Úrræðaleit Eaton Sending Gears & stokka

rekst Gears

Snubbing and clashing gears while shifting are frequent abuses to which unsynchronized transmissions are subjected. Light snubbing will do little damage. The real damage is done by the hard clash shift caused by engaging gears which are far out of synchronization. This can break pieces of metal from the ends of the clutching teeth. Clashing gears can be traced to one of three causes:

snubbed clutching gear teeth

Hafnað greip Gear Tennur

1. Röng Bragðvísi

This applies to drivers who are not familiar with the shift pattern or have not learned the RPM spread between shifts.

2. Kúpling

Clashing when starting up in first or reverse gear can be caused by insufficient clutch clearance or a dragging clutch not releasing properly. This makes the transmission countershafts and mainshaft gears continue rotating while the clutch pedal is depressed. Clashing results when the nonrotating sliding clutch is forced to mesh with a rotating mainshaft gear. Double clutching during lever shifts will also reduce snubbing and clashing.

3. inertial gildi

Countershafts og mainshaft veiðarfæri taka yfirleitt 3 að 5 sekúndur til að hætta að snúast eftir að kúplingin hafi verið óvirkur. Tilraun til möskva kúplingu gír með mainshaft gír áður en mainshaft gír hættir í för með rekst. Ef sending er ekki búin með kúplingu bremsa eða countershaft bremsa, það er nauðsynlegt að gera hlé á nokkrum sekúndum eftir niðurdrepandi kúplingu pedali áður en reynt er fyrstu þátttöku flutnings.

framleiðsla Marks

Sometimes gears are replaced or thought to be defective because of marks left on the gear by manufacturing processes. Þessar lýti, þó, do not contribute to gear failure and the gear should not be replaced because of these marks.

hob Marks

hob marks

These are cutting marks or lines formed during the initial cutting of the gear teeth. Hob marks on the tooth face will be removed by the shaving process, but hob marks in the root of the tooth will most likely remain, and may be found even on gears with much wear on them.

rakstur Marks

shaving marks on gear

The shaving operation leaves distinct diagonal marks on the face of the gear tooth. These marks can be distinguished from scoring marks by the fact they are diagonal, while scoring marks are more nearly vertical. Most shaving marks are removed during normal gear operation.

Gear Lipping

Gear Lipping

Lipping eða rakstur burrs, is the formation of “lips” at the tip of the gear teeth machining. Þessi "varir" eigi gera skaða á gír.

Gear Rattle á Idle

Mainshaft gears are designed to have a specified amount of axial clearance which allows them to rotate freely on the mainshaft. The amount of clearance is governed by the use of washers. Gróf hægagangi vél er hægt að setja upp titring, causing the mainshaft gears to rattle as they strike mating gears. This condition can usually be cured by improving the idling characteristics of the engine. Tolerance washers may have to be changed to bring the axial gear clearance to within tolerance on high mileage units. See the service manual for procedure and specifications.

Bol Twist og Fracture

Failure of transmission shafts through fracturing or twisting is caused when stresses are imposed on them which are greater than they were designed to withstand. The main causes for these failures are:

  1. Óviðeigandi clutching tækni.
  2. Byrjar í of hár gír.
  3. farangur.
  4. Tilraun til að byrja með bremsum læst.
  5. Transmission used for application it was not designed to withstand.
  6. Rekast bryggju þegar stuðningur.
  7. Röng uppsetning stillanleg 5. hjól.
fractured mainshaft

brotnum Mainshaft
Eins og með gír tennur, shafts may fracture as a result of fatigue or impact.

twisted mainshaft

Twisted Mainshaft
Loads not severe enough to cause shaft fractures may cause the shaft to twist.

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