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 planetary gear |
Founded in 1996, China Xiqiang Pumps Co., Ltd. is professional planetary gear manufacturer and wholesaler for the household, industrial and agricultural industries. With 80% components home made, quality is better controlled here. GS, CE, UL, EMC & EMF certificates guarantee received products to be high quality for customers. We have become the long-term custom planetary gears supplier of world-class retailers such as B&Q, BAUHAUS, OBI, METRO, etc. |
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planetary gears show |
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These high performance planetary gear units increase torque by 25% with a reduction of 40-60% in space and weight compared to the current PDL series. S Series planetary gear units are available in eight harmonically developed sizes with torque ratings from 25,000 to 275,000 foot-lbs. Transmission ratios range from 3:1 up to 3,150:1.
"The S Series is based on exciting new technology," said Salvatore Spada, Brevini USA President and COO. "The S Series units incorporate four planetary gears instead of the usual three. The gears are perfectly balanced and operate with perfect load sharing. The four gears create much higher torque for the space that the gearbox occupies."
Improved gear bearing life is the key to S Series performance and durability. This improvement is the direct result of new bearing designs and production techniques. |
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Many machines can be made in different sizes: very large or very small versions of the same basic design are possible. Many conventional designs can be scaled down to the molecular size range (if some care is taken in the design).
As an example, planetary gears convert shaft power from one angular frequency to another. The planetary gear shown here has not been built experimentally but has been modeled computationally. Other than its small size, it's rather unremarkable. In normal use, the shaft at the left would rotate at one frequency, while the planet carrier at the right would rotate at a lower frequency. The casing would be prevented from rotating by a larger framework (not shown).
The casing is a strained silicon shell with predominantly sulfur termination. Each of the nine planetery gears attaches to the planet carrier by a carbon-carbon single bond. The planet carrier itself is held in position by a bearing attached to the casing which prevents it from sliding out of position. Similarly, the input shaft on the left is held in position by a second bearing, also attached to the casing, which prevents it from sliding out of position. The planets themselves are geared both to the casing and the central sun gear. As the input shaft rotates the planets are driven around and around within the casing, causing the planet carrier to rotate with the planets. |
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E-mail: sales@comparepumps.com |
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