Combined screw and forming process
A forming process and combined technology, applied to pump components, machines/engines, rotary piston type/oscillating piston type pump components, etc., can solve problems such as expensive equipment, low production efficiency, and obstacles to the widespread application of screws, and achieve reduction The effect of processing cost and saving cost
Active Publication Date: 2016-03-23
CHONGQING UNIV
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- Abstract
- Description
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- Application Information
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Problems solved by technology
[0003] In the prior art, the processing of the screw used in the screw pump requires a specially designed forming tool, and it is realized on a special screw processing machine tool. The production efficiency is low, and it is dependent on the accuracy of the machine tool itself, and the degree of standardization is low; while for the screw processing As far as machine tools are concerned, they are more dependent on imports, and the equipment is more expensive and the cost is high, which seriously hinders the wide application of screw rods.
If the existing screw has local defects, it will cause the whole to be scrapped
Method used
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Embodiment Construction
[0031] figure 1 It is a schematic structural diagram of the present invention, as shown in the figure: the combined screw of this embodiment, the screw 1 is formed by fixed connection of screw splits 2 arranged side by side in the axial direction; the number of screw splits 2 can be set according to needs, It is more inclined to be easy to form and can be standardized.
[0032] In this embodiment, the axial thicknesses of the screw splits 2 used to form the screw 1 are all the same, which is more conducive to standardization and reduces design and manufacturing costs.
[0033] In this embodiment, the axial thickness of the screw split Where h is the axial thickness of the screw body, and S is the screw lead; this structural size makes the axial thickness of the screw body thinner, forming a sheet shape, which is easy to cast or forge, and reduces manufacturing costs.
[0034] In this embodiment, the screw splits 2 are fixedly connected by bolt connection or riveting; a deta...
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Abstract
The invention discloses a combined screw rod and a forming process. The combined screw rod is formed in a manner that branch screw rod bodies axially arranged in parallel are fixedly connected. According to the combined screw rod, the branch screw rod bodies axially arranged in parallel are fixedly connected to form a combined structure, the branch screw rod bodies are smaller than an integrated screw rod in volume, and other manufacturing modes such as casting or forging can be adopted, so that special tools or machine tools are not required and the machining cost can be reduced; the casting or forging process can adopt a special mould for formation, is not dependent on the precision of the machine tool, and is easy for realizing standardization; and when a section has a defect, the section can be dismounted and replaced, so that the screw rod can be repeatedly used and the use cost of the screw rod is saved.
Description
technical field [0001] The invention relates to a liquid medium conveying machine, in particular to a screw pump with relatively high output pressure. Background technique [0002] The screw pump uses the rotation of the screw to suck and discharge the liquid. Several sealed spaces are formed between the suction port and the discharge port of the pump through the screw. With the rotation and engagement of the screw, these sealed spaces are continuously formed at the suction end of the pump. The liquid in the suction chamber is sealed in it, and moves from the suction chamber to the discharge end continuously along the axial direction of the screw, and the liquid enclosed in each space is continuously discharged. It can be seen from the above description that the screw is an important component of the screw pump. [0003] In the prior art, the processing of the screw used in the screw pump requires a specially designed forming tool, and it is realized on a special screw proc...
Claims
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IPC IPC(8): F04C15/00B23P15/00
Inventor 唐倩张元勋李忠华江振伟
Owner CHONGQING UNIV