Pogonski sklop Angularity problema

torzijske vibracije

Provjera Driveline U-Joint Operation Angles

Akciju na pogonskim sklopom sa kardanskim zglobom na svakom kraju rade kroz rezultate ugao u čudnom pokretu. Pogonski sklop će ubrzati i usporiti dva puta za svaki revoluciju. Ako se radi kutova na oba kraja vratila su nejednake, torzijske rezultati vibracija. Ovo torzijske vibracije će težiti da poništi samo od sebe ako oba zajedničke radne uglovi jednaki.

Vrste buke

Buke ili vibracija koja se javlja samo na određenim brzinama i smanjuje kako se povećava brzina je obično uzrokovana nejednakim radna uglove pogonski sklop zglobova. Buke ili vibracije koji je uporan u celom opsegu brzina, koje se razlikuju u intenzitetu sa promjenom brzine može biti uzrokovana neuravnotežen pogonske sklopove, neuravnotežen doboša ili diskovima, ili pogonske sklopove s univerzalnim spojevima iz faze.

preliminarni Čekovi

Da provjere od sljedećeg prije nego što kut čitanja:

1. Check companion flange or yoke nut for looseness and torque to proper specification if necessary.
   
2. Driveline slip joints that do not have the arrows or other markings pointing to each other will result in the driveline universal joints being out of phase. Drugim riječima, the transmission universal joint may be turned one spline or more to the right or left of being aligned with the universal joint at the opposite end of the driveline.
   • Some computer designed drivelines are purposely built with U-joints out of phase. Check manufacturer’s specifications for proper setting. takođe, check closely to make certain no twist has occurred to the tubing, causing these two joints to be out of phase Make sure the slip joint works freely and is not bound or seized. Slip joints must absorb axle housing movements.
3. Unbalanced drivelines can cause vibration that occurs throughout the speed range of vehicle and varies in intensity with a change of speed. The driveline may be at fault in respect to balance and concentricity. A quick field check to determine driveline balance can be made by securing a small piece of metal or similar weight with a hose clamp to the front of the tube where the splined shaft is welded. Road test the vehicle and continue to move the weight around the tube until the balance point is found and vibration disappears or is minimized.
   
   Pogonske sklopove dinamički uravnotežena u svoje rotacije brzine namijenjen, a ne beskonačna brzina. tako, vibration can be expected when this rotational velocity is exceeded. Check concentricity of driveline by mounting on lathe centers and dial indicating. Provjerite specifikacije proizvođača za odstupanje dodatak.
4. Motor nosača koji su nosili, slomljena ili labava, and mounting pads that are worn or deteriorated must be corrected to restore the engine suspension to its original vibration tolerance.

uzimajući Readings

Ako dođe do vibracija prilikom rada prazna, take readings in empty condition. Ako se dogodi pod opterećenjem, take readings when loaded. When it is necessary to measure driveline lengths, measure from joint center to joint center

Specifikacije proizvođača treba slijediti prilikom inicijalne provjere Pravokutnost. Some manufacturers have found it necessary to vary from the ideal due to geometrical limitations. If vibration persists after adhering to manufacturer’s specifications, contact the manufacturer’s representative.

Pravokutnost Čekovi - paralelnim stopama ili Yokes

1. Jedna osovina vozila
   • kut prenos – Take reading of transmission angle. This angle is the angle to which the rear axle joint angle must match. The transmission angle will have a declination reading of from 0 u 5 stupnjeva u većini slučajeva.
     
   • kut osovine. Take reading either from machined surface of axle housing or pinion bearing retainer. This angle must be within one degree of the transmission angle.
     • primjer: If transmission angle reading is 3 degrees down to the rear, the rear axle angle should be 3 stepeni gore.
2. Tandem osovina ili vozila s pomoćnim jedinice
   • Uzmite prijenos kut čitanja.
   • Take reading from joint of front tandem axle or auxiliary joint. This reading should be within one degree of transmission angle.
     • Bilješka: The rear joint of front tandem axle will be the same as the front joint.
   • Uzmite čitanje zajedničkih ugla na tandem zadnjoj osovini, or axle to rear of auxiliary. This angle must be within one degree of transmission angle.

Zajedničke radne Angle Limits (paralelno)

Universal spojevi imaju maksimalni radni kut, ovisno o vrsti i proizvodnje. Preporučuje se da zajednička radna kut za paralelne zajedničkog okupljanja ne prelazi 8 stupnjeva za glavne pogonske linije preko 40″ dugačak. Za glavne pogonske sklopove ispod 40″ maksimalni kut ne smije biti veća od dužine (L) podijeljena 5. (Ovo ograničenje se ne odnosi na Međuosovinsko pogonske sklopove.)

primjer: Za 35″ pogonski sklop, the maximum joint working angle would be 35 plus 5 ili 7degrees. This working angle must not be exceeded.

Place protractor on driveline to obtain angle of driveline from transmission to axle. The difference between the driveline angle and the joint angle is the joint working angle. For instance, ako je prenos 3 stepeni dole, and the driveline angle is down 7 stupnjeva, the transmission joint working angle is 7 minus 3 ili 4 stupnjeva.
Na tandem disk ili pomoćne instalacije, take readings in the same manner, comparing the universal joint angles to the driveline angle to which it is attached.

Angularity Checks – Non-Parallel Compensating Angles or Flanges or Yokes

Sa tandem mostovi, the rearward axle is tilted upward until its pinion shaft centerline and forward axle pinion shaft centerline intersect midway between joint centers.

Kada figuring non-paralelni zajedničkim instalacijama, it is necessary to take the driveline angle readings as well as transmission and axle angle readings.

1. Jedna osovina vozila
   • Uzmite kut čitanje prijenosa
   • Uzmite kut pogonski sklop
   • Uzmite kut čitanje osovine zajedničkih
   • Izračunati za pravilnu uglova:
     • The difference between the driveline angle and the transmission angle will be the transmission joint working angle.
     • The difference between the driveline angle and the axle angle will be the axle joint working angle.
     • The two working angles of transmission and axle must be equal.
     • primjer:
       prenos 3 stepeni dole
       pogonski sklop je 7.5 stepeni dole
       Stražnja osovina je 12 stepeni dole
       tako 7.5 minus 3 jednak 4.5 stupnjeva
       12 minus 7.5 jednak 4.5 stupnjeva, giving 4.5 equal working angles
2. Tandem osovina ili vozila s pomoćnim jedinice – When taking readings on tandem drive axles or between auxiliary and rear axle, the same principles apply as with single axle vehicles. Take readings between transmission and front tandem axle, or auxiliary. Take readings between axles or between auxiliary and axle. Drugim riječima, take angle readings for each set of universal joints

Zajedničke radne Angle Limits (Non-Parallel)

Preporučuje se da maksimalno zajedničke radne kut za ne-paralelne zajedničke skupštine ne prelazi glavnu dužinu pogonski sklop podijeljena 10. Na primjer, ako je glavni dužina pogonski sklop je 55, maksimalni zajedničku radnu ugao 55 podijeljena 10 ili 5.5 stupnjeva. (Ovo ograničenje se ne odnosi na Međuosovinsko pogonske sklopove.)

osovina Adjustments

Osovina uglova općenito mogu biti prilagođen jedan od sljedećih načina, ovisno o vrsti osovine.

1. Prilagodite moment šipke, ako podesiva tip.
2. Add to or reduce length of non-adjustable torque rods.
3. Add or reduce the number of shims behind torque rod brackets.
4. Use correct amount of wedge shims under spring to axle pad.

Suspenzije - Pinion Shaft Angle

Tu će biti malo ili nimalo promjena osovine zupčanika ugao sa vrstama suspenzija koje imaju paralelogram pokret. Oni omogućavaju diferencijal kućišta za pomicanje gore i dolje u ravno vertikalno tijekom rada.
Suspenzije nemaju paralelogram pokret će omogućiti osovina zupčanika vratila da oscilira u luku, čime se stalno mijenjaju zupčanik kut osovine tokom rada. A različite iznos od vibracija se može javiti izazvane radeći uglova univerzalnih spojeva kao trenutak neravnopravan.
Jedan most vozila imaju malo ili nimalo promjena kuta osovine zupčanika tijekom rada.

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