英语论文英文.docx

1、英语论文英文The Design of the hydraulic manifold of feeder Based on Pro / ESummary: This paper introduces the application of Pro / E software to design hydraulic manifold. According to the work requirements of the hydraulic system, design the schematic of the hydraulic system, select the hydraulic compone

2、nts,then design hydraulic manifold of the Pro/E software. Using three-dimensional parametric software is good for Upgrade design tools, ensures the accuracy of the design and improve the success rate of a one-time design.Because the internal of the manifold has many channels and the hole depth is di

3、fferent. Some should be the same, but some should not be the same, and it is complex. Therefore, we propose that we can use the pro/E software to design the hexahedral manifold. The method is also good for examine the relationship between the oil passage.Keyword: Three-dimensional solid modeling; Pr

4、o/ENGINEER; parametric design; Hydraulic System; Hydraulic Manifold.Chapter one IntroductionThe hydraulic system uses the integrated device of hydraulic valve. With a good structure, small pressure loss, easy maintenance and disassembly, small vibration, which will help to achieve integration and st

5、andardization of the hydraulic system.As carrier holds of all types of cartridge valves and other accessories, the Hydraulic Manifold Blocks consists by its System of the non-standard and body Holds. Its internal pores is very dense, and the holes network is complex. The current design level is rela

6、tively backward. It not only mental heavy, time-consuming, but also cannot guarantee the quality. At present, some techniques used in hydraulic manifold design Facilitate the design plan to a certain extent. In this paper, we combine the Pro / ENGINEER software and the manifold knowledge. We try to

7、use Pro / ENGINEER software to virtual design of HMB to reduce the labor intensity of designers and improve efficiency. Virtual design (Virtual Design, VD) 3 is based on computer-aided design and it is a new design method using virtual reality technology evolved. It can provide a good design environ

8、ment and support tools for product design, the designers idea can be directly reflected in the three-dimensional interface.With the rapid development of science and technology, Hydraulic units in various fields of industry, agriculture and life is used more widely. Its research and design in researc

9、h, teaching, particularly in the production practice will have a very broad application prospects.Chapter one Literature review2.1 Hydraulic Manifold OverviewThere are two main problem to be solved about manifold design: first, check with the design of the body parts, the second is to verify the ass

10、embly structure. Two-dimensional engineering drawings to reflect the design method, not only the design efficiency is low, and prone to error. Some errors are difficult to be found in the drawings, if you find problems after experimental product produced, will bring no small economic loss, delays in

11、 product development time. Therefore, the use of three-dimensional parametric design software products were designed to improve the means and methods, the problem occurs at the design stage as possible; at the same time more models, series of hydraulic machinery development, parametric design allows

12、 designers to greatly improve efficiency.2.2 Introduction to 3D mechanical design softwarePro / ENGINEER system come out in 1988 with design parameters, then led the industry for parametric design CAD / CAM systems expectations. Pro / ENGINEER is no doubt a great help for the three-dimensional geome

13、tric modeling designer. Because Pro / ENGINEER parameters in 5 does not represent the three-dimensional shape of the object relative size, and there are real physical significance. For example with the design of the physical meaning of the volume, surface area, center of mass, density, thickness, et

14、c. may be added to the design conceived to express design. Pro / ENGINEER is a comprehensive three-dimensional product development software, Integrated part design, mold development, product assembly, CNC machining, design, sheet metal design, reverse engineering, mechanism simulation, automatic mea

15、surement, stress analysis and database management functions in one product.2.3 The purpose and significance of the three-dimensional manifold parametric designWith the development of modern science and technology, hydraulic systems products in the fields of mechanical, agricultural, aerospace and ev

16、eryday life applications more widely, and some of the more advanced equipment, the application of the hydraulic system on the more. In the conventional hydraulic circuit, hydraulic components connected by tubing to achieve mutual. The more the number of hydraulic components, more pipe connections, t

17、he more complex the structure, the greater the loss of system pressure, the greater the space, the more difficult repairs, maintenance and disassembly. The manifold is compact, good exchange performance, maintenance, easy accessibility. Three-dimensional solid body with Pro / ENGINEER software to bu

18、ild a realistic parts, you can easily and visually check the position of the hole and the hole on the relationship between the hydraulic system schematics meets all the requirements, as well as the holes location is reasonable. Because it is parametric solid model, modify it more convenient. In orde

19、r to better facilitate the observation of the internal features of the software can take advantage of perspective.3.4 Develop a hydraulic system diagramDevelop a hydraulic system diagram, the main issue is to consider the following aspects:1、 From the operating mode chart analysis, the system requir

20、es a larger flow is fast and quick on the next.2、 The figure shows the operating mode, the system needs to be adjusted when the slow, taking into account the system power efficiency, low slide velocity, small changes in workload, so the use of oil return control valve control Circuits.3、 As the spee

21、d of the faster and slower between the need for access, but do not ask for access to the location, so the sender using the trip switch control two two-way solenoid valve to achieve speeds for access.4、 To prevent the holding weights at the upper end of the stay within the weight during the fall and

22、stay position, especially in the lower chamber of the hydraulic cylinder (rodless cavity) into the oil on the way to set up check valve; on the other hand, in order to overcome the slide under the weight of the fast during the impact, setting up a one-way back-pressure valve.The hydraulic system to

23、change the use of the three-way Y-median function of solenoid valve, Figure 3-3 for the hydraulic system schematics drawn, Figure 3-4 for the superposition of the hydraulic valve hydraulic system consisting of Fig. 液压系统的动作要求及电磁铁动作表如上图Chapter IV HMB structure and design4.1 Hydraulic Integrated Circui

24、t DesignHydraulic integrated circuit design is a key design of the hydraulic manifold, hydraulic manifold pore design is reasonable, there is no interference in the hole, and the selection of the hydraulic circuit are closely related. When designing a hydraulic integrated circuits, generally can be

25、divided into several units hydraulic circuit loop, each unit generally consists of three hydraulic circuit components, using a common pressure P and the oil return line T, such units integrated circuit, said hydraulic unit loop. Hydraulic unit integrated circuit design, the preferred generic hydraul

26、ic unit integrated circuits to reduce the manifold design workload and improve versatility.4.2 Hydraulic Manifold and DesignFigure 4-1 is a feeder of hydraulic manifold assembly General Plan. It consists of the base plate 1, the direction of speed control block 2, the pressure block 3, clamp block 4

27、 and the top cover 5 composed by four fastening bolts 6 connect them, Then be fastened to the hydraulic tank, pump through tubing connected by four screws and the bottom, consisting of hydraulic station, hydraulic components are fixed to form a complete hydraulic system on each manifold. 图4-1 装配图 图4

28、-2 集成块装配立体效果图4.5 Manifold prospectsHydraulic Manifold academic research and development has been the focus of research and engineering practice, by the importance of domestic and foreign hydraulic industry. Pro/ENGINEER software let virtual designers design thinking of two-dimensional digital inform

29、ation directly reflected in the simulation of realistic three-dimensional interface is intuitive feedback. With the three-dimensional graphics, more vivid and intuitive, easy installation and maintenance of technical designers and staff exchanges and complete idea of the design, implementation and t

30、esting faster and better.Hydraulic Manifold using three-dimensional parametric design software. Dimensional assembly structure makes the observation and analysis become intuitive. And designers can identify problems at the design stage as possible, it is also very easy to modify. I believe in the fu

31、ture of the manifold design, the use of three-dimensional parametric design software will be more widely applied! Hydraulic manifold design will become faster and easier.Chapter VI SummaryCurrently, domestic enterprises have been widely used computer-aided design products so that designers in the de

32、sign process to directly call the two-dimensional tiles Gallery edited directly by the good results. However, the two-dimensional design can not fully meet the requirements of the current industry practice. With the rapid development of computer technology, mechanical design has evolved from two-dim

33、ensional to three-dimensional design stage design stage. Modern product design approach is to start from the 3D model on solving enable designers to focus efforts on the part of the structural design and related issues. Therefore, the three-dimensional design method can be a good solution to a complex arrangem