Driveline Fabhtcheartú uilleachais

torsional Chreathadh

Seiceáil driveline U-Oibríocht Chomhpháirteach Angles

An gníomh de driveline le comh uilíoch ag an dá thaobh ag obair trí torthaí uillinn i tairiscint aisteach. Beidh an driveline dlús a chur agus mall síos faoi dhó i gcás gach réabhlóid. Má tá na huillinneacha ag obair ag ceachtar deireadh an seafta mhíchothrom, Torthaí creathadh torsional. Beidh an tonnchrith torsional claonadh a bhíonn féin a chur ar ceal amach an bhfuil an dá uillinn oibre comh comhionann.

Cineálacha Torann

Tá torainn nó tonnchreatha a tharlaíonn ach ag luasanna bóthair áirithe agus laghdaíonn mar méaduithe luas cúis ginearálta uillinneacha oibre éagothrom na n-alt driveline. Is féidir torainn nó tonnchreatha a bhfuil leanúnach ar fud an raon luas agus athraíonn i déine le athrú ar luas a ba chúis le línte tiomána unbalanced, drumaí coscáin neamhchothrom nó dioscaí, nó línte tiomána a bhfuil siúntaí uilíocha as chéim.

Seiceálacha Réamh

seiceálacha díobh seo a leanas a dhéanamh sula ndéanfaidh sé léamha uillinn:

  1. Check companion flange or yoke nut for looseness and torque to proper specification if necessary.
    driveline comh duillín
  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. I bhfocail eile, 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. chomh maith leis sin, 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.
    driveline unbalanced
    Línte tiomána a chomhardú dinimiciúil a treoluas rothlach beartaithe agus gan luasanna gan teorainn. dá bhrí sin, vibration can be expected when this rotational velocity is exceeded. Check concentricity of driveline by mounting on lathe centers and dial indicating. Seiceáil sonraíochtaí mhonaróra don liúntas runout.
  4. tacaíochtaí Inneall atá caite, briste nó scaoilte, and mounting pads that are worn or deteriorated must be corrected to restore the engine suspension to its original vibration tolerance.

Readings Ag tabhairt

plain, wing and flange driveline joint
plain driveline joint
universal joint

Take readings with protractor from machined surfaces of yokes or companion flanges. plain, Is féidir sciathán nó cineál flange joints a bheith ann. Some will require partial disassembly to obtain accurate readings.

Ar joints chineál plain, it may be necessary to remove the bearing cap. Nuair léamha á, make sure the universal joint is in a vertical plane. At the rear axle, take readings from a machined surface differential carrier that is in the same plane as the axle pinion shaft, nó ó dhromchla machined atá ingearach le seafta pinion, cibé acu is fusa.

Má tharlaíonn creathadh iad ag oibriú folamh, take readings in empty condition. Má tharlaíonn sé nuair atá sé lódáilte, take readings when loaded. When it is necessary to measure driveline lengths, measure from joint center to joint center

Ba cheart sonraíochtaí an mhonaróra a bheidh le leanúint nuair a dhéanamh seiceáil uilleachais tosaigh. 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.

Seiceálacha uilleachais - flanges Comhuaineach nó bráide

  1. Feithiclí Acastóra Aonair
    • uillinn tarchurtha – 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 chun 5 céimeanna i bhformhór na gcásanna.
      léamh uillinn tarchurtha
    • uillinn acastóra. Take reading either from machined surface of axle housing or pinion bearing retainer. This angle must be within one degree of the transmission angle.
      • Sampla: If transmission angle reading is 3 degrees down to the rear, the rear axle angle should be 3 céimeanna ar bun.
  2. Acastóirí Teaindim nó Feithiclí le hAonaid cúnta
    • Tóg léamh uillinn tarchurtha.
    • Take reading from joint of front tandem axle or auxiliary joint. This reading should be within one degree of transmission angle.
      • Nóta: The rear joint of front tandem axle will be the same as the front joint.
    • Tóg léamh uillinn comhpháirteach ag acastóir cúil éineacht, or axle to rear of auxiliary. This angle must be within one degree of transmission angle.

Joint Teorainneacha Uillinn Oibre (Comhuaineach)

tá siúntaí uilíocha ar uillinn oibriúcháin ar mó é, ag brath ar chineál agus as monarú. Déantar mar mholadh an uillinn comhoibrithe le cóimeáil comh comhthreomhar níos mó ná 8 céim ar feadh phríomh línte tiomána níos mó ná 40″ fada. I gcás is mó línte tiomána faoi 40″ níor chóir an uillinn uasta níos mó ná Fad (L) arna roinnt 5. (Ní bhaineann an teorainn sin le línte tiomána interaxle.)

Sampla: Le haghaidh 35″ driveline, the maximum joint working angle would be 35 móide 5 nó 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, má tá an tarchur 3 céimeanna síos, and the driveline angle is down 7 céimeanna, the transmission joint working angle is 7 lúide 3 nó 4 céimeanna.
Ar tiomáint am céanna nó suiteálacha cúnta, 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

Le feithiclí bonn gearr roth a bhfuil a fhad driveline íosta ó tharchur go acastóir, Tá an driveline a oibriú trí uillinneacha oibre an-dian ar roinnt suiteálacha. Baineann sé seo freisin línte tiomána a interaxle. uillinneacha Na comhoibriú dian aslú creathadh. Chun laghdú uillinneacha oibre, Tá an acastóra tilted aníos go dtí an centerline seafta pinion agus a tharchur mainshaft leathshlí Trasnaigh centerline idir na hionaid comhpháirteacha.

angularity check

Le acastóirí tiomána éineacht, the rearward axle is tilted upward until its pinion shaft centerline and forward axle pinion shaft centerline intersect midway between joint centers.

Nuair a figuring suiteálacha comh neamhchomhthreomhara, it is necessary to take the driveline angle readings as well as transmission and axle angle readings.

  1. Feithiclí Acastóra Aonair
    • Tóg léamh uillinn tarchuir
    • Tóg uillinn driveline
    • Tóg léamh uillinn comhpháirteach acastóra
    • Chun ríomh d'uillinneacha a cheartú:
      • 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.
      • Sampla:
        Is Tarchur 3 céimeanna síos
        Is driveline 7.5 céimeanna síos
        Is acastóir cúil 12 céimeanna síos
        dá bhrí sin 7.5 lúide 3 cothrom le 4.5 céimeanna
        12 lúide 7.5 cothrom le 4.5 céimeanna, giving 4.5 equal working angles
  2. Acastóirí Teaindim nó Feithiclí le hAonaid cúnta – 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. I bhfocail eile, take angle readings for each set of universal joints

Joint Teorainneacha Uillinn Oibre (Neamh-Comhuaineach)

Déantar mar mholadh an uillinn oibre uasta comh tionóil comh neamhchomhthreomhara níos mó ná an fad driveline mó arna roinnt 10. Mar shampla, má tá an fad driveline mó 55, Is é an uillinn comhoibrithe uasta 55 arna roinnt 10 nó 5.5 céimeanna. (Ní bhaineann an teorainn sin le línte tiomána interaxle.)

Coigeartuithe acastóra

Is féidir uillinneacha Acastóra a choigeartú go ginearálta faoi cheann de na bealaí seo a leanas, ag brath ar an gcineál acastóra.

  1. Coigeartaigh slata chasmhóiminte, más rud é cineál adjustable.
  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.

Fionraithe - pinion seafta Uillinn

Beidh a bheith ann beag nó aon athrú ar uillinn pinion acastóir le cineálacha fionraí a bhfuil gluaiseacht comhthreomharán. Seo ar chumas Cásálacha difreálach a bhogadh suas agus síos i ingearach díreach le linn oibriú.
Fionraithe gan bheidh gluaiseacht comhthreomharán a cheadú seafta pinion acastóra a oscillate i stua, rud a athrú de shíor uillinn seafta pinion le linn oibriú. Is féidir le méid a athraíonn de chreathadh tharlaíonn de bharr uillinneacha oibre de chuid an siúntaí uilíocha á momentarily éagothrom.
Ní mór d'fheithicl acastóir tiomána Aonair beagán nó gan aon athrú ar uillinn pinion acastóra le linn oibriú.

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