CN214221897U

CN214221897U - Engine damping support

Info

Publication number: CN214221897U
Application number: CN202023165292.4U
Authority: CN
Inventors: 王瑞智; 张明亮; 陈姚伟; 郭坤圃; 张洪倩
Original assignee: Zhengzhou Foguang Power Generation Equipment Co Ltd
Current assignee: Zhengzhou Foguang Power Generation Equipment Co Ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-09-17
Anticipated expiration: 2030-12-23

Abstract

The utility model discloses an engine damping support, which comprises an engine supporting leg, a shock absorber and a fixed support, wherein the shock absorber is fixed between the engine supporting leg and the fixed support; the fixed support comprises a top plate, a bottom plate and side plates connected with the top plate and the bottom plate, the top plate is an inclined plate, an included angle between the top plate and the bottom plate is an acute angle, and the shock absorber is fixed on the top plate. The utility model raises the fixed point of the engine support leg through the fixed support, and reduces the force arm of the impact force on the engine support leg in the vibration process; the fixed support is arranged to be inclined plane supporting, the shock absorber is arranged between the supporting leg of the engine and the fixed support, force is decomposed at the fulcrum of the shock absorber, damage to the shock absorber is reduced, vibration energy in the impact process is absorbed by the shock absorber as far as possible, vibration transmitted to the engine is reduced, and therefore the engine is protected better.

Description

Engine damping support

Technical Field

The utility model relates to an engine technical field, more particularly, the utility model relates to an engine shock absorber support.

Background

The engine is widely applied to the fields of operation mobile command centers, communication control centers, radar stations, aviation command towers, television transfer stations, radio broadcast transmission stations, mechanical and electronic repair centers, field hospitals, exploration and exploration stations, field kitchens, mobile power stations and the like, the requirement on the shock absorption of the engine is generally high in the applications, particularly the requirement on the current light weight is met, the engine gradually changes heavy cast iron into an all-aluminum alloy structure, the strength of the fixed point of the support leg on the engine cylinder body is reduced while the weight is reduced, and good shock absorption measures are considered to be adopted in vehicle-mounted power stations with high vibration requirements. Conventional engine block damping generally employs a right angle configuration to secure the damper to the mounting chassis. Under the poor road conditions such as off-road conditions, the vibration transmitted to the engine by the vehicle has large moment impact on the fixing position of the support leg on the engine in three directions, so that the fixing point of the support leg and the engine or the damage of the support leg is easily caused. Moreover, the engine is generally required to be capable of generating electricity by running, the engine can generate vibration, the possibility of resonance with vibration transmitted by the chassis exists, and the danger is also caused to the engine supporting legs and the cylinder body.

Therefore, providing an engine mount with good damping effect becomes a key point for those skilled in the art to solve the technical problems and research.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems that the prior engine damping structure easily causes the damage of the fixed point of the supporting leg and the engine, the supporting leg and the engine cylinder body, the utility model innovatively provides an engine damping support which raises the fixed point of the supporting leg of the engine through the fixed support and reduces the force arm of the impact force on the supporting leg of the engine in the vibration process; the fixed support is arranged to be inclined plane supporting, the shock absorber is arranged between the supporting leg of the engine and the fixed support, force is decomposed at the fulcrum of the shock absorber, damage to the shock absorber is reduced, vibration energy in the impact process is absorbed by the shock absorber as far as possible, vibration transmitted to the engine is reduced, and therefore the engine is protected better.

In order to realize the technical purpose, the utility model discloses an engine damping support, include: the shock absorber is fixed between the engine supporting leg and the fixed support;

the fixed support comprises a top plate, a bottom plate and side plates connected with the top plate and the bottom plate, the top plate is an inclined plate, the top plate and the included angle of the bottom plate are acute angles, and the shock absorber is fixed on the top plate.

Further, the damper is a bell-shaped damper.

Further, the shock absorber comprises a center bolt, a center positioning block, an upper padding plate, a lower padding plate, a movable inner ring, a fixed outer ring and a damping block, wherein the center positioning block is sleeved on the center bolt, the upper padding plate is sleeved on the upper portion of the center positioning block, the movable inner ring and the fixed outer ring are funnel-shaped, the upper portion of the movable inner ring is sleeved on the lower portion of the center positioning block, the lower portion of the movable inner ring is sleeved on the center bolt, the fixed outer ring is sleeved on the outer portion of the movable inner ring, the damping block is filled between the movable inner ring and the fixed outer ring, the axial length of the fixed outer ring is smaller than that of the movable inner ring, the damping block surrounds the movable inner ring and axially extends out of the fixed outer ring, and the lower padding plate is sleeved on the center bolt, the lower base plate is located below the upper base plate, and the movable inner ring, the damping block and the fixed outer ring are located between the upper base plate and the lower base plate.

Furthermore, the upper backing plate is fixed below the engine supporting leg, and the fixed outer ring is fixed below a top plate of the fixed support.

Further, the damping block is damping rubber.

Further, the included angle between the top plate and the bottom plate is 45-60 degrees.

Further, the included angle between the top plate and the bottom plate is 60 degrees.

Further, the engine leg is V-shaped.

Further, a supporting plate is arranged at an opening of the engine supporting leg.

Further, the supporting plate is perpendicular to the top plate of the fixing support.

The utility model has the advantages that:

(1) the engine damping support of the utility model raises the fixed point of the engine support leg through the fixed support, and reduces the force arm of the impact force on the engine support leg in the vibration process; the fixed support is arranged to be inclined plane supporting, the shock absorber is arranged between the supporting leg of the engine and the fixed support, force is decomposed at the fulcrum of the shock absorber, damage to the shock absorber is reduced, vibration energy in the impact process is absorbed by the shock absorber as far as possible, vibration transmitted to the engine is reduced, and therefore the engine is protected better.

(2) The utility model discloses a bumper shock absorber is bell-shaped bumper shock absorber, and this bumper shock absorber can bear power, axial tension or the pressure of any direction of radius, and inner structure presss from both sides the damping piece for funnel face and funnel face, the lifting surface area of improvement damping piece that can be bigger to with the effort dispersion, reduce the atress under the various complicated operating modes and to the harm of engine landing leg, and then can protect the engine better.

Drawings

Fig. 1 is a schematic structural view of an engine damping mount according to an embodiment of the present invention.

Fig. 2 is a force analysis diagram of the engine damping mount according to the embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a shock absorber according to an embodiment of the present invention.

Fig. 4 is a sectional view taken along the line a-a of the damper of fig. 3 according to the embodiment of the present invention.

In the figure, the position of the upper end of the main shaft,

1. an engine leg; 2. a shock absorber; 3. a fixed support; 11. a support plate; 21. a center bolt; 22. a central positioning block; 23. an upper base plate; 24. a lower base plate; 25. a movable inner ring; 26. a fixed outer ring, 27 and a damping block; 28. a nut; 31. a top plate; 32. a base plate; 33. side plates.

Detailed Description

The engine damping support provided by the invention is explained and explained in detail below with reference to the attached drawings of the specification.

As shown in fig. 1, the embodiment specifically discloses an engine damping support, which comprises an engine leg 1, a damper 2 and a fixed support 3, wherein the damper 2 is fixed between the engine leg 1 and the fixed support 3, and the fixed support 3 is fixed on a chassis; the shock absorber 2 is used for absorbing energy generated by vibration and reducing transmission of chassis vibration to an engine. The fixed support 3 comprises a top plate 31, a bottom plate 32 and a side plate 33 connecting the top plate 31 and the bottom plate 32, the fixed point of the engine support leg 1 and the shock absorber 2 is lifted by the side plate 33, and the force arm of impact force on the engine support leg 1 in the vibration process is reduced; the top plate 31 is an inclined plate, an included angle between the top plate 31 and the bottom plate 32 is an acute angle, the shock absorber 2 is fixed on the top plate 31, the inclined arrangement of the top plate 31 decomposes force at the fulcrum of the shock absorber 2, and damage to the shock absorber 2 is reduced. The embodiment gives a better play to the function of the shock absorber 2, and the energy in the impact process is absorbed by the shock absorber 2 to the greatest extent and is not directly transmitted to the engine from the chassis, so that the engine shell and the supporting legs are protected.

As shown in fig. 2, is an exploded view of the forces at the fulcrum of the shock absorber. Taking the horizontal rightward impact force F received by the engine as an example, it is decomposed into a pressure force F1 along the axial direction of the damper 2 and a shearing force F2 acting on the damper 2. If the engine leg 1 is fixed vertically, the force it is subjected to is F, which is greater than F1.

In one embodiment, the damper 2 is a bell-shaped damper. As shown in fig. 3 and 4, the shock absorber 2 includes a center bolt 21, a center positioning block 22, an upper cushion plate 23, a lower cushion plate 24, a movable inner ring 25, a fixed outer ring 26 and a damping block 27, the center positioning block 22 is sleeved on the center bolt 21, the upper cushion plate 23 is sleeved on the upper portion of the center positioning block 22, the longitudinal section of the center positioning block 22 may be convex, the diameter of the upper portion is smaller than that of the lower portion, the movable inner ring 25 and the fixed outer ring 26 are both funnel-shaped, the upper portion of the movable inner ring 25 is sleeved on the lower portion of the center positioning block 22, the lower portion of the movable inner ring 25 is sleeved on the center bolt 21, the fixed outer ring 26 is sleeved on the outer portion of the movable inner ring 25, the damping block 27 is filled between the movable inner ring 25 and the fixed outer ring 26, the axial length of the fixed outer ring 26 is smaller than that of the movable inner ring 25, the damping block 27 surrounds the movable inner ring 25 and extends out of the fixed outer ring 26 in the axial direction, the lower backing plate 24 is sleeved on the central bolt 21, the lower backing plate 24 is positioned below the upper backing plate 23, and the movable inner ring 25, the damping block 27 and the fixed outer ring 26 are positioned between the upper backing plate 23 and the lower backing plate 24.

Preferably, the damping mass 27 is a damping rubber.

The bell-shaped shock absorber can bear force, axial tension or pressure in any direction of radius, the movable inner ring 25 and the fixed outer ring 26 are funnel-shaped and clamp the damping block 27, the stress area of the damping block can be greatly increased, acting force is dispersed, damage of stress on the engine supporting leg 1 under various complex working conditions is reduced, and the engine can be better protected.

The upper backing plate 23 is fixed below the engine supporting leg 1, and the fixed outer ring 26 is fixed below the top plate 31 of the fixed support 3, so that the damping block 27 can better absorb force and has good damping effect. The upper part of the fixed outer ring 26 extends outwards, a fixed hole can be arranged on the extending edge part, and the fixed outer ring 26 is fixedly connected with the top plate 31 through a bolt penetrating through the fixed hole and the top plate 31.

When the fixing is performed, the center bolt 21 of the damper 2 is passed through the engine leg 1, the center of the damper 2 and the top plate 31 and is fastened by the nut 28, and the engine leg 1, the damper 2 and the fixing mount 3 are connected together.

In one embodiment, the top plate 31 and the bottom plate 32 are angled at 45 ° to 60 °. Preferably, the included angle between the top plate 31 and the bottom plate 32 is 60 degrees, so that the stress of the engine leg 1 is reduced.

Engine landing leg 1 is the V type, and one of them face and roof 31 parallel fixed of engine landing leg 1, and engine landing leg 1 is the V type with fixed landing leg fixed, and overall stability is better.

The opening part of the engine supporting leg 1 is provided with a supporting plate 11, the supporting plate 11 is perpendicular to a top plate 31 of the fixed support 3, supporting capacity is enhanced, and stability is improved.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description herein, references to the description of the terms "this embodiment," "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, and simple improvements made in the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. An engine mount, comprising: the engine supporting leg comprises an engine supporting leg (1), a shock absorber (2) and a fixed support (3), wherein the shock absorber (2) is fixed between the engine supporting leg (1) and the fixed support (3);

fixing support (3) include roof (31), bottom plate (32) and connect curb plate (33) of roof (31) and bottom plate (32), roof (31) are the hang plate, roof (31) with the contained angle of bottom plate (32) is the acute angle, bumper shock absorber (2) are fixed on roof (31).

2. The engine mount according to claim 1, characterized in that the damper (2) is a bell-shaped damper.

3. The engine shock mount according to claim 1 or 2, wherein the shock absorber (2) comprises a central bolt (21), a central positioning block (22), an upper padding plate (23), a lower padding plate (24), a movable inner ring (25), a fixed outer ring (26) and a damping block (27), the central positioning block (22) is sleeved on the central bolt (21), the upper padding plate (23) is sleeved on the upper portion of the central positioning block (22), the movable inner ring (25) and the fixed outer ring (26) are both funnel-shaped, the upper portion of the movable inner ring (25) is sleeved on the lower portion of the central positioning block (22), the lower portion of the movable inner ring (25) is sleeved on the central bolt (21), the fixed outer ring (26) is sleeved on the outer portion of the movable inner ring (25), and the damping block (27) is filled between the movable inner ring (25) and the fixed outer ring (26), the axial length of fixed outer lane (26) is less than the axial length of activity inner circle (25), damping piece (27) surround activity inner circle (25) and extend in the axial fixed outer lane (26), lower bolster (24) cover is established on central bolt (21), lower bolster (24) are located go up backing plate (23) below, activity inner circle (25) damping piece (27) with fixed outer lane (26) are located go up backing plate (23) with between lower bolster (24).

4. The engine mount according to claim 3, characterized in that the upper shim plate (23) is fixed under the engine leg (1) and the fixed outer ring (26) is fixed under a top plate (31) of the fixed mount (3).

5. The engine mount of claim 3, characterized in that the damping mass (27) is a damping rubber.

6. The engine mount according to claim 1, wherein the angle between the top plate (31) and the bottom plate (32) is 45 ° to 60 °.

7. The engine mount according to claim 1 or 6, characterized in that the angle between the top plate (31) and the bottom plate (32) is 60 °.

8. The engine mount according to claim 1, characterized in that the engine leg (1) is V-shaped.

9. The engine mount according to claim 8, characterized in that a support plate (11) is provided at the opening of the engine leg (1).

10. The engine mount according to claim 9, characterized in that the support plate (11) is perpendicular to a top plate (31) of the stationary mount (3).