RU94879U1 - TOP SUPPORT OF THE GUIDING SPRING STAND OF THE SUSPENSION OF A CAR - Google Patents

Abstract

 The upper support of the guide spring strut of the vehicle suspension, consisting of the outer and inner bodies, between which there is an elastic elastic-damping element, characterized in that the outer and inner cases are made detachable, and the elastic elastic-damping element is made in the form of two, one above the other, cable elements connecting casing, each of these elastic elements is made in the form of a continuous flat cable element with two ends and 11 curved loop sections, in detachable clips with a shift of the terminations by an angle Δφ = π / 3, moreover, the outline of the working sections of the cable with the closed loop sections, having the form of flower petals, is repeated when it is rotated relative to the axis of symmetry by an angle π / 6.

Description

The utility model relates to the field of engineering, in particular, to the elastic damping elements of the suspensions of the crews of vehicles, in particular cars. At the same time, it can be used in any technical field to reduce overloads of units, instruments and equipment operating in conditions of intense vibration and shock.

Known is the upper support of the guide spring strut of a vehicle suspension bracket, comprising a bearing, an upper spring cup with a support-centering flange, an outer casing to which an inner casing is secured through a layer of an annular elastic insert, in which a stem shank is fixed (RF Patent ПМ No. 20879 / Kalinin S .N / Application No. 20011116972/20, declared 19.06.01, publ. 10.12.01).

A disadvantage of the analogue is the significant dependence of the stiffness characteristics of the support on temperature. So, in winter operating conditions, the stiffness of the elastic rubber insert increases significantly, which degrades the vibration-proof qualities of the support.

Other designs of the upper supports of the guide spring struts of the car suspension are also known (SS-20: RF patents for PM No. 37171, 34458), in which rubber elastic inserts with defects inherent in rubber products are used - rapid aging under the influence of temperatures changing over the season, cracking, change stiffness characteristics, low damping properties of supports.

Known compensation coupling, consisting of two detachable cases (half-couplers) and an elastic element connecting these cases, the latter is made in the form of a continuous flat cable element with two ends and k = 2n-1 curved loop sections, sealed in each of the cases with a shift of terminations by angle Δφ = π / n, and the outline of the working sections of the cable with the closed loop sections looks like flower petals with angular cyclic symmetry of order n, where parameter n is selected within 3 ... 8 (RF Patent ПМ No. 54645 IPC F16D 3/52. Compensation this coupling / Gunin V.A., Ponomarev Yu.K., Arkhangelsky S.V., decl. 10.01.06, publ. 10.07.06 bul. No. 19).

This invention is selected as a prototype.

The disadvantage of the prototype is the lack of angular bearing capacity of the device with mutual distortions of the inner housing relative to the outer.

The technical result, the achievement of which the creation of this utility model is aimed, is to ensure high reliability and durability of the support while reducing spatial vibrational loads on the crew due to the high and temperature-independent damping characteristics of the elastic element.

The technical result is achieved by the fact that in the known upper support of the guide spring strut of the vehicle suspension, consisting of the outer and inner bodies, between which there is an elastic elastic damping element, the outer and inner bodies are made detachable, and the elastic elastic damping element is made in the form of two, located one above the other cable elements connecting the case, each of these elastic elements is made in the form of a continuous flat cable element with two ends and the 11th curvilinear looped sections, pinched in detachable clips with a shift of the terminations by an angle Δφ = π / 3, and the outline of the working sections of the cable with the closed loop sections, having the form of flower petals, is repeated when it is rotated relative to the axis of symmetry by an angle π / 6.

The invention is illustrated by drawings, where:

figure 1 shows a top view of the vibration isolator with a partial section of the clamping ring and the cover, showing the location of the end and loop sections of the upper elastic element;

figure 2 is a view of the vibration insulator from the bottom with a partial section of the stepped sleeve and flange, showing the location of the end and loop sections of the lower elastic element;

figure 3 shows the workpiece of the cable element after zevolovanii and after installation in the inner and outer collapsible housing;

figure 4 shows the stepped sleeve of the inner casing with a local cut;

figure 5 shows the figured ring of the outer casing with a local cut;

figure 6 shows the inner ring with a local cut.

The vibration isolator (Fig. 1) consists of an internal collapsible housing 1 and an external collapsible housing 2. The internal collapsible housing 1, in turn, consists of a stepped sleeve 3, an inner ring 4 and a clamping ring 5, connected together by screws 6 (Fig. 1) and 7 (figure 2). The external collapsible clip 2 consists of a flange 8, a figured ring 9 and the cover 10, tightened with rivets 11. The internal collapsible clip 1 and the external collapsible clip 2 are connected to each other by the upper elastic element 12 and the lower elastic element 13 (Fig. 1), made in in the form of a continuous flat cable element with two ends and 11 curvilinear loop sections pinched in detachable clips 1 and 2 with a shift of the closures by an angle Δφ = π / 3, and the outline of the working sections of the cable 14 with the closed loop sections 15, having the form of flower petals , repeated when it is rotated relative to the axis of symmetry by an angle π / 6 (figure 3).

The ends 16 of the upper cable element are rigidly pinched in the holes of the cover 10, and the ends 17 of the lower cable element are rigidly pinched in the holes of the stepped sleeve 3. This relative arrangement of the cable elements ensures the stability of the elastic-damping properties and the structure as a whole provides a high degree of operational reliability.

The elastic elements 12 and 13 of the vibration isolator are made in the form of flat continuous cable coils of a curved shape, contrived before being installed in the inner and outer collapsible clips 1 and 2. Figure 3 shows the blank of the cable element. The coil has 11 loop sections 15 and two ends 16 (17), which for the lower cable element are installed in the holes of the step sleeve 3 and rigidly pinched in them, and the inner loop sections are pinched between the step sleeve 3 (Fig. 4) and the inner ring 4 by tightening the latter with screws 7, for which through threaded holes 18 are provided in the inner ring (Fig. 6). For the upper cable element, the inner loop sections are pinched between the inner ring 4 and the clamping ring 5 by means of screws 6. In the outer collar, the loop sections of the cables are pinched for the lower cable element - between the figured ring 9 and flange 8, for the upper - between the figured ring 9 and the cover 10. The constriction of the elements of the external collapsible cage 2 is carried out using rivets 11 (figure 1, 2). The distance between the elastic cable elements 12 and 13 in the outer collapsible cage 2 limits the figured ring 9 (figure 5) and in the inner collapsible cage limits the inner ring 4 (Fig.6).

The operation of the vibration isolator is as follows. The flange 8 is fixed on the car body for the holes 19 by means of bolts, and the upper shock absorber rod of the spring suspension is attached to the stepped sleeve 3 through the central hole. The vibration is transmitted to the curved lobes of the elastic cable elements 12 and 13, which, due to the curved shape and relative position, compensate for the installation errors of the vibrating object and effectively damp the vibrations.

The proposed utility model can be used in the automotive industry, transport engineering, light industry, other industries and implemented using known means. A theoretical study by the authors showed that the vibration isolator is able to provide a given degree of vibration and shock reduction. Moreover, the properties of the support are independent of the temperature conditions of use.

This proves the achievement of the technical result perceived by the applicant - ensuring high reliability and durability of the support while reducing spatial vibration loads on the crew due to the high and temperature-independent damping characteristics of the elastic element.

Claims (1)

The upper support of the guide spring strut of the vehicle suspension, consisting of the outer and inner bodies, between which there is an elastic elastic-damping element, characterized in that the outer and inner cases are made detachable, and the elastic elastic-damping element is made in the form of two, one above the other, cable elements connecting cases, each of these elastic elements is made in the form of a continuous flat cable element with two ends and 11 curved loop sections, sealed in detachable clips with a shift of the terminations by an angle Δφ = π / 3, and the outline of the working sections of the cable with the closed loop sections, having the form of flower petals, is repeated when it is rotated relative to the axis of symmetry by an angle π / 6.