SU1341412A2 - Pneumatic elastic member - Google Patents

Abstract

The invention relates to mechanical engineering, in particular, to vibration-proof devices, and is dependent on the well-known pneumatic speech element described in and.with. , Vg 1100442. The purpose of the additional invention is to introduce ii (iBi, iHieHHe damping properties upon impact of mx loads due to lowering of 1 С1ПИН pressure of pressure on the casing shell 1. Under shock effect of the load, a sharp increase in pressure is transmitted for h; 1 there are 4 bottoms 2. which, having added ir-jacks 9. will open and transfer part of the air to the damper chamber 3. 1 or i (L с с 4 4 BO

Description

2, in which the disperse mode is related to mechanical engineering, namely, vibration protection devices.

The purpose of the invention is to increase the damping properties under shock loads by reducing the pressure in the rubber-cord casing.

The drawing shows pneumatic resilience | Element element, longitudinal section.

The pneumatic elastic element contains a rubber-casing sheath 1 with a bottom 2 to which the damper chamber 3 is attached. Part 4 of the bottom and valve 5 in the form

The salable hole 6 and the pipe 7 with the nozzle 8 are cut out and spring-loaded in the axial direction by springs 9. The rubber-casing shell 1 communicates with the pipe 7, the nozzle 8 of which is attached to part 4 of the bottom 2 by the flange 10. The end of the throttle hole 6 is located relative to the end of the nozzle 8 s the clearance I, which may vary when valve 5 is bent. In flange 10, weed; hole 12. Valve 5 can be pack. Yutn with a rubber seal 13. The upper part of the rubber-casing shell 1 is connected to the base plate 14.

Pneumatic elastic element works as follows.

In the non-working position of the air pressure,; | e1P1e in the rubber-cord shell 1 and the damper chamber 3 are the same.

With a smooth course of compression, the air pressure in the rubber-casing sheath 1 increases. At the same time, the valve 5 is pressed to the rubber seal 13 and the air from the rubber-casing shell 1 begins to flow into the damper chamber 3 through the throttle hole 6 with the small air П1, and the pipe 7 having high resistance and nozzle 8.

In this case, the oscillation damping occurs due to the interaction of jets flowing out at a certain speed from the throttle bore 6 and the nozzle 8, and the greater the speed of interlacing of the vibration-proof object (not shown), the more effective the interaction of air jets and the greater the resistance of the damper.

When compressing, the interaction of the opposing air jets is the more effective, the greater the speed of movement of the support plate 14, the higher the air pressure in the rubber-cord shell of the greater the deflection

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five

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valve 5 and m. Menbuje gap 1 1 between the boreholes of the throttle bore 6 and the nozzle 8, and the holes 12 at all possible frequencies of oscillations do not resist the flow of air.

Under impact of the load on the pneumatic elastic element, the air pressure in the rubber-casing shell 1 increases sharply, as a result of which the valve 5 bends and the gap 1 completely co-compensates. When this.m the flow of air into the damper chamber 3 does not occur. A sharp increase in air pressure in the rubber-cord casing 1 is transmitted through part 4 of the bottom 2, which is pressed against the springs; 9. opens and iiponycKacT part of the air in the damper chamber 3, 3, resulting in a decrease in air pressure inside the rubber-cord shell -1, part 4 of Lipz 2 closes, s, SOR 1 1 recovers; 1 appears and begins to operate jets | i;}; | ) eKT pneumatic elastic elept.

With a sharp course; pda1 ;; | the air pressure in the rubber-cord shell I decreases according to C |) aBnei:; iio s pressured em 1, air pressure in de m.h- (grain pot 3 and 3) 1 can-with up. VlpH is a first-line business: a ferment chamber 3 flows into the rubber-casing sheath 1 through the holes 12 and the gap between the canalioM 5 is rubber up and down 13-1.

In the case of chappog x (;. 1, about recoil and medlipn 1N air pressure of the air in the rubber corner of ob I the air in the damper chamber 3 flows through the holes 12, the gap 11, the throttle 6 and the pipe 7 with 8 in the opposite way: ipniui. It is this). The air flow does not occur; -;; d. sovatovat, plno, - concoction 1-) o- | -iv; 1enie gn; eu-1atg: cosco-oo elastic | -o men-ra during the course of 1-; 1ac1; less than n) n during compressed 1. In. -And; .- and.ep1nsm cycle is new;) STS.

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1 nevma- | -schest P1-ug1: st E.-umen-g but auth. CIS. .YO 1100442, () hl-nl (l1 {this is because it is good for human beings dsm1 (l has properties for shock loading, i; acTij, food, udiame-shrub is the base of the chord cord and has a valve with a throttle bore m and a pipe with a nozzle, cut-out: a and spring n (; sowing.

Claims (1)

Pneumatic elastic element according to ed. St. No. 1100442, characterized in that. in order to increase the damping properties of impact loads, a part of the bottom, less than 45 meters smaller than the base of the reso cord cord and having a valve with a throttle bore and a pipe with a nozzle, is cut and spring loaded in the axial direction I '] and.