Controlled hydraulic shock absorber

FIELD: automotive industry.

SUBSTANCE: controlled hydraulic shock absorber comprises telescopic hydraulic two-tube shock absorber. The rod of the shock absorber is made of a hollow rod provided with the flange having a groove for roller thrust bearing and vertical slots from the other side. The hollow of the rod receives the hollow rod of by-pass valve for permitting vertical movement. The top section of the rod is provided with trapezium right thread, and the bottom section is provided with the stop for the spring of the valve. The driven pinion is screwed on the threaded part of the rod of the by-pass valve. The bottom of the driven pinion abuts against the roller thrust bearing that is mounted in the groove in the flange of the hollow rod. The second driven pinion is screwed on the threaded part of the valve rod. The top side of the pinion abuts against the roller thrust bearing. The third roller thrust bearing is interposed between the driven pinions. The driven pinions engage the driving gears mounted on the shaft of the electric motor. The control unit is connected with the electric motor and receives the signal from the pickups of suspension vibration and velocity pickup.

EFFECT: improved shock absorbing.

 

The invention relates to the field of transport engineering.

Known design telescopic hydraulic twin-tube shock absorber, consisting of the upper head, rod, piston with throttle openings, nuts, tank, cage cuff, spring, cuff, cuff rod, drive the bypass valve spring by-pass valve, disk valve recoil plate valve spring returns, the working cylinder, the valve body compression spring, compression valve, adjusting nut, valve compression lugs and tank [1].

The disadvantage of the design is its inability to regulate their characteristics when driving on different types of road profile.

The technical result of the invention is to increase the smoothness, reduce the body roll of the vehicle when cornering at high speeds, reducing shock loads of the suspension when driving on bumpy roads.

The technical result of the invention is achieved in that the inventive shock absorber includes a hollow stem with a flange having a groove in the thrust roller bearing, and on the other side of the vertical slot in the cavity of the rod is placed a hollow rod by-pass valve with the possibility of vertical movement in the upper part of which is cut a trapezoidal right hand thread, and in the lower part of them which is the focus for spring by-pass valve, in the stem cavity relief valve placed on the valve stem returns, in the upper part of which is cut trapezoid left-hand thread, and at the bottom there is a stop for the valve spring returns. Thus, moving in the vertical direction up or down, these stocks will compress or decompress the spring of the respective valves. On the threaded portion of the rod by-pass valve is screwed driven gear, the bottom plane resisting the thrust roller bearing, which is located in the groove of the flange of the hollow shaft. Similarly on the threaded portion of the valve stem returns screwed another driven gear, the top plane resisting the thrust roller bearing, pressed cover, bolted with four bolts to the flange of the hollow rod. Between the driven gears posted by another bearing roller. The driven gear engages with the leading gears mounted on the shaft of the motor keyed. The motor is connected to the control unit receiving signals through the amplifier signals from sensors oscillations of the suspension and the speed sensor.

The invention is illustrated by drawings: figure 1 presents a General view of the shock absorber on the side of the incision. Figure 2 - scheme of work shock absorber with adjustable feature.

The hydraulic shock absorber with adjustable features, what risticii consists of a tank 1, the working cylinder 2, the piston of the throttle holes 3, a hollow stem with a flange 4, stock bypass valve 5, the valve stem returns 6, the spring by-pass valve 7, a plate spring by-pass valve 8, a disk-pass valve 9, valve spring return 10, a plate spring return valve 11, the valve disc recoil 12, housing compression valve 13, valve spring compression 14, compression valve 15, the adjusting nut 16, the sleeve shaft 17, the spring cuff 18, the holder of the cuff 19, the nut of the tank 20, the lugs 21, the driven gears 22, bearings thrust roller 23, the gears leading 24, motor 25, the cover 26, a control unit 27, sensors oscillations of the suspension 28, a speed sensor 29, the amplifier signals of the sensors 30.

The absorber operates as follows: When the vehicle is moving in the control unit 27 receives the signal from the sensors of vibrations of the suspension 28 and the speed sensor 29 of the vehicle, through a signal amplifier 30, the control unit 27 can process these signals, and supplies the electric signal to the electric motor 25. The electric motor 25, rotating the driven gear 22 through the wheel 24 moves the valve stems 5 and 6, thereby changing the compression force of the valve spring 7 and 10, and therefore, the throughput of the throttle openings of the piston 3 and the power of resistance of the shock absorber when the strokes of compression and rebound within wide limits.

The use of the claimed image is to be placed will increase the smoothness, to reduce the body roll of the vehicle when cornering at high speeds, to reduce the shock load of the suspension when driving on bumpy roads due to changes in characteristics of the shock absorber.

The source of information

1. Hydraulic shock absorbers of vehicles / Derborence A.D.): mechanical engineering, 1969 - 236 S.

The hydraulic shock absorber with adjustable characteristic, consisting of a telescopic hydraulic twin-tube shock absorber, characterized in that the piston rod of the shock absorber consists of a hollow rod with a flange having a groove in the thrust roller bearing, and on the other hand is vertical slits in the cavity of the rod is placed a hollow rod by-pass valve with the possibility of vertical movement in the upper part of which is cut a trapezoidal right hand thread, and in the lower part there is a stop for the spring, bypass valve, the stem cavity relief valve placed on the valve stem returns, in the upper part of which is cut trapezoid left-hand thread, and the lower section has the focus for valve spring returns the threaded portion of the rod by-pass valve is screwed driven gear, the bottom plane resisting the thrust roller bearing, which is located in the groove of the flange of the hollow shaft, in a similar manner on the threaded portion of the valve stem returns screwed the other is AI driven gear, the top plane resisting the thrust roller bearing, pressed cover, bolted with four bolts to the flange of the hollow shaft between the driven gears posted by another thrust roller bearing, driven gear engages with the leading gears mounted on the shaft of the motor keyed to the motor connected to the control unit receiving signals through the amplifier signals from sensors oscillations of the suspension and the speed sensor.



 

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