O modo de vedação dos kits de vedação de óleo para escavadeiras tipo O
A vedação de óleo tipo O é usada principalmente para vedação estática e dinâmica, especialmente para a vedação do eixo alternativo. Os kits de vedação de óleo de escavadeira são um tipo de junta de vedação com seção circular. É uma espécie de selo de óleo universal, longo tempo de serviço. Borracha 1195446 CAT 312B 312BL 313B excavator Stick Arm cylinder Seal Kit is a kind of common elastomer oil seal. Além de serem usados como retentores estáticos de óleo, it is also widely used as hydraulic and pneumatic reciprocating seals for engine oil seals.
There are many factors affecting the sealing performance customized by rubber skeleton oil seal manufacturers, but in the final analysis, it is necessary to start with the sealing mechanism, explore the factors to achieve sealing, as well as the factors affecting the sealing performance, so as to carry out scientific and reasonable design and correct use, and extend its service life under the premise of ensuring the sealing.
The self-sealing mechanism of the imported rubber JCB JS200 6900-0754 kits de vedação, “automatic sealing” or “self-sealing” is realized through the elasticity of the elastomer material and the existence of the initial assembly interference or pre-tightening force. A rectangular section can be used to illustrate the principle. The initial thickness of the seal ring section under unconstrained condition is d. When installed in the groove at depth t, the compression is Δd, the interference between the oil seal ring and the mounting space.
As a result, the sealing contact surface is pretightened after installation before the medium is pressurized, or a contact stress is generated, which is not as harsh as the initial pretightening force of the washer in the bolted flange connection.
In the low hydraulic component sealing structure, the digger Volvo EC140B EC210B EC240B 14513718 kits de vedação generally realizes single-side sealing, aquilo é, only compressions in one direction, so that the oil seal seals of the skeleton oil seal kits for excavator manufacturers have a certain amount of compression, so as to meet the needs of the sealing oil circuit.
Sometimes, according to the requirements of structural space, it is difficult to realize the double-sided seal design in the structure, and have to use digger oil seal kits to realize the double-sided seal at the same time in practical application, facing the problem of how to choose the size of the oil seal and how to ensure the reasonable structure. Ao mesmo tempo, due to unreasonable design, improper sealing quantity design, improper sealing groove design, will make the bulldozer oil seal in unreasonable compression state. State, shorten its service life, disassembly can not continue to use. Portanto, only reasonable choice of structure can avoid such problems.