300万吨液压机设计外文翻译

1、110MN forging hydraulic press hydraulic system designthis Update：2010-08-26  message source:中华联盟网  daily：1077Red Sun Chengbo Ma Qingguo Xu Shi Luo (Linyi City Institute of Science and Technology Co-operation and applications) Abstract: This paper from the cylinder, simu

2、ltaneous, unloading and safety point of view expounded tons hydraulic press hydraulic system design elements. Key words: forging hydraulic press cylinder simultaneously unloading 110MN forging hydraulic press hydraulic system design Hongqi-Xu Chengbo-Sun Qingguo-Ma Luo-Shi (Linyi

3、 Academy of Technology Cooperation and Application) Abstract: This article from the structure, synchronization, unloading and safety point of view expounded tons hydraulic press hydraulic system design methods. Key words: forging hydraulic press, cylinder, synchronization, unloading I

4、. Introduction Design and manufacture of large hydraulic machine reflects the strength of a country's basic industries is a major aspect of overall national strength. As China's heavy industry, especially the defense industry development, forging press the growing demand. This

5、 paper aims to 110MN forging hydraulic press hydraulic system to make a summary of the design. Good reference for. Second, 110MN forging hydraulic cylinder of the preliminary design The 110MN forging hydraulic press primaries for the three beam four columns on the drive triplex struct

6、ure, work stress by three equal-diameter cylinders to achieve a one-way plunger, slide back up the return trip through two-way piston cylinder to achieve. In addition, the table with clamping cylinder, lift cylinder and automatic rotation device. Primary power source 45 sets 400YCY14-1B ax

7、ial variable piston pump pressure compensation, primary motor power 75KW, the pump's maximum working pressure 31.5Mpa, consider leaving some safety margin, primary system pressure To 28Mpa. To speed up the process of slide down the speed of air, hydraulic machines with liquid-filled ta

8、nk top for the air-way slide down quickly when to add oil. 1. Calculation of the main cylinder diameter Master cylinder diameter is calculated by: F = PS S = F / P D = Where F: maximum working pressure of hydraulic machines, F = 110 MN P: Rated working pressure hyd

9、raulic press, primaries P = 28 MPa S: three master cylinder hydraulic press area of the total work D: Diameter of main cylinder Substituting these values, calculate available: D = 1.29 m Primary master cylinder diameter 1300mm Pressure Check: F = PS = 3 * 28 * 3.1415926 * (0

10、.65) 2 = 111.5 MN Fully meet the requirements. 2. Calculation of the return cylinder diameter Is calculated, lifting the slider and the cylinder piston weight of about 300 tons, to consider the friction coefficient and to leave some safety margin, the design loads calculated according

11、 to 5000KN return cylinder diameter: F = PS S = F / P D = Where F: return Cylinder lifting force required, according to F = 5000KN = 5 MN calculation P: rated working pressure of hydraulic machines, P = 28 MPa S: 2 return the total working area of cylinder D: cylin

12、der diameter return Substituting these values, calculate available: D = 0.38 m Primary return cylinder diameter 400mm Can also be obtained Clamping cylinder diameter 380mm, workpiece diameter of lift cylinder 250mm. Table rotary hydraulic motor unit selection, model omitted. 

13、;Third, the speed check The hydraulic master cylinder speed include: 1. The main process of rapid decline in the work of the slider air The main work of the slider air-way rapid decline to rely on their own slide and cylinder plunger down about 300 tons of gravity, through liquid-fill

14、ed tank quickly add oil, and air-way rapid technological requirements can drop the speed limit by Valve 10 (see Figure 1) adjusted to 200-300mm / s. 2. The main work of the slider air-way slow down the speed The main work of the slider air-way rely on the slow decline of 45 units 400Y

15、CY14-1B filled pressure compensated axial piston pumps with variable drop in pressure of work at this time the main tank fuel tank return back Yajian weight (the pressure value can be Figure 1 in the relief valve 13 through regulation), low pressure, downstream speeds calculated as follows:

16、0;V = Q / S Where V: the main work of the slider air-way slow down the speed      Q: 45 units total flow pump Q = 45 * 400 = 18000 L / min = 18 m3/min      S: the total work of three master cylinder area S = 3 * * 0.652 = 3.982 m2

17、 The calculation of available: V = Q / S = 18/3.982 = 4.52 m / min = 75.34 mm / s Description: The speed-based back pressure when the fuel tank of a maximum downlink speed of work, the actual operating speed of each pump by controlling the unloading valve to the main tank runs between

18、 0 and the maximum speed of operation. 3. The main work of the slider when working at full capacity under the pressure of speed The main work of the slider at full capacity under the pressure mainly depend on the work of 45 sets of variable piston pumps filled under pressure, due to full l

19、oad (28MPa) to run, 400YCY14-1B pressure compensation axial variable piston pump oil supply is no longer a 400L / min, and it is calculated by the following formula: Q = 60N / P Where Q: flow rate L / min    P: Working Pressure MPa : total efficiency (recommen

20、ded value 0.85) N: Motor Power KW Q = 60 * 0.85 * 75/28 = 136.6 L / min 45 pumps of the total flow Q total = 45Q = 6147.32 L / min = 6.147 m3/min Work at full capacity, the main job nowadays pressure slider speed can be calculated by: V = Q / S V = Q / S = 6.147/3.982 =

21、 1.544 m / min = 25.73 mm / s Note: The maximum speed of the main fuel tank under the pressure of working full load speed, the actual operating speed of each pump can be controlled unloading valve to the main tank runs between 0 and the maximum speed of operation. 4. The main work up the s

22、peed slider The rate of increase depends on the work of the slider main fuel tank increase the return rate of return increased cylinder speed can be calculated by: V = Q / S Where V: speed up the return tank S: return the total working area of cylinder S = 2 * * 0.22 = 0.25 m2

23、60;     Q: 45 units working under the pressure of hydraulic pump in the return of the total flow, Because the use of the variable pump, variable pump flow and pressure of the work required to calculated as follows: Q = 60N / P (the meaning of the symbol above) 

24、;One tank working pressure P may be the return calculated the total work load, the slide with the three main fuel tank weight 300 tons, ignoring friction, the total work is about resistance 3MN, working pressure of the return: P = F / S = 3/0.25 = 12 MPa Therefore: Q = 60N / P = 318 L / mi

25、n Total flow: Q total = 45Q = 14310 L / min = 14.3 m3/min V = Q / S = 14310/0.25 = 57.24 m / min = 954 mm / s Note: The maximum speed of the return cylinder speed up the work, the actual working speed can be controlled unloading valve of each pump cylinder to return the speed between

26、0 and the maximum speed of operation. Actual application rate of return is generally not more than 200mm / s. 4, unloading circuit design As the hydraulic machines are high pressure and large flow of hydraulic equipment, storage of the variable at run time performance of the energy Bi

27、jiao Gao, more Rongyixingcheng hydraulic Chong Ji, Bixusheji sufficient unloading hydraulic circuit in order to avoid the impact of the formation. The machine has three main cylinder unloading circuit design, hydraulic schematic shown in Figure 1, system working pressure of 28MPa, which relief

28、valve 1 set 18MPa, relief valve 2 set to 9MPa, for the first time received through S9 reduced the system pressure 18MPa, 0.5s after the S10 connected to the system pressure further reduced 9MPa, 0.5s after the open check valve connected to S1 while the system pressure of 14 to 0 and started rev

29、ersing. This structure can effectively avoid hydraulic shocks, hydraulic master cylinder to achieve smooth commutation. Figure 1 5, synchronous circuit design The hydraulic machine consists of three structures need to be synchronized, namely: 1. Press the two side of the cyl

30、inder when under pressure to ensure the press need to synchronize the parallel slide under the pressure side of the cylinder is characterized by high work pressure, and thus a greater eccentric torque. 2. Workpiece Clamping claws need to synchronize two folders to ensure that forging the center

31、 of the workpiece in the table, the characteristics of claws when not in table center piece, gripping both sides of resistance vary greatly, and clip claws synchronization accuracy is high. 3. Workpieces up institutions on both sides of tank must be synchronized to ensure simultaneous incr

32、ease of both sides of the workpiece, the workpiece is characterized by rising fuel tanks on both sides nearly equal resistance, the basic non-eccentric torque. According to synchronize the different characteristics and requirements, the three were selected in different parts of the synchronizat

33、ion institutions, as shown in Figure 2. Which (a) for the synchronous cylinder structure that the two cylinders A, B, respectively Unicom cavity, using both sides of fuel tanks A1 + B2 = A2 + B1 principle, when the fuel tank to one side, for example,increased the left, then the inevitable: A1 +

34、 B2> A2 + B1, because the external fuel tank sealed, still maintain the A1 + B2 = A2 + B1 unchanged, they are able to maintain sync on both sides of tanks. Additional equipment for the leaking valve. When the two sides also reached the highest position, the solenoid valve connected to,

35、the system automatically added to balance the oil tank. The agency used to synchronize the main fuel tanks on both sides of cylinder. (B) synchronous servo valve structure is detected when the two sides of tanks 1,2 is not synchronized, the signal feedback to the servo valve, servo valve a

36、utomatically adjusts the fuel supply tanks on both sides, to keep sides of fuel tanks synchronization, the structure for the clamping body. (C) synchronization for synchronization valve body, relatively simple, synchronous lift cylinder for parts. Figure 2 6, security system desi

37、gn As the slider and the master cylinder of the total weight of up to 300 tons, once the accident whereabouts, the consequences would be disastrous, it is necessary to design appropriate security agencies to ensure that the system Zai misuse, valve damage and other circumstances will appear sli

38、der Automatic drop phenomenon. The hydraulic check valve designed to increase the safety solenoid valve control system, the system shown in Figure 1, the slider whereabouts must meet two conditions: first, the master cylinder to receive the signal started to run down after The system

39、provides the main downward pressure on the oil tank before opening check valve 14. Secondly, S3, S4 must be at least one power opens. Both are indispensable to ensure to avoid malfunction caused by the slider so the whereabouts of the accident. VII Conclusion Tons of free forging

40、 hydraulic press hydraulic system design is a complicated systematic project involving many areas of technology in many areas, this paper from the cylinder, simultaneously, unloading and safety point of view of the tons of free forging hydraulic press hydraulic system design made a preliminary

41、study, hoping to have the hydraulic industry peers benefit the spleen. Please inappropriate treatise. References: 1 Wang Kunlun editor. Hydraulic press design and manufacture the latest technology selection application of the standard Collection M. Beijing: China Machine Press, 2010.6

42、 2 Zhang Liping. Hydraulic valve principle, the use and maintenance of M. Beijing: Chemical Industry Press, 2005.6 3 Pei-yuan, ZHU Fu-yuan. Hydraulic system design simple manual M. Machinery Industry Press, 2003.1 Attached Author: Xu red, male, Born in 1962, engineers, mainly engaged

43、in the design of hydraulic and electrical work, has published a number of national and provincial journal papers. ID number: 3728297, Address: Linyi City, Shandong Province Road, 46 siskin, Linyi City, and application of scientific and technical cooperation Research Institute, Tel: . 110MN

44、模锻液压机液压系统的设计更新:2010-08-26消息来源：中华联盟网日报：1078红太阳成波马庆国徐施罗（临沂市科技合作和应用研究所）摘要：本文从气缸，同时，卸载和安全的角度阐述吨液压机液压系统的设计元素。关键词：同时卸载锻造油压机缸阐述吨液压机液压系统的设计方法。关键词：锻造液压机，油缸，同步，卸载一 引进设计和大型液压机制造体现一个国家的基础产业的实力是1综合国力的主要方面。由于中国的重型工业，尤其是在国防工业的发展，锻造按日益增长的需求。本文旨在以110MN模锻液压机液压系统设计总结。很好的参考的。二，110MN模锻液压缸的初步设计的110MN模锻液压机初选三束四列驱动器上的

45、三层结构，由三个相等的圆筒工作压力实现了单向柱塞，滑动，通过双向活塞缸实现回程。此外，夹紧缸表，解除缸和自动旋转装置。主电源45套400YCY14-1B轴向变量柱塞泵泵的压力补偿，主电机功率75KW，泵的最高工作压力31.5Mpa，考虑留下一定的安全边际，主系统压力为28Mpa。要加快速度下降的过程幻灯片的空气，充满液体的罐顶液压机空气双向快速下滑时，添加油。1。主缸直径计算主缸直径计算：F =聚苯乙烯小号的F / P = 凡：液压机最大工作压力，女= 110百万病人：额定工作压力的液压机，初选，P = 28兆帕S：总工作的三个主缸液压机面积：主缸直径，计算：ð=

46、 1.29中号主主缸直径1300毫米压力检查：F = PS = 3 * 28 * 3.1415926 *（0.65 111.5百万港元）2 = 完全满足要求。2。计算回报气缸直径计算，起重滑块缸活塞重量约300吨，考虑摩擦系数，并留下一些安全边际，设计荷载5000KN气缸直径回报计算F = PS =的F/ D = 其中F：回报气缸举升力的要求，根据F = 5000KN = 5分钟计算P级：额定工作油压机，p = 28 MPa的压力小号：2返回汽缸总工作区D：气缸直径返回代这些值，计算可用：D = 0.38中号小学回报气缸直径400mm

47、 夹紧气缸直径为380mm，工件直径升力，也可以得到缸250毫米表转液压马达单位选择，模型省略第三，速度检查液压总泵速度的包括：1。工作滑块的空气中迅速下降的主要过程的主要工作滑块空程快速下降，依靠自己的幻灯片和大约300吨的重力缸柱塞下来通过充液坦克，迅速 补充油，空程快速的技术要求，可以由阀门下降限速10调整到200为300mm / s。（见图1）2。滑块的主要工作空程的速度减慢返回主油箱油箱压减重量（压力值可以通过调节溢流阀13图1），压力低，下行速度计算如下V = Q / S，其中V：滑块的主要工作空气的方式放慢速度 问：45单位为Q = 45 * 400

48、 = 18000升/分钟= 18风量小号：总工作的三个主缸面积S = 3 * 0.652 = 3.982货币供应M2 的计算： V = Q / S = 18/3.982 = 4.52米/分钟= 75.34 mm / s的描述：“速度型的背压时油箱的最大下行速度的工作，每台泵的实际运行速度控制主坦克的卸荷阀介于0和运行的最高速度运行。3。滑块速度的压力下满负荷工作时的主要工作滑块的压力下，满负荷生产的主要工作，主要取决于对工作充满压力下，变量活塞泵45台套，由于满负荷（28MPa ）运行，400YCY14-1B压力补偿轴向变量柱塞泵的石油供应不再是1 400L /分钟，按下列公式计算Q =60N/ 问：流量L / min的 P级：工作压力MPa ：总有效率（推荐值0.85 N ：电机功率KW Q = 60 * 0.85 * 75/28 = 136.6 L / min的45泵的总流量Q总= 45Q = 6147.32升/分= 6.147风量工作满负荷生产，现在压力滑