RU199973U1 - VEHICLE POWER UNIT SUSPENSION SUPPORT - Google Patents

Abstract

The utility model relates to the field of mechanical engineering, namely, to the suspension support of the vehicle's power unit. The suspension support of the power unit of the vehicle contains a body fixedly connected to the areas of attachment to the vehicle body, a damping device made of an elastic material and connected to a central bushing, the movement of which is limited by the upper and two side bumpers made of an elastic material, said damping device includes into itself two damping elements vulcanized to the central bushing and holding the said central bushing inside the housing, while the damping device rests on the inner surface of the said housing. What is new is that the side bumpers are located opposite the central bushing, while the two sections of the said central bushing, to which the damping elements of the damping device are vulcanized, are limited by the corresponding planes LL and NN, forming an angle α, the value of which is in the range from 50 ° to 60 ° , wherein each of the sections of attachment to the body has a platform with two bent up elements with supporting surfaces, permanently connected to the outer surface of the specified body. The technical result consists in reducing vibrations transmitted from the power unit to the vehicle body, as well as in reducing the movement of the power unit relative to the structurally specified coordinates of its installation. 1 n. 5 h. p. f-ly, 4 ill.

Description

Technology area

The utility model relates to the field of mechanical engineering, namely to the suspension support of the power unit of a vehicle, for example, an internal combustion engine of a car.

Prior art

From the prior art, a suspension support for a power unit is known (see DE 10249387, IPC F16F 1/54, B60K 5/12, publ. 02/26/2004), containing a metal case, inside which a damping device with a metal core is installed for communication with the power unit of the transport facilities. The damping device is provided with two supporting elements holding the core; upper and two side bumpers. The upper baffle consists of two equally high protrusions formed on the metal core with the possibility of abutting against the inner surface of the upper section of the body, and the side bumpers are formed on the sidewalls of the metal baffle with the possibility of abutting against the inner surface of the side sections of the body.

From the prior art, a suspension support of a power unit of a vehicle is known (see the closest analogue - RU 54117, IPC F16F 1/36, B60K 5/12, publ. 10.06.2006), equipped with a metal body, in the cylindrical section of which a cylindrical cage is fixed. A damping device made of an elastic material with a metal core for connection to the suspension of the power unit, in particular to an internal combustion engine, is placed inside the said cage. The body is made of two separate elements, inseparably connected to each other and to the cage by welding to form a box-shaped cross-section. The body is provided with areas for attachment to the vehicle body with holes for fasteners. The aforementioned metal core includes a convex top portion, two opposite flattened side portions, and mounting holes for attaching the powertrain suspension. The damping device is equipped with two supporting elements (item 3 in Fig. 1), holding the metal core and located relative to each other at an angle close to 180 °; a central upper protrusion formed on the convex upper portion of the metal core and abutting against the substantially flattened upper bump, limiting the movement of the damper in the vertical direction, i.e. in the Z direction. The upper bumper is made of an elastic material and is formed on the concave inner surface of the cage. On the opposite two sides of the metal core, on the inner surface of the cage, two side bumpers are formed, made of an elastic material and limiting the movement of the damper device in the longitudinal direction, i.e. in the X direction.

The disadvantages of the above-described design can be attributed to the low efficiency of vibration absorption, since the side bumpers work ineffectively, since they are located above the metal core at the level of the central protrusion of the damping device; the angle between the two supporting elements of the damping device is close to 180 °, which provides low geometric stiffness in the vertical direction, for the perception of the necessary static and dynamic loads, it is necessary to use rubber of increased hardness, and this worsens the vibration-insulating properties of the entire device.

Disclosure of a utility model

The technical result consists in reducing vibrations transmitted from the power unit to the vehicle body, as well as in reducing the movement of the power unit relative to the structurally specified coordinates of its installation.

The specified technical result is achieved in the structure of the suspension support of the power unit of the vehicle, comprising a body fixedly connected to the areas of attachment to the vehicle body, a damping device made of elastic material and connected to a central bushing, the movement of which is limited by the upper and two side bumpers made of elastic material, the specified damping device includes two damping elements vulcanized to the central bushing and holding the specified central bushing inside the specified housing, while the damping device rests on the inner surface of the specified housing, according to the utility model, the side bumpers are located opposite the central bushing, while two sections of the said central bushing, to which the damping elements of the damping device are vulcanized, are limited by the respective planes LL and NN, forming an angle α, the value of which is are in the range from 50 ° to 60 °, with each of the sections of attachment to the body has a platform with two bent up elements with supporting surfaces, permanently connected to the outer surface of the specified body.

The angle α is 55 °.

The upper bump stop, limiting the vertical movement of the suspension of the power unit, is an arcuate element protruding towards the central hub.

In the upper part of the body, a recess is made in the form of a groove to form an inner surface of said body curved towards the central sleeve, to which the upper bump stop is vulcanized.

The central bushing is faceted.

The axes W1 and W2 of the damping elements of the damping device form an angle β, the value of which ranges from 60 ° to 100 °.

The set of features of the claimed utility model is in a causal relationship with the achieved technical result and is presented in the utility model formula.

It should be understood that those skilled in the art will be able to provide other embodiments of a powertrain suspension mount and that some of its parts can be changed in various other aspects without departing from the spirit and scope of the present invention. Accordingly, the explanatory figures and detailed description of the vehicle powertrain suspension mount are illustrative and not restrictive.

Brief Description of the Explanatory Figures

FIG. 1 - shows the proposed suspension support of the power unit of the vehicle, general view

FIG. 2 - shows a view A of figure 1.

FIG. 3 shows a view B of figure 2.

FIG. 4 shows a view C of figure 2.

The figures show:

1 - support (assembled);

2 - case;

3 - attachment areas;

3а - support platforms;

3b - elements with support surfaces;

4 - damping device;

4a - damping element of the damping device;

4b - damping element of the damping device;

5 - central bushing;

5a - a section of the central sleeve 5;

5b - a section of the central sleeve 5;

5c - a section of the central sleeve 5;

5d - a section of the central sleeve 5;

5f - section of the central sleeve 5;

6 - upper bump stop;

7 - side bumpers;

8 - fasteners;

9 - bracket;

10 - deepening.

The support 1 of the suspension of the power unit of the vehicle (hereinafter referred to as the support) comprises: a housing 2, fixedly connected to the sections 3 of attachment to the vehicle body; a damping device 4 made of elastic material and connected to the central sleeve 5; upper bump stop 6; two side bumpers 7 (see Fig. 1-4).

Damping device 4, central sleeve 5, top 6 and side 7 bumpers are located inside the body 2 of the support 1.

The central bushing 5 is a one-piece element with horizontally oriented fastening holes through which the fasteners 8 pass, connecting the bracket 9 of the power unit with the support 1. In a specific example of execution, the central bushing 5 is made of aluminum, and bolts can be used as fastening elements 8 , screws and / or similar devices performing a similar function with a similar effect.

The central sleeve 5 is made faceted and contains two sections 5a and 5b, made in the form of edges. Portions 5a and 5b of the central sleeve 5 are bounded by the respective planes L-L and N-N, forming an angle α, the value of which is in the range from 50 ° to 60 °. In a specific embodiment, the angle α is 55 °.

The damping device 4 includes two damping elements 4a and 4b, vulcanized to the respective sections 5a and 5b of the central bushing 5 and holding the said central bushing 5 practically in the center of the housing 2. In a specific embodiment, the damping element 4a is vulcanized to the section 5a, and the damping element 4b is vulcanized to the section 5b, while the said damping elements 4a and 4b of the damping device 4 rest on the inner surface of the housing 2 and are supporting elements for the central sleeve 5.

The axes W1 and W2 of the damping elements 4a and 4b, respectively, of the damping device 4 form an angle β whose value ranges from 60 ° to 100 °.

The described design of the central bushing 5 with a damping device 4 attached to it improves the vibration isolation properties of the support 1 of the power unit.

The body 2 is made of a metal frame, mainly of a cylindrical shape. In the upper part of the housing 2, a groove 10 is made in the form of a groove, forming an inner surface of the housing 2 bent towards the central bushing 5, to which the upper bump stop 6 is vulcanized. This design reduces the movement of the power unit when driving over rough terrain, off-road.

The upper bumper 6 is made of an elastic material and is an arcuate element protruding towards the location of the central sleeve 5, in particular towards the location of the section 5f made in the form of a face. During the movement of the vehicle, the vertical movement of the damper 4 from the central bushing 5 is limited by the above-mentioned upper bumper 6. The above-described structure of the upper part of the body 2 and the upper bumper 6 effectively dampens vibrations of the suspension of the power unit in the vertical direction (Z).

During the movement of the vehicle, the horizontal movement (X) of the damping device 4 with the central bushing 5 is limited by two side bumpers 7, vulcanized to the inner surface of the housing 2 and made of elastic material. These lateral bumpers 7 are located on opposite sides of the central sleeve 5, in particular opposite two of its sections 5c and 5d, made in the form of edges.

As an elastic material can be used rubber compounds based on natural or synthetic rubber.

The sections 3 for attachment to the vehicle body have a complex shape. Each of the body attachment portions 3 comprises a support platform 3a with a fastening hole for mounting the fastening elements and two substantially vertically bent upwards elements 3b with support surfaces. These supporting surfaces of the elements 3b are permanently connected to the outer surface of the housing 2 (see Fig. 1 and Fig. 3), which helps to reduce vibrations and increases the reliability of the support 1 of the power unit. In a specific embodiment, the supporting surfaces of the elements 3b are the peripheral portions of the said elements 3b. The specified permanent connection may be a weld connection or other reliable connection that performs a similar function with a similar result.

The utility model relates to the field of mechanical engineering, namely, to the suspension support of the power unit of a vehicle, for example, an internal combustion engine. The above-described design is technologically advanced in manufacturing and assembly and allows improving the vibration-insulating properties of the support 1 and, accordingly, reducing the transmission of vibrations from the power unit to the vehicle body.

Claims (6)

1. Suspension support of the power unit of the vehicle, comprising a body fixedly connected to the areas of attachment to the vehicle body, a damping device made of elastic material and connected to the central bushing, the movement of which is limited by the upper and two side bumpers made of elastic material, indicated the damping device includes two damping elements vulcanized to the central bushing and holding the said central bushing inside the housing, while the damping device rests on the inner surface of the said housing, characterized in that the side bumpers are located opposite the central bushing, with two sections of the said central bushing , to which the damping elements of the damping device are vulcanized, are limited by the corresponding planes LL and NN, forming an angle α, the value of which is in the range from 50 ° to 60 °, with each of the attachment areas to the body has a platform with two bent up elements with supporting surfaces, permanently connected to the outer surface of the specified body. 2. The suspension support of the power unit of the vehicle according to claim 1, characterized in that the angle α is 55 °. 3. The suspension support of the power unit of the vehicle according to claim 1, characterized in that the upper bump stop limiting the vertical movement of the suspension of the power unit is an arcuate element protruding towards the central bushing. 4. The suspension support of the power unit of the vehicle according to claim 1 or 3, characterized in that in the upper part of the body a recess is made in the form of a groove to form an inner surface of said body curved towards the central sleeve, to which the upper bump stop is vulcanized. 5. The suspension support of the vehicle power unit according to claim 1, characterized in that the central bushing is faceted. 6. The suspension support of the vehicle power unit according to claim 1, characterized in that the axes W1 and W2 of the damping elements of the damping device form an angle β, the value of which ranges from 60 ° to 100 °.

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