miao machine = 4, and the diesel engine output power corresponding to this is changed from the first gear to the second gear according to the change of the gear. The power is increased. Heart 2 = 441; to; 17 with the increase of the gear, the power increase value per shift of the first gear also increases; when the 15th gear to the 16th gear, the power increases by 4 teams 6 = 2 hungry. This diesel engine output power increases as the gear shifts as the gear shifts. The law of decreasing as the gear is lowered. It is required that the traction force increases rapidly during the starting process of the machine 1 and that the traction force is required to be stable during the traction process, especially in the high power section. For diesel engine stepless speed locomotive equipped with non-linear tower spring for speed regulation. This contradiction also exists; 2 the influence of the characteristics of the governing spring on the main performance of the speed control system. The locomotive diesel engine speed control system composed of the mountain regulator and the diesel generator has its working performance index, according to the relevant standards or technical documents. There are few fluctuations in the speed of the speed, and the instantaneous adjustment rate has many factors in the performance indicators, such as diesel engines and generators, as well as regulators.

For the locomotive, the diesel engine meets the various factors of the performance indicators of the joint regulator, and analyzes the rotational speed mechanical sensitive component flying hammer and the speed regulation yellow. After controlling the plunger motion gauge, it is indispensable to have a small relationship, and the equation of the plunger motion is derived into two types. The meaning of each symbol is 3 plunger movement resistance; plunger movement stability; W The angular velocity Aw before the variable working condition changes due to the change of the angular velocity of the operating system. The sensitivity of the trimming system must be small, and the steady-state spring condition is stabilized. The flying hammer is almost twisted around the lead. The stiffness of the tower spring 1 is large; when the shaft is turned, the structural parameter of the hammer 16 of the lifting system is m 6 hammer rotation, which is more than the equivalent of the P-speed spring stiffness, and the column caused by 3 The vertical displacement of the lead is whitened by 1 in the column motion, and the degree 3 is critical to the dynamic performance index of the speed control system. For the convenience of description. This is simply referred to as plunger motion sensitivity. In the same way, 5 pairs of static work performance indicators such as flat, have a decisive role, so it is called plunger movement stability. The sensitivity of the plunger movement 3 and the stable movement of the plunger are also estimated to be due to the increase or decrease of the sensitivity 3 of the plunger movement, so that the instantaneous adjustment rate of the speed regulation system is correspondingly reduced or Large, and can be increased and decreased by Equation 3 by Equation 1.

Therefore, the instantaneous speed regulation of the speed control system decreases as the steady speed of the speed change is increased, and also decreases as the stiffness of the speed control spring decreases. Therefore, the speed of the sweat is reduced after the marking condition is unloaded. That is to say, 3 increases, the calibration can be turned, and the speed of the adjustable speed magazine is reduced.

Due to the increase or decrease of the plunger movement stability 5, the speed fluctuation of the speed control system will be correspondingly reduced or increased accordingly. Therefore, by the formula 2, the stability of a certain speed operation is better, that is, the flat value Smaller, the speed can be adjusted corresponding to the running speed, and the yellow stiffness is increased. By the formula 3, when operating at the same speed, the system is raised, for example, to increase the flat speed and the speed regulating spring corresponding to the running speed. At the same time as the stiffness, the system 5 will also increase. However, when operating at different speeds, this contradiction can be resolved or alleviated due to the different requirements for 3 and . According to the relevant standards and technical documents, the unloading load of the calibration condition does not make the self-exceeding set value the main one, and the idle working condition only requires the trial value not to exceed the given value.

This. As for the main performance impact of the idling yellow characteristic on the speed control system, at present, the joint regulator adopts the increase of the stiffness value with the increase of the rotational speed, and the tower yellow is particularly suspected to be a high-speed flash to improve the stability. The stiffness of the governing spring at this time must be made larger, and the stiffness of the tower spring is small, which is also the reason for easy to ride when idling. In order to resolve or alleviate this contradiction, a linear column spring can be used instead of the tower spring as a speed regulating spring. In this way, the singular value of the unloading load of the calibration condition can be kept unchanged; however, when the idling is performed, the stability is obviously improved due to the increase of the stiffness of the speed regulating spring. This can be roughly explained by a simple straight line of 2. When the rated speed is 10001, the plunger and the tower spring have equal self-sum 3 to keep the original ± bridge spring much larger at this speed, thus effectively suppressing the swimming caused by certain factors during idling. Car phenomenon.

The influence of the plunger movement 3 replaces the nonlinear tower-shaped speed-regulating spring with a linear cylindrical speed-regulating spring. According to the analysis, the linear cylindrical speed-regulating spring and its matching other improved schemes are combined to adjust the speed and power. The recording period is 2001.7.13 1. The road is Jingshen. During the test. In order to test its reliability 14, the storage electronic disk was replaced several times, and the storage disk was removed after the storage disk was removed. Through the observation and flight attendant reflection, the original display and the fault record were not affected. It shows that the compatibility of the motherboard and the compatibility of the program are good and will not conflict with the original system.

4 Conclusions Through the observation and observation of this period of time, as well as the analysis of the data of the record dump data, we believe that the data of the 1 乍 乍 乍 圮 圮 圮 圮 圮 圮 准确 准确 。 。 。 。 。 。 。 。 。 The dumping device has strong adaptability, and the ground analysis software can display the data more completely, and the operation is simple, and the standard required by the design is initially achieved, which can meet the needs of the site.

The combined value of the stress composition. The internal stress of the body is greatly affected by factors such as the structural welding process.

Under the condition of welding process, the internal stress distribution law is basically unchanged. The complex structure should adopt symmetrical welding as much as possible to prevent the overall deformation caused by the internal force + uniform. 3 The internal stress distribution after welding is extremely +. Considering the excessive number of welds, the heat treatment should be done to reduce and equalize the stress, which is caused by the 7 degree difference of the steel plate of the body, which is too large. The roughening after heat treatment should be strictly controlled. Due to the large amount of cutting and the decrease, the stress is redistributed but the internal stress is still high, and the secondary aging treatment is required.

After the rough machining of the machine body, the machining allowance is small. If the heat treatment method is used for secondary aging, there will be a possibility of deformation over tolerance, and the vibration aging treatment at normal temperature should be adopted.

The stress at the end of the ribbed plate on the inner side of the air cavity is generally high, which is caused by the welding stress and structural restraint stress. These points are also the fatigue source of fatigue damage. The relevant structure should be paid attention to and corrected, i Hu Shiyan et al. Mechanical Failure Analysis Manual 0 Science and Technology Publishing 2 Gu Mao. Residual stress generation and countermeasures 0 Beijing Mechanical Industry Press, 31卞. Gerne. Fatigue of welded structure 00. Beijing Machinery Industry Press.

In place of the original type of joint regulator from May 1998 to March 1999, in the Jinan Locomotive Division of the Jinan Bureau, the locomotive No. 4,0187 was installed, and the 134th and other trains were towed in recent years. The 200,000 application test proved that the performance is good and the work is reliable. In the actual application, the linear cylindrical speed-regulating spring has the following advantages. Under the condition that the locomotive and the diesel engine are in the same state, the two regulators are tested in the water resistance before and after the replacement. From the point of view of the small idling train of the mechanical rotator, the engine speed fluctuation is reduced from 50 before the change to the diesel engine speed change under the same deformation of the small 亍 speed spring. The speed of the diesel engine is proportional to the square root of the compression of the speed-regulating spring, that is, 2. For the type 4 diesel engine that is the same as the previous stage. Therefore, from the first gear to the second gear, the speed is increased by 4, 2 = 69 ± 1. Then. For each liter, the speed, plus 4; 1 is reduced in turn. When the 15th gear of the mountain rises to the 16th gear, the speed increases, 156=3,1, and the output power of the diesel engine determined by the traction characteristic changes. When the first gear rises to the 2nd gear, the power increase team 12 changes with the gear. The amount tends to be flat, which is beneficial to the rapid start of the locomotive and the smooth change of traction in the traction.

The design of the linear cylindrical speed-regulating spring is simple and convenient to manufacture, and the required characteristics are easy to ensure. The manufacturing cost is that the nonlinear tower spring 0 is easy to ensure due to the required characteristics. When the same type of locomotive is replaced with the same type regulator, there may be no water resistance adjustment; When the locomotive is reconnected, under the same steering command, the difference between the speed and power of the diesel engine of the vehicle and its vehicle becomes smaller, and the locomotive reconnection is good.

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