Laminated spring support

FIELD: transport.

SUBSTANCE: laminated spring support contains pair of laminated spring packets that are directed opposite to each other on floating and fixed support elements with certain gap for coned part of fixed support element. Each pair of packets is secured individually by fastening elements to floating support.

EFFECT: securing even rigidity during spring support work part deformation and increase of reliability of laminated spring support fastening.

4 dwg

 

The invention relates to protection from vibration and can be used in any field of technology.

Known leaf bearing described in the book "Car: Basics design: Textbook for institutes of higher education "Automobiles and automobile economy". / Nju, Vchem, Annarbor and others - M.: mechanical engineering. 1986 - 304 S. (RIS s) [1].

Leaf bearing described in the specified source, the package contains leaf springs forming the spring means spatial fixation in the form of through holes in the root portion of the spring with a corresponding pin and a fixing leaf springs from moving or rotating in the transverse plane of support, attachment fittings pack leaf springs leaf springs and the nodes securing the support to the object.

Significant disadvantages of the known supports are asymmetrical support, lack of energy, inability to adjust the characteristics to achieve the required efficiency of protection from vibration and narrow scope.

Also known leaf bearing [2] adopted for the prototype. Bearing is made of at least two separate springs, diverging from the root - internal ends along the length of the angle from 0 to 180°.

Means for fixing the leaf springs and leaf springs generally made in the form of non-continuous glass is with holes on its base under the pin and the slots on the cylindrical part for preferably a dense package location leaf springs with simultaneous transmission of the holes on the front - the root portion of each leaf spring over the pin.

Attachment pack leaf springs leaf springs consists of two flanged bushings - inner threaded outer surface and outer with a threaded hole, and a non-through hole pins, compounds which together form a cylindrical body with an outer annular space to accommodate not solid glass with root - inner ends of the springs with pins, one ends of which are mounted in the holes of the glass and the other in the through holes of the flange outer flange of the bushing and the final fastening of the springs by screwing the flange bushings.

For securing the support to vibroisolation object in the internal flange of the sleeve is provided with a threaded hole.

The attachment of the working - outer part of the frame consists of two ring segments interconnected by transverse planes preferably spherical profile with the regulatory clearance to accommodate working - the outer part of the leaf springs. While working - the outer part of the springs is set in mounts directly or through non-metallic (rubber, composite) materials.

The invention is directed to the improvement of leaf supports.

Significant disadvantages of the supports [2] are:

1. N is RangeStart with deformation of the working side of the springs, i.e. the stiffness of the deformation in the direction of the short leaf springs more than a deformation in the opposite direction.

2. Not enough reliable fastening of packets leaf springs.

3. Not large enough rated load.

The technical result of the invention:

ensuring RangeStart with deformation of the working side of the springs in either direction along the longitudinal axis of support;

ensuring higher rated loads;

ensuring the reliability of the mounting packages leaf springs.

The above results are achieved due to the fact that leaf bearing contains a couple of packs of leaf springs, which in floating and stationary support elements are located opposite each other with a certain gap under the tapered portion of the stationary support member, each pair of packages individually attached fastening means to the floating support.

Types of spring supports at the top and their corresponding cross-sections are presented in figures 1-4.

Bearing contains springs 1, 2, at least one pair of packs of leaf springs b, C, D, E, F and G, I, J, K (1, 2) [or b, C, D, e, G, I, J (3, 4)], the internal floating support element 3, the fastening means 4, the outer stationary support element 7 or 8 (figure 1-4) and the rings 5, 6.

A couple of packages of leaf springs b, C, D, E, F and G, I, J, K (1, 2) [or b, C, D, E G, I, J (3, 4)] 3 floating and fixed 7 (or 8) the support elements are located opposite each other with a certain gap under the tapered portion R and Θ outer stationary support element 7 (or 8).

Each pair of packets leaf springs b, C, D, E, F and G, I, J, K (1, 2) [or b, C, D, e, G, I, J (3, 4)] is attached individually fastening means 4 to the internal floating support 3.

The vibrational energy from vibroisolating object on the Foundation is passed through the internal floating support element 3 on the leaf springs 1, 2 springs and the outer stationary support element 7 (or 8), that is, through the elastic connection. Therefore, the vibration is due to the settings of the oscillation of the leaf springs 1, 2 springs bearing on the frequency close to the frequency of dangerous oscillations, and incurred in connection with this paralyzing their reactive forces of inertia.

Thus, the reactive force of inertia is created by using elastic elements - leaf springs 1, 2 springs, communicating with one hand through the internal floating support element 3 vibroisolating the object, and the other through the outer stationary support element 7 (or 8) to the frame.

In addition to the elastic connection between vibroisolating object and frame support also provides frictional connection, which is due to the mutual displacement during deformation of the sheet p is dinner 1, 2, which leads to milesowego friction that dissipates vibrational energy which contribute significantly to reducing the transmission of disturbing effort on the frame.

Bearing, carrying out the elastic and frictional connection between vibroisolating object and the frame is thus spring-damper.

Leaf springs 1, 2 springs in addition to steel, can also be made of non-metallic materials, for example composite.

The outer stationary support element 7 (or 8) may be made from rubber, composite or other material as a buffer or for sound insulation.

Working cone surface P and Θ (2, 4) stationary support element 7 (or 8) provide the maximum possible elastic deformation of the plate springs on the one hand, and on the other hand through providingyou communication - efficient operation of the support elements in the horizontal radial direction.

Thanks to these characteristics, the placement of the leaf springs 1, 2 and the fastening support provides the ability to change the individual sheets to the other prior to installation on the object or modify existing ones, and therefore support is adjustable as to their rated load and frequency of natural oscillations.

In addition, some of the leaf springs 1, 2 can be the is removed from the support, also without changing the design if, for example, for an object requires less rated load.

These features enhance the possibility of applying one-size supports for multiple objects with different mass, and hence the scope of its application.

Thus, the novelty of the invention are revealed from the comparison with the prototype is that the leaf bearing contains a couple of packs of leaf springs b, C, D, E, F and G, I, J, K (1, 2) [or b, C, D, e, G, I, J (3, 4)], in which 3 floating and fixed 7 (or 8) the support elements are located opposite each other with a certain gap under the tapered portion R and Θ stationary support element 7 (or 8), with each pair of packages individually attached fastening means 4 to the floating support 3.

Any other support with the above advantages, features and distinctive characteristics are not known.

Currently being developed drawings for fabrication support. After manufacturing support planned testing on existing known methods.

Sources of information

1. "Car: Basics design: Textbook for institutes of higher education "Automobiles and automobile economy". / Nju, Vchem, A.N. Narbut and others - M.: mechanical engineering. 1986 - 304 (RIS s).

2. The Patent Is F. No. 2254506, F16F 1/18, 20.06.2005. Bull. No. 17. Leaf bearing (prototype).

Inscriptions on drawings

1 - upper springs;

2 - lower springs;

3 - internal floating support element;

4 - mounting means;

5 - outer ring;

6 - inner ring;

7 or 8 of the outer stationary support element;

B, C, D, E, F, G, I, J, K is the spring leaves (Fig.1-4);

B, C, D, E, F - top pack leaf springs (figure 2);

G, I, J, K - lower pack leaf springs (figure 2);

B, C, D, E - top pack leaf springs (figure 4);

G, I, J - lower pack leaf springs (figure 4);

M - threaded hole;

N - hole for fastening the outer stationary support element 7 (or 8) to the Foundation (base, frame);

R - top working the tapered surface of the outer stationary support element 7 (or 8);

Θ lower working the tapered surface of the outer stationary support element 7 (or 8).

Leaf bearing containing a package of leaf springs, mount packages leaf springs, floating and stationary support elements are leaf springs, characterized in that it contains a couple of packs of leaf springs, which in floating and stationary support elements are located opposite each other with a certain gap under the tapered portion of the stationary support member, each pair of packets to epasa individually fastening means to the floating support.



 

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