Drawing on the biological research methods, the author analyzes and synthesizes a large number of past and present pump mechanisms and machines, and further recognizes that they are not isolated from each other Because they are formed through the evolution of people's motivation under the functional requirements. Therefore, there must be a kind of kinship evolution between them. According to this, the author sort out "spiral evolution", "precession evolution" and "vortex evolution" And "differential evolution" and other evolutionary veins, some evolutionary laws were found in the process of compilation, and some innovative designs of vacuum pump machinery relying on evolutionary pedigree and evolution law were carried out. author believes that, m biological studying, giraffe has evoleved from original deer, man has evolved from ape, similar to this, all kinds of pump mechanisms and machines are not isolated, they are related to each other, some mechanisms ar e usually evolved from other mechanisms under the stimulation of machinery function demanded by people. thus there must be a genetic evolution relarionship among them according to this, the author put forward the venation of screw evolution, precession evolution and scroll evolution, and draw up the In the paper, the author introduces some evolution law found in the process of drawing up the evolution pedigree and some crative design of vacuum pumps based on the evolution pedigree. Keywords: vacuum pump, evolution, pedigree, innovation, pumps Carding and compilation of mechanical evolution pedigree Volumetric pumps that can generate cyclical changes in volume can be designed as vacuum pumps, internal combustion engines, compressors, displacement pumps, and pneumatic and hydro-powered machines. The large volume of such mechanical pumps has a great impact on human economic activities. Over the past hundred years, people have invested a great deal of manpower and material resources in the development and cultivation of such pumps. There have been thousands of machinery and programs, Made a lot of prototypes, some such as the triangular piston Wankel internal combustion engine and trochanter-type vacuum pump, fixed-chip vacuum pump and some patented type of rotor pump and compressor and vacuum pump has also become a popular commodity for a certain period of time. However, most of them are eliminated or disappear under the principle of "natural selection and survival of the fittest" and become "specimens" and "fossils" for people to study. However, on the basis of epistemology, understanding the past can only be understood now: Only by grasping the past and deeply understanding now can we better predict and march toward the future. They are the wealth accumulated by the creative predecessors for their later innovative designs. To this people often do not have full understanding. In the machinery industry, for those that are historical, past, old, people tend to see them as being eliminated and abandoned in the process of development or innovation. However, from an evolutionary point of view, standing at the height of history to analyze and synthesize, they are exactly the basis of innovation. Because they were "brand new" in the past, the so-called "old" is relative, while the "new" and "old" are only different in historical time zones. From the continuity of time, "old" New "basis, similar to the well-known" 586 "computer from" 486 "," 486 "from" 386 "and" 286 ". In addition, the author also believes that in order to organize the heritage that history has given us, we can compare and draw lessons from some research methods and laws in biology. Because in the physical world that makes up nature, machinery is not a natural object, but a human being. It was created by humanity in its unarmed hands with nature to meet some of its own functional requirements. Therefore it can be broadly regarded as an extension of human organs. For example, chopsticks are an extension of manpower, bicycles are an extension of human legs, electronic computers are an extension of the human brain, and vacuum pumps are engineered and manufactured by humans that can not obtain a vacuum from nature. Including human beings, biological development and evolution are characterized by generation after generation, from original to modern, from low to advanced, from simple to complex, which includes both inheritance and inheritance, and more variation and innovation. Any machinery as one of the artifacts, its development is inspired by the requirements of human function, and its development closely with the development of mankind, so inevitably and the biological carried out in nature, "natural selection, fitness Survival "evolution is similar. By the nineteenth century Darwin by Beagle cruises around the world, summarize the rich collection of biological data inspired by "evolution", the author collected a number of existing patents and data files in the pump institutions and machinery, in the After analyzing and synthesizing them, it is considered that the primitive horse that evolved from a primitive deer to a giraffe and a short, four-toe, to a modern horse that evolved into a tall, cloven-hoofed horse in the study of biology, resembled a frog in the form of a tadpole, a variety of pump mechanisms and machinery They are not isolated from one another. They are often evolved from basic, primitive, simple, low-level, similar, or similar institutions or machines evolving through the motivation of functional requirements. Therefore, there must exist an evolutionary relationship between them. If we find out the relationship and sort out the evolutionary context, we will not only avoid the inevitable repetition of the exploration that has been done with predecessors in the process of innovation, but also Can guide the initiation of innovative ideas because each evolutionary vein can extract the evolutionary laws that have been guiding and enlightening in the evolution that has taken place, and the end of the context is often the starting point for innovation, whereby the author Combing the typical basic structure of a crank rocker mechanism evolved into a single screw pump and spiral liquid ring pump and scroll pump, hemispherical swing rotor pump, differential pump and other pumps evolved context. [1] Second, the evolution of the crank rocker mechanism evolved into a single screw pump context - four-bar mechanism and the relationship between the Moineau pump Single-screw pump is a suitable for pumping thick fluid varactor pump, which can form Volume of the ever-larger sealed chamber to inhale the fluid, and then continue to reduce the cavity discharge, in particular, it does not have the intake valve to control the suction row, but also has a large enough monomer chamber and smooth flow to adapt to sticky The flow of thick fluid, of course, should also study whether it may be used as a vacuum pump, for which the evolution of the process of analysis and combing. The main sealing element of the pump structure is an eccentric screw (rotor) 1 with a round section in cross section and a stator 2 with a double helical cavity with an elongated hole formed by two straight lines and two semi-circular arcs in section; 3 The eccentric screw 1 is eccentrically driven by a drive shaft 4 having a pair of universal joints. As the rotor turns, the left end begins to form a gradually increasing volume. After two revolutions of the rotor, the fluid is sucked up to form a helical closed cavity with two lead lengths and two middle and small small heads. The closed cavity is axially displaced and eventually disappears on the right end, thereby forming a " Suck "and" row. " This is a more esoteric principle of function, the structure is exceptionally simple machinery. However, its evolutionary process is analyzed in terms of "evolution", which essentially evolved from the typical four-bar mechanism. As we all know, to conceive of a variable-body mechanism, in principle, only a pair of cyclical relative motion components in the body are sealed to form a closed cavity with a periodic change, thus a varactor pump mechanical. Four-bar mechanism (crank rocker) is a typical, basic prototype (equivalent to the original biological single-cell organisms), the use of its crank, connecting rod or pendulum in any member of the movement can be conceived mountain variety Capacity machinery. Figure A is the use of pendulum swing cycle design designed pendulum pump. The main drawback of this configuration is that the wobble sealing member has more unfavorable geometric factors, especially difficult to design a good sealing. However, sealing is an extremely important factor of a vacuum system, and thus it is difficult to obtain a high vacuum index. Changes in the institutional dimensions tend to give rise to qualitative changes in the characteristics of the organization. If the pendulum is increased in length to infinity, the trajectory at point C will be a straight line, forming a typical reciprocating pump (Figure B) Performance and transmission characteristics of a very wide range of applications, in addition to car tractors and other piston internal combustion engine piston compressor and piston pump. The reciprocating vacuum pump is a robust, reliable and durable pump, but it is bulky and has a large clearance volume that can only be used in harsh vacuum environments. Simplified structure is the designer's eternal pursuit, for which there have been used with a sliding pair of T-shaped connecting rod to omit the concept of the piston (Figure C), Obviously slip ring on the poor performance of the seal is the configuration is eliminated Become a "fossil" the main reason. Shortening the linkage is one way to make the configuration compact. As the linkage and the crank evolve to the same length (Figure D), the configuration will be more compact and again produce a qualitative change in stroke that will be four times the r , This configuration, like a compact, but in fact complex, it is not easy to get a wide range of applications. Figure E is a composite of Figure C and Figure D. That link with a circular structure. However, this causes again a problem of middle dead center, that is, at the middle of the stroke, the crank and the link overlap. Institutional movements will be uncertain. It is generally possible to solve this problem by cross-laminating two identical bodies (Fig. F) or adding a pair of planetary gears with a transmission ratio of 1: 2 as the "dummy mechanism" of the virtual constraint (Fig. G). Further, if the innovative idea is intensified by the helical configuration, it evolves into a single-screw pump (Figure H) [2] [3] [4]. That is, the configuration of Fig. E is no longer superposition of stages, but an infinite number of configurations of Fig. E are spirally superposed in the axial direction. The circular cross-section connecting rod evolves into an eccentric screw along the axial direction, and the crankshaft evolves into an eccentric drive shaft with a pair of universal joints. Spiral evolution is a key process in this evolutionary context. Single screw pump from another perspective for analysis, it