Molao-motheo oa ho tiisa oa ho paka haholo-holo o itšetlehile ka phello ea labyrinth le phello ea ho beha.

Phello ea Maze: Sebaka se ka tlase sa microscopic sa shaft ha se lekane haholo, 'me se ka lekana feela le ho paka, empa ha se kopane le likarolo tse ling. Ka hona, ho na le lekhalo le lenyenyane pakeng tsa ho paka le shaft, joalo ka maze, 'me mochine o hatelitsoeng o le ka har'a lekhalo. E phunyeletsoa ka makhetlo a 'maloa ho finyella phello ea ho tiisa.

Ho hlahisa phello: Ho tla ba le filimi e tšesaane ea mokelikeli pakeng tsa ho paka le shaft, e etsang hore ho paka le shaft e tšoane le li-bearings tse thellang le ho bapala phello e itseng ea lubrication, kahoo ho qoba ho apara ka mokhoa o feteletseng oa ho paka le shaft.

Litlhoko tsa thepa ea ho paka: Ka lebaka la mocheso, khatello, le PH ea seaplane se tiisitsoeng, hammoho le lebelo le holimo, ho lla holimo, coaxiality, radial runout, eccentricity le lintlha tse ling tsa axially. nyeoe e arohaneng pompo, thepa ea ho paka e hlokahala ho ba le litšobotsi tse latelang:

1. E na le tekanyo e itseng ea elasticity le polasetiki

2. Botsitso lik'hemik'hale

3. Ho se kenelle

4. Ho itlotsa

5. Ho hanyetsa mocheso

6. Ho bonolo ho qhaqha le ho kopanya

7. Ho bonolo ho etsa le ho theko e tlaase.

Lintho tse ka holimo tsa thepa li ama ka ho toba ts'ebetso ea ho tiisa le bophelo ba tšebeletso ea ho paka, 'me ho na le lisebelisoa tse fokolang haholo tse ka finyellang ka botlalo thepa eohle e ka holimo. Ka hona, ho fumana lisebelisoa tsa boleng bo phahameng ba ho tiisa le ho ntlafatsa thepa ea bona ea thepa esale e le sepheo sa lipatlisiso lefapheng la ho tiisa.

Classification, sebopeho le tshebediso ya ho paka bakeng sa  lipompo tsa case axially split .

Ka lebaka la maemo a fapaneng a ho sebetsa, ho na le mefuta e mengata ea thepa ea ho paka. E le ho khetholla hantle le ho khetha ho paka, hangata re arola ho paka ho ea ka thepa ea motheo ea tiiso ea ho paka:

1. Ho paka fiber ea tlhaho. Ho paka fiber ea tlhaho haholo-holo ho kenyelletsa k'hothone ea tlhaho, line, boea, joalo-joalo joalo ka lisebelisoa tsa motheo tsa ho tiisa.

2. Ho paka fiber ea liminerale. Ho paka fiber ea liminerale haholo ho kenyelletsa ho paka asbestos, jj.

3. Ho paka faeba ea maiketsetso. Ho paka ha fiber ea maiketsetso haholo-holo ho kenyelletsa: ho paka graphite, packing ea carbon fiber, PTFE packing, Kevlar packing, acrylic-clip silicone fiber packing, joalo-joalo.

4. Ceramic le tšepe faeba packing Ceramic le tšepe faeba paka haholo-holo kenyeletsa: silicon carbide paka, boron carbide packing, mahareng-alkali khalase fiber packing, joalo-joalo Kaha thepa e le 'ngoe faeba e na le ho feta kapa ka tlaase ho tse ling thepa ka bobona Bothata ke hore e le 'ngoe. faeba e sebediswa ho loha sephutheloana. Kaha ho na le likheo pakeng tsa likhoele tsa ho paka, ho bonolo ho baka ho lutla. Ka nako e ts'oanang, likhoele tse ling li na le thepa e fokolang ea ho itlotsa ka botsona le coefficient e kholo ea likhohlano, kahoo li hloka ho kenngoa ka mafura le li-filler. le metsoako e khethehileng, joalo-joalo Ho ntlafatsa segokanyipalo le lubricity ea filler, tse kang: oli diminerale kapa molybdenum disulfide grease e tsoakiloeng le graphite phofo, talc phofo, mica, glycerin, oli ea limela, joalo-joalo, le impregnated polytetrafluoroethylene dispersion emulsion, le ho Eketsa palo e loketseng ea li-surfactants le li-dispersants ho emulsion. Li-additives tse khethehileng hangata li kenyelletsa likaroloana tsa zinki, li-barrier agents, molybdenum-based corrosion inhibitors, joalo-joalo ho fokotsa ho bola ha lisebelisoa tse bakoang ke ho paka li-filler.