SU962692A1 - Shock insulating rope suspension - Google Patents

Description

(5) SHOCKING SHOCK WIRING SHOCK

one

The invention relates to damping devices and can be used to protect various objects from shock loads.

A cable damper is known, containing two parallel-arranged holders, one of which is intended to connect with the object to be protected, and the other with an oscillating base, and sections of curved cables connecting the clamps 1J.

However, the shock absorber does not allow objects to be suspended on it, since it has a low loading capacity.

Closest to the prong of the technical essence and the achieved effect is a shock insulation suspension, containing the container for the object to be isolated from the oscillating base of the object and the lines, the ends of which are fixed on the container L2.

The substructure is a low load capacity due to the fact that in the known device only the flexural rigidity of the cables is used, which is significantly less than its tensile rigidity. This, in turn, makes it difficult for the shock absorber to take a large static load. The increase in the carrying capacity of a known shock absorber by

10 increasing the number of cables does not always give the desired result, since it leads to a simultaneous increase in dynamic loads on the protected object.

15

The purpose of the invention is to increase the load capacity of the cable suspension and reduce dynamic loads.

The goal is achieved for

Claims (2)

20 due to the fact that the shock isolating rope suspension is equipped with rigidly fixed on the basis of friction elements, each of which interacts with a corresponding cable, weights suspended on the springs with which the free ends of the cables are connected, and tensioning devices intended for connection of the base with free the ends of the springs. The friction elements are made in the form of cylinders covered by the turns of the respective cables. The friction elements have zigzag through holes through which the corresponding cables pass. The drawing shows a shock insulation cable suspension with friction elements. J Impact resistant. the suspension contains container 1 with the protected object 2. Container 1 is suspended on cables 3 to the oscillating base k through friction elements 5, in which through zigzag holes 6 are made (Fig. 2), through which cables 3 are passed. Unloaded branches (ends) 7 cables 3 are connected with weights 8 suspended on springs 9 to the oscillating base by means of tensioning devices 10. Tensioning device 10 can be made in Hades of rod 11 with a thread on the cot, on which the nut 12 is screwed. a. The friction elements 5 are rigidly fixed on the oscillating base k and can be made in the form of cylinders covered by turns of the cables 3 The suspension works as follows. Container 1 with the protected object is suspended on cables 3. Since unloaded branches of 7 cables 3 tension devices 10 are pulled, they are in zigzag holes 6, or in places. the contact of the cables 3 with the friction elements 5 acts by frictional forces preventing the container 1 from lowering (they prevent the cables 3 from being pulled down through the undulating channels 6) tensioning the branches 7 of the cables 3 by the tension device 10 through the springs 9 and loads 8 is such that friction in friction elements 5 (in channels 6) is sufficient to hold container 1 with protected object 2 in the absence of dynamic effects on the base 4. It should be noted that due to friction in friction elements 5, the force of back pressure of branches 7 is necessary for The harness of the suspended elements (container 1 with object 2) is significantly less than the pulling force of the lower suit of cables 3 (below the friction elements 5). In the event of a sharp push of the base upward, the container 1 with the object 2, as well as the cargo 8, is immobile by inertia. Friction elements 5, together with the base, also tend to move upwards. At the same time, the tension of the branches 7 decreases sharply (due to the inertia of the loads 8), which leads to a sharp decrease in the friction forces in the friction elements 5 (releasing them and pulling the cables 3 downwards relative to the base by the amount of ground pushing k up. When the base k stops 8, the springs 9 are pulled upward with the same force. This tension is transmitted to the branches 7, the frictional force in the friction elements 5 increases and they are braked. The relative movements of the container 1 with the object 2 and the oscillating base k I cease. The protected object 2 with I container 1 is fixed in a new V. ATI with respect to the base kj position. When the ground is pushed (hit) + down, the cables 3 relax (because the container 1 with the object 2 by inertia tends to keep its position in space unchanged) branches 7 are pulled by weights 8, which tend to keep their position unchanged in space, and the friction elements are also released. 5, cables 3 are stretched out (overgrown), lifting them V1 upwards. When the base k is stopped, the weight of the container 1 and the protected object 2 is perceived by the cables 3, they become tight, the friction in the friction elements 5 increases and they are braked in the new position of the protected object 2 relative to the base; WA NIN i The gaps between container 1 and the oscillating base C should be chosen so that, at maximum impulses, the base does not collide with the container. In a shock isolating cable suspension, the weight of the suspended objects is taken up by the cables 3, which at the same time work on stretching. This leads to a significant increase in the load capacity of the suspension, since in this case objects of considerable mass can be installed on the suspension. Disinhibition suspension Guzlov. connecting carrier cables with oscillating base) for the time of base jerking and braking it when the jolts stop, provides a significant reduction in dynamic loads on the protected object. This is due to the absence of a power connection between the container 1 and the oscillating base during the latter's movement with acceleration (with sharp jolts). Changing the tension of the springs 9 It is possible to ensure the installation on the same suspension of different in mass objects. By making zigzag holes 6 in the friction elements 5 of different lengths or with different wave sizes, it is also possible to provide the necessary load bearing capacity of the suspension with the selected cables and tensioning devices. i The proposed shock isolating suspension can find the widest application in the installation of massive underground structures and their protection from earthquakes and powerful explosions. 9 2 The claims of the invention 1. A shock-isolating rope suspension i containing a container for an object to be insulated from an oscillating base and cables, one ends of which are fixed on the container, about one another. By the fact that, in order to increase the load capacity and reduce dynamic loads, it is equipped with friction elements fixed on the base, with each of them interacting with the corresponding TjJoc suspended on the bushing, loads with which the free ends of the cables are connected, and tension devices designed to connect the base to the free ends of the springs. . 2. Suspension according to claim 1, in contrast to the fact that the friction elements are made in the form of cylinders enclosed by the turns of the respective cables. . 3. Suspension according to claim 1, such that in the friction elements there are zigzag-shaped through holes through which the corresponding cables pass. Sources of information taken into account in the examination 1. USSR author's certificate number 2141156, cl. F 16 F 7/1, 1969. 2. USSR author's certificate No. 219595, CL R 16F 7/1, 1966 (prototype),