RU158786U1 - VEHICLE POWER UNIT SUSPENSION SUPPORT - Google Patents

Abstract

1. Suspension support of a power unit of a vehicle, comprising a housing with attachment portions to the vehicle body and a cylindrical portion in which an annular element is placed with a damping device of elastic material provided with a metal core for communication with a power unit of the vehicle, moving the damping device with a core bounded by the upper chipper and two side chippers made of elastic material and located on the inner surface of the ring of the element, wherein the damping device is provided with two supporting elements holding the core and resting on the inner surface of the annular element, characterized in that the annular element is provided with an end flange on which transverse bumpers are made of elastic material in the form of protrusions directed towards the location suspension of the power unit to absorb the load in the transverse direction, and the side bumpers are located opposite the core, while the axes L1 and L2 of the supporting elements of the damper uyuschego device form an angle α, whose magnitude is in the range from 60 ° to 120 ° .2. The suspension support of the vehicle power unit according to claim 1, characterized in that the annular element is provided with hooks interacting with the end face of the cylindrical section of the body. A suspension bracket of a vehicle’s power unit according to claim 1, characterized in that the upper bump limiting the vertical movement of the power unit’s suspension comprises three elements protruding towards the core and made of different heights.

Description

Technical field

The invention relates to the field of mechanical engineering, namely to the suspension bracket of a power unit of a vehicle, for example, an internal combustion engine or a gearbox of a car.

State of the art

The support of the suspension of a power unit is known from the prior art (see analogue - DE 10249387, IPC F16F 1/54, B60K 5/12, publ. 02.26.2004), comprising a metal housing, inside of which there is a damping device with a metal core for communication with the power vehicle aggregate. The damping device is equipped with: two supporting elements holding the core and located relative to each other at an angle, the value of which does not exceed 90 °; top and two side bumpers. The upper chipper is two equally high protrusions formed on the metal core with the possibility of abutment in the inner surface of the upper part of the body, and the side chippers are formed on the sides of the metal chipper with the possibility of abutment in the inner surface of the side sections of the casing.

From the prior art, the suspension bracket 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 casing in the cylindrical portion of which a cylindrical ferrule is fixed. A damping device made of an elastic material with a metal core is placed inside the cage for connecting to the suspension of the power unit, in particular with an internal combustion engine. The housing is made of two separate elements, one-piece connected to each other and a holder by a welding connection with the formation of a box-shaped cross section. The housing is equipped with sections for fastening to the vehicle body with holes for fasteners. The above-mentioned metal core contains a convex upper section, two opposite flattened side sections and mounting holes for mounting the suspension of the power unit. The damping device is equipped with: two supporting elements (pos. 3 of Fig. 1) holding the metal core and located relative to each other at an angle whose value is close to 180 °; the central upper protrusion formed on the convex upper portion of the metal core and abutting against a practically flattened upper bump, restricting the movement of the damping device in the vertical direction, i.e. in the Z direction. The upper chipper is made of elastic material and is formed on the inner surface of the cage. On the opposite sides from the central axis of the metal core, two side bumpers are formed on the inner surface of the cage, made of elastic material and restricting the movement of the damping device in the longitudinal direction, i.e. in the direction of X.

The disadvantages of the above construction include the low efficiency of vibration absorption, because:

- lateral chippers work inefficiently, 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 rigidity 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-isolating properties of the entire device.

Utility Model Disclosure

The objective of the utility model is aimed at developing a suspension bracket for a power unit that effectively reduces the vibrations transmitted from the power unit to the vehicle body.

The technical result obtained by the implementation of the developed suspension bracket of the power unit is to reduce the transmission of vibration from the power unit to the body.

The specified technical result is achieved in the design of the suspension bracket of the vehicle’s power unit, comprising a housing with attachment areas to the vehicle body and a cylindrical section in which an annular element with a damping device of elastic material provided with a metal core for communication with the vehicle power unit is placed, moving the damping device with the core is limited by the upper chipper and two side chippers made of elastic material and located on the inner surface of the annular element, while the damping device is equipped with two support elements holding the core and resting on the inner surface of the annular element, according to the utility model, the annular element is provided with an end flange on which transverse bumpers made of elastic material in the form protrusions directed towards the location of the suspension of the power unit to absorb the load in the transverse direction, and the side bumpers are located on against the core, the axes L1 and L2 of the damping device supporting elements form an angle α, whose magnitude is in the range from 60 ° to 120 °.

The annular element is equipped with hooks interacting with the end face of the cylindrical section of the housing. In this case, the annular element may be made of plastic material.

The upper chipper, limiting the vertical movement of the suspension of the power unit, consists of three elements protruding towards the core and made of different heights.

The body can be made as a single piece with flanges and local bends forming convex sections.

The inner surface of the annular element and the outer surface of its end flange can be coated with an elastic material that combines the upper, side and transverse chippers, as well as the supporting elements of the damping device and at least the core sections that can contact with the said upper and side chippers.

The core may be made of aluminum.

The upper portion of the core can be made arcuate with a flattened central zone.

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

It should be understood that specialists in the art will be able to offer other options for the implementation of the suspension support of the power unit and that some of its details can be changed in various other aspects, without going beyond the essence and scope of the present utility model. Accordingly, the explanatory figures and the detailed description of the suspension bracket of the vehicle power unit are illustrative, but not restrictive.

Brief Description of Explanatory Figures

FIG. 1 - shows the proposed suspension of the power unit of the vehicle.

FIG. 2 - shows an explosion diagram of the proposed supports according to figure 1.

FIG. 3 - shows the body of the support.

FIG. 4 - view A is shown in figure 1.

FIG. 5 is a cross-sectional view BB of FIG. 4 with a schematic illustration of a power unit and a body.

FIG. 6 is an enlarged fragment C of figure 5.

The figures depict:

1 - support (complete);

2 - power unit;

3 - case;

4 - ring element;

5 - damping device;

6 - core;

9 - vehicle body;

10 - reference platform;

11 - reference platform;

12 - reference area;

13 - mounting hole;

14 - mounting hole;

15 - mounting hole;

16 - convex section of the body;

17 - convex section of the body;

18 - convex section of the body;

19 - lower flanging;

20 - upper flanging;

21 is a cylindrical section of the housing;

22 - the first end of the cylindrical section 21;

23 - the second end of the cylindrical section 21;

24 - hooks;

25 - end flange;

26 - cross chipper;

27 - mounting holes;

28 - bracket power unit 2;

29 - holes;

30 - the upper portion of the core;

31 - the Central part of the upper section 30;

32 - upper chipper;

32a, 32c - extreme elements of the upper bump 32;

32b is the central element of the upper bump 32;

33- side chippers;

34 - elastic material;

N is the inner surface of the annular element 4.

The suspension support 1 of the vehicle power unit 2 comprises a housing 3, an annular element 4, a damping device 5 provided with a core 6 for communication with said power unit 2.

The housing 3 of the support 1 is made in the form of an integral part, preferably of metal, mainly of steel, and contains: a cylindrical section 21; fastening sections to the vehicle body 9, made in the form of supporting platforms 10, 11 and 12 with corresponding mounting holes 13, 14 and 15 for mounting fasteners. As said fasteners, bolts, screws and / or similar devices that perform a similar function with a similar result can be used.

To increase the rigidity of the casing 3 with a relatively small mass, the casing 3 is made of local bends of the form, forming local convex sections 16, 17, 18, and contains a curved lower peripheral section, which is the lower flange 19, and curved upper peripheral sections, which are the upper flanges 20 .

The housing 3 contains a cylindrical section 21, on the opposite sides of which are located its first 22 and second 23 ends. An annular element 4 is fitted with an interference fit inside the cylindrical section 21, provided with at least two local hooks 24 interacting with the second end face 23 of the cylindrical section 21, which eliminates the spontaneous disconnection of the annular element 4 with the housing 3 and, thereby, increases the reliability of the support 1 during the period its operation in a vehicle.

The annular element 4 is also provided with an end flange 25, on the outer surface of which at least two transverse bumpers 26 are placed to absorb the load in the transverse direction (Y). The transverse bumpers 26 are made of elastic material and are protrusions directed towards the suspension of the power unit 2. The end flange 25 is a flattened ring conjugated by the inner surface without a gap with the first end 22 of the cylindrical section 22 of the housing 3. The above transverse bumps 26 provide a smooth progressive elastic characteristic in the transverse direction (Y), which reduces the transmission of vibration from the power unit 2 to the body 9. Placing the transverse bumpers 26 on the gesture end face flange 25 provides a reliable restriction of the movement of the power unit 2 in the transverse direction (Y).

In a specific embodiment, the annular element 4 is made of plastic material, in particular glass-filled Polyamide 6. However, this does not preclude the execution of the annular element 4 from another material.

The core 6 is an integral element with mounting holes 27 for mounting fasteners connecting the bracket 28 of the power unit 2 with the device 1. The core 6 is made of a material that is more rigid than the damping device 5. In a specific embodiment, the core 6 is made of aluminum and contains local recesses and / or holes 29 to reduce the mass of the support 1, but at the same time the connection of the latter with the suspension of the power unit 2 is maintained.

The upper section 30 of the core 6 is made arcuate with a flattened central part 31. On the inner surface N of the annular element 4 there is an upper chipper 32 made of elastic material and restricting the vertical movement of the damping device 5 with the core 6. The upper chipper 32 is three elements - two extreme 32a, 32c, between which the central 32b is located, protruding towards the core 6, in particular its upper portion 30. The said elements 32a, 32b and 32c are made of different heights, in particular, high This central element 32b exceeds the height of each of the extreme elements 32a, 32c made of the same height, which ensures smooth elastic characteristics in the vertical direction (Z) when the central part of the core 31 is in contact with the central element of the upper bump 32b. And at the same time, the above-described shape of the upper portion 30 of the core and the upper bump 32 allows you to effectively dampen the vibration of the suspension of the power unit 2 in the vertical direction (Z).

The damping device 5 is provided with two support elements 5a, 5b holding the core 6 practically in the central zone of the annular element 4 and, accordingly, of the cylindrical section 21 of the housing 3, while resting on the inner surface N of the said annular element 4. Axes L1, L2 of the respective support elements 5a, 5b of the damping device 5 form an angle α, the value of which is in the range from 60 ° to 120 °. An advantageous option is the implementation of each of the supporting elements 5a and 5b with a rectangular cross section, this allows the use of the support 1 a large cross-sectional area. This design provides geometrically static rigidity in the vertical direction (Z), in the range from 100 to 200 N / mm without the need for elastic material of increased hardness of more than 48 Shore, which significantly improves the vibration-isolating properties of the support 1 of the power unit 2.

On the inner surface N of the annular element 4 two side bumpers 33 are formed, located opposite the core 6 and restricting the longitudinal movement (X) of the damping device 5. The side bumpers 33 are made of elastic material.

As the aforementioned elastic material, rubber mixtures based on natural or synthetic rubber can be used.

The inner surface N of the annular element 4 and the outer surface of its end flange 25 are covered with an elastic material 34, combining the upper 32, side 33 and transverse 26 fenders, as well as supporting elements 5a, 5b of the damping device 5 and at least parts of the core 6 having the possibility of contact with the aforementioned upper 32 and side 33 chippers. This design allows you to implement the above chippers 26, 32, 33 of an elastic material without additional assembly operations.

Industrial applicability

The invention relates to the field of mechanical engineering, namely to the suspension bracket of a power unit of a vehicle, for example, an internal combustion engine or a gearbox of a car.

The above-described design is technologically advanced in manufacturing and assembly, has a relatively small mass. The housing 3 of the support 1 can be made of steel by stamping. The annular element 4 may be made of plastic material, in particular glass-filled polyamide, by injection molding, or may be made of a light metal alloy. The core 6 may be made of metal, preferably aluminum, by injection molding or extrusion. By vulcanization, the upper 32 and side 33 bumpers are inseparably connected with the ring element 4, the transverse bumpers 26 with the end flange 25, the supporting elements 5a, 5b of the damping device 5 and the damping material 34 with the ring element 4 and the core 6.

The above construction allows to improve the vibration-isolating properties of the support 1 and, accordingly, to reduce the transmission of vibrations from the power unit 2 to the body 9.

Claims (8)

1. Suspension support of a power unit of a vehicle, comprising a housing with attachment portions to the vehicle body and a cylindrical portion in which an annular element is placed with a damping device of elastic material provided with a metal core for communication with a power unit of the vehicle, moving the damping device with a core bounded by the upper chipper and two side chippers made of elastic material and located on the inner surface of the ring of the element, wherein the damping device is provided with two supporting elements holding the core and resting on the inner surface of the annular element, characterized in that the annular element is provided with an end flange on which transverse bumpers are made of elastic material in the form of protrusions directed towards the location suspension of the power unit to absorb the load in the transverse direction, and the side bumpers are located opposite the core, while the axes L1 and L2 of the supporting elements of the damper uyuschego device form an angle α, whose magnitude is in the range from 60 ° to 120 °. 2. The suspension bracket of the power unit of the vehicle according to claim 1, characterized in that the annular element is provided with hooks interacting with the end face of the cylindrical section of the body. 3. The suspension bracket of the power unit of the vehicle according to claim 1, characterized in that the upper chipper, restricting the vertical movement of the suspension of the power unit, consists of three elements protruding towards the core and made of different heights. 4. The suspension bracket of the power unit of the vehicle according to claim 1, characterized in that the annular element is made of plastic material. 5. The suspension bracket of the power unit of the vehicle according to claim 1, characterized in that the casing is made as an integral part with flanges and local bends forming convex sections. 6. The suspension bracket of the vehicle’s power unit according to claim 1, characterized in that the inner surface of the annular element and the outer surface of its end flange are coated with an elastic material that combines the upper, side and transverse chippers, as well as the supporting elements of the damping device and at least , sections of the core having the ability to contact with said upper and side chippers. 7. The suspension bracket of the power unit of the vehicle according to claim 1, characterized in that the core is made of aluminum. 8. The suspension bracket of the power unit of the vehicle according to claim 1, characterized in that the upper portion of the core is made arcuate with a flattened central zone.

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