Transmission list head shaft rear bearing damage problem
2019-09-29 06:05:40
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Transmission list head shaft rear bearing damage problem
Source: Bearing network time: 2014-06-09
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CA6440 light passenger car; the front suspension adopts the vertical torsion bar type spring independent suspension; the connecting rod is connected with the frame and the steering knuckle. The torsion bar spring is connected with the lower control arm through the twisting arm; the lower control arm passes the front The beam is connected with the frame; the front support is formed; the torsion bar spring is connected to the transmission support beam through the fixed arm and the adjusting screw; the transmission support beam is connected with the frame to form a rear support. The force and moment in various directions are transmitted by the connecting rod system; The torque is received by the torsion bar spring. During the travel of the car; when the front wheel encounters the impact force in the horizontal direction; the front wheel and the steering knuckle are transmitted to the transmission support beam and the frame through the torsion bar spring, and the front wheel encounters When the impact force is in the straight direction; the front suspension is transformed into a changing torque by the torsion bar spring; it is transmitted to the transmission support beam and the frame. The front wheel is subjected to various impact forces and moments; the tire and the damper The knuckle, the yoke spring, the transmission beam and the frame are gradually absorbed; then the smoothness and safety of the car are ensured. In order to make the front wheels meet the forces and moments in all directions, they can effectively absorb with Fee; when the device is torsion bar spring; to add a certain pre-torque force. This pre-torque is equivalent to a large spring; cooperate with the damper to reduce the vibration effect; together also effectively absorb the direction from the front wheel The energy generated by the force and the moment. In order to make the two spring torsion bars have the same pre-torque force; the device and adjustment of the torsion bar spring must be strictly operated according to the technical specifications; this way to ensure the transmission of force and torque and absorption of the two front wheels The balance is reached during the energy process.
The tension spring of the car is adjusted after the rubber pad is damaged; although the car is in static state; the height of the adjusting screw is the same; but it is equivalent to increasing the length of the adjusting screw of the left lever spring; it is equivalent to reducing the pre-torque of the left torsion bar spring. During the movement of the automobile; the associated parts transmit the force and moment and absorb the energy; the appearance of the unequal size and the loss of balance will occur. The transmission is directly connected to the beam that transmits the force and torque from the front wheel and absorbs the energy; together Passing the force and torque between the engine and the drive axle. Thus; the tension spring adjustment screw is unilaterally damaged; the transmission is under stress; this "unbalance" will be exacerbated; and this "unbalance" One of the results of the effect; is to make the first axis of the transmission transmission and the engine's main parts transmission list "squeezing"; the force points will be collected on the front and rear bearings supporting the first shaft of the transmission. The front bearing is a sleeve sliding bearing; The rear bearing is a rolling bearing; the sliding bearing is more resistant than the rolling bearing; but it is highly resistant to damage; thus causing damage to the rear bearing of the first shaft of the transmission.
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